1 /* Quicktime muxer plugin for GStreamer
2 * Copyright (C) 2008-2010 Thiago Santos <thiagoss@embedded.ufcg.edu.br>
3 * Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sf.net>
4 * Copyright (C) 2010 Nokia Corporation. All rights reserved.
5 * Copyright (C) 2014 Jan Schmidt <jan@centricular.com>
6 * Contact: Stefan Kost <stefan.kost@nokia.com>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
24 * Unless otherwise indicated, Source Code is licensed under MIT license.
25 * See further explanation attached in License Statement (distributed in the file
28 * Permission is hereby granted, free of charge, to any person obtaining a copy of
29 * this software and associated documentation files (the "Software"), to deal in
30 * the Software without restriction, including without limitation the rights to
31 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
32 * of the Software, and to permit persons to whom the Software is furnished to do
33 * so, subject to the following conditions:
35 * The above copyright notice and this permission notice shall be included in all
36 * copies or substantial portions of the Software.
38 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
39 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
40 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
41 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
42 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
43 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
49 * SECTION:element-qtmux
50 * @short_description: Muxer for quicktime(.mov) files
52 * This element merges streams (audio and video) into QuickTime(.mov) files.
54 * The following background intends to explain why various similar muxers
55 * are present in this plugin.
57 * The <ulink url="http://www.apple.com/quicktime/resources/qtfileformat.pdf">
58 * QuickTime file format specification</ulink> served as basis for the MP4 file
59 * format specification (mp4mux), and as such the QuickTime file structure is
60 * nearly identical to the so-called ISO Base Media file format defined in
61 * ISO 14496-12 (except for some media specific parts).
62 * In turn, the latter ISO Base Media format was further specialized as a
63 * Motion JPEG-2000 file format in ISO 15444-3 (mj2mux)
64 * and in various 3GPP(2) specs (gppmux).
65 * The fragmented file features defined (only) in ISO Base Media are used by
66 * ISMV files making up (a.o.) Smooth Streaming (ismlmux).
68 * A few properties (#GstQTMux:movie-timescale, #GstQTMux:trak-timescale) allow
69 * adjusting some technical parameters, which might be useful in (rare) cases to
70 * resolve compatibility issues in some situations.
72 * Some other properties influence the result more fundamentally.
73 * A typical mov/mp4 file's metadata (aka moov) is located at the end of the
74 * file, somewhat contrary to this usually being called "the header".
75 * However, a #GstQTMux:faststart file will (with some effort) arrange this to
76 * be located near start of the file, which then allows it e.g. to be played
77 * while downloading. Alternatively, rather than having one chunk of metadata at
78 * start (or end), there can be some metadata at start and most of the other
79 * data can be spread out into fragments of #GstQTMux:fragment-duration.
80 * If such fragmented layout is intended for streaming purposes, then
81 * #GstQTMux:streamable allows foregoing to add index metadata (at the end of
84 * When the maximum duration to be recorded can be known in advance, #GstQTMux
85 * also supports a 'Robust Muxing' mode. In robust muxing mode, space for the
86 * headers are reserved at the start of muxing, and rewritten at a configurable
87 * interval, so that the output file is always playable, even if the recording
88 * is interrupted uncleanly by a crash. Robust muxing mode requires a seekable
89 * output, such as filesink, because it needs to rewrite the start of the file.
91 * To enable robust muxing mode, set the #GstQTMux::reserved-moov-update-period
92 * and #GstQTMux::reserved-max-duration property. Also present is the
93 * #GstQTMux::reserved-bytes-per-sec property, which can be increased if
94 * for some reason the default is not large enough and the initial reserved
95 * space for headers is too small. Applications can monitor the
96 * #GstQTMux::reserved-duration-remaining property to see how close to full
97 * the reserved space is becoming.
100 * <title>Example pipelines</title>
102 * gst-launch-1.0 v4l2src num-buffers=500 ! video/x-raw,width=320,height=240 ! videoconvert ! qtmux ! filesink location=video.mov
104 * Records a video stream captured from a v4l2 device and muxes it into a qt file.
116 #include <glib/gstdio.h>
119 #include <gst/base/gstcollectpads.h>
120 #include <gst/base/gstbytereader.h>
121 #include <gst/base/gstbitreader.h>
122 #include <gst/audio/audio.h>
123 #include <gst/video/video.h>
124 #include <gst/tag/tag.h>
125 #include <gst/pbutils/pbutils.h>
127 #include <sys/types.h>
129 #include <io.h> /* lseek, open, close, read */
131 #define lseek _lseeki64
133 #define off_t guint64
137 #define ftruncate g_win32_ftruncate
144 #include "gstqtmux.h"
146 GST_DEBUG_CATEGORY_STATIC (gst_qt_mux_debug);
147 #define GST_CAT_DEFAULT gst_qt_mux_debug
150 #define ABSDIFF(a, b) ((a) > (b) ? (a) - (b) : (b) - (a))
155 * The basic building blocks of MP4 files are:
156 * - an 'ftyp' box at the very start
157 * - an 'mdat' box which contains the raw audio/video/subtitle data;
158 * this is just a bunch of bytes, completely unframed and possibly
159 * unordered with no additional meta-information
160 * - a 'moov' box that contains information about the different streams
161 * and what they contain, as well as sample tables for each stream
162 * that tell the demuxer where in the mdat box each buffer/sample is
163 * and what its duration/timestamp etc. is, and whether it's a
165 * Additionally, fragmented MP4 works by writing chunks of data in
166 * pairs of 'moof' and 'mdat' boxes:
167 * - 'moof' boxes, header preceding each mdat fragment describing the
168 * contents, like a moov but only for that fragment.
169 * - a 'mfra' box for Fragmented MP4, which is written at the end and
170 * contains a summary of all fragments and seek tables.
172 * Currently mp4mux can work in 4 different modes / generate 4 types
173 * of output files/streams:
175 * - Normal mp4: mp4mux will write a little ftyp identifier at the
176 * beginning, then start an mdat box into which it will write all the
177 * sample data. At EOS it will then write the moov header with track
178 * headers and sample tables at the end of the file, and rewrite the
179 * start of the file to fix up the mdat box size at the beginning.
180 * It has to wait for EOS to write the moov (which includes the
181 * sample tables) because it doesn't know how much space those
182 * tables will be. The output downstream must be seekable to rewrite
183 * the mdat box at EOS.
185 * - Fragmented mp4: moov header with track headers at start
186 * but no sample table, followed by N fragments, each containing
187 * track headers with sample tables followed by some data. Downstream
188 * does not need to be seekable if the 'streamable' flag is TRUE,
189 * as the final mfra and total duration will be omitted.
191 * - Fast-start mp4: the goal here is to create a file where the moov
192 * headers are at the beginning; what mp4mux will do is write all
193 * sample data into a temp file and build moov header plus sample
194 * tables in memory and then when EOS comes, it will push out the
195 * moov header plus sample tables at the beginning, followed by the
196 * mdat sample data at the end which is read in from the temp file
197 * Files created in this mode are better for streaming over the
198 * network, since the client doesn't have to seek to the end of the
199 * file to get the headers, but it requires copying all sample data
200 * out of the temp file at EOS, which can be expensive. Downstream does
201 * not need to be seekable, because of the use of the temp file.
203 * - Robust Muxing mode: In this mode, qtmux uses the reserved-max-duration
204 * and reserved-moov-update-period properties to reserve free space
205 * at the start of the file and periodically write the MOOV atom out
206 * to it. That means that killing the muxing at any point still
207 * results in a playable file, at the cost of wasting some amount of
208 * free space at the start of file. The approximate recording duration
209 * has to be known in advance to estimate how much free space to reserve
210 * for the moov, and the downstream must be seekable.
211 * If the moov header grows larger than the reserved space, an error
212 * is generated - so it's better to over-estimate the amount of space
213 * to reserve. To ensure the file is playable at any point, the moov
214 * is updated using a 'ping-pong' strategy, so the output is never in
218 #ifndef GST_REMOVE_DEPRECATED
227 gst_qt_mux_dts_method_get_type (void)
229 static GType gst_qt_mux_dts_method = 0;
231 if (!gst_qt_mux_dts_method) {
232 static const GEnumValue dts_methods[] = {
233 {DTS_METHOD_DD, "delta/duration", "dd"},
234 {DTS_METHOD_REORDER, "reorder", "reorder"},
235 {DTS_METHOD_ASC, "ascending", "asc"},
239 gst_qt_mux_dts_method =
240 g_enum_register_static ("GstQTMuxDtsMethods", dts_methods);
243 return gst_qt_mux_dts_method;
246 #define GST_TYPE_QT_MUX_DTS_METHOD \
247 (gst_qt_mux_dts_method_get_type ())
250 /* QTMux signals and args */
260 PROP_MOVIE_TIMESCALE,
263 PROP_FAST_START_TEMP_FILE,
264 PROP_MOOV_RECOV_FILE,
265 PROP_FRAGMENT_DURATION,
267 PROP_RESERVED_MAX_DURATION,
268 PROP_RESERVED_DURATION_REMAINING,
269 PROP_RESERVED_MOOV_UPDATE_PERIOD,
270 PROP_RESERVED_BYTES_PER_SEC,
271 #ifndef GST_REMOVE_DEPRECATED
275 PROP_INTERLEAVE_BYTES,
276 PROP_INTERLEAVE_TIME,
277 PROP_MAX_RAW_AUDIO_DRIFT,
280 /* some spare for header size as well */
281 #define MDAT_LARGE_FILE_LIMIT ((guint64) 1024 * 1024 * 1024 * 2)
283 #define DEFAULT_MOVIE_TIMESCALE 0
284 #define DEFAULT_TRAK_TIMESCALE 0
285 #define DEFAULT_DO_CTTS TRUE
286 #define DEFAULT_FAST_START FALSE
287 #define DEFAULT_FAST_START_TEMP_FILE NULL
288 #define DEFAULT_MOOV_RECOV_FILE NULL
289 #define DEFAULT_FRAGMENT_DURATION 0
290 #define DEFAULT_STREAMABLE TRUE
291 #ifndef GST_REMOVE_DEPRECATED
292 #define DEFAULT_DTS_METHOD DTS_METHOD_REORDER
294 #define DEFAULT_RESERVED_MAX_DURATION GST_CLOCK_TIME_NONE
295 #define DEFAULT_RESERVED_MOOV_UPDATE_PERIOD GST_CLOCK_TIME_NONE
296 #define DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK 550
297 #define DEFAULT_INTERLEAVE_BYTES 0
298 #define DEFAULT_INTERLEAVE_TIME 250*GST_MSECOND
299 #define DEFAULT_MAX_RAW_AUDIO_DRIFT 40 * GST_MSECOND
301 static void gst_qt_mux_finalize (GObject * object);
303 static GstStateChangeReturn gst_qt_mux_change_state (GstElement * element,
304 GstStateChange transition);
306 /* property functions */
307 static void gst_qt_mux_set_property (GObject * object,
308 guint prop_id, const GValue * value, GParamSpec * pspec);
309 static void gst_qt_mux_get_property (GObject * object,
310 guint prop_id, GValue * value, GParamSpec * pspec);
313 static GstPad *gst_qt_mux_request_new_pad (GstElement * element,
314 GstPadTemplate * templ, const gchar * name, const GstCaps * caps);
315 static void gst_qt_mux_release_pad (GstElement * element, GstPad * pad);
318 static gboolean gst_qt_mux_sink_event (GstCollectPads * pads,
319 GstCollectData * data, GstEvent * event, gpointer user_data);
321 static GstFlowReturn gst_qt_mux_collected (GstCollectPads * pads,
323 static GstFlowReturn gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad,
327 gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux);
329 static GstElementClass *parent_class = NULL;
332 gst_qt_mux_base_init (gpointer g_class)
334 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
335 GstQTMuxClass *klass = (GstQTMuxClass *) g_class;
336 GstQTMuxClassParams *params;
337 GstPadTemplate *videosinktempl, *audiosinktempl, *subtitlesinktempl;
338 GstPadTemplate *srctempl;
339 gchar *longname, *description;
342 (GstQTMuxClassParams *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (g_class),
343 GST_QT_MUX_PARAMS_QDATA);
344 g_assert (params != NULL);
346 /* construct the element details struct */
347 longname = g_strdup_printf ("%s Muxer", params->prop->long_name);
348 description = g_strdup_printf ("Multiplex audio and video into a %s file",
349 params->prop->long_name);
350 gst_element_class_set_static_metadata (element_class, longname,
351 "Codec/Muxer", description,
352 "Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>");
354 g_free (description);
357 srctempl = gst_pad_template_new ("src", GST_PAD_SRC,
358 GST_PAD_ALWAYS, params->src_caps);
359 gst_element_class_add_pad_template (element_class, srctempl);
361 if (params->audio_sink_caps) {
362 audiosinktempl = gst_pad_template_new ("audio_%u",
363 GST_PAD_SINK, GST_PAD_REQUEST, params->audio_sink_caps);
364 gst_element_class_add_pad_template (element_class, audiosinktempl);
367 if (params->video_sink_caps) {
368 videosinktempl = gst_pad_template_new ("video_%u",
369 GST_PAD_SINK, GST_PAD_REQUEST, params->video_sink_caps);
370 gst_element_class_add_pad_template (element_class, videosinktempl);
373 if (params->subtitle_sink_caps) {
374 subtitlesinktempl = gst_pad_template_new ("subtitle_%u",
375 GST_PAD_SINK, GST_PAD_REQUEST, params->subtitle_sink_caps);
376 gst_element_class_add_pad_template (element_class, subtitlesinktempl);
379 klass->format = params->prop->format;
383 gst_qt_mux_class_init (GstQTMuxClass * klass)
385 GObjectClass *gobject_class;
386 GstElementClass *gstelement_class;
387 GParamFlags streamable_flags;
388 const gchar *streamable_desc;
390 #define STREAMABLE_DESC "If set to true, the output should be as if it is to "\
391 "be streamed and hence no indexes written or duration written."
393 gobject_class = (GObjectClass *) klass;
394 gstelement_class = (GstElementClass *) klass;
396 parent_class = g_type_class_peek_parent (klass);
398 gobject_class->finalize = gst_qt_mux_finalize;
399 gobject_class->get_property = gst_qt_mux_get_property;
400 gobject_class->set_property = gst_qt_mux_set_property;
402 streamable_flags = G_PARAM_READWRITE | G_PARAM_CONSTRUCT;
403 if (klass->format == GST_QT_MUX_FORMAT_ISML) {
404 streamable_desc = STREAMABLE_DESC;
405 streamable = DEFAULT_STREAMABLE;
408 STREAMABLE_DESC " (DEPRECATED, only valid for fragmented MP4)";
409 streamable_flags |= G_PARAM_DEPRECATED;
413 g_object_class_install_property (gobject_class, PROP_MOVIE_TIMESCALE,
414 g_param_spec_uint ("movie-timescale", "Movie timescale",
415 "Timescale to use in the movie (units per second, 0 == default)",
416 0, G_MAXUINT32, DEFAULT_MOVIE_TIMESCALE,
417 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
418 g_object_class_install_property (gobject_class, PROP_TRAK_TIMESCALE,
419 g_param_spec_uint ("trak-timescale", "Track timescale",
420 "Timescale to use for the tracks (units per second, 0 is automatic)",
421 0, G_MAXUINT32, DEFAULT_TRAK_TIMESCALE,
422 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
423 g_object_class_install_property (gobject_class, PROP_DO_CTTS,
424 g_param_spec_boolean ("presentation-time",
425 "Include presentation-time info",
426 "Calculate and include presentation/composition time "
427 "(in addition to decoding time)", DEFAULT_DO_CTTS,
428 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
429 #ifndef GST_REMOVE_DEPRECATED
430 g_object_class_install_property (gobject_class, PROP_DTS_METHOD,
431 g_param_spec_enum ("dts-method", "dts-method",
432 "Method to determine DTS time (DEPRECATED)",
433 GST_TYPE_QT_MUX_DTS_METHOD, DEFAULT_DTS_METHOD,
434 G_PARAM_DEPRECATED | G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
435 G_PARAM_STATIC_STRINGS));
437 g_object_class_install_property (gobject_class, PROP_FAST_START,
438 g_param_spec_boolean ("faststart", "Format file to faststart",
439 "If the file should be formatted for faststart (headers first)",
440 DEFAULT_FAST_START, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
441 g_object_class_install_property (gobject_class, PROP_FAST_START_TEMP_FILE,
442 g_param_spec_string ("faststart-file", "File to use for storing buffers",
443 "File that will be used temporarily to store data from the stream "
444 "when creating a faststart file. If null a filepath will be "
445 "created automatically", DEFAULT_FAST_START_TEMP_FILE,
446 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
447 g_object_class_install_property (gobject_class, PROP_MOOV_RECOV_FILE,
448 g_param_spec_string ("moov-recovery-file",
449 "File to store data for posterior moov atom recovery",
450 "File to be used to store "
451 "data for moov atom making movie file recovery possible in case "
452 "of a crash during muxing. Null for disabled. (Experimental)",
453 DEFAULT_MOOV_RECOV_FILE,
454 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
455 g_object_class_install_property (gobject_class, PROP_FRAGMENT_DURATION,
456 g_param_spec_uint ("fragment-duration", "Fragment duration",
457 "Fragment durations in ms (produce a fragmented file if > 0)",
458 0, G_MAXUINT32, klass->format == GST_QT_MUX_FORMAT_ISML ?
459 2000 : DEFAULT_FRAGMENT_DURATION,
460 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
461 g_object_class_install_property (gobject_class, PROP_STREAMABLE,
462 g_param_spec_boolean ("streamable", "Streamable", streamable_desc,
463 streamable, streamable_flags | G_PARAM_STATIC_STRINGS));
464 g_object_class_install_property (gobject_class, PROP_RESERVED_MAX_DURATION,
465 g_param_spec_uint64 ("reserved-max-duration",
466 "Reserved maximum file duration (ns)",
467 "When set to a value > 0, reserves space for index tables at the "
468 "beginning of the file.",
469 0, G_MAXUINT64, DEFAULT_RESERVED_MAX_DURATION,
470 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
471 g_object_class_install_property (gobject_class,
472 PROP_RESERVED_DURATION_REMAINING,
473 g_param_spec_uint64 ("reserved-duration-remaining",
474 "Report the approximate amount of remaining recording space (ns)",
475 "Reports the approximate amount of remaining moov header space "
476 "reserved using reserved-max-duration", 0, G_MAXUINT64, 0,
477 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
478 g_object_class_install_property (gobject_class,
479 PROP_RESERVED_MOOV_UPDATE_PERIOD,
480 g_param_spec_uint64 ("reserved-moov-update-period",
481 "Interval at which to update index tables (ns)",
482 "When used with reserved-max-duration, periodically updates the "
483 "index tables with information muxed so far.", 0, G_MAXUINT64,
484 DEFAULT_RESERVED_MOOV_UPDATE_PERIOD,
485 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
486 g_object_class_install_property (gobject_class, PROP_RESERVED_BYTES_PER_SEC,
487 g_param_spec_uint ("reserved-bytes-per-sec",
488 "Reserved MOOV bytes per second, per track",
489 "Multiplier for converting reserved-max-duration into bytes of header to reserve, per second, per track",
490 0, 10000, DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK,
491 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
492 g_object_class_install_property (gobject_class, PROP_INTERLEAVE_BYTES,
493 g_param_spec_uint64 ("interleave-bytes", "Interleave (bytes)",
494 "Interleave between streams in bytes",
495 0, G_MAXUINT64, DEFAULT_INTERLEAVE_BYTES,
496 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
497 g_object_class_install_property (gobject_class, PROP_INTERLEAVE_TIME,
498 g_param_spec_uint64 ("interleave-time", "Interleave (time)",
499 "Interleave between streams in nanoseconds",
500 0, G_MAXUINT64, DEFAULT_INTERLEAVE_TIME,
501 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
502 g_object_class_install_property (gobject_class, PROP_MAX_RAW_AUDIO_DRIFT,
503 g_param_spec_uint64 ("max-raw-audio-drift", "Max Raw Audio Drift",
504 "Maximum allowed drift of raw audio samples vs. timestamps in nanoseconds",
505 0, G_MAXUINT64, DEFAULT_MAX_RAW_AUDIO_DRIFT,
506 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
508 gstelement_class->request_new_pad =
509 GST_DEBUG_FUNCPTR (gst_qt_mux_request_new_pad);
510 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_qt_mux_change_state);
511 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_qt_mux_release_pad);
515 gst_qt_mux_pad_reset (GstQTPad * qtpad)
518 qtpad->is_out_of_order = FALSE;
519 qtpad->sample_size = 0;
522 qtpad->sample_offset = 0;
523 qtpad->dts_adjustment = GST_CLOCK_TIME_NONE;
524 qtpad->first_ts = GST_CLOCK_TIME_NONE;
525 qtpad->first_dts = GST_CLOCK_TIME_NONE;
526 qtpad->prepare_buf_func = NULL;
527 qtpad->create_empty_buffer = NULL;
528 qtpad->avg_bitrate = 0;
529 qtpad->max_bitrate = 0;
530 qtpad->total_duration = 0;
531 qtpad->total_bytes = 0;
532 qtpad->sparse = FALSE;
534 gst_buffer_replace (&qtpad->last_buf, NULL);
537 gst_tag_list_unref (qtpad->tags);
541 /* reference owned elsewhere */
543 qtpad->tc_trak = NULL;
546 atom_traf_free (qtpad->traf);
549 atom_array_clear (&qtpad->fragment_buffers);
551 /* reference owned elsewhere */
554 qtpad->first_pts = GST_CLOCK_TIME_NONE;
557 gst_video_time_code_free (qtpad->first_tc);
558 qtpad->first_tc = NULL;
562 * Takes GstQTMux back to its initial state
565 gst_qt_mux_reset (GstQTMux * qtmux, gboolean alloc)
569 qtmux->state = GST_QT_MUX_STATE_NONE;
570 qtmux->header_size = 0;
571 qtmux->mdat_size = 0;
574 qtmux->longest_chunk = GST_CLOCK_TIME_NONE;
575 qtmux->fragment_sequence = 0;
578 atom_ftyp_free (qtmux->ftyp);
582 atom_moov_free (qtmux->moov);
586 atom_mfra_free (qtmux->mfra);
589 if (qtmux->fast_start_file) {
590 fclose (qtmux->fast_start_file);
591 g_remove (qtmux->fast_start_file_path);
592 qtmux->fast_start_file = NULL;
594 if (qtmux->moov_recov_file) {
595 fclose (qtmux->moov_recov_file);
596 qtmux->moov_recov_file = NULL;
598 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
599 AtomInfo *ainfo = (AtomInfo *) walk->data;
600 ainfo->free_func (ainfo->atom);
603 g_slist_free (qtmux->extra_atoms);
604 qtmux->extra_atoms = NULL;
606 GST_OBJECT_LOCK (qtmux);
607 gst_tag_setter_reset_tags (GST_TAG_SETTER (qtmux));
608 GST_OBJECT_UNLOCK (qtmux);
611 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
612 GstQTPad *qtpad = (GstQTPad *) walk->data;
613 gst_qt_mux_pad_reset (qtpad);
615 /* hm, moov_free above yanked the traks away from us,
616 * so do not free, but do clear */
621 qtmux->moov = atom_moov_new (qtmux->context);
622 /* ensure all is as nice and fresh as request_new_pad would provide it */
623 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
624 GstQTPad *qtpad = (GstQTPad *) walk->data;
626 qtpad->trak = atom_trak_new (qtmux->context);
627 atom_moov_add_trak (qtmux->moov, qtpad->trak);
631 qtmux->current_pad = NULL;
632 qtmux->current_chunk_size = 0;
633 qtmux->current_chunk_duration = 0;
634 qtmux->current_chunk_offset = -1;
636 qtmux->reserved_moov_size = 0;
637 qtmux->last_moov_update = GST_CLOCK_TIME_NONE;
638 qtmux->muxed_since_last_update = 0;
639 qtmux->reserved_duration_remaining = GST_CLOCK_TIME_NONE;
643 gst_qt_mux_init (GstQTMux * qtmux, GstQTMuxClass * qtmux_klass)
645 GstElementClass *klass = GST_ELEMENT_CLASS (qtmux_klass);
646 GstPadTemplate *templ;
648 templ = gst_element_class_get_pad_template (klass, "src");
649 qtmux->srcpad = gst_pad_new_from_template (templ, "src");
650 gst_pad_use_fixed_caps (qtmux->srcpad);
651 gst_element_add_pad (GST_ELEMENT (qtmux), qtmux->srcpad);
653 qtmux->sinkpads = NULL;
654 qtmux->collect = gst_collect_pads_new ();
655 gst_collect_pads_set_event_function (qtmux->collect,
656 GST_DEBUG_FUNCPTR (gst_qt_mux_sink_event), qtmux);
657 gst_collect_pads_set_clip_function (qtmux->collect,
658 GST_DEBUG_FUNCPTR (gst_collect_pads_clip_running_time), qtmux);
659 gst_collect_pads_set_function (qtmux->collect,
660 GST_DEBUG_FUNCPTR (gst_qt_mux_collected), qtmux);
662 /* properties set to default upon construction */
664 qtmux->reserved_max_duration = DEFAULT_RESERVED_MAX_DURATION;
665 qtmux->reserved_moov_update_period = DEFAULT_RESERVED_MOOV_UPDATE_PERIOD;
666 qtmux->reserved_bytes_per_sec_per_trak =
667 DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK;
668 qtmux->interleave_bytes = DEFAULT_INTERLEAVE_BYTES;
669 qtmux->interleave_time = DEFAULT_INTERLEAVE_TIME;
670 qtmux->max_raw_audio_drift = DEFAULT_MAX_RAW_AUDIO_DRIFT;
672 /* always need this */
674 atoms_context_new (gst_qt_mux_map_format_to_flavor (qtmux_klass->format));
676 /* internals to initial state */
677 gst_qt_mux_reset (qtmux, TRUE);
682 gst_qt_mux_finalize (GObject * object)
684 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
686 gst_qt_mux_reset (qtmux, FALSE);
688 g_free (qtmux->fast_start_file_path);
689 g_free (qtmux->moov_recov_file_path);
691 atoms_context_free (qtmux->context);
692 gst_object_unref (qtmux->collect);
694 g_slist_free (qtmux->sinkpads);
696 G_OBJECT_CLASS (parent_class)->finalize (object);
700 gst_qt_mux_prepare_jpc_buffer (GstQTPad * qtpad, GstBuffer * buf,
707 GST_LOG_OBJECT (qtmux, "Preparing jpc buffer");
712 size = gst_buffer_get_size (buf);
713 newbuf = gst_buffer_new_and_alloc (size + 8);
714 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_ALL, 8, size);
716 gst_buffer_map (newbuf, &map, GST_MAP_WRITE);
717 GST_WRITE_UINT32_BE (map.data, map.size);
718 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_jp2c);
720 gst_buffer_unmap (buf, &map);
721 gst_buffer_unref (buf);
727 gst_qt_mux_prepare_tx3g_buffer (GstQTPad * qtpad, GstBuffer * buf,
734 const guint8 *dataend;
736 GST_LOG_OBJECT (qtmux, "Preparing tx3g buffer %" GST_PTR_FORMAT, buf);
741 gst_buffer_map (buf, &frommap, GST_MAP_READ);
743 dataend = memchr (frommap.data, 0, frommap.size);
744 size = dataend ? dataend - frommap.data : frommap.size;
745 newbuf = gst_buffer_new_and_alloc (size + 2);
747 gst_buffer_map (newbuf, &tomap, GST_MAP_WRITE);
749 GST_WRITE_UINT16_BE (tomap.data, size);
750 memcpy (tomap.data + 2, frommap.data, size);
752 gst_buffer_unmap (newbuf, &tomap);
753 gst_buffer_unmap (buf, &frommap);
755 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_METADATA, 0, size);
757 /* gst_buffer_copy_into is trying to be too clever and
758 * won't copy duration when size is different */
759 GST_BUFFER_DURATION (newbuf) = GST_BUFFER_DURATION (buf);
761 gst_buffer_unref (buf);
767 gst_qt_mux_pad_add_ac3_extension (GstQTMux * qtmux, GstQTPad * qtpad,
768 guint8 fscod, guint8 frmsizcod, guint8 bsid, guint8 bsmod, guint8 acmod,
773 g_return_if_fail (qtpad->trak_ste);
775 ext = build_ac3_extension (fscod, bsid, bsmod, acmod, lfe_on, frmsizcod >> 1); /* bitrate_code is inside frmsizcod */
777 sample_table_entry_add_ext_atom (qtpad->trak_ste, ext);
781 gst_qt_mux_prepare_parse_ac3_frame (GstQTPad * qtpad, GstBuffer * buf,
785 GstByteReader reader;
788 if (!gst_buffer_map (buf, &map, GST_MAP_READ)) {
789 GST_WARNING_OBJECT (qtpad->collect.pad, "Failed to map buffer");
793 if (G_UNLIKELY (map.size < 8))
796 gst_byte_reader_init (&reader, map.data, map.size);
797 off = gst_byte_reader_masked_scan_uint32 (&reader, 0xffff0000, 0x0b770000,
802 guint8 fscod, frmsizcod, bsid, bsmod, acmod, lfe_on;
804 GST_DEBUG_OBJECT (qtpad->collect.pad, "Found ac3 sync point at offset: %u",
807 gst_bit_reader_init (&bits, map.data, map.size);
809 /* off + sync + crc */
810 gst_bit_reader_skip_unchecked (&bits, off * 8 + 16 + 16);
812 fscod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 2);
813 frmsizcod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 6);
814 bsid = gst_bit_reader_get_bits_uint8_unchecked (&bits, 5);
815 bsmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
816 acmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
818 if ((acmod & 0x1) && (acmod != 0x1)) /* 3 front channels */
819 gst_bit_reader_skip_unchecked (&bits, 2);
820 if ((acmod & 0x4)) /* if a surround channel exists */
821 gst_bit_reader_skip_unchecked (&bits, 2);
822 if (acmod == 0x2) /* if in 2/0 mode */
823 gst_bit_reader_skip_unchecked (&bits, 2);
825 lfe_on = gst_bit_reader_get_bits_uint8_unchecked (&bits, 1);
827 gst_qt_mux_pad_add_ac3_extension (qtmux, qtpad, fscod, frmsizcod, bsid,
828 bsmod, acmod, lfe_on);
830 /* AC-3 spec says that those values should be constant for the
831 * whole stream when muxed in mp4. We trust the input follows it */
832 GST_DEBUG_OBJECT (qtpad->collect.pad, "Data parsed, removing "
833 "prepare buffer function");
834 qtpad->prepare_buf_func = NULL;
838 gst_buffer_unmap (buf, &map);
843 gst_qt_mux_create_empty_tx3g_buffer (GstQTPad * qtpad, gint64 duration)
848 GST_WRITE_UINT16_BE (data, 0);
850 return gst_buffer_new_wrapped (data, 2);
854 gst_qt_mux_add_mp4_tag (GstQTMux * qtmux, const GstTagList * list,
855 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
857 switch (gst_tag_get_type (tag)) {
863 if (!gst_tag_list_get_string (list, tag, &str) || !str)
865 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
866 GST_FOURCC_ARGS (fourcc), str);
867 atom_udta_add_str_tag (udta, fourcc, str);
876 if (!gst_tag_list_get_double (list, tag, &value))
878 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
879 GST_FOURCC_ARGS (fourcc), (gint) value);
880 atom_udta_add_uint_tag (udta, fourcc, 21, (gint) value);
887 /* paired unsigned integers */
891 got_tag = gst_tag_list_get_uint (list, tag, &value);
892 got_tag = gst_tag_list_get_uint (list, tag2, &count) || got_tag;
895 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u/%u",
896 GST_FOURCC_ARGS (fourcc), value, count);
897 atom_udta_add_uint_tag (udta, fourcc, 0,
898 value << 16 | (count & 0xFFFF));
900 /* unpaired unsigned integers */
901 if (!gst_tag_list_get_uint (list, tag, &value))
903 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
904 GST_FOURCC_ARGS (fourcc), value);
905 atom_udta_add_uint_tag (udta, fourcc, 1, value);
910 g_assert_not_reached ();
916 gst_qt_mux_add_mp4_date (GstQTMux * qtmux, const GstTagList * list,
917 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
925 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
927 if (!gst_tag_list_get_date (list, tag, &date) || !date)
930 year = g_date_get_year (date);
931 month = g_date_get_month (date);
932 day = g_date_get_day (date);
936 if (year == G_DATE_BAD_YEAR && month == G_DATE_BAD_MONTH &&
937 day == G_DATE_BAD_DAY) {
938 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
942 str = g_strdup_printf ("%u-%u-%u", year, month, day);
943 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
944 GST_FOURCC_ARGS (fourcc), str);
945 atom_udta_add_str_tag (udta, fourcc, str);
950 gst_qt_mux_add_mp4_cover (GstQTMux * qtmux, const GstTagList * list,
951 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
953 GValue value = { 0, };
957 GstStructure *structure;
961 g_return_if_fail (gst_tag_get_type (tag) == GST_TYPE_SAMPLE);
963 if (!gst_tag_list_copy_value (&value, list, tag))
966 sample = gst_value_get_sample (&value);
971 buf = gst_sample_get_buffer (sample);
975 caps = gst_sample_get_caps (sample);
977 GST_WARNING_OBJECT (qtmux, "preview image without caps");
981 GST_DEBUG_OBJECT (qtmux, "preview image caps %" GST_PTR_FORMAT, caps);
983 structure = gst_caps_get_structure (caps, 0);
984 if (gst_structure_has_name (structure, "image/jpeg"))
986 else if (gst_structure_has_name (structure, "image/png"))
990 GST_WARNING_OBJECT (qtmux, "preview image format not supported");
994 gst_buffer_map (buf, &map, GST_MAP_READ);
995 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT
996 " -> image size %" G_GSIZE_FORMAT "", GST_FOURCC_ARGS (fourcc), map.size);
997 atom_udta_add_tag (udta, fourcc, flags, map.data, map.size);
998 gst_buffer_unmap (buf, &map);
1000 g_value_unset (&value);
1004 gst_qt_mux_add_3gp_str (GstQTMux * qtmux, const GstTagList * list,
1005 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1010 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_STRING);
1011 g_return_if_fail (!tag2 || gst_tag_get_type (tag2) == G_TYPE_UINT);
1013 if (!gst_tag_list_get_string (list, tag, &str) || !str)
1017 if (!gst_tag_list_get_uint (list, tag2, &number))
1021 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1022 GST_FOURCC_ARGS (fourcc), str);
1023 atom_udta_add_3gp_str_tag (udta, fourcc, str);
1025 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s/%d",
1026 GST_FOURCC_ARGS (fourcc), str, number);
1027 atom_udta_add_3gp_str_int_tag (udta, fourcc, str, number);
1034 gst_qt_mux_add_3gp_date (GstQTMux * qtmux, const GstTagList * list,
1035 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1040 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
1042 if (!gst_tag_list_get_date (list, tag, &date) || !date)
1045 year = g_date_get_year (date);
1048 if (year == G_DATE_BAD_YEAR) {
1049 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
1053 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %d",
1054 GST_FOURCC_ARGS (fourcc), year);
1055 atom_udta_add_3gp_uint_tag (udta, fourcc, year);
1059 gst_qt_mux_add_3gp_location (GstQTMux * qtmux, const GstTagList * list,
1060 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1062 gdouble latitude = -360, longitude = -360, altitude = 0;
1063 gchar *location = NULL;
1064 guint8 *data, *ddata;
1065 gint size = 0, len = 0;
1066 gboolean ret = FALSE;
1068 g_return_if_fail (strcmp (tag, GST_TAG_GEO_LOCATION_NAME) == 0);
1070 ret = gst_tag_list_get_string (list, tag, &location);
1071 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LONGITUDE,
1073 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LATITUDE,
1075 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_ELEVATION,
1082 len = strlen (location);
1083 size += len + 1 + 2;
1085 /* role + (long, lat, alt) + body + notes */
1086 size += 1 + 3 * 4 + 1 + 1;
1088 data = ddata = g_malloc (size);
1091 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1094 memcpy (data + 2, location, len);
1095 GST_WRITE_UINT8 (data + 2 + len, 0);
1096 data += len + 1 + 2;
1098 GST_WRITE_UINT8 (data, 0);
1099 /* long, lat, alt */
1100 #define QT_WRITE_SFP32(data, fp) GST_WRITE_UINT32_BE(data, (guint32) ((gint) (fp * 65536.0)))
1101 QT_WRITE_SFP32 (data + 1, longitude);
1102 QT_WRITE_SFP32 (data + 5, latitude);
1103 QT_WRITE_SFP32 (data + 9, altitude);
1104 /* neither astronomical body nor notes */
1105 GST_WRITE_UINT16_BE (data + 13, 0);
1107 GST_DEBUG_OBJECT (qtmux, "Adding tag 'loci'");
1108 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1113 gst_qt_mux_add_3gp_keywords (GstQTMux * qtmux, const GstTagList * list,
1114 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1116 gchar *keywords = NULL;
1117 guint8 *data, *ddata;
1121 g_return_if_fail (strcmp (tag, GST_TAG_KEYWORDS) == 0);
1123 if (!gst_tag_list_get_string (list, tag, &keywords) || !keywords)
1126 kwds = g_strsplit (keywords, ",", 0);
1130 for (i = 0; kwds[i]; i++) {
1131 /* size byte + null-terminator */
1132 size += strlen (kwds[i]) + 1 + 1;
1135 /* language tag + count + keywords */
1138 data = ddata = g_malloc (size);
1141 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1143 GST_WRITE_UINT8 (data + 2, i);
1146 for (i = 0; kwds[i]; ++i) {
1147 gint len = strlen (kwds[i]);
1149 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1150 GST_FOURCC_ARGS (fourcc), kwds[i]);
1152 GST_WRITE_UINT8 (data, len + 1);
1153 memcpy (data + 1, kwds[i], len + 1);
1159 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1164 gst_qt_mux_parse_classification_string (GstQTMux * qtmux, const gchar * input,
1165 guint32 * p_fourcc, guint16 * p_table, gchar ** p_content)
1173 size = strlen (input);
1175 if (size < 4 + 3 + 1 + 1 + 1) {
1176 /* at least the minimum xxxx://y/z */
1177 GST_WARNING_OBJECT (qtmux, "Classification tag input (%s) too short, "
1182 /* read the fourcc */
1183 memcpy (&fourcc, data, 4);
1187 if (strncmp (data, "://", 3) != 0) {
1193 /* read the table number */
1194 if (sscanf (data, "%d", &table) != 1) {
1198 GST_WARNING_OBJECT (qtmux, "Invalid table number in classification tag (%d)"
1199 ", table numbers should be positive, ignoring tag", table);
1203 /* find the next / */
1204 while (size > 0 && data[0] != '/') {
1211 g_assert (data[0] == '/');
1220 /* read up the rest of the string */
1221 *p_content = g_strdup (data);
1222 *p_table = (guint16) table;
1228 GST_WARNING_OBJECT (qtmux, "Ignoring classification tag as "
1229 "input (%s) didn't match the expected entitycode://table/content",
1236 gst_qt_mux_add_3gp_classification (GstQTMux * qtmux, const GstTagList * list,
1237 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1239 gchar *clsf_data = NULL;
1243 gchar *content = NULL;
1246 g_return_if_fail (strcmp (tag, GST_TAG_3GP_CLASSIFICATION) == 0);
1248 if (!gst_tag_list_get_string (list, tag, &clsf_data) || !clsf_data)
1251 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1252 GST_FOURCC_ARGS (fourcc), clsf_data);
1254 /* parse the string, format is:
1255 * entityfourcc://table/content
1257 gst_qt_mux_parse_classification_string (qtmux, clsf_data, &entity, &table,
1261 size = strlen (content) + 1;
1263 /* now we have everything, build the atom
1264 * atom description is at 3GPP TS 26.244 V8.2.0 (2009-09) */
1265 data = g_malloc (4 + 2 + 2 + size);
1266 GST_WRITE_UINT32_LE (data, entity);
1267 GST_WRITE_UINT16_BE (data + 4, (guint16) table);
1268 GST_WRITE_UINT16_BE (data + 6, 0);
1269 memcpy (data + 8, content, size);
1272 atom_udta_add_3gp_tag (udta, fourcc, data, 4 + 2 + 2 + size);
1276 typedef void (*GstQTMuxAddUdtaTagFunc) (GstQTMux * mux,
1277 const GstTagList * list, AtomUDTA * udta, const char *tag,
1278 const char *tag2, guint32 fourcc);
1281 * Struct to record mappings from gstreamer tags to fourcc codes
1283 typedef struct _GstTagToFourcc
1286 const gchar *gsttag;
1287 const gchar *gsttag2;
1288 const GstQTMuxAddUdtaTagFunc func;
1291 /* tag list tags to fourcc matching */
1292 static const GstTagToFourcc tag_matches_mp4[] = {
1293 {FOURCC__alb, GST_TAG_ALBUM, NULL, gst_qt_mux_add_mp4_tag},
1294 {FOURCC_soal, GST_TAG_ALBUM_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1295 {FOURCC__ART, GST_TAG_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1296 {FOURCC_soar, GST_TAG_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1297 {FOURCC_aART, GST_TAG_ALBUM_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1298 {FOURCC_soaa, GST_TAG_ALBUM_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1299 {FOURCC__swr, GST_TAG_APPLICATION_NAME, NULL, gst_qt_mux_add_mp4_tag},
1300 {FOURCC__cmt, GST_TAG_COMMENT, NULL, gst_qt_mux_add_mp4_tag},
1301 {FOURCC__wrt, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_mp4_tag},
1302 {FOURCC_soco, GST_TAG_COMPOSER_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1303 {FOURCC_tvsh, GST_TAG_SHOW_NAME, NULL, gst_qt_mux_add_mp4_tag},
1304 {FOURCC_sosn, GST_TAG_SHOW_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1305 {FOURCC_tvsn, GST_TAG_SHOW_SEASON_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1306 {FOURCC_tves, GST_TAG_SHOW_EPISODE_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1307 {FOURCC__gen, GST_TAG_GENRE, NULL, gst_qt_mux_add_mp4_tag},
1308 {FOURCC__nam, GST_TAG_TITLE, NULL, gst_qt_mux_add_mp4_tag},
1309 {FOURCC_sonm, GST_TAG_TITLE_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1310 {FOURCC_perf, GST_TAG_PERFORMER, NULL, gst_qt_mux_add_mp4_tag},
1311 {FOURCC__grp, GST_TAG_GROUPING, NULL, gst_qt_mux_add_mp4_tag},
1312 {FOURCC__des, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_mp4_tag},
1313 {FOURCC__lyr, GST_TAG_LYRICS, NULL, gst_qt_mux_add_mp4_tag},
1314 {FOURCC__too, GST_TAG_ENCODER, NULL, gst_qt_mux_add_mp4_tag},
1315 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_mp4_tag},
1316 {FOURCC_keyw, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_mp4_tag},
1317 {FOURCC__day, GST_TAG_DATE, NULL, gst_qt_mux_add_mp4_date},
1318 {FOURCC_tmpo, GST_TAG_BEATS_PER_MINUTE, NULL, gst_qt_mux_add_mp4_tag},
1319 {FOURCC_trkn, GST_TAG_TRACK_NUMBER, GST_TAG_TRACK_COUNT,
1320 gst_qt_mux_add_mp4_tag},
1321 {FOURCC_disk, GST_TAG_ALBUM_VOLUME_NUMBER, GST_TAG_ALBUM_VOLUME_COUNT,
1322 gst_qt_mux_add_mp4_tag},
1323 {FOURCC_covr, GST_TAG_PREVIEW_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1324 {FOURCC_covr, GST_TAG_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1328 static const GstTagToFourcc tag_matches_3gp[] = {
1329 {FOURCC_titl, GST_TAG_TITLE, NULL, gst_qt_mux_add_3gp_str},
1330 {FOURCC_dscp, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_3gp_str},
1331 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_3gp_str},
1332 {FOURCC_perf, GST_TAG_ARTIST, NULL, gst_qt_mux_add_3gp_str},
1333 {FOURCC_auth, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_3gp_str},
1334 {FOURCC_gnre, GST_TAG_GENRE, NULL, gst_qt_mux_add_3gp_str},
1335 {FOURCC_kywd, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_3gp_keywords},
1336 {FOURCC_yrrc, GST_TAG_DATE, NULL, gst_qt_mux_add_3gp_date},
1337 {FOURCC_albm, GST_TAG_ALBUM, GST_TAG_TRACK_NUMBER, gst_qt_mux_add_3gp_str},
1338 {FOURCC_loci, GST_TAG_GEO_LOCATION_NAME, NULL, gst_qt_mux_add_3gp_location},
1339 {FOURCC_clsf, GST_TAG_3GP_CLASSIFICATION, NULL,
1340 gst_qt_mux_add_3gp_classification},
1344 /* qtdemux produces these for atoms it cannot parse */
1345 #define GST_QT_DEMUX_PRIVATE_TAG "private-qt-tag"
1348 gst_qt_mux_add_xmp_tags (GstQTMux * qtmux, const GstTagList * list)
1350 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1351 GstBuffer *xmp = NULL;
1353 /* adobe specs only have 'quicktime' and 'mp4',
1354 * but I guess we can extrapolate to gpp.
1355 * Keep mj2 out for now as we don't add any tags for it yet.
1356 * If you have further info about xmp on these formats, please share */
1357 if (qtmux_klass->format == GST_QT_MUX_FORMAT_MJ2)
1360 GST_DEBUG_OBJECT (qtmux, "Adding xmp tags");
1362 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT) {
1363 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1366 atom_udta_add_xmp_tags (&qtmux->moov->udta, xmp);
1369 /* for isom/mp4, it is a top level uuid atom */
1370 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1373 ainfo = build_uuid_xmp_atom (xmp);
1375 qtmux->extra_atoms = g_slist_prepend (qtmux->extra_atoms, ainfo);
1380 gst_buffer_unref (xmp);
1384 gst_qt_mux_add_metadata_tags (GstQTMux * qtmux, const GstTagList * list,
1387 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1390 const gchar *tag, *tag2;
1391 const GstTagToFourcc *tag_matches;
1393 switch (qtmux_klass->format) {
1394 case GST_QT_MUX_FORMAT_3GP:
1395 tag_matches = tag_matches_3gp;
1397 case GST_QT_MUX_FORMAT_MJ2:
1401 /* sort of iTunes style for mp4 and QT (?) */
1402 tag_matches = tag_matches_mp4;
1409 /* Clear existing tags so we don't add them over and over */
1410 atom_udta_clear_tags (udta);
1412 for (i = 0; tag_matches[i].fourcc; i++) {
1413 fourcc = tag_matches[i].fourcc;
1414 tag = tag_matches[i].gsttag;
1415 tag2 = tag_matches[i].gsttag2;
1417 g_assert (tag_matches[i].func);
1418 tag_matches[i].func (qtmux, list, udta, tag, tag2, fourcc);
1421 /* add unparsed blobs if present */
1422 if (gst_tag_exists (GST_QT_DEMUX_PRIVATE_TAG)) {
1425 num_tags = gst_tag_list_get_tag_size (list, GST_QT_DEMUX_PRIVATE_TAG);
1426 for (i = 0; i < num_tags; ++i) {
1427 GstSample *sample = NULL;
1429 const GstStructure *s;
1431 if (!gst_tag_list_get_sample_index (list, GST_QT_DEMUX_PRIVATE_TAG, i,
1434 buf = gst_sample_get_buffer (sample);
1436 if (buf && (s = gst_sample_get_info (sample))) {
1437 const gchar *style = NULL;
1440 gst_buffer_map (buf, &map, GST_MAP_READ);
1441 GST_DEBUG_OBJECT (qtmux,
1442 "Found private tag %d/%d; size %" G_GSIZE_FORMAT ", info %"
1443 GST_PTR_FORMAT, i, num_tags, map.size, s);
1444 if (s && (style = gst_structure_get_string (s, "style"))) {
1445 /* try to prevent some style tag ending up into another variant
1446 * (todo: make into a list if more cases) */
1447 if ((strcmp (style, "itunes") == 0 &&
1448 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) ||
1449 (strcmp (style, "iso") == 0 &&
1450 qtmux_klass->format == GST_QT_MUX_FORMAT_3GP)) {
1451 GST_DEBUG_OBJECT (qtmux, "Adding private tag");
1452 atom_udta_add_blob_tag (udta, map.data, map.size);
1455 gst_buffer_unmap (buf, &map);
1457 gst_sample_unref (sample);
1465 * Gets the tagsetter iface taglist and puts the known tags
1466 * into the output stream
1469 gst_qt_mux_setup_metadata (GstQTMux * qtmux)
1471 const GstTagList *tags = NULL;
1474 GST_OBJECT_LOCK (qtmux);
1475 if (qtmux->tags_changed) {
1476 tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (qtmux));
1477 qtmux->tags_changed = FALSE;
1479 GST_OBJECT_UNLOCK (qtmux);
1481 GST_LOG_OBJECT (qtmux, "tags: %" GST_PTR_FORMAT, tags);
1483 if (tags && !gst_tag_list_is_empty (tags)) {
1484 GstTagList *copy = gst_tag_list_copy (tags);
1486 GST_DEBUG_OBJECT (qtmux, "Removing bogus tags");
1487 gst_tag_list_remove_tag (copy, GST_TAG_VIDEO_CODEC);
1488 gst_tag_list_remove_tag (copy, GST_TAG_AUDIO_CODEC);
1489 gst_tag_list_remove_tag (copy, GST_TAG_CONTAINER_FORMAT);
1491 GST_DEBUG_OBJECT (qtmux, "Formatting tags");
1492 gst_qt_mux_add_metadata_tags (qtmux, copy, &qtmux->moov->udta);
1493 gst_qt_mux_add_xmp_tags (qtmux, copy);
1494 gst_tag_list_unref (copy);
1496 GST_DEBUG_OBJECT (qtmux, "No new tags received");
1499 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
1500 GstCollectData *cdata = (GstCollectData *) walk->data;
1501 GstQTPad *qpad = (GstQTPad *) cdata;
1502 GstPad *pad = qpad->collect.pad;
1504 if (qpad->tags_changed && qpad->tags) {
1505 GST_DEBUG_OBJECT (pad, "Adding tags");
1506 gst_tag_list_remove_tag (qpad->tags, GST_TAG_CONTAINER_FORMAT);
1507 gst_qt_mux_add_metadata_tags (qtmux, qpad->tags, &qpad->trak->udta);
1508 qpad->tags_changed = FALSE;
1509 GST_DEBUG_OBJECT (pad, "Tags added");
1511 GST_DEBUG_OBJECT (pad, "No new tags received");
1516 static inline GstBuffer *
1517 _gst_buffer_new_take_data (guint8 * data, guint size)
1521 buf = gst_buffer_new ();
1522 gst_buffer_append_memory (buf,
1523 gst_memory_new_wrapped (0, data, size, 0, size, data, g_free));
1528 static GstFlowReturn
1529 gst_qt_mux_send_buffer (GstQTMux * qtmux, GstBuffer * buf, guint64 * offset,
1535 g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
1537 size = gst_buffer_get_size (buf);
1538 GST_LOG_OBJECT (qtmux, "sending buffer size %" G_GSIZE_FORMAT, size);
1540 if (mind_fast && qtmux->fast_start_file) {
1544 GST_LOG_OBJECT (qtmux, "to temporary file");
1545 gst_buffer_map (buf, &map, GST_MAP_READ);
1546 ret = fwrite (map.data, sizeof (guint8), map.size, qtmux->fast_start_file);
1547 gst_buffer_unmap (buf, &map);
1548 gst_buffer_unref (buf);
1554 GST_LOG_OBJECT (qtmux, "downstream");
1555 res = gst_pad_push (qtmux->srcpad, buf);
1558 if (G_LIKELY (offset))
1566 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1567 ("Failed to write to temporary file"), GST_ERROR_SYSTEM);
1568 return GST_FLOW_ERROR;
1573 gst_qt_mux_seek_to_beginning (FILE * f)
1576 if (fseeko (f, (off_t) 0, SEEK_SET) != 0)
1578 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1579 if (lseek (fileno (f), (off_t) 0, SEEK_SET) == (off_t) - 1)
1582 if (fseek (f, (long) 0, SEEK_SET) != 0)
1588 static GstFlowReturn
1589 gst_qt_mux_send_buffered_data (GstQTMux * qtmux, guint64 * offset)
1591 GstFlowReturn ret = GST_FLOW_OK;
1592 GstBuffer *buf = NULL;
1594 if (fflush (qtmux->fast_start_file))
1597 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1600 /* hm, this could all take a really really long time,
1601 * but there may not be another way to get moov atom first
1602 * (somehow optimize copy?) */
1603 GST_DEBUG_OBJECT (qtmux, "Sending buffered data");
1604 while (ret == GST_FLOW_OK) {
1605 const int bufsize = 4096;
1609 buf = gst_buffer_new_and_alloc (bufsize);
1610 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1611 size = fread (map.data, sizeof (guint8), bufsize, qtmux->fast_start_file);
1613 gst_buffer_unmap (buf, &map);
1616 GST_LOG_OBJECT (qtmux, "Pushing buffered buffer of size %d", (gint) size);
1617 gst_buffer_unmap (buf, &map);
1618 if (size != bufsize)
1619 gst_buffer_set_size (buf, size);
1620 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
1624 gst_buffer_unref (buf);
1626 if (ftruncate (fileno (qtmux->fast_start_file), 0))
1628 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1636 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1637 ("Failed to flush temporary file"), GST_ERROR_SYSTEM);
1638 ret = GST_FLOW_ERROR;
1643 GST_ELEMENT_ERROR (qtmux, RESOURCE, SEEK,
1644 ("Failed to seek temporary file"), GST_ERROR_SYSTEM);
1645 ret = GST_FLOW_ERROR;
1650 /* clear descriptor so we don't remove temp file later on,
1651 * might be possible to recover */
1652 fclose (qtmux->fast_start_file);
1653 qtmux->fast_start_file = NULL;
1659 * Sends the initial mdat atom fields (size fields and fourcc type),
1660 * the subsequent buffers are considered part of it's data.
1661 * As we can't predict the amount of data that we are going to place in mdat
1662 * we need to record the position of the size field in the stream so we can
1663 * seek back to it later and update when the streams have finished.
1665 static GstFlowReturn
1666 gst_qt_mux_send_mdat_header (GstQTMux * qtmux, guint64 * off, guint64 size,
1667 gboolean extended, gboolean fsync_after)
1672 GST_DEBUG_OBJECT (qtmux, "Sending mdat's atom header, "
1673 "size %" G_GUINT64_FORMAT, size);
1675 /* if the qtmux state is EOS, really write the mdat, otherwise
1676 * allow size == 0 for a placeholder atom */
1677 if (qtmux->state == GST_QT_MUX_STATE_EOS || size > 0)
1681 gboolean large_file = (size > MDAT_LARGE_FILE_LIMIT);
1682 /* Always write 16-bytes, but put a free atom first
1683 * if the size is < 4GB. */
1684 buf = gst_buffer_new_and_alloc (16);
1685 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1688 /* Write extended mdat header and large_size field */
1689 GST_WRITE_UINT32_BE (map.data, 1);
1690 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1691 GST_WRITE_UINT64_BE (map.data + 8, size + 8);
1693 /* Write an empty free atom, then standard 32-bit mdat */
1694 GST_WRITE_UINT32_BE (map.data, 8);
1695 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_free);
1696 GST_WRITE_UINT32_BE (map.data + 8, size);
1697 GST_WRITE_UINT32_LE (map.data + 12, FOURCC_mdat);
1699 gst_buffer_unmap (buf, &map);
1701 buf = gst_buffer_new_and_alloc (8);
1702 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1704 /* Vanilla 32-bit mdat */
1705 GST_WRITE_UINT32_BE (map.data, size);
1706 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1707 gst_buffer_unmap (buf, &map);
1710 GST_LOG_OBJECT (qtmux, "Pushing mdat header");
1712 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1714 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1719 * We get the position of the mdat size field, seek back to it
1720 * and overwrite with the real value
1722 static GstFlowReturn
1723 gst_qt_mux_update_mdat_size (GstQTMux * qtmux, guint64 mdat_pos,
1724 guint64 mdat_size, guint64 * offset, gboolean fsync_after)
1728 /* We must have recorded the mdat position for this to work */
1729 g_assert (mdat_pos != 0);
1731 /* seek and rewrite the header */
1732 gst_segment_init (&segment, GST_FORMAT_BYTES);
1733 segment.start = mdat_pos;
1734 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1736 return gst_qt_mux_send_mdat_header (qtmux, offset, mdat_size, TRUE,
1740 static GstFlowReturn
1741 gst_qt_mux_send_ftyp (GstQTMux * qtmux, guint64 * off)
1744 guint64 size = 0, offset = 0;
1745 guint8 *data = NULL;
1747 GST_DEBUG_OBJECT (qtmux, "Sending ftyp atom");
1749 if (!atom_ftyp_copy_data (qtmux->ftyp, &data, &size, &offset))
1750 goto serialize_error;
1752 buf = _gst_buffer_new_take_data (data, offset);
1754 GST_LOG_OBJECT (qtmux, "Pushing ftyp");
1755 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1760 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1761 ("Failed to serialize ftyp"));
1762 return GST_FLOW_ERROR;
1767 gst_qt_mux_prepare_ftyp (GstQTMux * qtmux, AtomFTYP ** p_ftyp,
1768 GstBuffer ** p_prefix)
1770 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1771 guint32 major, version;
1773 GstBuffer *prefix = NULL;
1774 AtomFTYP *ftyp = NULL;
1776 GST_DEBUG_OBJECT (qtmux, "Preparing ftyp and possible prefix atom");
1778 /* init and send context and ftyp based on current property state */
1779 gst_qt_mux_map_format_to_header (qtmux_klass->format, &prefix, &major,
1780 &version, &comp, qtmux->moov, qtmux->longest_chunk,
1781 qtmux->fast_start_file != NULL);
1782 ftyp = atom_ftyp_new (qtmux->context, major, version, comp);
1789 gst_buffer_unref (prefix);
1794 static GstFlowReturn
1795 gst_qt_mux_prepare_and_send_ftyp (GstQTMux * qtmux)
1797 GstFlowReturn ret = GST_FLOW_OK;
1798 GstBuffer *prefix = NULL;
1800 GST_DEBUG_OBJECT (qtmux, "Preparing to send ftyp atom");
1802 /* init and send context and ftyp based on current property state */
1804 atom_ftyp_free (qtmux->ftyp);
1807 gst_qt_mux_prepare_ftyp (qtmux, &qtmux->ftyp, &prefix);
1809 ret = gst_qt_mux_send_buffer (qtmux, prefix, &qtmux->header_size, FALSE);
1810 if (ret != GST_FLOW_OK)
1813 return gst_qt_mux_send_ftyp (qtmux, &qtmux->header_size);
1817 gst_qt_mux_set_header_on_caps (GstQTMux * mux, GstBuffer * buf)
1819 GstStructure *structure;
1820 GValue array = { 0 };
1821 GValue value = { 0 };
1822 GstCaps *caps, *tcaps;
1824 tcaps = gst_pad_get_current_caps (mux->srcpad);
1825 caps = gst_caps_copy (tcaps);
1826 gst_caps_unref (tcaps);
1828 structure = gst_caps_get_structure (caps, 0);
1830 g_value_init (&array, GST_TYPE_ARRAY);
1832 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
1833 g_value_init (&value, GST_TYPE_BUFFER);
1834 gst_value_take_buffer (&value, gst_buffer_ref (buf));
1835 gst_value_array_append_value (&array, &value);
1836 g_value_unset (&value);
1838 gst_structure_set_value (structure, "streamheader", &array);
1839 g_value_unset (&array);
1840 gst_pad_set_caps (mux->srcpad, caps);
1841 gst_caps_unref (caps);
1845 * Write out a free space atom. The offset is adjusted by the full
1846 * size, but a smaller buffer is sent
1848 static GstFlowReturn
1849 gst_qt_mux_send_free_atom (GstQTMux * qtmux, guint64 * off, guint32 size,
1850 gboolean fsync_after)
1854 guint8 *data = NULL;
1855 guint64 offset = 0, bsize = 0;
1858 GST_DEBUG_OBJECT (qtmux, "Sending free atom header of size %u", size);
1860 /* We can't make a free space atom smaller than the header */
1864 node_header = g_malloc0 (sizeof (Atom));
1865 node_header->type = FOURCC_free;
1866 node_header->size = size;
1869 if (atom_copy_data (node_header, &data, &bsize, &offset) == 0)
1870 goto serialize_error;
1872 buf = _gst_buffer_new_take_data (data, offset);
1873 g_free (node_header);
1876 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1878 GST_LOG_OBJECT (qtmux, "Pushing free atom");
1879 ret = gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1886 /* Make sure downstream position ends up at the end of this free box */
1887 gst_segment_init (&segment, GST_FORMAT_BYTES);
1888 segment.start = *off;
1889 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1897 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1898 ("Not enough free reserved space"));
1899 return GST_FLOW_ERROR;
1903 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1904 ("Failed to serialize mdat"));
1905 g_free (node_header);
1906 return GST_FLOW_ERROR;
1911 gst_qt_mux_configure_moov (GstQTMux * qtmux)
1913 gboolean fragmented = FALSE;
1916 GST_OBJECT_LOCK (qtmux);
1917 timescale = qtmux->timescale;
1918 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED ||
1919 qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE)
1921 GST_OBJECT_UNLOCK (qtmux);
1923 /* inform lower layers of our property wishes, and determine duration.
1924 * Let moov take care of this using its list of traks;
1925 * so that released pads are also included */
1926 GST_DEBUG_OBJECT (qtmux, "Updating timescale to %" G_GUINT32_FORMAT,
1928 atom_moov_update_timescale (qtmux->moov, timescale);
1929 atom_moov_set_fragmented (qtmux->moov, fragmented);
1931 atom_moov_update_duration (qtmux->moov);
1934 static GstFlowReturn
1935 gst_qt_mux_send_moov (GstQTMux * qtmux, guint64 * _offset,
1936 guint64 padded_moov_size, gboolean mind_fast, gboolean fsync_after)
1938 guint64 offset = 0, size = 0;
1941 GstFlowReturn ret = GST_FLOW_OK;
1943 guint64 current_time = atoms_get_current_qt_time ();
1945 /* update modification times */
1946 qtmux->moov->mvhd.time_info.modification_time = current_time;
1947 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
1948 GstCollectData *cdata = (GstCollectData *) walk->data;
1949 GstQTPad *qtpad = (GstQTPad *) cdata;
1951 qtpad->trak->mdia.mdhd.time_info.modification_time = current_time;
1952 qtpad->trak->tkhd.modification_time = current_time;
1955 /* serialize moov */
1958 GST_LOG_OBJECT (qtmux, "Copying movie header into buffer");
1959 if (!atom_moov_copy_data (qtmux->moov, &data, &size, &offset))
1960 goto serialize_error;
1961 qtmux->last_moov_size = offset;
1963 /* Check we have enough reserved space for this and a Free atom */
1964 if (padded_moov_size > 0 && offset + 8 > padded_moov_size)
1965 goto too_small_reserved;
1966 buf = _gst_buffer_new_take_data (data, offset);
1967 GST_DEBUG_OBJECT (qtmux, "Pushing moov atoms");
1969 /* If at EOS, this is the final moov, put in the streamheader
1970 * (apparently used by a flumotion util) */
1971 if (qtmux->state == GST_QT_MUX_STATE_EOS)
1972 gst_qt_mux_set_header_on_caps (qtmux, buf);
1975 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1976 ret = gst_qt_mux_send_buffer (qtmux, buf, _offset, mind_fast);
1978 /* Write out a free atom if needed */
1979 if (ret == GST_FLOW_OK && offset < padded_moov_size) {
1980 GST_LOG_OBJECT (qtmux, "Writing out free atom of size %u",
1981 (guint32) (padded_moov_size - offset));
1983 gst_qt_mux_send_free_atom (qtmux, _offset, padded_moov_size - offset,
1990 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
1991 ("Not enough free reserved header space"),
1992 ("Needed %" G_GUINT64_FORMAT " bytes, reserved %" G_GUINT64_FORMAT,
1993 offset, padded_moov_size));
1994 return GST_FLOW_ERROR;
1999 return GST_FLOW_ERROR;
2003 /* either calculates size of extra atoms or pushes them */
2004 static GstFlowReturn
2005 gst_qt_mux_send_extra_atoms (GstQTMux * qtmux, gboolean send, guint64 * offset,
2009 guint64 loffset = 0, size = 0;
2011 GstFlowReturn ret = GST_FLOW_OK;
2013 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
2014 AtomInfo *ainfo = (AtomInfo *) walk->data;
2018 if (!ainfo->copy_data_func (ainfo->atom,
2019 send ? &data : NULL, &size, &loffset))
2020 goto serialize_error;
2025 GST_DEBUG_OBJECT (qtmux,
2026 "Pushing extra top-level atom %" GST_FOURCC_FORMAT,
2027 GST_FOURCC_ARGS (ainfo->atom->type));
2028 buf = _gst_buffer_new_take_data (data, loffset);
2029 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
2030 if (ret != GST_FLOW_OK)
2043 return GST_FLOW_ERROR;
2048 gst_qt_mux_downstream_is_seekable (GstQTMux * qtmux)
2050 gboolean seekable = FALSE;
2051 GstQuery *query = gst_query_new_seeking (GST_FORMAT_BYTES);
2053 if (gst_pad_peer_query (qtmux->srcpad, query)) {
2054 gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
2055 GST_INFO_OBJECT (qtmux, "downstream is %sseekable", seekable ? "" : "not ");
2057 /* have to assume seeking is not supported if query not handled downstream */
2058 GST_WARNING_OBJECT (qtmux, "downstream did not handle seeking query");
2061 gst_query_unref (query);
2067 gst_qt_mux_prepare_moov_recovery (GstQTMux * qtmux)
2070 gboolean fail = FALSE;
2071 AtomFTYP *ftyp = NULL;
2072 GstBuffer *prefix = NULL;
2074 GST_DEBUG_OBJECT (qtmux, "Opening moov recovery file: %s",
2075 qtmux->moov_recov_file_path);
2077 qtmux->moov_recov_file = g_fopen (qtmux->moov_recov_file_path, "wb+");
2078 if (qtmux->moov_recov_file == NULL) {
2079 GST_WARNING_OBJECT (qtmux, "Failed to open moov recovery file in %s",
2080 qtmux->moov_recov_file_path);
2084 gst_qt_mux_prepare_ftyp (qtmux, &ftyp, &prefix);
2086 if (!atoms_recov_write_headers (qtmux->moov_recov_file, ftyp, prefix,
2087 qtmux->moov, qtmux->timescale, g_slist_length (qtmux->sinkpads))) {
2088 GST_WARNING_OBJECT (qtmux, "Failed to write moov recovery file " "headers");
2092 atom_ftyp_free (ftyp);
2094 gst_buffer_unref (prefix);
2096 for (walk = qtmux->sinkpads; walk && !fail; walk = g_slist_next (walk)) {
2097 GstCollectData *cdata = (GstCollectData *) walk->data;
2098 GstQTPad *qpad = (GstQTPad *) cdata;
2099 /* write info for each stream */
2100 fail = atoms_recov_write_trak_info (qtmux->moov_recov_file, qpad->trak);
2102 GST_WARNING_OBJECT (qtmux, "Failed to write trak info to recovery "
2112 fclose (qtmux->moov_recov_file);
2113 qtmux->moov_recov_file = NULL;
2116 static GstFlowReturn
2117 gst_qt_mux_start_file (GstQTMux * qtmux)
2119 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
2120 GstFlowReturn ret = GST_FLOW_OK;
2124 GstClockTime reserved_max_duration;
2125 guint reserved_bytes_per_sec_per_trak;
2127 GST_DEBUG_OBJECT (qtmux, "starting file");
2129 GST_OBJECT_LOCK (qtmux);
2130 reserved_max_duration = qtmux->reserved_max_duration;
2131 reserved_bytes_per_sec_per_trak = qtmux->reserved_bytes_per_sec_per_trak;
2132 GST_OBJECT_UNLOCK (qtmux);
2134 /* stream-start (FIXME: create id based on input ids) */
2135 g_snprintf (s_id, sizeof (s_id), "qtmux-%08x", g_random_int ());
2136 gst_pad_push_event (qtmux->srcpad, gst_event_new_stream_start (s_id));
2138 caps = gst_caps_copy (gst_pad_get_pad_template_caps (qtmux->srcpad));
2139 /* qtmux has structure with and without variant, remove all but the first */
2140 while (gst_caps_get_size (caps) > 1)
2141 gst_caps_remove_structure (caps, 1);
2142 gst_pad_set_caps (qtmux->srcpad, caps);
2143 gst_caps_unref (caps);
2145 /* Default is 'normal' mode */
2146 qtmux->mux_mode = GST_QT_MUX_MODE_MOOV_AT_END;
2148 /* Require a sensible fragment duration when muxing
2149 * using the ISML muxer */
2150 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML &&
2151 qtmux->fragment_duration == 0)
2154 if (qtmux->fragment_duration > 0) {
2155 if (qtmux->streamable)
2156 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE;
2158 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED;
2159 } else if (qtmux->fast_start) {
2160 qtmux->mux_mode = GST_QT_MUX_MODE_FAST_START;
2161 } else if (reserved_max_duration != GST_CLOCK_TIME_NONE) {
2162 qtmux->mux_mode = GST_QT_MUX_MODE_ROBUST_RECORDING;
2165 switch (qtmux->mux_mode) {
2166 case GST_QT_MUX_MODE_MOOV_AT_END:
2167 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2168 /* We have to be able to seek to rewrite the mdat header, or any
2169 * moov atom we write will not be visible in the file, because an
2170 * MDAT with 0 as the size covers the rest of the file. A file
2171 * with no moov is not playable, so error out now. */
2172 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2173 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2174 ("Downstream is not seekable - will not be able to create a playable file"),
2176 return GST_FLOW_ERROR;
2179 case GST_QT_MUX_MODE_FAST_START:
2180 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2181 break; /* Don't need seekability, ignore */
2182 case GST_QT_MUX_MODE_FRAGMENTED:
2183 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2184 GST_WARNING_OBJECT (qtmux, "downstream is not seekable, but "
2185 "streamable=false. Will ignore that and create streamable output "
2187 qtmux->streamable = TRUE;
2188 g_object_notify (G_OBJECT (qtmux), "streamable");
2193 /* let downstream know we think in BYTES and expect to do seeking later on */
2194 gst_segment_init (&segment, GST_FORMAT_BYTES);
2195 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2197 GST_OBJECT_LOCK (qtmux);
2199 if (qtmux->timescale == 0) {
2200 guint32 suggested_timescale = 0;
2203 /* Calculate a reasonable timescale for the moov:
2204 * If there is video, it is the biggest video track timescale or an even
2205 * multiple of it if it's smaller than 1800.
2206 * Otherwise it is 1800 */
2207 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
2208 GstCollectData *cdata = (GstCollectData *) walk->data;
2209 GstQTPad *qpad = (GstQTPad *) cdata;
2215 if (!qpad->trak->mdia.minf.vmhd)
2218 suggested_timescale =
2219 MAX (qpad->trak->mdia.mdhd.time_info.timescale, suggested_timescale);
2222 if (suggested_timescale == 0)
2223 suggested_timescale = 1800;
2225 while (suggested_timescale < 1800)
2226 suggested_timescale *= 2;
2228 qtmux->timescale = suggested_timescale;
2231 /* initialize our moov recovery file */
2232 if (qtmux->moov_recov_file_path) {
2233 gst_qt_mux_prepare_moov_recovery (qtmux);
2236 /* Make sure the first time we update the moov, we'll
2237 * include any tagsetter tags */
2238 qtmux->tags_changed = TRUE;
2240 GST_OBJECT_UNLOCK (qtmux);
2243 * send mdat header if already needed, and mark position for later update.
2244 * We don't send ftyp now if we are on fast start mode, because we can
2245 * better fine tune using the information we gather to create the whole moov
2248 switch (qtmux->mux_mode) {
2249 case GST_QT_MUX_MODE_MOOV_AT_END:
2250 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2251 if (ret != GST_FLOW_OK)
2254 /* Store this as the mdat offset for later updating
2255 * when we write the moov */
2256 qtmux->mdat_pos = qtmux->header_size;
2257 /* extended atom in case we go over 4GB while writing and need
2258 * the full 64-bit atom */
2260 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2263 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2265 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2266 if (ret != GST_FLOW_OK)
2269 /* Pad ftyp out to an 8-byte boundary before starting the moov
2270 * ping pong region. It should be well less than 1 disk sector,
2271 * unless there's a bajillion compatible types listed,
2272 * but let's be sure the free atom doesn't cross a sector
2273 * boundary anyway */
2274 if (qtmux->header_size % 8) {
2275 /* Extra 8 bytes for the padding free atom header */
2276 guint padding = (guint) (16 - (qtmux->header_size % 8));
2277 GST_LOG_OBJECT (qtmux, "Rounding ftyp by %u bytes", padding);
2279 gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, padding,
2281 if (ret != GST_FLOW_OK)
2285 /* Store this as the moov offset for later updating.
2286 * We record mdat position below */
2287 qtmux->moov_pos = qtmux->header_size;
2289 /* Set up the initial 'ping' state of the ping-pong buffers */
2290 qtmux->reserved_moov_first_active = TRUE;
2292 gst_qt_mux_configure_moov (qtmux);
2293 gst_qt_mux_setup_metadata (qtmux);
2294 /* Empty free atom to begin, starting on an 8-byte boundary */
2295 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, 8, FALSE);
2296 if (ret != GST_FLOW_OK)
2298 /* Moov header, not padded yet */
2299 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2300 if (ret != GST_FLOW_OK)
2302 /* The moov we just sent contains the 'base' size of the moov, before
2303 * we put in any time-dependent per-trak data. Use that to make
2304 * a good estimate of how much extra to reserve */
2305 /* Calculate how much space to reserve for our MOOV atom.
2306 * We actually reserve twice that, for ping-pong buffers */
2307 qtmux->base_moov_size = qtmux->last_moov_size;
2308 GST_LOG_OBJECT (qtmux, "Base moov size is %u before any indexes",
2309 qtmux->base_moov_size);
2310 qtmux->reserved_moov_size = qtmux->base_moov_size +
2311 gst_util_uint64_scale (reserved_max_duration,
2312 reserved_bytes_per_sec_per_trak *
2313 atom_moov_get_trak_count (qtmux->moov), GST_SECOND);
2315 /* Need space for at least 4 atom headers. More really, but
2316 * this as an absolute minimum */
2317 if (qtmux->reserved_moov_size < 4 * 8)
2318 goto reserved_moov_too_small;
2320 GST_DEBUG_OBJECT (qtmux, "reserving header area of size %u",
2321 2 * qtmux->reserved_moov_size + 16);
2323 GST_OBJECT_LOCK (qtmux);
2324 qtmux->reserved_duration_remaining =
2325 gst_util_uint64_scale (qtmux->reserved_moov_size -
2326 qtmux->base_moov_size, GST_SECOND,
2327 reserved_bytes_per_sec_per_trak *
2328 atom_moov_get_trak_count (qtmux->moov));
2329 GST_OBJECT_UNLOCK (qtmux);
2331 /* Now that we know how much reserved space is targetted,
2332 * output a free atom to fill the extra reserved */
2333 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2334 qtmux->reserved_moov_size - qtmux->base_moov_size, FALSE);
2335 if (ret != GST_FLOW_OK)
2338 /* Then a free atom containing 'pong' buffer, with an
2339 * extra 8 bytes to account for the free atom header itself */
2340 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2341 qtmux->reserved_moov_size + 8, FALSE);
2342 if (ret != GST_FLOW_OK)
2345 /* extra atoms go after the free/moov(s), before the mdat */
2347 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2348 if (ret != GST_FLOW_OK)
2351 qtmux->mdat_pos = qtmux->header_size;
2352 /* extended atom in case we go over 4GB while writing and need
2353 * the full 64-bit atom */
2355 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2358 case GST_QT_MUX_MODE_FAST_START:
2359 GST_OBJECT_LOCK (qtmux);
2360 qtmux->fast_start_file = g_fopen (qtmux->fast_start_file_path, "wb+");
2361 if (!qtmux->fast_start_file)
2363 GST_OBJECT_UNLOCK (qtmux);
2364 /* send a dummy buffer for preroll */
2365 ret = gst_qt_mux_send_buffer (qtmux, gst_buffer_new (), NULL, FALSE);
2367 case GST_QT_MUX_MODE_FRAGMENTED:
2368 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2369 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2370 if (ret != GST_FLOW_OK)
2372 /* store the moov pos so we can update the duration later
2373 * in non-streamable mode */
2374 qtmux->moov_pos = qtmux->header_size;
2376 GST_DEBUG_OBJECT (qtmux, "fragment duration %d ms, writing headers",
2377 qtmux->fragment_duration);
2378 /* also used as snapshot marker to indicate fragmented file */
2379 qtmux->fragment_sequence = 1;
2380 /* prepare moov and/or tags */
2381 gst_qt_mux_configure_moov (qtmux);
2382 gst_qt_mux_setup_metadata (qtmux);
2383 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2384 if (ret != GST_FLOW_OK)
2388 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2389 if (ret != GST_FLOW_OK)
2391 /* prepare index if not streamable */
2392 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED)
2393 qtmux->mfra = atom_mfra_new (qtmux->context);
2401 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2402 ("Cannot create an ISML file with 0 fragment duration"), (NULL));
2403 return GST_FLOW_ERROR;
2405 reserved_moov_too_small:
2407 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2408 ("Not enough reserved space for creating headers"), (NULL));
2409 return GST_FLOW_ERROR;
2413 GST_ELEMENT_ERROR (qtmux, RESOURCE, OPEN_READ_WRITE,
2414 (("Could not open temporary file \"%s\""),
2415 qtmux->fast_start_file_path), GST_ERROR_SYSTEM);
2416 GST_OBJECT_UNLOCK (qtmux);
2417 return GST_FLOW_ERROR;
2421 static GstFlowReturn
2422 gst_qt_mux_send_last_buffers (GstQTMux * qtmux)
2424 GstFlowReturn ret = GST_FLOW_OK;
2427 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2428 GstCollectData *cdata = (GstCollectData *) walk->data;
2429 GstQTPad *qtpad = (GstQTPad *) cdata;
2431 /* avoid add_buffer complaining if not negotiated
2432 * in which case no buffers either, so skipping */
2433 if (!qtpad->fourcc) {
2434 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2435 GST_PAD_NAME (qtpad->collect.pad));
2439 /* send last buffer; also flushes possibly queued buffers/ts */
2440 GST_DEBUG_OBJECT (qtmux, "Sending the last buffer for pad %s",
2441 GST_PAD_NAME (qtpad->collect.pad));
2442 ret = gst_qt_mux_add_buffer (qtmux, qtpad, NULL);
2443 if (ret != GST_FLOW_OK) {
2444 GST_WARNING_OBJECT (qtmux, "Failed to send last buffer for %s, "
2445 "flow return: %s", GST_PAD_NAME (qtpad->collect.pad),
2446 gst_flow_get_name (ret));
2454 gst_qt_mux_update_global_statistics (GstQTMux * qtmux)
2458 /* for setting some subtitles fields */
2459 guint max_width = 0;
2460 guint max_height = 0;
2462 qtmux->first_ts = qtmux->last_dts = GST_CLOCK_TIME_NONE;
2464 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2465 GstCollectData *cdata = (GstCollectData *) walk->data;
2466 GstQTPad *qtpad = (GstQTPad *) cdata;
2468 if (!qtpad->fourcc) {
2469 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2470 GST_PAD_NAME (qtpad->collect.pad));
2474 /* having flushed above, can check for buffers now */
2475 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2476 /* determine max stream duration */
2477 if (!GST_CLOCK_TIME_IS_VALID (qtmux->last_dts)
2478 || qtpad->last_dts > qtmux->last_dts) {
2479 qtmux->last_dts = qtpad->last_dts;
2481 if (!GST_CLOCK_TIME_IS_VALID (qtmux->first_ts)
2482 || qtpad->first_ts < qtmux->first_ts) {
2483 qtmux->first_ts = qtpad->first_ts;
2487 /* subtitles need to know the video width/height,
2488 * it is stored shifted 16 bits to the left according to the
2490 max_width = MAX (max_width, (qtpad->trak->tkhd.width >> 16));
2491 max_height = MAX (max_height, (qtpad->trak->tkhd.height >> 16));
2493 /* update average bitrate of streams if needed */
2495 guint32 avgbitrate = 0;
2496 guint32 maxbitrate = qtpad->max_bitrate;
2498 if (qtpad->avg_bitrate)
2499 avgbitrate = qtpad->avg_bitrate;
2500 else if (qtpad->total_duration > 0)
2501 avgbitrate = (guint32) gst_util_uint64_scale_round (qtpad->total_bytes,
2502 8 * GST_SECOND, qtpad->total_duration);
2504 atom_trak_update_bitrates (qtpad->trak, avgbitrate, maxbitrate);
2508 /* need to update values on subtitle traks now that we know the
2509 * max width and height */
2510 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2511 GstCollectData *cdata = (GstCollectData *) walk->data;
2512 GstQTPad *qtpad = (GstQTPad *) cdata;
2514 if (!qtpad->fourcc) {
2515 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2516 GST_PAD_NAME (qtpad->collect.pad));
2520 if (qtpad->fourcc == FOURCC_tx3g) {
2521 atom_trak_tx3g_update_dimension (qtpad->trak, max_width, max_height);
2526 /* Called after gst_qt_mux_update_global_statistics() updates the
2527 * first_ts tracking, to create/set edit lists for delayed streams */
2529 gst_qt_mux_update_edit_lists (GstQTMux * qtmux)
2533 GST_DEBUG_OBJECT (qtmux, "Media first ts selected: %" GST_TIME_FORMAT,
2534 GST_TIME_ARGS (qtmux->first_ts));
2535 /* add/update EDTSs for late streams. configure_moov will have
2536 * set the trak durations above by summing the sample tables,
2537 * here we extend that if needing to insert an empty segment */
2538 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2539 GstCollectData *cdata = (GstCollectData *) walk->data;
2540 GstQTPad *qtpad = (GstQTPad *) cdata;
2542 atom_trak_edts_clear (qtpad->trak);
2544 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2545 guint32 lateness = 0;
2546 guint32 duration = qtpad->trak->tkhd.duration;
2549 has_gap = (qtpad->first_ts > (qtmux->first_ts + qtpad->dts_adjustment));
2554 diff = qtpad->first_ts - (qtmux->first_ts + qtpad->dts_adjustment);
2555 lateness = gst_util_uint64_scale_round (diff,
2556 qtmux->timescale, GST_SECOND);
2559 GST_DEBUG_OBJECT (qtmux,
2560 "Pad %s is a late stream by %" GST_TIME_FORMAT,
2561 GST_PAD_NAME (qtpad->collect.pad), GST_TIME_ARGS (lateness));
2563 atom_trak_set_elst_entry (qtpad->trak, 0, lateness, (guint32) - 1,
2564 (guint32) (1 * 65536.0));
2568 /* Always write an edit list for the whole track. In general this is not
2569 * necessary except for the case of having a gap or DTS adjustment but
2570 * it allows to give the whole track's duration in the usually more
2571 * accurate media timescale
2574 GstClockTime ctts = 0;
2575 guint32 media_start;
2577 if (qtpad->first_ts > qtpad->first_dts)
2578 ctts = qtpad->first_ts - qtpad->first_dts;
2580 media_start = gst_util_uint64_scale_round (ctts,
2581 atom_trak_get_timescale (qtpad->trak), GST_SECOND);
2583 /* atom_trak_set_elst_entry() has a quirk - if the edit list
2584 * is empty because there's no gap added above, this call
2585 * will not replace index 1, it will create the entry at index 0.
2586 * Luckily, that's exactly what we want here */
2587 atom_trak_set_elst_entry (qtpad->trak, 1, duration, media_start,
2588 (guint32) (1 * 65536.0));
2591 /* need to add the empty time to the trak duration */
2592 duration += lateness;
2593 qtpad->trak->tkhd.duration = duration;
2594 if (qtpad->tc_trak) {
2595 qtpad->tc_trak->tkhd.duration = duration;
2596 qtpad->tc_trak->mdia.mdhd.time_info.duration = duration;
2599 /* And possibly grow the moov duration */
2600 if (duration > qtmux->moov->mvhd.time_info.duration) {
2601 qtmux->moov->mvhd.time_info.duration = duration;
2602 qtmux->moov->mvex.mehd.fragment_duration = duration;
2608 static GstFlowReturn
2609 gst_qt_mux_update_timecode (GstQTMux * qtmux, GstQTPad * qtpad)
2614 guint64 offset = qtpad->tc_pos;
2616 g_assert (qtpad->tc_pos != -1);
2618 gst_segment_init (&segment, GST_FORMAT_BYTES);
2619 segment.start = offset;
2620 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2622 buf = gst_buffer_new_and_alloc (4);
2623 gst_buffer_map (buf, &map, GST_MAP_WRITE);
2625 GST_WRITE_UINT32_BE (map.data,
2626 gst_video_time_code_frames_since_daily_jam (qtpad->first_tc));
2627 gst_buffer_unmap (buf, &map);
2629 /* Reset this value, so the timecode won't be re-rewritten */
2632 return gst_qt_mux_send_buffer (qtmux, buf, &offset, FALSE);
2635 static GstFlowReturn
2636 gst_qt_mux_stop_file (GstQTMux * qtmux)
2638 gboolean ret = GST_FLOW_OK;
2639 guint64 offset = 0, size = 0;
2640 gboolean large_file;
2643 GST_DEBUG_OBJECT (qtmux, "Updating remaining values and sending last data");
2645 /* pushing last buffers for each pad */
2646 if ((ret = gst_qt_mux_send_last_buffers (qtmux)) != GST_FLOW_OK)
2649 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) {
2650 /* Streamable mode; no need to write duration or MFRA */
2651 GST_DEBUG_OBJECT (qtmux, "streamable file; nothing to stop");
2655 gst_qt_mux_update_global_statistics (qtmux);
2656 for (walk = qtmux->collect->data; walk; walk = walk->next) {
2657 GstQTPad *qtpad = (GstQTPad *) walk->data;
2659 if (qtpad->tc_pos != -1) {
2660 /* File is being stopped and timecode hasn't been updated. Update it now
2661 * with whatever we have */
2662 ret = gst_qt_mux_update_timecode (qtmux, qtpad);
2663 if (ret != GST_FLOW_OK)
2668 switch (qtmux->mux_mode) {
2669 case GST_QT_MUX_MODE_FRAGMENTED:{
2671 guint8 *data = NULL;
2675 GST_DEBUG_OBJECT (qtmux, "adding mfra");
2676 if (!atom_mfra_copy_data (qtmux->mfra, &data, &size, &offset))
2677 goto serialize_error;
2678 buf = _gst_buffer_new_take_data (data, offset);
2679 ret = gst_qt_mux_send_buffer (qtmux, buf, NULL, FALSE);
2680 if (ret != GST_FLOW_OK)
2683 /* only mvex duration is updated,
2684 * mvhd should be consistent with empty moov
2685 * (but TODO maybe some clients do not handle that well ?) */
2686 qtmux->moov->mvex.mehd.fragment_duration =
2687 gst_util_uint64_scale (qtmux->last_dts, qtmux->timescale, GST_SECOND);
2688 GST_DEBUG_OBJECT (qtmux, "rewriting moov with mvex duration %"
2689 GST_TIME_FORMAT, GST_TIME_ARGS (qtmux->last_dts));
2690 /* seek and rewrite the header */
2691 gst_segment_init (&segment, GST_FORMAT_BYTES);
2692 segment.start = qtmux->moov_pos;
2693 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2694 /* no need to seek back */
2695 return gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2697 case GST_QT_MUX_MODE_ROBUST_RECORDING:{
2698 ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
2699 if (G_UNLIKELY (ret != GST_FLOW_OK))
2701 /* Finalise by writing the final size into the mdat. Up until now
2702 * it's been 0, which means 'rest of the file'
2703 * No need to seek back after this, we won't write any more */
2704 return gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2705 qtmux->mdat_size, NULL, TRUE);
2711 /* Moov-at-end or fast-start mode from here down */
2712 gst_qt_mux_configure_moov (qtmux);
2714 gst_qt_mux_update_edit_lists (qtmux);
2716 /* tags into file metadata */
2717 gst_qt_mux_setup_metadata (qtmux);
2719 large_file = (qtmux->mdat_size > MDAT_LARGE_FILE_LIMIT);
2721 switch (qtmux->mux_mode) {
2722 case GST_QT_MUX_MODE_FAST_START:{
2723 /* if faststart, update the offset of the atoms in the movie with the offset
2724 * that the movie headers before mdat will cause.
2725 * Also, send the ftyp */
2728 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2729 if (ret != GST_FLOW_OK) {
2732 /* copy into NULL to obtain size */
2733 if (!atom_moov_copy_data (qtmux->moov, NULL, &size, &offset))
2734 goto serialize_error;
2735 GST_DEBUG_OBJECT (qtmux, "calculated moov atom size %" G_GUINT64_FORMAT,
2737 offset += qtmux->header_size + (large_file ? 16 : 8);
2739 /* sum up with the extra atoms size */
2740 ret = gst_qt_mux_send_extra_atoms (qtmux, FALSE, &offset, FALSE);
2741 if (ret != GST_FLOW_OK)
2746 offset = qtmux->header_size;
2750 /* Now that we know the size of moov + extra atoms, we can adjust
2751 * the chunk offsets stored into the moov */
2752 atom_moov_chunks_set_offset (qtmux->moov, offset);
2754 /* write out moov and extra atoms */
2755 /* note: as of this point, we no longer care about tracking written data size,
2756 * since there is no more use for it anyway */
2757 ret = gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2758 if (ret != GST_FLOW_OK)
2762 ret = gst_qt_mux_send_extra_atoms (qtmux, TRUE, NULL, FALSE);
2763 if (ret != GST_FLOW_OK)
2766 switch (qtmux->mux_mode) {
2767 case GST_QT_MUX_MODE_MOOV_AT_END:
2769 /* mdat needs update iff not using faststart */
2770 GST_DEBUG_OBJECT (qtmux, "updating mdat size");
2771 ret = gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2772 qtmux->mdat_size, NULL, FALSE);
2773 /* note; no seeking back to the end of file is done,
2774 * since we no longer write anything anyway */
2777 case GST_QT_MUX_MODE_FAST_START:
2779 /* send mdat atom and move buffered data into it */
2780 /* mdat_size = accumulated (buffered data) */
2781 ret = gst_qt_mux_send_mdat_header (qtmux, NULL, qtmux->mdat_size,
2783 if (ret != GST_FLOW_OK)
2785 ret = gst_qt_mux_send_buffered_data (qtmux, NULL);
2786 if (ret != GST_FLOW_OK)
2791 g_assert_not_reached ();
2799 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
2800 ("Failed to serialize moov"));
2801 return GST_FLOW_ERROR;
2805 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Failed to send ftyp"));
2806 return GST_FLOW_ERROR;
2810 static GstFlowReturn
2811 gst_qt_mux_pad_fragment_add_buffer (GstQTMux * qtmux, GstQTPad * pad,
2812 GstBuffer * buf, gboolean force, guint32 nsamples, gint64 dts,
2813 guint32 delta, guint32 size, gboolean sync, gint64 pts_offset)
2815 GstFlowReturn ret = GST_FLOW_OK;
2817 /* setup if needed */
2818 if (G_UNLIKELY (!pad->traf || force))
2822 /* flush pad fragment if threshold reached,
2823 * or at new keyframe if we should be minding those in the first place */
2824 if (G_UNLIKELY (force || (sync && pad->sync) ||
2825 pad->fragment_duration < (gint64) delta)) {
2827 guint64 size = 0, offset = 0;
2828 guint8 *data = NULL;
2830 guint i, total_size;
2832 /* now we know where moof ends up, update offset in tfra */
2834 atom_tfra_update_offset (pad->tfra, qtmux->header_size);
2836 moof = atom_moof_new (qtmux->context, qtmux->fragment_sequence);
2837 /* takes ownership */
2838 atom_moof_add_traf (moof, pad->traf);
2840 atom_moof_copy_data (moof, &data, &size, &offset);
2841 buffer = _gst_buffer_new_take_data (data, offset);
2842 GST_LOG_OBJECT (qtmux, "writing moof size %" G_GSIZE_FORMAT,
2843 gst_buffer_get_size (buffer));
2844 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->header_size, FALSE);
2846 /* and actual data */
2848 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2850 gst_buffer_get_size (atom_array_index (&pad->fragment_buffers, i));
2853 GST_LOG_OBJECT (qtmux, "writing %d buffers, total_size %d",
2854 atom_array_get_len (&pad->fragment_buffers), total_size);
2855 if (ret == GST_FLOW_OK)
2856 ret = gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, total_size,
2858 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2859 if (G_LIKELY (ret == GST_FLOW_OK))
2860 ret = gst_qt_mux_send_buffer (qtmux,
2861 atom_array_index (&pad->fragment_buffers, i), &qtmux->header_size,
2864 gst_buffer_unref (atom_array_index (&pad->fragment_buffers, i));
2867 atom_array_clear (&pad->fragment_buffers);
2868 atom_moof_free (moof);
2869 qtmux->fragment_sequence++;
2874 if (G_UNLIKELY (!pad->traf)) {
2875 GST_LOG_OBJECT (qtmux, "setting up new fragment");
2876 pad->traf = atom_traf_new (qtmux->context, atom_trak_get_id (pad->trak));
2877 atom_array_init (&pad->fragment_buffers, 512);
2878 pad->fragment_duration = gst_util_uint64_scale (qtmux->fragment_duration,
2879 atom_trak_get_timescale (pad->trak), 1000);
2881 if (G_UNLIKELY (qtmux->mfra && !pad->tfra)) {
2882 pad->tfra = atom_tfra_new (qtmux->context, atom_trak_get_id (pad->trak));
2883 atom_mfra_add_tfra (qtmux->mfra, pad->tfra);
2885 atom_traf_set_base_decode_time (pad->traf, dts);
2888 /* add buffer and metadata */
2889 atom_traf_add_samples (pad->traf, delta, size, sync, pts_offset,
2891 atom_array_append (&pad->fragment_buffers, buf, 256);
2892 pad->fragment_duration -= delta;
2895 guint32 sn = atom_traf_get_sample_num (pad->traf);
2897 if ((sync && pad->sync) || (sn == 1 && !pad->sync))
2898 atom_tfra_add_entry (pad->tfra, dts, sn);
2901 if (G_UNLIKELY (force))
2907 /* Here's the clever bit of robust recording: Updating the moov
2908 * header is done using a ping-pong scheme inside 2 blocks of size
2909 * 'reserved_moov_size' at the start of the file, in such a way that the
2910 * file on-disk is always valid if interrupted.
2911 * Inside the reserved space, we have 2 pairs of free + moov atoms
2912 * (in that order), free-A + moov-A @ offset 0 and free-B + moov-B at
2913 * at offset "reserved_moov_size".
2915 * 1. Free-A has 0 size payload, moov-A immediately after is
2916 * active/current, and is padded with an internal Free atom to
2917 * end at reserved_space/2. Free-B is at reserved_space/2, sized
2918 * to cover the remaining free space (including moov-B).
2919 * 2. We write moov-B (which is invisible inside free-B), and pad it to
2920 * end at the end of free space. Then, we update free-A to size
2921 * reserved_space/2 + sizeof(free-B), which hides moov-A and the
2922 * free-B header, and makes moov-B active.
2923 * 3. Rewrite moov-A inside free-A, with padding out to free-B.
2924 * Change the size of free-A to make moov-A active again.
2925 * 4. Rinse and repeat.
2928 static GstFlowReturn
2929 gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux)
2933 guint64 freeA_offset;
2934 guint32 new_freeA_size;
2935 guint64 new_moov_offset;
2937 /* Update moov info, then seek and rewrite the MOOV atom */
2938 gst_qt_mux_update_global_statistics (qtmux);
2939 gst_qt_mux_configure_moov (qtmux);
2941 gst_qt_mux_update_edit_lists (qtmux);
2943 /* tags into file metadata */
2944 gst_qt_mux_setup_metadata (qtmux);
2946 /* chunks position is set relative to the first byte of the
2947 * MDAT atom payload. Set the overall offset into the file */
2948 atom_moov_chunks_set_offset (qtmux->moov, qtmux->header_size);
2950 /* Calculate which moov to rewrite. qtmux->moov_pos points to
2951 * the start of the free-A header */
2952 freeA_offset = qtmux->moov_pos;
2953 if (qtmux->reserved_moov_first_active) {
2954 GST_DEBUG_OBJECT (qtmux, "Updating pong moov header");
2955 /* After this, freeA will include itself, moovA, plus the freeB
2957 new_freeA_size = qtmux->reserved_moov_size + 16;
2959 GST_DEBUG_OBJECT (qtmux, "Updating ping moov header");
2962 /* the moov we update is after free-A, calculate its offset */
2963 new_moov_offset = freeA_offset + new_freeA_size;
2965 /* Swap ping-pong cadence marker */
2966 qtmux->reserved_moov_first_active = !qtmux->reserved_moov_first_active;
2968 /* seek and rewrite the MOOV atom */
2969 gst_segment_init (&segment, GST_FORMAT_BYTES);
2970 segment.start = new_moov_offset;
2971 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2974 gst_qt_mux_send_moov (qtmux, NULL, qtmux->reserved_moov_size, FALSE,
2976 if (ret != GST_FLOW_OK)
2979 /* Update the estimated recording space remaining, based on amount used so
2980 * far and duration muxed so far */
2981 if (qtmux->last_moov_size > qtmux->base_moov_size && qtmux->last_dts > 0) {
2982 GstClockTime remain;
2983 GstClockTime time_muxed = qtmux->last_dts;
2986 gst_util_uint64_scale (qtmux->reserved_moov_size -
2987 qtmux->last_moov_size, time_muxed,
2988 qtmux->last_moov_size - qtmux->base_moov_size);
2989 /* Always under-estimate slightly, so users
2990 * have time to stop muxing before we run out */
2991 if (remain < GST_SECOND / 2)
2994 remain -= GST_SECOND / 2;
2996 GST_INFO_OBJECT (qtmux,
2997 "Reserved %u header bytes. Used %u in %" GST_TIME_FORMAT
2998 ". Remaining now %u or approx %" G_GUINT64_FORMAT " ns\n",
2999 qtmux->reserved_moov_size, qtmux->last_moov_size,
3000 GST_TIME_ARGS (qtmux->last_dts),
3001 qtmux->reserved_moov_size - qtmux->last_moov_size, remain);
3003 GST_OBJECT_LOCK (qtmux);
3004 qtmux->reserved_duration_remaining = remain;
3005 qtmux->muxed_since_last_update = 0;
3006 GST_DEBUG_OBJECT (qtmux, "reserved remaining duration now %"
3007 G_GUINT64_FORMAT, qtmux->reserved_duration_remaining);
3008 GST_OBJECT_UNLOCK (qtmux);
3012 /* Now update the moov-A size. Don't pass offset, since we don't need
3013 * send_free_atom() to seek for us - all our callers seek back to
3014 * where they need after this, or they don't need it */
3015 gst_segment_init (&segment, GST_FORMAT_BYTES);
3016 segment.start = freeA_offset;
3017 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3019 ret = gst_qt_mux_send_free_atom (qtmux, NULL, new_freeA_size, TRUE);
3024 static GstFlowReturn
3025 gst_qt_mux_robust_recording_update (GstQTMux * qtmux, GstClockTime position)
3028 GstFlowReturn flow_ret;
3030 guint64 mdat_offset = qtmux->mdat_pos + 16 + qtmux->mdat_size;
3032 GST_OBJECT_LOCK (qtmux);
3033 if (qtmux->reserved_moov_update_period == GST_CLOCK_TIME_NONE) {
3034 GST_OBJECT_UNLOCK (qtmux);
3038 /* Update if position is > the threshold or there's been no update yet */
3039 if (qtmux->last_moov_update != GST_CLOCK_TIME_NONE &&
3040 (position <= qtmux->last_moov_update ||
3041 (position - qtmux->last_moov_update) <
3042 qtmux->reserved_moov_update_period)) {
3043 /* Update the offset of how much we've muxed, so the
3044 * report of remaining space keeps counting down */
3045 if (position > qtmux->last_moov_update &&
3046 position - qtmux->last_moov_update > qtmux->muxed_since_last_update) {
3047 GST_LOG_OBJECT (qtmux,
3048 "Muxed time %" G_GUINT64_FORMAT " since last moov update",
3049 qtmux->muxed_since_last_update);
3050 qtmux->muxed_since_last_update = position - qtmux->last_moov_update;
3052 GST_OBJECT_UNLOCK (qtmux);
3053 return GST_FLOW_OK; /* No update needed yet */
3056 qtmux->last_moov_update = position;
3057 GST_OBJECT_UNLOCK (qtmux);
3059 GST_DEBUG_OBJECT (qtmux, "Update moov atom, position %" GST_TIME_FORMAT
3060 " mdat starts @ %" G_GUINT64_FORMAT " we were a %" G_GUINT64_FORMAT,
3061 GST_TIME_ARGS (position), qtmux->mdat_pos, mdat_offset);
3063 flow_ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
3064 if (G_UNLIKELY (flow_ret != GST_FLOW_OK))
3067 /* Seek back to previous position */
3068 gst_segment_init (&segment, GST_FORMAT_BYTES);
3069 segment.start = mdat_offset;
3070 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3075 static GstFlowReturn
3076 gst_qt_mux_register_and_push_sample (GstQTMux * qtmux, GstQTPad * pad,
3077 GstBuffer * buffer, gboolean is_last_buffer, guint nsamples,
3078 gint64 last_dts, gint64 scaled_duration, guint sample_size,
3079 guint64 chunk_offset, gboolean sync, gboolean do_pts, gint64 pts_offset)
3081 GstFlowReturn ret = GST_FLOW_OK;
3083 /* note that a new chunk is started each time (not fancy but works) */
3084 if (qtmux->moov_recov_file) {
3085 if (!atoms_recov_write_trak_samples (qtmux->moov_recov_file, pad->trak,
3086 nsamples, (gint32) scaled_duration, sample_size, chunk_offset, sync,
3087 do_pts, pts_offset)) {
3088 GST_WARNING_OBJECT (qtmux, "Failed to write sample information to "
3089 "recovery file, disabling recovery");
3090 fclose (qtmux->moov_recov_file);
3091 qtmux->moov_recov_file = NULL;
3095 switch (qtmux->mux_mode) {
3096 case GST_QT_MUX_MODE_MOOV_AT_END:
3097 case GST_QT_MUX_MODE_FAST_START:
3098 case GST_QT_MUX_MODE_ROBUST_RECORDING:
3099 atom_trak_add_samples (pad->trak, nsamples, (gint32) scaled_duration,
3100 sample_size, chunk_offset, sync, pts_offset);
3101 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->mdat_size, TRUE);
3102 /* Check if it's time to re-write the headers in robust-recording mode */
3103 if (ret == GST_FLOW_OK
3104 && qtmux->mux_mode == GST_QT_MUX_MODE_ROBUST_RECORDING)
3105 ret = gst_qt_mux_robust_recording_update (qtmux, pad->total_duration);
3107 case GST_QT_MUX_MODE_FRAGMENTED:
3108 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
3109 /* ensure that always sync samples are marked as such */
3110 ret = gst_qt_mux_pad_fragment_add_buffer (qtmux, pad, buffer,
3111 is_last_buffer, nsamples, last_dts, (gint32) scaled_duration,
3112 sample_size, !pad->sync || sync, pts_offset);
3119 static GstFlowReturn
3120 gst_qt_mux_check_and_update_timecode (GstQTMux * qtmux, GstQTPad * pad,
3121 GstBuffer * buf, GstFlowReturn ret)
3123 GstVideoTimeCodeMeta *tc_meta;
3124 GstVideoTimeCode *tc;
3127 guint32 frames_since_daily_jam;
3129 if (buf == NULL || (pad->tc_trak != NULL && pad->tc_pos == -1))
3132 tc_meta = gst_buffer_get_video_time_code_meta (buf);
3138 /* This means we never got a timecode before */
3139 if (pad->first_tc == NULL) {
3140 #ifndef GST_DISABLE_GST_DEBUG
3141 gchar *tc_str = gst_video_time_code_to_string (tc);
3142 GST_DEBUG_OBJECT (qtmux, "Found first timecode %s", tc_str);
3145 g_assert (pad->tc_trak == NULL);
3146 tc_buf = gst_buffer_new_allocate (NULL, 4, NULL);
3147 pad->first_tc = gst_video_time_code_copy (tc);
3148 /* If frames are out of order, the frame we're currently getting might
3149 * not be the first one. Just write a 0 timecode for now and wait
3150 * until we receive a timecode that's lower than the current one */
3151 if (pad->is_out_of_order) {
3152 pad->first_pts = GST_BUFFER_PTS (buf);
3153 frames_since_daily_jam = 0;
3154 /* Position to rewrite */
3155 pad->tc_pos = qtmux->mdat_size;
3157 frames_since_daily_jam =
3158 gst_video_time_code_frames_since_daily_jam (pad->first_tc);
3159 frames_since_daily_jam = GUINT32_TO_BE (frames_since_daily_jam);
3161 /* Write the timecode trak now */
3162 pad->tc_trak = atom_trak_new (qtmux->context);
3163 atom_moov_add_trak (qtmux->moov, pad->tc_trak);
3165 pad->trak->tref = atom_tref_new (FOURCC_tmcd);
3166 atom_tref_add_entry (pad->trak->tref, pad->tc_trak->tkhd.track_ID);
3168 atom_trak_set_timecode_type (pad->tc_trak, qtmux->context, pad->first_tc);
3170 szret = gst_buffer_fill (tc_buf, 0, &frames_since_daily_jam, 4);
3171 g_assert (szret == 4);
3173 atom_trak_add_samples (pad->tc_trak, 1, 1, 4, qtmux->mdat_size, FALSE, 0);
3174 ret = gst_qt_mux_send_buffer (qtmux, tc_buf, &qtmux->mdat_size, TRUE);
3176 /* Need to reset the current chunk (of the previous pad) here because
3177 * some other data was written now above, and the pad has to start a
3179 qtmux->current_chunk_offset = -1;
3180 qtmux->current_chunk_size = 0;
3181 qtmux->current_chunk_duration = 0;
3182 } else if (pad->is_out_of_order) {
3183 /* Check for a lower timecode than the one stored */
3184 g_assert (pad->tc_trak != NULL);
3185 if (GST_BUFFER_DTS (buf) <= pad->first_pts) {
3186 if (gst_video_time_code_compare (tc, pad->first_tc) == -1) {
3187 gst_video_time_code_free (pad->first_tc);
3188 pad->first_tc = gst_video_time_code_copy (tc);
3191 guint64 bk_size = qtmux->mdat_size;
3193 /* If this frame's DTS is after the first PTS received, it means
3194 * we've already received the first frame to be presented. Otherwise
3195 * the decoder would need to go back in time */
3196 gst_qt_mux_update_timecode (qtmux, pad);
3198 /* Reset writing position */
3199 gst_segment_init (&segment, GST_FORMAT_BYTES);
3200 segment.start = bk_size;
3201 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3209 * Here we push the buffer and update the tables in the track atoms
3211 static GstFlowReturn
3212 gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad, GstBuffer * buf)
3214 GstBuffer *last_buf = NULL;
3215 GstClockTime duration;
3216 guint nsamples, sample_size;
3217 guint64 chunk_offset;
3218 gint64 last_dts, scaled_duration;
3219 gint64 pts_offset = 0;
3220 gboolean sync = FALSE;
3221 GstFlowReturn ret = GST_FLOW_OK;
3224 goto not_negotiated;
3226 /* if this pad has a prepare function, call it */
3227 if (pad->prepare_buf_func != NULL) {
3228 buf = pad->prepare_buf_func (pad, buf, qtmux);
3231 ret = gst_qt_mux_check_and_update_timecode (qtmux, pad, buf, ret);
3232 if (ret != GST_FLOW_OK) {
3234 gst_buffer_unref (buf);
3238 last_buf = pad->last_buf;
3239 pad->last_buf = buf;
3241 if (last_buf == NULL) {
3242 #ifndef GST_DISABLE_GST_DEBUG
3244 GST_DEBUG_OBJECT (qtmux, "Pad %s has no previous buffer stored and "
3245 "received NULL buffer, doing nothing",
3246 GST_PAD_NAME (pad->collect.pad));
3248 GST_LOG_OBJECT (qtmux,
3249 "Pad %s has no previous buffer stored, storing now",
3250 GST_PAD_NAME (pad->collect.pad));
3253 qtmux->current_pad = pad;
3257 if (!GST_BUFFER_PTS_IS_VALID (last_buf))
3260 /* if this is the first buffer, store the timestamp */
3261 if (G_UNLIKELY (pad->first_ts == GST_CLOCK_TIME_NONE)) {
3262 if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3263 pad->first_ts = GST_BUFFER_PTS (last_buf);
3264 } else if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3265 pad->first_ts = GST_BUFFER_DTS (last_buf);
3268 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3269 pad->first_dts = pad->last_dts = GST_BUFFER_DTS (last_buf);
3270 } else if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3271 pad->first_dts = pad->last_dts = GST_BUFFER_PTS (last_buf);
3274 if (GST_CLOCK_TIME_IS_VALID (pad->first_ts)) {
3275 GST_DEBUG ("setting first_ts to %" G_GUINT64_FORMAT, pad->first_ts);
3277 GST_WARNING_OBJECT (qtmux, "First buffer for pad %s has no timestamp, "
3278 "using 0 as first timestamp", GST_PAD_NAME (pad->collect.pad));
3279 pad->first_ts = pad->first_dts = 0;
3281 GST_DEBUG_OBJECT (qtmux, "Stored first timestamp for pad %s %"
3282 GST_TIME_FORMAT, GST_PAD_NAME (pad->collect.pad),
3283 GST_TIME_ARGS (pad->first_ts));
3286 if (buf && GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (buf)) &&
3287 GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (last_buf)) &&
3288 GST_BUFFER_DTS (buf) < GST_BUFFER_DTS (last_buf)) {
3289 GST_ERROR ("decreasing DTS value %" GST_TIME_FORMAT " < %" GST_TIME_FORMAT,
3290 GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
3291 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)));
3292 pad->last_buf = buf = gst_buffer_make_writable (buf);
3293 GST_BUFFER_DTS (buf) = GST_BUFFER_DTS (last_buf);
3296 /* duration actually means time delta between samples, so we calculate
3297 * the duration based on the difference in DTS or PTS, falling back
3298 * to DURATION if the other two don't exist, such as with the last
3299 * sample before EOS. Or use 0 if nothing else is available */
3300 if (GST_BUFFER_DURATION_IS_VALID (last_buf))
3301 duration = GST_BUFFER_DURATION (last_buf);
3305 if (buf && GST_BUFFER_DTS_IS_VALID (buf)
3306 && GST_BUFFER_DTS_IS_VALID (last_buf))
3307 duration = GST_BUFFER_DTS (buf) - GST_BUFFER_DTS (last_buf);
3308 else if (buf && GST_BUFFER_PTS_IS_VALID (buf)
3309 && GST_BUFFER_PTS_IS_VALID (last_buf))
3310 duration = GST_BUFFER_PTS (buf) - GST_BUFFER_PTS (last_buf);
3313 if (qtmux->current_pad != pad || qtmux->current_chunk_offset == -1) {
3314 GST_DEBUG_OBJECT (qtmux,
3315 "Switching to next chunk for pad %s:%s: offset %" G_GUINT64_FORMAT
3316 ", size %" G_GUINT64_FORMAT ", duration %" GST_TIME_FORMAT,
3317 GST_DEBUG_PAD_NAME (pad->collect.pad), qtmux->current_chunk_offset,
3318 qtmux->current_chunk_size,
3319 GST_TIME_ARGS (qtmux->current_chunk_duration));
3320 qtmux->current_pad = pad;
3321 if (qtmux->current_chunk_offset == -1)
3322 qtmux->current_chunk_offset = qtmux->mdat_size;
3324 qtmux->current_chunk_offset += qtmux->current_chunk_size;
3325 qtmux->current_chunk_size = 0;
3326 qtmux->current_chunk_duration = 0;
3329 last_dts = gst_util_uint64_scale_round (pad->last_dts,
3330 atom_trak_get_timescale (pad->trak), GST_SECOND);
3332 /* fragments only deal with 1 buffer == 1 chunk (== 1 sample) */
3333 if (pad->sample_size && !qtmux->fragment_sequence) {
3334 GstClockTime expected_timestamp;
3336 /* Constant size packets: usually raw audio (with many samples per
3337 buffer (= chunk)), but can also be fixed-packet-size codecs like ADPCM
3339 sample_size = pad->sample_size;
3340 if (gst_buffer_get_size (last_buf) % sample_size != 0)
3341 goto fragmented_sample;
3343 /* note: qt raw audio storage warps it implicitly into a timewise
3344 * perfect stream, discarding buffer times.
3345 * If the difference between the current PTS and the expected one
3346 * becomes too big, we error out: there was a gap and we have no way to
3347 * represent that, causing A/V sync to be off */
3348 expected_timestamp =
3349 gst_util_uint64_scale (pad->sample_offset, GST_SECOND,
3350 atom_trak_get_timescale (pad->trak)) + pad->first_ts;
3351 if (ABSDIFF (GST_BUFFER_DTS_OR_PTS (last_buf),
3352 expected_timestamp) > qtmux->max_raw_audio_drift)
3353 goto raw_audio_timestamp_drift;
3355 if (GST_BUFFER_DURATION (last_buf) != GST_CLOCK_TIME_NONE) {
3356 nsamples = gst_util_uint64_scale_round (GST_BUFFER_DURATION (last_buf),
3357 atom_trak_get_timescale (pad->trak), GST_SECOND);
3358 duration = GST_BUFFER_DURATION (last_buf);
3360 nsamples = gst_buffer_get_size (last_buf) / sample_size;
3362 gst_util_uint64_scale_round (nsamples, GST_SECOND,
3363 atom_trak_get_timescale (pad->trak));
3366 /* timescale = samplerate */
3367 scaled_duration = 1;
3369 pad->first_dts + gst_util_uint64_scale_round (pad->sample_offset +
3370 nsamples, GST_SECOND, atom_trak_get_timescale (pad->trak));
3373 sample_size = gst_buffer_get_size (last_buf);
3374 if ((buf && GST_BUFFER_DTS_IS_VALID (buf))
3375 || GST_BUFFER_DTS_IS_VALID (last_buf)) {
3377 if (buf && GST_BUFFER_DTS_IS_VALID (buf)) {
3378 pad->last_dts = GST_BUFFER_DTS (buf);
3380 pad->last_dts = GST_BUFFER_DTS (last_buf) + duration;
3382 if ((gint64) (pad->last_dts) < 0) {
3383 scaled_dts = -gst_util_uint64_scale_round (-pad->last_dts,
3384 atom_trak_get_timescale (pad->trak), GST_SECOND);
3386 scaled_dts = gst_util_uint64_scale_round (pad->last_dts,
3387 atom_trak_get_timescale (pad->trak), GST_SECOND);
3389 scaled_duration = scaled_dts - last_dts;
3390 last_dts = scaled_dts;
3392 /* first convert intended timestamp (in GstClockTime resolution) to
3393 * trak timescale, then derive delta;
3394 * this ensures sums of (scale)delta add up to converted timestamp,
3395 * which only deviates at most 1/scale from timestamp itself */
3396 scaled_duration = gst_util_uint64_scale_round (pad->last_dts + duration,
3397 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts;
3398 pad->last_dts += duration;
3402 pad->sample_offset += nsamples;
3404 /* for computing the avg bitrate */
3405 pad->total_bytes += gst_buffer_get_size (last_buf);
3406 pad->total_duration += duration;
3407 qtmux->current_chunk_size += gst_buffer_get_size (last_buf);
3408 qtmux->current_chunk_duration += duration;
3410 chunk_offset = qtmux->current_chunk_offset;
3412 GST_LOG_OBJECT (qtmux,
3413 "Pad (%s) dts updated to %" GST_TIME_FORMAT,
3414 GST_PAD_NAME (pad->collect.pad), GST_TIME_ARGS (pad->last_dts));
3415 GST_LOG_OBJECT (qtmux,
3416 "Adding %d samples to track, duration: %" G_GUINT64_FORMAT
3417 " size: %" G_GUINT32_FORMAT " chunk offset: %" G_GUINT64_FORMAT,
3418 nsamples, scaled_duration, sample_size, chunk_offset);
3420 /* might be a sync sample */
3422 !GST_BUFFER_FLAG_IS_SET (last_buf, GST_BUFFER_FLAG_DELTA_UNIT)) {
3423 GST_LOG_OBJECT (qtmux, "Adding new sync sample entry for track of pad %s",
3424 GST_PAD_NAME (pad->collect.pad));
3428 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3429 last_dts = gst_util_uint64_scale_round (GST_BUFFER_DTS (last_buf),
3430 atom_trak_get_timescale (pad->trak), GST_SECOND);
3432 (gint64) (gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3433 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts);
3436 last_dts = gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3437 atom_trak_get_timescale (pad->trak), GST_SECOND);
3439 GST_DEBUG ("dts: %" GST_TIME_FORMAT " pts: %" GST_TIME_FORMAT
3440 " timebase_dts: %d pts_offset: %d",
3441 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)),
3442 GST_TIME_ARGS (GST_BUFFER_PTS (last_buf)),
3443 (int) (last_dts), (int) (pts_offset));
3445 if (GST_CLOCK_TIME_IS_VALID (duration)
3446 && (qtmux->current_chunk_duration > qtmux->longest_chunk
3447 || !GST_CLOCK_TIME_IS_VALID (qtmux->longest_chunk))) {
3448 GST_DEBUG_OBJECT (qtmux,
3449 "New longest chunk found: %" GST_TIME_FORMAT ", pad %s",
3450 GST_TIME_ARGS (qtmux->current_chunk_duration),
3451 GST_PAD_NAME (pad->collect.pad));
3452 qtmux->longest_chunk = qtmux->current_chunk_duration;
3455 /* now we go and register this buffer/sample all over */
3456 ret = gst_qt_mux_register_and_push_sample (qtmux, pad, last_buf,
3457 buf == NULL, nsamples, last_dts, scaled_duration, sample_size,
3458 chunk_offset, sync, TRUE, pts_offset);
3460 /* if this is sparse and we have a next buffer, check if there is any gap
3461 * between them to insert an empty sample */
3462 if (pad->sparse && buf) {
3463 if (pad->create_empty_buffer) {
3464 GstBuffer *empty_buf;
3465 gint64 empty_duration =
3466 GST_BUFFER_PTS (buf) - (GST_BUFFER_PTS (last_buf) + duration);
3467 gint64 empty_duration_scaled;
3469 empty_buf = pad->create_empty_buffer (pad, empty_duration);
3471 empty_duration_scaled = gst_util_uint64_scale_round (empty_duration,
3472 atom_trak_get_timescale (pad->trak), GST_SECOND);
3474 pad->total_bytes += gst_buffer_get_size (empty_buf);
3475 pad->total_duration += duration;
3478 gst_qt_mux_register_and_push_sample (qtmux, pad, empty_buf, FALSE, 1,
3479 last_dts + scaled_duration, empty_duration_scaled,
3480 gst_buffer_get_size (empty_buf), chunk_offset, sync, TRUE, 0);
3482 /* our only case currently is tx3g subtitles, so there is no reason to fill this yet */
3483 g_assert_not_reached ();
3484 GST_WARNING_OBJECT (qtmux,
3485 "no empty buffer creation function found for pad %s",
3486 GST_PAD_NAME (pad->collect.pad));
3497 gst_buffer_unref (last_buf);
3498 return GST_FLOW_ERROR;
3502 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
3503 ("Audio buffer contains fragmented sample."));
3506 raw_audio_timestamp_drift:
3508 /* TODO: Could in theory be implemented with edit lists */
3509 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
3510 ("Audio stream timestamps are drifting (got %" GST_TIME_FORMAT
3511 ", expected %" GST_TIME_FORMAT "). This is not supported yet!",
3512 GST_TIME_ARGS (GST_BUFFER_DTS_OR_PTS (last_buf)),
3513 GST_TIME_ARGS (gst_util_uint64_scale (pad->sample_offset,
3515 atom_trak_get_timescale (pad->trak)) + pad->first_ts)));
3520 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Buffer has no PTS."));
3525 GST_ELEMENT_ERROR (qtmux, CORE, NEGOTIATION, (NULL),
3526 ("format wasn't negotiated before buffer flow on pad %s",
3527 GST_PAD_NAME (pad->collect.pad)));
3529 gst_buffer_unref (buf);
3530 return GST_FLOW_NOT_NEGOTIATED;
3535 * DTS running time can be negative. There is no way to represent that in
3536 * MP4 however, thus we need to offset DTS so that it starts from 0.
3539 gst_qt_pad_adjust_buffer_dts (GstQTMux * qtmux, GstQTPad * pad,
3540 GstCollectData * cdata, GstBuffer ** buf)
3545 pts = GST_BUFFER_PTS (*buf);
3546 dts = GST_COLLECT_PADS_DTS (cdata);
3548 GST_LOG_OBJECT (qtmux, "selected pad %s with PTS %" GST_TIME_FORMAT
3549 " and DTS %" GST_STIME_FORMAT, GST_PAD_NAME (cdata->pad),
3550 GST_TIME_ARGS (pts), GST_STIME_ARGS (dts));
3552 if (!GST_CLOCK_TIME_IS_VALID (pad->dts_adjustment)) {
3553 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0)
3554 pad->dts_adjustment = -dts;
3556 pad->dts_adjustment = 0;
3559 if (pad->dts_adjustment > 0) {
3560 *buf = gst_buffer_make_writable (*buf);
3562 dts += pad->dts_adjustment;
3564 if (GST_CLOCK_TIME_IS_VALID (pts))
3565 pts += pad->dts_adjustment;
3567 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0) {
3568 GST_WARNING_OBJECT (pad, "Decreasing DTS.");
3573 GST_WARNING_OBJECT (pad, "DTS is bigger then PTS");
3577 GST_BUFFER_PTS (*buf) = pts;
3578 GST_BUFFER_DTS (*buf) = dts;
3580 GST_LOG_OBJECT (qtmux, "time adjusted to PTS %" GST_TIME_FORMAT
3581 " and DTS %" GST_TIME_FORMAT, GST_TIME_ARGS (pts), GST_TIME_ARGS (dts));
3586 find_best_pad (GstQTMux * qtmux, GstCollectPads * pads)
3589 GstQTPad *best_pad = NULL;
3591 if (qtmux->current_pad &&
3592 (qtmux->interleave_bytes != 0 || qtmux->interleave_time != 0) &&
3593 (qtmux->interleave_bytes == 0
3594 || qtmux->current_chunk_size <= qtmux->interleave_bytes)
3595 && (qtmux->interleave_time == 0
3596 || qtmux->current_chunk_duration <= qtmux->interleave_time)
3597 && qtmux->mux_mode != GST_QT_MUX_MODE_FRAGMENTED
3598 && qtmux->mux_mode != GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) {
3599 GstBuffer *tmp_buf =
3600 gst_collect_pads_peek (pads, (GstCollectData *) qtmux->current_pad);
3602 if (tmp_buf || qtmux->current_pad->last_buf) {
3603 best_pad = qtmux->current_pad;
3605 gst_buffer_unref (tmp_buf);
3606 GST_DEBUG_OBJECT (qtmux, "Reusing pad %s:%s",
3607 GST_DEBUG_PAD_NAME (best_pad->collect.pad));
3609 } else if (qtmux->collect->data->next) {
3610 /* Only switch pads if we have more than one, otherwise
3611 * we can just put everything into a single chunk and save
3612 * a few bytes of offsets
3614 if (qtmux->current_pad)
3615 GST_DEBUG_OBJECT (qtmux, "Switching from pad %s:%s",
3616 GST_DEBUG_PAD_NAME (qtmux->current_pad->collect.pad));
3617 best_pad = qtmux->current_pad = NULL;
3621 GstClockTime best_time = GST_CLOCK_TIME_NONE;
3623 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
3624 GstCollectData *cdata = (GstCollectData *) walk->data;
3625 GstQTPad *qtpad = (GstQTPad *) cdata;
3627 GstClockTime timestamp;
3629 tmp_buf = gst_collect_pads_peek (pads, cdata);
3631 /* This one is newly EOS now, finish it for real */
3632 if (qtpad->last_buf) {
3633 timestamp = GST_BUFFER_DTS_OR_PTS (qtpad->last_buf);
3638 if (qtpad->last_buf)
3639 timestamp = GST_BUFFER_DTS_OR_PTS (qtpad->last_buf);
3641 timestamp = GST_BUFFER_DTS_OR_PTS (tmp_buf);
3644 if (best_pad == NULL ||
3645 !GST_CLOCK_TIME_IS_VALID (best_time) || timestamp < best_time) {
3647 best_time = timestamp;
3651 gst_buffer_unref (tmp_buf);
3655 GST_DEBUG_OBJECT (qtmux, "Choosing pad %s:%s",
3656 GST_DEBUG_PAD_NAME (best_pad->collect.pad));
3658 GST_DEBUG_OBJECT (qtmux, "No best pad: EOS");
3665 static GstFlowReturn
3666 gst_qt_mux_collected (GstCollectPads * pads, gpointer user_data)
3668 GstFlowReturn ret = GST_FLOW_OK;
3669 GstQTMux *qtmux = GST_QT_MUX_CAST (user_data);
3670 GstQTPad *best_pad = NULL;
3672 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_STARTED)) {
3673 if ((ret = gst_qt_mux_start_file (qtmux)) != GST_FLOW_OK)
3676 qtmux->state = GST_QT_MUX_STATE_DATA;
3679 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_EOS))
3680 return GST_FLOW_EOS;
3682 best_pad = find_best_pad (qtmux, pads);
3684 /* clipping already converted to running time */
3685 if (best_pad != NULL) {
3686 GstBuffer *buf = gst_collect_pads_pop (pads, (GstCollectData *) best_pad);
3688 g_assert (buf || best_pad->last_buf);
3690 gst_qt_pad_adjust_buffer_dts (qtmux, best_pad,
3691 (GstCollectData *) best_pad, &buf);
3693 ret = gst_qt_mux_add_buffer (qtmux, best_pad, buf);
3695 qtmux->state = GST_QT_MUX_STATE_EOS;
3696 ret = gst_qt_mux_stop_file (qtmux);
3697 if (ret == GST_FLOW_OK) {
3698 GST_DEBUG_OBJECT (qtmux, "Pushing eos");
3699 gst_pad_push_event (qtmux->srcpad, gst_event_new_eos ());
3702 GST_WARNING_OBJECT (qtmux, "Failed to stop file: %s",
3703 gst_flow_get_name (ret));
3711 check_field (GQuark field_id, const GValue * value, gpointer user_data)
3713 GstStructure *structure = (GstStructure *) user_data;
3714 const GValue *other = gst_structure_id_get_value (structure, field_id);
3717 return gst_value_compare (value, other) == GST_VALUE_EQUAL;
3721 gst_qtmux_caps_is_subset_full (GstQTMux * qtmux, GstCaps * subset,
3724 GstStructure *sub_s = gst_caps_get_structure (subset, 0);
3725 GstStructure *sup_s = gst_caps_get_structure (superset, 0);
3727 return gst_structure_foreach (sub_s, check_field, sup_s);
3731 gst_qt_mux_audio_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
3733 GstPad *pad = qtpad->collect.pad;
3734 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
3735 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
3736 GstStructure *structure;
3737 const gchar *mimetype;
3738 gint rate, channels;
3739 const GValue *value = NULL;
3740 const GstBuffer *codec_data = NULL;
3741 GstQTMuxFormat format;
3742 AudioSampleEntry entry = { 0, };
3743 AtomInfo *ext_atom = NULL;
3744 gint constant_size = 0;
3745 const gchar *stream_format;
3747 qtpad->prepare_buf_func = NULL;
3749 /* does not go well to renegotiate stream mid-way, unless
3750 * the old caps are a subset of the new one (this means upstream
3751 * added more info to the caps, as both should be 'fixed' caps) */
3752 if (qtpad->fourcc) {
3753 GstCaps *current_caps;
3755 current_caps = gst_pad_get_current_caps (pad);
3756 g_assert (caps != NULL);
3758 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
3759 gst_caps_unref (current_caps);
3760 goto refuse_renegotiation;
3762 GST_DEBUG_OBJECT (qtmux,
3763 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
3764 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
3765 gst_caps_unref (current_caps);
3768 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
3769 GST_DEBUG_PAD_NAME (pad), caps);
3771 format = qtmux_klass->format;
3772 structure = gst_caps_get_structure (caps, 0);
3773 mimetype = gst_structure_get_name (structure);
3776 if (!gst_structure_get_int (structure, "channels", &channels) ||
3777 !gst_structure_get_int (structure, "rate", &rate)) {
3782 value = gst_structure_get_value (structure, "codec_data");
3784 codec_data = gst_value_get_buffer (value);
3786 qtpad->is_out_of_order = FALSE;
3788 /* set common properties */
3789 entry.sample_rate = rate;
3790 entry.channels = channels;
3792 entry.sample_size = 16;
3793 /* this is the typical compressed case */
3794 if (format == GST_QT_MUX_FORMAT_QT) {
3796 entry.compression_id = -2;
3799 /* now map onto a fourcc, and some extra properties */
3800 if (strcmp (mimetype, "audio/mpeg") == 0) {
3801 gint mpegversion = 0, mpegaudioversion = 0;
3804 gst_structure_get_int (structure, "mpegversion", &mpegversion);
3805 switch (mpegversion) {
3807 gst_structure_get_int (structure, "layer", &layer);
3808 gst_structure_get_int (structure, "mpegaudioversion",
3812 /* note: QuickTime player does not like mp3 either way in iso/mp4 */
3813 if (format == GST_QT_MUX_FORMAT_QT)
3814 entry.fourcc = FOURCC__mp3;
3816 entry.fourcc = FOURCC_mp4a;
3818 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG1_P3,
3819 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3820 qtpad->max_bitrate);
3823 g_warn_if_fail (format == GST_QT_MUX_FORMAT_MP4);
3824 entry.samples_per_packet = 384;
3825 } else if (layer == 2) {
3826 g_warn_if_fail (format == GST_QT_MUX_FORMAT_MP4);
3827 entry.samples_per_packet = 1152;
3829 g_warn_if_fail (layer == 3);
3830 entry.samples_per_packet = (mpegaudioversion <= 1) ? 1152 : 576;
3832 entry.bytes_per_sample = 2;
3836 /* check stream-format */
3837 stream_format = gst_structure_get_string (structure, "stream-format");
3838 if (stream_format) {
3839 if (strcmp (stream_format, "raw") != 0) {
3840 GST_WARNING_OBJECT (qtmux, "Unsupported AAC stream-format %s, "
3841 "please use 'raw'", stream_format);
3845 GST_WARNING_OBJECT (qtmux, "No stream-format present in caps, "
3849 if (!codec_data || gst_buffer_get_size ((GstBuffer *) codec_data) < 2) {
3850 GST_WARNING_OBJECT (qtmux, "no (valid) codec_data for AAC audio");
3855 gst_buffer_extract ((GstBuffer *) codec_data, 0, &profile, 1);
3856 /* warn if not Low Complexity profile */
3859 GST_WARNING_OBJECT (qtmux,
3860 "non-LC AAC may not run well on (Apple) QuickTime/iTunes");
3864 entry.fourcc = FOURCC_mp4a;
3866 if (format == GST_QT_MUX_FORMAT_QT)
3867 ext_atom = build_mov_aac_extension (qtpad->trak, codec_data,
3868 qtpad->avg_bitrate, qtpad->max_bitrate);
3871 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P3,
3872 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3873 qtpad->max_bitrate);
3878 } else if (strcmp (mimetype, "audio/AMR") == 0) {
3879 entry.fourcc = FOURCC_samr;
3880 entry.sample_size = 16;
3881 entry.samples_per_packet = 160;
3882 entry.bytes_per_sample = 2;
3883 ext_atom = build_amr_extension ();
3884 } else if (strcmp (mimetype, "audio/AMR-WB") == 0) {
3885 entry.fourcc = FOURCC_sawb;
3886 entry.sample_size = 16;
3887 entry.samples_per_packet = 320;
3888 entry.bytes_per_sample = 2;
3889 ext_atom = build_amr_extension ();
3890 } else if (strcmp (mimetype, "audio/x-raw") == 0) {
3893 gst_audio_info_init (&info);
3894 if (!gst_audio_info_from_caps (&info, caps))
3897 /* spec has no place for a distinction in these */
3898 if (info.finfo->width != info.finfo->depth) {
3899 GST_DEBUG_OBJECT (qtmux, "width must be same as depth!");
3903 if ((info.finfo->flags & GST_AUDIO_FORMAT_FLAG_SIGNED)) {
3904 if (info.finfo->endianness == G_LITTLE_ENDIAN)
3905 entry.fourcc = FOURCC_sowt;
3906 else if (info.finfo->endianness == G_BIG_ENDIAN)
3907 entry.fourcc = FOURCC_twos;
3909 entry.fourcc = FOURCC_sowt;
3910 /* maximum backward compatibility; only new version for > 16 bit */
3911 if (info.finfo->depth <= 16)
3913 /* not compressed in any case */
3914 entry.compression_id = 0;
3915 /* QT spec says: max at 16 bit even if sample size were actually larger,
3916 * however, most players (e.g. QuickTime!) seem to disagree, so ... */
3917 entry.sample_size = info.finfo->depth;
3918 entry.bytes_per_sample = info.finfo->depth / 8;
3919 entry.samples_per_packet = 1;
3920 entry.bytes_per_packet = info.finfo->depth / 8;
3921 entry.bytes_per_frame = entry.bytes_per_packet * info.channels;
3923 if (info.finfo->width == 8 && info.finfo->depth == 8) {
3924 /* fall back to old 8-bit version */
3925 entry.fourcc = FOURCC_raw_;
3927 entry.compression_id = 0;
3928 entry.sample_size = 8;
3930 GST_DEBUG_OBJECT (qtmux, "non 8-bit PCM must be signed");
3934 constant_size = (info.finfo->depth / 8) * info.channels;
3935 } else if (strcmp (mimetype, "audio/x-alaw") == 0) {
3936 entry.fourcc = FOURCC_alaw;
3937 entry.samples_per_packet = 1023;
3938 entry.bytes_per_sample = 2;
3939 } else if (strcmp (mimetype, "audio/x-mulaw") == 0) {
3940 entry.fourcc = FOURCC_ulaw;
3941 entry.samples_per_packet = 1023;
3942 entry.bytes_per_sample = 2;
3943 } else if (strcmp (mimetype, "audio/x-adpcm") == 0) {
3945 if (!gst_structure_get_int (structure, "block_align", &blocksize)) {
3946 GST_DEBUG_OBJECT (qtmux, "broken caps, block_align missing");
3949 /* Currently only supports WAV-style IMA ADPCM, for which the codec id is
3951 entry.fourcc = MS_WAVE_FOURCC (0x11);
3952 /* 4 byte header per channel (including one sample). 2 samples per byte
3953 remaining. Simplifying gives the following (samples per block per
3955 entry.samples_per_packet = 2 * blocksize / channels - 7;
3956 entry.bytes_per_sample = 2;
3958 entry.bytes_per_frame = blocksize;
3959 entry.bytes_per_packet = blocksize / channels;
3960 /* ADPCM has constant size packets */
3962 /* TODO: I don't really understand why this helps, but it does! Constant
3963 * size and compression_id of -2 seem to be incompatible, and other files
3964 * in the wild use this too. */
3965 entry.compression_id = -1;
3967 ext_atom = build_ima_adpcm_extension (channels, rate, blocksize);
3968 } else if (strcmp (mimetype, "audio/x-alac") == 0) {
3969 GstBuffer *codec_config;
3973 entry.fourcc = FOURCC_alac;
3974 gst_buffer_map ((GstBuffer *) codec_data, &map, GST_MAP_READ);
3975 /* let's check if codec data already comes with 'alac' atom prefix */
3976 if (!codec_data || (len = map.size) < 28) {
3977 GST_DEBUG_OBJECT (qtmux, "broken caps, codec data missing");
3978 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3981 if (GST_READ_UINT32_LE (map.data + 4) == FOURCC_alac) {
3984 gst_buffer_copy_region ((GstBuffer *) codec_data,
3985 GST_BUFFER_COPY_MEMORY, 8, len);
3987 codec_config = gst_buffer_ref ((GstBuffer *) codec_data);
3989 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3991 /* does not look good, but perhaps some trailing unneeded stuff */
3992 GST_WARNING_OBJECT (qtmux, "unexpected codec-data size, possibly broken");
3994 if (format == GST_QT_MUX_FORMAT_QT)
3995 ext_atom = build_mov_alac_extension (codec_config);
3997 ext_atom = build_codec_data_extension (FOURCC_alac, codec_config);
3998 /* set some more info */
3999 gst_buffer_map (codec_config, &map, GST_MAP_READ);
4000 entry.bytes_per_sample = 2;
4001 entry.samples_per_packet = GST_READ_UINT32_BE (map.data + 4);
4002 gst_buffer_unmap (codec_config, &map);
4003 gst_buffer_unref (codec_config);
4004 } else if (strcmp (mimetype, "audio/x-ac3") == 0) {
4005 entry.fourcc = FOURCC_ac_3;
4007 /* Fixed values according to TS 102 366 but it also mentions that
4008 * they should be ignored */
4010 entry.sample_size = 16;
4012 /* AC-3 needs an extension atom but its data can only be obtained from
4013 * the stream itself. Abuse the prepare_buf_func so we parse a frame
4014 * and get the needed data */
4015 qtpad->prepare_buf_func = gst_qt_mux_prepare_parse_ac3_frame;
4016 } else if (strcmp (mimetype, "audio/x-opus") == 0) {
4017 /* Based on the specification defined in:
4018 * https://www.opus-codec.org/docs/opus_in_isobmff.html */
4019 guint8 channels, mapping_family, stream_count, coupled_count;
4023 guint8 channel_mapping[256];
4024 const GValue *streamheader;
4025 const GValue *first_element;
4028 entry.fourcc = FOURCC_opus;
4029 entry.sample_size = 16;
4031 streamheader = gst_structure_get_value (structure, "streamheader");
4032 if (streamheader && GST_VALUE_HOLDS_ARRAY (streamheader) &&
4033 gst_value_array_get_size (streamheader) != 0) {
4034 first_element = gst_value_array_get_value (streamheader, 0);
4035 header = gst_value_get_buffer (first_element);
4036 if (!gst_codec_utils_opus_parse_header (header, &rate, &channels,
4037 &mapping_family, &stream_count, &coupled_count, channel_mapping,
4038 &pre_skip, &output_gain)) {
4039 GST_ERROR_OBJECT (qtmux, "Incomplete OpusHead");
4043 GST_WARNING_OBJECT (qtmux,
4044 "no streamheader field in caps %" GST_PTR_FORMAT, caps);
4046 if (!gst_codec_utils_opus_parse_caps (caps, &rate, &channels,
4047 &mapping_family, &stream_count, &coupled_count,
4049 GST_ERROR_OBJECT (qtmux, "Incomplete Opus caps");
4056 entry.channels = channels;
4057 ext_atom = build_opus_extension (rate, channels, mapping_family,
4058 stream_count, coupled_count, channel_mapping, pre_skip, output_gain);
4064 /* ok, set the pad info accordingly */
4065 qtpad->fourcc = entry.fourcc;
4066 qtpad->sample_size = constant_size;
4068 (SampleTableEntry *) atom_trak_set_audio_type (qtpad->trak,
4069 qtmux->context, &entry,
4070 qtmux->trak_timescale ? qtmux->trak_timescale : entry.sample_rate,
4071 ext_atom, constant_size);
4073 gst_object_unref (qtmux);
4079 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4080 GST_PAD_NAME (pad), caps);
4081 gst_object_unref (qtmux);
4084 refuse_renegotiation:
4086 GST_WARNING_OBJECT (qtmux,
4087 "pad %s refused renegotiation to %" GST_PTR_FORMAT,
4088 GST_PAD_NAME (pad), caps);
4089 gst_object_unref (qtmux);
4095 gst_qt_mux_video_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
4097 GstPad *pad = qtpad->collect.pad;
4098 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
4099 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
4100 GstStructure *structure;
4101 const gchar *mimetype;
4102 gint width, height, depth = -1;
4103 gint framerate_num, framerate_den;
4105 const GValue *value = NULL;
4106 const GstBuffer *codec_data = NULL;
4107 VisualSampleEntry entry = { 0, };
4108 GstQTMuxFormat format;
4109 AtomInfo *ext_atom = NULL;
4110 GList *ext_atom_list = NULL;
4111 gboolean sync = FALSE;
4112 int par_num, par_den;
4114 qtpad->prepare_buf_func = NULL;
4116 /* does not go well to renegotiate stream mid-way, unless
4117 * the old caps are a subset of the new one (this means upstream
4118 * added more info to the caps, as both should be 'fixed' caps) */
4119 if (qtpad->fourcc) {
4120 GstCaps *current_caps;
4122 current_caps = gst_pad_get_current_caps (pad);
4123 g_assert (caps != NULL);
4125 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
4126 gst_caps_unref (current_caps);
4127 goto refuse_renegotiation;
4129 GST_DEBUG_OBJECT (qtmux,
4130 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
4131 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
4132 gst_caps_unref (current_caps);
4135 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
4136 GST_DEBUG_PAD_NAME (pad), caps);
4138 format = qtmux_klass->format;
4139 structure = gst_caps_get_structure (caps, 0);
4140 mimetype = gst_structure_get_name (structure);
4142 /* required parts */
4143 if (!gst_structure_get_int (structure, "width", &width) ||
4144 !gst_structure_get_int (structure, "height", &height))
4149 /* works as a default timebase */
4150 framerate_num = 10000;
4152 gst_structure_get_fraction (structure, "framerate", &framerate_num,
4154 gst_structure_get_int (structure, "depth", &depth);
4155 value = gst_structure_get_value (structure, "codec_data");
4157 codec_data = gst_value_get_buffer (value);
4161 gst_structure_get_fraction (structure, "pixel-aspect-ratio", &par_num,
4164 qtpad->is_out_of_order = FALSE;
4166 /* bring frame numerator into a range that ensures both reasonable resolution
4167 * as well as a fair duration */
4168 rate = qtmux->trak_timescale ?
4169 qtmux->trak_timescale : atom_framerate_to_timescale (framerate_num,
4171 GST_DEBUG_OBJECT (qtmux, "Rate of video track selected: %" G_GUINT32_FORMAT,
4174 /* set common properties */
4175 entry.width = width;
4176 entry.height = height;
4177 entry.par_n = par_num;
4178 entry.par_d = par_den;
4179 /* should be OK according to qt and iso spec, override if really needed */
4180 entry.color_table_id = -1;
4181 entry.frame_count = 1;
4184 /* sync entries by default */
4187 /* now map onto a fourcc, and some extra properties */
4188 if (strcmp (mimetype, "video/x-raw") == 0) {
4189 const gchar *format;
4191 const GstVideoFormatInfo *vinfo;
4193 format = gst_structure_get_string (structure, "format");
4194 fmt = gst_video_format_from_string (format);
4195 vinfo = gst_video_format_get_info (fmt);
4198 case GST_VIDEO_FORMAT_UYVY:
4201 entry.fourcc = FOURCC_2vuy;
4202 entry.depth = depth;
4205 case GST_VIDEO_FORMAT_v210:
4208 entry.fourcc = FOURCC_v210;
4209 entry.depth = depth;
4213 if (GST_VIDEO_FORMAT_INFO_FLAGS (vinfo) & GST_VIDEO_FORMAT_FLAG_RGB) {
4214 entry.fourcc = FOURCC_raw_;
4215 entry.depth = GST_VIDEO_FORMAT_INFO_PSTRIDE (vinfo, 0) * 8;
4220 } else if (strcmp (mimetype, "video/x-h263") == 0) {
4222 if (format == GST_QT_MUX_FORMAT_QT)
4223 entry.fourcc = FOURCC_h263;
4225 entry.fourcc = FOURCC_s263;
4226 ext_atom = build_h263_extension ();
4227 if (ext_atom != NULL)
4228 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4229 } else if (strcmp (mimetype, "video/x-divx") == 0 ||
4230 strcmp (mimetype, "video/mpeg") == 0) {
4233 if (strcmp (mimetype, "video/x-divx") == 0) {
4234 gst_structure_get_int (structure, "divxversion", &version);
4235 version = version == 5 ? 1 : 0;
4237 gst_structure_get_int (structure, "mpegversion", &version);
4238 version = version == 4 ? 1 : 0;
4241 entry.fourcc = FOURCC_mp4v;
4243 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P2,
4244 ESDS_STREAM_TYPE_VISUAL, codec_data, qtpad->avg_bitrate,
4245 qtpad->max_bitrate);
4246 if (ext_atom != NULL)
4247 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4249 GST_WARNING_OBJECT (qtmux, "no codec_data for MPEG4 video; "
4250 "output might not play in Apple QuickTime (try global-headers?)");
4252 } else if (strcmp (mimetype, "video/x-h264") == 0) {
4254 GST_WARNING_OBJECT (qtmux, "no codec_data in h264 caps");
4258 entry.fourcc = FOURCC_avc1;
4260 ext_atom = build_btrt_extension (0, qtpad->avg_bitrate, qtpad->max_bitrate);
4261 if (ext_atom != NULL)
4262 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4263 ext_atom = build_codec_data_extension (FOURCC_avcC, codec_data);
4264 if (ext_atom != NULL)
4265 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4266 } else if (strcmp (mimetype, "video/x-h265") == 0) {
4267 const gchar *format;
4270 GST_WARNING_OBJECT (qtmux, "no codec_data in h265 caps");
4274 format = gst_structure_get_string (structure, "stream-format");
4275 if (strcmp (format, "hvc1") == 0)
4276 entry.fourcc = FOURCC_hvc1;
4277 else if (strcmp (format, "hev1") == 0)
4278 entry.fourcc = FOURCC_hev1;
4280 ext_atom = build_btrt_extension (0, qtpad->avg_bitrate, qtpad->max_bitrate);
4281 if (ext_atom != NULL)
4282 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4284 ext_atom = build_codec_data_extension (FOURCC_hvcC, codec_data);
4285 if (ext_atom != NULL)
4286 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4288 } else if (strcmp (mimetype, "video/x-svq") == 0) {
4290 const GstBuffer *seqh = NULL;
4291 const GValue *seqh_value;
4294 gst_structure_get_int (structure, "svqversion", &version);
4296 entry.fourcc = FOURCC_SVQ3;
4300 seqh_value = gst_structure_get_value (structure, "seqh");
4302 seqh = gst_value_get_buffer (seqh_value);
4303 ext_atom = build_SMI_atom (seqh);
4305 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4308 /* we need to add the gamma anyway because quicktime might crash
4309 * when it doesn't find it */
4310 if (!gst_structure_get_double (structure, "applied-gamma", &gamma)) {
4311 /* it seems that using 0 here makes it ignored */
4314 ext_atom = build_gama_atom (gamma);
4316 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4318 GST_WARNING_OBJECT (qtmux, "SVQ version %d not supported. Please file "
4319 "a bug at http://bugzilla.gnome.org", version);
4321 } else if (strcmp (mimetype, "video/x-dv") == 0) {
4323 gboolean pal = TRUE;
4326 if (framerate_num != 25 || framerate_den != 1)
4328 gst_structure_get_int (structure, "dvversion", &version);
4329 /* fall back to typical one */
4335 entry.fourcc = FOURCC_dvcp;
4337 entry.fourcc = FOURCC_dvc_;
4341 entry.fourcc = FOURCC_dv5p;
4343 entry.fourcc = FOURCC_dv5n;
4346 GST_WARNING_OBJECT (qtmux, "unrecognized dv version");
4349 } else if (strcmp (mimetype, "image/jpeg") == 0) {
4350 entry.fourcc = FOURCC_jpeg;
4352 } else if (strcmp (mimetype, "image/x-j2c") == 0 ||
4353 strcmp (mimetype, "image/x-jpc") == 0) {
4354 const gchar *colorspace;
4355 const GValue *cmap_array;
4356 const GValue *cdef_array;
4359 if (strcmp (mimetype, "image/x-jpc") == 0) {
4360 qtpad->prepare_buf_func = gst_qt_mux_prepare_jpc_buffer;
4363 gst_structure_get_int (structure, "num-components", &ncomp);
4364 cmap_array = gst_structure_get_value (structure, "component-map");
4365 cdef_array = gst_structure_get_value (structure, "channel-definitions");
4368 entry.fourcc = FOURCC_mjp2;
4371 colorspace = gst_structure_get_string (structure, "colorspace");
4374 build_jp2h_extension (width, height, colorspace, ncomp, cmap_array,
4375 cdef_array)) != NULL) {
4376 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4378 ext_atom = build_jp2x_extension (codec_data);
4380 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4382 GST_DEBUG_OBJECT (qtmux, "missing or invalid fourcc in jp2 caps");
4385 } else if (strcmp (mimetype, "video/x-vp8") == 0) {
4386 entry.fourcc = FOURCC_VP80;
4388 } else if (strcmp (mimetype, "video/x-dirac") == 0) {
4389 entry.fourcc = FOURCC_drac;
4390 } else if (strcmp (mimetype, "video/x-qt-part") == 0) {
4393 gst_structure_get_uint (structure, "format", &fourcc);
4394 entry.fourcc = fourcc;
4395 } else if (strcmp (mimetype, "video/x-mp4-part") == 0) {
4398 gst_structure_get_uint (structure, "format", &fourcc);
4399 entry.fourcc = fourcc;
4400 } else if (strcmp (mimetype, "video/x-prores") == 0) {
4401 const gchar *variant;
4403 variant = gst_structure_get_string (structure, "variant");
4404 if (!variant || !g_strcmp0 (variant, "standard"))
4405 entry.fourcc = FOURCC_apcn;
4406 else if (!g_strcmp0 (variant, "lt"))
4407 entry.fourcc = FOURCC_apcs;
4408 else if (!g_strcmp0 (variant, "hq"))
4409 entry.fourcc = FOURCC_apch;
4410 else if (!g_strcmp0 (variant, "proxy"))
4411 entry.fourcc = FOURCC_apco;
4412 else if (!g_strcmp0 (variant, "4444"))
4413 entry.fourcc = FOURCC_ap4h;
4414 else if (!g_strcmp0 (variant, "4444xq"))
4415 entry.fourcc = FOURCC_ap4x;
4419 if (!qtmux->interleave_time_set)
4420 qtmux->interleave_time = 500 * GST_MSECOND;
4421 if (!qtmux->interleave_bytes_set)
4422 qtmux->interleave_bytes = width > 720 ? 4 * 1024 * 1024 : 2 * 1024 * 1024;
4423 } else if (strcmp (mimetype, "video/x-cineform") == 0) {
4424 entry.fourcc = FOURCC_cfhd;
4431 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT ||
4432 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) {
4434 GstVideoColorimetry colorimetry;
4436 s = gst_structure_get_string (structure, "colorimetry");
4437 if (s && gst_video_colorimetry_from_string (&colorimetry, s)) {
4439 build_colr_extension (&colorimetry,
4440 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4);
4442 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4446 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT
4447 || strcmp (mimetype, "image/x-j2c") == 0
4448 || strcmp (mimetype, "image/x-jpc") == 0) {
4450 GstVideoInterlaceMode interlace_mode;
4451 GstVideoFieldOrder field_order;
4454 if (strcmp (mimetype, "image/x-j2c") == 0 ||
4455 strcmp (mimetype, "image/x-jpc") == 0) {
4458 gst_structure_get_int (structure, "fields", &fields);
4461 s = gst_structure_get_string (structure, "interlace-mode");
4463 interlace_mode = gst_video_interlace_mode_from_string (s);
4467 1) ? GST_VIDEO_INTERLACE_MODE_PROGRESSIVE :
4468 GST_VIDEO_INTERLACE_MODE_MIXED;
4470 field_order = GST_VIDEO_FIELD_ORDER_UNKNOWN;
4471 if (interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED) {
4472 s = gst_structure_get_string (structure, "field-order");
4474 field_order = gst_video_field_order_from_string (s);
4477 ext_atom = build_fiel_extension (interlace_mode, field_order);
4479 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4483 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT &&
4484 width > 640 && width <= 1052 && height >= 480 && height <= 576) {
4485 /* The 'clap' extension is also defined for MP4 but inventing values in
4486 * general seems a bit tricky for this one. We only write it for
4487 * SD resolution in MOV, where it is a requirement.
4488 * The same goes for the 'tapt' extension, just that it is not defined for
4489 * MP4 and only for MOV
4491 gint dar_num, dar_den;
4492 gint clef_width, clef_height, prof_width;
4493 gint clap_width_n, clap_width_d, clap_height;
4497 /* First, guess display aspect ratio based on pixel aspect ratio,
4498 * width and height. We assume that display aspect ratio is either
4501 approx_dar = (gdouble) (width * par_num) / (height * par_den);
4502 if (approx_dar > 11.0 / 9 && approx_dar < 14.0 / 9) {
4505 } else if (approx_dar > 15.0 / 9 && approx_dar < 18.0 / 9) {
4509 dar_num = width * par_num;
4510 dar_den = height * par_den;
4511 cdiv = gst_util_greatest_common_divisor (dar_num, dar_den);
4516 /* Then, calculate clean-aperture values (clap and clef)
4517 * using the guessed DAR.
4519 clef_height = clap_height = (height == 486 ? 480 : height);
4520 clef_width = gst_util_uint64_scale (clef_height,
4521 dar_num * G_GUINT64_CONSTANT (65536), dar_den);
4522 prof_width = gst_util_uint64_scale (width,
4523 par_num * G_GUINT64_CONSTANT (65536), par_den);
4524 clap_width_n = clap_height * dar_num * par_den;
4525 clap_width_d = dar_den * par_num;
4526 cdiv = gst_util_greatest_common_divisor (clap_width_n, clap_width_d);
4527 clap_width_n /= cdiv;
4528 clap_width_d /= cdiv;
4530 ext_atom = build_tapt_extension (clef_width, clef_height << 16, prof_width,
4531 height << 16, width << 16, height << 16);
4532 qtpad->trak->tapt = ext_atom;
4534 ext_atom = build_clap_extension (clap_width_n, clap_width_d,
4535 clap_height, 1, 0, 1, 0, 1);
4537 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4540 /* ok, set the pad info accordingly */
4541 qtpad->fourcc = entry.fourcc;
4544 (SampleTableEntry *) atom_trak_set_video_type (qtpad->trak,
4545 qtmux->context, &entry, rate, ext_atom_list);
4546 if (strcmp (mimetype, "video/x-prores") == 0) {
4547 SampleTableEntryMP4V *mp4v = (SampleTableEntryMP4V *) qtpad->trak_ste;
4548 const gchar *compressor = NULL;
4549 mp4v->spatial_quality = 0x3FF;
4550 mp4v->temporal_quality = 0;
4551 mp4v->vendor = FOURCC_appl;
4552 mp4v->horizontal_resolution = 72 << 16;
4553 mp4v->vertical_resolution = 72 << 16;
4554 mp4v->depth = (entry.fourcc == FOURCC_ap4h
4555 || entry.fourcc == FOURCC_ap4x) ? 32 : 24;
4557 /* Set compressor name, required by some software */
4558 switch (entry.fourcc) {
4560 compressor = "Apple ProRes 422";
4563 compressor = "Apple ProRes 422 LT";
4566 compressor = "Apple ProRes 422 HQ";
4569 compressor = "Apple ProRes 422 Proxy";
4572 compressor = "Apple ProRes 4444";
4575 compressor = "Apple ProRes 4444 XQ";
4579 strcpy ((gchar *) mp4v->compressor + 1, compressor);
4580 mp4v->compressor[0] = strlen (compressor);
4584 gst_object_unref (qtmux);
4590 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4591 GST_PAD_NAME (pad), caps);
4592 gst_object_unref (qtmux);
4595 refuse_renegotiation:
4597 GST_WARNING_OBJECT (qtmux,
4598 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4600 gst_object_unref (qtmux);
4606 gst_qt_mux_subtitle_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
4608 GstPad *pad = qtpad->collect.pad;
4609 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
4610 GstStructure *structure;
4611 SubtitleSampleEntry entry = { 0, };
4613 /* does not go well to renegotiate stream mid-way, unless
4614 * the old caps are a subset of the new one (this means upstream
4615 * added more info to the caps, as both should be 'fixed' caps) */
4616 if (qtpad->fourcc) {
4617 GstCaps *current_caps;
4619 current_caps = gst_pad_get_current_caps (pad);
4620 g_assert (caps != NULL);
4622 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
4623 gst_caps_unref (current_caps);
4624 goto refuse_renegotiation;
4626 GST_DEBUG_OBJECT (qtmux,
4627 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
4628 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
4629 gst_caps_unref (current_caps);
4632 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
4633 GST_DEBUG_PAD_NAME (pad), caps);
4635 /* subtitles default */
4636 subtitle_sample_entry_init (&entry);
4637 qtpad->is_out_of_order = FALSE;
4638 qtpad->sync = FALSE;
4639 qtpad->sparse = TRUE;
4640 qtpad->prepare_buf_func = NULL;
4642 structure = gst_caps_get_structure (caps, 0);
4644 if (gst_structure_has_name (structure, "text/x-raw")) {
4645 const gchar *format = gst_structure_get_string (structure, "format");
4646 if (format && strcmp (format, "utf8") == 0) {
4647 entry.fourcc = FOURCC_tx3g;
4648 qtpad->prepare_buf_func = gst_qt_mux_prepare_tx3g_buffer;
4649 qtpad->create_empty_buffer = gst_qt_mux_create_empty_tx3g_buffer;
4656 qtpad->fourcc = entry.fourcc;
4658 (SampleTableEntry *) atom_trak_set_subtitle_type (qtpad->trak,
4659 qtmux->context, &entry);
4661 gst_object_unref (qtmux);
4667 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4668 GST_PAD_NAME (pad), caps);
4669 gst_object_unref (qtmux);
4672 refuse_renegotiation:
4674 GST_WARNING_OBJECT (qtmux,
4675 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4677 gst_object_unref (qtmux);
4683 gst_qt_mux_sink_event (GstCollectPads * pads, GstCollectData * data,
4684 GstEvent * event, gpointer user_data)
4687 guint32 avg_bitrate = 0, max_bitrate = 0;
4688 GstPad *pad = data->pad;
4689 gboolean ret = TRUE;
4691 qtmux = GST_QT_MUX_CAST (user_data);
4692 switch (GST_EVENT_TYPE (event)) {
4693 case GST_EVENT_CAPS:
4696 GstQTPad *collect_pad;
4698 gst_event_parse_caps (event, &caps);
4700 /* find stream data */
4701 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4702 g_assert (collect_pad);
4703 g_assert (collect_pad->set_caps);
4705 ret = collect_pad->set_caps (collect_pad, caps);
4706 gst_event_unref (event);
4710 case GST_EVENT_TAG:{
4712 GstTagSetter *setter = GST_TAG_SETTER (qtmux);
4713 GstTagMergeMode mode;
4715 GstQTPad *collect_pad;
4717 GST_OBJECT_LOCK (qtmux);
4718 mode = gst_tag_setter_get_tag_merge_mode (setter);
4719 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4721 gst_event_parse_tag (event, &list);
4722 GST_DEBUG_OBJECT (qtmux, "received tag event on pad %s:%s : %"
4723 GST_PTR_FORMAT, GST_DEBUG_PAD_NAME (pad), list);
4725 if (gst_tag_list_get_scope (list) == GST_TAG_SCOPE_GLOBAL) {
4726 gst_tag_setter_merge_tags (setter, list, mode);
4727 qtmux->tags_changed = TRUE;
4729 if (!collect_pad->tags)
4730 collect_pad->tags = gst_tag_list_new_empty ();
4731 gst_tag_list_insert (collect_pad->tags, list, mode);
4732 collect_pad->tags_changed = TRUE;
4734 GST_OBJECT_UNLOCK (qtmux);
4736 if (gst_tag_list_get_uint (list, GST_TAG_BITRATE, &avg_bitrate) |
4737 gst_tag_list_get_uint (list, GST_TAG_MAXIMUM_BITRATE, &max_bitrate)) {
4738 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4741 if (avg_bitrate > 0 && avg_bitrate < G_MAXUINT32)
4742 qtpad->avg_bitrate = avg_bitrate;
4743 if (max_bitrate > 0 && max_bitrate < G_MAXUINT32)
4744 qtpad->max_bitrate = max_bitrate;
4747 if (gst_tag_list_get_string (list, GST_TAG_LANGUAGE_CODE, &code)) {
4748 const char *iso_code = gst_tag_get_language_code_iso_639_2T (code);
4750 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4753 /* https://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html */
4754 qtpad->trak->mdia.mdhd.language_code =
4755 (iso_code[0] - 0x60) * 0x400 + (iso_code[1] - 0x60) * 0x20 +
4756 (iso_code[2] - 0x60);
4762 gst_event_unref (event);
4772 return gst_collect_pads_event_default (pads, data, event, FALSE);
4778 gst_qt_mux_release_pad (GstElement * element, GstPad * pad)
4780 GstQTMux *mux = GST_QT_MUX_CAST (element);
4783 GST_DEBUG_OBJECT (element, "Releasing %s:%s", GST_DEBUG_PAD_NAME (pad));
4785 for (walk = mux->sinkpads; walk; walk = g_slist_next (walk)) {
4786 GstQTPad *qtpad = (GstQTPad *) walk->data;
4787 GST_DEBUG ("Checking %s:%s", GST_DEBUG_PAD_NAME (qtpad->collect.pad));
4788 if (qtpad->collect.pad == pad) {
4789 /* this is it, remove */
4790 mux->sinkpads = g_slist_delete_link (mux->sinkpads, walk);
4791 gst_element_remove_pad (element, pad);
4796 if (mux->current_pad && mux->current_pad->collect.pad == pad) {
4797 mux->current_pad = NULL;
4798 mux->current_chunk_size = 0;
4799 mux->current_chunk_duration = 0;
4802 gst_collect_pads_remove_pad (mux->collect, pad);
4804 if (mux->sinkpads == NULL) {
4805 /* No more outstanding request pads, reset our counters */
4806 mux->video_pads = 0;
4807 mux->audio_pads = 0;
4808 mux->subtitle_pads = 0;
4813 gst_qt_mux_request_new_pad (GstElement * element,
4814 GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps)
4816 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
4817 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
4818 GstQTPad *collect_pad;
4820 GstQTPadSetCapsFunc setcaps_func;
4823 gboolean lock = TRUE;
4825 if (templ->direction != GST_PAD_SINK)
4826 goto wrong_direction;
4828 if (qtmux->state > GST_QT_MUX_STATE_STARTED)
4831 if (templ == gst_element_class_get_pad_template (klass, "audio_%u")) {
4832 setcaps_func = gst_qt_mux_audio_sink_set_caps;
4833 if (req_name != NULL && sscanf (req_name, "audio_%u", &pad_id) == 1) {
4834 name = g_strdup (req_name);
4836 name = g_strdup_printf ("audio_%u", qtmux->audio_pads++);
4838 } else if (templ == gst_element_class_get_pad_template (klass, "video_%u")) {
4839 setcaps_func = gst_qt_mux_video_sink_set_caps;
4840 if (req_name != NULL && sscanf (req_name, "video_%u", &pad_id) == 1) {
4841 name = g_strdup (req_name);
4843 name = g_strdup_printf ("video_%u", qtmux->video_pads++);
4845 } else if (templ == gst_element_class_get_pad_template (klass, "subtitle_%u")) {
4846 setcaps_func = gst_qt_mux_subtitle_sink_set_caps;
4847 if (req_name != NULL && sscanf (req_name, "subtitle_%u", &pad_id) == 1) {
4848 name = g_strdup (req_name);
4850 name = g_strdup_printf ("subtitle_%u", qtmux->subtitle_pads++);
4854 goto wrong_template;
4856 GST_DEBUG_OBJECT (qtmux, "Requested pad: %s", name);
4858 /* create pad and add to collections */
4859 newpad = gst_pad_new_from_template (templ, name);
4861 collect_pad = (GstQTPad *)
4862 gst_collect_pads_add_pad (qtmux->collect, newpad, sizeof (GstQTPad),
4863 (GstCollectDataDestroyNotify) (gst_qt_mux_pad_reset), lock);
4865 gst_qt_mux_pad_reset (collect_pad);
4866 collect_pad->trak = atom_trak_new (qtmux->context);
4867 atom_moov_add_trak (qtmux->moov, collect_pad->trak);
4869 qtmux->sinkpads = g_slist_append (qtmux->sinkpads, collect_pad);
4871 /* set up pad functions */
4872 collect_pad->set_caps = setcaps_func;
4874 gst_pad_set_active (newpad, TRUE);
4875 gst_element_add_pad (element, newpad);
4882 GST_WARNING_OBJECT (qtmux, "Request pad that is not a SINK pad.");
4887 GST_WARNING_OBJECT (qtmux, "Not providing request pad after stream start.");
4892 GST_WARNING_OBJECT (qtmux, "This is not our template!");
4898 gst_qt_mux_get_property (GObject * object,
4899 guint prop_id, GValue * value, GParamSpec * pspec)
4901 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4903 GST_OBJECT_LOCK (qtmux);
4905 case PROP_MOVIE_TIMESCALE:
4906 g_value_set_uint (value, qtmux->timescale);
4908 case PROP_TRAK_TIMESCALE:
4909 g_value_set_uint (value, qtmux->trak_timescale);
4912 g_value_set_boolean (value, qtmux->guess_pts);
4914 #ifndef GST_REMOVE_DEPRECATED
4915 case PROP_DTS_METHOD:
4916 g_value_set_enum (value, qtmux->dts_method);
4919 case PROP_FAST_START:
4920 g_value_set_boolean (value, qtmux->fast_start);
4922 case PROP_FAST_START_TEMP_FILE:
4923 g_value_set_string (value, qtmux->fast_start_file_path);
4925 case PROP_MOOV_RECOV_FILE:
4926 g_value_set_string (value, qtmux->moov_recov_file_path);
4928 case PROP_FRAGMENT_DURATION:
4929 g_value_set_uint (value, qtmux->fragment_duration);
4931 case PROP_STREAMABLE:
4932 g_value_set_boolean (value, qtmux->streamable);
4934 case PROP_RESERVED_MAX_DURATION:
4935 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4937 case PROP_RESERVED_DURATION_REMAINING:
4938 if (qtmux->reserved_duration_remaining == GST_CLOCK_TIME_NONE)
4939 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4941 GstClockTime remaining = qtmux->reserved_duration_remaining;
4943 /* Report the remaining space as the calculated remaining, minus
4944 * however much we've muxed since the last update */
4945 if (remaining > qtmux->muxed_since_last_update)
4946 remaining -= qtmux->muxed_since_last_update;
4949 GST_LOG_OBJECT (qtmux, "reserved duration remaining - reporting %"
4950 G_GUINT64_FORMAT "(%" G_GUINT64_FORMAT " - %" G_GUINT64_FORMAT,
4951 remaining, qtmux->reserved_duration_remaining,
4952 qtmux->muxed_since_last_update);
4953 g_value_set_uint64 (value, remaining);
4956 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4957 g_value_set_uint64 (value, qtmux->reserved_moov_update_period);
4959 case PROP_RESERVED_BYTES_PER_SEC:
4960 g_value_set_uint (value, qtmux->reserved_bytes_per_sec_per_trak);
4962 case PROP_INTERLEAVE_BYTES:
4963 g_value_set_uint64 (value, qtmux->interleave_bytes);
4965 case PROP_INTERLEAVE_TIME:
4966 g_value_set_uint64 (value, qtmux->interleave_time);
4968 case PROP_MAX_RAW_AUDIO_DRIFT:
4969 g_value_set_uint64 (value, qtmux->max_raw_audio_drift);
4972 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4975 GST_OBJECT_UNLOCK (qtmux);
4979 gst_qt_mux_generate_fast_start_file_path (GstQTMux * qtmux)
4983 g_free (qtmux->fast_start_file_path);
4984 qtmux->fast_start_file_path = NULL;
4986 tmp = g_strdup_printf ("%s%d", "qtmux", g_random_int ());
4987 qtmux->fast_start_file_path = g_build_filename (g_get_tmp_dir (), tmp, NULL);
4992 gst_qt_mux_set_property (GObject * object,
4993 guint prop_id, const GValue * value, GParamSpec * pspec)
4995 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4997 GST_OBJECT_LOCK (qtmux);
4999 case PROP_MOVIE_TIMESCALE:
5000 qtmux->timescale = g_value_get_uint (value);
5002 case PROP_TRAK_TIMESCALE:
5003 qtmux->trak_timescale = g_value_get_uint (value);
5006 qtmux->guess_pts = g_value_get_boolean (value);
5008 #ifndef GST_REMOVE_DEPRECATED
5009 case PROP_DTS_METHOD:
5010 qtmux->dts_method = g_value_get_enum (value);
5013 case PROP_FAST_START:
5014 qtmux->fast_start = g_value_get_boolean (value);
5016 case PROP_FAST_START_TEMP_FILE:
5017 g_free (qtmux->fast_start_file_path);
5018 qtmux->fast_start_file_path = g_value_dup_string (value);
5019 /* NULL means to generate a random one */
5020 if (!qtmux->fast_start_file_path) {
5021 gst_qt_mux_generate_fast_start_file_path (qtmux);
5024 case PROP_MOOV_RECOV_FILE:
5025 g_free (qtmux->moov_recov_file_path);
5026 qtmux->moov_recov_file_path = g_value_dup_string (value);
5028 case PROP_FRAGMENT_DURATION:
5029 qtmux->fragment_duration = g_value_get_uint (value);
5031 case PROP_STREAMABLE:{
5032 GstQTMuxClass *qtmux_klass =
5033 (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
5034 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML) {
5035 qtmux->streamable = g_value_get_boolean (value);
5039 case PROP_RESERVED_MAX_DURATION:
5040 qtmux->reserved_max_duration = g_value_get_uint64 (value);
5042 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
5043 qtmux->reserved_moov_update_period = g_value_get_uint64 (value);
5045 case PROP_RESERVED_BYTES_PER_SEC:
5046 qtmux->reserved_bytes_per_sec_per_trak = g_value_get_uint (value);
5048 case PROP_INTERLEAVE_BYTES:
5049 qtmux->interleave_bytes = g_value_get_uint64 (value);
5050 qtmux->interleave_bytes_set = TRUE;
5052 case PROP_INTERLEAVE_TIME:
5053 qtmux->interleave_time = g_value_get_uint64 (value);
5054 qtmux->interleave_time_set = TRUE;
5056 case PROP_MAX_RAW_AUDIO_DRIFT:
5057 qtmux->max_raw_audio_drift = g_value_get_uint64 (value);
5060 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
5063 GST_OBJECT_UNLOCK (qtmux);
5066 static GstStateChangeReturn
5067 gst_qt_mux_change_state (GstElement * element, GstStateChange transition)
5069 GstStateChangeReturn ret;
5070 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
5072 switch (transition) {
5073 case GST_STATE_CHANGE_NULL_TO_READY:
5075 case GST_STATE_CHANGE_READY_TO_PAUSED:
5076 gst_collect_pads_start (qtmux->collect);
5077 qtmux->state = GST_QT_MUX_STATE_STARTED;
5079 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
5081 case GST_STATE_CHANGE_PAUSED_TO_READY:
5082 gst_collect_pads_stop (qtmux->collect);
5088 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
5090 switch (transition) {
5091 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
5093 case GST_STATE_CHANGE_PAUSED_TO_READY:
5094 gst_qt_mux_reset (qtmux, TRUE);
5096 case GST_STATE_CHANGE_READY_TO_NULL:
5106 gst_qt_mux_register (GstPlugin * plugin)
5108 GTypeInfo typeinfo = {
5109 sizeof (GstQTMuxClass),
5110 (GBaseInitFunc) gst_qt_mux_base_init,
5112 (GClassInitFunc) gst_qt_mux_class_init,
5117 (GInstanceInitFunc) gst_qt_mux_init,
5119 static const GInterfaceInfo tag_setter_info = {
5122 static const GInterfaceInfo tag_xmp_writer_info = {
5125 static const GInterfaceInfo preset_info = {
5129 GstQTMuxFormat format;
5130 GstQTMuxClassParams *params;
5133 GST_DEBUG_CATEGORY_INIT (gst_qt_mux_debug, "qtmux", 0, "QT Muxer");
5135 GST_LOG ("Registering muxers");
5138 GstQTMuxFormatProp *prop;
5139 GstCaps *subtitle_caps;
5141 prop = &gst_qt_mux_format_list[i];
5142 format = prop->format;
5143 if (format == GST_QT_MUX_FORMAT_NONE)
5146 /* create a cache for these properties */
5147 params = g_new0 (GstQTMuxClassParams, 1);
5148 params->prop = prop;
5149 params->src_caps = gst_static_caps_get (&prop->src_caps);
5150 params->video_sink_caps = gst_static_caps_get (&prop->video_sink_caps);
5151 params->audio_sink_caps = gst_static_caps_get (&prop->audio_sink_caps);
5152 subtitle_caps = gst_static_caps_get (&prop->subtitle_sink_caps);
5153 if (!gst_caps_is_equal (subtitle_caps, GST_CAPS_NONE)) {
5154 params->subtitle_sink_caps = subtitle_caps;
5156 gst_caps_unref (subtitle_caps);
5159 /* create the type now */
5160 type = g_type_register_static (GST_TYPE_ELEMENT, prop->type_name, &typeinfo,
5162 g_type_set_qdata (type, GST_QT_MUX_PARAMS_QDATA, (gpointer) params);
5163 g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, &tag_setter_info);
5164 g_type_add_interface_static (type, GST_TYPE_TAG_XMP_WRITER,
5165 &tag_xmp_writer_info);
5166 g_type_add_interface_static (type, GST_TYPE_PRESET, &preset_info);
5168 if (!gst_element_register (plugin, prop->name, prop->rank, type))
5174 GST_LOG ("Finished registering muxers");
5176 /* FIXME: ideally classification tag should be added and
5177 registered in gstreamer core gsttaglist
5180 GST_LOG ("Registering tags");
5182 gst_tag_register (GST_TAG_3GP_CLASSIFICATION, GST_TAG_FLAG_META,
5183 G_TYPE_STRING, GST_TAG_3GP_CLASSIFICATION, "content classification",
5184 gst_tag_merge_use_first);
5186 GST_LOG ("Finished registering tags");