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 GstFlowReturn 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_static_pad_template (gstelement_class,
132 &audio_src_template);
133 gst_element_class_add_static_pad_template (gstelement_class,
134 &video_src_template);
135 gst_element_class_add_static_pad_template (gstelement_class,
136 &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;
179 if (stream->payloads_rev) {
180 while (stream->payloads_rev->len > 0) {
184 last = stream->payloads_rev->len - 1;
185 payload = &g_array_index (stream->payloads_rev, AsfPayload, last);
186 gst_buffer_replace (&payload->buf, NULL);
187 g_array_remove_index (stream->payloads_rev, last);
189 g_array_free (stream->payloads_rev, TRUE);
190 stream->payloads_rev = NULL;
193 if (stream->ext_props.valid) {
194 g_free (stream->ext_props.payload_extensions);
195 stream->ext_props.payload_extensions = NULL;
200 gst_asf_demux_reset (GstASFDemux * demux, gboolean chain_reset)
202 GST_LOG_OBJECT (demux, "resetting");
204 gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
205 demux->segment_running = FALSE;
206 if (demux->adapter && !chain_reset) {
207 gst_adapter_clear (demux->adapter);
208 g_object_unref (demux->adapter);
209 demux->adapter = NULL;
211 if (demux->taglist) {
212 gst_tag_list_unref (demux->taglist);
213 demux->taglist = NULL;
215 if (demux->metadata) {
216 gst_caps_unref (demux->metadata);
217 demux->metadata = NULL;
219 if (demux->global_metadata) {
220 gst_structure_free (demux->global_metadata);
221 demux->global_metadata = NULL;
223 if (demux->mut_ex_streams) {
224 g_slist_free (demux->mut_ex_streams);
225 demux->mut_ex_streams = NULL;
228 demux->state = GST_ASF_DEMUX_STATE_HEADER;
229 g_free (demux->objpath);
230 demux->objpath = NULL;
231 g_strfreev (demux->languages);
232 demux->languages = NULL;
233 demux->num_languages = 0;
234 g_slist_foreach (demux->ext_stream_props, (GFunc) gst_mini_object_unref,
236 g_slist_free (demux->ext_stream_props);
237 demux->ext_stream_props = NULL;
239 while (demux->old_num_streams > 0) {
240 gst_asf_demux_free_stream (demux,
241 &demux->old_stream[demux->old_num_streams - 1]);
242 --demux->old_num_streams;
244 memset (demux->old_stream, 0, sizeof (demux->old_stream));
245 demux->old_num_streams = 0;
247 /* when resetting for a new chained asf, we don't want to remove the pads
248 * before adding the new ones */
250 memcpy (demux->old_stream, demux->stream, sizeof (demux->stream));
251 demux->old_num_streams = demux->num_streams;
252 demux->num_streams = 0;
255 while (demux->num_streams > 0) {
256 gst_asf_demux_free_stream (demux, &demux->stream[demux->num_streams - 1]);
257 --demux->num_streams;
259 memset (demux->stream, 0, sizeof (demux->stream));
261 /* do not remove those for not adding pads with same name */
262 demux->num_audio_streams = 0;
263 demux->num_video_streams = 0;
264 demux->have_group_id = FALSE;
265 demux->group_id = G_MAXUINT;
267 demux->num_streams = 0;
268 demux->activated_streams = FALSE;
269 demux->first_ts = GST_CLOCK_TIME_NONE;
270 demux->segment_ts = GST_CLOCK_TIME_NONE;
273 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
274 demux->state = GST_ASF_DEMUX_STATE_HEADER;
275 demux->seekable = FALSE;
276 demux->broadcast = FALSE;
277 demux->sidx_interval = 0;
278 demux->sidx_num_entries = 0;
279 g_free (demux->sidx_entries);
280 demux->sidx_entries = NULL;
282 demux->speed_packets = 1;
284 demux->asf_3D_mode = GST_ASF_3D_NONE;
287 GST_LOG_OBJECT (demux, "Restarting");
288 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
289 demux->need_newsegment = TRUE;
290 demux->segment_seqnum = 0;
291 demux->segment_running = FALSE;
292 demux->keyunit_sync = FALSE;
293 demux->accurate = FALSE;
294 demux->metadata = gst_caps_new_empty ();
295 demux->global_metadata = gst_structure_new_empty ("metadata");
296 demux->data_size = 0;
297 demux->data_offset = 0;
298 demux->index_offset = 0;
300 demux->base_offset = 0;
303 g_slist_free (demux->other_streams);
304 demux->other_streams = NULL;
308 gst_asf_demux_init (GstASFDemux * demux)
311 gst_pad_new_from_static_template (&gst_asf_demux_sink_template, "sink");
312 gst_pad_set_chain_function (demux->sinkpad,
313 GST_DEBUG_FUNCPTR (gst_asf_demux_chain));
314 gst_pad_set_event_function (demux->sinkpad,
315 GST_DEBUG_FUNCPTR (gst_asf_demux_sink_event));
316 gst_pad_set_activate_function (demux->sinkpad,
317 GST_DEBUG_FUNCPTR (gst_asf_demux_activate));
318 gst_pad_set_activatemode_function (demux->sinkpad,
319 GST_DEBUG_FUNCPTR (gst_asf_demux_activate_mode));
320 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
322 /* set initial state */
323 gst_asf_demux_reset (demux, FALSE);
327 gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent)
332 query = gst_query_new_scheduling ();
334 if (!gst_pad_peer_query (sinkpad, query)) {
335 gst_query_unref (query);
339 pull_mode = gst_query_has_scheduling_mode_with_flags (query,
340 GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
341 gst_query_unref (query);
346 GST_DEBUG_OBJECT (sinkpad, "activating pull");
347 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
351 GST_DEBUG_OBJECT (sinkpad, "activating push");
352 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
357 gst_asf_demux_activate_mode (GstPad * sinkpad, GstObject * parent,
358 GstPadMode mode, gboolean active)
363 demux = GST_ASF_DEMUX (parent);
366 case GST_PAD_MODE_PUSH:
367 demux->state = GST_ASF_DEMUX_STATE_HEADER;
368 demux->streaming = TRUE;
371 case GST_PAD_MODE_PULL:
373 demux->state = GST_ASF_DEMUX_STATE_HEADER;
374 demux->streaming = FALSE;
376 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_asf_demux_loop,
379 res = gst_pad_stop_task (sinkpad);
390 gst_asf_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
395 demux = GST_ASF_DEMUX (parent);
397 GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
398 switch (GST_EVENT_TYPE (event)) {
399 case GST_EVENT_SEGMENT:{
400 const GstSegment *segment;
402 gst_event_parse_segment (event, &segment);
404 if (segment->format == GST_FORMAT_BYTES) {
405 if (demux->packet_size && segment->start > demux->data_offset)
406 demux->packet = (segment->start - demux->data_offset) /
410 } else if (segment->format == GST_FORMAT_TIME) {
411 /* do not know packet position, not really a problem */
414 GST_WARNING_OBJECT (demux, "unsupported newsegment format, ignoring");
415 gst_event_unref (event);
419 /* record upstream segment for interpolation */
420 if (segment->format != demux->in_segment.format)
421 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
422 gst_segment_copy_into (segment, &demux->in_segment);
424 /* in either case, clear some state and generate newsegment later on */
425 GST_OBJECT_LOCK (demux);
426 demux->segment_ts = GST_CLOCK_TIME_NONE;
427 demux->in_gap = GST_CLOCK_TIME_NONE;
428 demux->need_newsegment = TRUE;
429 demux->segment_seqnum = gst_event_get_seqnum (event);
430 gst_asf_demux_reset_stream_state_after_discont (demux);
431 /* if we seek back after reaching EOS, go back to packet reading state */
432 if (demux->data_offset > 0 && segment->start >= demux->data_offset
433 && demux->state == GST_ASF_DEMUX_STATE_INDEX) {
434 demux->state = GST_ASF_DEMUX_STATE_DATA;
436 GST_OBJECT_UNLOCK (demux);
438 gst_event_unref (event);
444 if (demux->state == GST_ASF_DEMUX_STATE_HEADER) {
445 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
446 (_("This stream contains no data.")),
447 ("got eos and didn't receive a complete header object"));
450 flow = gst_asf_demux_push_complete_payloads (demux, TRUE);
451 if (!demux->activated_streams) {
452 /* If we still haven't got activated streams, the file is most likely corrupt */
453 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE,
454 (_("This stream contains no data.")),
455 ("got eos and didn't receive a complete header object"));
458 if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
459 GST_ELEMENT_FLOW_ERROR (demux, flow);
463 GST_OBJECT_LOCK (demux);
464 gst_adapter_clear (demux->adapter);
465 GST_OBJECT_UNLOCK (demux);
466 gst_asf_demux_send_event_unlocked (demux, event);
470 case GST_EVENT_FLUSH_STOP:
471 GST_OBJECT_LOCK (demux);
472 gst_asf_demux_reset_stream_state_after_discont (demux);
473 GST_OBJECT_UNLOCK (demux);
474 gst_asf_demux_send_event_unlocked (demux, event);
475 /* upon activation, latency is no longer introduced, e.g. after seek */
476 if (demux->activated_streams)
481 ret = gst_pad_event_default (pad, parent, event);
489 gst_asf_demux_seek_index_lookup (GstASFDemux * demux, guint * packet,
490 GstClockTime seek_time, GstClockTime * p_idx_time, guint * speed,
491 gboolean next, gboolean * eos)
493 GstClockTime idx_time;
499 if (G_UNLIKELY (demux->sidx_num_entries == 0 || demux->sidx_interval == 0))
502 idx = (guint) ((seek_time + demux->preroll) / demux->sidx_interval);
505 /* if we want the next keyframe, we have to go forward till we find
506 a different packet number */
508 if (idx >= demux->sidx_num_entries - 1) {
509 /* If we get here, we're asking for next keyframe after the last one. There isn't one. */
514 for (idx2 = idx + 1; idx2 < demux->sidx_num_entries; ++idx2) {
515 if (demux->sidx_entries[idx].packet != demux->sidx_entries[idx2].packet) {
522 if (G_UNLIKELY (idx >= demux->sidx_num_entries)) {
528 *packet = demux->sidx_entries[idx].packet;
530 *speed = demux->sidx_entries[idx].count;
532 /* so we get closer to the actual time of the packet ... actually, let's not
533 * do this, since we throw away superfluous payloads before the seek position
534 * anyway; this way, our key unit seek 'snap resolution' is a bit better
535 * (ie. same as index resolution) */
537 while (idx > 0 && demux->sidx_entries[idx-1] == demux->sidx_entries[idx])
541 idx_time = demux->sidx_interval * idx;
542 if (G_LIKELY (idx_time >= demux->preroll))
543 idx_time -= demux->preroll;
545 GST_DEBUG_OBJECT (demux, "%" GST_TIME_FORMAT " => packet %u at %"
546 GST_TIME_FORMAT, GST_TIME_ARGS (seek_time), *packet,
547 GST_TIME_ARGS (idx_time));
549 if (G_LIKELY (p_idx_time))
550 *p_idx_time = idx_time;
556 gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * demux)
560 gst_adapter_clear (demux->adapter);
562 GST_DEBUG_OBJECT (demux, "reset stream state");
564 gst_flow_combiner_reset (demux->flowcombiner);
565 for (n = 0; n < demux->num_streams; n++) {
566 demux->stream[n].discont = TRUE;
567 demux->stream[n].first_buffer = TRUE;
569 while (demux->stream[n].payloads->len > 0) {
573 last = demux->stream[n].payloads->len - 1;
574 payload = &g_array_index (demux->stream[n].payloads, AsfPayload, last);
575 gst_buffer_replace (&payload->buf, NULL);
576 g_array_remove_index (demux->stream[n].payloads, last);
582 gst_asf_demux_mark_discont (GstASFDemux * demux)
586 GST_DEBUG_OBJECT (demux, "Mark stream discont");
588 for (n = 0; n < demux->num_streams; n++)
589 demux->stream[n].discont = TRUE;
592 /* do a seek in push based mode */
594 gst_asf_demux_handle_seek_push (GstASFDemux * demux, GstEvent * event)
599 GstSeekType cur_type, stop_type;
603 GstEvent *byte_event;
605 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
608 stop_type = GST_SEEK_TYPE_NONE;
611 GST_DEBUG_OBJECT (demux, "seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (cur));
613 /* determine packet, by index or by estimation */
614 if (!gst_asf_demux_seek_index_lookup (demux, &packet, cur, NULL, NULL, FALSE,
617 (guint) gst_util_uint64_scale (demux->num_packets, cur,
621 if (packet > demux->num_packets) {
622 GST_DEBUG_OBJECT (demux, "could not determine packet to seek to, "
627 GST_DEBUG_OBJECT (demux, "seeking to packet %d", packet);
629 cur = demux->data_offset + ((guint64) packet * demux->packet_size);
631 GST_DEBUG_OBJECT (demux, "Pushing BYTE seek rate %g, "
632 "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT, rate, cur, stop);
633 /* BYTE seek event */
634 byte_event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type,
635 cur, stop_type, stop);
636 gst_event_set_seqnum (byte_event, gst_event_get_seqnum (event));
637 res = gst_pad_push_event (demux->sinkpad, byte_event);
643 gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
645 GstClockTime idx_time;
648 GstSeekType cur_type, stop_type;
650 gboolean only_need_update;
651 gboolean after, before, next;
656 guint packet, speed_count = 1;
662 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
665 if (G_UNLIKELY (format != GST_FORMAT_TIME)) {
666 GST_LOG_OBJECT (demux, "seeking is only supported in TIME format");
670 /* upstream might handle TIME seek, e.g. mms or rtsp, or not, e.g. http,
671 * so first try to let it handle the seek event. */
672 if (gst_pad_push_event (demux->sinkpad, gst_event_ref (event)))
675 if (G_UNLIKELY (demux->seekable == FALSE || demux->packet_size == 0 ||
676 demux->num_packets == 0 || demux->play_time == 0)) {
677 GST_LOG_OBJECT (demux, "stream is not seekable");
681 if (G_UNLIKELY (!demux->activated_streams)) {
682 GST_LOG_OBJECT (demux, "streams not yet activated, ignoring seek");
686 if (G_UNLIKELY (rate <= 0.0)) {
687 GST_LOG_OBJECT (demux, "backward playback");
688 demux->seek_to_cur_pos = TRUE;
689 for (i = 0; i < demux->num_streams; i++) {
690 demux->stream[i].reverse_kf_ready = FALSE;
694 seqnum = gst_event_get_seqnum (event);
695 flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
697 ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
698 demux->keyunit_sync =
699 ((flags & GST_SEEK_FLAG_KEY_UNIT) == GST_SEEK_FLAG_KEY_UNIT);
700 after = ((flags & GST_SEEK_FLAG_SNAP_AFTER) == GST_SEEK_FLAG_SNAP_AFTER);
701 before = ((flags & GST_SEEK_FLAG_SNAP_BEFORE) == GST_SEEK_FLAG_SNAP_BEFORE);
702 next = after && !before;
704 if (G_UNLIKELY (demux->streaming)) {
705 /* support it safely needs more segment handling, e.g. closing etc */
707 GST_LOG_OBJECT (demux, "streaming; non-flushing seek not supported");
710 /* we can (re)construct the start later on, but not the end */
711 if (stop_type != GST_SEEK_TYPE_NONE &&
712 (stop_type != GST_SEEK_TYPE_SET || GST_CLOCK_TIME_IS_VALID (stop))) {
713 GST_LOG_OBJECT (demux, "streaming; end position must be NONE");
716 return gst_asf_demux_handle_seek_push (demux, event);
719 /* unlock the streaming thread */
720 if (G_LIKELY (flush)) {
721 fevent = gst_event_new_flush_start ();
723 gst_event_set_seqnum (fevent, seqnum);
724 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
725 gst_asf_demux_send_event_unlocked (demux, fevent);
727 gst_pad_pause_task (demux->sinkpad);
730 /* grab the stream lock so that streaming cannot continue, for
731 * non flushing seeks when the element is in PAUSED this could block
733 GST_PAD_STREAM_LOCK (demux->sinkpad);
735 /* we now can stop flushing, since we have the stream lock now */
736 fevent = gst_event_new_flush_stop (TRUE);
737 gst_event_set_seqnum (fevent, seqnum);
738 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
740 if (G_LIKELY (flush))
741 gst_asf_demux_send_event_unlocked (demux, fevent);
743 gst_event_unref (fevent);
745 /* operating on copy of segment until we know the seek worked */
746 segment = demux->segment;
748 if (G_UNLIKELY (demux->segment_running && !flush)) {
749 GstSegment newsegment;
752 /* create the segment event to close the current segment */
753 gst_segment_copy_into (&segment, &newsegment);
754 newseg = gst_event_new_segment (&newsegment);
755 gst_event_set_seqnum (newseg, seqnum);
757 gst_asf_demux_send_event_unlocked (demux, newseg);
760 gst_segment_do_seek (&segment, rate, format, flags, cur_type,
761 cur, stop_type, stop, &only_need_update);
763 GST_DEBUG_OBJECT (demux, "seeking to time %" GST_TIME_FORMAT ", segment: "
764 "%" GST_SEGMENT_FORMAT, GST_TIME_ARGS (segment.start), &segment);
766 if (cur_type != GST_SEEK_TYPE_SET)
767 seek_time = segment.start;
771 /* FIXME: should check the KEY_UNIT flag; need to adjust position to
772 * real start of data and segment_start to indexed time for key unit seek*/
773 if (G_UNLIKELY (!gst_asf_demux_seek_index_lookup (demux, &packet, seek_time,
774 &idx_time, &speed_count, next, &eos))) {
778 demux->packet = demux->num_packets;
782 /* First try to query our source to see if it can convert for us. This is
783 the case when our source is an mms stream, notice that in this case
784 gstmms will do a time based seek to get the byte offset, this is not a
785 problem as the seek to this offset needs to happen anway. */
786 if (gst_pad_peer_query_convert (demux->sinkpad, GST_FORMAT_TIME, seek_time,
787 GST_FORMAT_BYTES, &offset)) {
788 packet = (offset - demux->data_offset) / demux->packet_size;
789 GST_LOG_OBJECT (demux, "convert %" GST_TIME_FORMAT
790 " to bytes query result: %" G_GINT64_FORMAT ", data_ofset: %"
791 G_GINT64_FORMAT ", packet_size: %u," " resulting packet: %u\n",
792 GST_TIME_ARGS (seek_time), offset, demux->data_offset,
793 demux->packet_size, packet);
795 /* FIXME: For streams containing video, seek to an earlier position in
796 * the hope of hitting a keyframe and let the sinks throw away the stuff
797 * before the segment start. For audio-only this is unnecessary as every
799 if (flush && (demux->accurate || (demux->keyunit_sync && !next))
800 && demux->num_video_streams > 0) {
801 seek_time -= 5 * GST_SECOND;
806 packet = (guint) gst_util_uint64_scale (demux->num_packets,
807 seek_time, demux->play_time);
809 if (packet > demux->num_packets)
810 packet = demux->num_packets;
813 if (G_LIKELY (demux->keyunit_sync && !demux->accurate)) {
814 GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
815 GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
816 GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
817 segment.start = idx_time;
818 segment.position = idx_time;
819 segment.time = idx_time;
823 GST_DEBUG_OBJECT (demux, "seeking to packet %u (%d)", packet, speed_count);
825 GST_OBJECT_LOCK (demux);
826 demux->segment = segment;
827 if (GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment)) {
828 demux->packet = (gint64) gst_util_uint64_scale (demux->num_packets,
829 stop, demux->play_time);
831 demux->packet = packet;
834 demux->need_newsegment = TRUE;
835 demux->segment_seqnum = seqnum;
836 demux->speed_packets =
837 GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment) ? 1 : speed_count;
838 gst_asf_demux_reset_stream_state_after_discont (demux);
839 GST_OBJECT_UNLOCK (demux);
842 /* restart our task since it might have been stopped when we did the flush */
843 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_asf_demux_loop,
846 /* streaming can continue now */
847 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
853 gst_asf_demux_handle_src_event (GstPad * pad, GstObject * parent,
859 demux = GST_ASF_DEMUX (parent);
861 switch (GST_EVENT_TYPE (event)) {
863 GST_LOG_OBJECT (pad, "seek event");
864 ret = gst_asf_demux_handle_seek_event (demux, event);
865 gst_event_unref (event);
868 case GST_EVENT_NAVIGATION:
869 /* just drop these two silently */
870 gst_event_unref (event);
874 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
875 ret = gst_pad_event_default (pad, parent, event);
882 static inline guint32
883 gst_asf_demux_identify_guid (const ASFGuidHash * guids, ASFGuid * guid)
887 ret = gst_asf_identify_guid (guids, guid);
889 GST_LOG ("%s 0x%08x-0x%08x-0x%08x-0x%08x",
890 gst_asf_get_guid_nick (guids, ret),
891 guid->v1, guid->v2, guid->v3, guid->v4);
903 /* Peek for an object.
905 * Returns FALSE is the object is corrupted (such as the reported
906 * object size being greater than 2**32bits.
909 asf_demux_peek_object (GstASFDemux * demux, const guint8 * data,
910 guint data_len, AsfObject * object, gboolean expect)
914 /* Callers should have made sure that data_len is big enough */
915 g_assert (data_len >= ASF_OBJECT_HEADER_SIZE);
917 if (data_len < ASF_OBJECT_HEADER_SIZE)
920 guid.v1 = GST_READ_UINT32_LE (data + 0);
921 guid.v2 = GST_READ_UINT32_LE (data + 4);
922 guid.v3 = GST_READ_UINT32_LE (data + 8);
923 guid.v4 = GST_READ_UINT32_LE (data + 12);
925 /* FIXME: make asf_demux_identify_object_guid() */
926 object->id = gst_asf_demux_identify_guid (asf_object_guids, &guid);
927 if (object->id == ASF_OBJ_UNDEFINED && expect) {
928 GST_WARNING_OBJECT (demux, "Unknown object %08x-%08x-%08x-%08x",
929 guid.v1, guid.v2, guid.v3, guid.v4);
932 object->size = GST_READ_UINT64_LE (data + 16);
933 if (object->id != ASF_OBJ_DATA && object->size >= G_MAXUINT) {
934 GST_WARNING_OBJECT (demux,
935 "ASF Object size corrupted (greater than 32bit)");
944 gst_asf_demux_release_old_pads (GstASFDemux * demux)
946 GST_DEBUG_OBJECT (demux, "Releasing old pads");
948 while (demux->old_num_streams > 0) {
949 gst_pad_push_event (demux->old_stream[demux->old_num_streams - 1].pad,
950 gst_event_new_eos ());
951 gst_asf_demux_free_stream (demux,
952 &demux->old_stream[demux->old_num_streams - 1]);
953 --demux->old_num_streams;
955 memset (demux->old_stream, 0, sizeof (demux->old_stream));
956 demux->old_num_streams = 0;
960 gst_asf_demux_chain_headers (GstASFDemux * demux)
963 guint8 *header_data, *data = NULL;
964 const guint8 *cdata = NULL;
966 GstFlowReturn flow = GST_FLOW_OK;
968 cdata = (guint8 *) gst_adapter_map (demux->adapter, ASF_OBJECT_HEADER_SIZE);
972 if (!asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, TRUE))
974 if (obj.id != ASF_OBJ_HEADER)
977 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
979 /* + 50 for non-packet data at beginning of ASF_OBJ_DATA */
980 if (gst_adapter_available (demux->adapter) < obj.size + 50)
983 data = gst_adapter_take (demux->adapter, obj.size + 50);
986 header_size = obj.size;
987 flow = gst_asf_demux_process_object (demux, &header_data, &header_size);
988 if (flow != GST_FLOW_OK)
991 /* calculate where the packet data starts */
992 demux->data_offset = obj.size + 50;
994 /* now parse the beginning of the ASF_OBJ_DATA object */
995 if (!gst_asf_demux_parse_data_object_start (demux, data + obj.size))
998 if (demux->num_streams == 0)
1007 GST_LOG_OBJECT (demux, "not enough data in adapter yet");
1014 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1015 ("This doesn't seem to be an ASF file"));
1017 return GST_FLOW_ERROR;
1022 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1023 ("header parsing failed, or no streams found, flow = %s",
1024 gst_flow_get_name (flow)));
1026 return GST_FLOW_ERROR;
1031 gst_asf_demux_pull_data (GstASFDemux * demux, guint64 offset, guint size,
1032 GstBuffer ** p_buf, GstFlowReturn * p_flow)
1037 GST_LOG_OBJECT (demux, "pulling buffer at %" G_GUINT64_FORMAT "+%u",
1040 flow = gst_pad_pull_range (demux->sinkpad, offset, size, p_buf);
1042 if (G_LIKELY (p_flow))
1045 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1046 GST_DEBUG_OBJECT (demux, "flow %s pulling buffer at %" G_GUINT64_FORMAT
1047 "+%u", gst_flow_get_name (flow), offset, size);
1052 g_assert (*p_buf != NULL);
1054 buffer_size = gst_buffer_get_size (*p_buf);
1055 if (G_UNLIKELY (buffer_size < size)) {
1056 GST_DEBUG_OBJECT (demux, "short read pulling buffer at %" G_GUINT64_FORMAT
1057 "+%u (got only %" G_GSIZE_FORMAT " bytes)", offset, size, buffer_size);
1058 gst_buffer_unref (*p_buf);
1059 if (G_LIKELY (p_flow))
1060 *p_flow = GST_FLOW_EOS;
1068 static GstFlowReturn
1069 gst_asf_demux_pull_indices (GstASFDemux * demux)
1071 GstBuffer *buf = NULL;
1074 GstFlowReturn ret = GST_FLOW_OK;
1076 offset = demux->index_offset;
1078 if (G_UNLIKELY (offset == 0)) {
1079 GST_DEBUG_OBJECT (demux, "can't read indices, don't know index offset");
1084 while (gst_asf_demux_pull_data (demux, offset, 16 + 8, &buf, NULL)) {
1090 gst_buffer_map (buf, &map, GST_MAP_READ);
1091 g_assert (map.size >= 16 + 8);
1092 if (!asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE)) {
1093 GST_DEBUG_OBJECT (demux, "No valid object, corrupted index, ignoring");
1094 GST_MEMDUMP_OBJECT (demux, "Corrupted index ?", map.data, MIN (map.size,
1096 gst_buffer_unmap (buf, &map);
1097 gst_buffer_replace (&buf, NULL);
1098 /* Non-fatal, return */
1101 gst_buffer_unmap (buf, &map);
1102 gst_buffer_replace (&buf, NULL);
1104 /* check for sanity */
1105 if (G_UNLIKELY (obj.size > (5 * 1024 * 1024))) {
1106 GST_DEBUG_OBJECT (demux, "implausible index object size, bailing out");
1110 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, offset, obj.size, &buf,
1114 GST_LOG_OBJECT (demux, "index object at offset 0x%" G_GINT64_MODIFIER "X"
1115 ", size %u", offset, (guint) obj.size);
1117 offset += obj.size; /* increase before _process_object changes it */
1119 gst_buffer_map (buf, &map, GST_MAP_READ);
1120 g_assert (map.size >= obj.size);
1121 bufdata = (guint8 *) map.data;
1122 obj_size = obj.size;
1123 ret = gst_asf_demux_process_object (demux, &bufdata, &obj_size);
1124 gst_buffer_unmap (buf, &map);
1125 gst_buffer_replace (&buf, NULL);
1127 if (ret == ASF_FLOW_NEED_MORE_DATA) {
1128 /* Since indices are at the end of the file, if we need more data,
1129 * we consider it as a non-fatal corrupted index */
1134 if (G_UNLIKELY (ret != GST_FLOW_OK))
1140 GST_DEBUG_OBJECT (demux, "read %u index objects , returning %s", num_read,
1141 gst_flow_get_name (ret));
1146 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data)
1150 if (!asf_demux_peek_object (demux, data, 50, &obj, TRUE)) {
1151 GST_WARNING_OBJECT (demux, "Corrupted data");
1154 if (obj.id != ASF_OBJ_DATA) {
1155 GST_WARNING_OBJECT (demux, "headers not followed by a DATA object");
1159 demux->state = GST_ASF_DEMUX_STATE_DATA;
1161 if (!demux->broadcast && obj.size > 50) {
1162 demux->data_size = obj.size - 50;
1163 /* CHECKME: for at least one file this is off by +158 bytes?! */
1164 demux->index_offset = demux->data_offset + demux->data_size;
1166 demux->data_size = 0;
1167 demux->index_offset = 0;
1172 if (!demux->broadcast) {
1173 /* skip object header (24 bytes) and file GUID (16 bytes) */
1174 demux->num_packets = GST_READ_UINT64_LE (data + (16 + 8) + 16);
1176 demux->num_packets = 0;
1179 if (demux->num_packets == 0)
1180 demux->seekable = FALSE;
1182 /* fallback in the unlikely case that headers are inconsistent, can't hurt */
1183 if (demux->data_size == 0 && demux->num_packets > 0) {
1184 demux->data_size = demux->num_packets * demux->packet_size;
1185 demux->index_offset = demux->data_offset + demux->data_size;
1188 /* process pending stream objects and create pads for those */
1189 gst_asf_demux_process_queued_extended_stream_objects (demux);
1191 GST_INFO_OBJECT (demux, "Stream has %" G_GUINT64_FORMAT " packets, "
1192 "data_offset=%" G_GINT64_FORMAT ", data_size=%" G_GINT64_FORMAT
1193 ", index_offset=%" G_GUINT64_FORMAT, demux->num_packets,
1194 demux->data_offset, demux->data_size, demux->index_offset);
1200 gst_asf_demux_pull_headers (GstASFDemux * demux, GstFlowReturn * pflow)
1202 GstFlowReturn flow = GST_FLOW_OK;
1204 GstBuffer *buf = NULL;
1209 GST_LOG_OBJECT (demux, "reading headers");
1211 /* pull HEADER object header, so we know its size */
1212 if (!gst_asf_demux_pull_data (demux, demux->base_offset, 16 + 8, &buf, &flow))
1215 gst_buffer_map (buf, &map, GST_MAP_READ);
1216 g_assert (map.size >= 16 + 8);
1217 if (!asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE)) {
1218 gst_buffer_unmap (buf, &map);
1219 gst_buffer_replace (&buf, NULL);
1220 flow = GST_FLOW_ERROR;
1223 gst_buffer_unmap (buf, &map);
1224 gst_buffer_replace (&buf, NULL);
1226 if (obj.id != ASF_OBJ_HEADER)
1229 GST_LOG_OBJECT (demux, "header size = %" G_GUINT64_FORMAT, obj.size);
1231 /* pull HEADER object */
1232 if (!gst_asf_demux_pull_data (demux, demux->base_offset, obj.size, &buf,
1236 size = obj.size; /* don't want obj.size changed */
1237 gst_buffer_map (buf, &map, GST_MAP_READ);
1238 g_assert (map.size >= size);
1239 bufdata = (guint8 *) map.data;
1240 flow = gst_asf_demux_process_object (demux, &bufdata, &size);
1241 gst_buffer_unmap (buf, &map);
1242 gst_buffer_replace (&buf, NULL);
1244 if (flow != GST_FLOW_OK) {
1245 GST_WARNING_OBJECT (demux, "process_object: %s", gst_flow_get_name (flow));
1249 /* calculate where the packet data starts */
1250 demux->data_offset = demux->base_offset + obj.size + 50;
1252 /* now pull beginning of DATA object before packet data */
1253 if (!gst_asf_demux_pull_data (demux, demux->base_offset + obj.size, 50, &buf,
1257 gst_buffer_map (buf, &map, GST_MAP_READ);
1258 g_assert (map.size >= size);
1259 bufdata = (guint8 *) map.data;
1260 if (!gst_asf_demux_parse_data_object_start (demux, bufdata))
1263 if (demux->num_streams == 0)
1266 gst_buffer_unmap (buf, &map);
1267 gst_buffer_replace (&buf, NULL);
1275 gst_buffer_unmap (buf, &map);
1276 gst_buffer_replace (&buf, NULL);
1278 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1279 ("This doesn't seem to be an ASF file"));
1280 *pflow = GST_FLOW_ERROR;
1285 flow = GST_FLOW_ERROR;
1286 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1287 ("header parsing failed, or no streams found, flow = %s",
1288 gst_flow_get_name (flow)));
1293 gst_buffer_unmap (buf, &map);
1294 gst_buffer_replace (&buf, NULL);
1295 if (flow == ASF_FLOW_NEED_MORE_DATA)
1296 flow = GST_FLOW_ERROR;
1303 all_streams_prerolled (GstASFDemux * demux)
1305 GstClockTime preroll_time;
1306 guint i, num_no_data = 0;
1307 AsfStreamType prerolled_types = 0, all_types = 0;
1309 /* Allow at least 500ms of preroll_time */
1310 preroll_time = MAX (demux->preroll, 500 * GST_MSECOND);
1312 /* returns TRUE as long as there isn't a stream which (a) has data queued
1313 * and (b) the timestamp of last piece of data queued is < demux->preroll
1314 * AND there is at least one other stream with data queued */
1315 for (i = 0; i < demux->num_streams; ++i) {
1316 AsfPayload *last_payload = NULL;
1320 stream = &demux->stream[i];
1322 all_types |= stream->type;
1324 if (G_UNLIKELY (stream->payloads->len == 0)) {
1326 GST_LOG_OBJECT (stream->pad, "no data queued");
1330 prerolled_types |= stream->type;
1332 /* find last payload with timestamp */
1333 for (last_idx = stream->payloads->len - 1;
1334 last_idx >= 0 && (last_payload == NULL
1335 || !GST_CLOCK_TIME_IS_VALID (last_payload->ts)); --last_idx) {
1336 last_payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1339 GST_LOG_OBJECT (stream->pad, "checking if %" GST_TIME_FORMAT " > %"
1340 GST_TIME_FORMAT, GST_TIME_ARGS (last_payload->ts),
1341 GST_TIME_ARGS (preroll_time));
1342 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (last_payload->ts)
1343 || last_payload->ts <= preroll_time)) {
1344 GST_LOG_OBJECT (stream->pad, "not beyond preroll point yet");
1349 GST_LOG_OBJECT (demux, "all_types:%d prerolled_types:%d",
1350 all_types, prerolled_types);
1352 /* If streams of each present type have prerolled, we are good to go */
1353 if (all_types != 0 && prerolled_types == all_types)
1356 if (G_UNLIKELY (num_no_data > 0))
1364 gst_asf_demux_have_mutually_exclusive_active_stream (GstASFDemux * demux,
1369 for (l = demux->mut_ex_streams; l != NULL; l = l->next) {
1372 /* check for each mutual exclusion group whether it affects this stream */
1373 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1374 if (*mes == stream->id) {
1375 /* we are in this group; let's check if we've already activated streams
1376 * that are in the same group (and hence mutually exclusive to this
1378 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1381 for (i = 0; i < demux->num_streams; ++i) {
1382 if (demux->stream[i].id == *mes && demux->stream[i].active) {
1383 GST_LOG_OBJECT (demux, "stream with ID %d is mutually exclusive "
1384 "to already active stream with ID %d", stream->id,
1385 demux->stream[i].id);
1390 /* we can only be in this group once, let's break out and move on to
1391 * the next mutual exclusion group */
1402 gst_asf_demux_check_segment_ts (GstASFDemux * demux, GstClockTime payload_ts)
1404 /* remember the first queued timestamp for the segment */
1405 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->segment_ts) &&
1406 GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1407 GST_DEBUG_OBJECT (demux, "segment ts: %" GST_TIME_FORMAT,
1408 GST_TIME_ARGS (demux->first_ts));
1409 demux->segment_ts = payload_ts;
1410 /* always note, but only determines segment when streaming */
1411 if (demux->streaming)
1412 gst_segment_do_seek (&demux->segment, demux->in_segment.rate,
1413 GST_FORMAT_TIME, (GstSeekFlags) demux->segment.flags,
1414 GST_SEEK_TYPE_SET, demux->segment_ts, GST_SEEK_TYPE_NONE, 0, NULL);
1419 gst_asf_demux_get_first_ts (GstASFDemux * demux)
1421 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1422 GstClockTime first_ts = GST_CLOCK_TIME_NONE;
1425 /* go trhough each stream, find smallest timestamp */
1426 for (i = 0; i < demux->num_streams; ++i) {
1429 GstClockTime stream_min_ts = GST_CLOCK_TIME_NONE;
1430 GstClockTime stream_min_ts2 = GST_CLOCK_TIME_NONE; /* second smallest timestamp */
1431 stream = &demux->stream[i];
1433 for (j = 0; j < stream->payloads->len; ++j) {
1434 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1435 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1436 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts)
1437 || stream_min_ts > payload->ts)) {
1438 stream_min_ts = payload->ts;
1440 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1441 payload->ts > stream_min_ts &&
1442 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts2)
1443 || stream_min_ts2 > payload->ts)) {
1444 stream_min_ts2 = payload->ts;
1448 /* there are some DVR ms files where first packet has TS of 0 (instead of -1) while subsequent packets have
1449 regular (singificantly larger) timestamps. If we don't deal with it, we may end up with huge gap in timestamps
1450 which makes playback stuck. The 0 timestamp may also be valid though, if the second packet timestamp continues
1451 from it. I havent found a better way to distinguish between these two, except to set an arbitrary boundary
1452 and disregard the first 0 timestamp if the second timestamp is bigger than the boundary) */
1454 GST_DEBUG_OBJECT (demux,
1455 "stream #%u stream_min_ts %" GST_TIME_FORMAT " stream_min_ts2 %"
1456 GST_TIME_FORMAT, stream->id, GST_TIME_ARGS (stream_min_ts),
1457 GST_TIME_ARGS (stream_min_ts2));
1459 if (stream_min_ts == 0 && stream_min_ts2 > GST_SECOND) /* first timestamp is 0 and second is significantly larger, disregard the 0 */
1460 stream_min_ts = stream_min_ts2;
1462 if (GST_CLOCK_TIME_IS_VALID (stream_min_ts) &&
1463 (!GST_CLOCK_TIME_IS_VALID (first_ts) || first_ts > stream_min_ts))
1464 first_ts = stream_min_ts;
1467 if (!GST_CLOCK_TIME_IS_VALID (first_ts)) /* can happen */
1470 demux->first_ts = first_ts;
1472 /* update packets queued before we knew first timestamp */
1473 for (i = 0; i < demux->num_streams; ++i) {
1476 stream = &demux->stream[i];
1478 for (j = 0; j < stream->payloads->len; ++j) {
1479 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1480 if (GST_CLOCK_TIME_IS_VALID (payload->ts)) {
1481 if (payload->ts > first_ts)
1482 payload->ts -= first_ts;
1490 gst_asf_demux_check_segment_ts (demux, 0);
1496 gst_asf_demux_update_caps_from_payload (GstASFDemux * demux, AsfStream * stream)
1498 /* try to determine whether the stream is AC-3 or MPEG; In dvr-ms the codecTag is unreliable
1499 and often set wrong, inspecting the data is the only way that seem to be working */
1500 GstTypeFindProbability prob = GST_TYPE_FIND_NONE;
1501 GstCaps *caps = NULL;
1503 GstAdapter *adapter = gst_adapter_new ();
1505 for (i = 0; i < stream->payloads->len && prob < GST_TYPE_FIND_LIKELY; ++i) {
1507 AsfPayload *payload;
1510 payload = &g_array_index (stream->payloads, AsfPayload, i);
1511 gst_adapter_push (adapter, gst_buffer_ref (payload->buf));
1512 len = gst_adapter_available (adapter);
1513 data = gst_adapter_map (adapter, len);
1517 #define MIN_LENGTH 128
1519 /* look for the sync points */
1521 if (len < MIN_LENGTH || /* give typefind something to work on */
1522 (data[0] == 0x0b && data[1] == 0x77) || /* AC-3 sync point */
1523 (data[0] == 0xFF && ((data[1] & 0xF0) >> 4) == 0xF)) /* MPEG sync point */
1529 gst_caps_take (&caps, gst_type_find_helper_for_data (GST_OBJECT (demux),
1532 if (prob < GST_TYPE_FIND_LIKELY) {
1535 if (len > MIN_LENGTH)
1536 /* this wasn't it, look for another sync point */
1540 gst_adapter_unmap (adapter);
1543 gst_object_unref (adapter);
1546 gst_caps_take (&stream->caps, caps);
1554 gst_asf_demux_check_activate_streams (GstASFDemux * demux, gboolean force)
1556 guint i, actual_streams = 0;
1558 if (demux->activated_streams)
1561 if (!all_streams_prerolled (demux) && !force) {
1562 GST_DEBUG_OBJECT (demux, "not all streams with data beyond preroll yet");
1566 if (G_UNLIKELY (!gst_asf_demux_get_first_ts (demux)))
1569 for (i = 0; i < demux->num_streams; ++i) {
1570 AsfStream *stream = &demux->stream[i];
1572 if (stream->payloads->len > 0) {
1574 if (stream->inspect_payload && /* dvr-ms required payload inspection */
1575 !stream->active && /* do not inspect active streams (caps were already set) */
1576 !gst_asf_demux_update_caps_from_payload (demux, stream) && /* failed to determine caps */
1577 stream->payloads->len < 20) { /* if we couldn't determine the caps from 20 packets then just give up and use whatever was in codecTag */
1578 /* try to gather some more data */
1581 /* we don't check mutual exclusion stuff here; either we have data for
1582 * a stream, then we active it, or we don't, then we'll ignore it */
1583 GST_LOG_OBJECT (stream->pad, "is prerolled - activate!");
1584 gst_asf_demux_activate_stream (demux, stream);
1585 actual_streams += 1;
1587 GST_LOG_OBJECT (stream->pad, "no data, ignoring stream");
1591 if (actual_streams == 0) {
1592 /* We don't have any streams activated ! */
1593 GST_ERROR_OBJECT (demux, "No streams activated!");
1597 gst_asf_demux_release_old_pads (demux);
1599 demux->activated_streams = TRUE;
1600 GST_LOG_OBJECT (demux, "signalling no more pads");
1601 gst_element_no_more_pads (GST_ELEMENT (demux));
1605 /* returns the stream that has a complete payload with the lowest timestamp
1606 * queued, or NULL (we push things by timestamp because during the internal
1607 * prerolling we might accumulate more data then the external queues can take,
1608 * so we'd lock up if we pushed all accumulated data for stream N in one go) */
1610 gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
1612 AsfPayload *best_payload = NULL;
1613 AsfStream *best_stream = NULL;
1616 for (i = 0; i < demux->num_streams; ++i) {
1620 stream = &demux->stream[i];
1622 /* Don't push any data until we have at least one payload that falls within
1623 * the current segment. This way we can remove out-of-segment payloads that
1624 * don't need to be decoded after a seek, sending only data from the
1625 * keyframe directly before our segment start */
1626 if (stream->payloads->len > 0) {
1627 AsfPayload *payload = NULL;
1630 if (GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment)) {
1631 /* Reverse playback */
1633 if (stream->is_video) {
1634 /* We have to push payloads from KF to the first frame we accumulated (reverse order) */
1635 if (stream->reverse_kf_ready) {
1637 &g_array_index (stream->payloads, AsfPayload, stream->kf_pos);
1638 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (payload->ts))) {
1639 /* TODO : remove payload from the list? */
1646 /* find first complete payload with timestamp */
1647 for (j = stream->payloads->len - 1;
1648 j >= 0 && (payload == NULL
1649 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); --j) {
1650 payload = &g_array_index (stream->payloads, AsfPayload, j);
1653 /* If there's a complete payload queued for this stream */
1654 if (!gst_asf_payload_is_complete (payload))
1660 /* find last payload with timestamp */
1661 for (last_idx = stream->payloads->len - 1;
1662 last_idx >= 0 && (payload == NULL
1663 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); --last_idx) {
1664 payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1667 /* if this is first payload after seek we might need to update the segment */
1668 if (GST_CLOCK_TIME_IS_VALID (payload->ts))
1669 gst_asf_demux_check_segment_ts (demux, payload->ts);
1671 if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1672 (payload->ts < demux->segment.start))) {
1673 if (G_UNLIKELY ((demux->keyunit_sync) && (!demux->accurate)
1674 && payload->keyframe)) {
1675 GST_DEBUG_OBJECT (stream->pad,
1676 "Found keyframe, updating segment start to %" GST_TIME_FORMAT,
1677 GST_TIME_ARGS (payload->ts));
1678 demux->segment.start = payload->ts;
1679 demux->segment.time = payload->ts;
1681 GST_DEBUG_OBJECT (stream->pad, "Last queued payload has timestamp %"
1682 GST_TIME_FORMAT " which is before our segment start %"
1683 GST_TIME_FORMAT ", not pushing yet",
1684 GST_TIME_ARGS (payload->ts),
1685 GST_TIME_ARGS (demux->segment.start));
1690 /* find first complete payload with timestamp */
1692 j < stream->payloads->len && (payload == NULL
1693 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); ++j) {
1694 payload = &g_array_index (stream->payloads, AsfPayload, j);
1697 /* Now see if there's a complete payload queued for this stream */
1698 if (!gst_asf_payload_is_complete (payload))
1702 /* ... and whether its timestamp is lower than the current best */
1703 if (best_stream == NULL || best_payload->ts > payload->ts) {
1704 best_stream = stream;
1705 best_payload = payload;
1713 static GstFlowReturn
1714 gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
1717 GstFlowReturn ret = GST_FLOW_OK;
1719 if (G_UNLIKELY (!demux->activated_streams)) {
1720 if (!gst_asf_demux_check_activate_streams (demux, force))
1722 /* streams are now activated */
1725 while ((stream = gst_asf_demux_find_stream_with_complete_payload (demux))) {
1726 AsfPayload *payload;
1727 GstClockTime timestamp = GST_CLOCK_TIME_NONE;
1728 GstClockTime duration = GST_CLOCK_TIME_NONE;
1730 /* wait until we had a chance to "lock on" some payload's timestamp */
1731 if (G_UNLIKELY (demux->need_newsegment
1732 && !GST_CLOCK_TIME_IS_VALID (demux->segment_ts)))
1735 if (GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment) && stream->is_video
1736 && stream->payloads->len) {
1737 payload = &g_array_index (stream->payloads, AsfPayload, stream->kf_pos);
1739 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1742 /* do we need to send a newsegment event */
1743 if ((G_UNLIKELY (demux->need_newsegment))) {
1744 GstEvent *segment_event;
1746 /* safe default if insufficient upstream info */
1747 if (!GST_CLOCK_TIME_IS_VALID (demux->in_gap))
1750 if (demux->segment.stop == GST_CLOCK_TIME_NONE &&
1751 demux->segment.duration > 0) {
1752 /* slight HACK; prevent clipping of last bit */
1753 demux->segment.stop = demux->segment.duration + demux->in_gap;
1756 /* FIXME : only if ACCURATE ! */
1757 if (G_LIKELY (demux->keyunit_sync && !demux->accurate
1758 && (GST_CLOCK_TIME_IS_VALID (payload->ts)))
1759 && !GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment)) {
1760 GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
1761 GST_TIME_ARGS (payload->ts));
1762 demux->segment.start = payload->ts;
1763 demux->segment.time = payload->ts;
1766 GST_DEBUG_OBJECT (demux, "sending new-segment event %" GST_SEGMENT_FORMAT,
1769 /* note: we fix up all timestamps to start from 0, so this should be ok */
1770 segment_event = gst_event_new_segment (&demux->segment);
1771 if (demux->segment_seqnum)
1772 gst_event_set_seqnum (segment_event, demux->segment_seqnum);
1773 gst_asf_demux_send_event_unlocked (demux, segment_event);
1775 /* now post any global tags we may have found */
1776 if (demux->taglist == NULL) {
1777 demux->taglist = gst_tag_list_new_empty ();
1778 gst_tag_list_set_scope (demux->taglist, GST_TAG_SCOPE_GLOBAL);
1781 gst_tag_list_add (demux->taglist, GST_TAG_MERGE_REPLACE,
1782 GST_TAG_CONTAINER_FORMAT, "ASF", NULL);
1784 GST_DEBUG_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, demux->taglist);
1785 gst_asf_demux_send_event_unlocked (demux,
1786 gst_event_new_tag (demux->taglist));
1787 demux->taglist = NULL;
1789 demux->need_newsegment = FALSE;
1790 demux->segment_seqnum = 0;
1791 demux->segment_running = TRUE;
1794 /* Do we have tags pending for this stream? */
1795 if (G_UNLIKELY (stream->pending_tags)) {
1796 GST_LOG_OBJECT (stream->pad, "%" GST_PTR_FORMAT, stream->pending_tags);
1797 gst_pad_push_event (stream->pad,
1798 gst_event_new_tag (stream->pending_tags));
1799 stream->pending_tags = NULL;
1802 /* We have the whole packet now so we should push the packet to
1803 * the src pad now. First though we should check if we need to do
1805 if (G_UNLIKELY (stream->span > 1)) {
1806 gst_asf_demux_descramble_buffer (demux, stream, &payload->buf);
1809 payload->buf = gst_buffer_make_writable (payload->buf);
1811 if (G_LIKELY (!payload->keyframe)) {
1812 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DELTA_UNIT);
1815 if (G_UNLIKELY (stream->discont)) {
1816 GST_DEBUG_OBJECT (stream->pad, "marking DISCONT on stream");
1817 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1818 stream->discont = FALSE;
1821 if (G_UNLIKELY (stream->is_video && payload->par_x && payload->par_y &&
1822 (payload->par_x != stream->par_x) &&
1823 (payload->par_y != stream->par_y))) {
1824 GST_DEBUG ("Updating PAR (%d/%d => %d/%d)",
1825 stream->par_x, stream->par_y, payload->par_x, payload->par_y);
1826 stream->par_x = payload->par_x;
1827 stream->par_y = payload->par_y;
1828 stream->caps = gst_caps_make_writable (stream->caps);
1829 gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
1830 GST_TYPE_FRACTION, stream->par_x, stream->par_y, NULL);
1831 gst_pad_set_caps (stream->pad, stream->caps);
1834 if (G_UNLIKELY (stream->interlaced != payload->interlaced)) {
1835 GST_DEBUG ("Updating interlaced status (%d => %d)", stream->interlaced,
1836 payload->interlaced);
1837 stream->interlaced = payload->interlaced;
1838 stream->caps = gst_caps_make_writable (stream->caps);
1839 gst_caps_set_simple (stream->caps, "interlace-mode", G_TYPE_BOOLEAN,
1840 (stream->interlaced ? "mixed" : "progressive"), NULL);
1841 gst_pad_set_caps (stream->pad, stream->caps);
1844 /* (sort of) interpolate timestamps using upstream "frame of reference",
1845 * typically useful for live src, but might (unavoidably) mess with
1846 * position reporting if a live src is playing not so live content
1847 * (e.g. rtspsrc taking some time to fall back to tcp) */
1848 timestamp = payload->ts;
1849 if (GST_CLOCK_TIME_IS_VALID (timestamp)
1850 && !GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment)) {
1851 timestamp += demux->in_gap;
1853 /* Check if we're after the segment already, if so no need to push
1855 if (demux->segment.stop != -1 && timestamp > demux->segment.stop) {
1856 GST_DEBUG_OBJECT (stream->pad,
1857 "Payload after segment stop %" GST_TIME_FORMAT,
1858 GST_TIME_ARGS (demux->segment.stop));
1860 gst_flow_combiner_update_pad_flow (demux->flowcombiner, stream->pad,
1862 gst_buffer_unref (payload->buf);
1863 payload->buf = NULL;
1864 g_array_remove_index (stream->payloads, 0);
1865 /* Break out as soon as we have an issue */
1866 if (G_UNLIKELY (ret != GST_FLOW_OK))
1873 GST_BUFFER_PTS (payload->buf) = timestamp;
1875 if (payload->duration == GST_CLOCK_TIME_NONE
1876 && stream->ext_props.avg_time_per_frame != 0) {
1877 duration = stream->ext_props.avg_time_per_frame * 100;
1879 duration = payload->duration;
1881 GST_BUFFER_DURATION (payload->buf) = duration;
1883 /* FIXME: we should really set durations on buffers if we can */
1885 GST_LOG_OBJECT (stream->pad, "pushing buffer, %" GST_PTR_FORMAT,
1888 if (GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment) && stream->is_video) {
1889 if (stream->reverse_kf_ready == TRUE && stream->kf_pos == 0) {
1890 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1892 } else if (GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment)) {
1893 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1897 if (stream->active) {
1898 if (G_UNLIKELY (stream->first_buffer)) {
1899 if (stream->streamheader != NULL) {
1900 GST_DEBUG_OBJECT (stream->pad,
1901 "Pushing streamheader before first buffer");
1902 gst_pad_push (stream->pad, gst_buffer_ref (stream->streamheader));
1904 stream->first_buffer = FALSE;
1907 if (GST_CLOCK_TIME_IS_VALID (timestamp)
1908 && timestamp > demux->segment.position) {
1909 demux->segment.position = timestamp;
1910 if (GST_CLOCK_TIME_IS_VALID (duration))
1911 demux->segment.position += timestamp;
1914 ret = gst_pad_push (stream->pad, payload->buf);
1916 gst_flow_combiner_update_pad_flow (demux->flowcombiner, stream->pad,
1919 gst_buffer_unref (payload->buf);
1922 payload->buf = NULL;
1923 if (GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment) && stream->is_video
1924 && stream->reverse_kf_ready) {
1925 g_array_remove_index (stream->payloads, stream->kf_pos);
1928 if (stream->reverse_kf_ready == TRUE && stream->kf_pos < 0) {
1930 stream->reverse_kf_ready = FALSE;
1933 g_array_remove_index (stream->payloads, 0);
1936 /* Break out as soon as we have an issue */
1937 if (G_UNLIKELY (ret != GST_FLOW_OK))
1945 gst_asf_demux_check_buffer_is_header (GstASFDemux * demux, GstBuffer * buf)
1950 g_assert (buf != NULL);
1952 GST_LOG_OBJECT (demux, "Checking if buffer is a header");
1954 gst_buffer_map (buf, &map, GST_MAP_READ);
1956 /* we return false on buffer too small */
1957 if (map.size < ASF_OBJECT_HEADER_SIZE) {
1958 gst_buffer_unmap (buf, &map);
1962 /* check if it is a header */
1964 asf_demux_peek_object (demux, map.data, ASF_OBJECT_HEADER_SIZE, &obj,
1966 gst_buffer_unmap (buf, &map);
1967 if (valid && obj.id == ASF_OBJ_HEADER) {
1974 gst_asf_demux_check_chained_asf (GstASFDemux * demux)
1976 guint64 off = demux->data_offset + (demux->packet * demux->packet_size);
1977 GstFlowReturn ret = GST_FLOW_OK;
1978 GstBuffer *buf = NULL;
1979 gboolean header = FALSE;
1981 /* TODO maybe we should skip index objects after the data and look
1982 * further for a new header */
1983 if (gst_asf_demux_pull_data (demux, off, ASF_OBJECT_HEADER_SIZE, &buf, &ret)) {
1984 g_assert (buf != NULL);
1985 /* check if it is a header */
1986 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1987 GST_DEBUG_OBJECT (demux, "new base offset: %" G_GUINT64_FORMAT, off);
1988 demux->base_offset = off;
1992 gst_buffer_unref (buf);
1999 gst_asf_demux_loop (GstASFDemux * demux)
2001 GstFlowReturn flow = GST_FLOW_OK;
2002 GstBuffer *buf = NULL;
2005 if (G_UNLIKELY (demux->state == GST_ASF_DEMUX_STATE_HEADER)) {
2006 if (!gst_asf_demux_pull_headers (demux, &flow)) {
2010 flow = gst_asf_demux_pull_indices (demux);
2011 if (flow != GST_FLOW_OK)
2015 g_assert (demux->state == GST_ASF_DEMUX_STATE_DATA);
2017 if (G_UNLIKELY (demux->num_packets != 0
2018 && demux->packet >= demux->num_packets))
2021 GST_LOG_OBJECT (demux, "packet %u/%u", (guint) demux->packet + 1,
2022 (guint) demux->num_packets);
2024 off = demux->data_offset + (demux->packet * demux->packet_size);
2026 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, off,
2027 demux->packet_size * demux->speed_packets, &buf, &flow))) {
2028 GST_DEBUG_OBJECT (demux, "got flow %s", gst_flow_get_name (flow));
2029 if (flow == GST_FLOW_EOS) {
2031 } else if (flow == GST_FLOW_FLUSHING) {
2032 GST_DEBUG_OBJECT (demux, "Not fatal");
2039 if (G_LIKELY (demux->speed_packets == 1)) {
2040 GstAsfDemuxParsePacketError err;
2041 err = gst_asf_demux_parse_packet (demux, buf);
2042 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
2043 /* when we don't know when the data object ends, we should check
2044 * for a chained asf */
2045 if (demux->num_packets == 0) {
2046 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
2047 GST_INFO_OBJECT (demux, "Chained asf found");
2048 demux->base_offset = off;
2049 gst_asf_demux_reset (demux, TRUE);
2050 gst_buffer_unref (buf);
2054 /* FIXME: We should tally up fatal errors and error out only
2055 * after a few broken packets in a row? */
2057 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
2058 gst_buffer_unref (buf);
2060 if (GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment)
2061 && !demux->seek_to_cur_pos) {
2063 if (demux->packet < 0) {
2073 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
2075 if (GST_ASF_DEMUX_IS_REVERSE_PLAYBACK (demux->segment)
2076 && !demux->seek_to_cur_pos) {
2078 if (demux->packet < 0) {
2087 for (n = 0; n < demux->speed_packets; n++) {
2089 GstAsfDemuxParsePacketError err;
2092 gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL,
2093 n * demux->packet_size, demux->packet_size);
2094 err = gst_asf_demux_parse_packet (demux, sub);
2095 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
2096 /* when we don't know when the data object ends, we should check
2097 * for a chained asf */
2098 if (demux->num_packets == 0) {
2099 if (gst_asf_demux_check_buffer_is_header (demux, sub)) {
2100 GST_INFO_OBJECT (demux, "Chained asf found");
2101 demux->base_offset = off + n * demux->packet_size;
2102 gst_asf_demux_reset (demux, TRUE);
2103 gst_buffer_unref (sub);
2104 gst_buffer_unref (buf);
2108 /* FIXME: We should tally up fatal errors and error out only
2109 * after a few broken packets in a row? */
2111 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
2115 gst_buffer_unref (sub);
2117 if (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)
2118 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
2124 /* reset speed pull */
2125 demux->speed_packets = 1;
2128 gst_buffer_unref (buf);
2130 if (G_UNLIKELY ((demux->num_packets > 0
2131 && demux->packet >= demux->num_packets)
2132 || flow == GST_FLOW_EOS)) {
2133 GST_LOG_OBJECT (demux, "reached EOS");
2137 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
2138 GST_DEBUG_OBJECT (demux, "pushing complete payloads failed");
2142 /* check if we're at the end of the configured segment */
2143 /* FIXME: check if segment end reached etc. */
2149 /* if we haven't activated our streams yet, this might be because we have
2150 * less data queued than required for preroll; force stream activation and
2151 * send any pending payloads before sending EOS */
2152 if (!demux->activated_streams)
2153 flow = gst_asf_demux_push_complete_payloads (demux, TRUE);
2155 /* we want to push an eos or post a segment-done in any case */
2156 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
2159 /* for segment playback we need to post when (in stream time)
2160 * we stopped, this is either stop (when set) or the duration. */
2161 if ((stop = demux->segment.stop) == -1)
2162 stop = demux->segment.duration;
2164 GST_INFO_OBJECT (demux, "Posting segment-done, at end of segment");
2165 gst_element_post_message (GST_ELEMENT_CAST (demux),
2166 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
2168 gst_asf_demux_send_event_unlocked (demux,
2169 gst_event_new_segment_done (GST_FORMAT_TIME, stop));
2170 } else if (flow != GST_FLOW_EOS) {
2171 /* check if we have a chained asf, in case, we don't eos yet */
2172 if (gst_asf_demux_check_chained_asf (demux)) {
2173 GST_INFO_OBJECT (demux, "Chained ASF starting");
2174 gst_asf_demux_reset (demux, TRUE);
2179 if (!(demux->segment.flags & GST_SEEK_FLAG_SEGMENT)) {
2180 if (demux->activated_streams) {
2181 /* normal playback, send EOS to all linked pads */
2182 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
2183 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
2185 GST_WARNING_OBJECT (demux, "EOS without exposed streams");
2186 flow = GST_FLOW_EOS;
2189 /* ... and fall through to pause */
2193 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
2194 gst_flow_get_name (flow));
2195 demux->segment_running = FALSE;
2196 gst_pad_pause_task (demux->sinkpad);
2198 /* For the error cases */
2199 if (flow == GST_FLOW_EOS && !demux->activated_streams) {
2200 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
2201 ("This doesn't seem to be an ASF file"));
2202 } else if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
2203 /* Post an error. Hopefully something else already has, but if not... */
2204 GST_ELEMENT_FLOW_ERROR (demux, flow);
2205 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
2214 GST_DEBUG_OBJECT (demux, "Read failed, doh");
2215 flow = GST_FLOW_EOS;
2219 /* See FIXMEs above */
2222 gst_buffer_unref (buf);
2223 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2224 ("Error parsing ASF packet %u", (guint) demux->packet));
2225 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
2226 flow = GST_FLOW_ERROR;
2232 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
2233 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
2234 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
2237 gst_asf_demux_check_header (GstASFDemux * demux)
2240 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
2241 ASF_OBJECT_HEADER_SIZE);
2242 if (cdata == NULL) /* need more data */
2243 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
2245 if (asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE)
2246 && obj.id == ASF_OBJ_HEADER) {
2247 return GST_ASF_DEMUX_CHECK_HEADER_YES;
2250 return GST_ASF_DEMUX_CHECK_HEADER_NO;
2253 static GstFlowReturn
2254 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
2256 GstFlowReturn ret = GST_FLOW_OK;
2259 demux = GST_ASF_DEMUX (parent);
2261 GST_LOG_OBJECT (demux,
2262 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
2263 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
2264 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
2266 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
2267 GST_DEBUG_OBJECT (demux, "received DISCONT");
2268 gst_asf_demux_mark_discont (demux);
2271 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
2272 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
2273 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
2274 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
2275 ", interpolation gap: %" GST_TIME_FORMAT,
2276 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
2279 gst_adapter_push (demux->adapter, buf);
2281 switch (demux->state) {
2282 case GST_ASF_DEMUX_STATE_INDEX:{
2283 gint result = gst_asf_demux_check_header (demux);
2284 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
2287 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
2288 /* we don't care about this, probably an index */
2289 /* TODO maybe would be smarter to skip all the indices
2290 * until we got a new header or EOS to decide */
2291 GST_LOG_OBJECT (demux, "Received index object, its EOS");
2294 GST_INFO_OBJECT (demux, "Chained asf starting");
2295 /* cleanup and get ready for a chained asf */
2296 gst_asf_demux_reset (demux, TRUE);
2300 case GST_ASF_DEMUX_STATE_HEADER:{
2301 ret = gst_asf_demux_chain_headers (demux);
2302 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
2304 /* otherwise fall through */
2306 case GST_ASF_DEMUX_STATE_DATA:
2310 data_size = demux->packet_size;
2312 while (gst_adapter_available (demux->adapter) >= data_size) {
2314 GstAsfDemuxParsePacketError err;
2316 /* we don't know the length of the stream
2317 * check for a chained asf everytime */
2318 if (demux->num_packets == 0) {
2319 gint result = gst_asf_demux_check_header (demux);
2321 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
2322 GST_INFO_OBJECT (demux, "Chained asf starting");
2323 /* cleanup and get ready for a chained asf */
2324 gst_asf_demux_reset (demux, TRUE);
2327 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2328 && demux->packet >= demux->num_packets)) {
2329 /* do not overshoot data section when streaming */
2333 buf = gst_adapter_take_buffer (demux->adapter, data_size);
2335 /* FIXME: We should tally up fatal errors and error out only
2336 * after a few broken packets in a row? */
2337 err = gst_asf_demux_parse_packet (demux, buf);
2339 gst_buffer_unref (buf);
2341 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
2342 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
2344 GST_WARNING_OBJECT (demux, "Parse error");
2346 if (demux->packet >= 0)
2349 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2350 && demux->packet >= demux->num_packets)) {
2351 demux->state = GST_ASF_DEMUX_STATE_INDEX;
2356 g_assert_not_reached ();
2360 if (ret != GST_FLOW_OK)
2361 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
2367 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
2373 static inline gboolean
2374 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
2376 if (*p_size < num_bytes)
2379 *p_data += num_bytes;
2380 *p_size -= num_bytes;
2384 static inline guint8
2385 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
2389 g_assert (*p_size >= 1);
2390 ret = GST_READ_UINT8 (*p_data);
2391 *p_data += sizeof (guint8);
2392 *p_size -= sizeof (guint8);
2396 static inline guint16
2397 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
2401 g_assert (*p_size >= 2);
2402 ret = GST_READ_UINT16_LE (*p_data);
2403 *p_data += sizeof (guint16);
2404 *p_size -= sizeof (guint16);
2408 static inline guint32
2409 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
2413 g_assert (*p_size >= 4);
2414 ret = GST_READ_UINT32_LE (*p_data);
2415 *p_data += sizeof (guint32);
2416 *p_size -= sizeof (guint32);
2420 static inline guint64
2421 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
2425 g_assert (*p_size >= 8);
2426 ret = GST_READ_UINT64_LE (*p_data);
2427 *p_data += sizeof (guint64);
2428 *p_size -= sizeof (guint64);
2433 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2434 guint8 ** p_data, guint64 * p_size)
2438 if (*p_size < num_bytes_to_read)
2441 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2442 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2444 *p_data += num_bytes_to_read;
2445 *p_size -= num_bytes_to_read;
2451 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2452 guint8 ** p_data, guint64 * p_size)
2456 if (*p_size < num_bytes_to_read)
2459 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2460 *p_data += num_bytes_to_read;
2461 *p_size -= num_bytes_to_read;
2466 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2467 guint8 ** p_data, guint64 * p_size)
2477 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2480 *p_strlen = s_length;
2482 if (s_length == 0) {
2483 GST_WARNING ("zero-length string");
2484 *p_str = g_strdup ("");
2488 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2491 g_assert (s != NULL);
2493 /* just because They don't exist doesn't
2494 * mean They are not out to get you ... */
2495 if (s[s_length - 1] != '\0') {
2496 s = g_realloc (s, s_length + 1);
2500 *p_str = (gchar *) s;
2506 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2508 g_assert (*p_size >= 4 * sizeof (guint32));
2510 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2511 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2512 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2513 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2517 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2520 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2523 /* WAVEFORMATEX Structure */
2524 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2525 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2526 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2527 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2528 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2529 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2530 /* Codec specific data size */
2531 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2532 if (audio->size > *p_size) {
2533 GST_WARNING ("Corrupted audio codec_data (should be at least %u bytes, is %"
2534 G_GUINT64_FORMAT " long)", audio->size, *p_size);
2541 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2544 if (*p_size < (4 + 4 + 1 + 2))
2547 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2548 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2549 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2550 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2555 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2556 guint8 ** p_data, guint64 * p_size)
2558 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2561 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2563 if (fmt->size < 40) {
2564 GST_WARNING ("Corrupted asf_stream_video_format (size < 40)");
2567 if ((guint64) fmt->size - 4 > *p_size) {
2568 GST_WARNING ("Corrupted asf_stream_video_format (codec_data is too small)");
2571 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2572 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2573 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2574 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2575 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2576 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2577 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2578 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2579 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2580 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2585 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2589 for (i = 0; i < demux->num_streams; i++) {
2590 if (demux->stream[i].id == id)
2591 return &demux->stream[i];
2594 if (gst_asf_demux_is_unknown_stream (demux, id))
2595 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2600 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2601 GstCaps * caps, guint16 id, gboolean is_video, GstBuffer * streamheader,
2606 gst_pad_use_fixed_caps (src_pad);
2607 gst_pad_set_caps (src_pad, caps);
2609 gst_pad_set_event_function (src_pad,
2610 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2611 gst_pad_set_query_function (src_pad,
2612 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2614 stream = &demux->stream[demux->num_streams];
2615 stream->caps = caps;
2616 stream->pad = src_pad;
2618 stream->fps_known = !is_video; /* bit hacky for audio */
2619 stream->is_video = is_video;
2620 stream->pending_tags = tags;
2621 stream->discont = TRUE;
2622 stream->first_buffer = TRUE;
2623 stream->streamheader = streamheader;
2624 if (stream->streamheader) {
2625 stream->streamheader = gst_buffer_make_writable (streamheader);
2626 GST_BUFFER_FLAG_SET (stream->streamheader, GST_BUFFER_FLAG_HEADER);
2631 st = gst_caps_get_structure (caps, 0);
2632 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2633 par_x > 0 && par_y > 0) {
2634 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2635 stream->par_x = par_x;
2636 stream->par_y = par_y;
2640 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2642 /* TODO: create this array during reverse play? */
2643 stream->payloads_rev = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2645 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2646 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2648 ++demux->num_streams;
2650 stream->active = FALSE;
2656 gst_asf_demux_add_stream_headers_to_caps (GstASFDemux * demux,
2657 GstBuffer * buffer, GstStructure * structure)
2659 GValue arr_val = G_VALUE_INIT;
2660 GValue buf_val = G_VALUE_INIT;
2662 g_value_init (&arr_val, GST_TYPE_ARRAY);
2663 g_value_init (&buf_val, GST_TYPE_BUFFER);
2665 gst_value_set_buffer (&buf_val, buffer);
2666 gst_value_array_append_and_take_value (&arr_val, &buf_val);
2668 gst_structure_take_value (structure, "streamheader", &arr_val);
2672 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2673 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2675 GstTagList *tags = NULL;
2676 GstBuffer *extradata = NULL;
2679 guint16 size_left = 0;
2680 gchar *codec_name = NULL;
2683 size_left = audio->size;
2685 /* Create the audio pad */
2686 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2688 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2691 /* Swallow up any left over data and set up the
2692 * standard properties from the header info */
2694 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2695 "codec specific data", size_left);
2697 g_assert (size_left <= *p_size);
2698 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2701 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2702 * additional two bytes indicating extradata. */
2703 /* FIXME: Handle the channel reorder map here */
2704 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2705 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2708 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2709 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2712 /* Informing about that audio format we just added */
2714 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2715 g_free (codec_name);
2718 if (audio->byte_rate > 0) {
2719 /* Some ASF files have no bitrate props object (often seen with
2720 * ASF files that contain raw audio data). Example files can
2721 * be generated with FFmpeg (tested with v2.8.6), like this:
2723 * ffmpeg -i sine-wave.wav -c:a pcm_alaw file.asf
2725 * In this case, if audio->byte_rate is nonzero, use that as
2728 guint bitrate = audio->byte_rate * 8;
2731 tags = gst_tag_list_new_empty ();
2733 /* Add bitrate, but only if there is none set already, since
2734 * this is just a fallback in case there is no bitrate tag
2735 * already present */
2736 gst_tag_list_add (tags, GST_TAG_MERGE_KEEP, GST_TAG_BITRATE, bitrate, NULL);
2740 gst_buffer_unref (extradata);
2742 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2743 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2744 audio->codec_tag, tags);
2746 ++demux->num_audio_streams;
2748 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, NULL, tags);
2752 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2753 asf_stream_video_format * video, guint16 id,
2754 guint8 ** p_data, guint64 * p_size)
2756 GstTagList *tags = NULL;
2757 GstStructure *caps_s;
2758 GstBuffer *extradata = NULL;
2763 gchar *codec_name = NULL;
2764 guint64 size_left = video->size - 40;
2765 GstBuffer *streamheader = NULL;
2766 guint par_w = 1, par_h = 1;
2768 /* Create the video pad */
2769 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2770 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2773 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2775 GST_LOG ("Video header has %" G_GUINT64_FORMAT
2776 " bytes of codec specific data (vs %" G_GUINT64_FORMAT ")", size_left,
2778 g_assert (size_left <= *p_size);
2779 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2782 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2784 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2785 caps = gst_riff_create_video_caps (video->tag, NULL,
2786 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2789 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2790 G_TYPE_UINT, video->tag, NULL);
2795 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2796 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2797 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2800 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2804 /* retry with the global metadata */
2805 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2806 demux->global_metadata);
2807 s = demux->global_metadata;
2808 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2809 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2810 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2811 if (ax > 0 && ay > 0) {
2814 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2819 s = gst_caps_get_structure (caps, 0);
2820 gst_structure_remove_field (s, "framerate");
2823 caps_s = gst_caps_get_structure (caps, 0);
2825 /* add format field with fourcc to WMV/VC1 caps to differentiate variants */
2826 if (gst_structure_has_name (caps_s, "video/x-wmv")) {
2827 str = g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2828 gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
2831 /* check if h264 has codec_data (avc) or streamheaders (bytestream) */
2832 } else if (gst_structure_has_name (caps_s, "video/x-h264")) {
2833 const GValue *value = gst_structure_get_value (caps_s, "codec_data");
2835 GstBuffer *buf = gst_value_get_buffer (value);
2838 if (gst_buffer_map (buf, &mapinfo, GST_MAP_READ)) {
2839 if (mapinfo.size >= 4 && GST_READ_UINT32_BE (mapinfo.data) == 1) {
2840 /* this looks like a bytestream start */
2841 streamheader = gst_buffer_ref (buf);
2842 gst_asf_demux_add_stream_headers_to_caps (demux, buf, caps_s);
2843 gst_structure_remove_field (caps_s, "codec_data");
2846 gst_buffer_unmap (buf, &mapinfo);
2851 /* For a 3D video, set multiview information into the caps based on
2852 * what was detected during object parsing */
2853 if (demux->asf_3D_mode != GST_ASF_3D_NONE) {
2854 GstVideoMultiviewMode mv_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
2855 GstVideoMultiviewFlags mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
2856 const gchar *mview_mode_str;
2858 switch (demux->asf_3D_mode) {
2859 case GST_ASF_3D_SIDE_BY_SIDE_HALF_LR:
2860 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2862 case GST_ASF_3D_SIDE_BY_SIDE_HALF_RL:
2863 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2864 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2866 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR:
2867 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2869 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL:
2870 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2871 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2873 case GST_ASF_3D_DUAL_STREAM:{
2874 gboolean is_right_view = FALSE;
2875 /* if Advanced_Mutual_Exclusion object exists, use it
2876 * to figure out which is the left view (lower ID) */
2877 if (demux->mut_ex_streams != NULL) {
2881 length = g_slist_length (demux->mut_ex_streams);
2883 for (i = 0; i < length; i++) {
2886 v_s_id = g_slist_nth_data (demux->mut_ex_streams, i);
2888 GST_DEBUG_OBJECT (demux,
2889 "has Mutual_Exclusion object. stream id in object is %d",
2890 GPOINTER_TO_INT (v_s_id));
2892 if (id > GPOINTER_TO_INT (v_s_id))
2893 is_right_view = TRUE;
2896 /* if the Advaced_Mutual_Exclusion object doesn't exist, assume the
2897 * first video stream encountered has the lower ID */
2898 if (demux->num_video_streams > 0) {
2899 /* This is not the first video stream, assuming right eye view */
2900 is_right_view = TRUE;
2904 mv_mode = GST_VIDEO_MULTIVIEW_MODE_RIGHT;
2906 mv_mode = GST_VIDEO_MULTIVIEW_MODE_LEFT;
2913 GST_INFO_OBJECT (demux,
2914 "stream_id %d, has multiview-mode %d flags 0x%x", id, mv_mode,
2917 mview_mode_str = gst_video_multiview_mode_to_caps_string (mv_mode);
2918 if (mview_mode_str != NULL) {
2919 if (gst_video_multiview_guess_half_aspect (mv_mode, video->width,
2920 video->height, par_w, par_h))
2921 mv_flags |= GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT;
2923 gst_caps_set_simple (caps,
2924 "multiview-mode", G_TYPE_STRING, mview_mode_str,
2925 "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mv_flags,
2926 GST_FLAG_SET_MASK_EXACT, NULL);
2931 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2932 g_free (codec_name);
2936 gst_buffer_unref (extradata);
2938 GST_INFO ("Adding video stream #%u, id %u, codec %"
2939 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2940 GST_FOURCC_ARGS (video->tag), video->tag);
2942 ++demux->num_video_streams;
2944 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE,
2945 streamheader, tags);
2949 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2951 if (!stream->active) {
2955 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2956 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2957 gst_pad_set_active (stream->pad, TRUE);
2960 gst_pad_create_stream_id_printf (stream->pad, GST_ELEMENT_CAST (demux),
2961 "%03u", stream->id);
2964 gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
2966 if (gst_event_parse_group_id (event, &demux->group_id))
2967 demux->have_group_id = TRUE;
2969 demux->have_group_id = FALSE;
2970 gst_event_unref (event);
2971 } else if (!demux->have_group_id) {
2972 demux->have_group_id = TRUE;
2973 demux->group_id = gst_util_group_id_next ();
2976 event = gst_event_new_stream_start (stream_id);
2977 if (demux->have_group_id)
2978 gst_event_set_group_id (event, demux->group_id);
2980 gst_pad_push_event (stream->pad, event);
2982 gst_pad_set_caps (stream->pad, stream->caps);
2984 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2985 gst_flow_combiner_add_pad (demux->flowcombiner, stream->pad);
2986 stream->active = TRUE;
2991 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2994 AsfCorrectionType correction_type;
2995 AsfStreamType stream_type;
2996 GstClockTime time_offset;
2997 gboolean is_encrypted G_GNUC_UNUSED;
3001 guint stream_specific_size;
3002 guint type_specific_size G_GNUC_UNUSED;
3003 guint unknown G_GNUC_UNUSED;
3004 gboolean inspect_payload = FALSE;
3005 AsfStream *stream = NULL;
3007 /* Get the rest of the header's header */
3008 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
3009 goto not_enough_data;
3011 gst_asf_demux_get_guid (&guid, &data, &size);
3012 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
3014 gst_asf_demux_get_guid (&guid, &data, &size);
3015 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
3017 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
3019 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
3020 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
3022 flags = gst_asf_demux_get_uint16 (&data, &size);
3023 stream_id = flags & 0x7f;
3024 is_encrypted = ! !(flags & 0x8000);
3025 unknown = gst_asf_demux_get_uint32 (&data, &size);
3027 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
3028 stream_id, GST_TIME_ARGS (time_offset));
3030 /* dvr-ms has audio stream declared in stream specific data */
3031 if (stream_type == ASF_STREAM_EXT_EMBED_HEADER) {
3032 AsfExtStreamType ext_stream_type;
3033 gst_asf_demux_get_guid (&guid, &data, &size);
3034 ext_stream_type = gst_asf_demux_identify_guid (asf_ext_stream_guids, &guid);
3036 if (ext_stream_type == ASF_EXT_STREAM_AUDIO) {
3037 inspect_payload = TRUE;
3039 gst_asf_demux_get_guid (&guid, &data, &size);
3040 gst_asf_demux_get_uint32 (&data, &size);
3041 gst_asf_demux_get_uint32 (&data, &size);
3042 gst_asf_demux_get_uint32 (&data, &size);
3043 gst_asf_demux_get_guid (&guid, &data, &size);
3044 gst_asf_demux_get_uint32 (&data, &size);
3045 stream_type = ASF_STREAM_AUDIO;
3049 switch (stream_type) {
3050 case ASF_STREAM_AUDIO:{
3051 asf_stream_audio audio_object;
3053 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
3054 goto not_enough_data;
3056 GST_INFO ("Object is an audio stream with %u bytes of additional data",
3059 stream = gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
3062 switch (correction_type) {
3063 case ASF_CORRECTION_ON:{
3064 guint span, packet_size, chunk_size, data_size, silence_data;
3066 GST_INFO ("Using error correction");
3068 if (size < (1 + 2 + 2 + 2 + 1))
3069 goto not_enough_data;
3071 span = gst_asf_demux_get_uint8 (&data, &size);
3072 packet_size = gst_asf_demux_get_uint16 (&data, &size);
3073 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
3074 data_size = gst_asf_demux_get_uint16 (&data, &size);
3075 silence_data = gst_asf_demux_get_uint8 (&data, &size);
3077 stream->span = span;
3079 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
3080 packet_size, chunk_size, data_size, span, silence_data);
3082 if (stream->span > 1) {
3083 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
3084 /* Disable descrambling */
3087 /* FIXME: this else branch was added for
3088 * weird_al_yankovic - the saga begins.asf */
3089 stream->ds_packet_size = packet_size;
3090 stream->ds_chunk_size = chunk_size;
3093 /* Descambling is enabled */
3094 stream->ds_packet_size = packet_size;
3095 stream->ds_chunk_size = chunk_size;
3098 /* Now skip the rest of the silence data */
3100 gst_bytestream_flush (demux->bs, data_size - 1);
3102 /* FIXME: CHECKME. And why -1? */
3103 if (data_size > 1) {
3104 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
3105 goto not_enough_data;
3111 case ASF_CORRECTION_OFF:{
3112 GST_INFO ("Error correction off");
3113 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
3114 goto not_enough_data;
3118 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3119 ("Audio stream using unknown error correction"));
3126 case ASF_STREAM_VIDEO:{
3127 asf_stream_video_format video_format_object;
3128 asf_stream_video video_object;
3131 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
3132 goto not_enough_data;
3134 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
3136 GST_INFO ("object is a video stream with %u bytes of "
3137 "additional data", vsize);
3139 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
3141 goto not_enough_data;
3144 stream = gst_asf_demux_add_video_stream (demux, &video_format_object,
3145 stream_id, &data, &size);
3151 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
3153 demux->other_streams =
3154 g_slist_append (demux->other_streams, GINT_TO_POINTER (stream_id));
3159 stream->inspect_payload = inspect_payload;
3160 stream->type = stream_type;
3166 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
3167 /* we'll error out later if we found no streams */
3172 static const gchar *
3173 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
3177 const gchar *asf_name;
3178 const gchar *gst_name;
3181 "WM/Genre", GST_TAG_GENRE}, {
3182 "WM/AlbumTitle", GST_TAG_ALBUM}, {
3183 "WM/AlbumArtist", GST_TAG_ARTIST}, {
3184 "WM/Picture", GST_TAG_IMAGE}, {
3185 "WM/Track", GST_TAG_TRACK_NUMBER}, {
3186 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
3187 "WM/Year", GST_TAG_DATE_TIME}
3188 /* { "WM/Composer", GST_TAG_COMPOSER } */
3193 if (name_utf8 == NULL) {
3194 GST_WARNING ("Failed to convert name to UTF8, skipping");
3198 out = strlen (name_utf8);
3200 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3201 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
3202 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
3203 return tags[i].gst_name;
3210 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
3212 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
3216 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
3218 if (taglist == NULL)
3221 if (gst_tag_list_is_empty (taglist)) {
3222 gst_tag_list_unref (taglist);
3226 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
3227 gst_tag_list_set_scope (t, GST_TAG_SCOPE_GLOBAL);
3229 gst_tag_list_unref (demux->taglist);
3230 gst_tag_list_unref (taglist);
3232 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
3235 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
3236 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
3237 #define ASF_DEMUX_DATA_TYPE_BOOL 2
3238 #define ASF_DEMUX_DATA_TYPE_DWORD 3
3241 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
3245 const guint8 *img_data = NULL;
3246 guint32 img_data_len = 0;
3247 guint8 pic_type = 0;
3249 gst_byte_reader_init (&r, tag_data, tag_data_len);
3251 /* skip mime type string (we don't trust it and do our own typefinding),
3252 * and also skip the description string, since we don't use it */
3253 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
3254 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
3255 !gst_byte_reader_skip_string_utf16 (&r) ||
3256 !gst_byte_reader_skip_string_utf16 (&r) ||
3257 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
3258 goto not_enough_data;
3262 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
3263 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
3269 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
3270 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
3275 /* Extended Content Description Object */
3276 static GstFlowReturn
3277 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
3280 /* Other known (and unused) 'text/unicode' metadata available :
3283 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
3284 * WMFSDKVersion = 9.00.00.2980
3285 * WMFSDKNeeded = 0.0.0.0000
3286 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
3287 * WM/Publisher = 4AD
3289 * WM/ProviderRating = 8
3290 * WM/ProviderStyle = Rock (similar to WM/Genre)
3291 * WM/GenreID (similar to WM/Genre)
3292 * WM/TrackNumber (same as WM/Track but as a string)
3294 * Other known (and unused) 'non-text' metadata available :
3300 * We might want to read WM/TrackNumber and use atoi() if we don't have
3304 GstTagList *taglist;
3305 guint16 blockcount, i;
3306 gboolean content3D = FALSE;
3310 const gchar *interleave_name;
3311 GstASF3DMode interleaving_type;
3312 } stereoscopic_layout_map[] = {
3314 "SideBySideRF", GST_ASF_3D_SIDE_BY_SIDE_HALF_RL}, {
3315 "SideBySideLF", GST_ASF_3D_SIDE_BY_SIDE_HALF_LR}, {
3316 "OverUnderRT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL}, {
3317 "OverUnderLT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR}, {
3318 "DualStream", GST_ASF_3D_DUAL_STREAM}
3320 GST_INFO_OBJECT (demux, "object is an extended content description");
3322 taglist = gst_tag_list_new_empty ();
3324 /* Content Descriptor Count */
3326 goto not_enough_data;
3328 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3330 for (i = 1; i <= blockcount; ++i) {
3331 const gchar *gst_tag_name;
3335 GValue tag_value = { 0, };
3338 gchar *name_utf8 = NULL;
3342 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
3343 goto not_enough_data;
3347 goto not_enough_data;
3349 /* Descriptor Value Data Type */
3350 datatype = gst_asf_demux_get_uint16 (&data, &size);
3352 /* Descriptor Value (not really a string, but same thing reading-wise) */
3353 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
3355 goto not_enough_data;
3359 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
3361 if (name_utf8 != NULL) {
3362 GST_DEBUG ("Found tag/metadata %s", name_utf8);
3364 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
3365 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
3368 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
3371 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
3374 /* get rid of tags with empty value */
3375 if (value_utf8 != NULL && *value_utf8 != '\0') {
3376 GST_DEBUG ("string value %s", value_utf8);
3378 value_utf8[out] = '\0';
3380 if (gst_tag_name != NULL) {
3381 if (strcmp (gst_tag_name, GST_TAG_DATE_TIME) == 0) {
3382 guint year = atoi (value_utf8);
3385 g_value_init (&tag_value, GST_TYPE_DATE_TIME);
3386 g_value_take_boxed (&tag_value, gst_date_time_new_y (year));
3388 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
3389 guint id3v1_genre_id;
3390 const gchar *genre_str;
3392 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
3393 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
3394 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
3395 g_free (value_utf8);
3396 value_utf8 = g_strdup (genre_str);
3401 /* convert tag from string to other type if required */
3402 tag_type = gst_tag_get_type (gst_tag_name);
3403 g_value_init (&tag_value, tag_type);
3404 if (!gst_value_deserialize (&tag_value, value_utf8)) {
3405 GValue from_val = { 0, };
3407 g_value_init (&from_val, G_TYPE_STRING);
3408 g_value_set_string (&from_val, value_utf8);
3409 if (!g_value_transform (&from_val, &tag_value)) {
3410 GST_WARNING_OBJECT (demux,
3411 "Could not transform string tag to " "%s tag type %s",
3412 gst_tag_name, g_type_name (tag_type));
3413 g_value_unset (&tag_value);
3415 g_value_unset (&from_val);
3420 GST_DEBUG ("Setting metadata");
3421 g_value_init (&tag_value, G_TYPE_STRING);
3422 g_value_set_string (&tag_value, value_utf8);
3423 /* If we found a stereoscopic marker, look for StereoscopicLayout
3427 if (strncmp ("StereoscopicLayout", name_utf8,
3428 strlen (name_utf8)) == 0) {
3429 for (i = 0; i < G_N_ELEMENTS (stereoscopic_layout_map); i++) {
3430 if (g_str_equal (stereoscopic_layout_map[i].interleave_name,
3432 demux->asf_3D_mode =
3433 stereoscopic_layout_map[i].interleaving_type;
3434 GST_INFO ("find interleave type %u", demux->asf_3D_mode);
3438 GST_INFO_OBJECT (demux, "3d type is %u", demux->asf_3D_mode);
3440 demux->asf_3D_mode = GST_ASF_3D_NONE;
3441 GST_INFO_OBJECT (demux, "None 3d type");
3444 } else if (value_utf8 == NULL) {
3445 GST_WARNING ("Failed to convert string value to UTF8, skipping");
3447 GST_DEBUG ("Skipping empty string value for %s",
3448 GST_STR_NULL (gst_tag_name));
3450 g_free (value_utf8);
3453 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
3455 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
3456 GST_FIXME ("Unhandled byte array tag %s",
3457 GST_STR_NULL (gst_tag_name));
3460 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
3466 case ASF_DEMUX_DATA_TYPE_DWORD:{
3472 uint_val = GST_READ_UINT32_LE (value);
3474 /* this is the track number */
3475 g_value_init (&tag_value, G_TYPE_UINT);
3477 /* WM/Track counts from 0 */
3478 if (!strcmp (name_utf8, "WM/Track"))
3481 g_value_set_uint (&tag_value, uint_val);
3485 case ASF_DEMUX_DATA_TYPE_BOOL:{
3491 bool_val = GST_READ_UINT32_LE (value);
3493 if (strncmp ("Stereoscopic", name_utf8, strlen (name_utf8)) == 0) {
3495 GST_INFO_OBJECT (demux, "This is 3D contents");
3498 GST_INFO_OBJECT (demux, "This is not 3D contenst");
3506 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
3511 if (G_IS_VALUE (&tag_value)) {
3513 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
3515 /* WM/TrackNumber is more reliable than WM/Track, since the latter
3516 * is supposed to have a 0 base but is often wrongly written to start
3517 * from 1 as well, so prefer WM/TrackNumber when we have it: either
3518 * replace the value added earlier from WM/Track or put it first in
3519 * the list, so that it will get picked up by _get_uint() */
3520 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
3521 merge_mode = GST_TAG_MERGE_REPLACE;
3523 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
3526 GST_DEBUG ("Setting global metadata %s", name_utf8);
3527 gst_structure_set_value (demux->global_metadata, name_utf8,
3531 g_value_unset (&tag_value);
3540 gst_asf_demux_add_global_tags (demux, taglist);
3547 GST_WARNING ("Unexpected end of data parsing ext content desc object");
3548 gst_tag_list_unref (taglist);
3549 return GST_FLOW_OK; /* not really fatal */
3553 static GstStructure *
3554 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
3559 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
3561 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
3564 s = gst_caps_get_structure (demux->metadata, i);
3565 if (gst_structure_has_name (s, sname))
3569 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
3571 /* try lookup again; demux->metadata took ownership of the structure, so we
3572 * can't really make any assumptions about what happened to it, so we can't
3573 * just return it directly after appending it */
3574 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3577 static GstFlowReturn
3578 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
3581 guint16 blockcount, i;
3583 GST_INFO_OBJECT (demux, "object is a metadata object");
3585 /* Content Descriptor Count */
3587 goto not_enough_data;
3589 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3591 for (i = 0; i < blockcount; ++i) {
3593 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
3594 guint32 data_len, ival;
3597 if (size < (2 + 2 + 2 + 2 + 4))
3598 goto not_enough_data;
3600 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3601 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3602 name_len = gst_asf_demux_get_uint16 (&data, &size);
3603 data_type = gst_asf_demux_get_uint16 (&data, &size);
3604 data_len = gst_asf_demux_get_uint32 (&data, &size);
3606 if (size < name_len + data_len)
3607 goto not_enough_data;
3609 /* convert name to UTF-8 */
3610 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
3612 gst_asf_demux_skip_bytes (name_len, &data, &size);
3614 if (name_utf8 == NULL) {
3615 GST_WARNING ("Failed to convert value name to UTF8, skipping");
3616 gst_asf_demux_skip_bytes (data_len, &data, &size);
3620 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
3621 gst_asf_demux_skip_bytes (data_len, &data, &size);
3629 goto not_enough_data;
3632 ival = gst_asf_demux_get_uint32 (&data, &size);
3634 /* skip anything else there may be, just in case */
3635 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
3637 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3638 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
3642 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
3648 GST_WARNING ("Unexpected end of data parsing metadata object");
3649 return GST_FLOW_OK; /* not really fatal */
3653 static GstFlowReturn
3654 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
3656 GstFlowReturn ret = GST_FLOW_OK;
3657 guint32 i, num_objects;
3658 guint8 unknown G_GNUC_UNUSED;
3660 /* Get the rest of the header's header */
3661 if (size < (4 + 1 + 1))
3662 goto not_enough_data;
3664 num_objects = gst_asf_demux_get_uint32 (&data, &size);
3665 unknown = gst_asf_demux_get_uint8 (&data, &size);
3666 unknown = gst_asf_demux_get_uint8 (&data, &size);
3668 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
3669 demux->saw_file_header = FALSE;
3670 /* Loop through the header's objects, processing those */
3671 for (i = 0; i < num_objects; ++i) {
3672 GST_INFO_OBJECT (demux, "reading header part %u", i);
3673 ret = gst_asf_demux_process_object (demux, &data, &size);
3674 if (ret != GST_FLOW_OK) {
3675 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
3679 if (!demux->saw_file_header) {
3680 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3681 ("Header does not have mandatory FILE section"));
3682 return GST_FLOW_ERROR;
3689 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3690 ("short read parsing HEADER object"));
3691 return GST_FLOW_ERROR;
3695 static GstFlowReturn
3696 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
3698 guint64 creation_time G_GNUC_UNUSED;
3699 guint64 file_size G_GNUC_UNUSED;
3700 guint64 send_time G_GNUC_UNUSED;
3701 guint64 packets_count, play_time, preroll;
3702 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
3704 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
3705 goto not_enough_data;
3707 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
3708 file_size = gst_asf_demux_get_uint64 (&data, &size);
3709 creation_time = gst_asf_demux_get_uint64 (&data, &size);
3710 packets_count = gst_asf_demux_get_uint64 (&data, &size);
3711 play_time = gst_asf_demux_get_uint64 (&data, &size);
3712 send_time = gst_asf_demux_get_uint64 (&data, &size);
3713 preroll = gst_asf_demux_get_uint64 (&data, &size);
3714 flags = gst_asf_demux_get_uint32 (&data, &size);
3715 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3716 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3717 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3719 demux->broadcast = ! !(flags & 0x01);
3720 demux->seekable = ! !(flags & 0x02);
3722 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3723 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3724 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3726 if (demux->broadcast) {
3727 /* these fields are invalid if the broadcast flag is set */
3732 if (min_pktsize != max_pktsize)
3733 goto non_fixed_packet_size;
3735 demux->packet_size = max_pktsize;
3737 /* FIXME: do we need send_time as well? what is it? */
3738 if ((play_time * 100) >= (preroll * GST_MSECOND))
3739 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3741 demux->play_time = 0;
3743 demux->preroll = preroll * GST_MSECOND;
3745 /* initial latency */
3746 demux->latency = demux->preroll;
3748 if (demux->play_time == 0)
3749 demux->seekable = FALSE;
3751 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3752 GST_TIME_ARGS (demux->play_time));
3753 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3754 GST_TIME_ARGS (demux->preroll));
3756 if (demux->play_time > 0) {
3757 demux->segment.duration = demux->play_time;
3760 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3762 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3764 demux->saw_file_header = TRUE;
3769 non_fixed_packet_size:
3771 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3772 ("packet size must be fixed"));
3773 return GST_FLOW_ERROR;
3777 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3778 ("short read parsing FILE object"));
3779 return GST_FLOW_ERROR;
3783 /* Content Description Object */
3784 static GstFlowReturn
3785 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3789 const gchar *gst_tag;
3794 GST_TAG_TITLE, 0, NULL}, {
3795 GST_TAG_ARTIST, 0, NULL}, {
3796 GST_TAG_COPYRIGHT, 0, NULL}, {
3797 GST_TAG_DESCRIPTION, 0, NULL}, {
3798 GST_TAG_COMMENT, 0, NULL}
3800 GstTagList *taglist;
3801 GValue value = { 0 };
3805 GST_INFO_OBJECT (demux, "object is a comment");
3807 if (size < (2 + 2 + 2 + 2 + 2))
3808 goto not_enough_data;
3810 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3811 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3812 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3813 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3814 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3816 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3817 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3818 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3820 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3821 if (size < tags[i].val_length)
3822 goto not_enough_data;
3824 /* might be just '/0', '/0'... */
3825 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3826 /* convert to UTF-8 */
3827 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3828 "UTF-8", "UTF-16LE", &in, &out, NULL);
3830 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3833 /* parse metadata into taglist */
3834 taglist = gst_tag_list_new_empty ();
3835 g_value_init (&value, G_TYPE_STRING);
3836 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3837 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3838 g_value_set_string (&value, tags[i].val_utf8);
3839 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3840 tags[i].gst_tag, &value, NULL);
3843 g_value_unset (&value);
3845 gst_asf_demux_add_global_tags (demux, taglist);
3847 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3848 g_free (tags[i].val_utf8);
3854 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3855 "comment tag section %d, skipping comment object", i);
3856 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3857 g_free (tags[i].val_utf8);
3858 return GST_FLOW_OK; /* not really fatal */
3862 static GstFlowReturn
3863 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3866 guint16 num_streams, i;
3870 goto not_enough_data;
3872 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3874 GST_INFO ("object is a bitrate properties object with %u streams",
3877 if (size < (num_streams * (2 + 4)))
3878 goto not_enough_data;
3880 for (i = 0; i < num_streams; ++i) {
3884 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3885 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3887 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3888 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3889 stream = gst_asf_demux_get_stream (demux, stream_id);
3891 if (stream->pending_tags == NULL)
3892 stream->pending_tags = gst_tag_list_new_empty ();
3893 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_REPLACE,
3894 GST_TAG_BITRATE, bitrate, NULL);
3896 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3899 GST_WARNING ("stream id %u is too large", stream_id);
3907 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3908 return GST_FLOW_OK; /* not really fatal */
3912 static GstFlowReturn
3913 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3916 GstFlowReturn ret = GST_FLOW_OK;
3919 /* Get the rest of the header's header */
3920 if (size < (16 + 2 + 4))
3921 goto not_enough_data;
3923 /* skip GUID and two other bytes */
3924 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3925 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3927 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3929 /* FIXME: does data_size include the rest of the header that we have read? */
3930 if (hdr_size > size)
3931 goto not_enough_data;
3933 while (hdr_size > 0) {
3934 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3935 if (ret != GST_FLOW_OK)
3943 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3944 ("short read parsing extended header object"));
3945 return GST_FLOW_ERROR;
3949 static GstFlowReturn
3950 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3956 goto not_enough_data;
3958 if (demux->languages) {
3959 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3960 g_strfreev (demux->languages);
3961 demux->languages = NULL;
3962 demux->num_languages = 0;
3965 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3966 GST_LOG ("%u languages:", demux->num_languages);
3968 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3969 for (i = 0; i < demux->num_languages; ++i) {
3970 guint8 len, *lang_data = NULL;
3973 goto not_enough_data;
3974 len = gst_asf_demux_get_uint8 (&data, &size);
3975 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3978 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3981 /* truncate "en-us" etc. to just "en" */
3982 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3985 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3986 demux->languages[i] = utf8;
3989 goto not_enough_data;
3997 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3998 g_free (demux->languages);
3999 demux->languages = NULL;
4000 demux->num_languages = 0;
4001 return GST_FLOW_OK; /* not fatal */
4005 static GstFlowReturn
4006 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
4009 GstClockTime interval;
4012 if (size < (16 + 8 + 4 + 4))
4013 goto not_enough_data;
4016 gst_asf_demux_skip_bytes (16, &data, &size);
4017 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
4018 gst_asf_demux_skip_bytes (4, &data, &size);
4019 count = gst_asf_demux_get_uint32 (&data, &size);
4021 demux->sidx_interval = interval;
4022 demux->sidx_num_entries = count;
4023 g_free (demux->sidx_entries);
4024 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
4026 for (i = 0; i < count; ++i) {
4027 if (G_UNLIKELY (size < 6)) {
4028 /* adjust for broken files, to avoid having entries at the end
4029 * of the parsed index that point to time=0. Resulting in seeking to
4030 * the end of the file leading back to the beginning */
4031 demux->sidx_num_entries -= (count - i);
4034 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
4035 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
4036 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
4037 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
4038 demux->sidx_entries[i].count);
4041 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
4048 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
4049 return GST_FLOW_OK; /* not fatal */
4053 static GstFlowReturn
4054 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
4055 guint8 * data, guint64 size)
4060 if (size < 16 + 2 + (2 * 2))
4061 goto not_enough_data;
4063 gst_asf_demux_get_guid (&guid, &data, &size);
4064 num = gst_asf_demux_get_uint16 (&data, &size);
4067 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
4071 if (size < (num * sizeof (guint16)))
4072 goto not_enough_data;
4074 /* read mutually exclusive stream numbers */
4075 for (i = 0; i < num; ++i) {
4077 mes = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
4078 GST_LOG_OBJECT (demux, "mutually exclusive: stream %d", mes);
4080 demux->mut_ex_streams =
4081 g_slist_append (demux->mut_ex_streams, GINT_TO_POINTER (mes));
4090 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
4091 return GST_FLOW_OK; /* not absolutely fatal */
4096 gst_asf_demux_is_unknown_stream (GstASFDemux * demux, guint stream_num)
4098 return g_slist_find (demux->other_streams,
4099 GINT_TO_POINTER (stream_num)) == NULL;
4102 static GstFlowReturn
4103 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
4106 AsfStreamExtProps esp;
4107 AsfStream *stream = NULL;
4108 AsfObject stream_obj;
4109 guint16 stream_name_count;
4110 guint16 num_payload_ext;
4112 guint8 *stream_obj_data = NULL;
4115 guint i, stream_num;
4118 obj_size = (guint) size;
4120 esp.payload_extensions = NULL;
4123 goto not_enough_data;
4126 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
4127 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
4128 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
4129 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
4130 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
4131 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
4132 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
4133 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
4134 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
4135 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
4136 stream_num = gst_asf_demux_get_uint16 (&data, &size);
4137 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
4138 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
4139 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
4140 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
4142 GST_INFO ("start_time = %" GST_TIME_FORMAT,
4143 GST_TIME_ARGS (esp.start_time));
4144 GST_INFO ("end_time = %" GST_TIME_FORMAT,
4145 GST_TIME_ARGS (esp.end_time));
4146 GST_INFO ("flags = %08x", esp.flags);
4147 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
4148 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
4149 GST_INFO ("stream number = %u", stream_num);
4150 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
4151 (esp.lang_idx < demux->num_languages) ?
4152 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
4153 GST_INFO ("stream name count = %u", stream_name_count);
4155 /* read stream names */
4156 for (i = 0; i < stream_name_count; ++i) {
4157 guint16 stream_lang_idx G_GNUC_UNUSED;
4158 gchar *stream_name = NULL;
4161 goto not_enough_data;
4162 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
4163 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
4164 goto not_enough_data;
4165 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
4166 g_free (stream_name); /* TODO: store names in struct */
4169 /* read payload extension systems stuff */
4170 GST_LOG ("payload extension systems count = %u", num_payload_ext);
4172 if (num_payload_ext > 0)
4173 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
4175 for (i = 0; i < num_payload_ext; ++i) {
4176 AsfPayloadExtension ext;
4178 guint32 sys_info_len;
4180 if (size < 16 + 2 + 4)
4181 goto not_enough_data;
4183 gst_asf_demux_get_guid (&ext_guid, &data, &size);
4184 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
4185 ext.len = gst_asf_demux_get_uint16 (&data, &size);
4187 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
4188 GST_LOG ("payload systems info len = %u", sys_info_len);
4189 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
4190 goto not_enough_data;
4192 esp.payload_extensions[i] = ext;
4195 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
4197 /* there might be an optional STREAM_INFO object here now; if not, we
4198 * should have parsed the corresponding stream info object already (since
4199 * we are parsing the extended stream properties objects delayed) */
4201 stream = gst_asf_demux_get_stream (demux, stream_num);
4205 if (size < ASF_OBJECT_HEADER_SIZE)
4206 goto not_enough_data;
4208 /* get size of the stream object */
4209 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
4210 goto corrupted_stream;
4212 if (stream_obj.id != ASF_OBJ_STREAM)
4213 goto expected_stream_object;
4215 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
4216 stream_obj.size > (10 * 1024 * 1024))
4217 goto not_enough_data;
4219 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
4221 /* process this stream object later after all the other 'normal' ones
4222 * have been processed (since the others are more important/non-hidden) */
4223 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
4224 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
4225 goto not_enough_data;
4227 /* parse stream object */
4228 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
4229 g_free (stream_obj_data);
4234 stream->ext_props = esp;
4236 /* try to set the framerate */
4237 if (stream->is_video && stream->caps) {
4238 GValue framerate = { 0 };
4242 g_value_init (&framerate, GST_TYPE_FRACTION);
4244 num = GST_SECOND / 100;
4245 denom = esp.avg_time_per_frame;
4247 /* avoid division by 0, assume 25/1 framerate */
4248 denom = GST_SECOND / 2500;
4251 gst_value_set_fraction (&framerate, num, denom);
4253 stream->caps = gst_caps_make_writable (stream->caps);
4254 s = gst_caps_get_structure (stream->caps, 0);
4255 gst_structure_set_value (s, "framerate", &framerate);
4256 g_value_unset (&framerate);
4257 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
4258 num, denom, ((gdouble) num) / denom);
4261 /* add language info now if we have it */
4262 if (stream->ext_props.lang_idx < demux->num_languages) {
4263 if (stream->pending_tags == NULL)
4264 stream->pending_tags = gst_tag_list_new_empty ();
4265 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
4266 demux->languages[stream->ext_props.lang_idx]);
4267 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
4268 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
4271 } else if (gst_asf_demux_is_unknown_stream (demux, stream_num)) {
4272 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
4276 g_free (esp.payload_extensions);
4283 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
4284 g_free (esp.payload_extensions);
4285 return GST_FLOW_OK; /* not absolutely fatal */
4287 expected_stream_object:
4289 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
4290 "object: expected embedded stream object, but got %s object instead!",
4291 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
4292 g_free (esp.payload_extensions);
4293 return GST_FLOW_OK; /* not absolutely fatal */
4297 GST_WARNING_OBJECT (demux, "Corrupted stream");
4298 g_free (esp.payload_extensions);
4299 return GST_FLOW_ERROR;
4303 static const gchar *
4304 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
4308 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
4309 if (g_str_has_prefix (nick, "ASF_OBJ_"))
4310 nick += strlen ("ASF_OBJ_");
4312 if (demux->objpath == NULL) {
4313 demux->objpath = g_strdup (nick);
4317 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
4318 g_free (demux->objpath);
4319 demux->objpath = newpath;
4322 return (const gchar *) demux->objpath;
4326 gst_asf_demux_pop_obj (GstASFDemux * demux)
4330 if ((s = g_strrstr (demux->objpath, "/"))) {
4333 g_free (demux->objpath);
4334 demux->objpath = NULL;
4339 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
4344 /* Parse the queued extended stream property objects and add the info
4345 * to the existing streams or add the new embedded streams, but without
4346 * activating them yet */
4347 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
4348 g_slist_length (demux->ext_stream_props));
4350 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
4351 GstBuffer *buf = GST_BUFFER (l->data);
4354 gst_buffer_map (buf, &map, GST_MAP_READ);
4356 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
4357 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
4358 gst_buffer_unmap (buf, &map);
4359 gst_buffer_unref (buf);
4361 g_slist_free (demux->ext_stream_props);
4362 demux->ext_stream_props = NULL;
4367 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
4371 for (i = 0; i < demux->num_streams; ++i) {
4376 stream = &demux->stream[i];
4378 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
4380 if (stream->active) {
4381 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
4386 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
4389 /* check for each mutual exclusion whether it affects this stream */
4390 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4391 if (*mes == stream->id) {
4392 /* if yes, check if we've already added streams that are mutually
4393 * exclusive with the stream we're about to add */
4394 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4395 for (j = 0; j < demux->num_streams; ++j) {
4396 /* if the broadcast flag is set, assume the hidden streams aren't
4397 * actually streamed and hide them (or playbin won't work right),
4398 * otherwise assume their data is available */
4399 if (demux->stream[j].id == *mes && demux->broadcast) {
4401 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
4402 "mutually exclusive with already existing stream ID %d, "
4403 "hiding stream", stream->id, demux->stream[j].id);
4415 /* FIXME: we should do stream activation based on preroll data in
4416 * streaming mode too */
4417 if (demux->streaming && !is_hidden)
4418 gst_asf_demux_activate_stream (demux, stream);
4423 static GstFlowReturn
4424 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
4427 GstFlowReturn ret = GST_FLOW_OK;
4429 guint64 obj_data_size;
4431 if (*p_size < ASF_OBJECT_HEADER_SIZE)
4432 return ASF_FLOW_NEED_MORE_DATA;
4434 if (!asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj,
4436 return GST_FLOW_ERROR;
4437 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
4439 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
4441 if (*p_size < obj_data_size)
4442 return ASF_FLOW_NEED_MORE_DATA;
4444 gst_asf_demux_push_obj (demux, obj.id);
4446 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
4449 case ASF_OBJ_STREAM:
4450 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
4454 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
4456 case ASF_OBJ_HEADER:
4457 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
4459 case ASF_OBJ_COMMENT:
4460 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
4463 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
4465 case ASF_OBJ_BITRATE_PROPS:
4467 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
4470 case ASF_OBJ_EXT_CONTENT_DESC:
4472 gst_asf_demux_process_ext_content_desc (demux, *p_data,
4475 case ASF_OBJ_METADATA_OBJECT:
4476 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
4478 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
4481 /* process these later, we might not have parsed the corresponding
4482 * stream object yet */
4483 GST_LOG ("%s: queued for later parsing", demux->objpath);
4484 buf = gst_buffer_new_and_alloc (obj_data_size);
4485 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
4486 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
4490 case ASF_OBJ_LANGUAGE_LIST:
4491 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
4493 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
4494 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
4497 case ASF_OBJ_SIMPLE_INDEX:
4498 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
4500 case ASF_OBJ_CONTENT_ENCRYPTION:
4501 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
4502 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
4503 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
4504 goto error_encrypted;
4505 case ASF_OBJ_CONCEAL_NONE:
4507 case ASF_OBJ_UNDEFINED:
4508 case ASF_OBJ_CODEC_COMMENT:
4510 case ASF_OBJ_PADDING:
4511 case ASF_OBJ_BITRATE_MUTEX:
4512 case ASF_OBJ_COMPATIBILITY:
4513 case ASF_OBJ_INDEX_PLACEHOLDER:
4514 case ASF_OBJ_INDEX_PARAMETERS:
4515 case ASF_OBJ_STREAM_PRIORITIZATION:
4516 case ASF_OBJ_SCRIPT_COMMAND:
4517 case ASF_OBJ_METADATA_LIBRARY_OBJECT:
4519 /* Unknown/unhandled object, skip it and hope for the best */
4520 GST_INFO ("%s: skipping object", demux->objpath);
4525 /* this can't fail, we checked the number of bytes available before */
4526 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
4528 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
4530 gst_asf_demux_pop_obj (demux);
4537 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
4538 return GST_FLOW_ERROR;
4543 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
4544 GstBuffer ** p_buffer)
4546 GstBuffer *descrambled_buffer;
4547 GstBuffer *scrambled_buffer;
4548 GstBuffer *sub_buffer;
4555 /* descrambled_buffer is initialised in the first iteration */
4556 descrambled_buffer = NULL;
4557 scrambled_buffer = *p_buffer;
4559 if (gst_buffer_get_size (scrambled_buffer) <
4560 stream->ds_packet_size * stream->span)
4563 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
4564 offset += stream->ds_chunk_size) {
4565 off = offset / stream->ds_chunk_size;
4566 row = off / stream->span;
4567 col = off % stream->span;
4568 idx = row + col * stream->ds_packet_size / stream->ds_chunk_size;
4569 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
4570 col, off, stream->ds_chunk_size);
4571 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
4572 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
4573 stream->span, stream->ds_packet_size);
4574 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
4575 gst_buffer_get_size (scrambled_buffer));
4577 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_MEMORY,
4578 idx * stream->ds_chunk_size, stream->ds_chunk_size);
4580 descrambled_buffer = sub_buffer;
4582 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
4586 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
4587 GST_BUFFER_TIMESTAMP (scrambled_buffer);
4588 GST_BUFFER_DURATION (descrambled_buffer) =
4589 GST_BUFFER_DURATION (scrambled_buffer);
4590 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
4591 GST_BUFFER_OFFSET_END (descrambled_buffer) =
4592 GST_BUFFER_OFFSET_END (scrambled_buffer);
4594 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
4596 gst_buffer_unref (scrambled_buffer);
4597 *p_buffer = descrambled_buffer;
4601 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
4603 GstASFDemux *demux = GST_ASF_DEMUX (element);
4606 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
4608 for (i = 0; i < demux->num_streams; ++i) {
4609 gst_event_ref (event);
4610 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
4611 GST_OBJECT_CAST (element), event)) {
4612 gst_event_unref (event);
4617 gst_event_unref (event);
4621 /* takes ownership of the passed event */
4623 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
4625 gboolean ret = TRUE;
4628 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
4629 GST_EVENT_TYPE_NAME (event));
4631 for (i = 0; i < demux->num_streams; ++i) {
4632 gst_event_ref (event);
4633 ret &= gst_pad_push_event (demux->stream[i].pad, event);
4635 gst_event_unref (event);
4640 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
4644 gboolean res = FALSE;
4646 demux = GST_ASF_DEMUX (parent);
4648 GST_DEBUG ("handling %s query",
4649 gst_query_type_get_name (GST_QUERY_TYPE (query)));
4651 switch (GST_QUERY_TYPE (query)) {
4652 case GST_QUERY_DURATION:
4656 gst_query_parse_duration (query, &format, NULL);
4658 if (format != GST_FORMAT_TIME) {
4659 GST_LOG ("only support duration queries in TIME format");
4663 res = gst_pad_query_default (pad, parent, query);
4665 GST_OBJECT_LOCK (demux);
4667 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
4668 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
4669 GST_TIME_ARGS (demux->segment.duration));
4671 gst_query_set_duration (query, GST_FORMAT_TIME,
4672 demux->segment.duration);
4676 GST_LOG ("duration not known yet");
4679 GST_OBJECT_UNLOCK (demux);
4684 case GST_QUERY_POSITION:{
4687 gst_query_parse_position (query, &format, NULL);
4689 if (format != GST_FORMAT_TIME) {
4690 GST_LOG ("only support position queries in TIME format");
4694 GST_OBJECT_LOCK (demux);
4696 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
4697 GST_LOG ("returning position: %" GST_TIME_FORMAT,
4698 GST_TIME_ARGS (demux->segment.position));
4700 gst_query_set_position (query, GST_FORMAT_TIME,
4701 demux->segment.position);
4705 GST_LOG ("position not known yet");
4708 GST_OBJECT_UNLOCK (demux);
4712 case GST_QUERY_SEEKING:{
4715 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
4716 if (format == GST_FORMAT_TIME) {
4719 GST_OBJECT_LOCK (demux);
4720 duration = demux->segment.duration;
4721 GST_OBJECT_UNLOCK (demux);
4723 if (!demux->streaming || !demux->seekable) {
4724 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
4731 /* try upstream first in TIME */
4732 res = gst_pad_query_default (pad, parent, query);
4734 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
4735 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4736 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4737 /* if no luck, maybe in BYTES */
4738 if (!seekable || fmt != GST_FORMAT_TIME) {
4741 q = gst_query_new_seeking (GST_FORMAT_BYTES);
4742 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
4743 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
4744 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4745 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4746 if (fmt != GST_FORMAT_BYTES)
4749 gst_query_unref (q);
4750 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4756 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4760 case GST_QUERY_LATENCY:
4763 GstClockTime min, max;
4765 /* preroll delay does not matter in non-live pipeline,
4766 * but we might end up in a live (rtsp) one ... */
4769 res = gst_pad_query_default (pad, parent, query);
4773 gst_query_parse_latency (query, &live, &min, &max);
4775 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4776 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4777 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4779 GST_OBJECT_LOCK (demux);
4780 min += demux->latency;
4782 max += demux->latency;
4783 GST_OBJECT_UNLOCK (demux);
4785 gst_query_set_latency (query, live, min, max);
4788 case GST_QUERY_SEGMENT:
4793 format = demux->segment.format;
4796 gst_segment_to_stream_time (&demux->segment, format,
4797 demux->segment.start);
4798 if ((stop = demux->segment.stop) == -1)
4799 stop = demux->segment.duration;
4801 stop = gst_segment_to_stream_time (&demux->segment, format, stop);
4803 gst_query_set_segment (query, demux->segment.rate, format, start, stop);
4808 res = gst_pad_query_default (pad, parent, query);
4815 static GstStateChangeReturn
4816 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4818 GstASFDemux *demux = GST_ASF_DEMUX (element);
4819 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4821 switch (transition) {
4822 case GST_STATE_CHANGE_NULL_TO_READY:{
4823 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4824 demux->need_newsegment = TRUE;
4825 demux->segment_running = FALSE;
4826 demux->keyunit_sync = FALSE;
4827 demux->accurate = FALSE;
4828 demux->adapter = gst_adapter_new ();
4829 demux->metadata = gst_caps_new_empty ();
4830 demux->global_metadata = gst_structure_new_empty ("metadata");
4831 demux->data_size = 0;
4832 demux->data_offset = 0;
4833 demux->index_offset = 0;
4834 demux->base_offset = 0;
4835 demux->flowcombiner = gst_flow_combiner_new ();
4843 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4844 if (ret == GST_STATE_CHANGE_FAILURE)
4847 switch (transition) {
4848 case GST_STATE_CHANGE_PAUSED_TO_READY:
4849 gst_asf_demux_reset (demux, FALSE);
4852 case GST_STATE_CHANGE_READY_TO_NULL:
4853 gst_asf_demux_reset (demux, FALSE);
4854 gst_flow_combiner_free (demux->flowcombiner);
4855 demux->flowcombiner = NULL;