2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>,
3 * <2006> Edward Hervey <bilboed@bilboed.com>
4 * <2006> Wim Taymans <wim@fluendo.com>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
28 #include <libavformat/avformat.h>
29 /* #include <ffmpeg/avi.h> */
31 #include <gst/base/gstflowcombiner.h>
34 #include "gstavcodecmap.h"
35 #include "gstavutils.h"
36 #include "gstavprotocol.h"
38 #define MAX_STREAMS 20
40 typedef struct _GstFFMpegDemux GstFFMpegDemux;
41 typedef struct _GstFFStream GstFFStream;
54 GstTagList *tags; /* stream tags */
57 struct _GstFFMpegDemux
61 /* We need to keep track of our pads, so we do so here. */
64 gboolean have_group_id;
67 AVFormatContext *context;
70 GstFFStream *streams[MAX_STREAMS];
72 GstFlowCombiner *flowcombiner;
74 gint videopads, audiopads;
76 GstClockTime start_time;
77 GstClockTime duration;
79 /* TRUE if working in pull-mode */
82 /* TRUE if the avformat demuxer can reliably handle streaming mode */
90 /* cached seek in READY */
93 /* cached upstream events */
102 typedef struct _GstFFMpegDemuxClass GstFFMpegDemuxClass;
104 struct _GstFFMpegDemuxClass
106 GstElementClass parent_class;
108 AVInputFormat *in_plugin;
109 GstPadTemplate *sinktempl;
110 GstPadTemplate *videosrctempl;
111 GstPadTemplate *audiosrctempl;
114 /* A number of function prototypes are given so we can refer to them later. */
115 static void gst_ffmpegdemux_class_init (GstFFMpegDemuxClass * klass);
116 static void gst_ffmpegdemux_base_init (GstFFMpegDemuxClass * klass);
117 static void gst_ffmpegdemux_init (GstFFMpegDemux * demux);
118 static void gst_ffmpegdemux_finalize (GObject * object);
120 static gboolean gst_ffmpegdemux_sink_event (GstPad * sinkpad,
121 GstObject * parent, GstEvent * event);
122 static GstFlowReturn gst_ffmpegdemux_chain (GstPad * sinkpad,
123 GstObject * parent, GstBuffer * buf);
125 static void gst_ffmpegdemux_loop (GstFFMpegDemux * demux);
126 static gboolean gst_ffmpegdemux_sink_activate (GstPad * sinkpad,
128 static gboolean gst_ffmpegdemux_sink_activate_mode (GstPad * sinkpad,
129 GstObject * parent, GstPadMode mode, gboolean active);
130 static GstTagList *gst_ffmpeg_metadata_to_tag_list (AVDictionary * metadata);
134 gst_ffmpegdemux_src_convert (GstPad * pad,
136 gint64 src_value, GstFormat * dest_fmt, gint64 * dest_value);
139 gst_ffmpegdemux_send_event (GstElement * element, GstEvent * event);
140 static GstStateChangeReturn
141 gst_ffmpegdemux_change_state (GstElement * element, GstStateChange transition);
143 #define GST_FFDEMUX_PARAMS_QDATA g_quark_from_static_string("avdemux-params")
145 static GstElementClass *parent_class = NULL;
148 gst_ffmpegdemux_averror (gint av_errno)
150 const gchar *message = NULL;
153 case AVERROR (EINVAL):
154 message = "Unknown error";
157 message = "Input/output error";
160 message = "Number syntax expected in filename";
162 case AVERROR (ENOMEM):
163 message = "Not enough memory";
165 case AVERROR (EILSEQ):
166 message = "Unknown format";
168 case AVERROR (ENOSYS):
169 message = "Operation not supported";
172 message = "Unhandled error code received";
180 gst_ffmpegdemux_base_init (GstFFMpegDemuxClass * klass)
182 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
183 AVInputFormat *in_plugin;
185 GstPadTemplate *sinktempl, *audiosrctempl, *videosrctempl;
186 gchar *longname, *description, *name;
188 in_plugin = (AVInputFormat *)
189 g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass), GST_FFDEMUX_PARAMS_QDATA);
190 g_assert (in_plugin != NULL);
192 name = g_strdup (in_plugin->name);
193 g_strdelimit (name, ".,|-<> ", '_');
195 /* construct the element details struct */
196 longname = g_strdup_printf ("libav %s demuxer", in_plugin->long_name);
197 description = g_strdup_printf ("libav %s demuxer", in_plugin->long_name);
198 gst_element_class_set_metadata (element_class, longname,
199 "Codec/Demuxer", description,
200 "Wim Taymans <wim@fluendo.com>, "
201 "Ronald Bultje <rbultje@ronald.bitfreak.net>, "
202 "Edward Hervey <bilboed@bilboed.com>");
204 g_free (description);
207 sinkcaps = gst_ffmpeg_formatid_to_caps (name);
208 sinktempl = gst_pad_template_new ("sink",
209 GST_PAD_SINK, GST_PAD_ALWAYS, sinkcaps);
211 videosrctempl = gst_pad_template_new ("video_%u",
212 GST_PAD_SRC, GST_PAD_SOMETIMES, GST_CAPS_ANY);
213 audiosrctempl = gst_pad_template_new ("audio_%u",
214 GST_PAD_SRC, GST_PAD_SOMETIMES, GST_CAPS_ANY);
216 gst_element_class_add_pad_template (element_class, videosrctempl);
217 gst_element_class_add_pad_template (element_class, audiosrctempl);
218 gst_element_class_add_pad_template (element_class, sinktempl);
220 gst_caps_unref (sinkcaps);
222 klass->in_plugin = in_plugin;
223 klass->videosrctempl = videosrctempl;
224 klass->audiosrctempl = audiosrctempl;
225 klass->sinktempl = sinktempl;
229 gst_ffmpegdemux_class_init (GstFFMpegDemuxClass * klass)
231 GObjectClass *gobject_class;
232 GstElementClass *gstelement_class;
234 gobject_class = (GObjectClass *) klass;
235 gstelement_class = (GstElementClass *) klass;
237 parent_class = g_type_class_peek_parent (klass);
239 gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_ffmpegdemux_finalize);
241 gstelement_class->change_state = gst_ffmpegdemux_change_state;
242 gstelement_class->send_event = gst_ffmpegdemux_send_event;
246 gst_ffmpegdemux_init (GstFFMpegDemux * demux)
248 GstFFMpegDemuxClass *oclass =
249 (GstFFMpegDemuxClass *) (G_OBJECT_GET_CLASS (demux));
252 demux->sinkpad = gst_pad_new_from_template (oclass->sinktempl, "sink");
253 gst_pad_set_activate_function (demux->sinkpad,
254 GST_DEBUG_FUNCPTR (gst_ffmpegdemux_sink_activate));
255 gst_pad_set_activatemode_function (demux->sinkpad,
256 GST_DEBUG_FUNCPTR (gst_ffmpegdemux_sink_activate_mode));
257 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
259 /* push based setup */
260 /* the following are not used in pull-based mode, so safe to set anyway */
261 gst_pad_set_event_function (demux->sinkpad,
262 GST_DEBUG_FUNCPTR (gst_ffmpegdemux_sink_event));
263 gst_pad_set_chain_function (demux->sinkpad,
264 GST_DEBUG_FUNCPTR (gst_ffmpegdemux_chain));
265 /* task for driving ffmpeg in loop function */
267 gst_task_new ((GstTaskFunction) gst_ffmpegdemux_loop, demux, NULL);
268 g_rec_mutex_init (&demux->task_lock);
269 gst_task_set_lock (demux->task, &demux->task_lock);
271 demux->have_group_id = FALSE;
272 demux->group_id = G_MAXUINT;
274 demux->opened = FALSE;
275 demux->context = NULL;
277 for (n = 0; n < MAX_STREAMS; n++) {
278 demux->streams[n] = NULL;
280 demux->videopads = 0;
281 demux->audiopads = 0;
283 demux->seek_event = NULL;
284 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
286 demux->flowcombiner = gst_flow_combiner_new ();
288 /* push based data */
289 g_mutex_init (&demux->ffpipe.tlock);
290 g_cond_init (&demux->ffpipe.cond);
291 demux->ffpipe.adapter = gst_adapter_new ();
293 /* blacklist unreliable push-based demuxers */
294 if (strcmp (oclass->in_plugin->name, "ape"))
295 demux->can_push = TRUE;
297 demux->can_push = FALSE;
301 gst_ffmpegdemux_finalize (GObject * object)
303 GstFFMpegDemux *demux;
305 demux = (GstFFMpegDemux *) object;
307 gst_flow_combiner_free (demux->flowcombiner);
309 g_mutex_clear (&demux->ffpipe.tlock);
310 g_cond_clear (&demux->ffpipe.cond);
311 gst_object_unref (demux->ffpipe.adapter);
313 gst_object_unref (demux->task);
314 g_rec_mutex_clear (&demux->task_lock);
316 G_OBJECT_CLASS (parent_class)->finalize (object);
320 gst_ffmpegdemux_close (GstFFMpegDemux * demux)
328 /* remove pads from ourselves */
329 for (n = 0; n < MAX_STREAMS; n++) {
332 stream = demux->streams[n];
335 gst_flow_combiner_remove_pad (demux->flowcombiner, stream->pad);
336 gst_element_remove_pad (GST_ELEMENT (demux), stream->pad);
339 gst_tag_list_unref (stream->tags);
342 demux->streams[n] = NULL;
344 demux->videopads = 0;
345 demux->audiopads = 0;
347 /* close demuxer context from ffmpeg */
349 gst_ffmpegdata_close (demux->context->pb);
351 gst_ffmpeg_pipe_close (demux->context->pb);
352 demux->context->pb = NULL;
353 avformat_close_input (&demux->context);
355 avformat_free_context (demux->context);
356 demux->context = NULL;
358 GST_OBJECT_LOCK (demux);
359 demux->opened = FALSE;
360 event_p = &demux->seek_event;
361 gst_event_replace (event_p, NULL);
362 GST_OBJECT_UNLOCK (demux);
364 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
367 /* send an event to all the source pads .
368 * Takes ownership of the event.
370 * Returns FALSE if none of the source pads handled the event.
373 gst_ffmpegdemux_push_event (GstFFMpegDemux * demux, GstEvent * event)
380 for (n = 0; n < MAX_STREAMS; n++) {
381 GstFFStream *s = demux->streams[n];
384 gst_event_ref (event);
385 res &= gst_pad_push_event (s->pad, event);
388 gst_event_unref (event);
393 /* set flags on all streams */
395 gst_ffmpegdemux_set_flags (GstFFMpegDemux * demux, gboolean discont,
401 for (n = 0; n < MAX_STREAMS; n++) {
402 if ((s = demux->streams[n])) {
403 s->discont = discont;
409 /* check if all streams are eos */
411 gst_ffmpegdemux_is_eos (GstFFMpegDemux * demux)
416 for (n = 0; n < MAX_STREAMS; n++) {
417 if ((s = demux->streams[n])) {
418 GST_DEBUG ("stream %d %p eos:%d", n, s, s->eos);
426 /* Returns True if we at least outputted one buffer */
428 gst_ffmpegdemux_has_outputted (GstFFMpegDemux * demux)
433 for (n = 0; n < MAX_STREAMS; n++) {
434 if ((s = demux->streams[n])) {
435 if (GST_CLOCK_TIME_IS_VALID (s->last_ts))
443 gst_ffmpegdemux_do_seek (GstFFMpegDemux * demux, GstSegment * segment)
452 /* find default index and fail if none is present */
453 index = av_find_default_stream_index (demux->context);
454 GST_LOG_OBJECT (demux, "default stream index %d", index);
460 /* get the stream for seeking */
461 stream = demux->context->streams[index];
462 /* initial seek position */
463 target = segment->position;
464 /* convert target to ffmpeg time */
465 fftarget = gst_ffmpeg_time_gst_to_ff (target, stream->time_base);
467 GST_LOG_OBJECT (demux, "do seek to time %" GST_TIME_FORMAT,
468 GST_TIME_ARGS (target));
470 /* if we need to land on a keyframe, try to do so, we don't try to do a
471 * keyframe seek if we are not absolutely sure we have an index.*/
472 if (segment->flags & GST_SEEK_FLAG_KEY_UNIT) {
475 GST_LOG_OBJECT (demux, "looking for keyframe in ffmpeg for time %"
476 GST_TIME_FORMAT, GST_TIME_ARGS (target));
478 /* search in the index for the previous keyframe */
480 av_index_search_timestamp (stream, fftarget, AVSEEK_FLAG_BACKWARD);
482 GST_LOG_OBJECT (demux, "keyframeidx: %d", keyframeidx);
484 if (keyframeidx >= 0) {
485 fftarget = stream->index_entries[keyframeidx].timestamp;
486 target = gst_ffmpeg_time_ff_to_gst (fftarget, stream->time_base);
488 GST_LOG_OBJECT (demux,
489 "Found a keyframe at ffmpeg idx: %d timestamp :%" GST_TIME_FORMAT,
490 keyframeidx, GST_TIME_ARGS (target));
494 GST_DEBUG_OBJECT (demux,
495 "About to call av_seek_frame (context, %d, %" G_GINT64_FORMAT
496 ", 0) for time %" GST_TIME_FORMAT, index, fftarget,
497 GST_TIME_ARGS (target));
500 av_seek_frame (demux->context, index, fftarget,
501 AVSEEK_FLAG_BACKWARD)) < 0)
504 GST_DEBUG_OBJECT (demux, "seek success, returned %d", seekret);
506 segment->position = target;
507 segment->time = target;
508 segment->start = target;
515 GST_WARNING_OBJECT (demux, "Call to av_seek_frame failed : %d", seekret);
521 gst_ffmpegdemux_perform_seek (GstFFMpegDemux * demux, GstEvent * event)
527 GstSeekType cur_type, stop_type;
531 GstSegment seeksegment;
533 if (!demux->seekable) {
534 GST_DEBUG_OBJECT (demux, "in push mode; ignoring seek");
538 GST_DEBUG_OBJECT (demux, "starting seek");
541 gst_event_parse_seek (event, &rate, &format, &flags,
542 &cur_type, &cur, &stop_type, &stop);
544 /* we have to have a format as the segment format. Try to convert
546 if (demux->segment.format != format) {
549 fmt = demux->segment.format;
551 /* FIXME, use source pad */
552 if (cur_type != GST_SEEK_TYPE_NONE && cur != -1)
553 res = gst_pad_query_convert (demux->sinkpad, format, cur, fmt, &cur);
554 if (res && stop_type != GST_SEEK_TYPE_NONE && stop != -1)
555 res = gst_pad_query_convert (demux->sinkpad, format, stop, fmt, &stop);
565 flush = flags & GST_SEEK_FLAG_FLUSH;
567 /* send flush start */
569 /* mark flushing so that the streaming thread can react on it */
570 GST_OBJECT_LOCK (demux);
571 demux->flushing = TRUE;
572 GST_OBJECT_UNLOCK (demux);
573 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
574 gst_ffmpegdemux_push_event (demux, gst_event_new_flush_start ());
576 gst_pad_pause_task (demux->sinkpad);
579 /* grab streaming lock, this should eventually be possible, either
580 * because the task is paused or our streaming thread stopped
581 * because our peer is flushing. */
582 GST_PAD_STREAM_LOCK (demux->sinkpad);
584 /* make copy into temp structure, we can only update the main one
585 * when we actually could do the seek. */
586 memcpy (&seeksegment, &demux->segment, sizeof (GstSegment));
588 /* now configure the seek segment */
590 gst_segment_do_seek (&seeksegment, rate, format, flags,
591 cur_type, cur, stop_type, stop, &update);
594 GST_DEBUG_OBJECT (demux, "segment configured from %" G_GINT64_FORMAT
595 " to %" G_GINT64_FORMAT ", position %" G_GINT64_FORMAT,
596 seeksegment.start, seeksegment.stop, seeksegment.position);
598 /* make the sinkpad available for data passing since we might need
599 * it when doing the seek */
601 GST_OBJECT_LOCK (demux);
602 demux->flushing = FALSE;
603 GST_OBJECT_UNLOCK (demux);
604 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop (TRUE));
607 /* do the seek, segment.position contains new position. */
608 res = gst_ffmpegdemux_do_seek (demux, &seeksegment);
610 /* and prepare to continue streaming */
612 /* send flush stop, peer will accept data and events again. We
613 * are not yet providing data as we still have the STREAM_LOCK. */
614 gst_ffmpegdemux_push_event (demux, gst_event_new_flush_stop (TRUE));
616 /* if successfull seek, we update our real segment and push
617 * out the new segment. */
619 memcpy (&demux->segment, &seeksegment, sizeof (GstSegment));
621 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
622 gst_element_post_message (GST_ELEMENT (demux),
623 gst_message_new_segment_start (GST_OBJECT (demux),
624 demux->segment.format, demux->segment.position));
627 /* now send the newsegment, FIXME, do this from the streaming thread */
628 GST_DEBUG_OBJECT (demux, "Sending newsegment %" GST_SEGMENT_FORMAT,
631 gst_ffmpegdemux_push_event (demux, gst_event_new_segment (&demux->segment));
634 /* Mark discont on all srcpads and remove eos */
635 gst_ffmpegdemux_set_flags (demux, TRUE, FALSE);
636 gst_flow_combiner_reset (demux->flowcombiner);
638 /* and restart the task in case it got paused explicitely or by
639 * the FLUSH_START event we pushed out. */
640 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_ffmpegdemux_loop,
641 demux->sinkpad, NULL);
643 /* and release the lock again so we can continue streaming */
644 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
651 GST_DEBUG_OBJECT (demux, "undefined format given, seek aborted.");
657 gst_ffmpegdemux_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
659 GstFFMpegDemux *demux;
662 demux = (GstFFMpegDemux *) parent;
664 switch (GST_EVENT_TYPE (event)) {
666 res = gst_ffmpegdemux_perform_seek (demux, event);
667 gst_event_unref (event);
669 case GST_EVENT_LATENCY:
670 res = gst_pad_push_event (demux->sinkpad, event);
672 case GST_EVENT_NAVIGATION:
676 gst_event_unref (event);
684 gst_ffmpegdemux_send_event (GstElement * element, GstEvent * event)
686 GstFFMpegDemux *demux = (GstFFMpegDemux *) (element);
689 switch (GST_EVENT_TYPE (event)) {
691 GST_OBJECT_LOCK (demux);
692 if (!demux->opened) {
695 GST_DEBUG_OBJECT (demux, "caching seek event");
696 event_p = &demux->seek_event;
697 gst_event_replace (event_p, event);
698 GST_OBJECT_UNLOCK (demux);
702 GST_OBJECT_UNLOCK (demux);
703 res = gst_ffmpegdemux_perform_seek (demux, event);
704 gst_event_unref (event);
716 gst_ffmpegdemux_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
718 GstFFMpegDemux *demux;
721 gboolean res = FALSE;
723 if (!(stream = gst_pad_get_element_private (pad)))
726 avstream = stream->avstream;
728 demux = (GstFFMpegDemux *) parent;
730 switch (GST_QUERY_TYPE (query)) {
731 case GST_QUERY_POSITION:
736 gst_query_parse_position (query, &format, NULL);
738 timeposition = stream->last_ts;
739 if (!(GST_CLOCK_TIME_IS_VALID (timeposition)))
743 case GST_FORMAT_TIME:
744 gst_query_set_position (query, GST_FORMAT_TIME, timeposition);
747 case GST_FORMAT_DEFAULT:
748 gst_query_set_position (query, GST_FORMAT_DEFAULT,
749 gst_util_uint64_scale (timeposition, avstream->avg_frame_rate.num,
750 GST_SECOND * avstream->avg_frame_rate.den));
753 case GST_FORMAT_BYTES:
754 if (demux->videopads + demux->audiopads == 1 &&
755 GST_PAD_PEER (demux->sinkpad) != NULL)
756 res = gst_pad_query_default (pad, parent, query);
763 case GST_QUERY_DURATION:
768 gst_query_parse_duration (query, &format, NULL);
771 gst_ffmpeg_time_ff_to_gst (avstream->duration, avstream->time_base);
772 if (!(GST_CLOCK_TIME_IS_VALID (timeduration))) {
773 /* use duration of complete file if the stream duration is not known */
774 timeduration = demux->duration;
775 if (!(GST_CLOCK_TIME_IS_VALID (timeduration)))
780 case GST_FORMAT_TIME:
781 gst_query_set_duration (query, GST_FORMAT_TIME, timeduration);
784 case GST_FORMAT_DEFAULT:
785 gst_query_set_duration (query, GST_FORMAT_DEFAULT,
786 gst_util_uint64_scale (timeduration, avstream->avg_frame_rate.num,
787 GST_SECOND * avstream->avg_frame_rate.den));
790 case GST_FORMAT_BYTES:
791 if (demux->videopads + demux->audiopads == 1 &&
792 GST_PAD_PEER (demux->sinkpad) != NULL)
793 res = gst_pad_query_default (pad, parent, query);
800 case GST_QUERY_SEEKING:{
805 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
806 seekable = demux->seekable;
807 if (!gst_pad_query_duration (pad, format, &dur)) {
808 /* unlikely that we don't know duration but can seek */
812 gst_query_set_seeking (query, format, seekable, 0, dur);
816 case GST_QUERY_SEGMENT:{
820 format = demux->segment.format;
823 gst_segment_to_stream_time (&demux->segment, format,
824 demux->segment.start);
825 if ((stop = demux->segment.stop) == -1)
826 stop = demux->segment.duration;
828 stop = gst_segment_to_stream_time (&demux->segment, format, stop);
830 gst_query_set_segment (query, demux->segment.rate, format, start, stop);
835 /* FIXME : ADD GST_QUERY_CONVERT */
836 res = gst_pad_query_default (pad, parent, query);
844 /* FIXME, reenable me */
846 gst_ffmpegdemux_src_convert (GstPad * pad,
848 gint64 src_value, GstFormat * dest_fmt, gint64 * dest_value)
854 if (!(stream = gst_pad_get_element_private (pad)))
857 avstream = stream->avstream;
858 if (avstream->codec->codec_type != AVMEDIA_TYPE_VIDEO)
862 case GST_FORMAT_TIME:
864 case GST_FORMAT_DEFAULT:
865 *dest_value = gst_util_uint64_scale (src_value,
866 avstream->avg_frame_rate.num,
867 GST_SECOND * avstream->avg_frame_rate.den);
874 case GST_FORMAT_DEFAULT:
876 case GST_FORMAT_TIME:
877 *dest_value = gst_util_uint64_scale (src_value,
878 GST_SECOND * avstream->avg_frame_rate.num,
879 avstream->avg_frame_rate.den);
896 gst_ffmpegdemux_create_padname (const gchar * templ, gint n)
900 /* FIXME, we just want to printf the number according to the template but
901 * then the format string is not a literal and we can't check arguments and
902 * this generates a compiler error */
903 string = g_string_new (templ);
904 g_string_truncate (string, string->len - 2);
905 g_string_append_printf (string, "%u", n);
907 return g_string_free (string, FALSE);
911 gst_ffmpegdemux_get_stream (GstFFMpegDemux * demux, AVStream * avstream)
913 GstFFMpegDemuxClass *oclass;
914 GstPadTemplate *templ = NULL;
925 ctx = avstream->codec;
927 oclass = (GstFFMpegDemuxClass *) G_OBJECT_GET_CLASS (demux);
929 if (demux->streams[avstream->index] != NULL)
932 /* create new stream */
933 stream = g_new0 (GstFFStream, 1);
934 demux->streams[avstream->index] = stream;
936 /* mark stream as unknown */
937 stream->unknown = TRUE;
938 stream->discont = TRUE;
939 stream->avstream = avstream;
940 stream->last_ts = GST_CLOCK_TIME_NONE;
943 switch (ctx->codec_type) {
944 case AVMEDIA_TYPE_VIDEO:
945 templ = oclass->videosrctempl;
946 num = demux->videopads++;
948 case AVMEDIA_TYPE_AUDIO:
949 templ = oclass->audiosrctempl;
950 num = demux->audiopads++;
956 /* get caps that belongs to this stream */
957 caps = gst_ffmpeg_codecid_to_caps (ctx->codec_id, ctx, TRUE);
961 /* stream is known now */
962 stream->unknown = FALSE;
964 /* create new pad for this stream */
966 gst_ffmpegdemux_create_padname (GST_PAD_TEMPLATE_NAME_TEMPLATE (templ),
968 pad = gst_pad_new_from_template (templ, padname);
971 gst_pad_use_fixed_caps (pad);
972 gst_pad_set_active (pad, TRUE);
974 gst_pad_set_query_function (pad, gst_ffmpegdemux_src_query);
975 gst_pad_set_event_function (pad, gst_ffmpegdemux_src_event);
977 /* store pad internally */
979 gst_pad_set_element_private (pad, stream);
981 /* transform some useful info to GstClockTime and remember */
985 /* FIXME, actually use the start_time in some way */
986 tmp = gst_ffmpeg_time_ff_to_gst (avstream->start_time, avstream->time_base);
987 GST_DEBUG_OBJECT (demux, "stream %d: start time: %" GST_TIME_FORMAT,
988 avstream->index, GST_TIME_ARGS (tmp));
990 tmp = gst_ffmpeg_time_ff_to_gst (avstream->duration, avstream->time_base);
991 GST_DEBUG_OBJECT (demux, "stream %d: duration: %" GST_TIME_FORMAT,
992 avstream->index, GST_TIME_ARGS (tmp));
995 demux->streams[avstream->index] = stream;
999 gst_pad_create_stream_id_printf (pad, GST_ELEMENT_CAST (demux), "%03u",
1002 event = gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
1004 if (gst_event_parse_group_id (event, &demux->group_id))
1005 demux->have_group_id = TRUE;
1007 demux->have_group_id = FALSE;
1008 gst_event_unref (event);
1009 } else if (!demux->have_group_id) {
1010 demux->have_group_id = TRUE;
1011 demux->group_id = gst_util_group_id_next ();
1013 event = gst_event_new_stream_start (stream_id);
1014 if (demux->have_group_id)
1015 gst_event_set_group_id (event, demux->group_id);
1017 gst_pad_push_event (pad, event);
1020 GST_INFO_OBJECT (pad, "adding pad with caps %" GST_PTR_FORMAT, caps);
1021 gst_pad_set_caps (pad, caps);
1022 gst_caps_unref (caps);
1024 /* activate and add */
1025 gst_element_add_pad (GST_ELEMENT (demux), pad);
1026 gst_flow_combiner_add_pad (demux->flowcombiner, pad);
1029 if ((codec = gst_ffmpeg_get_codecid_longname (ctx->codec_id))) {
1030 stream->tags = gst_ffmpeg_metadata_to_tag_list (avstream->metadata);
1032 if (stream->tags == NULL)
1033 stream->tags = gst_tag_list_new_empty ();
1035 gst_tag_list_add (stream->tags, GST_TAG_MERGE_REPLACE,
1036 (ctx->codec_type == AVMEDIA_TYPE_VIDEO) ?
1037 GST_TAG_VIDEO_CODEC : GST_TAG_AUDIO_CODEC, codec, NULL);
1045 GST_DEBUG_OBJECT (demux, "Pad existed (stream %d)", avstream->index);
1046 return demux->streams[avstream->index];
1050 GST_WARNING_OBJECT (demux, "Unknown pad type %d", ctx->codec_type);
1055 GST_WARNING_OBJECT (demux, "Unknown caps for codec %d", ctx->codec_id);
1061 safe_utf8_copy (gchar * input)
1065 if (!(g_utf8_validate (input, -1, NULL))) {
1066 output = g_convert (input, strlen (input),
1067 "UTF-8", "ISO-8859-1", NULL, NULL, NULL);
1069 output = g_strdup (input);
1075 /* g_hash_table_insert requires non-const arguments, so
1076 * we need to cast const strings to void * */
1077 #define ADD_TAG_MAPPING(h, k, g) \
1078 g_hash_table_insert ((h), (void *) (k), (void *) (g));
1081 gst_ffmpeg_metadata_to_tag_list (AVDictionary * metadata)
1083 GHashTable *tagmap = NULL;
1084 AVDictionaryEntry *tag = NULL;
1087 if (g_once_init_enter (&tagmap)) {
1088 GHashTable *tmp = g_hash_table_new (g_str_hash, g_str_equal);
1090 /* This is a list of standard tag keys taken from the avformat.h
1091 * header, without handling any variants. */
1092 ADD_TAG_MAPPING (tmp, "album", GST_TAG_ALBUM);
1093 ADD_TAG_MAPPING (tmp, "album_artist", GST_TAG_ALBUM_ARTIST);
1094 ADD_TAG_MAPPING (tmp, "artist", GST_TAG_ARTIST);
1095 ADD_TAG_MAPPING (tmp, "comment", GST_TAG_COMMENT);
1096 ADD_TAG_MAPPING (tmp, "composer", GST_TAG_COMPOSER);
1097 ADD_TAG_MAPPING (tmp, "copyright", GST_TAG_COPYRIGHT);
1098 /* Need to convert ISO 8601 to GstDateTime: */
1099 ADD_TAG_MAPPING (tmp, "creation_time", GST_TAG_DATE_TIME);
1100 /* Need to convert ISO 8601 to GDateTime: */
1101 ADD_TAG_MAPPING (tmp, "date", GST_TAG_DATE_TIME);
1102 ADD_TAG_MAPPING (tmp, "disc", GST_TAG_ALBUM_VOLUME_NUMBER);
1103 ADD_TAG_MAPPING (tmp, "encoder", GST_TAG_ENCODER);
1104 ADD_TAG_MAPPING (tmp, "encoded_by", GST_TAG_ENCODED_BY);
1105 /* ADD_TAG_MAPPING (tmp, "filename", ); -- No mapping */
1106 ADD_TAG_MAPPING (tmp, "genre", GST_TAG_GENRE);
1107 ADD_TAG_MAPPING (tmp, "language", GST_TAG_LANGUAGE_CODE);
1108 ADD_TAG_MAPPING (tmp, "performer", GST_TAG_PERFORMER);
1109 ADD_TAG_MAPPING (tmp, "publisher", GST_TAG_PUBLISHER);
1110 /* ADD_TAG_MAPPING(tmp, "service_name", ); -- No mapping */
1111 /* ADD_TAG_MAPPING(tmp, "service_provider", ); -- No mapping */
1112 ADD_TAG_MAPPING (tmp, "title", GST_TAG_TITLE);
1113 ADD_TAG_MAPPING (tmp, "track", GST_TAG_TRACK_NUMBER);
1115 g_once_init_leave (&tagmap, tmp);
1118 list = gst_tag_list_new_empty ();
1120 while ((tag = av_dict_get (metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
1121 const gchar *gsttag = g_hash_table_lookup (tagmap, tag->key);
1123 GST_LOG ("mapping tag %s=%s\n", tag->key, tag->value);
1124 if (gsttag == NULL) {
1125 GST_LOG ("Ignoring unknown metadata tag %s", tag->key);
1128 /* Special case, track and disc numbers may be x/n in libav, split
1130 if (g_str_equal (gsttag, GST_TAG_TRACK_NUMBER)) {
1131 guint track, trackcount;
1132 if (sscanf (tag->value, "%u/%u", &track, &trackcount) == 2) {
1133 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
1134 gsttag, track, GST_TAG_TRACK_COUNT, trackcount, NULL);
1137 /* Fall through and handle as a single uint below */
1138 } else if (g_str_equal (gsttag, GST_TAG_ALBUM_VOLUME_NUMBER)) {
1139 guint disc, disc_count;
1140 if (sscanf (tag->value, "%u/%u", &disc, &disc_count) == 2) {
1141 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
1142 gsttag, disc, GST_TAG_ALBUM_VOLUME_COUNT, disc_count, NULL);
1145 /* Fall through and handle as a single uint below */
1148 t = gst_tag_get_type (gsttag);
1149 if (t == G_TYPE_STRING) {
1150 gchar *s = safe_utf8_copy (tag->value);
1151 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, gsttag, s, NULL);
1153 } else if (t == G_TYPE_UINT || t == G_TYPE_INT) {
1155 gint v = strtol (tag->value, &end, 10);
1156 if (end == tag->value)
1157 continue; /* Failed to parse */
1158 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, gsttag, v, NULL);
1159 } else if (t == G_TYPE_DATE) {
1160 guint year, month, day;
1162 if (sscanf (tag->value, "%04u-%02u-%02u", &year, &month, &day) == 3) {
1163 date = g_date_new_dmy (day, month, year);
1165 /* Try interpreting just as a year */
1168 year = strtol (tag->value, &end, 10);
1169 if (end != tag->value)
1170 date = g_date_new_dmy (1, 1, year);
1173 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, gsttag, date, NULL);
1176 } else if (t == GST_TYPE_DATE_TIME) {
1177 gchar *s = safe_utf8_copy (tag->value);
1178 GstDateTime *d = gst_date_time_new_from_iso8601_string (s);
1182 gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, gsttag, d, NULL);
1183 gst_date_time_unref (d);
1186 GST_FIXME ("Unhandled tag %s", gsttag);
1190 if (gst_tag_list_is_empty (list)) {
1191 gst_tag_list_unref (list);
1199 gst_ffmpegdemux_open (GstFFMpegDemux * demux)
1201 AVIOContext *iocontext = NULL;
1202 GstFFMpegDemuxClass *oclass =
1203 (GstFFMpegDemuxClass *) G_OBJECT_GET_CLASS (demux);
1204 gint res, n_streams, i;
1207 GList *cached_events;
1210 gst_ffmpegdemux_close (demux);
1212 /* open via our input protocol hack */
1213 if (demux->seekable)
1214 res = gst_ffmpegdata_open (demux->sinkpad, AVIO_FLAG_READ, &iocontext);
1216 res = gst_ffmpeg_pipe_open (&demux->ffpipe, AVIO_FLAG_READ, &iocontext);
1221 demux->context = avformat_alloc_context ();
1222 demux->context->pb = iocontext;
1223 res = avformat_open_input (&demux->context, NULL, oclass->in_plugin, NULL);
1225 GST_DEBUG_OBJECT (demux, "av_open_input returned %d", res);
1229 res = gst_ffmpeg_av_find_stream_info (demux->context);
1230 GST_DEBUG_OBJECT (demux, "av_find_stream_info returned %d", res);
1234 n_streams = demux->context->nb_streams;
1235 GST_DEBUG_OBJECT (demux, "we have %d streams", n_streams);
1237 /* open_input_file() automatically reads the header. We can now map each
1238 * created AVStream to a GstPad to make GStreamer handle it. */
1239 for (i = 0; i < n_streams; i++) {
1240 gst_ffmpegdemux_get_stream (demux, demux->context->streams[i]);
1243 gst_element_no_more_pads (GST_ELEMENT (demux));
1245 /* transform some useful info to GstClockTime and remember */
1246 demux->start_time = gst_util_uint64_scale_int (demux->context->start_time,
1247 GST_SECOND, AV_TIME_BASE);
1248 GST_DEBUG_OBJECT (demux, "start time: %" GST_TIME_FORMAT,
1249 GST_TIME_ARGS (demux->start_time));
1250 if (demux->context->duration > 0)
1251 demux->duration = gst_util_uint64_scale_int (demux->context->duration,
1252 GST_SECOND, AV_TIME_BASE);
1254 demux->duration = GST_CLOCK_TIME_NONE;
1256 GST_DEBUG_OBJECT (demux, "duration: %" GST_TIME_FORMAT,
1257 GST_TIME_ARGS (demux->duration));
1259 /* store duration in the segment as well */
1260 demux->segment.duration = demux->duration;
1262 GST_OBJECT_LOCK (demux);
1263 demux->opened = TRUE;
1264 event = demux->seek_event;
1265 demux->seek_event = NULL;
1266 cached_events = demux->cached_events;
1267 demux->cached_events = NULL;
1268 GST_OBJECT_UNLOCK (demux);
1271 gst_ffmpegdemux_perform_seek (demux, event);
1272 gst_event_unref (event);
1274 GST_DEBUG_OBJECT (demux, "Sending segment %" GST_SEGMENT_FORMAT,
1276 gst_ffmpegdemux_push_event (demux, gst_event_new_segment (&demux->segment));
1279 while (cached_events) {
1280 event = cached_events->data;
1281 GST_INFO_OBJECT (demux, "pushing cached event: %" GST_PTR_FORMAT, event);
1282 gst_ffmpegdemux_push_event (demux, event);
1283 cached_events = g_list_delete_link (cached_events, cached_events);
1286 /* grab the global tags */
1287 tags = gst_ffmpeg_metadata_to_tag_list (demux->context->metadata);
1289 GST_INFO_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, tags);
1292 /* now handle the stream tags */
1293 for (i = 0; i < n_streams; i++) {
1294 GstFFStream *stream;
1296 stream = gst_ffmpegdemux_get_stream (demux, demux->context->streams[i]);
1297 if (stream->pad != NULL) {
1301 gst_pad_push_event (stream->pad,
1302 gst_event_new_tag (gst_tag_list_ref (tags)));
1304 /* Per-stream tags */
1305 if (stream->tags != NULL) {
1306 GST_INFO_OBJECT (stream->pad, "stream tags: %" GST_PTR_FORMAT,
1308 gst_pad_push_event (stream->pad,
1309 gst_event_new_tag (gst_tag_list_ref (stream->tags)));
1319 GST_ELEMENT_ERROR (demux, LIBRARY, FAILED, (NULL),
1320 ("%s", gst_ffmpegdemux_averror (res)));
1325 #define GST_FFMPEG_TYPE_FIND_SIZE 4096
1326 #define GST_FFMPEG_TYPE_FIND_MIN_SIZE 256
1329 gst_ffmpegdemux_type_find (GstTypeFind * tf, gpointer priv)
1332 AVInputFormat *in_plugin = (AVInputFormat *) priv;
1337 /* We want GST_FFMPEG_TYPE_FIND_SIZE bytes, but if the file is shorter than
1338 * that we'll give it a try... */
1339 length = gst_type_find_get_length (tf);
1340 if (length == 0 || length > GST_FFMPEG_TYPE_FIND_SIZE)
1341 length = GST_FFMPEG_TYPE_FIND_SIZE;
1343 /* The ffmpeg typefinders assume there's a certain minimum amount of data
1344 * and will happily do invalid memory access if there isn't, so let's just
1345 * skip the ffmpeg typefinders if the data available is too short
1346 * (in which case it's unlikely to be a media file anyway) */
1347 if (length < GST_FFMPEG_TYPE_FIND_MIN_SIZE) {
1348 GST_LOG ("not typefinding %" G_GUINT64_FORMAT " bytes, too short", length);
1352 GST_LOG ("typefinding %" G_GUINT64_FORMAT " bytes", length);
1353 if (in_plugin->read_probe &&
1354 (data = gst_type_find_peek (tf, 0, length)) != NULL) {
1355 AVProbeData probe_data;
1357 probe_data.filename = "";
1358 probe_data.buf = (guint8 *) data;
1359 probe_data.buf_size = length;
1361 res = in_plugin->read_probe (&probe_data);
1363 res = MAX (1, res * GST_TYPE_FIND_MAXIMUM / AVPROBE_SCORE_MAX);
1364 /* Restrict the probability for MPEG-TS streams, because there is
1365 * probably a better version in plugins-base, if the user has a recent
1366 * plugins-base (in fact we shouldn't even get here for ffmpeg mpegts or
1367 * mpegtsraw typefinders, since we blacklist them) */
1368 if (g_str_has_prefix (in_plugin->name, "mpegts"))
1369 res = MIN (res, GST_TYPE_FIND_POSSIBLE);
1371 sinkcaps = gst_ffmpeg_formatid_to_caps (in_plugin->name);
1373 GST_LOG ("libav typefinder '%s' suggests %" GST_PTR_FORMAT ", p=%u%%",
1374 in_plugin->name, sinkcaps, res);
1376 gst_type_find_suggest (tf, res, sinkcaps);
1377 gst_caps_unref (sinkcaps);
1384 gst_ffmpegdemux_loop (GstFFMpegDemux * demux)
1390 GstFFStream *stream;
1392 GstBuffer *outbuf = NULL;
1393 GstClockTime timestamp, duration;
1396 GstFlowReturn stream_last_flow;
1399 /* open file if we didn't so already */
1401 if (!gst_ffmpegdemux_open (demux))
1404 GST_DEBUG_OBJECT (demux, "about to read a frame");
1407 res = av_read_frame (demux->context, &pkt);
1411 /* get the stream */
1413 gst_ffmpegdemux_get_stream (demux,
1414 demux->context->streams[pkt.stream_index]);
1416 /* check if we know the stream */
1417 if (stream->unknown)
1420 /* get more stuff belonging to this stream */
1421 avstream = stream->avstream;
1423 /* do timestamps, we do this first so that we can know when we
1424 * stepped over the segment stop position. */
1426 if (G_UNLIKELY (pts < 0)) {
1427 /* some streams have pts such this:
1433 * we reset pts to 0 since for us timestamp are unsigned
1435 GST_WARNING_OBJECT (demux,
1436 "negative pts detected: %" G_GINT64_FORMAT " resetting to 0", pts);
1439 timestamp = gst_ffmpeg_time_ff_to_gst (pts, avstream->time_base);
1440 if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
1441 stream->last_ts = timestamp;
1443 duration = gst_ffmpeg_time_ff_to_gst (pkt.duration, avstream->time_base);
1444 if (G_UNLIKELY (!duration)) {
1445 GST_WARNING_OBJECT (demux, "invalid buffer duration, setting to NONE");
1446 duration = GST_CLOCK_TIME_NONE;
1450 GST_DEBUG_OBJECT (demux,
1451 "pkt pts:%" GST_TIME_FORMAT
1452 " / size:%d / stream_index:%d / flags:%d / duration:%" GST_TIME_FORMAT
1453 " / pos:%" G_GINT64_FORMAT, GST_TIME_ARGS (timestamp), pkt.size,
1454 pkt.stream_index, pkt.flags, GST_TIME_ARGS (duration), (gint64) pkt.pos);
1456 /* check start_time */
1458 if (demux->start_time != -1 && demux->start_time > timestamp)
1462 if (GST_CLOCK_TIME_IS_VALID (timestamp))
1463 timestamp -= demux->start_time;
1465 /* check if we ran outside of the segment */
1466 if (demux->segment.stop != -1 && timestamp > demux->segment.stop)
1469 /* prepare to push packet to peer */
1470 srcpad = stream->pad;
1472 rawvideo = (avstream->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1473 avstream->codec->codec_id == AV_CODEC_ID_RAWVIDEO);
1476 outsize = gst_ffmpeg_avpicture_get_size (avstream->codec->pix_fmt,
1477 avstream->codec->width, avstream->codec->height);
1481 outbuf = gst_buffer_new_and_alloc (outsize);
1483 /* copy the data from packet into the target buffer
1484 * and do conversions for raw video packets */
1487 const gchar *plugin_name =
1488 ((GstFFMpegDemuxClass *) (G_OBJECT_GET_CLASS (demux)))->in_plugin->name;
1491 GST_WARNING ("Unknown demuxer %s, no idea what to do", plugin_name);
1492 gst_ffmpeg_avpicture_fill (&src, pkt.data,
1493 avstream->codec->pix_fmt, avstream->codec->width,
1494 avstream->codec->height);
1496 gst_buffer_map (outbuf, &map, GST_MAP_WRITE);
1497 gst_ffmpeg_avpicture_fill (&dst, map.data,
1498 avstream->codec->pix_fmt, avstream->codec->width,
1499 avstream->codec->height);
1501 av_picture_copy (&dst, &src, avstream->codec->pix_fmt,
1502 avstream->codec->width, avstream->codec->height);
1503 gst_buffer_unmap (outbuf, &map);
1505 gst_buffer_fill (outbuf, 0, pkt.data, outsize);
1508 GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
1509 GST_BUFFER_DURATION (outbuf) = duration;
1511 /* mark keyframes */
1512 if (!(pkt.flags & AV_PKT_FLAG_KEY)) {
1513 GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
1517 if (stream->discont) {
1518 GST_DEBUG_OBJECT (demux, "marking DISCONT");
1519 GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
1520 stream->discont = FALSE;
1523 GST_DEBUG_OBJECT (demux,
1524 "Sending out buffer time:%" GST_TIME_FORMAT " size:%" G_GSIZE_FORMAT,
1525 GST_TIME_ARGS (timestamp), gst_buffer_get_size (outbuf));
1527 ret = stream_last_flow = gst_pad_push (srcpad, outbuf);
1529 /* if a pad is in e.g. WRONG_STATE, we want to pause to unlock the STREAM_LOCK */
1530 if (((ret = gst_flow_combiner_update_flow (demux->flowcombiner,
1531 ret)) != GST_FLOW_OK)) {
1532 GST_WARNING_OBJECT (demux, "stream_movi flow: %s / %s",
1533 gst_flow_get_name (stream_last_flow), gst_flow_get_name (ret));
1538 /* can destroy the packet now */
1539 av_packet_unref (&pkt);
1546 GST_LOG_OBJECT (demux, "pausing task, reason %d (%s)", ret,
1547 gst_flow_get_name (ret));
1548 if (demux->seekable)
1549 gst_pad_pause_task (demux->sinkpad);
1551 GstFFMpegPipe *ffpipe = &demux->ffpipe;
1553 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1554 /* pause task and make sure loop stops */
1555 gst_task_pause (demux->task);
1556 g_rec_mutex_lock (&demux->task_lock);
1557 g_rec_mutex_unlock (&demux->task_lock);
1558 demux->ffpipe.srcresult = ret;
1559 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1562 if (ret == GST_FLOW_EOS) {
1563 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1566 if ((stop = demux->segment.stop) == -1)
1567 stop = demux->segment.duration;
1569 GST_LOG_OBJECT (demux, "posting segment done");
1570 gst_element_post_message (GST_ELEMENT (demux),
1571 gst_message_new_segment_done (GST_OBJECT (demux),
1572 demux->segment.format, stop));
1573 gst_ffmpegdemux_push_event (demux,
1574 gst_event_new_segment_done (demux->segment.format, stop));
1576 GST_LOG_OBJECT (demux, "pushing eos");
1577 gst_ffmpegdemux_push_event (demux, gst_event_new_eos ());
1579 } else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS) {
1580 GST_ELEMENT_FLOW_ERROR (demux, ret);
1581 gst_ffmpegdemux_push_event (demux, gst_event_new_eos ());
1587 ret = GST_FLOW_ERROR;
1592 /* something went wrong... */
1593 GST_WARNING_OBJECT (demux, "av_read_frame returned %d", res);
1595 GST_OBJECT_LOCK (demux);
1596 /* pause appropriatly based on if we are flushing or not */
1597 if (demux->flushing)
1598 ret = GST_FLOW_FLUSHING;
1599 else if (gst_ffmpegdemux_has_outputted (demux)
1600 || gst_ffmpegdemux_is_eos (demux)) {
1601 GST_DEBUG_OBJECT (demux, "We are EOS");
1604 ret = GST_FLOW_ERROR;
1605 GST_OBJECT_UNLOCK (demux);
1611 GST_DEBUG_OBJECT (demux, "dropping buffer out of segment, stream eos");
1613 if (gst_ffmpegdemux_is_eos (demux)) {
1614 av_packet_unref (&pkt);
1615 GST_DEBUG_OBJECT (demux, "we are eos");
1619 GST_DEBUG_OBJECT (demux, "some streams are not yet eos");
1627 gst_ffmpegdemux_sink_event (GstPad * sinkpad, GstObject * parent,
1630 GstFFMpegDemux *demux;
1631 GstFFMpegPipe *ffpipe;
1632 gboolean result = TRUE;
1634 demux = (GstFFMpegDemux *) parent;
1635 ffpipe = &(demux->ffpipe);
1637 GST_LOG_OBJECT (demux, "event: %" GST_PTR_FORMAT, event);
1639 switch (GST_EVENT_TYPE (event)) {
1640 case GST_EVENT_FLUSH_START:
1642 gst_pad_event_default (sinkpad, parent, event);
1644 /* now unblock the chain function */
1645 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1646 ffpipe->srcresult = GST_FLOW_FLUSHING;
1647 GST_FFMPEG_PIPE_SIGNAL (ffpipe);
1648 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1650 /* loop might run into WRONG_STATE and end itself,
1651 * but may also be waiting in a ffmpeg read
1652 * trying to break that would make ffmpeg believe eos,
1653 * so no harm to have the loop 'pausing' there ... */
1655 case GST_EVENT_FLUSH_STOP:
1657 gst_pad_event_default (sinkpad, parent, event);
1659 GST_OBJECT_LOCK (demux);
1660 g_list_foreach (demux->cached_events, (GFunc) gst_mini_object_unref,
1662 g_list_free (demux->cached_events);
1663 GST_OBJECT_UNLOCK (demux);
1664 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1665 gst_adapter_clear (ffpipe->adapter);
1666 ffpipe->srcresult = GST_FLOW_OK;
1667 /* loop may have decided to end itself as a result of flush WRONG_STATE */
1668 gst_task_start (demux->task);
1669 demux->flushing = FALSE;
1670 GST_LOG_OBJECT (demux, "loop started");
1671 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1674 /* inform the src task that it can stop now */
1675 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1677 GST_FFMPEG_PIPE_SIGNAL (ffpipe);
1678 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1680 /* eat this event for now, task will send eos when finished */
1681 gst_event_unref (event);
1683 case GST_EVENT_STREAM_START:
1684 case GST_EVENT_CAPS:
1685 GST_LOG_OBJECT (demux, "dropping %s event", GST_EVENT_TYPE_NAME (event));
1686 gst_event_unref (event);
1689 /* for a serialized event, wait until an earlier data is gone,
1690 * though this is no guarantee as to when task is done with it.
1692 * If the demuxer isn't opened, push straight away, since we'll
1693 * be waiting against a cond that will never be signalled. */
1694 if (GST_EVENT_IS_SERIALIZED (event)) {
1695 if (demux->opened) {
1696 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1697 while (!ffpipe->needed)
1698 GST_FFMPEG_PIPE_WAIT (ffpipe);
1699 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1701 /* queue events and send them later (esp. tag events) */
1702 GST_OBJECT_LOCK (demux);
1703 demux->cached_events = g_list_append (demux->cached_events, event);
1704 GST_OBJECT_UNLOCK (demux);
1711 result = gst_pad_event_default (sinkpad, parent, event);
1718 static GstFlowReturn
1719 gst_ffmpegdemux_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * buffer)
1721 GstFFMpegDemux *demux;
1722 GstFFMpegPipe *ffpipe;
1724 demux = (GstFFMpegDemux *) parent;
1725 ffpipe = &demux->ffpipe;
1727 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1729 if (G_UNLIKELY (ffpipe->eos))
1732 if (G_UNLIKELY (ffpipe->srcresult != GST_FLOW_OK))
1735 GST_DEBUG ("Giving a buffer of %" G_GSIZE_FORMAT " bytes",
1736 gst_buffer_get_size (buffer));
1737 gst_adapter_push (ffpipe->adapter, buffer);
1739 while (gst_adapter_available (ffpipe->adapter) >= ffpipe->needed) {
1740 GST_DEBUG ("Adapter has more that requested (ffpipe->needed:%d)",
1742 GST_FFMPEG_PIPE_SIGNAL (ffpipe);
1743 GST_FFMPEG_PIPE_WAIT (ffpipe);
1744 /* may have become flushing */
1745 if (G_UNLIKELY (ffpipe->srcresult != GST_FLOW_OK))
1749 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1756 GST_DEBUG_OBJECT (demux, "ignoring buffer at end-of-stream");
1757 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1759 gst_buffer_unref (buffer);
1760 return GST_FLOW_EOS;
1764 GST_DEBUG_OBJECT (demux, "ignoring buffer because src task encountered %s",
1765 gst_flow_get_name (ffpipe->srcresult));
1766 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1769 gst_buffer_unref (buffer);
1770 return GST_FLOW_FLUSHING;
1775 gst_ffmpegdemux_sink_activate (GstPad * sinkpad, GstObject * parent)
1779 GstSchedulingFlags flags;
1781 query = gst_query_new_scheduling ();
1783 if (!gst_pad_peer_query (sinkpad, query)) {
1784 gst_query_unref (query);
1788 pull_mode = gst_query_has_scheduling_mode_with_flags (query,
1789 GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
1791 gst_query_parse_scheduling (query, &flags, NULL, NULL, NULL);
1792 if (flags & GST_SCHEDULING_FLAG_SEQUENTIAL)
1795 gst_query_unref (query);
1800 GST_DEBUG_OBJECT (sinkpad, "activating pull");
1801 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
1805 GST_DEBUG_OBJECT (sinkpad, "activating push");
1806 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
1812 * - use gstpipe protocol, like ffmpeg's pipe protocol
1813 * - (independently managed) task driving ffmpeg
1816 gst_ffmpegdemux_sink_activate_push (GstPad * sinkpad, GstObject * parent,
1819 GstFFMpegDemux *demux;
1820 gboolean res = FALSE;
1822 demux = (GstFFMpegDemux *) (parent);
1825 if (demux->can_push == FALSE) {
1826 GST_WARNING_OBJECT (demux, "Demuxer can't reliably operate in push-mode");
1829 demux->ffpipe.eos = FALSE;
1830 demux->ffpipe.srcresult = GST_FLOW_OK;
1831 demux->ffpipe.needed = 0;
1832 demux->seekable = FALSE;
1833 res = gst_task_start (demux->task);
1835 GstFFMpegPipe *ffpipe = &demux->ffpipe;
1837 /* release chain and loop */
1838 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1839 demux->ffpipe.srcresult = GST_FLOW_FLUSHING;
1840 /* end streaming by making ffmpeg believe eos */
1841 demux->ffpipe.eos = TRUE;
1842 GST_FFMPEG_PIPE_SIGNAL (ffpipe);
1843 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1845 /* make sure streaming ends */
1846 gst_task_stop (demux->task);
1847 g_rec_mutex_lock (&demux->task_lock);
1848 g_rec_mutex_unlock (&demux->task_lock);
1849 res = gst_task_join (demux->task);
1850 demux->seekable = FALSE;
1859 * - use gstreamer protocol, like ffmpeg's file protocol
1860 * - task driving ffmpeg based on sink pad
1863 gst_ffmpegdemux_sink_activate_pull (GstPad * sinkpad, GstObject * parent,
1866 GstFFMpegDemux *demux;
1869 demux = (GstFFMpegDemux *) parent;
1872 demux->seekable = TRUE;
1873 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_ffmpegdemux_loop,
1876 res = gst_pad_stop_task (sinkpad);
1877 demux->seekable = FALSE;
1884 gst_ffmpegdemux_sink_activate_mode (GstPad * sinkpad, GstObject * parent,
1885 GstPadMode mode, gboolean active)
1890 case GST_PAD_MODE_PUSH:
1891 res = gst_ffmpegdemux_sink_activate_push (sinkpad, parent, active);
1893 case GST_PAD_MODE_PULL:
1894 res = gst_ffmpegdemux_sink_activate_pull (sinkpad, parent, active);
1903 static GstStateChangeReturn
1904 gst_ffmpegdemux_change_state (GstElement * element, GstStateChange transition)
1906 GstFFMpegDemux *demux = (GstFFMpegDemux *) (element);
1907 GstStateChangeReturn ret;
1909 switch (transition) {
1910 case GST_STATE_CHANGE_READY_TO_PAUSED:
1912 /* test seek in READY here */
1913 gst_element_send_event (element, gst_event_new_seek (1.0,
1914 GST_FORMAT_TIME, GST_SEEK_FLAG_NONE,
1915 GST_SEEK_TYPE_SET, 10 * GST_SECOND,
1916 GST_SEEK_TYPE_SET, 13 * GST_SECOND));
1923 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1925 switch (transition) {
1926 case GST_STATE_CHANGE_PAUSED_TO_READY:
1927 gst_ffmpegdemux_close (demux);
1928 gst_adapter_clear (demux->ffpipe.adapter);
1929 g_list_foreach (demux->cached_events, (GFunc) gst_mini_object_unref,
1931 g_list_free (demux->cached_events);
1932 demux->cached_events = NULL;
1933 demux->have_group_id = FALSE;
1934 demux->group_id = G_MAXUINT;
1944 gst_ffmpegdemux_register (GstPlugin * plugin)
1947 AVInputFormat *in_plugin;
1949 GTypeInfo typeinfo = {
1950 sizeof (GstFFMpegDemuxClass),
1951 (GBaseInitFunc) gst_ffmpegdemux_base_init,
1953 (GClassInitFunc) gst_ffmpegdemux_class_init,
1956 sizeof (GstFFMpegDemux),
1958 (GInstanceInitFunc) gst_ffmpegdemux_init,
1961 in_plugin = av_iformat_next (NULL);
1963 GST_LOG ("Registering demuxers");
1966 gchar *type_name, *typefind_name;
1968 gboolean register_typefind_func = TRUE;
1970 GST_LOG ("Attempting to handle libav demuxer plugin %s [%s]",
1971 in_plugin->name, in_plugin->long_name);
1974 if (!strncmp (in_plugin->long_name, "raw ", 4) ||
1975 !strncmp (in_plugin->long_name, "pcm ", 4) ||
1976 !strcmp (in_plugin->name, "audio_device") ||
1977 !strncmp (in_plugin->name, "image", 5) ||
1978 !strcmp (in_plugin->name, "mpegvideo") ||
1979 !strcmp (in_plugin->name, "mjpeg") ||
1980 !strcmp (in_plugin->name, "redir") ||
1981 !strncmp (in_plugin->name, "u8", 2) ||
1982 !strncmp (in_plugin->name, "u16", 3) ||
1983 !strncmp (in_plugin->name, "u24", 3) ||
1984 !strncmp (in_plugin->name, "u32", 3) ||
1985 !strncmp (in_plugin->name, "s8", 2) ||
1986 !strncmp (in_plugin->name, "s16", 3) ||
1987 !strncmp (in_plugin->name, "s24", 3) ||
1988 !strncmp (in_plugin->name, "s32", 3) ||
1989 !strncmp (in_plugin->name, "f32", 3) ||
1990 !strncmp (in_plugin->name, "f64", 3) ||
1991 !strcmp (in_plugin->name, "mulaw") || !strcmp (in_plugin->name, "alaw")
1995 /* no network demuxers */
1996 if (!strcmp (in_plugin->name, "sdp") ||
1997 !strcmp (in_plugin->name, "rtsp") ||
1998 !strcmp (in_plugin->name, "applehttp")
2002 /* these don't do what one would expect or
2003 * are only partially functional/useful */
2004 if (!strcmp (in_plugin->name, "aac") ||
2005 !strcmp (in_plugin->name, "wv") ||
2006 !strcmp (in_plugin->name, "ass") ||
2007 !strcmp (in_plugin->name, "ffmetadata"))
2010 /* Don't use the typefind functions of formats for which we already have
2011 * better typefind functions */
2012 if (!strcmp (in_plugin->name, "mov,mp4,m4a,3gp,3g2,mj2") ||
2013 !strcmp (in_plugin->name, "ass") ||
2014 !strcmp (in_plugin->name, "avi") ||
2015 !strcmp (in_plugin->name, "asf") ||
2016 !strcmp (in_plugin->name, "mpegvideo") ||
2017 !strcmp (in_plugin->name, "mp3") ||
2018 !strcmp (in_plugin->name, "matroska") ||
2019 !strcmp (in_plugin->name, "matroska_webm") ||
2020 !strcmp (in_plugin->name, "matroska,webm") ||
2021 !strcmp (in_plugin->name, "mpeg") ||
2022 !strcmp (in_plugin->name, "wav") ||
2023 !strcmp (in_plugin->name, "au") ||
2024 !strcmp (in_plugin->name, "tta") ||
2025 !strcmp (in_plugin->name, "rm") ||
2026 !strcmp (in_plugin->name, "amr") ||
2027 !strcmp (in_plugin->name, "ogg") ||
2028 !strcmp (in_plugin->name, "aiff") ||
2029 !strcmp (in_plugin->name, "ape") ||
2030 !strcmp (in_plugin->name, "dv") ||
2031 !strcmp (in_plugin->name, "flv") ||
2032 !strcmp (in_plugin->name, "mpc") ||
2033 !strcmp (in_plugin->name, "mpc8") ||
2034 !strcmp (in_plugin->name, "mpegts") ||
2035 !strcmp (in_plugin->name, "mpegtsraw") ||
2036 !strcmp (in_plugin->name, "mxf") ||
2037 !strcmp (in_plugin->name, "nuv") ||
2038 !strcmp (in_plugin->name, "swf") ||
2039 !strcmp (in_plugin->name, "voc") ||
2040 !strcmp (in_plugin->name, "pva") ||
2041 !strcmp (in_plugin->name, "gif") ||
2042 !strcmp (in_plugin->name, "vc1test") ||
2043 !strcmp (in_plugin->name, "ivf"))
2044 register_typefind_func = FALSE;
2046 /* Set the rank of demuxers known to work to MARGINAL.
2047 * Set demuxers for which we already have another implementation to NONE
2048 * Set All others to NONE*/
2049 if (!strcmp (in_plugin->name, "wsvqa") ||
2050 !strcmp (in_plugin->name, "wsaud") ||
2051 !strcmp (in_plugin->name, "wc3movie") ||
2052 !strcmp (in_plugin->name, "voc") ||
2053 !strcmp (in_plugin->name, "tta") ||
2054 !strcmp (in_plugin->name, "sol") ||
2055 !strcmp (in_plugin->name, "smk") ||
2056 !strcmp (in_plugin->name, "vmd") ||
2057 !strcmp (in_plugin->name, "film_cpk") ||
2058 !strcmp (in_plugin->name, "ingenient") ||
2059 !strcmp (in_plugin->name, "psxstr") ||
2060 !strcmp (in_plugin->name, "nuv") ||
2061 !strcmp (in_plugin->name, "nut") ||
2062 !strcmp (in_plugin->name, "nsv") ||
2063 !strcmp (in_plugin->name, "mxf") ||
2064 !strcmp (in_plugin->name, "mmf") ||
2065 !strcmp (in_plugin->name, "mm") ||
2066 !strcmp (in_plugin->name, "ipmovie") ||
2067 !strcmp (in_plugin->name, "ape") ||
2068 !strcmp (in_plugin->name, "RoQ") ||
2069 !strcmp (in_plugin->name, "idcin") ||
2070 !strcmp (in_plugin->name, "gxf") ||
2071 !strcmp (in_plugin->name, "ffm") ||
2072 !strcmp (in_plugin->name, "ea") ||
2073 !strcmp (in_plugin->name, "daud") ||
2074 !strcmp (in_plugin->name, "avs") ||
2075 !strcmp (in_plugin->name, "aiff") ||
2076 !strcmp (in_plugin->name, "4xm") ||
2077 !strcmp (in_plugin->name, "yuv4mpegpipe") ||
2078 !strcmp (in_plugin->name, "pva") ||
2079 !strcmp (in_plugin->name, "mpc") ||
2080 !strcmp (in_plugin->name, "mpc8") ||
2081 !strcmp (in_plugin->name, "ivf") ||
2082 !strcmp (in_plugin->name, "brstm") ||
2083 !strcmp (in_plugin->name, "bfstm") || !strcmp (in_plugin->name, "gif"))
2084 rank = GST_RANK_MARGINAL;
2086 GST_DEBUG ("ignoring %s", in_plugin->name);
2087 rank = GST_RANK_NONE;
2091 /* construct the type */
2092 type_name = g_strdup_printf ("avdemux_%s", in_plugin->name);
2093 g_strdelimit (type_name, ".,|-<> ", '_');
2095 /* if it's already registered, drop it */
2096 if (g_type_from_name (type_name)) {
2101 typefind_name = g_strdup_printf ("avtype_%s", in_plugin->name);
2102 g_strdelimit (typefind_name, ".,|-<> ", '_');
2104 /* create the type now */
2105 type = g_type_register_static (GST_TYPE_ELEMENT, type_name, &typeinfo, 0);
2106 g_type_set_qdata (type, GST_FFDEMUX_PARAMS_QDATA, (gpointer) in_plugin);
2108 if (in_plugin->extensions)
2109 extensions = g_strdelimit (g_strdup (in_plugin->extensions), " ", ',');
2113 if (!gst_element_register (plugin, type_name, rank, type) ||
2114 (register_typefind_func == TRUE &&
2115 !gst_type_find_register (plugin, typefind_name, rank,
2116 gst_ffmpegdemux_type_find, extensions, NULL, in_plugin,
2118 g_warning ("Registration of type %s failed", type_name);
2120 g_free (typefind_name);
2121 g_free (extensions);
2126 g_free (typefind_name);
2127 g_free (extensions);
2130 in_plugin = av_iformat_next (in_plugin);
2133 GST_LOG ("Finished registering demuxers");