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_%u",
118 GST_STATIC_CAPS_ANY);
120 static GstStaticPadTemplate gst_rmdemux_audiosrc_template =
121 GST_STATIC_PAD_TEMPLATE ("audio_%u",
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_SEGMENT:
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;
355 flowret = gst_pad_pull_range (rmdemux->sinkpad, rmdemux->offset, 4, &buffer);
357 if (flowret != GST_FLOW_OK) {
358 GST_DEBUG_OBJECT (rmdemux, "Failed to pull data at offset %d",
362 /* TODO: Can we also be seeking to a 'DATA' chunk header? Check this.
363 * Also, for the case we currently handle, can we check any more? It's pretty
364 * sucky to not be validating a little more heavily than this... */
365 /* This should now be the start of a data packet header. That begins with
366 * a 2-byte 'version' field, which has to be 0 or 1, then a length. I'm not
367 * certain what values are valid for length, but it must always be at least
368 * 4 bytes, and we can check that it won't take us past our known total size
371 data = gst_buffer_map (buffer, NULL, NULL, GST_MAP_READ);
372 version = RMDEMUX_GUINT16_GET (data);
373 if (version != 0 && version != 1) {
374 GST_DEBUG_OBJECT (rmdemux, "Expected version 0 or 1, got %d",
379 length = RMDEMUX_GUINT16_GET (data + 2);
380 /* TODO: Also check against total stream length */
382 GST_DEBUG_OBJECT (rmdemux, "Expected length >= 4, got %d", (int) length);
385 gst_buffer_unmap (buffer, data, -1);
388 rmdemux->offset += 4;
389 gst_adapter_clear (rmdemux->adapter);
390 gst_adapter_push (rmdemux->adapter, buffer);
392 GST_WARNING_OBJECT (rmdemux, "Failed to validate seek offset at %d",
394 gst_buffer_unref (buffer);
401 find_seek_offset_bytes (GstRMDemux * rmdemux, guint target)
405 gboolean ret = FALSE;
407 for (cur = rmdemux->streams; cur; cur = cur->next) {
408 GstRMDemuxStream *stream = cur->data;
410 /* Search backwards through this stream's index until we find the first
411 * timestamp before our target time */
412 for (i = stream->index_length - 1; i >= 0; i--) {
413 if (stream->index[i].offset <= target) {
414 /* Set the seek_offset for the stream so we don't bother parsing it
415 * until we've passed that point */
416 stream->seek_offset = stream->index[i].offset;
417 rmdemux->offset = stream->index[i].offset;
427 find_seek_offset_time (GstRMDemux * rmdemux, GstClockTime time)
430 gboolean ret = FALSE;
432 GstClockTime earliest = GST_CLOCK_TIME_NONE;
435 for (cur = rmdemux->streams; cur; cur = cur->next, n_stream++) {
436 GstRMDemuxStream *stream = cur->data;
438 /* Search backwards through this stream's index until we find the first
439 * timestamp before our target time */
440 for (i = stream->index_length - 1; i >= 0; i--) {
441 if (stream->index[i].timestamp <= time) {
442 /* Set the seek_offset for the stream so we don't bother parsing it
443 * until we've passed that point */
444 stream->seek_offset = stream->index[i].offset;
446 /* If it's also the earliest timestamp we've seen of all streams, then
449 if (earliest == GST_CLOCK_TIME_NONE ||
450 stream->index[i].timestamp < earliest) {
451 earliest = stream->index[i].timestamp;
452 rmdemux->offset = stream->index[i].offset;
453 GST_DEBUG_OBJECT (rmdemux,
454 "We're looking for %" GST_TIME_FORMAT
455 " and we found that stream %d has the latest index at %"
456 GST_TIME_FORMAT, GST_TIME_ARGS (rmdemux->segment.start), n_stream,
457 GST_TIME_ARGS (earliest));
465 stream->discont = TRUE;
471 gst_rmdemux_perform_seek (GstRMDemux * rmdemux, GstEvent * event)
479 GstSeekType cur_type, stop_type;
484 GST_DEBUG_OBJECT (rmdemux, "seek with event");
486 gst_event_parse_seek (event, &rate, &format, &flags,
487 &cur_type, &cur, &stop_type, &stop);
489 /* we can only seek on time */
490 if (format != GST_FORMAT_TIME) {
491 GST_DEBUG_OBJECT (rmdemux, "can only seek on TIME");
494 /* cannot yet do backwards playback */
496 GST_DEBUG_OBJECT (rmdemux, "can only seek with positive rate, not %lf",
501 GST_DEBUG_OBJECT (rmdemux, "seek without event");
507 GST_DEBUG_OBJECT (rmdemux, "seek, rate %g", rate);
509 flush = flags & GST_SEEK_FLAG_FLUSH;
511 /* first step is to unlock the streaming thread if it is
512 * blocked in a chain call, we do this by starting the flush. */
514 gst_pad_push_event (rmdemux->sinkpad, gst_event_new_flush_start ());
515 gst_rmdemux_send_event (rmdemux, gst_event_new_flush_start ());
517 gst_pad_pause_task (rmdemux->sinkpad);
520 GST_LOG_OBJECT (rmdemux, "Done starting flushes");
522 /* now grab the stream lock so that streaming cannot continue, for
523 * non flushing seeks when the element is in PAUSED this could block
525 GST_PAD_STREAM_LOCK (rmdemux->sinkpad);
527 GST_LOG_OBJECT (rmdemux, "Took streamlock");
530 gst_segment_do_seek (&rmdemux->segment, rate, format, flags,
531 cur_type, cur, stop_type, stop, &update);
534 GST_DEBUG_OBJECT (rmdemux, "segment positions set to %" GST_TIME_FORMAT "-%"
535 GST_TIME_FORMAT, GST_TIME_ARGS (rmdemux->segment.start),
536 GST_TIME_ARGS (rmdemux->segment.stop));
538 /* we need to stop flushing on the sinkpad as we're going to use it
539 * next. We can do this as we have the STREAM lock now. */
540 gst_pad_push_event (rmdemux->sinkpad, gst_event_new_flush_stop (TRUE));
542 GST_LOG_OBJECT (rmdemux, "Pushed FLUSH_STOP event");
544 /* For each stream, find the first index offset equal to or before our seek
545 * target. Of these, find the smallest offset. That's where we seek to.
547 * Then we pull 4 bytes from that offset, and validate that we've seeked to a
548 * what looks like a plausible packet.
549 * If that fails, restart, with the seek target set to one less than the
550 * offset we just tried. If we run out of places to try, treat that as a fatal
553 if (!find_seek_offset_time (rmdemux, rmdemux->segment.position)) {
554 GST_LOG_OBJECT (rmdemux, "Failed to find seek offset by time");
559 GST_LOG_OBJECT (rmdemux, "Validating offset %u", rmdemux->offset);
560 validated = gst_rmdemux_validate_offset (rmdemux);
562 GST_INFO_OBJECT (rmdemux, "Failed to validate offset at %u",
564 if (!find_seek_offset_bytes (rmdemux, rmdemux->offset - 1)) {
568 validated = gst_rmdemux_validate_offset (rmdemux);
571 GST_LOG_OBJECT (rmdemux, "Found final offset. Excellent!");
573 /* now we have a new position, prepare for streaming again */
575 /* Reset the demuxer state */
576 rmdemux->state = RMDEMUX_STATE_DATA_PACKET;
579 gst_rmdemux_send_event (rmdemux, gst_event_new_flush_stop (TRUE));
581 /* must send newsegment event from streaming thread, so just set flag */
582 rmdemux->need_newsegment = TRUE;
584 /* notify start of new segment */
585 if (rmdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
586 gst_element_post_message (GST_ELEMENT_CAST (rmdemux),
587 gst_message_new_segment_start (GST_OBJECT_CAST (rmdemux),
588 GST_FORMAT_TIME, rmdemux->segment.position));
591 /* restart our task since it might have been stopped when we did the
593 gst_pad_start_task (rmdemux->sinkpad, (GstTaskFunction) gst_rmdemux_loop,
598 /* streaming can continue now */
599 GST_PAD_STREAM_UNLOCK (rmdemux->sinkpad);
605 GST_DEBUG_OBJECT (rmdemux, "seek failed");
612 gst_rmdemux_src_query (GstPad * pad, GstQuery * query)
614 gboolean res = FALSE;
617 rmdemux = GST_RMDEMUX (gst_pad_get_parent (pad));
619 switch (GST_QUERY_TYPE (query)) {
620 case GST_QUERY_POSITION:
621 GST_DEBUG_OBJECT (rmdemux, "Position query: no idea from demuxer!");
623 case GST_QUERY_DURATION:{
626 gst_query_parse_duration (query, &fmt, NULL);
627 if (fmt == GST_FORMAT_TIME) {
628 GST_OBJECT_LOCK (rmdemux);
629 if (G_LIKELY (rmdemux->running)) {
630 gst_query_set_duration (query, GST_FORMAT_TIME, rmdemux->duration);
631 GST_DEBUG_OBJECT (rmdemux, "duration set to %" GST_TIME_FORMAT,
632 GST_TIME_ARGS (rmdemux->duration));
635 GST_OBJECT_UNLOCK (rmdemux);
639 case GST_QUERY_SEEKING:{
642 gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
643 if (fmt == GST_FORMAT_TIME) {
644 GST_OBJECT_LOCK (rmdemux);
645 if (G_LIKELY (rmdemux->running)) {
646 gst_query_set_seeking (query, GST_FORMAT_TIME, rmdemux->seekable,
647 0, rmdemux->duration);
650 GST_OBJECT_UNLOCK (rmdemux);
655 res = gst_pad_query_default (pad, query);
659 gst_object_unref (rmdemux);
663 static const GstQueryType *
664 gst_rmdemux_src_query_types (GstPad * pad)
666 static const GstQueryType query_types[] = {
677 gst_rmdemux_reset (GstRMDemux * rmdemux)
681 GST_OBJECT_LOCK (rmdemux);
682 rmdemux->running = FALSE;
683 GST_OBJECT_UNLOCK (rmdemux);
685 for (cur = rmdemux->streams; cur; cur = cur->next) {
686 GstRMDemuxStream *stream = cur->data;
688 g_object_unref (stream->adapter);
689 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
690 gst_element_remove_pad (GST_ELEMENT (rmdemux), stream->pad);
691 if (stream->pending_tags)
692 gst_tag_list_free (stream->pending_tags);
693 if (stream->subpackets)
694 g_ptr_array_free (stream->subpackets, TRUE);
695 g_free (stream->index);
698 g_slist_free (rmdemux->streams);
699 rmdemux->streams = NULL;
700 rmdemux->n_audio_streams = 0;
701 rmdemux->n_video_streams = 0;
703 if (rmdemux->pending_tags != NULL) {
704 gst_tag_list_free (rmdemux->pending_tags);
705 rmdemux->pending_tags = NULL;
708 gst_adapter_clear (rmdemux->adapter);
709 rmdemux->state = RMDEMUX_STATE_HEADER;
710 rmdemux->have_pads = FALSE;
712 gst_segment_init (&rmdemux->segment, GST_FORMAT_UNDEFINED);
713 rmdemux->first_ts = GST_CLOCK_TIME_NONE;
714 rmdemux->base_ts = GST_CLOCK_TIME_NONE;
715 rmdemux->need_newsegment = TRUE;
718 static GstStateChangeReturn
719 gst_rmdemux_change_state (GstElement * element, GstStateChange transition)
721 GstRMDemux *rmdemux = GST_RMDEMUX (element);
722 GstStateChangeReturn res;
724 switch (transition) {
725 case GST_STATE_CHANGE_NULL_TO_READY:
727 case GST_STATE_CHANGE_READY_TO_PAUSED:
728 rmdemux->state = RMDEMUX_STATE_HEADER;
729 rmdemux->have_pads = FALSE;
730 gst_segment_init (&rmdemux->segment, GST_FORMAT_TIME);
731 rmdemux->running = FALSE;
733 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
739 res = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
741 switch (transition) {
742 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
744 case GST_STATE_CHANGE_PAUSED_TO_READY:{
745 gst_rmdemux_reset (rmdemux);
748 case GST_STATE_CHANGE_READY_TO_NULL:
757 /* this function is called when the pad is activated and should start
760 * We check if we can do random access to decide if we work push or
764 gst_rmdemux_sink_activate (GstPad * sinkpad)
770 query = gst_query_new_scheduling ();
772 if (!gst_pad_peer_query (sinkpad, query)) {
773 gst_query_unref (query);
777 gst_query_parse_scheduling (query, &pull_mode, NULL, NULL, NULL, NULL, NULL);
782 GST_DEBUG_OBJECT (sinkpad, "activating pull");
783 return gst_pad_activate_pull (sinkpad, TRUE);
787 GST_DEBUG_OBJECT (sinkpad, "activating push");
788 return gst_pad_activate_push (sinkpad, TRUE);
792 /* this function gets called when we activate ourselves in push mode.
793 * We cannot seek (ourselves) in the stream */
795 gst_rmdemux_sink_activate_push (GstPad * pad, gboolean active)
799 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
801 GST_DEBUG_OBJECT (rmdemux, "activate_push");
803 rmdemux->seekable = FALSE;
808 /* this function gets called when we activate ourselves in pull mode.
809 * We can perform random access to the resource and we start a task
810 * to start reading */
812 gst_rmdemux_sink_activate_pull (GstPad * pad, gboolean active)
816 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
818 GST_DEBUG_OBJECT (rmdemux, "activate_pull");
821 rmdemux->seekable = TRUE;
823 rmdemux->loop_state = RMDEMUX_LOOP_STATE_HEADER;
824 rmdemux->data_offset = G_MAXUINT;
826 return gst_pad_start_task (pad, (GstTaskFunction) gst_rmdemux_loop, pad);
828 return gst_pad_stop_task (pad);
832 /* random access mode - just pass over to our chain function */
834 gst_rmdemux_loop (GstPad * pad)
838 GstFlowReturn ret = GST_FLOW_OK;
841 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
843 GST_LOG_OBJECT (rmdemux, "loop with state=%d and offset=0x%x",
844 rmdemux->loop_state, rmdemux->offset);
846 switch (rmdemux->state) {
847 case RMDEMUX_STATE_HEADER:
850 case RMDEMUX_STATE_HEADER_DATA:
853 case RMDEMUX_STATE_DATA_PACKET:
854 size = rmdemux->avg_packet_size;
856 case RMDEMUX_STATE_EOS:
857 GST_LOG_OBJECT (rmdemux, "At EOS, pausing task");
858 ret = GST_FLOW_UNEXPECTED;
861 GST_LOG_OBJECT (rmdemux, "Default: requires %d bytes (state is %d)",
862 (int) rmdemux->size, rmdemux->state);
863 size = rmdemux->size;
866 ret = gst_pad_pull_range (pad, rmdemux->offset, size, &buffer);
867 if (ret != GST_FLOW_OK) {
868 if (rmdemux->offset == rmdemux->index_offset) {
869 /* The index isn't available so forget about it */
870 rmdemux->loop_state = RMDEMUX_LOOP_STATE_DATA;
871 rmdemux->offset = rmdemux->data_offset;
872 GST_OBJECT_LOCK (rmdemux);
873 rmdemux->running = TRUE;
874 rmdemux->seekable = FALSE;
875 GST_OBJECT_UNLOCK (rmdemux);
878 GST_DEBUG_OBJECT (rmdemux, "Unable to pull %d bytes at offset 0x%08x "
879 "(pull_range returned flow %s, state is %d)", (gint) size,
880 rmdemux->offset, gst_flow_get_name (ret), GST_STATE (rmdemux));
885 /* Defer to the chain function */
886 ret = gst_rmdemux_chain (pad, buffer);
887 if (ret != GST_FLOW_OK) {
888 GST_DEBUG_OBJECT (rmdemux, "Chain flow failed at offset 0x%08x",
893 rmdemux->offset += gst_buffer_get_size (buffer);
895 switch (rmdemux->loop_state) {
896 case RMDEMUX_LOOP_STATE_HEADER:
897 if (rmdemux->offset >= rmdemux->data_offset) {
898 /* It's the end of the header */
899 rmdemux->loop_state = RMDEMUX_LOOP_STATE_INDEX;
900 rmdemux->offset = rmdemux->index_offset;
903 case RMDEMUX_LOOP_STATE_INDEX:
904 if (rmdemux->state == RMDEMUX_STATE_HEADER) {
905 if (rmdemux->index_offset == 0) {
906 /* We've read the last index */
907 rmdemux->loop_state = RMDEMUX_LOOP_STATE_DATA;
908 rmdemux->offset = rmdemux->data_offset;
909 GST_OBJECT_LOCK (rmdemux);
910 rmdemux->running = TRUE;
911 GST_OBJECT_UNLOCK (rmdemux);
913 /* Get the next index */
914 rmdemux->offset = rmdemux->index_offset;
918 case RMDEMUX_LOOP_STATE_DATA:
927 const gchar *reason = gst_flow_get_name (ret);
929 GST_LOG_OBJECT (rmdemux, "pausing task, reason %s", reason);
930 rmdemux->segment_running = FALSE;
931 gst_pad_pause_task (rmdemux->sinkpad);
933 if (ret == GST_FLOW_UNEXPECTED) {
934 /* perform EOS logic */
935 if (rmdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
938 /* for segment playback we need to post when (in stream time)
939 * we stopped, this is either stop (when set) or the duration. */
940 if ((stop = rmdemux->segment.stop) == -1)
941 stop = rmdemux->segment.duration;
943 GST_LOG_OBJECT (rmdemux, "Sending segment done, at end of segment");
944 gst_element_post_message (GST_ELEMENT (rmdemux),
945 gst_message_new_segment_done (GST_OBJECT (rmdemux),
946 GST_FORMAT_TIME, stop));
948 /* normal playback, send EOS to all linked pads */
949 GST_LOG_OBJECT (rmdemux, "Sending EOS, at end of stream");
950 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
952 } else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED) {
953 GST_ELEMENT_ERROR (rmdemux, STREAM, FAILED,
954 (NULL), ("stream stopped, reason %s", reason));
955 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
962 gst_rmdemux_fourcc_isplausible (guint32 fourcc)
966 for (i = 0; i < 4; i++) {
967 if (!isprint ((int) ((unsigned char *) (&fourcc))[i])) {
975 gst_rmdemux_chain (GstPad * pad, GstBuffer * buffer)
977 GstFlowReturn ret = GST_FLOW_OK;
982 GstRMDemux *rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
984 if (rmdemux->base_ts == -1) {
985 rmdemux->base_ts = GST_BUFFER_TIMESTAMP (buffer);
986 GST_LOG_OBJECT (rmdemux, "base_ts %" GST_TIME_FORMAT,
987 GST_TIME_ARGS (rmdemux->base_ts));
990 gst_adapter_push (rmdemux->adapter, buffer);
992 GST_LOG_OBJECT (rmdemux, "Chaining buffer of size %d",
993 gst_buffer_get_size (buffer));
996 avail = gst_adapter_available (rmdemux->adapter);
998 GST_LOG_OBJECT (rmdemux, "looping in chain, avail %u", avail);
999 switch (rmdemux->state) {
1000 case RMDEMUX_STATE_HEADER:
1002 if (gst_adapter_available (rmdemux->adapter) < HEADER_SIZE)
1005 data = gst_adapter_map (rmdemux->adapter, HEADER_SIZE);
1007 rmdemux->object_id = RMDEMUX_FOURCC_GET (data + 0);
1008 rmdemux->size = RMDEMUX_GUINT32_GET (data + 4) - HEADER_SIZE;
1009 rmdemux->object_version = RMDEMUX_GUINT16_GET (data + 8);
1011 /* Sanity-check. We assume that the FOURCC is printable ASCII */
1012 if (!gst_rmdemux_fourcc_isplausible (rmdemux->object_id)) {
1013 /* Failed. Remain in HEADER state, try again... We flush only
1014 * the actual FOURCC, not the entire header, because we could
1015 * need to resync anywhere at all... really, this should never
1017 GST_WARNING_OBJECT (rmdemux, "Bogus looking header, unprintable "
1019 gst_adapter_unmap (rmdemux->adapter, 4);
1024 GST_LOG_OBJECT (rmdemux, "header found with object_id=%"
1026 " size=%08x object_version=%d",
1027 GST_FOURCC_ARGS (rmdemux->object_id), rmdemux->size,
1028 rmdemux->object_version);
1030 gst_adapter_unmap (rmdemux->adapter, HEADER_SIZE);
1032 switch (rmdemux->object_id) {
1033 case GST_MAKE_FOURCC ('.', 'R', 'M', 'F'):
1034 rmdemux->state = RMDEMUX_STATE_HEADER_RMF;
1036 case GST_MAKE_FOURCC ('P', 'R', 'O', 'P'):
1037 rmdemux->state = RMDEMUX_STATE_HEADER_PROP;
1039 case GST_MAKE_FOURCC ('M', 'D', 'P', 'R'):
1040 rmdemux->state = RMDEMUX_STATE_HEADER_MDPR;
1042 case GST_MAKE_FOURCC ('I', 'N', 'D', 'X'):
1043 rmdemux->state = RMDEMUX_STATE_HEADER_INDX;
1045 case GST_MAKE_FOURCC ('D', 'A', 'T', 'A'):
1046 rmdemux->state = RMDEMUX_STATE_HEADER_DATA;
1048 case GST_MAKE_FOURCC ('C', 'O', 'N', 'T'):
1049 rmdemux->state = RMDEMUX_STATE_HEADER_CONT;
1052 rmdemux->state = RMDEMUX_STATE_HEADER_UNKNOWN;
1057 case RMDEMUX_STATE_HEADER_UNKNOWN:
1059 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1062 GST_WARNING_OBJECT (rmdemux, "Unknown object_id %" GST_FOURCC_FORMAT,
1063 GST_FOURCC_ARGS (rmdemux->object_id));
1065 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1066 rmdemux->state = RMDEMUX_STATE_HEADER;
1069 case RMDEMUX_STATE_HEADER_RMF:
1071 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1074 if ((rmdemux->object_version == 0) || (rmdemux->object_version == 1)) {
1075 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1076 gst_rmdemux_parse__rmf (rmdemux, data, rmdemux->size);
1077 gst_adapter_unmap (rmdemux->adapter, rmdemux->size);
1079 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1081 rmdemux->state = RMDEMUX_STATE_HEADER;
1084 case RMDEMUX_STATE_HEADER_PROP:
1086 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1089 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1090 gst_rmdemux_parse_prop (rmdemux, data, rmdemux->size);
1091 gst_adapter_unmap (rmdemux->adapter, rmdemux->size);
1093 rmdemux->state = RMDEMUX_STATE_HEADER;
1096 case RMDEMUX_STATE_HEADER_MDPR:
1098 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1101 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1102 gst_rmdemux_parse_mdpr (rmdemux, data, rmdemux->size);
1103 gst_adapter_unmap (rmdemux->adapter, rmdemux->size);
1105 rmdemux->state = RMDEMUX_STATE_HEADER;
1108 case RMDEMUX_STATE_HEADER_CONT:
1110 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1113 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1114 gst_rmdemux_parse_cont (rmdemux, data, rmdemux->size);
1115 gst_adapter_unmap (rmdemux->adapter, rmdemux->size);
1117 rmdemux->state = RMDEMUX_STATE_HEADER;
1120 case RMDEMUX_STATE_HEADER_DATA:
1122 /* If we haven't already done so then signal there are no more pads */
1123 if (!rmdemux->have_pads) {
1124 GST_LOG_OBJECT (rmdemux, "no more pads");
1125 gst_element_no_more_pads (GST_ELEMENT (rmdemux));
1126 rmdemux->have_pads = TRUE;
1129 /* The actual header is only 8 bytes */
1130 rmdemux->size = DATA_SIZE;
1131 GST_LOG_OBJECT (rmdemux, "data available %d",
1132 gst_adapter_available (rmdemux->adapter));
1133 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1136 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1137 gst_rmdemux_parse_data (rmdemux, data, rmdemux->size);
1138 gst_adapter_unmap (rmdemux->adapter, rmdemux->size);
1140 rmdemux->state = RMDEMUX_STATE_DATA_PACKET;
1143 case RMDEMUX_STATE_HEADER_INDX:
1145 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1148 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1149 rmdemux->size = gst_rmdemux_parse_indx (rmdemux, data, rmdemux->size);
1150 /* Only flush the header */
1151 gst_adapter_unmap (rmdemux->adapter, HEADER_SIZE);
1153 rmdemux->state = RMDEMUX_STATE_INDX_DATA;
1156 case RMDEMUX_STATE_INDX_DATA:
1158 /* There's not always an data to get... */
1159 if (rmdemux->size > 0) {
1160 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1163 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1164 gst_rmdemux_parse_indx_data (rmdemux, data, rmdemux->size);
1165 gst_adapter_unmap (rmdemux->adapter, rmdemux->size);
1168 rmdemux->state = RMDEMUX_STATE_HEADER;
1171 case RMDEMUX_STATE_DATA_PACKET:
1175 if (gst_adapter_available (rmdemux->adapter) < 2)
1178 gst_adapter_copy (rmdemux->adapter, header, 0, 2);
1179 version = RMDEMUX_GUINT16_GET (header);
1180 GST_LOG_OBJECT (rmdemux, "Data packet with version=%d", version);
1182 if (version == 0 || version == 1) {
1185 if (gst_adapter_available (rmdemux->adapter) < 4)
1188 gst_adapter_copy (rmdemux->adapter, header, 0, 4);
1190 length = RMDEMUX_GUINT16_GET (header + 2);
1191 GST_LOG_OBJECT (rmdemux, "Got length %d", length);
1194 GST_LOG_OBJECT (rmdemux, "length too small, dropping");
1195 /* Invalid, just drop it */
1196 gst_adapter_flush (rmdemux->adapter, 4);
1200 avail = gst_adapter_available (rmdemux->adapter);
1204 GST_LOG_OBJECT (rmdemux, "we have %u available and we needed %d",
1207 /* flush version and length */
1208 gst_adapter_flush (rmdemux->adapter, 4);
1211 buffer = gst_adapter_take_buffer (rmdemux->adapter, length);
1213 ret = gst_rmdemux_parse_packet (rmdemux, buffer, version);
1214 rmdemux->chunk_index++;
1217 if (rmdemux->chunk_index == rmdemux->n_chunks || length == 0)
1218 rmdemux->state = RMDEMUX_STATE_HEADER;
1221 gst_adapter_flush (rmdemux->adapter, 2);
1223 if (rmdemux->data_offset == 0) {
1224 GST_LOG_OBJECT (rmdemux,
1225 "No further data, internal demux state EOS");
1226 rmdemux->state = RMDEMUX_STATE_EOS;
1228 rmdemux->state = RMDEMUX_STATE_HEADER;
1232 case RMDEMUX_STATE_EOS:
1233 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
1236 GST_WARNING_OBJECT (rmdemux, "Unhandled state %d", rmdemux->state);
1245 static GstRMDemuxStream *
1246 gst_rmdemux_get_stream_by_id (GstRMDemux * rmdemux, int id)
1250 for (cur = rmdemux->streams; cur; cur = cur->next) {
1251 GstRMDemuxStream *stream = cur->data;
1253 if (stream->id == id) {
1262 gst_rmdemux_send_event (GstRMDemux * rmdemux, GstEvent * event)
1266 for (cur = rmdemux->streams; cur; cur = cur->next) {
1267 GstRMDemuxStream *stream = cur->data;
1269 GST_DEBUG_OBJECT (rmdemux, "Pushing %s event on pad %s",
1270 GST_EVENT_TYPE_NAME (event), GST_PAD_NAME (stream->pad));
1272 switch (GST_EVENT_TYPE (event)) {
1273 case GST_EVENT_FLUSH_STOP:
1274 stream->last_ts = -1;
1275 stream->next_ts = -1;
1276 stream->last_seq = -1;
1277 stream->next_seq = -1;
1278 stream->last_flow = GST_FLOW_OK;
1283 gst_event_ref (event);
1284 gst_pad_push_event (stream->pad, event);
1286 gst_event_unref (event);
1290 gst_rmdemux_add_stream (GstRMDemux * rmdemux, GstRMDemuxStream * stream)
1292 GstCaps *stream_caps = NULL;
1293 const gchar *codec_tag = NULL;
1294 gchar *codec_name = NULL;
1297 if (stream->subtype == GST_RMDEMUX_STREAM_VIDEO) {
1298 char *name = g_strdup_printf ("video_%u", rmdemux->n_video_streams);
1301 gst_pad_new_from_static_template (&gst_rmdemux_videosrc_template, name);
1304 codec_tag = GST_TAG_VIDEO_CODEC;
1306 switch (stream->fourcc) {
1307 case GST_RM_VDO_RV10:
1310 case GST_RM_VDO_RV20:
1313 case GST_RM_VDO_RV30:
1316 case GST_RM_VDO_RV40:
1320 stream_caps = gst_caps_new_simple ("video/x-unknown-fourcc",
1321 "fourcc", G_TYPE_UINT, stream->fourcc, NULL);
1322 GST_WARNING_OBJECT (rmdemux,
1323 "Unknown video FOURCC code \"%" GST_FOURCC_FORMAT "\" (%08x)",
1324 GST_FOURCC_ARGS (stream->fourcc), stream->fourcc);
1329 gst_caps_new_simple ("video/x-pn-realvideo", "rmversion", G_TYPE_INT,
1331 "format", G_TYPE_INT,
1332 (int) stream->format,
1333 "subformat", G_TYPE_INT, (int) stream->subformat, NULL);
1337 gst_caps_set_simple (stream_caps,
1338 "width", G_TYPE_INT, stream->width,
1339 "height", G_TYPE_INT, stream->height,
1340 "framerate", GST_TYPE_FRACTION, stream->framerate_numerator,
1341 stream->framerate_denominator, NULL);
1343 rmdemux->n_video_streams++;
1345 } else if (stream->subtype == GST_RMDEMUX_STREAM_AUDIO) {
1346 char *name = g_strdup_printf ("audio_%u", rmdemux->n_audio_streams);
1349 gst_pad_new_from_static_template (&gst_rmdemux_audiosrc_template, name);
1350 GST_LOG_OBJECT (rmdemux, "Created audio pad \"%s\"", name);
1353 codec_tag = GST_TAG_AUDIO_CODEC;
1355 switch (stream->fourcc) {
1356 /* Older RealAudio Codecs */
1357 case GST_RM_AUD_14_4:
1361 case GST_RM_AUD_28_8:
1365 /* DolbyNet (Dolby AC3, low bitrate) */
1366 case GST_RM_AUD_DNET:
1368 gst_caps_new_simple ("audio/x-ac3", "rate", G_TYPE_INT,
1369 (int) stream->rate, NULL);
1370 stream->needs_descrambling = TRUE;
1371 stream->subpackets_needed = 1;
1372 stream->subpackets = NULL;
1376 case GST_RM_AUD_RAAC:
1377 case GST_RM_AUD_RACP:
1379 gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT,
1380 (int) 4, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
1381 if (stream->extra_data_size > 0) {
1382 /* strip off an unknown byte in the extra data */
1383 stream->extra_data_size--;
1384 stream->extra_data++;
1386 stream->needs_descrambling = TRUE;
1387 stream->subpackets_needed = 1;
1388 stream->subpackets = NULL;
1392 case GST_RM_AUD_ATRC:
1393 stream_caps = gst_caps_new_simple ("audio/x-vnd.sony.atrac3", NULL);
1394 stream->needs_descrambling = TRUE;
1395 stream->subpackets_needed = stream->height;
1396 stream->subpackets = NULL;
1399 /* RealAudio G2 audio */
1400 case GST_RM_AUD_COOK:
1402 stream->needs_descrambling = TRUE;
1403 stream->subpackets_needed = stream->height;
1404 stream->subpackets = NULL;
1407 /* RALF is lossless */
1408 case GST_RM_AUD_RALF:
1409 GST_DEBUG_OBJECT (rmdemux, "RALF");
1410 stream_caps = gst_caps_new_simple ("audio/x-ralf-mpeg4-generic", NULL);
1413 case GST_RM_AUD_SIPR:
1415 if (stream->flavor > 3) {
1416 GST_WARNING_OBJECT (rmdemux, "bad SIPR flavor %d, freeing it",
1422 GST_DEBUG_OBJECT (rmdemux, "SIPR");
1423 stream_caps = gst_caps_new_simple ("audio/x-sipro", NULL);
1424 stream->needs_descrambling = TRUE;
1425 stream->subpackets_needed = stream->height;
1426 stream->subpackets = NULL;
1427 stream->leaf_size = sipr_subpk_size[stream->flavor];
1432 stream_caps = gst_caps_new_simple ("video/x-unknown-fourcc",
1433 "fourcc", G_TYPE_UINT, stream->fourcc, NULL);
1434 GST_WARNING_OBJECT (rmdemux,
1435 "Unknown audio FOURCC code \"%" GST_FOURCC_FORMAT "\" (%08x)",
1436 GST_FOURCC_ARGS (stream->fourcc), stream->fourcc);
1442 gst_caps_new_simple ("audio/x-pn-realaudio", "raversion", G_TYPE_INT,
1443 (int) version, NULL);
1447 gst_caps_set_simple (stream_caps,
1448 "flavor", G_TYPE_INT, (int) stream->flavor,
1449 "rate", G_TYPE_INT, (int) stream->rate,
1450 "channels", G_TYPE_INT, (int) stream->n_channels,
1451 "width", G_TYPE_INT, (int) stream->sample_width,
1452 "leaf_size", G_TYPE_INT, (int) stream->leaf_size,
1453 "packet_size", G_TYPE_INT, (int) stream->packet_size,
1454 "bitrate", G_TYPE_INT, (int) stream->bitrate,
1455 "height", G_TYPE_INT, (int) stream->height, NULL);
1457 rmdemux->n_audio_streams++;
1459 GST_WARNING_OBJECT (rmdemux, "not adding stream of type %d, freeing it",
1465 GST_PAD_ELEMENT_PRIVATE (stream->pad) = stream;
1466 rmdemux->streams = g_slist_append (rmdemux->streams, stream);
1467 GST_LOG_OBJECT (rmdemux, "n_streams is now %d",
1468 g_slist_length (rmdemux->streams));
1470 GST_LOG ("stream->pad = %p, stream_caps = %" GST_PTR_FORMAT, stream->pad,
1473 if (stream->pad && stream_caps) {
1475 GST_LOG_OBJECT (rmdemux, "%d bytes of extra data for stream %s",
1476 stream->extra_data_size, GST_PAD_NAME (stream->pad));
1478 /* add codec_data if there is any */
1479 if (stream->extra_data_size > 0) {
1482 buffer = gst_buffer_new_and_alloc (stream->extra_data_size);
1483 gst_buffer_fill (buffer, 0, stream->extra_data, stream->extra_data_size);
1485 gst_caps_set_simple (stream_caps, "codec_data", GST_TYPE_BUFFER,
1488 gst_buffer_unref (buffer);
1491 gst_pad_use_fixed_caps (stream->pad);
1493 gst_pad_set_caps (stream->pad, stream_caps);
1494 gst_pad_set_event_function (stream->pad,
1495 GST_DEBUG_FUNCPTR (gst_rmdemux_src_event));
1496 gst_pad_set_query_type_function (stream->pad,
1497 GST_DEBUG_FUNCPTR (gst_rmdemux_src_query_types));
1498 gst_pad_set_query_function (stream->pad,
1499 GST_DEBUG_FUNCPTR (gst_rmdemux_src_query));
1501 GST_DEBUG_OBJECT (rmdemux, "adding pad %s with caps %" GST_PTR_FORMAT
1502 ", stream_id=%d", GST_PAD_NAME (stream->pad), stream_caps, stream->id);
1503 gst_pad_set_active (stream->pad, TRUE);
1504 gst_element_add_pad (GST_ELEMENT_CAST (rmdemux), stream->pad);
1506 codec_name = gst_pb_utils_get_codec_description (stream_caps);
1508 /* save for later, we must send the tags after the newsegment event */
1509 if (codec_tag != NULL && codec_name != NULL) {
1510 if (stream->pending_tags == NULL)
1511 stream->pending_tags = gst_tag_list_new ();
1512 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_KEEP,
1513 codec_tag, codec_name, NULL);
1514 g_free (codec_name);
1521 gst_caps_unref (stream_caps);
1525 re_skip_pascal_string (const guint8 * ptr)
1535 gst_rmdemux_parse__rmf (GstRMDemux * rmdemux, const guint8 * data, int length)
1537 GST_LOG_OBJECT (rmdemux, "file_version: %d", RMDEMUX_GUINT32_GET (data));
1538 GST_LOG_OBJECT (rmdemux, "num_headers: %d", RMDEMUX_GUINT32_GET (data + 4));
1542 gst_rmdemux_parse_prop (GstRMDemux * rmdemux, const guint8 * data, int length)
1544 GST_LOG_OBJECT (rmdemux, "max bitrate: %d", RMDEMUX_GUINT32_GET (data));
1545 GST_LOG_OBJECT (rmdemux, "avg bitrate: %d", RMDEMUX_GUINT32_GET (data + 4));
1546 GST_LOG_OBJECT (rmdemux, "max packet size: %d",
1547 RMDEMUX_GUINT32_GET (data + 8));
1548 rmdemux->avg_packet_size = RMDEMUX_GUINT32_GET (data + 12);
1549 GST_LOG_OBJECT (rmdemux, "avg packet size: %d", rmdemux->avg_packet_size);
1550 rmdemux->num_packets = RMDEMUX_GUINT32_GET (data + 16);
1551 GST_LOG_OBJECT (rmdemux, "number of packets: %d", rmdemux->num_packets);
1553 GST_LOG_OBJECT (rmdemux, "duration: %d", RMDEMUX_GUINT32_GET (data + 20));
1554 rmdemux->duration = RMDEMUX_GUINT32_GET (data + 20) * GST_MSECOND;
1556 GST_LOG_OBJECT (rmdemux, "preroll: %d", RMDEMUX_GUINT32_GET (data + 24));
1557 rmdemux->index_offset = RMDEMUX_GUINT32_GET (data + 28);
1558 GST_LOG_OBJECT (rmdemux, "offset of INDX section: 0x%08x",
1559 rmdemux->index_offset);
1560 rmdemux->data_offset = RMDEMUX_GUINT32_GET (data + 32);
1561 GST_LOG_OBJECT (rmdemux, "offset of DATA section: 0x%08x",
1562 rmdemux->data_offset);
1563 GST_LOG_OBJECT (rmdemux, "n streams: %d", RMDEMUX_GUINT16_GET (data + 36));
1564 GST_LOG_OBJECT (rmdemux, "flags: 0x%04x", RMDEMUX_GUINT16_GET (data + 38));
1568 gst_rmdemux_parse_mdpr (GstRMDemux * rmdemux, const guint8 * data, int length)
1570 GstRMDemuxStream *stream;
1571 char *stream1_type_string;
1572 char *stream2_type_string;
1576 guint32 max_bitrate;
1577 guint32 avg_bitrate;
1579 stream = g_new0 (GstRMDemuxStream, 1);
1581 stream->id = RMDEMUX_GUINT16_GET (data);
1582 stream->index = NULL;
1583 stream->seek_offset = 0;
1584 stream->last_ts = -1;
1585 stream->next_ts = -1;
1586 stream->last_flow = GST_FLOW_OK;
1587 stream->discont = TRUE;
1588 stream->adapter = gst_adapter_new ();
1589 GST_LOG_OBJECT (rmdemux, "stream_number=%d", stream->id);
1591 /* parse the bitrates */
1592 max_bitrate = RMDEMUX_GUINT32_GET (data + 2);
1593 avg_bitrate = RMDEMUX_GUINT32_GET (data + 6);
1594 stream->bitrate = avg_bitrate;
1595 GST_LOG_OBJECT (rmdemux, "Stream max bitrate=%u", max_bitrate);
1596 GST_LOG_OBJECT (rmdemux, "Stream avg bitrate=%u", avg_bitrate);
1597 if (max_bitrate != 0) {
1598 if (stream->pending_tags == NULL)
1599 stream->pending_tags = gst_tag_list_new ();
1600 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_REPLACE,
1601 GST_TAG_MAXIMUM_BITRATE, max_bitrate, NULL);
1603 if (avg_bitrate != 0) {
1604 if (stream->pending_tags == NULL)
1605 stream->pending_tags = gst_tag_list_new ();
1606 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_REPLACE,
1607 GST_TAG_BITRATE, avg_bitrate, NULL);
1611 stream1_type_string = gst_rm_utils_read_string8 (data + offset,
1612 length - offset, &str_len);
1614 stream2_type_string = gst_rm_utils_read_string8 (data + offset,
1615 length - offset, &str_len);
1618 /* stream1_type_string for audio and video stream is a "put_whatever_you_want" field :
1620 * - "[The ]Video/Audio Stream" (File produced by an official Real encoder)
1621 * - "RealVideoPremierePlugIn-VIDEO/AUDIO" (File produced by Abobe Premiere)
1623 * so, we should not rely on it to know which stream type it is
1626 GST_LOG_OBJECT (rmdemux, "stream type: %s", stream1_type_string);
1627 GST_LOG_OBJECT (rmdemux, "MIME type=%s", stream2_type_string);
1629 if (strcmp (stream2_type_string, "video/x-pn-realvideo") == 0) {
1630 stream_type = GST_RMDEMUX_STREAM_VIDEO;
1631 } else if (strcmp (stream2_type_string,
1632 "video/x-pn-multirate-realvideo") == 0) {
1633 stream_type = GST_RMDEMUX_STREAM_VIDEO;
1634 } else if (strcmp (stream2_type_string, "audio/x-pn-realaudio") == 0) {
1635 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1636 } else if (strcmp (stream2_type_string,
1637 "audio/x-pn-multirate-realaudio") == 0) {
1638 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1639 } else if (strcmp (stream2_type_string,
1640 "audio/x-pn-multirate-realaudio-live") == 0) {
1641 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1642 } else if (strcmp (stream2_type_string, "audio/x-ralf-mpeg4-generic") == 0) {
1643 /* Another audio type found in the real testsuite */
1644 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1645 } else if (strcmp (stream1_type_string, "") == 0 &&
1646 strcmp (stream2_type_string, "logical-fileinfo") == 0) {
1647 stream_type = GST_RMDEMUX_STREAM_FILEINFO;
1649 stream_type = GST_RMDEMUX_STREAM_UNKNOWN;
1650 GST_WARNING_OBJECT (rmdemux, "unknown stream type \"%s\",\"%s\"",
1651 stream1_type_string, stream2_type_string);
1653 g_free (stream1_type_string);
1654 g_free (stream2_type_string);
1658 stream->subtype = stream_type;
1659 switch (stream_type) {
1661 case GST_RMDEMUX_STREAM_VIDEO:
1662 /* RV10/RV20/RV30/RV40 => video/x-pn-realvideo, version=1,2,3,4 */
1663 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 8);
1664 stream->width = RMDEMUX_GUINT16_GET (data + offset + 12);
1665 stream->height = RMDEMUX_GUINT16_GET (data + offset + 14);
1666 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 16);
1667 stream->subformat = RMDEMUX_GUINT32_GET (data + offset + 26);
1668 stream->format = RMDEMUX_GUINT32_GET (data + offset + 30);
1669 stream->extra_data_size = length - (offset + 26);
1670 stream->extra_data = (guint8 *) data + offset + 26;
1671 /* Natural way to represent framerates here requires unsigned 32 bit
1672 * numerator, which we don't have. For the nasty case, approximate...
1675 guint32 numerator = RMDEMUX_GUINT16_GET (data + offset + 22) * 65536 +
1676 RMDEMUX_GUINT16_GET (data + offset + 24);
1677 if (numerator > G_MAXINT) {
1678 stream->framerate_numerator = (gint) (numerator >> 1);
1679 stream->framerate_denominator = 32768;
1681 stream->framerate_numerator = (gint) numerator;
1682 stream->framerate_denominator = 65536;
1686 GST_DEBUG_OBJECT (rmdemux,
1687 "Video stream with fourcc=%" GST_FOURCC_FORMAT
1688 " width=%d height=%d rate=%d framerate=%d/%d subformat=%x format=%x extra_data_size=%d",
1689 GST_FOURCC_ARGS (stream->fourcc), stream->width, stream->height,
1690 stream->rate, stream->framerate_numerator,
1691 stream->framerate_denominator, stream->subformat, stream->format,
1692 stream->extra_data_size);
1694 case GST_RMDEMUX_STREAM_AUDIO:{
1695 stream->version = RMDEMUX_GUINT16_GET (data + offset + 4);
1696 GST_INFO ("stream version = %u", stream->version);
1697 switch (stream->version) {
1699 stream->fourcc = GST_RM_AUD_14_4;
1700 stream->packet_size = 20;
1701 stream->rate = 8000;
1702 stream->n_channels = 1;
1703 stream->sample_width = 16;
1705 stream->leaf_size = 0;
1709 stream->flavor = RMDEMUX_GUINT16_GET (data + offset + 22);
1710 stream->packet_size = RMDEMUX_GUINT32_GET (data + offset + 24);
1711 /* stream->frame_size = RMDEMUX_GUINT32_GET (data + offset + 42); */
1712 stream->leaf_size = RMDEMUX_GUINT16_GET (data + offset + 44);
1713 stream->height = RMDEMUX_GUINT16_GET (data + offset + 40);
1714 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 48);
1715 stream->sample_width = RMDEMUX_GUINT16_GET (data + offset + 52);
1716 stream->n_channels = RMDEMUX_GUINT16_GET (data + offset + 54);
1717 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 62);
1718 stream->extra_data_size = RMDEMUX_GUINT32_GET (data + offset + 69);
1719 GST_DEBUG_OBJECT (rmdemux, "%u bytes of extra codec data",
1720 stream->extra_data_size);
1721 if (length - (offset + 73) >= stream->extra_data_size) {
1722 stream->extra_data = (guint8 *) data + offset + 73;
1724 GST_WARNING_OBJECT (rmdemux, "codec data runs beyond MDPR chunk");
1725 stream->extra_data_size = 0;
1729 stream->flavor = RMDEMUX_GUINT16_GET (data + offset + 22);
1730 stream->packet_size = RMDEMUX_GUINT32_GET (data + offset + 24);
1731 /* stream->frame_size = RMDEMUX_GUINT32_GET (data + offset + 42); */
1732 stream->leaf_size = RMDEMUX_GUINT16_GET (data + offset + 44);
1733 stream->height = RMDEMUX_GUINT16_GET (data + offset + 40);
1734 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 54);
1735 stream->sample_width = RMDEMUX_GUINT16_GET (data + offset + 58);
1736 stream->n_channels = RMDEMUX_GUINT16_GET (data + offset + 60);
1737 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 66);
1738 stream->extra_data_size = RMDEMUX_GUINT32_GET (data + offset + 74);
1739 GST_DEBUG_OBJECT (rmdemux, "%u bytes of extra codec data",
1740 stream->extra_data_size);
1741 if (length - (offset + 78) >= stream->extra_data_size) {
1742 stream->extra_data = (guint8 *) data + offset + 78;
1744 GST_WARNING_OBJECT (rmdemux, "codec data runs beyond MDPR chunk");
1745 stream->extra_data_size = 0;
1749 GST_WARNING_OBJECT (rmdemux, "Unhandled audio stream version %d",
1754 /* 14_4, 28_8, cook, dnet, sipr, raac, racp, ralf, atrc */
1755 GST_DEBUG_OBJECT (rmdemux,
1756 "Audio stream with rate=%d sample_width=%d n_channels=%d",
1757 stream->rate, stream->sample_width, stream->n_channels);
1761 case GST_RMDEMUX_STREAM_FILEINFO:
1765 /* Length of this section */
1766 GST_DEBUG_OBJECT (rmdemux, "length2: 0x%08x",
1767 RMDEMUX_GUINT32_GET (data + offset));
1770 /* Unknown : 00 00 00 00 */
1773 /* Number of variables that would follow (loop iterations) */
1774 element_nb = RMDEMUX_GUINT32_GET (data + offset);
1777 while (element_nb) {
1778 /* Category Id : 00 00 00 XX 00 00 */
1782 offset += re_skip_pascal_string (data + offset);
1784 /* Variable Value Type */
1785 /* 00 00 00 00 00 => integer/boolean, preceded by length */
1786 /* 00 00 00 02 00 => pascal string, preceded by length, no trailing \0 */
1789 /* Variable Value */
1790 offset += re_skip_pascal_string (data + offset);
1796 case GST_RMDEMUX_STREAM_UNKNOWN:
1801 gst_rmdemux_add_stream (rmdemux, stream);
1805 gst_rmdemux_parse_indx (GstRMDemux * rmdemux, const guint8 * data, int length)
1810 n = RMDEMUX_GUINT32_GET (data);
1811 id = RMDEMUX_GUINT16_GET (data + 4);
1812 rmdemux->index_offset = RMDEMUX_GUINT32_GET (data + 6);
1814 GST_DEBUG_OBJECT (rmdemux, "Number of indices=%d Stream ID=%d length=%d", n,
1817 /* Point to the next index_stream */
1818 rmdemux->index_stream = gst_rmdemux_get_stream_by_id (rmdemux, id);
1820 /* Return the length of the index */
1825 gst_rmdemux_parse_indx_data (GstRMDemux * rmdemux, const guint8 * data,
1830 GstRMDemuxIndex *index;
1832 /* The number of index records */
1835 if (rmdemux->index_stream == NULL)
1838 /* don't parse the index a second time when operating pull-based and
1839 * reaching the end of the file */
1840 if (rmdemux->index_stream->index_length > 0) {
1841 GST_DEBUG_OBJECT (rmdemux, "Already have an index for this stream");
1845 index = g_malloc (sizeof (GstRMDemuxIndex) * n);
1846 rmdemux->index_stream->index = index;
1847 rmdemux->index_stream->index_length = n;
1849 for (i = 0; i < n; i++) {
1850 index[i].timestamp = RMDEMUX_GUINT32_GET (data + 2) * GST_MSECOND;
1851 index[i].offset = RMDEMUX_GUINT32_GET (data + 6);
1853 GST_DEBUG_OBJECT (rmdemux, "Index found for timestamp=%f (at offset=%x)",
1854 gst_guint64_to_gdouble (index[i].timestamp) / GST_SECOND,
1861 gst_rmdemux_parse_data (GstRMDemux * rmdemux, const guint8 * data, int length)
1863 rmdemux->n_chunks = RMDEMUX_GUINT32_GET (data);
1864 rmdemux->data_offset = RMDEMUX_GUINT32_GET (data + 4);
1865 rmdemux->chunk_index = 0;
1866 GST_DEBUG_OBJECT (rmdemux, "Data chunk found with %d packets "
1867 "(next data at 0x%08x)", rmdemux->n_chunks, rmdemux->data_offset);
1871 gst_rmdemux_parse_cont (GstRMDemux * rmdemux, const guint8 * data, int length)
1875 tags = gst_rm_utils_read_tags (data, length, gst_rm_utils_read_string16);
1877 GST_LOG_OBJECT (rmdemux, "tags: %" GST_PTR_FORMAT, tags);
1879 rmdemux->pending_tags =
1880 gst_tag_list_merge (rmdemux->pending_tags, tags, GST_TAG_MERGE_APPEND);
1883 static GstFlowReturn
1884 gst_rmdemux_combine_flows (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
1889 /* store the value */
1890 stream->last_flow = ret;
1892 /* if it's success we can return the value right away */
1893 if (ret == GST_FLOW_OK)
1896 /* any other error that is not-linked can be returned right
1898 if (ret != GST_FLOW_NOT_LINKED)
1901 for (cur = rmdemux->streams; cur; cur = cur->next) {
1902 GstRMDemuxStream *ostream = cur->data;
1904 ret = ostream->last_flow;
1905 /* some other return value (must be SUCCESS but we can return
1906 * other values as well) */
1907 if (ret != GST_FLOW_NOT_LINKED)
1910 /* if we get here, all other pads were unlinked and we return
1911 * NOT_LINKED then */
1917 gst_rmdemux_stream_clear_cached_subpackets (GstRMDemux * rmdemux,
1918 GstRMDemuxStream * stream)
1920 if (stream->subpackets == NULL || stream->subpackets->len == 0)
1923 GST_DEBUG_OBJECT (rmdemux, "discarding %u previously collected subpackets",
1924 stream->subpackets->len);
1925 g_ptr_array_foreach (stream->subpackets, (GFunc) gst_mini_object_unref, NULL);
1926 g_ptr_array_set_size (stream->subpackets, 0);
1929 static GstFlowReturn
1930 gst_rmdemux_descramble_audio (GstRMDemux * rmdemux, GstRMDemuxStream * stream)
1932 GstFlowReturn ret = GST_FLOW_ERROR;
1935 guint packet_size = stream->packet_size;
1936 guint height = stream->subpackets->len;
1937 guint leaf_size = stream->leaf_size;
1940 g_assert (stream->height == height);
1942 GST_LOG ("packet_size = %u, leaf_size = %u, height= %u", packet_size,
1945 outbuf = gst_buffer_new_and_alloc (height * packet_size);
1946 outdata = gst_buffer_map (outbuf, NULL, NULL, GST_MAP_WRITE);
1948 for (p = 0; p < height; ++p) {
1949 GstBuffer *b = g_ptr_array_index (stream->subpackets, p);
1950 guint8 *b_data = gst_buffer_map (b, NULL, NULL, GST_MAP_READ);
1953 GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (b);
1955 for (x = 0; x < packet_size / leaf_size; ++x) {
1958 idx = height * x + ((height + 1) / 2) * (p % 2) + (p / 2);
1960 /* GST_LOG ("%3u => %3u", (height * p) + x, idx); */
1961 memcpy (outdata + leaf_size * idx, b_data + leaf_size * x, leaf_size);
1963 gst_buffer_unmap (b, b_data, -1);
1965 gst_buffer_unmap (outbuf, outdata, -1);
1967 /* some decoders, such as realaudiodec, need to be fed in packet units */
1968 for (p = 0; p < height; ++p) {
1972 gst_buffer_copy_region (outbuf, GST_BUFFER_COPY_ALL, p * packet_size,
1975 GST_LOG_OBJECT (rmdemux, "pushing buffer timestamp %" GST_TIME_FORMAT,
1976 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (subbuf)));
1978 if (stream->discont) {
1979 GST_BUFFER_FLAG_SET (subbuf, GST_BUFFER_FLAG_DISCONT);
1980 stream->discont = FALSE;
1983 ret = gst_pad_push (stream->pad, subbuf);
1984 if (ret != GST_FLOW_OK)
1988 gst_buffer_unref (outbuf);
1990 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
1995 static GstFlowReturn
1996 gst_rmdemux_descramble_dnet_audio (GstRMDemux * rmdemux,
1997 GstRMDemuxStream * stream)
2001 buf = g_ptr_array_index (stream->subpackets, 0);
2002 g_ptr_array_index (stream->subpackets, 0) = NULL;
2003 g_ptr_array_set_size (stream->subpackets, 0);
2005 buf = gst_rm_utils_descramble_dnet_buffer (buf);
2007 if (stream->discont) {
2008 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
2009 stream->discont = FALSE;
2011 return gst_pad_push (stream->pad, buf);
2014 static GstFlowReturn
2015 gst_rmdemux_descramble_mp4a_audio (GstRMDemux * rmdemux,
2016 GstRMDemuxStream * stream)
2019 GstBuffer *buf, *outbuf;
2020 guint frames, index, i;
2022 GstClockTime timestamp;
2026 buf = g_ptr_array_index (stream->subpackets, 0);
2027 g_ptr_array_index (stream->subpackets, 0) = NULL;
2028 g_ptr_array_set_size (stream->subpackets, 0);
2030 data = gst_buffer_map (buf, NULL, NULL, GST_MAP_READ);
2031 timestamp = GST_BUFFER_TIMESTAMP (buf);
2033 frames = (data[1] & 0xf0) >> 4;
2034 index = 2 * frames + 2;
2036 for (i = 0; i < frames; i++) {
2037 guint len = (data[i * 2 + 2] << 8) | data[i * 2 + 3];
2039 outbuf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, index, len);
2041 GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
2045 if (stream->discont) {
2046 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
2047 stream->discont = FALSE;
2049 res = gst_pad_push (stream->pad, outbuf);
2050 if (res != GST_FLOW_OK)
2053 gst_buffer_unmap (buf, data, -1);
2054 gst_buffer_unref (buf);
2058 static GstFlowReturn
2059 gst_rmdemux_descramble_sipr_audio (GstRMDemux * rmdemux,
2060 GstRMDemuxStream * stream)
2065 guint packet_size = stream->packet_size;
2066 guint height = stream->subpackets->len;
2069 g_assert (stream->height == height);
2071 GST_LOG ("packet_size = %u, leaf_size = %u, height= %u", packet_size,
2072 stream->leaf_size, height);
2074 outbuf = gst_buffer_new_and_alloc (height * packet_size);
2075 outdata = gst_buffer_map (outbuf, NULL, NULL, GST_MAP_WRITE);
2077 for (p = 0; p < height; ++p) {
2078 GstBuffer *b = g_ptr_array_index (stream->subpackets, p);
2081 GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (b);
2083 gst_buffer_extract (b, 0, outdata + packet_size * p, packet_size);
2085 gst_buffer_unmap (outbuf, outdata, -1);
2087 GST_LOG_OBJECT (rmdemux, "pushing buffer timestamp %" GST_TIME_FORMAT,
2088 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
2090 if (stream->discont) {
2091 GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
2092 stream->discont = FALSE;
2095 outbuf = gst_rm_utils_descramble_sipr_buffer (outbuf);
2097 ret = gst_pad_push (stream->pad, outbuf);
2099 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
2104 static GstFlowReturn
2105 gst_rmdemux_handle_scrambled_packet (GstRMDemux * rmdemux,
2106 GstRMDemuxStream * stream, GstBuffer * buf, gboolean keyframe)
2110 if (stream->subpackets == NULL)
2111 stream->subpackets = g_ptr_array_sized_new (stream->subpackets_needed);
2113 GST_LOG ("Got subpacket %u/%u, len=%u, key=%d", stream->subpackets->len + 1,
2114 stream->subpackets_needed, gst_buffer_get_size (buf), keyframe);
2116 if (keyframe && stream->subpackets->len > 0) {
2117 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
2120 g_ptr_array_add (stream->subpackets, buf);
2122 if (stream->subpackets->len < stream->subpackets_needed)
2125 g_assert (stream->subpackets->len >= 1);
2127 switch (stream->fourcc) {
2128 case GST_RM_AUD_DNET:
2129 ret = gst_rmdemux_descramble_dnet_audio (rmdemux, stream);
2131 case GST_RM_AUD_COOK:
2132 case GST_RM_AUD_ATRC:
2133 ret = gst_rmdemux_descramble_audio (rmdemux, stream);
2135 case GST_RM_AUD_RAAC:
2136 case GST_RM_AUD_RACP:
2137 ret = gst_rmdemux_descramble_mp4a_audio (rmdemux, stream);
2139 case GST_RM_AUD_SIPR:
2140 ret = gst_rmdemux_descramble_sipr_audio (rmdemux, stream);
2143 g_assert_not_reached ();
2150 gst_rmdemux_fix_timestamp (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
2151 guint8 * data, GstClockTime timestamp)
2155 GstClockTime ts = timestamp;
2157 if (timestamp == GST_CLOCK_TIME_NONE)
2160 /* only adjust when we have a stream with B frames */
2161 if (stream->format < 0x20200002)
2164 /* Fix timestamp. */
2165 switch (stream->fourcc) {
2166 case GST_RM_VDO_RV10:
2168 case GST_RM_VDO_RV20:
2171 * Bit 1- 2: frame type
2173 * Bit 10-22: sequence number
2176 frame_type = (data[0] >> 6) & 0x03;
2177 seq = ((data[1] & 0x7f) << 6) + ((data[2] & 0xfc) >> 2);
2180 case GST_RM_VDO_RV30:
2184 * Bit 3: skip packet if 1
2185 * Bit 4- 5: frame type
2187 * Bit 13-25: sequence number
2190 frame_type = (data[0] >> 3) & 0x03;
2191 seq = ((data[1] & 0x0f) << 9) + (data[2] << 1) + ((data[3] & 0x80) >> 7);
2194 case GST_RM_VDO_RV40:
2197 * Bit 1: skip packet if 1
2198 * Bit 2- 3: frame type
2200 * Bit 14-26: sequence number
2203 frame_type = (data[0] >> 5) & 0x03;
2204 seq = ((data[1] & 0x07) << 10) + (data[2] << 2) + ((data[3] & 0xc0) >> 6);
2208 goto unknown_version;
2211 switch (frame_type) {
2215 GST_LOG_OBJECT (rmdemux, "I frame %d", frame_type);
2217 if (stream->next_ts == -1)
2218 stream->next_ts = timestamp;
2220 timestamp = stream->next_ts;
2221 stream->last_ts = stream->next_ts;
2222 stream->next_ts = ts;
2223 stream->last_seq = stream->next_seq;
2224 stream->next_seq = seq;
2229 GST_LOG_OBJECT (rmdemux, "P frame");
2231 timestamp = stream->last_ts = stream->next_ts;
2232 if (seq < stream->next_seq)
2233 stream->next_ts += (seq + 0x2000 - stream->next_seq) * GST_MSECOND;
2235 stream->next_ts += (seq - stream->next_seq) * GST_MSECOND;
2236 stream->last_seq = stream->next_seq;
2237 stream->next_seq = seq;
2242 GST_LOG_OBJECT (rmdemux, "B frame");
2244 if (seq < stream->last_seq) {
2246 (seq + 0x2000 - stream->last_seq) * GST_MSECOND + stream->last_ts;
2248 timestamp = (seq - stream->last_seq) * GST_MSECOND + stream->last_ts;
2253 goto unknown_frame_type;
2257 GST_LOG_OBJECT (rmdemux,
2258 "timestamp %" GST_TIME_FORMAT " -> %" GST_TIME_FORMAT, GST_TIME_ARGS (ts),
2259 GST_TIME_ARGS (timestamp));
2266 GST_ELEMENT_ERROR (rmdemux, STREAM, DECODE,
2267 ("Unknown version: %i.", stream->version), (NULL));
2268 return GST_FLOW_ERROR;
2273 GST_ELEMENT_ERROR (rmdemux, STREAM, DECODE, ("Unknown frame type %d.",
2274 frame_type), (NULL));
2275 return GST_FLOW_ERROR;
2279 #define PARSE_NUMBER(data, size, number, label) \
2283 number = GST_READ_UINT16_BE (data); \
2284 if (!(number & 0xc000)) { \
2287 number = GST_READ_UINT32_BE (data); \
2297 static GstFlowReturn
2298 gst_rmdemux_parse_video_packet (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
2299 GstBuffer * in, guint offset, guint16 version,
2300 GstClockTime timestamp, gboolean key)
2307 base = gst_buffer_map (in, &size, NULL, GST_MAP_READ);
2309 data = base + offset;
2312 /* if size <= 2, we want this method to return the same GstFlowReturn as it
2313 * was previously for that given stream. */
2314 ret = stream->last_flow;
2320 guint pkg_subseq = 0, pkg_seqnum = G_MAXUINT;
2321 guint fragment_size;
2322 GstBuffer *fragment;
2324 pkg_header = *data++;
2328 * bit 7: 1=last block in block chain
2329 * bit 6: 1=short header (only one block?)
2331 if ((pkg_header & 0xc0) == 0x40) {
2332 /* skip unknown byte */
2338 if ((pkg_header & 0x40) == 0) {
2339 pkg_subseq = (*data++) & 0x7f;
2346 PARSE_NUMBER (data, size, pkg_length, not_enough_data);
2349 PARSE_NUMBER (data, size, pkg_offset, not_enough_data);
2353 goto not_enough_data;
2355 pkg_seqnum = *data++;
2359 GST_DEBUG_OBJECT (rmdemux,
2360 "seq %d, subseq %d, offset %d, length %d, size %d, header %02x",
2361 pkg_seqnum, pkg_subseq, pkg_offset, pkg_length, size, pkg_header);
2363 /* calc size of fragment */
2364 if ((pkg_header & 0xc0) == 0x80) {
2365 fragment_size = pkg_offset;
2367 if ((pkg_header & 0xc0) == 0)
2368 fragment_size = size;
2370 fragment_size = pkg_length;
2372 GST_DEBUG_OBJECT (rmdemux, "fragment size %d", fragment_size);
2374 /* get the fragment */
2376 gst_buffer_copy_region (in, GST_BUFFER_COPY_ALL, data - base,
2379 if (pkg_subseq == 1) {
2380 GST_DEBUG_OBJECT (rmdemux, "start new fragment");
2381 gst_adapter_clear (stream->adapter);
2382 stream->frag_current = 0;
2383 stream->frag_count = 0;
2384 stream->frag_length = pkg_length;
2385 } else if (pkg_subseq == 0) {
2386 GST_DEBUG_OBJECT (rmdemux, "non fragmented packet");
2387 stream->frag_current = 0;
2388 stream->frag_count = 0;
2389 stream->frag_length = fragment_size;
2392 /* put fragment in adapter */
2393 gst_adapter_push (stream->adapter, fragment);
2394 stream->frag_offset[stream->frag_count] = stream->frag_current;
2395 stream->frag_current += fragment_size;
2396 stream->frag_count++;
2398 if (stream->frag_count > MAX_FRAGS)
2399 goto too_many_fragments;
2401 GST_DEBUG_OBJECT (rmdemux, "stored fragment in adapter %d/%d",
2402 stream->frag_current, stream->frag_length);
2404 /* flush fragment when complete */
2405 if (stream->frag_current >= stream->frag_length) {
2407 guint8 *outdata, *outbase;
2411 /* calculate header size, which is:
2412 * 1 byte for the number of fragments - 1
2413 * for each fragment:
2414 * 4 bytes 0x00000001 little endian
2415 * 4 bytes fragment offset
2417 * This is also the matroska header for realvideo, the decoder needs the
2418 * fragment offsets, both in ffmpeg and real .so, so we just give it that
2419 * in front of the data.
2421 header_size = 1 + (8 * (stream->frag_count));
2423 GST_DEBUG_OBJECT (rmdemux,
2424 "fragmented completed. count %d, header_size %u", stream->frag_count,
2427 avail = gst_adapter_available (stream->adapter);
2429 out = gst_buffer_new_and_alloc (header_size + avail);
2430 outbase = gst_buffer_map (out, NULL, NULL, GST_MAP_WRITE);
2434 *outdata++ = stream->frag_count - 1;
2435 for (i = 0; i < stream->frag_count; i++) {
2436 GST_WRITE_UINT32_LE (outdata, 0x00000001);
2438 GST_WRITE_UINT32_LE (outdata, stream->frag_offset[i]);
2442 /* copy packet data after the header now */
2443 gst_adapter_copy (stream->adapter, outdata, 0, avail);
2444 gst_adapter_flush (stream->adapter, avail);
2446 stream->frag_current = 0;
2447 stream->frag_count = 0;
2448 stream->frag_length = 0;
2450 if (timestamp != -1) {
2451 if (rmdemux->first_ts != -1 && timestamp > rmdemux->first_ts)
2452 timestamp -= rmdemux->first_ts;
2456 if (rmdemux->base_ts != -1)
2457 timestamp += rmdemux->base_ts;
2460 gst_rmdemux_fix_timestamp (rmdemux, stream, outdata, timestamp);
2462 gst_buffer_unmap (out, outbase, -1);
2464 GST_BUFFER_TIMESTAMP (out) = timestamp;
2466 GST_LOG_OBJECT (rmdemux, "pushing timestamp %" GST_TIME_FORMAT,
2467 GST_TIME_ARGS (timestamp));
2469 if (stream->discont) {
2470 GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DISCONT);
2471 stream->discont = FALSE;
2475 GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DELTA_UNIT);
2478 ret = gst_pad_push (stream->pad, out);
2479 ret = gst_rmdemux_combine_flows (rmdemux, stream, ret);
2480 if (ret != GST_FLOW_OK)
2483 timestamp = GST_CLOCK_TIME_NONE;
2485 data += fragment_size;
2486 size -= fragment_size;
2488 GST_DEBUG_OBJECT (rmdemux, "%d bytes left", size);
2491 gst_buffer_unmap (in, base, -1);
2492 gst_buffer_unref (in);
2499 GST_ELEMENT_WARNING (rmdemux, STREAM, DECODE, ("Skipping bad packet."),
2506 GST_ELEMENT_ERROR (rmdemux, STREAM, DECODE,
2507 ("Got more fragments (%u) than can be handled (%u)",
2508 stream->frag_count, MAX_FRAGS), (NULL));
2509 ret = GST_FLOW_ERROR;
2514 static GstFlowReturn
2515 gst_rmdemux_parse_audio_packet (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
2516 GstBuffer * in, guint offset, guint16 version,
2517 GstClockTime timestamp, gboolean key)
2522 buffer = gst_buffer_copy_region (in, GST_BUFFER_COPY_MEMORY, offset, -1);
2524 if (rmdemux->first_ts != -1 && timestamp > rmdemux->first_ts)
2525 timestamp -= rmdemux->first_ts;
2529 if (rmdemux->base_ts != -1)
2530 timestamp += rmdemux->base_ts;
2532 GST_BUFFER_TIMESTAMP (buffer) = timestamp;
2534 if (stream->needs_descrambling) {
2535 GST_LOG_OBJECT (rmdemux, "descramble timestamp %" GST_TIME_FORMAT,
2536 GST_TIME_ARGS (timestamp));
2537 ret = gst_rmdemux_handle_scrambled_packet (rmdemux, stream, buffer, key);
2539 GST_LOG_OBJECT (rmdemux,
2540 "Pushing buffer of size %d, timestamp %" GST_TIME_FORMAT "to pad %s",
2541 gst_buffer_get_size (buffer), GST_TIME_ARGS (timestamp),
2542 GST_PAD_NAME (stream->pad));
2544 if (stream->discont) {
2545 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
2546 stream->discont = FALSE;
2548 ret = gst_pad_push (stream->pad, buffer);
2551 gst_buffer_unref (in);
2556 static GstFlowReturn
2557 gst_rmdemux_parse_packet (GstRMDemux * rmdemux, GstBuffer * in, guint16 version)
2560 GstRMDemuxStream *stream;
2562 GstFlowReturn cret, ret;
2563 GstClockTime timestamp;
2565 guint8 *data, *base;
2569 base = data = gst_buffer_map (in, &size, NULL, GST_MAP_READ);
2572 id = RMDEMUX_GUINT16_GET (data);
2574 stream = gst_rmdemux_get_stream_by_id (rmdemux, id);
2575 if (!stream || !stream->pad)
2576 goto unknown_stream;
2578 /* timestamp in Msec */
2579 ts = RMDEMUX_GUINT32_GET (data + 2);
2580 timestamp = ts * GST_MSECOND;
2582 rmdemux->segment.position = timestamp;
2584 GST_LOG_OBJECT (rmdemux, "Parsing a packet for stream=%d, timestamp=%"
2585 GST_TIME_FORMAT ", size %u, version=%d, ts=%u", id,
2586 GST_TIME_ARGS (timestamp), size, version, ts);
2588 if (rmdemux->first_ts == GST_CLOCK_TIME_NONE) {
2589 GST_DEBUG_OBJECT (rmdemux, "First timestamp: %" GST_TIME_FORMAT,
2590 GST_TIME_ARGS (timestamp));
2591 rmdemux->first_ts = timestamp;
2594 /* skip stream_id and timestamp */
2599 flags = GST_READ_UINT8 (data + 1);
2604 /* version 1 has an extra byte */
2609 offset = data - base;
2610 gst_buffer_unmap (in, base, -1);
2612 key = (flags & 0x02) != 0;
2613 GST_DEBUG_OBJECT (rmdemux, "flags %d, Keyframe %d", flags, key);
2615 if (rmdemux->need_newsegment) {
2618 event = gst_event_new_segment (&rmdemux->segment);
2620 GST_DEBUG_OBJECT (rmdemux, "sending NEWSEGMENT event, segment.start= %"
2621 GST_TIME_FORMAT, GST_TIME_ARGS (rmdemux->segment.start));
2623 gst_rmdemux_send_event (rmdemux, event);
2624 rmdemux->need_newsegment = FALSE;
2626 if (rmdemux->pending_tags != NULL) {
2627 gst_element_found_tags (GST_ELEMENT (rmdemux), rmdemux->pending_tags);
2628 rmdemux->pending_tags = NULL;
2632 if (stream->pending_tags != NULL) {
2633 GST_LOG_OBJECT (stream->pad, "tags %" GST_PTR_FORMAT, stream->pending_tags);
2634 gst_element_found_tags_for_pad (GST_ELEMENT_CAST (rmdemux), stream->pad,
2635 stream->pending_tags);
2636 stream->pending_tags = NULL;
2639 if ((rmdemux->offset + size) <= stream->seek_offset) {
2640 GST_DEBUG_OBJECT (rmdemux,
2641 "Stream %d is skipping: seek_offset=%d, offset=%d, size=%u",
2642 stream->id, stream->seek_offset, rmdemux->offset, size);
2644 gst_buffer_unref (in);
2648 /* do special headers */
2649 if (stream->subtype == GST_RMDEMUX_STREAM_VIDEO) {
2651 gst_rmdemux_parse_video_packet (rmdemux, stream, in, offset,
2652 version, timestamp, key);
2653 } else if (stream->subtype == GST_RMDEMUX_STREAM_AUDIO) {
2655 gst_rmdemux_parse_audio_packet (rmdemux, stream, in, offset,
2656 version, timestamp, key);
2658 gst_buffer_unref (in);
2662 cret = gst_rmdemux_combine_flows (rmdemux, stream, ret);
2670 GST_WARNING_OBJECT (rmdemux, "No stream for stream id %d in parsing "
2672 gst_buffer_unmap (in, base, -1);
2673 gst_buffer_unref (in);
2679 gst_rmdemux_plugin_init (GstPlugin * plugin)
2681 return gst_element_register (plugin, "rmdemux",
2682 GST_RANK_PRIMARY, GST_TYPE_RMDEMUX);