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);
133 gst_ffmpegdemux_src_convert (GstPad * pad,
135 gint64 src_value, GstFormat * dest_fmt, gint64 * dest_value);
138 gst_ffmpegdemux_send_event (GstElement * element, GstEvent * event);
139 static GstStateChangeReturn
140 gst_ffmpegdemux_change_state (GstElement * element, GstStateChange transition);
142 #define GST_FFDEMUX_PARAMS_QDATA g_quark_from_static_string("avdemux-params")
144 static GstElementClass *parent_class = NULL;
147 gst_ffmpegdemux_averror (gint av_errno)
149 const gchar *message = NULL;
152 case AVERROR (EINVAL):
153 message = "Unknown error";
156 message = "Input/output error";
159 message = "Number syntax expected in filename";
161 case AVERROR (ENOMEM):
162 message = "Not enough memory";
164 case AVERROR (EILSEQ):
165 message = "Unknown format";
167 case AVERROR (ENOSYS):
168 message = "Operation not supported";
171 message = "Unhandled error code received";
179 gst_ffmpegdemux_base_init (GstFFMpegDemuxClass * klass)
181 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
182 AVInputFormat *in_plugin;
185 GstPadTemplate *sinktempl, *audiosrctempl, *videosrctempl;
186 gchar *longname, *description;
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 p = name = g_strdup (in_plugin->name);
194 if (*p == '.' || *p == ',')
199 /* construct the element details struct */
200 longname = g_strdup_printf ("libav %s demuxer", in_plugin->long_name);
201 description = g_strdup_printf ("libav %s demuxer", in_plugin->long_name);
202 gst_element_class_set_metadata (element_class, longname,
203 "Codec/Demuxer", description,
204 "Wim Taymans <wim@fluendo.com>, "
205 "Ronald Bultje <rbultje@ronald.bitfreak.net>, "
206 "Edward Hervey <bilboed@bilboed.com>");
208 g_free (description);
211 sinkcaps = gst_ffmpeg_formatid_to_caps (name);
212 sinktempl = gst_pad_template_new ("sink",
213 GST_PAD_SINK, GST_PAD_ALWAYS, sinkcaps);
214 videosrctempl = gst_pad_template_new ("video_%u",
215 GST_PAD_SRC, GST_PAD_SOMETIMES, GST_CAPS_ANY);
216 audiosrctempl = gst_pad_template_new ("audio_%u",
217 GST_PAD_SRC, GST_PAD_SOMETIMES, GST_CAPS_ANY);
219 gst_element_class_add_pad_template (element_class, videosrctempl);
220 gst_element_class_add_pad_template (element_class, audiosrctempl);
221 gst_element_class_add_pad_template (element_class, sinktempl);
223 klass->in_plugin = in_plugin;
224 klass->videosrctempl = videosrctempl;
225 klass->audiosrctempl = audiosrctempl;
226 klass->sinktempl = sinktempl;
230 gst_ffmpegdemux_class_init (GstFFMpegDemuxClass * klass)
232 GObjectClass *gobject_class;
233 GstElementClass *gstelement_class;
235 gobject_class = (GObjectClass *) klass;
236 gstelement_class = (GstElementClass *) klass;
238 parent_class = g_type_class_peek_parent (klass);
240 gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_ffmpegdemux_finalize);
242 gstelement_class->change_state = gst_ffmpegdemux_change_state;
243 gstelement_class->send_event = gst_ffmpegdemux_send_event;
247 gst_ffmpegdemux_init (GstFFMpegDemux * demux)
249 GstFFMpegDemuxClass *oclass =
250 (GstFFMpegDemuxClass *) (G_OBJECT_GET_CLASS (demux));
253 demux->sinkpad = gst_pad_new_from_template (oclass->sinktempl, "sink");
254 gst_pad_set_activate_function (demux->sinkpad,
255 GST_DEBUG_FUNCPTR (gst_ffmpegdemux_sink_activate));
256 gst_pad_set_activatemode_function (demux->sinkpad,
257 GST_DEBUG_FUNCPTR (gst_ffmpegdemux_sink_activate_mode));
258 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
260 /* push based setup */
261 /* the following are not used in pull-based mode, so safe to set anyway */
262 gst_pad_set_event_function (demux->sinkpad,
263 GST_DEBUG_FUNCPTR (gst_ffmpegdemux_sink_event));
264 gst_pad_set_chain_function (demux->sinkpad,
265 GST_DEBUG_FUNCPTR (gst_ffmpegdemux_chain));
266 /* task for driving ffmpeg in loop function */
268 gst_task_new ((GstTaskFunction) gst_ffmpegdemux_loop, demux, NULL);
269 g_rec_mutex_init (&demux->task_lock);
270 gst_task_set_lock (demux->task, &demux->task_lock);
272 demux->have_group_id = FALSE;
273 demux->group_id = G_MAXUINT;
275 demux->opened = FALSE;
276 demux->context = NULL;
278 for (n = 0; n < MAX_STREAMS; n++) {
279 demux->streams[n] = NULL;
281 demux->videopads = 0;
282 demux->audiopads = 0;
284 demux->seek_event = NULL;
285 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
287 demux->flowcombiner = gst_flow_combiner_new ();
289 /* push based data */
290 g_mutex_init (&demux->ffpipe.tlock);
291 g_cond_init (&demux->ffpipe.cond);
292 demux->ffpipe.adapter = gst_adapter_new ();
294 /* blacklist unreliable push-based demuxers */
295 if (strcmp (oclass->in_plugin->name, "ape"))
296 demux->can_push = TRUE;
298 demux->can_push = FALSE;
302 gst_ffmpegdemux_finalize (GObject * object)
304 GstFFMpegDemux *demux;
306 demux = (GstFFMpegDemux *) object;
308 gst_flow_combiner_free (demux->flowcombiner);
310 g_mutex_clear (&demux->ffpipe.tlock);
311 g_cond_clear (&demux->ffpipe.cond);
312 gst_object_unref (demux->ffpipe.adapter);
314 gst_object_unref (demux->task);
315 g_rec_mutex_clear (&demux->task_lock);
317 G_OBJECT_CLASS (parent_class)->finalize (object);
321 gst_ffmpegdemux_close (GstFFMpegDemux * demux)
329 /* remove pads from ourselves */
330 for (n = 0; n < MAX_STREAMS; n++) {
333 stream = demux->streams[n];
336 gst_flow_combiner_remove_pad (demux->flowcombiner, stream->pad);
337 gst_element_remove_pad (GST_ELEMENT (demux), stream->pad);
340 gst_tag_list_unref (stream->tags);
343 demux->streams[n] = NULL;
345 demux->videopads = 0;
346 demux->audiopads = 0;
348 /* close demuxer context from ffmpeg */
350 gst_ffmpegdata_close (demux->context->pb);
352 gst_ffmpeg_pipe_close (demux->context->pb);
353 demux->context->pb = NULL;
354 avformat_close_input (&demux->context);
356 avformat_free_context (demux->context);
357 demux->context = NULL;
359 GST_OBJECT_LOCK (demux);
360 demux->opened = FALSE;
361 event_p = &demux->seek_event;
362 gst_event_replace (event_p, NULL);
363 GST_OBJECT_UNLOCK (demux);
365 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
368 /* send an event to all the source pads .
369 * Takes ownership of the event.
371 * Returns FALSE if none of the source pads handled the event.
374 gst_ffmpegdemux_push_event (GstFFMpegDemux * demux, GstEvent * event)
381 for (n = 0; n < MAX_STREAMS; n++) {
382 GstFFStream *s = demux->streams[n];
385 gst_event_ref (event);
386 res &= gst_pad_push_event (s->pad, event);
389 gst_event_unref (event);
394 /* set flags on all streams */
396 gst_ffmpegdemux_set_flags (GstFFMpegDemux * demux, gboolean discont,
402 for (n = 0; n < MAX_STREAMS; n++) {
403 if ((s = demux->streams[n])) {
404 s->discont = discont;
410 /* check if all streams are eos */
412 gst_ffmpegdemux_is_eos (GstFFMpegDemux * demux)
417 for (n = 0; n < MAX_STREAMS; n++) {
418 if ((s = demux->streams[n])) {
419 GST_DEBUG ("stream %d %p eos:%d", n, s, s->eos);
427 /* Returns True if we at least outputted one buffer */
429 gst_ffmpegdemux_has_outputted (GstFFMpegDemux * demux)
434 for (n = 0; n < MAX_STREAMS; n++) {
435 if ((s = demux->streams[n])) {
436 if (GST_CLOCK_TIME_IS_VALID (s->last_ts))
444 gst_ffmpegdemux_do_seek (GstFFMpegDemux * demux, GstSegment * segment)
453 /* find default index and fail if none is present */
454 index = av_find_default_stream_index (demux->context);
455 GST_LOG_OBJECT (demux, "default stream index %d", index);
461 /* get the stream for seeking */
462 stream = demux->context->streams[index];
463 /* initial seek position */
464 target = segment->position;
465 /* convert target to ffmpeg time */
466 fftarget = gst_ffmpeg_time_gst_to_ff (target, stream->time_base);
468 GST_LOG_OBJECT (demux, "do seek to time %" GST_TIME_FORMAT,
469 GST_TIME_ARGS (target));
471 /* if we need to land on a keyframe, try to do so, we don't try to do a
472 * keyframe seek if we are not absolutely sure we have an index.*/
473 if (segment->flags & GST_SEEK_FLAG_KEY_UNIT) {
476 GST_LOG_OBJECT (demux, "looking for keyframe in ffmpeg for time %"
477 GST_TIME_FORMAT, GST_TIME_ARGS (target));
479 /* search in the index for the previous keyframe */
481 av_index_search_timestamp (stream, fftarget, AVSEEK_FLAG_BACKWARD);
483 GST_LOG_OBJECT (demux, "keyframeidx: %d", keyframeidx);
485 if (keyframeidx >= 0) {
486 fftarget = stream->index_entries[keyframeidx].timestamp;
487 target = gst_ffmpeg_time_ff_to_gst (fftarget, stream->time_base);
489 GST_LOG_OBJECT (demux,
490 "Found a keyframe at ffmpeg idx: %d timestamp :%" GST_TIME_FORMAT,
491 keyframeidx, GST_TIME_ARGS (target));
495 GST_DEBUG_OBJECT (demux,
496 "About to call av_seek_frame (context, %d, %" G_GINT64_FORMAT
497 ", 0) for time %" GST_TIME_FORMAT, index, fftarget,
498 GST_TIME_ARGS (target));
501 av_seek_frame (demux->context, index, fftarget,
502 AVSEEK_FLAG_BACKWARD)) < 0)
505 GST_DEBUG_OBJECT (demux, "seek success, returned %d", seekret);
507 segment->position = target;
508 segment->time = target;
509 segment->start = target;
516 GST_WARNING_OBJECT (demux, "Call to av_seek_frame failed : %d", seekret);
522 gst_ffmpegdemux_perform_seek (GstFFMpegDemux * demux, GstEvent * event)
528 GstSeekType cur_type, stop_type;
532 GstSegment seeksegment;
534 if (!demux->seekable) {
535 GST_DEBUG_OBJECT (demux, "in push mode; ignoring seek");
539 GST_DEBUG_OBJECT (demux, "starting seek");
542 gst_event_parse_seek (event, &rate, &format, &flags,
543 &cur_type, &cur, &stop_type, &stop);
545 /* we have to have a format as the segment format. Try to convert
547 if (demux->segment.format != format) {
550 fmt = demux->segment.format;
552 /* FIXME, use source pad */
553 if (cur_type != GST_SEEK_TYPE_NONE && cur != -1)
554 res = gst_pad_query_convert (demux->sinkpad, format, cur, fmt, &cur);
555 if (res && stop_type != GST_SEEK_TYPE_NONE && stop != -1)
556 res = gst_pad_query_convert (demux->sinkpad, format, stop, fmt, &stop);
566 flush = flags & GST_SEEK_FLAG_FLUSH;
568 /* send flush start */
570 /* mark flushing so that the streaming thread can react on it */
571 GST_OBJECT_LOCK (demux);
572 demux->flushing = TRUE;
573 GST_OBJECT_UNLOCK (demux);
574 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
575 gst_ffmpegdemux_push_event (demux, gst_event_new_flush_start ());
577 gst_pad_pause_task (demux->sinkpad);
580 /* grab streaming lock, this should eventually be possible, either
581 * because the task is paused or our streaming thread stopped
582 * because our peer is flushing. */
583 GST_PAD_STREAM_LOCK (demux->sinkpad);
585 /* make copy into temp structure, we can only update the main one
586 * when we actually could do the seek. */
587 memcpy (&seeksegment, &demux->segment, sizeof (GstSegment));
589 /* now configure the seek segment */
591 gst_segment_do_seek (&seeksegment, rate, format, flags,
592 cur_type, cur, stop_type, stop, &update);
595 GST_DEBUG_OBJECT (demux, "segment configured from %" G_GINT64_FORMAT
596 " to %" G_GINT64_FORMAT ", position %" G_GINT64_FORMAT,
597 seeksegment.start, seeksegment.stop, seeksegment.position);
599 /* make the sinkpad available for data passing since we might need
600 * it when doing the seek */
602 GST_OBJECT_LOCK (demux);
603 demux->flushing = FALSE;
604 GST_OBJECT_UNLOCK (demux);
605 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop (TRUE));
608 /* do the seek, segment.position contains new position. */
609 res = gst_ffmpegdemux_do_seek (demux, &seeksegment);
611 /* and prepare to continue streaming */
613 /* send flush stop, peer will accept data and events again. We
614 * are not yet providing data as we still have the STREAM_LOCK. */
615 gst_ffmpegdemux_push_event (demux, gst_event_new_flush_stop (TRUE));
617 /* if successfull seek, we update our real segment and push
618 * out the new segment. */
620 memcpy (&demux->segment, &seeksegment, sizeof (GstSegment));
622 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
623 gst_element_post_message (GST_ELEMENT (demux),
624 gst_message_new_segment_start (GST_OBJECT (demux),
625 demux->segment.format, demux->segment.position));
628 /* now send the newsegment, FIXME, do this from the streaming thread */
629 GST_DEBUG_OBJECT (demux, "Sending newsegment %" GST_SEGMENT_FORMAT,
632 gst_ffmpegdemux_push_event (demux, gst_event_new_segment (&demux->segment));
635 /* Mark discont on all srcpads and remove eos */
636 gst_ffmpegdemux_set_flags (demux, TRUE, FALSE);
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_tag_list_new_empty ();
1032 gst_tag_list_add (stream->tags, GST_TAG_MERGE_REPLACE,
1033 (ctx->codec_type == AVMEDIA_TYPE_VIDEO) ?
1034 GST_TAG_VIDEO_CODEC : GST_TAG_AUDIO_CODEC, codec, NULL);
1042 GST_DEBUG_OBJECT (demux, "Pad existed (stream %d)", avstream->index);
1043 return demux->streams[avstream->index];
1047 GST_WARNING_OBJECT (demux, "Unknown pad type %d", ctx->codec_type);
1052 GST_WARNING_OBJECT (demux, "Unknown caps for codec %d", ctx->codec_id);
1058 /* Re-enable once converted to new AVMetaData API
1062 my_safe_copy (gchar * input)
1066 if (!(g_utf8_validate (input, -1, NULL))) {
1067 output = g_convert (input, strlen (input),
1068 "UTF-8", "ISO-8859-1", NULL, NULL, NULL);
1070 output = g_strdup (input);
1077 gst_ffmpegdemux_read_tags (GstFFMpegDemux * demux)
1080 gboolean hastag = FALSE;
1082 tlist = gst_tag_list_new ();
1084 if (*demux->context->title) {
1085 gst_tag_list_add (tlist, GST_TAG_MERGE_REPLACE,
1086 GST_TAG_TITLE, my_safe_copy (demux->context->title), NULL);
1089 if (*demux->context->author) {
1090 gst_tag_list_add (tlist, GST_TAG_MERGE_REPLACE,
1091 GST_TAG_ARTIST, my_safe_copy (demux->context->author), NULL);
1094 if (*demux->context->copyright) {
1095 gst_tag_list_add (tlist, GST_TAG_MERGE_REPLACE,
1096 GST_TAG_COPYRIGHT, my_safe_copy (demux->context->copyright), NULL);
1099 if (*demux->context->comment) {
1100 gst_tag_list_add (tlist, GST_TAG_MERGE_REPLACE,
1101 GST_TAG_COMMENT, my_safe_copy (demux->context->comment), NULL);
1104 if (*demux->context->album) {
1105 gst_tag_list_add (tlist, GST_TAG_MERGE_REPLACE,
1106 GST_TAG_ALBUM, my_safe_copy (demux->context->album), NULL);
1109 if (demux->context->track) {
1110 gst_tag_list_add (tlist, GST_TAG_MERGE_REPLACE,
1111 GST_TAG_TRACK_NUMBER, demux->context->track, NULL);
1114 if (*demux->context->genre) {
1115 gst_tag_list_add (tlist, GST_TAG_MERGE_REPLACE,
1116 GST_TAG_GENRE, my_safe_copy (demux->context->genre), NULL);
1119 if (demux->context->year) {
1120 gst_tag_list_add (tlist, GST_TAG_MERGE_REPLACE,
1121 GST_TAG_DATE, g_date_new_dmy (1, 1, demux->context->year), NULL);
1126 gst_tag_list_unref (tlist);
1134 gst_ffmpegdemux_open (GstFFMpegDemux * demux)
1136 AVIOContext *iocontext = NULL;
1137 GstFFMpegDemuxClass *oclass =
1138 (GstFFMpegDemuxClass *) G_OBJECT_GET_CLASS (demux);
1139 gint res, n_streams, i;
1141 /* Re-enable once converted to new AVMetaData API
1147 GList *cached_events;
1150 gst_ffmpegdemux_close (demux);
1152 /* open via our input protocol hack */
1153 if (demux->seekable)
1154 res = gst_ffmpegdata_open (demux->sinkpad, AVIO_FLAG_READ, &iocontext);
1156 res = gst_ffmpeg_pipe_open (&demux->ffpipe, AVIO_FLAG_READ, &iocontext);
1161 demux->context = avformat_alloc_context ();
1162 demux->context->pb = iocontext;
1163 res = avformat_open_input (&demux->context, NULL, oclass->in_plugin, NULL);
1165 GST_DEBUG_OBJECT (demux, "av_open_input returned %d", res);
1169 res = gst_ffmpeg_av_find_stream_info (demux->context);
1170 GST_DEBUG_OBJECT (demux, "av_find_stream_info returned %d", res);
1174 n_streams = demux->context->nb_streams;
1175 GST_DEBUG_OBJECT (demux, "we have %d streams", n_streams);
1177 /* open_input_file() automatically reads the header. We can now map each
1178 * created AVStream to a GstPad to make GStreamer handle it. */
1179 for (i = 0; i < n_streams; i++) {
1180 gst_ffmpegdemux_get_stream (demux, demux->context->streams[i]);
1183 gst_element_no_more_pads (GST_ELEMENT (demux));
1185 /* transform some useful info to GstClockTime and remember */
1186 demux->start_time = gst_util_uint64_scale_int (demux->context->start_time,
1187 GST_SECOND, AV_TIME_BASE);
1188 GST_DEBUG_OBJECT (demux, "start time: %" GST_TIME_FORMAT,
1189 GST_TIME_ARGS (demux->start_time));
1190 if (demux->context->duration > 0)
1191 demux->duration = gst_util_uint64_scale_int (demux->context->duration,
1192 GST_SECOND, AV_TIME_BASE);
1194 demux->duration = GST_CLOCK_TIME_NONE;
1196 GST_DEBUG_OBJECT (demux, "duration: %" GST_TIME_FORMAT,
1197 GST_TIME_ARGS (demux->duration));
1199 /* store duration in the segment as well */
1200 demux->segment.duration = demux->duration;
1202 GST_OBJECT_LOCK (demux);
1203 demux->opened = TRUE;
1204 event = demux->seek_event;
1205 demux->seek_event = NULL;
1206 cached_events = demux->cached_events;
1207 demux->cached_events = NULL;
1208 GST_OBJECT_UNLOCK (demux);
1211 gst_ffmpegdemux_perform_seek (demux, event);
1212 gst_event_unref (event);
1214 GST_DEBUG_OBJECT (demux, "Sending segment %" GST_SEGMENT_FORMAT,
1216 gst_ffmpegdemux_push_event (demux, gst_event_new_segment (&demux->segment));
1219 while (cached_events) {
1220 event = cached_events->data;
1221 GST_INFO_OBJECT (demux, "pushing cached event: %" GST_PTR_FORMAT, event);
1222 gst_ffmpegdemux_push_event (demux, event);
1223 cached_events = g_list_delete_link (cached_events, cached_events);
1227 /* Re-enable once converted to new AVMetaData API
1230 /* grab the global tags */
1231 tags = gst_ffmpegdemux_read_tags (demux);
1233 GST_INFO_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, tags);
1234 gst_element_found_tags (GST_ELEMENT (demux), tags);
1238 /* now handle the stream tags */
1239 for (i = 0; i < n_streams; i++) {
1240 GstFFStream *stream;
1242 stream = gst_ffmpegdemux_get_stream (demux, demux->context->streams[i]);
1243 if (stream->tags != NULL && stream->pad != NULL) {
1244 GST_INFO_OBJECT (stream->pad, "stream tags: %" GST_PTR_FORMAT,
1246 gst_pad_push_event (stream->pad,
1247 gst_event_new_tag (gst_tag_list_ref (stream->tags)));
1256 GST_ELEMENT_ERROR (demux, LIBRARY, FAILED, (NULL),
1257 ("%s", gst_ffmpegdemux_averror (res)));
1262 #define GST_FFMPEG_TYPE_FIND_SIZE 4096
1263 #define GST_FFMPEG_TYPE_FIND_MIN_SIZE 256
1266 gst_ffmpegdemux_type_find (GstTypeFind * tf, gpointer priv)
1269 AVInputFormat *in_plugin = (AVInputFormat *) priv;
1274 /* We want GST_FFMPEG_TYPE_FIND_SIZE bytes, but if the file is shorter than
1275 * that we'll give it a try... */
1276 length = gst_type_find_get_length (tf);
1277 if (length == 0 || length > GST_FFMPEG_TYPE_FIND_SIZE)
1278 length = GST_FFMPEG_TYPE_FIND_SIZE;
1280 /* The ffmpeg typefinders assume there's a certain minimum amount of data
1281 * and will happily do invalid memory access if there isn't, so let's just
1282 * skip the ffmpeg typefinders if the data available is too short
1283 * (in which case it's unlikely to be a media file anyway) */
1284 if (length < GST_FFMPEG_TYPE_FIND_MIN_SIZE) {
1285 GST_LOG ("not typefinding %" G_GUINT64_FORMAT " bytes, too short", length);
1289 GST_LOG ("typefinding %" G_GUINT64_FORMAT " bytes", length);
1290 if (in_plugin->read_probe &&
1291 (data = gst_type_find_peek (tf, 0, length)) != NULL) {
1292 AVProbeData probe_data;
1294 probe_data.filename = "";
1295 probe_data.buf = (guint8 *) data;
1296 probe_data.buf_size = length;
1298 res = in_plugin->read_probe (&probe_data);
1300 res = MAX (1, res * GST_TYPE_FIND_MAXIMUM / AVPROBE_SCORE_MAX);
1301 /* Restrict the probability for MPEG-TS streams, because there is
1302 * probably a better version in plugins-base, if the user has a recent
1303 * plugins-base (in fact we shouldn't even get here for ffmpeg mpegts or
1304 * mpegtsraw typefinders, since we blacklist them) */
1305 if (g_str_has_prefix (in_plugin->name, "mpegts"))
1306 res = MIN (res, GST_TYPE_FIND_POSSIBLE);
1308 sinkcaps = gst_ffmpeg_formatid_to_caps (in_plugin->name);
1310 GST_LOG ("libav typefinder '%s' suggests %" GST_PTR_FORMAT ", p=%u%%",
1311 in_plugin->name, sinkcaps, res);
1313 gst_type_find_suggest (tf, res, sinkcaps);
1314 gst_caps_unref (sinkcaps);
1321 gst_ffmpegdemux_loop (GstFFMpegDemux * demux)
1327 GstFFStream *stream;
1329 GstBuffer *outbuf = NULL;
1330 GstClockTime timestamp, duration;
1333 GstFlowReturn stream_last_flow;
1335 /* open file if we didn't so already */
1337 if (!gst_ffmpegdemux_open (demux))
1340 GST_DEBUG_OBJECT (demux, "about to read a frame");
1343 res = av_read_frame (demux->context, &pkt);
1347 /* get the stream */
1349 gst_ffmpegdemux_get_stream (demux,
1350 demux->context->streams[pkt.stream_index]);
1352 /* check if we know the stream */
1353 if (stream->unknown)
1356 /* get more stuff belonging to this stream */
1357 avstream = stream->avstream;
1359 /* do timestamps, we do this first so that we can know when we
1360 * stepped over the segment stop position. */
1361 timestamp = gst_ffmpeg_time_ff_to_gst (pkt.pts, avstream->time_base);
1362 if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
1363 stream->last_ts = timestamp;
1365 duration = gst_ffmpeg_time_ff_to_gst (pkt.duration, avstream->time_base);
1366 if (G_UNLIKELY (!duration)) {
1367 GST_WARNING_OBJECT (demux, "invalid buffer duration, setting to NONE");
1368 duration = GST_CLOCK_TIME_NONE;
1372 GST_DEBUG_OBJECT (demux,
1373 "pkt pts:%" GST_TIME_FORMAT
1374 " / size:%d / stream_index:%d / flags:%d / duration:%" GST_TIME_FORMAT
1375 " / pos:%" G_GINT64_FORMAT, GST_TIME_ARGS (timestamp), pkt.size,
1376 pkt.stream_index, pkt.flags, GST_TIME_ARGS (duration), (gint64) pkt.pos);
1378 /* check start_time */
1380 if (demux->start_time != -1 && demux->start_time > timestamp)
1384 if (GST_CLOCK_TIME_IS_VALID (timestamp))
1385 timestamp -= demux->start_time;
1387 /* check if we ran outside of the segment */
1388 if (demux->segment.stop != -1 && timestamp > demux->segment.stop)
1391 /* prepare to push packet to peer */
1392 srcpad = stream->pad;
1394 rawvideo = (avstream->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1395 avstream->codec->codec_id == AV_CODEC_ID_RAWVIDEO);
1398 outsize = gst_ffmpeg_avpicture_get_size (avstream->codec->pix_fmt,
1399 avstream->codec->width, avstream->codec->height);
1403 outbuf = gst_buffer_new_and_alloc (outsize);
1405 /* copy the data from packet into the target buffer
1406 * and do conversions for raw video packets */
1409 const gchar *plugin_name =
1410 ((GstFFMpegDemuxClass *) (G_OBJECT_GET_CLASS (demux)))->in_plugin->name;
1413 if (strcmp (plugin_name, "gif") == 0) {
1414 src.data[0] = pkt.data;
1417 src.linesize[0] = avstream->codec->width * 3;
1419 GST_WARNING ("Unknown demuxer %s, no idea what to do", plugin_name);
1420 gst_ffmpeg_avpicture_fill (&src, pkt.data,
1421 avstream->codec->pix_fmt, avstream->codec->width,
1422 avstream->codec->height);
1425 gst_buffer_map (outbuf, &map, GST_MAP_WRITE);
1426 gst_ffmpeg_avpicture_fill (&dst, map.data,
1427 avstream->codec->pix_fmt, avstream->codec->width,
1428 avstream->codec->height);
1430 av_picture_copy (&dst, &src, avstream->codec->pix_fmt,
1431 avstream->codec->width, avstream->codec->height);
1432 gst_buffer_unmap (outbuf, &map);
1434 gst_buffer_fill (outbuf, 0, pkt.data, outsize);
1437 GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
1438 GST_BUFFER_DURATION (outbuf) = duration;
1440 /* mark keyframes */
1441 if (!(pkt.flags & AV_PKT_FLAG_KEY)) {
1442 GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
1446 if (stream->discont) {
1447 GST_DEBUG_OBJECT (demux, "marking DISCONT");
1448 GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
1449 stream->discont = FALSE;
1452 GST_DEBUG_OBJECT (demux,
1453 "Sending out buffer time:%" GST_TIME_FORMAT " size:%" G_GSIZE_FORMAT,
1454 GST_TIME_ARGS (timestamp), gst_buffer_get_size (outbuf));
1456 ret = stream_last_flow = gst_pad_push (srcpad, outbuf);
1458 /* if a pad is in e.g. WRONG_STATE, we want to pause to unlock the STREAM_LOCK */
1459 if (((ret = gst_flow_combiner_update_flow (demux->flowcombiner,
1460 ret)) != GST_FLOW_OK)) {
1461 GST_WARNING_OBJECT (demux, "stream_movi flow: %s / %s",
1462 gst_flow_get_name (stream_last_flow), gst_flow_get_name (ret));
1467 /* can destroy the packet now */
1468 av_free_packet (&pkt);
1475 GST_LOG_OBJECT (demux, "pausing task, reason %d (%s)", ret,
1476 gst_flow_get_name (ret));
1477 if (demux->seekable)
1478 gst_pad_pause_task (demux->sinkpad);
1480 GstFFMpegPipe *ffpipe = &demux->ffpipe;
1482 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1483 /* pause task and make sure loop stops */
1484 gst_task_pause (demux->task);
1485 g_rec_mutex_lock (&demux->task_lock);
1486 g_rec_mutex_unlock (&demux->task_lock);
1487 demux->ffpipe.srcresult = ret;
1488 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1491 if (ret == GST_FLOW_EOS) {
1492 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1495 if ((stop = demux->segment.stop) == -1)
1496 stop = demux->segment.duration;
1498 GST_LOG_OBJECT (demux, "posting segment done");
1499 gst_element_post_message (GST_ELEMENT (demux),
1500 gst_message_new_segment_done (GST_OBJECT (demux),
1501 demux->segment.format, stop));
1502 gst_ffmpegdemux_push_event (demux,
1503 gst_event_new_segment_done (demux->segment.format, stop));
1505 GST_LOG_OBJECT (demux, "pushing eos");
1506 gst_ffmpegdemux_push_event (demux, gst_event_new_eos ());
1508 } else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS) {
1509 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1510 ("Internal data stream error."),
1511 ("streaming stopped, reason %s", gst_flow_get_name (ret)));
1512 gst_ffmpegdemux_push_event (demux, gst_event_new_eos ());
1518 ret = GST_FLOW_ERROR;
1523 /* something went wrong... */
1524 GST_WARNING_OBJECT (demux, "av_read_frame returned %d", res);
1526 GST_OBJECT_LOCK (demux);
1527 /* pause appropriatly based on if we are flushing or not */
1528 if (demux->flushing)
1529 ret = GST_FLOW_FLUSHING;
1530 else if (gst_ffmpegdemux_has_outputted (demux)
1531 || gst_ffmpegdemux_is_eos (demux)) {
1532 GST_DEBUG_OBJECT (demux, "We are EOS");
1535 ret = GST_FLOW_ERROR;
1536 GST_OBJECT_UNLOCK (demux);
1542 GST_DEBUG_OBJECT (demux, "dropping buffer out of segment, stream eos");
1544 if (gst_ffmpegdemux_is_eos (demux)) {
1545 av_free_packet (&pkt);
1546 GST_DEBUG_OBJECT (demux, "we are eos");
1550 GST_DEBUG_OBJECT (demux, "some streams are not yet eos");
1558 gst_ffmpegdemux_sink_event (GstPad * sinkpad, GstObject * parent,
1561 GstFFMpegDemux *demux;
1562 GstFFMpegPipe *ffpipe;
1563 gboolean result = TRUE;
1565 demux = (GstFFMpegDemux *) parent;
1566 ffpipe = &(demux->ffpipe);
1568 GST_LOG_OBJECT (demux, "event: %" GST_PTR_FORMAT, event);
1570 switch (GST_EVENT_TYPE (event)) {
1571 case GST_EVENT_FLUSH_START:
1573 gst_pad_event_default (sinkpad, parent, event);
1575 /* now unblock the chain function */
1576 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1577 ffpipe->srcresult = GST_FLOW_FLUSHING;
1578 GST_FFMPEG_PIPE_SIGNAL (ffpipe);
1579 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1581 /* loop might run into WRONG_STATE and end itself,
1582 * but may also be waiting in a ffmpeg read
1583 * trying to break that would make ffmpeg believe eos,
1584 * so no harm to have the loop 'pausing' there ... */
1586 case GST_EVENT_FLUSH_STOP:
1588 gst_pad_event_default (sinkpad, parent, event);
1590 GST_OBJECT_LOCK (demux);
1591 g_list_foreach (demux->cached_events, (GFunc) gst_mini_object_unref,
1593 g_list_free (demux->cached_events);
1594 GST_OBJECT_UNLOCK (demux);
1595 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1596 gst_adapter_clear (ffpipe->adapter);
1597 ffpipe->srcresult = GST_FLOW_OK;
1598 /* loop may have decided to end itself as a result of flush WRONG_STATE */
1599 gst_task_start (demux->task);
1600 demux->flushing = FALSE;
1601 GST_LOG_OBJECT (demux, "loop started");
1602 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1605 /* inform the src task that it can stop now */
1606 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1608 GST_FFMPEG_PIPE_SIGNAL (ffpipe);
1609 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1611 /* eat this event for now, task will send eos when finished */
1612 gst_event_unref (event);
1614 case GST_EVENT_STREAM_START:
1615 case GST_EVENT_CAPS:
1616 GST_LOG_OBJECT (demux, "dropping %s event", GST_EVENT_TYPE_NAME (event));
1617 gst_event_unref (event);
1620 /* for a serialized event, wait until an earlier data is gone,
1621 * though this is no guarantee as to when task is done with it.
1623 * If the demuxer isn't opened, push straight away, since we'll
1624 * be waiting against a cond that will never be signalled. */
1625 if (GST_EVENT_IS_SERIALIZED (event)) {
1626 if (demux->opened) {
1627 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1628 while (!ffpipe->needed)
1629 GST_FFMPEG_PIPE_WAIT (ffpipe);
1630 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1632 /* queue events and send them later (esp. tag events) */
1633 GST_OBJECT_LOCK (demux);
1634 demux->cached_events = g_list_append (demux->cached_events, event);
1635 GST_OBJECT_UNLOCK (demux);
1642 result = gst_pad_event_default (sinkpad, parent, event);
1649 static GstFlowReturn
1650 gst_ffmpegdemux_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * buffer)
1652 GstFFMpegDemux *demux;
1653 GstFFMpegPipe *ffpipe;
1655 demux = (GstFFMpegDemux *) parent;
1656 ffpipe = &demux->ffpipe;
1658 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1660 if (G_UNLIKELY (ffpipe->eos))
1663 if (G_UNLIKELY (ffpipe->srcresult != GST_FLOW_OK))
1666 GST_DEBUG ("Giving a buffer of %" G_GSIZE_FORMAT " bytes",
1667 gst_buffer_get_size (buffer));
1668 gst_adapter_push (ffpipe->adapter, buffer);
1670 while (gst_adapter_available (ffpipe->adapter) >= ffpipe->needed) {
1671 GST_DEBUG ("Adapter has more that requested (ffpipe->needed:%d)",
1673 GST_FFMPEG_PIPE_SIGNAL (ffpipe);
1674 GST_FFMPEG_PIPE_WAIT (ffpipe);
1675 /* may have become flushing */
1676 if (G_UNLIKELY (ffpipe->srcresult != GST_FLOW_OK))
1680 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1687 GST_DEBUG_OBJECT (demux, "ignoring buffer at end-of-stream");
1688 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1690 gst_buffer_unref (buffer);
1691 return GST_FLOW_EOS;
1695 GST_DEBUG_OBJECT (demux, "ignoring buffer because src task encountered %s",
1696 gst_flow_get_name (ffpipe->srcresult));
1697 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1700 gst_buffer_unref (buffer);
1701 return GST_FLOW_FLUSHING;
1706 gst_ffmpegdemux_sink_activate (GstPad * sinkpad, GstObject * parent)
1710 GstSchedulingFlags flags;
1712 query = gst_query_new_scheduling ();
1714 if (!gst_pad_peer_query (sinkpad, query)) {
1715 gst_query_unref (query);
1719 pull_mode = gst_query_has_scheduling_mode_with_flags (query,
1720 GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
1722 gst_query_parse_scheduling (query, &flags, NULL, NULL, NULL);
1723 if (flags & GST_SCHEDULING_FLAG_SEQUENTIAL)
1726 gst_query_unref (query);
1731 GST_DEBUG_OBJECT (sinkpad, "activating pull");
1732 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
1736 GST_DEBUG_OBJECT (sinkpad, "activating push");
1737 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
1743 * - use gstpipe protocol, like ffmpeg's pipe protocol
1744 * - (independently managed) task driving ffmpeg
1747 gst_ffmpegdemux_sink_activate_push (GstPad * sinkpad, GstObject * parent,
1750 GstFFMpegDemux *demux;
1751 gboolean res = FALSE;
1753 demux = (GstFFMpegDemux *) (parent);
1756 if (demux->can_push == FALSE) {
1757 GST_WARNING_OBJECT (demux, "Demuxer can't reliably operate in push-mode");
1760 demux->ffpipe.eos = FALSE;
1761 demux->ffpipe.srcresult = GST_FLOW_OK;
1762 demux->ffpipe.needed = 0;
1763 demux->seekable = FALSE;
1764 res = gst_task_start (demux->task);
1766 GstFFMpegPipe *ffpipe = &demux->ffpipe;
1768 /* release chain and loop */
1769 GST_FFMPEG_PIPE_MUTEX_LOCK (ffpipe);
1770 demux->ffpipe.srcresult = GST_FLOW_FLUSHING;
1771 /* end streaming by making ffmpeg believe eos */
1772 demux->ffpipe.eos = TRUE;
1773 GST_FFMPEG_PIPE_SIGNAL (ffpipe);
1774 GST_FFMPEG_PIPE_MUTEX_UNLOCK (ffpipe);
1776 /* make sure streaming ends */
1777 gst_task_stop (demux->task);
1778 g_rec_mutex_lock (&demux->task_lock);
1779 g_rec_mutex_unlock (&demux->task_lock);
1780 res = gst_task_join (demux->task);
1781 demux->seekable = FALSE;
1790 * - use gstreamer protocol, like ffmpeg's file protocol
1791 * - task driving ffmpeg based on sink pad
1794 gst_ffmpegdemux_sink_activate_pull (GstPad * sinkpad, GstObject * parent,
1797 GstFFMpegDemux *demux;
1800 demux = (GstFFMpegDemux *) parent;
1803 demux->seekable = TRUE;
1804 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_ffmpegdemux_loop,
1807 res = gst_pad_stop_task (sinkpad);
1808 demux->seekable = FALSE;
1815 gst_ffmpegdemux_sink_activate_mode (GstPad * sinkpad, GstObject * parent,
1816 GstPadMode mode, gboolean active)
1821 case GST_PAD_MODE_PUSH:
1822 res = gst_ffmpegdemux_sink_activate_push (sinkpad, parent, active);
1824 case GST_PAD_MODE_PULL:
1825 res = gst_ffmpegdemux_sink_activate_pull (sinkpad, parent, active);
1834 static GstStateChangeReturn
1835 gst_ffmpegdemux_change_state (GstElement * element, GstStateChange transition)
1837 GstFFMpegDemux *demux = (GstFFMpegDemux *) (element);
1838 GstStateChangeReturn ret;
1840 switch (transition) {
1841 case GST_STATE_CHANGE_READY_TO_PAUSED:
1843 /* test seek in READY here */
1844 gst_element_send_event (element, gst_event_new_seek (1.0,
1845 GST_FORMAT_TIME, GST_SEEK_FLAG_NONE,
1846 GST_SEEK_TYPE_SET, 10 * GST_SECOND,
1847 GST_SEEK_TYPE_SET, 13 * GST_SECOND));
1854 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1856 switch (transition) {
1857 case GST_STATE_CHANGE_PAUSED_TO_READY:
1858 gst_ffmpegdemux_close (demux);
1859 gst_adapter_clear (demux->ffpipe.adapter);
1860 g_list_foreach (demux->cached_events, (GFunc) gst_mini_object_unref,
1862 g_list_free (demux->cached_events);
1863 demux->cached_events = NULL;
1864 demux->have_group_id = FALSE;
1865 demux->group_id = G_MAXUINT;
1875 gst_ffmpegdemux_register (GstPlugin * plugin)
1878 AVInputFormat *in_plugin;
1880 GTypeInfo typeinfo = {
1881 sizeof (GstFFMpegDemuxClass),
1882 (GBaseInitFunc) gst_ffmpegdemux_base_init,
1884 (GClassInitFunc) gst_ffmpegdemux_class_init,
1887 sizeof (GstFFMpegDemux),
1889 (GInstanceInitFunc) gst_ffmpegdemux_init,
1892 in_plugin = av_iformat_next (NULL);
1894 GST_LOG ("Registering demuxers");
1897 gchar *type_name, *typefind_name;
1898 gchar *p, *name = NULL;
1900 gboolean register_typefind_func = TRUE;
1902 GST_LOG ("Attempting to handle libav demuxer plugin %s [%s]",
1903 in_plugin->name, in_plugin->long_name);
1906 if (!strncmp (in_plugin->long_name, "raw ", 4) ||
1907 !strncmp (in_plugin->long_name, "pcm ", 4) ||
1908 !strcmp (in_plugin->name, "audio_device") ||
1909 !strncmp (in_plugin->name, "image", 5) ||
1910 !strcmp (in_plugin->name, "mpegvideo") ||
1911 !strcmp (in_plugin->name, "mjpeg") ||
1912 !strcmp (in_plugin->name, "redir") ||
1913 !strncmp (in_plugin->name, "u8", 2) ||
1914 !strncmp (in_plugin->name, "u16", 3) ||
1915 !strncmp (in_plugin->name, "u24", 3) ||
1916 !strncmp (in_plugin->name, "u32", 3) ||
1917 !strncmp (in_plugin->name, "s8", 2) ||
1918 !strncmp (in_plugin->name, "s16", 3) ||
1919 !strncmp (in_plugin->name, "s24", 3) ||
1920 !strncmp (in_plugin->name, "s32", 3) ||
1921 !strncmp (in_plugin->name, "f32", 3) ||
1922 !strncmp (in_plugin->name, "f64", 3) ||
1923 !strcmp (in_plugin->name, "mulaw") || !strcmp (in_plugin->name, "alaw")
1927 /* no network demuxers */
1928 if (!strcmp (in_plugin->name, "sdp") ||
1929 !strcmp (in_plugin->name, "rtsp") ||
1930 !strcmp (in_plugin->name, "applehttp")
1934 /* these don't do what one would expect or
1935 * are only partially functional/useful */
1936 if (!strcmp (in_plugin->name, "aac") ||
1937 !strcmp (in_plugin->name, "wv") ||
1938 !strcmp (in_plugin->name, "ass") ||
1939 !strcmp (in_plugin->name, "ffmetadata"))
1942 /* Don't use the typefind functions of formats for which we already have
1943 * better typefind functions */
1944 if (!strcmp (in_plugin->name, "mov,mp4,m4a,3gp,3g2,mj2") ||
1945 !strcmp (in_plugin->name, "ass") ||
1946 !strcmp (in_plugin->name, "avi") ||
1947 !strcmp (in_plugin->name, "asf") ||
1948 !strcmp (in_plugin->name, "mpegvideo") ||
1949 !strcmp (in_plugin->name, "mp3") ||
1950 !strcmp (in_plugin->name, "matroska") ||
1951 !strcmp (in_plugin->name, "matroska_webm") ||
1952 !strcmp (in_plugin->name, "matroska,webm") ||
1953 !strcmp (in_plugin->name, "mpeg") ||
1954 !strcmp (in_plugin->name, "wav") ||
1955 !strcmp (in_plugin->name, "au") ||
1956 !strcmp (in_plugin->name, "tta") ||
1957 !strcmp (in_plugin->name, "rm") ||
1958 !strcmp (in_plugin->name, "amr") ||
1959 !strcmp (in_plugin->name, "ogg") ||
1960 !strcmp (in_plugin->name, "aiff") ||
1961 !strcmp (in_plugin->name, "ape") ||
1962 !strcmp (in_plugin->name, "dv") ||
1963 !strcmp (in_plugin->name, "flv") ||
1964 !strcmp (in_plugin->name, "mpc") ||
1965 !strcmp (in_plugin->name, "mpc8") ||
1966 !strcmp (in_plugin->name, "mpegts") ||
1967 !strcmp (in_plugin->name, "mpegtsraw") ||
1968 !strcmp (in_plugin->name, "mxf") ||
1969 !strcmp (in_plugin->name, "nuv") ||
1970 !strcmp (in_plugin->name, "swf") ||
1971 !strcmp (in_plugin->name, "voc") ||
1972 !strcmp (in_plugin->name, "pva") ||
1973 !strcmp (in_plugin->name, "gif") || !strcmp (in_plugin->name, "vc1test")
1975 register_typefind_func = FALSE;
1977 /* Set the rank of demuxers known to work to MARGINAL.
1978 * Set demuxers for which we already have another implementation to NONE
1979 * Set All others to NONE*/
1980 if (!strcmp (in_plugin->name, "wsvqa") ||
1981 !strcmp (in_plugin->name, "wsaud") ||
1982 !strcmp (in_plugin->name, "wc3movie") ||
1983 !strcmp (in_plugin->name, "voc") ||
1984 !strcmp (in_plugin->name, "tta") ||
1985 !strcmp (in_plugin->name, "sol") ||
1986 !strcmp (in_plugin->name, "smk") ||
1987 !strcmp (in_plugin->name, "vmd") ||
1988 !strcmp (in_plugin->name, "film_cpk") ||
1989 !strcmp (in_plugin->name, "ingenient") ||
1990 !strcmp (in_plugin->name, "psxstr") ||
1991 !strcmp (in_plugin->name, "nuv") ||
1992 !strcmp (in_plugin->name, "nut") ||
1993 !strcmp (in_plugin->name, "nsv") ||
1994 !strcmp (in_plugin->name, "mxf") ||
1995 !strcmp (in_plugin->name, "mmf") ||
1996 !strcmp (in_plugin->name, "mm") ||
1997 !strcmp (in_plugin->name, "ipmovie") ||
1998 !strcmp (in_plugin->name, "ape") ||
1999 !strcmp (in_plugin->name, "RoQ") ||
2000 !strcmp (in_plugin->name, "idcin") ||
2001 !strcmp (in_plugin->name, "gxf") ||
2002 !strcmp (in_plugin->name, "ffm") ||
2003 !strcmp (in_plugin->name, "ea") ||
2004 !strcmp (in_plugin->name, "daud") ||
2005 !strcmp (in_plugin->name, "avs") ||
2006 !strcmp (in_plugin->name, "aiff") ||
2007 !strcmp (in_plugin->name, "4xm") ||
2008 !strcmp (in_plugin->name, "yuv4mpegpipe") ||
2009 !strcmp (in_plugin->name, "pva") ||
2010 !strcmp (in_plugin->name, "mpc") || !strcmp (in_plugin->name, "gif"))
2011 rank = GST_RANK_MARGINAL;
2013 GST_DEBUG ("ignoring %s", in_plugin->name);
2014 rank = GST_RANK_NONE;
2018 p = name = g_strdup (in_plugin->name);
2020 if (*p == '.' || *p == ',')
2025 /* construct the type */
2026 type_name = g_strdup_printf ("avdemux_%s", name);
2028 /* if it's already registered, drop it */
2029 if (g_type_from_name (type_name)) {
2034 typefind_name = g_strdup_printf ("avtype_%s", name);
2036 /* create the type now */
2037 type = g_type_register_static (GST_TYPE_ELEMENT, type_name, &typeinfo, 0);
2038 g_type_set_qdata (type, GST_FFDEMUX_PARAMS_QDATA, (gpointer) in_plugin);
2040 if (in_plugin->extensions)
2041 extensions = g_strdelimit (g_strdup (in_plugin->extensions), " ", ',');
2045 if (!gst_element_register (plugin, type_name, rank, type) ||
2046 (register_typefind_func == TRUE &&
2047 !gst_type_find_register (plugin, typefind_name, rank,
2048 gst_ffmpegdemux_type_find, extensions, NULL, in_plugin,
2050 g_warning ("Register of type avdemux_%s failed", name);
2052 g_free (typefind_name);
2057 g_free (typefind_name);
2058 g_free (extensions);
2062 in_plugin = av_iformat_next (in_plugin);
2065 GST_LOG ("Finished registering demuxers");