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->fragment_sequence = 0;
563 atom_ftyp_free (qtmux->ftyp);
567 atom_moov_free (qtmux->moov);
571 atom_mfra_free (qtmux->mfra);
574 if (qtmux->fast_start_file) {
575 fclose (qtmux->fast_start_file);
576 g_remove (qtmux->fast_start_file_path);
577 qtmux->fast_start_file = NULL;
579 if (qtmux->moov_recov_file) {
580 fclose (qtmux->moov_recov_file);
581 qtmux->moov_recov_file = NULL;
583 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
584 AtomInfo *ainfo = (AtomInfo *) walk->data;
585 ainfo->free_func (ainfo->atom);
588 g_slist_free (qtmux->extra_atoms);
589 qtmux->extra_atoms = NULL;
591 GST_OBJECT_LOCK (qtmux);
592 gst_tag_setter_reset_tags (GST_TAG_SETTER (qtmux));
593 GST_OBJECT_UNLOCK (qtmux);
596 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
597 GstQTPad *qtpad = (GstQTPad *) walk->data;
598 gst_qt_mux_pad_reset (qtpad);
600 /* hm, moov_free above yanked the traks away from us,
601 * so do not free, but do clear */
606 qtmux->moov = atom_moov_new (qtmux->context);
607 /* ensure all is as nice and fresh as request_new_pad would provide it */
608 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
609 GstQTPad *qtpad = (GstQTPad *) walk->data;
611 qtpad->trak = atom_trak_new (qtmux->context);
612 atom_moov_add_trak (qtmux->moov, qtpad->trak);
616 qtmux->current_pad = NULL;
617 qtmux->current_chunk_size = 0;
618 qtmux->current_chunk_duration = 0;
619 qtmux->current_chunk_offset = -1;
621 qtmux->reserved_moov_size = 0;
622 qtmux->last_moov_update = GST_CLOCK_TIME_NONE;
623 qtmux->muxed_since_last_update = 0;
624 qtmux->reserved_duration_remaining = GST_CLOCK_TIME_NONE;
625 qtmux->first_pts = GST_CLOCK_TIME_NONE;
630 gst_qt_mux_init (GstQTMux * qtmux, GstQTMuxClass * qtmux_klass)
632 GstElementClass *klass = GST_ELEMENT_CLASS (qtmux_klass);
633 GstPadTemplate *templ;
635 templ = gst_element_class_get_pad_template (klass, "src");
636 qtmux->srcpad = gst_pad_new_from_template (templ, "src");
637 gst_pad_use_fixed_caps (qtmux->srcpad);
638 gst_element_add_pad (GST_ELEMENT (qtmux), qtmux->srcpad);
640 qtmux->sinkpads = NULL;
641 qtmux->collect = gst_collect_pads_new ();
642 gst_collect_pads_set_event_function (qtmux->collect,
643 GST_DEBUG_FUNCPTR (gst_qt_mux_sink_event), qtmux);
644 gst_collect_pads_set_clip_function (qtmux->collect,
645 GST_DEBUG_FUNCPTR (gst_collect_pads_clip_running_time), qtmux);
646 gst_collect_pads_set_function (qtmux->collect,
647 GST_DEBUG_FUNCPTR (gst_qt_mux_collected), qtmux);
649 /* properties set to default upon construction */
651 qtmux->reserved_max_duration = DEFAULT_RESERVED_MAX_DURATION;
652 qtmux->reserved_moov_update_period = DEFAULT_RESERVED_MOOV_UPDATE_PERIOD;
653 qtmux->reserved_bytes_per_sec_per_trak =
654 DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK;
655 qtmux->interleave_bytes = DEFAULT_INTERLEAVE_BYTES;
656 qtmux->interleave_time = DEFAULT_INTERLEAVE_TIME;
658 /* always need this */
660 atoms_context_new (gst_qt_mux_map_format_to_flavor (qtmux_klass->format));
662 /* internals to initial state */
663 gst_qt_mux_reset (qtmux, TRUE);
668 gst_qt_mux_finalize (GObject * object)
670 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
672 gst_qt_mux_reset (qtmux, FALSE);
674 g_free (qtmux->fast_start_file_path);
675 g_free (qtmux->moov_recov_file_path);
677 atoms_context_free (qtmux->context);
678 gst_object_unref (qtmux->collect);
680 g_slist_free (qtmux->sinkpads);
682 G_OBJECT_CLASS (parent_class)->finalize (object);
686 gst_qt_mux_prepare_jpc_buffer (GstQTPad * qtpad, GstBuffer * buf,
693 GST_LOG_OBJECT (qtmux, "Preparing jpc buffer");
698 size = gst_buffer_get_size (buf);
699 newbuf = gst_buffer_new_and_alloc (size + 8);
700 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_ALL, 8, size);
702 gst_buffer_map (newbuf, &map, GST_MAP_WRITE);
703 GST_WRITE_UINT32_BE (map.data, map.size);
704 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_jp2c);
706 gst_buffer_unmap (buf, &map);
707 gst_buffer_unref (buf);
713 gst_qt_mux_prepare_tx3g_buffer (GstQTPad * qtpad, GstBuffer * buf,
720 const guint8 *dataend;
722 GST_LOG_OBJECT (qtmux, "Preparing tx3g buffer %" GST_PTR_FORMAT, buf);
727 gst_buffer_map (buf, &frommap, GST_MAP_READ);
729 dataend = memchr (frommap.data, 0, frommap.size);
730 size = dataend ? dataend - frommap.data : frommap.size;
731 newbuf = gst_buffer_new_and_alloc (size + 2);
733 gst_buffer_map (newbuf, &tomap, GST_MAP_WRITE);
735 GST_WRITE_UINT16_BE (tomap.data, size);
736 memcpy (tomap.data + 2, frommap.data, size);
738 gst_buffer_unmap (newbuf, &tomap);
739 gst_buffer_unmap (buf, &frommap);
741 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_METADATA, 0, size);
743 /* gst_buffer_copy_into is trying to be too clever and
744 * won't copy duration when size is different */
745 GST_BUFFER_DURATION (newbuf) = GST_BUFFER_DURATION (buf);
747 gst_buffer_unref (buf);
753 gst_qt_mux_pad_add_ac3_extension (GstQTMux * qtmux, GstQTPad * qtpad,
754 guint8 fscod, guint8 frmsizcod, guint8 bsid, guint8 bsmod, guint8 acmod,
759 g_return_if_fail (qtpad->trak_ste);
761 ext = build_ac3_extension (fscod, bsid, bsmod, acmod, lfe_on, frmsizcod >> 1); /* bitrate_code is inside frmsizcod */
763 sample_table_entry_add_ext_atom (qtpad->trak_ste, ext);
767 gst_qt_mux_prepare_parse_ac3_frame (GstQTPad * qtpad, GstBuffer * buf,
771 GstByteReader reader;
774 if (!gst_buffer_map (buf, &map, GST_MAP_READ)) {
775 GST_WARNING_OBJECT (qtpad->collect.pad, "Failed to map buffer");
779 if (G_UNLIKELY (map.size < 8))
782 gst_byte_reader_init (&reader, map.data, map.size);
783 off = gst_byte_reader_masked_scan_uint32 (&reader, 0xffff0000, 0x0b770000,
788 guint8 fscod, frmsizcod, bsid, bsmod, acmod, lfe_on;
790 GST_DEBUG_OBJECT (qtpad->collect.pad, "Found ac3 sync point at offset: %u",
793 gst_bit_reader_init (&bits, map.data, map.size);
795 /* off + sync + crc */
796 gst_bit_reader_skip_unchecked (&bits, off * 8 + 16 + 16);
798 fscod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 2);
799 frmsizcod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 6);
800 bsid = gst_bit_reader_get_bits_uint8_unchecked (&bits, 5);
801 bsmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
802 acmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
804 if ((acmod & 0x1) && (acmod != 0x1)) /* 3 front channels */
805 gst_bit_reader_skip_unchecked (&bits, 2);
806 if ((acmod & 0x4)) /* if a surround channel exists */
807 gst_bit_reader_skip_unchecked (&bits, 2);
808 if (acmod == 0x2) /* if in 2/0 mode */
809 gst_bit_reader_skip_unchecked (&bits, 2);
811 lfe_on = gst_bit_reader_get_bits_uint8_unchecked (&bits, 1);
813 gst_qt_mux_pad_add_ac3_extension (qtmux, qtpad, fscod, frmsizcod, bsid,
814 bsmod, acmod, lfe_on);
816 /* AC-3 spec says that those values should be constant for the
817 * whole stream when muxed in mp4. We trust the input follows it */
818 GST_DEBUG_OBJECT (qtpad->collect.pad, "Data parsed, removing "
819 "prepare buffer function");
820 qtpad->prepare_buf_func = NULL;
824 gst_buffer_unmap (buf, &map);
829 gst_qt_mux_create_empty_tx3g_buffer (GstQTPad * qtpad, gint64 duration)
834 GST_WRITE_UINT16_BE (data, 0);
836 return gst_buffer_new_wrapped (data, 2);
840 gst_qt_mux_add_mp4_tag (GstQTMux * qtmux, const GstTagList * list,
841 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
843 switch (gst_tag_get_type (tag)) {
849 if (!gst_tag_list_get_string (list, tag, &str) || !str)
851 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
852 GST_FOURCC_ARGS (fourcc), str);
853 atom_udta_add_str_tag (udta, fourcc, str);
862 if (!gst_tag_list_get_double (list, tag, &value))
864 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
865 GST_FOURCC_ARGS (fourcc), (gint) value);
866 atom_udta_add_uint_tag (udta, fourcc, 21, (gint) value);
873 /* paired unsigned integers */
877 got_tag = gst_tag_list_get_uint (list, tag, &value);
878 got_tag = gst_tag_list_get_uint (list, tag2, &count) || got_tag;
881 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u/%u",
882 GST_FOURCC_ARGS (fourcc), value, count);
883 atom_udta_add_uint_tag (udta, fourcc, 0,
884 value << 16 | (count & 0xFFFF));
886 /* unpaired unsigned integers */
887 if (!gst_tag_list_get_uint (list, tag, &value))
889 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
890 GST_FOURCC_ARGS (fourcc), value);
891 atom_udta_add_uint_tag (udta, fourcc, 1, value);
896 g_assert_not_reached ();
902 gst_qt_mux_add_mp4_date (GstQTMux * qtmux, const GstTagList * list,
903 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
911 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
913 if (!gst_tag_list_get_date (list, tag, &date) || !date)
916 year = g_date_get_year (date);
917 month = g_date_get_month (date);
918 day = g_date_get_day (date);
922 if (year == G_DATE_BAD_YEAR && month == G_DATE_BAD_MONTH &&
923 day == G_DATE_BAD_DAY) {
924 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
928 str = g_strdup_printf ("%u-%u-%u", year, month, day);
929 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
930 GST_FOURCC_ARGS (fourcc), str);
931 atom_udta_add_str_tag (udta, fourcc, str);
936 gst_qt_mux_add_mp4_cover (GstQTMux * qtmux, const GstTagList * list,
937 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
939 GValue value = { 0, };
943 GstStructure *structure;
947 g_return_if_fail (gst_tag_get_type (tag) == GST_TYPE_SAMPLE);
949 if (!gst_tag_list_copy_value (&value, list, tag))
952 sample = gst_value_get_sample (&value);
957 buf = gst_sample_get_buffer (sample);
961 caps = gst_sample_get_caps (sample);
963 GST_WARNING_OBJECT (qtmux, "preview image without caps");
967 GST_DEBUG_OBJECT (qtmux, "preview image caps %" GST_PTR_FORMAT, caps);
969 structure = gst_caps_get_structure (caps, 0);
970 if (gst_structure_has_name (structure, "image/jpeg"))
972 else if (gst_structure_has_name (structure, "image/png"))
976 GST_WARNING_OBJECT (qtmux, "preview image format not supported");
980 gst_buffer_map (buf, &map, GST_MAP_READ);
981 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT
982 " -> image size %" G_GSIZE_FORMAT "", GST_FOURCC_ARGS (fourcc), map.size);
983 atom_udta_add_tag (udta, fourcc, flags, map.data, map.size);
984 gst_buffer_unmap (buf, &map);
986 g_value_unset (&value);
990 gst_qt_mux_add_3gp_str (GstQTMux * qtmux, const GstTagList * list,
991 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
996 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_STRING);
997 g_return_if_fail (!tag2 || gst_tag_get_type (tag2) == G_TYPE_UINT);
999 if (!gst_tag_list_get_string (list, tag, &str) || !str)
1003 if (!gst_tag_list_get_uint (list, tag2, &number))
1007 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1008 GST_FOURCC_ARGS (fourcc), str);
1009 atom_udta_add_3gp_str_tag (udta, fourcc, str);
1011 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s/%d",
1012 GST_FOURCC_ARGS (fourcc), str, number);
1013 atom_udta_add_3gp_str_int_tag (udta, fourcc, str, number);
1020 gst_qt_mux_add_3gp_date (GstQTMux * qtmux, const GstTagList * list,
1021 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1026 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
1028 if (!gst_tag_list_get_date (list, tag, &date) || !date)
1031 year = g_date_get_year (date);
1034 if (year == G_DATE_BAD_YEAR) {
1035 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
1039 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %d",
1040 GST_FOURCC_ARGS (fourcc), year);
1041 atom_udta_add_3gp_uint_tag (udta, fourcc, year);
1045 gst_qt_mux_add_3gp_location (GstQTMux * qtmux, const GstTagList * list,
1046 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1048 gdouble latitude = -360, longitude = -360, altitude = 0;
1049 gchar *location = NULL;
1050 guint8 *data, *ddata;
1051 gint size = 0, len = 0;
1052 gboolean ret = FALSE;
1054 g_return_if_fail (strcmp (tag, GST_TAG_GEO_LOCATION_NAME) == 0);
1056 ret = gst_tag_list_get_string (list, tag, &location);
1057 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LONGITUDE,
1059 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LATITUDE,
1061 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_ELEVATION,
1068 len = strlen (location);
1069 size += len + 1 + 2;
1071 /* role + (long, lat, alt) + body + notes */
1072 size += 1 + 3 * 4 + 1 + 1;
1074 data = ddata = g_malloc (size);
1077 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1080 memcpy (data + 2, location, len);
1081 GST_WRITE_UINT8 (data + 2 + len, 0);
1082 data += len + 1 + 2;
1084 GST_WRITE_UINT8 (data, 0);
1085 /* long, lat, alt */
1086 #define QT_WRITE_SFP32(data, fp) GST_WRITE_UINT32_BE(data, (guint32) ((gint) (fp * 65536.0)))
1087 QT_WRITE_SFP32 (data + 1, longitude);
1088 QT_WRITE_SFP32 (data + 5, latitude);
1089 QT_WRITE_SFP32 (data + 9, altitude);
1090 /* neither astronomical body nor notes */
1091 GST_WRITE_UINT16_BE (data + 13, 0);
1093 GST_DEBUG_OBJECT (qtmux, "Adding tag 'loci'");
1094 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1099 gst_qt_mux_add_3gp_keywords (GstQTMux * qtmux, const GstTagList * list,
1100 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1102 gchar *keywords = NULL;
1103 guint8 *data, *ddata;
1107 g_return_if_fail (strcmp (tag, GST_TAG_KEYWORDS) == 0);
1109 if (!gst_tag_list_get_string (list, tag, &keywords) || !keywords)
1112 kwds = g_strsplit (keywords, ",", 0);
1116 for (i = 0; kwds[i]; i++) {
1117 /* size byte + null-terminator */
1118 size += strlen (kwds[i]) + 1 + 1;
1121 /* language tag + count + keywords */
1124 data = ddata = g_malloc (size);
1127 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1129 GST_WRITE_UINT8 (data + 2, i);
1132 for (i = 0; kwds[i]; ++i) {
1133 gint len = strlen (kwds[i]);
1135 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1136 GST_FOURCC_ARGS (fourcc), kwds[i]);
1138 GST_WRITE_UINT8 (data, len + 1);
1139 memcpy (data + 1, kwds[i], len + 1);
1145 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1150 gst_qt_mux_parse_classification_string (GstQTMux * qtmux, const gchar * input,
1151 guint32 * p_fourcc, guint16 * p_table, gchar ** p_content)
1159 size = strlen (input);
1161 if (size < 4 + 3 + 1 + 1 + 1) {
1162 /* at least the minimum xxxx://y/z */
1163 GST_WARNING_OBJECT (qtmux, "Classification tag input (%s) too short, "
1168 /* read the fourcc */
1169 memcpy (&fourcc, data, 4);
1173 if (strncmp (data, "://", 3) != 0) {
1179 /* read the table number */
1180 if (sscanf (data, "%d", &table) != 1) {
1184 GST_WARNING_OBJECT (qtmux, "Invalid table number in classification tag (%d)"
1185 ", table numbers should be positive, ignoring tag", table);
1189 /* find the next / */
1190 while (size > 0 && data[0] != '/') {
1197 g_assert (data[0] == '/');
1206 /* read up the rest of the string */
1207 *p_content = g_strdup (data);
1208 *p_table = (guint16) table;
1214 GST_WARNING_OBJECT (qtmux, "Ignoring classification tag as "
1215 "input (%s) didn't match the expected entitycode://table/content",
1222 gst_qt_mux_add_3gp_classification (GstQTMux * qtmux, const GstTagList * list,
1223 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1225 gchar *clsf_data = NULL;
1229 gchar *content = NULL;
1232 g_return_if_fail (strcmp (tag, GST_TAG_3GP_CLASSIFICATION) == 0);
1234 if (!gst_tag_list_get_string (list, tag, &clsf_data) || !clsf_data)
1237 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1238 GST_FOURCC_ARGS (fourcc), clsf_data);
1240 /* parse the string, format is:
1241 * entityfourcc://table/content
1243 gst_qt_mux_parse_classification_string (qtmux, clsf_data, &entity, &table,
1247 size = strlen (content) + 1;
1249 /* now we have everything, build the atom
1250 * atom description is at 3GPP TS 26.244 V8.2.0 (2009-09) */
1251 data = g_malloc (4 + 2 + 2 + size);
1252 GST_WRITE_UINT32_LE (data, entity);
1253 GST_WRITE_UINT16_BE (data + 4, (guint16) table);
1254 GST_WRITE_UINT16_BE (data + 6, 0);
1255 memcpy (data + 8, content, size);
1258 atom_udta_add_3gp_tag (udta, fourcc, data, 4 + 2 + 2 + size);
1262 typedef void (*GstQTMuxAddUdtaTagFunc) (GstQTMux * mux,
1263 const GstTagList * list, AtomUDTA * udta, const char *tag,
1264 const char *tag2, guint32 fourcc);
1267 * Struct to record mappings from gstreamer tags to fourcc codes
1269 typedef struct _GstTagToFourcc
1272 const gchar *gsttag;
1273 const gchar *gsttag2;
1274 const GstQTMuxAddUdtaTagFunc func;
1277 /* tag list tags to fourcc matching */
1278 static const GstTagToFourcc tag_matches_mp4[] = {
1279 {FOURCC__alb, GST_TAG_ALBUM, NULL, gst_qt_mux_add_mp4_tag},
1280 {FOURCC_soal, GST_TAG_ALBUM_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1281 {FOURCC__ART, GST_TAG_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1282 {FOURCC_soar, GST_TAG_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1283 {FOURCC_aART, GST_TAG_ALBUM_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1284 {FOURCC_soaa, GST_TAG_ALBUM_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1285 {FOURCC__swr, GST_TAG_APPLICATION_NAME, NULL, gst_qt_mux_add_mp4_tag},
1286 {FOURCC__cmt, GST_TAG_COMMENT, NULL, gst_qt_mux_add_mp4_tag},
1287 {FOURCC__wrt, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_mp4_tag},
1288 {FOURCC_soco, GST_TAG_COMPOSER_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1289 {FOURCC_tvsh, GST_TAG_SHOW_NAME, NULL, gst_qt_mux_add_mp4_tag},
1290 {FOURCC_sosn, GST_TAG_SHOW_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1291 {FOURCC_tvsn, GST_TAG_SHOW_SEASON_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1292 {FOURCC_tves, GST_TAG_SHOW_EPISODE_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1293 {FOURCC__gen, GST_TAG_GENRE, NULL, gst_qt_mux_add_mp4_tag},
1294 {FOURCC__nam, GST_TAG_TITLE, NULL, gst_qt_mux_add_mp4_tag},
1295 {FOURCC_sonm, GST_TAG_TITLE_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1296 {FOURCC_perf, GST_TAG_PERFORMER, NULL, gst_qt_mux_add_mp4_tag},
1297 {FOURCC__grp, GST_TAG_GROUPING, NULL, gst_qt_mux_add_mp4_tag},
1298 {FOURCC__des, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_mp4_tag},
1299 {FOURCC__lyr, GST_TAG_LYRICS, NULL, gst_qt_mux_add_mp4_tag},
1300 {FOURCC__too, GST_TAG_ENCODER, NULL, gst_qt_mux_add_mp4_tag},
1301 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_mp4_tag},
1302 {FOURCC_keyw, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_mp4_tag},
1303 {FOURCC__day, GST_TAG_DATE, NULL, gst_qt_mux_add_mp4_date},
1304 {FOURCC_tmpo, GST_TAG_BEATS_PER_MINUTE, NULL, gst_qt_mux_add_mp4_tag},
1305 {FOURCC_trkn, GST_TAG_TRACK_NUMBER, GST_TAG_TRACK_COUNT,
1306 gst_qt_mux_add_mp4_tag},
1307 {FOURCC_disk, GST_TAG_ALBUM_VOLUME_NUMBER, GST_TAG_ALBUM_VOLUME_COUNT,
1308 gst_qt_mux_add_mp4_tag},
1309 {FOURCC_covr, GST_TAG_PREVIEW_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1310 {FOURCC_covr, GST_TAG_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1314 static const GstTagToFourcc tag_matches_3gp[] = {
1315 {FOURCC_titl, GST_TAG_TITLE, NULL, gst_qt_mux_add_3gp_str},
1316 {FOURCC_dscp, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_3gp_str},
1317 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_3gp_str},
1318 {FOURCC_perf, GST_TAG_ARTIST, NULL, gst_qt_mux_add_3gp_str},
1319 {FOURCC_auth, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_3gp_str},
1320 {FOURCC_gnre, GST_TAG_GENRE, NULL, gst_qt_mux_add_3gp_str},
1321 {FOURCC_kywd, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_3gp_keywords},
1322 {FOURCC_yrrc, GST_TAG_DATE, NULL, gst_qt_mux_add_3gp_date},
1323 {FOURCC_albm, GST_TAG_ALBUM, GST_TAG_TRACK_NUMBER, gst_qt_mux_add_3gp_str},
1324 {FOURCC_loci, GST_TAG_GEO_LOCATION_NAME, NULL, gst_qt_mux_add_3gp_location},
1325 {FOURCC_clsf, GST_TAG_3GP_CLASSIFICATION, NULL,
1326 gst_qt_mux_add_3gp_classification},
1330 /* qtdemux produces these for atoms it cannot parse */
1331 #define GST_QT_DEMUX_PRIVATE_TAG "private-qt-tag"
1334 gst_qt_mux_add_xmp_tags (GstQTMux * qtmux, const GstTagList * list)
1336 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1337 GstBuffer *xmp = NULL;
1339 /* adobe specs only have 'quicktime' and 'mp4',
1340 * but I guess we can extrapolate to gpp.
1341 * Keep mj2 out for now as we don't add any tags for it yet.
1342 * If you have further info about xmp on these formats, please share */
1343 if (qtmux_klass->format == GST_QT_MUX_FORMAT_MJ2)
1346 GST_DEBUG_OBJECT (qtmux, "Adding xmp tags");
1348 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT) {
1349 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1352 atom_udta_add_xmp_tags (&qtmux->moov->udta, xmp);
1355 /* for isom/mp4, it is a top level uuid atom */
1356 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1359 ainfo = build_uuid_xmp_atom (xmp);
1361 qtmux->extra_atoms = g_slist_prepend (qtmux->extra_atoms, ainfo);
1366 gst_buffer_unref (xmp);
1370 gst_qt_mux_add_metadata_tags (GstQTMux * qtmux, const GstTagList * list,
1373 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1376 const gchar *tag, *tag2;
1377 const GstTagToFourcc *tag_matches;
1379 switch (qtmux_klass->format) {
1380 case GST_QT_MUX_FORMAT_3GP:
1381 tag_matches = tag_matches_3gp;
1383 case GST_QT_MUX_FORMAT_MJ2:
1387 /* sort of iTunes style for mp4 and QT (?) */
1388 tag_matches = tag_matches_mp4;
1395 /* Clear existing tags so we don't add them over and over */
1396 atom_udta_clear_tags (udta);
1398 for (i = 0; tag_matches[i].fourcc; i++) {
1399 fourcc = tag_matches[i].fourcc;
1400 tag = tag_matches[i].gsttag;
1401 tag2 = tag_matches[i].gsttag2;
1403 g_assert (tag_matches[i].func);
1404 tag_matches[i].func (qtmux, list, udta, tag, tag2, fourcc);
1407 /* add unparsed blobs if present */
1408 if (gst_tag_exists (GST_QT_DEMUX_PRIVATE_TAG)) {
1411 num_tags = gst_tag_list_get_tag_size (list, GST_QT_DEMUX_PRIVATE_TAG);
1412 for (i = 0; i < num_tags; ++i) {
1413 GstSample *sample = NULL;
1415 const GstStructure *s;
1417 if (!gst_tag_list_get_sample_index (list, GST_QT_DEMUX_PRIVATE_TAG, i,
1420 buf = gst_sample_get_buffer (sample);
1422 if (buf && (s = gst_sample_get_info (sample))) {
1423 const gchar *style = NULL;
1426 gst_buffer_map (buf, &map, GST_MAP_READ);
1427 GST_DEBUG_OBJECT (qtmux,
1428 "Found private tag %d/%d; size %" G_GSIZE_FORMAT ", info %"
1429 GST_PTR_FORMAT, i, num_tags, map.size, s);
1430 if (s && (style = gst_structure_get_string (s, "style"))) {
1431 /* try to prevent some style tag ending up into another variant
1432 * (todo: make into a list if more cases) */
1433 if ((strcmp (style, "itunes") == 0 &&
1434 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) ||
1435 (strcmp (style, "iso") == 0 &&
1436 qtmux_klass->format == GST_QT_MUX_FORMAT_3GP)) {
1437 GST_DEBUG_OBJECT (qtmux, "Adding private tag");
1438 atom_udta_add_blob_tag (udta, map.data, map.size);
1441 gst_buffer_unmap (buf, &map);
1443 gst_sample_unref (sample);
1451 * Gets the tagsetter iface taglist and puts the known tags
1452 * into the output stream
1455 gst_qt_mux_setup_metadata (GstQTMux * qtmux)
1457 const GstTagList *tags = NULL;
1460 GST_OBJECT_LOCK (qtmux);
1461 if (qtmux->tags_changed) {
1462 tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (qtmux));
1463 qtmux->tags_changed = FALSE;
1465 GST_OBJECT_UNLOCK (qtmux);
1467 GST_LOG_OBJECT (qtmux, "tags: %" GST_PTR_FORMAT, tags);
1469 if (tags && !gst_tag_list_is_empty (tags)) {
1470 GstTagList *copy = gst_tag_list_copy (tags);
1472 GST_DEBUG_OBJECT (qtmux, "Removing bogus tags");
1473 gst_tag_list_remove_tag (copy, GST_TAG_VIDEO_CODEC);
1474 gst_tag_list_remove_tag (copy, GST_TAG_AUDIO_CODEC);
1475 gst_tag_list_remove_tag (copy, GST_TAG_CONTAINER_FORMAT);
1477 GST_DEBUG_OBJECT (qtmux, "Formatting tags");
1478 gst_qt_mux_add_metadata_tags (qtmux, copy, &qtmux->moov->udta);
1479 gst_qt_mux_add_xmp_tags (qtmux, copy);
1480 gst_tag_list_unref (copy);
1482 GST_DEBUG_OBJECT (qtmux, "No new tags received");
1485 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
1486 GstCollectData *cdata = (GstCollectData *) walk->data;
1487 GstQTPad *qpad = (GstQTPad *) cdata;
1488 GstPad *pad = qpad->collect.pad;
1490 if (qpad->tags_changed && qpad->tags) {
1491 GST_DEBUG_OBJECT (pad, "Adding tags");
1492 gst_tag_list_remove_tag (qpad->tags, GST_TAG_CONTAINER_FORMAT);
1493 gst_qt_mux_add_metadata_tags (qtmux, qpad->tags, &qpad->trak->udta);
1494 qpad->tags_changed = FALSE;
1495 GST_DEBUG_OBJECT (pad, "Tags added");
1497 GST_DEBUG_OBJECT (pad, "No new tags received");
1502 static inline GstBuffer *
1503 _gst_buffer_new_take_data (guint8 * data, guint size)
1507 buf = gst_buffer_new ();
1508 gst_buffer_append_memory (buf,
1509 gst_memory_new_wrapped (0, data, size, 0, size, data, g_free));
1514 static GstFlowReturn
1515 gst_qt_mux_send_buffer (GstQTMux * qtmux, GstBuffer * buf, guint64 * offset,
1521 g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
1523 size = gst_buffer_get_size (buf);
1524 GST_LOG_OBJECT (qtmux, "sending buffer size %" G_GSIZE_FORMAT, size);
1526 if (mind_fast && qtmux->fast_start_file) {
1530 GST_LOG_OBJECT (qtmux, "to temporary file");
1531 gst_buffer_map (buf, &map, GST_MAP_READ);
1532 ret = fwrite (map.data, sizeof (guint8), map.size, qtmux->fast_start_file);
1533 gst_buffer_unmap (buf, &map);
1534 gst_buffer_unref (buf);
1540 GST_LOG_OBJECT (qtmux, "downstream");
1541 res = gst_pad_push (qtmux->srcpad, buf);
1544 if (G_LIKELY (offset))
1552 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1553 ("Failed to write to temporary file"), GST_ERROR_SYSTEM);
1554 return GST_FLOW_ERROR;
1559 gst_qt_mux_seek_to_beginning (FILE * f)
1562 if (fseeko (f, (off_t) 0, SEEK_SET) != 0)
1564 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1565 if (lseek (fileno (f), (off_t) 0, SEEK_SET) == (off_t) - 1)
1568 if (fseek (f, (long) 0, SEEK_SET) != 0)
1574 static GstFlowReturn
1575 gst_qt_mux_send_buffered_data (GstQTMux * qtmux, guint64 * offset)
1577 GstFlowReturn ret = GST_FLOW_OK;
1578 GstBuffer *buf = NULL;
1580 if (fflush (qtmux->fast_start_file))
1583 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1586 /* hm, this could all take a really really long time,
1587 * but there may not be another way to get moov atom first
1588 * (somehow optimize copy?) */
1589 GST_DEBUG_OBJECT (qtmux, "Sending buffered data");
1590 while (ret == GST_FLOW_OK) {
1591 const int bufsize = 4096;
1595 buf = gst_buffer_new_and_alloc (bufsize);
1596 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1597 size = fread (map.data, sizeof (guint8), bufsize, qtmux->fast_start_file);
1599 gst_buffer_unmap (buf, &map);
1602 GST_LOG_OBJECT (qtmux, "Pushing buffered buffer of size %d", (gint) size);
1603 gst_buffer_unmap (buf, &map);
1604 if (size != bufsize)
1605 gst_buffer_set_size (buf, size);
1606 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
1610 gst_buffer_unref (buf);
1612 if (ftruncate (fileno (qtmux->fast_start_file), 0))
1614 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1622 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1623 ("Failed to flush temporary file"), GST_ERROR_SYSTEM);
1624 ret = GST_FLOW_ERROR;
1629 GST_ELEMENT_ERROR (qtmux, RESOURCE, SEEK,
1630 ("Failed to seek temporary file"), GST_ERROR_SYSTEM);
1631 ret = GST_FLOW_ERROR;
1636 /* clear descriptor so we don't remove temp file later on,
1637 * might be possible to recover */
1638 fclose (qtmux->fast_start_file);
1639 qtmux->fast_start_file = NULL;
1645 * Sends the initial mdat atom fields (size fields and fourcc type),
1646 * the subsequent buffers are considered part of it's data.
1647 * As we can't predict the amount of data that we are going to place in mdat
1648 * we need to record the position of the size field in the stream so we can
1649 * seek back to it later and update when the streams have finished.
1651 static GstFlowReturn
1652 gst_qt_mux_send_mdat_header (GstQTMux * qtmux, guint64 * off, guint64 size,
1653 gboolean extended, gboolean fsync_after)
1658 GST_DEBUG_OBJECT (qtmux, "Sending mdat's atom header, "
1659 "size %" G_GUINT64_FORMAT, size);
1661 /* if the qtmux state is EOS, really write the mdat, otherwise
1662 * allow size == 0 for a placeholder atom */
1663 if (qtmux->state == GST_QT_MUX_STATE_EOS || size > 0)
1667 gboolean large_file = (size > MDAT_LARGE_FILE_LIMIT);
1668 /* Always write 16-bytes, but put a free atom first
1669 * if the size is < 4GB. */
1670 buf = gst_buffer_new_and_alloc (16);
1671 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1674 /* Write extended mdat header and large_size field */
1675 GST_WRITE_UINT32_BE (map.data, 1);
1676 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1677 GST_WRITE_UINT64_BE (map.data + 8, size + 8);
1679 /* Write an empty free atom, then standard 32-bit mdat */
1680 GST_WRITE_UINT32_BE (map.data, 8);
1681 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_free);
1682 GST_WRITE_UINT32_BE (map.data + 8, size);
1683 GST_WRITE_UINT32_LE (map.data + 12, FOURCC_mdat);
1685 gst_buffer_unmap (buf, &map);
1687 buf = gst_buffer_new_and_alloc (8);
1688 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1690 /* Vanilla 32-bit mdat */
1691 GST_WRITE_UINT32_BE (map.data, size);
1692 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1693 gst_buffer_unmap (buf, &map);
1696 GST_LOG_OBJECT (qtmux, "Pushing mdat header");
1698 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1700 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1705 * We get the position of the mdat size field, seek back to it
1706 * and overwrite with the real value
1708 static GstFlowReturn
1709 gst_qt_mux_update_mdat_size (GstQTMux * qtmux, guint64 mdat_pos,
1710 guint64 mdat_size, guint64 * offset, gboolean fsync_after)
1714 /* We must have recorded the mdat position for this to work */
1715 g_assert (mdat_pos != 0);
1717 /* seek and rewrite the header */
1718 gst_segment_init (&segment, GST_FORMAT_BYTES);
1719 segment.start = mdat_pos;
1720 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1722 return gst_qt_mux_send_mdat_header (qtmux, offset, mdat_size, TRUE,
1726 static GstFlowReturn
1727 gst_qt_mux_send_ftyp (GstQTMux * qtmux, guint64 * off)
1730 guint64 size = 0, offset = 0;
1731 guint8 *data = NULL;
1733 GST_DEBUG_OBJECT (qtmux, "Sending ftyp atom");
1735 if (!atom_ftyp_copy_data (qtmux->ftyp, &data, &size, &offset))
1736 goto serialize_error;
1738 buf = _gst_buffer_new_take_data (data, offset);
1740 GST_LOG_OBJECT (qtmux, "Pushing ftyp");
1741 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1746 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1747 ("Failed to serialize ftyp"));
1748 return GST_FLOW_ERROR;
1753 gst_qt_mux_prepare_ftyp (GstQTMux * qtmux, AtomFTYP ** p_ftyp,
1754 GstBuffer ** p_prefix)
1756 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1757 guint32 major, version;
1759 GstBuffer *prefix = NULL;
1760 AtomFTYP *ftyp = NULL;
1762 GST_DEBUG_OBJECT (qtmux, "Preparing ftyp and possible prefix atom");
1764 /* init and send context and ftyp based on current property state */
1765 gst_qt_mux_map_format_to_header (qtmux_klass->format, &prefix, &major,
1766 &version, &comp, qtmux->moov, qtmux->longest_chunk,
1767 qtmux->fast_start_file != NULL);
1768 ftyp = atom_ftyp_new (qtmux->context, major, version, comp);
1775 gst_buffer_unref (prefix);
1780 static GstFlowReturn
1781 gst_qt_mux_prepare_and_send_ftyp (GstQTMux * qtmux)
1783 GstFlowReturn ret = GST_FLOW_OK;
1784 GstBuffer *prefix = NULL;
1786 GST_DEBUG_OBJECT (qtmux, "Preparing to send ftyp atom");
1788 /* init and send context and ftyp based on current property state */
1790 atom_ftyp_free (qtmux->ftyp);
1793 gst_qt_mux_prepare_ftyp (qtmux, &qtmux->ftyp, &prefix);
1795 ret = gst_qt_mux_send_buffer (qtmux, prefix, &qtmux->header_size, FALSE);
1796 if (ret != GST_FLOW_OK)
1799 return gst_qt_mux_send_ftyp (qtmux, &qtmux->header_size);
1803 gst_qt_mux_set_header_on_caps (GstQTMux * mux, GstBuffer * buf)
1805 GstStructure *structure;
1806 GValue array = { 0 };
1807 GValue value = { 0 };
1808 GstCaps *caps, *tcaps;
1810 tcaps = gst_pad_get_current_caps (mux->srcpad);
1811 caps = gst_caps_copy (tcaps);
1812 gst_caps_unref (tcaps);
1814 structure = gst_caps_get_structure (caps, 0);
1816 g_value_init (&array, GST_TYPE_ARRAY);
1818 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
1819 g_value_init (&value, GST_TYPE_BUFFER);
1820 gst_value_take_buffer (&value, gst_buffer_ref (buf));
1821 gst_value_array_append_value (&array, &value);
1822 g_value_unset (&value);
1824 gst_structure_set_value (structure, "streamheader", &array);
1825 g_value_unset (&array);
1826 gst_pad_set_caps (mux->srcpad, caps);
1827 gst_caps_unref (caps);
1831 * Write out a free space atom. The offset is adjusted by the full
1832 * size, but a smaller buffer is sent
1834 static GstFlowReturn
1835 gst_qt_mux_send_free_atom (GstQTMux * qtmux, guint64 * off, guint32 size,
1836 gboolean fsync_after)
1840 guint8 *data = NULL;
1841 guint64 offset = 0, bsize = 0;
1844 GST_DEBUG_OBJECT (qtmux, "Sending free atom header of size %u", size);
1846 /* We can't make a free space atom smaller than the header */
1850 node_header = g_malloc0 (sizeof (Atom));
1851 node_header->type = FOURCC_free;
1852 node_header->size = size;
1855 if (atom_copy_data (node_header, &data, &bsize, &offset) == 0)
1856 goto serialize_error;
1858 buf = _gst_buffer_new_take_data (data, offset);
1859 g_free (node_header);
1862 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1864 GST_LOG_OBJECT (qtmux, "Pushing free atom");
1865 ret = gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1872 /* Make sure downstream position ends up at the end of this free box */
1873 gst_segment_init (&segment, GST_FORMAT_BYTES);
1874 segment.start = *off;
1875 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1883 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1884 ("Not enough free reserved space"));
1885 return GST_FLOW_ERROR;
1889 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1890 ("Failed to serialize mdat"));
1891 g_free (node_header);
1892 return GST_FLOW_ERROR;
1897 gst_qt_mux_configure_moov (GstQTMux * qtmux)
1899 gboolean fragmented = FALSE;
1902 GST_OBJECT_LOCK (qtmux);
1903 timescale = qtmux->timescale;
1904 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED ||
1905 qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE)
1907 GST_OBJECT_UNLOCK (qtmux);
1909 /* inform lower layers of our property wishes, and determine duration.
1910 * Let moov take care of this using its list of traks;
1911 * so that released pads are also included */
1912 GST_DEBUG_OBJECT (qtmux, "Updating timescale to %" G_GUINT32_FORMAT,
1914 atom_moov_update_timescale (qtmux->moov, timescale);
1915 atom_moov_set_fragmented (qtmux->moov, fragmented);
1917 atom_moov_update_duration (qtmux->moov);
1920 static GstFlowReturn
1921 gst_qt_mux_send_moov (GstQTMux * qtmux, guint64 * _offset,
1922 guint64 padded_moov_size, gboolean mind_fast, gboolean fsync_after)
1924 guint64 offset = 0, size = 0;
1927 GstFlowReturn ret = GST_FLOW_OK;
1929 /* serialize moov */
1932 GST_LOG_OBJECT (qtmux, "Copying movie header into buffer");
1933 if (!atom_moov_copy_data (qtmux->moov, &data, &size, &offset))
1934 goto serialize_error;
1935 qtmux->last_moov_size = offset;
1937 /* Check we have enough reserved space for this and a Free atom */
1938 if (padded_moov_size > 0 && offset + 8 > padded_moov_size)
1939 goto too_small_reserved;
1940 buf = _gst_buffer_new_take_data (data, offset);
1941 GST_DEBUG_OBJECT (qtmux, "Pushing moov atoms");
1943 /* If at EOS, this is the final moov, put in the streamheader
1944 * (apparently used by a flumotion util) */
1945 if (qtmux->state == GST_QT_MUX_STATE_EOS)
1946 gst_qt_mux_set_header_on_caps (qtmux, buf);
1949 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1950 ret = gst_qt_mux_send_buffer (qtmux, buf, _offset, mind_fast);
1952 /* Write out a free atom if needed */
1953 if (ret == GST_FLOW_OK && offset < padded_moov_size) {
1954 GST_LOG_OBJECT (qtmux, "Writing out free atom of size %u",
1955 (guint32) (padded_moov_size - offset));
1957 gst_qt_mux_send_free_atom (qtmux, _offset, padded_moov_size - offset,
1964 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
1965 ("Not enough free reserved header space"),
1966 ("Needed %" G_GUINT64_FORMAT " bytes, reserved %" G_GUINT64_FORMAT,
1967 offset, padded_moov_size));
1968 return GST_FLOW_ERROR;
1973 return GST_FLOW_ERROR;
1977 /* either calculates size of extra atoms or pushes them */
1978 static GstFlowReturn
1979 gst_qt_mux_send_extra_atoms (GstQTMux * qtmux, gboolean send, guint64 * offset,
1983 guint64 loffset = 0, size = 0;
1985 GstFlowReturn ret = GST_FLOW_OK;
1987 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
1988 AtomInfo *ainfo = (AtomInfo *) walk->data;
1992 if (!ainfo->copy_data_func (ainfo->atom,
1993 send ? &data : NULL, &size, &loffset))
1994 goto serialize_error;
1999 GST_DEBUG_OBJECT (qtmux,
2000 "Pushing extra top-level atom %" GST_FOURCC_FORMAT,
2001 GST_FOURCC_ARGS (ainfo->atom->type));
2002 buf = _gst_buffer_new_take_data (data, loffset);
2003 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
2004 if (ret != GST_FLOW_OK)
2017 return GST_FLOW_ERROR;
2022 gst_qt_mux_downstream_is_seekable (GstQTMux * qtmux)
2024 gboolean seekable = FALSE;
2025 GstQuery *query = gst_query_new_seeking (GST_FORMAT_BYTES);
2027 if (gst_pad_peer_query (qtmux->srcpad, query)) {
2028 gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
2029 GST_INFO_OBJECT (qtmux, "downstream is %sseekable", seekable ? "" : "not ");
2031 /* have to assume seeking is not supported if query not handled downstream */
2032 GST_WARNING_OBJECT (qtmux, "downstream did not handle seeking query");
2035 gst_query_unref (query);
2041 gst_qt_mux_prepare_moov_recovery (GstQTMux * qtmux)
2044 gboolean fail = FALSE;
2045 AtomFTYP *ftyp = NULL;
2046 GstBuffer *prefix = NULL;
2048 GST_DEBUG_OBJECT (qtmux, "Opening moov recovery file: %s",
2049 qtmux->moov_recov_file_path);
2051 qtmux->moov_recov_file = g_fopen (qtmux->moov_recov_file_path, "wb+");
2052 if (qtmux->moov_recov_file == NULL) {
2053 GST_WARNING_OBJECT (qtmux, "Failed to open moov recovery file in %s",
2054 qtmux->moov_recov_file_path);
2058 gst_qt_mux_prepare_ftyp (qtmux, &ftyp, &prefix);
2060 if (!atoms_recov_write_headers (qtmux->moov_recov_file, ftyp, prefix,
2061 qtmux->moov, qtmux->timescale, g_slist_length (qtmux->sinkpads))) {
2062 GST_WARNING_OBJECT (qtmux, "Failed to write moov recovery file " "headers");
2066 atom_ftyp_free (ftyp);
2068 gst_buffer_unref (prefix);
2070 for (walk = qtmux->sinkpads; walk && !fail; walk = g_slist_next (walk)) {
2071 GstCollectData *cdata = (GstCollectData *) walk->data;
2072 GstQTPad *qpad = (GstQTPad *) cdata;
2073 /* write info for each stream */
2074 fail = atoms_recov_write_trak_info (qtmux->moov_recov_file, qpad->trak);
2076 GST_WARNING_OBJECT (qtmux, "Failed to write trak info to recovery "
2084 fclose (qtmux->moov_recov_file);
2085 qtmux->moov_recov_file = NULL;
2088 static GstFlowReturn
2089 gst_qt_mux_start_file (GstQTMux * qtmux)
2091 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
2092 GstFlowReturn ret = GST_FLOW_OK;
2096 GstClockTime reserved_max_duration;
2097 guint reserved_bytes_per_sec_per_trak;
2099 GST_DEBUG_OBJECT (qtmux, "starting file");
2101 GST_OBJECT_LOCK (qtmux);
2102 reserved_max_duration = qtmux->reserved_max_duration;
2103 reserved_bytes_per_sec_per_trak = qtmux->reserved_bytes_per_sec_per_trak;
2104 GST_OBJECT_UNLOCK (qtmux);
2106 /* stream-start (FIXME: create id based on input ids) */
2107 g_snprintf (s_id, sizeof (s_id), "qtmux-%08x", g_random_int ());
2108 gst_pad_push_event (qtmux->srcpad, gst_event_new_stream_start (s_id));
2110 caps = gst_caps_copy (gst_pad_get_pad_template_caps (qtmux->srcpad));
2111 /* qtmux has structure with and without variant, remove all but the first */
2112 while (gst_caps_get_size (caps) > 1)
2113 gst_caps_remove_structure (caps, 1);
2114 gst_pad_set_caps (qtmux->srcpad, caps);
2115 gst_caps_unref (caps);
2117 /* Default is 'normal' mode */
2118 qtmux->mux_mode = GST_QT_MUX_MODE_MOOV_AT_END;
2120 /* Require a sensible fragment duration when muxing
2121 * using the ISML muxer */
2122 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML &&
2123 qtmux->fragment_duration == 0)
2126 if (qtmux->fragment_duration > 0) {
2127 if (qtmux->streamable)
2128 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE;
2130 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED;
2131 } else if (qtmux->fast_start) {
2132 qtmux->mux_mode = GST_QT_MUX_MODE_FAST_START;
2133 } else if (reserved_max_duration != GST_CLOCK_TIME_NONE) {
2134 qtmux->mux_mode = GST_QT_MUX_MODE_ROBUST_RECORDING;
2137 switch (qtmux->mux_mode) {
2138 case GST_QT_MUX_MODE_MOOV_AT_END:
2139 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2140 /* We have to be able to seek to rewrite the mdat header, or any
2141 * moov atom we write will not be visible in the file, because an
2142 * MDAT with 0 as the size covers the rest of the file. A file
2143 * with no moov is not playable, so error out now. */
2144 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2145 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2146 ("Downstream is not seekable - will not be able to create a playable file"),
2148 return GST_FLOW_ERROR;
2151 case GST_QT_MUX_MODE_FAST_START:
2152 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2153 break; /* Don't need seekability, ignore */
2154 case GST_QT_MUX_MODE_FRAGMENTED:
2155 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2156 GST_WARNING_OBJECT (qtmux, "downstream is not seekable, but "
2157 "streamable=false. Will ignore that and create streamable output "
2159 qtmux->streamable = TRUE;
2160 g_object_notify (G_OBJECT (qtmux), "streamable");
2165 /* let downstream know we think in BYTES and expect to do seeking later on */
2166 gst_segment_init (&segment, GST_FORMAT_BYTES);
2167 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2169 GST_OBJECT_LOCK (qtmux);
2171 if (qtmux->timescale == 0) {
2172 guint32 suggested_timescale = 0;
2175 /* Calculate a reasonable timescale for the moov:
2176 * If there is video, it is the biggest video track timescale or an even
2177 * multiple of it if it's smaller than 1800.
2178 * Otherwise it is 1800 */
2179 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
2180 GstCollectData *cdata = (GstCollectData *) walk->data;
2181 GstQTPad *qpad = (GstQTPad *) cdata;
2187 if (!qpad->trak->mdia.minf.vmhd)
2190 suggested_timescale =
2191 MAX (qpad->trak->mdia.mdhd.time_info.timescale, suggested_timescale);
2194 if (suggested_timescale == 0)
2195 suggested_timescale = 1800;
2197 while (suggested_timescale < 1800)
2198 suggested_timescale *= 2;
2200 qtmux->timescale = suggested_timescale;
2203 /* initialize our moov recovery file */
2204 if (qtmux->moov_recov_file_path) {
2205 gst_qt_mux_prepare_moov_recovery (qtmux);
2208 /* Make sure the first time we update the moov, we'll
2209 * include any tagsetter tags */
2210 qtmux->tags_changed = TRUE;
2212 GST_OBJECT_UNLOCK (qtmux);
2215 * send mdat header if already needed, and mark position for later update.
2216 * We don't send ftyp now if we are on fast start mode, because we can
2217 * better fine tune using the information we gather to create the whole moov
2220 switch (qtmux->mux_mode) {
2221 case GST_QT_MUX_MODE_MOOV_AT_END:
2222 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2223 if (ret != GST_FLOW_OK)
2226 /* Store this as the mdat offset for later updating
2227 * when we write the moov */
2228 qtmux->mdat_pos = qtmux->header_size;
2229 /* extended atom in case we go over 4GB while writing and need
2230 * the full 64-bit atom */
2232 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2235 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2237 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2238 if (ret != GST_FLOW_OK)
2241 /* Pad ftyp out to an 8-byte boundary before starting the moov
2242 * ping pong region. It should be well less than 1 disk sector,
2243 * unless there's a bajillion compatible types listed,
2244 * but let's be sure the free atom doesn't cross a sector
2245 * boundary anyway */
2246 if (qtmux->header_size % 8) {
2247 /* Extra 8 bytes for the padding free atom header */
2248 guint padding = (guint) (16 - (qtmux->header_size % 8));
2249 GST_LOG_OBJECT (qtmux, "Rounding ftyp by %u bytes", padding);
2251 gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, padding,
2253 if (ret != GST_FLOW_OK)
2257 /* Store this as the moov offset for later updating.
2258 * We record mdat position below */
2259 qtmux->moov_pos = qtmux->header_size;
2261 /* Set up the initial 'ping' state of the ping-pong buffers */
2262 qtmux->reserved_moov_first_active = TRUE;
2264 gst_qt_mux_configure_moov (qtmux);
2265 gst_qt_mux_setup_metadata (qtmux);
2266 /* Empty free atom to begin, starting on an 8-byte boundary */
2267 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, 8, FALSE);
2268 if (ret != GST_FLOW_OK)
2270 /* Moov header, not padded yet */
2271 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2272 if (ret != GST_FLOW_OK)
2274 /* The moov we just sent contains the 'base' size of the moov, before
2275 * we put in any time-dependent per-trak data. Use that to make
2276 * a good estimate of how much extra to reserve */
2277 /* Calculate how much space to reserve for our MOOV atom.
2278 * We actually reserve twice that, for ping-pong buffers */
2279 qtmux->base_moov_size = qtmux->last_moov_size;
2280 GST_LOG_OBJECT (qtmux, "Base moov size is %u before any indexes",
2281 qtmux->base_moov_size);
2282 qtmux->reserved_moov_size = qtmux->base_moov_size +
2283 gst_util_uint64_scale (reserved_max_duration,
2284 reserved_bytes_per_sec_per_trak *
2285 atom_moov_get_trak_count (qtmux->moov), GST_SECOND);
2287 /* Need space for at least 4 atom headers. More really, but
2288 * this as an absolute minimum */
2289 if (qtmux->reserved_moov_size < 4 * 8)
2290 goto reserved_moov_too_small;
2292 GST_DEBUG_OBJECT (qtmux, "reserving header area of size %u",
2293 2 * qtmux->reserved_moov_size + 16);
2295 GST_OBJECT_LOCK (qtmux);
2296 qtmux->reserved_duration_remaining =
2297 gst_util_uint64_scale (qtmux->reserved_moov_size -
2298 qtmux->base_moov_size, GST_SECOND,
2299 reserved_bytes_per_sec_per_trak *
2300 atom_moov_get_trak_count (qtmux->moov));
2301 GST_OBJECT_UNLOCK (qtmux);
2303 /* Now that we know how much reserved space is targetted,
2304 * output a free atom to fill the extra reserved */
2305 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2306 qtmux->reserved_moov_size - qtmux->base_moov_size, FALSE);
2307 if (ret != GST_FLOW_OK)
2310 /* Then a free atom containing 'pong' buffer, with an
2311 * extra 8 bytes to account for the free atom header itself */
2312 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2313 qtmux->reserved_moov_size + 8, FALSE);
2314 if (ret != GST_FLOW_OK)
2317 /* extra atoms go after the free/moov(s), before the mdat */
2319 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2320 if (ret != GST_FLOW_OK)
2323 qtmux->mdat_pos = qtmux->header_size;
2324 /* extended atom in case we go over 4GB while writing and need
2325 * the full 64-bit atom */
2327 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2330 case GST_QT_MUX_MODE_FAST_START:
2331 GST_OBJECT_LOCK (qtmux);
2332 qtmux->fast_start_file = g_fopen (qtmux->fast_start_file_path, "wb+");
2333 if (!qtmux->fast_start_file)
2335 GST_OBJECT_UNLOCK (qtmux);
2336 /* send a dummy buffer for preroll */
2337 ret = gst_qt_mux_send_buffer (qtmux, gst_buffer_new (), NULL, FALSE);
2339 case GST_QT_MUX_MODE_FRAGMENTED:
2340 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2341 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2342 if (ret != GST_FLOW_OK)
2344 /* store the moov pos so we can update the duration later
2345 * in non-streamable mode */
2346 qtmux->moov_pos = qtmux->header_size;
2348 GST_DEBUG_OBJECT (qtmux, "fragment duration %d ms, writing headers",
2349 qtmux->fragment_duration);
2350 /* also used as snapshot marker to indicate fragmented file */
2351 qtmux->fragment_sequence = 1;
2352 /* prepare moov and/or tags */
2353 gst_qt_mux_configure_moov (qtmux);
2354 gst_qt_mux_setup_metadata (qtmux);
2355 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2356 if (ret != GST_FLOW_OK)
2360 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2361 if (ret != GST_FLOW_OK)
2363 /* prepare index if not streamable */
2364 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED)
2365 qtmux->mfra = atom_mfra_new (qtmux->context);
2373 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2374 ("Cannot create an ISML file with 0 fragment duration"), (NULL));
2375 return GST_FLOW_ERROR;
2377 reserved_moov_too_small:
2379 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2380 ("Not enough reserved space for creating headers"), (NULL));
2381 return GST_FLOW_ERROR;
2385 GST_ELEMENT_ERROR (qtmux, RESOURCE, OPEN_READ_WRITE,
2386 (("Could not open temporary file \"%s\""),
2387 qtmux->fast_start_file_path), GST_ERROR_SYSTEM);
2388 GST_OBJECT_UNLOCK (qtmux);
2389 return GST_FLOW_ERROR;
2393 static GstFlowReturn
2394 gst_qt_mux_send_last_buffers (GstQTMux * qtmux)
2396 GstFlowReturn ret = GST_FLOW_OK;
2399 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2400 GstCollectData *cdata = (GstCollectData *) walk->data;
2401 GstQTPad *qtpad = (GstQTPad *) cdata;
2403 /* avoid add_buffer complaining if not negotiated
2404 * in which case no buffers either, so skipping */
2405 if (!qtpad->fourcc) {
2406 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2407 GST_PAD_NAME (qtpad->collect.pad));
2411 /* send last buffer; also flushes possibly queued buffers/ts */
2412 GST_DEBUG_OBJECT (qtmux, "Sending the last buffer for pad %s",
2413 GST_PAD_NAME (qtpad->collect.pad));
2414 ret = gst_qt_mux_add_buffer (qtmux, qtpad, NULL);
2415 if (ret != GST_FLOW_OK) {
2416 GST_WARNING_OBJECT (qtmux, "Failed to send last buffer for %s, "
2417 "flow return: %s", GST_PAD_NAME (qtpad->collect.pad),
2418 gst_flow_get_name (ret));
2426 gst_qt_mux_update_global_statistics (GstQTMux * qtmux)
2430 /* for setting some subtitles fields */
2431 guint max_width = 0;
2432 guint max_height = 0;
2434 qtmux->first_ts = qtmux->last_dts = GST_CLOCK_TIME_NONE;
2436 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2437 GstCollectData *cdata = (GstCollectData *) walk->data;
2438 GstQTPad *qtpad = (GstQTPad *) cdata;
2440 if (!qtpad->fourcc) {
2441 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2442 GST_PAD_NAME (qtpad->collect.pad));
2446 /* having flushed above, can check for buffers now */
2447 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2448 /* determine max stream duration */
2449 if (!GST_CLOCK_TIME_IS_VALID (qtmux->last_dts)
2450 || qtpad->last_dts > qtmux->last_dts) {
2451 qtmux->last_dts = qtpad->last_dts;
2453 if (!GST_CLOCK_TIME_IS_VALID (qtmux->first_ts)
2454 || qtpad->first_ts < qtmux->first_ts) {
2455 qtmux->first_ts = qtpad->first_ts;
2459 /* subtitles need to know the video width/height,
2460 * it is stored shifted 16 bits to the left according to the
2462 max_width = MAX (max_width, (qtpad->trak->tkhd.width >> 16));
2463 max_height = MAX (max_height, (qtpad->trak->tkhd.height >> 16));
2465 /* update average bitrate of streams if needed */
2467 guint32 avgbitrate = 0;
2468 guint32 maxbitrate = qtpad->max_bitrate;
2470 if (qtpad->avg_bitrate)
2471 avgbitrate = qtpad->avg_bitrate;
2472 else if (qtpad->total_duration > 0)
2473 avgbitrate = (guint32) gst_util_uint64_scale_round (qtpad->total_bytes,
2474 8 * GST_SECOND, qtpad->total_duration);
2476 atom_trak_update_bitrates (qtpad->trak, avgbitrate, maxbitrate);
2480 /* need to update values on subtitle traks now that we know the
2481 * max width and height */
2482 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2483 GstCollectData *cdata = (GstCollectData *) walk->data;
2484 GstQTPad *qtpad = (GstQTPad *) cdata;
2486 if (!qtpad->fourcc) {
2487 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2488 GST_PAD_NAME (qtpad->collect.pad));
2492 if (qtpad->fourcc == FOURCC_tx3g) {
2493 atom_trak_tx3g_update_dimension (qtpad->trak, max_width, max_height);
2498 /* Called after gst_qt_mux_update_global_statistics() updates the
2499 * first_ts tracking, to create/set edit lists for delayed streams */
2501 gst_qt_mux_update_edit_lists (GstQTMux * qtmux)
2505 GST_DEBUG_OBJECT (qtmux, "Media first ts selected: %" GST_TIME_FORMAT,
2506 GST_TIME_ARGS (qtmux->first_ts));
2507 /* add/update EDTSs for late streams. configure_moov will have
2508 * set the trak durations above by summing the sample tables,
2509 * here we extend that if needing to insert an empty segment */
2510 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2511 GstCollectData *cdata = (GstCollectData *) walk->data;
2512 GstQTPad *qtpad = (GstQTPad *) cdata;
2514 atom_trak_edts_clear (qtpad->trak);
2516 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2517 guint32 lateness = 0;
2518 guint32 duration = qtpad->trak->tkhd.duration;
2521 has_gap = (qtpad->first_ts > (qtmux->first_ts + qtpad->dts_adjustment));
2526 diff = qtpad->first_ts - (qtmux->first_ts + qtpad->dts_adjustment);
2527 lateness = gst_util_uint64_scale_round (diff,
2528 qtmux->timescale, GST_SECOND);
2531 GST_DEBUG_OBJECT (qtmux,
2532 "Pad %s is a late stream by %" GST_TIME_FORMAT,
2533 GST_PAD_NAME (qtpad->collect.pad), GST_TIME_ARGS (lateness));
2535 atom_trak_set_elst_entry (qtpad->trak, 0, lateness, (guint32) - 1,
2536 (guint32) (1 * 65536.0));
2540 /* Always write an edit list for the whole track. In general this is not
2541 * necessary except for the case of having a gap or DTS adjustment but
2542 * it allows to give the whole track's duration in the usually more
2543 * accurate media timescale
2546 GstClockTime ctts = 0;
2547 guint32 media_start;
2549 if (qtpad->first_ts > qtpad->first_dts)
2550 ctts = qtpad->first_ts - qtpad->first_dts;
2552 media_start = gst_util_uint64_scale_round (ctts,
2553 atom_trak_get_timescale (qtpad->trak), GST_SECOND);
2555 atom_trak_set_elst_entry (qtpad->trak, 1, duration, media_start,
2556 (guint32) (1 * 65536.0));
2559 /* need to add the empty time to the trak duration */
2560 duration += lateness;
2561 qtpad->trak->tkhd.duration = duration;
2562 if (qtpad->tc_trak) {
2563 qtpad->tc_trak->tkhd.duration = duration;
2564 qtpad->tc_trak->mdia.mdhd.time_info.duration = duration;
2567 /* And possibly grow the moov duration */
2568 if (duration > qtmux->moov->mvhd.time_info.duration) {
2569 qtmux->moov->mvhd.time_info.duration = duration;
2570 qtmux->moov->mvex.mehd.fragment_duration = duration;
2576 static GstFlowReturn
2577 gst_qt_mux_update_timecode (GstQTMux * qtmux)
2582 guint64 offset = qtmux->tc_pos;
2584 g_assert (qtmux->tc_pos != -1);
2586 gst_segment_init (&segment, GST_FORMAT_BYTES);
2587 segment.start = offset;
2588 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2590 buf = gst_buffer_new_and_alloc (4);
2591 gst_buffer_map (buf, &map, GST_MAP_WRITE);
2593 GST_WRITE_UINT32_BE (map.data,
2594 gst_video_time_code_frames_since_daily_jam (qtmux->first_tc));
2595 gst_buffer_unmap (buf, &map);
2597 /* Reset this value, so the timecode won't be re-rewritten */
2600 return gst_qt_mux_send_buffer (qtmux, buf, &offset, FALSE);
2603 static GstFlowReturn
2604 gst_qt_mux_stop_file (GstQTMux * qtmux)
2606 gboolean ret = GST_FLOW_OK;
2607 guint64 offset = 0, size = 0;
2608 gboolean large_file;
2610 GST_DEBUG_OBJECT (qtmux, "Updating remaining values and sending last data");
2612 /* pushing last buffers for each pad */
2613 if ((ret = gst_qt_mux_send_last_buffers (qtmux)) != GST_FLOW_OK)
2616 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) {
2617 /* Streamable mode; no need to write duration or MFRA */
2618 GST_DEBUG_OBJECT (qtmux, "streamable file; nothing to stop");
2622 gst_qt_mux_update_global_statistics (qtmux);
2623 if (qtmux->tc_pos != -1) {
2624 /* File is being stopped and timecode hasn't been updated. Update it now
2625 * with whatever we have */
2626 ret = gst_qt_mux_update_timecode (qtmux);
2627 if (ret != GST_FLOW_OK)
2631 switch (qtmux->mux_mode) {
2632 case GST_QT_MUX_MODE_FRAGMENTED:{
2634 guint8 *data = NULL;
2638 GST_DEBUG_OBJECT (qtmux, "adding mfra");
2639 if (!atom_mfra_copy_data (qtmux->mfra, &data, &size, &offset))
2640 goto serialize_error;
2641 buf = _gst_buffer_new_take_data (data, offset);
2642 ret = gst_qt_mux_send_buffer (qtmux, buf, NULL, FALSE);
2643 if (ret != GST_FLOW_OK)
2646 /* only mvex duration is updated,
2647 * mvhd should be consistent with empty moov
2648 * (but TODO maybe some clients do not handle that well ?) */
2649 qtmux->moov->mvex.mehd.fragment_duration =
2650 gst_util_uint64_scale (qtmux->last_dts, qtmux->timescale, GST_SECOND);
2651 GST_DEBUG_OBJECT (qtmux, "rewriting moov with mvex duration %"
2652 GST_TIME_FORMAT, GST_TIME_ARGS (qtmux->last_dts));
2653 /* seek and rewrite the header */
2654 gst_segment_init (&segment, GST_FORMAT_BYTES);
2655 segment.start = qtmux->moov_pos;
2656 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2657 /* no need to seek back */
2658 return gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2660 case GST_QT_MUX_MODE_ROBUST_RECORDING:{
2661 ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
2662 if (G_UNLIKELY (ret != GST_FLOW_OK))
2664 /* Finalise by writing the final size into the mdat. Up until now
2665 * it's been 0, which means 'rest of the file'
2666 * No need to seek back after this, we won't write any more */
2667 return gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2668 qtmux->mdat_size, NULL, TRUE);
2674 /* Moov-at-end or fast-start mode from here down */
2675 gst_qt_mux_configure_moov (qtmux);
2677 gst_qt_mux_update_edit_lists (qtmux);
2679 /* tags into file metadata */
2680 gst_qt_mux_setup_metadata (qtmux);
2682 large_file = (qtmux->mdat_size > MDAT_LARGE_FILE_LIMIT);
2684 switch (qtmux->mux_mode) {
2685 case GST_QT_MUX_MODE_FAST_START:{
2686 /* if faststart, update the offset of the atoms in the movie with the offset
2687 * that the movie headers before mdat will cause.
2688 * Also, send the ftyp */
2691 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2692 if (ret != GST_FLOW_OK) {
2695 /* copy into NULL to obtain size */
2696 if (!atom_moov_copy_data (qtmux->moov, NULL, &size, &offset))
2697 goto serialize_error;
2698 GST_DEBUG_OBJECT (qtmux, "calculated moov atom size %" G_GUINT64_FORMAT,
2700 offset += qtmux->header_size + (large_file ? 16 : 8);
2702 /* sum up with the extra atoms size */
2703 ret = gst_qt_mux_send_extra_atoms (qtmux, FALSE, &offset, FALSE);
2704 if (ret != GST_FLOW_OK)
2709 offset = qtmux->header_size;
2713 /* Now that we know the size of moov + extra atoms, we can adjust
2714 * the chunk offsets stored into the moov */
2715 atom_moov_chunks_set_offset (qtmux->moov, offset);
2717 /* write out moov and extra atoms */
2718 /* note: as of this point, we no longer care about tracking written data size,
2719 * since there is no more use for it anyway */
2720 ret = gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2721 if (ret != GST_FLOW_OK)
2725 ret = gst_qt_mux_send_extra_atoms (qtmux, TRUE, NULL, FALSE);
2726 if (ret != GST_FLOW_OK)
2729 switch (qtmux->mux_mode) {
2730 case GST_QT_MUX_MODE_MOOV_AT_END:
2732 /* mdat needs update iff not using faststart */
2733 GST_DEBUG_OBJECT (qtmux, "updating mdat size");
2734 ret = gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2735 qtmux->mdat_size, NULL, FALSE);
2736 /* note; no seeking back to the end of file is done,
2737 * since we no longer write anything anyway */
2740 case GST_QT_MUX_MODE_FAST_START:
2742 /* send mdat atom and move buffered data into it */
2743 /* mdat_size = accumulated (buffered data) */
2744 ret = gst_qt_mux_send_mdat_header (qtmux, NULL, qtmux->mdat_size,
2746 if (ret != GST_FLOW_OK)
2748 ret = gst_qt_mux_send_buffered_data (qtmux, NULL);
2749 if (ret != GST_FLOW_OK)
2754 g_assert_not_reached ();
2762 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
2763 ("Failed to serialize moov"));
2764 return GST_FLOW_ERROR;
2768 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Failed to send ftyp"));
2769 return GST_FLOW_ERROR;
2773 static GstFlowReturn
2774 gst_qt_mux_pad_fragment_add_buffer (GstQTMux * qtmux, GstQTPad * pad,
2775 GstBuffer * buf, gboolean force, guint32 nsamples, gint64 dts,
2776 guint32 delta, guint32 size, gboolean sync, gint64 pts_offset)
2778 GstFlowReturn ret = GST_FLOW_OK;
2780 /* setup if needed */
2781 if (G_UNLIKELY (!pad->traf || force))
2785 /* flush pad fragment if threshold reached,
2786 * or at new keyframe if we should be minding those in the first place */
2787 if (G_UNLIKELY (force || (sync && pad->sync) ||
2788 pad->fragment_duration < (gint64) delta)) {
2790 guint64 size = 0, offset = 0;
2791 guint8 *data = NULL;
2793 guint i, total_size;
2795 /* now we know where moof ends up, update offset in tfra */
2797 atom_tfra_update_offset (pad->tfra, qtmux->header_size);
2799 moof = atom_moof_new (qtmux->context, qtmux->fragment_sequence);
2800 /* takes ownership */
2801 atom_moof_add_traf (moof, pad->traf);
2803 atom_moof_copy_data (moof, &data, &size, &offset);
2804 buffer = _gst_buffer_new_take_data (data, offset);
2805 GST_LOG_OBJECT (qtmux, "writing moof size %" G_GSIZE_FORMAT,
2806 gst_buffer_get_size (buffer));
2807 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->header_size, FALSE);
2809 /* and actual data */
2811 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2813 gst_buffer_get_size (atom_array_index (&pad->fragment_buffers, i));
2816 GST_LOG_OBJECT (qtmux, "writing %d buffers, total_size %d",
2817 atom_array_get_len (&pad->fragment_buffers), total_size);
2818 if (ret == GST_FLOW_OK)
2819 ret = gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, total_size,
2821 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2822 if (G_LIKELY (ret == GST_FLOW_OK))
2823 ret = gst_qt_mux_send_buffer (qtmux,
2824 atom_array_index (&pad->fragment_buffers, i), &qtmux->header_size,
2827 gst_buffer_unref (atom_array_index (&pad->fragment_buffers, i));
2830 atom_array_clear (&pad->fragment_buffers);
2831 atom_moof_free (moof);
2832 qtmux->fragment_sequence++;
2837 if (G_UNLIKELY (!pad->traf)) {
2838 GST_LOG_OBJECT (qtmux, "setting up new fragment");
2839 pad->traf = atom_traf_new (qtmux->context, atom_trak_get_id (pad->trak));
2840 atom_array_init (&pad->fragment_buffers, 512);
2841 pad->fragment_duration = gst_util_uint64_scale (qtmux->fragment_duration,
2842 atom_trak_get_timescale (pad->trak), 1000);
2844 if (G_UNLIKELY (qtmux->mfra && !pad->tfra)) {
2845 pad->tfra = atom_tfra_new (qtmux->context, atom_trak_get_id (pad->trak));
2846 atom_mfra_add_tfra (qtmux->mfra, pad->tfra);
2848 atom_traf_set_base_decode_time (pad->traf, dts);
2851 /* add buffer and metadata */
2852 atom_traf_add_samples (pad->traf, delta, size, sync, pts_offset,
2854 atom_array_append (&pad->fragment_buffers, buf, 256);
2855 pad->fragment_duration -= delta;
2858 guint32 sn = atom_traf_get_sample_num (pad->traf);
2860 if ((sync && pad->sync) || (sn == 1 && !pad->sync))
2861 atom_tfra_add_entry (pad->tfra, dts, sn);
2864 if (G_UNLIKELY (force))
2870 /* Here's the clever bit of robust recording: Updating the moov
2871 * header is done using a ping-pong scheme inside 2 blocks of size
2872 * 'reserved_moov_size' at the start of the file, in such a way that the
2873 * file on-disk is always valid if interrupted.
2874 * Inside the reserved space, we have 2 pairs of free + moov atoms
2875 * (in that order), free-A + moov-A @ offset 0 and free-B + moov-B at
2876 * at offset "reserved_moov_size".
2878 * 1. Free-A has 0 size payload, moov-A immediately after is
2879 * active/current, and is padded with an internal Free atom to
2880 * end at reserved_space/2. Free-B is at reserved_space/2, sized
2881 * to cover the remaining free space (including moov-B).
2882 * 2. We write moov-B (which is invisible inside free-B), and pad it to
2883 * end at the end of free space. Then, we update free-A to size
2884 * reserved_space/2 + sizeof(free-B), which hides moov-A and the
2885 * free-B header, and makes moov-B active.
2886 * 3. Rewrite moov-A inside free-A, with padding out to free-B.
2887 * Change the size of free-A to make moov-A active again.
2888 * 4. Rinse and repeat.
2891 static GstFlowReturn
2892 gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux)
2896 guint64 freeA_offset;
2897 guint32 new_freeA_size;
2898 guint64 new_moov_offset;
2900 /* Update moov info, then seek and rewrite the MOOV atom */
2901 gst_qt_mux_update_global_statistics (qtmux);
2902 gst_qt_mux_configure_moov (qtmux);
2904 gst_qt_mux_update_edit_lists (qtmux);
2906 /* tags into file metadata */
2907 gst_qt_mux_setup_metadata (qtmux);
2909 /* chunks position is set relative to the first byte of the
2910 * MDAT atom payload. Set the overall offset into the file */
2911 atom_moov_chunks_set_offset (qtmux->moov, qtmux->header_size);
2913 /* Calculate which moov to rewrite. qtmux->moov_pos points to
2914 * the start of the free-A header */
2915 freeA_offset = qtmux->moov_pos;
2916 if (qtmux->reserved_moov_first_active) {
2917 GST_DEBUG_OBJECT (qtmux, "Updating pong moov header");
2918 /* After this, freeA will include itself, moovA, plus the freeB
2920 new_freeA_size = qtmux->reserved_moov_size + 16;
2922 GST_DEBUG_OBJECT (qtmux, "Updating ping moov header");
2925 /* the moov we update is after free-A, calculate its offset */
2926 new_moov_offset = freeA_offset + new_freeA_size;
2928 /* Swap ping-pong cadence marker */
2929 qtmux->reserved_moov_first_active = !qtmux->reserved_moov_first_active;
2931 /* seek and rewrite the MOOV atom */
2932 gst_segment_init (&segment, GST_FORMAT_BYTES);
2933 segment.start = new_moov_offset;
2934 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2937 gst_qt_mux_send_moov (qtmux, NULL, qtmux->reserved_moov_size, FALSE,
2939 if (ret != GST_FLOW_OK)
2942 /* Update the estimated recording space remaining, based on amount used so
2943 * far and duration muxed so far */
2944 if (qtmux->last_moov_size > qtmux->base_moov_size && qtmux->last_dts > 0) {
2945 GstClockTime remain;
2946 GstClockTime time_muxed = qtmux->last_dts;
2949 gst_util_uint64_scale (qtmux->reserved_moov_size -
2950 qtmux->last_moov_size, time_muxed,
2951 qtmux->last_moov_size - qtmux->base_moov_size);
2952 /* Always under-estimate slightly, so users
2953 * have time to stop muxing before we run out */
2954 if (remain < GST_SECOND / 2)
2957 remain -= GST_SECOND / 2;
2959 GST_INFO_OBJECT (qtmux,
2960 "Reserved %u header bytes. Used %u in %" GST_TIME_FORMAT
2961 ". Remaining now %u or approx %" G_GUINT64_FORMAT " ns\n",
2962 qtmux->reserved_moov_size, qtmux->last_moov_size,
2963 GST_TIME_ARGS (qtmux->last_dts),
2964 qtmux->reserved_moov_size - qtmux->last_moov_size, remain);
2966 GST_OBJECT_LOCK (qtmux);
2967 qtmux->reserved_duration_remaining = remain;
2968 qtmux->muxed_since_last_update = 0;
2969 GST_DEBUG_OBJECT (qtmux, "reserved remaining duration now %"
2970 G_GUINT64_FORMAT, qtmux->reserved_duration_remaining);
2971 GST_OBJECT_UNLOCK (qtmux);
2975 /* Now update the moov-A size. Don't pass offset, since we don't need
2976 * send_free_atom() to seek for us - all our callers seek back to
2977 * where they need after this, or they don't need it */
2978 gst_segment_init (&segment, GST_FORMAT_BYTES);
2979 segment.start = freeA_offset;
2980 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2982 ret = gst_qt_mux_send_free_atom (qtmux, NULL, new_freeA_size, TRUE);
2987 static GstFlowReturn
2988 gst_qt_mux_robust_recording_update (GstQTMux * qtmux, GstClockTime position)
2991 GstFlowReturn flow_ret;
2993 guint64 mdat_offset = qtmux->mdat_pos + 16 + qtmux->mdat_size;
2995 GST_OBJECT_LOCK (qtmux);
2996 if (qtmux->reserved_moov_update_period == GST_CLOCK_TIME_NONE) {
2997 GST_OBJECT_UNLOCK (qtmux);
3001 /* Update if position is > the threshold or there's been no update yet */
3002 if (qtmux->last_moov_update != GST_CLOCK_TIME_NONE &&
3003 (position <= qtmux->last_moov_update ||
3004 (position - qtmux->last_moov_update) <
3005 qtmux->reserved_moov_update_period)) {
3006 /* Update the offset of how much we've muxed, so the
3007 * report of remaining space keeps counting down */
3008 if (position > qtmux->last_moov_update &&
3009 position - qtmux->last_moov_update > qtmux->muxed_since_last_update) {
3010 GST_LOG_OBJECT (qtmux,
3011 "Muxed time %" G_GUINT64_FORMAT " since last moov update",
3012 qtmux->muxed_since_last_update);
3013 qtmux->muxed_since_last_update = position - qtmux->last_moov_update;
3015 GST_OBJECT_UNLOCK (qtmux);
3016 return GST_FLOW_OK; /* No update needed yet */
3019 qtmux->last_moov_update = position;
3020 GST_OBJECT_UNLOCK (qtmux);
3022 GST_DEBUG_OBJECT (qtmux, "Update moov atom, position %" GST_TIME_FORMAT
3023 " mdat starts @ %" G_GUINT64_FORMAT " we were a %" G_GUINT64_FORMAT,
3024 GST_TIME_ARGS (position), qtmux->mdat_pos, mdat_offset);
3026 flow_ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
3027 if (G_UNLIKELY (flow_ret != GST_FLOW_OK))
3030 /* Seek back to previous position */
3031 gst_segment_init (&segment, GST_FORMAT_BYTES);
3032 segment.start = mdat_offset;
3033 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3038 static GstFlowReturn
3039 gst_qt_mux_register_and_push_sample (GstQTMux * qtmux, GstQTPad * pad,
3040 GstBuffer * buffer, gboolean is_last_buffer, guint nsamples,
3041 gint64 last_dts, gint64 scaled_duration, guint sample_size,
3042 guint64 chunk_offset, gboolean sync, gboolean do_pts, gint64 pts_offset)
3044 GstFlowReturn ret = GST_FLOW_OK;
3046 /* note that a new chunk is started each time (not fancy but works) */
3047 if (qtmux->moov_recov_file) {
3048 if (!atoms_recov_write_trak_samples (qtmux->moov_recov_file, pad->trak,
3049 nsamples, (gint32) scaled_duration, sample_size, chunk_offset, sync,
3050 do_pts, pts_offset)) {
3051 GST_WARNING_OBJECT (qtmux, "Failed to write sample information to "
3052 "recovery file, disabling recovery");
3053 fclose (qtmux->moov_recov_file);
3054 qtmux->moov_recov_file = NULL;
3058 switch (qtmux->mux_mode) {
3059 case GST_QT_MUX_MODE_MOOV_AT_END:
3060 case GST_QT_MUX_MODE_FAST_START:
3061 case GST_QT_MUX_MODE_ROBUST_RECORDING:
3062 atom_trak_add_samples (pad->trak, nsamples, (gint32) scaled_duration,
3063 sample_size, chunk_offset, sync, pts_offset);
3064 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->mdat_size, TRUE);
3065 /* Check if it's time to re-write the headers in robust-recording mode */
3066 if (ret == GST_FLOW_OK
3067 && qtmux->mux_mode == GST_QT_MUX_MODE_ROBUST_RECORDING)
3068 ret = gst_qt_mux_robust_recording_update (qtmux, pad->total_duration);
3070 case GST_QT_MUX_MODE_FRAGMENTED:
3071 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
3072 /* ensure that always sync samples are marked as such */
3073 ret = gst_qt_mux_pad_fragment_add_buffer (qtmux, pad, buffer,
3074 is_last_buffer, nsamples, last_dts, (gint32) scaled_duration,
3075 sample_size, !pad->sync || sync, pts_offset);
3082 static GstFlowReturn
3083 gst_qt_mux_check_and_update_timecode (GstQTMux * qtmux, GstQTPad * pad,
3084 GstBuffer * buf, GstFlowReturn ret)
3086 if (buf != NULL && (pad->tc_trak == NULL || qtmux->tc_pos != -1)) {
3087 GstVideoTimeCodeMeta *tc_meta = gst_buffer_get_video_time_code_meta (buf);
3089 GstVideoTimeCode *tc = &tc_meta->tc;
3092 guint32 frames_since_daily_jam;
3094 /* This means we never got a timecode before */
3095 if (qtmux->first_tc == NULL) {
3096 #ifndef GST_DISABLE_GST_DEBUG
3097 gchar *tc_str = gst_video_time_code_to_string (tc);
3098 GST_DEBUG_OBJECT (qtmux, "Found first timecode %s", tc_str);
3101 g_assert (pad->tc_trak == NULL);
3102 tc_buf = gst_buffer_new_allocate (NULL, 4, NULL);
3103 qtmux->first_tc = gst_video_time_code_copy (tc);
3104 /* If frames are out of order, the frame we're currently getting might
3105 * not be the first one. Just write a 0 timecode for now and wait
3106 * until we receive a timecode that's lower than the current one */
3107 if (pad->is_out_of_order) {
3108 qtmux->first_pts = GST_BUFFER_PTS (buf);
3109 frames_since_daily_jam = 0;
3110 /* Position to rewrite */
3111 qtmux->tc_pos = qtmux->mdat_size;
3113 frames_since_daily_jam =
3114 gst_video_time_code_frames_since_daily_jam (qtmux->first_tc);
3115 frames_since_daily_jam = GUINT32_TO_BE (frames_since_daily_jam);
3117 /* Write the timecode trak now */
3118 pad->tc_trak = atom_trak_new (qtmux->context);
3119 atom_moov_add_trak (qtmux->moov, pad->tc_trak);
3121 pad->trak->tref = atom_tref_new (FOURCC_tmcd);
3122 atom_tref_add_entry (pad->trak->tref, pad->tc_trak->tkhd.track_ID);
3124 atom_trak_set_timecode_type (pad->tc_trak, qtmux->context,
3127 szret = gst_buffer_fill (tc_buf, 0, &frames_since_daily_jam, 4);
3128 g_assert (szret == 4);
3130 atom_trak_add_samples (pad->tc_trak, 1, 1, 4, qtmux->mdat_size, FALSE,
3132 ret = gst_qt_mux_send_buffer (qtmux, tc_buf, &qtmux->mdat_size, TRUE);
3133 } else if (pad->is_out_of_order) {
3134 /* Check for a lower timecode than the one stored */
3135 g_assert (pad->tc_trak != NULL);
3136 if (GST_BUFFER_DTS (buf) <= qtmux->first_pts) {
3137 if (gst_video_time_code_compare (tc, qtmux->first_tc) == -1) {
3138 gst_video_time_code_free (qtmux->first_tc);
3139 qtmux->first_tc = gst_video_time_code_copy (tc);
3142 guint64 bk_size = qtmux->mdat_size;
3144 /* If this frame's DTS is after the first PTS received, it means
3145 * we've already received the first frame to be presented. Otherwise
3146 * the decoder would need to go back in time */
3147 gst_qt_mux_update_timecode (qtmux);
3149 /* Reset writing position */
3150 gst_segment_init (&segment, GST_FORMAT_BYTES);
3151 segment.start = bk_size;
3152 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3161 * Here we push the buffer and update the tables in the track atoms
3163 static GstFlowReturn
3164 gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad, GstBuffer * buf)
3166 GstBuffer *last_buf = NULL;
3167 GstClockTime duration;
3168 guint nsamples, sample_size;
3169 guint64 chunk_offset;
3170 gint64 last_dts, scaled_duration;
3171 gint64 pts_offset = 0;
3172 gboolean sync = FALSE;
3173 GstFlowReturn ret = GST_FLOW_OK;
3176 goto not_negotiated;
3178 /* if this pad has a prepare function, call it */
3179 if (pad->prepare_buf_func != NULL) {
3180 buf = pad->prepare_buf_func (pad, buf, qtmux);
3183 last_buf = pad->last_buf;
3185 ret = gst_qt_mux_check_and_update_timecode (qtmux, pad, buf, ret);
3187 if (last_buf == NULL) {
3188 #ifndef GST_DISABLE_GST_DEBUG
3190 GST_DEBUG_OBJECT (qtmux, "Pad %s has no previous buffer stored and "
3191 "received NULL buffer, doing nothing",
3192 GST_PAD_NAME (pad->collect.pad));
3194 GST_LOG_OBJECT (qtmux,
3195 "Pad %s has no previous buffer stored, storing now",
3196 GST_PAD_NAME (pad->collect.pad));
3199 pad->last_buf = buf;
3202 gst_buffer_ref (last_buf);
3205 if (!GST_BUFFER_PTS_IS_VALID (last_buf))
3208 /* if this is the first buffer, store the timestamp */
3209 if (G_UNLIKELY (pad->first_ts == GST_CLOCK_TIME_NONE) && last_buf) {
3210 if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3211 pad->first_ts = GST_BUFFER_PTS (last_buf);
3212 } else if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3213 pad->first_ts = GST_BUFFER_DTS (last_buf);
3216 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3217 pad->first_dts = pad->last_dts = GST_BUFFER_DTS (last_buf);
3218 } else if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3219 pad->first_dts = pad->last_dts = GST_BUFFER_PTS (last_buf);
3222 if (GST_CLOCK_TIME_IS_VALID (pad->first_ts)) {
3223 GST_DEBUG ("setting first_ts to %" G_GUINT64_FORMAT, pad->first_ts);
3225 GST_WARNING_OBJECT (qtmux, "First buffer for pad %s has no timestamp, "
3226 "using 0 as first timestamp", GST_PAD_NAME (pad->collect.pad));
3227 pad->first_ts = pad->first_dts = 0;
3229 GST_DEBUG_OBJECT (qtmux, "Stored first timestamp for pad %s %"
3230 GST_TIME_FORMAT, GST_PAD_NAME (pad->collect.pad),
3231 GST_TIME_ARGS (pad->first_ts));
3234 if (last_buf && buf && GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (buf)) &&
3235 GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (last_buf)) &&
3236 GST_BUFFER_DTS (buf) < GST_BUFFER_DTS (last_buf)) {
3237 GST_ERROR ("decreasing DTS value %" GST_TIME_FORMAT " < %" GST_TIME_FORMAT,
3238 GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
3239 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)));
3240 buf = gst_buffer_make_writable (buf);
3241 GST_BUFFER_DTS (buf) = GST_BUFFER_DTS (last_buf);
3244 /* duration actually means time delta between samples, so we calculate
3245 * the duration based on the difference in DTS or PTS, falling back
3246 * to DURATION if the other two don't exist, such as with the last
3247 * sample before EOS. Or use 0 if nothing else is available */
3248 if (GST_BUFFER_DURATION_IS_VALID (last_buf))
3249 duration = GST_BUFFER_DURATION (last_buf);
3253 if (last_buf && buf && GST_BUFFER_DTS_IS_VALID (buf)
3254 && GST_BUFFER_DTS_IS_VALID (last_buf))
3255 duration = GST_BUFFER_DTS (buf) - GST_BUFFER_DTS (last_buf);
3256 else if (last_buf && buf && GST_BUFFER_PTS_IS_VALID (buf)
3257 && GST_BUFFER_PTS_IS_VALID (last_buf))
3258 duration = GST_BUFFER_PTS (buf) - GST_BUFFER_PTS (last_buf);
3261 gst_buffer_replace (&pad->last_buf, buf);
3263 if (qtmux->current_pad != pad || qtmux->current_chunk_offset == -1) {
3264 GST_DEBUG_OBJECT (qtmux,
3265 "Switching to next chunk for pad %s:%s: offset %" G_GUINT64_FORMAT
3266 ", size %" G_GUINT64_FORMAT ", duration %" GST_TIME_FORMAT,
3267 GST_DEBUG_PAD_NAME (pad->collect.pad), qtmux->current_chunk_offset,
3268 qtmux->current_chunk_size,
3269 GST_TIME_ARGS (qtmux->current_chunk_duration));
3270 qtmux->current_pad = pad;
3271 if (qtmux->current_chunk_offset == -1)
3272 qtmux->current_chunk_offset = qtmux->mdat_size;
3274 qtmux->current_chunk_offset += qtmux->current_chunk_size;
3275 qtmux->current_chunk_size = 0;
3276 qtmux->current_chunk_duration = 0;
3279 last_dts = gst_util_uint64_scale_round (pad->last_dts,
3280 atom_trak_get_timescale (pad->trak), GST_SECOND);
3282 /* fragments only deal with 1 buffer == 1 chunk (== 1 sample) */
3283 if (pad->sample_size && !qtmux->fragment_sequence) {
3284 /* Constant size packets: usually raw audio (with many samples per
3285 buffer (= chunk)), but can also be fixed-packet-size codecs like ADPCM
3287 sample_size = pad->sample_size;
3288 if (gst_buffer_get_size (last_buf) % sample_size != 0)
3289 goto fragmented_sample;
3290 /* note: qt raw audio storage warps it implicitly into a timewise
3291 * perfect stream, discarding buffer times */
3292 if (GST_BUFFER_DURATION (last_buf) != GST_CLOCK_TIME_NONE) {
3293 nsamples = gst_util_uint64_scale_round (GST_BUFFER_DURATION (last_buf),
3294 atom_trak_get_timescale (pad->trak), GST_SECOND);
3295 duration = GST_BUFFER_DURATION (last_buf);
3297 nsamples = gst_buffer_get_size (last_buf) / sample_size;
3299 gst_util_uint64_scale_round (nsamples, GST_SECOND,
3300 atom_trak_get_timescale (pad->trak));
3303 /* timescale = samplerate */
3304 scaled_duration = 1;
3305 pad->last_dts += duration * nsamples;
3308 sample_size = gst_buffer_get_size (last_buf);
3309 if ((buf && GST_BUFFER_DTS_IS_VALID (buf))
3310 || GST_BUFFER_DTS_IS_VALID (last_buf)) {
3312 if (buf && GST_BUFFER_DTS_IS_VALID (buf)) {
3313 pad->last_dts = GST_BUFFER_DTS (buf);
3315 pad->last_dts = GST_BUFFER_DTS (last_buf) + duration;
3317 if ((gint64) (pad->last_dts) < 0) {
3318 scaled_dts = -gst_util_uint64_scale_round (-pad->last_dts,
3319 atom_trak_get_timescale (pad->trak), GST_SECOND);
3321 scaled_dts = gst_util_uint64_scale_round (pad->last_dts,
3322 atom_trak_get_timescale (pad->trak), GST_SECOND);
3324 scaled_duration = scaled_dts - last_dts;
3325 last_dts = scaled_dts;
3327 /* first convert intended timestamp (in GstClockTime resolution) to
3328 * trak timescale, then derive delta;
3329 * this ensures sums of (scale)delta add up to converted timestamp,
3330 * which only deviates at most 1/scale from timestamp itself */
3331 scaled_duration = gst_util_uint64_scale_round (pad->last_dts + duration,
3332 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts;
3333 pad->last_dts += duration;
3337 /* for computing the avg bitrate */
3338 if (G_LIKELY (last_buf)) {
3339 pad->total_bytes += gst_buffer_get_size (last_buf);
3340 pad->total_duration += duration;
3342 qtmux->current_chunk_size += gst_buffer_get_size (last_buf);
3343 qtmux->current_chunk_duration += duration;
3345 chunk_offset = qtmux->current_chunk_offset;
3347 GST_LOG_OBJECT (qtmux,
3348 "Pad (%s) dts updated to %" GST_TIME_FORMAT,
3349 GST_PAD_NAME (pad->collect.pad), GST_TIME_ARGS (pad->last_dts));
3350 GST_LOG_OBJECT (qtmux,
3351 "Adding %d samples to track, duration: %" G_GUINT64_FORMAT
3352 " size: %" G_GUINT32_FORMAT " chunk offset: %" G_GUINT64_FORMAT,
3353 nsamples, scaled_duration, sample_size, chunk_offset);
3355 /* might be a sync sample */
3357 !GST_BUFFER_FLAG_IS_SET (last_buf, GST_BUFFER_FLAG_DELTA_UNIT)) {
3358 GST_LOG_OBJECT (qtmux, "Adding new sync sample entry for track of pad %s",
3359 GST_PAD_NAME (pad->collect.pad));
3363 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3364 last_dts = gst_util_uint64_scale_round (GST_BUFFER_DTS (last_buf),
3365 atom_trak_get_timescale (pad->trak), GST_SECOND);
3367 (gint64) (gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3368 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts);
3371 last_dts = gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3372 atom_trak_get_timescale (pad->trak), GST_SECOND);
3374 GST_DEBUG ("dts: %" GST_TIME_FORMAT " pts: %" GST_TIME_FORMAT
3375 " timebase_dts: %d pts_offset: %d",
3376 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)),
3377 GST_TIME_ARGS (GST_BUFFER_PTS (last_buf)),
3378 (int) (last_dts), (int) (pts_offset));
3380 if (GST_CLOCK_TIME_IS_VALID (duration)
3381 && (qtmux->current_chunk_duration > qtmux->longest_chunk
3382 || !GST_CLOCK_TIME_IS_VALID (qtmux->longest_chunk))) {
3383 GST_DEBUG_OBJECT (qtmux,
3384 "New longest chunk found: %" GST_TIME_FORMAT ", pad %s",
3385 GST_TIME_ARGS (qtmux->current_chunk_duration),
3386 GST_PAD_NAME (pad->collect.pad));
3387 qtmux->longest_chunk = qtmux->current_chunk_duration;
3390 /* now we go and register this buffer/sample all over */
3391 ret = gst_qt_mux_register_and_push_sample (qtmux, pad, last_buf,
3392 buf == NULL, nsamples, last_dts, scaled_duration, sample_size,
3393 chunk_offset, sync, TRUE, pts_offset);
3395 /* if this is sparse and we have a next buffer, check if there is any gap
3396 * between them to insert an empty sample */
3397 if (pad->sparse && buf) {
3398 if (pad->create_empty_buffer) {
3399 GstBuffer *empty_buf;
3400 gint64 empty_duration =
3401 GST_BUFFER_PTS (buf) - (GST_BUFFER_PTS (last_buf) + duration);
3402 gint64 empty_duration_scaled;
3404 empty_buf = pad->create_empty_buffer (pad, empty_duration);
3406 empty_duration_scaled = gst_util_uint64_scale_round (empty_duration,
3407 atom_trak_get_timescale (pad->trak), GST_SECOND);
3409 pad->total_bytes += gst_buffer_get_size (empty_buf);
3410 pad->total_duration += duration;
3413 gst_qt_mux_register_and_push_sample (qtmux, pad, empty_buf, FALSE, 1,
3414 last_dts + scaled_duration, empty_duration_scaled,
3415 gst_buffer_get_size (empty_buf), chunk_offset, sync, TRUE, 0);
3417 /* our only case currently is tx3g subtitles, so there is no reason to fill this yet */
3418 g_assert_not_reached ();
3419 GST_WARNING_OBJECT (qtmux,
3420 "no empty buffer creation function found for pad %s",
3421 GST_PAD_NAME (pad->collect.pad));
3426 gst_buffer_unref (buf);
3436 gst_buffer_unref (buf);
3437 gst_buffer_unref (last_buf);
3438 return GST_FLOW_ERROR;
3442 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
3443 ("Audio buffer contains fragmented sample."));
3448 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Buffer has no PTS."));
3453 GST_ELEMENT_ERROR (qtmux, CORE, NEGOTIATION, (NULL),
3454 ("format wasn't negotiated before buffer flow on pad %s",
3455 GST_PAD_NAME (pad->collect.pad)));
3457 gst_buffer_unref (buf);
3458 return GST_FLOW_NOT_NEGOTIATED;
3463 * DTS running time can be negative. There is no way to represent that in
3464 * MP4 however, thus we need to offset DTS so that it starts from 0.
3467 gst_qt_pad_adjust_buffer_dts (GstQTMux * qtmux, GstQTPad * pad,
3468 GstCollectData * cdata, GstBuffer ** buf)
3473 pts = GST_BUFFER_PTS (*buf);
3474 dts = GST_COLLECT_PADS_DTS (cdata);
3476 GST_LOG_OBJECT (qtmux, "selected pad %s with PTS %" GST_TIME_FORMAT
3477 " and DTS %" GST_STIME_FORMAT, GST_PAD_NAME (cdata->pad),
3478 GST_TIME_ARGS (pts), GST_STIME_ARGS (dts));
3480 if (!GST_CLOCK_TIME_IS_VALID (pad->dts_adjustment)) {
3481 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0)
3482 pad->dts_adjustment = -dts;
3484 pad->dts_adjustment = 0;
3487 if (pad->dts_adjustment > 0) {
3488 *buf = gst_buffer_make_writable (*buf);
3490 dts += pad->dts_adjustment;
3492 if (GST_CLOCK_TIME_IS_VALID (pts))
3493 pts += pad->dts_adjustment;
3495 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0) {
3496 GST_WARNING_OBJECT (pad, "Decreasing DTS.");
3501 GST_WARNING_OBJECT (pad, "DTS is bigger then PTS");
3505 GST_BUFFER_PTS (*buf) = pts;
3506 GST_BUFFER_DTS (*buf) = dts;
3508 GST_LOG_OBJECT (qtmux, "time adjusted to PTS %" GST_TIME_FORMAT
3509 " and DTS %" GST_TIME_FORMAT, GST_TIME_ARGS (pts), GST_TIME_ARGS (dts));
3514 find_best_pad (GstQTMux * qtmux, GstCollectPads * pads)
3517 GstQTPad *best_pad = NULL;
3519 if (qtmux->current_pad &&
3520 (qtmux->interleave_bytes != 0 || qtmux->interleave_time != 0) &&
3521 (qtmux->interleave_bytes == 0
3522 || qtmux->current_chunk_size <= qtmux->interleave_bytes)
3523 && (qtmux->interleave_time == 0
3524 || qtmux->current_chunk_duration <= qtmux->interleave_time)
3525 && qtmux->mux_mode != GST_QT_MUX_MODE_FRAGMENTED
3526 && qtmux->mux_mode != GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) {
3527 GstBuffer *tmp_buf =
3528 gst_collect_pads_peek (pads, (GstCollectData *) qtmux->current_pad);
3530 if (tmp_buf || qtmux->current_pad->last_buf) {
3531 best_pad = qtmux->current_pad;
3533 gst_buffer_unref (tmp_buf);
3534 GST_DEBUG_OBJECT (qtmux, "Reusing pad %s:%s",
3535 GST_DEBUG_PAD_NAME (best_pad->collect.pad));
3538 if (qtmux->current_pad)
3539 GST_DEBUG_OBJECT (qtmux, "Switching from pad %s:%s",
3540 GST_DEBUG_PAD_NAME (qtmux->current_pad->collect.pad));
3541 best_pad = qtmux->current_pad = NULL;
3545 GstClockTime best_time = GST_CLOCK_TIME_NONE;
3547 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
3548 GstCollectData *cdata = (GstCollectData *) walk->data;
3549 GstQTPad *qtpad = (GstQTPad *) cdata;
3551 GstClockTime timestamp;
3553 tmp_buf = gst_collect_pads_peek (pads, cdata);
3555 /* This one is newly EOS now, finish it for real */
3556 if (qtpad->last_buf) {
3557 timestamp = GST_BUFFER_DTS_OR_PTS (qtpad->last_buf);
3562 timestamp = GST_BUFFER_DTS_OR_PTS (tmp_buf);
3565 if (best_pad == NULL ||
3566 !GST_CLOCK_TIME_IS_VALID (best_time) || timestamp < best_time) {
3568 best_time = timestamp;
3572 gst_buffer_unref (tmp_buf);
3576 GST_DEBUG_OBJECT (qtmux, "Choosing pad %s:%s",
3577 GST_DEBUG_PAD_NAME (best_pad->collect.pad));
3579 GST_DEBUG_OBJECT (qtmux, "No best pad: EOS");
3586 static GstFlowReturn
3587 gst_qt_mux_collected (GstCollectPads * pads, gpointer user_data)
3589 GstFlowReturn ret = GST_FLOW_OK;
3590 GstQTMux *qtmux = GST_QT_MUX_CAST (user_data);
3591 GstQTPad *best_pad = NULL;
3593 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_STARTED)) {
3594 if ((ret = gst_qt_mux_start_file (qtmux)) != GST_FLOW_OK)
3597 qtmux->state = GST_QT_MUX_STATE_DATA;
3600 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_EOS))
3601 return GST_FLOW_EOS;
3603 best_pad = find_best_pad (qtmux, pads);
3605 /* clipping already converted to running time */
3606 if (best_pad != NULL) {
3607 GstBuffer *buf = gst_collect_pads_pop (pads, (GstCollectData *) best_pad);
3609 g_assert (buf || best_pad->last_buf);
3611 gst_qt_pad_adjust_buffer_dts (qtmux, best_pad,
3612 (GstCollectData *) best_pad, &buf);
3614 ret = gst_qt_mux_add_buffer (qtmux, best_pad, buf);
3616 qtmux->state = GST_QT_MUX_STATE_EOS;
3617 ret = gst_qt_mux_stop_file (qtmux);
3618 if (ret == GST_FLOW_OK) {
3619 GST_DEBUG_OBJECT (qtmux, "Pushing eos");
3620 gst_pad_push_event (qtmux->srcpad, gst_event_new_eos ());
3623 GST_WARNING_OBJECT (qtmux, "Failed to stop file: %s",
3624 gst_flow_get_name (ret));
3632 check_field (GQuark field_id, const GValue * value, gpointer user_data)
3634 GstStructure *structure = (GstStructure *) user_data;
3635 const GValue *other = gst_structure_id_get_value (structure, field_id);
3638 return gst_value_compare (value, other) == GST_VALUE_EQUAL;
3642 gst_qtmux_caps_is_subset_full (GstQTMux * qtmux, GstCaps * subset,
3645 GstStructure *sub_s = gst_caps_get_structure (subset, 0);
3646 GstStructure *sup_s = gst_caps_get_structure (superset, 0);
3648 return gst_structure_foreach (sub_s, check_field, sup_s);
3652 gst_qt_mux_audio_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
3654 GstPad *pad = qtpad->collect.pad;
3655 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
3656 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
3657 GstStructure *structure;
3658 const gchar *mimetype;
3659 gint rate, channels;
3660 const GValue *value = NULL;
3661 const GstBuffer *codec_data = NULL;
3662 GstQTMuxFormat format;
3663 AudioSampleEntry entry = { 0, };
3664 AtomInfo *ext_atom = NULL;
3665 gint constant_size = 0;
3666 const gchar *stream_format;
3668 qtpad->prepare_buf_func = NULL;
3670 /* does not go well to renegotiate stream mid-way, unless
3671 * the old caps are a subset of the new one (this means upstream
3672 * added more info to the caps, as both should be 'fixed' caps) */
3673 if (qtpad->fourcc) {
3674 GstCaps *current_caps;
3676 current_caps = gst_pad_get_current_caps (pad);
3677 g_assert (caps != NULL);
3679 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
3680 gst_caps_unref (current_caps);
3681 goto refuse_renegotiation;
3683 GST_DEBUG_OBJECT (qtmux,
3684 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
3685 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
3686 gst_caps_unref (current_caps);
3689 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
3690 GST_DEBUG_PAD_NAME (pad), caps);
3692 format = qtmux_klass->format;
3693 structure = gst_caps_get_structure (caps, 0);
3694 mimetype = gst_structure_get_name (structure);
3697 if (!gst_structure_get_int (structure, "channels", &channels) ||
3698 !gst_structure_get_int (structure, "rate", &rate)) {
3703 value = gst_structure_get_value (structure, "codec_data");
3705 codec_data = gst_value_get_buffer (value);
3707 qtpad->is_out_of_order = FALSE;
3709 /* set common properties */
3710 entry.sample_rate = rate;
3711 entry.channels = channels;
3713 entry.sample_size = 16;
3714 /* this is the typical compressed case */
3715 if (format == GST_QT_MUX_FORMAT_QT) {
3717 entry.compression_id = -2;
3720 /* now map onto a fourcc, and some extra properties */
3721 if (strcmp (mimetype, "audio/mpeg") == 0) {
3722 gint mpegversion = 0, mpegaudioversion = 0;
3725 gst_structure_get_int (structure, "mpegversion", &mpegversion);
3726 switch (mpegversion) {
3728 gst_structure_get_int (structure, "layer", &layer);
3729 gst_structure_get_int (structure, "mpegaudioversion",
3733 /* note: QuickTime player does not like mp3 either way in iso/mp4 */
3734 if (format == GST_QT_MUX_FORMAT_QT)
3735 entry.fourcc = FOURCC__mp3;
3737 entry.fourcc = FOURCC_mp4a;
3739 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG1_P3,
3740 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3741 qtpad->max_bitrate);
3744 g_warn_if_fail (format == GST_QT_MUX_FORMAT_MP4);
3745 entry.samples_per_packet = 384;
3746 } else if (layer == 2) {
3747 g_warn_if_fail (format == GST_QT_MUX_FORMAT_MP4);
3748 entry.samples_per_packet = 1152;
3750 g_warn_if_fail (layer == 3);
3751 entry.samples_per_packet = (mpegaudioversion <= 1) ? 1152 : 576;
3753 entry.bytes_per_sample = 2;
3757 /* check stream-format */
3758 stream_format = gst_structure_get_string (structure, "stream-format");
3759 if (stream_format) {
3760 if (strcmp (stream_format, "raw") != 0) {
3761 GST_WARNING_OBJECT (qtmux, "Unsupported AAC stream-format %s, "
3762 "please use 'raw'", stream_format);
3766 GST_WARNING_OBJECT (qtmux, "No stream-format present in caps, "
3770 if (!codec_data || gst_buffer_get_size ((GstBuffer *) codec_data) < 2) {
3771 GST_WARNING_OBJECT (qtmux, "no (valid) codec_data for AAC audio");
3776 gst_buffer_extract ((GstBuffer *) codec_data, 0, &profile, 1);
3777 /* warn if not Low Complexity profile */
3780 GST_WARNING_OBJECT (qtmux,
3781 "non-LC AAC may not run well on (Apple) QuickTime/iTunes");
3785 entry.fourcc = FOURCC_mp4a;
3787 if (format == GST_QT_MUX_FORMAT_QT)
3788 ext_atom = build_mov_aac_extension (qtpad->trak, codec_data,
3789 qtpad->avg_bitrate, qtpad->max_bitrate);
3792 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P3,
3793 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3794 qtpad->max_bitrate);
3799 } else if (strcmp (mimetype, "audio/AMR") == 0) {
3800 entry.fourcc = FOURCC_samr;
3801 entry.sample_size = 16;
3802 entry.samples_per_packet = 160;
3803 entry.bytes_per_sample = 2;
3804 ext_atom = build_amr_extension ();
3805 } else if (strcmp (mimetype, "audio/AMR-WB") == 0) {
3806 entry.fourcc = FOURCC_sawb;
3807 entry.sample_size = 16;
3808 entry.samples_per_packet = 320;
3809 entry.bytes_per_sample = 2;
3810 ext_atom = build_amr_extension ();
3811 } else if (strcmp (mimetype, "audio/x-raw") == 0) {
3814 gst_audio_info_init (&info);
3815 if (!gst_audio_info_from_caps (&info, caps))
3818 /* spec has no place for a distinction in these */
3819 if (info.finfo->width != info.finfo->depth) {
3820 GST_DEBUG_OBJECT (qtmux, "width must be same as depth!");
3824 if ((info.finfo->flags & GST_AUDIO_FORMAT_FLAG_SIGNED)) {
3825 if (info.finfo->endianness == G_LITTLE_ENDIAN)
3826 entry.fourcc = FOURCC_sowt;
3827 else if (info.finfo->endianness == G_BIG_ENDIAN)
3828 entry.fourcc = FOURCC_twos;
3830 entry.fourcc = FOURCC_sowt;
3831 /* maximum backward compatibility; only new version for > 16 bit */
3832 if (info.finfo->depth <= 16)
3834 /* not compressed in any case */
3835 entry.compression_id = 0;
3836 /* QT spec says: max at 16 bit even if sample size were actually larger,
3837 * however, most players (e.g. QuickTime!) seem to disagree, so ... */
3838 entry.sample_size = info.finfo->depth;
3839 entry.bytes_per_sample = info.finfo->depth / 8;
3840 entry.samples_per_packet = 1;
3841 entry.bytes_per_packet = info.finfo->depth / 8;
3842 entry.bytes_per_frame = entry.bytes_per_packet * info.channels;
3844 if (info.finfo->width == 8 && info.finfo->depth == 8) {
3845 /* fall back to old 8-bit version */
3846 entry.fourcc = FOURCC_raw_;
3848 entry.compression_id = 0;
3849 entry.sample_size = 8;
3851 GST_DEBUG_OBJECT (qtmux, "non 8-bit PCM must be signed");
3855 constant_size = (info.finfo->depth / 8) * info.channels;
3856 } else if (strcmp (mimetype, "audio/x-alaw") == 0) {
3857 entry.fourcc = FOURCC_alaw;
3858 entry.samples_per_packet = 1023;
3859 entry.bytes_per_sample = 2;
3860 } else if (strcmp (mimetype, "audio/x-mulaw") == 0) {
3861 entry.fourcc = FOURCC_ulaw;
3862 entry.samples_per_packet = 1023;
3863 entry.bytes_per_sample = 2;
3864 } else if (strcmp (mimetype, "audio/x-adpcm") == 0) {
3866 if (!gst_structure_get_int (structure, "block_align", &blocksize)) {
3867 GST_DEBUG_OBJECT (qtmux, "broken caps, block_align missing");
3870 /* Currently only supports WAV-style IMA ADPCM, for which the codec id is
3872 entry.fourcc = MS_WAVE_FOURCC (0x11);
3873 /* 4 byte header per channel (including one sample). 2 samples per byte
3874 remaining. Simplifying gives the following (samples per block per
3876 entry.samples_per_packet = 2 * blocksize / channels - 7;
3877 entry.bytes_per_sample = 2;
3879 entry.bytes_per_frame = blocksize;
3880 entry.bytes_per_packet = blocksize / channels;
3881 /* ADPCM has constant size packets */
3883 /* TODO: I don't really understand why this helps, but it does! Constant
3884 * size and compression_id of -2 seem to be incompatible, and other files
3885 * in the wild use this too. */
3886 entry.compression_id = -1;
3888 ext_atom = build_ima_adpcm_extension (channels, rate, blocksize);
3889 } else if (strcmp (mimetype, "audio/x-alac") == 0) {
3890 GstBuffer *codec_config;
3894 entry.fourcc = FOURCC_alac;
3895 gst_buffer_map ((GstBuffer *) codec_data, &map, GST_MAP_READ);
3896 /* let's check if codec data already comes with 'alac' atom prefix */
3897 if (!codec_data || (len = map.size) < 28) {
3898 GST_DEBUG_OBJECT (qtmux, "broken caps, codec data missing");
3899 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3902 if (GST_READ_UINT32_LE (map.data + 4) == FOURCC_alac) {
3905 gst_buffer_copy_region ((GstBuffer *) codec_data,
3906 GST_BUFFER_COPY_MEMORY, 8, len);
3908 codec_config = gst_buffer_ref ((GstBuffer *) codec_data);
3910 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3912 /* does not look good, but perhaps some trailing unneeded stuff */
3913 GST_WARNING_OBJECT (qtmux, "unexpected codec-data size, possibly broken");
3915 if (format == GST_QT_MUX_FORMAT_QT)
3916 ext_atom = build_mov_alac_extension (codec_config);
3918 ext_atom = build_codec_data_extension (FOURCC_alac, codec_config);
3919 /* set some more info */
3920 gst_buffer_map (codec_config, &map, GST_MAP_READ);
3921 entry.bytes_per_sample = 2;
3922 entry.samples_per_packet = GST_READ_UINT32_BE (map.data + 4);
3923 gst_buffer_unmap (codec_config, &map);
3924 gst_buffer_unref (codec_config);
3925 } else if (strcmp (mimetype, "audio/x-ac3") == 0) {
3926 entry.fourcc = FOURCC_ac_3;
3928 /* Fixed values according to TS 102 366 but it also mentions that
3929 * they should be ignored */
3931 entry.sample_size = 16;
3933 /* AC-3 needs an extension atom but its data can only be obtained from
3934 * the stream itself. Abuse the prepare_buf_func so we parse a frame
3935 * and get the needed data */
3936 qtpad->prepare_buf_func = gst_qt_mux_prepare_parse_ac3_frame;
3937 } else if (strcmp (mimetype, "audio/x-opus") == 0) {
3938 /* Based on the specification defined in:
3939 * https://www.opus-codec.org/docs/opus_in_isobmff.html */
3940 guint8 channels, mapping_family, stream_count, coupled_count;
3944 guint8 channel_mapping[256];
3945 const GValue *streamheader;
3946 const GValue *first_element;
3949 entry.fourcc = FOURCC_opus;
3950 entry.sample_size = 16;
3952 streamheader = gst_structure_get_value (structure, "streamheader");
3953 if (streamheader && GST_VALUE_HOLDS_ARRAY (streamheader) &&
3954 gst_value_array_get_size (streamheader) != 0) {
3955 first_element = gst_value_array_get_value (streamheader, 0);
3956 header = gst_value_get_buffer (first_element);
3957 if (!gst_codec_utils_opus_parse_header (header, &rate, &channels,
3958 &mapping_family, &stream_count, &coupled_count, channel_mapping,
3959 &pre_skip, &output_gain)) {
3960 GST_ERROR_OBJECT (qtmux, "Incomplete OpusHead");
3964 GST_WARNING_OBJECT (qtmux,
3965 "no streamheader field in caps %" GST_PTR_FORMAT, caps);
3967 if (!gst_codec_utils_opus_parse_caps (caps, &rate, &channels,
3968 &mapping_family, &stream_count, &coupled_count,
3970 GST_ERROR_OBJECT (qtmux, "Incomplete Opus caps");
3977 entry.channels = channels;
3978 ext_atom = build_opus_extension (rate, channels, mapping_family,
3979 stream_count, coupled_count, channel_mapping, pre_skip, output_gain);
3985 /* ok, set the pad info accordingly */
3986 qtpad->fourcc = entry.fourcc;
3987 qtpad->sample_size = constant_size;
3989 (SampleTableEntry *) atom_trak_set_audio_type (qtpad->trak,
3990 qtmux->context, &entry,
3991 qtmux->trak_timescale ? qtmux->trak_timescale : entry.sample_rate,
3992 ext_atom, constant_size);
3994 gst_object_unref (qtmux);
4000 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4001 GST_PAD_NAME (pad), caps);
4002 gst_object_unref (qtmux);
4005 refuse_renegotiation:
4007 GST_WARNING_OBJECT (qtmux,
4008 "pad %s refused renegotiation to %" GST_PTR_FORMAT,
4009 GST_PAD_NAME (pad), caps);
4010 gst_object_unref (qtmux);
4015 /* return number of centiframes per second */
4017 adjust_rate (gint n, gint d)
4022 if (d != 1 && d != 1001) {
4023 /* otherwise there are probably rounding errors and we should rather guess
4024 * if it's close enough to a well known framerate */
4025 gst_video_guess_framerate (gst_util_uint64_scale (d, GST_SECOND, n), &n,
4029 return gst_util_uint64_scale (n, 100, d);
4033 gst_qt_mux_video_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
4035 GstPad *pad = qtpad->collect.pad;
4036 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
4037 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
4038 GstStructure *structure;
4039 const gchar *mimetype;
4040 gint width, height, depth = -1;
4041 gint framerate_num, framerate_den;
4043 const GValue *value = NULL;
4044 const GstBuffer *codec_data = NULL;
4045 VisualSampleEntry entry = { 0, };
4046 GstQTMuxFormat format;
4047 AtomInfo *ext_atom = NULL;
4048 GList *ext_atom_list = NULL;
4049 gboolean sync = FALSE;
4050 int par_num, par_den;
4052 qtpad->prepare_buf_func = NULL;
4054 /* does not go well to renegotiate stream mid-way, unless
4055 * the old caps are a subset of the new one (this means upstream
4056 * added more info to the caps, as both should be 'fixed' caps) */
4057 if (qtpad->fourcc) {
4058 GstCaps *current_caps;
4060 current_caps = gst_pad_get_current_caps (pad);
4061 g_assert (caps != NULL);
4063 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
4064 gst_caps_unref (current_caps);
4065 goto refuse_renegotiation;
4067 GST_DEBUG_OBJECT (qtmux,
4068 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
4069 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
4070 gst_caps_unref (current_caps);
4073 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
4074 GST_DEBUG_PAD_NAME (pad), caps);
4076 format = qtmux_klass->format;
4077 structure = gst_caps_get_structure (caps, 0);
4078 mimetype = gst_structure_get_name (structure);
4080 /* required parts */
4081 if (!gst_structure_get_int (structure, "width", &width) ||
4082 !gst_structure_get_int (structure, "height", &height))
4087 /* works as a default timebase */
4088 framerate_num = 10000;
4090 gst_structure_get_fraction (structure, "framerate", &framerate_num,
4092 gst_structure_get_int (structure, "depth", &depth);
4093 value = gst_structure_get_value (structure, "codec_data");
4095 codec_data = gst_value_get_buffer (value);
4099 gst_structure_get_fraction (structure, "pixel-aspect-ratio", &par_num,
4102 qtpad->is_out_of_order = FALSE;
4104 /* bring frame numerator into a range that ensures both reasonable resolution
4105 * as well as a fair duration */
4106 rate = qtmux->trak_timescale ?
4107 qtmux->trak_timescale : adjust_rate (framerate_num, framerate_den);
4108 GST_DEBUG_OBJECT (qtmux, "Rate of video track selected: %" G_GUINT32_FORMAT,
4111 /* set common properties */
4112 entry.width = width;
4113 entry.height = height;
4114 entry.par_n = par_num;
4115 entry.par_d = par_den;
4116 /* should be OK according to qt and iso spec, override if really needed */
4117 entry.color_table_id = -1;
4118 entry.frame_count = 1;
4121 /* sync entries by default */
4124 /* now map onto a fourcc, and some extra properties */
4125 if (strcmp (mimetype, "video/x-raw") == 0) {
4126 const gchar *format;
4128 const GstVideoFormatInfo *vinfo;
4130 format = gst_structure_get_string (structure, "format");
4131 fmt = gst_video_format_from_string (format);
4132 vinfo = gst_video_format_get_info (fmt);
4135 case GST_VIDEO_FORMAT_UYVY:
4138 entry.fourcc = FOURCC_2vuy;
4139 entry.depth = depth;
4142 case GST_VIDEO_FORMAT_v210:
4145 entry.fourcc = FOURCC_v210;
4146 entry.depth = depth;
4150 if (GST_VIDEO_FORMAT_INFO_FLAGS (vinfo) & GST_VIDEO_FORMAT_FLAG_RGB) {
4151 entry.fourcc = FOURCC_raw_;
4152 entry.depth = GST_VIDEO_FORMAT_INFO_PSTRIDE (vinfo, 0) * 8;
4157 } else if (strcmp (mimetype, "video/x-h263") == 0) {
4159 if (format == GST_QT_MUX_FORMAT_QT)
4160 entry.fourcc = FOURCC_h263;
4162 entry.fourcc = FOURCC_s263;
4163 ext_atom = build_h263_extension ();
4164 if (ext_atom != NULL)
4165 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4166 } else if (strcmp (mimetype, "video/x-divx") == 0 ||
4167 strcmp (mimetype, "video/mpeg") == 0) {
4170 if (strcmp (mimetype, "video/x-divx") == 0) {
4171 gst_structure_get_int (structure, "divxversion", &version);
4172 version = version == 5 ? 1 : 0;
4174 gst_structure_get_int (structure, "mpegversion", &version);
4175 version = version == 4 ? 1 : 0;
4178 entry.fourcc = FOURCC_mp4v;
4180 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P2,
4181 ESDS_STREAM_TYPE_VISUAL, codec_data, qtpad->avg_bitrate,
4182 qtpad->max_bitrate);
4183 if (ext_atom != NULL)
4184 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4186 GST_WARNING_OBJECT (qtmux, "no codec_data for MPEG4 video; "
4187 "output might not play in Apple QuickTime (try global-headers?)");
4189 } else if (strcmp (mimetype, "video/x-h264") == 0) {
4191 GST_WARNING_OBJECT (qtmux, "no codec_data in h264 caps");
4195 entry.fourcc = FOURCC_avc1;
4197 ext_atom = build_btrt_extension (0, qtpad->avg_bitrate, qtpad->max_bitrate);
4198 if (ext_atom != NULL)
4199 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4200 ext_atom = build_codec_data_extension (FOURCC_avcC, codec_data);
4201 if (ext_atom != NULL)
4202 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4203 } else if (strcmp (mimetype, "video/x-h265") == 0) {
4204 const gchar *format;
4207 GST_WARNING_OBJECT (qtmux, "no codec_data in h265 caps");
4211 format = gst_structure_get_string (structure, "stream-format");
4212 if (strcmp (format, "hvc1") == 0)
4213 entry.fourcc = FOURCC_hvc1;
4214 else if (strcmp (format, "hev1") == 0)
4215 entry.fourcc = FOURCC_hev1;
4217 ext_atom = build_btrt_extension (0, qtpad->avg_bitrate, qtpad->max_bitrate);
4218 if (ext_atom != NULL)
4219 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4221 ext_atom = build_codec_data_extension (FOURCC_hvcC, codec_data);
4222 if (ext_atom != NULL)
4223 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4225 } else if (strcmp (mimetype, "video/x-svq") == 0) {
4227 const GstBuffer *seqh = NULL;
4228 const GValue *seqh_value;
4231 gst_structure_get_int (structure, "svqversion", &version);
4233 entry.fourcc = FOURCC_SVQ3;
4237 seqh_value = gst_structure_get_value (structure, "seqh");
4239 seqh = gst_value_get_buffer (seqh_value);
4240 ext_atom = build_SMI_atom (seqh);
4242 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4245 /* we need to add the gamma anyway because quicktime might crash
4246 * when it doesn't find it */
4247 if (!gst_structure_get_double (structure, "applied-gamma", &gamma)) {
4248 /* it seems that using 0 here makes it ignored */
4251 ext_atom = build_gama_atom (gamma);
4253 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4255 GST_WARNING_OBJECT (qtmux, "SVQ version %d not supported. Please file "
4256 "a bug at http://bugzilla.gnome.org", version);
4258 } else if (strcmp (mimetype, "video/x-dv") == 0) {
4260 gboolean pal = TRUE;
4263 if (framerate_num != 25 || framerate_den != 1)
4265 gst_structure_get_int (structure, "dvversion", &version);
4266 /* fall back to typical one */
4272 entry.fourcc = FOURCC_dvcp;
4274 entry.fourcc = FOURCC_dvc_;
4278 entry.fourcc = FOURCC_dv5p;
4280 entry.fourcc = FOURCC_dv5n;
4283 GST_WARNING_OBJECT (qtmux, "unrecognized dv version");
4286 } else if (strcmp (mimetype, "image/jpeg") == 0) {
4287 entry.fourcc = FOURCC_jpeg;
4289 } else if (strcmp (mimetype, "image/x-j2c") == 0 ||
4290 strcmp (mimetype, "image/x-jpc") == 0) {
4291 const gchar *colorspace;
4292 const GValue *cmap_array;
4293 const GValue *cdef_array;
4296 if (strcmp (mimetype, "image/x-jpc") == 0) {
4297 qtpad->prepare_buf_func = gst_qt_mux_prepare_jpc_buffer;
4300 gst_structure_get_int (structure, "num-components", &ncomp);
4301 cmap_array = gst_structure_get_value (structure, "component-map");
4302 cdef_array = gst_structure_get_value (structure, "channel-definitions");
4305 entry.fourcc = FOURCC_mjp2;
4308 colorspace = gst_structure_get_string (structure, "colorspace");
4311 build_jp2h_extension (width, height, colorspace, ncomp, cmap_array,
4312 cdef_array)) != NULL) {
4313 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4315 ext_atom = build_jp2x_extension (codec_data);
4317 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4319 GST_DEBUG_OBJECT (qtmux, "missing or invalid fourcc in jp2 caps");
4322 } else if (strcmp (mimetype, "video/x-vp8") == 0) {
4323 entry.fourcc = FOURCC_VP80;
4325 } else if (strcmp (mimetype, "video/x-dirac") == 0) {
4326 entry.fourcc = FOURCC_drac;
4327 } else if (strcmp (mimetype, "video/x-qt-part") == 0) {
4330 gst_structure_get_uint (structure, "format", &fourcc);
4331 entry.fourcc = fourcc;
4332 } else if (strcmp (mimetype, "video/x-mp4-part") == 0) {
4335 gst_structure_get_uint (structure, "format", &fourcc);
4336 entry.fourcc = fourcc;
4337 } else if (strcmp (mimetype, "video/x-prores") == 0) {
4338 const gchar *variant;
4340 variant = gst_structure_get_string (structure, "variant");
4341 if (!variant || !g_strcmp0 (variant, "standard"))
4342 entry.fourcc = FOURCC_apcn;
4343 else if (!g_strcmp0 (variant, "lt"))
4344 entry.fourcc = FOURCC_apcs;
4345 else if (!g_strcmp0 (variant, "hq"))
4346 entry.fourcc = FOURCC_apch;
4347 else if (!g_strcmp0 (variant, "proxy"))
4348 entry.fourcc = FOURCC_apco;
4349 else if (!g_strcmp0 (variant, "4444"))
4350 entry.fourcc = FOURCC_ap4h;
4351 else if (!g_strcmp0 (variant, "4444xq"))
4352 entry.fourcc = FOURCC_ap4x;
4356 if (!qtmux->interleave_time_set)
4357 qtmux->interleave_time = 500 * GST_MSECOND;
4358 if (!qtmux->interleave_bytes_set)
4359 qtmux->interleave_bytes = width > 720 ? 4 * 1024 * 1024 : 2 * 1024 * 1024;
4365 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT ||
4366 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) {
4368 GstVideoColorimetry colorimetry;
4370 s = gst_structure_get_string (structure, "colorimetry");
4371 if (s && gst_video_colorimetry_from_string (&colorimetry, s)) {
4373 build_colr_extension (&colorimetry,
4374 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4);
4376 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4380 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT
4381 || strcmp (mimetype, "image/x-j2c") == 0
4382 || strcmp (mimetype, "image/x-jpc") == 0) {
4384 GstVideoInterlaceMode interlace_mode;
4385 GstVideoFieldOrder field_order;
4388 if (strcmp (mimetype, "image/x-j2c") == 0 ||
4389 strcmp (mimetype, "image/x-jpc") == 0) {
4392 gst_structure_get_int (structure, "fields", &fields);
4395 s = gst_structure_get_string (structure, "interlace-mode");
4397 interlace_mode = gst_video_interlace_mode_from_string (s);
4401 1) ? GST_VIDEO_INTERLACE_MODE_PROGRESSIVE :
4402 GST_VIDEO_INTERLACE_MODE_MIXED;
4404 field_order = GST_VIDEO_FIELD_ORDER_UNKNOWN;
4405 if (interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED) {
4406 s = gst_structure_get_string (structure, "field-order");
4408 field_order = gst_video_field_order_from_string (s);
4411 ext_atom = build_fiel_extension (interlace_mode, field_order);
4413 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4417 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT &&
4418 width > 640 && width <= 1052 && height >= 480 && height <= 576) {
4419 /* The 'clap' extension is also defined for MP4 but inventing values in
4420 * general seems a bit tricky for this one. We only write it for
4421 * SD resolution in MOV, where it is a requirement.
4422 * The same goes for the 'tapt' extension, just that it is not defined for
4423 * MP4 and only for MOV
4425 gint dar_num, dar_den;
4426 gint clef_width, clef_height, prof_width;
4427 gint clap_width_n, clap_width_d, clap_height;
4431 /* First, guess display aspect ratio based on pixel aspect ratio,
4432 * width and height. We assume that display aspect ratio is either
4435 approx_dar = (gdouble) (width * par_num) / (height * par_den);
4436 if (approx_dar > 11.0 / 9 && approx_dar < 14.0 / 9) {
4439 } else if (approx_dar > 15.0 / 9 && approx_dar < 18.0 / 9) {
4443 dar_num = width * par_num;
4444 dar_den = height * par_den;
4445 cdiv = gst_util_greatest_common_divisor (dar_num, dar_den);
4450 /* Then, calculate clean-aperture values (clap and clef)
4451 * using the guessed DAR.
4453 clef_height = clap_height = (height == 486 ? 480 : height);
4454 clef_width = gst_util_uint64_scale (clef_height,
4455 dar_num * G_GUINT64_CONSTANT (65536), dar_den);
4456 prof_width = gst_util_uint64_scale (width,
4457 par_num * G_GUINT64_CONSTANT (65536), par_den);
4458 clap_width_n = clap_height * dar_num * par_den;
4459 clap_width_d = dar_den * par_num;
4460 cdiv = gst_util_greatest_common_divisor (clap_width_n, clap_width_d);
4461 clap_width_n /= cdiv;
4462 clap_width_d /= cdiv;
4464 ext_atom = build_tapt_extension (clef_width, clef_height << 16, prof_width,
4465 height << 16, width << 16, height << 16);
4466 qtpad->trak->tapt = ext_atom;
4468 ext_atom = build_clap_extension (clap_width_n, clap_width_d,
4469 clap_height, 1, 0, 1, 0, 1);
4471 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4474 /* ok, set the pad info accordingly */
4475 qtpad->fourcc = entry.fourcc;
4478 (SampleTableEntry *) atom_trak_set_video_type (qtpad->trak,
4479 qtmux->context, &entry, rate, ext_atom_list);
4480 if (strcmp (mimetype, "video/x-prores") == 0) {
4481 SampleTableEntryMP4V *mp4v = (SampleTableEntryMP4V *) qtpad->trak_ste;
4482 const gchar *compressor = NULL;
4483 mp4v->spatial_quality = 0x3FF;
4484 mp4v->temporal_quality = 0;
4485 mp4v->vendor = FOURCC_appl;
4486 mp4v->horizontal_resolution = 72 << 16;
4487 mp4v->vertical_resolution = 72 << 16;
4488 mp4v->depth = (entry.fourcc == FOURCC_ap4h
4489 || entry.fourcc == FOURCC_ap4x) ? 32 : 24;
4491 /* Set compressor name, required by some software */
4492 switch (entry.fourcc) {
4494 compressor = "Apple ProRes 422";
4497 compressor = "Apple ProRes 422 LT";
4500 compressor = "Apple ProRes 422 HQ";
4503 compressor = "Apple ProRes 422 Proxy";
4506 compressor = "Apple ProRes 4444";
4509 compressor = "Apple ProRes 4444 XQ";
4513 strcpy ((gchar *) mp4v->compressor + 1, compressor);
4514 mp4v->compressor[0] = strlen (compressor);
4518 gst_object_unref (qtmux);
4524 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4525 GST_PAD_NAME (pad), caps);
4526 gst_object_unref (qtmux);
4529 refuse_renegotiation:
4531 GST_WARNING_OBJECT (qtmux,
4532 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4534 gst_object_unref (qtmux);
4540 gst_qt_mux_subtitle_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
4542 GstPad *pad = qtpad->collect.pad;
4543 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
4544 GstStructure *structure;
4545 SubtitleSampleEntry entry = { 0, };
4547 /* does not go well to renegotiate stream mid-way, unless
4548 * the old caps are a subset of the new one (this means upstream
4549 * added more info to the caps, as both should be 'fixed' caps) */
4550 if (qtpad->fourcc) {
4551 GstCaps *current_caps;
4553 current_caps = gst_pad_get_current_caps (pad);
4554 g_assert (caps != NULL);
4556 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
4557 gst_caps_unref (current_caps);
4558 goto refuse_renegotiation;
4560 GST_DEBUG_OBJECT (qtmux,
4561 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
4562 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
4563 gst_caps_unref (current_caps);
4566 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
4567 GST_DEBUG_PAD_NAME (pad), caps);
4569 /* subtitles default */
4570 subtitle_sample_entry_init (&entry);
4571 qtpad->is_out_of_order = FALSE;
4572 qtpad->sync = FALSE;
4573 qtpad->sparse = TRUE;
4574 qtpad->prepare_buf_func = NULL;
4576 structure = gst_caps_get_structure (caps, 0);
4578 if (gst_structure_has_name (structure, "text/x-raw")) {
4579 const gchar *format = gst_structure_get_string (structure, "format");
4580 if (format && strcmp (format, "utf8") == 0) {
4581 entry.fourcc = FOURCC_tx3g;
4582 qtpad->prepare_buf_func = gst_qt_mux_prepare_tx3g_buffer;
4583 qtpad->create_empty_buffer = gst_qt_mux_create_empty_tx3g_buffer;
4590 qtpad->fourcc = entry.fourcc;
4592 (SampleTableEntry *) atom_trak_set_subtitle_type (qtpad->trak,
4593 qtmux->context, &entry);
4595 gst_object_unref (qtmux);
4601 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4602 GST_PAD_NAME (pad), caps);
4603 gst_object_unref (qtmux);
4606 refuse_renegotiation:
4608 GST_WARNING_OBJECT (qtmux,
4609 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4611 gst_object_unref (qtmux);
4617 gst_qt_mux_sink_event (GstCollectPads * pads, GstCollectData * data,
4618 GstEvent * event, gpointer user_data)
4621 guint32 avg_bitrate = 0, max_bitrate = 0;
4622 GstPad *pad = data->pad;
4623 gboolean ret = TRUE;
4625 qtmux = GST_QT_MUX_CAST (user_data);
4626 switch (GST_EVENT_TYPE (event)) {
4627 case GST_EVENT_CAPS:
4630 GstQTPad *collect_pad;
4632 gst_event_parse_caps (event, &caps);
4634 /* find stream data */
4635 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4636 g_assert (collect_pad);
4637 g_assert (collect_pad->set_caps);
4639 ret = collect_pad->set_caps (collect_pad, caps);
4640 gst_event_unref (event);
4644 case GST_EVENT_TAG:{
4646 GstTagSetter *setter = GST_TAG_SETTER (qtmux);
4647 GstTagMergeMode mode;
4649 GstQTPad *collect_pad;
4651 GST_OBJECT_LOCK (qtmux);
4652 mode = gst_tag_setter_get_tag_merge_mode (setter);
4653 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4655 gst_event_parse_tag (event, &list);
4656 GST_DEBUG_OBJECT (qtmux, "received tag event on pad %s:%s : %"
4657 GST_PTR_FORMAT, GST_DEBUG_PAD_NAME (pad), list);
4659 if (gst_tag_list_get_scope (list) == GST_TAG_SCOPE_GLOBAL) {
4660 gst_tag_setter_merge_tags (setter, list, mode);
4661 qtmux->tags_changed = TRUE;
4663 if (!collect_pad->tags)
4664 collect_pad->tags = gst_tag_list_new_empty ();
4665 gst_tag_list_insert (collect_pad->tags, list, mode);
4666 collect_pad->tags_changed = TRUE;
4668 GST_OBJECT_UNLOCK (qtmux);
4670 if (gst_tag_list_get_uint (list, GST_TAG_BITRATE, &avg_bitrate) |
4671 gst_tag_list_get_uint (list, GST_TAG_MAXIMUM_BITRATE, &max_bitrate)) {
4672 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4675 if (avg_bitrate > 0 && avg_bitrate < G_MAXUINT32)
4676 qtpad->avg_bitrate = avg_bitrate;
4677 if (max_bitrate > 0 && max_bitrate < G_MAXUINT32)
4678 qtpad->max_bitrate = max_bitrate;
4681 if (gst_tag_list_get_string (list, GST_TAG_LANGUAGE_CODE, &code)) {
4682 const char *iso_code = gst_tag_get_language_code_iso_639_2T (code);
4684 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4687 /* https://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html */
4688 qtpad->trak->mdia.mdhd.language_code =
4689 (iso_code[0] - 0x60) * 0x400 + (iso_code[1] - 0x60) * 0x20 +
4690 (iso_code[2] - 0x60);
4696 gst_event_unref (event);
4706 return gst_collect_pads_event_default (pads, data, event, FALSE);
4712 gst_qt_mux_release_pad (GstElement * element, GstPad * pad)
4714 GstQTMux *mux = GST_QT_MUX_CAST (element);
4717 GST_DEBUG_OBJECT (element, "Releasing %s:%s", GST_DEBUG_PAD_NAME (pad));
4719 for (walk = mux->sinkpads; walk; walk = g_slist_next (walk)) {
4720 GstQTPad *qtpad = (GstQTPad *) walk->data;
4721 GST_DEBUG ("Checking %s:%s", GST_DEBUG_PAD_NAME (qtpad->collect.pad));
4722 if (qtpad->collect.pad == pad) {
4723 /* this is it, remove */
4724 mux->sinkpads = g_slist_delete_link (mux->sinkpads, walk);
4725 gst_element_remove_pad (element, pad);
4730 if (mux->current_pad && mux->current_pad->collect.pad == pad) {
4731 mux->current_pad = NULL;
4732 mux->current_chunk_size = 0;
4733 mux->current_chunk_duration = 0;
4736 gst_collect_pads_remove_pad (mux->collect, pad);
4738 if (mux->sinkpads == NULL) {
4739 /* No more outstanding request pads, reset our counters */
4740 mux->video_pads = 0;
4741 mux->audio_pads = 0;
4742 mux->subtitle_pads = 0;
4747 gst_qt_mux_request_new_pad (GstElement * element,
4748 GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps)
4750 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
4751 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
4752 GstQTPad *collect_pad;
4754 GstQTPadSetCapsFunc setcaps_func;
4757 gboolean lock = TRUE;
4759 if (templ->direction != GST_PAD_SINK)
4760 goto wrong_direction;
4762 if (qtmux->state > GST_QT_MUX_STATE_STARTED)
4765 if (templ == gst_element_class_get_pad_template (klass, "audio_%u")) {
4766 setcaps_func = gst_qt_mux_audio_sink_set_caps;
4767 if (req_name != NULL && sscanf (req_name, "audio_%u", &pad_id) == 1) {
4768 name = g_strdup (req_name);
4770 name = g_strdup_printf ("audio_%u", qtmux->audio_pads++);
4772 } else if (templ == gst_element_class_get_pad_template (klass, "video_%u")) {
4773 setcaps_func = gst_qt_mux_video_sink_set_caps;
4774 if (req_name != NULL && sscanf (req_name, "video_%u", &pad_id) == 1) {
4775 name = g_strdup (req_name);
4777 name = g_strdup_printf ("video_%u", qtmux->video_pads++);
4779 } else if (templ == gst_element_class_get_pad_template (klass, "subtitle_%u")) {
4780 setcaps_func = gst_qt_mux_subtitle_sink_set_caps;
4781 if (req_name != NULL && sscanf (req_name, "subtitle_%u", &pad_id) == 1) {
4782 name = g_strdup (req_name);
4784 name = g_strdup_printf ("subtitle_%u", qtmux->subtitle_pads++);
4788 goto wrong_template;
4790 GST_DEBUG_OBJECT (qtmux, "Requested pad: %s", name);
4792 /* create pad and add to collections */
4793 newpad = gst_pad_new_from_template (templ, name);
4795 collect_pad = (GstQTPad *)
4796 gst_collect_pads_add_pad (qtmux->collect, newpad, sizeof (GstQTPad),
4797 (GstCollectDataDestroyNotify) (gst_qt_mux_pad_reset), lock);
4799 gst_qt_mux_pad_reset (collect_pad);
4800 collect_pad->trak = atom_trak_new (qtmux->context);
4801 atom_moov_add_trak (qtmux->moov, collect_pad->trak);
4803 qtmux->sinkpads = g_slist_append (qtmux->sinkpads, collect_pad);
4805 /* set up pad functions */
4806 collect_pad->set_caps = setcaps_func;
4808 gst_pad_set_active (newpad, TRUE);
4809 gst_element_add_pad (element, newpad);
4816 GST_WARNING_OBJECT (qtmux, "Request pad that is not a SINK pad.");
4821 GST_WARNING_OBJECT (qtmux, "Not providing request pad after stream start.");
4826 GST_WARNING_OBJECT (qtmux, "This is not our template!");
4832 gst_qt_mux_get_property (GObject * object,
4833 guint prop_id, GValue * value, GParamSpec * pspec)
4835 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4837 GST_OBJECT_LOCK (qtmux);
4839 case PROP_MOVIE_TIMESCALE:
4840 g_value_set_uint (value, qtmux->timescale);
4842 case PROP_TRAK_TIMESCALE:
4843 g_value_set_uint (value, qtmux->trak_timescale);
4846 g_value_set_boolean (value, qtmux->guess_pts);
4848 #ifndef GST_REMOVE_DEPRECATED
4849 case PROP_DTS_METHOD:
4850 g_value_set_enum (value, qtmux->dts_method);
4853 case PROP_FAST_START:
4854 g_value_set_boolean (value, qtmux->fast_start);
4856 case PROP_FAST_START_TEMP_FILE:
4857 g_value_set_string (value, qtmux->fast_start_file_path);
4859 case PROP_MOOV_RECOV_FILE:
4860 g_value_set_string (value, qtmux->moov_recov_file_path);
4862 case PROP_FRAGMENT_DURATION:
4863 g_value_set_uint (value, qtmux->fragment_duration);
4865 case PROP_STREAMABLE:
4866 g_value_set_boolean (value, qtmux->streamable);
4868 case PROP_RESERVED_MAX_DURATION:
4869 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4871 case PROP_RESERVED_DURATION_REMAINING:
4872 if (qtmux->reserved_duration_remaining == GST_CLOCK_TIME_NONE)
4873 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4875 GstClockTime remaining = qtmux->reserved_duration_remaining;
4877 /* Report the remaining space as the calculated remaining, minus
4878 * however much we've muxed since the last update */
4879 if (remaining > qtmux->muxed_since_last_update)
4880 remaining -= qtmux->muxed_since_last_update;
4883 GST_LOG_OBJECT (qtmux, "reserved duration remaining - reporting %"
4884 G_GUINT64_FORMAT "(%" G_GUINT64_FORMAT " - %" G_GUINT64_FORMAT,
4885 remaining, qtmux->reserved_duration_remaining,
4886 qtmux->muxed_since_last_update);
4887 g_value_set_uint64 (value, remaining);
4890 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4891 g_value_set_uint64 (value, qtmux->reserved_moov_update_period);
4893 case PROP_RESERVED_BYTES_PER_SEC:
4894 g_value_set_uint (value, qtmux->reserved_bytes_per_sec_per_trak);
4896 case PROP_INTERLEAVE_BYTES:
4897 g_value_set_uint64 (value, qtmux->interleave_bytes);
4899 case PROP_INTERLEAVE_TIME:
4900 g_value_set_uint64 (value, qtmux->interleave_time);
4903 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4906 GST_OBJECT_UNLOCK (qtmux);
4910 gst_qt_mux_generate_fast_start_file_path (GstQTMux * qtmux)
4914 g_free (qtmux->fast_start_file_path);
4915 qtmux->fast_start_file_path = NULL;
4917 tmp = g_strdup_printf ("%s%d", "qtmux", g_random_int ());
4918 qtmux->fast_start_file_path = g_build_filename (g_get_tmp_dir (), tmp, NULL);
4923 gst_qt_mux_set_property (GObject * object,
4924 guint prop_id, const GValue * value, GParamSpec * pspec)
4926 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4928 GST_OBJECT_LOCK (qtmux);
4930 case PROP_MOVIE_TIMESCALE:
4931 qtmux->timescale = g_value_get_uint (value);
4933 case PROP_TRAK_TIMESCALE:
4934 qtmux->trak_timescale = g_value_get_uint (value);
4937 qtmux->guess_pts = g_value_get_boolean (value);
4939 #ifndef GST_REMOVE_DEPRECATED
4940 case PROP_DTS_METHOD:
4941 qtmux->dts_method = g_value_get_enum (value);
4944 case PROP_FAST_START:
4945 qtmux->fast_start = g_value_get_boolean (value);
4947 case PROP_FAST_START_TEMP_FILE:
4948 g_free (qtmux->fast_start_file_path);
4949 qtmux->fast_start_file_path = g_value_dup_string (value);
4950 /* NULL means to generate a random one */
4951 if (!qtmux->fast_start_file_path) {
4952 gst_qt_mux_generate_fast_start_file_path (qtmux);
4955 case PROP_MOOV_RECOV_FILE:
4956 g_free (qtmux->moov_recov_file_path);
4957 qtmux->moov_recov_file_path = g_value_dup_string (value);
4959 case PROP_FRAGMENT_DURATION:
4960 qtmux->fragment_duration = g_value_get_uint (value);
4962 case PROP_STREAMABLE:{
4963 GstQTMuxClass *qtmux_klass =
4964 (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
4965 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML) {
4966 qtmux->streamable = g_value_get_boolean (value);
4970 case PROP_RESERVED_MAX_DURATION:
4971 qtmux->reserved_max_duration = g_value_get_uint64 (value);
4973 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4974 qtmux->reserved_moov_update_period = g_value_get_uint64 (value);
4976 case PROP_RESERVED_BYTES_PER_SEC:
4977 qtmux->reserved_bytes_per_sec_per_trak = g_value_get_uint (value);
4979 case PROP_INTERLEAVE_BYTES:
4980 qtmux->interleave_bytes = g_value_get_uint64 (value);
4981 qtmux->interleave_bytes_set = TRUE;
4983 case PROP_INTERLEAVE_TIME:
4984 qtmux->interleave_time = g_value_get_uint64 (value);
4985 qtmux->interleave_time_set = TRUE;
4988 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4991 GST_OBJECT_UNLOCK (qtmux);
4994 static GstStateChangeReturn
4995 gst_qt_mux_change_state (GstElement * element, GstStateChange transition)
4997 GstStateChangeReturn ret;
4998 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
5000 switch (transition) {
5001 case GST_STATE_CHANGE_NULL_TO_READY:
5003 case GST_STATE_CHANGE_READY_TO_PAUSED:
5004 gst_collect_pads_start (qtmux->collect);
5005 qtmux->state = GST_QT_MUX_STATE_STARTED;
5006 qtmux->first_tc = NULL;
5009 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
5011 case GST_STATE_CHANGE_PAUSED_TO_READY:
5012 gst_collect_pads_stop (qtmux->collect);
5018 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
5020 switch (transition) {
5021 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
5023 case GST_STATE_CHANGE_PAUSED_TO_READY:
5024 gst_qt_mux_reset (qtmux, TRUE);
5026 case GST_STATE_CHANGE_READY_TO_NULL:
5036 gst_qt_mux_register (GstPlugin * plugin)
5038 GTypeInfo typeinfo = {
5039 sizeof (GstQTMuxClass),
5040 (GBaseInitFunc) gst_qt_mux_base_init,
5042 (GClassInitFunc) gst_qt_mux_class_init,
5047 (GInstanceInitFunc) gst_qt_mux_init,
5049 static const GInterfaceInfo tag_setter_info = {
5052 static const GInterfaceInfo tag_xmp_writer_info = {
5055 static const GInterfaceInfo preset_info = {
5059 GstQTMuxFormat format;
5060 GstQTMuxClassParams *params;
5063 GST_DEBUG_CATEGORY_INIT (gst_qt_mux_debug, "qtmux", 0, "QT Muxer");
5065 GST_LOG ("Registering muxers");
5068 GstQTMuxFormatProp *prop;
5069 GstCaps *subtitle_caps;
5071 prop = &gst_qt_mux_format_list[i];
5072 format = prop->format;
5073 if (format == GST_QT_MUX_FORMAT_NONE)
5076 /* create a cache for these properties */
5077 params = g_new0 (GstQTMuxClassParams, 1);
5078 params->prop = prop;
5079 params->src_caps = gst_static_caps_get (&prop->src_caps);
5080 params->video_sink_caps = gst_static_caps_get (&prop->video_sink_caps);
5081 params->audio_sink_caps = gst_static_caps_get (&prop->audio_sink_caps);
5082 subtitle_caps = gst_static_caps_get (&prop->subtitle_sink_caps);
5083 if (!gst_caps_is_equal (subtitle_caps, GST_CAPS_NONE)) {
5084 params->subtitle_sink_caps = subtitle_caps;
5086 gst_caps_unref (subtitle_caps);
5089 /* create the type now */
5090 type = g_type_register_static (GST_TYPE_ELEMENT, prop->type_name, &typeinfo,
5092 g_type_set_qdata (type, GST_QT_MUX_PARAMS_QDATA, (gpointer) params);
5093 g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, &tag_setter_info);
5094 g_type_add_interface_static (type, GST_TYPE_TAG_XMP_WRITER,
5095 &tag_xmp_writer_info);
5096 g_type_add_interface_static (type, GST_TYPE_PRESET, &preset_info);
5098 if (!gst_element_register (plugin, prop->name, prop->rank, type))
5104 GST_LOG ("Finished registering muxers");
5106 /* FIXME: ideally classification tag should be added and
5107 registered in gstreamer core gsttaglist
5110 GST_LOG ("Registering tags");
5112 gst_tag_register (GST_TAG_3GP_CLASSIFICATION, GST_TAG_FLAG_META,
5113 G_TYPE_STRING, GST_TAG_3GP_CLASSIFICATION, "content classification",
5114 gst_tag_merge_use_first);
5116 GST_LOG ("Finished registering tags");