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, GstObject * parent,
139 static void gst_rmdemux_loop (GstPad * pad);
140 static gboolean gst_rmdemux_sink_activate (GstPad * sinkpad);
141 static gboolean gst_rmdemux_sink_activate_push (GstPad * sinkpad,
143 static gboolean gst_rmdemux_sink_activate_pull (GstPad * sinkpad,
145 static gboolean gst_rmdemux_sink_event (GstPad * pad, GstObject * parent,
147 static gboolean gst_rmdemux_src_event (GstPad * pad, GstObject * parent,
149 static void gst_rmdemux_send_event (GstRMDemux * rmdemux, GstEvent * event);
150 static gboolean gst_rmdemux_src_query (GstPad * pad, GstObject * parent,
152 static gboolean gst_rmdemux_perform_seek (GstRMDemux * rmdemux,
155 static void gst_rmdemux_parse__rmf (GstRMDemux * rmdemux, const guint8 * data,
157 static void gst_rmdemux_parse_prop (GstRMDemux * rmdemux, const guint8 * data,
159 static void gst_rmdemux_parse_mdpr (GstRMDemux * rmdemux,
160 const guint8 * data, int length);
161 static guint gst_rmdemux_parse_indx (GstRMDemux * rmdemux, const guint8 * data,
163 static void gst_rmdemux_parse_data (GstRMDemux * rmdemux, const guint8 * data,
165 static void gst_rmdemux_parse_cont (GstRMDemux * rmdemux, const guint8 * data,
167 static GstFlowReturn gst_rmdemux_parse_packet (GstRMDemux * rmdemux,
168 GstBuffer * in, guint16 version);
169 static void gst_rmdemux_parse_indx_data (GstRMDemux * rmdemux,
170 const guint8 * data, int length);
171 static void gst_rmdemux_stream_clear_cached_subpackets (GstRMDemux * rmdemux,
172 GstRMDemuxStream * stream);
173 static GstRMDemuxStream *gst_rmdemux_get_stream_by_id (GstRMDemux * rmdemux,
177 gst_rmdemux_get_type (void)
179 static GType rmdemux_type = 0;
182 static const GTypeInfo rmdemux_info = {
183 sizeof (GstRMDemuxClass),
184 (GBaseInitFunc) gst_rmdemux_base_init, NULL,
185 (GClassInitFunc) gst_rmdemux_class_init,
186 NULL, NULL, sizeof (GstRMDemux), 0,
187 (GInstanceInitFunc) gst_rmdemux_init,
191 g_type_register_static (GST_TYPE_ELEMENT, "GstRMDemux", &rmdemux_info,
198 gst_rmdemux_base_init (GstRMDemuxClass * klass)
200 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
202 gst_element_class_add_pad_template (element_class,
203 gst_static_pad_template_get (&gst_rmdemux_sink_template));
204 gst_element_class_add_pad_template (element_class,
205 gst_static_pad_template_get (&gst_rmdemux_videosrc_template));
206 gst_element_class_add_pad_template (element_class,
207 gst_static_pad_template_get (&gst_rmdemux_audiosrc_template));
208 gst_element_class_set_details_simple (element_class, "RealMedia Demuxer",
210 "Demultiplex a RealMedia file into audio and video streams",
211 "David Schleef <ds@schleef.org>");
215 gst_rmdemux_class_init (GstRMDemuxClass * klass)
217 GObjectClass *gobject_class;
218 GstElementClass *gstelement_class;
220 gobject_class = (GObjectClass *) klass;
221 gstelement_class = (GstElementClass *) klass;
223 parent_class = g_type_class_peek_parent (klass);
225 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_rmdemux_change_state);
227 GST_DEBUG_CATEGORY_INIT (rmdemux_debug, "rmdemux",
228 0, "Demuxer for Realmedia streams");
230 gobject_class->finalize = gst_rmdemux_finalize;
234 gst_rmdemux_finalize (GObject * object)
236 GstRMDemux *rmdemux = GST_RMDEMUX (object);
238 if (rmdemux->adapter) {
239 g_object_unref (rmdemux->adapter);
240 rmdemux->adapter = NULL;
243 GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
247 gst_rmdemux_init (GstRMDemux * rmdemux)
250 gst_pad_new_from_static_template (&gst_rmdemux_sink_template, "sink");
251 gst_pad_set_event_function (rmdemux->sinkpad,
252 GST_DEBUG_FUNCPTR (gst_rmdemux_sink_event));
253 gst_pad_set_chain_function (rmdemux->sinkpad,
254 GST_DEBUG_FUNCPTR (gst_rmdemux_chain));
255 gst_pad_set_activate_function (rmdemux->sinkpad,
256 GST_DEBUG_FUNCPTR (gst_rmdemux_sink_activate));
257 gst_pad_set_activatepull_function (rmdemux->sinkpad,
258 GST_DEBUG_FUNCPTR (gst_rmdemux_sink_activate_pull));
259 gst_pad_set_activatepush_function (rmdemux->sinkpad,
260 GST_DEBUG_FUNCPTR (gst_rmdemux_sink_activate_push));
262 gst_element_add_pad (GST_ELEMENT (rmdemux), rmdemux->sinkpad);
264 rmdemux->adapter = gst_adapter_new ();
265 rmdemux->first_ts = GST_CLOCK_TIME_NONE;
266 rmdemux->base_ts = GST_CLOCK_TIME_NONE;
267 rmdemux->need_newsegment = TRUE;
269 gst_rm_utils_run_tests ();
273 gst_rmdemux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
277 switch (GST_EVENT_TYPE (event)) {
278 case GST_EVENT_SEGMENT:
279 gst_event_unref (event);
283 ret = gst_pad_event_default (pad, parent, event);
290 gst_rmdemux_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
294 GstRMDemux *rmdemux = GST_RMDEMUX (parent);
296 GST_LOG_OBJECT (rmdemux, "handling src event");
298 switch (GST_EVENT_TYPE (event)) {
303 GST_LOG_OBJECT (rmdemux, "Event on src: SEEK");
304 /* can't seek if we are not seekable, FIXME could pass the
305 * seek query upstream after converting it to bytes using
306 * the average bitrate of the stream. */
307 if (!rmdemux->seekable) {
309 GST_DEBUG ("seek on non seekable stream");
313 GST_OBJECT_LOCK (rmdemux);
314 /* check if we can do the seek now */
315 running = rmdemux->running;
316 GST_OBJECT_UNLOCK (rmdemux);
318 /* now do the seek */
320 ret = gst_rmdemux_perform_seek (rmdemux, event);
324 gst_event_unref (event);
328 GST_LOG_OBJECT (rmdemux, "Event on src: type=%d", GST_EVENT_TYPE (event));
329 ret = gst_pad_event_default (pad, parent, event);
336 GST_DEBUG ("error handling event");
337 gst_event_unref (event);
341 /* Validate that this looks like a reasonable point to seek to */
343 gst_rmdemux_validate_offset (GstRMDemux * rmdemux)
346 GstFlowReturn flowret;
347 guint16 version, length;
351 flowret = gst_pad_pull_range (rmdemux->sinkpad, rmdemux->offset, 4, &buffer);
353 if (flowret != GST_FLOW_OK) {
354 GST_DEBUG_OBJECT (rmdemux, "Failed to pull data at offset %d",
358 /* TODO: Can we also be seeking to a 'DATA' chunk header? Check this.
359 * Also, for the case we currently handle, can we check any more? It's pretty
360 * sucky to not be validating a little more heavily than this... */
361 /* This should now be the start of a data packet header. That begins with
362 * a 2-byte 'version' field, which has to be 0 or 1, then a length. I'm not
363 * certain what values are valid for length, but it must always be at least
364 * 4 bytes, and we can check that it won't take us past our known total size
367 data = gst_buffer_map (buffer, NULL, NULL, GST_MAP_READ);
368 version = RMDEMUX_GUINT16_GET (data);
369 if (version != 0 && version != 1) {
370 GST_DEBUG_OBJECT (rmdemux, "Expected version 0 or 1, got %d",
375 length = RMDEMUX_GUINT16_GET (data + 2);
376 /* TODO: Also check against total stream length */
378 GST_DEBUG_OBJECT (rmdemux, "Expected length >= 4, got %d", (int) length);
381 gst_buffer_unmap (buffer, data, -1);
384 rmdemux->offset += 4;
385 gst_adapter_clear (rmdemux->adapter);
386 gst_adapter_push (rmdemux->adapter, buffer);
388 GST_WARNING_OBJECT (rmdemux, "Failed to validate seek offset at %d",
390 gst_buffer_unref (buffer);
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");
526 gst_segment_do_seek (&rmdemux->segment, rate, format, flags,
527 cur_type, cur, stop_type, stop, &update);
530 GST_DEBUG_OBJECT (rmdemux, "segment positions set to %" GST_TIME_FORMAT "-%"
531 GST_TIME_FORMAT, GST_TIME_ARGS (rmdemux->segment.start),
532 GST_TIME_ARGS (rmdemux->segment.stop));
534 /* we need to stop flushing on the sinkpad as we're going to use it
535 * next. We can do this as we have the STREAM lock now. */
536 gst_pad_push_event (rmdemux->sinkpad, gst_event_new_flush_stop (TRUE));
538 GST_LOG_OBJECT (rmdemux, "Pushed FLUSH_STOP event");
540 /* For each stream, find the first index offset equal to or before our seek
541 * target. Of these, find the smallest offset. That's where we seek to.
543 * Then we pull 4 bytes from that offset, and validate that we've seeked to a
544 * what looks like a plausible packet.
545 * If that fails, restart, with the seek target set to one less than the
546 * offset we just tried. If we run out of places to try, treat that as a fatal
549 if (!find_seek_offset_time (rmdemux, rmdemux->segment.position)) {
550 GST_LOG_OBJECT (rmdemux, "Failed to find seek offset by time");
555 GST_LOG_OBJECT (rmdemux, "Validating offset %u", rmdemux->offset);
556 validated = gst_rmdemux_validate_offset (rmdemux);
558 GST_INFO_OBJECT (rmdemux, "Failed to validate offset at %u",
560 if (!find_seek_offset_bytes (rmdemux, rmdemux->offset - 1)) {
564 validated = gst_rmdemux_validate_offset (rmdemux);
567 GST_LOG_OBJECT (rmdemux, "Found final offset. Excellent!");
569 /* now we have a new position, prepare for streaming again */
571 /* Reset the demuxer state */
572 rmdemux->state = RMDEMUX_STATE_DATA_PACKET;
575 gst_rmdemux_send_event (rmdemux, gst_event_new_flush_stop (TRUE));
577 /* must send newsegment event from streaming thread, so just set flag */
578 rmdemux->need_newsegment = TRUE;
580 /* notify start of new segment */
581 if (rmdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
582 gst_element_post_message (GST_ELEMENT_CAST (rmdemux),
583 gst_message_new_segment_start (GST_OBJECT_CAST (rmdemux),
584 GST_FORMAT_TIME, rmdemux->segment.position));
587 /* restart our task since it might have been stopped when we did the
589 gst_pad_start_task (rmdemux->sinkpad, (GstTaskFunction) gst_rmdemux_loop,
594 /* streaming can continue now */
595 GST_PAD_STREAM_UNLOCK (rmdemux->sinkpad);
601 GST_DEBUG_OBJECT (rmdemux, "seek failed");
608 gst_rmdemux_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
610 gboolean res = FALSE;
613 rmdemux = GST_RMDEMUX (parent);
615 switch (GST_QUERY_TYPE (query)) {
616 case GST_QUERY_POSITION:
617 GST_DEBUG_OBJECT (rmdemux, "Position query: no idea from demuxer!");
619 case GST_QUERY_DURATION:{
622 gst_query_parse_duration (query, &fmt, NULL);
623 if (fmt == GST_FORMAT_TIME) {
624 GST_OBJECT_LOCK (rmdemux);
625 if (G_LIKELY (rmdemux->running)) {
626 gst_query_set_duration (query, GST_FORMAT_TIME, rmdemux->duration);
627 GST_DEBUG_OBJECT (rmdemux, "duration set to %" GST_TIME_FORMAT,
628 GST_TIME_ARGS (rmdemux->duration));
631 GST_OBJECT_UNLOCK (rmdemux);
635 case GST_QUERY_SEEKING:{
638 gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
639 if (fmt == GST_FORMAT_TIME) {
640 GST_OBJECT_LOCK (rmdemux);
641 if (G_LIKELY (rmdemux->running)) {
642 gst_query_set_seeking (query, GST_FORMAT_TIME, rmdemux->seekable,
643 0, rmdemux->duration);
646 GST_OBJECT_UNLOCK (rmdemux);
651 res = gst_pad_query_default (pad, parent, query);
659 gst_rmdemux_reset (GstRMDemux * rmdemux)
663 GST_OBJECT_LOCK (rmdemux);
664 rmdemux->running = FALSE;
665 GST_OBJECT_UNLOCK (rmdemux);
667 for (cur = rmdemux->streams; cur; cur = cur->next) {
668 GstRMDemuxStream *stream = cur->data;
670 g_object_unref (stream->adapter);
671 gst_rmdemux_stream_clear_cached_subpackets (rmdemux, stream);
672 gst_element_remove_pad (GST_ELEMENT (rmdemux), stream->pad);
673 if (stream->pending_tags)
674 gst_tag_list_free (stream->pending_tags);
675 if (stream->subpackets)
676 g_ptr_array_free (stream->subpackets, TRUE);
677 g_free (stream->index);
680 g_slist_free (rmdemux->streams);
681 rmdemux->streams = NULL;
682 rmdemux->n_audio_streams = 0;
683 rmdemux->n_video_streams = 0;
685 if (rmdemux->pending_tags != NULL) {
686 gst_tag_list_free (rmdemux->pending_tags);
687 rmdemux->pending_tags = NULL;
690 gst_adapter_clear (rmdemux->adapter);
691 rmdemux->state = RMDEMUX_STATE_HEADER;
692 rmdemux->have_pads = FALSE;
694 gst_segment_init (&rmdemux->segment, GST_FORMAT_UNDEFINED);
695 rmdemux->first_ts = GST_CLOCK_TIME_NONE;
696 rmdemux->base_ts = GST_CLOCK_TIME_NONE;
697 rmdemux->need_newsegment = TRUE;
700 static GstStateChangeReturn
701 gst_rmdemux_change_state (GstElement * element, GstStateChange transition)
703 GstRMDemux *rmdemux = GST_RMDEMUX (element);
704 GstStateChangeReturn res;
706 switch (transition) {
707 case GST_STATE_CHANGE_NULL_TO_READY:
709 case GST_STATE_CHANGE_READY_TO_PAUSED:
710 rmdemux->state = RMDEMUX_STATE_HEADER;
711 rmdemux->have_pads = FALSE;
712 gst_segment_init (&rmdemux->segment, GST_FORMAT_TIME);
713 rmdemux->running = FALSE;
715 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
721 res = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
723 switch (transition) {
724 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
726 case GST_STATE_CHANGE_PAUSED_TO_READY:{
727 gst_rmdemux_reset (rmdemux);
730 case GST_STATE_CHANGE_READY_TO_NULL:
739 /* this function is called when the pad is activated and should start
742 * We check if we can do random access to decide if we work push or
746 gst_rmdemux_sink_activate (GstPad * sinkpad)
752 query = gst_query_new_scheduling ();
754 if (!gst_pad_peer_query (sinkpad, query)) {
755 gst_query_unref (query);
759 gst_query_parse_scheduling (query, &pull_mode, NULL, NULL, NULL, NULL, NULL);
764 GST_DEBUG_OBJECT (sinkpad, "activating pull");
765 return gst_pad_activate_pull (sinkpad, TRUE);
769 GST_DEBUG_OBJECT (sinkpad, "activating push");
770 return gst_pad_activate_push (sinkpad, TRUE);
774 /* this function gets called when we activate ourselves in push mode.
775 * We cannot seek (ourselves) in the stream */
777 gst_rmdemux_sink_activate_push (GstPad * pad, gboolean active)
781 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
783 GST_DEBUG_OBJECT (rmdemux, "activate_push");
785 rmdemux->seekable = FALSE;
790 /* this function gets called when we activate ourselves in pull mode.
791 * We can perform random access to the resource and we start a task
792 * to start reading */
794 gst_rmdemux_sink_activate_pull (GstPad * pad, gboolean active)
798 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
800 GST_DEBUG_OBJECT (rmdemux, "activate_pull");
803 rmdemux->seekable = TRUE;
805 rmdemux->loop_state = RMDEMUX_LOOP_STATE_HEADER;
806 rmdemux->data_offset = G_MAXUINT;
808 return gst_pad_start_task (pad, (GstTaskFunction) gst_rmdemux_loop, pad);
810 return gst_pad_stop_task (pad);
814 /* random access mode - just pass over to our chain function */
816 gst_rmdemux_loop (GstPad * pad)
820 GstFlowReturn ret = GST_FLOW_OK;
823 rmdemux = GST_RMDEMUX (GST_PAD_PARENT (pad));
825 GST_LOG_OBJECT (rmdemux, "loop with state=%d and offset=0x%x",
826 rmdemux->loop_state, rmdemux->offset);
828 switch (rmdemux->state) {
829 case RMDEMUX_STATE_HEADER:
832 case RMDEMUX_STATE_HEADER_DATA:
835 case RMDEMUX_STATE_DATA_PACKET:
836 size = rmdemux->avg_packet_size;
838 case RMDEMUX_STATE_EOS:
839 GST_LOG_OBJECT (rmdemux, "At EOS, pausing task");
840 ret = GST_FLOW_UNEXPECTED;
843 GST_LOG_OBJECT (rmdemux, "Default: requires %d bytes (state is %d)",
844 (int) rmdemux->size, rmdemux->state);
845 size = rmdemux->size;
848 ret = gst_pad_pull_range (pad, rmdemux->offset, size, &buffer);
849 if (ret != GST_FLOW_OK) {
850 if (rmdemux->offset == rmdemux->index_offset) {
851 /* The index isn't available so forget about it */
852 rmdemux->loop_state = RMDEMUX_LOOP_STATE_DATA;
853 rmdemux->offset = rmdemux->data_offset;
854 GST_OBJECT_LOCK (rmdemux);
855 rmdemux->running = TRUE;
856 rmdemux->seekable = FALSE;
857 GST_OBJECT_UNLOCK (rmdemux);
860 GST_DEBUG_OBJECT (rmdemux, "Unable to pull %d bytes at offset 0x%08x "
861 "(pull_range returned flow %s, state is %d)", (gint) size,
862 rmdemux->offset, gst_flow_get_name (ret), GST_STATE (rmdemux));
867 /* Defer to the chain function */
868 ret = gst_rmdemux_chain (pad, GST_OBJECT_CAST (rmdemux), buffer);
869 if (ret != GST_FLOW_OK) {
870 GST_DEBUG_OBJECT (rmdemux, "Chain flow failed at offset 0x%08x",
875 rmdemux->offset += gst_buffer_get_size (buffer);
877 switch (rmdemux->loop_state) {
878 case RMDEMUX_LOOP_STATE_HEADER:
879 if (rmdemux->offset >= rmdemux->data_offset) {
880 /* It's the end of the header */
881 rmdemux->loop_state = RMDEMUX_LOOP_STATE_INDEX;
882 rmdemux->offset = rmdemux->index_offset;
885 case RMDEMUX_LOOP_STATE_INDEX:
886 if (rmdemux->state == RMDEMUX_STATE_HEADER) {
887 if (rmdemux->index_offset == 0) {
888 /* We've read the last index */
889 rmdemux->loop_state = RMDEMUX_LOOP_STATE_DATA;
890 rmdemux->offset = rmdemux->data_offset;
891 GST_OBJECT_LOCK (rmdemux);
892 rmdemux->running = TRUE;
893 GST_OBJECT_UNLOCK (rmdemux);
895 /* Get the next index */
896 rmdemux->offset = rmdemux->index_offset;
900 case RMDEMUX_LOOP_STATE_DATA:
909 const gchar *reason = gst_flow_get_name (ret);
911 GST_LOG_OBJECT (rmdemux, "pausing task, reason %s", reason);
912 rmdemux->segment_running = FALSE;
913 gst_pad_pause_task (rmdemux->sinkpad);
915 if (ret == GST_FLOW_UNEXPECTED) {
916 /* perform EOS logic */
917 if (rmdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
920 /* for segment playback we need to post when (in stream time)
921 * we stopped, this is either stop (when set) or the duration. */
922 if ((stop = rmdemux->segment.stop) == -1)
923 stop = rmdemux->segment.duration;
925 GST_LOG_OBJECT (rmdemux, "Sending segment done, at end of segment");
926 gst_element_post_message (GST_ELEMENT (rmdemux),
927 gst_message_new_segment_done (GST_OBJECT (rmdemux),
928 GST_FORMAT_TIME, stop));
930 /* normal playback, send EOS to all linked pads */
931 GST_LOG_OBJECT (rmdemux, "Sending EOS, at end of stream");
932 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
934 } else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED) {
935 GST_ELEMENT_ERROR (rmdemux, STREAM, FAILED,
936 (NULL), ("stream stopped, reason %s", reason));
937 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
944 gst_rmdemux_fourcc_isplausible (guint32 fourcc)
948 for (i = 0; i < 4; i++) {
949 if (!isprint ((int) ((unsigned char *) (&fourcc))[i])) {
957 gst_rmdemux_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
959 GstFlowReturn ret = GST_FLOW_OK;
964 GstRMDemux *rmdemux = GST_RMDEMUX (parent);
966 if (rmdemux->base_ts == -1) {
967 rmdemux->base_ts = GST_BUFFER_TIMESTAMP (buffer);
968 GST_LOG_OBJECT (rmdemux, "base_ts %" GST_TIME_FORMAT,
969 GST_TIME_ARGS (rmdemux->base_ts));
972 gst_adapter_push (rmdemux->adapter, buffer);
974 GST_LOG_OBJECT (rmdemux, "Chaining buffer of size %d",
975 gst_buffer_get_size (buffer));
978 avail = gst_adapter_available (rmdemux->adapter);
980 GST_LOG_OBJECT (rmdemux, "looping in chain, avail %u", avail);
981 switch (rmdemux->state) {
982 case RMDEMUX_STATE_HEADER:
984 if (gst_adapter_available (rmdemux->adapter) < HEADER_SIZE)
987 data = gst_adapter_map (rmdemux->adapter, HEADER_SIZE);
989 rmdemux->object_id = RMDEMUX_FOURCC_GET (data + 0);
990 rmdemux->size = RMDEMUX_GUINT32_GET (data + 4) - HEADER_SIZE;
991 rmdemux->object_version = RMDEMUX_GUINT16_GET (data + 8);
993 /* Sanity-check. We assume that the FOURCC is printable ASCII */
994 if (!gst_rmdemux_fourcc_isplausible (rmdemux->object_id)) {
995 /* Failed. Remain in HEADER state, try again... We flush only
996 * the actual FOURCC, not the entire header, because we could
997 * need to resync anywhere at all... really, this should never
999 GST_WARNING_OBJECT (rmdemux, "Bogus looking header, unprintable "
1001 gst_adapter_unmap (rmdemux->adapter);
1002 gst_adapter_flush (rmdemux->adapter, 4);
1007 GST_LOG_OBJECT (rmdemux, "header found with object_id=%"
1009 " size=%08x object_version=%d",
1010 GST_FOURCC_ARGS (rmdemux->object_id), rmdemux->size,
1011 rmdemux->object_version);
1013 gst_adapter_unmap (rmdemux->adapter);
1014 gst_adapter_flush (rmdemux->adapter, HEADER_SIZE);
1016 switch (rmdemux->object_id) {
1017 case GST_MAKE_FOURCC ('.', 'R', 'M', 'F'):
1018 rmdemux->state = RMDEMUX_STATE_HEADER_RMF;
1020 case GST_MAKE_FOURCC ('P', 'R', 'O', 'P'):
1021 rmdemux->state = RMDEMUX_STATE_HEADER_PROP;
1023 case GST_MAKE_FOURCC ('M', 'D', 'P', 'R'):
1024 rmdemux->state = RMDEMUX_STATE_HEADER_MDPR;
1026 case GST_MAKE_FOURCC ('I', 'N', 'D', 'X'):
1027 rmdemux->state = RMDEMUX_STATE_HEADER_INDX;
1029 case GST_MAKE_FOURCC ('D', 'A', 'T', 'A'):
1030 rmdemux->state = RMDEMUX_STATE_HEADER_DATA;
1032 case GST_MAKE_FOURCC ('C', 'O', 'N', 'T'):
1033 rmdemux->state = RMDEMUX_STATE_HEADER_CONT;
1036 rmdemux->state = RMDEMUX_STATE_HEADER_UNKNOWN;
1041 case RMDEMUX_STATE_HEADER_UNKNOWN:
1043 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1046 GST_WARNING_OBJECT (rmdemux, "Unknown object_id %" GST_FOURCC_FORMAT,
1047 GST_FOURCC_ARGS (rmdemux->object_id));
1049 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1050 rmdemux->state = RMDEMUX_STATE_HEADER;
1053 case RMDEMUX_STATE_HEADER_RMF:
1055 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1058 if ((rmdemux->object_version == 0) || (rmdemux->object_version == 1)) {
1059 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1060 gst_rmdemux_parse__rmf (rmdemux, data, rmdemux->size);
1061 gst_adapter_unmap (rmdemux->adapter);
1062 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1064 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1066 rmdemux->state = RMDEMUX_STATE_HEADER;
1069 case RMDEMUX_STATE_HEADER_PROP:
1071 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1074 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1075 gst_rmdemux_parse_prop (rmdemux, data, rmdemux->size);
1076 gst_adapter_unmap (rmdemux->adapter);
1077 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1079 rmdemux->state = RMDEMUX_STATE_HEADER;
1082 case RMDEMUX_STATE_HEADER_MDPR:
1084 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1087 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1088 gst_rmdemux_parse_mdpr (rmdemux, data, rmdemux->size);
1089 gst_adapter_unmap (rmdemux->adapter);
1090 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1092 rmdemux->state = RMDEMUX_STATE_HEADER;
1095 case RMDEMUX_STATE_HEADER_CONT:
1097 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1100 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1101 gst_rmdemux_parse_cont (rmdemux, data, rmdemux->size);
1102 gst_adapter_unmap (rmdemux->adapter);
1103 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1105 rmdemux->state = RMDEMUX_STATE_HEADER;
1108 case RMDEMUX_STATE_HEADER_DATA:
1110 /* If we haven't already done so then signal there are no more pads */
1111 if (!rmdemux->have_pads) {
1112 GST_LOG_OBJECT (rmdemux, "no more pads");
1113 gst_element_no_more_pads (GST_ELEMENT (rmdemux));
1114 rmdemux->have_pads = TRUE;
1117 /* The actual header is only 8 bytes */
1118 rmdemux->size = DATA_SIZE;
1119 GST_LOG_OBJECT (rmdemux, "data available %d",
1120 gst_adapter_available (rmdemux->adapter));
1121 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1124 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1125 gst_rmdemux_parse_data (rmdemux, data, rmdemux->size);
1126 gst_adapter_unmap (rmdemux->adapter);
1127 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1129 rmdemux->state = RMDEMUX_STATE_DATA_PACKET;
1132 case RMDEMUX_STATE_HEADER_INDX:
1134 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1137 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1138 rmdemux->size = gst_rmdemux_parse_indx (rmdemux, data, rmdemux->size);
1139 /* Only flush the header */
1140 gst_adapter_unmap (rmdemux->adapter);
1141 gst_adapter_flush (rmdemux->adapter, HEADER_SIZE);
1143 rmdemux->state = RMDEMUX_STATE_INDX_DATA;
1146 case RMDEMUX_STATE_INDX_DATA:
1148 /* There's not always an data to get... */
1149 if (rmdemux->size > 0) {
1150 if (gst_adapter_available (rmdemux->adapter) < rmdemux->size)
1153 data = gst_adapter_map (rmdemux->adapter, rmdemux->size);
1154 gst_rmdemux_parse_indx_data (rmdemux, data, rmdemux->size);
1155 gst_adapter_unmap (rmdemux->adapter);
1156 gst_adapter_flush (rmdemux->adapter, rmdemux->size);
1159 rmdemux->state = RMDEMUX_STATE_HEADER;
1162 case RMDEMUX_STATE_DATA_PACKET:
1166 if (gst_adapter_available (rmdemux->adapter) < 2)
1169 gst_adapter_copy (rmdemux->adapter, header, 0, 2);
1170 version = RMDEMUX_GUINT16_GET (header);
1171 GST_LOG_OBJECT (rmdemux, "Data packet with version=%d", version);
1173 if (version == 0 || version == 1) {
1176 if (gst_adapter_available (rmdemux->adapter) < 4)
1179 gst_adapter_copy (rmdemux->adapter, header, 0, 4);
1181 length = RMDEMUX_GUINT16_GET (header + 2);
1182 GST_LOG_OBJECT (rmdemux, "Got length %d", length);
1185 GST_LOG_OBJECT (rmdemux, "length too small, dropping");
1186 /* Invalid, just drop it */
1187 gst_adapter_flush (rmdemux->adapter, 4);
1191 avail = gst_adapter_available (rmdemux->adapter);
1195 GST_LOG_OBJECT (rmdemux, "we have %u available and we needed %d",
1198 /* flush version and length */
1199 gst_adapter_flush (rmdemux->adapter, 4);
1202 buffer = gst_adapter_take_buffer (rmdemux->adapter, length);
1204 ret = gst_rmdemux_parse_packet (rmdemux, buffer, version);
1205 rmdemux->chunk_index++;
1208 if (rmdemux->chunk_index == rmdemux->n_chunks || length == 0)
1209 rmdemux->state = RMDEMUX_STATE_HEADER;
1212 gst_adapter_flush (rmdemux->adapter, 2);
1214 if (rmdemux->data_offset == 0) {
1215 GST_LOG_OBJECT (rmdemux,
1216 "No further data, internal demux state EOS");
1217 rmdemux->state = RMDEMUX_STATE_EOS;
1219 rmdemux->state = RMDEMUX_STATE_HEADER;
1223 case RMDEMUX_STATE_EOS:
1224 gst_rmdemux_send_event (rmdemux, gst_event_new_eos ());
1227 GST_WARNING_OBJECT (rmdemux, "Unhandled state %d", rmdemux->state);
1236 static GstRMDemuxStream *
1237 gst_rmdemux_get_stream_by_id (GstRMDemux * rmdemux, int id)
1241 for (cur = rmdemux->streams; cur; cur = cur->next) {
1242 GstRMDemuxStream *stream = cur->data;
1244 if (stream->id == id) {
1253 gst_rmdemux_send_event (GstRMDemux * rmdemux, GstEvent * event)
1257 for (cur = rmdemux->streams; cur; cur = cur->next) {
1258 GstRMDemuxStream *stream = cur->data;
1260 GST_DEBUG_OBJECT (rmdemux, "Pushing %s event on pad %s",
1261 GST_EVENT_TYPE_NAME (event), GST_PAD_NAME (stream->pad));
1263 switch (GST_EVENT_TYPE (event)) {
1264 case GST_EVENT_FLUSH_STOP:
1265 stream->last_ts = -1;
1266 stream->next_ts = -1;
1267 stream->last_seq = -1;
1268 stream->next_seq = -1;
1269 stream->last_flow = GST_FLOW_OK;
1274 gst_event_ref (event);
1275 gst_pad_push_event (stream->pad, event);
1277 gst_event_unref (event);
1281 gst_rmdemux_add_stream (GstRMDemux * rmdemux, GstRMDemuxStream * stream)
1283 GstCaps *stream_caps = NULL;
1284 const gchar *codec_tag = NULL;
1285 gchar *codec_name = NULL;
1288 if (stream->subtype == GST_RMDEMUX_STREAM_VIDEO) {
1289 char *name = g_strdup_printf ("video_%u", rmdemux->n_video_streams);
1292 gst_pad_new_from_static_template (&gst_rmdemux_videosrc_template, name);
1295 codec_tag = GST_TAG_VIDEO_CODEC;
1297 switch (stream->fourcc) {
1298 case GST_RM_VDO_RV10:
1301 case GST_RM_VDO_RV20:
1304 case GST_RM_VDO_RV30:
1307 case GST_RM_VDO_RV40:
1311 stream_caps = gst_caps_new_simple ("video/x-unknown-fourcc",
1312 "fourcc", G_TYPE_UINT, stream->fourcc, NULL);
1313 GST_WARNING_OBJECT (rmdemux,
1314 "Unknown video FOURCC code \"%" GST_FOURCC_FORMAT "\" (%08x)",
1315 GST_FOURCC_ARGS (stream->fourcc), stream->fourcc);
1320 gst_caps_new_simple ("video/x-pn-realvideo", "rmversion", G_TYPE_INT,
1322 "format", G_TYPE_INT,
1323 (int) stream->format,
1324 "subformat", G_TYPE_INT, (int) stream->subformat, NULL);
1328 gst_caps_set_simple (stream_caps,
1329 "width", G_TYPE_INT, stream->width,
1330 "height", G_TYPE_INT, stream->height,
1331 "framerate", GST_TYPE_FRACTION, stream->framerate_numerator,
1332 stream->framerate_denominator, NULL);
1334 rmdemux->n_video_streams++;
1336 } else if (stream->subtype == GST_RMDEMUX_STREAM_AUDIO) {
1337 char *name = g_strdup_printf ("audio_%u", rmdemux->n_audio_streams);
1340 gst_pad_new_from_static_template (&gst_rmdemux_audiosrc_template, name);
1341 GST_LOG_OBJECT (rmdemux, "Created audio pad \"%s\"", name);
1344 codec_tag = GST_TAG_AUDIO_CODEC;
1346 switch (stream->fourcc) {
1347 /* Older RealAudio Codecs */
1348 case GST_RM_AUD_14_4:
1352 case GST_RM_AUD_28_8:
1356 /* DolbyNet (Dolby AC3, low bitrate) */
1357 case GST_RM_AUD_DNET:
1359 gst_caps_new_simple ("audio/x-ac3", "rate", G_TYPE_INT,
1360 (int) stream->rate, NULL);
1361 stream->needs_descrambling = TRUE;
1362 stream->subpackets_needed = 1;
1363 stream->subpackets = NULL;
1367 case GST_RM_AUD_RAAC:
1368 case GST_RM_AUD_RACP:
1370 gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT,
1371 (int) 4, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
1372 if (stream->extra_data_size > 0) {
1373 /* strip off an unknown byte in the extra data */
1374 stream->extra_data_size--;
1375 stream->extra_data++;
1377 stream->needs_descrambling = TRUE;
1378 stream->subpackets_needed = 1;
1379 stream->subpackets = NULL;
1383 case GST_RM_AUD_ATRC:
1384 stream_caps = gst_caps_new_empty_simple ("audio/x-vnd.sony.atrac3");
1385 stream->needs_descrambling = TRUE;
1386 stream->subpackets_needed = stream->height;
1387 stream->subpackets = NULL;
1390 /* RealAudio G2 audio */
1391 case GST_RM_AUD_COOK:
1393 stream->needs_descrambling = TRUE;
1394 stream->subpackets_needed = stream->height;
1395 stream->subpackets = NULL;
1398 /* RALF is lossless */
1399 case GST_RM_AUD_RALF:
1400 GST_DEBUG_OBJECT (rmdemux, "RALF");
1401 stream_caps = gst_caps_new_empty_simple ("audio/x-ralf-mpeg4-generic");
1404 case GST_RM_AUD_SIPR:
1406 if (stream->flavor > 3) {
1407 GST_WARNING_OBJECT (rmdemux, "bad SIPR flavor %d, freeing it",
1413 GST_DEBUG_OBJECT (rmdemux, "SIPR");
1414 stream_caps = gst_caps_new_empty_simple ("audio/x-sipro");
1415 stream->needs_descrambling = TRUE;
1416 stream->subpackets_needed = stream->height;
1417 stream->subpackets = NULL;
1418 stream->leaf_size = sipr_subpk_size[stream->flavor];
1423 stream_caps = gst_caps_new_simple ("video/x-unknown-fourcc",
1424 "fourcc", G_TYPE_UINT, stream->fourcc, NULL);
1425 GST_WARNING_OBJECT (rmdemux,
1426 "Unknown audio FOURCC code \"%" GST_FOURCC_FORMAT "\" (%08x)",
1427 GST_FOURCC_ARGS (stream->fourcc), stream->fourcc);
1433 gst_caps_new_simple ("audio/x-pn-realaudio", "raversion", G_TYPE_INT,
1434 (int) version, NULL);
1438 gst_caps_set_simple (stream_caps,
1439 "flavor", G_TYPE_INT, (int) stream->flavor,
1440 "rate", G_TYPE_INT, (int) stream->rate,
1441 "channels", G_TYPE_INT, (int) stream->n_channels,
1442 "width", G_TYPE_INT, (int) stream->sample_width,
1443 "leaf_size", G_TYPE_INT, (int) stream->leaf_size,
1444 "packet_size", G_TYPE_INT, (int) stream->packet_size,
1445 "bitrate", G_TYPE_INT, (int) stream->bitrate,
1446 "height", G_TYPE_INT, (int) stream->height, NULL);
1448 rmdemux->n_audio_streams++;
1450 GST_WARNING_OBJECT (rmdemux, "not adding stream of type %d, freeing it",
1456 GST_PAD_ELEMENT_PRIVATE (stream->pad) = stream;
1457 rmdemux->streams = g_slist_append (rmdemux->streams, stream);
1458 GST_LOG_OBJECT (rmdemux, "n_streams is now %d",
1459 g_slist_length (rmdemux->streams));
1461 GST_LOG ("stream->pad = %p, stream_caps = %" GST_PTR_FORMAT, stream->pad,
1464 if (stream->pad && stream_caps) {
1466 GST_LOG_OBJECT (rmdemux, "%d bytes of extra data for stream %s",
1467 stream->extra_data_size, GST_PAD_NAME (stream->pad));
1469 /* add codec_data if there is any */
1470 if (stream->extra_data_size > 0) {
1473 buffer = gst_buffer_new_and_alloc (stream->extra_data_size);
1474 gst_buffer_fill (buffer, 0, stream->extra_data, stream->extra_data_size);
1476 gst_caps_set_simple (stream_caps, "codec_data", GST_TYPE_BUFFER,
1479 gst_buffer_unref (buffer);
1482 gst_pad_use_fixed_caps (stream->pad);
1484 gst_pad_set_caps (stream->pad, stream_caps);
1485 gst_pad_set_event_function (stream->pad,
1486 GST_DEBUG_FUNCPTR (gst_rmdemux_src_event));
1487 gst_pad_set_query_function (stream->pad,
1488 GST_DEBUG_FUNCPTR (gst_rmdemux_src_query));
1490 GST_DEBUG_OBJECT (rmdemux, "adding pad %s with caps %" GST_PTR_FORMAT
1491 ", stream_id=%d", GST_PAD_NAME (stream->pad), stream_caps, stream->id);
1492 gst_pad_set_active (stream->pad, TRUE);
1493 gst_element_add_pad (GST_ELEMENT_CAST (rmdemux), stream->pad);
1495 codec_name = gst_pb_utils_get_codec_description (stream_caps);
1497 /* save for later, we must send the tags after the newsegment event */
1498 if (codec_tag != NULL && codec_name != NULL) {
1499 if (stream->pending_tags == NULL)
1500 stream->pending_tags = gst_tag_list_new_empty ();
1501 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_KEEP,
1502 codec_tag, codec_name, NULL);
1503 g_free (codec_name);
1510 gst_caps_unref (stream_caps);
1514 re_skip_pascal_string (const guint8 * ptr)
1524 gst_rmdemux_parse__rmf (GstRMDemux * rmdemux, const guint8 * data, int length)
1526 GST_LOG_OBJECT (rmdemux, "file_version: %d", RMDEMUX_GUINT32_GET (data));
1527 GST_LOG_OBJECT (rmdemux, "num_headers: %d", RMDEMUX_GUINT32_GET (data + 4));
1531 gst_rmdemux_parse_prop (GstRMDemux * rmdemux, const guint8 * data, int length)
1533 GST_LOG_OBJECT (rmdemux, "max bitrate: %d", RMDEMUX_GUINT32_GET (data));
1534 GST_LOG_OBJECT (rmdemux, "avg bitrate: %d", RMDEMUX_GUINT32_GET (data + 4));
1535 GST_LOG_OBJECT (rmdemux, "max packet size: %d",
1536 RMDEMUX_GUINT32_GET (data + 8));
1537 rmdemux->avg_packet_size = RMDEMUX_GUINT32_GET (data + 12);
1538 GST_LOG_OBJECT (rmdemux, "avg packet size: %d", rmdemux->avg_packet_size);
1539 rmdemux->num_packets = RMDEMUX_GUINT32_GET (data + 16);
1540 GST_LOG_OBJECT (rmdemux, "number of packets: %d", rmdemux->num_packets);
1542 GST_LOG_OBJECT (rmdemux, "duration: %d", RMDEMUX_GUINT32_GET (data + 20));
1543 rmdemux->duration = RMDEMUX_GUINT32_GET (data + 20) * GST_MSECOND;
1545 GST_LOG_OBJECT (rmdemux, "preroll: %d", RMDEMUX_GUINT32_GET (data + 24));
1546 rmdemux->index_offset = RMDEMUX_GUINT32_GET (data + 28);
1547 GST_LOG_OBJECT (rmdemux, "offset of INDX section: 0x%08x",
1548 rmdemux->index_offset);
1549 rmdemux->data_offset = RMDEMUX_GUINT32_GET (data + 32);
1550 GST_LOG_OBJECT (rmdemux, "offset of DATA section: 0x%08x",
1551 rmdemux->data_offset);
1552 GST_LOG_OBJECT (rmdemux, "n streams: %d", RMDEMUX_GUINT16_GET (data + 36));
1553 GST_LOG_OBJECT (rmdemux, "flags: 0x%04x", RMDEMUX_GUINT16_GET (data + 38));
1557 gst_rmdemux_parse_mdpr (GstRMDemux * rmdemux, const guint8 * data, int length)
1559 GstRMDemuxStream *stream;
1560 char *stream1_type_string;
1561 char *stream2_type_string;
1565 guint32 max_bitrate;
1566 guint32 avg_bitrate;
1568 stream = g_new0 (GstRMDemuxStream, 1);
1570 stream->id = RMDEMUX_GUINT16_GET (data);
1571 stream->index = NULL;
1572 stream->seek_offset = 0;
1573 stream->last_ts = -1;
1574 stream->next_ts = -1;
1575 stream->last_flow = GST_FLOW_OK;
1576 stream->discont = TRUE;
1577 stream->adapter = gst_adapter_new ();
1578 GST_LOG_OBJECT (rmdemux, "stream_number=%d", stream->id);
1580 /* parse the bitrates */
1581 max_bitrate = RMDEMUX_GUINT32_GET (data + 2);
1582 avg_bitrate = RMDEMUX_GUINT32_GET (data + 6);
1583 stream->bitrate = avg_bitrate;
1584 GST_LOG_OBJECT (rmdemux, "Stream max bitrate=%u", max_bitrate);
1585 GST_LOG_OBJECT (rmdemux, "Stream avg bitrate=%u", avg_bitrate);
1586 if (max_bitrate != 0) {
1587 if (stream->pending_tags == NULL)
1588 stream->pending_tags = gst_tag_list_new_empty ();
1589 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_REPLACE,
1590 GST_TAG_MAXIMUM_BITRATE, max_bitrate, NULL);
1592 if (avg_bitrate != 0) {
1593 if (stream->pending_tags == NULL)
1594 stream->pending_tags = gst_tag_list_new_empty ();
1595 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_REPLACE,
1596 GST_TAG_BITRATE, avg_bitrate, NULL);
1600 stream1_type_string = gst_rm_utils_read_string8 (data + offset,
1601 length - offset, &str_len);
1603 stream2_type_string = gst_rm_utils_read_string8 (data + offset,
1604 length - offset, &str_len);
1607 /* stream1_type_string for audio and video stream is a "put_whatever_you_want" field :
1609 * - "[The ]Video/Audio Stream" (File produced by an official Real encoder)
1610 * - "RealVideoPremierePlugIn-VIDEO/AUDIO" (File produced by Abobe Premiere)
1612 * so, we should not rely on it to know which stream type it is
1615 GST_LOG_OBJECT (rmdemux, "stream type: %s", stream1_type_string);
1616 GST_LOG_OBJECT (rmdemux, "MIME type=%s", stream2_type_string);
1618 if (strcmp (stream2_type_string, "video/x-pn-realvideo") == 0) {
1619 stream_type = GST_RMDEMUX_STREAM_VIDEO;
1620 } else if (strcmp (stream2_type_string,
1621 "video/x-pn-multirate-realvideo") == 0) {
1622 stream_type = GST_RMDEMUX_STREAM_VIDEO;
1623 } else if (strcmp (stream2_type_string, "audio/x-pn-realaudio") == 0) {
1624 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1625 } else if (strcmp (stream2_type_string,
1626 "audio/x-pn-multirate-realaudio") == 0) {
1627 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1628 } else if (strcmp (stream2_type_string,
1629 "audio/x-pn-multirate-realaudio-live") == 0) {
1630 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1631 } else if (strcmp (stream2_type_string, "audio/x-ralf-mpeg4-generic") == 0) {
1632 /* Another audio type found in the real testsuite */
1633 stream_type = GST_RMDEMUX_STREAM_AUDIO;
1634 } else if (strcmp (stream1_type_string, "") == 0 &&
1635 strcmp (stream2_type_string, "logical-fileinfo") == 0) {
1636 stream_type = GST_RMDEMUX_STREAM_FILEINFO;
1638 stream_type = GST_RMDEMUX_STREAM_UNKNOWN;
1639 GST_WARNING_OBJECT (rmdemux, "unknown stream type \"%s\",\"%s\"",
1640 stream1_type_string, stream2_type_string);
1642 g_free (stream1_type_string);
1643 g_free (stream2_type_string);
1647 stream->subtype = stream_type;
1648 switch (stream_type) {
1650 case GST_RMDEMUX_STREAM_VIDEO:
1651 /* RV10/RV20/RV30/RV40 => video/x-pn-realvideo, version=1,2,3,4 */
1652 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 8);
1653 stream->width = RMDEMUX_GUINT16_GET (data + offset + 12);
1654 stream->height = RMDEMUX_GUINT16_GET (data + offset + 14);
1655 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 16);
1656 stream->subformat = RMDEMUX_GUINT32_GET (data + offset + 26);
1657 stream->format = RMDEMUX_GUINT32_GET (data + offset + 30);
1658 stream->extra_data_size = length - (offset + 26);
1659 stream->extra_data = (guint8 *) data + offset + 26;
1660 /* Natural way to represent framerates here requires unsigned 32 bit
1661 * numerator, which we don't have. For the nasty case, approximate...
1664 guint32 numerator = RMDEMUX_GUINT16_GET (data + offset + 22) * 65536 +
1665 RMDEMUX_GUINT16_GET (data + offset + 24);
1666 if (numerator > G_MAXINT) {
1667 stream->framerate_numerator = (gint) (numerator >> 1);
1668 stream->framerate_denominator = 32768;
1670 stream->framerate_numerator = (gint) numerator;
1671 stream->framerate_denominator = 65536;
1675 GST_DEBUG_OBJECT (rmdemux,
1676 "Video stream with fourcc=%" GST_FOURCC_FORMAT
1677 " width=%d height=%d rate=%d framerate=%d/%d subformat=%x format=%x extra_data_size=%d",
1678 GST_FOURCC_ARGS (stream->fourcc), stream->width, stream->height,
1679 stream->rate, stream->framerate_numerator,
1680 stream->framerate_denominator, stream->subformat, stream->format,
1681 stream->extra_data_size);
1683 case GST_RMDEMUX_STREAM_AUDIO:{
1684 stream->version = RMDEMUX_GUINT16_GET (data + offset + 4);
1685 GST_INFO ("stream version = %u", stream->version);
1686 switch (stream->version) {
1688 stream->fourcc = GST_RM_AUD_14_4;
1689 stream->packet_size = 20;
1690 stream->rate = 8000;
1691 stream->n_channels = 1;
1692 stream->sample_width = 16;
1694 stream->leaf_size = 0;
1698 stream->flavor = RMDEMUX_GUINT16_GET (data + offset + 22);
1699 stream->packet_size = RMDEMUX_GUINT32_GET (data + offset + 24);
1700 /* stream->frame_size = RMDEMUX_GUINT32_GET (data + offset + 42); */
1701 stream->leaf_size = RMDEMUX_GUINT16_GET (data + offset + 44);
1702 stream->height = RMDEMUX_GUINT16_GET (data + offset + 40);
1703 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 48);
1704 stream->sample_width = RMDEMUX_GUINT16_GET (data + offset + 52);
1705 stream->n_channels = RMDEMUX_GUINT16_GET (data + offset + 54);
1706 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 62);
1707 stream->extra_data_size = RMDEMUX_GUINT32_GET (data + offset + 69);
1708 GST_DEBUG_OBJECT (rmdemux, "%u bytes of extra codec data",
1709 stream->extra_data_size);
1710 if (length - (offset + 73) >= stream->extra_data_size) {
1711 stream->extra_data = (guint8 *) data + offset + 73;
1713 GST_WARNING_OBJECT (rmdemux, "codec data runs beyond MDPR chunk");
1714 stream->extra_data_size = 0;
1718 stream->flavor = RMDEMUX_GUINT16_GET (data + offset + 22);
1719 stream->packet_size = RMDEMUX_GUINT32_GET (data + offset + 24);
1720 /* stream->frame_size = RMDEMUX_GUINT32_GET (data + offset + 42); */
1721 stream->leaf_size = RMDEMUX_GUINT16_GET (data + offset + 44);
1722 stream->height = RMDEMUX_GUINT16_GET (data + offset + 40);
1723 stream->rate = RMDEMUX_GUINT16_GET (data + offset + 54);
1724 stream->sample_width = RMDEMUX_GUINT16_GET (data + offset + 58);
1725 stream->n_channels = RMDEMUX_GUINT16_GET (data + offset + 60);
1726 stream->fourcc = RMDEMUX_FOURCC_GET (data + offset + 66);
1727 stream->extra_data_size = RMDEMUX_GUINT32_GET (data + offset + 74);
1728 GST_DEBUG_OBJECT (rmdemux, "%u bytes of extra codec data",
1729 stream->extra_data_size);
1730 if (length - (offset + 78) >= stream->extra_data_size) {
1731 stream->extra_data = (guint8 *) data + offset + 78;
1733 GST_WARNING_OBJECT (rmdemux, "codec data runs beyond MDPR chunk");
1734 stream->extra_data_size = 0;
1738 GST_WARNING_OBJECT (rmdemux, "Unhandled audio stream version %d",
1743 /* 14_4, 28_8, cook, dnet, sipr, raac, racp, ralf, atrc */
1744 GST_DEBUG_OBJECT (rmdemux,
1745 "Audio stream with rate=%d sample_width=%d n_channels=%d",
1746 stream->rate, stream->sample_width, stream->n_channels);
1750 case GST_RMDEMUX_STREAM_FILEINFO:
1754 /* Length of this section */
1755 GST_DEBUG_OBJECT (rmdemux, "length2: 0x%08x",
1756 RMDEMUX_GUINT32_GET (data + offset));
1759 /* Unknown : 00 00 00 00 */
1762 /* Number of variables that would follow (loop iterations) */
1763 element_nb = RMDEMUX_GUINT32_GET (data + offset);
1766 while (element_nb) {
1767 /* Category Id : 00 00 00 XX 00 00 */
1771 offset += re_skip_pascal_string (data + offset);
1773 /* Variable Value Type */
1774 /* 00 00 00 00 00 => integer/boolean, preceded by length */
1775 /* 00 00 00 02 00 => pascal string, preceded by length, no trailing \0 */
1778 /* Variable Value */
1779 offset += re_skip_pascal_string (data + offset);
1785 case GST_RMDEMUX_STREAM_UNKNOWN:
1790 gst_rmdemux_add_stream (rmdemux, stream);
1794 gst_rmdemux_parse_indx (GstRMDemux * rmdemux, const guint8 * data, int length)
1799 n = RMDEMUX_GUINT32_GET (data);
1800 id = RMDEMUX_GUINT16_GET (data + 4);
1801 rmdemux->index_offset = RMDEMUX_GUINT32_GET (data + 6);
1803 GST_DEBUG_OBJECT (rmdemux, "Number of indices=%d Stream ID=%d length=%d", n,
1806 /* Point to the next index_stream */
1807 rmdemux->index_stream = gst_rmdemux_get_stream_by_id (rmdemux, id);
1809 /* Return the length of the index */
1814 gst_rmdemux_parse_indx_data (GstRMDemux * rmdemux, const guint8 * data,
1819 GstRMDemuxIndex *index;
1821 /* The number of index records */
1824 if (rmdemux->index_stream == NULL)
1827 /* don't parse the index a second time when operating pull-based and
1828 * reaching the end of the file */
1829 if (rmdemux->index_stream->index_length > 0) {
1830 GST_DEBUG_OBJECT (rmdemux, "Already have an index for this stream");
1834 index = g_malloc (sizeof (GstRMDemuxIndex) * n);
1835 rmdemux->index_stream->index = index;
1836 rmdemux->index_stream->index_length = n;
1838 for (i = 0; i < n; i++) {
1839 index[i].timestamp = RMDEMUX_GUINT32_GET (data + 2) * GST_MSECOND;
1840 index[i].offset = RMDEMUX_GUINT32_GET (data + 6);
1842 GST_DEBUG_OBJECT (rmdemux, "Index found for timestamp=%f (at offset=%x)",
1843 gst_guint64_to_gdouble (index[i].timestamp) / GST_SECOND,
1850 gst_rmdemux_parse_data (GstRMDemux * rmdemux, const guint8 * data, int length)
1852 rmdemux->n_chunks = RMDEMUX_GUINT32_GET (data);
1853 rmdemux->data_offset = RMDEMUX_GUINT32_GET (data + 4);
1854 rmdemux->chunk_index = 0;
1855 GST_DEBUG_OBJECT (rmdemux, "Data chunk found with %d packets "
1856 "(next data at 0x%08x)", rmdemux->n_chunks, rmdemux->data_offset);
1860 gst_rmdemux_parse_cont (GstRMDemux * rmdemux, const guint8 * data, int length)
1864 tags = gst_rm_utils_read_tags (data, length, gst_rm_utils_read_string16);
1866 GST_LOG_OBJECT (rmdemux, "tags: %" GST_PTR_FORMAT, tags);
1868 rmdemux->pending_tags =
1869 gst_tag_list_merge (rmdemux->pending_tags, tags, GST_TAG_MERGE_APPEND);
1872 static GstFlowReturn
1873 gst_rmdemux_combine_flows (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
1878 /* store the value */
1879 stream->last_flow = ret;
1881 /* if it's success we can return the value right away */
1882 if (ret == GST_FLOW_OK)
1885 /* any other error that is not-linked can be returned right
1887 if (ret != GST_FLOW_NOT_LINKED)
1890 for (cur = rmdemux->streams; cur; cur = cur->next) {
1891 GstRMDemuxStream *ostream = cur->data;
1893 ret = ostream->last_flow;
1894 /* some other return value (must be SUCCESS but we can return
1895 * other values as well) */
1896 if (ret != GST_FLOW_NOT_LINKED)
1899 /* if we get here, all other pads were unlinked and we return
1900 * NOT_LINKED then */
1906 gst_rmdemux_stream_clear_cached_subpackets (GstRMDemux * rmdemux,
1907 GstRMDemuxStream * stream)
1909 if (stream->subpackets == NULL || stream->subpackets->len == 0)
1912 GST_DEBUG_OBJECT (rmdemux, "discarding %u previously collected subpackets",
1913 stream->subpackets->len);
1914 g_ptr_array_foreach (stream->subpackets, (GFunc) gst_mini_object_unref, NULL);
1915 g_ptr_array_set_size (stream->subpackets, 0);
1918 static GstFlowReturn
1919 gst_rmdemux_descramble_audio (GstRMDemux * rmdemux, GstRMDemuxStream * stream)
1921 GstFlowReturn ret = GST_FLOW_ERROR;
1924 guint packet_size = stream->packet_size;
1925 guint height = stream->subpackets->len;
1926 guint leaf_size = stream->leaf_size;
1929 g_assert (stream->height == height);
1931 GST_LOG ("packet_size = %u, leaf_size = %u, height= %u", packet_size,
1934 outbuf = gst_buffer_new_and_alloc (height * packet_size);
1935 outdata = gst_buffer_map (outbuf, NULL, NULL, GST_MAP_WRITE);
1937 for (p = 0; p < height; ++p) {
1938 GstBuffer *b = g_ptr_array_index (stream->subpackets, p);
1939 guint8 *b_data = gst_buffer_map (b, NULL, NULL, GST_MAP_READ);
1942 GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (b);
1944 for (x = 0; x < packet_size / leaf_size; ++x) {
1947 idx = height * x + ((height + 1) / 2) * (p % 2) + (p / 2);
1949 /* GST_LOG ("%3u => %3u", (height * p) + x, idx); */
1950 memcpy (outdata + leaf_size * idx, b_data + leaf_size * x, leaf_size);
1952 gst_buffer_unmap (b, b_data, -1);
1954 gst_buffer_unmap (outbuf, outdata, -1);
1956 /* some decoders, such as realaudiodec, need to be fed in packet units */
1957 for (p = 0; p < height; ++p) {
1961 gst_buffer_copy_region (outbuf, GST_BUFFER_COPY_ALL, p * packet_size,
1964 GST_LOG_OBJECT (rmdemux, "pushing buffer timestamp %" GST_TIME_FORMAT,
1965 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (subbuf)));
1967 if (stream->discont) {
1968 GST_BUFFER_FLAG_SET (subbuf, GST_BUFFER_FLAG_DISCONT);
1969 stream->discont = FALSE;
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_map (buf, NULL, NULL, GST_MAP_READ);
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_copy_region (buf, GST_BUFFER_COPY_ALL, index, len);
2030 GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
2034 if (stream->discont) {
2035 GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
2036 stream->discont = FALSE;
2038 res = gst_pad_push (stream->pad, outbuf);
2039 if (res != GST_FLOW_OK)
2042 gst_buffer_unmap (buf, data, -1);
2043 gst_buffer_unref (buf);
2047 static GstFlowReturn
2048 gst_rmdemux_descramble_sipr_audio (GstRMDemux * rmdemux,
2049 GstRMDemuxStream * stream)
2054 guint packet_size = stream->packet_size;
2055 guint height = stream->subpackets->len;
2058 g_assert (stream->height == height);
2060 GST_LOG ("packet_size = %u, leaf_size = %u, height= %u", packet_size,
2061 stream->leaf_size, height);
2063 outbuf = gst_buffer_new_and_alloc (height * packet_size);
2064 outdata = gst_buffer_map (outbuf, NULL, NULL, GST_MAP_WRITE);
2066 for (p = 0; p < height; ++p) {
2067 GstBuffer *b = g_ptr_array_index (stream->subpackets, p);
2070 GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (b);
2072 gst_buffer_extract (b, 0, outdata + packet_size * p, packet_size);
2074 gst_buffer_unmap (outbuf, outdata, -1);
2076 GST_LOG_OBJECT (rmdemux, "pushing buffer timestamp %" GST_TIME_FORMAT,
2077 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
2079 if (stream->discont) {
2080 GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
2081 stream->discont = FALSE;
2084 outbuf = gst_rm_utils_descramble_sipr_buffer (outbuf);
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_get_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)
2296 base = gst_buffer_map (in, &size, NULL, GST_MAP_READ);
2298 data = base + offset;
2301 /* if size <= 2, we want this method to return the same GstFlowReturn as it
2302 * was previously for that given stream. */
2303 ret = stream->last_flow;
2309 guint pkg_subseq = 0, pkg_seqnum = G_MAXUINT;
2310 guint fragment_size;
2311 GstBuffer *fragment;
2313 pkg_header = *data++;
2317 * bit 7: 1=last block in block chain
2318 * bit 6: 1=short header (only one block?)
2320 if ((pkg_header & 0xc0) == 0x40) {
2321 /* skip unknown byte */
2327 if ((pkg_header & 0x40) == 0) {
2328 pkg_subseq = (*data++) & 0x7f;
2335 PARSE_NUMBER (data, size, pkg_length, not_enough_data);
2338 PARSE_NUMBER (data, size, pkg_offset, not_enough_data);
2342 goto not_enough_data;
2344 pkg_seqnum = *data++;
2348 GST_DEBUG_OBJECT (rmdemux,
2349 "seq %d, subseq %d, offset %d, length %d, size %d, header %02x",
2350 pkg_seqnum, pkg_subseq, pkg_offset, pkg_length, size, pkg_header);
2352 /* calc size of fragment */
2353 if ((pkg_header & 0xc0) == 0x80) {
2354 fragment_size = pkg_offset;
2356 if ((pkg_header & 0xc0) == 0)
2357 fragment_size = size;
2359 fragment_size = pkg_length;
2361 GST_DEBUG_OBJECT (rmdemux, "fragment size %d", fragment_size);
2363 /* get the fragment */
2365 gst_buffer_copy_region (in, GST_BUFFER_COPY_ALL, data - base,
2368 if (pkg_subseq == 1) {
2369 GST_DEBUG_OBJECT (rmdemux, "start new fragment");
2370 gst_adapter_clear (stream->adapter);
2371 stream->frag_current = 0;
2372 stream->frag_count = 0;
2373 stream->frag_length = pkg_length;
2374 } else if (pkg_subseq == 0) {
2375 GST_DEBUG_OBJECT (rmdemux, "non fragmented packet");
2376 stream->frag_current = 0;
2377 stream->frag_count = 0;
2378 stream->frag_length = fragment_size;
2381 /* put fragment in adapter */
2382 gst_adapter_push (stream->adapter, fragment);
2383 stream->frag_offset[stream->frag_count] = stream->frag_current;
2384 stream->frag_current += fragment_size;
2385 stream->frag_count++;
2387 if (stream->frag_count > MAX_FRAGS)
2388 goto too_many_fragments;
2390 GST_DEBUG_OBJECT (rmdemux, "stored fragment in adapter %d/%d",
2391 stream->frag_current, stream->frag_length);
2393 /* flush fragment when complete */
2394 if (stream->frag_current >= stream->frag_length) {
2396 guint8 *outdata, *outbase;
2400 /* calculate header size, which is:
2401 * 1 byte for the number of fragments - 1
2402 * for each fragment:
2403 * 4 bytes 0x00000001 little endian
2404 * 4 bytes fragment offset
2406 * This is also the matroska header for realvideo, the decoder needs the
2407 * fragment offsets, both in ffmpeg and real .so, so we just give it that
2408 * in front of the data.
2410 header_size = 1 + (8 * (stream->frag_count));
2412 GST_DEBUG_OBJECT (rmdemux,
2413 "fragmented completed. count %d, header_size %u", stream->frag_count,
2416 avail = gst_adapter_available (stream->adapter);
2418 out = gst_buffer_new_and_alloc (header_size + avail);
2419 outbase = gst_buffer_map (out, NULL, NULL, GST_MAP_WRITE);
2423 *outdata++ = stream->frag_count - 1;
2424 for (i = 0; i < stream->frag_count; i++) {
2425 GST_WRITE_UINT32_LE (outdata, 0x00000001);
2427 GST_WRITE_UINT32_LE (outdata, stream->frag_offset[i]);
2431 /* copy packet data after the header now */
2432 gst_adapter_copy (stream->adapter, outdata, 0, avail);
2433 gst_adapter_flush (stream->adapter, avail);
2435 stream->frag_current = 0;
2436 stream->frag_count = 0;
2437 stream->frag_length = 0;
2439 if (timestamp != -1) {
2440 if (rmdemux->first_ts != -1 && timestamp > rmdemux->first_ts)
2441 timestamp -= rmdemux->first_ts;
2445 if (rmdemux->base_ts != -1)
2446 timestamp += rmdemux->base_ts;
2449 gst_rmdemux_fix_timestamp (rmdemux, stream, outdata, timestamp);
2451 gst_buffer_unmap (out, outbase, -1);
2453 GST_BUFFER_TIMESTAMP (out) = timestamp;
2455 GST_LOG_OBJECT (rmdemux, "pushing timestamp %" GST_TIME_FORMAT,
2456 GST_TIME_ARGS (timestamp));
2458 if (stream->discont) {
2459 GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DISCONT);
2460 stream->discont = FALSE;
2464 GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DELTA_UNIT);
2467 ret = gst_pad_push (stream->pad, out);
2468 ret = gst_rmdemux_combine_flows (rmdemux, stream, ret);
2469 if (ret != GST_FLOW_OK)
2472 timestamp = GST_CLOCK_TIME_NONE;
2474 data += fragment_size;
2475 size -= fragment_size;
2477 GST_DEBUG_OBJECT (rmdemux, "%d bytes left", size);
2480 gst_buffer_unmap (in, base, -1);
2481 gst_buffer_unref (in);
2488 GST_ELEMENT_WARNING (rmdemux, STREAM, DECODE, ("Skipping bad packet."),
2495 GST_ELEMENT_ERROR (rmdemux, STREAM, DECODE,
2496 ("Got more fragments (%u) than can be handled (%u)",
2497 stream->frag_count, MAX_FRAGS), (NULL));
2498 ret = GST_FLOW_ERROR;
2503 static GstFlowReturn
2504 gst_rmdemux_parse_audio_packet (GstRMDemux * rmdemux, GstRMDemuxStream * stream,
2505 GstBuffer * in, guint offset, guint16 version,
2506 GstClockTime timestamp, gboolean key)
2511 buffer = gst_buffer_copy_region (in, GST_BUFFER_COPY_MEMORY, offset, -1);
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_get_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_map (in, &size, NULL, GST_MAP_READ);
2561 id = RMDEMUX_GUINT16_GET (data);
2563 stream = gst_rmdemux_get_stream_by_id (rmdemux, id);
2564 if (!stream || !stream->pad)
2565 goto unknown_stream;
2567 /* timestamp in Msec */
2568 ts = RMDEMUX_GUINT32_GET (data + 2);
2569 timestamp = ts * GST_MSECOND;
2571 rmdemux->segment.position = timestamp;
2573 GST_LOG_OBJECT (rmdemux, "Parsing a packet for stream=%d, timestamp=%"
2574 GST_TIME_FORMAT ", size %u, version=%d, ts=%u", id,
2575 GST_TIME_ARGS (timestamp), size, version, ts);
2577 if (rmdemux->first_ts == GST_CLOCK_TIME_NONE) {
2578 GST_DEBUG_OBJECT (rmdemux, "First timestamp: %" GST_TIME_FORMAT,
2579 GST_TIME_ARGS (timestamp));
2580 rmdemux->first_ts = timestamp;
2583 /* skip stream_id and timestamp */
2588 flags = GST_READ_UINT8 (data + 1);
2593 /* version 1 has an extra byte */
2598 offset = data - base;
2599 gst_buffer_unmap (in, base, -1);
2601 key = (flags & 0x02) != 0;
2602 GST_DEBUG_OBJECT (rmdemux, "flags %d, Keyframe %d", flags, key);
2604 if (rmdemux->need_newsegment) {
2607 event = gst_event_new_segment (&rmdemux->segment);
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_rmdemux_send_event (rmdemux,
2617 gst_event_new_tag (rmdemux->pending_tags));
2618 rmdemux->pending_tags = NULL;
2622 if (stream->pending_tags != NULL) {
2623 GST_LOG_OBJECT (stream->pad, "tags %" GST_PTR_FORMAT, stream->pending_tags);
2624 gst_pad_push_event (stream->pad, gst_event_new_tag (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);
2633 gst_buffer_unref (in);
2637 /* do special headers */
2638 if (stream->subtype == GST_RMDEMUX_STREAM_VIDEO) {
2640 gst_rmdemux_parse_video_packet (rmdemux, stream, in, offset,
2641 version, timestamp, key);
2642 } else if (stream->subtype == GST_RMDEMUX_STREAM_AUDIO) {
2644 gst_rmdemux_parse_audio_packet (rmdemux, stream, in, offset,
2645 version, timestamp, key);
2647 gst_buffer_unref (in);
2651 cret = gst_rmdemux_combine_flows (rmdemux, stream, ret);
2659 GST_WARNING_OBJECT (rmdemux, "No stream for stream id %d in parsing "
2661 gst_buffer_unmap (in, base, -1);
2662 gst_buffer_unref (in);
2668 gst_rmdemux_plugin_init (GstPlugin * plugin)
2670 return gst_element_register (plugin, "rmdemux",
2671 GST_RANK_PRIMARY, GST_TYPE_RMDEMUX);