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 0
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, 0 == default)",
406 0, 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;
507 qtpad->tc_trak = NULL;
512 gst_buffer_replace (&qtpad->last_buf, NULL);
515 gst_tag_list_unref (qtpad->tags);
519 /* reference owned elsewhere */
523 atom_traf_free (qtpad->traf);
526 atom_array_clear (&qtpad->fragment_buffers);
528 /* reference owned elsewhere */
533 * Takes GstQTMux back to its initial state
536 gst_qt_mux_reset (GstQTMux * qtmux, gboolean alloc)
540 qtmux->state = GST_QT_MUX_STATE_NONE;
541 qtmux->header_size = 0;
542 qtmux->mdat_size = 0;
545 qtmux->longest_chunk = GST_CLOCK_TIME_NONE;
546 qtmux->video_pads = 0;
547 qtmux->audio_pads = 0;
548 qtmux->fragment_sequence = 0;
551 atom_ftyp_free (qtmux->ftyp);
555 atom_moov_free (qtmux->moov);
559 atom_mfra_free (qtmux->mfra);
562 if (qtmux->fast_start_file) {
563 fclose (qtmux->fast_start_file);
564 g_remove (qtmux->fast_start_file_path);
565 qtmux->fast_start_file = NULL;
567 if (qtmux->moov_recov_file) {
568 fclose (qtmux->moov_recov_file);
569 qtmux->moov_recov_file = NULL;
571 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
572 AtomInfo *ainfo = (AtomInfo *) walk->data;
573 ainfo->free_func (ainfo->atom);
576 g_slist_free (qtmux->extra_atoms);
577 qtmux->extra_atoms = NULL;
579 GST_OBJECT_LOCK (qtmux);
580 gst_tag_setter_reset_tags (GST_TAG_SETTER (qtmux));
581 GST_OBJECT_UNLOCK (qtmux);
584 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
585 GstQTPad *qtpad = (GstQTPad *) walk->data;
586 gst_qt_mux_pad_reset (qtpad);
588 /* hm, moov_free above yanked the traks away from us,
589 * so do not free, but do clear */
594 qtmux->moov = atom_moov_new (qtmux->context);
595 /* ensure all is as nice and fresh as request_new_pad would provide it */
596 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
597 GstQTPad *qtpad = (GstQTPad *) walk->data;
599 qtpad->trak = atom_trak_new (qtmux->context);
600 atom_moov_add_trak (qtmux->moov, qtpad->trak);
604 qtmux->reserved_moov_size = 0;
605 qtmux->last_moov_update = GST_CLOCK_TIME_NONE;
606 qtmux->muxed_since_last_update = 0;
607 qtmux->reserved_duration_remaining = GST_CLOCK_TIME_NONE;
608 qtmux->first_pts = GST_CLOCK_TIME_NONE;
613 gst_qt_mux_init (GstQTMux * qtmux, GstQTMuxClass * qtmux_klass)
615 GstElementClass *klass = GST_ELEMENT_CLASS (qtmux_klass);
616 GstPadTemplate *templ;
618 templ = gst_element_class_get_pad_template (klass, "src");
619 qtmux->srcpad = gst_pad_new_from_template (templ, "src");
620 gst_pad_use_fixed_caps (qtmux->srcpad);
621 gst_element_add_pad (GST_ELEMENT (qtmux), qtmux->srcpad);
623 qtmux->sinkpads = NULL;
624 qtmux->collect = gst_collect_pads_new ();
625 gst_collect_pads_set_buffer_function (qtmux->collect,
626 GST_DEBUG_FUNCPTR (gst_qt_mux_handle_buffer), qtmux);
627 gst_collect_pads_set_event_function (qtmux->collect,
628 GST_DEBUG_FUNCPTR (gst_qt_mux_sink_event), qtmux);
629 gst_collect_pads_set_clip_function (qtmux->collect,
630 GST_DEBUG_FUNCPTR (gst_collect_pads_clip_running_time), qtmux);
632 /* properties set to default upon construction */
634 qtmux->reserved_max_duration = DEFAULT_RESERVED_MAX_DURATION;
635 qtmux->reserved_moov_update_period = DEFAULT_RESERVED_MOOV_UPDATE_PERIOD;
636 qtmux->reserved_bytes_per_sec_per_trak =
637 DEFAULT_RESERVED_BYTES_PER_SEC_PER_TRAK;
639 /* always need this */
641 atoms_context_new (gst_qt_mux_map_format_to_flavor (qtmux_klass->format));
643 /* internals to initial state */
644 gst_qt_mux_reset (qtmux, TRUE);
649 gst_qt_mux_finalize (GObject * object)
651 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
653 gst_qt_mux_reset (qtmux, FALSE);
655 g_free (qtmux->fast_start_file_path);
656 g_free (qtmux->moov_recov_file_path);
658 atoms_context_free (qtmux->context);
659 gst_object_unref (qtmux->collect);
661 g_slist_free (qtmux->sinkpads);
663 G_OBJECT_CLASS (parent_class)->finalize (object);
667 gst_qt_mux_prepare_jpc_buffer (GstQTPad * qtpad, GstBuffer * buf,
674 GST_LOG_OBJECT (qtmux, "Preparing jpc buffer");
679 size = gst_buffer_get_size (buf);
680 newbuf = gst_buffer_new_and_alloc (size + 8);
681 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_ALL, 8, size);
683 gst_buffer_map (newbuf, &map, GST_MAP_WRITE);
684 GST_WRITE_UINT32_BE (map.data, map.size);
685 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_jp2c);
687 gst_buffer_unmap (buf, &map);
688 gst_buffer_unref (buf);
694 gst_qt_mux_prepare_tx3g_buffer (GstQTPad * qtpad, GstBuffer * buf,
701 const guint8 *dataend;
703 GST_LOG_OBJECT (qtmux, "Preparing tx3g buffer %" GST_PTR_FORMAT, buf);
708 gst_buffer_map (buf, &frommap, GST_MAP_READ);
710 dataend = memchr (frommap.data, 0, frommap.size);
711 size = dataend ? dataend - frommap.data : frommap.size;
712 newbuf = gst_buffer_new_and_alloc (size + 2);
714 gst_buffer_map (newbuf, &tomap, GST_MAP_WRITE);
716 GST_WRITE_UINT16_BE (tomap.data, size);
717 memcpy (tomap.data + 2, frommap.data, size);
719 gst_buffer_unmap (newbuf, &tomap);
720 gst_buffer_unmap (buf, &frommap);
722 gst_buffer_copy_into (newbuf, buf, GST_BUFFER_COPY_METADATA, 0, size);
724 /* gst_buffer_copy_into is trying to be too clever and
725 * won't copy duration when size is different */
726 GST_BUFFER_DURATION (newbuf) = GST_BUFFER_DURATION (buf);
728 gst_buffer_unref (buf);
734 gst_qt_mux_pad_add_ac3_extension (GstQTMux * qtmux, GstQTPad * qtpad,
735 guint8 fscod, guint8 frmsizcod, guint8 bsid, guint8 bsmod, guint8 acmod,
740 g_return_if_fail (qtpad->trak_ste);
742 ext = build_ac3_extension (fscod, bsid, bsmod, acmod, lfe_on, frmsizcod >> 1); /* bitrate_code is inside frmsizcod */
744 sample_table_entry_add_ext_atom (qtpad->trak_ste, ext);
748 gst_qt_mux_prepare_parse_ac3_frame (GstQTPad * qtpad, GstBuffer * buf,
752 GstByteReader reader;
755 if (!gst_buffer_map (buf, &map, GST_MAP_READ)) {
756 GST_WARNING_OBJECT (qtpad->collect.pad, "Failed to map buffer");
760 if (G_UNLIKELY (map.size < 8))
763 gst_byte_reader_init (&reader, map.data, map.size);
764 off = gst_byte_reader_masked_scan_uint32 (&reader, 0xffff0000, 0x0b770000,
769 guint8 fscod, frmsizcod, bsid, bsmod, acmod, lfe_on;
771 GST_DEBUG_OBJECT (qtpad->collect.pad, "Found ac3 sync point at offset: %u",
774 gst_bit_reader_init (&bits, map.data, map.size);
776 /* off + sync + crc */
777 gst_bit_reader_skip_unchecked (&bits, off * 8 + 16 + 16);
779 fscod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 2);
780 frmsizcod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 6);
781 bsid = gst_bit_reader_get_bits_uint8_unchecked (&bits, 5);
782 bsmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
783 acmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
785 if ((acmod & 0x1) && (acmod != 0x1)) /* 3 front channels */
786 gst_bit_reader_skip_unchecked (&bits, 2);
787 if ((acmod & 0x4)) /* if a surround channel exists */
788 gst_bit_reader_skip_unchecked (&bits, 2);
789 if (acmod == 0x2) /* if in 2/0 mode */
790 gst_bit_reader_skip_unchecked (&bits, 2);
792 lfe_on = gst_bit_reader_get_bits_uint8_unchecked (&bits, 1);
794 gst_qt_mux_pad_add_ac3_extension (qtmux, qtpad, fscod, frmsizcod, bsid,
795 bsmod, acmod, lfe_on);
797 /* AC-3 spec says that those values should be constant for the
798 * whole stream when muxed in mp4. We trust the input follows it */
799 GST_DEBUG_OBJECT (qtpad->collect.pad, "Data parsed, removing "
800 "prepare buffer function");
801 qtpad->prepare_buf_func = NULL;
805 gst_buffer_unmap (buf, &map);
810 gst_qt_mux_create_empty_tx3g_buffer (GstQTPad * qtpad, gint64 duration)
815 GST_WRITE_UINT16_BE (data, 0);
817 return gst_buffer_new_wrapped (data, 2);
821 gst_qt_mux_add_mp4_tag (GstQTMux * qtmux, const GstTagList * list,
822 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
824 switch (gst_tag_get_type (tag)) {
830 if (!gst_tag_list_get_string (list, tag, &str) || !str)
832 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
833 GST_FOURCC_ARGS (fourcc), str);
834 atom_udta_add_str_tag (udta, fourcc, str);
843 if (!gst_tag_list_get_double (list, tag, &value))
845 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
846 GST_FOURCC_ARGS (fourcc), (gint) value);
847 atom_udta_add_uint_tag (udta, fourcc, 21, (gint) value);
854 /* paired unsigned integers */
858 got_tag = gst_tag_list_get_uint (list, tag, &value);
859 got_tag = gst_tag_list_get_uint (list, tag2, &count) || got_tag;
862 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u/%u",
863 GST_FOURCC_ARGS (fourcc), value, count);
864 atom_udta_add_uint_tag (udta, fourcc, 0,
865 value << 16 | (count & 0xFFFF));
867 /* unpaired unsigned integers */
868 if (!gst_tag_list_get_uint (list, tag, &value))
870 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %u",
871 GST_FOURCC_ARGS (fourcc), value);
872 atom_udta_add_uint_tag (udta, fourcc, 1, value);
877 g_assert_not_reached ();
883 gst_qt_mux_add_mp4_date (GstQTMux * qtmux, const GstTagList * list,
884 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
892 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
894 if (!gst_tag_list_get_date (list, tag, &date) || !date)
897 year = g_date_get_year (date);
898 month = g_date_get_month (date);
899 day = g_date_get_day (date);
903 if (year == G_DATE_BAD_YEAR && month == G_DATE_BAD_MONTH &&
904 day == G_DATE_BAD_DAY) {
905 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
909 str = g_strdup_printf ("%u-%u-%u", year, month, day);
910 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
911 GST_FOURCC_ARGS (fourcc), str);
912 atom_udta_add_str_tag (udta, fourcc, str);
917 gst_qt_mux_add_mp4_cover (GstQTMux * qtmux, const GstTagList * list,
918 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
920 GValue value = { 0, };
924 GstStructure *structure;
928 g_return_if_fail (gst_tag_get_type (tag) == GST_TYPE_SAMPLE);
930 if (!gst_tag_list_copy_value (&value, list, tag))
933 sample = gst_value_get_sample (&value);
938 buf = gst_sample_get_buffer (sample);
942 caps = gst_sample_get_caps (sample);
944 GST_WARNING_OBJECT (qtmux, "preview image without caps");
948 GST_DEBUG_OBJECT (qtmux, "preview image caps %" GST_PTR_FORMAT, caps);
950 structure = gst_caps_get_structure (caps, 0);
951 if (gst_structure_has_name (structure, "image/jpeg"))
953 else if (gst_structure_has_name (structure, "image/png"))
957 GST_WARNING_OBJECT (qtmux, "preview image format not supported");
961 gst_buffer_map (buf, &map, GST_MAP_READ);
962 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT
963 " -> image size %" G_GSIZE_FORMAT "", GST_FOURCC_ARGS (fourcc), map.size);
964 atom_udta_add_tag (udta, fourcc, flags, map.data, map.size);
965 gst_buffer_unmap (buf, &map);
967 g_value_unset (&value);
971 gst_qt_mux_add_3gp_str (GstQTMux * qtmux, const GstTagList * list,
972 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
977 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_STRING);
978 g_return_if_fail (!tag2 || gst_tag_get_type (tag2) == G_TYPE_UINT);
980 if (!gst_tag_list_get_string (list, tag, &str) || !str)
984 if (!gst_tag_list_get_uint (list, tag2, &number))
988 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
989 GST_FOURCC_ARGS (fourcc), str);
990 atom_udta_add_3gp_str_tag (udta, fourcc, str);
992 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s/%d",
993 GST_FOURCC_ARGS (fourcc), str, number);
994 atom_udta_add_3gp_str_int_tag (udta, fourcc, str, number);
1001 gst_qt_mux_add_3gp_date (GstQTMux * qtmux, const GstTagList * list,
1002 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1007 g_return_if_fail (gst_tag_get_type (tag) == G_TYPE_DATE);
1009 if (!gst_tag_list_get_date (list, tag, &date) || !date)
1012 year = g_date_get_year (date);
1015 if (year == G_DATE_BAD_YEAR) {
1016 GST_WARNING_OBJECT (qtmux, "invalid date in tag");
1020 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %d",
1021 GST_FOURCC_ARGS (fourcc), year);
1022 atom_udta_add_3gp_uint_tag (udta, fourcc, year);
1026 gst_qt_mux_add_3gp_location (GstQTMux * qtmux, const GstTagList * list,
1027 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1029 gdouble latitude = -360, longitude = -360, altitude = 0;
1030 gchar *location = NULL;
1031 guint8 *data, *ddata;
1032 gint size = 0, len = 0;
1033 gboolean ret = FALSE;
1035 g_return_if_fail (strcmp (tag, GST_TAG_GEO_LOCATION_NAME) == 0);
1037 ret = gst_tag_list_get_string (list, tag, &location);
1038 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LONGITUDE,
1040 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_LATITUDE,
1042 ret |= gst_tag_list_get_double (list, GST_TAG_GEO_LOCATION_ELEVATION,
1049 len = strlen (location);
1050 size += len + 1 + 2;
1052 /* role + (long, lat, alt) + body + notes */
1053 size += 1 + 3 * 4 + 1 + 1;
1055 data = ddata = g_malloc (size);
1058 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1061 memcpy (data + 2, location, len);
1062 GST_WRITE_UINT8 (data + 2 + len, 0);
1063 data += len + 1 + 2;
1065 GST_WRITE_UINT8 (data, 0);
1066 /* long, lat, alt */
1067 #define QT_WRITE_SFP32(data, fp) GST_WRITE_UINT32_BE(data, (guint32) ((gint) (fp * 65536.0)))
1068 QT_WRITE_SFP32 (data + 1, longitude);
1069 QT_WRITE_SFP32 (data + 5, latitude);
1070 QT_WRITE_SFP32 (data + 9, altitude);
1071 /* neither astronomical body nor notes */
1072 GST_WRITE_UINT16_BE (data + 13, 0);
1074 GST_DEBUG_OBJECT (qtmux, "Adding tag 'loci'");
1075 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1080 gst_qt_mux_add_3gp_keywords (GstQTMux * qtmux, const GstTagList * list,
1081 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1083 gchar *keywords = NULL;
1084 guint8 *data, *ddata;
1088 g_return_if_fail (strcmp (tag, GST_TAG_KEYWORDS) == 0);
1090 if (!gst_tag_list_get_string (list, tag, &keywords) || !keywords)
1093 kwds = g_strsplit (keywords, ",", 0);
1097 for (i = 0; kwds[i]; i++) {
1098 /* size byte + null-terminator */
1099 size += strlen (kwds[i]) + 1 + 1;
1102 /* language tag + count + keywords */
1105 data = ddata = g_malloc (size);
1108 GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
1110 GST_WRITE_UINT8 (data + 2, i);
1113 for (i = 0; kwds[i]; ++i) {
1114 gint len = strlen (kwds[i]);
1116 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1117 GST_FOURCC_ARGS (fourcc), kwds[i]);
1119 GST_WRITE_UINT8 (data, len + 1);
1120 memcpy (data + 1, kwds[i], len + 1);
1126 atom_udta_add_3gp_tag (udta, fourcc, ddata, size);
1131 gst_qt_mux_parse_classification_string (GstQTMux * qtmux, const gchar * input,
1132 guint32 * p_fourcc, guint16 * p_table, gchar ** p_content)
1140 size = strlen (input);
1142 if (size < 4 + 3 + 1 + 1 + 1) {
1143 /* at least the minimum xxxx://y/z */
1144 GST_WARNING_OBJECT (qtmux, "Classification tag input (%s) too short, "
1149 /* read the fourcc */
1150 memcpy (&fourcc, data, 4);
1154 if (strncmp (data, "://", 3) != 0) {
1160 /* read the table number */
1161 if (sscanf (data, "%d", &table) != 1) {
1165 GST_WARNING_OBJECT (qtmux, "Invalid table number in classification tag (%d)"
1166 ", table numbers should be positive, ignoring tag", table);
1170 /* find the next / */
1171 while (size > 0 && data[0] != '/') {
1178 g_assert (data[0] == '/');
1187 /* read up the rest of the string */
1188 *p_content = g_strdup (data);
1189 *p_table = (guint16) table;
1195 GST_WARNING_OBJECT (qtmux, "Ignoring classification tag as "
1196 "input (%s) didn't match the expected entitycode://table/content",
1203 gst_qt_mux_add_3gp_classification (GstQTMux * qtmux, const GstTagList * list,
1204 AtomUDTA * udta, const char *tag, const char *tag2, guint32 fourcc)
1206 gchar *clsf_data = NULL;
1210 gchar *content = NULL;
1213 g_return_if_fail (strcmp (tag, GST_TAG_3GP_CLASSIFICATION) == 0);
1215 if (!gst_tag_list_get_string (list, tag, &clsf_data) || !clsf_data)
1218 GST_DEBUG_OBJECT (qtmux, "Adding tag %" GST_FOURCC_FORMAT " -> %s",
1219 GST_FOURCC_ARGS (fourcc), clsf_data);
1221 /* parse the string, format is:
1222 * entityfourcc://table/content
1224 gst_qt_mux_parse_classification_string (qtmux, clsf_data, &entity, &table,
1228 size = strlen (content) + 1;
1230 /* now we have everything, build the atom
1231 * atom description is at 3GPP TS 26.244 V8.2.0 (2009-09) */
1232 data = g_malloc (4 + 2 + 2 + size);
1233 GST_WRITE_UINT32_LE (data, entity);
1234 GST_WRITE_UINT16_BE (data + 4, (guint16) table);
1235 GST_WRITE_UINT16_BE (data + 6, 0);
1236 memcpy (data + 8, content, size);
1239 atom_udta_add_3gp_tag (udta, fourcc, data, 4 + 2 + 2 + size);
1243 typedef void (*GstQTMuxAddUdtaTagFunc) (GstQTMux * mux,
1244 const GstTagList * list, AtomUDTA * udta, const char *tag,
1245 const char *tag2, guint32 fourcc);
1248 * Struct to record mappings from gstreamer tags to fourcc codes
1250 typedef struct _GstTagToFourcc
1253 const gchar *gsttag;
1254 const gchar *gsttag2;
1255 const GstQTMuxAddUdtaTagFunc func;
1258 /* tag list tags to fourcc matching */
1259 static const GstTagToFourcc tag_matches_mp4[] = {
1260 {FOURCC__alb, GST_TAG_ALBUM, NULL, gst_qt_mux_add_mp4_tag},
1261 {FOURCC_soal, GST_TAG_ALBUM_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1262 {FOURCC__ART, GST_TAG_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1263 {FOURCC_soar, GST_TAG_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1264 {FOURCC_aART, GST_TAG_ALBUM_ARTIST, NULL, gst_qt_mux_add_mp4_tag},
1265 {FOURCC_soaa, GST_TAG_ALBUM_ARTIST_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1266 {FOURCC__swr, GST_TAG_APPLICATION_NAME, NULL, gst_qt_mux_add_mp4_tag},
1267 {FOURCC__cmt, GST_TAG_COMMENT, NULL, gst_qt_mux_add_mp4_tag},
1268 {FOURCC__wrt, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_mp4_tag},
1269 {FOURCC_soco, GST_TAG_COMPOSER_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1270 {FOURCC_tvsh, GST_TAG_SHOW_NAME, NULL, gst_qt_mux_add_mp4_tag},
1271 {FOURCC_sosn, GST_TAG_SHOW_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1272 {FOURCC_tvsn, GST_TAG_SHOW_SEASON_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1273 {FOURCC_tves, GST_TAG_SHOW_EPISODE_NUMBER, NULL, gst_qt_mux_add_mp4_tag},
1274 {FOURCC__gen, GST_TAG_GENRE, NULL, gst_qt_mux_add_mp4_tag},
1275 {FOURCC__nam, GST_TAG_TITLE, NULL, gst_qt_mux_add_mp4_tag},
1276 {FOURCC_sonm, GST_TAG_TITLE_SORTNAME, NULL, gst_qt_mux_add_mp4_tag},
1277 {FOURCC_perf, GST_TAG_PERFORMER, NULL, gst_qt_mux_add_mp4_tag},
1278 {FOURCC__grp, GST_TAG_GROUPING, NULL, gst_qt_mux_add_mp4_tag},
1279 {FOURCC__des, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_mp4_tag},
1280 {FOURCC__lyr, GST_TAG_LYRICS, NULL, gst_qt_mux_add_mp4_tag},
1281 {FOURCC__too, GST_TAG_ENCODER, NULL, gst_qt_mux_add_mp4_tag},
1282 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_mp4_tag},
1283 {FOURCC_keyw, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_mp4_tag},
1284 {FOURCC__day, GST_TAG_DATE, NULL, gst_qt_mux_add_mp4_date},
1285 {FOURCC_tmpo, GST_TAG_BEATS_PER_MINUTE, NULL, gst_qt_mux_add_mp4_tag},
1286 {FOURCC_trkn, GST_TAG_TRACK_NUMBER, GST_TAG_TRACK_COUNT,
1287 gst_qt_mux_add_mp4_tag},
1288 {FOURCC_disk, GST_TAG_ALBUM_VOLUME_NUMBER, GST_TAG_ALBUM_VOLUME_COUNT,
1289 gst_qt_mux_add_mp4_tag},
1290 {FOURCC_covr, GST_TAG_PREVIEW_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1291 {FOURCC_covr, GST_TAG_IMAGE, NULL, gst_qt_mux_add_mp4_cover},
1295 static const GstTagToFourcc tag_matches_3gp[] = {
1296 {FOURCC_titl, GST_TAG_TITLE, NULL, gst_qt_mux_add_3gp_str},
1297 {FOURCC_dscp, GST_TAG_DESCRIPTION, NULL, gst_qt_mux_add_3gp_str},
1298 {FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, gst_qt_mux_add_3gp_str},
1299 {FOURCC_perf, GST_TAG_ARTIST, NULL, gst_qt_mux_add_3gp_str},
1300 {FOURCC_auth, GST_TAG_COMPOSER, NULL, gst_qt_mux_add_3gp_str},
1301 {FOURCC_gnre, GST_TAG_GENRE, NULL, gst_qt_mux_add_3gp_str},
1302 {FOURCC_kywd, GST_TAG_KEYWORDS, NULL, gst_qt_mux_add_3gp_keywords},
1303 {FOURCC_yrrc, GST_TAG_DATE, NULL, gst_qt_mux_add_3gp_date},
1304 {FOURCC_albm, GST_TAG_ALBUM, GST_TAG_TRACK_NUMBER, gst_qt_mux_add_3gp_str},
1305 {FOURCC_loci, GST_TAG_GEO_LOCATION_NAME, NULL, gst_qt_mux_add_3gp_location},
1306 {FOURCC_clsf, GST_TAG_3GP_CLASSIFICATION, NULL,
1307 gst_qt_mux_add_3gp_classification},
1311 /* qtdemux produces these for atoms it cannot parse */
1312 #define GST_QT_DEMUX_PRIVATE_TAG "private-qt-tag"
1315 gst_qt_mux_add_xmp_tags (GstQTMux * qtmux, const GstTagList * list)
1317 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1318 GstBuffer *xmp = NULL;
1320 /* adobe specs only have 'quicktime' and 'mp4',
1321 * but I guess we can extrapolate to gpp.
1322 * Keep mj2 out for now as we don't add any tags for it yet.
1323 * If you have further info about xmp on these formats, please share */
1324 if (qtmux_klass->format == GST_QT_MUX_FORMAT_MJ2)
1327 GST_DEBUG_OBJECT (qtmux, "Adding xmp tags");
1329 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT) {
1330 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1333 atom_udta_add_xmp_tags (&qtmux->moov->udta, xmp);
1336 /* for isom/mp4, it is a top level uuid atom */
1337 xmp = gst_tag_xmp_writer_tag_list_to_xmp_buffer (GST_TAG_XMP_WRITER (qtmux),
1340 ainfo = build_uuid_xmp_atom (xmp);
1342 qtmux->extra_atoms = g_slist_prepend (qtmux->extra_atoms, ainfo);
1347 gst_buffer_unref (xmp);
1351 gst_qt_mux_add_metadata_tags (GstQTMux * qtmux, const GstTagList * list,
1354 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1357 const gchar *tag, *tag2;
1358 const GstTagToFourcc *tag_matches;
1360 switch (qtmux_klass->format) {
1361 case GST_QT_MUX_FORMAT_3GP:
1362 tag_matches = tag_matches_3gp;
1364 case GST_QT_MUX_FORMAT_MJ2:
1368 /* sort of iTunes style for mp4 and QT (?) */
1369 tag_matches = tag_matches_mp4;
1376 /* Clear existing tags so we don't add them over and over */
1377 atom_udta_clear_tags (udta);
1379 for (i = 0; tag_matches[i].fourcc; i++) {
1380 fourcc = tag_matches[i].fourcc;
1381 tag = tag_matches[i].gsttag;
1382 tag2 = tag_matches[i].gsttag2;
1384 g_assert (tag_matches[i].func);
1385 tag_matches[i].func (qtmux, list, udta, tag, tag2, fourcc);
1388 /* add unparsed blobs if present */
1389 if (gst_tag_exists (GST_QT_DEMUX_PRIVATE_TAG)) {
1392 num_tags = gst_tag_list_get_tag_size (list, GST_QT_DEMUX_PRIVATE_TAG);
1393 for (i = 0; i < num_tags; ++i) {
1394 GstSample *sample = NULL;
1396 const GstStructure *s;
1398 if (!gst_tag_list_get_sample_index (list, GST_QT_DEMUX_PRIVATE_TAG, i,
1401 buf = gst_sample_get_buffer (sample);
1403 if (buf && (s = gst_sample_get_info (sample))) {
1404 const gchar *style = NULL;
1407 gst_buffer_map (buf, &map, GST_MAP_READ);
1408 GST_DEBUG_OBJECT (qtmux,
1409 "Found private tag %d/%d; size %" G_GSIZE_FORMAT ", info %"
1410 GST_PTR_FORMAT, i, num_tags, map.size, s);
1411 if (s && (style = gst_structure_get_string (s, "style"))) {
1412 /* try to prevent some style tag ending up into another variant
1413 * (todo: make into a list if more cases) */
1414 if ((strcmp (style, "itunes") == 0 &&
1415 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) ||
1416 (strcmp (style, "iso") == 0 &&
1417 qtmux_klass->format == GST_QT_MUX_FORMAT_3GP)) {
1418 GST_DEBUG_OBJECT (qtmux, "Adding private tag");
1419 atom_udta_add_blob_tag (udta, map.data, map.size);
1422 gst_buffer_unmap (buf, &map);
1424 gst_sample_unref (sample);
1432 * Gets the tagsetter iface taglist and puts the known tags
1433 * into the output stream
1436 gst_qt_mux_setup_metadata (GstQTMux * qtmux)
1438 const GstTagList *tags = NULL;
1441 GST_OBJECT_LOCK (qtmux);
1442 if (qtmux->tags_changed) {
1443 tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (qtmux));
1444 qtmux->tags_changed = FALSE;
1446 GST_OBJECT_UNLOCK (qtmux);
1448 GST_LOG_OBJECT (qtmux, "tags: %" GST_PTR_FORMAT, tags);
1450 if (tags && !gst_tag_list_is_empty (tags)) {
1451 GstTagList *copy = gst_tag_list_copy (tags);
1453 GST_DEBUG_OBJECT (qtmux, "Removing bogus tags");
1454 gst_tag_list_remove_tag (copy, GST_TAG_VIDEO_CODEC);
1455 gst_tag_list_remove_tag (copy, GST_TAG_AUDIO_CODEC);
1456 gst_tag_list_remove_tag (copy, GST_TAG_CONTAINER_FORMAT);
1458 GST_DEBUG_OBJECT (qtmux, "Formatting tags");
1459 gst_qt_mux_add_metadata_tags (qtmux, copy, &qtmux->moov->udta);
1460 gst_qt_mux_add_xmp_tags (qtmux, copy);
1461 gst_tag_list_unref (copy);
1463 GST_DEBUG_OBJECT (qtmux, "No new tags received");
1466 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
1467 GstCollectData *cdata = (GstCollectData *) walk->data;
1468 GstQTPad *qpad = (GstQTPad *) cdata;
1469 GstPad *pad = qpad->collect.pad;
1471 if (qpad->tags_changed && qpad->tags) {
1472 GST_DEBUG_OBJECT (pad, "Adding tags");
1473 gst_tag_list_remove_tag (qpad->tags, GST_TAG_CONTAINER_FORMAT);
1474 gst_qt_mux_add_metadata_tags (qtmux, qpad->tags, &qpad->trak->udta);
1475 qpad->tags_changed = FALSE;
1476 GST_DEBUG_OBJECT (pad, "Tags added");
1478 GST_DEBUG_OBJECT (pad, "No new tags received");
1483 static inline GstBuffer *
1484 _gst_buffer_new_take_data (guint8 * data, guint size)
1488 buf = gst_buffer_new ();
1489 gst_buffer_append_memory (buf,
1490 gst_memory_new_wrapped (0, data, size, 0, size, data, g_free));
1495 static GstFlowReturn
1496 gst_qt_mux_send_buffer (GstQTMux * qtmux, GstBuffer * buf, guint64 * offset,
1502 g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
1504 size = gst_buffer_get_size (buf);
1505 GST_LOG_OBJECT (qtmux, "sending buffer size %" G_GSIZE_FORMAT, size);
1507 if (mind_fast && qtmux->fast_start_file) {
1511 GST_LOG_OBJECT (qtmux, "to temporary file");
1512 gst_buffer_map (buf, &map, GST_MAP_READ);
1513 ret = fwrite (map.data, sizeof (guint8), map.size, qtmux->fast_start_file);
1514 gst_buffer_unmap (buf, &map);
1515 gst_buffer_unref (buf);
1521 GST_LOG_OBJECT (qtmux, "downstream");
1522 res = gst_pad_push (qtmux->srcpad, buf);
1525 if (G_LIKELY (offset))
1533 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1534 ("Failed to write to temporary file"), GST_ERROR_SYSTEM);
1535 return GST_FLOW_ERROR;
1540 gst_qt_mux_seek_to_beginning (FILE * f)
1543 if (fseeko (f, (off_t) 0, SEEK_SET) != 0)
1545 #elif defined (G_OS_UNIX) || defined (G_OS_WIN32)
1546 if (lseek (fileno (f), (off_t) 0, SEEK_SET) == (off_t) - 1)
1549 if (fseek (f, (long) 0, SEEK_SET) != 0)
1555 static GstFlowReturn
1556 gst_qt_mux_send_buffered_data (GstQTMux * qtmux, guint64 * offset)
1558 GstFlowReturn ret = GST_FLOW_OK;
1559 GstBuffer *buf = NULL;
1561 if (fflush (qtmux->fast_start_file))
1564 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1567 /* hm, this could all take a really really long time,
1568 * but there may not be another way to get moov atom first
1569 * (somehow optimize copy?) */
1570 GST_DEBUG_OBJECT (qtmux, "Sending buffered data");
1571 while (ret == GST_FLOW_OK) {
1572 const int bufsize = 4096;
1576 buf = gst_buffer_new_and_alloc (bufsize);
1577 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1578 size = fread (map.data, sizeof (guint8), bufsize, qtmux->fast_start_file);
1580 gst_buffer_unmap (buf, &map);
1583 GST_LOG_OBJECT (qtmux, "Pushing buffered buffer of size %d", (gint) size);
1584 gst_buffer_unmap (buf, &map);
1585 if (size != bufsize)
1586 gst_buffer_set_size (buf, size);
1587 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
1591 gst_buffer_unref (buf);
1593 if (ftruncate (fileno (qtmux->fast_start_file), 0))
1595 if (!gst_qt_mux_seek_to_beginning (qtmux->fast_start_file))
1603 GST_ELEMENT_ERROR (qtmux, RESOURCE, WRITE,
1604 ("Failed to flush temporary file"), GST_ERROR_SYSTEM);
1605 ret = GST_FLOW_ERROR;
1610 GST_ELEMENT_ERROR (qtmux, RESOURCE, SEEK,
1611 ("Failed to seek temporary file"), GST_ERROR_SYSTEM);
1612 ret = GST_FLOW_ERROR;
1617 /* clear descriptor so we don't remove temp file later on,
1618 * might be possible to recover */
1619 fclose (qtmux->fast_start_file);
1620 qtmux->fast_start_file = NULL;
1626 * Sends the initial mdat atom fields (size fields and fourcc type),
1627 * the subsequent buffers are considered part of it's data.
1628 * As we can't predict the amount of data that we are going to place in mdat
1629 * we need to record the position of the size field in the stream so we can
1630 * seek back to it later and update when the streams have finished.
1632 static GstFlowReturn
1633 gst_qt_mux_send_mdat_header (GstQTMux * qtmux, guint64 * off, guint64 size,
1634 gboolean extended, gboolean fsync_after)
1639 GST_DEBUG_OBJECT (qtmux, "Sending mdat's atom header, "
1640 "size %" G_GUINT64_FORMAT, size);
1642 /* if the qtmux state is EOS, really write the mdat, otherwise
1643 * allow size == 0 for a placeholder atom */
1644 if (qtmux->state == GST_QT_MUX_STATE_EOS || size > 0)
1648 gboolean large_file = (size > MDAT_LARGE_FILE_LIMIT);
1649 /* Always write 16-bytes, but put a free atom first
1650 * if the size is < 4GB. */
1651 buf = gst_buffer_new_and_alloc (16);
1652 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1655 /* Write extended mdat header and large_size field */
1656 GST_WRITE_UINT32_BE (map.data, 1);
1657 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1658 GST_WRITE_UINT64_BE (map.data + 8, size + 8);
1660 /* Write an empty free atom, then standard 32-bit mdat */
1661 GST_WRITE_UINT32_BE (map.data, 8);
1662 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_free);
1663 GST_WRITE_UINT32_BE (map.data + 8, size);
1664 GST_WRITE_UINT32_LE (map.data + 12, FOURCC_mdat);
1666 gst_buffer_unmap (buf, &map);
1668 buf = gst_buffer_new_and_alloc (8);
1669 gst_buffer_map (buf, &map, GST_MAP_WRITE);
1671 /* Vanilla 32-bit mdat */
1672 GST_WRITE_UINT32_BE (map.data, size);
1673 GST_WRITE_UINT32_LE (map.data + 4, FOURCC_mdat);
1674 gst_buffer_unmap (buf, &map);
1677 GST_LOG_OBJECT (qtmux, "Pushing mdat header");
1679 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1681 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1686 * We get the position of the mdat size field, seek back to it
1687 * and overwrite with the real value
1689 static GstFlowReturn
1690 gst_qt_mux_update_mdat_size (GstQTMux * qtmux, guint64 mdat_pos,
1691 guint64 mdat_size, guint64 * offset, gboolean fsync_after)
1695 /* We must have recorded the mdat position for this to work */
1696 g_assert (mdat_pos != 0);
1698 /* seek and rewrite the header */
1699 gst_segment_init (&segment, GST_FORMAT_BYTES);
1700 segment.start = mdat_pos;
1701 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1703 return gst_qt_mux_send_mdat_header (qtmux, offset, mdat_size, TRUE,
1707 static GstFlowReturn
1708 gst_qt_mux_send_ftyp (GstQTMux * qtmux, guint64 * off)
1711 guint64 size = 0, offset = 0;
1712 guint8 *data = NULL;
1714 GST_DEBUG_OBJECT (qtmux, "Sending ftyp atom");
1716 if (!atom_ftyp_copy_data (qtmux->ftyp, &data, &size, &offset))
1717 goto serialize_error;
1719 buf = _gst_buffer_new_take_data (data, offset);
1721 GST_LOG_OBJECT (qtmux, "Pushing ftyp");
1722 return gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1727 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1728 ("Failed to serialize ftyp"));
1729 return GST_FLOW_ERROR;
1734 gst_qt_mux_prepare_ftyp (GstQTMux * qtmux, AtomFTYP ** p_ftyp,
1735 GstBuffer ** p_prefix)
1737 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
1738 guint32 major, version;
1740 GstBuffer *prefix = NULL;
1741 AtomFTYP *ftyp = NULL;
1743 GST_DEBUG_OBJECT (qtmux, "Preparing ftyp and possible prefix atom");
1745 /* init and send context and ftyp based on current property state */
1746 gst_qt_mux_map_format_to_header (qtmux_klass->format, &prefix, &major,
1747 &version, &comp, qtmux->moov, qtmux->longest_chunk,
1748 qtmux->fast_start_file != NULL);
1749 ftyp = atom_ftyp_new (qtmux->context, major, version, comp);
1756 gst_buffer_unref (prefix);
1761 static GstFlowReturn
1762 gst_qt_mux_prepare_and_send_ftyp (GstQTMux * qtmux)
1764 GstFlowReturn ret = GST_FLOW_OK;
1765 GstBuffer *prefix = NULL;
1767 GST_DEBUG_OBJECT (qtmux, "Preparing to send ftyp atom");
1769 /* init and send context and ftyp based on current property state */
1771 atom_ftyp_free (qtmux->ftyp);
1774 gst_qt_mux_prepare_ftyp (qtmux, &qtmux->ftyp, &prefix);
1776 ret = gst_qt_mux_send_buffer (qtmux, prefix, &qtmux->header_size, FALSE);
1777 if (ret != GST_FLOW_OK)
1780 return gst_qt_mux_send_ftyp (qtmux, &qtmux->header_size);
1784 gst_qt_mux_set_header_on_caps (GstQTMux * mux, GstBuffer * buf)
1786 GstStructure *structure;
1787 GValue array = { 0 };
1788 GValue value = { 0 };
1789 GstCaps *caps, *tcaps;
1791 tcaps = gst_pad_get_current_caps (mux->srcpad);
1792 caps = gst_caps_copy (tcaps);
1793 gst_caps_unref (tcaps);
1795 structure = gst_caps_get_structure (caps, 0);
1797 g_value_init (&array, GST_TYPE_ARRAY);
1799 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
1800 g_value_init (&value, GST_TYPE_BUFFER);
1801 gst_value_take_buffer (&value, gst_buffer_ref (buf));
1802 gst_value_array_append_value (&array, &value);
1803 g_value_unset (&value);
1805 gst_structure_set_value (structure, "streamheader", &array);
1806 g_value_unset (&array);
1807 gst_pad_set_caps (mux->srcpad, caps);
1808 gst_caps_unref (caps);
1812 * Write out a free space atom. The offset is adjusted by the full
1813 * size, but a smaller buffer is sent
1815 static GstFlowReturn
1816 gst_qt_mux_send_free_atom (GstQTMux * qtmux, guint64 * off, guint32 size,
1817 gboolean fsync_after)
1821 guint8 *data = NULL;
1822 guint64 offset = 0, bsize = 0;
1825 GST_DEBUG_OBJECT (qtmux, "Sending free atom header of size %u", size);
1827 /* We can't make a free space atom smaller than the header */
1831 node_header = g_malloc0 (sizeof (Atom));
1832 node_header->type = FOURCC_free;
1833 node_header->size = size;
1836 if (atom_copy_data (node_header, &data, &bsize, &offset) == 0)
1837 goto serialize_error;
1839 buf = _gst_buffer_new_take_data (data, offset);
1840 g_free (node_header);
1843 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1845 GST_LOG_OBJECT (qtmux, "Pushing free atom");
1846 ret = gst_qt_mux_send_buffer (qtmux, buf, off, FALSE);
1853 /* Make sure downstream position ends up at the end of this free box */
1854 gst_segment_init (&segment, GST_FORMAT_BYTES);
1855 segment.start = *off;
1856 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
1864 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1865 ("Not enough free reserved space"));
1866 return GST_FLOW_ERROR;
1870 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
1871 ("Failed to serialize mdat"));
1872 g_free (node_header);
1873 return GST_FLOW_ERROR;
1878 gst_qt_mux_configure_moov (GstQTMux * qtmux)
1880 gboolean fragmented = FALSE;
1883 GST_OBJECT_LOCK (qtmux);
1884 timescale = qtmux->timescale;
1885 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED ||
1886 qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE)
1888 GST_OBJECT_UNLOCK (qtmux);
1890 /* inform lower layers of our property wishes, and determine duration.
1891 * Let moov take care of this using its list of traks;
1892 * so that released pads are also included */
1893 GST_DEBUG_OBJECT (qtmux, "Updating timescale to %" G_GUINT32_FORMAT,
1895 atom_moov_update_timescale (qtmux->moov, timescale);
1896 atom_moov_set_fragmented (qtmux->moov, fragmented);
1898 atom_moov_update_duration (qtmux->moov);
1901 static GstFlowReturn
1902 gst_qt_mux_send_moov (GstQTMux * qtmux, guint64 * _offset,
1903 guint64 padded_moov_size, gboolean mind_fast, gboolean fsync_after)
1905 guint64 offset = 0, size = 0;
1908 GstFlowReturn ret = GST_FLOW_OK;
1910 /* serialize moov */
1913 GST_LOG_OBJECT (qtmux, "Copying movie header into buffer");
1914 if (!atom_moov_copy_data (qtmux->moov, &data, &size, &offset))
1915 goto serialize_error;
1916 qtmux->last_moov_size = offset;
1918 /* Check we have enough reserved space for this and a Free atom */
1919 if (padded_moov_size > 0 && offset + 8 > padded_moov_size)
1920 goto too_small_reserved;
1921 buf = _gst_buffer_new_take_data (data, offset);
1922 GST_DEBUG_OBJECT (qtmux, "Pushing moov atoms");
1924 /* If at EOS, this is the final moov, put in the streamheader
1925 * (apparently used by a flumotion util) */
1926 if (qtmux->state == GST_QT_MUX_STATE_EOS)
1927 gst_qt_mux_set_header_on_caps (qtmux, buf);
1930 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_SYNC_AFTER);
1931 ret = gst_qt_mux_send_buffer (qtmux, buf, _offset, mind_fast);
1933 /* Write out a free atom if needed */
1934 if (ret == GST_FLOW_OK && offset < padded_moov_size) {
1935 GST_LOG_OBJECT (qtmux, "Writing out free atom of size %u",
1936 (guint32) (padded_moov_size - offset));
1938 gst_qt_mux_send_free_atom (qtmux, _offset, padded_moov_size - offset,
1945 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
1946 ("Not enough free reserved header space"),
1947 ("Needed %" G_GUINT64_FORMAT " bytes, reserved %" G_GUINT64_FORMAT,
1948 offset, padded_moov_size));
1949 return GST_FLOW_ERROR;
1954 return GST_FLOW_ERROR;
1958 /* either calculates size of extra atoms or pushes them */
1959 static GstFlowReturn
1960 gst_qt_mux_send_extra_atoms (GstQTMux * qtmux, gboolean send, guint64 * offset,
1964 guint64 loffset = 0, size = 0;
1966 GstFlowReturn ret = GST_FLOW_OK;
1968 for (walk = qtmux->extra_atoms; walk; walk = g_slist_next (walk)) {
1969 AtomInfo *ainfo = (AtomInfo *) walk->data;
1973 if (!ainfo->copy_data_func (ainfo->atom,
1974 send ? &data : NULL, &size, &loffset))
1975 goto serialize_error;
1980 GST_DEBUG_OBJECT (qtmux,
1981 "Pushing extra top-level atom %" GST_FOURCC_FORMAT,
1982 GST_FOURCC_ARGS (ainfo->atom->type));
1983 buf = _gst_buffer_new_take_data (data, loffset);
1984 ret = gst_qt_mux_send_buffer (qtmux, buf, offset, FALSE);
1985 if (ret != GST_FLOW_OK)
1998 return GST_FLOW_ERROR;
2003 gst_qt_mux_downstream_is_seekable (GstQTMux * qtmux)
2005 gboolean seekable = FALSE;
2006 GstQuery *query = gst_query_new_seeking (GST_FORMAT_BYTES);
2008 if (gst_pad_peer_query (qtmux->srcpad, query)) {
2009 gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
2010 GST_INFO_OBJECT (qtmux, "downstream is %sseekable", seekable ? "" : "not ");
2012 /* have to assume seeking is not supported if query not handled downstream */
2013 GST_WARNING_OBJECT (qtmux, "downstream did not handle seeking query");
2016 gst_query_unref (query);
2022 gst_qt_mux_prepare_moov_recovery (GstQTMux * qtmux)
2025 gboolean fail = FALSE;
2026 AtomFTYP *ftyp = NULL;
2027 GstBuffer *prefix = NULL;
2029 GST_DEBUG_OBJECT (qtmux, "Openning moov recovery file: %s",
2030 qtmux->moov_recov_file_path);
2032 qtmux->moov_recov_file = g_fopen (qtmux->moov_recov_file_path, "wb+");
2033 if (qtmux->moov_recov_file == NULL) {
2034 GST_WARNING_OBJECT (qtmux, "Failed to open moov recovery file in %s",
2035 qtmux->moov_recov_file_path);
2039 gst_qt_mux_prepare_ftyp (qtmux, &ftyp, &prefix);
2041 if (!atoms_recov_write_headers (qtmux->moov_recov_file, ftyp, prefix,
2042 qtmux->moov, qtmux->timescale, g_slist_length (qtmux->sinkpads))) {
2043 GST_WARNING_OBJECT (qtmux, "Failed to write moov recovery file " "headers");
2047 atom_ftyp_free (ftyp);
2049 gst_buffer_unref (prefix);
2051 for (walk = qtmux->sinkpads; walk && !fail; walk = g_slist_next (walk)) {
2052 GstCollectData *cdata = (GstCollectData *) walk->data;
2053 GstQTPad *qpad = (GstQTPad *) cdata;
2054 /* write info for each stream */
2055 fail = atoms_recov_write_trak_info (qtmux->moov_recov_file, qpad->trak);
2057 GST_WARNING_OBJECT (qtmux, "Failed to write trak info to recovery "
2065 fclose (qtmux->moov_recov_file);
2066 qtmux->moov_recov_file = NULL;
2067 GST_WARNING_OBJECT (qtmux, "An error was detected while writing to "
2068 "recover file, moov recovery won't work");
2071 static GstFlowReturn
2072 gst_qt_mux_start_file (GstQTMux * qtmux)
2074 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
2075 GstFlowReturn ret = GST_FLOW_OK;
2079 GstClockTime reserved_max_duration;
2080 guint reserved_bytes_per_sec_per_trak;
2082 GST_DEBUG_OBJECT (qtmux, "starting file");
2084 GST_OBJECT_LOCK (qtmux);
2085 reserved_max_duration = qtmux->reserved_max_duration;
2086 reserved_bytes_per_sec_per_trak = qtmux->reserved_bytes_per_sec_per_trak;
2087 GST_OBJECT_UNLOCK (qtmux);
2089 /* stream-start (FIXME: create id based on input ids) */
2090 g_snprintf (s_id, sizeof (s_id), "qtmux-%08x", g_random_int ());
2091 gst_pad_push_event (qtmux->srcpad, gst_event_new_stream_start (s_id));
2093 caps = gst_caps_copy (gst_pad_get_pad_template_caps (qtmux->srcpad));
2094 /* qtmux has structure with and without variant, remove all but the first */
2095 while (gst_caps_get_size (caps) > 1)
2096 gst_caps_remove_structure (caps, 1);
2097 gst_pad_set_caps (qtmux->srcpad, caps);
2098 gst_caps_unref (caps);
2100 /* Default is 'normal' mode */
2101 qtmux->mux_mode = GST_QT_MUX_MODE_MOOV_AT_END;
2103 /* Require a sensible fragment duration when muxing
2104 * using the ISML muxer */
2105 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML &&
2106 qtmux->fragment_duration == 0)
2109 if (qtmux->fragment_duration > 0) {
2110 if (qtmux->streamable)
2111 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE;
2113 qtmux->mux_mode = GST_QT_MUX_MODE_FRAGMENTED;
2114 } else if (qtmux->fast_start) {
2115 qtmux->mux_mode = GST_QT_MUX_MODE_FAST_START;
2116 } else if (reserved_max_duration != GST_CLOCK_TIME_NONE) {
2117 qtmux->mux_mode = GST_QT_MUX_MODE_ROBUST_RECORDING;
2120 switch (qtmux->mux_mode) {
2121 case GST_QT_MUX_MODE_MOOV_AT_END:
2122 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2123 /* We have to be able to seek to rewrite the mdat header, or any
2124 * moov atom we write will not be visible in the file, because an
2125 * MDAT with 0 as the size covers the rest of the file. A file
2126 * with no moov is not playable, so error out now. */
2127 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2128 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2129 ("Downstream is not seekable - will not be able to create a playable file"),
2131 return GST_FLOW_ERROR;
2134 case GST_QT_MUX_MODE_FAST_START:
2135 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2136 break; /* Don't need seekability, ignore */
2137 case GST_QT_MUX_MODE_FRAGMENTED:
2138 if (!gst_qt_mux_downstream_is_seekable (qtmux)) {
2139 GST_WARNING_OBJECT (qtmux, "downstream is not seekable, but "
2140 "streamable=false. Will ignore that and create streamable output "
2142 qtmux->streamable = TRUE;
2143 g_object_notify (G_OBJECT (qtmux), "streamable");
2148 /* let downstream know we think in BYTES and expect to do seeking later on */
2149 gst_segment_init (&segment, GST_FORMAT_BYTES);
2150 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2152 GST_OBJECT_LOCK (qtmux);
2154 if (qtmux->timescale == 0) {
2155 guint32 suggested_timescale = 0;
2158 /* Calculate a reasonable timescale for the moov:
2159 * If there is video, it is the biggest video track timescale or an even
2160 * multiple of it if it's smaller than 1800.
2161 * Otherwise it is 1800 */
2162 for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
2163 GstCollectData *cdata = (GstCollectData *) walk->data;
2164 GstQTPad *qpad = (GstQTPad *) cdata;
2170 if (!qpad->trak->mdia.minf.vmhd)
2173 suggested_timescale =
2174 MAX (qpad->trak->mdia.mdhd.time_info.timescale, suggested_timescale);
2177 if (suggested_timescale == 0)
2178 suggested_timescale = 1800;
2180 while (suggested_timescale < 1800)
2181 suggested_timescale *= 2;
2183 qtmux->timescale = suggested_timescale;
2186 /* initialize our moov recovery file */
2187 if (qtmux->moov_recov_file_path) {
2188 gst_qt_mux_prepare_moov_recovery (qtmux);
2191 /* Make sure the first time we update the moov, we'll
2192 * include any tagsetter tags */
2193 qtmux->tags_changed = TRUE;
2195 GST_OBJECT_UNLOCK (qtmux);
2198 * send mdat header if already needed, and mark position for later update.
2199 * We don't send ftyp now if we are on fast start mode, because we can
2200 * better fine tune using the information we gather to create the whole moov
2203 switch (qtmux->mux_mode) {
2204 case GST_QT_MUX_MODE_MOOV_AT_END:
2205 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2206 if (ret != GST_FLOW_OK)
2209 /* Store this as the mdat offset for later updating
2210 * when we write the moov */
2211 qtmux->mdat_pos = qtmux->header_size;
2212 /* extended atom in case we go over 4GB while writing and need
2213 * the full 64-bit atom */
2215 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2218 case GST_QT_MUX_MODE_ROBUST_RECORDING:
2220 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2221 if (ret != GST_FLOW_OK)
2224 /* Pad ftyp out to an 8-byte boundary before starting the moov
2225 * ping pong region. It should be well less than 1 disk sector,
2226 * unless there's a bajillion compatible types listed,
2227 * but let's be sure the free atom doesn't cross a sector
2228 * boundary anyway */
2229 if (qtmux->header_size % 8) {
2230 /* Extra 8 bytes for the padding free atom header */
2231 guint padding = (guint) (16 - (qtmux->header_size % 8));
2232 GST_LOG_OBJECT (qtmux, "Rounding ftyp by %u bytes", padding);
2234 gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, padding,
2236 if (ret != GST_FLOW_OK)
2240 /* Store this as the moov offset for later updating.
2241 * We record mdat position below */
2242 qtmux->moov_pos = qtmux->header_size;
2244 /* Set up the initial 'ping' state of the ping-pong buffers */
2245 qtmux->reserved_moov_first_active = TRUE;
2247 gst_qt_mux_configure_moov (qtmux);
2248 gst_qt_mux_setup_metadata (qtmux);
2249 /* Empty free atom to begin, starting on an 8-byte boundary */
2250 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size, 8, FALSE);
2251 if (ret != GST_FLOW_OK)
2253 /* Moov header, not padded yet */
2254 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2255 if (ret != GST_FLOW_OK)
2257 /* The moov we just sent contains the 'base' size of the moov, before
2258 * we put in any time-dependent per-trak data. Use that to make
2259 * a good estimate of how much extra to reserve */
2260 /* Calculate how much space to reserve for our MOOV atom.
2261 * We actually reserve twice that, for ping-pong buffers */
2262 qtmux->base_moov_size = qtmux->last_moov_size;
2263 GST_LOG_OBJECT (qtmux, "Base moov size is %u before any indexes",
2264 qtmux->base_moov_size);
2265 qtmux->reserved_moov_size = qtmux->base_moov_size +
2266 gst_util_uint64_scale (reserved_max_duration,
2267 reserved_bytes_per_sec_per_trak *
2268 atom_moov_get_trak_count (qtmux->moov), GST_SECOND);
2270 /* Need space for at least 4 atom headers. More really, but
2271 * this as an absolute minimum */
2272 if (qtmux->reserved_moov_size < 4 * 8)
2273 goto reserved_moov_too_small;
2275 GST_DEBUG_OBJECT (qtmux, "reserving header area of size %u",
2276 2 * qtmux->reserved_moov_size + 16);
2278 GST_OBJECT_LOCK (qtmux);
2279 qtmux->reserved_duration_remaining =
2280 gst_util_uint64_scale (qtmux->reserved_moov_size -
2281 qtmux->base_moov_size, GST_SECOND,
2282 reserved_bytes_per_sec_per_trak *
2283 atom_moov_get_trak_count (qtmux->moov));
2284 GST_OBJECT_UNLOCK (qtmux);
2286 /* Now that we know how much reserved space is targetted,
2287 * output a free atom to fill the extra reserved */
2288 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2289 qtmux->reserved_moov_size - qtmux->base_moov_size, FALSE);
2290 if (ret != GST_FLOW_OK)
2293 /* Then a free atom containing 'pong' buffer, with an
2294 * extra 8 bytes to account for the free atom header itself */
2295 ret = gst_qt_mux_send_free_atom (qtmux, &qtmux->header_size,
2296 qtmux->reserved_moov_size + 8, FALSE);
2297 if (ret != GST_FLOW_OK)
2300 /* extra atoms go after the free/moov(s), before the mdat */
2302 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2303 if (ret != GST_FLOW_OK)
2306 qtmux->mdat_pos = qtmux->header_size;
2307 /* extended atom in case we go over 4GB while writing and need
2308 * the full 64-bit atom */
2310 gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, 0, TRUE,
2313 case GST_QT_MUX_MODE_FAST_START:
2314 GST_OBJECT_LOCK (qtmux);
2315 qtmux->fast_start_file = g_fopen (qtmux->fast_start_file_path, "wb+");
2316 if (!qtmux->fast_start_file)
2318 GST_OBJECT_UNLOCK (qtmux);
2319 /* send a dummy buffer for preroll */
2320 ret = gst_qt_mux_send_buffer (qtmux, gst_buffer_new (), NULL, FALSE);
2322 case GST_QT_MUX_MODE_FRAGMENTED:
2323 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
2324 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2325 if (ret != GST_FLOW_OK)
2327 /* store the moov pos so we can update the duration later
2328 * in non-streamable mode */
2329 qtmux->moov_pos = qtmux->header_size;
2331 GST_DEBUG_OBJECT (qtmux, "fragment duration %d ms, writing headers",
2332 qtmux->fragment_duration);
2333 /* also used as snapshot marker to indicate fragmented file */
2334 qtmux->fragment_sequence = 1;
2335 /* prepare moov and/or tags */
2336 gst_qt_mux_configure_moov (qtmux);
2337 gst_qt_mux_setup_metadata (qtmux);
2338 ret = gst_qt_mux_send_moov (qtmux, &qtmux->header_size, 0, FALSE, FALSE);
2339 if (ret != GST_FLOW_OK)
2343 gst_qt_mux_send_extra_atoms (qtmux, TRUE, &qtmux->header_size, FALSE);
2344 if (ret != GST_FLOW_OK)
2346 /* prepare index if not streamable */
2347 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED)
2348 qtmux->mfra = atom_mfra_new (qtmux->context);
2356 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2357 ("Cannot create an ISML file with 0 fragment duration"), (NULL));
2358 return GST_FLOW_ERROR;
2360 reserved_moov_too_small:
2362 GST_ELEMENT_ERROR (qtmux, STREAM, MUX,
2363 ("Not enough reserved space for creating headers"), (NULL));
2364 return GST_FLOW_ERROR;
2368 GST_ELEMENT_ERROR (qtmux, RESOURCE, OPEN_READ_WRITE,
2369 (("Could not open temporary file \"%s\""),
2370 qtmux->fast_start_file_path), GST_ERROR_SYSTEM);
2371 GST_OBJECT_UNLOCK (qtmux);
2372 return GST_FLOW_ERROR;
2376 static GstFlowReturn
2377 gst_qt_mux_send_last_buffers (GstQTMux * qtmux)
2379 GstFlowReturn ret = GST_FLOW_OK;
2382 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2383 GstCollectData *cdata = (GstCollectData *) walk->data;
2384 GstQTPad *qtpad = (GstQTPad *) cdata;
2386 /* avoid add_buffer complaining if not negotiated
2387 * in which case no buffers either, so skipping */
2388 if (!qtpad->fourcc) {
2389 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2390 GST_PAD_NAME (qtpad->collect.pad));
2394 /* send last buffer; also flushes possibly queued buffers/ts */
2395 GST_DEBUG_OBJECT (qtmux, "Sending the last buffer for pad %s",
2396 GST_PAD_NAME (qtpad->collect.pad));
2397 ret = gst_qt_mux_add_buffer (qtmux, qtpad, NULL);
2398 if (ret != GST_FLOW_OK) {
2399 GST_WARNING_OBJECT (qtmux, "Failed to send last buffer for %s, "
2400 "flow return: %s", GST_PAD_NAME (qtpad->collect.pad),
2401 gst_flow_get_name (ret));
2409 gst_qt_mux_update_global_statistics (GstQTMux * qtmux)
2413 /* for setting some subtitles fields */
2414 guint max_width = 0;
2415 guint max_height = 0;
2417 qtmux->first_ts = qtmux->last_dts = GST_CLOCK_TIME_NONE;
2419 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2420 GstCollectData *cdata = (GstCollectData *) walk->data;
2421 GstQTPad *qtpad = (GstQTPad *) cdata;
2423 if (!qtpad->fourcc) {
2424 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2425 GST_PAD_NAME (qtpad->collect.pad));
2429 /* having flushed above, can check for buffers now */
2430 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2431 /* determine max stream duration */
2432 if (!GST_CLOCK_TIME_IS_VALID (qtmux->last_dts)
2433 || qtpad->last_dts > qtmux->last_dts) {
2434 qtmux->last_dts = qtpad->last_dts;
2436 if (!GST_CLOCK_TIME_IS_VALID (qtmux->first_ts)
2437 || qtpad->first_ts < qtmux->first_ts) {
2438 qtmux->first_ts = qtpad->first_ts;
2442 /* subtitles need to know the video width/height,
2443 * it is stored shifted 16 bits to the left according to the
2445 max_width = MAX (max_width, (qtpad->trak->tkhd.width >> 16));
2446 max_height = MAX (max_height, (qtpad->trak->tkhd.height >> 16));
2448 /* update average bitrate of streams if needed */
2450 guint32 avgbitrate = 0;
2451 guint32 maxbitrate = qtpad->max_bitrate;
2453 if (qtpad->avg_bitrate)
2454 avgbitrate = qtpad->avg_bitrate;
2455 else if (qtpad->total_duration > 0)
2456 avgbitrate = (guint32) gst_util_uint64_scale_round (qtpad->total_bytes,
2457 8 * GST_SECOND, qtpad->total_duration);
2459 atom_trak_update_bitrates (qtpad->trak, avgbitrate, maxbitrate);
2463 /* need to update values on subtitle traks now that we know the
2464 * max width and height */
2465 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2466 GstCollectData *cdata = (GstCollectData *) walk->data;
2467 GstQTPad *qtpad = (GstQTPad *) cdata;
2469 if (!qtpad->fourcc) {
2470 GST_DEBUG_OBJECT (qtmux, "Pad %s has never had buffers",
2471 GST_PAD_NAME (qtpad->collect.pad));
2475 if (qtpad->fourcc == FOURCC_tx3g) {
2476 atom_trak_tx3g_update_dimension (qtpad->trak, max_width, max_height);
2481 /* Called after gst_qt_mux_update_global_statistics() updates the
2482 * first_ts tracking, to create/set edit lists for delayed streams */
2484 gst_qt_mux_update_edit_lists (GstQTMux * qtmux)
2488 GST_DEBUG_OBJECT (qtmux, "Media first ts selected: %" GST_TIME_FORMAT,
2489 GST_TIME_ARGS (qtmux->first_ts));
2490 /* add/update EDTSs for late streams. configure_moov will have
2491 * set the trak durations above by summing the sample tables,
2492 * here we extend that if needing to insert an empty segment */
2493 for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
2494 GstCollectData *cdata = (GstCollectData *) walk->data;
2495 GstQTPad *qtpad = (GstQTPad *) cdata;
2497 if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)) {
2498 guint32 lateness = 0;
2499 guint32 duration = qtpad->trak->tkhd.duration;
2502 has_gap = (qtpad->first_ts > (qtmux->first_ts + qtpad->dts_adjustment));
2507 diff = qtpad->first_ts - (qtmux->first_ts + qtpad->dts_adjustment);
2508 lateness = gst_util_uint64_scale_round (diff,
2509 qtmux->timescale, GST_SECOND);
2511 GST_DEBUG_OBJECT (qtmux, "Pad %s is a late stream by %" GST_TIME_FORMAT,
2512 GST_PAD_NAME (qtpad->collect.pad), GST_TIME_ARGS (lateness));
2514 atom_trak_set_elst_entry (qtpad->trak, 0, lateness, (guint32) - 1,
2515 (guint32) (1 * 65536.0));
2519 if (has_gap || (qtpad->dts_adjustment > 0)) {
2520 GstClockTime ctts = 0;
2521 guint32 media_start;
2523 if (qtpad->first_ts > qtpad->first_dts)
2524 ctts = qtpad->first_ts - qtpad->first_dts;
2526 media_start = gst_util_uint64_scale_round (ctts,
2527 atom_trak_get_timescale (qtpad->trak), GST_SECOND);
2529 atom_trak_set_elst_entry (qtpad->trak, 1, duration, media_start,
2530 (guint32) (1 * 65536.0));
2533 /* need to add the empty time to the trak duration */
2534 duration += lateness;
2536 qtpad->trak->tkhd.duration = duration;
2537 if (qtpad->tc_trak) {
2538 qtpad->tc_trak->tkhd.duration = duration;
2539 qtpad->tc_trak->mdia.mdhd.time_info.duration = duration;
2542 /* And possibly grow the moov duration */
2543 if (duration > qtmux->moov->mvhd.time_info.duration) {
2544 qtmux->moov->mvhd.time_info.duration = duration;
2545 qtmux->moov->mvex.mehd.fragment_duration = duration;
2551 static GstFlowReturn
2552 gst_qt_mux_update_timecode (GstQTMux * qtmux)
2557 guint64 offset = qtmux->tc_pos;
2559 g_assert (qtmux->tc_pos != -1);
2561 gst_segment_init (&segment, GST_FORMAT_BYTES);
2562 segment.start = offset;
2563 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2565 buf = gst_buffer_new_and_alloc (4);
2566 gst_buffer_map (buf, &map, GST_MAP_WRITE);
2568 GST_WRITE_UINT32_BE (map.data,
2569 gst_video_time_code_frames_since_daily_jam (qtmux->first_tc));
2570 gst_buffer_unmap (buf, &map);
2572 /* Reset this value, so the timecode won't be re-rewritten */
2575 return gst_qt_mux_send_buffer (qtmux, buf, &offset, FALSE);
2578 static GstFlowReturn
2579 gst_qt_mux_stop_file (GstQTMux * qtmux)
2581 gboolean ret = GST_FLOW_OK;
2582 guint64 offset = 0, size = 0;
2583 gboolean large_file;
2585 GST_DEBUG_OBJECT (qtmux, "Updating remaining values and sending last data");
2587 /* pushing last buffers for each pad */
2588 if ((ret = gst_qt_mux_send_last_buffers (qtmux)) != GST_FLOW_OK)
2591 if (qtmux->mux_mode == GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE) {
2592 /* Streamable mode; no need to write duration or MFRA */
2593 GST_DEBUG_OBJECT (qtmux, "streamable file; nothing to stop");
2597 gst_qt_mux_update_global_statistics (qtmux);
2598 if (qtmux->tc_pos != -1) {
2599 /* File is being stopped and timecode hasn't been updated. Update it now
2600 * with whatever we have */
2601 ret = gst_qt_mux_update_timecode (qtmux);
2602 if (ret != GST_FLOW_OK)
2606 switch (qtmux->mux_mode) {
2607 case GST_QT_MUX_MODE_FRAGMENTED:{
2609 guint8 *data = NULL;
2613 GST_DEBUG_OBJECT (qtmux, "adding mfra");
2614 if (!atom_mfra_copy_data (qtmux->mfra, &data, &size, &offset))
2615 goto serialize_error;
2616 buf = _gst_buffer_new_take_data (data, offset);
2617 ret = gst_qt_mux_send_buffer (qtmux, buf, NULL, FALSE);
2618 if (ret != GST_FLOW_OK)
2621 /* only mvex duration is updated,
2622 * mvhd should be consistent with empty moov
2623 * (but TODO maybe some clients do not handle that well ?) */
2624 qtmux->moov->mvex.mehd.fragment_duration =
2625 gst_util_uint64_scale (qtmux->last_dts, qtmux->timescale, GST_SECOND);
2626 GST_DEBUG_OBJECT (qtmux, "rewriting moov with mvex duration %"
2627 GST_TIME_FORMAT, GST_TIME_ARGS (qtmux->last_dts));
2628 /* seek and rewrite the header */
2629 gst_segment_init (&segment, GST_FORMAT_BYTES);
2630 segment.start = qtmux->moov_pos;
2631 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2632 /* no need to seek back */
2633 return gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2635 case GST_QT_MUX_MODE_ROBUST_RECORDING:{
2636 ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
2637 if (G_UNLIKELY (ret != GST_FLOW_OK))
2639 /* Finalise by writing the final size into the mdat. Up until now
2640 * it's been 0, which means 'rest of the file'
2641 * No need to seek back after this, we won't write any more */
2642 return gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2643 qtmux->mdat_size, NULL, TRUE);
2649 /* Moov-at-end or fast-start mode from here down */
2650 gst_qt_mux_configure_moov (qtmux);
2652 gst_qt_mux_update_edit_lists (qtmux);
2654 /* tags into file metadata */
2655 gst_qt_mux_setup_metadata (qtmux);
2657 large_file = (qtmux->mdat_size > MDAT_LARGE_FILE_LIMIT);
2659 switch (qtmux->mux_mode) {
2660 case GST_QT_MUX_MODE_FAST_START:{
2661 /* if faststart, update the offset of the atoms in the movie with the offset
2662 * that the movie headers before mdat will cause.
2663 * Also, send the ftyp */
2666 ret = gst_qt_mux_prepare_and_send_ftyp (qtmux);
2667 if (ret != GST_FLOW_OK) {
2670 /* copy into NULL to obtain size */
2671 if (!atom_moov_copy_data (qtmux->moov, NULL, &size, &offset))
2672 goto serialize_error;
2673 GST_DEBUG_OBJECT (qtmux, "calculated moov atom size %" G_GUINT64_FORMAT,
2675 offset += qtmux->header_size + (large_file ? 16 : 8);
2677 /* sum up with the extra atoms size */
2678 ret = gst_qt_mux_send_extra_atoms (qtmux, FALSE, &offset, FALSE);
2679 if (ret != GST_FLOW_OK)
2684 offset = qtmux->header_size;
2688 /* Now that we know the size of moov + extra atoms, we can adjust
2689 * the chunk offsets stored into the moov */
2690 atom_moov_chunks_set_offset (qtmux->moov, offset);
2692 /* write out moov and extra atoms */
2693 /* note: as of this point, we no longer care about tracking written data size,
2694 * since there is no more use for it anyway */
2695 ret = gst_qt_mux_send_moov (qtmux, NULL, 0, FALSE, FALSE);
2696 if (ret != GST_FLOW_OK)
2700 ret = gst_qt_mux_send_extra_atoms (qtmux, TRUE, NULL, FALSE);
2701 if (ret != GST_FLOW_OK)
2704 switch (qtmux->mux_mode) {
2705 case GST_QT_MUX_MODE_MOOV_AT_END:
2707 /* mdat needs update iff not using faststart */
2708 GST_DEBUG_OBJECT (qtmux, "updating mdat size");
2709 ret = gst_qt_mux_update_mdat_size (qtmux, qtmux->mdat_pos,
2710 qtmux->mdat_size, NULL, FALSE);
2711 /* note; no seeking back to the end of file is done,
2712 * since we no longer write anything anyway */
2715 case GST_QT_MUX_MODE_FAST_START:
2717 /* send mdat atom and move buffered data into it */
2718 /* mdat_size = accumulated (buffered data) */
2719 ret = gst_qt_mux_send_mdat_header (qtmux, NULL, qtmux->mdat_size,
2721 if (ret != GST_FLOW_OK)
2723 ret = gst_qt_mux_send_buffered_data (qtmux, NULL);
2724 if (ret != GST_FLOW_OK)
2729 g_assert_not_reached ();
2737 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
2738 ("Failed to serialize moov"));
2739 return GST_FLOW_ERROR;
2743 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Failed to send ftyp"));
2744 return GST_FLOW_ERROR;
2748 static GstFlowReturn
2749 gst_qt_mux_pad_fragment_add_buffer (GstQTMux * qtmux, GstQTPad * pad,
2750 GstBuffer * buf, gboolean force, guint32 nsamples, gint64 dts,
2751 guint32 delta, guint32 size, gboolean sync, gint64 pts_offset)
2753 GstFlowReturn ret = GST_FLOW_OK;
2755 /* setup if needed */
2756 if (G_UNLIKELY (!pad->traf || force))
2760 /* flush pad fragment if threshold reached,
2761 * or at new keyframe if we should be minding those in the first place */
2762 if (G_UNLIKELY (force || (sync && pad->sync) ||
2763 pad->fragment_duration < (gint64) delta)) {
2765 guint64 size = 0, offset = 0;
2766 guint8 *data = NULL;
2768 guint i, total_size;
2770 /* now we know where moof ends up, update offset in tfra */
2772 atom_tfra_update_offset (pad->tfra, qtmux->header_size);
2774 moof = atom_moof_new (qtmux->context, qtmux->fragment_sequence);
2775 /* takes ownership */
2776 atom_moof_add_traf (moof, pad->traf);
2778 atom_moof_copy_data (moof, &data, &size, &offset);
2779 buffer = _gst_buffer_new_take_data (data, offset);
2780 GST_LOG_OBJECT (qtmux, "writing moof size %" G_GSIZE_FORMAT,
2781 gst_buffer_get_size (buffer));
2782 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->header_size, FALSE);
2784 /* and actual data */
2786 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2788 gst_buffer_get_size (atom_array_index (&pad->fragment_buffers, i));
2791 GST_LOG_OBJECT (qtmux, "writing %d buffers, total_size %d",
2792 atom_array_get_len (&pad->fragment_buffers), total_size);
2793 if (ret == GST_FLOW_OK)
2794 ret = gst_qt_mux_send_mdat_header (qtmux, &qtmux->header_size, total_size,
2796 for (i = 0; i < atom_array_get_len (&pad->fragment_buffers); i++) {
2797 if (G_LIKELY (ret == GST_FLOW_OK))
2798 ret = gst_qt_mux_send_buffer (qtmux,
2799 atom_array_index (&pad->fragment_buffers, i), &qtmux->header_size,
2802 gst_buffer_unref (atom_array_index (&pad->fragment_buffers, i));
2805 atom_array_clear (&pad->fragment_buffers);
2806 atom_moof_free (moof);
2807 qtmux->fragment_sequence++;
2812 if (G_UNLIKELY (!pad->traf)) {
2813 GST_LOG_OBJECT (qtmux, "setting up new fragment");
2814 pad->traf = atom_traf_new (qtmux->context, atom_trak_get_id (pad->trak));
2815 atom_array_init (&pad->fragment_buffers, 512);
2816 pad->fragment_duration = gst_util_uint64_scale (qtmux->fragment_duration,
2817 atom_trak_get_timescale (pad->trak), 1000);
2819 if (G_UNLIKELY (qtmux->mfra && !pad->tfra)) {
2820 pad->tfra = atom_tfra_new (qtmux->context, atom_trak_get_id (pad->trak));
2821 atom_mfra_add_tfra (qtmux->mfra, pad->tfra);
2825 /* add buffer and metadata */
2826 atom_traf_add_samples (pad->traf, delta, size, sync, pts_offset,
2828 atom_array_append (&pad->fragment_buffers, buf, 256);
2829 pad->fragment_duration -= delta;
2832 guint32 sn = atom_traf_get_sample_num (pad->traf);
2834 if ((sync && pad->sync) || (sn == 1 && !pad->sync))
2835 atom_tfra_add_entry (pad->tfra, dts, sn);
2838 if (G_UNLIKELY (force))
2844 /* Here's the clever bit of robust recording: Updating the moov
2845 * header is done using a ping-pong scheme inside 2 blocks of size
2846 * 'reserved_moov_size' at the start of the file, in such a way that the
2847 * file on-disk is always valid if interrupted.
2848 * Inside the reserved space, we have 2 pairs of free + moov atoms
2849 * (in that order), free-A + moov-A @ offset 0 and free-B + moov-B at
2850 * at offset "reserved_moov_size".
2852 * 1. Free-A has 0 size payload, moov-A immediately after is
2853 * active/current, and is padded with an internal Free atom to
2854 * end at reserved_space/2. Free-B is at reserved_space/2, sized
2855 * to cover the remaining free space (including moov-B).
2856 * 2. We write moov-B (which is invisible inside free-B), and pad it to
2857 * end at the end of free space. Then, we update free-A to size
2858 * reserved_space/2 + sizeof(free-B), which hides moov-A and the
2859 * free-B header, and makes moov-B active.
2860 * 3. Rewrite moov-A inside free-A, with padding out to free-B.
2861 * Change the size of free-A to make moov-A active again.
2862 * 4. Rinse and repeat.
2865 static GstFlowReturn
2866 gst_qt_mux_robust_recording_rewrite_moov (GstQTMux * qtmux)
2870 guint64 freeA_offset;
2871 guint32 new_freeA_size;
2872 guint64 new_moov_offset;
2874 /* Update moov info, then seek and rewrite the MOOV atom */
2875 gst_qt_mux_update_global_statistics (qtmux);
2876 gst_qt_mux_configure_moov (qtmux);
2878 gst_qt_mux_update_edit_lists (qtmux);
2880 /* tags into file metadata */
2881 gst_qt_mux_setup_metadata (qtmux);
2883 /* chunks position is set relative to the first byte of the
2884 * MDAT atom payload. Set the overall offset into the file */
2885 atom_moov_chunks_set_offset (qtmux->moov, qtmux->header_size);
2887 /* Calculate which moov to rewrite. qtmux->moov_pos points to
2888 * the start of the free-A header */
2889 freeA_offset = qtmux->moov_pos;
2890 if (qtmux->reserved_moov_first_active) {
2891 GST_DEBUG_OBJECT (qtmux, "Updating pong moov header");
2892 /* After this, freeA will include itself, moovA, plus the freeB
2894 new_freeA_size = qtmux->reserved_moov_size + 16;
2896 GST_DEBUG_OBJECT (qtmux, "Updating ping moov header");
2899 /* the moov we update is after free-A, calculate its offset */
2900 new_moov_offset = freeA_offset + new_freeA_size;
2902 /* Swap ping-pong cadence marker */
2903 qtmux->reserved_moov_first_active = !qtmux->reserved_moov_first_active;
2905 /* seek and rewrite the MOOV atom */
2906 gst_segment_init (&segment, GST_FORMAT_BYTES);
2907 segment.start = new_moov_offset;
2908 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2911 gst_qt_mux_send_moov (qtmux, NULL, qtmux->reserved_moov_size, FALSE,
2913 if (ret != GST_FLOW_OK)
2916 /* Update the estimated recording space remaining, based on amount used so
2917 * far and duration muxed so far */
2918 if (qtmux->last_moov_size > qtmux->base_moov_size && qtmux->last_dts > 0) {
2919 GstClockTime remain;
2920 GstClockTime time_muxed = qtmux->last_dts;
2923 gst_util_uint64_scale (qtmux->reserved_moov_size -
2924 qtmux->last_moov_size, time_muxed,
2925 qtmux->last_moov_size - qtmux->base_moov_size);
2926 /* Always under-estimate slightly, so users
2927 * have time to stop muxing before we run out */
2928 if (remain < GST_SECOND / 2)
2931 remain -= GST_SECOND / 2;
2933 GST_INFO_OBJECT (qtmux,
2934 "Reserved %u header bytes. Used %u in %" GST_TIME_FORMAT
2935 ". Remaining now %u or approx %" G_GUINT64_FORMAT " ns\n",
2936 qtmux->reserved_moov_size, qtmux->last_moov_size,
2937 GST_TIME_ARGS (qtmux->last_dts),
2938 qtmux->reserved_moov_size - qtmux->last_moov_size, remain);
2940 GST_OBJECT_LOCK (qtmux);
2941 qtmux->reserved_duration_remaining = remain;
2942 qtmux->muxed_since_last_update = 0;
2943 GST_DEBUG_OBJECT (qtmux, "reserved remaining duration now %"
2944 G_GUINT64_FORMAT, qtmux->reserved_duration_remaining);
2945 GST_OBJECT_UNLOCK (qtmux);
2949 /* Now update the moov-A size. Don't pass offset, since we don't need
2950 * send_free_atom() to seek for us - all our callers seek back to
2951 * where they need after this, or they don't need it */
2952 gst_segment_init (&segment, GST_FORMAT_BYTES);
2953 segment.start = freeA_offset;
2954 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
2956 ret = gst_qt_mux_send_free_atom (qtmux, NULL, new_freeA_size, TRUE);
2961 static GstFlowReturn
2962 gst_qt_mux_robust_recording_update (GstQTMux * qtmux, GstClockTime position)
2965 GstFlowReturn flow_ret;
2967 guint64 mdat_offset = qtmux->mdat_pos + 16 + qtmux->mdat_size;
2969 GST_OBJECT_LOCK (qtmux);
2970 if (qtmux->reserved_moov_update_period == GST_CLOCK_TIME_NONE) {
2971 GST_OBJECT_UNLOCK (qtmux);
2975 /* Update if position is > the threshold or there's been no update yet */
2976 if (qtmux->last_moov_update != GST_CLOCK_TIME_NONE &&
2977 (position <= qtmux->last_moov_update ||
2978 (position - qtmux->last_moov_update) <
2979 qtmux->reserved_moov_update_period)) {
2980 /* Update the offset of how much we've muxed, so the
2981 * report of remaining space keeps counting down */
2982 if (position > qtmux->last_moov_update &&
2983 position - qtmux->last_moov_update > qtmux->muxed_since_last_update) {
2984 GST_LOG_OBJECT (qtmux,
2985 "Muxed time %" G_GUINT64_FORMAT " since last moov update",
2986 qtmux->muxed_since_last_update);
2987 qtmux->muxed_since_last_update = position - qtmux->last_moov_update;
2989 GST_OBJECT_UNLOCK (qtmux);
2990 return GST_FLOW_OK; /* No update needed yet */
2993 qtmux->last_moov_update = position;
2994 GST_OBJECT_UNLOCK (qtmux);
2996 GST_DEBUG_OBJECT (qtmux, "Update moov atom, position %" GST_TIME_FORMAT
2997 " mdat starts @ %" G_GUINT64_FORMAT " we were a %" G_GUINT64_FORMAT,
2998 GST_TIME_ARGS (position), qtmux->mdat_pos, mdat_offset);
3000 flow_ret = gst_qt_mux_robust_recording_rewrite_moov (qtmux);
3001 if (G_UNLIKELY (flow_ret != GST_FLOW_OK))
3004 /* Seek back to previous position */
3005 gst_segment_init (&segment, GST_FORMAT_BYTES);
3006 segment.start = mdat_offset;
3007 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3012 static GstFlowReturn
3013 gst_qt_mux_register_and_push_sample (GstQTMux * qtmux, GstQTPad * pad,
3014 GstBuffer * buffer, gboolean is_last_buffer, guint nsamples,
3015 gint64 last_dts, gint64 scaled_duration, guint sample_size,
3016 guint64 chunk_offset, gboolean sync, gboolean do_pts, gint64 pts_offset)
3018 GstFlowReturn ret = GST_FLOW_OK;
3020 /* note that a new chunk is started each time (not fancy but works) */
3021 if (qtmux->moov_recov_file) {
3022 if (!atoms_recov_write_trak_samples (qtmux->moov_recov_file, pad->trak,
3023 nsamples, (gint32) scaled_duration, sample_size, chunk_offset, sync,
3024 do_pts, pts_offset)) {
3025 GST_WARNING_OBJECT (qtmux, "Failed to write sample information to "
3026 "recovery file, disabling recovery");
3027 fclose (qtmux->moov_recov_file);
3028 qtmux->moov_recov_file = NULL;
3032 switch (qtmux->mux_mode) {
3033 case GST_QT_MUX_MODE_MOOV_AT_END:
3034 case GST_QT_MUX_MODE_FAST_START:
3035 case GST_QT_MUX_MODE_ROBUST_RECORDING:
3036 atom_trak_add_samples (pad->trak, nsamples, (gint32) scaled_duration,
3037 sample_size, chunk_offset, sync, pts_offset);
3038 ret = gst_qt_mux_send_buffer (qtmux, buffer, &qtmux->mdat_size, TRUE);
3039 /* Check if it's time to re-write the headers in robust-recording mode */
3040 if (ret == GST_FLOW_OK
3041 && qtmux->mux_mode == GST_QT_MUX_MODE_ROBUST_RECORDING)
3042 ret = gst_qt_mux_robust_recording_update (qtmux, pad->total_duration);
3044 case GST_QT_MUX_MODE_FRAGMENTED:
3045 case GST_QT_MUX_MODE_FRAGMENTED_STREAMABLE:
3046 /* ensure that always sync samples are marked as such */
3047 ret = gst_qt_mux_pad_fragment_add_buffer (qtmux, pad, buffer,
3048 is_last_buffer, nsamples, last_dts, (gint32) scaled_duration,
3049 sample_size, !pad->sync || sync, pts_offset);
3056 static GstFlowReturn
3057 gst_qt_mux_check_and_update_timecode (GstQTMux * qtmux, GstQTPad * pad,
3058 GstBuffer * buf, GstFlowReturn ret)
3060 if (buf != NULL && (pad->tc_trak == NULL || qtmux->tc_pos != -1)) {
3061 GstVideoTimeCodeMeta *tc_meta = gst_buffer_get_video_time_code_meta (buf);
3063 GstVideoTimeCode *tc = &tc_meta->tc;
3066 guint32 frames_since_daily_jam;
3068 /* This means we never got a timecode before */
3069 if (qtmux->first_tc == NULL) {
3070 #ifndef GST_DISABLE_GST_DEBUG
3071 gchar *tc_str = gst_video_time_code_to_string (tc);
3072 GST_DEBUG_OBJECT (qtmux, "Found first timecode %s", tc_str);
3075 g_assert (pad->tc_trak == NULL);
3076 tc_buf = gst_buffer_new_allocate (NULL, 4, NULL);
3077 qtmux->first_tc = gst_video_time_code_copy (tc);
3078 /* If frames are out of order, the frame we're currently getting might
3079 * not be the first one. Just write a 0 timecode for now and wait
3080 * until we receive a timecode that's lower than the current one */
3081 if (pad->is_out_of_order) {
3082 qtmux->first_pts = GST_BUFFER_PTS (buf);
3083 frames_since_daily_jam = 0;
3084 /* Position to rewrite */
3085 qtmux->tc_pos = qtmux->mdat_size;
3087 frames_since_daily_jam =
3088 gst_video_time_code_frames_since_daily_jam (qtmux->first_tc);
3089 frames_since_daily_jam = GUINT32_TO_BE (frames_since_daily_jam);
3091 /* Write the timecode trak now */
3092 pad->tc_trak = atom_trak_new (qtmux->context);
3093 atom_moov_add_trak (qtmux->moov, pad->tc_trak);
3095 pad->trak->tref = atom_tref_new (FOURCC_tmcd);
3096 atom_tref_add_entry (pad->trak->tref, pad->tc_trak->tkhd.track_ID);
3098 atom_trak_set_timecode_type (pad->tc_trak, qtmux->context,
3101 szret = gst_buffer_fill (tc_buf, 0, &frames_since_daily_jam, 4);
3102 g_assert (szret == 4);
3104 atom_trak_add_samples (pad->tc_trak, 1, 1, 4, qtmux->mdat_size, FALSE,
3106 ret = gst_qt_mux_send_buffer (qtmux, tc_buf, &qtmux->mdat_size, TRUE);
3107 } else if (pad->is_out_of_order) {
3108 /* Check for a lower timecode than the one stored */
3109 g_assert (pad->tc_trak != NULL);
3110 if (GST_BUFFER_DTS (buf) <= qtmux->first_pts) {
3111 if (gst_video_time_code_compare (tc, qtmux->first_tc) == -1) {
3112 gst_video_time_code_free (qtmux->first_tc);
3113 qtmux->first_tc = gst_video_time_code_copy (tc);
3116 guint64 bk_size = qtmux->mdat_size;
3118 /* If this frame's DTS is after the first PTS received, it means
3119 * we've already received the first frame to be presented. Otherwise
3120 * the decoder would need to go back in time */
3121 gst_qt_mux_update_timecode (qtmux);
3123 /* Reset writing position */
3124 gst_segment_init (&segment, GST_FORMAT_BYTES);
3125 segment.start = bk_size;
3126 gst_pad_push_event (qtmux->srcpad, gst_event_new_segment (&segment));
3135 * Here we push the buffer and update the tables in the track atoms
3137 static GstFlowReturn
3138 gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad, GstBuffer * buf)
3140 GstBuffer *last_buf = NULL;
3141 GstClockTime duration;
3142 guint nsamples, sample_size;
3143 guint64 chunk_offset;
3144 gint64 last_dts, scaled_duration;
3145 gint64 pts_offset = 0;
3146 gboolean sync = FALSE;
3147 GstFlowReturn ret = GST_FLOW_OK;
3150 goto not_negotiated;
3152 /* if this pad has a prepare function, call it */
3153 if (pad->prepare_buf_func != NULL) {
3154 buf = pad->prepare_buf_func (pad, buf, qtmux);
3157 last_buf = pad->last_buf;
3159 /* DTS delta is used to calculate sample duration.
3160 * If buffer has missing DTS, we take either segment start or
3161 * previous buffer end time, whichever is later.
3162 * This must only be done for non sparse streams, sparse streams
3163 * can have gaps between buffers (which is handled later by adding
3164 * extra empty buffer with duration that fills the gap). */
3165 if (!pad->sparse && buf && !GST_BUFFER_DTS_IS_VALID (buf)) {
3166 GstClockTime last_buf_duration = last_buf
3167 && GST_BUFFER_DURATION_IS_VALID (last_buf) ?
3168 GST_BUFFER_DURATION (last_buf) : 0;
3170 buf = gst_buffer_make_writable (buf);
3171 GST_BUFFER_DTS (buf) = 0; /* running-time 0 */
3174 && (GST_BUFFER_DTS (last_buf) + last_buf_duration) >
3175 GST_BUFFER_DTS (buf)) {
3176 GST_BUFFER_DTS (buf) = GST_BUFFER_DTS (last_buf) + last_buf_duration;
3180 ret = gst_qt_mux_check_and_update_timecode (qtmux, pad, buf, ret);
3182 if (last_buf && !buf && !GST_BUFFER_DURATION_IS_VALID (last_buf)) {
3183 /* this is last buffer; there is no next buffer so we need valid number as duration */
3184 last_buf = gst_buffer_make_writable (last_buf);
3185 GST_BUFFER_DURATION (last_buf) = 0;
3188 if (last_buf == NULL) {
3189 #ifndef GST_DISABLE_GST_DEBUG
3191 GST_DEBUG_OBJECT (qtmux, "Pad %s has no previous buffer stored and "
3192 "received NULL buffer, doing nothing",
3193 GST_PAD_NAME (pad->collect.pad));
3195 GST_LOG_OBJECT (qtmux,
3196 "Pad %s has no previous buffer stored, storing now",
3197 GST_PAD_NAME (pad->collect.pad));
3200 pad->last_buf = buf;
3203 gst_buffer_ref (last_buf);
3205 /* if this is the first buffer, store the timestamp */
3206 if (G_UNLIKELY (pad->first_ts == GST_CLOCK_TIME_NONE) && last_buf) {
3207 if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3208 pad->first_ts = GST_BUFFER_PTS (last_buf);
3209 } else if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3210 pad->first_ts = GST_BUFFER_DTS (last_buf);
3213 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3214 pad->first_dts = pad->last_dts = GST_BUFFER_DTS (last_buf);
3215 } else if (GST_BUFFER_PTS_IS_VALID (last_buf)) {
3216 pad->first_dts = pad->last_dts = GST_BUFFER_PTS (last_buf);
3219 if (GST_CLOCK_TIME_IS_VALID (pad->first_ts)) {
3220 GST_DEBUG ("setting first_ts to %" G_GUINT64_FORMAT, pad->first_ts);
3222 GST_WARNING_OBJECT (qtmux, "First buffer for pad %s has no timestamp, "
3223 "using 0 as first timestamp", GST_PAD_NAME (pad->collect.pad));
3224 pad->first_ts = pad->first_dts = 0;
3226 GST_DEBUG_OBJECT (qtmux, "Stored first timestamp for pad %s %"
3227 GST_TIME_FORMAT, GST_PAD_NAME (pad->collect.pad),
3228 GST_TIME_ARGS (pad->first_ts));
3231 if (last_buf && buf && GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (buf)) &&
3232 GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (last_buf)) &&
3233 GST_BUFFER_DTS (buf) < GST_BUFFER_DTS (last_buf)) {
3234 GST_ERROR ("decreasing DTS value %" GST_TIME_FORMAT " < %" GST_TIME_FORMAT,
3235 GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
3236 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)));
3237 GST_BUFFER_DTS (buf) = GST_BUFFER_DTS (last_buf);
3240 /* duration actually means time delta between samples, so we calculate
3241 * the duration based on the difference in DTS or PTS, falling back
3242 * to DURATION if the other two don't exist, such as with the last
3243 * sample before EOS. */
3244 duration = GST_BUFFER_DURATION (last_buf);
3246 if (last_buf && buf && GST_BUFFER_DTS_IS_VALID (buf)
3247 && GST_BUFFER_DTS_IS_VALID (last_buf))
3248 duration = GST_BUFFER_DTS (buf) - GST_BUFFER_DTS (last_buf);
3249 else if (last_buf && buf && GST_BUFFER_PTS_IS_VALID (buf)
3250 && GST_BUFFER_PTS_IS_VALID (last_buf))
3251 duration = GST_BUFFER_PTS (buf) - GST_BUFFER_PTS (last_buf);
3254 gst_buffer_replace (&pad->last_buf, buf);
3256 /* for computing the avg bitrate */
3257 if (G_LIKELY (last_buf)) {
3258 pad->total_bytes += gst_buffer_get_size (last_buf);
3259 pad->total_duration += duration;
3262 last_dts = gst_util_uint64_scale_round (pad->last_dts,
3263 atom_trak_get_timescale (pad->trak), GST_SECOND);
3265 /* fragments only deal with 1 buffer == 1 chunk (== 1 sample) */
3266 if (pad->sample_size && !qtmux->fragment_sequence) {
3267 /* Constant size packets: usually raw audio (with many samples per
3268 buffer (= chunk)), but can also be fixed-packet-size codecs like ADPCM
3270 sample_size = pad->sample_size;
3271 if (gst_buffer_get_size (last_buf) % sample_size != 0)
3272 goto fragmented_sample;
3273 /* note: qt raw audio storage warps it implicitly into a timewise
3274 * perfect stream, discarding buffer times */
3275 if (GST_BUFFER_DURATION (last_buf) != GST_CLOCK_TIME_NONE) {
3276 nsamples = gst_util_uint64_scale_round (GST_BUFFER_DURATION (last_buf),
3277 atom_trak_get_timescale (pad->trak), GST_SECOND);
3279 nsamples = gst_buffer_get_size (last_buf) / sample_size;
3282 duration = GST_BUFFER_DURATION (last_buf) / nsamples;
3286 /* timescale = samplerate */
3287 scaled_duration = 1;
3288 pad->last_dts += duration * nsamples;
3291 sample_size = gst_buffer_get_size (last_buf);
3292 if ((pad->last_buf && GST_BUFFER_DTS_IS_VALID (pad->last_buf))
3293 || GST_BUFFER_DTS_IS_VALID (last_buf)) {
3295 if (pad->last_buf && GST_BUFFER_DTS_IS_VALID (pad->last_buf)) {
3296 pad->last_dts = GST_BUFFER_DTS (pad->last_buf);
3298 pad->last_dts = GST_BUFFER_DTS (last_buf) +
3299 GST_BUFFER_DURATION (last_buf);
3301 if ((gint64) (pad->last_dts) < 0) {
3302 scaled_dts = -gst_util_uint64_scale_round (-pad->last_dts,
3303 atom_trak_get_timescale (pad->trak), GST_SECOND);
3305 scaled_dts = gst_util_uint64_scale_round (pad->last_dts,
3306 atom_trak_get_timescale (pad->trak), GST_SECOND);
3308 scaled_duration = scaled_dts - last_dts;
3309 last_dts = scaled_dts;
3311 /* first convert intended timestamp (in GstClockTime resolution) to
3312 * trak timescale, then derive delta;
3313 * this ensures sums of (scale)delta add up to converted timestamp,
3314 * which only deviates at most 1/scale from timestamp itself */
3315 scaled_duration = gst_util_uint64_scale_round (pad->last_dts + duration,
3316 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts;
3317 pad->last_dts += duration;
3320 chunk_offset = qtmux->mdat_size;
3322 GST_LOG_OBJECT (qtmux,
3323 "Pad (%s) dts updated to %" GST_TIME_FORMAT,
3324 GST_PAD_NAME (pad->collect.pad), GST_TIME_ARGS (pad->last_dts));
3325 GST_LOG_OBJECT (qtmux,
3326 "Adding %d samples to track, duration: %" G_GUINT64_FORMAT
3327 " size: %" G_GUINT32_FORMAT " chunk offset: %" G_GUINT64_FORMAT,
3328 nsamples, scaled_duration, sample_size, chunk_offset);
3330 /* might be a sync sample */
3332 !GST_BUFFER_FLAG_IS_SET (last_buf, GST_BUFFER_FLAG_DELTA_UNIT)) {
3333 GST_LOG_OBJECT (qtmux, "Adding new sync sample entry for track of pad %s",
3334 GST_PAD_NAME (pad->collect.pad));
3338 if (!GST_BUFFER_PTS_IS_VALID (last_buf))
3341 if (GST_BUFFER_DTS_IS_VALID (last_buf)) {
3342 last_dts = gst_util_uint64_scale_round (GST_BUFFER_DTS (last_buf),
3343 atom_trak_get_timescale (pad->trak), GST_SECOND);
3345 (gint64) (gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3346 atom_trak_get_timescale (pad->trak), GST_SECOND) - last_dts);
3349 last_dts = gst_util_uint64_scale_round (GST_BUFFER_PTS (last_buf),
3350 atom_trak_get_timescale (pad->trak), GST_SECOND);
3352 GST_DEBUG ("dts: %" GST_TIME_FORMAT " pts: %" GST_TIME_FORMAT
3353 " timebase_dts: %d pts_offset: %d",
3354 GST_TIME_ARGS (GST_BUFFER_DTS (last_buf)),
3355 GST_TIME_ARGS (GST_BUFFER_PTS (last_buf)),
3356 (int) (last_dts), (int) (pts_offset));
3359 * Each buffer starts a new chunk, so we can assume the buffer
3360 * duration is the chunk duration
3362 if (GST_CLOCK_TIME_IS_VALID (duration) && (duration > qtmux->longest_chunk ||
3363 !GST_CLOCK_TIME_IS_VALID (qtmux->longest_chunk))) {
3364 GST_DEBUG_OBJECT (qtmux, "New longest chunk found: %" GST_TIME_FORMAT
3365 ", pad %s", GST_TIME_ARGS (duration), GST_PAD_NAME (pad->collect.pad));
3366 qtmux->longest_chunk = duration;
3369 /* now we go and register this buffer/sample all over */
3370 ret = gst_qt_mux_register_and_push_sample (qtmux, pad, last_buf,
3371 buf == NULL, nsamples, last_dts, scaled_duration, sample_size,
3372 chunk_offset, sync, TRUE, pts_offset);
3374 /* if this is sparse and we have a next buffer, check if there is any gap
3375 * between them to insert an empty sample */
3376 if (pad->sparse && buf) {
3377 if (pad->create_empty_buffer) {
3378 GstBuffer *empty_buf;
3379 gint64 empty_duration =
3380 GST_BUFFER_TIMESTAMP (buf) - (GST_BUFFER_TIMESTAMP (last_buf) +
3382 gint64 empty_duration_scaled;
3384 empty_buf = pad->create_empty_buffer (pad, empty_duration);
3386 empty_duration_scaled = gst_util_uint64_scale_round (empty_duration,
3387 atom_trak_get_timescale (pad->trak), GST_SECOND);
3389 pad->total_bytes += gst_buffer_get_size (empty_buf);
3390 pad->total_duration += duration;
3393 gst_qt_mux_register_and_push_sample (qtmux, pad, empty_buf, FALSE, 1,
3394 last_dts + scaled_duration, empty_duration_scaled,
3395 gst_buffer_get_size (empty_buf), qtmux->mdat_size, sync, TRUE, 0);
3397 /* our only case currently is tx3g subtitles, so there is no reason to fill this yet */
3398 g_assert_not_reached ();
3399 GST_WARNING_OBJECT (qtmux,
3400 "no empty buffer creation function found for pad %s",
3401 GST_PAD_NAME (pad->collect.pad));
3406 gst_buffer_unref (buf);
3416 gst_buffer_unref (buf);
3417 gst_buffer_unref (last_buf);
3418 return GST_FLOW_ERROR;
3422 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL),
3423 ("Audio buffer contains fragmented sample."));
3428 GST_ELEMENT_ERROR (qtmux, STREAM, MUX, (NULL), ("Buffer has no PTS."));
3433 GST_ELEMENT_ERROR (qtmux, CORE, NEGOTIATION, (NULL),
3434 ("format wasn't negotiated before buffer flow on pad %s",
3435 GST_PAD_NAME (pad->collect.pad)));
3437 gst_buffer_unref (buf);
3438 return GST_FLOW_NOT_NEGOTIATED;
3443 * DTS running time can be negative. There is no way to represent that in
3444 * MP4 however, thus we need to offset DTS so that it starts from 0.
3447 gst_qt_pad_adjust_buffer_dts (GstQTMux * qtmux, GstQTPad * pad,
3448 GstCollectData * cdata, GstBuffer ** buf)
3453 pts = GST_BUFFER_PTS (*buf);
3454 dts = GST_COLLECT_PADS_DTS (cdata);
3456 GST_LOG_OBJECT (qtmux, "selected pad %s with PTS %" GST_TIME_FORMAT
3457 " and DTS %" GST_STIME_FORMAT, GST_PAD_NAME (cdata->pad),
3458 GST_TIME_ARGS (pts), GST_STIME_ARGS (dts));
3460 if (!GST_CLOCK_TIME_IS_VALID (pad->dts_adjustment)) {
3461 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0)
3462 pad->dts_adjustment = -dts;
3464 pad->dts_adjustment = 0;
3467 if (pad->dts_adjustment > 0) {
3468 *buf = gst_buffer_make_writable (*buf);
3470 dts += pad->dts_adjustment;
3472 if (GST_CLOCK_TIME_IS_VALID (pts))
3473 pts += pad->dts_adjustment;
3475 if (GST_CLOCK_STIME_IS_VALID (dts) && dts < 0) {
3476 GST_WARNING_OBJECT (pad, "Decreasing DTS.");
3481 GST_WARNING_OBJECT (pad, "DTS is bigger then PTS");
3485 GST_BUFFER_PTS (*buf) = pts;
3486 GST_BUFFER_DTS (*buf) = dts;
3488 GST_LOG_OBJECT (qtmux, "time adjusted to PTS %" GST_TIME_FORMAT
3489 " and DTS %" GST_TIME_FORMAT, GST_TIME_ARGS (pts), GST_TIME_ARGS (dts));
3493 static GstFlowReturn
3494 gst_qt_mux_handle_buffer (GstCollectPads * pads, GstCollectData * cdata,
3495 GstBuffer * buf, gpointer user_data)
3497 GstFlowReturn ret = GST_FLOW_OK;
3498 GstQTMux *qtmux = GST_QT_MUX_CAST (user_data);
3499 GstQTPad *best_pad = NULL;
3501 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_STARTED)) {
3502 if ((ret = gst_qt_mux_start_file (qtmux)) != GST_FLOW_OK)
3505 qtmux->state = GST_QT_MUX_STATE_DATA;
3508 if (G_UNLIKELY (qtmux->state == GST_QT_MUX_STATE_EOS))
3509 return GST_FLOW_EOS;
3511 best_pad = (GstQTPad *) cdata;
3513 /* clipping already converted to running time */
3514 if (best_pad != NULL) {
3516 gst_qt_pad_adjust_buffer_dts (qtmux, best_pad, cdata, &buf);
3517 ret = gst_qt_mux_add_buffer (qtmux, best_pad, buf);
3519 qtmux->state = GST_QT_MUX_STATE_EOS;
3520 ret = gst_qt_mux_stop_file (qtmux);
3521 if (ret == GST_FLOW_OK) {
3522 GST_DEBUG_OBJECT (qtmux, "Pushing eos");
3523 gst_pad_push_event (qtmux->srcpad, gst_event_new_eos ());
3526 GST_WARNING_OBJECT (qtmux, "Failed to stop file: %s",
3527 gst_flow_get_name (ret));
3535 check_field (GQuark field_id, const GValue * value, gpointer user_data)
3537 GstStructure *structure = (GstStructure *) user_data;
3538 const GValue *other = gst_structure_id_get_value (structure, field_id);
3541 return gst_value_compare (value, other) == GST_VALUE_EQUAL;
3545 gst_qtmux_caps_is_subset_full (GstQTMux * qtmux, GstCaps * subset,
3548 GstStructure *sub_s = gst_caps_get_structure (subset, 0);
3549 GstStructure *sup_s = gst_caps_get_structure (superset, 0);
3551 return gst_structure_foreach (sub_s, check_field, sup_s);
3555 gst_qt_mux_audio_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
3557 GstPad *pad = qtpad->collect.pad;
3558 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
3559 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
3560 GstStructure *structure;
3561 const gchar *mimetype;
3562 gint rate, channels;
3563 const GValue *value = NULL;
3564 const GstBuffer *codec_data = NULL;
3565 GstQTMuxFormat format;
3566 AudioSampleEntry entry = { 0, };
3567 AtomInfo *ext_atom = NULL;
3568 gint constant_size = 0;
3569 const gchar *stream_format;
3571 qtpad->prepare_buf_func = NULL;
3573 /* does not go well to renegotiate stream mid-way, unless
3574 * the old caps are a subset of the new one (this means upstream
3575 * added more info to the caps, as both should be 'fixed' caps) */
3576 if (qtpad->fourcc) {
3577 GstCaps *current_caps;
3579 current_caps = gst_pad_get_current_caps (pad);
3580 g_assert (caps != NULL);
3582 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
3583 gst_caps_unref (current_caps);
3584 goto refuse_renegotiation;
3586 GST_DEBUG_OBJECT (qtmux,
3587 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
3588 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
3589 gst_caps_unref (current_caps);
3592 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
3593 GST_DEBUG_PAD_NAME (pad), caps);
3595 format = qtmux_klass->format;
3596 structure = gst_caps_get_structure (caps, 0);
3597 mimetype = gst_structure_get_name (structure);
3600 if (!gst_structure_get_int (structure, "channels", &channels) ||
3601 !gst_structure_get_int (structure, "rate", &rate)) {
3606 value = gst_structure_get_value (structure, "codec_data");
3608 codec_data = gst_value_get_buffer (value);
3610 qtpad->is_out_of_order = FALSE;
3612 /* set common properties */
3613 entry.sample_rate = rate;
3614 entry.channels = channels;
3616 entry.sample_size = 16;
3617 /* this is the typical compressed case */
3618 if (format == GST_QT_MUX_FORMAT_QT) {
3620 entry.compression_id = -2;
3623 /* now map onto a fourcc, and some extra properties */
3624 if (strcmp (mimetype, "audio/mpeg") == 0) {
3625 gint mpegversion = 0, mpegaudioversion = 0;
3628 gst_structure_get_int (structure, "mpegversion", &mpegversion);
3629 switch (mpegversion) {
3631 gst_structure_get_int (structure, "layer", &layer);
3632 gst_structure_get_int (structure, "mpegaudioversion",
3636 /* note: QuickTime player does not like mp3 either way in iso/mp4 */
3637 if (format == GST_QT_MUX_FORMAT_QT)
3638 entry.fourcc = FOURCC__mp3;
3640 entry.fourcc = FOURCC_mp4a;
3642 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG1_P3,
3643 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3644 qtpad->max_bitrate);
3647 g_warn_if_fail (format == GST_QT_MUX_FORMAT_MP4);
3648 entry.samples_per_packet = 384;
3649 } else if (layer == 2) {
3650 g_warn_if_fail (format == GST_QT_MUX_FORMAT_MP4);
3651 entry.samples_per_packet = 1152;
3653 g_warn_if_fail (layer == 3);
3654 entry.samples_per_packet = (mpegaudioversion <= 1) ? 1152 : 576;
3656 entry.bytes_per_sample = 2;
3660 /* check stream-format */
3661 stream_format = gst_structure_get_string (structure, "stream-format");
3662 if (stream_format) {
3663 if (strcmp (stream_format, "raw") != 0) {
3664 GST_WARNING_OBJECT (qtmux, "Unsupported AAC stream-format %s, "
3665 "please use 'raw'", stream_format);
3669 GST_WARNING_OBJECT (qtmux, "No stream-format present in caps, "
3673 if (!codec_data || gst_buffer_get_size ((GstBuffer *) codec_data) < 2) {
3674 GST_WARNING_OBJECT (qtmux, "no (valid) codec_data for AAC audio");
3679 gst_buffer_extract ((GstBuffer *) codec_data, 0, &profile, 1);
3680 /* warn if not Low Complexity profile */
3683 GST_WARNING_OBJECT (qtmux,
3684 "non-LC AAC may not run well on (Apple) QuickTime/iTunes");
3688 entry.fourcc = FOURCC_mp4a;
3690 if (format == GST_QT_MUX_FORMAT_QT)
3691 ext_atom = build_mov_aac_extension (qtpad->trak, codec_data,
3692 qtpad->avg_bitrate, qtpad->max_bitrate);
3695 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P3,
3696 ESDS_STREAM_TYPE_AUDIO, codec_data, qtpad->avg_bitrate,
3697 qtpad->max_bitrate);
3702 } else if (strcmp (mimetype, "audio/AMR") == 0) {
3703 entry.fourcc = FOURCC_samr;
3704 entry.sample_size = 16;
3705 entry.samples_per_packet = 160;
3706 entry.bytes_per_sample = 2;
3707 ext_atom = build_amr_extension ();
3708 } else if (strcmp (mimetype, "audio/AMR-WB") == 0) {
3709 entry.fourcc = FOURCC_sawb;
3710 entry.sample_size = 16;
3711 entry.samples_per_packet = 320;
3712 entry.bytes_per_sample = 2;
3713 ext_atom = build_amr_extension ();
3714 } else if (strcmp (mimetype, "audio/x-raw") == 0) {
3717 gst_audio_info_init (&info);
3718 if (!gst_audio_info_from_caps (&info, caps))
3721 /* spec has no place for a distinction in these */
3722 if (info.finfo->width != info.finfo->depth) {
3723 GST_DEBUG_OBJECT (qtmux, "width must be same as depth!");
3727 if ((info.finfo->flags & GST_AUDIO_FORMAT_FLAG_SIGNED)) {
3728 if (info.finfo->endianness == G_LITTLE_ENDIAN)
3729 entry.fourcc = FOURCC_sowt;
3730 else if (info.finfo->endianness == G_BIG_ENDIAN)
3731 entry.fourcc = FOURCC_twos;
3733 entry.fourcc = FOURCC_sowt;
3734 /* maximum backward compatibility; only new version for > 16 bit */
3735 if (info.finfo->depth <= 16)
3737 /* not compressed in any case */
3738 entry.compression_id = 0;
3739 /* QT spec says: max at 16 bit even if sample size were actually larger,
3740 * however, most players (e.g. QuickTime!) seem to disagree, so ... */
3741 entry.sample_size = info.finfo->depth;
3742 entry.bytes_per_sample = info.finfo->depth / 8;
3743 entry.samples_per_packet = 1;
3744 entry.bytes_per_packet = info.finfo->depth / 8;
3745 entry.bytes_per_frame = entry.bytes_per_packet * info.channels;
3747 if (info.finfo->width == 8 && info.finfo->depth == 8) {
3748 /* fall back to old 8-bit version */
3749 entry.fourcc = FOURCC_raw_;
3751 entry.compression_id = 0;
3752 entry.sample_size = 8;
3754 GST_DEBUG_OBJECT (qtmux, "non 8-bit PCM must be signed");
3758 constant_size = (info.finfo->depth / 8) * info.channels;
3759 } else if (strcmp (mimetype, "audio/x-alaw") == 0) {
3760 entry.fourcc = FOURCC_alaw;
3761 entry.samples_per_packet = 1023;
3762 entry.bytes_per_sample = 2;
3763 } else if (strcmp (mimetype, "audio/x-mulaw") == 0) {
3764 entry.fourcc = FOURCC_ulaw;
3765 entry.samples_per_packet = 1023;
3766 entry.bytes_per_sample = 2;
3767 } else if (strcmp (mimetype, "audio/x-adpcm") == 0) {
3769 if (!gst_structure_get_int (structure, "block_align", &blocksize)) {
3770 GST_DEBUG_OBJECT (qtmux, "broken caps, block_align missing");
3773 /* Currently only supports WAV-style IMA ADPCM, for which the codec id is
3775 entry.fourcc = MS_WAVE_FOURCC (0x11);
3776 /* 4 byte header per channel (including one sample). 2 samples per byte
3777 remaining. Simplifying gives the following (samples per block per
3779 entry.samples_per_packet = 2 * blocksize / channels - 7;
3780 entry.bytes_per_sample = 2;
3782 entry.bytes_per_frame = blocksize;
3783 entry.bytes_per_packet = blocksize / channels;
3784 /* ADPCM has constant size packets */
3786 /* TODO: I don't really understand why this helps, but it does! Constant
3787 * size and compression_id of -2 seem to be incompatible, and other files
3788 * in the wild use this too. */
3789 entry.compression_id = -1;
3791 ext_atom = build_ima_adpcm_extension (channels, rate, blocksize);
3792 } else if (strcmp (mimetype, "audio/x-alac") == 0) {
3793 GstBuffer *codec_config;
3797 entry.fourcc = FOURCC_alac;
3798 gst_buffer_map ((GstBuffer *) codec_data, &map, GST_MAP_READ);
3799 /* let's check if codec data already comes with 'alac' atom prefix */
3800 if (!codec_data || (len = map.size) < 28) {
3801 GST_DEBUG_OBJECT (qtmux, "broken caps, codec data missing");
3802 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3805 if (GST_READ_UINT32_LE (map.data + 4) == FOURCC_alac) {
3808 gst_buffer_copy_region ((GstBuffer *) codec_data,
3809 GST_BUFFER_COPY_MEMORY, 8, len);
3811 codec_config = gst_buffer_ref ((GstBuffer *) codec_data);
3813 gst_buffer_unmap ((GstBuffer *) codec_data, &map);
3815 /* does not look good, but perhaps some trailing unneeded stuff */
3816 GST_WARNING_OBJECT (qtmux, "unexpected codec-data size, possibly broken");
3818 if (format == GST_QT_MUX_FORMAT_QT)
3819 ext_atom = build_mov_alac_extension (codec_config);
3821 ext_atom = build_codec_data_extension (FOURCC_alac, codec_config);
3822 /* set some more info */
3823 gst_buffer_map (codec_config, &map, GST_MAP_READ);
3824 entry.bytes_per_sample = 2;
3825 entry.samples_per_packet = GST_READ_UINT32_BE (map.data + 4);
3826 gst_buffer_unmap (codec_config, &map);
3827 gst_buffer_unref (codec_config);
3828 } else if (strcmp (mimetype, "audio/x-ac3") == 0) {
3829 entry.fourcc = FOURCC_ac_3;
3831 /* Fixed values according to TS 102 366 but it also mentions that
3832 * they should be ignored */
3834 entry.sample_size = 16;
3836 /* AC-3 needs an extension atom but its data can only be obtained from
3837 * the stream itself. Abuse the prepare_buf_func so we parse a frame
3838 * and get the needed data */
3839 qtpad->prepare_buf_func = gst_qt_mux_prepare_parse_ac3_frame;
3840 } else if (strcmp (mimetype, "audio/x-opus") == 0) {
3841 /* Based on the specification defined in:
3842 * https://www.opus-codec.org/docs/opus_in_isobmff.html */
3843 guint8 channels, mapping_family, stream_count, coupled_count;
3847 guint8 channel_mapping[256];
3848 const GValue *streamheader;
3849 const GValue *first_element;
3852 entry.fourcc = FOURCC_opus;
3853 entry.sample_size = 16;
3855 streamheader = gst_structure_get_value (structure, "streamheader");
3856 if (streamheader && GST_VALUE_HOLDS_ARRAY (streamheader) &&
3857 gst_value_array_get_size (streamheader) != 0) {
3858 first_element = gst_value_array_get_value (streamheader, 0);
3859 header = gst_value_get_buffer (first_element);
3860 if (!gst_codec_utils_opus_parse_header (header, &rate, &channels,
3861 &mapping_family, &stream_count, &coupled_count, channel_mapping,
3862 &pre_skip, &output_gain)) {
3863 GST_ERROR_OBJECT (qtmux, "Incomplete OpusHead");
3867 GST_WARNING_OBJECT (qtmux,
3868 "no streamheader field in caps %" GST_PTR_FORMAT, caps);
3870 if (!gst_codec_utils_opus_parse_caps (caps, &rate, &channels,
3871 &mapping_family, &stream_count, &coupled_count,
3873 GST_ERROR_OBJECT (qtmux, "Incomplete Opus caps");
3880 entry.channels = channels;
3881 ext_atom = build_opus_extension (rate, channels, mapping_family,
3882 stream_count, coupled_count, channel_mapping, pre_skip, output_gain);
3888 /* ok, set the pad info accordingly */
3889 qtpad->fourcc = entry.fourcc;
3890 qtpad->sample_size = constant_size;
3892 (SampleTableEntry *) atom_trak_set_audio_type (qtpad->trak,
3893 qtmux->context, &entry,
3894 qtmux->trak_timescale ? qtmux->trak_timescale : entry.sample_rate,
3895 ext_atom, constant_size);
3897 gst_object_unref (qtmux);
3903 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
3904 GST_PAD_NAME (pad), caps);
3905 gst_object_unref (qtmux);
3908 refuse_renegotiation:
3910 GST_WARNING_OBJECT (qtmux,
3911 "pad %s refused renegotiation to %" GST_PTR_FORMAT,
3912 GST_PAD_NAME (pad), caps);
3913 gst_object_unref (qtmux);
3918 /* return number of centiframes per second */
3920 adjust_rate (gint n, gint d)
3925 if (d != 1 && d != 1001) {
3926 /* otherwise there are probably rounding errors and we should rather guess
3927 * if it's close enough to a well known framerate */
3928 gst_video_guess_framerate (gst_util_uint64_scale (d, GST_SECOND, n), &n,
3932 return gst_util_uint64_scale (n, 100, d);
3936 gst_qt_mux_video_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
3938 GstPad *pad = qtpad->collect.pad;
3939 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
3940 GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
3941 GstStructure *structure;
3942 const gchar *mimetype;
3943 gint width, height, depth = -1;
3944 gint framerate_num, framerate_den;
3946 const GValue *value = NULL;
3947 const GstBuffer *codec_data = NULL;
3948 VisualSampleEntry entry = { 0, };
3949 GstQTMuxFormat format;
3950 AtomInfo *ext_atom = NULL;
3951 GList *ext_atom_list = NULL;
3952 gboolean sync = FALSE;
3953 int par_num, par_den;
3955 qtpad->prepare_buf_func = NULL;
3957 /* does not go well to renegotiate stream mid-way, unless
3958 * the old caps are a subset of the new one (this means upstream
3959 * added more info to the caps, as both should be 'fixed' caps) */
3960 if (qtpad->fourcc) {
3961 GstCaps *current_caps;
3963 current_caps = gst_pad_get_current_caps (pad);
3964 g_assert (caps != NULL);
3966 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
3967 gst_caps_unref (current_caps);
3968 goto refuse_renegotiation;
3970 GST_DEBUG_OBJECT (qtmux,
3971 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
3972 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
3973 gst_caps_unref (current_caps);
3976 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
3977 GST_DEBUG_PAD_NAME (pad), caps);
3979 format = qtmux_klass->format;
3980 structure = gst_caps_get_structure (caps, 0);
3981 mimetype = gst_structure_get_name (structure);
3983 /* required parts */
3984 if (!gst_structure_get_int (structure, "width", &width) ||
3985 !gst_structure_get_int (structure, "height", &height))
3990 /* works as a default timebase */
3991 framerate_num = 10000;
3993 gst_structure_get_fraction (structure, "framerate", &framerate_num,
3995 gst_structure_get_int (structure, "depth", &depth);
3996 value = gst_structure_get_value (structure, "codec_data");
3998 codec_data = gst_value_get_buffer (value);
4002 gst_structure_get_fraction (structure, "pixel-aspect-ratio", &par_num,
4005 qtpad->is_out_of_order = FALSE;
4007 /* bring frame numerator into a range that ensures both reasonable resolution
4008 * as well as a fair duration */
4009 rate = qtmux->trak_timescale ?
4010 qtmux->trak_timescale : adjust_rate (framerate_num, framerate_den);
4011 GST_DEBUG_OBJECT (qtmux, "Rate of video track selected: %" G_GUINT32_FORMAT,
4014 /* set common properties */
4015 entry.width = width;
4016 entry.height = height;
4017 entry.par_n = par_num;
4018 entry.par_d = par_den;
4019 /* should be OK according to qt and iso spec, override if really needed */
4020 entry.color_table_id = -1;
4021 entry.frame_count = 1;
4024 /* sync entries by default */
4027 /* now map onto a fourcc, and some extra properties */
4028 if (strcmp (mimetype, "video/x-raw") == 0) {
4029 const gchar *format;
4031 const GstVideoFormatInfo *vinfo;
4033 format = gst_structure_get_string (structure, "format");
4034 fmt = gst_video_format_from_string (format);
4035 vinfo = gst_video_format_get_info (fmt);
4038 case GST_VIDEO_FORMAT_UYVY:
4041 entry.fourcc = FOURCC_2vuy;
4042 entry.depth = depth;
4045 case GST_VIDEO_FORMAT_v210:
4048 entry.fourcc = FOURCC_v210;
4049 entry.depth = depth;
4053 if (GST_VIDEO_FORMAT_INFO_FLAGS (vinfo) & GST_VIDEO_FORMAT_FLAG_RGB) {
4054 entry.fourcc = FOURCC_raw_;
4055 entry.depth = GST_VIDEO_FORMAT_INFO_PSTRIDE (vinfo, 0) * 8;
4060 } else if (strcmp (mimetype, "video/x-h263") == 0) {
4062 if (format == GST_QT_MUX_FORMAT_QT)
4063 entry.fourcc = FOURCC_h263;
4065 entry.fourcc = FOURCC_s263;
4066 ext_atom = build_h263_extension ();
4067 if (ext_atom != NULL)
4068 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4069 } else if (strcmp (mimetype, "video/x-divx") == 0 ||
4070 strcmp (mimetype, "video/mpeg") == 0) {
4073 if (strcmp (mimetype, "video/x-divx") == 0) {
4074 gst_structure_get_int (structure, "divxversion", &version);
4075 version = version == 5 ? 1 : 0;
4077 gst_structure_get_int (structure, "mpegversion", &version);
4078 version = version == 4 ? 1 : 0;
4081 entry.fourcc = FOURCC_mp4v;
4083 build_esds_extension (qtpad->trak, ESDS_OBJECT_TYPE_MPEG4_P2,
4084 ESDS_STREAM_TYPE_VISUAL, codec_data, qtpad->avg_bitrate,
4085 qtpad->max_bitrate);
4086 if (ext_atom != NULL)
4087 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4089 GST_WARNING_OBJECT (qtmux, "no codec_data for MPEG4 video; "
4090 "output might not play in Apple QuickTime (try global-headers?)");
4092 } else if (strcmp (mimetype, "video/x-h264") == 0) {
4093 /* check if we accept these caps */
4094 if (gst_structure_has_field (structure, "stream-format")) {
4095 const gchar *format;
4096 const gchar *alignment;
4098 format = gst_structure_get_string (structure, "stream-format");
4099 alignment = gst_structure_get_string (structure, "alignment");
4101 if (strcmp (format, "avc") != 0 || alignment == NULL ||
4102 strcmp (alignment, "au") != 0) {
4103 GST_WARNING_OBJECT (qtmux, "Rejecting h264 caps, qtmux only accepts "
4104 "avc format with AU aligned samples");
4108 GST_WARNING_OBJECT (qtmux, "no stream-format field in h264 caps");
4113 GST_WARNING_OBJECT (qtmux, "no codec_data in h264 caps");
4117 entry.fourcc = FOURCC_avc1;
4118 if (qtpad->avg_bitrate == 0) {
4119 gint avg_bitrate = 0;
4120 gst_structure_get_int (structure, "bitrate", &avg_bitrate);
4121 qtpad->avg_bitrate = avg_bitrate;
4123 ext_atom = build_btrt_extension (0, qtpad->avg_bitrate, qtpad->max_bitrate);
4124 if (ext_atom != NULL)
4125 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4126 ext_atom = build_codec_data_extension (FOURCC_avcC, codec_data);
4127 if (ext_atom != NULL)
4128 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4129 } else if (strcmp (mimetype, "video/x-svq") == 0) {
4131 const GstBuffer *seqh = NULL;
4132 const GValue *seqh_value;
4135 gst_structure_get_int (structure, "svqversion", &version);
4137 entry.fourcc = FOURCC_SVQ3;
4141 seqh_value = gst_structure_get_value (structure, "seqh");
4143 seqh = gst_value_get_buffer (seqh_value);
4144 ext_atom = build_SMI_atom (seqh);
4146 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4149 /* we need to add the gamma anyway because quicktime might crash
4150 * when it doesn't find it */
4151 if (!gst_structure_get_double (structure, "applied-gamma", &gamma)) {
4152 /* it seems that using 0 here makes it ignored */
4155 ext_atom = build_gama_atom (gamma);
4157 ext_atom_list = g_list_prepend (ext_atom_list, ext_atom);
4159 GST_WARNING_OBJECT (qtmux, "SVQ version %d not supported. Please file "
4160 "a bug at http://bugzilla.gnome.org", version);
4162 } else if (strcmp (mimetype, "video/x-dv") == 0) {
4164 gboolean pal = TRUE;
4167 if (framerate_num != 25 || framerate_den != 1)
4169 gst_structure_get_int (structure, "dvversion", &version);
4170 /* fall back to typical one */
4176 entry.fourcc = FOURCC_dvcp;
4178 entry.fourcc = FOURCC_dvc_;
4182 entry.fourcc = FOURCC_dv5p;
4184 entry.fourcc = FOURCC_dv5n;
4187 GST_WARNING_OBJECT (qtmux, "unrecognized dv version");
4190 } else if (strcmp (mimetype, "image/jpeg") == 0) {
4191 entry.fourcc = FOURCC_jpeg;
4193 } else if (strcmp (mimetype, "image/x-j2c") == 0 ||
4194 strcmp (mimetype, "image/x-jpc") == 0) {
4195 const gchar *colorspace;
4196 const GValue *cmap_array;
4197 const GValue *cdef_array;
4200 if (strcmp (mimetype, "image/x-jpc") == 0) {
4201 qtpad->prepare_buf_func = gst_qt_mux_prepare_jpc_buffer;
4204 gst_structure_get_int (structure, "num-components", &ncomp);
4205 cmap_array = gst_structure_get_value (structure, "component-map");
4206 cdef_array = gst_structure_get_value (structure, "channel-definitions");
4209 entry.fourcc = FOURCC_mjp2;
4212 colorspace = gst_structure_get_string (structure, "colorspace");
4215 build_jp2h_extension (width, height, colorspace, ncomp, cmap_array,
4216 cdef_array)) != NULL) {
4217 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4219 ext_atom = build_jp2x_extension (codec_data);
4221 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4223 GST_DEBUG_OBJECT (qtmux, "missing or invalid fourcc in jp2 caps");
4226 } else if (strcmp (mimetype, "video/x-vp8") == 0) {
4227 entry.fourcc = FOURCC_VP80;
4229 } else if (strcmp (mimetype, "video/x-dirac") == 0) {
4230 entry.fourcc = FOURCC_drac;
4231 } else if (strcmp (mimetype, "video/x-qt-part") == 0) {
4234 gst_structure_get_uint (structure, "format", &fourcc);
4235 entry.fourcc = fourcc;
4236 } else if (strcmp (mimetype, "video/x-mp4-part") == 0) {
4239 gst_structure_get_uint (structure, "format", &fourcc);
4240 entry.fourcc = fourcc;
4241 } else if (strcmp (mimetype, "video/x-prores") == 0) {
4242 const gchar *variant;
4244 variant = gst_structure_get_string (structure, "variant");
4245 if (!variant || !g_strcmp0 (variant, "standard"))
4246 entry.fourcc = FOURCC_apcn;
4247 else if (!g_strcmp0 (variant, "lt"))
4248 entry.fourcc = FOURCC_apcs;
4249 else if (!g_strcmp0 (variant, "hq"))
4250 entry.fourcc = FOURCC_apch;
4251 else if (!g_strcmp0 (variant, "proxy"))
4252 entry.fourcc = FOURCC_apco;
4253 else if (!g_strcmp0 (variant, "4444"))
4254 entry.fourcc = FOURCC_ap4h;
4255 else if (!g_strcmp0 (variant, "4444xq"))
4256 entry.fourcc = FOURCC_ap4x;
4262 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT ||
4263 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4) {
4265 GstVideoColorimetry colorimetry;
4267 s = gst_structure_get_string (structure, "colorimetry");
4268 if (s && gst_video_colorimetry_from_string (&colorimetry, s)) {
4270 build_colr_extension (&colorimetry,
4271 qtmux_klass->format == GST_QT_MUX_FORMAT_MP4);
4273 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4277 if (qtmux_klass->format == GST_QT_MUX_FORMAT_QT
4278 || strcmp (mimetype, "image/x-j2c") == 0
4279 || strcmp (mimetype, "image/x-jpc") == 0) {
4281 GstVideoInterlaceMode interlace_mode;
4282 GstVideoFieldOrder field_order;
4285 if (strcmp (mimetype, "image/x-j2c") == 0 ||
4286 strcmp (mimetype, "image/x-jpc") == 0) {
4289 gst_structure_get_int (structure, "fields", &fields);
4292 s = gst_structure_get_string (structure, "interlace-mode");
4294 interlace_mode = gst_video_interlace_mode_from_string (s);
4298 1) ? GST_VIDEO_INTERLACE_MODE_PROGRESSIVE :
4299 GST_VIDEO_INTERLACE_MODE_MIXED;
4301 field_order = GST_VIDEO_FIELD_ORDER_UNKNOWN;
4302 if (interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED) {
4303 s = gst_structure_get_string (structure, "field-order");
4305 field_order = gst_video_field_order_from_string (s);
4308 ext_atom = build_fiel_extension (interlace_mode, field_order);
4310 ext_atom_list = g_list_append (ext_atom_list, ext_atom);
4313 /* ok, set the pad info accordingly */
4314 qtpad->fourcc = entry.fourcc;
4317 (SampleTableEntry *) atom_trak_set_video_type (qtpad->trak,
4318 qtmux->context, &entry, rate, ext_atom_list);
4319 if (strcmp (mimetype, "video/x-prores") == 0) {
4320 SampleTableEntryMP4V *mp4v = (SampleTableEntryMP4V *) qtpad->trak_ste;
4321 mp4v->spatial_quality = 0x3FF;
4322 mp4v->temporal_quality = 0;
4323 mp4v->vendor = FOURCC_appl;
4325 /* The 'clap' extension is also defined for MP4 but inventing values in
4326 * general seems a bit tricky for this one. We only write it for ProRes
4327 * then, where it is a requirement.
4329 * NTSC and PAL have special values, otherwise just take width and height
4331 if (width == 720 && (height == 480 || height == 486))
4332 ext_atom = build_clap_extension (704, 1, height, 1, 0, 1, 0, 1);
4333 else if (width == 720 && height == 576)
4334 ext_atom = build_clap_extension (768 * 54, 59, 576, 1, 0, 1, 0, 1);
4336 ext_atom = build_clap_extension (width, 1, height, 1, 0, 1, 0, 1);
4339 mp4v->extension_atoms = g_list_append (mp4v->extension_atoms, ext_atom);
4342 gst_object_unref (qtmux);
4348 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4349 GST_PAD_NAME (pad), caps);
4350 gst_object_unref (qtmux);
4353 refuse_renegotiation:
4355 GST_WARNING_OBJECT (qtmux,
4356 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4358 gst_object_unref (qtmux);
4364 gst_qt_mux_subtitle_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
4366 GstPad *pad = qtpad->collect.pad;
4367 GstQTMux *qtmux = GST_QT_MUX_CAST (gst_pad_get_parent (pad));
4368 GstStructure *structure;
4369 SubtitleSampleEntry entry = { 0, };
4371 /* does not go well to renegotiate stream mid-way, unless
4372 * the old caps are a subset of the new one (this means upstream
4373 * added more info to the caps, as both should be 'fixed' caps) */
4374 if (qtpad->fourcc) {
4375 GstCaps *current_caps;
4377 current_caps = gst_pad_get_current_caps (pad);
4378 g_assert (caps != NULL);
4380 if (!gst_qtmux_caps_is_subset_full (qtmux, current_caps, caps)) {
4381 gst_caps_unref (current_caps);
4382 goto refuse_renegotiation;
4384 GST_DEBUG_OBJECT (qtmux,
4385 "pad %s accepted renegotiation to %" GST_PTR_FORMAT " from %"
4386 GST_PTR_FORMAT, GST_PAD_NAME (pad), caps, current_caps);
4387 gst_caps_unref (current_caps);
4390 GST_DEBUG_OBJECT (qtmux, "%s:%s, caps=%" GST_PTR_FORMAT,
4391 GST_DEBUG_PAD_NAME (pad), caps);
4393 /* subtitles default */
4394 subtitle_sample_entry_init (&entry);
4395 qtpad->is_out_of_order = FALSE;
4396 qtpad->sync = FALSE;
4397 qtpad->sparse = TRUE;
4398 qtpad->prepare_buf_func = NULL;
4400 structure = gst_caps_get_structure (caps, 0);
4402 if (gst_structure_has_name (structure, "text/x-raw")) {
4403 const gchar *format = gst_structure_get_string (structure, "format");
4404 if (format && strcmp (format, "utf8") == 0) {
4405 entry.fourcc = FOURCC_tx3g;
4406 qtpad->prepare_buf_func = gst_qt_mux_prepare_tx3g_buffer;
4407 qtpad->create_empty_buffer = gst_qt_mux_create_empty_tx3g_buffer;
4414 qtpad->fourcc = entry.fourcc;
4416 (SampleTableEntry *) atom_trak_set_subtitle_type (qtpad->trak,
4417 qtmux->context, &entry);
4419 gst_object_unref (qtmux);
4425 GST_WARNING_OBJECT (qtmux, "pad %s refused caps %" GST_PTR_FORMAT,
4426 GST_PAD_NAME (pad), caps);
4427 gst_object_unref (qtmux);
4430 refuse_renegotiation:
4432 GST_WARNING_OBJECT (qtmux,
4433 "pad %s refused renegotiation to %" GST_PTR_FORMAT, GST_PAD_NAME (pad),
4435 gst_object_unref (qtmux);
4441 gst_qt_mux_sink_event (GstCollectPads * pads, GstCollectData * data,
4442 GstEvent * event, gpointer user_data)
4445 guint32 avg_bitrate = 0, max_bitrate = 0;
4446 GstPad *pad = data->pad;
4447 gboolean ret = TRUE;
4449 qtmux = GST_QT_MUX_CAST (user_data);
4450 switch (GST_EVENT_TYPE (event)) {
4451 case GST_EVENT_CAPS:
4454 GstQTPad *collect_pad;
4456 gst_event_parse_caps (event, &caps);
4458 /* find stream data */
4459 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4460 g_assert (collect_pad);
4461 g_assert (collect_pad->set_caps);
4463 ret = collect_pad->set_caps (collect_pad, caps);
4464 gst_event_unref (event);
4468 case GST_EVENT_TAG:{
4470 GstTagSetter *setter = GST_TAG_SETTER (qtmux);
4471 GstTagMergeMode mode;
4473 GstQTPad *collect_pad;
4475 GST_OBJECT_LOCK (qtmux);
4476 mode = gst_tag_setter_get_tag_merge_mode (setter);
4477 collect_pad = (GstQTPad *) gst_pad_get_element_private (pad);
4479 gst_event_parse_tag (event, &list);
4480 GST_DEBUG_OBJECT (qtmux, "received tag event on pad %s:%s : %"
4481 GST_PTR_FORMAT, GST_DEBUG_PAD_NAME (pad), list);
4483 if (gst_tag_list_get_scope (list) == GST_TAG_SCOPE_GLOBAL) {
4484 gst_tag_setter_merge_tags (setter, list, mode);
4485 qtmux->tags_changed = TRUE;
4487 if (!collect_pad->tags)
4488 collect_pad->tags = gst_tag_list_new_empty ();
4489 gst_tag_list_insert (collect_pad->tags, list, mode);
4490 collect_pad->tags_changed = TRUE;
4492 GST_OBJECT_UNLOCK (qtmux);
4494 if (gst_tag_list_get_uint (list, GST_TAG_BITRATE, &avg_bitrate) |
4495 gst_tag_list_get_uint (list, GST_TAG_MAXIMUM_BITRATE, &max_bitrate)) {
4496 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4499 if (avg_bitrate > 0 && avg_bitrate < G_MAXUINT32)
4500 qtpad->avg_bitrate = avg_bitrate;
4501 if (max_bitrate > 0 && max_bitrate < G_MAXUINT32)
4502 qtpad->max_bitrate = max_bitrate;
4505 if (gst_tag_list_get_string (list, GST_TAG_LANGUAGE_CODE, &code)) {
4506 const char *iso_code = gst_tag_get_language_code_iso_639_2T (code);
4508 GstQTPad *qtpad = gst_pad_get_element_private (pad);
4511 /* https://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html */
4512 qtpad->trak->mdia.mdhd.language_code =
4513 (iso_code[0] - 0x60) * 0x400 + (iso_code[1] - 0x60) * 0x20 +
4514 (iso_code[2] - 0x60);
4520 gst_event_unref (event);
4530 return gst_collect_pads_event_default (pads, data, event, FALSE);
4536 gst_qt_mux_release_pad (GstElement * element, GstPad * pad)
4538 GstQTMux *mux = GST_QT_MUX_CAST (element);
4541 GST_DEBUG_OBJECT (element, "Releasing %s:%s", GST_DEBUG_PAD_NAME (pad));
4543 for (walk = mux->sinkpads; walk; walk = g_slist_next (walk)) {
4544 GstQTPad *qtpad = (GstQTPad *) walk->data;
4545 GST_DEBUG ("Checking %s:%s", GST_DEBUG_PAD_NAME (qtpad->collect.pad));
4546 if (qtpad->collect.pad == pad) {
4547 /* this is it, remove */
4548 mux->sinkpads = g_slist_delete_link (mux->sinkpads, walk);
4549 gst_element_remove_pad (element, pad);
4554 gst_collect_pads_remove_pad (mux->collect, pad);
4558 gst_qt_mux_request_new_pad (GstElement * element,
4559 GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps)
4561 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
4562 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
4563 GstQTPad *collect_pad;
4565 GstQTPadSetCapsFunc setcaps_func;
4568 gboolean lock = TRUE;
4570 if (templ->direction != GST_PAD_SINK)
4571 goto wrong_direction;
4573 if (qtmux->state > GST_QT_MUX_STATE_STARTED)
4576 if (templ == gst_element_class_get_pad_template (klass, "audio_%u")) {
4577 setcaps_func = gst_qt_mux_audio_sink_set_caps;
4578 if (req_name != NULL && sscanf (req_name, "audio_%u", &pad_id) == 1) {
4579 name = g_strdup (req_name);
4581 name = g_strdup_printf ("audio_%u", qtmux->audio_pads++);
4583 } else if (templ == gst_element_class_get_pad_template (klass, "video_%u")) {
4584 setcaps_func = gst_qt_mux_video_sink_set_caps;
4585 if (req_name != NULL && sscanf (req_name, "video_%u", &pad_id) == 1) {
4586 name = g_strdup (req_name);
4588 name = g_strdup_printf ("video_%u", qtmux->video_pads++);
4590 } else if (templ == gst_element_class_get_pad_template (klass, "subtitle_%u")) {
4591 setcaps_func = gst_qt_mux_subtitle_sink_set_caps;
4592 if (req_name != NULL && sscanf (req_name, "subtitle_%u", &pad_id) == 1) {
4593 name = g_strdup (req_name);
4595 name = g_strdup_printf ("subtitle_%u", qtmux->subtitle_pads++);
4599 goto wrong_template;
4601 GST_DEBUG_OBJECT (qtmux, "Requested pad: %s", name);
4603 /* create pad and add to collections */
4604 newpad = gst_pad_new_from_template (templ, name);
4606 collect_pad = (GstQTPad *)
4607 gst_collect_pads_add_pad (qtmux->collect, newpad, sizeof (GstQTPad),
4608 (GstCollectDataDestroyNotify) (gst_qt_mux_pad_reset), lock);
4610 gst_qt_mux_pad_reset (collect_pad);
4611 collect_pad->trak = atom_trak_new (qtmux->context);
4612 atom_moov_add_trak (qtmux->moov, collect_pad->trak);
4614 qtmux->sinkpads = g_slist_append (qtmux->sinkpads, collect_pad);
4616 /* set up pad functions */
4617 collect_pad->set_caps = setcaps_func;
4619 gst_pad_set_active (newpad, TRUE);
4620 gst_element_add_pad (element, newpad);
4627 GST_WARNING_OBJECT (qtmux, "Request pad that is not a SINK pad.");
4632 GST_WARNING_OBJECT (qtmux, "Not providing request pad after stream start.");
4637 GST_WARNING_OBJECT (qtmux, "This is not our template!");
4643 gst_qt_mux_get_property (GObject * object,
4644 guint prop_id, GValue * value, GParamSpec * pspec)
4646 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4648 GST_OBJECT_LOCK (qtmux);
4650 case PROP_MOVIE_TIMESCALE:
4651 g_value_set_uint (value, qtmux->timescale);
4653 case PROP_TRAK_TIMESCALE:
4654 g_value_set_uint (value, qtmux->trak_timescale);
4657 g_value_set_boolean (value, qtmux->guess_pts);
4659 #ifndef GST_REMOVE_DEPRECATED
4660 case PROP_DTS_METHOD:
4661 g_value_set_enum (value, qtmux->dts_method);
4664 case PROP_FAST_START:
4665 g_value_set_boolean (value, qtmux->fast_start);
4667 case PROP_FAST_START_TEMP_FILE:
4668 g_value_set_string (value, qtmux->fast_start_file_path);
4670 case PROP_MOOV_RECOV_FILE:
4671 g_value_set_string (value, qtmux->moov_recov_file_path);
4673 case PROP_FRAGMENT_DURATION:
4674 g_value_set_uint (value, qtmux->fragment_duration);
4676 case PROP_STREAMABLE:
4677 g_value_set_boolean (value, qtmux->streamable);
4679 case PROP_RESERVED_MAX_DURATION:
4680 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4682 case PROP_RESERVED_DURATION_REMAINING:
4683 if (qtmux->reserved_duration_remaining == GST_CLOCK_TIME_NONE)
4684 g_value_set_uint64 (value, qtmux->reserved_max_duration);
4686 GstClockTime remaining = qtmux->reserved_duration_remaining;
4688 /* Report the remaining space as the calculated remaining, minus
4689 * however much we've muxed since the last update */
4690 if (remaining > qtmux->muxed_since_last_update)
4691 remaining -= qtmux->muxed_since_last_update;
4694 GST_LOG_OBJECT (qtmux, "reserved duration remaining - reporting %"
4695 G_GUINT64_FORMAT "(%" G_GUINT64_FORMAT " - %" G_GUINT64_FORMAT,
4696 remaining, qtmux->reserved_duration_remaining,
4697 qtmux->muxed_since_last_update);
4698 g_value_set_uint64 (value, remaining);
4701 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4702 g_value_set_uint64 (value, qtmux->reserved_moov_update_period);
4704 case PROP_RESERVED_BYTES_PER_SEC:
4705 g_value_set_uint (value, qtmux->reserved_bytes_per_sec_per_trak);
4708 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4711 GST_OBJECT_UNLOCK (qtmux);
4715 gst_qt_mux_generate_fast_start_file_path (GstQTMux * qtmux)
4719 g_free (qtmux->fast_start_file_path);
4720 qtmux->fast_start_file_path = NULL;
4722 tmp = g_strdup_printf ("%s%d", "qtmux", g_random_int ());
4723 qtmux->fast_start_file_path = g_build_filename (g_get_tmp_dir (), tmp, NULL);
4728 gst_qt_mux_set_property (GObject * object,
4729 guint prop_id, const GValue * value, GParamSpec * pspec)
4731 GstQTMux *qtmux = GST_QT_MUX_CAST (object);
4733 GST_OBJECT_LOCK (qtmux);
4735 case PROP_MOVIE_TIMESCALE:
4736 qtmux->timescale = g_value_get_uint (value);
4738 case PROP_TRAK_TIMESCALE:
4739 qtmux->trak_timescale = g_value_get_uint (value);
4742 qtmux->guess_pts = g_value_get_boolean (value);
4744 #ifndef GST_REMOVE_DEPRECATED
4745 case PROP_DTS_METHOD:
4746 qtmux->dts_method = g_value_get_enum (value);
4749 case PROP_FAST_START:
4750 qtmux->fast_start = g_value_get_boolean (value);
4752 case PROP_FAST_START_TEMP_FILE:
4753 g_free (qtmux->fast_start_file_path);
4754 qtmux->fast_start_file_path = g_value_dup_string (value);
4755 /* NULL means to generate a random one */
4756 if (!qtmux->fast_start_file_path) {
4757 gst_qt_mux_generate_fast_start_file_path (qtmux);
4760 case PROP_MOOV_RECOV_FILE:
4761 g_free (qtmux->moov_recov_file_path);
4762 qtmux->moov_recov_file_path = g_value_dup_string (value);
4764 case PROP_FRAGMENT_DURATION:
4765 qtmux->fragment_duration = g_value_get_uint (value);
4767 case PROP_STREAMABLE:{
4768 GstQTMuxClass *qtmux_klass =
4769 (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
4770 if (qtmux_klass->format == GST_QT_MUX_FORMAT_ISML) {
4771 qtmux->streamable = g_value_get_boolean (value);
4775 case PROP_RESERVED_MAX_DURATION:
4776 qtmux->reserved_max_duration = g_value_get_uint64 (value);
4778 case PROP_RESERVED_MOOV_UPDATE_PERIOD:
4779 qtmux->reserved_moov_update_period = g_value_get_uint64 (value);
4781 case PROP_RESERVED_BYTES_PER_SEC:
4782 qtmux->reserved_bytes_per_sec_per_trak = g_value_get_uint (value);
4785 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
4788 GST_OBJECT_UNLOCK (qtmux);
4791 static GstStateChangeReturn
4792 gst_qt_mux_change_state (GstElement * element, GstStateChange transition)
4794 GstStateChangeReturn ret;
4795 GstQTMux *qtmux = GST_QT_MUX_CAST (element);
4797 switch (transition) {
4798 case GST_STATE_CHANGE_NULL_TO_READY:
4800 case GST_STATE_CHANGE_READY_TO_PAUSED:
4801 gst_collect_pads_start (qtmux->collect);
4802 qtmux->state = GST_QT_MUX_STATE_STARTED;
4803 qtmux->first_tc = NULL;
4806 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
4808 case GST_STATE_CHANGE_PAUSED_TO_READY:
4809 gst_collect_pads_stop (qtmux->collect);
4815 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4817 switch (transition) {
4818 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
4820 case GST_STATE_CHANGE_PAUSED_TO_READY:
4821 gst_qt_mux_reset (qtmux, TRUE);
4823 case GST_STATE_CHANGE_READY_TO_NULL:
4833 gst_qt_mux_register (GstPlugin * plugin)
4835 GTypeInfo typeinfo = {
4836 sizeof (GstQTMuxClass),
4837 (GBaseInitFunc) gst_qt_mux_base_init,
4839 (GClassInitFunc) gst_qt_mux_class_init,
4844 (GInstanceInitFunc) gst_qt_mux_init,
4846 static const GInterfaceInfo tag_setter_info = {
4849 static const GInterfaceInfo tag_xmp_writer_info = {
4852 static const GInterfaceInfo preset_info = {
4856 GstQTMuxFormat format;
4857 GstQTMuxClassParams *params;
4860 GST_DEBUG_CATEGORY_INIT (gst_qt_mux_debug, "qtmux", 0, "QT Muxer");
4862 GST_LOG ("Registering muxers");
4865 GstQTMuxFormatProp *prop;
4866 GstCaps *subtitle_caps;
4868 prop = &gst_qt_mux_format_list[i];
4869 format = prop->format;
4870 if (format == GST_QT_MUX_FORMAT_NONE)
4873 /* create a cache for these properties */
4874 params = g_new0 (GstQTMuxClassParams, 1);
4875 params->prop = prop;
4876 params->src_caps = gst_static_caps_get (&prop->src_caps);
4877 params->video_sink_caps = gst_static_caps_get (&prop->video_sink_caps);
4878 params->audio_sink_caps = gst_static_caps_get (&prop->audio_sink_caps);
4879 subtitle_caps = gst_static_caps_get (&prop->subtitle_sink_caps);
4880 if (!gst_caps_is_equal (subtitle_caps, GST_CAPS_NONE)) {
4881 params->subtitle_sink_caps = subtitle_caps;
4883 gst_caps_unref (subtitle_caps);
4886 /* create the type now */
4887 type = g_type_register_static (GST_TYPE_ELEMENT, prop->type_name, &typeinfo,
4889 g_type_set_qdata (type, GST_QT_MUX_PARAMS_QDATA, (gpointer) params);
4890 g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, &tag_setter_info);
4891 g_type_add_interface_static (type, GST_TYPE_TAG_XMP_WRITER,
4892 &tag_xmp_writer_info);
4893 g_type_add_interface_static (type, GST_TYPE_PRESET, &preset_info);
4895 if (!gst_element_register (plugin, prop->name, prop->rank, type))
4901 GST_LOG ("Finished registering muxers");
4903 /* FIXME: ideally classification tag should be added and
4904 registered in gstreamer core gsttaglist
4907 GST_LOG ("Registering tags");
4909 gst_tag_register (GST_TAG_3GP_CLASSIFICATION, GST_TAG_FLAG_META,
4910 G_TYPE_STRING, GST_TAG_3GP_CLASSIFICATION, "content classification",
4911 gst_tag_merge_use_first);
4913 GST_LOG ("Finished registering tags");