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
151 * The basic building blocks of MP4 files are:
152 * - an 'ftyp' box at the very start
153 * - an 'mdat' box which contains the raw audio/video/subtitle data;
154 * this is just a bunch of bytes, completely unframed and possibly
155 * unordered with no additional meta-information
156 * - a 'moov' box that contains information about the different streams
157 * and what they contain, as well as sample tables for each stream
158 * that tell the demuxer where in the mdat box each buffer/sample is
159 * and what its duration/timestamp etc. is, and whether it's a
161 * Additionally, fragmented MP4 works by writing chunks of data in
162 * pairs of 'moof' and 'mdat' boxes:
163 * - 'moof' boxes, header preceding each mdat fragment describing the
164 * contents, like a moov but only for that fragment.
165 * - a 'mfra' box for Fragmented MP4, which is written at the end and
166 * contains a summary of all fragments and seek tables.
168 * Currently mp4mux can work in 4 different modes / generate 4 types
169 * of output files/streams:
171 * - Normal mp4: mp4mux will write a little ftyp identifier at the
172 * beginning, then start an mdat box into which it will write all the
173 * sample data. At EOS it will then write the moov header with track
174 * headers and sample tables at the end of the file, and rewrite the
175 * start of the file to fix up the mdat box size at the beginning.
176 * It has to wait for EOS to write the moov (which includes the
177 * sample tables) because it doesn't know how much space those
178 * tables will be. The output downstream must be seekable to rewrite
179 * the mdat box at EOS.
181 * - Fragmented mp4: moov header with track headers at start
182 * but no sample table, followed by N fragments, each containing
183 * track headers with sample tables followed by some data. Downstream
184 * does not need to be seekable if the 'streamable' flag is TRUE,
185 * as the final mfra and total duration will be omitted.
187 * - Fast-start mp4: the goal here is to create a file where the moov
188 * headers are at the beginning; what mp4mux will do is write all
189 * sample data into a temp file and build moov header plus sample
190 * tables in memory and then when EOS comes, it will push out the
191 * moov header plus sample tables at the beginning, followed by the
192 * mdat sample data at the end which is read in from the temp file
193 * Files created in this mode are better for streaming over the
194 * network, since the client doesn't have to seek to the end of the
195 * file to get the headers, but it requires copying all sample data
196 * out of the temp file at EOS, which can be expensive. Downstream does
197 * not need to be seekable, because of the use of the temp file.
199 * - Robust Muxing mode: In this mode, qtmux uses the reserved-max-duration
200 * and reserved-moov-update-period properties to reserve free space
201 * at the start of the file and periodically write the MOOV atom out
202 * to it. That means that killing the muxing at any point still
203 * results in a playable file, at the cost of wasting some amount of
204 * free space at the start of file. The approximate recording duration
205 * has to be known in advance to estimate how much free space to reserve
206 * for the moov, and the downstream must be seekable.
207 * If the moov header grows larger than the reserved space, an error
208 * is generated - so it's better to over-estimate the amount of space
209 * to reserve. To ensure the file is playable at any point, the moov
210 * is updated using a 'ping-pong' strategy, so the output is never in
214 #ifndef GST_REMOVE_DEPRECATED
223 gst_qt_mux_dts_method_get_type (void)
225 static GType gst_qt_mux_dts_method = 0;
227 if (!gst_qt_mux_dts_method) {
228 static const GEnumValue dts_methods[] = {
229 {DTS_METHOD_DD, "delta/duration", "dd"},
230 {DTS_METHOD_REORDER, "reorder", "reorder"},
231 {DTS_METHOD_ASC, "ascending", "asc"},
235 gst_qt_mux_dts_method =
236 g_enum_register_static ("GstQTMuxDtsMethods", dts_methods);
239 return gst_qt_mux_dts_method;
242 #define GST_TYPE_QT_MUX_DTS_METHOD \
243 (gst_qt_mux_dts_method_get_type ())
246 /* QTMux signals and args */
256 PROP_MOVIE_TIMESCALE,
259 PROP_FAST_START_TEMP_FILE,
260 PROP_MOOV_RECOV_FILE,
261 PROP_FRAGMENT_DURATION,
263 PROP_RESERVED_MAX_DURATION,
264 PROP_RESERVED_DURATION_REMAINING,
265 PROP_RESERVED_MOOV_UPDATE_PERIOD,
266 PROP_RESERVED_BYTES_PER_SEC,
267 #ifndef GST_REMOVE_DEPRECATED
271 PROP_INTERLEAVE_BYTES,
272 PROP_INTERLEAVE_TIME,
275 /* some spare for header size as well */
276 #define MDAT_LARGE_FILE_LIMIT ((guint64) 1024 * 1024 * 1024 * 2)
278 #define DEFAULT_MOVIE_TIMESCALE 0
279 #define DEFAULT_TRAK_TIMESCALE 0
280 #define DEFAULT_DO_CTTS TRUE
281 #define DEFAULT_FAST_START FALSE
282 #define DEFAULT_FAST_START_TEMP_FILE NULL
283 #define DEFAULT_MOOV_RECOV_FILE NULL
284 #define DEFAULT_FRAGMENT_DURATION 0
285 #define DEFAULT_STREAMABLE TRUE
286 #ifndef GST_REMOVE_DEPRECATED
287 #define DEFAULT_DTS_METHOD DTS_METHOD_REORDER
289 #define DEFAULT_RESERVED_MAX_DURATION GST_CLOCK_TIME_NONE
290 #define DEFAULT_RESERVED_MOOV_UPDATE_PERIOD GST_CLOCK_TIME_NONE
291 #define DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK 550
292 #define DEFAULT_INTERLEAVE_BYTES 0
293 #define DEFAULT_INTERLEAVE_TIME 250*GST_MSECOND
295 static void gst_qt_mux_finalize (GObject * object);
297 static GstStateChangeReturn gst_qt_mux_change_state (GstElement * element,
298 GstStateChange transition);
300 /* property functions */
301 static void gst_qt_mux_set_property (GObject * object,
302 guint prop_id, const GValue * value, GParamSpec * pspec);
303 static void gst_qt_mux_get_property (GObject * object,
304 guint prop_id, GValue * value, GParamSpec * pspec);
307 static GstPad *gst_qt_mux_request_new_pad (GstElement * element,
308 GstPadTemplate * templ, const gchar * name, const GstCaps * caps);
309 static void gst_qt_mux_release_pad (GstElement * element, GstPad * pad);
312 static gboolean gst_qt_mux_sink_event (GstCollectPads * pads,
313 GstCollectData * data, GstEvent * event, gpointer user_data);
315 static GstFlowReturn gst_qt_mux_collected (GstCollectPads * pads,
317 static GstFlowReturn gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad,
321 gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux);
323 static GstElementClass *parent_class = NULL;
326 gst_qt_mux_base_init (gpointer g_class)
328 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
329 GstQTMuxClass *klass = (GstQTMuxClass *) g_class;
330 GstQTMuxClassParams *params;
331 GstPadTemplate *videosinktempl, *audiosinktempl, *subtitlesinktempl;
332 GstPadTemplate *srctempl;
333 gchar *longname, *description;
336 (GstQTMuxClassParams *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (g_class),
337 GST_QT_MUX_PARAMS_QDATA);
338 g_assert (params != NULL);
340 /* construct the element details struct */
341 longname = g_strdup_printf ("%s Muxer", params->prop->long_name);
342 description = g_strdup_printf ("Multiplex audio and video into a %s file",
343 params->prop->long_name);
344 gst_element_class_set_static_metadata (element_class, longname,
345 "Codec/Muxer", description,
346 "Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>");
348 g_free (description);
351 srctempl = gst_pad_template_new ("src", GST_PAD_SRC,
352 GST_PAD_ALWAYS, params->src_caps);
353 gst_element_class_add_pad_template (element_class, srctempl);
355 if (params->audio_sink_caps) {
356 audiosinktempl = gst_pad_template_new ("audio_%u",
357 GST_PAD_SINK, GST_PAD_REQUEST, params->audio_sink_caps);
358 gst_element_class_add_pad_template (element_class, audiosinktempl);
361 if (params->video_sink_caps) {
362 videosinktempl = gst_pad_template_new ("video_%u",
363 GST_PAD_SINK, GST_PAD_REQUEST, params->video_sink_caps);
364 gst_element_class_add_pad_template (element_class, videosinktempl);
367 if (params->subtitle_sink_caps) {
368 subtitlesinktempl = gst_pad_template_new ("subtitle_%u",
369 GST_PAD_SINK, GST_PAD_REQUEST, params->subtitle_sink_caps);
370 gst_element_class_add_pad_template (element_class, subtitlesinktempl);
373 klass->format = params->prop->format;
377 gst_qt_mux_class_init (GstQTMuxClass * klass)
379 GObjectClass *gobject_class;
380 GstElementClass *gstelement_class;
381 GParamFlags streamable_flags;
382 const gchar *streamable_desc;
384 #define STREAMABLE_DESC "If set to true, the output should be as if it is to "\
385 "be streamed and hence no indexes written or duration written."
387 gobject_class = (GObjectClass *) klass;
388 gstelement_class = (GstElementClass *) klass;
390 parent_class = g_type_class_peek_parent (klass);
392 gobject_class->finalize = gst_qt_mux_finalize;
393 gobject_class->get_property = gst_qt_mux_get_property;
394 gobject_class->set_property = gst_qt_mux_set_property;
396 streamable_flags = G_PARAM_READWRITE | G_PARAM_CONSTRUCT;
397 if (klass->format == GST_QT_MUX_FORMAT_ISML) {
398 streamable_desc = STREAMABLE_DESC;
399 streamable = DEFAULT_STREAMABLE;
402 STREAMABLE_DESC " (DEPRECATED, only valid for fragmented MP4)";
403 streamable_flags |= G_PARAM_DEPRECATED;
407 g_object_class_install_property (gobject_class, PROP_MOVIE_TIMESCALE,
408 g_param_spec_uint ("movie-timescale", "Movie timescale",
409 "Timescale to use in the movie (units per second, 0 == default)",
410 0, G_MAXUINT32, DEFAULT_MOVIE_TIMESCALE,
411 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
412 g_object_class_install_property (gobject_class, PROP_TRAK_TIMESCALE,
413 g_param_spec_uint ("trak-timescale", "Track timescale",
414 "Timescale to use for the tracks (units per second, 0 is automatic)",
415 0, G_MAXUINT32, DEFAULT_TRAK_TIMESCALE,
416 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
417 g_object_class_install_property (gobject_class, PROP_DO_CTTS,
418 g_param_spec_boolean ("presentation-time",
419 "Include presentation-time info",
420 "Calculate and include presentation/composition time "
421 "(in addition to decoding time)", DEFAULT_DO_CTTS,
422 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
423 #ifndef GST_REMOVE_DEPRECATED
424 g_object_class_install_property (gobject_class, PROP_DTS_METHOD,
425 g_param_spec_enum ("dts-method", "dts-method",
426 "Method to determine DTS time (DEPRECATED)",
427 GST_TYPE_QT_MUX_DTS_METHOD, DEFAULT_DTS_METHOD,
428 G_PARAM_DEPRECATED | G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
429 G_PARAM_STATIC_STRINGS));
431 g_object_class_install_property (gobject_class, PROP_FAST_START,
432 g_param_spec_boolean ("faststart", "Format file to faststart",
433 "If the file should be formatted for faststart (headers first)",
434 DEFAULT_FAST_START, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
435 g_object_class_install_property (gobject_class, PROP_FAST_START_TEMP_FILE,
436 g_param_spec_string ("faststart-file", "File to use for storing buffers",
437 "File that will be used temporarily to store data from the stream "
438 "when creating a faststart file. If null a filepath will be "
439 "created automatically", DEFAULT_FAST_START_TEMP_FILE,
440 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
441 g_object_class_install_property (gobject_class, PROP_MOOV_RECOV_FILE,
442 g_param_spec_string ("moov-recovery-file",
443 "File to store data for posterior moov atom recovery",
444 "File to be used to store "
445 "data for moov atom making movie file recovery possible in case "
446 "of a crash during muxing. Null for disabled. (Experimental)",
447 DEFAULT_MOOV_RECOV_FILE,
448 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
449 g_object_class_install_property (gobject_class, PROP_FRAGMENT_DURATION,
450 g_param_spec_uint ("fragment-duration", "Fragment duration",
451 "Fragment durations in ms (produce a fragmented file if > 0)",
452 0, G_MAXUINT32, klass->format == GST_QT_MUX_FORMAT_ISML ?
453 2000 : DEFAULT_FRAGMENT_DURATION,
454 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
455 g_object_class_install_property (gobject_class, PROP_STREAMABLE,
456 g_param_spec_boolean ("streamable", "Streamable", streamable_desc,
457 streamable, streamable_flags | G_PARAM_STATIC_STRINGS));
458 g_object_class_install_property (gobject_class, PROP_RESERVED_MAX_DURATION,
459 g_param_spec_uint64 ("reserved-max-duration",
460 "Reserved maximum file duration (ns)",
461 "When set to a value > 0, reserves space for index tables at the "
462 "beginning of the file.",
463 0, G_MAXUINT64, DEFAULT_RESERVED_MAX_DURATION,
464 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
465 g_object_class_install_property (gobject_class,
466 PROP_RESERVED_DURATION_REMAINING,
467 g_param_spec_uint64 ("reserved-duration-remaining",
468 "Report the approximate amount of remaining recording space (ns)",
469 "Reports the approximate amount of remaining moov header space "
470 "reserved using reserved-max-duration", 0, G_MAXUINT64, 0,
471 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
472 g_object_class_install_property (gobject_class,
473 PROP_RESERVED_MOOV_UPDATE_PERIOD,
474 g_param_spec_uint64 ("reserved-moov-update-period",
475 "Interval at which to update index tables (ns)",
476 "When used with reserved-max-duration, periodically updates the "
477 "index tables with information muxed so far.", 0, G_MAXUINT64,
478 DEFAULT_RESERVED_MOOV_UPDATE_PERIOD,
479 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
480 g_object_class_install_property (gobject_class, PROP_RESERVED_BYTES_PER_SEC,
481 g_param_spec_uint ("reserved-bytes-per-sec",
482 "Reserved MOOV bytes per second, per track",
483 "Multiplier for converting reserved-max-duration into bytes of header to reserve, per second, per track",
484 0, 10000, DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK,
485 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
486 g_object_class_install_property (gobject_class, PROP_INTERLEAVE_BYTES,
487 g_param_spec_uint64 ("interleave-bytes", "Interleave (bytes)",
488 "Interleave between streams in bytes",
489 0, G_MAXUINT64, DEFAULT_INTERLEAVE_BYTES,
490 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
491 g_object_class_install_property (gobject_class, PROP_INTERLEAVE_TIME,
492 g_param_spec_uint64 ("interleave-time", "Interleave (time)",
493 "Interleave between streams in nanoseconds",
494 0, G_MAXUINT64, DEFAULT_INTERLEAVE_TIME,
495 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
497 gstelement_class->request_new_pad =
498 GST_DEBUG_FUNCPTR (gst_qt_mux_request_new_pad);
499 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_qt_mux_change_state);
500 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_qt_mux_release_pad);
504 gst_qt_mux_pad_reset (GstQTPad * qtpad)
507 qtpad->is_out_of_order = FALSE;
508 qtpad->sample_size = 0;
511 qtpad->dts_adjustment = GST_CLOCK_TIME_NONE;
512 qtpad->first_ts = GST_CLOCK_TIME_NONE;
513 qtpad->first_dts = GST_CLOCK_TIME_NONE;
514 qtpad->prepare_buf_func = NULL;
515 qtpad->create_empty_buffer = NULL;
516 qtpad->avg_bitrate = 0;
517 qtpad->max_bitrate = 0;
518 qtpad->total_duration = 0;
519 qtpad->total_bytes = 0;
520 qtpad->sparse = FALSE;
521 qtpad->tc_trak = NULL;
526 gst_buffer_replace (&qtpad->last_buf, NULL);
529 gst_tag_list_unref (qtpad->tags);
533 /* reference owned elsewhere */
537 atom_traf_free (qtpad->traf);
540 atom_array_clear (&qtpad->fragment_buffers);
542 /* reference owned elsewhere */
547 * Takes GstQTMux back to its initial state
550 gst_qt_mux_reset (GstQTMux * qtmux, gboolean alloc)
554 qtmux->state = GST_QT_MUX_STATE_NONE;
555 qtmux->header_size = 0;
556 qtmux->mdat_size = 0;
559 qtmux->longest_chunk = GST_CLOCK_TIME_NONE;
560 qtmux->video_pads = 0;
561 qtmux->audio_pads = 0;
562 qtmux->fragment_sequence = 0;
565 atom_ftyp_free (qtmux->ftyp);
569 atom_moov_free (qtmux->moov);
573 atom_mfra_free (qtmux->mfra);
576 if (qtmux->fast_start_file) {
577 fclose (qtmux->fast_start_file);
578 g_remove (qtmux->fast_start_file_path);
579 qtmux->fast_start_file = NULL;
581 if (qtmux->moov_recov_file) {
582 fclose (qtmux->moov_recov_file);
583 qtmux->moov_recov_file = NULL;
585 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
586 AtomInfo *ainfo = (AtomInfo *) walk->data;
587 ainfo->free_func (ainfo->atom);
590 g_slist_free (qtmux->extra_atoms);
591 qtmux->extra_atoms = NULL;
593 GST_OBJECT_LOCK (qtmux);
594 gst_tag_setter_reset_tags (GST_TAG_SETTER (qtmux));
595 GST_OBJECT_UNLOCK (qtmux);
598 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
599 GstQTPad *qtpad = (GstQTPad *) walk->data;
600 gst_qt_mux_pad_reset (qtpad);
602 /* hm, moov_free above yanked the traks away from us,
603 * so do not free, but do clear */
608 qtmux->moov = atom_moov_new (qtmux->context);
609 /* ensure all is as nice and fresh as request_new_pad would provide it */
610 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
611 GstQTPad *qtpad = (GstQTPad *) walk->data;
613 qtpad->trak = atom_trak_new (qtmux->context);
614 atom_moov_add_trak (qtmux->moov, qtpad->trak);
618 qtmux->current_pad = NULL;
619 qtmux->current_chunk_size = 0;
620 qtmux->current_chunk_duration = 0;
621 qtmux->current_chunk_offset = -1;
623 qtmux->reserved_moov_size = 0;
624 qtmux->last_moov_update = GST_CLOCK_TIME_NONE;
625 qtmux->muxed_since_last_update = 0;
626 qtmux->reserved_duration_remaining = GST_CLOCK_TIME_NONE;
627 qtmux->first_pts = GST_CLOCK_TIME_NONE;
632 gst_qt_mux_init (GstQTMux * qtmux, GstQTMuxClass * qtmux_klass)
634 GstElementClass *klass = GST_ELEMENT_CLASS (qtmux_klass);
635 GstPadTemplate *templ;
637 templ = gst_element_class_get_pad_template (klass, "src");
638 qtmux->srcpad = gst_pad_new_from_template (templ, "src");
639 gst_pad_use_fixed_caps (qtmux->srcpad);
640 gst_element_add_pad (GST_ELEMENT (qtmux), qtmux->srcpad);
642 qtmux->sinkpads = NULL;
643 qtmux->collect = gst_collect_pads_new ();
644 gst_collect_pads_set_event_function (qtmux->collect,
645 GST_DEBUG_FUNCPTR (gst_qt_mux_sink_event), qtmux);
646 gst_collect_pads_set_clip_function (qtmux->collect,
647 GST_DEBUG_FUNCPTR (gst_collect_pads_clip_running_time), qtmux);
648 gst_collect_pads_set_function (qtmux->collect,
649 GST_DEBUG_FUNCPTR (gst_qt_mux_collected), qtmux);
651 /* properties set to default upon construction */
653 qtmux->reserved_max_duration = DEFAULT_RESERVED_MAX_DURATION;
654 qtmux->reserved_moov_update_period = DEFAULT_RESERVED_MOOV_UPDATE_PERIOD;
655 qtmux->reserved_bytes_per_sec_per_trak =
656 DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK;
657 qtmux->interleave_bytes = DEFAULT_INTERLEAVE_BYTES;
658 qtmux->interleave_time = DEFAULT_INTERLEAVE_TIME;
660 /* always need this */
662 atoms_context_new (gst_qt_mux_map_format_to_flavor (qtmux_klass->format));
664 /* internals to initial state */
665 gst_qt_mux_reset (qtmux, TRUE);
670 gst_qt_mux_finalize (GObject * object)
672 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
674 gst_qt_mux_reset (qtmux, FALSE);
676 g_free (qtmux->fast_start_file_path);
677 g_free (qtmux->moov_recov_file_path);
679 atoms_context_free (qtmux->context);
680 gst_object_unref (qtmux->collect);
682 g_slist_free (qtmux->sinkpads);
684 G_OBJECT_CLASS (parent_class)->finalize (object);
688 gst_qt_mux_prepare_jpc_buffer (GstQTPad * qtpad, GstBuffer * buf,
695 GST_LOG_OBJECT (qtmux, "Preparing jpc buffer");
700 size = gst_buffer_get_size (buf);
701 newbuf = gst_buffer_new_and_alloc (size + 8);
702 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_ALL, 8, size);
704 gst_buffer_map (newbuf, &map, GST_MAP_WRITE);
705 GST_WRITE_UINT32_BE (map.data, map.size);
706 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_jp2c);
708 gst_buffer_unmap (buf, &map);
709 gst_buffer_unref (buf);
715 gst_qt_mux_prepare_tx3g_buffer (GstQTPad * qtpad, GstBuffer * buf,
722 const guint8 *dataend;
724 GST_LOG_OBJECT (qtmux, "Preparing tx3g buffer %" GST_PTR_FORMAT, buf);
729 gst_buffer_map (buf, &frommap, GST_MAP_READ);
731 dataend = memchr (frommap.data, 0, frommap.size);
732 size = dataend ? dataend - frommap.data : frommap.size;
733 newbuf = gst_buffer_new_and_alloc (size + 2);
735 gst_buffer_map (newbuf, &tomap, GST_MAP_WRITE);
737 GST_WRITE_UINT16_BE (tomap.data, size);
738 memcpy (tomap.data + 2, frommap.data, size);
740 gst_buffer_unmap (newbuf, &tomap);
741 gst_buffer_unmap (buf, &frommap);
743 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_METADATA, 0, size);
745 /* gst_buffer_copy_into is trying to be too clever and
746 * won't copy duration when size is different */
747 GST_BUFFER_DURATION (newbuf) = GST_BUFFER_DURATION (buf);
749 gst_buffer_unref (buf);
755 gst_qt_mux_pad_add_ac3_extension (GstQTMux * qtmux, GstQTPad * qtpad,
756 guint8 fscod, guint8 frmsizcod, guint8 bsid, guint8 bsmod, guint8 acmod,
761 g_return_if_fail (qtpad->trak_ste);
763 ext = build_ac3_extension (fscod, bsid, bsmod, acmod, lfe_on, frmsizcod >> 1); /* bitrate_code is inside frmsizcod */
765 sample_table_entry_add_ext_atom (qtpad->trak_ste, ext);
769 gst_qt_mux_prepare_parse_ac3_frame (GstQTPad * qtpad, GstBuffer * buf,
773 GstByteReader reader;
776 if (!gst_buffer_map (buf, &map, GST_MAP_READ)) {
777 GST_WARNING_OBJECT (qtpad->collect.pad, "Failed to map buffer");
781 if (G_UNLIKELY (map.size < 8))
784 gst_byte_reader_init (&reader, map.data, map.size);
785 off = gst_byte_reader_masked_scan_uint32 (&reader, 0xffff0000, 0x0b770000,
790 guint8 fscod, frmsizcod, bsid, bsmod, acmod, lfe_on;
792 GST_DEBUG_OBJECT (qtpad->collect.pad, "Found ac3 sync point at offset: %u",
795 gst_bit_reader_init (&bits, map.data, map.size);
797 /* off + sync + crc */
798 gst_bit_reader_skip_unchecked (&bits, off * 8 + 16 + 16);
800 fscod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 2);
801 frmsizcod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 6);
802 bsid = gst_bit_reader_get_bits_uint8_unchecked (&bits, 5);
803 bsmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
804 acmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
806 if ((acmod & 0x1) && (acmod != 0x1)) /* 3 front channels */
807 gst_bit_reader_skip_unchecked (&bits, 2);
808 if ((acmod & 0x4)) /* if a surround channel exists */
809 gst_bit_reader_skip_unchecked (&bits, 2);
810 if (acmod == 0x2) /* if in 2/0 mode */
811 gst_bit_reader_skip_unchecked (&bits, 2);
813 lfe_on = gst_bit_reader_get_bits_uint8_unchecked (&bits, 1);
815 gst_qt_mux_pad_add_ac3_extension (qtmux, qtpad, fscod, frmsizcod, bsid,
816 bsmod, acmod, lfe_on);
818 /* AC-3 spec says that those values should be constant for the
819 * whole stream when muxed in mp4. We trust the input follows it */
820 GST_DEBUG_OBJECT (qtpad->collect.pad, "Data parsed, removing "
821 "prepare buffer function");
822 qtpad->prepare_buf_func = NULL;
826 gst_buffer_unmap (buf, &map);
831 gst_qt_mux_create_empty_tx3g_buffer (GstQTPad * qtpad, gint64 duration)
836 GST_WRITE_UINT16_BE (data, 0);
838 return gst_buffer_new_wrapped (data, 2);
842 gst_qt_mux_add_mp4_tag (GstQTMux * qtmux, const GstTagList * list,
843 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
845 switch (gst_tag_get_type (tag)) {
851 if (!gst_tag_list_get_string (list, tag, &str) || !str)
853 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
854 GST_FOURCC_ARGS (fourcc), str);
855 atom_udta_add_str_tag (udta, fourcc, str);
864 if (!gst_tag_list_get_double (list, tag, &value))
866 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
867 GST_FOURCC_ARGS (fourcc), (gint) value);
868 atom_udta_add_uint_tag (udta, fourcc, 21, (gint) value);
875 /* paired unsigned integers */
879 got_tag = gst_tag_list_get_uint (list, tag, &value);
880 got_tag = gst_tag_list_get_uint (list, tag2, &count) || got_tag;
883 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u/%u",
884 GST_FOURCC_ARGS (fourcc), value, count);
885 atom_udta_add_uint_tag (udta, fourcc, 0,
886 value << 16 | (count & 0xFFFF));
888 /* unpaired unsigned integers */
889 if (!gst_tag_list_get_uint (list, tag, &value))
891 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
892 GST_FOURCC_ARGS (fourcc), value);
893 atom_udta_add_uint_tag (udta, fourcc, 1, value);
898 g_assert_not_reached ();
904 gst_qt_mux_add_mp4_date (GstQTMux * qtmux, const GstTagList * list,
905 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
913 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
915 if (!gst_tag_list_get_date (list, tag, &date) || !date)
918 year = g_date_get_year (date);
919 month = g_date_get_month (date);
920 day = g_date_get_day (date);
924 if (year == G_DATE_BAD_YEAR && month == G_DATE_BAD_MONTH &&
925 day == G_DATE_BAD_DAY) {
926 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
930 str = g_strdup_printf ("%u-%u-%u", year, month, day);
931 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
932 GST_FOURCC_ARGS (fourcc), str);
933 atom_udta_add_str_tag (udta, fourcc, str);
938 gst_qt_mux_add_mp4_cover (GstQTMux * qtmux, const GstTagList * list,
939 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
941 GValue value = { 0, };
945 GstStructure *structure;
949 g_return_if_fail (gst_tag_get_type (tag) == GST_TYPE_SAMPLE);
951 if (!gst_tag_list_copy_value (&value, list, tag))
954 sample = gst_value_get_sample (&value);
959 buf = gst_sample_get_buffer (sample);
963 caps = gst_sample_get_caps (sample);
965 GST_WARNING_OBJECT (qtmux, "preview image without caps");
969 GST_DEBUG_OBJECT (qtmux, "preview image caps %" GST_PTR_FORMAT, caps);
971 structure = gst_caps_get_structure (caps, 0);
972 if (gst_structure_has_name (structure, "image/jpeg"))
974 else if (gst_structure_has_name (structure, "image/png"))
978 GST_WARNING_OBJECT (qtmux, "preview image format not supported");
982 gst_buffer_map (buf, &map, GST_MAP_READ);
983 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT
984 " -> image size %" G_GSIZE_FORMAT "", GST_FOURCC_ARGS (fourcc), map.size);
985 atom_udta_add_tag (udta, fourcc, flags, map.data, map.size);
986 gst_buffer_unmap (buf, &map);
988 g_value_unset (&value);
992 gst_qt_mux_add_3gp_str (GstQTMux * qtmux, const GstTagList * list,
993 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
998 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_STRING);
999 g_return_if_fail (!tag2 || gst_tag_get_type (tag2) == G_TYPE_UINT);
1001 if (!gst_tag_list_get_string (list, tag, &str) || !str)
1005 if (!gst_tag_list_get_uint (list, tag2, &number))
1009 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1010 GST_FOURCC_ARGS (fourcc), str);
1011 atom_udta_add_3gp_str_tag (udta, fourcc, str);
1013 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s/%d",
1014 GST_FOURCC_ARGS (fourcc), str, number);
1015 atom_udta_add_3gp_str_int_tag (udta, fourcc, str, number);
1022 gst_qt_mux_add_3gp_date (GstQTMux * qtmux, const GstTagList * list,
1023 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1028 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
1030 if (!gst_tag_list_get_date (list, tag, &date) || !date)
1033 year = g_date_get_year (date);
1036 if (year == G_DATE_BAD_YEAR) {
1037 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
1041 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %d",
1042 GST_FOURCC_ARGS (fourcc), year);
1043 atom_udta_add_3gp_uint_tag (udta, fourcc, year);
1047 gst_qt_mux_add_3gp_location (GstQTMux * qtmux, const GstTagList * list,
1048 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1050 gdouble latitude = -360, longitude = -360, altitude = 0;
1051 gchar *location = NULL;
1052 guint8 *data, *ddata;
1053 gint size = 0, len = 0;
1054 gboolean ret = FALSE;
1056 g_return_if_fail (strcmp (tag, GST_TAG_GEO_LOCATION_NAME) == 0);
1058 ret = gst_tag_list_get_string (list, tag, &location);
1059 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LONGITUDE,
1061 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LATITUDE,
1063 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_ELEVATION,
1070 len = strlen (location);
1071 size += len + 1 + 2;
1073 /* role + (long, lat, alt) + body + notes */
1074 size += 1 + 3 * 4 + 1 + 1;
1076 data = ddata = g_malloc (size);
1079 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1082 memcpy (data + 2, location, len);
1083 GST_WRITE_UINT8 (data + 2 + len, 0);
1084 data += len + 1 + 2;
1086 GST_WRITE_UINT8 (data, 0);
1087 /* long, lat, alt */
1088 #define QT_WRITE_SFP32(data, fp) GST_WRITE_UINT32_BE(data, (guint32) ((gint) (fp * 65536.0)))
1089 QT_WRITE_SFP32 (data + 1, longitude);
1090 QT_WRITE_SFP32 (data + 5, latitude);
1091 QT_WRITE_SFP32 (data + 9, altitude);
1092 /* neither astronomical body nor notes */
1093 GST_WRITE_UINT16_BE (data + 13, 0);
1095 GST_DEBUG_OBJECT (qtmux, "Adding tag 'loci'");
1096 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1101 gst_qt_mux_add_3gp_keywords (GstQTMux * qtmux, const GstTagList * list,
1102 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1104 gchar *keywords = NULL;
1105 guint8 *data, *ddata;
1109 g_return_if_fail (strcmp (tag, GST_TAG_KEYWORDS) == 0);
1111 if (!gst_tag_list_get_string (list, tag, &keywords) || !keywords)
1114 kwds = g_strsplit (keywords, ",", 0);
1118 for (i = 0; kwds[i]; i++) {
1119 /* size byte + null-terminator */
1120 size += strlen (kwds[i]) + 1 + 1;
1123 /* language tag + count + keywords */
1126 data = ddata = g_malloc (size);
1129 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1131 GST_WRITE_UINT8 (data + 2, i);
1134 for (i = 0; kwds[i]; ++i) {
1135 gint len = strlen (kwds[i]);
1137 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1138 GST_FOURCC_ARGS (fourcc), kwds[i]);
1140 GST_WRITE_UINT8 (data, len + 1);
1141 memcpy (data + 1, kwds[i], len + 1);
1147 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1152 gst_qt_mux_parse_classification_string (GstQTMux * qtmux, const gchar * input,
1153 guint32 * p_fourcc, guint16 * p_table, gchar ** p_content)
1161 size = strlen (input);
1163 if (size < 4 + 3 + 1 + 1 + 1) {
1164 /* at least the minimum xxxx://y/z */
1165 GST_WARNING_OBJECT (qtmux, "Classification tag input (%s) too short, "
1170 /* read the fourcc */
1171 memcpy (&fourcc, data, 4);
1175 if (strncmp (data, "://", 3) != 0) {
1181 /* read the table number */
1182 if (sscanf (data, "%d", &table) != 1) {
1186 GST_WARNING_OBJECT (qtmux, "Invalid table number in classification tag (%d)"
1187 ", table numbers should be positive, ignoring tag", table);
1191 /* find the next / */
1192 while (size > 0 && data[0] != '/') {
1199 g_assert (data[0] == '/');
1208 /* read up the rest of the string */
1209 *p_content = g_strdup (data);
1210 *p_table = (guint16) table;
1216 GST_WARNING_OBJECT (qtmux, "Ignoring classification tag as "
1217 "input (%s) didn't match the expected entitycode://table/content",
1224 gst_qt_mux_add_3gp_classification (GstQTMux * qtmux, const GstTagList * list,
1225 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1227 gchar *clsf_data = NULL;
1231 gchar *content = NULL;
1234 g_return_if_fail (strcmp (tag, GST_TAG_3GP_CLASSIFICATION) == 0);
1236 if (!gst_tag_list_get_string (list, tag, &clsf_data) || !clsf_data)
1239 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1240 GST_FOURCC_ARGS (fourcc), clsf_data);
1242 /* parse the string, format is:
1243 * entityfourcc://table/content
1245 gst_qt_mux_parse_classification_string (qtmux, clsf_data, &entity, &table,
1249 size = strlen (content) + 1;
1251 /* now we have everything, build the atom
1252 * atom description is at 3GPP TS 26.244 V8.2.0 (2009-09) */
1253 data = g_malloc (4 + 2 + 2 + size);
1254 GST_WRITE_UINT32_LE (data, entity);
1255 GST_WRITE_UINT16_BE (data + 4, (guint16) table);
1256 GST_WRITE_UINT16_BE (data + 6, 0);
1257 memcpy (data + 8, content, size);
1260 atom_udta_add_3gp_tag (udta, fourcc, data, 4 + 2 + 2 + size);
1264 typedef void (*GstQTMuxAddUdtaTagFunc) (GstQTMux * mux,
1265 const GstTagList * list, AtomUDTA * udta, const char *tag,
1266 const char *tag2, guint32 fourcc);
1269 * Struct to record mappings from gstreamer tags to fourcc codes
1271 typedef struct _GstTagToFourcc
1274 const gchar *gsttag;
1275 const gchar *gsttag2;
1276 const GstQTMuxAddUdtaTagFunc func;
1279 /* tag list tags to fourcc matching */
1280 static const GstTagToFourcc tag_matches_mp4[] = {
1281 {FOURCC__alb, GST_TAG_ALBUM, NULL, gst_qt_mux_add_mp4_tag},
1282 {FOURCC_soal, GST_TAG_ALBUM_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1283 {FOURCC__ART, GST_TAG_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1284 {FOURCC_soar, GST_TAG_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1285 {FOURCC_aART, GST_TAG_ALBUM_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1286 {FOURCC_soaa, GST_TAG_ALBUM_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1287 {FOURCC__swr, GST_TAG_APPLICATION_NAME, NULL, gst_qt_mux_add_mp4_tag},
1288 {FOURCC__cmt, GST_TAG_COMMENT, NULL, gst_qt_mux_add_mp4_tag},
1289 {FOURCC__wrt, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_mp4_tag},
1290 {FOURCC_soco, GST_TAG_COMPOSER_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1291 {FOURCC_tvsh, GST_TAG_SHOW_NAME, NULL, gst_qt_mux_add_mp4_tag},
1292 {FOURCC_sosn, GST_TAG_SHOW_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1293 {FOURCC_tvsn, GST_TAG_SHOW_SEASON_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1294 {FOURCC_tves, GST_TAG_SHOW_EPISODE_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1295 {FOURCC__gen, GST_TAG_GENRE, NULL, gst_qt_mux_add_mp4_tag},
1296 {FOURCC__nam, GST_TAG_TITLE, NULL, gst_qt_mux_add_mp4_tag},
1297 {FOURCC_sonm, GST_TAG_TITLE_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1298 {FOURCC_perf, GST_TAG_PERFORMER, NULL, gst_qt_mux_add_mp4_tag},
1299 {FOURCC__grp, GST_TAG_GROUPING, NULL, gst_qt_mux_add_mp4_tag},
1300 {FOURCC__des, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_mp4_tag},
1301 {FOURCC__lyr, GST_TAG_LYRICS, NULL, gst_qt_mux_add_mp4_tag},
1302 {FOURCC__too, GST_TAG_ENCODER, NULL, gst_qt_mux_add_mp4_tag},
1303 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_mp4_tag},
1304 {FOURCC_keyw, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_mp4_tag},
1305 {FOURCC__day, GST_TAG_DATE, NULL, gst_qt_mux_add_mp4_date},
1306 {FOURCC_tmpo, GST_TAG_BEATS_PER_MINUTE, NULL, gst_qt_mux_add_mp4_tag},
1307 {FOURCC_trkn, GST_TAG_TRACK_NUMBER, GST_TAG_TRACK_COUNT,
1308 gst_qt_mux_add_mp4_tag},
1309 {FOURCC_disk, GST_TAG_ALBUM_VOLUME_NUMBER, GST_TAG_ALBUM_VOLUME_COUNT,
1310 gst_qt_mux_add_mp4_tag},
1311 {FOURCC_covr, GST_TAG_PREVIEW_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1312 {FOURCC_covr, GST_TAG_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1316 static const GstTagToFourcc tag_matches_3gp[] = {
1317 {FOURCC_titl, GST_TAG_TITLE, NULL, gst_qt_mux_add_3gp_str},
1318 {FOURCC_dscp, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_3gp_str},
1319 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_3gp_str},
1320 {FOURCC_perf, GST_TAG_ARTIST, NULL, gst_qt_mux_add_3gp_str},
1321 {FOURCC_auth, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_3gp_str},
1322 {FOURCC_gnre, GST_TAG_GENRE, NULL, gst_qt_mux_add_3gp_str},
1323 {FOURCC_kywd, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_3gp_keywords},
1324 {FOURCC_yrrc, GST_TAG_DATE, NULL, gst_qt_mux_add_3gp_date},
1325 {FOURCC_albm, GST_TAG_ALBUM, GST_TAG_TRACK_NUMBER, gst_qt_mux_add_3gp_str},
1326 {FOURCC_loci, GST_TAG_GEO_LOCATION_NAME, NULL, gst_qt_mux_add_3gp_location},
1327 {FOURCC_clsf, GST_TAG_3GP_CLASSIFICATION, NULL,
1328 gst_qt_mux_add_3gp_classification},
1332 /* qtdemux produces these for atoms it cannot parse */
1333 #define GST_QT_DEMUX_PRIVATE_TAG "private-qt-tag"
1336 gst_qt_mux_add_xmp_tags (GstQTMux * qtmux, const GstTagList * list)
1338 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1339 GstBuffer *xmp = NULL;
1341 /* adobe specs only have 'quicktime' and 'mp4',
1342 * but I guess we can extrapolate to gpp.
1343 * Keep mj2 out for now as we don't add any tags for it yet.
1344 * If you have further info about xmp on these formats, please share */
1345 if (qtmux_klass->format == GST_QT_MUX_FORMAT_MJ2)
1348 GST_DEBUG_OBJECT (qtmux, "Adding xmp tags");
1350 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT) {
1351 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1354 atom_udta_add_xmp_tags (&qtmux->moov->udta, xmp);
1357 /* for isom/mp4, it is a top level uuid atom */
1358 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1361 ainfo = build_uuid_xmp_atom (xmp);
1363 qtmux->extra_atoms = g_slist_prepend (qtmux->extra_atoms, ainfo);
1368 gst_buffer_unref (xmp);
1372 gst_qt_mux_add_metadata_tags (GstQTMux * qtmux, const GstTagList * list,
1375 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1378 const gchar *tag, *tag2;
1379 const GstTagToFourcc *tag_matches;
1381 switch (qtmux_klass->format) {
1382 case GST_QT_MUX_FORMAT_3GP:
1383 tag_matches = tag_matches_3gp;
1385 case GST_QT_MUX_FORMAT_MJ2:
1389 /* sort of iTunes style for mp4 and QT (?) */
1390 tag_matches = tag_matches_mp4;
1397 /* Clear existing tags so we don't add them over and over */
1398 atom_udta_clear_tags (udta);
1400 for (i = 0; tag_matches[i].fourcc; i++) {
1401 fourcc = tag_matches[i].fourcc;
1402 tag = tag_matches[i].gsttag;
1403 tag2 = tag_matches[i].gsttag2;
1405 g_assert (tag_matches[i].func);
1406 tag_matches[i].func (qtmux, list, udta, tag, tag2, fourcc);
1409 /* add unparsed blobs if present */
1410 if (gst_tag_exists (GST_QT_DEMUX_PRIVATE_TAG)) {
1413 num_tags = gst_tag_list_get_tag_size (list, GST_QT_DEMUX_PRIVATE_TAG);
1414 for (i = 0; i < num_tags; ++i) {
1415 GstSample *sample = NULL;
1417 const GstStructure *s;
1419 if (!gst_tag_list_get_sample_index (list, GST_QT_DEMUX_PRIVATE_TAG, i,
1422 buf = gst_sample_get_buffer (sample);
1424 if (buf && (s = gst_sample_get_info (sample))) {
1425 const gchar *style = NULL;
1428 gst_buffer_map (buf, &map, GST_MAP_READ);
1429 GST_DEBUG_OBJECT (qtmux,
1430 "Found private tag %d/%d; size %" G_GSIZE_FORMAT ", info %"
1431 GST_PTR_FORMAT, i, num_tags, map.size, s);
1432 if (s && (style = gst_structure_get_string (s, "style"))) {
1433 /* try to prevent some style tag ending up into another variant
1434 * (todo: make into a list if more cases) */
1435 if ((strcmp (style, "itunes") == 0 &&
1436 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) ||
1437 (strcmp (style, "iso") == 0 &&
1438 qtmux_klass->format == GST_QT_MUX_FORMAT_3GP)) {
1439 GST_DEBUG_OBJECT (qtmux, "Adding private tag");
1440 atom_udta_add_blob_tag (udta, map.data, map.size);
1443 gst_buffer_unmap (buf, &map);
1445 gst_sample_unref (sample);
1453 * Gets the tagsetter iface taglist and puts the known tags
1454 * into the output stream
1457 gst_qt_mux_setup_metadata (GstQTMux * qtmux)
1459 const GstTagList *tags = NULL;
1462 GST_OBJECT_LOCK (qtmux);
1463 if (qtmux->tags_changed) {
1464 tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (qtmux));
1465 qtmux->tags_changed = FALSE;
1467 GST_OBJECT_UNLOCK (qtmux);
1469 GST_LOG_OBJECT (qtmux, "tags: %" GST_PTR_FORMAT, tags);
1471 if (tags && !gst_tag_list_is_empty (tags)) {
1472 GstTagList *copy = gst_tag_list_copy (tags);
1474 GST_DEBUG_OBJECT (qtmux, "Removing bogus tags");
1475 gst_tag_list_remove_tag (copy, GST_TAG_VIDEO_CODEC);
1476 gst_tag_list_remove_tag (copy, GST_TAG_AUDIO_CODEC);
1477 gst_tag_list_remove_tag (copy, GST_TAG_CONTAINER_FORMAT);
1479 GST_DEBUG_OBJECT (qtmux, "Formatting tags");
1480 gst_qt_mux_add_metadata_tags (qtmux, copy, &qtmux->moov->udta);
1481 gst_qt_mux_add_xmp_tags (qtmux, copy);
1482 gst_tag_list_unref (copy);
1484 GST_DEBUG_OBJECT (qtmux, "No new tags received");
1487 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
1488 GstCollectData *cdata = (GstCollectData *) walk->data;
1489 GstQTPad *qpad = (GstQTPad *) cdata;
1490 GstPad *pad = qpad->collect.pad;
1492 if (qpad->tags_changed && qpad->tags) {
1493 GST_DEBUG_OBJECT (pad, "Adding tags");
1494 gst_tag_list_remove_tag (qpad->tags, GST_TAG_CONTAINER_FORMAT);
1495 gst_qt_mux_add_metadata_tags (qtmux, qpad->tags, &qpad->trak->udta);
1496 qpad->tags_changed = FALSE;
1497 GST_DEBUG_OBJECT (pad, "Tags added");
1499 GST_DEBUG_OBJECT (pad, "No new tags received");
1504 static inline GstBuffer *
1505 _gst_buffer_new_take_data (guint8 * data, guint size)
1509 buf = gst_buffer_new ();
1510 gst_buffer_append_memory (buf,
1511 gst_memory_new_wrapped (0, data, size, 0, size, data, g_free));
1516 static GstFlowReturn
1517 gst_qt_mux_send_buffer (GstQTMux * qtmux, GstBuffer * buf, guint64 * offset,
1523 g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
1525 size = gst_buffer_get_size (buf);
1526 GST_LOG_OBJECT (qtmux, "sending buffer size %" G_GSIZE_FORMAT, size);
1528 if (mind_fast && qtmux->fast_start_file) {
1532 GST_LOG_OBJECT (qtmux, "to temporary file");
1533 gst_buffer_map (buf, &map, GST_MAP_READ);
1534 ret = fwrite (map.data, sizeof (guint8), map.size, qtmux->fast_start_file);
1535 gst_buffer_unmap (buf, &map);
1536 gst_buffer_unref (buf);
1542 GST_LOG_OBJECT (qtmux, "downstream");
1543 res = gst_pad_push (qtmux->srcpad, buf);
1546 if (G_LIKELY (offset))
1554 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1555 ("Failed to write to temporary file"), GST_ERROR_SYSTEM);
1556 return GST_FLOW_ERROR;
1561 gst_qt_mux_seek_to_beginning (FILE * f)
1564 if (fseeko (f, (off_t) 0, SEEK_SET) != 0)
1566 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1567 if (lseek (fileno (f), (off_t) 0, SEEK_SET) == (off_t) - 1)
1570 if (fseek (f, (long) 0, SEEK_SET) != 0)
1576 static GstFlowReturn
1577 gst_qt_mux_send_buffered_data (GstQTMux * qtmux, guint64 * offset)
1579 GstFlowReturn ret = GST_FLOW_OK;
1580 GstBuffer *buf = NULL;
1582 if (fflush (qtmux->fast_start_file))
1585 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1588 /* hm, this could all take a really really long time,
1589 * but there may not be another way to get moov atom first
1590 * (somehow optimize copy?) */
1591 GST_DEBUG_OBJECT (qtmux, "Sending buffered data");
1592 while (ret == GST_FLOW_OK) {
1593 const int bufsize = 4096;
1597 buf = gst_buffer_new_and_alloc (bufsize);
1598 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1599 size = fread (map.data, sizeof (guint8), bufsize, qtmux->fast_start_file);
1601 gst_buffer_unmap (buf, &map);
1604 GST_LOG_OBJECT (qtmux, "Pushing buffered buffer of size %d", (gint) size);
1605 gst_buffer_unmap (buf, &map);
1606 if (size != bufsize)
1607 gst_buffer_set_size (buf, size);
1608 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
1612 gst_buffer_unref (buf);
1614 if (ftruncate (fileno (qtmux->fast_start_file), 0))
1616 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1624 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1625 ("Failed to flush temporary file"), GST_ERROR_SYSTEM);
1626 ret = GST_FLOW_ERROR;
1631 GST_ELEMENT_ERROR (qtmux, RESOURCE, SEEK,
1632 ("Failed to seek temporary file"), GST_ERROR_SYSTEM);
1633 ret = GST_FLOW_ERROR;
1638 /* clear descriptor so we don't remove temp file later on,
1639 * might be possible to recover */
1640 fclose (qtmux->fast_start_file);
1641 qtmux->fast_start_file = NULL;
1647 * Sends the initial mdat atom fields (size fields and fourcc type),
1648 * the subsequent buffers are considered part of it's data.
1649 * As we can't predict the amount of data that we are going to place in mdat
1650 * we need to record the position of the size field in the stream so we can
1651 * seek back to it later and update when the streams have finished.
1653 static GstFlowReturn
1654 gst_qt_mux_send_mdat_header (GstQTMux * qtmux, guint64 * off, guint64 size,
1655 gboolean extended, gboolean fsync_after)
1660 GST_DEBUG_OBJECT (qtmux, "Sending mdat's atom header, "
1661 "size %" G_GUINT64_FORMAT, size);
1663 /* if the qtmux state is EOS, really write the mdat, otherwise
1664 * allow size == 0 for a placeholder atom */
1665 if (qtmux->state == GST_QT_MUX_STATE_EOS || size > 0)
1669 gboolean large_file = (size > MDAT_LARGE_FILE_LIMIT);
1670 /* Always write 16-bytes, but put a free atom first
1671 * if the size is < 4GB. */
1672 buf = gst_buffer_new_and_alloc (16);
1673 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1676 /* Write extended mdat header and large_size field */
1677 GST_WRITE_UINT32_BE (map.data, 1);
1678 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1679 GST_WRITE_UINT64_BE (map.data + 8, size + 8);
1681 /* Write an empty free atom, then standard 32-bit mdat */
1682 GST_WRITE_UINT32_BE (map.data, 8);
1683 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_free);
1684 GST_WRITE_UINT32_BE (map.data + 8, size);
1685 GST_WRITE_UINT32_LE (map.data + 12, FOURCC_mdat);
1687 gst_buffer_unmap (buf, &map);
1689 buf = gst_buffer_new_and_alloc (8);
1690 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1692 /* Vanilla 32-bit mdat */
1693 GST_WRITE_UINT32_BE (map.data, size);
1694 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1695 gst_buffer_unmap (buf, &map);
1698 GST_LOG_OBJECT (qtmux, "Pushing mdat header");
1700 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1702 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1707 * We get the position of the mdat size field, seek back to it
1708 * and overwrite with the real value
1710 static GstFlowReturn
1711 gst_qt_mux_update_mdat_size (GstQTMux * qtmux, guint64 mdat_pos,
1712 guint64 mdat_size, guint64 * offset, gboolean fsync_after)
1716 /* We must have recorded the mdat position for this to work */
1717 g_assert (mdat_pos != 0);
1719 /* seek and rewrite the header */
1720 gst_segment_init (&segment, GST_FORMAT_BYTES);
1721 segment.start = mdat_pos;
1722 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1724 return gst_qt_mux_send_mdat_header (qtmux, offset, mdat_size, TRUE,
1728 static GstFlowReturn
1729 gst_qt_mux_send_ftyp (GstQTMux * qtmux, guint64 * off)
1732 guint64 size = 0, offset = 0;
1733 guint8 *data = NULL;
1735 GST_DEBUG_OBJECT (qtmux, "Sending ftyp atom");
1737 if (!atom_ftyp_copy_data (qtmux->ftyp, &data, &size, &offset))
1738 goto serialize_error;
1740 buf = _gst_buffer_new_take_data (data, offset);
1742 GST_LOG_OBJECT (qtmux, "Pushing ftyp");
1743 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1748 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1749 ("Failed to serialize ftyp"));
1750 return GST_FLOW_ERROR;
1755 gst_qt_mux_prepare_ftyp (GstQTMux * qtmux, AtomFTYP ** p_ftyp,
1756 GstBuffer ** p_prefix)
1758 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1759 guint32 major, version;
1761 GstBuffer *prefix = NULL;
1762 AtomFTYP *ftyp = NULL;
1764 GST_DEBUG_OBJECT (qtmux, "Preparing ftyp and possible prefix atom");
1766 /* init and send context and ftyp based on current property state */
1767 gst_qt_mux_map_format_to_header (qtmux_klass->format, &prefix, &major,
1768 &version, &comp, qtmux->moov, qtmux->longest_chunk,
1769 qtmux->fast_start_file != NULL);
1770 ftyp = atom_ftyp_new (qtmux->context, major, version, comp);
1777 gst_buffer_unref (prefix);
1782 static GstFlowReturn
1783 gst_qt_mux_prepare_and_send_ftyp (GstQTMux * qtmux)
1785 GstFlowReturn ret = GST_FLOW_OK;
1786 GstBuffer *prefix = NULL;
1788 GST_DEBUG_OBJECT (qtmux, "Preparing to send ftyp atom");
1790 /* init and send context and ftyp based on current property state */
1792 atom_ftyp_free (qtmux->ftyp);
1795 gst_qt_mux_prepare_ftyp (qtmux, &qtmux->ftyp, &prefix);
1797 ret = gst_qt_mux_send_buffer (qtmux, prefix, &qtmux->header_size, FALSE);
1798 if (ret != GST_FLOW_OK)
1801 return gst_qt_mux_send_ftyp (qtmux, &qtmux->header_size);
1805 gst_qt_mux_set_header_on_caps (GstQTMux * mux, GstBuffer * buf)
1807 GstStructure *structure;
1808 GValue array = { 0 };
1809 GValue value = { 0 };
1810 GstCaps *caps, *tcaps;
1812 tcaps = gst_pad_get_current_caps (mux->srcpad);
1813 caps = gst_caps_copy (tcaps);
1814 gst_caps_unref (tcaps);
1816 structure = gst_caps_get_structure (caps, 0);
1818 g_value_init (&array, GST_TYPE_ARRAY);
1820 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
1821 g_value_init (&value, GST_TYPE_BUFFER);
1822 gst_value_take_buffer (&value, gst_buffer_ref (buf));
1823 gst_value_array_append_value (&array, &value);
1824 g_value_unset (&value);
1826 gst_structure_set_value (structure, "streamheader", &array);
1827 g_value_unset (&array);
1828 gst_pad_set_caps (mux->srcpad, caps);
1829 gst_caps_unref (caps);
1833 * Write out a free space atom. The offset is adjusted by the full
1834 * size, but a smaller buffer is sent
1836 static GstFlowReturn
1837 gst_qt_mux_send_free_atom (GstQTMux * qtmux, guint64 * off, guint32 size,
1838 gboolean fsync_after)
1842 guint8 *data = NULL;
1843 guint64 offset = 0, bsize = 0;
1846 GST_DEBUG_OBJECT (qtmux, "Sending free atom header of size %u", size);
1848 /* We can't make a free space atom smaller than the header */
1852 node_header = g_malloc0 (sizeof (Atom));
1853 node_header->type = FOURCC_free;
1854 node_header->size = size;
1857 if (atom_copy_data (node_header, &data, &bsize, &offset) == 0)
1858 goto serialize_error;
1860 buf = _gst_buffer_new_take_data (data, offset);
1861 g_free (node_header);
1864 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1866 GST_LOG_OBJECT (qtmux, "Pushing free atom");
1867 ret = gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1874 /* Make sure downstream position ends up at the end of this free box */
1875 gst_segment_init (&segment, GST_FORMAT_BYTES);
1876 segment.start = *off;
1877 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1885 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1886 ("Not enough free reserved space"));
1887 return GST_FLOW_ERROR;
1891 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1892 ("Failed to serialize mdat"));
1893 g_free (node_header);
1894 return GST_FLOW_ERROR;
1899 gst_qt_mux_configure_moov (GstQTMux * qtmux)
1901 gboolean fragmented = FALSE;
1904 GST_OBJECT_LOCK (qtmux);
1905 timescale = qtmux->timescale;
1906 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED ||
1907 qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE)
1909 GST_OBJECT_UNLOCK (qtmux);
1911 /* inform lower layers of our property wishes, and determine duration.
1912 * Let moov take care of this using its list of traks;
1913 * so that released pads are also included */
1914 GST_DEBUG_OBJECT (qtmux, "Updating timescale to %" G_GUINT32_FORMAT,
1916 atom_moov_update_timescale (qtmux->moov, timescale);
1917 atom_moov_set_fragmented (qtmux->moov, fragmented);
1919 atom_moov_update_duration (qtmux->moov);
1922 static GstFlowReturn
1923 gst_qt_mux_send_moov (GstQTMux * qtmux, guint64 * _offset,
1924 guint64 padded_moov_size, gboolean mind_fast, gboolean fsync_after)
1926 guint64 offset = 0, size = 0;
1929 GstFlowReturn ret = GST_FLOW_OK;
1931 /* serialize moov */
1934 GST_LOG_OBJECT (qtmux, "Copying movie header into buffer");
1935 if (!atom_moov_copy_data (qtmux->moov, &data, &size, &offset))
1936 goto serialize_error;
1937 qtmux->last_moov_size = offset;
1939 /* Check we have enough reserved space for this and a Free atom */
1940 if (padded_moov_size > 0 && offset + 8 > padded_moov_size)
1941 goto too_small_reserved;
1942 buf = _gst_buffer_new_take_data (data, offset);
1943 GST_DEBUG_OBJECT (qtmux, "Pushing moov atoms");
1945 /* If at EOS, this is the final moov, put in the streamheader
1946 * (apparently used by a flumotion util) */
1947 if (qtmux->state == GST_QT_MUX_STATE_EOS)
1948 gst_qt_mux_set_header_on_caps (qtmux, buf);
1951 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1952 ret = gst_qt_mux_send_buffer (qtmux, buf, _offset, mind_fast);
1954 /* Write out a free atom if needed */
1955 if (ret == GST_FLOW_OK && offset < padded_moov_size) {
1956 GST_LOG_OBJECT (qtmux, "Writing out free atom of size %u",
1957 (guint32) (padded_moov_size - offset));
1959 gst_qt_mux_send_free_atom (qtmux, _offset, padded_moov_size - offset,
1966 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
1967 ("Not enough free reserved header space"),
1968 ("Needed %" G_GUINT64_FORMAT " bytes, reserved %" G_GUINT64_FORMAT,
1969 offset, padded_moov_size));
1970 return GST_FLOW_ERROR;
1975 return GST_FLOW_ERROR;
1979 /* either calculates size of extra atoms or pushes them */
1980 static GstFlowReturn
1981 gst_qt_mux_send_extra_atoms (GstQTMux * qtmux, gboolean send, guint64 * offset,
1985 guint64 loffset = 0, size = 0;
1987 GstFlowReturn ret = GST_FLOW_OK;
1989 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
1990 AtomInfo *ainfo = (AtomInfo *) walk->data;
1994 if (!ainfo->copy_data_func (ainfo->atom,
1995 send ? &data : NULL, &size, &loffset))
1996 goto serialize_error;
2001 GST_DEBUG_OBJECT (qtmux,
2002 "Pushing extra top-level atom %" GST_FOURCC_FORMAT,
2003 GST_FOURCC_ARGS (ainfo->atom->type));
2004 buf = _gst_buffer_new_take_data (data, loffset);
2005 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
2006 if (ret != GST_FLOW_OK)
2019 return GST_FLOW_ERROR;
2024 gst_qt_mux_downstream_is_seekable (GstQTMux * qtmux)
2026 gboolean seekable = FALSE;
2027 GstQuery *query = gst_query_new_seeking (GST_FORMAT_BYTES);
2029 if (gst_pad_peer_query (qtmux->srcpad, query)) {
2030 gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
2031 GST_INFO_OBJECT (qtmux, "downstream is %sseekable", seekable ? "" : "not ");
2033 /* have to assume seeking is not supported if query not handled downstream */
2034 GST_WARNING_OBJECT (qtmux, "downstream did not handle seeking query");
2037 gst_query_unref (query);
2043 gst_qt_mux_prepare_moov_recovery (GstQTMux * qtmux)
2046 gboolean fail = FALSE;
2047 AtomFTYP *ftyp = NULL;
2048 GstBuffer *prefix = NULL;
2050 GST_DEBUG_OBJECT (qtmux, "Openning moov recovery file: %s",
2051 qtmux->moov_recov_file_path);
2053 qtmux->moov_recov_file = g_fopen (qtmux->moov_recov_file_path, "wb+");
2054 if (qtmux->moov_recov_file == NULL) {
2055 GST_WARNING_OBJECT (qtmux, "Failed to open moov recovery file in %s",
2056 qtmux->moov_recov_file_path);
2060 gst_qt_mux_prepare_ftyp (qtmux, &ftyp, &prefix);
2062 if (!atoms_recov_write_headers (qtmux->moov_recov_file, ftyp, prefix,
2063 qtmux->moov, qtmux->timescale, g_slist_length (qtmux->sinkpads))) {
2064 GST_WARNING_OBJECT (qtmux, "Failed to write moov recovery file " "headers");
2068 atom_ftyp_free (ftyp);
2070 gst_buffer_unref (prefix);
2072 for (walk = qtmux->sinkpads; walk && !fail; walk = g_slist_next (walk)) {
2073 GstCollectData *cdata = (GstCollectData *) walk->data;
2074 GstQTPad *qpad = (GstQTPad *) cdata;
2075 /* write info for each stream */
2076 fail = atoms_recov_write_trak_info (qtmux->moov_recov_file, qpad->trak);
2078 GST_WARNING_OBJECT (qtmux, "Failed to write trak info to recovery "
2086 fclose (qtmux->moov_recov_file);
2087 qtmux->moov_recov_file = NULL;
2088 GST_WARNING_OBJECT (qtmux, "An error was detected while writing to "
2089 "recover file, moov recovery won't work");
2092 static GstFlowReturn
2093 gst_qt_mux_start_file (GstQTMux * qtmux)
2095 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
2096 GstFlowReturn ret = GST_FLOW_OK;
2100 GstClockTime reserved_max_duration;
2101 guint reserved_bytes_per_sec_per_trak;
2103 GST_DEBUG_OBJECT (qtmux, "starting file");
2105 GST_OBJECT_LOCK (qtmux);
2106 reserved_max_duration = qtmux->reserved_max_duration;
2107 reserved_bytes_per_sec_per_trak = qtmux->reserved_bytes_per_sec_per_trak;
2108 GST_OBJECT_UNLOCK (qtmux);
2110 /* stream-start (FIXME: create id based on input ids) */
2111 g_snprintf (s_id, sizeof (s_id), "qtmux-%08x", g_random_int ());
2112 gst_pad_push_event (qtmux->srcpad, gst_event_new_stream_start (s_id));
2114 caps = gst_caps_copy (gst_pad_get_pad_template_caps (qtmux->srcpad));
2115 /* qtmux has structure with and without variant, remove all but the first */
2116 while (gst_caps_get_size (caps) > 1)
2117 gst_caps_remove_structure (caps, 1);
2118 gst_pad_set_caps (qtmux->srcpad, caps);
2119 gst_caps_unref (caps);
2121 /* Default is 'normal' mode */
2122 qtmux->mux_mode = GST_QT_MUX_MODE_MOOV_AT_END;
2124 /* Require a sensible fragment duration when muxing
2125 * using the ISML muxer */
2126 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML &&
2127 qtmux->fragment_duration == 0)
2130 if (qtmux->fragment_duration > 0) {
2131 if (qtmux->streamable)
2132 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE;
2134 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED;
2135 } else if (qtmux->fast_start) {
2136 qtmux->mux_mode = GST_QT_MUX_MODE_FAST_START;
2137 } else if (reserved_max_duration != GST_CLOCK_TIME_NONE) {
2138 qtmux->mux_mode = GST_QT_MUX_MODE_ROBUST_RECORDING;
2141 switch (qtmux->mux_mode) {
2142 case GST_QT_MUX_MODE_MOOV_AT_END:
2143 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2144 /* We have to be able to seek to rewrite the mdat header, or any
2145 * moov atom we write will not be visible in the file, because an
2146 * MDAT with 0 as the size covers the rest of the file. A file
2147 * with no moov is not playable, so error out now. */
2148 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2149 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2150 ("Downstream is not seekable - will not be able to create a playable file"),
2152 return GST_FLOW_ERROR;
2155 case GST_QT_MUX_MODE_FAST_START:
2156 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2157 break; /* Don't need seekability, ignore */
2158 case GST_QT_MUX_MODE_FRAGMENTED:
2159 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2160 GST_WARNING_OBJECT (qtmux, "downstream is not seekable, but "
2161 "streamable=false. Will ignore that and create streamable output "
2163 qtmux->streamable = TRUE;
2164 g_object_notify (G_OBJECT (qtmux), "streamable");
2169 /* let downstream know we think in BYTES and expect to do seeking later on */
2170 gst_segment_init (&segment, GST_FORMAT_BYTES);
2171 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2173 GST_OBJECT_LOCK (qtmux);
2175 if (qtmux->timescale == 0) {
2176 guint32 suggested_timescale = 0;
2179 /* Calculate a reasonable timescale for the moov:
2180 * If there is video, it is the biggest video track timescale or an even
2181 * multiple of it if it's smaller than 1800.
2182 * Otherwise it is 1800 */
2183 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
2184 GstCollectData *cdata = (GstCollectData *) walk->data;
2185 GstQTPad *qpad = (GstQTPad *) cdata;
2191 if (!qpad->trak->mdia.minf.vmhd)
2194 suggested_timescale =
2195 MAX (qpad->trak->mdia.mdhd.time_info.timescale, suggested_timescale);
2198 if (suggested_timescale == 0)
2199 suggested_timescale = 1800;
2201 while (suggested_timescale < 1800)
2202 suggested_timescale *= 2;
2204 qtmux->timescale = suggested_timescale;
2207 /* initialize our moov recovery file */
2208 if (qtmux->moov_recov_file_path) {
2209 gst_qt_mux_prepare_moov_recovery (qtmux);
2212 /* Make sure the first time we update the moov, we'll
2213 * include any tagsetter tags */
2214 qtmux->tags_changed = TRUE;
2216 GST_OBJECT_UNLOCK (qtmux);
2219 * send mdat header if already needed, and mark position for later update.
2220 * We don't send ftyp now if we are on fast start mode, because we can
2221 * better fine tune using the information we gather to create the whole moov
2224 switch (qtmux->mux_mode) {
2225 case GST_QT_MUX_MODE_MOOV_AT_END:
2226 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2227 if (ret != GST_FLOW_OK)
2230 /* Store this as the mdat offset for later updating
2231 * when we write the moov */
2232 qtmux->mdat_pos = qtmux->header_size;
2233 /* extended atom in case we go over 4GB while writing and need
2234 * the full 64-bit atom */
2236 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2239 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2241 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2242 if (ret != GST_FLOW_OK)
2245 /* Pad ftyp out to an 8-byte boundary before starting the moov
2246 * ping pong region. It should be well less than 1 disk sector,
2247 * unless there's a bajillion compatible types listed,
2248 * but let's be sure the free atom doesn't cross a sector
2249 * boundary anyway */
2250 if (qtmux->header_size % 8) {
2251 /* Extra 8 bytes for the padding free atom header */
2252 guint padding = (guint) (16 - (qtmux->header_size % 8));
2253 GST_LOG_OBJECT (qtmux, "Rounding ftyp by %u bytes", padding);
2255 gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, padding,
2257 if (ret != GST_FLOW_OK)
2261 /* Store this as the moov offset for later updating.
2262 * We record mdat position below */
2263 qtmux->moov_pos = qtmux->header_size;
2265 /* Set up the initial 'ping' state of the ping-pong buffers */
2266 qtmux->reserved_moov_first_active = TRUE;
2268 gst_qt_mux_configure_moov (qtmux);
2269 gst_qt_mux_setup_metadata (qtmux);
2270 /* Empty free atom to begin, starting on an 8-byte boundary */
2271 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, 8, FALSE);
2272 if (ret != GST_FLOW_OK)
2274 /* Moov header, not padded yet */
2275 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2276 if (ret != GST_FLOW_OK)
2278 /* The moov we just sent contains the 'base' size of the moov, before
2279 * we put in any time-dependent per-trak data. Use that to make
2280 * a good estimate of how much extra to reserve */
2281 /* Calculate how much space to reserve for our MOOV atom.
2282 * We actually reserve twice that, for ping-pong buffers */
2283 qtmux->base_moov_size = qtmux->last_moov_size;
2284 GST_LOG_OBJECT (qtmux, "Base moov size is %u before any indexes",
2285 qtmux->base_moov_size);
2286 qtmux->reserved_moov_size = qtmux->base_moov_size +
2287 gst_util_uint64_scale (reserved_max_duration,
2288 reserved_bytes_per_sec_per_trak *
2289 atom_moov_get_trak_count (qtmux->moov), GST_SECOND);
2291 /* Need space for at least 4 atom headers. More really, but
2292 * this as an absolute minimum */
2293 if (qtmux->reserved_moov_size < 4 * 8)
2294 goto reserved_moov_too_small;
2296 GST_DEBUG_OBJECT (qtmux, "reserving header area of size %u",
2297 2 * qtmux->reserved_moov_size + 16);
2299 GST_OBJECT_LOCK (qtmux);
2300 qtmux->reserved_duration_remaining =
2301 gst_util_uint64_scale (qtmux->reserved_moov_size -
2302 qtmux->base_moov_size, GST_SECOND,
2303 reserved_bytes_per_sec_per_trak *
2304 atom_moov_get_trak_count (qtmux->moov));
2305 GST_OBJECT_UNLOCK (qtmux);
2307 /* Now that we know how much reserved space is targetted,
2308 * output a free atom to fill the extra reserved */
2309 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2310 qtmux->reserved_moov_size - qtmux->base_moov_size, FALSE);
2311 if (ret != GST_FLOW_OK)
2314 /* Then a free atom containing 'pong' buffer, with an
2315 * extra 8 bytes to account for the free atom header itself */
2316 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2317 qtmux->reserved_moov_size + 8, FALSE);
2318 if (ret != GST_FLOW_OK)
2321 /* extra atoms go after the free/moov(s), before the mdat */
2323 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2324 if (ret != GST_FLOW_OK)
2327 qtmux->mdat_pos = qtmux->header_size;
2328 /* extended atom in case we go over 4GB while writing and need
2329 * the full 64-bit atom */
2331 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2334 case GST_QT_MUX_MODE_FAST_START:
2335 GST_OBJECT_LOCK (qtmux);
2336 qtmux->fast_start_file = g_fopen (qtmux->fast_start_file_path, "wb+");
2337 if (!qtmux->fast_start_file)
2339 GST_OBJECT_UNLOCK (qtmux);
2340 /* send a dummy buffer for preroll */
2341 ret = gst_qt_mux_send_buffer (qtmux, gst_buffer_new (), NULL, FALSE);
2343 case GST_QT_MUX_MODE_FRAGMENTED:
2344 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2345 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2346 if (ret != GST_FLOW_OK)
2348 /* store the moov pos so we can update the duration later
2349 * in non-streamable mode */
2350 qtmux->moov_pos = qtmux->header_size;
2352 GST_DEBUG_OBJECT (qtmux, "fragment duration %d ms, writing headers",
2353 qtmux->fragment_duration);
2354 /* also used as snapshot marker to indicate fragmented file */
2355 qtmux->fragment_sequence = 1;
2356 /* prepare moov and/or tags */
2357 gst_qt_mux_configure_moov (qtmux);
2358 gst_qt_mux_setup_metadata (qtmux);
2359 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2360 if (ret != GST_FLOW_OK)
2364 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2365 if (ret != GST_FLOW_OK)
2367 /* prepare index if not streamable */
2368 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED)
2369 qtmux->mfra = atom_mfra_new (qtmux->context);
2377 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2378 ("Cannot create an ISML file with 0 fragment duration"), (NULL));
2379 return GST_FLOW_ERROR;
2381 reserved_moov_too_small:
2383 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2384 ("Not enough reserved space for creating headers"), (NULL));
2385 return GST_FLOW_ERROR;
2389 GST_ELEMENT_ERROR (qtmux, RESOURCE, OPEN_READ_WRITE,
2390 (("Could not open temporary file \"%s\""),
2391 qtmux->fast_start_file_path), GST_ERROR_SYSTEM);
2392 GST_OBJECT_UNLOCK (qtmux);
2393 return GST_FLOW_ERROR;
2397 static GstFlowReturn
2398 gst_qt_mux_send_last_buffers (GstQTMux * qtmux)
2400 GstFlowReturn ret = GST_FLOW_OK;
2403 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2404 GstCollectData *cdata = (GstCollectData *) walk->data;
2405 GstQTPad *qtpad = (GstQTPad *) cdata;
2407 /* avoid add_buffer complaining if not negotiated
2408 * in which case no buffers either, so skipping */
2409 if (!qtpad->fourcc) {
2410 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2411 GST_PAD_NAME (qtpad->collect.pad));
2415 /* send last buffer; also flushes possibly queued buffers/ts */
2416 GST_DEBUG_OBJECT (qtmux, "Sending the last buffer for pad %s",
2417 GST_PAD_NAME (qtpad->collect.pad));
2418 ret = gst_qt_mux_add_buffer (qtmux, qtpad, NULL);
2419 if (ret != GST_FLOW_OK) {
2420 GST_WARNING_OBJECT (qtmux, "Failed to send last buffer for %s, "
2421 "flow return: %s", GST_PAD_NAME (qtpad->collect.pad),
2422 gst_flow_get_name (ret));
2430 gst_qt_mux_update_global_statistics (GstQTMux * qtmux)
2434 /* for setting some subtitles fields */
2435 guint max_width = 0;
2436 guint max_height = 0;
2438 qtmux->first_ts = qtmux->last_dts = GST_CLOCK_TIME_NONE;
2440 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2441 GstCollectData *cdata = (GstCollectData *) walk->data;
2442 GstQTPad *qtpad = (GstQTPad *) cdata;
2444 if (!qtpad->fourcc) {
2445 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2446 GST_PAD_NAME (qtpad->collect.pad));
2450 /* having flushed above, can check for buffers now */
2451 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2452 /* determine max stream duration */
2453 if (!GST_CLOCK_TIME_IS_VALID (qtmux->last_dts)
2454 || qtpad->last_dts > qtmux->last_dts) {
2455 qtmux->last_dts = qtpad->last_dts;
2457 if (!GST_CLOCK_TIME_IS_VALID (qtmux->first_ts)
2458 || qtpad->first_ts < qtmux->first_ts) {
2459 qtmux->first_ts = qtpad->first_ts;
2463 /* subtitles need to know the video width/height,
2464 * it is stored shifted 16 bits to the left according to the
2466 max_width = MAX (max_width, (qtpad->trak->tkhd.width >> 16));
2467 max_height = MAX (max_height, (qtpad->trak->tkhd.height >> 16));
2469 /* update average bitrate of streams if needed */
2471 guint32 avgbitrate = 0;
2472 guint32 maxbitrate = qtpad->max_bitrate;
2474 if (qtpad->avg_bitrate)
2475 avgbitrate = qtpad->avg_bitrate;
2476 else if (qtpad->total_duration > 0)
2477 avgbitrate = (guint32) gst_util_uint64_scale_round (qtpad->total_bytes,
2478 8 * GST_SECOND, qtpad->total_duration);
2480 atom_trak_update_bitrates (qtpad->trak, avgbitrate, maxbitrate);
2484 /* need to update values on subtitle traks now that we know the
2485 * max width and height */
2486 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2487 GstCollectData *cdata = (GstCollectData *) walk->data;
2488 GstQTPad *qtpad = (GstQTPad *) cdata;
2490 if (!qtpad->fourcc) {
2491 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2492 GST_PAD_NAME (qtpad->collect.pad));
2496 if (qtpad->fourcc == FOURCC_tx3g) {
2497 atom_trak_tx3g_update_dimension (qtpad->trak, max_width, max_height);
2502 /* Called after gst_qt_mux_update_global_statistics() updates the
2503 * first_ts tracking, to create/set edit lists for delayed streams */
2505 gst_qt_mux_update_edit_lists (GstQTMux * qtmux)
2509 GST_DEBUG_OBJECT (qtmux, "Media first ts selected: %" GST_TIME_FORMAT,
2510 GST_TIME_ARGS (qtmux->first_ts));
2511 /* add/update EDTSs for late streams. configure_moov will have
2512 * set the trak durations above by summing the sample tables,
2513 * here we extend that if needing to insert an empty segment */
2514 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2515 GstCollectData *cdata = (GstCollectData *) walk->data;
2516 GstQTPad *qtpad = (GstQTPad *) cdata;
2518 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2519 guint32 lateness = 0;
2520 guint32 duration = qtpad->trak->tkhd.duration;
2523 has_gap = (qtpad->first_ts > (qtmux->first_ts + qtpad->dts_adjustment));
2528 diff = qtpad->first_ts - (qtmux->first_ts + qtpad->dts_adjustment);
2529 lateness = gst_util_uint64_scale_round (diff,
2530 qtmux->timescale, GST_SECOND);
2533 GST_DEBUG_OBJECT (qtmux,
2534 "Pad %s is a late stream by %" GST_TIME_FORMAT,
2535 GST_PAD_NAME (qtpad->collect.pad), GST_TIME_ARGS (lateness));
2537 atom_trak_set_elst_entry (qtpad->trak, 0, lateness, (guint32) - 1,
2538 (guint32) (1 * 65536.0));
2542 /* Always write an edit list for the whole track. In general this is not
2543 * necessary except for the case of having a gap or DTS adjustment but
2544 * it allows to give the whole track's duration in the usually more
2545 * accurate media timescale
2548 GstClockTime ctts = 0;
2549 guint32 media_start;
2551 if (qtpad->first_ts > qtpad->first_dts)
2552 ctts = qtpad->first_ts - qtpad->first_dts;
2554 media_start = gst_util_uint64_scale_round (ctts,
2555 atom_trak_get_timescale (qtpad->trak), GST_SECOND);
2557 atom_trak_set_elst_entry (qtpad->trak, 1, duration, media_start,
2558 (guint32) (1 * 65536.0));
2561 /* need to add the empty time to the trak duration */
2562 duration += lateness;
2564 qtpad->trak->tkhd.duration = duration;
2565 if (qtpad->tc_trak) {
2566 qtpad->tc_trak->tkhd.duration = duration;
2567 qtpad->tc_trak->mdia.mdhd.time_info.duration = duration;
2570 /* And possibly grow the moov duration */
2571 if (duration > qtmux->moov->mvhd.time_info.duration) {
2572 qtmux->moov->mvhd.time_info.duration = duration;
2573 qtmux->moov->mvex.mehd.fragment_duration = duration;
2579 static GstFlowReturn
2580 gst_qt_mux_update_timecode (GstQTMux * qtmux)
2585 guint64 offset = qtmux->tc_pos;
2587 g_assert (qtmux->tc_pos != -1);
2589 gst_segment_init (&segment, GST_FORMAT_BYTES);
2590 segment.start = offset;
2591 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2593 buf = gst_buffer_new_and_alloc (4);
2594 gst_buffer_map (buf, &map, GST_MAP_WRITE);
2596 GST_WRITE_UINT32_BE (map.data,
2597 gst_video_time_code_frames_since_daily_jam (qtmux->first_tc));
2598 gst_buffer_unmap (buf, &map);
2600 /* Reset this value, so the timecode won't be re-rewritten */
2603 return gst_qt_mux_send_buffer (qtmux, buf, &offset, FALSE);
2606 static GstFlowReturn
2607 gst_qt_mux_stop_file (GstQTMux * qtmux)
2609 gboolean ret = GST_FLOW_OK;
2610 guint64 offset = 0, size = 0;
2611 gboolean large_file;
2613 GST_DEBUG_OBJECT (qtmux, "Updating remaining values and sending last data");
2615 /* pushing last buffers for each pad */
2616 if ((ret = gst_qt_mux_send_last_buffers (qtmux)) != GST_FLOW_OK)
2619 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) {
2620 /* Streamable mode; no need to write duration or MFRA */
2621 GST_DEBUG_OBJECT (qtmux, "streamable file; nothing to stop");
2625 gst_qt_mux_update_global_statistics (qtmux);
2626 if (qtmux->tc_pos != -1) {
2627 /* File is being stopped and timecode hasn't been updated. Update it now
2628 * with whatever we have */
2629 ret = gst_qt_mux_update_timecode (qtmux);
2630 if (ret != GST_FLOW_OK)
2634 switch (qtmux->mux_mode) {
2635 case GST_QT_MUX_MODE_FRAGMENTED:{
2637 guint8 *data = NULL;
2641 GST_DEBUG_OBJECT (qtmux, "adding mfra");
2642 if (!atom_mfra_copy_data (qtmux->mfra, &data, &size, &offset))
2643 goto serialize_error;
2644 buf = _gst_buffer_new_take_data (data, offset);
2645 ret = gst_qt_mux_send_buffer (qtmux, buf, NULL, FALSE);
2646 if (ret != GST_FLOW_OK)
2649 /* only mvex duration is updated,
2650 * mvhd should be consistent with empty moov
2651 * (but TODO maybe some clients do not handle that well ?) */
2652 qtmux->moov->mvex.mehd.fragment_duration =
2653 gst_util_uint64_scale (qtmux->last_dts, qtmux->timescale, GST_SECOND);
2654 GST_DEBUG_OBJECT (qtmux, "rewriting moov with mvex duration %"
2655 GST_TIME_FORMAT, GST_TIME_ARGS (qtmux->last_dts));
2656 /* seek and rewrite the header */
2657 gst_segment_init (&segment, GST_FORMAT_BYTES);
2658 segment.start = qtmux->moov_pos;
2659 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2660 /* no need to seek back */
2661 return gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2663 case GST_QT_MUX_MODE_ROBUST_RECORDING:{
2664 ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
2665 if (G_UNLIKELY (ret != GST_FLOW_OK))
2667 /* Finalise by writing the final size into the mdat. Up until now
2668 * it's been 0, which means 'rest of the file'
2669 * No need to seek back after this, we won't write any more */
2670 return gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2671 qtmux->mdat_size, NULL, TRUE);
2677 /* Moov-at-end or fast-start mode from here down */
2678 gst_qt_mux_configure_moov (qtmux);
2680 gst_qt_mux_update_edit_lists (qtmux);
2682 /* tags into file metadata */
2683 gst_qt_mux_setup_metadata (qtmux);
2685 large_file = (qtmux->mdat_size > MDAT_LARGE_FILE_LIMIT);
2687 switch (qtmux->mux_mode) {
2688 case GST_QT_MUX_MODE_FAST_START:{
2689 /* if faststart, update the offset of the atoms in the movie with the offset
2690 * that the movie headers before mdat will cause.
2691 * Also, send the ftyp */
2694 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2695 if (ret != GST_FLOW_OK) {
2698 /* copy into NULL to obtain size */
2699 if (!atom_moov_copy_data (qtmux->moov, NULL, &size, &offset))
2700 goto serialize_error;
2701 GST_DEBUG_OBJECT (qtmux, "calculated moov atom size %" G_GUINT64_FORMAT,
2703 offset += qtmux->header_size + (large_file ? 16 : 8);
2705 /* sum up with the extra atoms size */
2706 ret = gst_qt_mux_send_extra_atoms (qtmux, FALSE, &offset, FALSE);
2707 if (ret != GST_FLOW_OK)
2712 offset = qtmux->header_size;
2716 /* Now that we know the size of moov + extra atoms, we can adjust
2717 * the chunk offsets stored into the moov */
2718 atom_moov_chunks_set_offset (qtmux->moov, offset);
2720 /* write out moov and extra atoms */
2721 /* note: as of this point, we no longer care about tracking written data size,
2722 * since there is no more use for it anyway */
2723 ret = gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2724 if (ret != GST_FLOW_OK)
2728 ret = gst_qt_mux_send_extra_atoms (qtmux, TRUE, NULL, FALSE);
2729 if (ret != GST_FLOW_OK)
2732 switch (qtmux->mux_mode) {
2733 case GST_QT_MUX_MODE_MOOV_AT_END:
2735 /* mdat needs update iff not using faststart */
2736 GST_DEBUG_OBJECT (qtmux, "updating mdat size");
2737 ret = gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2738 qtmux->mdat_size, NULL, FALSE);
2739 /* note; no seeking back to the end of file is done,
2740 * since we no longer write anything anyway */
2743 case GST_QT_MUX_MODE_FAST_START:
2745 /* send mdat atom and move buffered data into it */
2746 /* mdat_size = accumulated (buffered data) */
2747 ret = gst_qt_mux_send_mdat_header (qtmux, NULL, qtmux->mdat_size,
2749 if (ret != GST_FLOW_OK)
2751 ret = gst_qt_mux_send_buffered_data (qtmux, NULL);
2752 if (ret != GST_FLOW_OK)
2757 g_assert_not_reached ();
2765 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
2766 ("Failed to serialize moov"));
2767 return GST_FLOW_ERROR;
2771 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Failed to send ftyp"));
2772 return GST_FLOW_ERROR;
2776 static GstFlowReturn
2777 gst_qt_mux_pad_fragment_add_buffer (GstQTMux * qtmux, GstQTPad * pad,
2778 GstBuffer * buf, gboolean force, guint32 nsamples, gint64 dts,
2779 guint32 delta, guint32 size, gboolean sync, gint64 pts_offset)
2781 GstFlowReturn ret = GST_FLOW_OK;
2783 /* setup if needed */
2784 if (G_UNLIKELY (!pad->traf || force))
2788 /* flush pad fragment if threshold reached,
2789 * or at new keyframe if we should be minding those in the first place */
2790 if (G_UNLIKELY (force || (sync && pad->sync) ||
2791 pad->fragment_duration < (gint64) delta)) {
2793 guint64 size = 0, offset = 0;
2794 guint8 *data = NULL;
2796 guint i, total_size;
2798 /* now we know where moof ends up, update offset in tfra */
2800 atom_tfra_update_offset (pad->tfra, qtmux->header_size);
2802 moof = atom_moof_new (qtmux->context, qtmux->fragment_sequence);
2803 /* takes ownership */
2804 atom_moof_add_traf (moof, pad->traf);
2806 atom_moof_copy_data (moof, &data, &size, &offset);
2807 buffer = _gst_buffer_new_take_data (data, offset);
2808 GST_LOG_OBJECT (qtmux, "writing moof size %" G_GSIZE_FORMAT,
2809 gst_buffer_get_size (buffer));
2810 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->header_size, FALSE);
2812 /* and actual data */
2814 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2816 gst_buffer_get_size (atom_array_index (&pad->fragment_buffers, i));
2819 GST_LOG_OBJECT (qtmux, "writing %d buffers, total_size %d",
2820 atom_array_get_len (&pad->fragment_buffers), total_size);
2821 if (ret == GST_FLOW_OK)
2822 ret = gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, total_size,
2824 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2825 if (G_LIKELY (ret == GST_FLOW_OK))
2826 ret = gst_qt_mux_send_buffer (qtmux,
2827 atom_array_index (&pad->fragment_buffers, i), &qtmux->header_size,
2830 gst_buffer_unref (atom_array_index (&pad->fragment_buffers, i));
2833 atom_array_clear (&pad->fragment_buffers);
2834 atom_moof_free (moof);
2835 qtmux->fragment_sequence++;
2840 if (G_UNLIKELY (!pad->traf)) {
2841 GST_LOG_OBJECT (qtmux, "setting up new fragment");
2842 pad->traf = atom_traf_new (qtmux->context, atom_trak_get_id (pad->trak));
2843 atom_array_init (&pad->fragment_buffers, 512);
2844 pad->fragment_duration = gst_util_uint64_scale (qtmux->fragment_duration,
2845 atom_trak_get_timescale (pad->trak), 1000);
2847 if (G_UNLIKELY (qtmux->mfra && !pad->tfra)) {
2848 pad->tfra = atom_tfra_new (qtmux->context, atom_trak_get_id (pad->trak));
2849 atom_mfra_add_tfra (qtmux->mfra, pad->tfra);
2853 /* add buffer and metadata */
2854 atom_traf_add_samples (pad->traf, delta, size, sync, pts_offset,
2856 atom_array_append (&pad->fragment_buffers, buf, 256);
2857 pad->fragment_duration -= delta;
2860 guint32 sn = atom_traf_get_sample_num (pad->traf);
2862 if ((sync && pad->sync) || (sn == 1 && !pad->sync))
2863 atom_tfra_add_entry (pad->tfra, dts, sn);
2866 if (G_UNLIKELY (force))
2872 /* Here's the clever bit of robust recording: Updating the moov
2873 * header is done using a ping-pong scheme inside 2 blocks of size
2874 * 'reserved_moov_size' at the start of the file, in such a way that the
2875 * file on-disk is always valid if interrupted.
2876 * Inside the reserved space, we have 2 pairs of free + moov atoms
2877 * (in that order), free-A + moov-A @ offset 0 and free-B + moov-B at
2878 * at offset "reserved_moov_size".
2880 * 1. Free-A has 0 size payload, moov-A immediately after is
2881 * active/current, and is padded with an internal Free atom to
2882 * end at reserved_space/2. Free-B is at reserved_space/2, sized
2883 * to cover the remaining free space (including moov-B).
2884 * 2. We write moov-B (which is invisible inside free-B), and pad it to
2885 * end at the end of free space. Then, we update free-A to size
2886 * reserved_space/2 + sizeof(free-B), which hides moov-A and the
2887 * free-B header, and makes moov-B active.
2888 * 3. Rewrite moov-A inside free-A, with padding out to free-B.
2889 * Change the size of free-A to make moov-A active again.
2890 * 4. Rinse and repeat.
2893 static GstFlowReturn
2894 gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux)
2898 guint64 freeA_offset;
2899 guint32 new_freeA_size;
2900 guint64 new_moov_offset;
2902 /* Update moov info, then seek and rewrite the MOOV atom */
2903 gst_qt_mux_update_global_statistics (qtmux);
2904 gst_qt_mux_configure_moov (qtmux);
2906 gst_qt_mux_update_edit_lists (qtmux);
2908 /* tags into file metadata */
2909 gst_qt_mux_setup_metadata (qtmux);
2911 /* chunks position is set relative to the first byte of the
2912 * MDAT atom payload. Set the overall offset into the file */
2913 atom_moov_chunks_set_offset (qtmux->moov, qtmux->header_size);
2915 /* Calculate which moov to rewrite. qtmux->moov_pos points to
2916 * the start of the free-A header */
2917 freeA_offset = qtmux->moov_pos;
2918 if (qtmux->reserved_moov_first_active) {
2919 GST_DEBUG_OBJECT (qtmux, "Updating pong moov header");
2920 /* After this, freeA will include itself, moovA, plus the freeB
2922 new_freeA_size = qtmux->reserved_moov_size + 16;
2924 GST_DEBUG_OBJECT (qtmux, "Updating ping moov header");
2927 /* the moov we update is after free-A, calculate its offset */
2928 new_moov_offset = freeA_offset + new_freeA_size;
2930 /* Swap ping-pong cadence marker */
2931 qtmux->reserved_moov_first_active = !qtmux->reserved_moov_first_active;
2933 /* seek and rewrite the MOOV atom */
2934 gst_segment_init (&segment, GST_FORMAT_BYTES);
2935 segment.start = new_moov_offset;
2936 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2939 gst_qt_mux_send_moov (qtmux, NULL, qtmux->reserved_moov_size, FALSE,
2941 if (ret != GST_FLOW_OK)
2944 /* Update the estimated recording space remaining, based on amount used so
2945 * far and duration muxed so far */
2946 if (qtmux->last_moov_size > qtmux->base_moov_size && qtmux->last_dts > 0) {
2947 GstClockTime remain;
2948 GstClockTime time_muxed = qtmux->last_dts;
2951 gst_util_uint64_scale (qtmux->reserved_moov_size -
2952 qtmux->last_moov_size, time_muxed,
2953 qtmux->last_moov_size - qtmux->base_moov_size);
2954 /* Always under-estimate slightly, so users
2955 * have time to stop muxing before we run out */
2956 if (remain < GST_SECOND / 2)
2959 remain -= GST_SECOND / 2;
2961 GST_INFO_OBJECT (qtmux,
2962 "Reserved %u header bytes. Used %u in %" GST_TIME_FORMAT
2963 ". Remaining now %u or approx %" G_GUINT64_FORMAT " ns\n",
2964 qtmux->reserved_moov_size, qtmux->last_moov_size,
2965 GST_TIME_ARGS (qtmux->last_dts),
2966 qtmux->reserved_moov_size - qtmux->last_moov_size, remain);
2968 GST_OBJECT_LOCK (qtmux);
2969 qtmux->reserved_duration_remaining = remain;
2970 qtmux->muxed_since_last_update = 0;
2971 GST_DEBUG_OBJECT (qtmux, "reserved remaining duration now %"
2972 G_GUINT64_FORMAT, qtmux->reserved_duration_remaining);
2973 GST_OBJECT_UNLOCK (qtmux);
2977 /* Now update the moov-A size. Don't pass offset, since we don't need
2978 * send_free_atom() to seek for us - all our callers seek back to
2979 * where they need after this, or they don't need it */
2980 gst_segment_init (&segment, GST_FORMAT_BYTES);
2981 segment.start = freeA_offset;
2982 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2984 ret = gst_qt_mux_send_free_atom (qtmux, NULL, new_freeA_size, TRUE);
2989 static GstFlowReturn
2990 gst_qt_mux_robust_recording_update (GstQTMux * qtmux, GstClockTime position)
2993 GstFlowReturn flow_ret;
2995 guint64 mdat_offset = qtmux->mdat_pos + 16 + qtmux->mdat_size;
2997 GST_OBJECT_LOCK (qtmux);
2998 if (qtmux->reserved_moov_update_period == GST_CLOCK_TIME_NONE) {
2999 GST_OBJECT_UNLOCK (qtmux);
3003 /* Update if position is > the threshold or there's been no update yet */
3004 if (qtmux->last_moov_update != GST_CLOCK_TIME_NONE &&
3005 (position <= qtmux->last_moov_update ||
3006 (position - qtmux->last_moov_update) <
3007 qtmux->reserved_moov_update_period)) {
3008 /* Update the offset of how much we've muxed, so the
3009 * report of remaining space keeps counting down */
3010 if (position > qtmux->last_moov_update &&
3011 position - qtmux->last_moov_update > qtmux->muxed_since_last_update) {
3012 GST_LOG_OBJECT (qtmux,
3013 "Muxed time %" G_GUINT64_FORMAT " since last moov update",
3014 qtmux->muxed_since_last_update);
3015 qtmux->muxed_since_last_update = position - qtmux->last_moov_update;
3017 GST_OBJECT_UNLOCK (qtmux);
3018 return GST_FLOW_OK; /* No update needed yet */
3021 qtmux->last_moov_update = position;
3022 GST_OBJECT_UNLOCK (qtmux);
3024 GST_DEBUG_OBJECT (qtmux, "Update moov atom, position %" GST_TIME_FORMAT
3025 " mdat starts @ %" G_GUINT64_FORMAT " we were a %" G_GUINT64_FORMAT,
3026 GST_TIME_ARGS (position), qtmux->mdat_pos, mdat_offset);
3028 flow_ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
3029 if (G_UNLIKELY (flow_ret != GST_FLOW_OK))
3032 /* Seek back to previous position */
3033 gst_segment_init (&segment, GST_FORMAT_BYTES);
3034 segment.start = mdat_offset;
3035 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3040 static GstFlowReturn
3041 gst_qt_mux_register_and_push_sample (GstQTMux * qtmux, GstQTPad * pad,
3042 GstBuffer * buffer, gboolean is_last_buffer, guint nsamples,
3043 gint64 last_dts, gint64 scaled_duration, guint sample_size,
3044 guint64 chunk_offset, gboolean sync, gboolean do_pts, gint64 pts_offset)
3046 GstFlowReturn ret = GST_FLOW_OK;
3048 /* note that a new chunk is started each time (not fancy but works) */
3049 if (qtmux->moov_recov_file) {
3050 if (!atoms_recov_write_trak_samples (qtmux->moov_recov_file, pad->trak,
3051 nsamples, (gint32) scaled_duration, sample_size, chunk_offset, sync,
3052 do_pts, pts_offset)) {
3053 GST_WARNING_OBJECT (qtmux, "Failed to write sample information to "
3054 "recovery file, disabling recovery");
3055 fclose (qtmux->moov_recov_file);
3056 qtmux->moov_recov_file = NULL;
3060 switch (qtmux->mux_mode) {
3061 case GST_QT_MUX_MODE_MOOV_AT_END:
3062 case GST_QT_MUX_MODE_FAST_START:
3063 case GST_QT_MUX_MODE_ROBUST_RECORDING:
3064 atom_trak_add_samples (pad->trak, nsamples, (gint32) scaled_duration,
3065 sample_size, chunk_offset, sync, pts_offset);
3066 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->mdat_size, TRUE);
3067 /* Check if it's time to re-write the headers in robust-recording mode */
3068 if (ret == GST_FLOW_OK
3069 && qtmux->mux_mode == GST_QT_MUX_MODE_ROBUST_RECORDING)
3070 ret = gst_qt_mux_robust_recording_update (qtmux, pad->total_duration);
3072 case GST_QT_MUX_MODE_FRAGMENTED:
3073 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
3074 /* ensure that always sync samples are marked as such */
3075 ret = gst_qt_mux_pad_fragment_add_buffer (qtmux, pad, buffer,
3076 is_last_buffer, nsamples, last_dts, (gint32) scaled_duration,
3077 sample_size, !pad->sync || sync, pts_offset);
3084 static GstFlowReturn
3085 gst_qt_mux_check_and_update_timecode (GstQTMux * qtmux, GstQTPad * pad,
3086 GstBuffer * buf, GstFlowReturn ret)
3088 if (buf != NULL && (pad->tc_trak == NULL || qtmux->tc_pos != -1)) {
3089 GstVideoTimeCodeMeta *tc_meta = gst_buffer_get_video_time_code_meta (buf);
3091 GstVideoTimeCode *tc = &tc_meta->tc;
3094 guint32 frames_since_daily_jam;
3096 /* This means we never got a timecode before */
3097 if (qtmux->first_tc == NULL) {
3098 #ifndef GST_DISABLE_GST_DEBUG
3099 gchar *tc_str = gst_video_time_code_to_string (tc);
3100 GST_DEBUG_OBJECT (qtmux, "Found first timecode %s", tc_str);
3103 g_assert (pad->tc_trak == NULL);
3104 tc_buf = gst_buffer_new_allocate (NULL, 4, NULL);
3105 qtmux->first_tc = gst_video_time_code_copy (tc);
3106 /* If frames are out of order, the frame we're currently getting might
3107 * not be the first one. Just write a 0 timecode for now and wait
3108 * until we receive a timecode that's lower than the current one */
3109 if (pad->is_out_of_order) {
3110 qtmux->first_pts = GST_BUFFER_PTS (buf);
3111 frames_since_daily_jam = 0;
3112 /* Position to rewrite */
3113 qtmux->tc_pos = qtmux->mdat_size;
3115 frames_since_daily_jam =
3116 gst_video_time_code_frames_since_daily_jam (qtmux->first_tc);
3117 frames_since_daily_jam = GUINT32_TO_BE (frames_since_daily_jam);
3119 /* Write the timecode trak now */
3120 pad->tc_trak = atom_trak_new (qtmux->context);
3121 atom_moov_add_trak (qtmux->moov, pad->tc_trak);
3123 pad->trak->tref = atom_tref_new (FOURCC_tmcd);
3124 atom_tref_add_entry (pad->trak->tref, pad->tc_trak->tkhd.track_ID);
3126 atom_trak_set_timecode_type (pad->tc_trak, qtmux->context,
3129 szret = gst_buffer_fill (tc_buf, 0, &frames_since_daily_jam, 4);
3130 g_assert (szret == 4);
3132 atom_trak_add_samples (pad->tc_trak, 1, 1, 4, qtmux->mdat_size, FALSE,
3134 ret = gst_qt_mux_send_buffer (qtmux, tc_buf, &qtmux->mdat_size, TRUE);
3135 } else if (pad->is_out_of_order) {
3136 /* Check for a lower timecode than the one stored */
3137 g_assert (pad->tc_trak != NULL);
3138 if (GST_BUFFER_DTS (buf) <= qtmux->first_pts) {
3139 if (gst_video_time_code_compare (tc, qtmux->first_tc) == -1) {
3140 gst_video_time_code_free (qtmux->first_tc);
3141 qtmux->first_tc = gst_video_time_code_copy (tc);
3144 guint64 bk_size = qtmux->mdat_size;
3146 /* If this frame's DTS is after the first PTS received, it means
3147 * we've already received the first frame to be presented. Otherwise
3148 * the decoder would need to go back in time */
3149 gst_qt_mux_update_timecode (qtmux);
3151 /* Reset writing position */
3152 gst_segment_init (&segment, GST_FORMAT_BYTES);
3153 segment.start = bk_size;
3154 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3163 * Here we push the buffer and update the tables in the track atoms
3165 static GstFlowReturn
3166 gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad, GstBuffer * buf)
3168 GstBuffer *last_buf = NULL;
3169 GstClockTime duration;
3170 guint nsamples, sample_size;
3171 guint64 chunk_offset;
3172 gint64 last_dts, scaled_duration;
3173 gint64 pts_offset = 0;
3174 gboolean sync = FALSE;
3175 GstFlowReturn ret = GST_FLOW_OK;
3178 goto not_negotiated;
3180 /* if this pad has a prepare function, call it */
3181 if (pad->prepare_buf_func != NULL) {
3182 buf = pad->prepare_buf_func (pad, buf, qtmux);
3185 last_buf = pad->last_buf;
3187 ret = gst_qt_mux_check_and_update_timecode (qtmux, pad, buf, ret);
3189 if (last_buf == NULL) {
3190 #ifndef GST_DISABLE_GST_DEBUG
3192 GST_DEBUG_OBJECT (qtmux, "Pad %s has no previous buffer stored and "
3193 "received NULL buffer, doing nothing",
3194 GST_PAD_NAME (pad->collect.pad));
3196 GST_LOG_OBJECT (qtmux,
3197 "Pad %s has no previous buffer stored, storing now",
3198 GST_PAD_NAME (pad->collect.pad));
3201 pad->last_buf = buf;
3204 gst_buffer_ref (last_buf);
3207 if (!GST_BUFFER_PTS_IS_VALID (last_buf))
3210 /* if this is the first buffer, store the timestamp */
3211 if (G_UNLIKELY (pad->first_ts == GST_CLOCK_TIME_NONE) && last_buf) {
3212 if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3213 pad->first_ts = GST_BUFFER_PTS (last_buf);
3214 } else if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3215 pad->first_ts = GST_BUFFER_DTS (last_buf);
3218 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3219 pad->first_dts = pad->last_dts = GST_BUFFER_DTS (last_buf);
3220 } else if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3221 pad->first_dts = pad->last_dts = GST_BUFFER_PTS (last_buf);
3224 if (GST_CLOCK_TIME_IS_VALID (pad->first_ts)) {
3225 GST_DEBUG ("setting first_ts to %" G_GUINT64_FORMAT, pad->first_ts);
3227 GST_WARNING_OBJECT (qtmux, "First buffer for pad %s has no timestamp, "
3228 "using 0 as first timestamp", GST_PAD_NAME (pad->collect.pad));
3229 pad->first_ts = pad->first_dts = 0;
3231 GST_DEBUG_OBJECT (qtmux, "Stored first timestamp for pad %s %"
3232 GST_TIME_FORMAT, GST_PAD_NAME (pad->collect.pad),
3233 GST_TIME_ARGS (pad->first_ts));
3236 if (last_buf && buf && GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (buf)) &&
3237 GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (last_buf)) &&
3238 GST_BUFFER_DTS (buf) < GST_BUFFER_DTS (last_buf)) {
3239 GST_ERROR ("decreasing DTS value %" GST_TIME_FORMAT " < %" GST_TIME_FORMAT,
3240 GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
3241 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)));
3242 GST_BUFFER_DTS (buf) = GST_BUFFER_DTS (last_buf);
3245 /* duration actually means time delta between samples, so we calculate
3246 * the duration based on the difference in DTS or PTS, falling back
3247 * to DURATION if the other two don't exist, such as with the last
3248 * sample before EOS. Or use 0 if nothing else is available */
3249 if (GST_BUFFER_DURATION_IS_VALID (last_buf))
3250 duration = GST_BUFFER_DURATION (last_buf);
3254 if (last_buf && buf && GST_BUFFER_DTS_IS_VALID (buf)
3255 && GST_BUFFER_DTS_IS_VALID (last_buf))
3256 duration = GST_BUFFER_DTS (buf) - GST_BUFFER_DTS (last_buf);
3257 else if (last_buf && buf && GST_BUFFER_PTS_IS_VALID (buf)
3258 && GST_BUFFER_PTS_IS_VALID (last_buf))
3259 duration = GST_BUFFER_PTS (buf) - GST_BUFFER_PTS (last_buf);
3262 gst_buffer_replace (&pad->last_buf, buf);
3264 if (qtmux->current_pad != pad || qtmux->current_chunk_offset == -1) {
3265 GST_DEBUG_OBJECT (qtmux,
3266 "Switching to next chunk for pad %s:%s: offset %" G_GUINT64_FORMAT
3267 ", size %" G_GUINT64_FORMAT ", duration %" GST_TIME_FORMAT,
3268 GST_DEBUG_PAD_NAME (pad->collect.pad), qtmux->current_chunk_offset,
3269 qtmux->current_chunk_size,
3270 GST_TIME_ARGS (qtmux->current_chunk_duration));
3271 qtmux->current_pad = pad;
3272 if (qtmux->current_chunk_offset == -1)
3273 qtmux->current_chunk_offset = qtmux->mdat_size;
3275 qtmux->current_chunk_offset += qtmux->current_chunk_size;
3276 qtmux->current_chunk_size = 0;
3277 qtmux->current_chunk_duration = 0;
3280 last_dts = gst_util_uint64_scale_round (pad->last_dts,
3281 atom_trak_get_timescale (pad->trak), GST_SECOND);
3283 /* fragments only deal with 1 buffer == 1 chunk (== 1 sample) */
3284 if (pad->sample_size && !qtmux->fragment_sequence) {
3285 /* Constant size packets: usually raw audio (with many samples per
3286 buffer (= chunk)), but can also be fixed-packet-size codecs like ADPCM
3288 sample_size = pad->sample_size;
3289 if (gst_buffer_get_size (last_buf) % sample_size != 0)
3290 goto fragmented_sample;
3291 /* note: qt raw audio storage warps it implicitly into a timewise
3292 * perfect stream, discarding buffer times */
3293 if (GST_BUFFER_DURATION (last_buf) != GST_CLOCK_TIME_NONE) {
3294 nsamples = gst_util_uint64_scale_round (GST_BUFFER_DURATION (last_buf),
3295 atom_trak_get_timescale (pad->trak), GST_SECOND);
3296 duration = GST_BUFFER_DURATION (last_buf);
3298 nsamples = gst_buffer_get_size (last_buf) / sample_size;
3300 gst_util_uint64_scale_round (nsamples, GST_SECOND,
3301 atom_trak_get_timescale (pad->trak));
3304 /* timescale = samplerate */
3305 scaled_duration = 1;
3306 pad->last_dts += duration * nsamples;
3309 sample_size = gst_buffer_get_size (last_buf);
3310 if ((buf && GST_BUFFER_DTS_IS_VALID (buf))
3311 || GST_BUFFER_DTS_IS_VALID (last_buf)) {
3313 if (buf && GST_BUFFER_DTS_IS_VALID (buf)) {
3314 pad->last_dts = GST_BUFFER_DTS (buf);
3316 pad->last_dts = GST_BUFFER_DTS (last_buf) + duration;
3318 if ((gint64) (pad->last_dts) < 0) {
3319 scaled_dts = -gst_util_uint64_scale_round (-pad->last_dts,
3320 atom_trak_get_timescale (pad->trak), GST_SECOND);
3322 scaled_dts = gst_util_uint64_scale_round (pad->last_dts,
3323 atom_trak_get_timescale (pad->trak), GST_SECOND);
3325 scaled_duration = scaled_dts - last_dts;
3326 last_dts = scaled_dts;
3328 /* first convert intended timestamp (in GstClockTime resolution) to
3329 * trak timescale, then derive delta;
3330 * this ensures sums of (scale)delta add up to converted timestamp,
3331 * which only deviates at most 1/scale from timestamp itself */
3332 scaled_duration = gst_util_uint64_scale_round (pad->last_dts + duration,
3333 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts;
3334 pad->last_dts += duration;
3338 /* for computing the avg bitrate */
3339 if (G_LIKELY (last_buf)) {
3340 pad->total_bytes += gst_buffer_get_size (last_buf);
3341 pad->total_duration += duration;
3343 qtmux->current_chunk_size += gst_buffer_get_size (last_buf);
3344 qtmux->current_chunk_duration += duration;
3346 chunk_offset = qtmux->current_chunk_offset;
3348 GST_LOG_OBJECT (qtmux,
3349 "Pad (%s) dts updated to %" GST_TIME_FORMAT,
3350 GST_PAD_NAME (pad->collect.pad), GST_TIME_ARGS (pad->last_dts));
3351 GST_LOG_OBJECT (qtmux,
3352 "Adding %d samples to track, duration: %" G_GUINT64_FORMAT
3353 " size: %" G_GUINT32_FORMAT " chunk offset: %" G_GUINT64_FORMAT,
3354 nsamples, scaled_duration, sample_size, chunk_offset);
3356 /* might be a sync sample */
3358 !GST_BUFFER_FLAG_IS_SET (last_buf, GST_BUFFER_FLAG_DELTA_UNIT)) {
3359 GST_LOG_OBJECT (qtmux, "Adding new sync sample entry for track of pad %s",
3360 GST_PAD_NAME (pad->collect.pad));
3364 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3365 last_dts = gst_util_uint64_scale_round (GST_BUFFER_DTS (last_buf),
3366 atom_trak_get_timescale (pad->trak), GST_SECOND);
3368 (gint64) (gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3369 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts);
3372 last_dts = gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3373 atom_trak_get_timescale (pad->trak), GST_SECOND);
3375 GST_DEBUG ("dts: %" GST_TIME_FORMAT " pts: %" GST_TIME_FORMAT
3376 " timebase_dts: %d pts_offset: %d",
3377 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)),
3378 GST_TIME_ARGS (GST_BUFFER_PTS (last_buf)),
3379 (int) (last_dts), (int) (pts_offset));
3381 if (GST_CLOCK_TIME_IS_VALID (duration)
3382 && (qtmux->current_chunk_duration > qtmux->longest_chunk
3383 || !GST_CLOCK_TIME_IS_VALID (qtmux->longest_chunk))) {
3384 GST_DEBUG_OBJECT (qtmux,
3385 "New longest chunk found: %" GST_TIME_FORMAT ", pad %s",
3386 GST_TIME_ARGS (qtmux->current_chunk_duration),
3387 GST_PAD_NAME (pad->collect.pad));
3388 qtmux->longest_chunk = qtmux->current_chunk_duration;
3391 /* now we go and register this buffer/sample all over */
3392 ret = gst_qt_mux_register_and_push_sample (qtmux, pad, last_buf,
3393 buf == NULL, nsamples, last_dts, scaled_duration, sample_size,
3394 chunk_offset, sync, TRUE, pts_offset);
3396 /* if this is sparse and we have a next buffer, check if there is any gap
3397 * between them to insert an empty sample */
3398 if (pad->sparse && buf) {
3399 if (pad->create_empty_buffer) {
3400 GstBuffer *empty_buf;
3401 gint64 empty_duration =
3402 GST_BUFFER_TIMESTAMP (buf) - (GST_BUFFER_TIMESTAMP (last_buf) +
3404 gint64 empty_duration_scaled;
3406 empty_buf = pad->create_empty_buffer (pad, empty_duration);
3408 empty_duration_scaled = gst_util_uint64_scale_round (empty_duration,
3409 atom_trak_get_timescale (pad->trak), GST_SECOND);
3411 pad->total_bytes += gst_buffer_get_size (empty_buf);
3412 pad->total_duration += duration;
3415 gst_qt_mux_register_and_push_sample (qtmux, pad, empty_buf, FALSE, 1,
3416 last_dts + scaled_duration, empty_duration_scaled,
3417 gst_buffer_get_size (empty_buf), chunk_offset, sync, TRUE, 0);
3419 /* our only case currently is tx3g subtitles, so there is no reason to fill this yet */
3420 g_assert_not_reached ();
3421 GST_WARNING_OBJECT (qtmux,
3422 "no empty buffer creation function found for pad %s",
3423 GST_PAD_NAME (pad->collect.pad));
3428 gst_buffer_unref (buf);
3438 gst_buffer_unref (buf);
3439 gst_buffer_unref (last_buf);
3440 return GST_FLOW_ERROR;
3444 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
3445 ("Audio buffer contains fragmented sample."));
3450 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Buffer has no PTS."));
3455 GST_ELEMENT_ERROR (qtmux, CORE, NEGOTIATION, (NULL),
3456 ("format wasn't negotiated before buffer flow on pad %s",
3457 GST_PAD_NAME (pad->collect.pad)));
3459 gst_buffer_unref (buf);
3460 return GST_FLOW_NOT_NEGOTIATED;
3465 * DTS running time can be negative. There is no way to represent that in
3466 * MP4 however, thus we need to offset DTS so that it starts from 0.
3469 gst_qt_pad_adjust_buffer_dts (GstQTMux * qtmux, GstQTPad * pad,
3470 GstCollectData * cdata, GstBuffer ** buf)
3475 pts = GST_BUFFER_PTS (*buf);
3476 dts = GST_COLLECT_PADS_DTS (cdata);
3478 GST_LOG_OBJECT (qtmux, "selected pad %s with PTS %" GST_TIME_FORMAT
3479 " and DTS %" GST_STIME_FORMAT, GST_PAD_NAME (cdata->pad),
3480 GST_TIME_ARGS (pts), GST_STIME_ARGS (dts));
3482 if (!GST_CLOCK_TIME_IS_VALID (pad->dts_adjustment)) {
3483 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0)
3484 pad->dts_adjustment = -dts;
3486 pad->dts_adjustment = 0;
3489 if (pad->dts_adjustment > 0) {
3490 *buf = gst_buffer_make_writable (*buf);
3492 dts += pad->dts_adjustment;
3494 if (GST_CLOCK_TIME_IS_VALID (pts))
3495 pts += pad->dts_adjustment;
3497 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0) {
3498 GST_WARNING_OBJECT (pad, "Decreasing DTS.");
3503 GST_WARNING_OBJECT (pad, "DTS is bigger then PTS");
3507 GST_BUFFER_PTS (*buf) = pts;
3508 GST_BUFFER_DTS (*buf) = dts;
3510 GST_LOG_OBJECT (qtmux, "time adjusted to PTS %" GST_TIME_FORMAT
3511 " and DTS %" GST_TIME_FORMAT, GST_TIME_ARGS (pts), GST_TIME_ARGS (dts));
3516 find_best_pad (GstQTMux * qtmux, GstCollectPads * pads)
3519 GstQTPad *best_pad = NULL;
3521 if (qtmux->current_pad &&
3522 (qtmux->interleave_bytes != 0 || qtmux->interleave_time != 0) &&
3523 (qtmux->interleave_bytes == 0
3524 || qtmux->current_chunk_size <= qtmux->interleave_bytes)
3525 && (qtmux->interleave_time == 0
3526 || qtmux->current_chunk_duration <= qtmux->interleave_time)
3527 && qtmux->mux_mode != GST_QT_MUX_MODE_FRAGMENTED
3528 && qtmux->mux_mode != GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) {
3529 GstBuffer *tmp_buf =
3530 gst_collect_pads_peek (pads, (GstCollectData *) qtmux->current_pad);
3532 if (tmp_buf || qtmux->current_pad->last_buf) {
3533 best_pad = qtmux->current_pad;
3535 gst_buffer_unref (tmp_buf);
3536 GST_DEBUG_OBJECT (qtmux, "Reusing pad %s:%s",
3537 GST_DEBUG_PAD_NAME (best_pad->collect.pad));
3540 if (qtmux->current_pad)
3541 GST_DEBUG_OBJECT (qtmux, "Switching from pad %s:%s",
3542 GST_DEBUG_PAD_NAME (qtmux->current_pad->collect.pad));
3543 best_pad = qtmux->current_pad = NULL;
3547 GstClockTime best_time = GST_CLOCK_TIME_NONE;
3549 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
3550 GstCollectData *cdata = (GstCollectData *) walk->data;
3551 GstQTPad *qtpad = (GstQTPad *) cdata;
3553 GstClockTime timestamp;
3555 tmp_buf = gst_collect_pads_peek (pads, cdata);
3557 /* This one is newly EOS now, finish it for real */
3558 if (qtpad->last_buf) {
3559 timestamp = GST_BUFFER_DTS_OR_PTS (qtpad->last_buf);
3564 timestamp = GST_BUFFER_DTS_OR_PTS (tmp_buf);
3567 if (best_pad == NULL ||
3568 !GST_CLOCK_TIME_IS_VALID (best_time) || timestamp < best_time) {
3570 best_time = timestamp;
3574 gst_buffer_unref (tmp_buf);
3578 GST_DEBUG_OBJECT (qtmux, "Choosing pad %s:%s",
3579 GST_DEBUG_PAD_NAME (best_pad->collect.pad));
3581 GST_DEBUG_OBJECT (qtmux, "No best pad: EOS");
3588 static GstFlowReturn
3589 gst_qt_mux_collected (GstCollectPads * pads, gpointer user_data)
3591 GstFlowReturn ret = GST_FLOW_OK;
3592 GstQTMux *qtmux = GST_QT_MUX_CAST (user_data);
3593 GstQTPad *best_pad = NULL;
3595 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_STARTED)) {
3596 if ((ret = gst_qt_mux_start_file (qtmux)) != GST_FLOW_OK)
3599 qtmux->state = GST_QT_MUX_STATE_DATA;
3602 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_EOS))
3603 return GST_FLOW_EOS;
3605 best_pad = find_best_pad (qtmux, pads);
3607 /* clipping already converted to running time */
3608 if (best_pad != NULL) {
3609 GstBuffer *buf = gst_collect_pads_pop (pads, (GstCollectData *) best_pad);
3611 g_assert (buf || best_pad->last_buf);
3613 gst_qt_pad_adjust_buffer_dts (qtmux, best_pad,
3614 (GstCollectData *) best_pad, &buf);
3616 ret = gst_qt_mux_add_buffer (qtmux, best_pad, buf);
3618 qtmux->state = GST_QT_MUX_STATE_EOS;
3619 ret = gst_qt_mux_stop_file (qtmux);
3620 if (ret == GST_FLOW_OK) {
3621 GST_DEBUG_OBJECT (qtmux, "Pushing eos");
3622 gst_pad_push_event (qtmux->srcpad, gst_event_new_eos ());
3625 GST_WARNING_OBJECT (qtmux, "Failed to stop file: %s",
3626 gst_flow_get_name (ret));
3634 check_field (GQuark field_id, const GValue * value, gpointer user_data)
3636 GstStructure *structure = (GstStructure *) user_data;
3637 const GValue *other = gst_structure_id_get_value (structure, field_id);
3640 return gst_value_compare (value, other) == GST_VALUE_EQUAL;
3644 gst_qtmux_caps_is_subset_full (GstQTMux * qtmux, GstCaps * subset,
3647 GstStructure *sub_s = gst_caps_get_structure (subset, 0);
3648 GstStructure *sup_s = gst_caps_get_structure (superset, 0);
3650 return gst_structure_foreach (sub_s, check_field, sup_s);
3654 gst_qt_mux_audio_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
3656 GstPad *pad = qtpad->collect.pad;
3657 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
3658 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
3659 GstStructure *structure;
3660 const gchar *mimetype;
3661 gint rate, channels;
3662 const GValue *value = NULL;
3663 const GstBuffer *codec_data = NULL;
3664 GstQTMuxFormat format;
3665 AudioSampleEntry entry = { 0, };
3666 AtomInfo *ext_atom = NULL;
3667 gint constant_size = 0;
3668 const gchar *stream_format;
3670 qtpad->prepare_buf_func = NULL;
3672 /* does not go well to renegotiate stream mid-way, unless
3673 * the old caps are a subset of the new one (this means upstream
3674 * added more info to the caps, as both should be 'fixed' caps) */
3675 if (qtpad->fourcc) {
3676 GstCaps *current_caps;
3678 current_caps = gst_pad_get_current_caps (pad);
3679 g_assert (caps != NULL);
3681 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
3682 gst_caps_unref (current_caps);
3683 goto refuse_renegotiation;
3685 GST_DEBUG_OBJECT (qtmux,
3686 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
3687 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
3688 gst_caps_unref (current_caps);
3691 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
3692 GST_DEBUG_PAD_NAME (pad), caps);
3694 format = qtmux_klass->format;
3695 structure = gst_caps_get_structure (caps, 0);
3696 mimetype = gst_structure_get_name (structure);
3699 if (!gst_structure_get_int (structure, "channels", &channels) ||
3700 !gst_structure_get_int (structure, "rate", &rate)) {
3705 value = gst_structure_get_value (structure, "codec_data");
3707 codec_data = gst_value_get_buffer (value);
3709 qtpad->is_out_of_order = FALSE;
3711 /* set common properties */
3712 entry.sample_rate = rate;
3713 entry.channels = channels;
3715 entry.sample_size = 16;
3716 /* this is the typical compressed case */
3717 if (format == GST_QT_MUX_FORMAT_QT) {
3719 entry.compression_id = -2;
3722 /* now map onto a fourcc, and some extra properties */
3723 if (strcmp (mimetype, "audio/mpeg") == 0) {
3724 gint mpegversion = 0, mpegaudioversion = 0;
3727 gst_structure_get_int (structure, "mpegversion", &mpegversion);
3728 switch (mpegversion) {
3730 gst_structure_get_int (structure, "layer", &layer);
3731 gst_structure_get_int (structure, "mpegaudioversion",
3735 /* note: QuickTime player does not like mp3 either way in iso/mp4 */
3736 if (format == GST_QT_MUX_FORMAT_QT)
3737 entry.fourcc = FOURCC__mp3;
3739 entry.fourcc = FOURCC_mp4a;
3741 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG1_P3,
3742 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3743 qtpad->max_bitrate);
3746 g_warn_if_fail (format == GST_QT_MUX_FORMAT_MP4);
3747 entry.samples_per_packet = 384;
3748 } else if (layer == 2) {
3749 g_warn_if_fail (format == GST_QT_MUX_FORMAT_MP4);
3750 entry.samples_per_packet = 1152;
3752 g_warn_if_fail (layer == 3);
3753 entry.samples_per_packet = (mpegaudioversion <= 1) ? 1152 : 576;
3755 entry.bytes_per_sample = 2;
3759 /* check stream-format */
3760 stream_format = gst_structure_get_string (structure, "stream-format");
3761 if (stream_format) {
3762 if (strcmp (stream_format, "raw") != 0) {
3763 GST_WARNING_OBJECT (qtmux, "Unsupported AAC stream-format %s, "
3764 "please use 'raw'", stream_format);
3768 GST_WARNING_OBJECT (qtmux, "No stream-format present in caps, "
3772 if (!codec_data || gst_buffer_get_size ((GstBuffer *) codec_data) < 2) {
3773 GST_WARNING_OBJECT (qtmux, "no (valid) codec_data for AAC audio");
3778 gst_buffer_extract ((GstBuffer *) codec_data, 0, &profile, 1);
3779 /* warn if not Low Complexity profile */
3782 GST_WARNING_OBJECT (qtmux,
3783 "non-LC AAC may not run well on (Apple) QuickTime/iTunes");
3787 entry.fourcc = FOURCC_mp4a;
3789 if (format == GST_QT_MUX_FORMAT_QT)
3790 ext_atom = build_mov_aac_extension (qtpad->trak, codec_data,
3791 qtpad->avg_bitrate, qtpad->max_bitrate);
3794 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P3,
3795 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3796 qtpad->max_bitrate);
3801 } else if (strcmp (mimetype, "audio/AMR") == 0) {
3802 entry.fourcc = FOURCC_samr;
3803 entry.sample_size = 16;
3804 entry.samples_per_packet = 160;
3805 entry.bytes_per_sample = 2;
3806 ext_atom = build_amr_extension ();
3807 } else if (strcmp (mimetype, "audio/AMR-WB") == 0) {
3808 entry.fourcc = FOURCC_sawb;
3809 entry.sample_size = 16;
3810 entry.samples_per_packet = 320;
3811 entry.bytes_per_sample = 2;
3812 ext_atom = build_amr_extension ();
3813 } else if (strcmp (mimetype, "audio/x-raw") == 0) {
3816 gst_audio_info_init (&info);
3817 if (!gst_audio_info_from_caps (&info, caps))
3820 /* spec has no place for a distinction in these */
3821 if (info.finfo->width != info.finfo->depth) {
3822 GST_DEBUG_OBJECT (qtmux, "width must be same as depth!");
3826 if ((info.finfo->flags & GST_AUDIO_FORMAT_FLAG_SIGNED)) {
3827 if (info.finfo->endianness == G_LITTLE_ENDIAN)
3828 entry.fourcc = FOURCC_sowt;
3829 else if (info.finfo->endianness == G_BIG_ENDIAN)
3830 entry.fourcc = FOURCC_twos;
3832 entry.fourcc = FOURCC_sowt;
3833 /* maximum backward compatibility; only new version for > 16 bit */
3834 if (info.finfo->depth <= 16)
3836 /* not compressed in any case */
3837 entry.compression_id = 0;
3838 /* QT spec says: max at 16 bit even if sample size were actually larger,
3839 * however, most players (e.g. QuickTime!) seem to disagree, so ... */
3840 entry.sample_size = info.finfo->depth;
3841 entry.bytes_per_sample = info.finfo->depth / 8;
3842 entry.samples_per_packet = 1;
3843 entry.bytes_per_packet = info.finfo->depth / 8;
3844 entry.bytes_per_frame = entry.bytes_per_packet * info.channels;
3846 if (info.finfo->width == 8 && info.finfo->depth == 8) {
3847 /* fall back to old 8-bit version */
3848 entry.fourcc = FOURCC_raw_;
3850 entry.compression_id = 0;
3851 entry.sample_size = 8;
3853 GST_DEBUG_OBJECT (qtmux, "non 8-bit PCM must be signed");
3857 constant_size = (info.finfo->depth / 8) * info.channels;
3858 } else if (strcmp (mimetype, "audio/x-alaw") == 0) {
3859 entry.fourcc = FOURCC_alaw;
3860 entry.samples_per_packet = 1023;
3861 entry.bytes_per_sample = 2;
3862 } else if (strcmp (mimetype, "audio/x-mulaw") == 0) {
3863 entry.fourcc = FOURCC_ulaw;
3864 entry.samples_per_packet = 1023;
3865 entry.bytes_per_sample = 2;
3866 } else if (strcmp (mimetype, "audio/x-adpcm") == 0) {
3868 if (!gst_structure_get_int (structure, "block_align", &blocksize)) {
3869 GST_DEBUG_OBJECT (qtmux, "broken caps, block_align missing");
3872 /* Currently only supports WAV-style IMA ADPCM, for which the codec id is
3874 entry.fourcc = MS_WAVE_FOURCC (0x11);
3875 /* 4 byte header per channel (including one sample). 2 samples per byte
3876 remaining. Simplifying gives the following (samples per block per
3878 entry.samples_per_packet = 2 * blocksize / channels - 7;
3879 entry.bytes_per_sample = 2;
3881 entry.bytes_per_frame = blocksize;
3882 entry.bytes_per_packet = blocksize / channels;
3883 /* ADPCM has constant size packets */
3885 /* TODO: I don't really understand why this helps, but it does! Constant
3886 * size and compression_id of -2 seem to be incompatible, and other files
3887 * in the wild use this too. */
3888 entry.compression_id = -1;
3890 ext_atom = build_ima_adpcm_extension (channels, rate, blocksize);
3891 } else if (strcmp (mimetype, "audio/x-alac") == 0) {
3892 GstBuffer *codec_config;
3896 entry.fourcc = FOURCC_alac;
3897 gst_buffer_map ((GstBuffer *) codec_data, &map, GST_MAP_READ);
3898 /* let's check if codec data already comes with 'alac' atom prefix */
3899 if (!codec_data || (len = map.size) < 28) {
3900 GST_DEBUG_OBJECT (qtmux, "broken caps, codec data missing");
3901 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3904 if (GST_READ_UINT32_LE (map.data + 4) == FOURCC_alac) {
3907 gst_buffer_copy_region ((GstBuffer *) codec_data,
3908 GST_BUFFER_COPY_MEMORY, 8, len);
3910 codec_config = gst_buffer_ref ((GstBuffer *) codec_data);
3912 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3914 /* does not look good, but perhaps some trailing unneeded stuff */
3915 GST_WARNING_OBJECT (qtmux, "unexpected codec-data size, possibly broken");
3917 if (format == GST_QT_MUX_FORMAT_QT)
3918 ext_atom = build_mov_alac_extension (codec_config);
3920 ext_atom = build_codec_data_extension (FOURCC_alac, codec_config);
3921 /* set some more info */
3922 gst_buffer_map (codec_config, &map, GST_MAP_READ);
3923 entry.bytes_per_sample = 2;
3924 entry.samples_per_packet = GST_READ_UINT32_BE (map.data + 4);
3925 gst_buffer_unmap (codec_config, &map);
3926 gst_buffer_unref (codec_config);
3927 } else if (strcmp (mimetype, "audio/x-ac3") == 0) {
3928 entry.fourcc = FOURCC_ac_3;
3930 /* Fixed values according to TS 102 366 but it also mentions that
3931 * they should be ignored */
3933 entry.sample_size = 16;
3935 /* AC-3 needs an extension atom but its data can only be obtained from
3936 * the stream itself. Abuse the prepare_buf_func so we parse a frame
3937 * and get the needed data */
3938 qtpad->prepare_buf_func = gst_qt_mux_prepare_parse_ac3_frame;
3939 } else if (strcmp (mimetype, "audio/x-opus") == 0) {
3940 /* Based on the specification defined in:
3941 * https://www.opus-codec.org/docs/opus_in_isobmff.html */
3942 guint8 channels, mapping_family, stream_count, coupled_count;
3946 guint8 channel_mapping[256];
3947 const GValue *streamheader;
3948 const GValue *first_element;
3951 entry.fourcc = FOURCC_opus;
3952 entry.sample_size = 16;
3954 streamheader = gst_structure_get_value (structure, "streamheader");
3955 if (streamheader && GST_VALUE_HOLDS_ARRAY (streamheader) &&
3956 gst_value_array_get_size (streamheader) != 0) {
3957 first_element = gst_value_array_get_value (streamheader, 0);
3958 header = gst_value_get_buffer (first_element);
3959 if (!gst_codec_utils_opus_parse_header (header, &rate, &channels,
3960 &mapping_family, &stream_count, &coupled_count, channel_mapping,
3961 &pre_skip, &output_gain)) {
3962 GST_ERROR_OBJECT (qtmux, "Incomplete OpusHead");
3966 GST_WARNING_OBJECT (qtmux,
3967 "no streamheader field in caps %" GST_PTR_FORMAT, caps);
3969 if (!gst_codec_utils_opus_parse_caps (caps, &rate, &channels,
3970 &mapping_family, &stream_count, &coupled_count,
3972 GST_ERROR_OBJECT (qtmux, "Incomplete Opus caps");
3979 entry.channels = channels;
3980 ext_atom = build_opus_extension (rate, channels, mapping_family,
3981 stream_count, coupled_count, channel_mapping, pre_skip, output_gain);
3987 /* ok, set the pad info accordingly */
3988 qtpad->fourcc = entry.fourcc;
3989 qtpad->sample_size = constant_size;
3991 (SampleTableEntry *) atom_trak_set_audio_type (qtpad->trak,
3992 qtmux->context, &entry,
3993 qtmux->trak_timescale ? qtmux->trak_timescale : entry.sample_rate,
3994 ext_atom, constant_size);
3996 gst_object_unref (qtmux);
4002 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4003 GST_PAD_NAME (pad), caps);
4004 gst_object_unref (qtmux);
4007 refuse_renegotiation:
4009 GST_WARNING_OBJECT (qtmux,
4010 "pad %s refused renegotiation to %" GST_PTR_FORMAT,
4011 GST_PAD_NAME (pad), caps);
4012 gst_object_unref (qtmux);
4017 /* return number of centiframes per second */
4019 adjust_rate (gint n, gint d)
4024 if (d != 1 && d != 1001) {
4025 /* otherwise there are probably rounding errors and we should rather guess
4026 * if it's close enough to a well known framerate */
4027 gst_video_guess_framerate (gst_util_uint64_scale (d, GST_SECOND, n), &n,
4031 return gst_util_uint64_scale (n, 100, d);
4035 gst_qt_mux_video_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
4037 GstPad *pad = qtpad->collect.pad;
4038 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
4039 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
4040 GstStructure *structure;
4041 const gchar *mimetype;
4042 gint width, height, depth = -1;
4043 gint framerate_num, framerate_den;
4045 const GValue *value = NULL;
4046 const GstBuffer *codec_data = NULL;
4047 VisualSampleEntry entry = { 0, };
4048 GstQTMuxFormat format;
4049 AtomInfo *ext_atom = NULL;
4050 GList *ext_atom_list = NULL;
4051 gboolean sync = FALSE;
4052 int par_num, par_den;
4054 qtpad->prepare_buf_func = NULL;
4056 /* does not go well to renegotiate stream mid-way, unless
4057 * the old caps are a subset of the new one (this means upstream
4058 * added more info to the caps, as both should be 'fixed' caps) */
4059 if (qtpad->fourcc) {
4060 GstCaps *current_caps;
4062 current_caps = gst_pad_get_current_caps (pad);
4063 g_assert (caps != NULL);
4065 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
4066 gst_caps_unref (current_caps);
4067 goto refuse_renegotiation;
4069 GST_DEBUG_OBJECT (qtmux,
4070 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
4071 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
4072 gst_caps_unref (current_caps);
4075 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
4076 GST_DEBUG_PAD_NAME (pad), caps);
4078 format = qtmux_klass->format;
4079 structure = gst_caps_get_structure (caps, 0);
4080 mimetype = gst_structure_get_name (structure);
4082 /* required parts */
4083 if (!gst_structure_get_int (structure, "width", &width) ||
4084 !gst_structure_get_int (structure, "height", &height))
4089 /* works as a default timebase */
4090 framerate_num = 10000;
4092 gst_structure_get_fraction (structure, "framerate", &framerate_num,
4094 gst_structure_get_int (structure, "depth", &depth);
4095 value = gst_structure_get_value (structure, "codec_data");
4097 codec_data = gst_value_get_buffer (value);
4101 gst_structure_get_fraction (structure, "pixel-aspect-ratio", &par_num,
4104 qtpad->is_out_of_order = FALSE;
4106 /* bring frame numerator into a range that ensures both reasonable resolution
4107 * as well as a fair duration */
4108 rate = qtmux->trak_timescale ?
4109 qtmux->trak_timescale : adjust_rate (framerate_num, framerate_den);
4110 GST_DEBUG_OBJECT (qtmux, "Rate of video track selected: %" G_GUINT32_FORMAT,
4113 /* set common properties */
4114 entry.width = width;
4115 entry.height = height;
4116 entry.par_n = par_num;
4117 entry.par_d = par_den;
4118 /* should be OK according to qt and iso spec, override if really needed */
4119 entry.color_table_id = -1;
4120 entry.frame_count = 1;
4123 /* sync entries by default */
4126 /* now map onto a fourcc, and some extra properties */
4127 if (strcmp (mimetype, "video/x-raw") == 0) {
4128 const gchar *format;
4130 const GstVideoFormatInfo *vinfo;
4132 format = gst_structure_get_string (structure, "format");
4133 fmt = gst_video_format_from_string (format);
4134 vinfo = gst_video_format_get_info (fmt);
4137 case GST_VIDEO_FORMAT_UYVY:
4140 entry.fourcc = FOURCC_2vuy;
4141 entry.depth = depth;
4144 case GST_VIDEO_FORMAT_v210:
4147 entry.fourcc = FOURCC_v210;
4148 entry.depth = depth;
4152 if (GST_VIDEO_FORMAT_INFO_FLAGS (vinfo) & GST_VIDEO_FORMAT_FLAG_RGB) {
4153 entry.fourcc = FOURCC_raw_;
4154 entry.depth = GST_VIDEO_FORMAT_INFO_PSTRIDE (vinfo, 0) * 8;
4159 } else if (strcmp (mimetype, "video/x-h263") == 0) {
4161 if (format == GST_QT_MUX_FORMAT_QT)
4162 entry.fourcc = FOURCC_h263;
4164 entry.fourcc = FOURCC_s263;
4165 ext_atom = build_h263_extension ();
4166 if (ext_atom != NULL)
4167 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4168 } else if (strcmp (mimetype, "video/x-divx") == 0 ||
4169 strcmp (mimetype, "video/mpeg") == 0) {
4172 if (strcmp (mimetype, "video/x-divx") == 0) {
4173 gst_structure_get_int (structure, "divxversion", &version);
4174 version = version == 5 ? 1 : 0;
4176 gst_structure_get_int (structure, "mpegversion", &version);
4177 version = version == 4 ? 1 : 0;
4180 entry.fourcc = FOURCC_mp4v;
4182 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P2,
4183 ESDS_STREAM_TYPE_VISUAL, codec_data, qtpad->avg_bitrate,
4184 qtpad->max_bitrate);
4185 if (ext_atom != NULL)
4186 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4188 GST_WARNING_OBJECT (qtmux, "no codec_data for MPEG4 video; "
4189 "output might not play in Apple QuickTime (try global-headers?)");
4191 } else if (strcmp (mimetype, "video/x-h264") == 0) {
4192 /* check if we accept these caps */
4193 if (gst_structure_has_field (structure, "stream-format")) {
4194 const gchar *format;
4195 const gchar *alignment;
4197 format = gst_structure_get_string (structure, "stream-format");
4198 alignment = gst_structure_get_string (structure, "alignment");
4200 if (strcmp (format, "avc") != 0 || alignment == NULL ||
4201 strcmp (alignment, "au") != 0) {
4202 GST_WARNING_OBJECT (qtmux, "Rejecting h264 caps, qtmux only accepts "
4203 "avc format with AU aligned samples");
4207 GST_WARNING_OBJECT (qtmux, "no stream-format field in h264 caps");
4212 GST_WARNING_OBJECT (qtmux, "no codec_data in h264 caps");
4216 entry.fourcc = FOURCC_avc1;
4217 if (qtpad->avg_bitrate == 0) {
4218 gint avg_bitrate = 0;
4219 gst_structure_get_int (structure, "bitrate", &avg_bitrate);
4220 qtpad->avg_bitrate = avg_bitrate;
4222 ext_atom = build_btrt_extension (0, qtpad->avg_bitrate, qtpad->max_bitrate);
4223 if (ext_atom != NULL)
4224 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4225 ext_atom = build_codec_data_extension (FOURCC_avcC, codec_data);
4226 if (ext_atom != NULL)
4227 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4228 } else if (strcmp (mimetype, "video/x-svq") == 0) {
4230 const GstBuffer *seqh = NULL;
4231 const GValue *seqh_value;
4234 gst_structure_get_int (structure, "svqversion", &version);
4236 entry.fourcc = FOURCC_SVQ3;
4240 seqh_value = gst_structure_get_value (structure, "seqh");
4242 seqh = gst_value_get_buffer (seqh_value);
4243 ext_atom = build_SMI_atom (seqh);
4245 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4248 /* we need to add the gamma anyway because quicktime might crash
4249 * when it doesn't find it */
4250 if (!gst_structure_get_double (structure, "applied-gamma", &gamma)) {
4251 /* it seems that using 0 here makes it ignored */
4254 ext_atom = build_gama_atom (gamma);
4256 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4258 GST_WARNING_OBJECT (qtmux, "SVQ version %d not supported. Please file "
4259 "a bug at http://bugzilla.gnome.org", version);
4261 } else if (strcmp (mimetype, "video/x-dv") == 0) {
4263 gboolean pal = TRUE;
4266 if (framerate_num != 25 || framerate_den != 1)
4268 gst_structure_get_int (structure, "dvversion", &version);
4269 /* fall back to typical one */
4275 entry.fourcc = FOURCC_dvcp;
4277 entry.fourcc = FOURCC_dvc_;
4281 entry.fourcc = FOURCC_dv5p;
4283 entry.fourcc = FOURCC_dv5n;
4286 GST_WARNING_OBJECT (qtmux, "unrecognized dv version");
4289 } else if (strcmp (mimetype, "image/jpeg") == 0) {
4290 entry.fourcc = FOURCC_jpeg;
4292 } else if (strcmp (mimetype, "image/x-j2c") == 0 ||
4293 strcmp (mimetype, "image/x-jpc") == 0) {
4294 const gchar *colorspace;
4295 const GValue *cmap_array;
4296 const GValue *cdef_array;
4299 if (strcmp (mimetype, "image/x-jpc") == 0) {
4300 qtpad->prepare_buf_func = gst_qt_mux_prepare_jpc_buffer;
4303 gst_structure_get_int (structure, "num-components", &ncomp);
4304 cmap_array = gst_structure_get_value (structure, "component-map");
4305 cdef_array = gst_structure_get_value (structure, "channel-definitions");
4308 entry.fourcc = FOURCC_mjp2;
4311 colorspace = gst_structure_get_string (structure, "colorspace");
4314 build_jp2h_extension (width, height, colorspace, ncomp, cmap_array,
4315 cdef_array)) != NULL) {
4316 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4318 ext_atom = build_jp2x_extension (codec_data);
4320 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4322 GST_DEBUG_OBJECT (qtmux, "missing or invalid fourcc in jp2 caps");
4325 } else if (strcmp (mimetype, "video/x-vp8") == 0) {
4326 entry.fourcc = FOURCC_VP80;
4328 } else if (strcmp (mimetype, "video/x-dirac") == 0) {
4329 entry.fourcc = FOURCC_drac;
4330 } else if (strcmp (mimetype, "video/x-qt-part") == 0) {
4333 gst_structure_get_uint (structure, "format", &fourcc);
4334 entry.fourcc = fourcc;
4335 } else if (strcmp (mimetype, "video/x-mp4-part") == 0) {
4338 gst_structure_get_uint (structure, "format", &fourcc);
4339 entry.fourcc = fourcc;
4340 } else if (strcmp (mimetype, "video/x-prores") == 0) {
4341 const gchar *variant;
4343 variant = gst_structure_get_string (structure, "variant");
4344 if (!variant || !g_strcmp0 (variant, "standard"))
4345 entry.fourcc = FOURCC_apcn;
4346 else if (!g_strcmp0 (variant, "lt"))
4347 entry.fourcc = FOURCC_apcs;
4348 else if (!g_strcmp0 (variant, "hq"))
4349 entry.fourcc = FOURCC_apch;
4350 else if (!g_strcmp0 (variant, "proxy"))
4351 entry.fourcc = FOURCC_apco;
4352 else if (!g_strcmp0 (variant, "4444"))
4353 entry.fourcc = FOURCC_ap4h;
4354 else if (!g_strcmp0 (variant, "4444xq"))
4355 entry.fourcc = FOURCC_ap4x;
4357 if (!qtmux->interleave_time_set)
4358 qtmux->interleave_time = 500 * GST_MSECOND;
4359 if (!qtmux->interleave_bytes_set)
4360 qtmux->interleave_bytes = width > 720 ? 4 * 1024 * 1024 : 2 * 1024 * 1024;
4366 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT ||
4367 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) {
4369 GstVideoColorimetry colorimetry;
4371 s = gst_structure_get_string (structure, "colorimetry");
4372 if (s && gst_video_colorimetry_from_string (&colorimetry, s)) {
4374 build_colr_extension (&colorimetry,
4375 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4);
4377 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4381 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT
4382 || strcmp (mimetype, "image/x-j2c") == 0
4383 || strcmp (mimetype, "image/x-jpc") == 0) {
4385 GstVideoInterlaceMode interlace_mode;
4386 GstVideoFieldOrder field_order;
4389 if (strcmp (mimetype, "image/x-j2c") == 0 ||
4390 strcmp (mimetype, "image/x-jpc") == 0) {
4393 gst_structure_get_int (structure, "fields", &fields);
4396 s = gst_structure_get_string (structure, "interlace-mode");
4398 interlace_mode = gst_video_interlace_mode_from_string (s);
4402 1) ? GST_VIDEO_INTERLACE_MODE_PROGRESSIVE :
4403 GST_VIDEO_INTERLACE_MODE_MIXED;
4405 field_order = GST_VIDEO_FIELD_ORDER_UNKNOWN;
4406 if (interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED) {
4407 s = gst_structure_get_string (structure, "field-order");
4409 field_order = gst_video_field_order_from_string (s);
4412 ext_atom = build_fiel_extension (interlace_mode, field_order);
4414 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4417 /* ok, set the pad info accordingly */
4418 qtpad->fourcc = entry.fourcc;
4421 (SampleTableEntry *) atom_trak_set_video_type (qtpad->trak,
4422 qtmux->context, &entry, rate, ext_atom_list);
4423 if (strcmp (mimetype, "video/x-prores") == 0) {
4424 SampleTableEntryMP4V *mp4v = (SampleTableEntryMP4V *) qtpad->trak_ste;
4425 const gchar *compressor = NULL;
4426 mp4v->spatial_quality = 0x3FF;
4427 mp4v->temporal_quality = 0;
4428 mp4v->vendor = FOURCC_appl;
4429 mp4v->horizontal_resolution = 72 << 16;
4430 mp4v->vertical_resolution = 72 << 16;
4431 mp4v->depth = (entry.fourcc == FOURCC_ap4h
4432 || entry.fourcc == FOURCC_ap4x) ? 32 : 24;
4434 /* Set compressor name, required by some software */
4435 switch (entry.fourcc) {
4437 compressor = "Apple ProRes 422";
4440 compressor = "Apple ProRes 422 LT";
4443 compressor = "Apple ProRes 422 HQ";
4446 compressor = "Apple ProRes 422 Proxy";
4449 compressor = "Apple ProRes 4444";
4452 compressor = "Apple ProRes 4444 XQ";
4456 strcpy ((gchar *) mp4v->compressor + 1, compressor);
4457 mp4v->compressor[0] = strlen (compressor);
4460 /* The 'clap' extension is also defined for MP4 but inventing values in
4461 * general seems a bit tricky for this one. We only write it for ProRes
4462 * then, where it is a requirement.
4464 * NTSC and PAL have special values, otherwise just take width and height
4466 if (width == 720 && (height == 480 || height == 486))
4467 ext_atom = build_clap_extension (704, 1, height, 1, 0, 1, 0, 1);
4468 else if (width == 720 && height == 576)
4469 ext_atom = build_clap_extension (768 * 54, 59, 576, 1, 0, 1, 0, 1);
4471 ext_atom = build_clap_extension (width, 1, height, 1, 0, 1, 0, 1);
4474 mp4v->extension_atoms = g_list_append (mp4v->extension_atoms, ext_atom);
4477 gst_object_unref (qtmux);
4483 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4484 GST_PAD_NAME (pad), caps);
4485 gst_object_unref (qtmux);
4488 refuse_renegotiation:
4490 GST_WARNING_OBJECT (qtmux,
4491 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4493 gst_object_unref (qtmux);
4499 gst_qt_mux_subtitle_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
4501 GstPad *pad = qtpad->collect.pad;
4502 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
4503 GstStructure *structure;
4504 SubtitleSampleEntry entry = { 0, };
4506 /* does not go well to renegotiate stream mid-way, unless
4507 * the old caps are a subset of the new one (this means upstream
4508 * added more info to the caps, as both should be 'fixed' caps) */
4509 if (qtpad->fourcc) {
4510 GstCaps *current_caps;
4512 current_caps = gst_pad_get_current_caps (pad);
4513 g_assert (caps != NULL);
4515 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
4516 gst_caps_unref (current_caps);
4517 goto refuse_renegotiation;
4519 GST_DEBUG_OBJECT (qtmux,
4520 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
4521 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
4522 gst_caps_unref (current_caps);
4525 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
4526 GST_DEBUG_PAD_NAME (pad), caps);
4528 /* subtitles default */
4529 subtitle_sample_entry_init (&entry);
4530 qtpad->is_out_of_order = FALSE;
4531 qtpad->sync = FALSE;
4532 qtpad->sparse = TRUE;
4533 qtpad->prepare_buf_func = NULL;
4535 structure = gst_caps_get_structure (caps, 0);
4537 if (gst_structure_has_name (structure, "text/x-raw")) {
4538 const gchar *format = gst_structure_get_string (structure, "format");
4539 if (format && strcmp (format, "utf8") == 0) {
4540 entry.fourcc = FOURCC_tx3g;
4541 qtpad->prepare_buf_func = gst_qt_mux_prepare_tx3g_buffer;
4542 qtpad->create_empty_buffer = gst_qt_mux_create_empty_tx3g_buffer;
4549 qtpad->fourcc = entry.fourcc;
4551 (SampleTableEntry *) atom_trak_set_subtitle_type (qtpad->trak,
4552 qtmux->context, &entry);
4554 gst_object_unref (qtmux);
4560 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4561 GST_PAD_NAME (pad), caps);
4562 gst_object_unref (qtmux);
4565 refuse_renegotiation:
4567 GST_WARNING_OBJECT (qtmux,
4568 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4570 gst_object_unref (qtmux);
4576 gst_qt_mux_sink_event (GstCollectPads * pads, GstCollectData * data,
4577 GstEvent * event, gpointer user_data)
4580 guint32 avg_bitrate = 0, max_bitrate = 0;
4581 GstPad *pad = data->pad;
4582 gboolean ret = TRUE;
4584 qtmux = GST_QT_MUX_CAST (user_data);
4585 switch (GST_EVENT_TYPE (event)) {
4586 case GST_EVENT_CAPS:
4589 GstQTPad *collect_pad;
4591 gst_event_parse_caps (event, &caps);
4593 /* find stream data */
4594 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4595 g_assert (collect_pad);
4596 g_assert (collect_pad->set_caps);
4598 ret = collect_pad->set_caps (collect_pad, caps);
4599 gst_event_unref (event);
4603 case GST_EVENT_TAG:{
4605 GstTagSetter *setter = GST_TAG_SETTER (qtmux);
4606 GstTagMergeMode mode;
4608 GstQTPad *collect_pad;
4610 GST_OBJECT_LOCK (qtmux);
4611 mode = gst_tag_setter_get_tag_merge_mode (setter);
4612 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4614 gst_event_parse_tag (event, &list);
4615 GST_DEBUG_OBJECT (qtmux, "received tag event on pad %s:%s : %"
4616 GST_PTR_FORMAT, GST_DEBUG_PAD_NAME (pad), list);
4618 if (gst_tag_list_get_scope (list) == GST_TAG_SCOPE_GLOBAL) {
4619 gst_tag_setter_merge_tags (setter, list, mode);
4620 qtmux->tags_changed = TRUE;
4622 if (!collect_pad->tags)
4623 collect_pad->tags = gst_tag_list_new_empty ();
4624 gst_tag_list_insert (collect_pad->tags, list, mode);
4625 collect_pad->tags_changed = TRUE;
4627 GST_OBJECT_UNLOCK (qtmux);
4629 if (gst_tag_list_get_uint (list, GST_TAG_BITRATE, &avg_bitrate) |
4630 gst_tag_list_get_uint (list, GST_TAG_MAXIMUM_BITRATE, &max_bitrate)) {
4631 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4634 if (avg_bitrate > 0 && avg_bitrate < G_MAXUINT32)
4635 qtpad->avg_bitrate = avg_bitrate;
4636 if (max_bitrate > 0 && max_bitrate < G_MAXUINT32)
4637 qtpad->max_bitrate = max_bitrate;
4640 if (gst_tag_list_get_string (list, GST_TAG_LANGUAGE_CODE, &code)) {
4641 const char *iso_code = gst_tag_get_language_code_iso_639_2T (code);
4643 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4646 /* https://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html */
4647 qtpad->trak->mdia.mdhd.language_code =
4648 (iso_code[0] - 0x60) * 0x400 + (iso_code[1] - 0x60) * 0x20 +
4649 (iso_code[2] - 0x60);
4655 gst_event_unref (event);
4665 return gst_collect_pads_event_default (pads, data, event, FALSE);
4671 gst_qt_mux_release_pad (GstElement * element, GstPad * pad)
4673 GstQTMux *mux = GST_QT_MUX_CAST (element);
4676 GST_DEBUG_OBJECT (element, "Releasing %s:%s", GST_DEBUG_PAD_NAME (pad));
4678 for (walk = mux->sinkpads; walk; walk = g_slist_next (walk)) {
4679 GstQTPad *qtpad = (GstQTPad *) walk->data;
4680 GST_DEBUG ("Checking %s:%s", GST_DEBUG_PAD_NAME (qtpad->collect.pad));
4681 if (qtpad->collect.pad == pad) {
4682 /* this is it, remove */
4683 mux->sinkpads = g_slist_delete_link (mux->sinkpads, walk);
4684 gst_element_remove_pad (element, pad);
4689 if (mux->current_pad && mux->current_pad->collect.pad == pad) {
4690 mux->current_pad = NULL;
4691 mux->current_chunk_size = 0;
4692 mux->current_chunk_duration = 0;
4695 gst_collect_pads_remove_pad (mux->collect, pad);
4699 gst_qt_mux_request_new_pad (GstElement * element,
4700 GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps)
4702 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
4703 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
4704 GstQTPad *collect_pad;
4706 GstQTPadSetCapsFunc setcaps_func;
4709 gboolean lock = TRUE;
4711 if (templ->direction != GST_PAD_SINK)
4712 goto wrong_direction;
4714 if (qtmux->state > GST_QT_MUX_STATE_STARTED)
4717 if (templ == gst_element_class_get_pad_template (klass, "audio_%u")) {
4718 setcaps_func = gst_qt_mux_audio_sink_set_caps;
4719 if (req_name != NULL && sscanf (req_name, "audio_%u", &pad_id) == 1) {
4720 name = g_strdup (req_name);
4722 name = g_strdup_printf ("audio_%u", qtmux->audio_pads++);
4724 } else if (templ == gst_element_class_get_pad_template (klass, "video_%u")) {
4725 setcaps_func = gst_qt_mux_video_sink_set_caps;
4726 if (req_name != NULL && sscanf (req_name, "video_%u", &pad_id) == 1) {
4727 name = g_strdup (req_name);
4729 name = g_strdup_printf ("video_%u", qtmux->video_pads++);
4731 } else if (templ == gst_element_class_get_pad_template (klass, "subtitle_%u")) {
4732 setcaps_func = gst_qt_mux_subtitle_sink_set_caps;
4733 if (req_name != NULL && sscanf (req_name, "subtitle_%u", &pad_id) == 1) {
4734 name = g_strdup (req_name);
4736 name = g_strdup_printf ("subtitle_%u", qtmux->subtitle_pads++);
4740 goto wrong_template;
4742 GST_DEBUG_OBJECT (qtmux, "Requested pad: %s", name);
4744 /* create pad and add to collections */
4745 newpad = gst_pad_new_from_template (templ, name);
4747 collect_pad = (GstQTPad *)
4748 gst_collect_pads_add_pad (qtmux->collect, newpad, sizeof (GstQTPad),
4749 (GstCollectDataDestroyNotify) (gst_qt_mux_pad_reset), lock);
4751 gst_qt_mux_pad_reset (collect_pad);
4752 collect_pad->trak = atom_trak_new (qtmux->context);
4753 atom_moov_add_trak (qtmux->moov, collect_pad->trak);
4755 qtmux->sinkpads = g_slist_append (qtmux->sinkpads, collect_pad);
4757 /* set up pad functions */
4758 collect_pad->set_caps = setcaps_func;
4760 gst_pad_set_active (newpad, TRUE);
4761 gst_element_add_pad (element, newpad);
4768 GST_WARNING_OBJECT (qtmux, "Request pad that is not a SINK pad.");
4773 GST_WARNING_OBJECT (qtmux, "Not providing request pad after stream start.");
4778 GST_WARNING_OBJECT (qtmux, "This is not our template!");
4784 gst_qt_mux_get_property (GObject * object,
4785 guint prop_id, GValue * value, GParamSpec * pspec)
4787 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4789 GST_OBJECT_LOCK (qtmux);
4791 case PROP_MOVIE_TIMESCALE:
4792 g_value_set_uint (value, qtmux->timescale);
4794 case PROP_TRAK_TIMESCALE:
4795 g_value_set_uint (value, qtmux->trak_timescale);
4798 g_value_set_boolean (value, qtmux->guess_pts);
4800 #ifndef GST_REMOVE_DEPRECATED
4801 case PROP_DTS_METHOD:
4802 g_value_set_enum (value, qtmux->dts_method);
4805 case PROP_FAST_START:
4806 g_value_set_boolean (value, qtmux->fast_start);
4808 case PROP_FAST_START_TEMP_FILE:
4809 g_value_set_string (value, qtmux->fast_start_file_path);
4811 case PROP_MOOV_RECOV_FILE:
4812 g_value_set_string (value, qtmux->moov_recov_file_path);
4814 case PROP_FRAGMENT_DURATION:
4815 g_value_set_uint (value, qtmux->fragment_duration);
4817 case PROP_STREAMABLE:
4818 g_value_set_boolean (value, qtmux->streamable);
4820 case PROP_RESERVED_MAX_DURATION:
4821 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4823 case PROP_RESERVED_DURATION_REMAINING:
4824 if (qtmux->reserved_duration_remaining == GST_CLOCK_TIME_NONE)
4825 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4827 GstClockTime remaining = qtmux->reserved_duration_remaining;
4829 /* Report the remaining space as the calculated remaining, minus
4830 * however much we've muxed since the last update */
4831 if (remaining > qtmux->muxed_since_last_update)
4832 remaining -= qtmux->muxed_since_last_update;
4835 GST_LOG_OBJECT (qtmux, "reserved duration remaining - reporting %"
4836 G_GUINT64_FORMAT "(%" G_GUINT64_FORMAT " - %" G_GUINT64_FORMAT,
4837 remaining, qtmux->reserved_duration_remaining,
4838 qtmux->muxed_since_last_update);
4839 g_value_set_uint64 (value, remaining);
4842 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4843 g_value_set_uint64 (value, qtmux->reserved_moov_update_period);
4845 case PROP_RESERVED_BYTES_PER_SEC:
4846 g_value_set_uint (value, qtmux->reserved_bytes_per_sec_per_trak);
4848 case PROP_INTERLEAVE_BYTES:
4849 g_value_set_uint64 (value, qtmux->interleave_bytes);
4851 case PROP_INTERLEAVE_TIME:
4852 g_value_set_uint64 (value, qtmux->interleave_time);
4855 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4858 GST_OBJECT_UNLOCK (qtmux);
4862 gst_qt_mux_generate_fast_start_file_path (GstQTMux * qtmux)
4866 g_free (qtmux->fast_start_file_path);
4867 qtmux->fast_start_file_path = NULL;
4869 tmp = g_strdup_printf ("%s%d", "qtmux", g_random_int ());
4870 qtmux->fast_start_file_path = g_build_filename (g_get_tmp_dir (), tmp, NULL);
4875 gst_qt_mux_set_property (GObject * object,
4876 guint prop_id, const GValue * value, GParamSpec * pspec)
4878 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4880 GST_OBJECT_LOCK (qtmux);
4882 case PROP_MOVIE_TIMESCALE:
4883 qtmux->timescale = g_value_get_uint (value);
4885 case PROP_TRAK_TIMESCALE:
4886 qtmux->trak_timescale = g_value_get_uint (value);
4889 qtmux->guess_pts = g_value_get_boolean (value);
4891 #ifndef GST_REMOVE_DEPRECATED
4892 case PROP_DTS_METHOD:
4893 qtmux->dts_method = g_value_get_enum (value);
4896 case PROP_FAST_START:
4897 qtmux->fast_start = g_value_get_boolean (value);
4899 case PROP_FAST_START_TEMP_FILE:
4900 g_free (qtmux->fast_start_file_path);
4901 qtmux->fast_start_file_path = g_value_dup_string (value);
4902 /* NULL means to generate a random one */
4903 if (!qtmux->fast_start_file_path) {
4904 gst_qt_mux_generate_fast_start_file_path (qtmux);
4907 case PROP_MOOV_RECOV_FILE:
4908 g_free (qtmux->moov_recov_file_path);
4909 qtmux->moov_recov_file_path = g_value_dup_string (value);
4911 case PROP_FRAGMENT_DURATION:
4912 qtmux->fragment_duration = g_value_get_uint (value);
4914 case PROP_STREAMABLE:{
4915 GstQTMuxClass *qtmux_klass =
4916 (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
4917 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML) {
4918 qtmux->streamable = g_value_get_boolean (value);
4922 case PROP_RESERVED_MAX_DURATION:
4923 qtmux->reserved_max_duration = g_value_get_uint64 (value);
4925 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4926 qtmux->reserved_moov_update_period = g_value_get_uint64 (value);
4928 case PROP_RESERVED_BYTES_PER_SEC:
4929 qtmux->reserved_bytes_per_sec_per_trak = g_value_get_uint (value);
4931 case PROP_INTERLEAVE_BYTES:
4932 qtmux->interleave_bytes = g_value_get_uint64 (value);
4933 qtmux->interleave_bytes_set = TRUE;
4935 case PROP_INTERLEAVE_TIME:
4936 qtmux->interleave_time = g_value_get_uint64 (value);
4937 qtmux->interleave_time_set = TRUE;
4940 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4943 GST_OBJECT_UNLOCK (qtmux);
4946 static GstStateChangeReturn
4947 gst_qt_mux_change_state (GstElement * element, GstStateChange transition)
4949 GstStateChangeReturn ret;
4950 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
4952 switch (transition) {
4953 case GST_STATE_CHANGE_NULL_TO_READY:
4955 case GST_STATE_CHANGE_READY_TO_PAUSED:
4956 gst_collect_pads_start (qtmux->collect);
4957 qtmux->state = GST_QT_MUX_STATE_STARTED;
4958 qtmux->first_tc = NULL;
4961 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
4963 case GST_STATE_CHANGE_PAUSED_TO_READY:
4964 gst_collect_pads_stop (qtmux->collect);
4970 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4972 switch (transition) {
4973 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
4975 case GST_STATE_CHANGE_PAUSED_TO_READY:
4976 gst_qt_mux_reset (qtmux, TRUE);
4978 case GST_STATE_CHANGE_READY_TO_NULL:
4988 gst_qt_mux_register (GstPlugin * plugin)
4990 GTypeInfo typeinfo = {
4991 sizeof (GstQTMuxClass),
4992 (GBaseInitFunc) gst_qt_mux_base_init,
4994 (GClassInitFunc) gst_qt_mux_class_init,
4999 (GInstanceInitFunc) gst_qt_mux_init,
5001 static const GInterfaceInfo tag_setter_info = {
5004 static const GInterfaceInfo tag_xmp_writer_info = {
5007 static const GInterfaceInfo preset_info = {
5011 GstQTMuxFormat format;
5012 GstQTMuxClassParams *params;
5015 GST_DEBUG_CATEGORY_INIT (gst_qt_mux_debug, "qtmux", 0, "QT Muxer");
5017 GST_LOG ("Registering muxers");
5020 GstQTMuxFormatProp *prop;
5021 GstCaps *subtitle_caps;
5023 prop = &gst_qt_mux_format_list[i];
5024 format = prop->format;
5025 if (format == GST_QT_MUX_FORMAT_NONE)
5028 /* create a cache for these properties */
5029 params = g_new0 (GstQTMuxClassParams, 1);
5030 params->prop = prop;
5031 params->src_caps = gst_static_caps_get (&prop->src_caps);
5032 params->video_sink_caps = gst_static_caps_get (&prop->video_sink_caps);
5033 params->audio_sink_caps = gst_static_caps_get (&prop->audio_sink_caps);
5034 subtitle_caps = gst_static_caps_get (&prop->subtitle_sink_caps);
5035 if (!gst_caps_is_equal (subtitle_caps, GST_CAPS_NONE)) {
5036 params->subtitle_sink_caps = subtitle_caps;
5038 gst_caps_unref (subtitle_caps);
5041 /* create the type now */
5042 type = g_type_register_static (GST_TYPE_ELEMENT, prop->type_name, &typeinfo,
5044 g_type_set_qdata (type, GST_QT_MUX_PARAMS_QDATA, (gpointer) params);
5045 g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, &tag_setter_info);
5046 g_type_add_interface_static (type, GST_TYPE_TAG_XMP_WRITER,
5047 &tag_xmp_writer_info);
5048 g_type_add_interface_static (type, GST_TYPE_PRESET, &preset_info);
5050 if (!gst_element_register (plugin, prop->name, prop->rank, type))
5056 GST_LOG ("Finished registering muxers");
5058 /* FIXME: ideally classification tag should be added and
5059 registered in gstreamer core gsttaglist
5062 GST_LOG ("Registering tags");
5064 gst_tag_register (GST_TAG_3GP_CLASSIFICATION, GST_TAG_FLAG_META,
5065 G_TYPE_STRING, GST_TAG_3GP_CLASSIFICATION, "content classification",
5066 gst_tag_merge_use_first);
5068 GST_LOG ("Finished registering tags");