1 /* GStreamer ASF/WMV/WMA demuxer
2 * Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) 2006-2009 Tim-Philipp Müller <tim centricular net>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
24 * stop if at end of segment if != end of file, ie. demux->segment.stop
26 * - fix packet parsing:
27 * there's something wrong with timestamps for packets with keyframes,
35 #include <gst/gstutils.h>
36 #include <gst/base/gstbytereader.h>
37 #include <gst/base/gsttypefindhelper.h>
38 #include <gst/riff/riff-media.h>
39 #include <gst/tag/tag.h>
40 #include <gst/gst-i18n-plugin.h>
41 #include <gst/video/video.h>
46 #include "gstasfdemux.h"
47 #include "asfheaders.h"
48 #include "asfpacket.h"
50 static GstStaticPadTemplate gst_asf_demux_sink_template =
51 GST_STATIC_PAD_TEMPLATE ("sink",
54 GST_STATIC_CAPS ("video/x-ms-asf")
57 static GstStaticPadTemplate audio_src_template =
58 GST_STATIC_PAD_TEMPLATE ("audio_%u",
63 static GstStaticPadTemplate video_src_template =
64 GST_STATIC_PAD_TEMPLATE ("video_%u",
69 /* size of an ASF object header, ie. GUID (16 bytes) + object size (8 bytes) */
70 #define ASF_OBJECT_HEADER_SIZE (16+8)
72 /* FIXME: get rid of this */
73 /* abuse this GstFlowReturn enum for internal usage */
74 #define ASF_FLOW_NEED_MORE_DATA 99
76 #define gst_asf_get_flow_name(flow) \
77 (flow == ASF_FLOW_NEED_MORE_DATA) ? \
78 "need-more-data" : gst_flow_get_name (flow)
80 GST_DEBUG_CATEGORY (asfdemux_dbg);
82 static GstStateChangeReturn gst_asf_demux_change_state (GstElement * element,
83 GstStateChange transition);
84 static gboolean gst_asf_demux_element_send_event (GstElement * element,
86 static gboolean gst_asf_demux_send_event_unlocked (GstASFDemux * demux,
88 static gboolean gst_asf_demux_handle_src_query (GstPad * pad,
89 GstObject * parent, GstQuery * query);
90 static GstFlowReturn gst_asf_demux_chain (GstPad * pad, GstObject * parent,
92 static gboolean gst_asf_demux_sink_event (GstPad * pad, GstObject * parent,
94 static GstFlowReturn gst_asf_demux_process_object (GstASFDemux * demux,
95 guint8 ** p_data, guint64 * p_size);
96 static gboolean gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent);
97 static gboolean gst_asf_demux_activate_mode (GstPad * sinkpad,
98 GstObject * parent, GstPadMode mode, gboolean active);
99 static void gst_asf_demux_loop (GstASFDemux * demux);
101 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux);
102 static gboolean gst_asf_demux_pull_headers (GstASFDemux * demux,
103 GstFlowReturn * pflow);
104 static void gst_asf_demux_pull_indices (GstASFDemux * demux);
105 static void gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * asf);
107 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data);
108 static void gst_asf_demux_descramble_buffer (GstASFDemux * demux,
109 AsfStream * stream, GstBuffer ** p_buffer);
110 static void gst_asf_demux_activate_stream (GstASFDemux * demux,
112 static GstStructure *gst_asf_demux_get_metadata_for_stream (GstASFDemux * d,
114 static GstFlowReturn gst_asf_demux_push_complete_payloads (GstASFDemux * demux,
117 #define gst_asf_demux_parent_class parent_class
118 G_DEFINE_TYPE (GstASFDemux, gst_asf_demux, GST_TYPE_ELEMENT);
121 gst_asf_demux_class_init (GstASFDemuxClass * klass)
123 GstElementClass *gstelement_class;
125 gstelement_class = (GstElementClass *) klass;
127 gst_element_class_set_static_metadata (gstelement_class, "ASF Demuxer",
129 "Demultiplexes ASF Streams", "Owen Fraser-Green <owen@discobabe.net>");
131 gst_element_class_add_pad_template (gstelement_class,
132 gst_static_pad_template_get (&audio_src_template));
133 gst_element_class_add_pad_template (gstelement_class,
134 gst_static_pad_template_get (&video_src_template));
135 gst_element_class_add_pad_template (gstelement_class,
136 gst_static_pad_template_get (&gst_asf_demux_sink_template));
138 gstelement_class->change_state =
139 GST_DEBUG_FUNCPTR (gst_asf_demux_change_state);
140 gstelement_class->send_event =
141 GST_DEBUG_FUNCPTR (gst_asf_demux_element_send_event);
145 gst_asf_demux_free_stream (GstASFDemux * demux, AsfStream * stream)
147 gst_caps_replace (&stream->caps, NULL);
148 if (stream->pending_tags) {
149 gst_tag_list_unref (stream->pending_tags);
150 stream->pending_tags = NULL;
152 if (stream->streamheader) {
153 gst_buffer_unref (stream->streamheader);
154 stream->streamheader = NULL;
157 if (stream->active) {
158 gst_element_remove_pad (GST_ELEMENT_CAST (demux), stream->pad);
159 gst_flow_combiner_remove_pad (demux->flowcombiner, stream->pad);
161 gst_object_unref (stream->pad);
165 if (stream->payloads) {
166 while (stream->payloads->len > 0) {
170 last = stream->payloads->len - 1;
171 payload = &g_array_index (stream->payloads, AsfPayload, last);
172 gst_buffer_replace (&payload->buf, NULL);
173 g_array_remove_index (stream->payloads, last);
175 g_array_free (stream->payloads, TRUE);
176 stream->payloads = NULL;
178 if (stream->ext_props.valid) {
179 g_free (stream->ext_props.payload_extensions);
180 stream->ext_props.payload_extensions = NULL;
185 gst_asf_demux_reset (GstASFDemux * demux, gboolean chain_reset)
187 GST_LOG_OBJECT (demux, "resetting");
189 gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
190 demux->segment_running = FALSE;
191 if (demux->adapter && !chain_reset) {
192 gst_adapter_clear (demux->adapter);
193 g_object_unref (demux->adapter);
194 demux->adapter = NULL;
196 if (demux->taglist) {
197 gst_tag_list_unref (demux->taglist);
198 demux->taglist = NULL;
200 if (demux->metadata) {
201 gst_caps_unref (demux->metadata);
202 demux->metadata = NULL;
204 if (demux->global_metadata) {
205 gst_structure_free (demux->global_metadata);
206 demux->global_metadata = NULL;
208 if (demux->mut_ex_streams) {
209 g_slist_free (demux->mut_ex_streams);
210 demux->mut_ex_streams = NULL;
213 demux->state = GST_ASF_DEMUX_STATE_HEADER;
214 g_free (demux->objpath);
215 demux->objpath = NULL;
216 g_strfreev (demux->languages);
217 demux->languages = NULL;
218 demux->num_languages = 0;
219 g_slist_foreach (demux->ext_stream_props, (GFunc) gst_mini_object_unref,
221 g_slist_free (demux->ext_stream_props);
222 demux->ext_stream_props = NULL;
224 while (demux->old_num_streams > 0) {
225 gst_asf_demux_free_stream (demux,
226 &demux->old_stream[demux->old_num_streams - 1]);
227 --demux->old_num_streams;
229 memset (demux->old_stream, 0, sizeof (demux->old_stream));
230 demux->old_num_streams = 0;
232 /* when resetting for a new chained asf, we don't want to remove the pads
233 * before adding the new ones */
235 memcpy (demux->old_stream, demux->stream, sizeof (demux->stream));
236 demux->old_num_streams = demux->num_streams;
237 demux->num_streams = 0;
240 while (demux->num_streams > 0) {
241 gst_asf_demux_free_stream (demux, &demux->stream[demux->num_streams - 1]);
242 --demux->num_streams;
244 memset (demux->stream, 0, sizeof (demux->stream));
246 /* do not remove those for not adding pads with same name */
247 demux->num_audio_streams = 0;
248 demux->num_video_streams = 0;
249 demux->have_group_id = FALSE;
250 demux->group_id = G_MAXUINT;
252 demux->num_streams = 0;
253 demux->activated_streams = FALSE;
254 demux->first_ts = GST_CLOCK_TIME_NONE;
255 demux->segment_ts = GST_CLOCK_TIME_NONE;
258 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
259 demux->state = GST_ASF_DEMUX_STATE_HEADER;
260 demux->seekable = FALSE;
261 demux->broadcast = FALSE;
262 demux->sidx_interval = 0;
263 demux->sidx_num_entries = 0;
264 g_free (demux->sidx_entries);
265 demux->sidx_entries = NULL;
267 demux->speed_packets = 1;
269 demux->asf_3D_mode = GST_ASF_3D_NONE;
272 GST_LOG_OBJECT (demux, "Restarting");
273 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
274 demux->need_newsegment = TRUE;
275 demux->segment_seqnum = 0;
276 demux->segment_running = FALSE;
277 demux->accurate = FALSE;
278 demux->metadata = gst_caps_new_empty ();
279 demux->global_metadata = gst_structure_new_empty ("metadata");
280 demux->data_size = 0;
281 demux->data_offset = 0;
282 demux->index_offset = 0;
284 demux->base_offset = 0;
287 g_slist_free (demux->other_streams);
288 demux->other_streams = NULL;
292 gst_asf_demux_init (GstASFDemux * demux)
295 gst_pad_new_from_static_template (&gst_asf_demux_sink_template, "sink");
296 gst_pad_set_chain_function (demux->sinkpad,
297 GST_DEBUG_FUNCPTR (gst_asf_demux_chain));
298 gst_pad_set_event_function (demux->sinkpad,
299 GST_DEBUG_FUNCPTR (gst_asf_demux_sink_event));
300 gst_pad_set_activate_function (demux->sinkpad,
301 GST_DEBUG_FUNCPTR (gst_asf_demux_activate));
302 gst_pad_set_activatemode_function (demux->sinkpad,
303 GST_DEBUG_FUNCPTR (gst_asf_demux_activate_mode));
304 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
306 /* set initial state */
307 gst_asf_demux_reset (demux, FALSE);
311 gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent)
316 query = gst_query_new_scheduling ();
318 if (!gst_pad_peer_query (sinkpad, query)) {
319 gst_query_unref (query);
323 pull_mode = gst_query_has_scheduling_mode_with_flags (query,
324 GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
325 gst_query_unref (query);
330 GST_DEBUG_OBJECT (sinkpad, "activating pull");
331 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
335 GST_DEBUG_OBJECT (sinkpad, "activating push");
336 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
341 gst_asf_demux_activate_mode (GstPad * sinkpad, GstObject * parent,
342 GstPadMode mode, gboolean active)
347 demux = GST_ASF_DEMUX (parent);
350 case GST_PAD_MODE_PUSH:
351 demux->state = GST_ASF_DEMUX_STATE_HEADER;
352 demux->streaming = TRUE;
355 case GST_PAD_MODE_PULL:
357 demux->state = GST_ASF_DEMUX_STATE_HEADER;
358 demux->streaming = FALSE;
360 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_asf_demux_loop,
363 res = gst_pad_stop_task (sinkpad);
374 gst_asf_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
379 demux = GST_ASF_DEMUX (parent);
381 GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
382 switch (GST_EVENT_TYPE (event)) {
383 case GST_EVENT_SEGMENT:{
384 const GstSegment *segment;
386 gst_event_parse_segment (event, &segment);
388 if (segment->format == GST_FORMAT_BYTES) {
389 if (demux->packet_size && segment->start > demux->data_offset)
390 demux->packet = (segment->start - demux->data_offset) /
394 } else if (segment->format == GST_FORMAT_TIME) {
395 /* do not know packet position, not really a problem */
398 GST_WARNING_OBJECT (demux, "unsupported newsegment format, ignoring");
399 gst_event_unref (event);
403 /* record upstream segment for interpolation */
404 if (segment->format != demux->in_segment.format)
405 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
406 gst_segment_copy_into (segment, &demux->in_segment);
408 /* in either case, clear some state and generate newsegment later on */
409 GST_OBJECT_LOCK (demux);
410 demux->segment_ts = GST_CLOCK_TIME_NONE;
411 demux->in_gap = GST_CLOCK_TIME_NONE;
412 demux->need_newsegment = TRUE;
413 demux->segment_seqnum = gst_event_get_seqnum (event);
414 gst_asf_demux_reset_stream_state_after_discont (demux);
415 GST_OBJECT_UNLOCK (demux);
417 gst_event_unref (event);
423 if (demux->state == GST_ASF_DEMUX_STATE_HEADER) {
424 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
425 (_("This stream contains no data.")),
426 ("got eos and didn't receive a complete header object"));
429 flow = gst_asf_demux_push_complete_payloads (demux, TRUE);
430 if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
431 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
432 (_("Internal data stream error.")),
433 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
437 GST_OBJECT_LOCK (demux);
438 gst_adapter_clear (demux->adapter);
439 GST_OBJECT_UNLOCK (demux);
440 gst_asf_demux_send_event_unlocked (demux, event);
444 case GST_EVENT_FLUSH_STOP:
445 GST_OBJECT_LOCK (demux);
446 gst_asf_demux_reset_stream_state_after_discont (demux);
447 GST_OBJECT_UNLOCK (demux);
448 gst_asf_demux_send_event_unlocked (demux, event);
449 /* upon activation, latency is no longer introduced, e.g. after seek */
450 if (demux->activated_streams)
455 ret = gst_pad_event_default (pad, parent, event);
463 gst_asf_demux_seek_index_lookup (GstASFDemux * demux, guint * packet,
464 GstClockTime seek_time, GstClockTime * p_idx_time, guint * speed,
465 gboolean next, gboolean * eos)
467 GstClockTime idx_time;
473 if (G_UNLIKELY (demux->sidx_num_entries == 0 || demux->sidx_interval == 0))
476 idx = (guint) ((seek_time + demux->preroll) / demux->sidx_interval);
479 /* if we want the next keyframe, we have to go forward till we find
480 a different packet number */
482 if (idx >= demux->sidx_num_entries - 1) {
483 /* If we get here, we're asking for next keyframe after the last one. There isn't one. */
488 for (idx2 = idx + 1; idx2 < demux->sidx_num_entries; ++idx2) {
489 if (demux->sidx_entries[idx].packet != demux->sidx_entries[idx2].packet) {
496 if (G_UNLIKELY (idx >= demux->sidx_num_entries)) {
502 *packet = demux->sidx_entries[idx].packet;
504 *speed = demux->sidx_entries[idx].count;
506 /* so we get closer to the actual time of the packet ... actually, let's not
507 * do this, since we throw away superfluous payloads before the seek position
508 * anyway; this way, our key unit seek 'snap resolution' is a bit better
509 * (ie. same as index resolution) */
511 while (idx > 0 && demux->sidx_entries[idx-1] == demux->sidx_entries[idx])
515 idx_time = demux->sidx_interval * idx;
516 if (G_LIKELY (idx_time >= demux->preroll))
517 idx_time -= demux->preroll;
519 GST_DEBUG_OBJECT (demux, "%" GST_TIME_FORMAT " => packet %u at %"
520 GST_TIME_FORMAT, GST_TIME_ARGS (seek_time), *packet,
521 GST_TIME_ARGS (idx_time));
523 if (G_LIKELY (p_idx_time))
524 *p_idx_time = idx_time;
530 gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * demux)
534 gst_adapter_clear (demux->adapter);
536 GST_DEBUG_OBJECT (demux, "reset stream state");
538 gst_flow_combiner_reset (demux->flowcombiner);
539 for (n = 0; n < demux->num_streams; n++) {
540 demux->stream[n].discont = TRUE;
541 demux->stream[n].first_buffer = TRUE;
543 while (demux->stream[n].payloads->len > 0) {
547 last = demux->stream[n].payloads->len - 1;
548 payload = &g_array_index (demux->stream[n].payloads, AsfPayload, last);
549 gst_buffer_replace (&payload->buf, NULL);
550 g_array_remove_index (demux->stream[n].payloads, last);
556 gst_asf_demux_mark_discont (GstASFDemux * demux)
560 GST_DEBUG_OBJECT (demux, "Mark stream discont");
562 for (n = 0; n < demux->num_streams; n++)
563 demux->stream[n].discont = TRUE;
566 /* do a seek in push based mode */
568 gst_asf_demux_handle_seek_push (GstASFDemux * demux, GstEvent * event)
573 GstSeekType cur_type, stop_type;
577 GstEvent *byte_event;
579 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
582 stop_type = GST_SEEK_TYPE_NONE;
585 GST_DEBUG_OBJECT (demux, "seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (cur));
587 /* determine packet, by index or by estimation */
588 if (!gst_asf_demux_seek_index_lookup (demux, &packet, cur, NULL, NULL, FALSE,
591 (guint) gst_util_uint64_scale (demux->num_packets, cur,
595 if (packet > demux->num_packets) {
596 GST_DEBUG_OBJECT (demux, "could not determine packet to seek to, "
601 GST_DEBUG_OBJECT (demux, "seeking to packet %d", packet);
603 cur = demux->data_offset + ((guint64) packet * demux->packet_size);
605 GST_DEBUG_OBJECT (demux, "Pushing BYTE seek rate %g, "
606 "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT, rate, cur, stop);
607 /* BYTE seek event */
608 byte_event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type,
609 cur, stop_type, stop);
610 gst_event_set_seqnum (byte_event, gst_event_get_seqnum (event));
611 res = gst_pad_push_event (demux->sinkpad, byte_event);
617 gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
619 GstClockTime idx_time;
622 GstSeekType cur_type, stop_type;
624 gboolean only_need_update;
625 gboolean keyunit_sync, after, before, next;
630 guint packet, speed_count = 1;
635 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
638 if (G_UNLIKELY (format != GST_FORMAT_TIME)) {
639 GST_LOG_OBJECT (demux, "seeking is only supported in TIME format");
643 /* upstream might handle TIME seek, e.g. mms or rtsp, or not, e.g. http,
644 * so first try to let it handle the seek event. */
645 if (gst_pad_push_event (demux->sinkpad, gst_event_ref (event)))
648 if (G_UNLIKELY (demux->seekable == FALSE || demux->packet_size == 0 ||
649 demux->num_packets == 0 || demux->play_time == 0)) {
650 GST_LOG_OBJECT (demux, "stream is not seekable");
654 if (G_UNLIKELY (!demux->activated_streams)) {
655 GST_LOG_OBJECT (demux, "streams not yet activated, ignoring seek");
659 if (G_UNLIKELY (rate <= 0.0)) {
660 GST_LOG_OBJECT (demux, "backward playback is not supported yet");
664 seqnum = gst_event_get_seqnum (event);
665 flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
667 ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
668 keyunit_sync = ((flags & GST_SEEK_FLAG_KEY_UNIT) == GST_SEEK_FLAG_KEY_UNIT);
669 after = ((flags & GST_SEEK_FLAG_SNAP_AFTER) == GST_SEEK_FLAG_SNAP_AFTER);
670 before = ((flags & GST_SEEK_FLAG_SNAP_BEFORE) == GST_SEEK_FLAG_SNAP_BEFORE);
671 next = after && !before;
673 if (G_UNLIKELY (demux->streaming)) {
674 /* support it safely needs more segment handling, e.g. closing etc */
676 GST_LOG_OBJECT (demux, "streaming; non-flushing seek not supported");
679 /* we can (re)construct the start later on, but not the end */
680 if (stop_type != GST_SEEK_TYPE_NONE &&
681 (stop_type != GST_SEEK_TYPE_SET || GST_CLOCK_TIME_IS_VALID (stop))) {
682 GST_LOG_OBJECT (demux, "streaming; end position must be NONE");
685 return gst_asf_demux_handle_seek_push (demux, event);
688 /* unlock the streaming thread */
689 if (G_LIKELY (flush)) {
690 fevent = gst_event_new_flush_start ();
692 gst_event_set_seqnum (fevent, seqnum);
693 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
694 gst_asf_demux_send_event_unlocked (demux, fevent);
696 gst_pad_pause_task (demux->sinkpad);
699 /* grab the stream lock so that streaming cannot continue, for
700 * non flushing seeks when the element is in PAUSED this could block
702 GST_PAD_STREAM_LOCK (demux->sinkpad);
704 /* we now can stop flushing, since we have the stream lock now */
705 fevent = gst_event_new_flush_stop (TRUE);
706 gst_event_set_seqnum (fevent, seqnum);
707 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
709 if (G_LIKELY (flush))
710 gst_asf_demux_send_event_unlocked (demux, fevent);
712 gst_event_unref (fevent);
714 /* operating on copy of segment until we know the seek worked */
715 segment = demux->segment;
717 if (G_UNLIKELY (demux->segment_running && !flush)) {
718 GstSegment newsegment;
721 /* create the segment event to close the current segment */
722 gst_segment_copy_into (&segment, &newsegment);
723 newseg = gst_event_new_segment (&newsegment);
724 gst_event_set_seqnum (newseg, seqnum);
726 gst_asf_demux_send_event_unlocked (demux, newseg);
729 gst_segment_do_seek (&segment, rate, format, flags, cur_type,
730 cur, stop_type, stop, &only_need_update);
732 GST_DEBUG_OBJECT (demux, "seeking to time %" GST_TIME_FORMAT ", segment: "
733 "%" GST_SEGMENT_FORMAT, GST_TIME_ARGS (segment.start), &segment);
735 if (cur_type != GST_SEEK_TYPE_SET)
736 seek_time = segment.start;
740 /* FIXME: should check the KEY_UNIT flag; need to adjust position to
741 * real start of data and segment_start to indexed time for key unit seek*/
742 if (G_UNLIKELY (!gst_asf_demux_seek_index_lookup (demux, &packet, seek_time,
743 &idx_time, &speed_count, next, &eos))) {
747 demux->packet = demux->num_packets;
751 /* First try to query our source to see if it can convert for us. This is
752 the case when our source is an mms stream, notice that in this case
753 gstmms will do a time based seek to get the byte offset, this is not a
754 problem as the seek to this offset needs to happen anway. */
755 if (gst_pad_peer_query_convert (demux->sinkpad, GST_FORMAT_TIME, seek_time,
756 GST_FORMAT_BYTES, &offset)) {
757 packet = (offset - demux->data_offset) / demux->packet_size;
758 GST_LOG_OBJECT (demux, "convert %" GST_TIME_FORMAT
759 " to bytes query result: %" G_GINT64_FORMAT ", data_ofset: %"
760 G_GINT64_FORMAT ", packet_size: %u," " resulting packet: %u\n",
761 GST_TIME_ARGS (seek_time), offset, demux->data_offset,
762 demux->packet_size, packet);
764 /* FIXME: For streams containing video, seek to an earlier position in
765 * the hope of hitting a keyframe and let the sinks throw away the stuff
766 * before the segment start. For audio-only this is unnecessary as every
768 if (flush && (demux->accurate || (keyunit_sync && !next))
769 && demux->num_video_streams > 0) {
770 seek_time -= 5 * GST_SECOND;
775 packet = (guint) gst_util_uint64_scale (demux->num_packets,
776 seek_time, demux->play_time);
778 if (packet > demux->num_packets)
779 packet = demux->num_packets;
782 if (G_LIKELY (keyunit_sync)) {
783 GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
784 GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
785 GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
786 segment.start = idx_time;
787 segment.position = idx_time;
788 segment.time = idx_time;
792 GST_DEBUG_OBJECT (demux, "seeking to packet %u (%d)", packet, speed_count);
794 GST_OBJECT_LOCK (demux);
795 demux->segment = segment;
796 demux->packet = packet;
797 demux->need_newsegment = TRUE;
798 demux->segment_seqnum = seqnum;
799 demux->speed_packets = speed_count;
800 gst_asf_demux_reset_stream_state_after_discont (demux);
801 GST_OBJECT_UNLOCK (demux);
804 /* restart our task since it might have been stopped when we did the flush */
805 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_asf_demux_loop,
808 /* streaming can continue now */
809 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
815 gst_asf_demux_handle_src_event (GstPad * pad, GstObject * parent,
821 demux = GST_ASF_DEMUX (parent);
823 switch (GST_EVENT_TYPE (event)) {
825 GST_LOG_OBJECT (pad, "seek event");
826 ret = gst_asf_demux_handle_seek_event (demux, event);
827 gst_event_unref (event);
830 case GST_EVENT_NAVIGATION:
831 /* just drop these two silently */
832 gst_event_unref (event);
836 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
837 ret = gst_pad_event_default (pad, parent, event);
844 static inline guint32
845 gst_asf_demux_identify_guid (const ASFGuidHash * guids, ASFGuid * guid)
849 ret = gst_asf_identify_guid (guids, guid);
851 GST_LOG ("%s 0x%08x-0x%08x-0x%08x-0x%08x",
852 gst_asf_get_guid_nick (guids, ret),
853 guid->v1, guid->v2, guid->v3, guid->v4);
865 /* expect is true when the user is expeting an object,
866 * when false, it will give no warnings if the object
870 asf_demux_peek_object (GstASFDemux * demux, const guint8 * data,
871 guint data_len, AsfObject * object, gboolean expect)
875 if (data_len < ASF_OBJECT_HEADER_SIZE)
878 guid.v1 = GST_READ_UINT32_LE (data + 0);
879 guid.v2 = GST_READ_UINT32_LE (data + 4);
880 guid.v3 = GST_READ_UINT32_LE (data + 8);
881 guid.v4 = GST_READ_UINT32_LE (data + 12);
883 object->size = GST_READ_UINT64_LE (data + 16);
885 /* FIXME: make asf_demux_identify_object_guid() */
886 object->id = gst_asf_demux_identify_guid (asf_object_guids, &guid);
887 if (object->id == ASF_OBJ_UNDEFINED && expect) {
888 GST_WARNING_OBJECT (demux, "Unknown object %08x-%08x-%08x-%08x",
889 guid.v1, guid.v2, guid.v3, guid.v4);
896 gst_asf_demux_release_old_pads (GstASFDemux * demux)
898 GST_DEBUG_OBJECT (demux, "Releasing old pads");
900 while (demux->old_num_streams > 0) {
901 gst_pad_push_event (demux->old_stream[demux->old_num_streams - 1].pad,
902 gst_event_new_eos ());
903 gst_asf_demux_free_stream (demux,
904 &demux->old_stream[demux->old_num_streams - 1]);
905 --demux->old_num_streams;
907 memset (demux->old_stream, 0, sizeof (demux->old_stream));
908 demux->old_num_streams = 0;
912 gst_asf_demux_chain_headers (GstASFDemux * demux)
916 guint8 *header_data, *data = NULL;
917 const guint8 *cdata = NULL;
920 cdata = (guint8 *) gst_adapter_map (demux->adapter, ASF_OBJECT_HEADER_SIZE);
924 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
925 if (obj.id != ASF_OBJ_HEADER)
928 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
930 /* + 50 for non-packet data at beginning of ASF_OBJ_DATA */
931 if (gst_adapter_available (demux->adapter) < obj.size + 50)
934 data = gst_adapter_take (demux->adapter, obj.size + 50);
937 header_size = obj.size;
938 flow = gst_asf_demux_process_object (demux, &header_data, &header_size);
939 if (flow != GST_FLOW_OK)
942 /* calculate where the packet data starts */
943 demux->data_offset = obj.size + 50;
945 /* now parse the beginning of the ASF_OBJ_DATA object */
946 if (!gst_asf_demux_parse_data_object_start (demux, data + obj.size))
949 if (demux->num_streams == 0)
958 GST_LOG_OBJECT (demux, "not enough data in adapter yet");
965 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
966 ("This doesn't seem to be an ASF file"));
968 return GST_FLOW_ERROR;
973 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
974 ("header parsing failed, or no streams found, flow = %s",
975 gst_flow_get_name (flow)));
977 return GST_FLOW_ERROR;
982 gst_asf_demux_pull_data (GstASFDemux * demux, guint64 offset, guint size,
983 GstBuffer ** p_buf, GstFlowReturn * p_flow)
988 GST_LOG_OBJECT (demux, "pulling buffer at %" G_GUINT64_FORMAT "+%u",
991 flow = gst_pad_pull_range (demux->sinkpad, offset, size, p_buf);
993 if (G_LIKELY (p_flow))
996 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
997 GST_DEBUG_OBJECT (demux, "flow %s pulling buffer at %" G_GUINT64_FORMAT
998 "+%u", gst_flow_get_name (flow), offset, size);
1003 g_assert (*p_buf != NULL);
1005 buffer_size = gst_buffer_get_size (*p_buf);
1006 if (G_UNLIKELY (buffer_size < size)) {
1007 GST_DEBUG_OBJECT (demux, "short read pulling buffer at %" G_GUINT64_FORMAT
1008 "+%u (got only %" G_GSIZE_FORMAT " bytes)", offset, size, buffer_size);
1009 gst_buffer_unref (*p_buf);
1010 if (G_LIKELY (p_flow))
1011 *p_flow = GST_FLOW_EOS;
1020 gst_asf_demux_pull_indices (GstASFDemux * demux)
1022 GstBuffer *buf = NULL;
1026 offset = demux->index_offset;
1028 if (G_UNLIKELY (offset == 0)) {
1029 GST_DEBUG_OBJECT (demux, "can't read indices, don't know index offset");
1033 while (gst_asf_demux_pull_data (demux, offset, 16 + 8, &buf, NULL)) {
1039 gst_buffer_map (buf, &map, GST_MAP_READ);
1040 g_assert (map.size >= 16 + 8);
1041 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1042 gst_buffer_unmap (buf, &map);
1043 gst_buffer_replace (&buf, NULL);
1045 /* check for sanity */
1046 if (G_UNLIKELY (obj.size > (5 * 1024 * 1024))) {
1047 GST_DEBUG_OBJECT (demux, "implausible index object size, bailing out");
1051 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, offset, obj.size, &buf,
1055 GST_LOG_OBJECT (demux, "index object at offset 0x%" G_GINT64_MODIFIER "X"
1056 ", size %u", offset, (guint) obj.size);
1058 offset += obj.size; /* increase before _process_object changes it */
1060 gst_buffer_map (buf, &map, GST_MAP_READ);
1061 g_assert (map.size >= obj.size);
1062 bufdata = (guint8 *) map.data;
1063 flow = gst_asf_demux_process_object (demux, &bufdata, &obj.size);
1064 gst_buffer_unmap (buf, &map);
1065 gst_buffer_replace (&buf, NULL);
1067 if (G_UNLIKELY (flow != GST_FLOW_OK))
1072 GST_DEBUG_OBJECT (demux, "read %u index objects", num_read);
1076 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data)
1080 asf_demux_peek_object (demux, data, 50, &obj, TRUE);
1081 if (obj.id != ASF_OBJ_DATA) {
1082 GST_WARNING_OBJECT (demux, "headers not followed by a DATA object");
1086 demux->state = GST_ASF_DEMUX_STATE_DATA;
1088 if (!demux->broadcast && obj.size > 50) {
1089 demux->data_size = obj.size - 50;
1090 /* CHECKME: for at least one file this is off by +158 bytes?! */
1091 demux->index_offset = demux->data_offset + demux->data_size;
1093 demux->data_size = 0;
1094 demux->index_offset = 0;
1099 if (!demux->broadcast) {
1100 /* skip object header (24 bytes) and file GUID (16 bytes) */
1101 demux->num_packets = GST_READ_UINT64_LE (data + (16 + 8) + 16);
1103 demux->num_packets = 0;
1106 if (demux->num_packets == 0)
1107 demux->seekable = FALSE;
1109 /* fallback in the unlikely case that headers are inconsistent, can't hurt */
1110 if (demux->data_size == 0 && demux->num_packets > 0) {
1111 demux->data_size = demux->num_packets * demux->packet_size;
1112 demux->index_offset = demux->data_offset + demux->data_size;
1115 /* process pending stream objects and create pads for those */
1116 gst_asf_demux_process_queued_extended_stream_objects (demux);
1118 GST_INFO_OBJECT (demux, "Stream has %" G_GUINT64_FORMAT " packets, "
1119 "data_offset=%" G_GINT64_FORMAT ", data_size=%" G_GINT64_FORMAT
1120 ", index_offset=%" G_GUINT64_FORMAT, demux->num_packets,
1121 demux->data_offset, demux->data_size, demux->index_offset);
1127 gst_asf_demux_pull_headers (GstASFDemux * demux, GstFlowReturn * pflow)
1129 GstFlowReturn flow = GST_FLOW_OK;
1131 GstBuffer *buf = NULL;
1136 GST_LOG_OBJECT (demux, "reading headers");
1138 /* pull HEADER object header, so we know its size */
1139 if (!gst_asf_demux_pull_data (demux, demux->base_offset, 16 + 8, &buf, &flow))
1142 gst_buffer_map (buf, &map, GST_MAP_READ);
1143 g_assert (map.size >= 16 + 8);
1144 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1145 gst_buffer_unmap (buf, &map);
1146 gst_buffer_replace (&buf, NULL);
1148 if (obj.id != ASF_OBJ_HEADER)
1151 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
1153 /* pull HEADER object */
1154 if (!gst_asf_demux_pull_data (demux, demux->base_offset, obj.size, &buf,
1158 size = obj.size; /* don't want obj.size changed */
1159 gst_buffer_map (buf, &map, GST_MAP_READ);
1160 g_assert (map.size >= size);
1161 bufdata = (guint8 *) map.data;
1162 flow = gst_asf_demux_process_object (demux, &bufdata, &size);
1163 gst_buffer_unmap (buf, &map);
1164 gst_buffer_replace (&buf, NULL);
1166 if (flow != GST_FLOW_OK) {
1167 GST_WARNING_OBJECT (demux, "process_object: %s", gst_flow_get_name (flow));
1171 /* calculate where the packet data starts */
1172 demux->data_offset = demux->base_offset + obj.size + 50;
1174 /* now pull beginning of DATA object before packet data */
1175 if (!gst_asf_demux_pull_data (demux, demux->base_offset + obj.size, 50, &buf,
1179 gst_buffer_map (buf, &map, GST_MAP_READ);
1180 g_assert (map.size >= size);
1181 bufdata = (guint8 *) map.data;
1182 if (!gst_asf_demux_parse_data_object_start (demux, bufdata))
1185 if (demux->num_streams == 0)
1188 gst_buffer_unmap (buf, &map);
1189 gst_buffer_replace (&buf, NULL);
1197 gst_buffer_unmap (buf, &map);
1198 gst_buffer_replace (&buf, NULL);
1200 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1201 ("This doesn't seem to be an ASF file"));
1202 *pflow = GST_FLOW_ERROR;
1207 flow = GST_FLOW_ERROR;
1208 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1209 ("header parsing failed, or no streams found, flow = %s",
1210 gst_flow_get_name (flow)));
1215 gst_buffer_unmap (buf, &map);
1216 gst_buffer_replace (&buf, NULL);
1223 all_streams_prerolled (GstASFDemux * demux)
1225 GstClockTime preroll_time;
1226 guint i, num_no_data = 0;
1228 /* Allow at least 500ms of preroll_time */
1229 preroll_time = MAX (demux->preroll, 500 * GST_MSECOND);
1231 /* returns TRUE as long as there isn't a stream which (a) has data queued
1232 * and (b) the timestamp of last piece of data queued is < demux->preroll
1233 * AND there is at least one other stream with data queued */
1234 for (i = 0; i < demux->num_streams; ++i) {
1235 AsfPayload *last_payload = NULL;
1239 stream = &demux->stream[i];
1240 if (G_UNLIKELY (stream->payloads->len == 0)) {
1242 GST_LOG_OBJECT (stream->pad, "no data queued");
1246 /* find last payload with timestamp */
1247 for (last_idx = stream->payloads->len - 1;
1248 last_idx >= 0 && (last_payload == NULL
1249 || !GST_CLOCK_TIME_IS_VALID (last_payload->ts)); --last_idx) {
1250 last_payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1253 GST_LOG_OBJECT (stream->pad, "checking if %" GST_TIME_FORMAT " > %"
1254 GST_TIME_FORMAT, GST_TIME_ARGS (last_payload->ts),
1255 GST_TIME_ARGS (preroll_time));
1256 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (last_payload->ts)
1257 || last_payload->ts <= preroll_time)) {
1258 GST_LOG_OBJECT (stream->pad, "not beyond preroll point yet");
1263 if (G_UNLIKELY (num_no_data > 0))
1271 gst_asf_demux_have_mutually_exclusive_active_stream (GstASFDemux * demux,
1276 for (l = demux->mut_ex_streams; l != NULL; l = l->next) {
1279 /* check for each mutual exclusion group whether it affects this stream */
1280 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1281 if (*mes == stream->id) {
1282 /* we are in this group; let's check if we've already activated streams
1283 * that are in the same group (and hence mutually exclusive to this
1285 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1288 for (i = 0; i < demux->num_streams; ++i) {
1289 if (demux->stream[i].id == *mes && demux->stream[i].active) {
1290 GST_LOG_OBJECT (demux, "stream with ID %d is mutually exclusive "
1291 "to already active stream with ID %d", stream->id,
1292 demux->stream[i].id);
1297 /* we can only be in this group once, let's break out and move on to
1298 * the next mutual exclusion group */
1309 gst_asf_demux_check_segment_ts (GstASFDemux * demux, GstClockTime payload_ts)
1311 /* remember the first queued timestamp for the segment */
1312 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->segment_ts) &&
1313 GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1314 GST_DEBUG_OBJECT (demux, "segment ts: %" GST_TIME_FORMAT,
1315 GST_TIME_ARGS (demux->first_ts));
1316 demux->segment_ts = payload_ts;
1317 /* always note, but only determines segment when streaming */
1318 if (demux->streaming)
1319 gst_segment_do_seek (&demux->segment, demux->in_segment.rate,
1320 GST_FORMAT_TIME, (GstSeekFlags) demux->segment.flags,
1321 GST_SEEK_TYPE_SET, demux->segment_ts, GST_SEEK_TYPE_NONE, 0, NULL);
1326 gst_asf_demux_check_first_ts (GstASFDemux * demux, gboolean force)
1328 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1329 GstClockTime first_ts = GST_CLOCK_TIME_NONE;
1332 /* go trhough each stream, find smallest timestamp */
1333 for (i = 0; i < demux->num_streams; ++i) {
1336 GstClockTime stream_min_ts = GST_CLOCK_TIME_NONE;
1337 GstClockTime stream_min_ts2 = GST_CLOCK_TIME_NONE; /* second smallest timestamp */
1338 stream = &demux->stream[i];
1340 for (j = 0; j < stream->payloads->len; ++j) {
1341 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1342 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1343 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts)
1344 || stream_min_ts > payload->ts)) {
1345 stream_min_ts = payload->ts;
1347 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1348 payload->ts > stream_min_ts &&
1349 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts2)
1350 || stream_min_ts2 > payload->ts)) {
1351 stream_min_ts2 = payload->ts;
1355 /* there are some DVR ms files where first packet has TS of 0 (instead of -1) while subsequent packets have
1356 regular (singificantly larger) timestamps. If we don't deal with it, we may end up with huge gap in timestamps
1357 which makes playback stuck. The 0 timestamp may also be valid though, if the second packet timestamp continues
1358 from it. I havent found a better way to distinguish between these two, except to set an arbitrary boundary
1359 and disregard the first 0 timestamp if the second timestamp is bigger than the boundary) */
1361 if (stream_min_ts == 0 && stream_min_ts2 == GST_CLOCK_TIME_NONE && !force) /* still waiting for the second timestamp */
1364 if (stream_min_ts == 0 && stream_min_ts2 > GST_SECOND) /* first timestamp is 0 and second is significantly larger, disregard the 0 */
1365 stream_min_ts = stream_min_ts2;
1367 /* if we don't have timestamp for this stream, wait for more data */
1368 if (!GST_CLOCK_TIME_IS_VALID (stream_min_ts) && !force)
1371 if (GST_CLOCK_TIME_IS_VALID (stream_min_ts) &&
1372 (!GST_CLOCK_TIME_IS_VALID (first_ts) || first_ts > stream_min_ts))
1373 first_ts = stream_min_ts;
1376 if (!GST_CLOCK_TIME_IS_VALID (first_ts)) /* can happen with force = TRUE */
1379 demux->first_ts = first_ts;
1381 /* update packets queued before we knew first timestamp */
1382 for (i = 0; i < demux->num_streams; ++i) {
1385 stream = &demux->stream[i];
1387 for (j = 0; j < stream->payloads->len; ++j) {
1388 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1389 if (GST_CLOCK_TIME_IS_VALID (payload->ts)) {
1390 if (payload->ts > first_ts)
1391 payload->ts -= first_ts;
1399 gst_asf_demux_check_segment_ts (demux, 0);
1405 gst_asf_demux_update_caps_from_payload (GstASFDemux * demux, AsfStream * stream)
1407 /* try to determine whether the stream is AC-3 or MPEG; In dvr-ms the codecTag is unreliable
1408 and often set wrong, inspecting the data is the only way that seem to be working */
1409 GstTypeFindProbability prob = GST_TYPE_FIND_NONE;
1410 GstCaps *caps = NULL;
1412 GstAdapter *adapter = gst_adapter_new ();
1414 for (i = 0; i < stream->payloads->len && prob < GST_TYPE_FIND_LIKELY; ++i) {
1416 AsfPayload *payload;
1419 payload = &g_array_index (stream->payloads, AsfPayload, i);
1420 gst_adapter_push (adapter, gst_buffer_ref (payload->buf));
1421 len = gst_adapter_available (adapter);
1422 data = gst_adapter_map (adapter, len);
1426 #define MIN_LENGTH 128
1428 /* look for the sync points */
1430 if (len < MIN_LENGTH || /* give typefind something to work on */
1431 (data[0] == 0x0b && data[1] == 0x77) || /* AC-3 sync point */
1432 (data[0] == 0xFF && ((data[1] & 0xF0) >> 4) == 0xF)) /* MPEG sync point */
1438 gst_caps_take (&caps, gst_type_find_helper_for_data (GST_OBJECT (demux),
1441 if (prob < GST_TYPE_FIND_LIKELY) {
1444 if (len > MIN_LENGTH)
1445 /* this wasn't it, look for another sync point */
1449 gst_adapter_unmap (adapter);
1452 gst_object_unref (adapter);
1455 gst_caps_take (&stream->caps, caps);
1463 gst_asf_demux_check_activate_streams (GstASFDemux * demux, gboolean force)
1467 if (demux->activated_streams)
1470 if (G_UNLIKELY (!gst_asf_demux_check_first_ts (demux, force)))
1473 if (!all_streams_prerolled (demux) && !force) {
1474 GST_DEBUG_OBJECT (demux, "not all streams with data beyond preroll yet");
1478 for (i = 0; i < demux->num_streams; ++i) {
1479 AsfStream *stream = &demux->stream[i];
1481 if (stream->payloads->len > 0) {
1483 if (stream->inspect_payload && /* dvr-ms required payload inspection */
1484 !stream->active && /* do not inspect active streams (caps were already set) */
1485 !gst_asf_demux_update_caps_from_payload (demux, stream) && /* failed to determine caps */
1486 stream->payloads->len < 20) { /* if we couldn't determine the caps from 20 packets then just give up and use whatever was in codecTag */
1487 /* try to gather some more data */
1490 /* we don't check mutual exclusion stuff here; either we have data for
1491 * a stream, then we active it, or we don't, then we'll ignore it */
1492 GST_LOG_OBJECT (stream->pad, "is prerolled - activate!");
1493 gst_asf_demux_activate_stream (demux, stream);
1495 GST_LOG_OBJECT (stream->pad, "no data, ignoring stream");
1499 gst_asf_demux_release_old_pads (demux);
1501 demux->activated_streams = TRUE;
1502 GST_LOG_OBJECT (demux, "signalling no more pads");
1503 gst_element_no_more_pads (GST_ELEMENT (demux));
1507 /* returns the stream that has a complete payload with the lowest timestamp
1508 * queued, or NULL (we push things by timestamp because during the internal
1509 * prerolling we might accumulate more data then the external queues can take,
1510 * so we'd lock up if we pushed all accumulated data for stream N in one go) */
1512 gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
1514 AsfPayload *best_payload = NULL;
1515 AsfStream *best_stream = NULL;
1518 for (i = 0; i < demux->num_streams; ++i) {
1522 stream = &demux->stream[i];
1524 /* Don't push any data until we have at least one payload that falls within
1525 * the current segment. This way we can remove out-of-segment payloads that
1526 * don't need to be decoded after a seek, sending only data from the
1527 * keyframe directly before our segment start */
1528 if (stream->payloads->len > 0) {
1529 AsfPayload *payload = NULL;
1532 /* find last payload with timestamp */
1533 for (last_idx = stream->payloads->len - 1;
1534 last_idx >= 0 && (payload == NULL
1535 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); --last_idx) {
1536 payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1539 /* if this is first payload after seek we might need to update the segment */
1540 if (GST_CLOCK_TIME_IS_VALID (payload->ts))
1541 gst_asf_demux_check_segment_ts (demux, payload->ts);
1543 if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1544 (payload->ts < demux->segment.start))) {
1545 if (G_UNLIKELY ((!demux->accurate) && payload->keyframe)) {
1546 GST_DEBUG_OBJECT (stream->pad,
1547 "Found keyframe, updating segment start to %" GST_TIME_FORMAT,
1548 GST_TIME_ARGS (payload->ts));
1549 demux->segment.start = payload->ts;
1550 demux->segment.time = payload->ts;
1552 GST_DEBUG_OBJECT (stream->pad, "Last queued payload has timestamp %"
1553 GST_TIME_FORMAT " which is before our segment start %"
1554 GST_TIME_FORMAT ", not pushing yet", GST_TIME_ARGS (payload->ts),
1555 GST_TIME_ARGS (demux->segment.start));
1560 /* Now see if there's a complete payload queued for this stream */
1563 /* find first complete payload with timestamp */
1565 j < stream->payloads->len && (payload == NULL
1566 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); ++j) {
1567 payload = &g_array_index (stream->payloads, AsfPayload, j);
1570 if (!gst_asf_payload_is_complete (payload))
1573 /* ... and whether its timestamp is lower than the current best */
1574 if (best_stream == NULL || best_payload->ts > payload->ts) {
1575 best_stream = stream;
1576 best_payload = payload;
1584 static GstFlowReturn
1585 gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
1588 GstFlowReturn ret = GST_FLOW_OK;
1590 if (G_UNLIKELY (!demux->activated_streams)) {
1591 if (!gst_asf_demux_check_activate_streams (demux, force))
1593 /* streams are now activated */
1596 while ((stream = gst_asf_demux_find_stream_with_complete_payload (demux))) {
1597 AsfPayload *payload;
1599 /* wait until we had a chance to "lock on" some payload's timestamp */
1600 if (G_UNLIKELY (demux->need_newsegment
1601 && !GST_CLOCK_TIME_IS_VALID (demux->segment_ts)))
1604 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1606 /* do we need to send a newsegment event */
1607 if ((G_UNLIKELY (demux->need_newsegment))) {
1608 GstEvent *segment_event;
1610 /* safe default if insufficient upstream info */
1611 if (!GST_CLOCK_TIME_IS_VALID (demux->in_gap))
1614 if (demux->segment.stop == GST_CLOCK_TIME_NONE &&
1615 demux->segment.duration > 0) {
1616 /* slight HACK; prevent clipping of last bit */
1617 demux->segment.stop = demux->segment.duration + demux->in_gap;
1620 /* FIXME : only if ACCURATE ! */
1621 if (G_LIKELY (!demux->accurate
1622 && (GST_CLOCK_TIME_IS_VALID (payload->ts)))) {
1623 GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
1624 GST_TIME_ARGS (payload->ts));
1625 demux->segment.start = payload->ts;
1626 demux->segment.time = payload->ts;
1629 GST_DEBUG_OBJECT (demux, "sending new-segment event %" GST_SEGMENT_FORMAT,
1632 /* note: we fix up all timestamps to start from 0, so this should be ok */
1633 segment_event = gst_event_new_segment (&demux->segment);
1634 if (demux->segment_seqnum)
1635 gst_event_set_seqnum (segment_event, demux->segment_seqnum);
1636 gst_asf_demux_send_event_unlocked (demux, segment_event);
1638 /* now post any global tags we may have found */
1639 if (demux->taglist == NULL) {
1640 demux->taglist = gst_tag_list_new_empty ();
1641 gst_tag_list_set_scope (demux->taglist, GST_TAG_SCOPE_GLOBAL);
1644 gst_tag_list_add (demux->taglist, GST_TAG_MERGE_REPLACE,
1645 GST_TAG_CONTAINER_FORMAT, "ASF", NULL);
1647 GST_DEBUG_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, demux->taglist);
1648 gst_asf_demux_send_event_unlocked (demux,
1649 gst_event_new_tag (demux->taglist));
1650 demux->taglist = NULL;
1652 demux->need_newsegment = FALSE;
1653 demux->segment_seqnum = 0;
1654 demux->segment_running = TRUE;
1657 /* Do we have tags pending for this stream? */
1658 if (G_UNLIKELY (stream->pending_tags)) {
1659 GST_LOG_OBJECT (stream->pad, "%" GST_PTR_FORMAT, stream->pending_tags);
1660 gst_pad_push_event (stream->pad,
1661 gst_event_new_tag (stream->pending_tags));
1662 stream->pending_tags = NULL;
1665 /* We have the whole packet now so we should push the packet to
1666 * the src pad now. First though we should check if we need to do
1668 if (G_UNLIKELY (stream->span > 1)) {
1669 gst_asf_demux_descramble_buffer (demux, stream, &payload->buf);
1672 payload->buf = gst_buffer_make_writable (payload->buf);
1674 if (G_LIKELY (!payload->keyframe)) {
1675 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DELTA_UNIT);
1678 if (G_UNLIKELY (stream->discont)) {
1679 GST_DEBUG_OBJECT (stream->pad, "marking DISCONT on stream");
1680 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1681 stream->discont = FALSE;
1684 if (G_UNLIKELY (stream->is_video && payload->par_x && payload->par_y &&
1685 (payload->par_x != stream->par_x) &&
1686 (payload->par_y != stream->par_y))) {
1687 GST_DEBUG ("Updating PAR (%d/%d => %d/%d)",
1688 stream->par_x, stream->par_y, payload->par_x, payload->par_y);
1689 stream->par_x = payload->par_x;
1690 stream->par_y = payload->par_y;
1691 stream->caps = gst_caps_make_writable (stream->caps);
1692 gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
1693 GST_TYPE_FRACTION, stream->par_x, stream->par_y, NULL);
1694 gst_pad_set_caps (stream->pad, stream->caps);
1697 if (G_UNLIKELY (stream->interlaced != payload->interlaced)) {
1698 GST_DEBUG ("Updating interlaced status (%d => %d)", stream->interlaced,
1699 payload->interlaced);
1700 stream->interlaced = payload->interlaced;
1701 stream->caps = gst_caps_make_writable (stream->caps);
1702 gst_caps_set_simple (stream->caps, "interlace-mode", G_TYPE_BOOLEAN,
1703 (stream->interlaced ? "mixed" : "progressive"), NULL);
1704 gst_pad_set_caps (stream->pad, stream->caps);
1707 /* (sort of) interpolate timestamps using upstream "frame of reference",
1708 * typically useful for live src, but might (unavoidably) mess with
1709 * position reporting if a live src is playing not so live content
1710 * (e.g. rtspsrc taking some time to fall back to tcp) */
1711 GST_BUFFER_PTS (payload->buf) = payload->ts;
1712 if (GST_BUFFER_PTS_IS_VALID (payload->buf)) {
1713 GST_BUFFER_PTS (payload->buf) += demux->in_gap;
1715 if (payload->duration == GST_CLOCK_TIME_NONE
1716 && stream->ext_props.avg_time_per_frame != 0)
1717 GST_BUFFER_DURATION (payload->buf) =
1718 stream->ext_props.avg_time_per_frame * 100;
1720 GST_BUFFER_DURATION (payload->buf) = payload->duration;
1722 /* FIXME: we should really set durations on buffers if we can */
1724 GST_LOG_OBJECT (stream->pad, "pushing buffer, %" GST_PTR_FORMAT,
1727 if (stream->active) {
1728 if (G_UNLIKELY (stream->first_buffer)) {
1729 if (stream->streamheader != NULL) {
1730 GST_DEBUG_OBJECT (stream->pad,
1731 "Pushing streamheader before first buffer");
1732 gst_pad_push (stream->pad, gst_buffer_ref (stream->streamheader));
1734 stream->first_buffer = FALSE;
1737 ret = gst_pad_push (stream->pad, payload->buf);
1738 ret = gst_flow_combiner_update_flow (demux->flowcombiner, ret);
1740 gst_buffer_unref (payload->buf);
1743 payload->buf = NULL;
1744 g_array_remove_index (stream->payloads, 0);
1746 /* Break out as soon as we have an issue */
1747 if (G_UNLIKELY (ret != GST_FLOW_OK))
1755 gst_asf_demux_check_buffer_is_header (GstASFDemux * demux, GstBuffer * buf)
1759 g_assert (buf != NULL);
1761 GST_LOG_OBJECT (demux, "Checking if buffer is a header");
1763 gst_buffer_map (buf, &map, GST_MAP_READ);
1765 /* we return false on buffer too small */
1766 if (map.size < ASF_OBJECT_HEADER_SIZE) {
1767 gst_buffer_unmap (buf, &map);
1771 /* check if it is a header */
1772 asf_demux_peek_object (demux, map.data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
1773 gst_buffer_unmap (buf, &map);
1774 if (obj.id == ASF_OBJ_HEADER) {
1781 gst_asf_demux_check_chained_asf (GstASFDemux * demux)
1783 guint64 off = demux->data_offset + (demux->packet * demux->packet_size);
1784 GstFlowReturn ret = GST_FLOW_OK;
1785 GstBuffer *buf = NULL;
1786 gboolean header = FALSE;
1788 /* TODO maybe we should skip index objects after the data and look
1789 * further for a new header */
1790 if (gst_asf_demux_pull_data (demux, off, ASF_OBJECT_HEADER_SIZE, &buf, &ret)) {
1791 g_assert (buf != NULL);
1792 /* check if it is a header */
1793 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1794 GST_DEBUG_OBJECT (demux, "new base offset: %" G_GUINT64_FORMAT, off);
1795 demux->base_offset = off;
1799 gst_buffer_unref (buf);
1806 gst_asf_demux_loop (GstASFDemux * demux)
1808 GstFlowReturn flow = GST_FLOW_OK;
1809 GstBuffer *buf = NULL;
1811 gboolean sent_eos = FALSE;
1813 if (G_UNLIKELY (demux->state == GST_ASF_DEMUX_STATE_HEADER)) {
1814 if (!gst_asf_demux_pull_headers (demux, &flow)) {
1818 gst_asf_demux_pull_indices (demux);
1821 g_assert (demux->state == GST_ASF_DEMUX_STATE_DATA);
1823 if (G_UNLIKELY (demux->num_packets != 0
1824 && demux->packet >= demux->num_packets))
1827 GST_LOG_OBJECT (demux, "packet %u/%u", (guint) demux->packet + 1,
1828 (guint) demux->num_packets);
1830 off = demux->data_offset + (demux->packet * demux->packet_size);
1832 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, off,
1833 demux->packet_size * demux->speed_packets, &buf, &flow))) {
1834 GST_DEBUG_OBJECT (demux, "got flow %s", gst_flow_get_name (flow));
1835 if (flow == GST_FLOW_EOS)
1837 else if (flow == GST_FLOW_FLUSHING) {
1838 GST_DEBUG_OBJECT (demux, "Not fatal");
1844 if (G_LIKELY (demux->speed_packets == 1)) {
1845 GstAsfDemuxParsePacketError err;
1846 err = gst_asf_demux_parse_packet (demux, buf);
1847 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1848 /* when we don't know when the data object ends, we should check
1849 * for a chained asf */
1850 if (demux->num_packets == 0) {
1851 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1852 GST_INFO_OBJECT (demux, "Chained asf found");
1853 demux->base_offset = off;
1854 gst_asf_demux_reset (demux, TRUE);
1855 gst_buffer_unref (buf);
1859 /* FIXME: We should tally up fatal errors and error out only
1860 * after a few broken packets in a row? */
1862 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1863 gst_buffer_unref (buf);
1868 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1874 for (n = 0; n < demux->speed_packets; n++) {
1876 GstAsfDemuxParsePacketError err;
1879 gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL,
1880 n * demux->packet_size, demux->packet_size);
1881 err = gst_asf_demux_parse_packet (demux, sub);
1882 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1883 /* when we don't know when the data object ends, we should check
1884 * for a chained asf */
1885 if (demux->num_packets == 0) {
1886 if (gst_asf_demux_check_buffer_is_header (demux, sub)) {
1887 GST_INFO_OBJECT (demux, "Chained asf found");
1888 demux->base_offset = off + n * demux->packet_size;
1889 gst_asf_demux_reset (demux, TRUE);
1890 gst_buffer_unref (sub);
1891 gst_buffer_unref (buf);
1895 /* FIXME: We should tally up fatal errors and error out only
1896 * after a few broken packets in a row? */
1898 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1902 gst_buffer_unref (sub);
1904 if (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)
1905 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1911 /* reset speed pull */
1912 demux->speed_packets = 1;
1915 gst_buffer_unref (buf);
1917 if (G_UNLIKELY (demux->num_packets > 0
1918 && demux->packet >= demux->num_packets)) {
1919 GST_LOG_OBJECT (demux, "reached EOS");
1923 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1924 GST_DEBUG_OBJECT (demux, "pushing complete payloads failed");
1928 /* check if we're at the end of the configured segment */
1929 /* FIXME: check if segment end reached etc. */
1935 /* if we haven't activated our streams yet, this might be because we have
1936 * less data queued than required for preroll; force stream activation and
1937 * send any pending payloads before sending EOS */
1938 if (!demux->activated_streams)
1939 gst_asf_demux_push_complete_payloads (demux, TRUE);
1941 /* we want to push an eos or post a segment-done in any case */
1942 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1945 /* for segment playback we need to post when (in stream time)
1946 * we stopped, this is either stop (when set) or the duration. */
1947 if ((stop = demux->segment.stop) == -1)
1948 stop = demux->segment.duration;
1950 GST_INFO_OBJECT (demux, "Posting segment-done, at end of segment");
1951 gst_element_post_message (GST_ELEMENT_CAST (demux),
1952 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
1954 gst_asf_demux_send_event_unlocked (demux,
1955 gst_event_new_segment_done (GST_FORMAT_TIME, stop));
1956 } else if (flow != GST_FLOW_EOS) {
1957 /* check if we have a chained asf, in case, we don't eos yet */
1958 if (gst_asf_demux_check_chained_asf (demux)) {
1959 GST_INFO_OBJECT (demux, "Chained ASF starting");
1960 gst_asf_demux_reset (demux, TRUE);
1964 /* normal playback, send EOS to all linked pads */
1965 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
1966 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1968 /* ... and fall through to pause */
1972 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
1973 gst_flow_get_name (flow));
1974 demux->segment_running = FALSE;
1975 gst_pad_pause_task (demux->sinkpad);
1977 /* For the error cases (not EOS) */
1979 if (flow == GST_FLOW_EOS)
1980 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1981 else if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
1982 /* Post an error. Hopefully something else already has, but if not... */
1983 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1984 (_("Internal data stream error.")),
1985 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
1994 GST_DEBUG_OBJECT (demux, "Read failed, doh");
1995 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1996 flow = GST_FLOW_EOS;
2000 /* See FIXMEs above */
2003 gst_buffer_unref (buf);
2004 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2005 ("Error parsing ASF packet %u", (guint) demux->packet));
2006 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
2007 flow = GST_FLOW_ERROR;
2013 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
2014 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
2015 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
2018 gst_asf_demux_check_header (GstASFDemux * demux)
2021 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
2022 ASF_OBJECT_HEADER_SIZE);
2023 if (cdata == NULL) /* need more data */
2024 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
2026 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE);
2027 if (obj.id != ASF_OBJ_HEADER) {
2028 return GST_ASF_DEMUX_CHECK_HEADER_NO;
2030 return GST_ASF_DEMUX_CHECK_HEADER_YES;
2034 static GstFlowReturn
2035 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
2037 GstFlowReturn ret = GST_FLOW_OK;
2040 demux = GST_ASF_DEMUX (parent);
2042 GST_LOG_OBJECT (demux,
2043 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
2044 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
2045 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
2047 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
2048 GST_DEBUG_OBJECT (demux, "received DISCONT");
2049 gst_asf_demux_mark_discont (demux);
2052 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
2053 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
2054 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
2055 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
2056 ", interpolation gap: %" GST_TIME_FORMAT,
2057 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
2060 gst_adapter_push (demux->adapter, buf);
2062 switch (demux->state) {
2063 case GST_ASF_DEMUX_STATE_INDEX:{
2064 gint result = gst_asf_demux_check_header (demux);
2065 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
2068 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
2069 /* we don't care about this, probably an index */
2070 /* TODO maybe would be smarter to skip all the indices
2071 * until we got a new header or EOS to decide */
2072 GST_LOG_OBJECT (demux, "Received index object, its EOS");
2075 GST_INFO_OBJECT (demux, "Chained asf starting");
2076 /* cleanup and get ready for a chained asf */
2077 gst_asf_demux_reset (demux, TRUE);
2081 case GST_ASF_DEMUX_STATE_HEADER:{
2082 ret = gst_asf_demux_chain_headers (demux);
2083 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
2085 /* otherwise fall through */
2087 case GST_ASF_DEMUX_STATE_DATA:
2091 data_size = demux->packet_size;
2093 while (gst_adapter_available (demux->adapter) >= data_size) {
2095 GstAsfDemuxParsePacketError err;
2097 /* we don't know the length of the stream
2098 * check for a chained asf everytime */
2099 if (demux->num_packets == 0) {
2100 gint result = gst_asf_demux_check_header (demux);
2102 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
2103 GST_INFO_OBJECT (demux, "Chained asf starting");
2104 /* cleanup and get ready for a chained asf */
2105 gst_asf_demux_reset (demux, TRUE);
2108 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2109 && demux->packet >= demux->num_packets)) {
2110 /* do not overshoot data section when streaming */
2114 buf = gst_adapter_take_buffer (demux->adapter, data_size);
2116 /* FIXME: We should tally up fatal errors and error out only
2117 * after a few broken packets in a row? */
2118 err = gst_asf_demux_parse_packet (demux, buf);
2120 gst_buffer_unref (buf);
2122 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
2123 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
2125 GST_WARNING_OBJECT (demux, "Parse error");
2127 if (demux->packet >= 0)
2130 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2131 && demux->packet >= demux->num_packets)) {
2132 demux->state = GST_ASF_DEMUX_STATE_INDEX;
2137 g_assert_not_reached ();
2141 if (ret != GST_FLOW_OK)
2142 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
2148 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
2154 static inline gboolean
2155 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
2157 if (*p_size < num_bytes)
2160 *p_data += num_bytes;
2161 *p_size -= num_bytes;
2165 static inline guint8
2166 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
2170 g_assert (*p_size >= 1);
2171 ret = GST_READ_UINT8 (*p_data);
2172 *p_data += sizeof (guint8);
2173 *p_size -= sizeof (guint8);
2177 static inline guint16
2178 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
2182 g_assert (*p_size >= 2);
2183 ret = GST_READ_UINT16_LE (*p_data);
2184 *p_data += sizeof (guint16);
2185 *p_size -= sizeof (guint16);
2189 static inline guint32
2190 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
2194 g_assert (*p_size >= 4);
2195 ret = GST_READ_UINT32_LE (*p_data);
2196 *p_data += sizeof (guint32);
2197 *p_size -= sizeof (guint32);
2201 static inline guint64
2202 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
2206 g_assert (*p_size >= 8);
2207 ret = GST_READ_UINT64_LE (*p_data);
2208 *p_data += sizeof (guint64);
2209 *p_size -= sizeof (guint64);
2214 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2215 guint8 ** p_data, guint64 * p_size)
2219 if (*p_size < num_bytes_to_read)
2222 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2223 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2225 *p_data += num_bytes_to_read;
2226 *p_size -= num_bytes_to_read;
2232 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2233 guint8 ** p_data, guint64 * p_size)
2237 if (*p_size < num_bytes_to_read)
2240 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2241 *p_data += num_bytes_to_read;
2242 *p_size -= num_bytes_to_read;
2247 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2248 guint8 ** p_data, guint64 * p_size)
2258 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2261 *p_strlen = s_length;
2263 if (s_length == 0) {
2264 GST_WARNING ("zero-length string");
2265 *p_str = g_strdup ("");
2269 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2272 g_assert (s != NULL);
2274 /* just because They don't exist doesn't
2275 * mean They are not out to get you ... */
2276 if (s[s_length - 1] != '\0') {
2277 s = g_realloc (s, s_length + 1);
2281 *p_str = (gchar *) s;
2287 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2289 g_assert (*p_size >= 4 * sizeof (guint32));
2291 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2292 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2293 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2294 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2298 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2301 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2304 /* WAVEFORMATEX Structure */
2305 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2306 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2307 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2308 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2309 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2310 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2311 /* Codec specific data size */
2312 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2317 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2320 if (*p_size < (4 + 4 + 1 + 2))
2323 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2324 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2325 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2326 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2331 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2332 guint8 ** p_data, guint64 * p_size)
2334 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2337 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2338 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2339 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2340 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2341 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2342 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2343 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2344 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2345 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2346 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2347 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2352 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2356 for (i = 0; i < demux->num_streams; i++) {
2357 if (demux->stream[i].id == id)
2358 return &demux->stream[i];
2361 if (gst_asf_demux_is_unknown_stream (demux, id))
2362 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2367 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2368 GstCaps * caps, guint16 id, gboolean is_video, GstBuffer * streamheader,
2373 gst_pad_use_fixed_caps (src_pad);
2374 gst_pad_set_caps (src_pad, caps);
2376 gst_pad_set_event_function (src_pad,
2377 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2378 gst_pad_set_query_function (src_pad,
2379 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2381 stream = &demux->stream[demux->num_streams];
2382 stream->caps = caps;
2383 stream->pad = src_pad;
2385 stream->fps_known = !is_video; /* bit hacky for audio */
2386 stream->is_video = is_video;
2387 stream->pending_tags = tags;
2388 stream->discont = TRUE;
2389 stream->first_buffer = TRUE;
2390 stream->streamheader = streamheader;
2391 if (stream->streamheader) {
2392 stream->streamheader = gst_buffer_make_writable (streamheader);
2393 GST_BUFFER_FLAG_SET (stream->streamheader, GST_BUFFER_FLAG_HEADER);
2398 st = gst_caps_get_structure (caps, 0);
2399 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2400 par_x > 0 && par_y > 0) {
2401 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2402 stream->par_x = par_x;
2403 stream->par_y = par_y;
2407 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2409 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2410 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2412 ++demux->num_streams;
2414 stream->active = FALSE;
2420 gst_asf_demux_add_stream_headers_to_caps (GstASFDemux * demux,
2421 GstBuffer * buffer, GstStructure * structure)
2423 GValue arr_val = G_VALUE_INIT;
2424 GValue buf_val = G_VALUE_INIT;
2426 g_value_init (&arr_val, GST_TYPE_ARRAY);
2427 g_value_init (&buf_val, GST_TYPE_BUFFER);
2429 gst_value_set_buffer (&buf_val, buffer);
2430 gst_value_array_append_and_take_value (&arr_val, &buf_val);
2432 gst_structure_take_value (structure, "streamheader", &arr_val);
2436 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2437 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2439 GstTagList *tags = NULL;
2440 GstBuffer *extradata = NULL;
2443 guint16 size_left = 0;
2444 gchar *codec_name = NULL;
2447 size_left = audio->size;
2449 /* Create the audio pad */
2450 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2452 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2455 /* Swallow up any left over data and set up the
2456 * standard properties from the header info */
2458 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2459 "codec specific data", size_left);
2461 g_assert (size_left <= *p_size);
2462 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2465 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2466 * additional two bytes indicating extradata. */
2467 /* FIXME: Handle the channel reorder map here */
2468 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2469 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2472 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2473 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2476 /* Informing about that audio format we just added */
2478 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2479 g_free (codec_name);
2483 gst_buffer_unref (extradata);
2485 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2486 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2487 audio->codec_tag, tags);
2489 ++demux->num_audio_streams;
2491 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, NULL, tags);
2495 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2496 asf_stream_video_format * video, guint16 id,
2497 guint8 ** p_data, guint64 * p_size)
2499 GstTagList *tags = NULL;
2500 GstStructure *caps_s;
2501 GstBuffer *extradata = NULL;
2506 gchar *codec_name = NULL;
2507 gint size_left = video->size - 40;
2508 GstBuffer *streamheader = NULL;
2509 guint par_w = 1, par_h = 1;
2511 /* Create the video pad */
2512 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2513 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2516 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2518 GST_LOG ("Video header has %d bytes of codec specific data", size_left);
2519 g_assert (size_left <= *p_size);
2520 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2523 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2525 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2526 caps = gst_riff_create_video_caps (video->tag, NULL,
2527 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2530 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2531 G_TYPE_UINT, video->tag, NULL);
2536 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2537 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2538 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2541 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2545 /* retry with the global metadata */
2546 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2547 demux->global_metadata);
2548 s = demux->global_metadata;
2549 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2550 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2551 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2552 if (ax > 0 && ay > 0) {
2555 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2560 s = gst_caps_get_structure (caps, 0);
2561 gst_structure_remove_field (s, "framerate");
2564 caps_s = gst_caps_get_structure (caps, 0);
2566 /* add format field with fourcc to WMV/VC1 caps to differentiate variants */
2567 if (gst_structure_has_name (caps_s, "video/x-wmv")) {
2568 str = g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2569 gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
2572 /* check if h264 has codec_data (avc) or streamheaders (bytestream) */
2573 } else if (gst_structure_has_name (caps_s, "video/x-h264")) {
2574 const GValue *value = gst_structure_get_value (caps_s, "codec_data");
2576 GstBuffer *buf = gst_value_get_buffer (value);
2579 if (gst_buffer_map (buf, &mapinfo, GST_MAP_READ)) {
2580 if (mapinfo.size >= 4 && GST_READ_UINT32_BE (mapinfo.data) == 1) {
2581 /* this looks like a bytestream start */
2582 streamheader = gst_buffer_ref (buf);
2583 gst_asf_demux_add_stream_headers_to_caps (demux, buf, caps_s);
2584 gst_structure_remove_field (caps_s, "codec_data");
2587 gst_buffer_unmap (buf, &mapinfo);
2592 /* For a 3D video, set multiview information into the caps based on
2593 * what was detected during object parsing */
2594 if (demux->asf_3D_mode != GST_ASF_3D_NONE) {
2595 GstVideoMultiviewMode mv_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
2596 GstVideoMultiviewFlags mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
2597 const gchar *mview_mode_str;
2599 switch (demux->asf_3D_mode) {
2600 case GST_ASF_3D_SIDE_BY_SIDE_HALF_LR:
2601 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2603 case GST_ASF_3D_SIDE_BY_SIDE_HALF_RL:
2604 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2605 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2607 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR:
2608 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2610 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL:
2611 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2612 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2614 case GST_ASF_3D_DUAL_STREAM:{
2615 gboolean is_right_view = FALSE;
2616 /* if Advanced_Mutual_Exclusion object exists, use it
2617 * to figure out which is the left view (lower ID) */
2618 if (demux->mut_ex_streams != NULL) {
2622 length = g_slist_length (demux->mut_ex_streams);
2624 for (i = 0; i < length; i++) {
2627 v_s_id = g_slist_nth_data (demux->mut_ex_streams, i);
2629 GST_DEBUG_OBJECT (demux,
2630 "has Mutual_Exclusion object. stream id in object is %d",
2631 GPOINTER_TO_INT (v_s_id));
2633 if (id > GPOINTER_TO_INT (v_s_id))
2634 is_right_view = TRUE;
2637 /* if the Advaced_Mutual_Exclusion object doesn't exist, assume the
2638 * first video stream encountered has the lower ID */
2639 if (demux->num_video_streams > 0) {
2640 /* This is not the first video stream, assuming right eye view */
2641 is_right_view = TRUE;
2645 mv_mode = GST_VIDEO_MULTIVIEW_MODE_RIGHT;
2647 mv_mode = GST_VIDEO_MULTIVIEW_MODE_LEFT;
2654 GST_INFO_OBJECT (demux,
2655 "stream_id %d, has multiview-mode %d flags 0x%x", id, mv_mode,
2658 mview_mode_str = gst_video_multiview_mode_to_caps_string (mv_mode);
2659 if (mview_mode_str != NULL) {
2660 if (gst_video_multiview_guess_half_aspect (mv_mode, video->width,
2661 video->height, par_w, par_h))
2662 mv_flags |= GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT;
2664 gst_caps_set_simple (caps,
2665 "multiview-mode", G_TYPE_STRING, mview_mode_str,
2666 "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mv_flags,
2667 GST_FLAG_SET_MASK_EXACT, NULL);
2672 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2673 g_free (codec_name);
2677 gst_buffer_unref (extradata);
2679 GST_INFO ("Adding video stream #%u, id %u, codec %"
2680 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2681 GST_FOURCC_ARGS (video->tag), video->tag);
2683 ++demux->num_video_streams;
2685 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE,
2686 streamheader, tags);
2690 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2692 if (!stream->active) {
2696 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2697 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2698 gst_pad_set_active (stream->pad, TRUE);
2701 gst_pad_create_stream_id_printf (stream->pad, GST_ELEMENT_CAST (demux),
2702 "%03u", stream->id);
2705 gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
2707 if (gst_event_parse_group_id (event, &demux->group_id))
2708 demux->have_group_id = TRUE;
2710 demux->have_group_id = FALSE;
2711 gst_event_unref (event);
2712 } else if (!demux->have_group_id) {
2713 demux->have_group_id = TRUE;
2714 demux->group_id = gst_util_group_id_next ();
2717 event = gst_event_new_stream_start (stream_id);
2718 if (demux->have_group_id)
2719 gst_event_set_group_id (event, demux->group_id);
2721 gst_pad_push_event (stream->pad, event);
2723 gst_pad_set_caps (stream->pad, stream->caps);
2725 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2726 gst_flow_combiner_add_pad (demux->flowcombiner, stream->pad);
2727 stream->active = TRUE;
2732 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2735 AsfCorrectionType correction_type;
2736 AsfStreamType stream_type;
2737 GstClockTime time_offset;
2738 gboolean is_encrypted G_GNUC_UNUSED;
2742 guint stream_specific_size;
2743 guint type_specific_size G_GNUC_UNUSED;
2744 guint unknown G_GNUC_UNUSED;
2745 gboolean inspect_payload = FALSE;
2746 AsfStream *stream = NULL;
2748 /* Get the rest of the header's header */
2749 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2750 goto not_enough_data;
2752 gst_asf_demux_get_guid (&guid, &data, &size);
2753 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2755 gst_asf_demux_get_guid (&guid, &data, &size);
2756 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2758 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2760 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2761 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2763 flags = gst_asf_demux_get_uint16 (&data, &size);
2764 stream_id = flags & 0x7f;
2765 is_encrypted = ! !((flags & 0x8000) << 15);
2766 unknown = gst_asf_demux_get_uint32 (&data, &size);
2768 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2769 stream_id, GST_TIME_ARGS (time_offset));
2771 /* dvr-ms has audio stream declared in stream specific data */
2772 if (stream_type == ASF_STREAM_EXT_EMBED_HEADER) {
2773 AsfExtStreamType ext_stream_type;
2774 gst_asf_demux_get_guid (&guid, &data, &size);
2775 ext_stream_type = gst_asf_demux_identify_guid (asf_ext_stream_guids, &guid);
2777 if (ext_stream_type == ASF_EXT_STREAM_AUDIO) {
2778 inspect_payload = TRUE;
2780 gst_asf_demux_get_guid (&guid, &data, &size);
2781 gst_asf_demux_get_uint32 (&data, &size);
2782 gst_asf_demux_get_uint32 (&data, &size);
2783 gst_asf_demux_get_uint32 (&data, &size);
2784 gst_asf_demux_get_guid (&guid, &data, &size);
2785 gst_asf_demux_get_uint32 (&data, &size);
2786 stream_type = ASF_STREAM_AUDIO;
2790 switch (stream_type) {
2791 case ASF_STREAM_AUDIO:{
2792 asf_stream_audio audio_object;
2794 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2795 goto not_enough_data;
2797 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2800 stream = gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2803 switch (correction_type) {
2804 case ASF_CORRECTION_ON:{
2805 guint span, packet_size, chunk_size, data_size, silence_data;
2807 GST_INFO ("Using error correction");
2809 if (size < (1 + 2 + 2 + 2 + 1))
2810 goto not_enough_data;
2812 span = gst_asf_demux_get_uint8 (&data, &size);
2813 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2814 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2815 data_size = gst_asf_demux_get_uint16 (&data, &size);
2816 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2818 stream->span = span;
2820 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2821 packet_size, chunk_size, data_size, span, silence_data);
2823 if (stream->span > 1) {
2824 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2825 /* Disable descrambling */
2828 /* FIXME: this else branch was added for
2829 * weird_al_yankovic - the saga begins.asf */
2830 stream->ds_packet_size = packet_size;
2831 stream->ds_chunk_size = chunk_size;
2834 /* Descambling is enabled */
2835 stream->ds_packet_size = packet_size;
2836 stream->ds_chunk_size = chunk_size;
2839 /* Now skip the rest of the silence data */
2841 gst_bytestream_flush (demux->bs, data_size - 1);
2843 /* FIXME: CHECKME. And why -1? */
2844 if (data_size > 1) {
2845 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2846 goto not_enough_data;
2852 case ASF_CORRECTION_OFF:{
2853 GST_INFO ("Error correction off");
2854 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2855 goto not_enough_data;
2859 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2860 ("Audio stream using unknown error correction"));
2867 case ASF_STREAM_VIDEO:{
2868 asf_stream_video_format video_format_object;
2869 asf_stream_video video_object;
2872 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2873 goto not_enough_data;
2875 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2877 GST_INFO ("object is a video stream with %u bytes of "
2878 "additional data", vsize);
2880 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2882 goto not_enough_data;
2885 stream = gst_asf_demux_add_video_stream (demux, &video_format_object,
2886 stream_id, &data, &size);
2892 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2894 demux->other_streams =
2895 g_slist_append (demux->other_streams, GINT_TO_POINTER (stream_id));
2900 stream->inspect_payload = inspect_payload;
2905 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2906 /* we'll error out later if we found no streams */
2911 static const gchar *
2912 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2916 const gchar *asf_name;
2917 const gchar *gst_name;
2920 "WM/Genre", GST_TAG_GENRE}, {
2921 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2922 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2923 "WM/Picture", GST_TAG_IMAGE}, {
2924 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2925 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2926 "WM/Year", GST_TAG_DATE_TIME}
2927 /* { "WM/Composer", GST_TAG_COMPOSER } */
2932 if (name_utf8 == NULL) {
2933 GST_WARNING ("Failed to convert name to UTF8, skipping");
2937 out = strlen (name_utf8);
2939 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2940 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2941 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2942 return tags[i].gst_name;
2949 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2951 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2955 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2957 if (taglist == NULL)
2960 if (gst_tag_list_is_empty (taglist)) {
2961 gst_tag_list_unref (taglist);
2965 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2966 gst_tag_list_set_scope (t, GST_TAG_SCOPE_GLOBAL);
2968 gst_tag_list_unref (demux->taglist);
2969 gst_tag_list_unref (taglist);
2971 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2974 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2975 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2976 #define ASF_DEMUX_DATA_TYPE_BOOL 2
2977 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2980 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2984 const guint8 *img_data = NULL;
2985 guint32 img_data_len = 0;
2986 guint8 pic_type = 0;
2988 gst_byte_reader_init (&r, tag_data, tag_data_len);
2990 /* skip mime type string (we don't trust it and do our own typefinding),
2991 * and also skip the description string, since we don't use it */
2992 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
2993 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
2994 !gst_byte_reader_skip_string_utf16 (&r) ||
2995 !gst_byte_reader_skip_string_utf16 (&r) ||
2996 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
2997 goto not_enough_data;
3001 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
3002 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
3008 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
3009 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
3014 /* Extended Content Description Object */
3015 static GstFlowReturn
3016 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
3019 /* Other known (and unused) 'text/unicode' metadata available :
3022 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
3023 * WMFSDKVersion = 9.00.00.2980
3024 * WMFSDKNeeded = 0.0.0.0000
3025 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
3026 * WM/Publisher = 4AD
3028 * WM/ProviderRating = 8
3029 * WM/ProviderStyle = Rock (similar to WM/Genre)
3030 * WM/GenreID (similar to WM/Genre)
3031 * WM/TrackNumber (same as WM/Track but as a string)
3033 * Other known (and unused) 'non-text' metadata available :
3039 * We might want to read WM/TrackNumber and use atoi() if we don't have
3043 GstTagList *taglist;
3044 guint16 blockcount, i;
3045 gboolean content3D = FALSE;
3049 const gchar *interleave_name;
3050 GstASF3DMode interleaving_type;
3051 } stereoscopic_layout_map[] = {
3053 "SideBySideRF", GST_ASF_3D_SIDE_BY_SIDE_HALF_RL}, {
3054 "SideBySideLF", GST_ASF_3D_SIDE_BY_SIDE_HALF_LR}, {
3055 "OverUnderRT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL}, {
3056 "OverUnderLT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR}, {
3057 "DualStream", GST_ASF_3D_DUAL_STREAM}
3059 GST_INFO_OBJECT (demux, "object is an extended content description");
3061 taglist = gst_tag_list_new_empty ();
3063 /* Content Descriptor Count */
3065 goto not_enough_data;
3067 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3069 for (i = 1; i <= blockcount; ++i) {
3070 const gchar *gst_tag_name;
3074 GValue tag_value = { 0, };
3077 gchar *name_utf8 = NULL;
3081 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
3082 goto not_enough_data;
3086 goto not_enough_data;
3088 /* Descriptor Value Data Type */
3089 datatype = gst_asf_demux_get_uint16 (&data, &size);
3091 /* Descriptor Value (not really a string, but same thing reading-wise) */
3092 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
3094 goto not_enough_data;
3098 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
3100 if (name_utf8 != NULL) {
3101 GST_DEBUG ("Found tag/metadata %s", name_utf8);
3103 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
3104 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
3107 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
3110 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
3113 /* get rid of tags with empty value */
3114 if (value_utf8 != NULL && *value_utf8 != '\0') {
3115 GST_DEBUG ("string value %s", value_utf8);
3117 value_utf8[out] = '\0';
3119 if (gst_tag_name != NULL) {
3120 if (strcmp (gst_tag_name, GST_TAG_DATE_TIME) == 0) {
3121 guint year = atoi (value_utf8);
3124 g_value_init (&tag_value, GST_TYPE_DATE_TIME);
3125 g_value_take_boxed (&tag_value, gst_date_time_new_y (year));
3127 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
3128 guint id3v1_genre_id;
3129 const gchar *genre_str;
3131 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
3132 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
3133 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
3134 g_free (value_utf8);
3135 value_utf8 = g_strdup (genre_str);
3140 /* convert tag from string to other type if required */
3141 tag_type = gst_tag_get_type (gst_tag_name);
3142 g_value_init (&tag_value, tag_type);
3143 if (!gst_value_deserialize (&tag_value, value_utf8)) {
3144 GValue from_val = { 0, };
3146 g_value_init (&from_val, G_TYPE_STRING);
3147 g_value_set_string (&from_val, value_utf8);
3148 if (!g_value_transform (&from_val, &tag_value)) {
3149 GST_WARNING_OBJECT (demux,
3150 "Could not transform string tag to " "%s tag type %s",
3151 gst_tag_name, g_type_name (tag_type));
3152 g_value_unset (&tag_value);
3154 g_value_unset (&from_val);
3159 GST_DEBUG ("Setting metadata");
3160 g_value_init (&tag_value, G_TYPE_STRING);
3161 g_value_set_string (&tag_value, value_utf8);
3162 /* If we found a stereoscopic marker, look for StereoscopicLayout
3166 if (strncmp ("StereoscopicLayout", name_utf8,
3167 strlen (name_utf8)) == 0) {
3168 for (i = 0; i < G_N_ELEMENTS (stereoscopic_layout_map); i++) {
3169 if (g_str_equal (stereoscopic_layout_map[i].interleave_name,
3171 demux->asf_3D_mode =
3172 stereoscopic_layout_map[i].interleaving_type;
3173 GST_INFO ("find interleave type %u", demux->asf_3D_mode);
3177 GST_INFO_OBJECT (demux, "3d type is %u", demux->asf_3D_mode);
3179 demux->asf_3D_mode = GST_ASF_3D_NONE;
3180 GST_INFO_OBJECT (demux, "None 3d type");
3183 } else if (value_utf8 == NULL) {
3184 GST_WARNING ("Failed to convert string value to UTF8, skipping");
3186 GST_DEBUG ("Skipping empty string value for %s",
3187 GST_STR_NULL (gst_tag_name));
3189 g_free (value_utf8);
3192 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
3194 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
3195 GST_FIXME ("Unhandled byte array tag %s",
3196 GST_STR_NULL (gst_tag_name));
3199 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
3205 case ASF_DEMUX_DATA_TYPE_DWORD:{
3206 guint uint_val = GST_READ_UINT32_LE (value);
3208 /* this is the track number */
3209 g_value_init (&tag_value, G_TYPE_UINT);
3211 /* WM/Track counts from 0 */
3212 if (!strcmp (name_utf8, "WM/Track"))
3215 g_value_set_uint (&tag_value, uint_val);
3219 case ASF_DEMUX_DATA_TYPE_BOOL:{
3220 gboolean bool_val = GST_READ_UINT32_LE (value);
3222 if (strncmp ("Stereoscopic", name_utf8, strlen (name_utf8)) == 0) {
3224 GST_INFO_OBJECT (demux, "This is 3D contents");
3227 GST_INFO_OBJECT (demux, "This is not 3D contenst");
3235 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
3240 if (G_IS_VALUE (&tag_value)) {
3242 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
3244 /* WM/TrackNumber is more reliable than WM/Track, since the latter
3245 * is supposed to have a 0 base but is often wrongly written to start
3246 * from 1 as well, so prefer WM/TrackNumber when we have it: either
3247 * replace the value added earlier from WM/Track or put it first in
3248 * the list, so that it will get picked up by _get_uint() */
3249 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
3250 merge_mode = GST_TAG_MERGE_REPLACE;
3252 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
3255 GST_DEBUG ("Setting global metadata %s", name_utf8);
3256 gst_structure_set_value (demux->global_metadata, name_utf8,
3260 g_value_unset (&tag_value);
3269 gst_asf_demux_add_global_tags (demux, taglist);
3276 GST_WARNING ("Unexpected end of data parsing ext content desc object");
3277 gst_tag_list_unref (taglist);
3278 return GST_FLOW_OK; /* not really fatal */
3282 static GstStructure *
3283 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
3288 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
3290 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
3293 s = gst_caps_get_structure (demux->metadata, i);
3294 if (gst_structure_has_name (s, sname))
3298 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
3300 /* try lookup again; demux->metadata took ownership of the structure, so we
3301 * can't really make any assumptions about what happened to it, so we can't
3302 * just return it directly after appending it */
3303 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3306 static GstFlowReturn
3307 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
3310 guint16 blockcount, i;
3312 GST_INFO_OBJECT (demux, "object is a metadata object");
3314 /* Content Descriptor Count */
3316 goto not_enough_data;
3318 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3320 for (i = 0; i < blockcount; ++i) {
3322 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
3323 guint32 data_len, ival;
3326 if (size < (2 + 2 + 2 + 2 + 4))
3327 goto not_enough_data;
3329 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3330 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3331 name_len = gst_asf_demux_get_uint16 (&data, &size);
3332 data_type = gst_asf_demux_get_uint16 (&data, &size);
3333 data_len = gst_asf_demux_get_uint32 (&data, &size);
3335 if (size < name_len + data_len)
3336 goto not_enough_data;
3338 /* convert name to UTF-8 */
3339 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
3341 gst_asf_demux_skip_bytes (name_len, &data, &size);
3343 if (name_utf8 == NULL) {
3344 GST_WARNING ("Failed to convert value name to UTF8, skipping");
3345 gst_asf_demux_skip_bytes (data_len, &data, &size);
3349 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
3350 gst_asf_demux_skip_bytes (data_len, &data, &size);
3358 goto not_enough_data;
3361 ival = gst_asf_demux_get_uint32 (&data, &size);
3363 /* skip anything else there may be, just in case */
3364 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
3366 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3367 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
3371 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
3377 GST_WARNING ("Unexpected end of data parsing metadata object");
3378 return GST_FLOW_OK; /* not really fatal */
3382 static GstFlowReturn
3383 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
3385 GstFlowReturn ret = GST_FLOW_OK;
3386 guint32 i, num_objects;
3387 guint8 unknown G_GNUC_UNUSED;
3389 /* Get the rest of the header's header */
3390 if (size < (4 + 1 + 1))
3391 goto not_enough_data;
3393 num_objects = gst_asf_demux_get_uint32 (&data, &size);
3394 unknown = gst_asf_demux_get_uint8 (&data, &size);
3395 unknown = gst_asf_demux_get_uint8 (&data, &size);
3397 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
3399 /* Loop through the header's objects, processing those */
3400 for (i = 0; i < num_objects; ++i) {
3401 GST_INFO_OBJECT (demux, "reading header part %u", i);
3402 ret = gst_asf_demux_process_object (demux, &data, &size);
3403 if (ret != GST_FLOW_OK) {
3404 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
3413 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3414 ("short read parsing HEADER object"));
3415 return GST_FLOW_ERROR;
3419 static GstFlowReturn
3420 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
3422 guint64 creation_time G_GNUC_UNUSED;
3423 guint64 file_size G_GNUC_UNUSED;
3424 guint64 send_time G_GNUC_UNUSED;
3425 guint64 packets_count, play_time, preroll;
3426 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
3428 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
3429 goto not_enough_data;
3431 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
3432 file_size = gst_asf_demux_get_uint64 (&data, &size);
3433 creation_time = gst_asf_demux_get_uint64 (&data, &size);
3434 packets_count = gst_asf_demux_get_uint64 (&data, &size);
3435 play_time = gst_asf_demux_get_uint64 (&data, &size);
3436 send_time = gst_asf_demux_get_uint64 (&data, &size);
3437 preroll = gst_asf_demux_get_uint64 (&data, &size);
3438 flags = gst_asf_demux_get_uint32 (&data, &size);
3439 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3440 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3441 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3443 demux->broadcast = ! !(flags & 0x01);
3444 demux->seekable = ! !(flags & 0x02);
3446 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3447 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3448 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3450 if (demux->broadcast) {
3451 /* these fields are invalid if the broadcast flag is set */
3456 if (min_pktsize != max_pktsize)
3457 goto non_fixed_packet_size;
3459 demux->packet_size = max_pktsize;
3461 /* FIXME: do we need send_time as well? what is it? */
3462 if ((play_time * 100) >= (preroll * GST_MSECOND))
3463 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3465 demux->play_time = 0;
3467 demux->preroll = preroll * GST_MSECOND;
3469 /* initial latency */
3470 demux->latency = demux->preroll;
3472 if (demux->play_time == 0)
3473 demux->seekable = FALSE;
3475 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3476 GST_TIME_ARGS (demux->play_time));
3477 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3478 GST_TIME_ARGS (demux->preroll));
3480 if (demux->play_time > 0) {
3481 demux->segment.duration = demux->play_time;
3484 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3486 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3491 non_fixed_packet_size:
3493 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3494 ("packet size must be fixed"));
3495 return GST_FLOW_ERROR;
3499 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3500 ("short read parsing FILE object"));
3501 return GST_FLOW_ERROR;
3505 /* Content Description Object */
3506 static GstFlowReturn
3507 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3511 const gchar *gst_tag;
3516 GST_TAG_TITLE, 0, NULL}, {
3517 GST_TAG_ARTIST, 0, NULL}, {
3518 GST_TAG_COPYRIGHT, 0, NULL}, {
3519 GST_TAG_DESCRIPTION, 0, NULL}, {
3520 GST_TAG_COMMENT, 0, NULL}
3522 GstTagList *taglist;
3523 GValue value = { 0 };
3527 GST_INFO_OBJECT (demux, "object is a comment");
3529 if (size < (2 + 2 + 2 + 2 + 2))
3530 goto not_enough_data;
3532 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3533 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3534 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3535 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3536 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3538 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3539 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3540 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3542 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3543 if (size < tags[i].val_length)
3544 goto not_enough_data;
3546 /* might be just '/0', '/0'... */
3547 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3548 /* convert to UTF-8 */
3549 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3550 "UTF-8", "UTF-16LE", &in, &out, NULL);
3552 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3555 /* parse metadata into taglist */
3556 taglist = gst_tag_list_new_empty ();
3557 g_value_init (&value, G_TYPE_STRING);
3558 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3559 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3560 g_value_set_string (&value, tags[i].val_utf8);
3561 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3562 tags[i].gst_tag, &value, NULL);
3565 g_value_unset (&value);
3567 gst_asf_demux_add_global_tags (demux, taglist);
3569 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3570 g_free (tags[i].val_utf8);
3576 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3577 "comment tag section %d, skipping comment object", i);
3578 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3579 g_free (tags[i].val_utf8);
3580 return GST_FLOW_OK; /* not really fatal */
3584 static GstFlowReturn
3585 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3588 guint16 num_streams, i;
3592 goto not_enough_data;
3594 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3596 GST_INFO ("object is a bitrate properties object with %u streams",
3599 if (size < (num_streams * (2 + 4)))
3600 goto not_enough_data;
3602 for (i = 0; i < num_streams; ++i) {
3606 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3607 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3609 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3610 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3611 stream = gst_asf_demux_get_stream (demux, stream_id);
3613 if (stream->pending_tags == NULL) {
3614 stream->pending_tags =
3615 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3618 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3621 GST_WARNING ("stream id %u is too large", stream_id);
3629 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3630 return GST_FLOW_OK; /* not really fatal */
3634 static GstFlowReturn
3635 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3638 GstFlowReturn ret = GST_FLOW_OK;
3641 /* Get the rest of the header's header */
3642 if (size < (16 + 2 + 4))
3643 goto not_enough_data;
3645 /* skip GUID and two other bytes */
3646 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3647 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3649 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3651 /* FIXME: does data_size include the rest of the header that we have read? */
3652 if (hdr_size > size)
3653 goto not_enough_data;
3655 while (hdr_size > 0) {
3656 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3657 if (ret != GST_FLOW_OK)
3665 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3666 ("short read parsing extended header object"));
3667 return GST_FLOW_ERROR;
3671 static GstFlowReturn
3672 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3678 goto not_enough_data;
3680 if (demux->languages) {
3681 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3682 g_strfreev (demux->languages);
3683 demux->languages = NULL;
3684 demux->num_languages = 0;
3687 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3688 GST_LOG ("%u languages:", demux->num_languages);
3690 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3691 for (i = 0; i < demux->num_languages; ++i) {
3692 guint8 len, *lang_data = NULL;
3695 goto not_enough_data;
3696 len = gst_asf_demux_get_uint8 (&data, &size);
3697 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3700 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3703 /* truncate "en-us" etc. to just "en" */
3704 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3707 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3708 demux->languages[i] = utf8;
3711 goto not_enough_data;
3719 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3720 g_free (demux->languages);
3721 demux->languages = NULL;
3722 return GST_FLOW_OK; /* not fatal */
3726 static GstFlowReturn
3727 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3730 GstClockTime interval;
3733 if (size < (16 + 8 + 4 + 4))
3734 goto not_enough_data;
3737 gst_asf_demux_skip_bytes (16, &data, &size);
3738 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3739 gst_asf_demux_skip_bytes (4, &data, &size);
3740 count = gst_asf_demux_get_uint32 (&data, &size);
3742 demux->sidx_interval = interval;
3743 demux->sidx_num_entries = count;
3744 g_free (demux->sidx_entries);
3745 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3747 for (i = 0; i < count; ++i) {
3748 if (G_UNLIKELY (size < 6)) {
3749 /* adjust for broken files, to avoid having entries at the end
3750 * of the parsed index that point to time=0. Resulting in seeking to
3751 * the end of the file leading back to the beginning */
3752 demux->sidx_num_entries -= (count - i);
3755 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3756 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3757 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3758 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3759 demux->sidx_entries[i].count);
3762 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3769 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3770 return GST_FLOW_OK; /* not fatal */
3774 static GstFlowReturn
3775 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3776 guint8 * data, guint64 size)
3781 if (size < 16 + 2 + (2 * 2))
3782 goto not_enough_data;
3784 gst_asf_demux_get_guid (&guid, &data, &size);
3785 num = gst_asf_demux_get_uint16 (&data, &size);
3788 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3792 if (size < (num * sizeof (guint16)))
3793 goto not_enough_data;
3795 /* read mutually exclusive stream numbers */
3796 for (i = 0; i < num; ++i) {
3798 mes = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3799 GST_LOG_OBJECT (demux, "mutually exclusive: stream %d", mes);
3801 demux->mut_ex_streams =
3802 g_slist_append (demux->mut_ex_streams, GINT_TO_POINTER (mes));
3811 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3812 return GST_FLOW_OK; /* not absolutely fatal */
3817 gst_asf_demux_is_unknown_stream (GstASFDemux * demux, guint stream_num)
3819 return g_slist_find (demux->other_streams,
3820 GINT_TO_POINTER (stream_num)) == NULL;
3823 static GstFlowReturn
3824 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3827 AsfStreamExtProps esp;
3828 AsfStream *stream = NULL;
3829 AsfObject stream_obj;
3830 guint16 stream_name_count;
3831 guint16 num_payload_ext;
3833 guint8 *stream_obj_data = NULL;
3836 guint i, stream_num;
3839 obj_size = (guint) size;
3842 goto not_enough_data;
3845 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3846 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3847 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3848 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3849 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3850 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3851 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3852 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3853 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3854 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3855 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3856 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3857 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3858 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3859 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3861 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3862 GST_TIME_ARGS (esp.start_time));
3863 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3864 GST_TIME_ARGS (esp.end_time));
3865 GST_INFO ("flags = %08x", esp.flags);
3866 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3867 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3868 GST_INFO ("stream number = %u", stream_num);
3869 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3870 (esp.lang_idx < demux->num_languages) ?
3871 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3872 GST_INFO ("stream name count = %u", stream_name_count);
3874 /* read stream names */
3875 for (i = 0; i < stream_name_count; ++i) {
3876 guint16 stream_lang_idx G_GNUC_UNUSED;
3877 gchar *stream_name = NULL;
3880 goto not_enough_data;
3881 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3882 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3883 goto not_enough_data;
3884 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3885 g_free (stream_name); /* TODO: store names in struct */
3888 /* read payload extension systems stuff */
3889 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3891 if (num_payload_ext > 0)
3892 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3894 esp.payload_extensions = NULL;
3896 for (i = 0; i < num_payload_ext; ++i) {
3897 AsfPayloadExtension ext;
3899 guint32 sys_info_len;
3901 if (size < 16 + 2 + 4)
3902 goto not_enough_data;
3904 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3905 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3906 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3908 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3909 GST_LOG ("payload systems info len = %u", sys_info_len);
3910 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3911 goto not_enough_data;
3913 esp.payload_extensions[i] = ext;
3916 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3918 /* there might be an optional STREAM_INFO object here now; if not, we
3919 * should have parsed the corresponding stream info object already (since
3920 * we are parsing the extended stream properties objects delayed) */
3922 stream = gst_asf_demux_get_stream (demux, stream_num);
3926 /* get size of the stream object */
3927 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3928 goto not_enough_data;
3930 if (stream_obj.id != ASF_OBJ_STREAM)
3931 goto expected_stream_object;
3933 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3934 stream_obj.size > (10 * 1024 * 1024))
3935 goto not_enough_data;
3937 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3939 /* process this stream object later after all the other 'normal' ones
3940 * have been processed (since the others are more important/non-hidden) */
3941 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3942 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3943 goto not_enough_data;
3945 /* parse stream object */
3946 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3947 g_free (stream_obj_data);
3952 stream->ext_props = esp;
3954 /* try to set the framerate */
3955 if (stream->is_video && stream->caps) {
3956 GValue framerate = { 0 };
3960 g_value_init (&framerate, GST_TYPE_FRACTION);
3962 num = GST_SECOND / 100;
3963 denom = esp.avg_time_per_frame;
3965 /* avoid division by 0, assume 25/1 framerate */
3966 denom = GST_SECOND / 2500;
3969 gst_value_set_fraction (&framerate, num, denom);
3971 stream->caps = gst_caps_make_writable (stream->caps);
3972 s = gst_caps_get_structure (stream->caps, 0);
3973 gst_structure_set_value (s, "framerate", &framerate);
3974 g_value_unset (&framerate);
3975 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3976 num, denom, ((gdouble) num) / denom);
3979 /* add language info now if we have it */
3980 if (stream->ext_props.lang_idx < demux->num_languages) {
3981 if (stream->pending_tags == NULL)
3982 stream->pending_tags = gst_tag_list_new_empty ();
3983 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3984 demux->languages[stream->ext_props.lang_idx]);
3985 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3986 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
3989 } else if (gst_asf_demux_is_unknown_stream (demux, stream_num)) {
3990 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
3998 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
3999 return GST_FLOW_OK; /* not absolutely fatal */
4001 expected_stream_object:
4003 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
4004 "object: expected embedded stream object, but got %s object instead!",
4005 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
4006 return GST_FLOW_OK; /* not absolutely fatal */
4010 static const gchar *
4011 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
4015 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
4016 if (g_str_has_prefix (nick, "ASF_OBJ_"))
4017 nick += strlen ("ASF_OBJ_");
4019 if (demux->objpath == NULL) {
4020 demux->objpath = g_strdup (nick);
4024 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
4025 g_free (demux->objpath);
4026 demux->objpath = newpath;
4029 return (const gchar *) demux->objpath;
4033 gst_asf_demux_pop_obj (GstASFDemux * demux)
4037 if ((s = g_strrstr (demux->objpath, "/"))) {
4040 g_free (demux->objpath);
4041 demux->objpath = NULL;
4046 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
4051 /* Parse the queued extended stream property objects and add the info
4052 * to the existing streams or add the new embedded streams, but without
4053 * activating them yet */
4054 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
4055 g_slist_length (demux->ext_stream_props));
4057 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
4058 GstBuffer *buf = GST_BUFFER (l->data);
4061 gst_buffer_map (buf, &map, GST_MAP_READ);
4063 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
4064 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
4065 gst_buffer_unmap (buf, &map);
4066 gst_buffer_unref (buf);
4068 g_slist_free (demux->ext_stream_props);
4069 demux->ext_stream_props = NULL;
4074 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
4078 for (i = 0; i < demux->num_streams; ++i) {
4083 stream = &demux->stream[i];
4085 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
4087 if (stream->active) {
4088 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
4093 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
4096 /* check for each mutual exclusion whether it affects this stream */
4097 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4098 if (*mes == stream->id) {
4099 /* if yes, check if we've already added streams that are mutually
4100 * exclusive with the stream we're about to add */
4101 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4102 for (j = 0; j < demux->num_streams; ++j) {
4103 /* if the broadcast flag is set, assume the hidden streams aren't
4104 * actually streamed and hide them (or playbin won't work right),
4105 * otherwise assume their data is available */
4106 if (demux->stream[j].id == *mes && demux->broadcast) {
4108 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
4109 "mutually exclusive with already existing stream ID %d, "
4110 "hiding stream", stream->id, demux->stream[j].id);
4122 /* FIXME: we should do stream activation based on preroll data in
4123 * streaming mode too */
4124 if (demux->streaming && !is_hidden)
4125 gst_asf_demux_activate_stream (demux, stream);
4130 static GstFlowReturn
4131 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
4134 GstFlowReturn ret = GST_FLOW_OK;
4136 guint64 obj_data_size;
4138 if (*p_size < ASF_OBJECT_HEADER_SIZE)
4139 return ASF_FLOW_NEED_MORE_DATA;
4141 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
4142 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
4144 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
4146 if (*p_size < obj_data_size)
4147 return ASF_FLOW_NEED_MORE_DATA;
4149 gst_asf_demux_push_obj (demux, obj.id);
4151 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
4154 case ASF_OBJ_STREAM:
4155 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
4159 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
4161 case ASF_OBJ_HEADER:
4162 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
4164 case ASF_OBJ_COMMENT:
4165 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
4168 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
4170 case ASF_OBJ_BITRATE_PROPS:
4172 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
4175 case ASF_OBJ_EXT_CONTENT_DESC:
4177 gst_asf_demux_process_ext_content_desc (demux, *p_data,
4180 case ASF_OBJ_METADATA_OBJECT:
4181 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
4183 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
4186 /* process these later, we might not have parsed the corresponding
4187 * stream object yet */
4188 GST_LOG ("%s: queued for later parsing", demux->objpath);
4189 buf = gst_buffer_new_and_alloc (obj_data_size);
4190 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
4191 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
4195 case ASF_OBJ_LANGUAGE_LIST:
4196 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
4198 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
4199 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
4202 case ASF_OBJ_SIMPLE_INDEX:
4203 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
4205 case ASF_OBJ_CONTENT_ENCRYPTION:
4206 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
4207 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
4208 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
4209 goto error_encrypted;
4210 case ASF_OBJ_CONCEAL_NONE:
4212 case ASF_OBJ_UNDEFINED:
4213 case ASF_OBJ_CODEC_COMMENT:
4215 case ASF_OBJ_PADDING:
4216 case ASF_OBJ_BITRATE_MUTEX:
4217 case ASF_OBJ_COMPATIBILITY:
4218 case ASF_OBJ_INDEX_PLACEHOLDER:
4219 case ASF_OBJ_INDEX_PARAMETERS:
4220 case ASF_OBJ_STREAM_PRIORITIZATION:
4221 case ASF_OBJ_SCRIPT_COMMAND:
4222 case ASF_OBJ_METADATA_LIBRARY_OBJECT:
4224 /* Unknown/unhandled object, skip it and hope for the best */
4225 GST_INFO ("%s: skipping object", demux->objpath);
4230 /* this can't fail, we checked the number of bytes available before */
4231 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
4233 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
4235 gst_asf_demux_pop_obj (demux);
4242 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
4243 return GST_FLOW_ERROR;
4248 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
4249 GstBuffer ** p_buffer)
4251 GstBuffer *descrambled_buffer;
4252 GstBuffer *scrambled_buffer;
4253 GstBuffer *sub_buffer;
4260 /* descrambled_buffer is initialised in the first iteration */
4261 descrambled_buffer = NULL;
4262 scrambled_buffer = *p_buffer;
4264 if (gst_buffer_get_size (scrambled_buffer) <
4265 stream->ds_packet_size * stream->span)
4268 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
4269 offset += stream->ds_chunk_size) {
4270 off = offset / stream->ds_chunk_size;
4271 row = off / stream->span;
4272 col = off % stream->span;
4273 idx = row + col * stream->ds_packet_size / stream->ds_chunk_size;
4274 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
4275 col, off, stream->ds_chunk_size);
4276 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
4277 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
4278 stream->span, stream->ds_packet_size);
4279 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
4280 gst_buffer_get_size (scrambled_buffer));
4282 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_MEMORY,
4283 idx * stream->ds_chunk_size, stream->ds_chunk_size);
4285 descrambled_buffer = sub_buffer;
4287 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
4291 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
4292 GST_BUFFER_TIMESTAMP (scrambled_buffer);
4293 GST_BUFFER_DURATION (descrambled_buffer) =
4294 GST_BUFFER_DURATION (scrambled_buffer);
4295 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
4296 GST_BUFFER_OFFSET_END (descrambled_buffer) =
4297 GST_BUFFER_OFFSET_END (scrambled_buffer);
4299 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
4301 gst_buffer_unref (scrambled_buffer);
4302 *p_buffer = descrambled_buffer;
4306 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
4308 GstASFDemux *demux = GST_ASF_DEMUX (element);
4311 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
4313 for (i = 0; i < demux->num_streams; ++i) {
4314 gst_event_ref (event);
4315 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
4316 GST_OBJECT_CAST (element), event)) {
4317 gst_event_unref (event);
4322 gst_event_unref (event);
4326 /* takes ownership of the passed event */
4328 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
4330 gboolean ret = TRUE;
4333 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
4334 GST_EVENT_TYPE_NAME (event));
4336 for (i = 0; i < demux->num_streams; ++i) {
4337 gst_event_ref (event);
4338 ret &= gst_pad_push_event (demux->stream[i].pad, event);
4340 gst_event_unref (event);
4345 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
4349 gboolean res = FALSE;
4351 demux = GST_ASF_DEMUX (parent);
4353 GST_DEBUG ("handling %s query",
4354 gst_query_type_get_name (GST_QUERY_TYPE (query)));
4356 switch (GST_QUERY_TYPE (query)) {
4357 case GST_QUERY_DURATION:
4361 gst_query_parse_duration (query, &format, NULL);
4363 if (format != GST_FORMAT_TIME) {
4364 GST_LOG ("only support duration queries in TIME format");
4368 res = gst_pad_query_default (pad, parent, query);
4370 GST_OBJECT_LOCK (demux);
4372 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
4373 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
4374 GST_TIME_ARGS (demux->segment.duration));
4376 gst_query_set_duration (query, GST_FORMAT_TIME,
4377 demux->segment.duration);
4381 GST_LOG ("duration not known yet");
4384 GST_OBJECT_UNLOCK (demux);
4389 case GST_QUERY_POSITION:{
4392 gst_query_parse_position (query, &format, NULL);
4394 if (format != GST_FORMAT_TIME) {
4395 GST_LOG ("only support position queries in TIME format");
4399 GST_OBJECT_LOCK (demux);
4401 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
4402 GST_LOG ("returning position: %" GST_TIME_FORMAT,
4403 GST_TIME_ARGS (demux->segment.position));
4405 gst_query_set_position (query, GST_FORMAT_TIME,
4406 demux->segment.position);
4410 GST_LOG ("position not known yet");
4413 GST_OBJECT_UNLOCK (demux);
4417 case GST_QUERY_SEEKING:{
4420 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
4421 if (format == GST_FORMAT_TIME) {
4424 GST_OBJECT_LOCK (demux);
4425 duration = demux->segment.duration;
4426 GST_OBJECT_UNLOCK (demux);
4428 if (!demux->streaming || !demux->seekable) {
4429 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
4436 /* try upstream first in TIME */
4437 res = gst_pad_query_default (pad, parent, query);
4439 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
4440 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4441 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4442 /* if no luck, maybe in BYTES */
4443 if (!seekable || fmt != GST_FORMAT_TIME) {
4446 q = gst_query_new_seeking (GST_FORMAT_BYTES);
4447 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
4448 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
4449 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4450 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4451 if (fmt != GST_FORMAT_BYTES)
4454 gst_query_unref (q);
4455 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4461 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4465 case GST_QUERY_LATENCY:
4468 GstClockTime min, max;
4470 /* preroll delay does not matter in non-live pipeline,
4471 * but we might end up in a live (rtsp) one ... */
4474 res = gst_pad_query_default (pad, parent, query);
4478 gst_query_parse_latency (query, &live, &min, &max);
4480 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4481 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4482 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4484 GST_OBJECT_LOCK (demux);
4485 min += demux->latency;
4487 max += demux->latency;
4488 GST_OBJECT_UNLOCK (demux);
4490 gst_query_set_latency (query, live, min, max);
4493 case GST_QUERY_SEGMENT:
4498 format = demux->segment.format;
4501 gst_segment_to_stream_time (&demux->segment, format,
4502 demux->segment.start);
4503 if ((stop = demux->segment.stop) == -1)
4504 stop = demux->segment.duration;
4506 stop = gst_segment_to_stream_time (&demux->segment, format, stop);
4508 gst_query_set_segment (query, demux->segment.rate, format, start, stop);
4513 res = gst_pad_query_default (pad, parent, query);
4520 static GstStateChangeReturn
4521 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4523 GstASFDemux *demux = GST_ASF_DEMUX (element);
4524 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4526 switch (transition) {
4527 case GST_STATE_CHANGE_NULL_TO_READY:{
4528 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4529 demux->need_newsegment = TRUE;
4530 demux->segment_running = FALSE;
4531 demux->accurate = FALSE;
4532 demux->adapter = gst_adapter_new ();
4533 demux->metadata = gst_caps_new_empty ();
4534 demux->global_metadata = gst_structure_new_empty ("metadata");
4535 demux->data_size = 0;
4536 demux->data_offset = 0;
4537 demux->index_offset = 0;
4538 demux->base_offset = 0;
4539 demux->flowcombiner = gst_flow_combiner_new ();
4546 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4547 if (ret == GST_STATE_CHANGE_FAILURE)
4550 switch (transition) {
4551 case GST_STATE_CHANGE_PAUSED_TO_READY:
4552 gst_asf_demux_reset (demux, FALSE);
4555 case GST_STATE_CHANGE_READY_TO_NULL:
4556 gst_asf_demux_reset (demux, FALSE);
4557 gst_flow_combiner_free (demux->flowcombiner);
4558 demux->flowcombiner = NULL;