1 /* GStreamer RealMedia demuxer
2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) <2003> David A. Schleef <ds@schleef.org>
4 * Copyright (C) <2004> Stephane Loeuillet <gstreamer@leroutier.net>
5 * Copyright (C) <2005> Owen Fraser-Green <owen@discobabe.net>
6 * Copyright (C) <2005> Michael Smith <fluendo.com>
7 * Copyright (C) <2006> Wim Taymans <wim@fluendo.com>
8 * Copyright (C) <2006> Tim-Philipp Müller <tim centricular net>
9 * Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Library General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Library General Public License for more details.
21 * You should have received a copy of the GNU Library General Public
22 * License along with this library; if not, write to the
23 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 * Boston, MA 02111-1307, USA.
37 #define RMDEMUX_GUINT32_GET(a) GST_READ_UINT32_BE(a)
38 #define RMDEMUX_GUINT16_GET(a) GST_READ_UINT16_BE(a)
39 #define RMDEMUX_FOURCC_GET(a) GST_READ_UINT32_LE(a)
40 #define HEADER_SIZE 10
45 static const guint8 sipr_subpk_size[4] = { 29, 19, 37, 20 };
47 typedef struct _GstRMDemuxIndex GstRMDemuxIndex;
49 struct _GstRMDemuxStream
58 GstFlowReturn last_flow;
63 GstRMDemuxIndex *index;
65 gint framerate_numerator;
66 gint framerate_denominator;
72 guint16 rate; /* samplerate */
73 guint16 n_channels; /* channels */
74 guint16 sample_width; /* bits_per_sample */
75 guint16 leaf_size; /* subpacket_size */
76 guint32 packet_size; /* coded_frame_size */
78 guint32 extra_data_size; /* codec_data_length */
79 guint8 *extra_data; /* extras */
82 gboolean needs_descrambling;
83 guint subpackets_needed; /* subpackets needed for descrambling */
84 GPtrArray *subpackets; /* array containing subpacket GstBuffers */
86 /* Variables needed for fixing timestamps. */
87 GstClockTime next_ts, last_ts;
88 guint16 next_seq, last_seq;
95 guint frag_offset[MAX_FRAGS];
98 GstTagList *pending_tags;
101 struct _GstRMDemuxIndex
104 GstClockTime timestamp;
107 static GstStaticPadTemplate gst_rmdemux_sink_template =
108 GST_STATIC_PAD_TEMPLATE ("sink",
111 GST_STATIC_CAPS ("application/vnd.rn-realmedia")
114 static GstStaticPadTemplate gst_rmdemux_videosrc_template =
115 GST_STATIC_PAD_TEMPLATE ("video_%02d",
118 GST_STATIC_CAPS_ANY);
120 static GstStaticPadTemplate gst_rmdemux_audiosrc_template =
121 GST_STATIC_PAD_TEMPLATE ("audio_%02d",
124 GST_STATIC_CAPS_ANY);
126 GST_DEBUG_CATEGORY_STATIC (rmdemux_debug);
127 #define GST_CAT_DEFAULT rmdemux_debug
129 static GstElementClass *parent_class = NULL;
131 static void gst_rmdemux_class_init (GstRMDemuxClass * klass);
132 static void gst_rmdemux_base_init (GstRMDemuxClass * klass);
133 static void gst_rmdemux_init (GstRMDemux * rmdemux);
134 static void gst_rmdemux_finalize (GObject * object);
135 static GstStateChangeReturn gst_rmdemux_change_state (GstElement * element,
136 GstStateChange transition);
137 static GstFlowReturn gst_rmdemux_chain (GstPad * pad, GstBuffer * buffer);
138 static void gst_rmdemux_loop (GstPad * pad);
139 static gboolean gst_rmdemux_sink_activate (GstPad * sinkpad);
140 static gboolean gst_rmdemux_sink_activate_push (GstPad * sinkpad,
142 static gboolean gst_rmdemux_sink_activate_pull (GstPad * sinkpad,
144 static gboolean gst_rmdemux_sink_event (GstPad * pad, GstEvent * event);
145 static gboolean gst_rmdemux_src_event (GstPad * pad, GstEvent * event);
146 static void gst_rmdemux_send_event (GstRMDemux * rmdemux, GstEvent * event);
147 static const GstQueryType *gst_rmdemux_src_query_types (GstPad * pad);
148 static gboolean gst_rmdemux_src_query (GstPad * pad, GstQuery * query);
149 static gboolean gst_rmdemux_perform_seek (GstRMDemux * rmdemux,
152 static void gst_rmdemux_parse__rmf (GstRMDemux * rmdemux, const guint8 * data,
154 static void gst_rmdemux_parse_prop (GstRMDemux * rmdemux, const guint8 * data,
156 static void gst_rmdemux_parse_mdpr (GstRMDemux * rmdemux,
157 const guint8 * data, int length);
158 static guint gst_rmdemux_parse_indx (GstRMDemux * rmdemux, const guint8 * data,
160 static void gst_rmdemux_parse_data (GstRMDemux * rmdemux, const guint8 * data,
162 static void gst_rmdemux_parse_cont (GstRMDemux * rmdemux, const guint8 * data,
164 static GstFlowReturn gst_rmdemux_parse_packet (GstRMDemux * rmdemux,
165 GstBuffer * in, guint16 version);
166 static void gst_rmdemux_parse_indx_data (GstRMDemux * rmdemux,
167 const guint8 * data, int length);
168 static void gst_rmdemux_stream_clear_cached_subpackets (GstRMDemux * rmdemux,
169 GstRMDemuxStream * stream);
170 static GstRMDemuxStream *gst_rmdemux_get_stream_by_id (GstRMDemux * rmdemux,
174 gst_rmdemux_get_type (void)
176 static GType rmdemux_type = 0;
179 static const GTypeInfo rmdemux_info = {
180 sizeof (GstRMDemuxClass),
181 (GBaseInitFunc) gst_rmdemux_base_init, NULL,
182 (GClassInitFunc) gst_rmdemux_class_init,
183 NULL, NULL, sizeof (GstRMDemux), 0,
184 (GInstanceInitFunc) gst_rmdemux_init,
188 g_type_register_static (GST_TYPE_ELEMENT, "GstRMDemux", &rmdemux_info,
195 gst_rmdemux_base_init (GstRMDemuxClass * klass)
197 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
199 gst_element_class_add_pad_template (element_class,
200 gst_static_pad_template_get (&gst_rmdemux_sink_template));
201 gst_element_class_add_pad_template (element_class,
202 gst_static_pad_template_get (&gst_rmdemux_videosrc_template));
203 gst_element_class_add_pad_template (element_class,
204 gst_static_pad_template_get (&gst_rmdemux_audiosrc_template));
205 gst_element_class_set_details_simple (element_class, "RealMedia Demuxer",
207 "Demultiplex a RealMedia file into audio and video streams",
208 "David Schleef <ds@schleef.org>");
212 gst_rmdemux_class_init (GstRMDemuxClass * klass)
214 GObjectClass *gobject_class;
215 GstElementClass *gstelement_class;
217 gobject_class = (GObjectClass *) klass;
218 gstelement_class = (GstElementClass *) klass;
220 parent_class = g_type_class_peek_parent (klass);
222 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_rmdemux_change_state);
224 GST_DEBUG_CATEGORY_INIT (rmdemux_debug, "rmdemux",
225 0, "Demuxer for Realmedia streams");
227 gobject_class->finalize = gst_rmdemux_finalize;
231 gst_rmdemux_finalize (GObject * object)
233 GstRMDemux *rmdemux = GST_RMDEMUX (object);
235 if (rmdemux->adapter) {
236 g_object_unref (rmdemux->adapter);
237 rmdemux->adapter = NULL;
240 GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
244 gst_rmdemux_init (GstRMDemux * rmdemux)
247 gst_pad_new_from_static_template (&gst_rmdemux_sink_template, "sink");
248 gst_pad_set_event_function (rmdemux->sinkpad,
249 GST_DEBUG_FUNCPTR (gst_rmdemux_sink_event));
250 gst_pad_set_chain_function (rmdemux->sinkpad,
251 GST_DEBUG_FUNCPTR (gst_rmdemux_chain));
252 gst_pad_set_activate_function (rmdemux->sinkpad,
253 GST_DEBUG_FUNCPTR (gst_rmdemux_sink_activate));
254 gst_pad_set_activatepull_function (rmdemux->sinkpad,
255 GST_DEBUG_FUNCPTR (gst_rmdemux_sink_activate_pull));
256 gst_pad_set_activatepush_function (rmdemux->sinkpad,
257 GST_DEBUG_FUNCPTR (gst_rmdemux_sink_activate_push));
259 gst_element_add_pad (GST_ELEMENT (rmdemux), rmdemux->sinkpad);
261 rmdemux->adapter = gst_adapter_new ();
262 rmdemux->first_ts = GST_CLOCK_TIME_NONE;
263 rmdemux->base_ts = GST_CLOCK_TIME_NONE;
264 rmdemux->need_newsegment = TRUE;
266 gst_rm_utils_run_tests ();
270 gst_rmdemux_sink_event (GstPad * pad, GstEvent * event)
275 rmdemux = GST_RMDEMUX (gst_pad_get_parent (pad));
277 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
279 switch (GST_EVENT_TYPE (event)) {
280 case GST_EVENT_NEWSEGMENT:
281 gst_event_unref (event);
285 ret = gst_pad_event_default (pad, event);
289 gst_object_unref (rmdemux);
294 gst_rmdemux_src_event (GstPad * pad, GstEvent * event)
298 GstRMDemux *rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
300 GST_LOG_OBJECT (rmdemux, "handling src event");
302 switch (GST_EVENT_TYPE (event)) {
307 GST_LOG_OBJECT (rmdemux, "Event on src: SEEK");
308 /* can't seek if we are not seekable, FIXME could pass the
309 * seek query upstream after converting it to bytes using
310 * the average bitrate of the stream. */
311 if (!rmdemux->seekable) {
313 GST_DEBUG ("seek on non seekable stream");
317 GST_OBJECT_LOCK (rmdemux);
318 /* check if we can do the seek now */
319 running = rmdemux->running;
320 GST_OBJECT_UNLOCK (rmdemux);
322 /* now do the seek */
324 ret = gst_rmdemux_perform_seek (rmdemux, event);
328 gst_event_unref (event);
332 GST_LOG_OBJECT (rmdemux, "Event on src: type=%d", GST_EVENT_TYPE (event));
333 ret = gst_pad_event_default (pad, event);
340 GST_DEBUG ("error handling event");
341 gst_event_unref (event);
345 /* Validate that this looks like a reasonable point to seek to */
347 gst_rmdemux_validate_offset (GstRMDemux * rmdemux)
350 GstFlowReturn flowret;
351 guint16 version, length;
354 flowret = gst_pad_pull_range (rmdemux->sinkpad, rmdemux->offset, 4, &buffer);
356 if (flowret != GST_FLOW_OK) {
357 GST_DEBUG_OBJECT (rmdemux, "Failed to pull data at offset %d",
361 /* TODO: Can we also be seeking to a 'DATA' chunk header? Check this.
362 * Also, for the case we currently handle, can we check any more? It's pretty
363 * sucky to not be validating a little more heavily than this... */
364 /* This should now be the start of a data packet header. That begins with
365 * a 2-byte 'version' field, which has to be 0 or 1, then a length. I'm not
366 * certain what values are valid for length, but it must always be at least
367 * 4 bytes, and we can check that it won't take us past our known total size
370 version = RMDEMUX_GUINT16_GET (GST_BUFFER_DATA (buffer));
371 if (version != 0 && version != 1) {
372 GST_DEBUG_OBJECT (rmdemux, "Expected version 0 or 1, got %d",
377 length = RMDEMUX_GUINT16_GET (GST_BUFFER_DATA (buffer) + 2);
378 /* TODO: Also check against total stream length */
380 GST_DEBUG_OBJECT (rmdemux, "Expected length >= 4, got %d", (int) length);
385 rmdemux->offset += 4;
386 gst_adapter_clear (rmdemux->adapter);
387 gst_adapter_push (rmdemux->adapter, buffer);
389 GST_WARNING_OBJECT (rmdemux, "Failed to validate seek offset at %d",
397 find_seek_offset_bytes (GstRMDemux * rmdemux, guint target)
401 gboolean ret = FALSE;
403 for (cur = rmdemux->streams; cur; cur = cur->next) {
404 GstRMDemuxStream *stream = cur->data;
406 /* Search backwards through this stream's index until we find the first
407 * timestamp before our target time */
408 for (i = stream->index_length - 1; i >= 0; i--) {
409 if (stream->index[i].offset <= target) {
410 /* Set the seek_offset for the stream so we don't bother parsing it
411 * until we've passed that point */
412 stream->seek_offset = stream->index[i].offset;
413 rmdemux->offset = stream->index[i].offset;
423 find_seek_offset_time (GstRMDemux * rmdemux, GstClockTime time)
426 gboolean ret = FALSE;
428 GstClockTime earliest = GST_CLOCK_TIME_NONE;
431 for (cur = rmdemux->streams; cur; cur = cur->next, n_stream++) {
432 GstRMDemuxStream *stream = cur->data;
434 /* Search backwards through this stream's index until we find the first
435 * timestamp before our target time */
436 for (i = stream->index_length - 1; i >= 0; i--) {
437 if (stream->index[i].timestamp <= time) {
438 /* Set the seek_offset for the stream so we don't bother parsing it
439 * until we've passed that point */
440 stream->seek_offset = stream->index[i].offset;
442 /* If it's also the earliest timestamp we've seen of all streams, then
445 if (earliest == GST_CLOCK_TIME_NONE ||
446 stream->index[i].timestamp < earliest) {
447 earliest = stream->index[i].timestamp;
448 rmdemux->offset = stream->index[i].offset;
449 GST_DEBUG_OBJECT (rmdemux,
450 "We're looking for %" GST_TIME_FORMAT
451 " and we found that stream %d has the latest index at %"
452 GST_TIME_FORMAT, GST_TIME_ARGS (rmdemux->segment.start), n_stream,
453 GST_TIME_ARGS (earliest));
461 stream->discont = TRUE;
467 gst_rmdemux_perform_seek (GstRMDemux * rmdemux, GstEvent * event)
475 GstSeekType cur_type, stop_type;
480 GST_DEBUG_OBJECT (rmdemux, "seek with event");
482 gst_event_parse_seek (event, &rate, &format, &flags,
483 &cur_type, &cur, &stop_type, &stop);
485 /* we can only seek on time */
486 if (format != GST_FORMAT_TIME) {
487 GST_DEBUG_OBJECT (rmdemux, "can only seek on TIME");
490 /* cannot yet do backwards playback */
492 GST_DEBUG_OBJECT (rmdemux, "can only seek with positive rate, not %lf",
497 GST_DEBUG_OBJECT (rmdemux, "seek without event");
503 GST_DEBUG_OBJECT (rmdemux, "seek, rate %g", rate);
505 flush = flags & GST_SEEK_FLAG_FLUSH;
507 /* first step is to unlock the streaming thread if it is
508 * blocked in a chain call, we do this by starting the flush. */
510 gst_pad_push_event (rmdemux->sinkpad, gst_event_new_flush_start ());
511 gst_rmdemux_send_event (rmdemux, gst_event_new_flush_start ());
513 gst_pad_pause_task (rmdemux->sinkpad);
516 GST_LOG_OBJECT (rmdemux, "Done starting flushes");
518 /* now grab the stream lock so that streaming cannot continue, for
519 * non flushing seeks when the element is in PAUSED this could block
521 GST_PAD_STREAM_LOCK (rmdemux->sinkpad);
523 GST_LOG_OBJECT (rmdemux, "Took streamlock");
525 /* close current segment first */
526 if (rmdemux->segment_running && !flush) {
529 newseg = gst_event_new_new_segment (TRUE, rmdemux->segment.rate,
530 GST_FORMAT_TIME, rmdemux->segment.start,
531 rmdemux->segment.last_stop, rmdemux->segment.time);
533 gst_rmdemux_send_event (rmdemux, newseg);
537 gst_segment_set_seek (&rmdemux->segment, rate, format, flags,
538 cur_type, cur, stop_type, stop, &update);
541 GST_DEBUG_OBJECT (rmdemux, "segment positions set to %" GST_TIME_FORMAT "-%"
542 GST_TIME_FORMAT, GST_TIME_ARGS (rmdemux->segment.start),
543 GST_TIME_ARGS (rmdemux->segment.stop));
545 /* we need to stop flushing on the sinkpad as we're going to use it
546 * next. We can do this as we have the STREAM lock now. */
547 gst_pad_push_event (rmdemux->sinkpad, gst_event_new_flush_stop ());
549 GST_LOG_OBJECT (rmdemux, "Pushed FLUSH_STOP event");
551 /* For each stream, find the first index offset equal to or before our seek
552 * target. Of these, find the smallest offset. That's where we seek to.
554 * Then we pull 4 bytes from that offset, and validate that we've seeked to a
555 * what looks like a plausible packet.
556 * If that fails, restart, with the seek target set to one less than the
557 * offset we just tried. If we run out of places to try, treat that as a fatal
560 if (!find_seek_offset_time (rmdemux, rmdemux->segment.last_stop)) {
561 GST_LOG_OBJECT (rmdemux, "Failed to find seek offset by time");
566 GST_LOG_OBJECT (rmdemux, "Validating offset %u", rmdemux->offset);
567 validated = gst_rmdemux_validate_offset (rmdemux);
569 GST_INFO_OBJECT (rmdemux, "Failed to validate offset at %u",
571 if (!find_seek_offset_bytes (rmdemux, rmdemux->offset - 1)) {
575 validated = gst_rmdemux_validate_offset (rmdemux);
578 GST_LOG_OBJECT (rmdemux, "Found final offset. Excellent!");
580 /* now we have a new position, prepare for streaming again */
582 /* Reset the demuxer state */
583 rmdemux->state = RMDEMUX_STATE_DATA_PACKET;
586 gst_rmdemux_send_event (rmdemux, gst_event_new_flush_stop ());
588 /* must send newsegment event from streaming thread, so just set flag */
589 rmdemux->need_newsegment = TRUE;
591 /* notify start of new segment */
592 if (rmdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
593 gst_element_post_message (GST_ELEMENT_CAST (rmdemux),
594 gst_message_new_segment_start (GST_OBJECT_CAST (rmdemux),
595 GST_FORMAT_TIME, rmdemux->segment.last_stop));
598 /* restart our task since it might have been stopped when we did the
600 gst_pad_start_task (rmdemux->sinkpad, (GstTaskFunction) gst_rmdemux_loop,
605 /* streaming can continue now */
606 GST_PAD_STREAM_UNLOCK (rmdemux->sinkpad);
612 GST_DEBUG_OBJECT (rmdemux, "seek failed");
619 gst_rmdemux_src_query (GstPad * pad, GstQuery * query)
621 gboolean res = FALSE;
624 rmdemux = GST_RMDEMUX (gst_pad_get_parent (pad));
626 switch (GST_QUERY_TYPE (query)) {
627 case GST_QUERY_POSITION:
628 GST_DEBUG_OBJECT (rmdemux, "Position query: no idea from demuxer!");
630 case GST_QUERY_DURATION:{
633 gst_query_parse_duration (query, &fmt, NULL);
634 if (fmt == GST_FORMAT_TIME) {
635 GST_OBJECT_LOCK (rmdemux);
636 if (G_LIKELY (rmdemux->running)) {
637 gst_query_set_duration (query, GST_FORMAT_TIME, rmdemux->duration);
638 GST_DEBUG_OBJECT (rmdemux, "duration set to %" GST_TIME_FORMAT,
639 GST_TIME_ARGS (rmdemux->duration));
642 GST_OBJECT_UNLOCK (rmdemux);
646 case GST_QUERY_SEEKING:{
649 gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
650 if (fmt == GST_FORMAT_TIME) {
651 GST_OBJECT_LOCK (rmdemux);
652 if (G_LIKELY (rmdemux->running)) {
653 gst_query_set_seeking (query, GST_FORMAT_TIME, rmdemux->seekable,
654 0, rmdemux->duration);
657 GST_OBJECT_UNLOCK (rmdemux);
662 res = gst_pad_query_default (pad, query);
666 gst_object_unref (rmdemux);
670 static const GstQueryType *
671 gst_rmdemux_src_query_types (GstPad * pad)
673 static const GstQueryType query_types[] = {
684 gst_rmdemux_reset (GstRMDemux * rmdemux)
688 GST_OBJECT_LOCK (rmdemux);
689 rmdemux->running = FALSE;
690 GST_OBJECT_UNLOCK (rmdemux);
692 for (cur = rmdemux->streams; cur; cur = cur->next) {
693 GstRMDemuxStream *stream = cur->data;
695 g_object_unref (stream->adapter);
696 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
697 gst_element_remove_pad (GST_ELEMENT (rmdemux), stream->pad);
698 if (stream->pending_tags)
699 gst_tag_list_free (stream->pending_tags);
700 if (stream->subpackets)
701 g_ptr_array_free (stream->subpackets, TRUE);
702 g_free (stream->index);
705 g_slist_free (rmdemux->streams);
706 rmdemux->streams = NULL;
707 rmdemux->n_audio_streams = 0;
708 rmdemux->n_video_streams = 0;
710 if (rmdemux->pending_tags != NULL) {
711 gst_tag_list_free (rmdemux->pending_tags);
712 rmdemux->pending_tags = NULL;
715 gst_adapter_clear (rmdemux->adapter);
716 rmdemux->state = RMDEMUX_STATE_HEADER;
717 rmdemux->have_pads = FALSE;
719 gst_segment_init (&rmdemux->segment, GST_FORMAT_UNDEFINED);
720 rmdemux->first_ts = GST_CLOCK_TIME_NONE;
721 rmdemux->base_ts = GST_CLOCK_TIME_NONE;
722 rmdemux->need_newsegment = TRUE;
725 static GstStateChangeReturn
726 gst_rmdemux_change_state (GstElement * element, GstStateChange transition)
728 GstRMDemux *rmdemux = GST_RMDEMUX (element);
729 GstStateChangeReturn res;
731 switch (transition) {
732 case GST_STATE_CHANGE_NULL_TO_READY:
734 case GST_STATE_CHANGE_READY_TO_PAUSED:
735 rmdemux->state = RMDEMUX_STATE_HEADER;
736 rmdemux->have_pads = FALSE;
737 gst_segment_init (&rmdemux->segment, GST_FORMAT_TIME);
738 rmdemux->running = FALSE;
740 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
746 res = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
748 switch (transition) {
749 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
751 case GST_STATE_CHANGE_PAUSED_TO_READY:{
752 gst_rmdemux_reset (rmdemux);
755 case GST_STATE_CHANGE_READY_TO_NULL:
764 /* this function is called when the pad is activated and should start
767 * We check if we can do random access to decide if we work push or
771 gst_rmdemux_sink_activate (GstPad * sinkpad)
773 if (gst_pad_check_pull_range (sinkpad)) {
774 return gst_pad_activate_pull (sinkpad, TRUE);
776 return gst_pad_activate_push (sinkpad, TRUE);
780 /* this function gets called when we activate ourselves in push mode.
781 * We cannot seek (ourselves) in the stream */
783 gst_rmdemux_sink_activate_push (GstPad * pad, gboolean active)
787 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
789 GST_DEBUG_OBJECT (rmdemux, "activate_push");
791 rmdemux->seekable = FALSE;
796 /* this function gets called when we activate ourselves in pull mode.
797 * We can perform random access to the resource and we start a task
798 * to start reading */
800 gst_rmdemux_sink_activate_pull (GstPad * pad, gboolean active)
804 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
806 GST_DEBUG_OBJECT (rmdemux, "activate_pull");
809 rmdemux->seekable = TRUE;
811 rmdemux->loop_state = RMDEMUX_LOOP_STATE_HEADER;
812 rmdemux->data_offset = G_MAXUINT;
814 return gst_pad_start_task (pad, (GstTaskFunction) gst_rmdemux_loop, pad);
816 return gst_pad_stop_task (pad);
820 /* random access mode - just pass over to our chain function */
822 gst_rmdemux_loop (GstPad * pad)
826 GstFlowReturn ret = GST_FLOW_OK;
829 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
831 GST_LOG_OBJECT (rmdemux, "loop with state=%d and offset=0x%x",
832 rmdemux->loop_state, rmdemux->offset);
834 switch (rmdemux->state) {
835 case RMDEMUX_STATE_HEADER:
838 case RMDEMUX_STATE_HEADER_DATA:
841 case RMDEMUX_STATE_DATA_PACKET:
842 size = rmdemux->avg_packet_size;
844 case RMDEMUX_STATE_EOS:
845 GST_LOG_OBJECT (rmdemux, "At EOS, pausing task");
846 ret = GST_FLOW_UNEXPECTED;
849 GST_LOG_OBJECT (rmdemux, "Default: requires %d bytes (state is %d)",
850 (int) rmdemux->size, rmdemux->state);
851 size = rmdemux->size;
854 ret = gst_pad_pull_range (pad, rmdemux->offset, size, &buffer);
855 if (ret != GST_FLOW_OK) {
856 if (rmdemux->offset == rmdemux->index_offset) {
857 /* The index isn't available so forget about it */
858 rmdemux->loop_state = RMDEMUX_LOOP_STATE_DATA;
859 rmdemux->offset = rmdemux->data_offset;
860 GST_OBJECT_LOCK (rmdemux);
861 rmdemux->running = TRUE;
862 rmdemux->seekable = FALSE;
863 GST_OBJECT_UNLOCK (rmdemux);
866 GST_DEBUG_OBJECT (rmdemux, "Unable to pull %d bytes at offset 0x%08x "
867 "(pull_range returned flow %s, state is %d)", (gint) size,
868 rmdemux->offset, gst_flow_get_name (ret), GST_STATE (rmdemux));
873 size = GST_BUFFER_SIZE (buffer);
875 /* Defer to the chain function */
876 ret = gst_rmdemux_chain (pad, buffer);
877 if (ret != GST_FLOW_OK) {
878 GST_DEBUG_OBJECT (rmdemux, "Chain flow failed at offset 0x%08x",
883 rmdemux->offset += size;
885 switch (rmdemux->loop_state) {
886 case RMDEMUX_LOOP_STATE_HEADER:
887 if (rmdemux->offset >= rmdemux->data_offset) {
888 /* It's the end of the header */
889 rmdemux->loop_state = RMDEMUX_LOOP_STATE_INDEX;
890 rmdemux->offset = rmdemux->index_offset;
893 case RMDEMUX_LOOP_STATE_INDEX:
894 if (rmdemux->state == RMDEMUX_STATE_HEADER) {
895 if (rmdemux->index_offset == 0) {
896 /* We've read the last index */
897 rmdemux->loop_state = RMDEMUX_LOOP_STATE_DATA;
898 rmdemux->offset = rmdemux->data_offset;
899 GST_OBJECT_LOCK (rmdemux);
900 rmdemux->running = TRUE;
901 GST_OBJECT_UNLOCK (rmdemux);
903 /* Get the next index */
904 rmdemux->offset = rmdemux->index_offset;
908 case RMDEMUX_LOOP_STATE_DATA:
917 const gchar *reason = gst_flow_get_name (ret);
919 GST_LOG_OBJECT (rmdemux, "pausing task, reason %s", reason);
920 rmdemux->segment_running = FALSE;
921 gst_pad_pause_task (rmdemux->sinkpad);
923 if (ret == GST_FLOW_UNEXPECTED) {
924 /* perform EOS logic */
925 if (rmdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
928 /* for segment playback we need to post when (in stream time)
929 * we stopped, this is either stop (when set) or the duration. */
930 if ((stop = rmdemux->segment.stop) == -1)
931 stop = rmdemux->segment.duration;
933 GST_LOG_OBJECT (rmdemux, "Sending segment done, at end of segment");
934 gst_element_post_message (GST_ELEMENT (rmdemux),
935 gst_message_new_segment_done (GST_OBJECT (rmdemux),
936 GST_FORMAT_TIME, stop));
938 /* normal playback, send EOS to all linked pads */
939 GST_LOG_OBJECT (rmdemux, "Sending EOS, at end of stream");
940 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
942 } else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED) {
943 GST_ELEMENT_ERROR (rmdemux, STREAM, FAILED,
944 (NULL), ("stream stopped, reason %s", reason));
945 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
952 gst_rmdemux_fourcc_isplausible (guint32 fourcc)
956 for (i = 0; i < 4; i++) {
957 if (!isprint ((int) ((unsigned char *) (&fourcc))[i])) {
965 gst_rmdemux_chain (GstPad * pad, GstBuffer * buffer)
967 GstFlowReturn ret = GST_FLOW_OK;
972 GstRMDemux *rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
974 if (rmdemux->base_ts == -1) {
975 rmdemux->base_ts = GST_BUFFER_TIMESTAMP (buffer);
976 GST_LOG_OBJECT (rmdemux, "base_ts %" GST_TIME_FORMAT,
977 GST_TIME_ARGS (rmdemux->base_ts));
980 gst_adapter_push (rmdemux->adapter, buffer);
982 GST_LOG_OBJECT (rmdemux, "Chaining buffer of size %d",
983 GST_BUFFER_SIZE (buffer));
986 avail = gst_adapter_available (rmdemux->adapter);
988 GST_LOG_OBJECT (rmdemux, "looping in chain, avail %u", avail);
989 switch (rmdemux->state) {
990 case RMDEMUX_STATE_HEADER:
992 if (gst_adapter_available (rmdemux->adapter) < HEADER_SIZE)
995 data = gst_adapter_peek (rmdemux->adapter, HEADER_SIZE);
997 rmdemux->object_id = RMDEMUX_FOURCC_GET (data + 0);
998 rmdemux->size = RMDEMUX_GUINT32_GET (data + 4) - HEADER_SIZE;
999 rmdemux->object_version = RMDEMUX_GUINT16_GET (data + 8);
1001 /* Sanity-check. We assume that the FOURCC is printable ASCII */
1002 if (!gst_rmdemux_fourcc_isplausible (rmdemux->object_id)) {
1003 /* Failed. Remain in HEADER state, try again... We flush only
1004 * the actual FOURCC, not the entire header, because we could
1005 * need to resync anywhere at all... really, this should never
1007 GST_WARNING_OBJECT (rmdemux, "Bogus looking header, unprintable "
1009 gst_adapter_flush (rmdemux->adapter, 4);
1014 GST_LOG_OBJECT (rmdemux, "header found with object_id=%"
1016 " size=%08x object_version=%d",
1017 GST_FOURCC_ARGS (rmdemux->object_id), rmdemux->size,
1018 rmdemux->object_version);
1020 gst_adapter_flush (rmdemux->adapter, HEADER_SIZE);
1022 switch (rmdemux->object_id) {
1023 case GST_MAKE_FOURCC ('.', 'R', 'M', 'F'):
1024 rmdemux->state = RMDEMUX_STATE_HEADER_RMF;
1026 case GST_MAKE_FOURCC ('P', 'R', 'O', 'P'):
1027 rmdemux->state = RMDEMUX_STATE_HEADER_PROP;
1029 case GST_MAKE_FOURCC ('M', 'D', 'P', 'R'):
1030 rmdemux->state = RMDEMUX_STATE_HEADER_MDPR;
1032 case GST_MAKE_FOURCC ('I', 'N', 'D', 'X'):
1033 rmdemux->state = RMDEMUX_STATE_HEADER_INDX;
1035 case GST_MAKE_FOURCC ('D', 'A', 'T', 'A'):
1036 rmdemux->state = RMDEMUX_STATE_HEADER_DATA;
1038 case GST_MAKE_FOURCC ('C', 'O', 'N', 'T'):
1039 rmdemux->state = RMDEMUX_STATE_HEADER_CONT;
1042 rmdemux->state = RMDEMUX_STATE_HEADER_UNKNOWN;
1047 case RMDEMUX_STATE_HEADER_UNKNOWN:
1049 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1052 GST_WARNING_OBJECT (rmdemux, "Unknown object_id %" GST_FOURCC_FORMAT,
1053 GST_FOURCC_ARGS (rmdemux->object_id));
1055 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1056 rmdemux->state = RMDEMUX_STATE_HEADER;
1059 case RMDEMUX_STATE_HEADER_RMF:
1061 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1064 if ((rmdemux->object_version == 0) || (rmdemux->object_version == 1)) {
1065 data = gst_adapter_peek (rmdemux->adapter, rmdemux->size);
1067 gst_rmdemux_parse__rmf (rmdemux, data, rmdemux->size);
1070 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1071 rmdemux->state = RMDEMUX_STATE_HEADER;
1074 case RMDEMUX_STATE_HEADER_PROP:
1076 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1078 data = gst_adapter_peek (rmdemux->adapter, rmdemux->size);
1080 gst_rmdemux_parse_prop (rmdemux, data, rmdemux->size);
1082 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1083 rmdemux->state = RMDEMUX_STATE_HEADER;
1086 case RMDEMUX_STATE_HEADER_MDPR:
1088 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1090 data = gst_adapter_peek (rmdemux->adapter, rmdemux->size);
1092 gst_rmdemux_parse_mdpr (rmdemux, data, rmdemux->size);
1094 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1095 rmdemux->state = RMDEMUX_STATE_HEADER;
1098 case RMDEMUX_STATE_HEADER_CONT:
1100 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1102 data = gst_adapter_peek (rmdemux->adapter, rmdemux->size);
1104 gst_rmdemux_parse_cont (rmdemux, data, rmdemux->size);
1106 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1107 rmdemux->state = RMDEMUX_STATE_HEADER;
1110 case RMDEMUX_STATE_HEADER_DATA:
1112 /* If we haven't already done so then signal there are no more pads */
1113 if (!rmdemux->have_pads) {
1114 GST_LOG_OBJECT (rmdemux, "no more pads");
1115 gst_element_no_more_pads (GST_ELEMENT (rmdemux));
1116 rmdemux->have_pads = TRUE;
1119 /* The actual header is only 8 bytes */
1120 rmdemux->size = DATA_SIZE;
1121 GST_LOG_OBJECT (rmdemux, "data available %d",
1122 gst_adapter_available (rmdemux->adapter));
1123 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1126 data = gst_adapter_peek (rmdemux->adapter, rmdemux->size);
1128 gst_rmdemux_parse_data (rmdemux, data, rmdemux->size);
1130 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1132 rmdemux->state = RMDEMUX_STATE_DATA_PACKET;
1135 case RMDEMUX_STATE_HEADER_INDX:
1137 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1139 data = gst_adapter_peek (rmdemux->adapter, rmdemux->size);
1141 rmdemux->size = gst_rmdemux_parse_indx (rmdemux, data, rmdemux->size);
1143 /* Only flush the header */
1144 gst_adapter_flush (rmdemux->adapter, HEADER_SIZE);
1146 rmdemux->state = RMDEMUX_STATE_INDX_DATA;
1149 case RMDEMUX_STATE_INDX_DATA:
1151 /* There's not always an data to get... */
1152 if (rmdemux->size > 0) {
1153 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1156 data = gst_adapter_peek (rmdemux->adapter, rmdemux->size);
1158 gst_rmdemux_parse_indx_data (rmdemux, data, rmdemux->size);
1160 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1163 rmdemux->state = RMDEMUX_STATE_HEADER;
1166 case RMDEMUX_STATE_DATA_PACKET:
1168 if (gst_adapter_available (rmdemux->adapter) < 2)
1171 data = gst_adapter_peek (rmdemux->adapter, 2);
1172 version = RMDEMUX_GUINT16_GET (data);
1173 GST_LOG_OBJECT (rmdemux, "Data packet with version=%d", version);
1175 if (version == 0 || version == 1) {
1178 if (gst_adapter_available (rmdemux->adapter) < 4)
1180 data = gst_adapter_peek (rmdemux->adapter, 4);
1182 length = RMDEMUX_GUINT16_GET (data + 2);
1183 GST_LOG_OBJECT (rmdemux, "Got length %d", length);
1186 GST_LOG_OBJECT (rmdemux, "length too small, dropping");
1187 /* Invalid, just drop it */
1188 gst_adapter_flush (rmdemux->adapter, 4);
1192 avail = gst_adapter_available (rmdemux->adapter);
1196 GST_LOG_OBJECT (rmdemux, "we have %u available and we needed %d",
1199 /* flush version and length */
1200 gst_adapter_flush (rmdemux->adapter, 4);
1203 buffer = gst_adapter_take_buffer (rmdemux->adapter, length);
1205 ret = gst_rmdemux_parse_packet (rmdemux, buffer, version);
1206 rmdemux->chunk_index++;
1209 if (rmdemux->chunk_index == rmdemux->n_chunks || length == 0)
1210 rmdemux->state = RMDEMUX_STATE_HEADER;
1213 gst_adapter_flush (rmdemux->adapter, 2);
1215 if (rmdemux->data_offset == 0) {
1216 GST_LOG_OBJECT (rmdemux,
1217 "No further data, internal demux state EOS");
1218 rmdemux->state = RMDEMUX_STATE_EOS;
1220 rmdemux->state = RMDEMUX_STATE_HEADER;
1224 case RMDEMUX_STATE_EOS:
1225 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
1228 GST_WARNING_OBJECT (rmdemux, "Unhandled state %d", rmdemux->state);
1237 static GstRMDemuxStream *
1238 gst_rmdemux_get_stream_by_id (GstRMDemux * rmdemux, int id)
1242 for (cur = rmdemux->streams; cur; cur = cur->next) {
1243 GstRMDemuxStream *stream = cur->data;
1245 if (stream->id == id) {
1254 gst_rmdemux_send_event (GstRMDemux * rmdemux, GstEvent * event)
1258 for (cur = rmdemux->streams; cur; cur = cur->next) {
1259 GstRMDemuxStream *stream = cur->data;
1261 GST_DEBUG_OBJECT (rmdemux, "Pushing %s event on pad %s",
1262 GST_EVENT_TYPE_NAME (event), GST_PAD_NAME (stream->pad));
1264 switch (GST_EVENT_TYPE (event)) {
1265 case GST_EVENT_FLUSH_STOP:
1266 stream->last_ts = -1;
1267 stream->next_ts = -1;
1268 stream->last_seq = -1;
1269 stream->next_seq = -1;
1270 stream->last_flow = GST_FLOW_OK;
1275 gst_event_ref (event);
1276 gst_pad_push_event (stream->pad, event);
1278 gst_event_unref (event);
1282 gst_rmdemux_add_stream (GstRMDemux * rmdemux, GstRMDemuxStream * stream)
1284 GstCaps *stream_caps = NULL;
1285 const gchar *codec_tag = NULL;
1286 gchar *codec_name = NULL;
1289 if (stream->subtype == GST_RMDEMUX_STREAM_VIDEO) {
1290 char *name = g_strdup_printf ("video_%02d", rmdemux->n_video_streams);
1293 gst_pad_new_from_static_template (&gst_rmdemux_videosrc_template, name);
1296 codec_tag = GST_TAG_VIDEO_CODEC;
1298 switch (stream->fourcc) {
1299 case GST_RM_VDO_RV10:
1302 case GST_RM_VDO_RV20:
1305 case GST_RM_VDO_RV30:
1308 case GST_RM_VDO_RV40:
1312 stream_caps = gst_caps_new_simple ("video/x-unknown-fourcc",
1313 "fourcc", GST_TYPE_FOURCC, stream->fourcc, NULL);
1314 GST_WARNING_OBJECT (rmdemux,
1315 "Unknown video FOURCC code \"%" GST_FOURCC_FORMAT "\" (%08x)",
1316 GST_FOURCC_ARGS (stream->fourcc), stream->fourcc);
1321 gst_caps_new_simple ("video/x-pn-realvideo", "rmversion", G_TYPE_INT,
1323 "format", G_TYPE_INT,
1324 (int) stream->format,
1325 "subformat", G_TYPE_INT, (int) stream->subformat, NULL);
1329 gst_caps_set_simple (stream_caps,
1330 "width", G_TYPE_INT, stream->width,
1331 "height", G_TYPE_INT, stream->height,
1332 "framerate", GST_TYPE_FRACTION, stream->framerate_numerator,
1333 stream->framerate_denominator, NULL);
1335 rmdemux->n_video_streams++;
1337 } else if (stream->subtype == GST_RMDEMUX_STREAM_AUDIO) {
1338 char *name = g_strdup_printf ("audio_%02d", rmdemux->n_audio_streams);
1341 gst_pad_new_from_static_template (&gst_rmdemux_audiosrc_template, name);
1342 GST_LOG_OBJECT (rmdemux, "Created audio pad \"%s\"", name);
1345 codec_tag = GST_TAG_AUDIO_CODEC;
1347 switch (stream->fourcc) {
1348 /* Older RealAudio Codecs */
1349 case GST_RM_AUD_14_4:
1353 case GST_RM_AUD_28_8:
1357 /* DolbyNet (Dolby AC3, low bitrate) */
1358 case GST_RM_AUD_DNET:
1360 gst_caps_new_simple ("audio/x-ac3", "rate", G_TYPE_INT,
1361 (int) stream->rate, NULL);
1362 stream->needs_descrambling = TRUE;
1363 stream->subpackets_needed = 1;
1364 stream->subpackets = NULL;
1368 case GST_RM_AUD_RAAC:
1369 case GST_RM_AUD_RACP:
1371 gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT,
1372 (int) 4, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
1373 if (stream->extra_data_size > 0) {
1374 /* strip off an unknown byte in the extra data */
1375 stream->extra_data_size--;
1376 stream->extra_data++;
1378 stream->needs_descrambling = TRUE;
1379 stream->subpackets_needed = 1;
1380 stream->subpackets = NULL;
1384 case GST_RM_AUD_ATRC:
1385 stream_caps = gst_caps_new_simple ("audio/x-vnd.sony.atrac3", NULL);
1386 stream->needs_descrambling = TRUE;
1387 stream->subpackets_needed = stream->height;
1388 stream->subpackets = NULL;
1391 /* RealAudio G2 audio */
1392 case GST_RM_AUD_COOK:
1394 stream->needs_descrambling = TRUE;
1395 stream->subpackets_needed = stream->height;
1396 stream->subpackets = NULL;
1399 /* RALF is lossless */
1400 case GST_RM_AUD_RALF:
1401 GST_DEBUG_OBJECT (rmdemux, "RALF");
1402 stream_caps = gst_caps_new_simple ("audio/x-ralf-mpeg4-generic", NULL);
1405 case GST_RM_AUD_SIPR:
1407 if (stream->flavor > 3) {
1408 GST_WARNING_OBJECT (rmdemux, "bad SIPR flavor %d, freeing it",
1414 GST_DEBUG_OBJECT (rmdemux, "SIPR");
1415 stream_caps = gst_caps_new_simple ("audio/x-sipro", NULL);
1416 stream->needs_descrambling = TRUE;
1417 stream->subpackets_needed = stream->height;
1418 stream->subpackets = NULL;
1419 stream->leaf_size = sipr_subpk_size[stream->flavor];
1424 stream_caps = gst_caps_new_simple ("video/x-unknown-fourcc",
1425 "fourcc", GST_TYPE_FOURCC, stream->fourcc, NULL);
1426 GST_WARNING_OBJECT (rmdemux,
1427 "Unknown audio FOURCC code \"%" GST_FOURCC_FORMAT "\" (%08x)",
1428 GST_FOURCC_ARGS (stream->fourcc), stream->fourcc);
1434 gst_caps_new_simple ("audio/x-pn-realaudio", "raversion", G_TYPE_INT,
1435 (int) version, NULL);
1439 gst_caps_set_simple (stream_caps,
1440 "flavor", G_TYPE_INT, (int) stream->flavor,
1441 "rate", G_TYPE_INT, (int) stream->rate,
1442 "channels", G_TYPE_INT, (int) stream->n_channels,
1443 "width", G_TYPE_INT, (int) stream->sample_width,
1444 "leaf_size", G_TYPE_INT, (int) stream->leaf_size,
1445 "packet_size", G_TYPE_INT, (int) stream->packet_size,
1446 "bitrate", G_TYPE_INT, (int) stream->bitrate,
1447 "height", G_TYPE_INT, (int) stream->height, NULL);
1449 rmdemux->n_audio_streams++;
1451 GST_WARNING_OBJECT (rmdemux, "not adding stream of type %d, freeing it",
1457 GST_PAD_ELEMENT_PRIVATE (stream->pad) = stream;
1458 rmdemux->streams = g_slist_append (rmdemux->streams, stream);
1459 GST_LOG_OBJECT (rmdemux, "n_streams is now %d",
1460 g_slist_length (rmdemux->streams));
1462 GST_LOG ("stream->pad = %p, stream_caps = %" GST_PTR_FORMAT, stream->pad,
1465 if (stream->pad && stream_caps) {
1467 GST_LOG_OBJECT (rmdemux, "%d bytes of extra data for stream %s",
1468 stream->extra_data_size, GST_PAD_NAME (stream->pad));
1470 /* add codec_data if there is any */
1471 if (stream->extra_data_size > 0) {
1474 buffer = gst_buffer_new_and_alloc (stream->extra_data_size);
1475 memcpy (GST_BUFFER_DATA (buffer), stream->extra_data,
1476 stream->extra_data_size);
1478 gst_caps_set_simple (stream_caps, "codec_data", GST_TYPE_BUFFER,
1481 gst_buffer_unref (buffer);
1484 gst_pad_use_fixed_caps (stream->pad);
1486 gst_pad_set_caps (stream->pad, stream_caps);
1487 gst_pad_set_event_function (stream->pad,
1488 GST_DEBUG_FUNCPTR (gst_rmdemux_src_event));
1489 gst_pad_set_query_type_function (stream->pad,
1490 GST_DEBUG_FUNCPTR (gst_rmdemux_src_query_types));
1491 gst_pad_set_query_function (stream->pad,
1492 GST_DEBUG_FUNCPTR (gst_rmdemux_src_query));
1494 GST_DEBUG_OBJECT (rmdemux, "adding pad %s with caps %" GST_PTR_FORMAT
1495 ", stream_id=%d", GST_PAD_NAME (stream->pad), stream_caps, stream->id);
1496 gst_pad_set_active (stream->pad, TRUE);
1497 gst_element_add_pad (GST_ELEMENT_CAST (rmdemux), stream->pad);
1499 codec_name = gst_pb_utils_get_codec_description (stream_caps);
1501 /* save for later, we must send the tags after the newsegment event */
1502 if (codec_tag != NULL && codec_name != NULL) {
1503 if (stream->pending_tags == NULL)
1504 stream->pending_tags = gst_tag_list_new ();
1505 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_KEEP,
1506 codec_tag, codec_name, NULL);
1507 g_free (codec_name);
1514 gst_caps_unref (stream_caps);
1518 re_skip_pascal_string (const guint8 * ptr)
1528 gst_rmdemux_parse__rmf (GstRMDemux * rmdemux, const guint8 * data, int length)
1530 GST_LOG_OBJECT (rmdemux, "file_version: %d", RMDEMUX_GUINT32_GET (data));
1531 GST_LOG_OBJECT (rmdemux, "num_headers: %d", RMDEMUX_GUINT32_GET (data + 4));
1535 gst_rmdemux_parse_prop (GstRMDemux * rmdemux, const guint8 * data, int length)
1537 GST_LOG_OBJECT (rmdemux, "max bitrate: %d", RMDEMUX_GUINT32_GET (data));
1538 GST_LOG_OBJECT (rmdemux, "avg bitrate: %d", RMDEMUX_GUINT32_GET (data + 4));
1539 GST_LOG_OBJECT (rmdemux, "max packet size: %d",
1540 RMDEMUX_GUINT32_GET (data + 8));
1541 rmdemux->avg_packet_size = RMDEMUX_GUINT32_GET (data + 12);
1542 GST_LOG_OBJECT (rmdemux, "avg packet size: %d", rmdemux->avg_packet_size);
1543 rmdemux->num_packets = RMDEMUX_GUINT32_GET (data + 16);
1544 GST_LOG_OBJECT (rmdemux, "number of packets: %d", rmdemux->num_packets);
1546 GST_LOG_OBJECT (rmdemux, "duration: %d", RMDEMUX_GUINT32_GET (data + 20));
1547 rmdemux->duration = RMDEMUX_GUINT32_GET (data + 20) * GST_MSECOND;
1549 GST_LOG_OBJECT (rmdemux, "preroll: %d", RMDEMUX_GUINT32_GET (data + 24));
1550 rmdemux->index_offset = RMDEMUX_GUINT32_GET (data + 28);
1551 GST_LOG_OBJECT (rmdemux, "offset of INDX section: 0x%08x",
1552 rmdemux->index_offset);
1553 rmdemux->data_offset = RMDEMUX_GUINT32_GET (data + 32);
1554 GST_LOG_OBJECT (rmdemux, "offset of DATA section: 0x%08x",
1555 rmdemux->data_offset);
1556 GST_LOG_OBJECT (rmdemux, "n streams: %d", RMDEMUX_GUINT16_GET (data + 36));
1557 GST_LOG_OBJECT (rmdemux, "flags: 0x%04x", RMDEMUX_GUINT16_GET (data + 38));
1561 gst_rmdemux_parse_mdpr (GstRMDemux * rmdemux, const guint8 * data, int length)
1563 GstRMDemuxStream *stream;
1564 char *stream1_type_string;
1565 char *stream2_type_string;
1569 guint32 max_bitrate;
1570 guint32 avg_bitrate;
1572 stream = g_new0 (GstRMDemuxStream, 1);
1574 stream->id = RMDEMUX_GUINT16_GET (data);
1575 stream->index = NULL;
1576 stream->seek_offset = 0;
1577 stream->last_ts = -1;
1578 stream->next_ts = -1;
1579 stream->last_flow = GST_FLOW_OK;
1580 stream->discont = TRUE;
1581 stream->adapter = gst_adapter_new ();
1582 GST_LOG_OBJECT (rmdemux, "stream_number=%d", stream->id);
1584 /* parse the bitrates */
1585 max_bitrate = RMDEMUX_GUINT32_GET (data + 2);
1586 avg_bitrate = RMDEMUX_GUINT32_GET (data + 6);
1587 stream->bitrate = avg_bitrate;
1588 GST_LOG_OBJECT (rmdemux, "Stream max bitrate=%u", max_bitrate);
1589 GST_LOG_OBJECT (rmdemux, "Stream avg bitrate=%u", avg_bitrate);
1590 if (max_bitrate != 0) {
1591 if (stream->pending_tags == NULL)
1592 stream->pending_tags = gst_tag_list_new ();
1593 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_REPLACE,
1594 GST_TAG_MAXIMUM_BITRATE, max_bitrate, NULL);
1596 if (avg_bitrate != 0) {
1597 if (stream->pending_tags == NULL)
1598 stream->pending_tags = gst_tag_list_new ();
1599 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_REPLACE,
1600 GST_TAG_BITRATE, avg_bitrate, NULL);
1604 stream1_type_string = gst_rm_utils_read_string8 (data + offset,
1605 length - offset, &str_len);
1607 stream2_type_string = gst_rm_utils_read_string8 (data + offset,
1608 length - offset, &str_len);
1611 /* stream1_type_string for audio and video stream is a "put_whatever_you_want" field :
1613 * - "[The ]Video/Audio Stream" (File produced by an official Real encoder)
1614 * - "RealVideoPremierePlugIn-VIDEO/AUDIO" (File produced by Abobe Premiere)
1616 * so, we should not rely on it to know which stream type it is
1619 GST_LOG_OBJECT (rmdemux, "stream type: %s", stream1_type_string);
1620 GST_LOG_OBJECT (rmdemux, "MIME type=%s", stream2_type_string);
1622 if (strcmp (stream2_type_string, "video/x-pn-realvideo") == 0) {
1623 stream_type = GST_RMDEMUX_STREAM_VIDEO;
1624 } else if (strcmp (stream2_type_string,
1625 "video/x-pn-multirate-realvideo") == 0) {
1626 stream_type = GST_RMDEMUX_STREAM_VIDEO;
1627 } else if (strcmp (stream2_type_string, "audio/x-pn-realaudio") == 0) {
1628 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1629 } else if (strcmp (stream2_type_string,
1630 "audio/x-pn-multirate-realaudio") == 0) {
1631 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1632 } else if (strcmp (stream2_type_string,
1633 "audio/x-pn-multirate-realaudio-live") == 0) {
1634 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1635 } else if (strcmp (stream2_type_string, "audio/x-ralf-mpeg4-generic") == 0) {
1636 /* Another audio type found in the real testsuite */
1637 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1638 } else if (strcmp (stream1_type_string, "") == 0 &&
1639 strcmp (stream2_type_string, "logical-fileinfo") == 0) {
1640 stream_type = GST_RMDEMUX_STREAM_FILEINFO;
1642 stream_type = GST_RMDEMUX_STREAM_UNKNOWN;
1643 GST_WARNING_OBJECT (rmdemux, "unknown stream type \"%s\",\"%s\"",
1644 stream1_type_string, stream2_type_string);
1646 g_free (stream1_type_string);
1647 g_free (stream2_type_string);
1651 stream->subtype = stream_type;
1652 switch (stream_type) {
1654 case GST_RMDEMUX_STREAM_VIDEO:
1655 /* RV10/RV20/RV30/RV40 => video/x-pn-realvideo, version=1,2,3,4 */
1656 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 8);
1657 stream->width = RMDEMUX_GUINT16_GET (data + offset + 12);
1658 stream->height = RMDEMUX_GUINT16_GET (data + offset + 14);
1659 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 16);
1660 stream->subformat = RMDEMUX_GUINT32_GET (data + offset + 26);
1661 stream->format = RMDEMUX_GUINT32_GET (data + offset + 30);
1662 stream->extra_data_size = length - (offset + 26);
1663 stream->extra_data = (guint8 *) data + offset + 26;
1664 /* Natural way to represent framerates here requires unsigned 32 bit
1665 * numerator, which we don't have. For the nasty case, approximate...
1668 guint32 numerator = RMDEMUX_GUINT16_GET (data + offset + 22) * 65536 +
1669 RMDEMUX_GUINT16_GET (data + offset + 24);
1670 if (numerator > G_MAXINT) {
1671 stream->framerate_numerator = (gint) (numerator >> 1);
1672 stream->framerate_denominator = 32768;
1674 stream->framerate_numerator = (gint) numerator;
1675 stream->framerate_denominator = 65536;
1679 GST_DEBUG_OBJECT (rmdemux,
1680 "Video stream with fourcc=%" GST_FOURCC_FORMAT
1681 " width=%d height=%d rate=%d framerate=%d/%d subformat=%x format=%x extra_data_size=%d",
1682 GST_FOURCC_ARGS (stream->fourcc), stream->width, stream->height,
1683 stream->rate, stream->framerate_numerator,
1684 stream->framerate_denominator, stream->subformat, stream->format,
1685 stream->extra_data_size);
1687 case GST_RMDEMUX_STREAM_AUDIO:{
1688 stream->version = RMDEMUX_GUINT16_GET (data + offset + 4);
1689 GST_INFO ("stream version = %u", stream->version);
1690 switch (stream->version) {
1692 stream->fourcc = GST_RM_AUD_14_4;
1693 stream->packet_size = 20;
1694 stream->rate = 8000;
1695 stream->n_channels = 1;
1696 stream->sample_width = 16;
1698 stream->leaf_size = 0;
1702 stream->flavor = RMDEMUX_GUINT16_GET (data + offset + 22);
1703 stream->packet_size = RMDEMUX_GUINT32_GET (data + offset + 24);
1704 /* stream->frame_size = RMDEMUX_GUINT32_GET (data + offset + 42); */
1705 stream->leaf_size = RMDEMUX_GUINT16_GET (data + offset + 44);
1706 stream->height = RMDEMUX_GUINT16_GET (data + offset + 40);
1707 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 48);
1708 stream->sample_width = RMDEMUX_GUINT16_GET (data + offset + 52);
1709 stream->n_channels = RMDEMUX_GUINT16_GET (data + offset + 54);
1710 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 62);
1711 stream->extra_data_size = RMDEMUX_GUINT32_GET (data + offset + 69);
1712 GST_DEBUG_OBJECT (rmdemux, "%u bytes of extra codec data",
1713 stream->extra_data_size);
1714 if (length - (offset + 73) >= stream->extra_data_size) {
1715 stream->extra_data = (guint8 *) data + offset + 73;
1717 GST_WARNING_OBJECT (rmdemux, "codec data runs beyond MDPR chunk");
1718 stream->extra_data_size = 0;
1722 stream->flavor = RMDEMUX_GUINT16_GET (data + offset + 22);
1723 stream->packet_size = RMDEMUX_GUINT32_GET (data + offset + 24);
1724 /* stream->frame_size = RMDEMUX_GUINT32_GET (data + offset + 42); */
1725 stream->leaf_size = RMDEMUX_GUINT16_GET (data + offset + 44);
1726 stream->height = RMDEMUX_GUINT16_GET (data + offset + 40);
1727 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 54);
1728 stream->sample_width = RMDEMUX_GUINT16_GET (data + offset + 58);
1729 stream->n_channels = RMDEMUX_GUINT16_GET (data + offset + 60);
1730 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 66);
1731 stream->extra_data_size = RMDEMUX_GUINT32_GET (data + offset + 74);
1732 GST_DEBUG_OBJECT (rmdemux, "%u bytes of extra codec data",
1733 stream->extra_data_size);
1734 if (length - (offset + 78) >= stream->extra_data_size) {
1735 stream->extra_data = (guint8 *) data + offset + 78;
1737 GST_WARNING_OBJECT (rmdemux, "codec data runs beyond MDPR chunk");
1738 stream->extra_data_size = 0;
1742 GST_WARNING_OBJECT (rmdemux, "Unhandled audio stream version %d",
1747 /* 14_4, 28_8, cook, dnet, sipr, raac, racp, ralf, atrc */
1748 GST_DEBUG_OBJECT (rmdemux,
1749 "Audio stream with rate=%d sample_width=%d n_channels=%d",
1750 stream->rate, stream->sample_width, stream->n_channels);
1754 case GST_RMDEMUX_STREAM_FILEINFO:
1758 /* Length of this section */
1759 GST_DEBUG_OBJECT (rmdemux, "length2: 0x%08x",
1760 RMDEMUX_GUINT32_GET (data + offset));
1763 /* Unknown : 00 00 00 00 */
1766 /* Number of variables that would follow (loop iterations) */
1767 element_nb = RMDEMUX_GUINT32_GET (data + offset);
1770 while (element_nb) {
1771 /* Category Id : 00 00 00 XX 00 00 */
1775 offset += re_skip_pascal_string (data + offset);
1777 /* Variable Value Type */
1778 /* 00 00 00 00 00 => integer/boolean, preceded by length */
1779 /* 00 00 00 02 00 => pascal string, preceded by length, no trailing \0 */
1782 /* Variable Value */
1783 offset += re_skip_pascal_string (data + offset);
1789 case GST_RMDEMUX_STREAM_UNKNOWN:
1794 gst_rmdemux_add_stream (rmdemux, stream);
1798 gst_rmdemux_parse_indx (GstRMDemux * rmdemux, const guint8 * data, int length)
1803 n = RMDEMUX_GUINT32_GET (data);
1804 id = RMDEMUX_GUINT16_GET (data + 4);
1805 rmdemux->index_offset = RMDEMUX_GUINT32_GET (data + 6);
1807 GST_DEBUG_OBJECT (rmdemux, "Number of indices=%d Stream ID=%d length=%d", n,
1810 /* Point to the next index_stream */
1811 rmdemux->index_stream = gst_rmdemux_get_stream_by_id (rmdemux, id);
1813 /* Return the length of the index */
1818 gst_rmdemux_parse_indx_data (GstRMDemux * rmdemux, const guint8 * data,
1823 GstRMDemuxIndex *index;
1825 /* The number of index records */
1828 if (rmdemux->index_stream == NULL)
1831 /* don't parse the index a second time when operating pull-based and
1832 * reaching the end of the file */
1833 if (rmdemux->index_stream->index_length > 0) {
1834 GST_DEBUG_OBJECT (rmdemux, "Already have an index for this stream");
1838 index = g_malloc (sizeof (GstRMDemuxIndex) * n);
1839 rmdemux->index_stream->index = index;
1840 rmdemux->index_stream->index_length = n;
1842 for (i = 0; i < n; i++) {
1843 index[i].timestamp = RMDEMUX_GUINT32_GET (data + 2) * GST_MSECOND;
1844 index[i].offset = RMDEMUX_GUINT32_GET (data + 6);
1846 GST_DEBUG_OBJECT (rmdemux, "Index found for timestamp=%f (at offset=%x)",
1847 gst_guint64_to_gdouble (index[i].timestamp) / GST_SECOND,
1854 gst_rmdemux_parse_data (GstRMDemux * rmdemux, const guint8 * data, int length)
1856 rmdemux->n_chunks = RMDEMUX_GUINT32_GET (data);
1857 rmdemux->data_offset = RMDEMUX_GUINT32_GET (data + 4);
1858 rmdemux->chunk_index = 0;
1859 GST_DEBUG_OBJECT (rmdemux, "Data chunk found with %d packets "
1860 "(next data at 0x%08x)", rmdemux->n_chunks, rmdemux->data_offset);
1864 gst_rmdemux_parse_cont (GstRMDemux * rmdemux, const guint8 * data, int length)
1868 tags = gst_rm_utils_read_tags (data, length, gst_rm_utils_read_string16);
1870 GST_LOG_OBJECT (rmdemux, "tags: %" GST_PTR_FORMAT, tags);
1872 rmdemux->pending_tags =
1873 gst_tag_list_merge (rmdemux->pending_tags, tags, GST_TAG_MERGE_APPEND);
1876 static GstFlowReturn
1877 gst_rmdemux_combine_flows (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
1882 /* store the value */
1883 stream->last_flow = ret;
1885 /* if it's success we can return the value right away */
1886 if (ret == GST_FLOW_OK)
1889 /* any other error that is not-linked can be returned right
1891 if (ret != GST_FLOW_NOT_LINKED)
1894 for (cur = rmdemux->streams; cur; cur = cur->next) {
1895 GstRMDemuxStream *ostream = cur->data;
1897 ret = ostream->last_flow;
1898 /* some other return value (must be SUCCESS but we can return
1899 * other values as well) */
1900 if (ret != GST_FLOW_NOT_LINKED)
1903 /* if we get here, all other pads were unlinked and we return
1904 * NOT_LINKED then */
1910 gst_rmdemux_stream_clear_cached_subpackets (GstRMDemux * rmdemux,
1911 GstRMDemuxStream * stream)
1913 if (stream->subpackets == NULL || stream->subpackets->len == 0)
1916 GST_DEBUG_OBJECT (rmdemux, "discarding %u previously collected subpackets",
1917 stream->subpackets->len);
1918 g_ptr_array_foreach (stream->subpackets, (GFunc) gst_mini_object_unref, NULL);
1919 g_ptr_array_set_size (stream->subpackets, 0);
1922 static GstFlowReturn
1923 gst_rmdemux_descramble_audio (GstRMDemux * rmdemux, GstRMDemuxStream * stream)
1925 GstFlowReturn ret = GST_FLOW_ERROR;
1927 guint packet_size = stream->packet_size;
1928 guint height = stream->subpackets->len;
1929 guint leaf_size = stream->leaf_size;
1932 g_assert (stream->height == height);
1934 GST_LOG ("packet_size = %u, leaf_size = %u, height= %u", packet_size,
1937 outbuf = gst_buffer_new_and_alloc (height * packet_size);
1938 gst_buffer_set_caps (outbuf, GST_PAD_CAPS (stream->pad));
1940 for (p = 0; p < height; ++p) {
1941 GstBuffer *b = g_ptr_array_index (stream->subpackets, p);
1942 guint8 *b_data = GST_BUFFER_DATA (b);
1945 GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (b);
1947 for (x = 0; x < packet_size / leaf_size; ++x) {
1950 idx = height * x + ((height + 1) / 2) * (p % 2) + (p / 2);
1951 /* GST_LOG ("%3u => %3u", (height * p) + x, idx); */
1952 memcpy (GST_BUFFER_DATA (outbuf) + leaf_size * idx, b_data, leaf_size);
1953 b_data += leaf_size;
1957 /* some decoders, such as realaudiodec, need to be fed in packet units */
1958 for (p = 0; p < height; ++p) {
1961 subbuf = gst_buffer_create_sub (outbuf, p * packet_size, packet_size);
1963 GST_LOG_OBJECT (rmdemux, "pushing buffer timestamp %" GST_TIME_FORMAT,
1964 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (subbuf)));
1966 if (stream->discont) {
1967 GST_BUFFER_FLAG_SET (subbuf, GST_BUFFER_FLAG_DISCONT);
1968 stream->discont = FALSE;
1971 gst_buffer_set_caps (subbuf, GST_PAD_CAPS (stream->pad));
1972 ret = gst_pad_push (stream->pad, subbuf);
1973 if (ret != GST_FLOW_OK)
1977 gst_buffer_unref (outbuf);
1979 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
1984 static GstFlowReturn
1985 gst_rmdemux_descramble_dnet_audio (GstRMDemux * rmdemux,
1986 GstRMDemuxStream * stream)
1990 buf = g_ptr_array_index (stream->subpackets, 0);
1991 g_ptr_array_index (stream->subpackets, 0) = NULL;
1992 g_ptr_array_set_size (stream->subpackets, 0);
1994 buf = gst_rm_utils_descramble_dnet_buffer (buf);
1996 if (stream->discont) {
1997 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
1998 stream->discont = FALSE;
2000 return gst_pad_push (stream->pad, buf);
2003 static GstFlowReturn
2004 gst_rmdemux_descramble_mp4a_audio (GstRMDemux * rmdemux,
2005 GstRMDemuxStream * stream)
2008 GstBuffer *buf, *outbuf;
2009 guint frames, index, i;
2011 GstClockTime timestamp;
2015 buf = g_ptr_array_index (stream->subpackets, 0);
2016 g_ptr_array_index (stream->subpackets, 0) = NULL;
2017 g_ptr_array_set_size (stream->subpackets, 0);
2019 data = GST_BUFFER_DATA (buf);
2020 timestamp = GST_BUFFER_TIMESTAMP (buf);
2022 frames = (data[1] & 0xf0) >> 4;
2023 index = 2 * frames + 2;
2025 for (i = 0; i < frames; i++) {
2026 guint len = (data[i * 2 + 2] << 8) | data[i * 2 + 3];
2028 outbuf = gst_buffer_create_sub (buf, index, len);
2030 GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
2031 gst_buffer_set_caps (outbuf, GST_PAD_CAPS (stream->pad));
2035 if (stream->discont) {
2036 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
2037 stream->discont = FALSE;
2039 res = gst_pad_push (stream->pad, outbuf);
2040 if (res != GST_FLOW_OK)
2043 gst_buffer_unref (buf);
2047 static GstFlowReturn
2048 gst_rmdemux_descramble_sipr_audio (GstRMDemux * rmdemux,
2049 GstRMDemuxStream * stream)
2053 guint packet_size = stream->packet_size;
2054 guint height = stream->subpackets->len;
2057 g_assert (stream->height == height);
2059 GST_LOG ("packet_size = %u, leaf_size = %u, height= %u", packet_size,
2060 stream->leaf_size, height);
2062 outbuf = gst_buffer_new_and_alloc (height * packet_size);
2063 gst_buffer_set_caps (outbuf, GST_PAD_CAPS (stream->pad));
2065 for (p = 0; p < height; ++p) {
2066 GstBuffer *b = g_ptr_array_index (stream->subpackets, p);
2067 guint8 *b_data = GST_BUFFER_DATA (b);
2070 GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (b);
2072 memcpy (GST_BUFFER_DATA (outbuf) + packet_size * p, b_data, packet_size);
2075 GST_LOG_OBJECT (rmdemux, "pushing buffer timestamp %" GST_TIME_FORMAT,
2076 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
2078 if (stream->discont) {
2079 GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
2080 stream->discont = FALSE;
2083 outbuf = gst_rm_utils_descramble_sipr_buffer (outbuf);
2085 gst_buffer_set_caps (outbuf, GST_PAD_CAPS (stream->pad));
2086 ret = gst_pad_push (stream->pad, outbuf);
2088 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
2093 static GstFlowReturn
2094 gst_rmdemux_handle_scrambled_packet (GstRMDemux * rmdemux,
2095 GstRMDemuxStream * stream, GstBuffer * buf, gboolean keyframe)
2099 if (stream->subpackets == NULL)
2100 stream->subpackets = g_ptr_array_sized_new (stream->subpackets_needed);
2102 GST_LOG ("Got subpacket %u/%u, len=%u, key=%d", stream->subpackets->len + 1,
2103 stream->subpackets_needed, GST_BUFFER_SIZE (buf), keyframe);
2105 if (keyframe && stream->subpackets->len > 0) {
2106 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
2109 g_ptr_array_add (stream->subpackets, buf);
2111 if (stream->subpackets->len < stream->subpackets_needed)
2114 g_assert (stream->subpackets->len >= 1);
2116 switch (stream->fourcc) {
2117 case GST_RM_AUD_DNET:
2118 ret = gst_rmdemux_descramble_dnet_audio (rmdemux, stream);
2120 case GST_RM_AUD_COOK:
2121 case GST_RM_AUD_ATRC:
2122 ret = gst_rmdemux_descramble_audio (rmdemux, stream);
2124 case GST_RM_AUD_RAAC:
2125 case GST_RM_AUD_RACP:
2126 ret = gst_rmdemux_descramble_mp4a_audio (rmdemux, stream);
2128 case GST_RM_AUD_SIPR:
2129 ret = gst_rmdemux_descramble_sipr_audio (rmdemux, stream);
2132 g_assert_not_reached ();
2139 gst_rmdemux_fix_timestamp (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
2140 guint8 * data, GstClockTime timestamp)
2144 GstClockTime ts = timestamp;
2146 if (timestamp == GST_CLOCK_TIME_NONE)
2149 /* only adjust when we have a stream with B frames */
2150 if (stream->format < 0x20200002)
2153 /* Fix timestamp. */
2154 switch (stream->fourcc) {
2155 case GST_RM_VDO_RV10:
2157 case GST_RM_VDO_RV20:
2160 * Bit 1- 2: frame type
2162 * Bit 10-22: sequence number
2165 frame_type = (data[0] >> 6) & 0x03;
2166 seq = ((data[1] & 0x7f) << 6) + ((data[2] & 0xfc) >> 2);
2169 case GST_RM_VDO_RV30:
2173 * Bit 3: skip packet if 1
2174 * Bit 4- 5: frame type
2176 * Bit 13-25: sequence number
2179 frame_type = (data[0] >> 3) & 0x03;
2180 seq = ((data[1] & 0x0f) << 9) + (data[2] << 1) + ((data[3] & 0x80) >> 7);
2183 case GST_RM_VDO_RV40:
2186 * Bit 1: skip packet if 1
2187 * Bit 2- 3: frame type
2189 * Bit 14-26: sequence number
2192 frame_type = (data[0] >> 5) & 0x03;
2193 seq = ((data[1] & 0x07) << 10) + (data[2] << 2) + ((data[3] & 0xc0) >> 6);
2197 goto unknown_version;
2200 switch (frame_type) {
2204 GST_LOG_OBJECT (rmdemux, "I frame %d", frame_type);
2206 if (stream->next_ts == -1)
2207 stream->next_ts = timestamp;
2209 timestamp = stream->next_ts;
2210 stream->last_ts = stream->next_ts;
2211 stream->next_ts = ts;
2212 stream->last_seq = stream->next_seq;
2213 stream->next_seq = seq;
2218 GST_LOG_OBJECT (rmdemux, "P frame");
2220 timestamp = stream->last_ts = stream->next_ts;
2221 if (seq < stream->next_seq)
2222 stream->next_ts += (seq + 0x2000 - stream->next_seq) * GST_MSECOND;
2224 stream->next_ts += (seq - stream->next_seq) * GST_MSECOND;
2225 stream->last_seq = stream->next_seq;
2226 stream->next_seq = seq;
2231 GST_LOG_OBJECT (rmdemux, "B frame");
2233 if (seq < stream->last_seq) {
2235 (seq + 0x2000 - stream->last_seq) * GST_MSECOND + stream->last_ts;
2237 timestamp = (seq - stream->last_seq) * GST_MSECOND + stream->last_ts;
2242 goto unknown_frame_type;
2246 GST_LOG_OBJECT (rmdemux,
2247 "timestamp %" GST_TIME_FORMAT " -> %" GST_TIME_FORMAT, GST_TIME_ARGS (ts),
2248 GST_TIME_ARGS (timestamp));
2255 GST_ELEMENT_ERROR (rmdemux, STREAM, DECODE,
2256 ("Unknown version: %i.", stream->version), (NULL));
2257 return GST_FLOW_ERROR;
2262 GST_ELEMENT_ERROR (rmdemux, STREAM, DECODE, ("Unknown frame type %d.",
2263 frame_type), (NULL));
2264 return GST_FLOW_ERROR;
2268 #define PARSE_NUMBER(data, size, number, label) \
2272 number = GST_READ_UINT16_BE (data); \
2273 if (!(number & 0xc000)) { \
2276 number = GST_READ_UINT32_BE (data); \
2286 static GstFlowReturn
2287 gst_rmdemux_parse_video_packet (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
2288 GstBuffer * in, guint offset, guint16 version,
2289 GstClockTime timestamp, gboolean key)
2292 const guint8 *data, *base;
2295 base = GST_BUFFER_DATA (in);
2296 data = base + offset;
2297 size = GST_BUFFER_SIZE (in) - offset;
2298 /* if size <= 2, we want this method to return the same GstFlowReturn as it
2299 * was previously for that given stream. */
2300 ret = stream->last_flow;
2306 guint pkg_subseq = 0, pkg_seqnum = G_MAXUINT;
2307 guint fragment_size;
2308 GstBuffer *fragment;
2310 pkg_header = *data++;
2314 * bit 7: 1=last block in block chain
2315 * bit 6: 1=short header (only one block?)
2317 if ((pkg_header & 0xc0) == 0x40) {
2318 /* skip unknown byte */
2324 if ((pkg_header & 0x40) == 0) {
2325 pkg_subseq = (*data++) & 0x7f;
2332 PARSE_NUMBER (data, size, pkg_length, not_enough_data);
2335 PARSE_NUMBER (data, size, pkg_offset, not_enough_data);
2339 goto not_enough_data;
2341 pkg_seqnum = *data++;
2345 GST_DEBUG_OBJECT (rmdemux,
2346 "seq %d, subseq %d, offset %d, length %d, size %d, header %02x",
2347 pkg_seqnum, pkg_subseq, pkg_offset, pkg_length, size, pkg_header);
2349 /* calc size of fragment */
2350 if ((pkg_header & 0xc0) == 0x80) {
2351 fragment_size = pkg_offset;
2353 if ((pkg_header & 0xc0) == 0)
2354 fragment_size = size;
2356 fragment_size = pkg_length;
2358 GST_DEBUG_OBJECT (rmdemux, "fragment size %d", fragment_size);
2360 /* get the fragment */
2361 fragment = gst_buffer_create_sub (in, data - base, fragment_size);
2363 if (pkg_subseq == 1) {
2364 GST_DEBUG_OBJECT (rmdemux, "start new fragment");
2365 gst_adapter_clear (stream->adapter);
2366 stream->frag_current = 0;
2367 stream->frag_count = 0;
2368 stream->frag_length = pkg_length;
2369 } else if (pkg_subseq == 0) {
2370 GST_DEBUG_OBJECT (rmdemux, "non fragmented packet");
2371 stream->frag_current = 0;
2372 stream->frag_count = 0;
2373 stream->frag_length = fragment_size;
2376 /* put fragment in adapter */
2377 gst_adapter_push (stream->adapter, fragment);
2378 stream->frag_offset[stream->frag_count] = stream->frag_current;
2379 stream->frag_current += fragment_size;
2380 stream->frag_count++;
2382 if (stream->frag_count > MAX_FRAGS)
2383 goto too_many_fragments;
2385 GST_DEBUG_OBJECT (rmdemux, "stored fragment in adapter %d/%d",
2386 stream->frag_current, stream->frag_length);
2388 /* flush fragment when complete */
2389 if (stream->frag_current >= stream->frag_length) {
2395 /* calculate header size, which is:
2396 * 1 byte for the number of fragments - 1
2397 * for each fragment:
2398 * 4 bytes 0x00000001 little endian
2399 * 4 bytes fragment offset
2401 * This is also the matroska header for realvideo, the decoder needs the
2402 * fragment offsets, both in ffmpeg and real .so, so we just give it that
2403 * in front of the data.
2405 header_size = 1 + (8 * (stream->frag_count));
2407 GST_DEBUG_OBJECT (rmdemux,
2408 "fragmented completed. count %d, header_size %u", stream->frag_count,
2411 avail = gst_adapter_available (stream->adapter);
2413 out = gst_buffer_new_and_alloc (header_size + avail);
2414 outdata = GST_BUFFER_DATA (out);
2417 *outdata++ = stream->frag_count - 1;
2418 for (i = 0; i < stream->frag_count; i++) {
2419 GST_WRITE_UINT32_LE (outdata, 0x00000001);
2421 GST_WRITE_UINT32_LE (outdata, stream->frag_offset[i]);
2425 /* copy packet data after the header now */
2426 gst_adapter_copy (stream->adapter, outdata, 0, avail);
2427 gst_adapter_flush (stream->adapter, avail);
2429 stream->frag_current = 0;
2430 stream->frag_count = 0;
2431 stream->frag_length = 0;
2433 gst_buffer_set_caps (out, GST_PAD_CAPS (stream->pad));
2435 if (timestamp != -1) {
2436 if (rmdemux->first_ts != -1 && timestamp > rmdemux->first_ts)
2437 timestamp -= rmdemux->first_ts;
2441 if (rmdemux->base_ts != -1)
2442 timestamp += rmdemux->base_ts;
2445 gst_rmdemux_fix_timestamp (rmdemux, stream, outdata, timestamp);
2447 GST_BUFFER_TIMESTAMP (out) = timestamp;
2449 GST_LOG_OBJECT (rmdemux, "pushing timestamp %" GST_TIME_FORMAT,
2450 GST_TIME_ARGS (timestamp));
2452 if (stream->discont) {
2453 GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DISCONT);
2454 stream->discont = FALSE;
2458 GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DELTA_UNIT);
2461 ret = gst_pad_push (stream->pad, out);
2462 ret = gst_rmdemux_combine_flows (rmdemux, stream, ret);
2463 if (ret != GST_FLOW_OK)
2466 timestamp = GST_CLOCK_TIME_NONE;
2468 data += fragment_size;
2469 size -= fragment_size;
2471 GST_DEBUG_OBJECT (rmdemux, "%d bytes left", size);
2473 gst_buffer_unref (in);
2480 GST_ELEMENT_WARNING (rmdemux, STREAM, DECODE, ("Skipping bad packet."),
2482 gst_buffer_unref (in);
2487 GST_ELEMENT_ERROR (rmdemux, STREAM, DECODE,
2488 ("Got more fragments (%u) than can be handled (%u)",
2489 stream->frag_count, MAX_FRAGS), (NULL));
2490 gst_buffer_unref (in);
2491 return GST_FLOW_ERROR;
2495 static GstFlowReturn
2496 gst_rmdemux_parse_audio_packet (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
2497 GstBuffer * in, guint offset, guint16 version,
2498 GstClockTime timestamp, gboolean key)
2505 data = GST_BUFFER_DATA (in) + offset;
2506 size = GST_BUFFER_SIZE (in) - offset;
2508 buffer = gst_buffer_new_and_alloc (size);
2509 gst_buffer_set_caps (buffer, GST_PAD_CAPS (stream->pad));
2511 memcpy (GST_BUFFER_DATA (buffer), (guint8 *) data, size);
2513 if (rmdemux->first_ts != -1 && timestamp > rmdemux->first_ts)
2514 timestamp -= rmdemux->first_ts;
2518 if (rmdemux->base_ts != -1)
2519 timestamp += rmdemux->base_ts;
2521 GST_BUFFER_TIMESTAMP (buffer) = timestamp;
2523 if (stream->needs_descrambling) {
2524 GST_LOG_OBJECT (rmdemux, "descramble timestamp %" GST_TIME_FORMAT,
2525 GST_TIME_ARGS (timestamp));
2526 ret = gst_rmdemux_handle_scrambled_packet (rmdemux, stream, buffer, key);
2528 GST_LOG_OBJECT (rmdemux,
2529 "Pushing buffer of size %d, timestamp %" GST_TIME_FORMAT "to pad %s",
2530 GST_BUFFER_SIZE (buffer), GST_TIME_ARGS (timestamp),
2531 GST_PAD_NAME (stream->pad));
2533 if (stream->discont) {
2534 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
2535 stream->discont = FALSE;
2537 ret = gst_pad_push (stream->pad, buffer);
2540 gst_buffer_unref (in);
2545 static GstFlowReturn
2546 gst_rmdemux_parse_packet (GstRMDemux * rmdemux, GstBuffer * in, guint16 version)
2549 GstRMDemuxStream *stream;
2551 GstFlowReturn cret, ret;
2552 GstClockTime timestamp;
2554 guint8 *data, *base;
2558 base = data = GST_BUFFER_DATA (in);
2559 size = GST_BUFFER_SIZE (in);
2562 id = RMDEMUX_GUINT16_GET (data);
2564 stream = gst_rmdemux_get_stream_by_id (rmdemux, id);
2565 if (!stream || !stream->pad)
2566 goto unknown_stream;
2568 /* timestamp in Msec */
2569 ts = RMDEMUX_GUINT32_GET (data + 2);
2570 timestamp = ts * GST_MSECOND;
2572 gst_segment_set_last_stop (&rmdemux->segment, GST_FORMAT_TIME, timestamp);
2574 GST_LOG_OBJECT (rmdemux, "Parsing a packet for stream=%d, timestamp=%"
2575 GST_TIME_FORMAT ", size %u, version=%d, ts=%u", id,
2576 GST_TIME_ARGS (timestamp), size, version, ts);
2578 if (rmdemux->first_ts == GST_CLOCK_TIME_NONE) {
2579 GST_DEBUG_OBJECT (rmdemux, "First timestamp: %" GST_TIME_FORMAT,
2580 GST_TIME_ARGS (timestamp));
2581 rmdemux->first_ts = timestamp;
2584 /* skip stream_id and timestamp */
2589 flags = GST_READ_UINT8 (data + 1);
2594 /* version 1 has an extra byte */
2599 key = (flags & 0x02) != 0;
2600 GST_DEBUG_OBJECT (rmdemux, "flags %d, Keyframe %d", flags, key);
2602 if (rmdemux->need_newsegment) {
2605 event = gst_event_new_new_segment (FALSE, rmdemux->segment.rate,
2606 rmdemux->segment.format, rmdemux->segment.start,
2607 rmdemux->segment.stop, rmdemux->segment.time);
2609 GST_DEBUG_OBJECT (rmdemux, "sending NEWSEGMENT event, segment.start= %"
2610 GST_TIME_FORMAT, GST_TIME_ARGS (rmdemux->segment.start));
2612 gst_rmdemux_send_event (rmdemux, event);
2613 rmdemux->need_newsegment = FALSE;
2615 if (rmdemux->pending_tags != NULL) {
2616 gst_element_found_tags (GST_ELEMENT (rmdemux), rmdemux->pending_tags);
2617 rmdemux->pending_tags = NULL;
2621 if (stream->pending_tags != NULL) {
2622 GST_LOG_OBJECT (stream->pad, "tags %" GST_PTR_FORMAT, stream->pending_tags);
2623 gst_element_found_tags_for_pad (GST_ELEMENT_CAST (rmdemux), stream->pad,
2624 stream->pending_tags);
2625 stream->pending_tags = NULL;
2628 if ((rmdemux->offset + size) <= stream->seek_offset) {
2629 GST_DEBUG_OBJECT (rmdemux,
2630 "Stream %d is skipping: seek_offset=%d, offset=%d, size=%u",
2631 stream->id, stream->seek_offset, rmdemux->offset, size);
2636 /* do special headers */
2637 if (stream->subtype == GST_RMDEMUX_STREAM_VIDEO) {
2639 gst_rmdemux_parse_video_packet (rmdemux, stream, in, data - base,
2640 version, timestamp, key);
2641 } else if (stream->subtype == GST_RMDEMUX_STREAM_AUDIO) {
2643 gst_rmdemux_parse_audio_packet (rmdemux, stream, in, data - base,
2644 version, timestamp, key);
2648 cret = gst_rmdemux_combine_flows (rmdemux, stream, ret);
2656 GST_WARNING_OBJECT (rmdemux, "No stream for stream id %d in parsing "
2663 gst_rmdemux_plugin_init (GstPlugin * plugin)
2665 return gst_element_register (plugin, "rmdemux",
2666 GST_RANK_PRIMARY, GST_TYPE_RMDEMUX);