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
273 /* some spare for header size as well */
274 #define MDAT_LARGE_FILE_LIMIT ((guint64) 1024 * 1024 * 1024 * 2)
276 #define DEFAULT_MOVIE_TIMESCALE 1800
277 #define DEFAULT_TRAK_TIMESCALE 0
278 #define DEFAULT_DO_CTTS TRUE
279 #define DEFAULT_FAST_START FALSE
280 #define DEFAULT_FAST_START_TEMP_FILE NULL
281 #define DEFAULT_MOOV_RECOV_FILE NULL
282 #define DEFAULT_FRAGMENT_DURATION 0
283 #define DEFAULT_STREAMABLE TRUE
284 #ifndef GST_REMOVE_DEPRECATED
285 #define DEFAULT_DTS_METHOD DTS_METHOD_REORDER
287 #define DEFAULT_RESERVED_MAX_DURATION GST_CLOCK_TIME_NONE
288 #define DEFAULT_RESERVED_MOOV_UPDATE_PERIOD GST_CLOCK_TIME_NONE
289 #define DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK 550
291 static void gst_qt_mux_finalize (GObject * object);
293 static GstStateChangeReturn gst_qt_mux_change_state (GstElement * element,
294 GstStateChange transition);
296 /* property functions */
297 static void gst_qt_mux_set_property (GObject * object,
298 guint prop_id, const GValue * value, GParamSpec * pspec);
299 static void gst_qt_mux_get_property (GObject * object,
300 guint prop_id, GValue * value, GParamSpec * pspec);
303 static GstPad *gst_qt_mux_request_new_pad (GstElement * element,
304 GstPadTemplate * templ, const gchar * name, const GstCaps * caps);
305 static void gst_qt_mux_release_pad (GstElement * element, GstPad * pad);
308 static gboolean gst_qt_mux_sink_event (GstCollectPads * pads,
309 GstCollectData * data, GstEvent * event, gpointer user_data);
311 static GstFlowReturn gst_qt_mux_handle_buffer (GstCollectPads * pads,
312 GstCollectData * cdata, GstBuffer * buf, gpointer user_data);
313 static GstFlowReturn gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad,
317 gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux);
319 static GstElementClass *parent_class = NULL;
322 gst_qt_mux_base_init (gpointer g_class)
324 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
325 GstQTMuxClass *klass = (GstQTMuxClass *) g_class;
326 GstQTMuxClassParams *params;
327 GstPadTemplate *videosinktempl, *audiosinktempl, *subtitlesinktempl;
328 GstPadTemplate *srctempl;
329 gchar *longname, *description;
332 (GstQTMuxClassParams *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (g_class),
333 GST_QT_MUX_PARAMS_QDATA);
334 g_assert (params != NULL);
336 /* construct the element details struct */
337 longname = g_strdup_printf ("%s Muxer", params->prop->long_name);
338 description = g_strdup_printf ("Multiplex audio and video into a %s file",
339 params->prop->long_name);
340 gst_element_class_set_static_metadata (element_class, longname,
341 "Codec/Muxer", description,
342 "Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>");
344 g_free (description);
347 srctempl = gst_pad_template_new ("src", GST_PAD_SRC,
348 GST_PAD_ALWAYS, params->src_caps);
349 gst_element_class_add_pad_template (element_class, srctempl);
351 if (params->audio_sink_caps) {
352 audiosinktempl = gst_pad_template_new ("audio_%u",
353 GST_PAD_SINK, GST_PAD_REQUEST, params->audio_sink_caps);
354 gst_element_class_add_pad_template (element_class, audiosinktempl);
357 if (params->video_sink_caps) {
358 videosinktempl = gst_pad_template_new ("video_%u",
359 GST_PAD_SINK, GST_PAD_REQUEST, params->video_sink_caps);
360 gst_element_class_add_pad_template (element_class, videosinktempl);
363 if (params->subtitle_sink_caps) {
364 subtitlesinktempl = gst_pad_template_new ("subtitle_%u",
365 GST_PAD_SINK, GST_PAD_REQUEST, params->subtitle_sink_caps);
366 gst_element_class_add_pad_template (element_class, subtitlesinktempl);
369 klass->format = params->prop->format;
373 gst_qt_mux_class_init (GstQTMuxClass * klass)
375 GObjectClass *gobject_class;
376 GstElementClass *gstelement_class;
377 GParamFlags streamable_flags;
378 const gchar *streamable_desc;
380 #define STREAMABLE_DESC "If set to true, the output should be as if it is to "\
381 "be streamed and hence no indexes written or duration written."
383 gobject_class = (GObjectClass *) klass;
384 gstelement_class = (GstElementClass *) klass;
386 parent_class = g_type_class_peek_parent (klass);
388 gobject_class->finalize = gst_qt_mux_finalize;
389 gobject_class->get_property = gst_qt_mux_get_property;
390 gobject_class->set_property = gst_qt_mux_set_property;
392 streamable_flags = G_PARAM_READWRITE | G_PARAM_CONSTRUCT;
393 if (klass->format == GST_QT_MUX_FORMAT_ISML) {
394 streamable_desc = STREAMABLE_DESC;
395 streamable = DEFAULT_STREAMABLE;
398 STREAMABLE_DESC " (DEPRECATED, only valid for fragmented MP4)";
399 streamable_flags |= G_PARAM_DEPRECATED;
403 g_object_class_install_property (gobject_class, PROP_MOVIE_TIMESCALE,
404 g_param_spec_uint ("movie-timescale", "Movie timescale",
405 "Timescale to use in the movie (units per second)",
406 1, G_MAXUINT32, DEFAULT_MOVIE_TIMESCALE,
407 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
408 g_object_class_install_property (gobject_class, PROP_TRAK_TIMESCALE,
409 g_param_spec_uint ("trak-timescale", "Track timescale",
410 "Timescale to use for the tracks (units per second, 0 is automatic)",
411 0, G_MAXUINT32, DEFAULT_TRAK_TIMESCALE,
412 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
413 g_object_class_install_property (gobject_class, PROP_DO_CTTS,
414 g_param_spec_boolean ("presentation-time",
415 "Include presentation-time info",
416 "Calculate and include presentation/composition time "
417 "(in addition to decoding time)", DEFAULT_DO_CTTS,
418 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
419 #ifndef GST_REMOVE_DEPRECATED
420 g_object_class_install_property (gobject_class, PROP_DTS_METHOD,
421 g_param_spec_enum ("dts-method", "dts-method",
422 "Method to determine DTS time (DEPRECATED)",
423 GST_TYPE_QT_MUX_DTS_METHOD, DEFAULT_DTS_METHOD,
424 G_PARAM_DEPRECATED | G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
425 G_PARAM_STATIC_STRINGS));
427 g_object_class_install_property (gobject_class, PROP_FAST_START,
428 g_param_spec_boolean ("faststart", "Format file to faststart",
429 "If the file should be formatted for faststart (headers first)",
430 DEFAULT_FAST_START, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
431 g_object_class_install_property (gobject_class, PROP_FAST_START_TEMP_FILE,
432 g_param_spec_string ("faststart-file", "File to use for storing buffers",
433 "File that will be used temporarily to store data from the stream "
434 "when creating a faststart file. If null a filepath will be "
435 "created automatically", DEFAULT_FAST_START_TEMP_FILE,
436 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
437 g_object_class_install_property (gobject_class, PROP_MOOV_RECOV_FILE,
438 g_param_spec_string ("moov-recovery-file",
439 "File to store data for posterior moov atom recovery",
440 "File to be used to store "
441 "data for moov atom making movie file recovery possible in case "
442 "of a crash during muxing. Null for disabled. (Experimental)",
443 DEFAULT_MOOV_RECOV_FILE,
444 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
445 g_object_class_install_property (gobject_class, PROP_FRAGMENT_DURATION,
446 g_param_spec_uint ("fragment-duration", "Fragment duration",
447 "Fragment durations in ms (produce a fragmented file if > 0)",
448 0, G_MAXUINT32, klass->format == GST_QT_MUX_FORMAT_ISML ?
449 2000 : DEFAULT_FRAGMENT_DURATION,
450 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
451 g_object_class_install_property (gobject_class, PROP_STREAMABLE,
452 g_param_spec_boolean ("streamable", "Streamable", streamable_desc,
453 streamable, streamable_flags | G_PARAM_STATIC_STRINGS));
454 g_object_class_install_property (gobject_class, PROP_RESERVED_MAX_DURATION,
455 g_param_spec_uint64 ("reserved-max-duration",
456 "Reserved maximum file duration (ns)",
457 "When set to a value > 0, reserves space for index tables at the "
458 "beginning of the file.",
459 0, G_MAXUINT64, DEFAULT_RESERVED_MAX_DURATION,
460 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
461 g_object_class_install_property (gobject_class,
462 PROP_RESERVED_DURATION_REMAINING,
463 g_param_spec_uint64 ("reserved-duration-remaining",
464 "Report the approximate amount of remaining recording space (ns)",
465 "Reports the approximate amount of remaining moov header space "
466 "reserved using reserved-max-duration", 0, G_MAXUINT64, 0,
467 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
468 g_object_class_install_property (gobject_class,
469 PROP_RESERVED_MOOV_UPDATE_PERIOD,
470 g_param_spec_uint64 ("reserved-moov-update-period",
471 "Interval at which to update index tables (ns)",
472 "When used with reserved-max-duration, periodically updates the "
473 "index tables with information muxed so far.", 0, G_MAXUINT64,
474 DEFAULT_RESERVED_MOOV_UPDATE_PERIOD,
475 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
476 g_object_class_install_property (gobject_class, PROP_RESERVED_BYTES_PER_SEC,
477 g_param_spec_uint ("reserved-bytes-per-sec",
478 "Reserved MOOV bytes per second, per track",
479 "Multiplier for converting reserved-max-duration into bytes of header to reserve, per second, per track",
480 0, 10000, DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK,
481 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
483 gstelement_class->request_new_pad =
484 GST_DEBUG_FUNCPTR (gst_qt_mux_request_new_pad);
485 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_qt_mux_change_state);
486 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_qt_mux_release_pad);
490 gst_qt_mux_pad_reset (GstQTPad * qtpad)
493 qtpad->is_out_of_order = FALSE;
494 qtpad->sample_size = 0;
497 qtpad->dts_adjustment = GST_CLOCK_TIME_NONE;
498 qtpad->first_ts = GST_CLOCK_TIME_NONE;
499 qtpad->first_dts = GST_CLOCK_TIME_NONE;
500 qtpad->prepare_buf_func = NULL;
501 qtpad->create_empty_buffer = NULL;
502 qtpad->avg_bitrate = 0;
503 qtpad->max_bitrate = 0;
504 qtpad->total_duration = 0;
505 qtpad->total_bytes = 0;
506 qtpad->sparse = FALSE;
511 gst_buffer_replace (&qtpad->last_buf, NULL);
514 gst_tag_list_unref (qtpad->tags);
518 /* reference owned elsewhere */
522 atom_traf_free (qtpad->traf);
525 atom_array_clear (&qtpad->fragment_buffers);
527 /* reference owned elsewhere */
532 * Takes GstQTMux back to its initial state
535 gst_qt_mux_reset (GstQTMux * qtmux, gboolean alloc)
539 qtmux->state = GST_QT_MUX_STATE_NONE;
540 qtmux->header_size = 0;
541 qtmux->mdat_size = 0;
544 qtmux->longest_chunk = GST_CLOCK_TIME_NONE;
545 qtmux->video_pads = 0;
546 qtmux->audio_pads = 0;
547 qtmux->fragment_sequence = 0;
550 atom_ftyp_free (qtmux->ftyp);
554 atom_moov_free (qtmux->moov);
558 atom_mfra_free (qtmux->mfra);
561 if (qtmux->fast_start_file) {
562 fclose (qtmux->fast_start_file);
563 g_remove (qtmux->fast_start_file_path);
564 qtmux->fast_start_file = NULL;
566 if (qtmux->moov_recov_file) {
567 fclose (qtmux->moov_recov_file);
568 qtmux->moov_recov_file = NULL;
570 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
571 AtomInfo *ainfo = (AtomInfo *) walk->data;
572 ainfo->free_func (ainfo->atom);
575 g_slist_free (qtmux->extra_atoms);
576 qtmux->extra_atoms = NULL;
578 GST_OBJECT_LOCK (qtmux);
579 gst_tag_setter_reset_tags (GST_TAG_SETTER (qtmux));
580 GST_OBJECT_UNLOCK (qtmux);
583 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
584 GstQTPad *qtpad = (GstQTPad *) walk->data;
585 gst_qt_mux_pad_reset (qtpad);
587 /* hm, moov_free above yanked the traks away from us,
588 * so do not free, but do clear */
593 qtmux->moov = atom_moov_new (qtmux->context);
594 /* ensure all is as nice and fresh as request_new_pad would provide it */
595 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
596 GstQTPad *qtpad = (GstQTPad *) walk->data;
598 qtpad->trak = atom_trak_new (qtmux->context);
599 atom_moov_add_trak (qtmux->moov, qtpad->trak);
603 qtmux->reserved_moov_size = 0;
604 qtmux->last_moov_update = GST_CLOCK_TIME_NONE;
605 qtmux->muxed_since_last_update = 0;
606 qtmux->reserved_duration_remaining = GST_CLOCK_TIME_NONE;
610 gst_qt_mux_init (GstQTMux * qtmux, GstQTMuxClass * qtmux_klass)
612 GstElementClass *klass = GST_ELEMENT_CLASS (qtmux_klass);
613 GstPadTemplate *templ;
615 templ = gst_element_class_get_pad_template (klass, "src");
616 qtmux->srcpad = gst_pad_new_from_template (templ, "src");
617 gst_pad_use_fixed_caps (qtmux->srcpad);
618 gst_element_add_pad (GST_ELEMENT (qtmux), qtmux->srcpad);
620 qtmux->sinkpads = NULL;
621 qtmux->collect = gst_collect_pads_new ();
622 gst_collect_pads_set_buffer_function (qtmux->collect,
623 GST_DEBUG_FUNCPTR (gst_qt_mux_handle_buffer), qtmux);
624 gst_collect_pads_set_event_function (qtmux->collect,
625 GST_DEBUG_FUNCPTR (gst_qt_mux_sink_event), qtmux);
626 gst_collect_pads_set_clip_function (qtmux->collect,
627 GST_DEBUG_FUNCPTR (gst_collect_pads_clip_running_time), qtmux);
629 /* properties set to default upon construction */
631 qtmux->reserved_max_duration = DEFAULT_RESERVED_MAX_DURATION;
632 qtmux->reserved_moov_update_period = DEFAULT_RESERVED_MOOV_UPDATE_PERIOD;
633 qtmux->reserved_bytes_per_sec_per_trak =
634 DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK;
636 /* always need this */
638 atoms_context_new (gst_qt_mux_map_format_to_flavor (qtmux_klass->format));
640 /* internals to initial state */
641 gst_qt_mux_reset (qtmux, TRUE);
646 gst_qt_mux_finalize (GObject * object)
648 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
650 gst_qt_mux_reset (qtmux, FALSE);
652 g_free (qtmux->fast_start_file_path);
653 g_free (qtmux->moov_recov_file_path);
655 atoms_context_free (qtmux->context);
656 gst_object_unref (qtmux->collect);
658 g_slist_free (qtmux->sinkpads);
660 G_OBJECT_CLASS (parent_class)->finalize (object);
664 gst_qt_mux_prepare_jpc_buffer (GstQTPad * qtpad, GstBuffer * buf,
671 GST_LOG_OBJECT (qtmux, "Preparing jpc buffer");
676 size = gst_buffer_get_size (buf);
677 newbuf = gst_buffer_new_and_alloc (size + 8);
678 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_ALL, 8, size);
680 gst_buffer_map (newbuf, &map, GST_MAP_WRITE);
681 GST_WRITE_UINT32_BE (map.data, map.size);
682 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_jp2c);
684 gst_buffer_unmap (buf, &map);
685 gst_buffer_unref (buf);
691 gst_qt_mux_prepare_tx3g_buffer (GstQTPad * qtpad, GstBuffer * buf,
698 const guint8 *dataend;
700 GST_LOG_OBJECT (qtmux, "Preparing tx3g buffer %" GST_PTR_FORMAT, buf);
705 gst_buffer_map (buf, &frommap, GST_MAP_READ);
707 dataend = memchr (frommap.data, 0, frommap.size);
708 size = dataend ? dataend - frommap.data : frommap.size;
709 newbuf = gst_buffer_new_and_alloc (size + 2);
711 gst_buffer_map (newbuf, &tomap, GST_MAP_WRITE);
713 GST_WRITE_UINT16_BE (tomap.data, size);
714 memcpy (tomap.data + 2, frommap.data, size);
716 gst_buffer_unmap (newbuf, &tomap);
717 gst_buffer_unmap (buf, &frommap);
719 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_METADATA, 0, size);
721 /* gst_buffer_copy_into is trying to be too clever and
722 * won't copy duration when size is different */
723 GST_BUFFER_DURATION (newbuf) = GST_BUFFER_DURATION (buf);
725 gst_buffer_unref (buf);
731 gst_qt_mux_pad_add_ac3_extension (GstQTMux * qtmux, GstQTPad * qtpad,
732 guint8 fscod, guint8 frmsizcod, guint8 bsid, guint8 bsmod, guint8 acmod,
737 g_return_if_fail (qtpad->trak_ste);
739 ext = build_ac3_extension (fscod, bsid, bsmod, acmod, lfe_on, frmsizcod >> 1); /* bitrate_code is inside frmsizcod */
741 sample_table_entry_add_ext_atom (qtpad->trak_ste, ext);
745 gst_qt_mux_prepare_parse_ac3_frame (GstQTPad * qtpad, GstBuffer * buf,
749 GstByteReader reader;
752 if (!gst_buffer_map (buf, &map, GST_MAP_READ)) {
753 GST_WARNING_OBJECT (qtpad->collect.pad, "Failed to map buffer");
757 if (G_UNLIKELY (map.size < 8))
760 gst_byte_reader_init (&reader, map.data, map.size);
761 off = gst_byte_reader_masked_scan_uint32 (&reader, 0xffff0000, 0x0b770000,
766 guint8 fscod, frmsizcod, bsid, bsmod, acmod, lfe_on;
768 GST_DEBUG_OBJECT (qtpad->collect.pad, "Found ac3 sync point at offset: %u",
771 gst_bit_reader_init (&bits, map.data, map.size);
773 /* off + sync + crc */
774 gst_bit_reader_skip_unchecked (&bits, off * 8 + 16 + 16);
776 fscod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 2);
777 frmsizcod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 6);
778 bsid = gst_bit_reader_get_bits_uint8_unchecked (&bits, 5);
779 bsmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
780 acmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
782 if ((acmod & 0x1) && (acmod != 0x1)) /* 3 front channels */
783 gst_bit_reader_skip_unchecked (&bits, 2);
784 if ((acmod & 0x4)) /* if a surround channel exists */
785 gst_bit_reader_skip_unchecked (&bits, 2);
786 if (acmod == 0x2) /* if in 2/0 mode */
787 gst_bit_reader_skip_unchecked (&bits, 2);
789 lfe_on = gst_bit_reader_get_bits_uint8_unchecked (&bits, 1);
791 gst_qt_mux_pad_add_ac3_extension (qtmux, qtpad, fscod, frmsizcod, bsid,
792 bsmod, acmod, lfe_on);
794 /* AC-3 spec says that those values should be constant for the
795 * whole stream when muxed in mp4. We trust the input follows it */
796 GST_DEBUG_OBJECT (qtpad->collect.pad, "Data parsed, removing "
797 "prepare buffer function");
798 qtpad->prepare_buf_func = NULL;
802 gst_buffer_unmap (buf, &map);
807 gst_qt_mux_create_empty_tx3g_buffer (GstQTPad * qtpad, gint64 duration)
812 GST_WRITE_UINT16_BE (data, 0);
814 return gst_buffer_new_wrapped (data, 2);
818 gst_qt_mux_add_mp4_tag (GstQTMux * qtmux, const GstTagList * list,
819 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
821 switch (gst_tag_get_type (tag)) {
827 if (!gst_tag_list_get_string (list, tag, &str) || !str)
829 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
830 GST_FOURCC_ARGS (fourcc), str);
831 atom_udta_add_str_tag (udta, fourcc, str);
840 if (!gst_tag_list_get_double (list, tag, &value))
842 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
843 GST_FOURCC_ARGS (fourcc), (gint) value);
844 atom_udta_add_uint_tag (udta, fourcc, 21, (gint) value);
851 /* paired unsigned integers */
855 got_tag = gst_tag_list_get_uint (list, tag, &value);
856 got_tag = gst_tag_list_get_uint (list, tag2, &count) || got_tag;
859 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u/%u",
860 GST_FOURCC_ARGS (fourcc), value, count);
861 atom_udta_add_uint_tag (udta, fourcc, 0,
862 value << 16 | (count & 0xFFFF));
864 /* unpaired unsigned integers */
865 if (!gst_tag_list_get_uint (list, tag, &value))
867 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
868 GST_FOURCC_ARGS (fourcc), value);
869 atom_udta_add_uint_tag (udta, fourcc, 1, value);
874 g_assert_not_reached ();
880 gst_qt_mux_add_mp4_date (GstQTMux * qtmux, const GstTagList * list,
881 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
889 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
891 if (!gst_tag_list_get_date (list, tag, &date) || !date)
894 year = g_date_get_year (date);
895 month = g_date_get_month (date);
896 day = g_date_get_day (date);
900 if (year == G_DATE_BAD_YEAR && month == G_DATE_BAD_MONTH &&
901 day == G_DATE_BAD_DAY) {
902 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
906 str = g_strdup_printf ("%u-%u-%u", year, month, day);
907 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
908 GST_FOURCC_ARGS (fourcc), str);
909 atom_udta_add_str_tag (udta, fourcc, str);
914 gst_qt_mux_add_mp4_cover (GstQTMux * qtmux, const GstTagList * list,
915 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
917 GValue value = { 0, };
921 GstStructure *structure;
925 g_return_if_fail (gst_tag_get_type (tag) == GST_TYPE_SAMPLE);
927 if (!gst_tag_list_copy_value (&value, list, tag))
930 sample = gst_value_get_sample (&value);
935 buf = gst_sample_get_buffer (sample);
939 caps = gst_sample_get_caps (sample);
941 GST_WARNING_OBJECT (qtmux, "preview image without caps");
945 GST_DEBUG_OBJECT (qtmux, "preview image caps %" GST_PTR_FORMAT, caps);
947 structure = gst_caps_get_structure (caps, 0);
948 if (gst_structure_has_name (structure, "image/jpeg"))
950 else if (gst_structure_has_name (structure, "image/png"))
954 GST_WARNING_OBJECT (qtmux, "preview image format not supported");
958 gst_buffer_map (buf, &map, GST_MAP_READ);
959 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT
960 " -> image size %" G_GSIZE_FORMAT "", GST_FOURCC_ARGS (fourcc), map.size);
961 atom_udta_add_tag (udta, fourcc, flags, map.data, map.size);
962 gst_buffer_unmap (buf, &map);
964 g_value_unset (&value);
968 gst_qt_mux_add_3gp_str (GstQTMux * qtmux, const GstTagList * list,
969 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
974 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_STRING);
975 g_return_if_fail (!tag2 || gst_tag_get_type (tag2) == G_TYPE_UINT);
977 if (!gst_tag_list_get_string (list, tag, &str) || !str)
981 if (!gst_tag_list_get_uint (list, tag2, &number))
985 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
986 GST_FOURCC_ARGS (fourcc), str);
987 atom_udta_add_3gp_str_tag (udta, fourcc, str);
989 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s/%d",
990 GST_FOURCC_ARGS (fourcc), str, number);
991 atom_udta_add_3gp_str_int_tag (udta, fourcc, str, number);
998 gst_qt_mux_add_3gp_date (GstQTMux * qtmux, const GstTagList * list,
999 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1004 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
1006 if (!gst_tag_list_get_date (list, tag, &date) || !date)
1009 year = g_date_get_year (date);
1012 if (year == G_DATE_BAD_YEAR) {
1013 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
1017 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %d",
1018 GST_FOURCC_ARGS (fourcc), year);
1019 atom_udta_add_3gp_uint_tag (udta, fourcc, year);
1023 gst_qt_mux_add_3gp_location (GstQTMux * qtmux, const GstTagList * list,
1024 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1026 gdouble latitude = -360, longitude = -360, altitude = 0;
1027 gchar *location = NULL;
1028 guint8 *data, *ddata;
1029 gint size = 0, len = 0;
1030 gboolean ret = FALSE;
1032 g_return_if_fail (strcmp (tag, GST_TAG_GEO_LOCATION_NAME) == 0);
1034 ret = gst_tag_list_get_string (list, tag, &location);
1035 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LONGITUDE,
1037 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LATITUDE,
1039 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_ELEVATION,
1046 len = strlen (location);
1047 size += len + 1 + 2;
1049 /* role + (long, lat, alt) + body + notes */
1050 size += 1 + 3 * 4 + 1 + 1;
1052 data = ddata = g_malloc (size);
1055 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1058 memcpy (data + 2, location, len);
1059 GST_WRITE_UINT8 (data + 2 + len, 0);
1060 data += len + 1 + 2;
1062 GST_WRITE_UINT8 (data, 0);
1063 /* long, lat, alt */
1064 #define QT_WRITE_SFP32(data, fp) GST_WRITE_UINT32_BE(data, (guint32) ((gint) (fp * 65536.0)))
1065 QT_WRITE_SFP32 (data + 1, longitude);
1066 QT_WRITE_SFP32 (data + 5, latitude);
1067 QT_WRITE_SFP32 (data + 9, altitude);
1068 /* neither astronomical body nor notes */
1069 GST_WRITE_UINT16_BE (data + 13, 0);
1071 GST_DEBUG_OBJECT (qtmux, "Adding tag 'loci'");
1072 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1077 gst_qt_mux_add_3gp_keywords (GstQTMux * qtmux, const GstTagList * list,
1078 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1080 gchar *keywords = NULL;
1081 guint8 *data, *ddata;
1085 g_return_if_fail (strcmp (tag, GST_TAG_KEYWORDS) == 0);
1087 if (!gst_tag_list_get_string (list, tag, &keywords) || !keywords)
1090 kwds = g_strsplit (keywords, ",", 0);
1094 for (i = 0; kwds[i]; i++) {
1095 /* size byte + null-terminator */
1096 size += strlen (kwds[i]) + 1 + 1;
1099 /* language tag + count + keywords */
1102 data = ddata = g_malloc (size);
1105 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1107 GST_WRITE_UINT8 (data + 2, i);
1110 for (i = 0; kwds[i]; ++i) {
1111 gint len = strlen (kwds[i]);
1113 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1114 GST_FOURCC_ARGS (fourcc), kwds[i]);
1116 GST_WRITE_UINT8 (data, len + 1);
1117 memcpy (data + 1, kwds[i], len + 1);
1123 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1128 gst_qt_mux_parse_classification_string (GstQTMux * qtmux, const gchar * input,
1129 guint32 * p_fourcc, guint16 * p_table, gchar ** p_content)
1137 size = strlen (input);
1139 if (size < 4 + 3 + 1 + 1 + 1) {
1140 /* at least the minimum xxxx://y/z */
1141 GST_WARNING_OBJECT (qtmux, "Classification tag input (%s) too short, "
1146 /* read the fourcc */
1147 memcpy (&fourcc, data, 4);
1151 if (strncmp (data, "://", 3) != 0) {
1157 /* read the table number */
1158 if (sscanf (data, "%d", &table) != 1) {
1162 GST_WARNING_OBJECT (qtmux, "Invalid table number in classification tag (%d)"
1163 ", table numbers should be positive, ignoring tag", table);
1167 /* find the next / */
1168 while (size > 0 && data[0] != '/') {
1175 g_assert (data[0] == '/');
1184 /* read up the rest of the string */
1185 *p_content = g_strdup (data);
1186 *p_table = (guint16) table;
1192 GST_WARNING_OBJECT (qtmux, "Ignoring classification tag as "
1193 "input (%s) didn't match the expected entitycode://table/content",
1200 gst_qt_mux_add_3gp_classification (GstQTMux * qtmux, const GstTagList * list,
1201 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1203 gchar *clsf_data = NULL;
1207 gchar *content = NULL;
1210 g_return_if_fail (strcmp (tag, GST_TAG_3GP_CLASSIFICATION) == 0);
1212 if (!gst_tag_list_get_string (list, tag, &clsf_data) || !clsf_data)
1215 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1216 GST_FOURCC_ARGS (fourcc), clsf_data);
1218 /* parse the string, format is:
1219 * entityfourcc://table/content
1221 gst_qt_mux_parse_classification_string (qtmux, clsf_data, &entity, &table,
1225 size = strlen (content) + 1;
1227 /* now we have everything, build the atom
1228 * atom description is at 3GPP TS 26.244 V8.2.0 (2009-09) */
1229 data = g_malloc (4 + 2 + 2 + size);
1230 GST_WRITE_UINT32_LE (data, entity);
1231 GST_WRITE_UINT16_BE (data + 4, (guint16) table);
1232 GST_WRITE_UINT16_BE (data + 6, 0);
1233 memcpy (data + 8, content, size);
1236 atom_udta_add_3gp_tag (udta, fourcc, data, 4 + 2 + 2 + size);
1240 typedef void (*GstQTMuxAddUdtaTagFunc) (GstQTMux * mux,
1241 const GstTagList * list, AtomUDTA * udta, const char *tag,
1242 const char *tag2, guint32 fourcc);
1245 * Struct to record mappings from gstreamer tags to fourcc codes
1247 typedef struct _GstTagToFourcc
1250 const gchar *gsttag;
1251 const gchar *gsttag2;
1252 const GstQTMuxAddUdtaTagFunc func;
1255 /* tag list tags to fourcc matching */
1256 static const GstTagToFourcc tag_matches_mp4[] = {
1257 {FOURCC__alb, GST_TAG_ALBUM, NULL, gst_qt_mux_add_mp4_tag},
1258 {FOURCC_soal, GST_TAG_ALBUM_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1259 {FOURCC__ART, GST_TAG_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1260 {FOURCC_soar, GST_TAG_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1261 {FOURCC_aART, GST_TAG_ALBUM_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1262 {FOURCC_soaa, GST_TAG_ALBUM_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1263 {FOURCC__swr, GST_TAG_APPLICATION_NAME, NULL, gst_qt_mux_add_mp4_tag},
1264 {FOURCC__cmt, GST_TAG_COMMENT, NULL, gst_qt_mux_add_mp4_tag},
1265 {FOURCC__wrt, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_mp4_tag},
1266 {FOURCC_soco, GST_TAG_COMPOSER_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1267 {FOURCC_tvsh, GST_TAG_SHOW_NAME, NULL, gst_qt_mux_add_mp4_tag},
1268 {FOURCC_sosn, GST_TAG_SHOW_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1269 {FOURCC_tvsn, GST_TAG_SHOW_SEASON_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1270 {FOURCC_tves, GST_TAG_SHOW_EPISODE_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1271 {FOURCC__gen, GST_TAG_GENRE, NULL, gst_qt_mux_add_mp4_tag},
1272 {FOURCC__nam, GST_TAG_TITLE, NULL, gst_qt_mux_add_mp4_tag},
1273 {FOURCC_sonm, GST_TAG_TITLE_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1274 {FOURCC_perf, GST_TAG_PERFORMER, NULL, gst_qt_mux_add_mp4_tag},
1275 {FOURCC__grp, GST_TAG_GROUPING, NULL, gst_qt_mux_add_mp4_tag},
1276 {FOURCC__des, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_mp4_tag},
1277 {FOURCC__lyr, GST_TAG_LYRICS, NULL, gst_qt_mux_add_mp4_tag},
1278 {FOURCC__too, GST_TAG_ENCODER, NULL, gst_qt_mux_add_mp4_tag},
1279 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_mp4_tag},
1280 {FOURCC_keyw, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_mp4_tag},
1281 {FOURCC__day, GST_TAG_DATE, NULL, gst_qt_mux_add_mp4_date},
1282 {FOURCC_tmpo, GST_TAG_BEATS_PER_MINUTE, NULL, gst_qt_mux_add_mp4_tag},
1283 {FOURCC_trkn, GST_TAG_TRACK_NUMBER, GST_TAG_TRACK_COUNT,
1284 gst_qt_mux_add_mp4_tag},
1285 {FOURCC_disk, GST_TAG_ALBUM_VOLUME_NUMBER, GST_TAG_ALBUM_VOLUME_COUNT,
1286 gst_qt_mux_add_mp4_tag},
1287 {FOURCC_covr, GST_TAG_PREVIEW_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1288 {FOURCC_covr, GST_TAG_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1292 static const GstTagToFourcc tag_matches_3gp[] = {
1293 {FOURCC_titl, GST_TAG_TITLE, NULL, gst_qt_mux_add_3gp_str},
1294 {FOURCC_dscp, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_3gp_str},
1295 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_3gp_str},
1296 {FOURCC_perf, GST_TAG_ARTIST, NULL, gst_qt_mux_add_3gp_str},
1297 {FOURCC_auth, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_3gp_str},
1298 {FOURCC_gnre, GST_TAG_GENRE, NULL, gst_qt_mux_add_3gp_str},
1299 {FOURCC_kywd, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_3gp_keywords},
1300 {FOURCC_yrrc, GST_TAG_DATE, NULL, gst_qt_mux_add_3gp_date},
1301 {FOURCC_albm, GST_TAG_ALBUM, GST_TAG_TRACK_NUMBER, gst_qt_mux_add_3gp_str},
1302 {FOURCC_loci, GST_TAG_GEO_LOCATION_NAME, NULL, gst_qt_mux_add_3gp_location},
1303 {FOURCC_clsf, GST_TAG_3GP_CLASSIFICATION, NULL,
1304 gst_qt_mux_add_3gp_classification},
1308 /* qtdemux produces these for atoms it cannot parse */
1309 #define GST_QT_DEMUX_PRIVATE_TAG "private-qt-tag"
1312 gst_qt_mux_add_xmp_tags (GstQTMux * qtmux, const GstTagList * list)
1314 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1315 GstBuffer *xmp = NULL;
1317 /* adobe specs only have 'quicktime' and 'mp4',
1318 * but I guess we can extrapolate to gpp.
1319 * Keep mj2 out for now as we don't add any tags for it yet.
1320 * If you have further info about xmp on these formats, please share */
1321 if (qtmux_klass->format == GST_QT_MUX_FORMAT_MJ2)
1324 GST_DEBUG_OBJECT (qtmux, "Adding xmp tags");
1326 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT) {
1327 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1330 atom_udta_add_xmp_tags (&qtmux->moov->udta, xmp);
1333 /* for isom/mp4, it is a top level uuid atom */
1334 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1337 ainfo = build_uuid_xmp_atom (xmp);
1339 qtmux->extra_atoms = g_slist_prepend (qtmux->extra_atoms, ainfo);
1344 gst_buffer_unref (xmp);
1348 gst_qt_mux_add_metadata_tags (GstQTMux * qtmux, const GstTagList * list,
1351 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1354 const gchar *tag, *tag2;
1355 const GstTagToFourcc *tag_matches;
1357 switch (qtmux_klass->format) {
1358 case GST_QT_MUX_FORMAT_3GP:
1359 tag_matches = tag_matches_3gp;
1361 case GST_QT_MUX_FORMAT_MJ2:
1365 /* sort of iTunes style for mp4 and QT (?) */
1366 tag_matches = tag_matches_mp4;
1373 /* Clear existing tags so we don't add them over and over */
1374 atom_udta_clear_tags (udta);
1376 for (i = 0; tag_matches[i].fourcc; i++) {
1377 fourcc = tag_matches[i].fourcc;
1378 tag = tag_matches[i].gsttag;
1379 tag2 = tag_matches[i].gsttag2;
1381 g_assert (tag_matches[i].func);
1382 tag_matches[i].func (qtmux, list, udta, tag, tag2, fourcc);
1385 /* add unparsed blobs if present */
1386 if (gst_tag_exists (GST_QT_DEMUX_PRIVATE_TAG)) {
1389 num_tags = gst_tag_list_get_tag_size (list, GST_QT_DEMUX_PRIVATE_TAG);
1390 for (i = 0; i < num_tags; ++i) {
1391 GstSample *sample = NULL;
1393 const GstStructure *s;
1395 if (!gst_tag_list_get_sample_index (list, GST_QT_DEMUX_PRIVATE_TAG, i,
1398 buf = gst_sample_get_buffer (sample);
1400 if (buf && (s = gst_sample_get_info (sample))) {
1401 const gchar *style = NULL;
1404 gst_buffer_map (buf, &map, GST_MAP_READ);
1405 GST_DEBUG_OBJECT (qtmux,
1406 "Found private tag %d/%d; size %" G_GSIZE_FORMAT ", info %"
1407 GST_PTR_FORMAT, i, num_tags, map.size, s);
1408 if (s && (style = gst_structure_get_string (s, "style"))) {
1409 /* try to prevent some style tag ending up into another variant
1410 * (todo: make into a list if more cases) */
1411 if ((strcmp (style, "itunes") == 0 &&
1412 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) ||
1413 (strcmp (style, "iso") == 0 &&
1414 qtmux_klass->format == GST_QT_MUX_FORMAT_3GP)) {
1415 GST_DEBUG_OBJECT (qtmux, "Adding private tag");
1416 atom_udta_add_blob_tag (udta, map.data, map.size);
1419 gst_buffer_unmap (buf, &map);
1421 gst_sample_unref (sample);
1429 * Gets the tagsetter iface taglist and puts the known tags
1430 * into the output stream
1433 gst_qt_mux_setup_metadata (GstQTMux * qtmux)
1435 const GstTagList *tags = NULL;
1438 GST_OBJECT_LOCK (qtmux);
1439 if (qtmux->tags_changed) {
1440 tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (qtmux));
1441 qtmux->tags_changed = FALSE;
1443 GST_OBJECT_UNLOCK (qtmux);
1445 GST_LOG_OBJECT (qtmux, "tags: %" GST_PTR_FORMAT, tags);
1447 if (tags && !gst_tag_list_is_empty (tags)) {
1448 GstTagList *copy = gst_tag_list_copy (tags);
1450 GST_DEBUG_OBJECT (qtmux, "Removing bogus tags");
1451 gst_tag_list_remove_tag (copy, GST_TAG_VIDEO_CODEC);
1452 gst_tag_list_remove_tag (copy, GST_TAG_AUDIO_CODEC);
1453 gst_tag_list_remove_tag (copy, GST_TAG_CONTAINER_FORMAT);
1455 GST_DEBUG_OBJECT (qtmux, "Formatting tags");
1456 gst_qt_mux_add_metadata_tags (qtmux, copy, &qtmux->moov->udta);
1457 gst_qt_mux_add_xmp_tags (qtmux, copy);
1458 gst_tag_list_unref (copy);
1460 GST_DEBUG_OBJECT (qtmux, "No new tags received");
1463 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
1464 GstCollectData *cdata = (GstCollectData *) walk->data;
1465 GstQTPad *qpad = (GstQTPad *) cdata;
1466 GstPad *pad = qpad->collect.pad;
1468 if (qpad->tags_changed && qpad->tags) {
1469 GST_DEBUG_OBJECT (pad, "Adding tags");
1470 gst_tag_list_remove_tag (qpad->tags, GST_TAG_CONTAINER_FORMAT);
1471 gst_qt_mux_add_metadata_tags (qtmux, qpad->tags, &qpad->trak->udta);
1472 qpad->tags_changed = FALSE;
1473 GST_DEBUG_OBJECT (pad, "Tags added");
1475 GST_DEBUG_OBJECT (pad, "No new tags received");
1480 static inline GstBuffer *
1481 _gst_buffer_new_take_data (guint8 * data, guint size)
1485 buf = gst_buffer_new ();
1486 gst_buffer_append_memory (buf,
1487 gst_memory_new_wrapped (0, data, size, 0, size, data, g_free));
1492 static GstFlowReturn
1493 gst_qt_mux_send_buffer (GstQTMux * qtmux, GstBuffer * buf, guint64 * offset,
1499 g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
1501 size = gst_buffer_get_size (buf);
1502 GST_LOG_OBJECT (qtmux, "sending buffer size %" G_GSIZE_FORMAT, size);
1504 if (mind_fast && qtmux->fast_start_file) {
1508 GST_LOG_OBJECT (qtmux, "to temporary file");
1509 gst_buffer_map (buf, &map, GST_MAP_READ);
1510 ret = fwrite (map.data, sizeof (guint8), map.size, qtmux->fast_start_file);
1511 gst_buffer_unmap (buf, &map);
1512 gst_buffer_unref (buf);
1518 GST_LOG_OBJECT (qtmux, "downstream");
1519 res = gst_pad_push (qtmux->srcpad, buf);
1522 if (G_LIKELY (offset))
1530 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1531 ("Failed to write to temporary file"), GST_ERROR_SYSTEM);
1532 return GST_FLOW_ERROR;
1537 gst_qt_mux_seek_to_beginning (FILE * f)
1540 if (fseeko (f, (off_t) 0, SEEK_SET) != 0)
1542 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1543 if (lseek (fileno (f), (off_t) 0, SEEK_SET) == (off_t) - 1)
1546 if (fseek (f, (long) 0, SEEK_SET) != 0)
1552 static GstFlowReturn
1553 gst_qt_mux_send_buffered_data (GstQTMux * qtmux, guint64 * offset)
1555 GstFlowReturn ret = GST_FLOW_OK;
1556 GstBuffer *buf = NULL;
1558 if (fflush (qtmux->fast_start_file))
1561 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1564 /* hm, this could all take a really really long time,
1565 * but there may not be another way to get moov atom first
1566 * (somehow optimize copy?) */
1567 GST_DEBUG_OBJECT (qtmux, "Sending buffered data");
1568 while (ret == GST_FLOW_OK) {
1569 const int bufsize = 4096;
1573 buf = gst_buffer_new_and_alloc (bufsize);
1574 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1575 size = fread (map.data, sizeof (guint8), bufsize, qtmux->fast_start_file);
1577 gst_buffer_unmap (buf, &map);
1580 GST_LOG_OBJECT (qtmux, "Pushing buffered buffer of size %d", (gint) size);
1581 gst_buffer_unmap (buf, &map);
1582 if (size != bufsize)
1583 gst_buffer_set_size (buf, size);
1584 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
1588 gst_buffer_unref (buf);
1590 if (ftruncate (fileno (qtmux->fast_start_file), 0))
1592 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1600 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1601 ("Failed to flush temporary file"), GST_ERROR_SYSTEM);
1602 ret = GST_FLOW_ERROR;
1607 GST_ELEMENT_ERROR (qtmux, RESOURCE, SEEK,
1608 ("Failed to seek temporary file"), GST_ERROR_SYSTEM);
1609 ret = GST_FLOW_ERROR;
1614 /* clear descriptor so we don't remove temp file later on,
1615 * might be possible to recover */
1616 fclose (qtmux->fast_start_file);
1617 qtmux->fast_start_file = NULL;
1623 * Sends the initial mdat atom fields (size fields and fourcc type),
1624 * the subsequent buffers are considered part of it's data.
1625 * As we can't predict the amount of data that we are going to place in mdat
1626 * we need to record the position of the size field in the stream so we can
1627 * seek back to it later and update when the streams have finished.
1629 static GstFlowReturn
1630 gst_qt_mux_send_mdat_header (GstQTMux * qtmux, guint64 * off, guint64 size,
1631 gboolean extended, gboolean fsync_after)
1636 GST_DEBUG_OBJECT (qtmux, "Sending mdat's atom header, "
1637 "size %" G_GUINT64_FORMAT, size);
1639 /* if the qtmux state is EOS, really write the mdat, otherwise
1640 * allow size == 0 for a placeholder atom */
1641 if (qtmux->state == GST_QT_MUX_STATE_EOS || size > 0)
1645 gboolean large_file = (size > MDAT_LARGE_FILE_LIMIT);
1646 /* Always write 16-bytes, but put a free atom first
1647 * if the size is < 4GB. */
1648 buf = gst_buffer_new_and_alloc (16);
1649 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1652 /* Write extended mdat header and large_size field */
1653 GST_WRITE_UINT32_BE (map.data, 1);
1654 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1655 GST_WRITE_UINT64_BE (map.data + 8, size + 8);
1657 /* Write an empty free atom, then standard 32-bit mdat */
1658 GST_WRITE_UINT32_BE (map.data, 8);
1659 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_free);
1660 GST_WRITE_UINT32_BE (map.data + 8, size);
1661 GST_WRITE_UINT32_LE (map.data + 12, FOURCC_mdat);
1663 gst_buffer_unmap (buf, &map);
1665 buf = gst_buffer_new_and_alloc (8);
1666 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1668 /* Vanilla 32-bit mdat */
1669 GST_WRITE_UINT32_BE (map.data, size);
1670 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1671 gst_buffer_unmap (buf, &map);
1674 GST_LOG_OBJECT (qtmux, "Pushing mdat header");
1676 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1678 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1683 * We get the position of the mdat size field, seek back to it
1684 * and overwrite with the real value
1686 static GstFlowReturn
1687 gst_qt_mux_update_mdat_size (GstQTMux * qtmux, guint64 mdat_pos,
1688 guint64 mdat_size, guint64 * offset, gboolean fsync_after)
1692 /* We must have recorded the mdat position for this to work */
1693 g_assert (mdat_pos != 0);
1695 /* seek and rewrite the header */
1696 gst_segment_init (&segment, GST_FORMAT_BYTES);
1697 segment.start = mdat_pos;
1698 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1700 return gst_qt_mux_send_mdat_header (qtmux, offset, mdat_size, TRUE,
1704 static GstFlowReturn
1705 gst_qt_mux_send_ftyp (GstQTMux * qtmux, guint64 * off)
1708 guint64 size = 0, offset = 0;
1709 guint8 *data = NULL;
1711 GST_DEBUG_OBJECT (qtmux, "Sending ftyp atom");
1713 if (!atom_ftyp_copy_data (qtmux->ftyp, &data, &size, &offset))
1714 goto serialize_error;
1716 buf = _gst_buffer_new_take_data (data, offset);
1718 GST_LOG_OBJECT (qtmux, "Pushing ftyp");
1719 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1724 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1725 ("Failed to serialize ftyp"));
1726 return GST_FLOW_ERROR;
1731 gst_qt_mux_prepare_ftyp (GstQTMux * qtmux, AtomFTYP ** p_ftyp,
1732 GstBuffer ** p_prefix)
1734 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1735 guint32 major, version;
1737 GstBuffer *prefix = NULL;
1738 AtomFTYP *ftyp = NULL;
1740 GST_DEBUG_OBJECT (qtmux, "Preparing ftyp and possible prefix atom");
1742 /* init and send context and ftyp based on current property state */
1743 gst_qt_mux_map_format_to_header (qtmux_klass->format, &prefix, &major,
1744 &version, &comp, qtmux->moov, qtmux->longest_chunk,
1745 qtmux->fast_start_file != NULL);
1746 ftyp = atom_ftyp_new (qtmux->context, major, version, comp);
1753 gst_buffer_unref (prefix);
1758 static GstFlowReturn
1759 gst_qt_mux_prepare_and_send_ftyp (GstQTMux * qtmux)
1761 GstFlowReturn ret = GST_FLOW_OK;
1762 GstBuffer *prefix = NULL;
1764 GST_DEBUG_OBJECT (qtmux, "Preparing to send ftyp atom");
1766 /* init and send context and ftyp based on current property state */
1768 atom_ftyp_free (qtmux->ftyp);
1771 gst_qt_mux_prepare_ftyp (qtmux, &qtmux->ftyp, &prefix);
1773 ret = gst_qt_mux_send_buffer (qtmux, prefix, &qtmux->header_size, FALSE);
1774 if (ret != GST_FLOW_OK)
1777 return gst_qt_mux_send_ftyp (qtmux, &qtmux->header_size);
1781 gst_qt_mux_set_header_on_caps (GstQTMux * mux, GstBuffer * buf)
1783 GstStructure *structure;
1784 GValue array = { 0 };
1785 GValue value = { 0 };
1786 GstCaps *caps, *tcaps;
1788 tcaps = gst_pad_get_current_caps (mux->srcpad);
1789 caps = gst_caps_copy (tcaps);
1790 gst_caps_unref (tcaps);
1792 structure = gst_caps_get_structure (caps, 0);
1794 g_value_init (&array, GST_TYPE_ARRAY);
1796 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
1797 g_value_init (&value, GST_TYPE_BUFFER);
1798 gst_value_take_buffer (&value, gst_buffer_ref (buf));
1799 gst_value_array_append_value (&array, &value);
1800 g_value_unset (&value);
1802 gst_structure_set_value (structure, "streamheader", &array);
1803 g_value_unset (&array);
1804 gst_pad_set_caps (mux->srcpad, caps);
1805 gst_caps_unref (caps);
1809 * Write out a free space atom. The offset is adjusted by the full
1810 * size, but a smaller buffer is sent
1812 static GstFlowReturn
1813 gst_qt_mux_send_free_atom (GstQTMux * qtmux, guint64 * off, guint32 size,
1814 gboolean fsync_after)
1818 guint8 *data = NULL;
1819 guint64 offset = 0, bsize = 0;
1822 GST_DEBUG_OBJECT (qtmux, "Sending free atom header of size %u", size);
1824 /* We can't make a free space atom smaller than the header */
1828 node_header = g_malloc0 (sizeof (Atom));
1829 node_header->type = FOURCC_free;
1830 node_header->size = size;
1833 if (atom_copy_data (node_header, &data, &bsize, &offset) == 0)
1834 goto serialize_error;
1836 buf = _gst_buffer_new_take_data (data, offset);
1837 g_free (node_header);
1840 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1842 GST_LOG_OBJECT (qtmux, "Pushing free atom");
1843 ret = gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1850 /* Make sure downstream position ends up at the end of this free box */
1851 gst_segment_init (&segment, GST_FORMAT_BYTES);
1852 segment.start = *off;
1853 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1861 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1862 ("Not enough free reserved space"));
1863 return GST_FLOW_ERROR;
1867 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1868 ("Failed to serialize mdat"));
1869 g_free (node_header);
1870 return GST_FLOW_ERROR;
1875 gst_qt_mux_configure_moov (GstQTMux * qtmux)
1877 gboolean fragmented = FALSE;
1880 GST_OBJECT_LOCK (qtmux);
1881 timescale = qtmux->timescale;
1882 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED ||
1883 qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE)
1885 GST_OBJECT_UNLOCK (qtmux);
1887 /* inform lower layers of our property wishes, and determine duration.
1888 * Let moov take care of this using its list of traks;
1889 * so that released pads are also included */
1890 GST_DEBUG_OBJECT (qtmux, "Updating timescale to %" G_GUINT32_FORMAT,
1892 atom_moov_update_timescale (qtmux->moov, timescale);
1893 atom_moov_set_fragmented (qtmux->moov, fragmented);
1895 atom_moov_update_duration (qtmux->moov);
1898 static GstFlowReturn
1899 gst_qt_mux_send_moov (GstQTMux * qtmux, guint64 * _offset,
1900 guint64 padded_moov_size, gboolean mind_fast, gboolean fsync_after)
1902 guint64 offset = 0, size = 0;
1905 GstFlowReturn ret = GST_FLOW_OK;
1907 /* serialize moov */
1910 GST_LOG_OBJECT (qtmux, "Copying movie header into buffer");
1911 if (!atom_moov_copy_data (qtmux->moov, &data, &size, &offset))
1912 goto serialize_error;
1913 qtmux->last_moov_size = offset;
1915 /* Check we have enough reserved space for this and a Free atom */
1916 if (padded_moov_size > 0 && offset + 8 > padded_moov_size)
1917 goto too_small_reserved;
1918 buf = _gst_buffer_new_take_data (data, offset);
1919 GST_DEBUG_OBJECT (qtmux, "Pushing moov atoms");
1921 /* If at EOS, this is the final moov, put in the streamheader
1922 * (apparently used by a flumotion util) */
1923 if (qtmux->state == GST_QT_MUX_STATE_EOS)
1924 gst_qt_mux_set_header_on_caps (qtmux, buf);
1927 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1928 ret = gst_qt_mux_send_buffer (qtmux, buf, _offset, mind_fast);
1930 /* Write out a free atom if needed */
1931 if (ret == GST_FLOW_OK && offset < padded_moov_size) {
1932 GST_LOG_OBJECT (qtmux, "Writing out free atom of size %u",
1933 (guint32) (padded_moov_size - offset));
1935 gst_qt_mux_send_free_atom (qtmux, _offset, padded_moov_size - offset,
1942 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
1943 ("Not enough free reserved header space"),
1944 ("Needed %" G_GUINT64_FORMAT " bytes, reserved %" G_GUINT64_FORMAT,
1945 offset, padded_moov_size));
1946 return GST_FLOW_ERROR;
1951 return GST_FLOW_ERROR;
1955 /* either calculates size of extra atoms or pushes them */
1956 static GstFlowReturn
1957 gst_qt_mux_send_extra_atoms (GstQTMux * qtmux, gboolean send, guint64 * offset,
1961 guint64 loffset = 0, size = 0;
1963 GstFlowReturn ret = GST_FLOW_OK;
1965 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
1966 AtomInfo *ainfo = (AtomInfo *) walk->data;
1970 if (!ainfo->copy_data_func (ainfo->atom,
1971 send ? &data : NULL, &size, &loffset))
1972 goto serialize_error;
1977 GST_DEBUG_OBJECT (qtmux,
1978 "Pushing extra top-level atom %" GST_FOURCC_FORMAT,
1979 GST_FOURCC_ARGS (ainfo->atom->type));
1980 buf = _gst_buffer_new_take_data (data, loffset);
1981 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
1982 if (ret != GST_FLOW_OK)
1995 return GST_FLOW_ERROR;
2000 gst_qt_mux_downstream_is_seekable (GstQTMux * qtmux)
2002 gboolean seekable = FALSE;
2003 GstQuery *query = gst_query_new_seeking (GST_FORMAT_BYTES);
2005 if (gst_pad_peer_query (qtmux->srcpad, query)) {
2006 gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
2007 GST_INFO_OBJECT (qtmux, "downstream is %sseekable", seekable ? "" : "not ");
2009 /* have to assume seeking is not supported if query not handled downstream */
2010 GST_WARNING_OBJECT (qtmux, "downstream did not handle seeking query");
2013 gst_query_unref (query);
2019 gst_qt_mux_prepare_moov_recovery (GstQTMux * qtmux)
2022 gboolean fail = FALSE;
2023 AtomFTYP *ftyp = NULL;
2024 GstBuffer *prefix = NULL;
2026 GST_DEBUG_OBJECT (qtmux, "Openning moov recovery file: %s",
2027 qtmux->moov_recov_file_path);
2029 qtmux->moov_recov_file = g_fopen (qtmux->moov_recov_file_path, "wb+");
2030 if (qtmux->moov_recov_file == NULL) {
2031 GST_WARNING_OBJECT (qtmux, "Failed to open moov recovery file in %s",
2032 qtmux->moov_recov_file_path);
2036 gst_qt_mux_prepare_ftyp (qtmux, &ftyp, &prefix);
2038 if (!atoms_recov_write_headers (qtmux->moov_recov_file, ftyp, prefix,
2039 qtmux->moov, qtmux->timescale, g_slist_length (qtmux->sinkpads))) {
2040 GST_WARNING_OBJECT (qtmux, "Failed to write moov recovery file " "headers");
2044 atom_ftyp_free (ftyp);
2046 gst_buffer_unref (prefix);
2048 for (walk = qtmux->sinkpads; walk && !fail; walk = g_slist_next (walk)) {
2049 GstCollectData *cdata = (GstCollectData *) walk->data;
2050 GstQTPad *qpad = (GstQTPad *) cdata;
2051 /* write info for each stream */
2052 fail = atoms_recov_write_trak_info (qtmux->moov_recov_file, qpad->trak);
2054 GST_WARNING_OBJECT (qtmux, "Failed to write trak info to recovery "
2062 fclose (qtmux->moov_recov_file);
2063 qtmux->moov_recov_file = NULL;
2064 GST_WARNING_OBJECT (qtmux, "An error was detected while writing to "
2065 "recover file, moov recovery won't work");
2068 static GstFlowReturn
2069 gst_qt_mux_start_file (GstQTMux * qtmux)
2071 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
2072 GstFlowReturn ret = GST_FLOW_OK;
2076 GstClockTime reserved_max_duration;
2077 guint reserved_bytes_per_sec_per_trak;
2079 GST_DEBUG_OBJECT (qtmux, "starting file");
2081 GST_OBJECT_LOCK (qtmux);
2082 reserved_max_duration = qtmux->reserved_max_duration;
2083 reserved_bytes_per_sec_per_trak = qtmux->reserved_bytes_per_sec_per_trak;
2084 GST_OBJECT_UNLOCK (qtmux);
2086 /* stream-start (FIXME: create id based on input ids) */
2087 g_snprintf (s_id, sizeof (s_id), "qtmux-%08x", g_random_int ());
2088 gst_pad_push_event (qtmux->srcpad, gst_event_new_stream_start (s_id));
2090 caps = gst_caps_copy (gst_pad_get_pad_template_caps (qtmux->srcpad));
2091 /* qtmux has structure with and without variant, remove all but the first */
2092 while (gst_caps_get_size (caps) > 1)
2093 gst_caps_remove_structure (caps, 1);
2094 gst_pad_set_caps (qtmux->srcpad, caps);
2095 gst_caps_unref (caps);
2097 /* Default is 'normal' mode */
2098 qtmux->mux_mode = GST_QT_MUX_MODE_MOOV_AT_END;
2100 /* Require a sensible fragment duration when muxing
2101 * using the ISML muxer */
2102 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML &&
2103 qtmux->fragment_duration == 0)
2106 if (qtmux->fragment_duration > 0) {
2107 if (qtmux->streamable)
2108 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE;
2110 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED;
2111 } else if (qtmux->fast_start) {
2112 qtmux->mux_mode = GST_QT_MUX_MODE_FAST_START;
2113 } else if (reserved_max_duration != GST_CLOCK_TIME_NONE) {
2114 qtmux->mux_mode = GST_QT_MUX_MODE_ROBUST_RECORDING;
2117 switch (qtmux->mux_mode) {
2118 case GST_QT_MUX_MODE_MOOV_AT_END:
2119 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2120 /* We have to be able to seek to rewrite the mdat header, or any
2121 * moov atom we write will not be visible in the file, because an
2122 * MDAT with 0 as the size covers the rest of the file. A file
2123 * with no moov is not playable, so error out now. */
2124 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2125 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2126 ("Downstream is not seekable - will not be able to create a playable file"),
2128 return GST_FLOW_ERROR;
2131 case GST_QT_MUX_MODE_FAST_START:
2132 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2133 break; /* Don't need seekability, ignore */
2134 case GST_QT_MUX_MODE_FRAGMENTED:
2135 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2136 GST_WARNING_OBJECT (qtmux, "downstream is not seekable, but "
2137 "streamable=false. Will ignore that and create streamable output "
2139 qtmux->streamable = TRUE;
2140 g_object_notify (G_OBJECT (qtmux), "streamable");
2145 /* let downstream know we think in BYTES and expect to do seeking later on */
2146 gst_segment_init (&segment, GST_FORMAT_BYTES);
2147 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2149 /* initialize our moov recovery file */
2150 GST_OBJECT_LOCK (qtmux);
2151 if (qtmux->moov_recov_file_path) {
2152 gst_qt_mux_prepare_moov_recovery (qtmux);
2155 /* Make sure the first time we update the moov, we'll
2156 * include any tagsetter tags */
2157 qtmux->tags_changed = TRUE;
2159 GST_OBJECT_UNLOCK (qtmux);
2162 * send mdat header if already needed, and mark position for later update.
2163 * We don't send ftyp now if we are on fast start mode, because we can
2164 * better fine tune using the information we gather to create the whole moov
2167 switch (qtmux->mux_mode) {
2168 case GST_QT_MUX_MODE_MOOV_AT_END:
2169 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2170 if (ret != GST_FLOW_OK)
2173 /* Store this as the mdat offset for later updating
2174 * when we write the moov */
2175 qtmux->mdat_pos = qtmux->header_size;
2176 /* extended atom in case we go over 4GB while writing and need
2177 * the full 64-bit atom */
2179 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2182 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2184 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2185 if (ret != GST_FLOW_OK)
2188 /* Pad ftyp out to an 8-byte boundary before starting the moov
2189 * ping pong region. It should be well less than 1 disk sector,
2190 * unless there's a bajillion compatible types listed,
2191 * but let's be sure the free atom doesn't cross a sector
2192 * boundary anyway */
2193 if (qtmux->header_size % 8) {
2194 /* Extra 8 bytes for the padding free atom header */
2195 guint padding = (guint) (16 - (qtmux->header_size % 8));
2196 GST_LOG_OBJECT (qtmux, "Rounding ftyp by %u bytes", padding);
2198 gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, padding,
2200 if (ret != GST_FLOW_OK)
2204 /* Store this as the moov offset for later updating.
2205 * We record mdat position below */
2206 qtmux->moov_pos = qtmux->header_size;
2208 /* Set up the initial 'ping' state of the ping-pong buffers */
2209 qtmux->reserved_moov_first_active = TRUE;
2211 gst_qt_mux_configure_moov (qtmux);
2212 gst_qt_mux_setup_metadata (qtmux);
2213 /* Empty free atom to begin, starting on an 8-byte boundary */
2214 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, 8, FALSE);
2215 if (ret != GST_FLOW_OK)
2217 /* Moov header, not padded yet */
2218 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2219 if (ret != GST_FLOW_OK)
2221 /* The moov we just sent contains the 'base' size of the moov, before
2222 * we put in any time-dependent per-trak data. Use that to make
2223 * a good estimate of how much extra to reserve */
2224 /* Calculate how much space to reserve for our MOOV atom.
2225 * We actually reserve twice that, for ping-pong buffers */
2226 qtmux->base_moov_size = qtmux->last_moov_size;
2227 GST_LOG_OBJECT (qtmux, "Base moov size is %u before any indexes",
2228 qtmux->base_moov_size);
2229 qtmux->reserved_moov_size = qtmux->base_moov_size +
2230 gst_util_uint64_scale (reserved_max_duration,
2231 reserved_bytes_per_sec_per_trak *
2232 atom_moov_get_trak_count (qtmux->moov), GST_SECOND);
2234 /* Need space for at least 4 atom headers. More really, but
2235 * this as an absolute minimum */
2236 if (qtmux->reserved_moov_size < 4 * 8)
2237 goto reserved_moov_too_small;
2239 GST_DEBUG_OBJECT (qtmux, "reserving header area of size %u",
2240 2 * qtmux->reserved_moov_size + 16);
2242 GST_OBJECT_LOCK (qtmux);
2243 qtmux->reserved_duration_remaining =
2244 gst_util_uint64_scale (qtmux->reserved_moov_size -
2245 qtmux->base_moov_size, GST_SECOND,
2246 reserved_bytes_per_sec_per_trak *
2247 atom_moov_get_trak_count (qtmux->moov));
2248 GST_OBJECT_UNLOCK (qtmux);
2250 /* Now that we know how much reserved space is targetted,
2251 * output a free atom to fill the extra reserved */
2252 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2253 qtmux->reserved_moov_size - qtmux->base_moov_size, FALSE);
2254 if (ret != GST_FLOW_OK)
2257 /* Then a free atom containing 'pong' buffer, with an
2258 * extra 8 bytes to account for the free atom header itself */
2259 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2260 qtmux->reserved_moov_size + 8, FALSE);
2261 if (ret != GST_FLOW_OK)
2264 /* extra atoms go after the free/moov(s), before the mdat */
2266 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2267 if (ret != GST_FLOW_OK)
2270 qtmux->mdat_pos = qtmux->header_size;
2271 /* extended atom in case we go over 4GB while writing and need
2272 * the full 64-bit atom */
2274 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2277 case GST_QT_MUX_MODE_FAST_START:
2278 GST_OBJECT_LOCK (qtmux);
2279 qtmux->fast_start_file = g_fopen (qtmux->fast_start_file_path, "wb+");
2280 if (!qtmux->fast_start_file)
2282 GST_OBJECT_UNLOCK (qtmux);
2283 /* send a dummy buffer for preroll */
2284 ret = gst_qt_mux_send_buffer (qtmux, gst_buffer_new (), NULL, FALSE);
2286 case GST_QT_MUX_MODE_FRAGMENTED:
2287 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2288 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2289 if (ret != GST_FLOW_OK)
2291 /* store the moov pos so we can update the duration later
2292 * in non-streamable mode */
2293 qtmux->moov_pos = qtmux->header_size;
2295 GST_DEBUG_OBJECT (qtmux, "fragment duration %d ms, writing headers",
2296 qtmux->fragment_duration);
2297 /* also used as snapshot marker to indicate fragmented file */
2298 qtmux->fragment_sequence = 1;
2299 /* prepare moov and/or tags */
2300 gst_qt_mux_configure_moov (qtmux);
2301 gst_qt_mux_setup_metadata (qtmux);
2302 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2303 if (ret != GST_FLOW_OK)
2307 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2308 if (ret != GST_FLOW_OK)
2310 /* prepare index if not streamable */
2311 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED)
2312 qtmux->mfra = atom_mfra_new (qtmux->context);
2320 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2321 ("Cannot create an ISML file with 0 fragment duration"), (NULL));
2322 return GST_FLOW_ERROR;
2324 reserved_moov_too_small:
2326 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2327 ("Not enough reserved space for creating headers"), (NULL));
2328 return GST_FLOW_ERROR;
2332 GST_ELEMENT_ERROR (qtmux, RESOURCE, OPEN_READ_WRITE,
2333 (("Could not open temporary file \"%s\""),
2334 qtmux->fast_start_file_path), GST_ERROR_SYSTEM);
2335 GST_OBJECT_UNLOCK (qtmux);
2336 return GST_FLOW_ERROR;
2340 static GstFlowReturn
2341 gst_qt_mux_send_last_buffers (GstQTMux * qtmux)
2343 GstFlowReturn ret = GST_FLOW_OK;
2346 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2347 GstCollectData *cdata = (GstCollectData *) walk->data;
2348 GstQTPad *qtpad = (GstQTPad *) cdata;
2350 /* avoid add_buffer complaining if not negotiated
2351 * in which case no buffers either, so skipping */
2352 if (!qtpad->fourcc) {
2353 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2354 GST_PAD_NAME (qtpad->collect.pad));
2358 /* send last buffer; also flushes possibly queued buffers/ts */
2359 GST_DEBUG_OBJECT (qtmux, "Sending the last buffer for pad %s",
2360 GST_PAD_NAME (qtpad->collect.pad));
2361 ret = gst_qt_mux_add_buffer (qtmux, qtpad, NULL);
2362 if (ret != GST_FLOW_OK) {
2363 GST_WARNING_OBJECT (qtmux, "Failed to send last buffer for %s, "
2364 "flow return: %s", GST_PAD_NAME (qtpad->collect.pad),
2365 gst_flow_get_name (ret));
2373 gst_qt_mux_update_global_statistics (GstQTMux * qtmux)
2377 /* for setting some subtitles fields */
2378 guint max_width = 0;
2379 guint max_height = 0;
2381 qtmux->first_ts = qtmux->last_dts = GST_CLOCK_TIME_NONE;
2383 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2384 GstCollectData *cdata = (GstCollectData *) walk->data;
2385 GstQTPad *qtpad = (GstQTPad *) cdata;
2387 if (!qtpad->fourcc) {
2388 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2389 GST_PAD_NAME (qtpad->collect.pad));
2393 /* having flushed above, can check for buffers now */
2394 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2395 /* determine max stream duration */
2396 if (!GST_CLOCK_TIME_IS_VALID (qtmux->last_dts)
2397 || qtpad->last_dts > qtmux->last_dts) {
2398 qtmux->last_dts = qtpad->last_dts;
2400 if (!GST_CLOCK_TIME_IS_VALID (qtmux->first_ts)
2401 || qtpad->first_ts < qtmux->first_ts) {
2402 qtmux->first_ts = qtpad->first_ts;
2406 /* subtitles need to know the video width/height,
2407 * it is stored shifted 16 bits to the left according to the
2409 max_width = MAX (max_width, (qtpad->trak->tkhd.width >> 16));
2410 max_height = MAX (max_height, (qtpad->trak->tkhd.height >> 16));
2412 /* update average bitrate of streams if needed */
2414 guint32 avgbitrate = 0;
2415 guint32 maxbitrate = qtpad->max_bitrate;
2417 if (qtpad->avg_bitrate)
2418 avgbitrate = qtpad->avg_bitrate;
2419 else if (qtpad->total_duration > 0)
2420 avgbitrate = (guint32) gst_util_uint64_scale_round (qtpad->total_bytes,
2421 8 * GST_SECOND, qtpad->total_duration);
2423 atom_trak_update_bitrates (qtpad->trak, avgbitrate, maxbitrate);
2427 /* need to update values on subtitle traks now that we know the
2428 * max width and height */
2429 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2430 GstCollectData *cdata = (GstCollectData *) walk->data;
2431 GstQTPad *qtpad = (GstQTPad *) cdata;
2433 if (!qtpad->fourcc) {
2434 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2435 GST_PAD_NAME (qtpad->collect.pad));
2439 if (qtpad->fourcc == FOURCC_tx3g) {
2440 atom_trak_tx3g_update_dimension (qtpad->trak, max_width, max_height);
2445 /* Called after gst_qt_mux_update_global_statistics() updates the
2446 * first_ts tracking, to create/set edit lists for delayed streams */
2448 gst_qt_mux_update_edit_lists (GstQTMux * qtmux)
2452 GST_DEBUG_OBJECT (qtmux, "Media first ts selected: %" GST_TIME_FORMAT,
2453 GST_TIME_ARGS (qtmux->first_ts));
2454 /* add/update EDTSs for late streams. configure_moov will have
2455 * set the trak durations above by summing the sample tables,
2456 * here we extend that if needing to insert an empty segment */
2457 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2458 GstCollectData *cdata = (GstCollectData *) walk->data;
2459 GstQTPad *qtpad = (GstQTPad *) cdata;
2461 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2462 guint32 lateness = 0;
2463 guint32 duration = qtpad->trak->tkhd.duration;
2466 has_gap = (qtpad->first_ts > (qtmux->first_ts + qtpad->dts_adjustment));
2471 diff = qtpad->first_ts - (qtmux->first_ts + qtpad->dts_adjustment);
2472 lateness = gst_util_uint64_scale_round (diff,
2473 qtmux->timescale, GST_SECOND);
2475 GST_DEBUG_OBJECT (qtmux, "Pad %s is a late stream by %" GST_TIME_FORMAT,
2476 GST_PAD_NAME (qtpad->collect.pad), GST_TIME_ARGS (lateness));
2478 atom_trak_set_elst_entry (qtpad->trak, 0, lateness, (guint32) - 1,
2479 (guint32) (1 * 65536.0));
2483 if (has_gap || (qtpad->dts_adjustment > 0)) {
2484 GstClockTime ctts = 0;
2485 guint32 media_start;
2487 if (qtpad->first_ts > qtpad->first_dts)
2488 ctts = qtpad->first_ts - qtpad->first_dts;
2490 media_start = gst_util_uint64_scale_round (ctts,
2491 atom_trak_get_timescale (qtpad->trak), GST_SECOND);
2493 atom_trak_set_elst_entry (qtpad->trak, 1, duration, media_start,
2494 (guint32) (1 * 65536.0));
2497 /* need to add the empty time to the trak duration */
2498 duration += lateness;
2500 qtpad->trak->tkhd.duration = duration;
2502 /* And possibly grow the moov duration */
2503 if (duration > qtmux->moov->mvhd.time_info.duration) {
2504 qtmux->moov->mvhd.time_info.duration = duration;
2505 qtmux->moov->mvex.mehd.fragment_duration = duration;
2511 static GstFlowReturn
2512 gst_qt_mux_stop_file (GstQTMux * qtmux)
2514 gboolean ret = GST_FLOW_OK;
2515 guint64 offset = 0, size = 0;
2516 gboolean large_file;
2518 GST_DEBUG_OBJECT (qtmux, "Updating remaining values and sending last data");
2520 /* pushing last buffers for each pad */
2521 if ((ret = gst_qt_mux_send_last_buffers (qtmux)) != GST_FLOW_OK)
2524 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) {
2525 /* Streamable mode; no need to write duration or MFRA */
2526 GST_DEBUG_OBJECT (qtmux, "streamable file; nothing to stop");
2530 gst_qt_mux_update_global_statistics (qtmux);
2532 switch (qtmux->mux_mode) {
2533 case GST_QT_MUX_MODE_FRAGMENTED:{
2535 guint8 *data = NULL;
2539 GST_DEBUG_OBJECT (qtmux, "adding mfra");
2540 if (!atom_mfra_copy_data (qtmux->mfra, &data, &size, &offset))
2541 goto serialize_error;
2542 buf = _gst_buffer_new_take_data (data, offset);
2543 ret = gst_qt_mux_send_buffer (qtmux, buf, NULL, FALSE);
2544 if (ret != GST_FLOW_OK)
2547 /* only mvex duration is updated,
2548 * mvhd should be consistent with empty moov
2549 * (but TODO maybe some clients do not handle that well ?) */
2550 qtmux->moov->mvex.mehd.fragment_duration =
2551 gst_util_uint64_scale (qtmux->last_dts, qtmux->timescale, GST_SECOND);
2552 GST_DEBUG_OBJECT (qtmux, "rewriting moov with mvex duration %"
2553 GST_TIME_FORMAT, GST_TIME_ARGS (qtmux->last_dts));
2554 /* seek and rewrite the header */
2555 gst_segment_init (&segment, GST_FORMAT_BYTES);
2556 segment.start = qtmux->moov_pos;
2557 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2558 /* no need to seek back */
2559 return gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2561 case GST_QT_MUX_MODE_ROBUST_RECORDING:{
2562 ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
2563 if (G_UNLIKELY (ret != GST_FLOW_OK))
2565 /* Finalise by writing the final size into the mdat. Up until now
2566 * it's been 0, which means 'rest of the file'
2567 * No need to seek back after this, we won't write any more */
2568 return gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2569 qtmux->mdat_size, NULL, TRUE);
2575 /* Moov-at-end or fast-start mode from here down */
2576 gst_qt_mux_configure_moov (qtmux);
2578 gst_qt_mux_update_edit_lists (qtmux);
2580 /* tags into file metadata */
2581 gst_qt_mux_setup_metadata (qtmux);
2583 large_file = (qtmux->mdat_size > MDAT_LARGE_FILE_LIMIT);
2585 switch (qtmux->mux_mode) {
2586 case GST_QT_MUX_MODE_FAST_START:{
2587 /* if faststart, update the offset of the atoms in the movie with the offset
2588 * that the movie headers before mdat will cause.
2589 * Also, send the ftyp */
2592 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2593 if (ret != GST_FLOW_OK) {
2596 /* copy into NULL to obtain size */
2597 if (!atom_moov_copy_data (qtmux->moov, NULL, &size, &offset))
2598 goto serialize_error;
2599 GST_DEBUG_OBJECT (qtmux, "calculated moov atom size %" G_GUINT64_FORMAT,
2601 offset += qtmux->header_size + (large_file ? 16 : 8);
2603 /* sum up with the extra atoms size */
2604 ret = gst_qt_mux_send_extra_atoms (qtmux, FALSE, &offset, FALSE);
2605 if (ret != GST_FLOW_OK)
2610 offset = qtmux->header_size;
2614 /* Now that we know the size of moov + extra atoms, we can adjust
2615 * the chunk offsets stored into the moov */
2616 atom_moov_chunks_set_offset (qtmux->moov, offset);
2618 /* write out moov and extra atoms */
2619 /* note: as of this point, we no longer care about tracking written data size,
2620 * since there is no more use for it anyway */
2621 ret = gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2622 if (ret != GST_FLOW_OK)
2626 ret = gst_qt_mux_send_extra_atoms (qtmux, TRUE, NULL, FALSE);
2627 if (ret != GST_FLOW_OK)
2630 switch (qtmux->mux_mode) {
2631 case GST_QT_MUX_MODE_MOOV_AT_END:
2633 /* mdat needs update iff not using faststart */
2634 GST_DEBUG_OBJECT (qtmux, "updating mdat size");
2635 ret = gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2636 qtmux->mdat_size, NULL, FALSE);
2637 /* note; no seeking back to the end of file is done,
2638 * since we no longer write anything anyway */
2641 case GST_QT_MUX_MODE_FAST_START:
2643 /* send mdat atom and move buffered data into it */
2644 /* mdat_size = accumulated (buffered data) */
2645 ret = gst_qt_mux_send_mdat_header (qtmux, NULL, qtmux->mdat_size,
2647 if (ret != GST_FLOW_OK)
2649 ret = gst_qt_mux_send_buffered_data (qtmux, NULL);
2650 if (ret != GST_FLOW_OK)
2655 g_assert_not_reached ();
2663 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
2664 ("Failed to serialize moov"));
2665 return GST_FLOW_ERROR;
2669 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Failed to send ftyp"));
2670 return GST_FLOW_ERROR;
2674 static GstFlowReturn
2675 gst_qt_mux_pad_fragment_add_buffer (GstQTMux * qtmux, GstQTPad * pad,
2676 GstBuffer * buf, gboolean force, guint32 nsamples, gint64 dts,
2677 guint32 delta, guint32 size, gboolean sync, gint64 pts_offset)
2679 GstFlowReturn ret = GST_FLOW_OK;
2681 /* setup if needed */
2682 if (G_UNLIKELY (!pad->traf || force))
2686 /* flush pad fragment if threshold reached,
2687 * or at new keyframe if we should be minding those in the first place */
2688 if (G_UNLIKELY (force || (sync && pad->sync) ||
2689 pad->fragment_duration < (gint64) delta)) {
2691 guint64 size = 0, offset = 0;
2692 guint8 *data = NULL;
2694 guint i, total_size;
2696 /* now we know where moof ends up, update offset in tfra */
2698 atom_tfra_update_offset (pad->tfra, qtmux->header_size);
2700 moof = atom_moof_new (qtmux->context, qtmux->fragment_sequence);
2701 /* takes ownership */
2702 atom_moof_add_traf (moof, pad->traf);
2704 atom_moof_copy_data (moof, &data, &size, &offset);
2705 buffer = _gst_buffer_new_take_data (data, offset);
2706 GST_LOG_OBJECT (qtmux, "writing moof size %" G_GSIZE_FORMAT,
2707 gst_buffer_get_size (buffer));
2708 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->header_size, FALSE);
2710 /* and actual data */
2712 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2714 gst_buffer_get_size (atom_array_index (&pad->fragment_buffers, i));
2717 GST_LOG_OBJECT (qtmux, "writing %d buffers, total_size %d",
2718 atom_array_get_len (&pad->fragment_buffers), total_size);
2719 if (ret == GST_FLOW_OK)
2720 ret = gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, total_size,
2722 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2723 if (G_LIKELY (ret == GST_FLOW_OK))
2724 ret = gst_qt_mux_send_buffer (qtmux,
2725 atom_array_index (&pad->fragment_buffers, i), &qtmux->header_size,
2728 gst_buffer_unref (atom_array_index (&pad->fragment_buffers, i));
2731 atom_array_clear (&pad->fragment_buffers);
2732 atom_moof_free (moof);
2733 qtmux->fragment_sequence++;
2738 if (G_UNLIKELY (!pad->traf)) {
2739 GST_LOG_OBJECT (qtmux, "setting up new fragment");
2740 pad->traf = atom_traf_new (qtmux->context, atom_trak_get_id (pad->trak));
2741 atom_array_init (&pad->fragment_buffers, 512);
2742 pad->fragment_duration = gst_util_uint64_scale (qtmux->fragment_duration,
2743 atom_trak_get_timescale (pad->trak), 1000);
2745 if (G_UNLIKELY (qtmux->mfra && !pad->tfra)) {
2746 pad->tfra = atom_tfra_new (qtmux->context, atom_trak_get_id (pad->trak));
2747 atom_mfra_add_tfra (qtmux->mfra, pad->tfra);
2751 /* add buffer and metadata */
2752 atom_traf_add_samples (pad->traf, delta, size, sync, pts_offset,
2754 atom_array_append (&pad->fragment_buffers, buf, 256);
2755 pad->fragment_duration -= delta;
2758 guint32 sn = atom_traf_get_sample_num (pad->traf);
2760 if ((sync && pad->sync) || (sn == 1 && !pad->sync))
2761 atom_tfra_add_entry (pad->tfra, dts, sn);
2764 if (G_UNLIKELY (force))
2770 /* Here's the clever bit of robust recording: Updating the moov
2771 * header is done using a ping-pong scheme inside 2 blocks of size
2772 * 'reserved_moov_size' at the start of the file, in such a way that the
2773 * file on-disk is always valid if interrupted.
2774 * Inside the reserved space, we have 2 pairs of free + moov atoms
2775 * (in that order), free-A + moov-A @ offset 0 and free-B + moov-B at
2776 * at offset "reserved_moov_size".
2778 * 1. Free-A has 0 size payload, moov-A immediately after is
2779 * active/current, and is padded with an internal Free atom to
2780 * end at reserved_space/2. Free-B is at reserved_space/2, sized
2781 * to cover the remaining free space (including moov-B).
2782 * 2. We write moov-B (which is invisible inside free-B), and pad it to
2783 * end at the end of free space. Then, we update free-A to size
2784 * reserved_space/2 + sizeof(free-B), which hides moov-A and the
2785 * free-B header, and makes moov-B active.
2786 * 3. Rewrite moov-A inside free-A, with padding out to free-B.
2787 * Change the size of free-A to make moov-A active again.
2788 * 4. Rinse and repeat.
2791 static GstFlowReturn
2792 gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux)
2796 guint64 freeA_offset;
2797 guint32 new_freeA_size;
2798 guint64 new_moov_offset;
2800 /* Update moov info, then seek and rewrite the MOOV atom */
2801 gst_qt_mux_update_global_statistics (qtmux);
2802 gst_qt_mux_configure_moov (qtmux);
2804 gst_qt_mux_update_edit_lists (qtmux);
2806 /* tags into file metadata */
2807 gst_qt_mux_setup_metadata (qtmux);
2809 /* chunks position is set relative to the first byte of the
2810 * MDAT atom payload. Set the overall offset into the file */
2811 atom_moov_chunks_set_offset (qtmux->moov, qtmux->header_size);
2813 /* Calculate which moov to rewrite. qtmux->moov_pos points to
2814 * the start of the free-A header */
2815 freeA_offset = qtmux->moov_pos;
2816 if (qtmux->reserved_moov_first_active) {
2817 GST_DEBUG_OBJECT (qtmux, "Updating pong moov header");
2818 /* After this, freeA will include itself, moovA, plus the freeB
2820 new_freeA_size = qtmux->reserved_moov_size + 16;
2822 GST_DEBUG_OBJECT (qtmux, "Updating ping moov header");
2825 /* the moov we update is after free-A, calculate its offset */
2826 new_moov_offset = freeA_offset + new_freeA_size;
2828 /* Swap ping-pong cadence marker */
2829 qtmux->reserved_moov_first_active = !qtmux->reserved_moov_first_active;
2831 /* seek and rewrite the MOOV atom */
2832 gst_segment_init (&segment, GST_FORMAT_BYTES);
2833 segment.start = new_moov_offset;
2834 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2837 gst_qt_mux_send_moov (qtmux, NULL, qtmux->reserved_moov_size, FALSE,
2839 if (ret != GST_FLOW_OK)
2842 /* Update the estimated recording space remaining, based on amount used so
2843 * far and duration muxed so far */
2844 if (qtmux->last_moov_size > qtmux->base_moov_size && qtmux->last_dts > 0) {
2845 GstClockTime remain;
2846 GstClockTime time_muxed = qtmux->last_dts;
2849 gst_util_uint64_scale (qtmux->reserved_moov_size -
2850 qtmux->last_moov_size, time_muxed,
2851 qtmux->last_moov_size - qtmux->base_moov_size);
2852 /* Always under-estimate slightly, so users
2853 * have time to stop muxing before we run out */
2854 if (remain < GST_SECOND / 2)
2857 remain -= GST_SECOND / 2;
2859 GST_INFO_OBJECT (qtmux,
2860 "Reserved %u header bytes. Used %u in %" GST_TIME_FORMAT
2861 ". Remaining now %u or approx %" G_GUINT64_FORMAT " ns\n",
2862 qtmux->reserved_moov_size, qtmux->last_moov_size,
2863 GST_TIME_ARGS (qtmux->last_dts),
2864 qtmux->reserved_moov_size - qtmux->last_moov_size, remain);
2866 GST_OBJECT_LOCK (qtmux);
2867 qtmux->reserved_duration_remaining = remain;
2868 qtmux->muxed_since_last_update = 0;
2869 GST_DEBUG_OBJECT (qtmux, "reserved remaining duration now %"
2870 G_GUINT64_FORMAT, qtmux->reserved_duration_remaining);
2871 GST_OBJECT_UNLOCK (qtmux);
2875 /* Now update the moov-A size. Don't pass offset, since we don't need
2876 * send_free_atom() to seek for us - all our callers seek back to
2877 * where they need after this, or they don't need it */
2878 gst_segment_init (&segment, GST_FORMAT_BYTES);
2879 segment.start = freeA_offset;
2880 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2882 ret = gst_qt_mux_send_free_atom (qtmux, NULL, new_freeA_size, TRUE);
2887 static GstFlowReturn
2888 gst_qt_mux_robust_recording_update (GstQTMux * qtmux, GstClockTime position)
2891 GstFlowReturn flow_ret;
2893 guint64 mdat_offset = qtmux->mdat_pos + 16 + qtmux->mdat_size;
2895 GST_OBJECT_LOCK (qtmux);
2896 if (qtmux->reserved_moov_update_period == GST_CLOCK_TIME_NONE) {
2897 GST_OBJECT_UNLOCK (qtmux);
2901 /* Update if position is > the threshold or there's been no update yet */
2902 if (qtmux->last_moov_update != GST_CLOCK_TIME_NONE &&
2903 (position <= qtmux->last_moov_update ||
2904 (position - qtmux->last_moov_update) <
2905 qtmux->reserved_moov_update_period)) {
2906 /* Update the offset of how much we've muxed, so the
2907 * report of remaining space keeps counting down */
2908 if (position > qtmux->last_moov_update &&
2909 position - qtmux->last_moov_update > qtmux->muxed_since_last_update) {
2910 GST_LOG_OBJECT (qtmux,
2911 "Muxed time %" G_GUINT64_FORMAT " since last moov update",
2912 qtmux->muxed_since_last_update);
2913 qtmux->muxed_since_last_update = position - qtmux->last_moov_update;
2915 GST_OBJECT_UNLOCK (qtmux);
2916 return GST_FLOW_OK; /* No update needed yet */
2919 qtmux->last_moov_update = position;
2920 GST_OBJECT_UNLOCK (qtmux);
2922 GST_DEBUG_OBJECT (qtmux, "Update moov atom, position %" GST_TIME_FORMAT
2923 " mdat starts @ %" G_GUINT64_FORMAT " we were a %" G_GUINT64_FORMAT,
2924 GST_TIME_ARGS (position), qtmux->mdat_pos, mdat_offset);
2926 flow_ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
2927 if (G_UNLIKELY (flow_ret != GST_FLOW_OK))
2930 /* Seek back to previous position */
2931 gst_segment_init (&segment, GST_FORMAT_BYTES);
2932 segment.start = mdat_offset;
2933 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2938 static GstFlowReturn
2939 gst_qt_mux_register_and_push_sample (GstQTMux * qtmux, GstQTPad * pad,
2940 GstBuffer * buffer, gboolean is_last_buffer, guint nsamples,
2941 gint64 last_dts, gint64 scaled_duration, guint sample_size,
2942 guint64 chunk_offset, gboolean sync, gboolean do_pts, gint64 pts_offset)
2944 GstFlowReturn ret = GST_FLOW_OK;
2946 /* note that a new chunk is started each time (not fancy but works) */
2947 if (qtmux->moov_recov_file) {
2948 if (!atoms_recov_write_trak_samples (qtmux->moov_recov_file, pad->trak,
2949 nsamples, (gint32) scaled_duration, sample_size, chunk_offset, sync,
2950 do_pts, pts_offset)) {
2951 GST_WARNING_OBJECT (qtmux, "Failed to write sample information to "
2952 "recovery file, disabling recovery");
2953 fclose (qtmux->moov_recov_file);
2954 qtmux->moov_recov_file = NULL;
2958 switch (qtmux->mux_mode) {
2959 case GST_QT_MUX_MODE_MOOV_AT_END:
2960 case GST_QT_MUX_MODE_FAST_START:
2961 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2962 atom_trak_add_samples (pad->trak, nsamples, (gint32) scaled_duration,
2963 sample_size, chunk_offset, sync, pts_offset);
2964 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->mdat_size, TRUE);
2965 /* Check if it's time to re-write the headers in robust-recording mode */
2966 if (ret == GST_FLOW_OK
2967 && qtmux->mux_mode == GST_QT_MUX_MODE_ROBUST_RECORDING)
2968 ret = gst_qt_mux_robust_recording_update (qtmux, pad->total_duration);
2970 case GST_QT_MUX_MODE_FRAGMENTED:
2971 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2972 /* ensure that always sync samples are marked as such */
2973 ret = gst_qt_mux_pad_fragment_add_buffer (qtmux, pad, buffer,
2974 is_last_buffer, nsamples, last_dts, (gint32) scaled_duration,
2975 sample_size, !pad->sync || sync, pts_offset);
2983 * Here we push the buffer and update the tables in the track atoms
2985 static GstFlowReturn
2986 gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad, GstBuffer * buf)
2988 GstBuffer *last_buf = NULL;
2989 GstClockTime duration;
2990 guint nsamples, sample_size;
2991 guint64 chunk_offset;
2992 gint64 last_dts, scaled_duration;
2993 gint64 pts_offset = 0;
2994 gboolean sync = FALSE;
2995 GstFlowReturn ret = GST_FLOW_OK;
2998 goto not_negotiated;
3000 /* if this pad has a prepare function, call it */
3001 if (pad->prepare_buf_func != NULL) {
3002 buf = pad->prepare_buf_func (pad, buf, qtmux);
3005 last_buf = pad->last_buf;
3007 /* DTS delta is used to calculate sample duration.
3008 * If buffer has missing DTS, we take either segment start or
3009 * previous buffer end time, whichever is later.
3010 * This must only be done for non sparse streams, sparse streams
3011 * can have gaps between buffers (which is handled later by adding
3012 * extra empty buffer with duration that fills the gap). */
3013 if (!pad->sparse && buf && !GST_BUFFER_DTS_IS_VALID (buf)) {
3014 GstClockTime last_buf_duration = last_buf
3015 && GST_BUFFER_DURATION_IS_VALID (last_buf) ?
3016 GST_BUFFER_DURATION (last_buf) : 0;
3018 buf = gst_buffer_make_writable (buf);
3019 GST_BUFFER_DTS (buf) = 0; /* running-time 0 */
3022 && (GST_BUFFER_DTS (last_buf) + last_buf_duration) >
3023 GST_BUFFER_DTS (buf)) {
3024 GST_BUFFER_DTS (buf) = GST_BUFFER_DTS (last_buf) + last_buf_duration;
3028 if (last_buf && !buf && !GST_BUFFER_DURATION_IS_VALID (last_buf)) {
3029 /* this is last buffer; there is no next buffer so we need valid number as duration */
3030 last_buf = gst_buffer_make_writable (last_buf);
3031 GST_BUFFER_DURATION (last_buf) = 0;
3034 if (last_buf == NULL) {
3035 #ifndef GST_DISABLE_GST_DEBUG
3037 GST_DEBUG_OBJECT (qtmux, "Pad %s has no previous buffer stored and "
3038 "received NULL buffer, doing nothing",
3039 GST_PAD_NAME (pad->collect.pad));
3041 GST_LOG_OBJECT (qtmux,
3042 "Pad %s has no previous buffer stored, storing now",
3043 GST_PAD_NAME (pad->collect.pad));
3046 pad->last_buf = buf;
3049 gst_buffer_ref (last_buf);
3051 /* if this is the first buffer, store the timestamp */
3052 if (G_UNLIKELY (pad->first_ts == GST_CLOCK_TIME_NONE) && last_buf) {
3053 if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3054 pad->first_ts = GST_BUFFER_PTS (last_buf);
3055 } else if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3056 pad->first_ts = GST_BUFFER_DTS (last_buf);
3059 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3060 pad->first_dts = pad->last_dts = GST_BUFFER_DTS (last_buf);
3061 } else if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3062 pad->first_dts = pad->last_dts = GST_BUFFER_PTS (last_buf);
3065 if (GST_CLOCK_TIME_IS_VALID (pad->first_ts)) {
3066 GST_DEBUG ("setting first_ts to %" G_GUINT64_FORMAT, pad->first_ts);
3068 GST_WARNING_OBJECT (qtmux, "First buffer for pad %s has no timestamp, "
3069 "using 0 as first timestamp", GST_PAD_NAME (pad->collect.pad));
3070 pad->first_ts = pad->first_dts = 0;
3072 GST_DEBUG_OBJECT (qtmux, "Stored first timestamp for pad %s %"
3073 GST_TIME_FORMAT, GST_PAD_NAME (pad->collect.pad),
3074 GST_TIME_ARGS (pad->first_ts));
3077 if (last_buf && buf && GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (buf)) &&
3078 GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (last_buf)) &&
3079 GST_BUFFER_DTS (buf) < GST_BUFFER_DTS (last_buf)) {
3080 GST_ERROR ("decreasing DTS value %" GST_TIME_FORMAT " < %" GST_TIME_FORMAT,
3081 GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
3082 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)));
3083 GST_BUFFER_DTS (buf) = GST_BUFFER_DTS (last_buf);
3086 /* duration actually means time delta between samples, so we calculate
3087 * the duration based on the difference in DTS or PTS, falling back
3088 * to DURATION if the other two don't exist, such as with the last
3089 * sample before EOS. */
3090 duration = GST_BUFFER_DURATION (last_buf);
3092 if (last_buf && buf && GST_BUFFER_DTS_IS_VALID (buf)
3093 && GST_BUFFER_DTS_IS_VALID (last_buf))
3094 duration = GST_BUFFER_DTS (buf) - GST_BUFFER_DTS (last_buf);
3095 else if (last_buf && buf && GST_BUFFER_PTS_IS_VALID (buf)
3096 && GST_BUFFER_PTS_IS_VALID (last_buf))
3097 duration = GST_BUFFER_PTS (buf) - GST_BUFFER_PTS (last_buf);
3100 gst_buffer_replace (&pad->last_buf, buf);
3102 /* for computing the avg bitrate */
3103 if (G_LIKELY (last_buf)) {
3104 pad->total_bytes += gst_buffer_get_size (last_buf);
3105 pad->total_duration += duration;
3108 last_dts = gst_util_uint64_scale_round (pad->last_dts,
3109 atom_trak_get_timescale (pad->trak), GST_SECOND);
3111 /* fragments only deal with 1 buffer == 1 chunk (== 1 sample) */
3112 if (pad->sample_size && !qtmux->fragment_sequence) {
3113 /* Constant size packets: usually raw audio (with many samples per
3114 buffer (= chunk)), but can also be fixed-packet-size codecs like ADPCM
3116 sample_size = pad->sample_size;
3117 if (gst_buffer_get_size (last_buf) % sample_size != 0)
3118 goto fragmented_sample;
3119 /* note: qt raw audio storage warps it implicitly into a timewise
3120 * perfect stream, discarding buffer times */
3121 if (GST_BUFFER_DURATION (last_buf) != GST_CLOCK_TIME_NONE) {
3122 nsamples = gst_util_uint64_scale_round (GST_BUFFER_DURATION (last_buf),
3123 atom_trak_get_timescale (pad->trak), GST_SECOND);
3125 nsamples = gst_buffer_get_size (last_buf) / sample_size;
3128 duration = GST_BUFFER_DURATION (last_buf) / nsamples;
3132 /* timescale = samplerate */
3133 scaled_duration = 1;
3134 pad->last_dts += duration * nsamples;
3137 sample_size = gst_buffer_get_size (last_buf);
3138 if ((pad->last_buf && GST_BUFFER_DTS_IS_VALID (pad->last_buf))
3139 || GST_BUFFER_DTS_IS_VALID (last_buf)) {
3141 if (pad->last_buf && GST_BUFFER_DTS_IS_VALID (pad->last_buf)) {
3142 pad->last_dts = GST_BUFFER_DTS (pad->last_buf);
3144 pad->last_dts = GST_BUFFER_DTS (last_buf) +
3145 GST_BUFFER_DURATION (last_buf);
3147 if ((gint64) (pad->last_dts) < 0) {
3148 scaled_dts = -gst_util_uint64_scale_round (-pad->last_dts,
3149 atom_trak_get_timescale (pad->trak), GST_SECOND);
3151 scaled_dts = gst_util_uint64_scale_round (pad->last_dts,
3152 atom_trak_get_timescale (pad->trak), GST_SECOND);
3154 scaled_duration = scaled_dts - last_dts;
3155 last_dts = scaled_dts;
3157 /* first convert intended timestamp (in GstClockTime resolution) to
3158 * trak timescale, then derive delta;
3159 * this ensures sums of (scale)delta add up to converted timestamp,
3160 * which only deviates at most 1/scale from timestamp itself */
3161 scaled_duration = gst_util_uint64_scale_round (pad->last_dts + duration,
3162 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts;
3163 pad->last_dts += duration;
3166 chunk_offset = qtmux->mdat_size;
3168 GST_LOG_OBJECT (qtmux,
3169 "Pad (%s) dts updated to %" GST_TIME_FORMAT,
3170 GST_PAD_NAME (pad->collect.pad), GST_TIME_ARGS (pad->last_dts));
3171 GST_LOG_OBJECT (qtmux,
3172 "Adding %d samples to track, duration: %" G_GUINT64_FORMAT
3173 " size: %" G_GUINT32_FORMAT " chunk offset: %" G_GUINT64_FORMAT,
3174 nsamples, scaled_duration, sample_size, chunk_offset);
3176 /* might be a sync sample */
3178 !GST_BUFFER_FLAG_IS_SET (last_buf, GST_BUFFER_FLAG_DELTA_UNIT)) {
3179 GST_LOG_OBJECT (qtmux, "Adding new sync sample entry for track of pad %s",
3180 GST_PAD_NAME (pad->collect.pad));
3184 if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (last_buf))) {
3185 last_dts = gst_util_uint64_scale_round (GST_BUFFER_DTS (last_buf),
3186 atom_trak_get_timescale (pad->trak), GST_SECOND);
3188 (gint64) (gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3189 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts);
3193 last_dts = gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3194 atom_trak_get_timescale (pad->trak), GST_SECOND);
3196 GST_DEBUG ("dts: %" GST_TIME_FORMAT " pts: %" GST_TIME_FORMAT
3197 " timebase_dts: %d pts_offset: %d",
3198 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)),
3199 GST_TIME_ARGS (GST_BUFFER_PTS (last_buf)),
3200 (int) (last_dts), (int) (pts_offset));
3203 * Each buffer starts a new chunk, so we can assume the buffer
3204 * duration is the chunk duration
3206 if (GST_CLOCK_TIME_IS_VALID (duration) && (duration > qtmux->longest_chunk ||
3207 !GST_CLOCK_TIME_IS_VALID (qtmux->longest_chunk))) {
3208 GST_DEBUG_OBJECT (qtmux, "New longest chunk found: %" GST_TIME_FORMAT
3209 ", pad %s", GST_TIME_ARGS (duration), GST_PAD_NAME (pad->collect.pad));
3210 qtmux->longest_chunk = duration;
3213 /* now we go and register this buffer/sample all over */
3214 ret = gst_qt_mux_register_and_push_sample (qtmux, pad, last_buf,
3215 buf == NULL, nsamples, last_dts, scaled_duration, sample_size,
3216 chunk_offset, sync, TRUE, pts_offset);
3218 /* if this is sparse and we have a next buffer, check if there is any gap
3219 * between them to insert an empty sample */
3220 if (pad->sparse && buf) {
3221 if (pad->create_empty_buffer) {
3222 GstBuffer *empty_buf;
3223 gint64 empty_duration =
3224 GST_BUFFER_TIMESTAMP (buf) - (GST_BUFFER_TIMESTAMP (last_buf) +
3226 gint64 empty_duration_scaled;
3228 empty_buf = pad->create_empty_buffer (pad, empty_duration);
3230 empty_duration_scaled = gst_util_uint64_scale_round (empty_duration,
3231 atom_trak_get_timescale (pad->trak), GST_SECOND);
3233 pad->total_bytes += gst_buffer_get_size (empty_buf);
3234 pad->total_duration += duration;
3237 gst_qt_mux_register_and_push_sample (qtmux, pad, empty_buf, FALSE, 1,
3238 last_dts + scaled_duration, empty_duration_scaled,
3239 gst_buffer_get_size (empty_buf), qtmux->mdat_size, sync, TRUE, 0);
3241 /* our only case currently is tx3g subtitles, so there is no reason to fill this yet */
3242 g_assert_not_reached ();
3243 GST_WARNING_OBJECT (qtmux,
3244 "no empty buffer creation function found for pad %s",
3245 GST_PAD_NAME (pad->collect.pad));
3250 gst_buffer_unref (buf);
3260 gst_buffer_unref (buf);
3261 gst_buffer_unref (last_buf);
3262 return GST_FLOW_ERROR;
3266 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
3267 ("Audio buffer contains fragmented sample."));
3272 GST_ELEMENT_ERROR (qtmux, CORE, NEGOTIATION, (NULL),
3273 ("format wasn't negotiated before buffer flow on pad %s",
3274 GST_PAD_NAME (pad->collect.pad)));
3276 gst_buffer_unref (buf);
3277 return GST_FLOW_NOT_NEGOTIATED;
3282 * DTS running time can be negative. There is no way to represent that in
3283 * MP4 however, thus we need to offset DTS so that it starts from 0.
3286 gst_qt_pad_adjust_buffer_dts (GstQTMux * qtmux, GstQTPad * pad,
3287 GstCollectData * cdata, GstBuffer ** buf)
3292 pts = GST_BUFFER_PTS (*buf);
3293 dts = GST_COLLECT_PADS_DTS (cdata);
3295 GST_LOG_OBJECT (qtmux, "selected pad %s with PTS %" GST_TIME_FORMAT
3296 " and DTS %" GST_STIME_FORMAT, GST_PAD_NAME (cdata->pad),
3297 GST_TIME_ARGS (pts), GST_STIME_ARGS (dts));
3299 if (!GST_CLOCK_TIME_IS_VALID (pad->dts_adjustment)) {
3300 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0)
3301 pad->dts_adjustment = -dts;
3303 pad->dts_adjustment = 0;
3306 if (pad->dts_adjustment > 0) {
3307 *buf = gst_buffer_make_writable (*buf);
3309 dts += pad->dts_adjustment;
3311 if (GST_CLOCK_TIME_IS_VALID (pts))
3312 pts += pad->dts_adjustment;
3314 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0) {
3315 GST_WARNING_OBJECT (pad, "Decreasing DTS.");
3320 GST_WARNING_OBJECT (pad, "DTS is bigger then PTS");
3324 GST_BUFFER_PTS (*buf) = pts;
3325 GST_BUFFER_DTS (*buf) = dts;
3327 GST_LOG_OBJECT (qtmux, "time adjusted to PTS %" GST_TIME_FORMAT
3328 " and DTS %" GST_TIME_FORMAT, GST_TIME_ARGS (pts), GST_TIME_ARGS (dts));
3332 static GstFlowReturn
3333 gst_qt_mux_handle_buffer (GstCollectPads * pads, GstCollectData * cdata,
3334 GstBuffer * buf, gpointer user_data)
3336 GstFlowReturn ret = GST_FLOW_OK;
3337 GstQTMux *qtmux = GST_QT_MUX_CAST (user_data);
3338 GstQTPad *best_pad = NULL;
3340 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_STARTED)) {
3341 if ((ret = gst_qt_mux_start_file (qtmux)) != GST_FLOW_OK)
3344 qtmux->state = GST_QT_MUX_STATE_DATA;
3347 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_EOS))
3348 return GST_FLOW_EOS;
3350 best_pad = (GstQTPad *) cdata;
3352 /* clipping already converted to running time */
3353 if (best_pad != NULL) {
3355 gst_qt_pad_adjust_buffer_dts (qtmux, best_pad, cdata, &buf);
3356 ret = gst_qt_mux_add_buffer (qtmux, best_pad, buf);
3358 qtmux->state = GST_QT_MUX_STATE_EOS;
3359 ret = gst_qt_mux_stop_file (qtmux);
3360 if (ret == GST_FLOW_OK) {
3361 GST_DEBUG_OBJECT (qtmux, "Pushing eos");
3362 gst_pad_push_event (qtmux->srcpad, gst_event_new_eos ());
3365 GST_WARNING_OBJECT (qtmux, "Failed to stop file: %s",
3366 gst_flow_get_name (ret));
3374 check_field (GQuark field_id, const GValue * value, gpointer user_data)
3376 GstStructure *structure = (GstStructure *) user_data;
3377 const GValue *other = gst_structure_id_get_value (structure, field_id);
3380 return gst_value_compare (value, other) == GST_VALUE_EQUAL;
3384 gst_qtmux_caps_is_subset_full (GstQTMux * qtmux, GstCaps * subset,
3387 GstStructure *sub_s = gst_caps_get_structure (subset, 0);
3388 GstStructure *sup_s = gst_caps_get_structure (superset, 0);
3390 return gst_structure_foreach (sub_s, check_field, sup_s);
3394 gst_qt_mux_audio_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
3396 GstPad *pad = qtpad->collect.pad;
3397 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
3398 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
3399 GstStructure *structure;
3400 const gchar *mimetype;
3401 gint rate, channels;
3402 const GValue *value = NULL;
3403 const GstBuffer *codec_data = NULL;
3404 GstQTMuxFormat format;
3405 AudioSampleEntry entry = { 0, };
3406 AtomInfo *ext_atom = NULL;
3407 gint constant_size = 0;
3408 const gchar *stream_format;
3410 qtpad->prepare_buf_func = NULL;
3412 /* does not go well to renegotiate stream mid-way, unless
3413 * the old caps are a subset of the new one (this means upstream
3414 * added more info to the caps, as both should be 'fixed' caps) */
3415 if (qtpad->fourcc) {
3416 GstCaps *current_caps;
3418 current_caps = gst_pad_get_current_caps (pad);
3419 g_assert (caps != NULL);
3421 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
3422 gst_caps_unref (current_caps);
3423 goto refuse_renegotiation;
3425 GST_DEBUG_OBJECT (qtmux,
3426 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
3427 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
3428 gst_caps_unref (current_caps);
3431 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
3432 GST_DEBUG_PAD_NAME (pad), caps);
3434 format = qtmux_klass->format;
3435 structure = gst_caps_get_structure (caps, 0);
3436 mimetype = gst_structure_get_name (structure);
3439 if (!gst_structure_get_int (structure, "channels", &channels) ||
3440 !gst_structure_get_int (structure, "rate", &rate)) {
3445 value = gst_structure_get_value (structure, "codec_data");
3447 codec_data = gst_value_get_buffer (value);
3449 qtpad->is_out_of_order = FALSE;
3451 /* set common properties */
3452 entry.sample_rate = rate;
3453 entry.channels = channels;
3455 entry.sample_size = 16;
3456 /* this is the typical compressed case */
3457 if (format == GST_QT_MUX_FORMAT_QT) {
3459 entry.compression_id = -2;
3462 /* now map onto a fourcc, and some extra properties */
3463 if (strcmp (mimetype, "audio/mpeg") == 0) {
3464 gint mpegversion = 0;
3467 gst_structure_get_int (structure, "mpegversion", &mpegversion);
3468 switch (mpegversion) {
3470 gst_structure_get_int (structure, "layer", &layer);
3474 /* note: QuickTime player does not like mp3 either way in iso/mp4 */
3475 if (format == GST_QT_MUX_FORMAT_QT)
3476 entry.fourcc = FOURCC__mp3;
3478 entry.fourcc = FOURCC_mp4a;
3480 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG1_P3,
3481 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3482 qtpad->max_bitrate);
3484 entry.samples_per_packet = 1152;
3485 entry.bytes_per_sample = 2;
3491 /* check stream-format */
3492 stream_format = gst_structure_get_string (structure, "stream-format");
3493 if (stream_format) {
3494 if (strcmp (stream_format, "raw") != 0) {
3495 GST_WARNING_OBJECT (qtmux, "Unsupported AAC stream-format %s, "
3496 "please use 'raw'", stream_format);
3500 GST_WARNING_OBJECT (qtmux, "No stream-format present in caps, "
3504 if (!codec_data || gst_buffer_get_size ((GstBuffer *) codec_data) < 2)
3505 GST_WARNING_OBJECT (qtmux, "no (valid) codec_data for AAC audio");
3509 gst_buffer_extract ((GstBuffer *) codec_data, 0, &profile, 1);
3510 /* warn if not Low Complexity profile */
3513 GST_WARNING_OBJECT (qtmux,
3514 "non-LC AAC may not run well on (Apple) QuickTime/iTunes");
3518 entry.fourcc = FOURCC_mp4a;
3520 if (format == GST_QT_MUX_FORMAT_QT)
3521 ext_atom = build_mov_aac_extension (qtpad->trak, codec_data,
3522 qtpad->avg_bitrate, qtpad->max_bitrate);
3525 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P3,
3526 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3527 qtpad->max_bitrate);
3532 } else if (strcmp (mimetype, "audio/AMR") == 0) {
3533 entry.fourcc = FOURCC_samr;
3534 entry.sample_size = 16;
3535 entry.samples_per_packet = 160;
3536 entry.bytes_per_sample = 2;
3537 ext_atom = build_amr_extension ();
3538 } else if (strcmp (mimetype, "audio/AMR-WB") == 0) {
3539 entry.fourcc = FOURCC_sawb;
3540 entry.sample_size = 16;
3541 entry.samples_per_packet = 320;
3542 entry.bytes_per_sample = 2;
3543 ext_atom = build_amr_extension ();
3544 } else if (strcmp (mimetype, "audio/x-raw") == 0) {
3547 gst_audio_info_init (&info);
3548 if (!gst_audio_info_from_caps (&info, caps))
3551 /* spec has no place for a distinction in these */
3552 if (info.finfo->width != info.finfo->depth) {
3553 GST_DEBUG_OBJECT (qtmux, "width must be same as depth!");
3557 if ((info.finfo->flags & GST_AUDIO_FORMAT_FLAG_SIGNED)) {
3558 if (info.finfo->endianness == G_LITTLE_ENDIAN)
3559 entry.fourcc = FOURCC_sowt;
3560 else if (info.finfo->endianness == G_BIG_ENDIAN)
3561 entry.fourcc = FOURCC_twos;
3563 entry.fourcc = FOURCC_sowt;
3564 /* maximum backward compatibility; only new version for > 16 bit */
3565 if (info.finfo->depth <= 16)
3567 /* not compressed in any case */
3568 entry.compression_id = 0;
3569 /* QT spec says: max at 16 bit even if sample size were actually larger,
3570 * however, most players (e.g. QuickTime!) seem to disagree, so ... */
3571 entry.sample_size = info.finfo->depth;
3572 entry.bytes_per_sample = info.finfo->depth / 8;
3573 entry.samples_per_packet = 1;
3574 entry.bytes_per_packet = info.finfo->depth / 8;
3575 entry.bytes_per_frame = entry.bytes_per_packet * info.channels;
3577 if (info.finfo->width == 8 && info.finfo->depth == 8) {
3578 /* fall back to old 8-bit version */
3579 entry.fourcc = FOURCC_raw_;
3581 entry.compression_id = 0;
3582 entry.sample_size = 8;
3584 GST_DEBUG_OBJECT (qtmux, "non 8-bit PCM must be signed");
3588 constant_size = (info.finfo->depth / 8) * info.channels;
3589 } else if (strcmp (mimetype, "audio/x-alaw") == 0) {
3590 entry.fourcc = FOURCC_alaw;
3591 entry.samples_per_packet = 1023;
3592 entry.bytes_per_sample = 2;
3593 } else if (strcmp (mimetype, "audio/x-mulaw") == 0) {
3594 entry.fourcc = FOURCC_ulaw;
3595 entry.samples_per_packet = 1023;
3596 entry.bytes_per_sample = 2;
3597 } else if (strcmp (mimetype, "audio/x-adpcm") == 0) {
3599 if (!gst_structure_get_int (structure, "block_align", &blocksize)) {
3600 GST_DEBUG_OBJECT (qtmux, "broken caps, block_align missing");
3603 /* Currently only supports WAV-style IMA ADPCM, for which the codec id is
3605 entry.fourcc = MS_WAVE_FOURCC (0x11);
3606 /* 4 byte header per channel (including one sample). 2 samples per byte
3607 remaining. Simplifying gives the following (samples per block per
3609 entry.samples_per_packet = 2 * blocksize / channels - 7;
3610 entry.bytes_per_sample = 2;
3612 entry.bytes_per_frame = blocksize;
3613 entry.bytes_per_packet = blocksize / channels;
3614 /* ADPCM has constant size packets */
3616 /* TODO: I don't really understand why this helps, but it does! Constant
3617 * size and compression_id of -2 seem to be incompatible, and other files
3618 * in the wild use this too. */
3619 entry.compression_id = -1;
3621 ext_atom = build_ima_adpcm_extension (channels, rate, blocksize);
3622 } else if (strcmp (mimetype, "audio/x-alac") == 0) {
3623 GstBuffer *codec_config;
3627 entry.fourcc = FOURCC_alac;
3628 gst_buffer_map ((GstBuffer *) codec_data, &map, GST_MAP_READ);
3629 /* let's check if codec data already comes with 'alac' atom prefix */
3630 if (!codec_data || (len = map.size) < 28) {
3631 GST_DEBUG_OBJECT (qtmux, "broken caps, codec data missing");
3632 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3635 if (GST_READ_UINT32_LE (map.data + 4) == FOURCC_alac) {
3638 gst_buffer_copy_region ((GstBuffer *) codec_data,
3639 GST_BUFFER_COPY_MEMORY, 8, len);
3641 codec_config = gst_buffer_ref ((GstBuffer *) codec_data);
3643 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3645 /* does not look good, but perhaps some trailing unneeded stuff */
3646 GST_WARNING_OBJECT (qtmux, "unexpected codec-data size, possibly broken");
3648 if (format == GST_QT_MUX_FORMAT_QT)
3649 ext_atom = build_mov_alac_extension (codec_config);
3651 ext_atom = build_codec_data_extension (FOURCC_alac, codec_config);
3652 /* set some more info */
3653 gst_buffer_map (codec_config, &map, GST_MAP_READ);
3654 entry.bytes_per_sample = 2;
3655 entry.samples_per_packet = GST_READ_UINT32_BE (map.data + 4);
3656 gst_buffer_unmap (codec_config, &map);
3657 gst_buffer_unref (codec_config);
3658 } else if (strcmp (mimetype, "audio/x-ac3") == 0) {
3659 entry.fourcc = FOURCC_ac_3;
3661 /* Fixed values according to TS 102 366 but it also mentions that
3662 * they should be ignored */
3664 entry.sample_size = 16;
3666 /* AC-3 needs an extension atom but its data can only be obtained from
3667 * the stream itself. Abuse the prepare_buf_func so we parse a frame
3668 * and get the needed data */
3669 qtpad->prepare_buf_func = gst_qt_mux_prepare_parse_ac3_frame;
3670 } else if (strcmp (mimetype, "audio/x-opus") == 0) {
3671 /* Based on the specification defined in:
3672 * https://www.opus-codec.org/docs/opus_in_isobmff.html */
3673 guint8 channels, mapping_family, stream_count, coupled_count;
3677 guint8 channel_mapping[256];
3678 const GValue *streamheader;
3679 const GValue *first_element;
3682 entry.fourcc = FOURCC_opus;
3683 entry.sample_size = 16;
3685 streamheader = gst_structure_get_value (structure, "streamheader");
3686 if (streamheader && GST_VALUE_HOLDS_ARRAY (streamheader) &&
3687 gst_value_array_get_size (streamheader) != 0) {
3688 first_element = gst_value_array_get_value (streamheader, 0);
3689 header = gst_value_get_buffer (first_element);
3690 if (!gst_codec_utils_opus_parse_header (header, &rate, &channels,
3691 &mapping_family, &stream_count, &coupled_count, channel_mapping,
3692 &pre_skip, &output_gain)) {
3693 GST_ERROR_OBJECT (qtmux, "Incomplete OpusHead");
3697 GST_WARNING_OBJECT (qtmux,
3698 "no streamheader field in caps %" GST_PTR_FORMAT, caps);
3700 if (!gst_codec_utils_opus_parse_caps (caps, &rate, &channels,
3701 &mapping_family, &stream_count, &coupled_count,
3703 GST_ERROR_OBJECT (qtmux, "Incomplete Opus caps");
3710 entry.channels = channels;
3711 ext_atom = build_opus_extension (rate, channels, mapping_family,
3712 stream_count, coupled_count, channel_mapping, pre_skip, output_gain);
3718 /* ok, set the pad info accordingly */
3719 qtpad->fourcc = entry.fourcc;
3720 qtpad->sample_size = constant_size;
3722 (SampleTableEntry *) atom_trak_set_audio_type (qtpad->trak,
3723 qtmux->context, &entry,
3724 qtmux->trak_timescale ? qtmux->trak_timescale : entry.sample_rate,
3725 ext_atom, constant_size);
3727 gst_object_unref (qtmux);
3733 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
3734 GST_PAD_NAME (pad), caps);
3735 gst_object_unref (qtmux);
3738 refuse_renegotiation:
3740 GST_WARNING_OBJECT (qtmux,
3741 "pad %s refused renegotiation to %" GST_PTR_FORMAT,
3742 GST_PAD_NAME (pad), caps);
3743 gst_object_unref (qtmux);
3748 /* scale rate up or down by factor of 10 to fit into [1000,10000] interval */
3750 adjust_rate (guint64 rate)
3755 while (rate >= 10000)
3761 return (guint32) rate;
3765 gst_qt_mux_video_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
3767 GstPad *pad = qtpad->collect.pad;
3768 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
3769 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
3770 GstStructure *structure;
3771 const gchar *mimetype;
3772 gint width, height, depth = -1;
3773 gint framerate_num, framerate_den;
3775 const GValue *value = NULL;
3776 const GstBuffer *codec_data = NULL;
3777 VisualSampleEntry entry = { 0, };
3778 GstQTMuxFormat format;
3779 AtomInfo *ext_atom = NULL;
3780 GList *ext_atom_list = NULL;
3781 gboolean sync = FALSE;
3782 int par_num, par_den;
3784 qtpad->prepare_buf_func = NULL;
3786 /* does not go well to renegotiate stream mid-way, unless
3787 * the old caps are a subset of the new one (this means upstream
3788 * added more info to the caps, as both should be 'fixed' caps) */
3789 if (qtpad->fourcc) {
3790 GstCaps *current_caps;
3792 current_caps = gst_pad_get_current_caps (pad);
3793 g_assert (caps != NULL);
3795 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
3796 gst_caps_unref (current_caps);
3797 goto refuse_renegotiation;
3799 GST_DEBUG_OBJECT (qtmux,
3800 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
3801 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
3802 gst_caps_unref (current_caps);
3805 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
3806 GST_DEBUG_PAD_NAME (pad), caps);
3808 format = qtmux_klass->format;
3809 structure = gst_caps_get_structure (caps, 0);
3810 mimetype = gst_structure_get_name (structure);
3812 /* required parts */
3813 if (!gst_structure_get_int (structure, "width", &width) ||
3814 !gst_structure_get_int (structure, "height", &height))
3819 /* works as a default timebase */
3820 framerate_num = 10000;
3822 gst_structure_get_fraction (structure, "framerate", &framerate_num,
3824 gst_structure_get_int (structure, "depth", &depth);
3825 value = gst_structure_get_value (structure, "codec_data");
3827 codec_data = gst_value_get_buffer (value);
3831 gst_structure_get_fraction (structure, "pixel-aspect-ratio", &par_num,
3834 qtpad->is_out_of_order = FALSE;
3836 /* bring frame numerator into a range that ensures both reasonable resolution
3837 * as well as a fair duration */
3838 rate = qtmux->trak_timescale ?
3839 qtmux->trak_timescale : adjust_rate (framerate_num);
3840 GST_DEBUG_OBJECT (qtmux, "Rate of video track selected: %" G_GUINT32_FORMAT,
3843 /* set common properties */
3844 entry.width = width;
3845 entry.height = height;
3846 entry.par_n = par_num;
3847 entry.par_d = par_den;
3848 /* should be OK according to qt and iso spec, override if really needed */
3849 entry.color_table_id = -1;
3850 entry.frame_count = 1;
3853 /* sync entries by default */
3856 /* now map onto a fourcc, and some extra properties */
3857 if (strcmp (mimetype, "video/x-raw") == 0) {
3858 const gchar *format;
3860 const GstVideoFormatInfo *vinfo;
3862 format = gst_structure_get_string (structure, "format");
3863 fmt = gst_video_format_from_string (format);
3864 vinfo = gst_video_format_get_info (fmt);
3867 case GST_VIDEO_FORMAT_UYVY:
3870 entry.fourcc = FOURCC_2vuy;
3871 entry.depth = depth;
3874 case GST_VIDEO_FORMAT_v210:
3877 entry.fourcc = FOURCC_v210;
3878 entry.depth = depth;
3882 if (GST_VIDEO_FORMAT_INFO_FLAGS (vinfo) & GST_VIDEO_FORMAT_FLAG_RGB) {
3883 entry.fourcc = FOURCC_raw_;
3884 entry.depth = GST_VIDEO_FORMAT_INFO_PSTRIDE (vinfo, 0) * 8;
3889 } else if (strcmp (mimetype, "video/x-h263") == 0) {
3891 if (format == GST_QT_MUX_FORMAT_QT)
3892 entry.fourcc = FOURCC_h263;
3894 entry.fourcc = FOURCC_s263;
3895 ext_atom = build_h263_extension ();
3896 if (ext_atom != NULL)
3897 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
3898 } else if (strcmp (mimetype, "video/x-divx") == 0 ||
3899 strcmp (mimetype, "video/mpeg") == 0) {
3902 if (strcmp (mimetype, "video/x-divx") == 0) {
3903 gst_structure_get_int (structure, "divxversion", &version);
3904 version = version == 5 ? 1 : 0;
3906 gst_structure_get_int (structure, "mpegversion", &version);
3907 version = version == 4 ? 1 : 0;
3910 entry.fourcc = FOURCC_mp4v;
3912 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P2,
3913 ESDS_STREAM_TYPE_VISUAL, codec_data, qtpad->avg_bitrate,
3914 qtpad->max_bitrate);
3915 if (ext_atom != NULL)
3916 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
3918 GST_WARNING_OBJECT (qtmux, "no codec_data for MPEG4 video; "
3919 "output might not play in Apple QuickTime (try global-headers?)");
3921 } else if (strcmp (mimetype, "video/x-h264") == 0) {
3922 /* check if we accept these caps */
3923 if (gst_structure_has_field (structure, "stream-format")) {
3924 const gchar *format;
3925 const gchar *alignment;
3927 format = gst_structure_get_string (structure, "stream-format");
3928 alignment = gst_structure_get_string (structure, "alignment");
3930 if (strcmp (format, "avc") != 0 || alignment == NULL ||
3931 strcmp (alignment, "au") != 0) {
3932 GST_WARNING_OBJECT (qtmux, "Rejecting h264 caps, qtmux only accepts "
3933 "avc format with AU aligned samples");
3937 GST_WARNING_OBJECT (qtmux, "no stream-format field in h264 caps");
3942 GST_WARNING_OBJECT (qtmux, "no codec_data in h264 caps");
3946 entry.fourcc = FOURCC_avc1;
3947 if (qtpad->avg_bitrate == 0) {
3948 gint avg_bitrate = 0;
3949 gst_structure_get_int (structure, "bitrate", &avg_bitrate);
3950 qtpad->avg_bitrate = avg_bitrate;
3952 ext_atom = build_btrt_extension (0, qtpad->avg_bitrate, qtpad->max_bitrate);
3953 if (ext_atom != NULL)
3954 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
3955 ext_atom = build_codec_data_extension (FOURCC_avcC, codec_data);
3956 if (ext_atom != NULL)
3957 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
3958 } else if (strcmp (mimetype, "video/x-svq") == 0) {
3960 const GstBuffer *seqh = NULL;
3961 const GValue *seqh_value;
3964 gst_structure_get_int (structure, "svqversion", &version);
3966 entry.fourcc = FOURCC_SVQ3;
3970 seqh_value = gst_structure_get_value (structure, "seqh");
3972 seqh = gst_value_get_buffer (seqh_value);
3973 ext_atom = build_SMI_atom (seqh);
3975 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
3978 /* we need to add the gamma anyway because quicktime might crash
3979 * when it doesn't find it */
3980 if (!gst_structure_get_double (structure, "applied-gamma", &gamma)) {
3981 /* it seems that using 0 here makes it ignored */
3984 ext_atom = build_gama_atom (gamma);
3986 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
3988 GST_WARNING_OBJECT (qtmux, "SVQ version %d not supported. Please file "
3989 "a bug at http://bugzilla.gnome.org", version);
3991 } else if (strcmp (mimetype, "video/x-dv") == 0) {
3993 gboolean pal = TRUE;
3996 if (framerate_num != 25 || framerate_den != 1)
3998 gst_structure_get_int (structure, "dvversion", &version);
3999 /* fall back to typical one */
4005 entry.fourcc = FOURCC_dvcp;
4007 entry.fourcc = FOURCC_dvc_;
4011 entry.fourcc = FOURCC_dv5p;
4013 entry.fourcc = FOURCC_dv5n;
4016 GST_WARNING_OBJECT (qtmux, "unrecognized dv version");
4019 } else if (strcmp (mimetype, "image/jpeg") == 0) {
4020 entry.fourcc = FOURCC_jpeg;
4022 } else if (strcmp (mimetype, "image/x-j2c") == 0 ||
4023 strcmp (mimetype, "image/x-jpc") == 0) {
4024 const gchar *colorspace;
4025 const GValue *cmap_array;
4026 const GValue *cdef_array;
4030 if (strcmp (mimetype, "image/x-jpc") == 0) {
4031 qtpad->prepare_buf_func = gst_qt_mux_prepare_jpc_buffer;
4034 gst_structure_get_int (structure, "num-components", &ncomp);
4035 gst_structure_get_int (structure, "fields", &fields);
4036 cmap_array = gst_structure_get_value (structure, "component-map");
4037 cdef_array = gst_structure_get_value (structure, "channel-definitions");
4040 entry.fourcc = FOURCC_mjp2;
4043 colorspace = gst_structure_get_string (structure, "colorspace");
4046 build_jp2h_extension (width, height, colorspace, ncomp, cmap_array,
4047 cdef_array)) != NULL) {
4048 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4050 ext_atom = build_fiel_extension (fields);
4052 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4054 ext_atom = build_jp2x_extension (codec_data);
4056 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4058 GST_DEBUG_OBJECT (qtmux, "missing or invalid fourcc in jp2 caps");
4061 } else if (strcmp (mimetype, "video/x-vp8") == 0) {
4062 entry.fourcc = FOURCC_VP80;
4064 } else if (strcmp (mimetype, "video/x-dirac") == 0) {
4065 entry.fourcc = FOURCC_drac;
4066 } else if (strcmp (mimetype, "video/x-qt-part") == 0) {
4069 gst_structure_get_uint (structure, "format", &fourcc);
4070 entry.fourcc = fourcc;
4071 } else if (strcmp (mimetype, "video/x-mp4-part") == 0) {
4074 gst_structure_get_uint (structure, "format", &fourcc);
4075 entry.fourcc = fourcc;
4076 } else if (strcmp (mimetype, "video/x-prores") == 0) {
4077 const gchar *variant;
4079 variant = gst_structure_get_string (structure, "format");
4080 if (!variant || !g_strcmp0 (variant, "standard"))
4081 entry.fourcc = FOURCC_apcn;
4082 else if (!g_strcmp0 (variant, "lt"))
4083 entry.fourcc = FOURCC_apcs;
4084 else if (!g_strcmp0 (variant, "hq"))
4085 entry.fourcc = FOURCC_apch;
4086 else if (!g_strcmp0 (variant, "proxy"))
4087 entry.fourcc = FOURCC_ap4h;
4093 /* ok, set the pad info accordingly */
4094 qtpad->fourcc = entry.fourcc;
4097 (SampleTableEntry *) atom_trak_set_video_type (qtpad->trak,
4098 qtmux->context, &entry, rate, ext_atom_list);
4100 gst_object_unref (qtmux);
4106 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4107 GST_PAD_NAME (pad), caps);
4108 gst_object_unref (qtmux);
4111 refuse_renegotiation:
4113 GST_WARNING_OBJECT (qtmux,
4114 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4116 gst_object_unref (qtmux);
4122 gst_qt_mux_subtitle_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
4124 GstPad *pad = qtpad->collect.pad;
4125 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
4126 GstStructure *structure;
4127 SubtitleSampleEntry entry = { 0, };
4129 /* does not go well to renegotiate stream mid-way, unless
4130 * the old caps are a subset of the new one (this means upstream
4131 * added more info to the caps, as both should be 'fixed' caps) */
4132 if (qtpad->fourcc) {
4133 GstCaps *current_caps;
4135 current_caps = gst_pad_get_current_caps (pad);
4136 g_assert (caps != NULL);
4138 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
4139 gst_caps_unref (current_caps);
4140 goto refuse_renegotiation;
4142 GST_DEBUG_OBJECT (qtmux,
4143 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
4144 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
4145 gst_caps_unref (current_caps);
4148 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
4149 GST_DEBUG_PAD_NAME (pad), caps);
4151 /* subtitles default */
4152 subtitle_sample_entry_init (&entry);
4153 qtpad->is_out_of_order = FALSE;
4154 qtpad->sync = FALSE;
4155 qtpad->sparse = TRUE;
4156 qtpad->prepare_buf_func = NULL;
4158 structure = gst_caps_get_structure (caps, 0);
4160 if (gst_structure_has_name (structure, "text/x-raw")) {
4161 const gchar *format = gst_structure_get_string (structure, "format");
4162 if (format && strcmp (format, "utf8") == 0) {
4163 entry.fourcc = FOURCC_tx3g;
4164 qtpad->prepare_buf_func = gst_qt_mux_prepare_tx3g_buffer;
4165 qtpad->create_empty_buffer = gst_qt_mux_create_empty_tx3g_buffer;
4172 qtpad->fourcc = entry.fourcc;
4174 (SampleTableEntry *) atom_trak_set_subtitle_type (qtpad->trak,
4175 qtmux->context, &entry);
4177 gst_object_unref (qtmux);
4183 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4184 GST_PAD_NAME (pad), caps);
4185 gst_object_unref (qtmux);
4188 refuse_renegotiation:
4190 GST_WARNING_OBJECT (qtmux,
4191 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4193 gst_object_unref (qtmux);
4199 gst_qt_mux_sink_event (GstCollectPads * pads, GstCollectData * data,
4200 GstEvent * event, gpointer user_data)
4203 guint32 avg_bitrate = 0, max_bitrate = 0;
4204 GstPad *pad = data->pad;
4205 gboolean ret = TRUE;
4207 qtmux = GST_QT_MUX_CAST (user_data);
4208 switch (GST_EVENT_TYPE (event)) {
4209 case GST_EVENT_CAPS:
4212 GstQTPad *collect_pad;
4214 gst_event_parse_caps (event, &caps);
4216 /* find stream data */
4217 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4218 g_assert (collect_pad);
4219 g_assert (collect_pad->set_caps);
4221 ret = collect_pad->set_caps (collect_pad, caps);
4222 gst_event_unref (event);
4226 case GST_EVENT_TAG:{
4228 GstTagSetter *setter = GST_TAG_SETTER (qtmux);
4229 GstTagMergeMode mode;
4231 GstQTPad *collect_pad;
4233 GST_OBJECT_LOCK (qtmux);
4234 mode = gst_tag_setter_get_tag_merge_mode (setter);
4235 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4237 gst_event_parse_tag (event, &list);
4238 GST_DEBUG_OBJECT (qtmux, "received tag event on pad %s:%s : %"
4239 GST_PTR_FORMAT, GST_DEBUG_PAD_NAME (pad), list);
4241 if (gst_tag_list_get_scope (list) == GST_TAG_SCOPE_GLOBAL) {
4242 gst_tag_setter_merge_tags (setter, list, mode);
4243 qtmux->tags_changed = TRUE;
4245 if (!collect_pad->tags)
4246 collect_pad->tags = gst_tag_list_new_empty ();
4247 gst_tag_list_insert (collect_pad->tags, list, mode);
4248 collect_pad->tags_changed = TRUE;
4250 GST_OBJECT_UNLOCK (qtmux);
4252 if (gst_tag_list_get_uint (list, GST_TAG_BITRATE, &avg_bitrate) |
4253 gst_tag_list_get_uint (list, GST_TAG_MAXIMUM_BITRATE, &max_bitrate)) {
4254 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4257 if (avg_bitrate > 0 && avg_bitrate < G_MAXUINT32)
4258 qtpad->avg_bitrate = avg_bitrate;
4259 if (max_bitrate > 0 && max_bitrate < G_MAXUINT32)
4260 qtpad->max_bitrate = max_bitrate;
4263 if (gst_tag_list_get_string (list, GST_TAG_LANGUAGE_CODE, &code)) {
4264 const char *iso_code = gst_tag_get_language_code_iso_639_2T (code);
4266 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4269 /* https://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html */
4270 qtpad->trak->mdia.mdhd.language_code =
4271 (iso_code[0] - 0x60) * 0x400 + (iso_code[1] - 0x60) * 0x20 +
4272 (iso_code[2] - 0x60);
4278 gst_event_unref (event);
4288 return gst_collect_pads_event_default (pads, data, event, FALSE);
4294 gst_qt_mux_release_pad (GstElement * element, GstPad * pad)
4296 GstQTMux *mux = GST_QT_MUX_CAST (element);
4299 GST_DEBUG_OBJECT (element, "Releasing %s:%s", GST_DEBUG_PAD_NAME (pad));
4301 for (walk = mux->sinkpads; walk; walk = g_slist_next (walk)) {
4302 GstQTPad *qtpad = (GstQTPad *) walk->data;
4303 GST_DEBUG ("Checking %s:%s", GST_DEBUG_PAD_NAME (qtpad->collect.pad));
4304 if (qtpad->collect.pad == pad) {
4305 /* this is it, remove */
4306 mux->sinkpads = g_slist_delete_link (mux->sinkpads, walk);
4307 gst_element_remove_pad (element, pad);
4312 gst_collect_pads_remove_pad (mux->collect, pad);
4316 gst_qt_mux_request_new_pad (GstElement * element,
4317 GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps)
4319 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
4320 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
4321 GstQTPad *collect_pad;
4323 GstQTPadSetCapsFunc setcaps_func;
4326 gboolean lock = TRUE;
4328 if (templ->direction != GST_PAD_SINK)
4329 goto wrong_direction;
4331 if (qtmux->state > GST_QT_MUX_STATE_STARTED)
4334 if (templ == gst_element_class_get_pad_template (klass, "audio_%u")) {
4335 setcaps_func = gst_qt_mux_audio_sink_set_caps;
4336 if (req_name != NULL && sscanf (req_name, "audio_%u", &pad_id) == 1) {
4337 name = g_strdup (req_name);
4339 name = g_strdup_printf ("audio_%u", qtmux->audio_pads++);
4341 } else if (templ == gst_element_class_get_pad_template (klass, "video_%u")) {
4342 setcaps_func = gst_qt_mux_video_sink_set_caps;
4343 if (req_name != NULL && sscanf (req_name, "video_%u", &pad_id) == 1) {
4344 name = g_strdup (req_name);
4346 name = g_strdup_printf ("video_%u", qtmux->video_pads++);
4348 } else if (templ == gst_element_class_get_pad_template (klass, "subtitle_%u")) {
4349 setcaps_func = gst_qt_mux_subtitle_sink_set_caps;
4350 if (req_name != NULL && sscanf (req_name, "subtitle_%u", &pad_id) == 1) {
4351 name = g_strdup (req_name);
4353 name = g_strdup_printf ("subtitle_%u", qtmux->subtitle_pads++);
4357 goto wrong_template;
4359 GST_DEBUG_OBJECT (qtmux, "Requested pad: %s", name);
4361 /* create pad and add to collections */
4362 newpad = gst_pad_new_from_template (templ, name);
4364 collect_pad = (GstQTPad *)
4365 gst_collect_pads_add_pad (qtmux->collect, newpad, sizeof (GstQTPad),
4366 (GstCollectDataDestroyNotify) (gst_qt_mux_pad_reset), lock);
4368 gst_qt_mux_pad_reset (collect_pad);
4369 collect_pad->trak = atom_trak_new (qtmux->context);
4370 atom_moov_add_trak (qtmux->moov, collect_pad->trak);
4372 qtmux->sinkpads = g_slist_append (qtmux->sinkpads, collect_pad);
4374 /* set up pad functions */
4375 collect_pad->set_caps = setcaps_func;
4377 gst_pad_set_active (newpad, TRUE);
4378 gst_element_add_pad (element, newpad);
4385 GST_WARNING_OBJECT (qtmux, "Request pad that is not a SINK pad.");
4390 GST_WARNING_OBJECT (qtmux, "Not providing request pad after stream start.");
4395 GST_WARNING_OBJECT (qtmux, "This is not our template!");
4401 gst_qt_mux_get_property (GObject * object,
4402 guint prop_id, GValue * value, GParamSpec * pspec)
4404 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4406 GST_OBJECT_LOCK (qtmux);
4408 case PROP_MOVIE_TIMESCALE:
4409 g_value_set_uint (value, qtmux->timescale);
4411 case PROP_TRAK_TIMESCALE:
4412 g_value_set_uint (value, qtmux->trak_timescale);
4415 g_value_set_boolean (value, qtmux->guess_pts);
4417 #ifndef GST_REMOVE_DEPRECATED
4418 case PROP_DTS_METHOD:
4419 g_value_set_enum (value, qtmux->dts_method);
4422 case PROP_FAST_START:
4423 g_value_set_boolean (value, qtmux->fast_start);
4425 case PROP_FAST_START_TEMP_FILE:
4426 g_value_set_string (value, qtmux->fast_start_file_path);
4428 case PROP_MOOV_RECOV_FILE:
4429 g_value_set_string (value, qtmux->moov_recov_file_path);
4431 case PROP_FRAGMENT_DURATION:
4432 g_value_set_uint (value, qtmux->fragment_duration);
4434 case PROP_STREAMABLE:
4435 g_value_set_boolean (value, qtmux->streamable);
4437 case PROP_RESERVED_MAX_DURATION:
4438 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4440 case PROP_RESERVED_DURATION_REMAINING:
4441 if (qtmux->reserved_duration_remaining == GST_CLOCK_TIME_NONE)
4442 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4444 GstClockTime remaining = qtmux->reserved_duration_remaining;
4446 /* Report the remaining space as the calculated remaining, minus
4447 * however much we've muxed since the last update */
4448 if (remaining > qtmux->muxed_since_last_update)
4449 remaining -= qtmux->muxed_since_last_update;
4452 GST_LOG_OBJECT (qtmux, "reserved duration remaining - reporting %"
4453 G_GUINT64_FORMAT "(%" G_GUINT64_FORMAT " - %" G_GUINT64_FORMAT,
4454 remaining, qtmux->reserved_duration_remaining,
4455 qtmux->muxed_since_last_update);
4456 g_value_set_uint64 (value, remaining);
4459 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4460 g_value_set_uint64 (value, qtmux->reserved_moov_update_period);
4462 case PROP_RESERVED_BYTES_PER_SEC:
4463 g_value_set_uint (value, qtmux->reserved_bytes_per_sec_per_trak);
4466 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4469 GST_OBJECT_UNLOCK (qtmux);
4473 gst_qt_mux_generate_fast_start_file_path (GstQTMux * qtmux)
4477 g_free (qtmux->fast_start_file_path);
4478 qtmux->fast_start_file_path = NULL;
4480 tmp = g_strdup_printf ("%s%d", "qtmux", g_random_int ());
4481 qtmux->fast_start_file_path = g_build_filename (g_get_tmp_dir (), tmp, NULL);
4486 gst_qt_mux_set_property (GObject * object,
4487 guint prop_id, const GValue * value, GParamSpec * pspec)
4489 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4491 GST_OBJECT_LOCK (qtmux);
4493 case PROP_MOVIE_TIMESCALE:
4494 qtmux->timescale = g_value_get_uint (value);
4496 case PROP_TRAK_TIMESCALE:
4497 qtmux->trak_timescale = g_value_get_uint (value);
4500 qtmux->guess_pts = g_value_get_boolean (value);
4502 #ifndef GST_REMOVE_DEPRECATED
4503 case PROP_DTS_METHOD:
4504 qtmux->dts_method = g_value_get_enum (value);
4507 case PROP_FAST_START:
4508 qtmux->fast_start = g_value_get_boolean (value);
4510 case PROP_FAST_START_TEMP_FILE:
4511 g_free (qtmux->fast_start_file_path);
4512 qtmux->fast_start_file_path = g_value_dup_string (value);
4513 /* NULL means to generate a random one */
4514 if (!qtmux->fast_start_file_path) {
4515 gst_qt_mux_generate_fast_start_file_path (qtmux);
4518 case PROP_MOOV_RECOV_FILE:
4519 g_free (qtmux->moov_recov_file_path);
4520 qtmux->moov_recov_file_path = g_value_dup_string (value);
4522 case PROP_FRAGMENT_DURATION:
4523 qtmux->fragment_duration = g_value_get_uint (value);
4525 case PROP_STREAMABLE:{
4526 GstQTMuxClass *qtmux_klass =
4527 (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
4528 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML) {
4529 qtmux->streamable = g_value_get_boolean (value);
4533 case PROP_RESERVED_MAX_DURATION:
4534 qtmux->reserved_max_duration = g_value_get_uint64 (value);
4536 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4537 qtmux->reserved_moov_update_period = g_value_get_uint64 (value);
4539 case PROP_RESERVED_BYTES_PER_SEC:
4540 qtmux->reserved_bytes_per_sec_per_trak = g_value_get_uint (value);
4543 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4546 GST_OBJECT_UNLOCK (qtmux);
4549 static GstStateChangeReturn
4550 gst_qt_mux_change_state (GstElement * element, GstStateChange transition)
4552 GstStateChangeReturn ret;
4553 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
4555 switch (transition) {
4556 case GST_STATE_CHANGE_NULL_TO_READY:
4558 case GST_STATE_CHANGE_READY_TO_PAUSED:
4559 gst_collect_pads_start (qtmux->collect);
4560 qtmux->state = GST_QT_MUX_STATE_STARTED;
4562 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
4564 case GST_STATE_CHANGE_PAUSED_TO_READY:
4565 gst_collect_pads_stop (qtmux->collect);
4571 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4573 switch (transition) {
4574 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
4576 case GST_STATE_CHANGE_PAUSED_TO_READY:
4577 gst_qt_mux_reset (qtmux, TRUE);
4579 case GST_STATE_CHANGE_READY_TO_NULL:
4589 gst_qt_mux_register (GstPlugin * plugin)
4591 GTypeInfo typeinfo = {
4592 sizeof (GstQTMuxClass),
4593 (GBaseInitFunc) gst_qt_mux_base_init,
4595 (GClassInitFunc) gst_qt_mux_class_init,
4600 (GInstanceInitFunc) gst_qt_mux_init,
4602 static const GInterfaceInfo tag_setter_info = {
4605 static const GInterfaceInfo tag_xmp_writer_info = {
4609 GstQTMuxFormat format;
4610 GstQTMuxClassParams *params;
4613 GST_DEBUG_CATEGORY_INIT (gst_qt_mux_debug, "qtmux", 0, "QT Muxer");
4615 GST_LOG ("Registering muxers");
4618 GstQTMuxFormatProp *prop;
4619 GstCaps *subtitle_caps;
4621 prop = &gst_qt_mux_format_list[i];
4622 format = prop->format;
4623 if (format == GST_QT_MUX_FORMAT_NONE)
4626 /* create a cache for these properties */
4627 params = g_new0 (GstQTMuxClassParams, 1);
4628 params->prop = prop;
4629 params->src_caps = gst_static_caps_get (&prop->src_caps);
4630 params->video_sink_caps = gst_static_caps_get (&prop->video_sink_caps);
4631 params->audio_sink_caps = gst_static_caps_get (&prop->audio_sink_caps);
4632 subtitle_caps = gst_static_caps_get (&prop->subtitle_sink_caps);
4633 if (!gst_caps_is_equal (subtitle_caps, GST_CAPS_NONE)) {
4634 params->subtitle_sink_caps = subtitle_caps;
4636 gst_caps_unref (subtitle_caps);
4639 /* create the type now */
4640 type = g_type_register_static (GST_TYPE_ELEMENT, prop->type_name, &typeinfo,
4642 g_type_set_qdata (type, GST_QT_MUX_PARAMS_QDATA, (gpointer) params);
4643 g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, &tag_setter_info);
4644 g_type_add_interface_static (type, GST_TYPE_TAG_XMP_WRITER,
4645 &tag_xmp_writer_info);
4647 if (!gst_element_register (plugin, prop->name, prop->rank, type))
4653 GST_LOG ("Finished registering muxers");
4655 /* FIXME: ideally classification tag should be added and
4656 registered in gstreamer core gsttaglist
4659 GST_LOG ("Registering tags");
4661 gst_tag_register (GST_TAG_3GP_CLASSIFICATION, GST_TAG_FLAG_META,
4662 G_TYPE_STRING, GST_TAG_3GP_CLASSIFICATION, "content classification",
4663 gst_tag_merge_use_first);
4665 GST_LOG ("Finished registering tags");