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");
2575 GstBuffer *buf = gst_value_get_buffer (value);
2578 if (gst_buffer_map (buf, &mapinfo, GST_MAP_READ)) {
2579 if (mapinfo.size >= 4 && GST_READ_UINT32_BE (mapinfo.data) == 1) {
2580 /* this looks like a bytestream start */
2581 streamheader = gst_buffer_ref (buf);
2582 gst_asf_demux_add_stream_headers_to_caps (demux, buf, caps_s);
2583 gst_structure_remove_field (caps_s, "codec_data");
2586 gst_buffer_unmap (buf, &mapinfo);
2590 /* For a 3D video, set multiview information into the caps based on
2591 * what was detected during object parsing */
2592 if (demux->asf_3D_mode != GST_ASF_3D_NONE) {
2593 GstVideoMultiviewMode mv_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
2594 GstVideoMultiviewFlags mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
2595 const gchar *mview_mode_str;
2597 switch (demux->asf_3D_mode) {
2598 case GST_ASF_3D_SIDE_BY_SIDE_HALF_LR:
2599 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2601 case GST_ASF_3D_SIDE_BY_SIDE_HALF_RL:
2602 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2603 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2605 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR:
2606 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2608 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL:
2609 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2610 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2612 case GST_ASF_3D_DUAL_STREAM:{
2613 gboolean is_right_view = FALSE;
2614 /* if Advanced_Mutual_Exclusion object exists, use it
2615 * to figure out which is the left view (lower ID) */
2616 if (demux->mut_ex_streams != NULL) {
2620 length = g_slist_length (demux->mut_ex_streams);
2622 for (i = 0; i < length; i++) {
2625 v_s_id = g_slist_nth_data (demux->mut_ex_streams, i);
2627 GST_DEBUG_OBJECT (demux,
2628 "has Mutual_Exclusion object. stream id in object is %d",
2629 GPOINTER_TO_INT (v_s_id));
2631 if (id > GPOINTER_TO_INT (v_s_id))
2632 is_right_view = TRUE;
2635 /* if the Advaced_Mutual_Exclusion object doesn't exist, assume the
2636 * first video stream encountered has the lower ID */
2637 if (demux->num_video_streams > 0) {
2638 /* This is not the first video stream, assuming right eye view */
2639 is_right_view = TRUE;
2643 mv_mode = GST_VIDEO_MULTIVIEW_MODE_RIGHT;
2645 mv_mode = GST_VIDEO_MULTIVIEW_MODE_LEFT;
2652 GST_INFO_OBJECT (demux,
2653 "stream_id %d, has multiview-mode %d flags 0x%x", id, mv_mode,
2656 mview_mode_str = gst_video_multiview_mode_to_caps_string (mv_mode);
2657 if (mview_mode_str != NULL) {
2658 if (gst_video_multiview_guess_half_aspect (mv_mode, video->width,
2659 video->height, par_w, par_h))
2660 mv_flags |= GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT;
2662 gst_caps_set_simple (caps,
2663 "multiview-mode", G_TYPE_STRING, mview_mode_str,
2664 "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mv_flags,
2665 GST_FLAG_SET_MASK_EXACT, NULL);
2670 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2671 g_free (codec_name);
2675 gst_buffer_unref (extradata);
2677 GST_INFO ("Adding video stream #%u, id %u, codec %"
2678 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2679 GST_FOURCC_ARGS (video->tag), video->tag);
2681 ++demux->num_video_streams;
2683 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE,
2684 streamheader, tags);
2688 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2690 if (!stream->active) {
2694 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2695 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2696 gst_pad_set_active (stream->pad, TRUE);
2699 gst_pad_create_stream_id_printf (stream->pad, GST_ELEMENT_CAST (demux),
2700 "%03u", stream->id);
2703 gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
2705 if (gst_event_parse_group_id (event, &demux->group_id))
2706 demux->have_group_id = TRUE;
2708 demux->have_group_id = FALSE;
2709 gst_event_unref (event);
2710 } else if (!demux->have_group_id) {
2711 demux->have_group_id = TRUE;
2712 demux->group_id = gst_util_group_id_next ();
2715 event = gst_event_new_stream_start (stream_id);
2716 if (demux->have_group_id)
2717 gst_event_set_group_id (event, demux->group_id);
2719 gst_pad_push_event (stream->pad, event);
2721 gst_pad_set_caps (stream->pad, stream->caps);
2723 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2724 gst_flow_combiner_add_pad (demux->flowcombiner, stream->pad);
2725 stream->active = TRUE;
2730 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2733 AsfCorrectionType correction_type;
2734 AsfStreamType stream_type;
2735 GstClockTime time_offset;
2736 gboolean is_encrypted G_GNUC_UNUSED;
2740 guint stream_specific_size;
2741 guint type_specific_size G_GNUC_UNUSED;
2742 guint unknown G_GNUC_UNUSED;
2743 gboolean inspect_payload = FALSE;
2744 AsfStream *stream = NULL;
2746 /* Get the rest of the header's header */
2747 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2748 goto not_enough_data;
2750 gst_asf_demux_get_guid (&guid, &data, &size);
2751 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2753 gst_asf_demux_get_guid (&guid, &data, &size);
2754 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2756 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2758 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2759 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2761 flags = gst_asf_demux_get_uint16 (&data, &size);
2762 stream_id = flags & 0x7f;
2763 is_encrypted = ! !((flags & 0x8000) << 15);
2764 unknown = gst_asf_demux_get_uint32 (&data, &size);
2766 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2767 stream_id, GST_TIME_ARGS (time_offset));
2769 /* dvr-ms has audio stream declared in stream specific data */
2770 if (stream_type == ASF_STREAM_EXT_EMBED_HEADER) {
2771 AsfExtStreamType ext_stream_type;
2772 gst_asf_demux_get_guid (&guid, &data, &size);
2773 ext_stream_type = gst_asf_demux_identify_guid (asf_ext_stream_guids, &guid);
2775 if (ext_stream_type == ASF_EXT_STREAM_AUDIO) {
2776 inspect_payload = TRUE;
2778 gst_asf_demux_get_guid (&guid, &data, &size);
2779 gst_asf_demux_get_uint32 (&data, &size);
2780 gst_asf_demux_get_uint32 (&data, &size);
2781 gst_asf_demux_get_uint32 (&data, &size);
2782 gst_asf_demux_get_guid (&guid, &data, &size);
2783 gst_asf_demux_get_uint32 (&data, &size);
2784 stream_type = ASF_STREAM_AUDIO;
2788 switch (stream_type) {
2789 case ASF_STREAM_AUDIO:{
2790 asf_stream_audio audio_object;
2792 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2793 goto not_enough_data;
2795 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2798 stream = gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2801 switch (correction_type) {
2802 case ASF_CORRECTION_ON:{
2803 guint span, packet_size, chunk_size, data_size, silence_data;
2805 GST_INFO ("Using error correction");
2807 if (size < (1 + 2 + 2 + 2 + 1))
2808 goto not_enough_data;
2810 span = gst_asf_demux_get_uint8 (&data, &size);
2811 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2812 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2813 data_size = gst_asf_demux_get_uint16 (&data, &size);
2814 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2816 stream->span = span;
2818 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2819 packet_size, chunk_size, data_size, span, silence_data);
2821 if (stream->span > 1) {
2822 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2823 /* Disable descrambling */
2826 /* FIXME: this else branch was added for
2827 * weird_al_yankovic - the saga begins.asf */
2828 stream->ds_packet_size = packet_size;
2829 stream->ds_chunk_size = chunk_size;
2832 /* Descambling is enabled */
2833 stream->ds_packet_size = packet_size;
2834 stream->ds_chunk_size = chunk_size;
2837 /* Now skip the rest of the silence data */
2839 gst_bytestream_flush (demux->bs, data_size - 1);
2841 /* FIXME: CHECKME. And why -1? */
2842 if (data_size > 1) {
2843 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2844 goto not_enough_data;
2850 case ASF_CORRECTION_OFF:{
2851 GST_INFO ("Error correction off");
2852 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2853 goto not_enough_data;
2857 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2858 ("Audio stream using unknown error correction"));
2865 case ASF_STREAM_VIDEO:{
2866 asf_stream_video_format video_format_object;
2867 asf_stream_video video_object;
2870 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2871 goto not_enough_data;
2873 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2875 GST_INFO ("object is a video stream with %u bytes of "
2876 "additional data", vsize);
2878 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2880 goto not_enough_data;
2883 stream = gst_asf_demux_add_video_stream (demux, &video_format_object,
2884 stream_id, &data, &size);
2890 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2892 demux->other_streams =
2893 g_slist_append (demux->other_streams, GINT_TO_POINTER (stream_id));
2898 stream->inspect_payload = inspect_payload;
2903 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2904 /* we'll error out later if we found no streams */
2909 static const gchar *
2910 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2914 const gchar *asf_name;
2915 const gchar *gst_name;
2918 "WM/Genre", GST_TAG_GENRE}, {
2919 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2920 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2921 "WM/Picture", GST_TAG_IMAGE}, {
2922 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2923 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2924 "WM/Year", GST_TAG_DATE_TIME}
2925 /* { "WM/Composer", GST_TAG_COMPOSER } */
2930 if (name_utf8 == NULL) {
2931 GST_WARNING ("Failed to convert name to UTF8, skipping");
2935 out = strlen (name_utf8);
2937 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2938 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2939 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2940 return tags[i].gst_name;
2947 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2949 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2953 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2955 if (taglist == NULL)
2958 if (gst_tag_list_is_empty (taglist)) {
2959 gst_tag_list_unref (taglist);
2963 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2964 gst_tag_list_set_scope (t, GST_TAG_SCOPE_GLOBAL);
2966 gst_tag_list_unref (demux->taglist);
2967 gst_tag_list_unref (taglist);
2969 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2972 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2973 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2974 #define ASF_DEMUX_DATA_TYPE_BOOL 2
2975 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2978 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2982 const guint8 *img_data = NULL;
2983 guint32 img_data_len = 0;
2984 guint8 pic_type = 0;
2986 gst_byte_reader_init (&r, tag_data, tag_data_len);
2988 /* skip mime type string (we don't trust it and do our own typefinding),
2989 * and also skip the description string, since we don't use it */
2990 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
2991 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
2992 !gst_byte_reader_skip_string_utf16 (&r) ||
2993 !gst_byte_reader_skip_string_utf16 (&r) ||
2994 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
2995 goto not_enough_data;
2999 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
3000 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
3006 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
3007 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
3012 /* Extended Content Description Object */
3013 static GstFlowReturn
3014 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
3017 /* Other known (and unused) 'text/unicode' metadata available :
3020 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
3021 * WMFSDKVersion = 9.00.00.2980
3022 * WMFSDKNeeded = 0.0.0.0000
3023 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
3024 * WM/Publisher = 4AD
3026 * WM/ProviderRating = 8
3027 * WM/ProviderStyle = Rock (similar to WM/Genre)
3028 * WM/GenreID (similar to WM/Genre)
3029 * WM/TrackNumber (same as WM/Track but as a string)
3031 * Other known (and unused) 'non-text' metadata available :
3037 * We might want to read WM/TrackNumber and use atoi() if we don't have
3041 GstTagList *taglist;
3042 guint16 blockcount, i;
3043 gboolean content3D = FALSE;
3047 const gchar *interleave_name;
3048 GstASF3DMode interleaving_type;
3049 } stereoscopic_layout_map[] = {
3051 "SideBySideRF", GST_ASF_3D_SIDE_BY_SIDE_HALF_RL}, {
3052 "SideBySideLF", GST_ASF_3D_SIDE_BY_SIDE_HALF_LR}, {
3053 "OverUnderRT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL}, {
3054 "OverUnderLT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR}, {
3055 "DualStream", GST_ASF_3D_DUAL_STREAM}
3057 GST_INFO_OBJECT (demux, "object is an extended content description");
3059 taglist = gst_tag_list_new_empty ();
3061 /* Content Descriptor Count */
3063 goto not_enough_data;
3065 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3067 for (i = 1; i <= blockcount; ++i) {
3068 const gchar *gst_tag_name;
3072 GValue tag_value = { 0, };
3075 gchar *name_utf8 = NULL;
3079 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
3080 goto not_enough_data;
3084 goto not_enough_data;
3086 /* Descriptor Value Data Type */
3087 datatype = gst_asf_demux_get_uint16 (&data, &size);
3089 /* Descriptor Value (not really a string, but same thing reading-wise) */
3090 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
3092 goto not_enough_data;
3096 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
3098 if (name_utf8 != NULL) {
3099 GST_DEBUG ("Found tag/metadata %s", name_utf8);
3101 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
3102 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
3105 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
3108 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
3111 /* get rid of tags with empty value */
3112 if (value_utf8 != NULL && *value_utf8 != '\0') {
3113 GST_DEBUG ("string value %s", value_utf8);
3115 value_utf8[out] = '\0';
3117 if (gst_tag_name != NULL) {
3118 if (strcmp (gst_tag_name, GST_TAG_DATE_TIME) == 0) {
3119 guint year = atoi (value_utf8);
3122 g_value_init (&tag_value, GST_TYPE_DATE_TIME);
3123 g_value_take_boxed (&tag_value, gst_date_time_new_y (year));
3125 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
3126 guint id3v1_genre_id;
3127 const gchar *genre_str;
3129 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
3130 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
3131 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
3132 g_free (value_utf8);
3133 value_utf8 = g_strdup (genre_str);
3138 /* convert tag from string to other type if required */
3139 tag_type = gst_tag_get_type (gst_tag_name);
3140 g_value_init (&tag_value, tag_type);
3141 if (!gst_value_deserialize (&tag_value, value_utf8)) {
3142 GValue from_val = { 0, };
3144 g_value_init (&from_val, G_TYPE_STRING);
3145 g_value_set_string (&from_val, value_utf8);
3146 if (!g_value_transform (&from_val, &tag_value)) {
3147 GST_WARNING_OBJECT (demux,
3148 "Could not transform string tag to " "%s tag type %s",
3149 gst_tag_name, g_type_name (tag_type));
3150 g_value_unset (&tag_value);
3152 g_value_unset (&from_val);
3157 GST_DEBUG ("Setting metadata");
3158 g_value_init (&tag_value, G_TYPE_STRING);
3159 g_value_set_string (&tag_value, value_utf8);
3160 /* If we found a stereoscopic marker, look for StereoscopicLayout
3164 if (strncmp ("StereoscopicLayout", name_utf8,
3165 strlen (name_utf8)) == 0) {
3166 for (i = 0; i < G_N_ELEMENTS (stereoscopic_layout_map); i++) {
3167 if (g_str_equal (stereoscopic_layout_map[i].interleave_name,
3169 demux->asf_3D_mode =
3170 stereoscopic_layout_map[i].interleaving_type;
3171 GST_INFO ("find interleave type %u", demux->asf_3D_mode);
3175 GST_INFO_OBJECT (demux, "3d type is %u", demux->asf_3D_mode);
3177 demux->asf_3D_mode = GST_ASF_3D_NONE;
3178 GST_INFO_OBJECT (demux, "None 3d type");
3181 } else if (value_utf8 == NULL) {
3182 GST_WARNING ("Failed to convert string value to UTF8, skipping");
3184 GST_DEBUG ("Skipping empty string value for %s",
3185 GST_STR_NULL (gst_tag_name));
3187 g_free (value_utf8);
3190 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
3192 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
3193 GST_FIXME ("Unhandled byte array tag %s",
3194 GST_STR_NULL (gst_tag_name));
3197 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
3203 case ASF_DEMUX_DATA_TYPE_DWORD:{
3204 guint uint_val = GST_READ_UINT32_LE (value);
3206 /* this is the track number */
3207 g_value_init (&tag_value, G_TYPE_UINT);
3209 /* WM/Track counts from 0 */
3210 if (!strcmp (name_utf8, "WM/Track"))
3213 g_value_set_uint (&tag_value, uint_val);
3217 case ASF_DEMUX_DATA_TYPE_BOOL:{
3218 gboolean bool_val = GST_READ_UINT32_LE (value);
3220 if (strncmp ("Stereoscopic", name_utf8, strlen (name_utf8)) == 0) {
3222 GST_INFO_OBJECT (demux, "This is 3D contents");
3225 GST_INFO_OBJECT (demux, "This is not 3D contenst");
3233 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
3238 if (G_IS_VALUE (&tag_value)) {
3240 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
3242 /* WM/TrackNumber is more reliable than WM/Track, since the latter
3243 * is supposed to have a 0 base but is often wrongly written to start
3244 * from 1 as well, so prefer WM/TrackNumber when we have it: either
3245 * replace the value added earlier from WM/Track or put it first in
3246 * the list, so that it will get picked up by _get_uint() */
3247 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
3248 merge_mode = GST_TAG_MERGE_REPLACE;
3250 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
3253 GST_DEBUG ("Setting global metadata %s", name_utf8);
3254 gst_structure_set_value (demux->global_metadata, name_utf8,
3258 g_value_unset (&tag_value);
3267 gst_asf_demux_add_global_tags (demux, taglist);
3274 GST_WARNING ("Unexpected end of data parsing ext content desc object");
3275 gst_tag_list_unref (taglist);
3276 return GST_FLOW_OK; /* not really fatal */
3280 static GstStructure *
3281 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
3286 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
3288 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
3291 s = gst_caps_get_structure (demux->metadata, i);
3292 if (gst_structure_has_name (s, sname))
3296 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
3298 /* try lookup again; demux->metadata took ownership of the structure, so we
3299 * can't really make any assumptions about what happened to it, so we can't
3300 * just return it directly after appending it */
3301 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3304 static GstFlowReturn
3305 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
3308 guint16 blockcount, i;
3310 GST_INFO_OBJECT (demux, "object is a metadata object");
3312 /* Content Descriptor Count */
3314 goto not_enough_data;
3316 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3318 for (i = 0; i < blockcount; ++i) {
3320 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
3321 guint32 data_len, ival;
3324 if (size < (2 + 2 + 2 + 2 + 4))
3325 goto not_enough_data;
3327 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3328 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3329 name_len = gst_asf_demux_get_uint16 (&data, &size);
3330 data_type = gst_asf_demux_get_uint16 (&data, &size);
3331 data_len = gst_asf_demux_get_uint32 (&data, &size);
3333 if (size < name_len + data_len)
3334 goto not_enough_data;
3336 /* convert name to UTF-8 */
3337 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
3339 gst_asf_demux_skip_bytes (name_len, &data, &size);
3341 if (name_utf8 == NULL) {
3342 GST_WARNING ("Failed to convert value name to UTF8, skipping");
3343 gst_asf_demux_skip_bytes (data_len, &data, &size);
3347 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
3348 gst_asf_demux_skip_bytes (data_len, &data, &size);
3356 goto not_enough_data;
3359 ival = gst_asf_demux_get_uint32 (&data, &size);
3361 /* skip anything else there may be, just in case */
3362 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
3364 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3365 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
3369 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
3375 GST_WARNING ("Unexpected end of data parsing metadata object");
3376 return GST_FLOW_OK; /* not really fatal */
3380 static GstFlowReturn
3381 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
3383 GstFlowReturn ret = GST_FLOW_OK;
3384 guint32 i, num_objects;
3385 guint8 unknown G_GNUC_UNUSED;
3387 /* Get the rest of the header's header */
3388 if (size < (4 + 1 + 1))
3389 goto not_enough_data;
3391 num_objects = gst_asf_demux_get_uint32 (&data, &size);
3392 unknown = gst_asf_demux_get_uint8 (&data, &size);
3393 unknown = gst_asf_demux_get_uint8 (&data, &size);
3395 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
3397 /* Loop through the header's objects, processing those */
3398 for (i = 0; i < num_objects; ++i) {
3399 GST_INFO_OBJECT (demux, "reading header part %u", i);
3400 ret = gst_asf_demux_process_object (demux, &data, &size);
3401 if (ret != GST_FLOW_OK) {
3402 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
3411 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3412 ("short read parsing HEADER object"));
3413 return GST_FLOW_ERROR;
3417 static GstFlowReturn
3418 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
3420 guint64 creation_time G_GNUC_UNUSED;
3421 guint64 file_size G_GNUC_UNUSED;
3422 guint64 send_time G_GNUC_UNUSED;
3423 guint64 packets_count, play_time, preroll;
3424 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
3426 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
3427 goto not_enough_data;
3429 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
3430 file_size = gst_asf_demux_get_uint64 (&data, &size);
3431 creation_time = gst_asf_demux_get_uint64 (&data, &size);
3432 packets_count = gst_asf_demux_get_uint64 (&data, &size);
3433 play_time = gst_asf_demux_get_uint64 (&data, &size);
3434 send_time = gst_asf_demux_get_uint64 (&data, &size);
3435 preroll = gst_asf_demux_get_uint64 (&data, &size);
3436 flags = gst_asf_demux_get_uint32 (&data, &size);
3437 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3438 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3439 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3441 demux->broadcast = ! !(flags & 0x01);
3442 demux->seekable = ! !(flags & 0x02);
3444 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3445 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3446 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3448 if (demux->broadcast) {
3449 /* these fields are invalid if the broadcast flag is set */
3454 if (min_pktsize != max_pktsize)
3455 goto non_fixed_packet_size;
3457 demux->packet_size = max_pktsize;
3459 /* FIXME: do we need send_time as well? what is it? */
3460 if ((play_time * 100) >= (preroll * GST_MSECOND))
3461 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3463 demux->play_time = 0;
3465 demux->preroll = preroll * GST_MSECOND;
3467 /* initial latency */
3468 demux->latency = demux->preroll;
3470 if (demux->play_time == 0)
3471 demux->seekable = FALSE;
3473 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3474 GST_TIME_ARGS (demux->play_time));
3475 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3476 GST_TIME_ARGS (demux->preroll));
3478 if (demux->play_time > 0) {
3479 demux->segment.duration = demux->play_time;
3482 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3484 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3489 non_fixed_packet_size:
3491 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3492 ("packet size must be fixed"));
3493 return GST_FLOW_ERROR;
3497 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3498 ("short read parsing FILE object"));
3499 return GST_FLOW_ERROR;
3503 /* Content Description Object */
3504 static GstFlowReturn
3505 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3509 const gchar *gst_tag;
3514 GST_TAG_TITLE, 0, NULL}, {
3515 GST_TAG_ARTIST, 0, NULL}, {
3516 GST_TAG_COPYRIGHT, 0, NULL}, {
3517 GST_TAG_DESCRIPTION, 0, NULL}, {
3518 GST_TAG_COMMENT, 0, NULL}
3520 GstTagList *taglist;
3521 GValue value = { 0 };
3525 GST_INFO_OBJECT (demux, "object is a comment");
3527 if (size < (2 + 2 + 2 + 2 + 2))
3528 goto not_enough_data;
3530 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3531 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3532 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3533 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3534 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3536 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3537 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3538 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3540 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3541 if (size < tags[i].val_length)
3542 goto not_enough_data;
3544 /* might be just '/0', '/0'... */
3545 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3546 /* convert to UTF-8 */
3547 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3548 "UTF-8", "UTF-16LE", &in, &out, NULL);
3550 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3553 /* parse metadata into taglist */
3554 taglist = gst_tag_list_new_empty ();
3555 g_value_init (&value, G_TYPE_STRING);
3556 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3557 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3558 g_value_set_string (&value, tags[i].val_utf8);
3559 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3560 tags[i].gst_tag, &value, NULL);
3563 g_value_unset (&value);
3565 gst_asf_demux_add_global_tags (demux, taglist);
3567 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3568 g_free (tags[i].val_utf8);
3574 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3575 "comment tag section %d, skipping comment object", i);
3576 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3577 g_free (tags[i].val_utf8);
3578 return GST_FLOW_OK; /* not really fatal */
3582 static GstFlowReturn
3583 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3586 guint16 num_streams, i;
3590 goto not_enough_data;
3592 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3594 GST_INFO ("object is a bitrate properties object with %u streams",
3597 if (size < (num_streams * (2 + 4)))
3598 goto not_enough_data;
3600 for (i = 0; i < num_streams; ++i) {
3604 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3605 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3607 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3608 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3609 stream = gst_asf_demux_get_stream (demux, stream_id);
3611 if (stream->pending_tags == NULL) {
3612 stream->pending_tags =
3613 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3616 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3619 GST_WARNING ("stream id %u is too large", stream_id);
3627 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3628 return GST_FLOW_OK; /* not really fatal */
3632 static GstFlowReturn
3633 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3636 GstFlowReturn ret = GST_FLOW_OK;
3639 /* Get the rest of the header's header */
3640 if (size < (16 + 2 + 4))
3641 goto not_enough_data;
3643 /* skip GUID and two other bytes */
3644 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3645 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3647 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3649 /* FIXME: does data_size include the rest of the header that we have read? */
3650 if (hdr_size > size)
3651 goto not_enough_data;
3653 while (hdr_size > 0) {
3654 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3655 if (ret != GST_FLOW_OK)
3663 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3664 ("short read parsing extended header object"));
3665 return GST_FLOW_ERROR;
3669 static GstFlowReturn
3670 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3676 goto not_enough_data;
3678 if (demux->languages) {
3679 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3680 g_strfreev (demux->languages);
3681 demux->languages = NULL;
3682 demux->num_languages = 0;
3685 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3686 GST_LOG ("%u languages:", demux->num_languages);
3688 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3689 for (i = 0; i < demux->num_languages; ++i) {
3690 guint8 len, *lang_data = NULL;
3693 goto not_enough_data;
3694 len = gst_asf_demux_get_uint8 (&data, &size);
3695 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3698 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3701 /* truncate "en-us" etc. to just "en" */
3702 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3705 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3706 demux->languages[i] = utf8;
3709 goto not_enough_data;
3717 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3718 g_free (demux->languages);
3719 demux->languages = NULL;
3720 return GST_FLOW_OK; /* not fatal */
3724 static GstFlowReturn
3725 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3728 GstClockTime interval;
3731 if (size < (16 + 8 + 4 + 4))
3732 goto not_enough_data;
3735 gst_asf_demux_skip_bytes (16, &data, &size);
3736 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3737 gst_asf_demux_skip_bytes (4, &data, &size);
3738 count = gst_asf_demux_get_uint32 (&data, &size);
3740 demux->sidx_interval = interval;
3741 demux->sidx_num_entries = count;
3742 g_free (demux->sidx_entries);
3743 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3745 for (i = 0; i < count; ++i) {
3746 if (G_UNLIKELY (size < 6)) {
3747 /* adjust for broken files, to avoid having entries at the end
3748 * of the parsed index that point to time=0. Resulting in seeking to
3749 * the end of the file leading back to the beginning */
3750 demux->sidx_num_entries -= (count - i);
3753 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3754 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3755 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3756 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3757 demux->sidx_entries[i].count);
3760 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3767 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3768 return GST_FLOW_OK; /* not fatal */
3772 static GstFlowReturn
3773 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3774 guint8 * data, guint64 size)
3779 if (size < 16 + 2 + (2 * 2))
3780 goto not_enough_data;
3782 gst_asf_demux_get_guid (&guid, &data, &size);
3783 num = gst_asf_demux_get_uint16 (&data, &size);
3786 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3790 if (size < (num * sizeof (guint16)))
3791 goto not_enough_data;
3793 /* read mutually exclusive stream numbers */
3794 for (i = 0; i < num; ++i) {
3796 mes = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3797 GST_LOG_OBJECT (demux, "mutually exclusive: stream %d", mes);
3799 demux->mut_ex_streams =
3800 g_slist_append (demux->mut_ex_streams, GINT_TO_POINTER (mes));
3809 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3810 return GST_FLOW_OK; /* not absolutely fatal */
3815 gst_asf_demux_is_unknown_stream (GstASFDemux * demux, guint stream_num)
3817 return g_slist_find (demux->other_streams,
3818 GINT_TO_POINTER (stream_num)) == NULL;
3821 static GstFlowReturn
3822 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3825 AsfStreamExtProps esp;
3826 AsfStream *stream = NULL;
3827 AsfObject stream_obj;
3828 guint16 stream_name_count;
3829 guint16 num_payload_ext;
3831 guint8 *stream_obj_data = NULL;
3834 guint i, stream_num;
3837 obj_size = (guint) size;
3840 goto not_enough_data;
3843 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3844 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3845 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3846 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3847 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3848 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3849 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3850 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3851 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3852 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3853 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3854 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3855 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3856 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3857 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3859 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3860 GST_TIME_ARGS (esp.start_time));
3861 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3862 GST_TIME_ARGS (esp.end_time));
3863 GST_INFO ("flags = %08x", esp.flags);
3864 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3865 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3866 GST_INFO ("stream number = %u", stream_num);
3867 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3868 (esp.lang_idx < demux->num_languages) ?
3869 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3870 GST_INFO ("stream name count = %u", stream_name_count);
3872 /* read stream names */
3873 for (i = 0; i < stream_name_count; ++i) {
3874 guint16 stream_lang_idx G_GNUC_UNUSED;
3875 gchar *stream_name = NULL;
3878 goto not_enough_data;
3879 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3880 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3881 goto not_enough_data;
3882 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3883 g_free (stream_name); /* TODO: store names in struct */
3886 /* read payload extension systems stuff */
3887 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3889 if (num_payload_ext > 0)
3890 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3892 esp.payload_extensions = NULL;
3894 for (i = 0; i < num_payload_ext; ++i) {
3895 AsfPayloadExtension ext;
3897 guint32 sys_info_len;
3899 if (size < 16 + 2 + 4)
3900 goto not_enough_data;
3902 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3903 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3904 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3906 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3907 GST_LOG ("payload systems info len = %u", sys_info_len);
3908 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3909 goto not_enough_data;
3911 esp.payload_extensions[i] = ext;
3914 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3916 /* there might be an optional STREAM_INFO object here now; if not, we
3917 * should have parsed the corresponding stream info object already (since
3918 * we are parsing the extended stream properties objects delayed) */
3920 stream = gst_asf_demux_get_stream (demux, stream_num);
3924 /* get size of the stream object */
3925 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3926 goto not_enough_data;
3928 if (stream_obj.id != ASF_OBJ_STREAM)
3929 goto expected_stream_object;
3931 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3932 stream_obj.size > (10 * 1024 * 1024))
3933 goto not_enough_data;
3935 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3937 /* process this stream object later after all the other 'normal' ones
3938 * have been processed (since the others are more important/non-hidden) */
3939 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3940 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3941 goto not_enough_data;
3943 /* parse stream object */
3944 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3945 g_free (stream_obj_data);
3950 stream->ext_props = esp;
3952 /* try to set the framerate */
3953 if (stream->is_video && stream->caps) {
3954 GValue framerate = { 0 };
3958 g_value_init (&framerate, GST_TYPE_FRACTION);
3960 num = GST_SECOND / 100;
3961 denom = esp.avg_time_per_frame;
3963 /* avoid division by 0, assume 25/1 framerate */
3964 denom = GST_SECOND / 2500;
3967 gst_value_set_fraction (&framerate, num, denom);
3969 stream->caps = gst_caps_make_writable (stream->caps);
3970 s = gst_caps_get_structure (stream->caps, 0);
3971 gst_structure_set_value (s, "framerate", &framerate);
3972 g_value_unset (&framerate);
3973 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3974 num, denom, ((gdouble) num) / denom);
3977 /* add language info now if we have it */
3978 if (stream->ext_props.lang_idx < demux->num_languages) {
3979 if (stream->pending_tags == NULL)
3980 stream->pending_tags = gst_tag_list_new_empty ();
3981 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3982 demux->languages[stream->ext_props.lang_idx]);
3983 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3984 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
3987 } else if (gst_asf_demux_is_unknown_stream (demux, stream_num)) {
3988 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
3996 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
3997 return GST_FLOW_OK; /* not absolutely fatal */
3999 expected_stream_object:
4001 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
4002 "object: expected embedded stream object, but got %s object instead!",
4003 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
4004 return GST_FLOW_OK; /* not absolutely fatal */
4008 static const gchar *
4009 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
4013 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
4014 if (g_str_has_prefix (nick, "ASF_OBJ_"))
4015 nick += strlen ("ASF_OBJ_");
4017 if (demux->objpath == NULL) {
4018 demux->objpath = g_strdup (nick);
4022 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
4023 g_free (demux->objpath);
4024 demux->objpath = newpath;
4027 return (const gchar *) demux->objpath;
4031 gst_asf_demux_pop_obj (GstASFDemux * demux)
4035 if ((s = g_strrstr (demux->objpath, "/"))) {
4038 g_free (demux->objpath);
4039 demux->objpath = NULL;
4044 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
4049 /* Parse the queued extended stream property objects and add the info
4050 * to the existing streams or add the new embedded streams, but without
4051 * activating them yet */
4052 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
4053 g_slist_length (demux->ext_stream_props));
4055 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
4056 GstBuffer *buf = GST_BUFFER (l->data);
4059 gst_buffer_map (buf, &map, GST_MAP_READ);
4061 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
4062 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
4063 gst_buffer_unmap (buf, &map);
4064 gst_buffer_unref (buf);
4066 g_slist_free (demux->ext_stream_props);
4067 demux->ext_stream_props = NULL;
4072 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
4076 for (i = 0; i < demux->num_streams; ++i) {
4081 stream = &demux->stream[i];
4083 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
4085 if (stream->active) {
4086 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
4091 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
4094 /* check for each mutual exclusion whether it affects this stream */
4095 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4096 if (*mes == stream->id) {
4097 /* if yes, check if we've already added streams that are mutually
4098 * exclusive with the stream we're about to add */
4099 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4100 for (j = 0; j < demux->num_streams; ++j) {
4101 /* if the broadcast flag is set, assume the hidden streams aren't
4102 * actually streamed and hide them (or playbin won't work right),
4103 * otherwise assume their data is available */
4104 if (demux->stream[j].id == *mes && demux->broadcast) {
4106 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
4107 "mutually exclusive with already existing stream ID %d, "
4108 "hiding stream", stream->id, demux->stream[j].id);
4120 /* FIXME: we should do stream activation based on preroll data in
4121 * streaming mode too */
4122 if (demux->streaming && !is_hidden)
4123 gst_asf_demux_activate_stream (demux, stream);
4128 static GstFlowReturn
4129 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
4132 GstFlowReturn ret = GST_FLOW_OK;
4134 guint64 obj_data_size;
4136 if (*p_size < ASF_OBJECT_HEADER_SIZE)
4137 return ASF_FLOW_NEED_MORE_DATA;
4139 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
4140 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
4142 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
4144 if (*p_size < obj_data_size)
4145 return ASF_FLOW_NEED_MORE_DATA;
4147 gst_asf_demux_push_obj (demux, obj.id);
4149 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
4152 case ASF_OBJ_STREAM:
4153 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
4157 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
4159 case ASF_OBJ_HEADER:
4160 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
4162 case ASF_OBJ_COMMENT:
4163 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
4166 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
4168 case ASF_OBJ_BITRATE_PROPS:
4170 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
4173 case ASF_OBJ_EXT_CONTENT_DESC:
4175 gst_asf_demux_process_ext_content_desc (demux, *p_data,
4178 case ASF_OBJ_METADATA_OBJECT:
4179 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
4181 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
4184 /* process these later, we might not have parsed the corresponding
4185 * stream object yet */
4186 GST_LOG ("%s: queued for later parsing", demux->objpath);
4187 buf = gst_buffer_new_and_alloc (obj_data_size);
4188 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
4189 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
4193 case ASF_OBJ_LANGUAGE_LIST:
4194 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
4196 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
4197 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
4200 case ASF_OBJ_SIMPLE_INDEX:
4201 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
4203 case ASF_OBJ_CONTENT_ENCRYPTION:
4204 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
4205 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
4206 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
4207 goto error_encrypted;
4208 case ASF_OBJ_CONCEAL_NONE:
4210 case ASF_OBJ_UNDEFINED:
4211 case ASF_OBJ_CODEC_COMMENT:
4213 case ASF_OBJ_PADDING:
4214 case ASF_OBJ_BITRATE_MUTEX:
4215 case ASF_OBJ_COMPATIBILITY:
4216 case ASF_OBJ_INDEX_PLACEHOLDER:
4217 case ASF_OBJ_INDEX_PARAMETERS:
4218 case ASF_OBJ_STREAM_PRIORITIZATION:
4219 case ASF_OBJ_SCRIPT_COMMAND:
4220 case ASF_OBJ_METADATA_LIBRARY_OBJECT:
4222 /* Unknown/unhandled object, skip it and hope for the best */
4223 GST_INFO ("%s: skipping object", demux->objpath);
4228 /* this can't fail, we checked the number of bytes available before */
4229 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
4231 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
4233 gst_asf_demux_pop_obj (demux);
4240 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
4241 return GST_FLOW_ERROR;
4246 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
4247 GstBuffer ** p_buffer)
4249 GstBuffer *descrambled_buffer;
4250 GstBuffer *scrambled_buffer;
4251 GstBuffer *sub_buffer;
4258 /* descrambled_buffer is initialised in the first iteration */
4259 descrambled_buffer = NULL;
4260 scrambled_buffer = *p_buffer;
4262 if (gst_buffer_get_size (scrambled_buffer) <
4263 stream->ds_packet_size * stream->span)
4266 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
4267 offset += stream->ds_chunk_size) {
4268 off = offset / stream->ds_chunk_size;
4269 row = off / stream->span;
4270 col = off % stream->span;
4271 idx = row + col * stream->ds_packet_size / stream->ds_chunk_size;
4272 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
4273 col, off, stream->ds_chunk_size);
4274 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
4275 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
4276 stream->span, stream->ds_packet_size);
4277 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
4278 gst_buffer_get_size (scrambled_buffer));
4280 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_MEMORY,
4281 idx * stream->ds_chunk_size, stream->ds_chunk_size);
4283 descrambled_buffer = sub_buffer;
4285 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
4289 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
4290 GST_BUFFER_TIMESTAMP (scrambled_buffer);
4291 GST_BUFFER_DURATION (descrambled_buffer) =
4292 GST_BUFFER_DURATION (scrambled_buffer);
4293 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
4294 GST_BUFFER_OFFSET_END (descrambled_buffer) =
4295 GST_BUFFER_OFFSET_END (scrambled_buffer);
4297 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
4299 gst_buffer_unref (scrambled_buffer);
4300 *p_buffer = descrambled_buffer;
4304 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
4306 GstASFDemux *demux = GST_ASF_DEMUX (element);
4309 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
4311 for (i = 0; i < demux->num_streams; ++i) {
4312 gst_event_ref (event);
4313 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
4314 GST_OBJECT_CAST (element), event)) {
4315 gst_event_unref (event);
4320 gst_event_unref (event);
4324 /* takes ownership of the passed event */
4326 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
4328 gboolean ret = TRUE;
4331 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
4332 GST_EVENT_TYPE_NAME (event));
4334 for (i = 0; i < demux->num_streams; ++i) {
4335 gst_event_ref (event);
4336 ret &= gst_pad_push_event (demux->stream[i].pad, event);
4338 gst_event_unref (event);
4343 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
4347 gboolean res = FALSE;
4349 demux = GST_ASF_DEMUX (parent);
4351 GST_DEBUG ("handling %s query",
4352 gst_query_type_get_name (GST_QUERY_TYPE (query)));
4354 switch (GST_QUERY_TYPE (query)) {
4355 case GST_QUERY_DURATION:
4359 gst_query_parse_duration (query, &format, NULL);
4361 if (format != GST_FORMAT_TIME) {
4362 GST_LOG ("only support duration queries in TIME format");
4366 res = gst_pad_query_default (pad, parent, query);
4368 GST_OBJECT_LOCK (demux);
4370 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
4371 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
4372 GST_TIME_ARGS (demux->segment.duration));
4374 gst_query_set_duration (query, GST_FORMAT_TIME,
4375 demux->segment.duration);
4379 GST_LOG ("duration not known yet");
4382 GST_OBJECT_UNLOCK (demux);
4387 case GST_QUERY_POSITION:{
4390 gst_query_parse_position (query, &format, NULL);
4392 if (format != GST_FORMAT_TIME) {
4393 GST_LOG ("only support position queries in TIME format");
4397 GST_OBJECT_LOCK (demux);
4399 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
4400 GST_LOG ("returning position: %" GST_TIME_FORMAT,
4401 GST_TIME_ARGS (demux->segment.position));
4403 gst_query_set_position (query, GST_FORMAT_TIME,
4404 demux->segment.position);
4408 GST_LOG ("position not known yet");
4411 GST_OBJECT_UNLOCK (demux);
4415 case GST_QUERY_SEEKING:{
4418 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
4419 if (format == GST_FORMAT_TIME) {
4422 GST_OBJECT_LOCK (demux);
4423 duration = demux->segment.duration;
4424 GST_OBJECT_UNLOCK (demux);
4426 if (!demux->streaming || !demux->seekable) {
4427 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
4434 /* try upstream first in TIME */
4435 res = gst_pad_query_default (pad, parent, query);
4437 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
4438 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4439 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4440 /* if no luck, maybe in BYTES */
4441 if (!seekable || fmt != GST_FORMAT_TIME) {
4444 q = gst_query_new_seeking (GST_FORMAT_BYTES);
4445 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
4446 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
4447 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4448 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4449 if (fmt != GST_FORMAT_BYTES)
4452 gst_query_unref (q);
4453 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4459 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4463 case GST_QUERY_LATENCY:
4466 GstClockTime min, max;
4468 /* preroll delay does not matter in non-live pipeline,
4469 * but we might end up in a live (rtsp) one ... */
4472 res = gst_pad_query_default (pad, parent, query);
4476 gst_query_parse_latency (query, &live, &min, &max);
4478 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4479 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4480 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4482 GST_OBJECT_LOCK (demux);
4483 min += demux->latency;
4485 max += demux->latency;
4486 GST_OBJECT_UNLOCK (demux);
4488 gst_query_set_latency (query, live, min, max);
4491 case GST_QUERY_SEGMENT:
4496 format = demux->segment.format;
4499 gst_segment_to_stream_time (&demux->segment, format,
4500 demux->segment.start);
4501 if ((stop = demux->segment.stop) == -1)
4502 stop = demux->segment.duration;
4504 stop = gst_segment_to_stream_time (&demux->segment, format, stop);
4506 gst_query_set_segment (query, demux->segment.rate, format, start, stop);
4511 res = gst_pad_query_default (pad, parent, query);
4518 static GstStateChangeReturn
4519 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4521 GstASFDemux *demux = GST_ASF_DEMUX (element);
4522 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4524 switch (transition) {
4525 case GST_STATE_CHANGE_NULL_TO_READY:{
4526 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4527 demux->need_newsegment = TRUE;
4528 demux->segment_running = FALSE;
4529 demux->accurate = FALSE;
4530 demux->adapter = gst_adapter_new ();
4531 demux->metadata = gst_caps_new_empty ();
4532 demux->global_metadata = gst_structure_new_empty ("metadata");
4533 demux->data_size = 0;
4534 demux->data_offset = 0;
4535 demux->index_offset = 0;
4536 demux->base_offset = 0;
4537 demux->flowcombiner = gst_flow_combiner_new ();
4544 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4545 if (ret == GST_STATE_CHANGE_FAILURE)
4548 switch (transition) {
4549 case GST_STATE_CHANGE_PAUSED_TO_READY:
4550 gst_asf_demux_reset (demux, FALSE);
4553 case GST_STATE_CHANGE_READY_TO_NULL:
4554 gst_asf_demux_reset (demux, FALSE);
4555 gst_flow_combiner_free (demux->flowcombiner);
4556 demux->flowcombiner = NULL;