1 /* GStreamer ASF/WMV/WMA demuxer
2 * Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) 2006-2009 Tim-Philipp Müller <tim centricular net>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
24 * stop if at end of segment if != end of file, ie. demux->segment.stop
26 * - fix packet parsing:
27 * there's something wrong with timestamps for packets with keyframes,
35 #include <gst/gstutils.h>
36 #include <gst/base/gstbytereader.h>
37 #include <gst/base/gsttypefindhelper.h>
38 #include <gst/riff/riff-media.h>
39 #include <gst/tag/tag.h>
40 #include <gst/gst-i18n-plugin.h>
41 #include <gst/video/video.h>
46 #include "gstasfdemux.h"
47 #include "asfheaders.h"
48 #include "asfpacket.h"
50 static GstStaticPadTemplate gst_asf_demux_sink_template =
51 GST_STATIC_PAD_TEMPLATE ("sink",
54 GST_STATIC_CAPS ("video/x-ms-asf")
57 static GstStaticPadTemplate audio_src_template =
58 GST_STATIC_PAD_TEMPLATE ("audio_%u",
63 static GstStaticPadTemplate video_src_template =
64 GST_STATIC_PAD_TEMPLATE ("video_%u",
69 /* size of an ASF object header, ie. GUID (16 bytes) + object size (8 bytes) */
70 #define ASF_OBJECT_HEADER_SIZE (16+8)
72 /* FIXME: get rid of this */
73 /* abuse this GstFlowReturn enum for internal usage */
74 #define ASF_FLOW_NEED_MORE_DATA 99
76 #define gst_asf_get_flow_name(flow) \
77 (flow == ASF_FLOW_NEED_MORE_DATA) ? \
78 "need-more-data" : gst_flow_get_name (flow)
80 GST_DEBUG_CATEGORY (asfdemux_dbg);
82 static GstStateChangeReturn gst_asf_demux_change_state (GstElement * element,
83 GstStateChange transition);
84 static gboolean gst_asf_demux_element_send_event (GstElement * element,
86 static gboolean gst_asf_demux_send_event_unlocked (GstASFDemux * demux,
88 static gboolean gst_asf_demux_handle_src_query (GstPad * pad,
89 GstObject * parent, GstQuery * query);
90 static GstFlowReturn gst_asf_demux_chain (GstPad * pad, GstObject * parent,
92 static gboolean gst_asf_demux_sink_event (GstPad * pad, GstObject * parent,
94 static GstFlowReturn gst_asf_demux_process_object (GstASFDemux * demux,
95 guint8 ** p_data, guint64 * p_size);
96 static gboolean gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent);
97 static gboolean gst_asf_demux_activate_mode (GstPad * sinkpad,
98 GstObject * parent, GstPadMode mode, gboolean active);
99 static void gst_asf_demux_loop (GstASFDemux * demux);
101 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux);
102 static gboolean gst_asf_demux_pull_headers (GstASFDemux * demux,
103 GstFlowReturn * pflow);
104 static void gst_asf_demux_pull_indices (GstASFDemux * demux);
105 static void gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * asf);
107 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data);
108 static void gst_asf_demux_descramble_buffer (GstASFDemux * demux,
109 AsfStream * stream, GstBuffer ** p_buffer);
110 static void gst_asf_demux_activate_stream (GstASFDemux * demux,
112 static GstStructure *gst_asf_demux_get_metadata_for_stream (GstASFDemux * d,
114 static GstFlowReturn gst_asf_demux_push_complete_payloads (GstASFDemux * demux,
117 #define gst_asf_demux_parent_class parent_class
118 G_DEFINE_TYPE (GstASFDemux, gst_asf_demux, GST_TYPE_ELEMENT);
121 gst_asf_demux_class_init (GstASFDemuxClass * klass)
123 GstElementClass *gstelement_class;
125 gstelement_class = (GstElementClass *) klass;
127 gst_element_class_set_static_metadata (gstelement_class, "ASF Demuxer",
129 "Demultiplexes ASF Streams", "Owen Fraser-Green <owen@discobabe.net>");
131 gst_element_class_add_pad_template (gstelement_class,
132 gst_static_pad_template_get (&audio_src_template));
133 gst_element_class_add_pad_template (gstelement_class,
134 gst_static_pad_template_get (&video_src_template));
135 gst_element_class_add_pad_template (gstelement_class,
136 gst_static_pad_template_get (&gst_asf_demux_sink_template));
138 gstelement_class->change_state =
139 GST_DEBUG_FUNCPTR (gst_asf_demux_change_state);
140 gstelement_class->send_event =
141 GST_DEBUG_FUNCPTR (gst_asf_demux_element_send_event);
145 gst_asf_demux_free_stream (GstASFDemux * demux, AsfStream * stream)
147 gst_caps_replace (&stream->caps, NULL);
148 if (stream->pending_tags) {
149 gst_tag_list_unref (stream->pending_tags);
150 stream->pending_tags = NULL;
152 if (stream->streamheader) {
153 gst_buffer_unref (stream->streamheader);
154 stream->streamheader = NULL;
157 if (stream->active) {
158 gst_element_remove_pad (GST_ELEMENT_CAST (demux), stream->pad);
159 gst_flow_combiner_remove_pad (demux->flowcombiner, stream->pad);
161 gst_object_unref (stream->pad);
165 if (stream->payloads) {
166 while (stream->payloads->len > 0) {
170 last = stream->payloads->len - 1;
171 payload = &g_array_index (stream->payloads, AsfPayload, last);
172 gst_buffer_replace (&payload->buf, NULL);
173 g_array_remove_index (stream->payloads, last);
175 g_array_free (stream->payloads, TRUE);
176 stream->payloads = NULL;
178 if (stream->ext_props.valid) {
179 g_free (stream->ext_props.payload_extensions);
180 stream->ext_props.payload_extensions = NULL;
185 gst_asf_demux_reset (GstASFDemux * demux, gboolean chain_reset)
187 GST_LOG_OBJECT (demux, "resetting");
189 gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
190 demux->segment_running = FALSE;
191 if (demux->adapter && !chain_reset) {
192 gst_adapter_clear (demux->adapter);
193 g_object_unref (demux->adapter);
194 demux->adapter = NULL;
196 if (demux->taglist) {
197 gst_tag_list_unref (demux->taglist);
198 demux->taglist = NULL;
200 if (demux->metadata) {
201 gst_caps_unref (demux->metadata);
202 demux->metadata = NULL;
204 if (demux->global_metadata) {
205 gst_structure_free (demux->global_metadata);
206 demux->global_metadata = NULL;
208 if (demux->mut_ex_streams) {
209 g_slist_free (demux->mut_ex_streams);
210 demux->mut_ex_streams = NULL;
213 demux->state = GST_ASF_DEMUX_STATE_HEADER;
214 g_free (demux->objpath);
215 demux->objpath = NULL;
216 g_strfreev (demux->languages);
217 demux->languages = NULL;
218 demux->num_languages = 0;
219 g_slist_foreach (demux->ext_stream_props, (GFunc) gst_mini_object_unref,
221 g_slist_free (demux->ext_stream_props);
222 demux->ext_stream_props = NULL;
224 while (demux->old_num_streams > 0) {
225 gst_asf_demux_free_stream (demux,
226 &demux->old_stream[demux->old_num_streams - 1]);
227 --demux->old_num_streams;
229 memset (demux->old_stream, 0, sizeof (demux->old_stream));
230 demux->old_num_streams = 0;
232 /* when resetting for a new chained asf, we don't want to remove the pads
233 * before adding the new ones */
235 memcpy (demux->old_stream, demux->stream, sizeof (demux->stream));
236 demux->old_num_streams = demux->num_streams;
237 demux->num_streams = 0;
240 while (demux->num_streams > 0) {
241 gst_asf_demux_free_stream (demux, &demux->stream[demux->num_streams - 1]);
242 --demux->num_streams;
244 memset (demux->stream, 0, sizeof (demux->stream));
246 /* do not remove those for not adding pads with same name */
247 demux->num_audio_streams = 0;
248 demux->num_video_streams = 0;
249 demux->have_group_id = FALSE;
250 demux->group_id = G_MAXUINT;
252 demux->num_streams = 0;
253 demux->activated_streams = FALSE;
254 demux->first_ts = GST_CLOCK_TIME_NONE;
255 demux->segment_ts = GST_CLOCK_TIME_NONE;
258 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
259 demux->state = GST_ASF_DEMUX_STATE_HEADER;
260 demux->seekable = FALSE;
261 demux->broadcast = FALSE;
262 demux->sidx_interval = 0;
263 demux->sidx_num_entries = 0;
264 g_free (demux->sidx_entries);
265 demux->sidx_entries = NULL;
267 demux->speed_packets = 1;
269 demux->asf_3D_mode = GST_ASF_3D_NONE;
272 GST_LOG_OBJECT (demux, "Restarting");
273 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
274 demux->need_newsegment = TRUE;
275 demux->segment_seqnum = 0;
276 demux->segment_running = FALSE;
277 demux->keyunit_sync = FALSE;
278 demux->metadata = gst_caps_new_empty ();
279 demux->global_metadata = gst_structure_new_empty ("metadata");
280 demux->data_size = 0;
281 demux->data_offset = 0;
282 demux->index_offset = 0;
284 demux->base_offset = 0;
287 g_slist_free (demux->other_streams);
288 demux->other_streams = NULL;
292 gst_asf_demux_init (GstASFDemux * demux)
295 gst_pad_new_from_static_template (&gst_asf_demux_sink_template, "sink");
296 gst_pad_set_chain_function (demux->sinkpad,
297 GST_DEBUG_FUNCPTR (gst_asf_demux_chain));
298 gst_pad_set_event_function (demux->sinkpad,
299 GST_DEBUG_FUNCPTR (gst_asf_demux_sink_event));
300 gst_pad_set_activate_function (demux->sinkpad,
301 GST_DEBUG_FUNCPTR (gst_asf_demux_activate));
302 gst_pad_set_activatemode_function (demux->sinkpad,
303 GST_DEBUG_FUNCPTR (gst_asf_demux_activate_mode));
304 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
306 /* set initial state */
307 gst_asf_demux_reset (demux, FALSE);
311 gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent)
316 query = gst_query_new_scheduling ();
318 if (!gst_pad_peer_query (sinkpad, query)) {
319 gst_query_unref (query);
323 pull_mode = gst_query_has_scheduling_mode_with_flags (query,
324 GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
325 gst_query_unref (query);
330 GST_DEBUG_OBJECT (sinkpad, "activating pull");
331 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
335 GST_DEBUG_OBJECT (sinkpad, "activating push");
336 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
341 gst_asf_demux_activate_mode (GstPad * sinkpad, GstObject * parent,
342 GstPadMode mode, gboolean active)
347 demux = GST_ASF_DEMUX (parent);
350 case GST_PAD_MODE_PUSH:
351 demux->state = GST_ASF_DEMUX_STATE_HEADER;
352 demux->streaming = TRUE;
355 case GST_PAD_MODE_PULL:
357 demux->state = GST_ASF_DEMUX_STATE_HEADER;
358 demux->streaming = FALSE;
360 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_asf_demux_loop,
363 res = gst_pad_stop_task (sinkpad);
374 gst_asf_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
379 demux = GST_ASF_DEMUX (parent);
381 GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
382 switch (GST_EVENT_TYPE (event)) {
383 case GST_EVENT_SEGMENT:{
384 const GstSegment *segment;
386 gst_event_parse_segment (event, &segment);
388 if (segment->format == GST_FORMAT_BYTES) {
389 if (demux->packet_size && segment->start > demux->data_offset)
390 demux->packet = (segment->start - demux->data_offset) /
394 } else if (segment->format == GST_FORMAT_TIME) {
395 /* do not know packet position, not really a problem */
398 GST_WARNING_OBJECT (demux, "unsupported newsegment format, ignoring");
399 gst_event_unref (event);
403 /* record upstream segment for interpolation */
404 if (segment->format != demux->in_segment.format)
405 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
406 gst_segment_copy_into (segment, &demux->in_segment);
408 /* in either case, clear some state and generate newsegment later on */
409 GST_OBJECT_LOCK (demux);
410 demux->segment_ts = GST_CLOCK_TIME_NONE;
411 demux->in_gap = GST_CLOCK_TIME_NONE;
412 demux->need_newsegment = TRUE;
413 demux->segment_seqnum = gst_event_get_seqnum (event);
414 gst_asf_demux_reset_stream_state_after_discont (demux);
415 GST_OBJECT_UNLOCK (demux);
417 gst_event_unref (event);
423 if (demux->state == GST_ASF_DEMUX_STATE_HEADER) {
424 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
425 (_("This stream contains no data.")),
426 ("got eos and didn't receive a complete header object"));
429 flow = gst_asf_demux_push_complete_payloads (demux, TRUE);
430 if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
431 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
432 (_("Internal data stream error.")),
433 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
437 GST_OBJECT_LOCK (demux);
438 gst_adapter_clear (demux->adapter);
439 GST_OBJECT_UNLOCK (demux);
440 gst_asf_demux_send_event_unlocked (demux, event);
444 case GST_EVENT_FLUSH_STOP:
445 GST_OBJECT_LOCK (demux);
446 gst_asf_demux_reset_stream_state_after_discont (demux);
447 GST_OBJECT_UNLOCK (demux);
448 gst_asf_demux_send_event_unlocked (demux, event);
449 /* upon activation, latency is no longer introduced, e.g. after seek */
450 if (demux->activated_streams)
455 ret = gst_pad_event_default (pad, parent, event);
463 gst_asf_demux_seek_index_lookup (GstASFDemux * demux, guint * packet,
464 GstClockTime seek_time, GstClockTime * p_idx_time, guint * speed,
465 gboolean next, gboolean * eos)
467 GstClockTime idx_time;
473 if (G_UNLIKELY (demux->sidx_num_entries == 0 || demux->sidx_interval == 0))
476 idx = (guint) ((seek_time + demux->preroll) / demux->sidx_interval);
479 /* if we want the next keyframe, we have to go forward till we find
480 a different packet number */
482 if (idx >= demux->sidx_num_entries - 1) {
483 /* If we get here, we're asking for next keyframe after the last one. There isn't one. */
488 for (idx2 = idx + 1; idx2 < demux->sidx_num_entries; ++idx2) {
489 if (demux->sidx_entries[idx].packet != demux->sidx_entries[idx2].packet) {
496 if (G_UNLIKELY (idx >= demux->sidx_num_entries)) {
502 *packet = demux->sidx_entries[idx].packet;
504 *speed = demux->sidx_entries[idx].count;
506 /* so we get closer to the actual time of the packet ... actually, let's not
507 * do this, since we throw away superfluous payloads before the seek position
508 * anyway; this way, our key unit seek 'snap resolution' is a bit better
509 * (ie. same as index resolution) */
511 while (idx > 0 && demux->sidx_entries[idx-1] == demux->sidx_entries[idx])
515 idx_time = demux->sidx_interval * idx;
516 if (G_LIKELY (idx_time >= demux->preroll))
517 idx_time -= demux->preroll;
519 GST_DEBUG_OBJECT (demux, "%" GST_TIME_FORMAT " => packet %u at %"
520 GST_TIME_FORMAT, GST_TIME_ARGS (seek_time), *packet,
521 GST_TIME_ARGS (idx_time));
523 if (G_LIKELY (p_idx_time))
524 *p_idx_time = idx_time;
530 gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * demux)
534 gst_adapter_clear (demux->adapter);
536 GST_DEBUG_OBJECT (demux, "reset stream state");
538 gst_flow_combiner_reset (demux->flowcombiner);
539 for (n = 0; n < demux->num_streams; n++) {
540 demux->stream[n].discont = TRUE;
541 demux->stream[n].first_buffer = TRUE;
543 while (demux->stream[n].payloads->len > 0) {
547 last = demux->stream[n].payloads->len - 1;
548 payload = &g_array_index (demux->stream[n].payloads, AsfPayload, last);
549 gst_buffer_replace (&payload->buf, NULL);
550 g_array_remove_index (demux->stream[n].payloads, last);
556 gst_asf_demux_mark_discont (GstASFDemux * demux)
560 GST_DEBUG_OBJECT (demux, "Mark stream discont");
562 for (n = 0; n < demux->num_streams; n++)
563 demux->stream[n].discont = TRUE;
566 /* do a seek in push based mode */
568 gst_asf_demux_handle_seek_push (GstASFDemux * demux, GstEvent * event)
573 GstSeekType cur_type, stop_type;
577 GstEvent *byte_event;
579 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
582 stop_type = GST_SEEK_TYPE_NONE;
585 GST_DEBUG_OBJECT (demux, "seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (cur));
587 /* determine packet, by index or by estimation */
588 if (!gst_asf_demux_seek_index_lookup (demux, &packet, cur, NULL, NULL, FALSE,
591 (guint) gst_util_uint64_scale (demux->num_packets, cur,
595 if (packet > demux->num_packets) {
596 GST_DEBUG_OBJECT (demux, "could not determine packet to seek to, "
601 GST_DEBUG_OBJECT (demux, "seeking to packet %d", packet);
603 cur = demux->data_offset + ((guint64) packet * demux->packet_size);
605 GST_DEBUG_OBJECT (demux, "Pushing BYTE seek rate %g, "
606 "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT, rate, cur, stop);
607 /* BYTE seek event */
608 byte_event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type,
609 cur, stop_type, stop);
610 gst_event_set_seqnum (byte_event, gst_event_get_seqnum (event));
611 res = gst_pad_push_event (demux->sinkpad, byte_event);
617 gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
619 GstClockTime idx_time;
622 GstSeekType cur_type, stop_type;
624 gboolean only_need_update;
625 gboolean accurate, after, before, next;
630 guint packet, speed_count = 1;
635 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
638 if (G_UNLIKELY (format != GST_FORMAT_TIME)) {
639 GST_LOG_OBJECT (demux, "seeking is only supported in TIME format");
643 /* upstream might handle TIME seek, e.g. mms or rtsp, or not, e.g. http,
644 * so first try to let it handle the seek event. */
645 if (gst_pad_push_event (demux->sinkpad, gst_event_ref (event)))
648 if (G_UNLIKELY (demux->seekable == FALSE || demux->packet_size == 0 ||
649 demux->num_packets == 0 || demux->play_time == 0)) {
650 GST_LOG_OBJECT (demux, "stream is not seekable");
654 if (G_UNLIKELY (!demux->activated_streams)) {
655 GST_LOG_OBJECT (demux, "streams not yet activated, ignoring seek");
659 if (G_UNLIKELY (rate <= 0.0)) {
660 GST_LOG_OBJECT (demux, "backward playback is not supported yet");
664 seqnum = gst_event_get_seqnum (event);
665 flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
666 accurate = ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
667 demux->keyunit_sync =
668 ((flags & GST_SEEK_FLAG_KEY_UNIT) == GST_SEEK_FLAG_KEY_UNIT);
669 after = ((flags & GST_SEEK_FLAG_SNAP_AFTER) == GST_SEEK_FLAG_SNAP_AFTER);
670 before = ((flags & GST_SEEK_FLAG_SNAP_BEFORE) == GST_SEEK_FLAG_SNAP_BEFORE);
671 next = after && !before;
673 if (G_UNLIKELY (demux->streaming)) {
674 /* support it safely needs more segment handling, e.g. closing etc */
676 GST_LOG_OBJECT (demux, "streaming; non-flushing seek not supported");
679 /* we can (re)construct the start later on, but not the end */
680 if (stop_type != GST_SEEK_TYPE_NONE &&
681 (stop_type != GST_SEEK_TYPE_SET || GST_CLOCK_TIME_IS_VALID (stop))) {
682 GST_LOG_OBJECT (demux, "streaming; end position must be NONE");
685 return gst_asf_demux_handle_seek_push (demux, event);
688 /* unlock the streaming thread */
689 if (G_LIKELY (flush)) {
690 fevent = gst_event_new_flush_start ();
692 gst_event_set_seqnum (fevent, seqnum);
693 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
694 gst_asf_demux_send_event_unlocked (demux, fevent);
696 gst_pad_pause_task (demux->sinkpad);
699 /* grab the stream lock so that streaming cannot continue, for
700 * non flushing seeks when the element is in PAUSED this could block
702 GST_PAD_STREAM_LOCK (demux->sinkpad);
704 /* we now can stop flushing, since we have the stream lock now */
705 fevent = gst_event_new_flush_stop (TRUE);
706 gst_event_set_seqnum (fevent, seqnum);
707 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
709 if (G_LIKELY (flush))
710 gst_asf_demux_send_event_unlocked (demux, fevent);
712 gst_event_unref (fevent);
714 /* operating on copy of segment until we know the seek worked */
715 segment = demux->segment;
717 if (G_UNLIKELY (demux->segment_running && !flush)) {
718 GstSegment newsegment;
721 /* create the segment event to close the current segment */
722 gst_segment_copy_into (&segment, &newsegment);
723 newseg = gst_event_new_segment (&newsegment);
724 gst_event_set_seqnum (newseg, seqnum);
726 gst_asf_demux_send_event_unlocked (demux, newseg);
729 gst_segment_do_seek (&segment, rate, format, flags, cur_type,
730 cur, stop_type, stop, &only_need_update);
732 GST_DEBUG_OBJECT (demux, "seeking to time %" GST_TIME_FORMAT ", segment: "
733 "%" GST_SEGMENT_FORMAT, GST_TIME_ARGS (segment.start), &segment);
735 if (cur_type != GST_SEEK_TYPE_SET)
736 seek_time = segment.start;
740 /* FIXME: should check the KEY_UNIT flag; need to adjust position to
741 * real start of data and segment_start to indexed time for key unit seek*/
742 if (G_UNLIKELY (!gst_asf_demux_seek_index_lookup (demux, &packet, seek_time,
743 &idx_time, &speed_count, next, &eos))) {
747 demux->packet = demux->num_packets;
751 /* First try to query our source to see if it can convert for us. This is
752 the case when our source is an mms stream, notice that in this case
753 gstmms will do a time based seek to get the byte offset, this is not a
754 problem as the seek to this offset needs to happen anway. */
755 if (gst_pad_peer_query_convert (demux->sinkpad, GST_FORMAT_TIME, seek_time,
756 GST_FORMAT_BYTES, &offset)) {
757 packet = (offset - demux->data_offset) / demux->packet_size;
758 GST_LOG_OBJECT (demux, "convert %" GST_TIME_FORMAT
759 " to bytes query result: %" G_GINT64_FORMAT ", data_ofset: %"
760 G_GINT64_FORMAT ", packet_size: %u," " resulting packet: %u\n",
761 GST_TIME_ARGS (seek_time), offset, demux->data_offset,
762 demux->packet_size, packet);
764 /* FIXME: For streams containing video, seek to an earlier position in
765 * the hope of hitting a keyframe and let the sinks throw away the stuff
766 * before the segment start. For audio-only this is unnecessary as every
768 if (flush && (accurate || (demux->keyunit_sync && !next))
769 && demux->num_video_streams > 0) {
770 seek_time -= 5 * GST_SECOND;
775 packet = (guint) gst_util_uint64_scale (demux->num_packets,
776 seek_time, demux->play_time);
778 if (packet > demux->num_packets)
779 packet = demux->num_packets;
782 if (G_LIKELY (demux->keyunit_sync)) {
783 GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
784 GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
785 GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
786 segment.start = idx_time;
787 segment.position = idx_time;
788 segment.time = idx_time;
792 GST_DEBUG_OBJECT (demux, "seeking to packet %u (%d)", packet, speed_count);
794 GST_OBJECT_LOCK (demux);
795 demux->segment = segment;
796 demux->packet = packet;
797 demux->need_newsegment = TRUE;
798 demux->segment_seqnum = seqnum;
799 demux->speed_packets = speed_count;
800 gst_asf_demux_reset_stream_state_after_discont (demux);
801 GST_OBJECT_UNLOCK (demux);
804 /* restart our task since it might have been stopped when we did the flush */
805 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_asf_demux_loop,
808 /* streaming can continue now */
809 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
815 gst_asf_demux_handle_src_event (GstPad * pad, GstObject * parent,
821 demux = GST_ASF_DEMUX (parent);
823 switch (GST_EVENT_TYPE (event)) {
825 GST_LOG_OBJECT (pad, "seek event");
826 ret = gst_asf_demux_handle_seek_event (demux, event);
827 gst_event_unref (event);
830 case GST_EVENT_NAVIGATION:
831 /* just drop these two silently */
832 gst_event_unref (event);
836 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
837 ret = gst_pad_event_default (pad, parent, event);
844 static inline guint32
845 gst_asf_demux_identify_guid (const ASFGuidHash * guids, ASFGuid * guid)
849 ret = gst_asf_identify_guid (guids, guid);
851 GST_LOG ("%s 0x%08x-0x%08x-0x%08x-0x%08x",
852 gst_asf_get_guid_nick (guids, ret),
853 guid->v1, guid->v2, guid->v3, guid->v4);
865 /* expect is true when the user is expeting an object,
866 * when false, it will give no warnings if the object
870 asf_demux_peek_object (GstASFDemux * demux, const guint8 * data,
871 guint data_len, AsfObject * object, gboolean expect)
875 if (data_len < ASF_OBJECT_HEADER_SIZE)
878 guid.v1 = GST_READ_UINT32_LE (data + 0);
879 guid.v2 = GST_READ_UINT32_LE (data + 4);
880 guid.v3 = GST_READ_UINT32_LE (data + 8);
881 guid.v4 = GST_READ_UINT32_LE (data + 12);
883 object->size = GST_READ_UINT64_LE (data + 16);
885 /* FIXME: make asf_demux_identify_object_guid() */
886 object->id = gst_asf_demux_identify_guid (asf_object_guids, &guid);
887 if (object->id == ASF_OBJ_UNDEFINED && expect) {
888 GST_WARNING_OBJECT (demux, "Unknown object %08x-%08x-%08x-%08x",
889 guid.v1, guid.v2, guid.v3, guid.v4);
896 gst_asf_demux_release_old_pads (GstASFDemux * demux)
898 GST_DEBUG_OBJECT (demux, "Releasing old pads");
900 while (demux->old_num_streams > 0) {
901 gst_pad_push_event (demux->old_stream[demux->old_num_streams - 1].pad,
902 gst_event_new_eos ());
903 gst_asf_demux_free_stream (demux,
904 &demux->old_stream[demux->old_num_streams - 1]);
905 --demux->old_num_streams;
907 memset (demux->old_stream, 0, sizeof (demux->old_stream));
908 demux->old_num_streams = 0;
912 gst_asf_demux_chain_headers (GstASFDemux * demux)
916 guint8 *header_data, *data = NULL;
917 const guint8 *cdata = NULL;
920 cdata = (guint8 *) gst_adapter_map (demux->adapter, ASF_OBJECT_HEADER_SIZE);
924 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
925 if (obj.id != ASF_OBJ_HEADER)
928 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
930 /* + 50 for non-packet data at beginning of ASF_OBJ_DATA */
931 if (gst_adapter_available (demux->adapter) < obj.size + 50)
934 data = gst_adapter_take (demux->adapter, obj.size + 50);
937 header_size = obj.size;
938 flow = gst_asf_demux_process_object (demux, &header_data, &header_size);
939 if (flow != GST_FLOW_OK)
942 /* calculate where the packet data starts */
943 demux->data_offset = obj.size + 50;
945 /* now parse the beginning of the ASF_OBJ_DATA object */
946 if (!gst_asf_demux_parse_data_object_start (demux, data + obj.size))
949 if (demux->num_streams == 0)
958 GST_LOG_OBJECT (demux, "not enough data in adapter yet");
965 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
966 ("This doesn't seem to be an ASF file"));
968 return GST_FLOW_ERROR;
973 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
974 ("header parsing failed, or no streams found, flow = %s",
975 gst_flow_get_name (flow)));
977 return GST_FLOW_ERROR;
982 gst_asf_demux_pull_data (GstASFDemux * demux, guint64 offset, guint size,
983 GstBuffer ** p_buf, GstFlowReturn * p_flow)
988 GST_LOG_OBJECT (demux, "pulling buffer at %" G_GUINT64_FORMAT "+%u",
991 flow = gst_pad_pull_range (demux->sinkpad, offset, size, p_buf);
993 if (G_LIKELY (p_flow))
996 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
997 GST_DEBUG_OBJECT (demux, "flow %s pulling buffer at %" G_GUINT64_FORMAT
998 "+%u", gst_flow_get_name (flow), offset, size);
1003 g_assert (*p_buf != NULL);
1005 buffer_size = gst_buffer_get_size (*p_buf);
1006 if (G_UNLIKELY (buffer_size < size)) {
1007 GST_DEBUG_OBJECT (demux, "short read pulling buffer at %" G_GUINT64_FORMAT
1008 "+%u (got only %" G_GSIZE_FORMAT " bytes)", offset, size, buffer_size);
1009 gst_buffer_unref (*p_buf);
1010 if (G_LIKELY (p_flow))
1011 *p_flow = GST_FLOW_EOS;
1020 gst_asf_demux_pull_indices (GstASFDemux * demux)
1022 GstBuffer *buf = NULL;
1026 offset = demux->index_offset;
1028 if (G_UNLIKELY (offset == 0)) {
1029 GST_DEBUG_OBJECT (demux, "can't read indices, don't know index offset");
1033 while (gst_asf_demux_pull_data (demux, offset, 16 + 8, &buf, NULL)) {
1039 gst_buffer_map (buf, &map, GST_MAP_READ);
1040 g_assert (map.size >= 16 + 8);
1041 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1042 gst_buffer_unmap (buf, &map);
1043 gst_buffer_replace (&buf, NULL);
1045 /* check for sanity */
1046 if (G_UNLIKELY (obj.size > (5 * 1024 * 1024))) {
1047 GST_DEBUG_OBJECT (demux, "implausible index object size, bailing out");
1051 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, offset, obj.size, &buf,
1055 GST_LOG_OBJECT (demux, "index object at offset 0x%" G_GINT64_MODIFIER "X"
1056 ", size %u", offset, (guint) obj.size);
1058 offset += obj.size; /* increase before _process_object changes it */
1060 gst_buffer_map (buf, &map, GST_MAP_READ);
1061 g_assert (map.size >= obj.size);
1062 bufdata = (guint8 *) map.data;
1063 flow = gst_asf_demux_process_object (demux, &bufdata, &obj.size);
1064 gst_buffer_unmap (buf, &map);
1065 gst_buffer_replace (&buf, NULL);
1067 if (G_UNLIKELY (flow != GST_FLOW_OK))
1072 GST_DEBUG_OBJECT (demux, "read %u index objects", num_read);
1076 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data)
1080 asf_demux_peek_object (demux, data, 50, &obj, TRUE);
1081 if (obj.id != ASF_OBJ_DATA) {
1082 GST_WARNING_OBJECT (demux, "headers not followed by a DATA object");
1086 demux->state = GST_ASF_DEMUX_STATE_DATA;
1088 if (!demux->broadcast && obj.size > 50) {
1089 demux->data_size = obj.size - 50;
1090 /* CHECKME: for at least one file this is off by +158 bytes?! */
1091 demux->index_offset = demux->data_offset + demux->data_size;
1093 demux->data_size = 0;
1094 demux->index_offset = 0;
1099 if (!demux->broadcast) {
1100 /* skip object header (24 bytes) and file GUID (16 bytes) */
1101 demux->num_packets = GST_READ_UINT64_LE (data + (16 + 8) + 16);
1103 demux->num_packets = 0;
1106 if (demux->num_packets == 0)
1107 demux->seekable = FALSE;
1109 /* fallback in the unlikely case that headers are inconsistent, can't hurt */
1110 if (demux->data_size == 0 && demux->num_packets > 0) {
1111 demux->data_size = demux->num_packets * demux->packet_size;
1112 demux->index_offset = demux->data_offset + demux->data_size;
1115 /* process pending stream objects and create pads for those */
1116 gst_asf_demux_process_queued_extended_stream_objects (demux);
1118 GST_INFO_OBJECT (demux, "Stream has %" G_GUINT64_FORMAT " packets, "
1119 "data_offset=%" G_GINT64_FORMAT ", data_size=%" G_GINT64_FORMAT
1120 ", index_offset=%" G_GUINT64_FORMAT, demux->num_packets,
1121 demux->data_offset, demux->data_size, demux->index_offset);
1127 gst_asf_demux_pull_headers (GstASFDemux * demux, GstFlowReturn * pflow)
1129 GstFlowReturn flow = GST_FLOW_OK;
1131 GstBuffer *buf = NULL;
1136 GST_LOG_OBJECT (demux, "reading headers");
1138 /* pull HEADER object header, so we know its size */
1139 if (!gst_asf_demux_pull_data (demux, demux->base_offset, 16 + 8, &buf, &flow))
1142 gst_buffer_map (buf, &map, GST_MAP_READ);
1143 g_assert (map.size >= 16 + 8);
1144 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1145 gst_buffer_unmap (buf, &map);
1146 gst_buffer_replace (&buf, NULL);
1148 if (obj.id != ASF_OBJ_HEADER)
1151 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
1153 /* pull HEADER object */
1154 if (!gst_asf_demux_pull_data (demux, demux->base_offset, obj.size, &buf,
1158 size = obj.size; /* don't want obj.size changed */
1159 gst_buffer_map (buf, &map, GST_MAP_READ);
1160 g_assert (map.size >= size);
1161 bufdata = (guint8 *) map.data;
1162 flow = gst_asf_demux_process_object (demux, &bufdata, &size);
1163 gst_buffer_unmap (buf, &map);
1164 gst_buffer_replace (&buf, NULL);
1166 if (flow != GST_FLOW_OK) {
1167 GST_WARNING_OBJECT (demux, "process_object: %s", gst_flow_get_name (flow));
1171 /* calculate where the packet data starts */
1172 demux->data_offset = demux->base_offset + obj.size + 50;
1174 /* now pull beginning of DATA object before packet data */
1175 if (!gst_asf_demux_pull_data (demux, demux->base_offset + obj.size, 50, &buf,
1179 gst_buffer_map (buf, &map, GST_MAP_READ);
1180 g_assert (map.size >= size);
1181 bufdata = (guint8 *) map.data;
1182 if (!gst_asf_demux_parse_data_object_start (demux, bufdata))
1185 if (demux->num_streams == 0)
1188 gst_buffer_unmap (buf, &map);
1189 gst_buffer_replace (&buf, NULL);
1197 gst_buffer_unmap (buf, &map);
1198 gst_buffer_replace (&buf, NULL);
1200 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1201 ("This doesn't seem to be an ASF file"));
1202 *pflow = GST_FLOW_ERROR;
1207 flow = GST_FLOW_ERROR;
1208 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1209 ("header parsing failed, or no streams found, flow = %s",
1210 gst_flow_get_name (flow)));
1215 gst_buffer_unmap (buf, &map);
1216 gst_buffer_replace (&buf, NULL);
1223 all_streams_prerolled (GstASFDemux * demux)
1225 GstClockTime preroll_time;
1226 guint i, num_no_data = 0;
1228 /* Allow at least 500ms of preroll_time */
1229 preroll_time = MAX (demux->preroll, 500 * GST_MSECOND);
1231 /* returns TRUE as long as there isn't a stream which (a) has data queued
1232 * and (b) the timestamp of last piece of data queued is < demux->preroll
1233 * AND there is at least one other stream with data queued */
1234 for (i = 0; i < demux->num_streams; ++i) {
1235 AsfPayload *last_payload = NULL;
1239 stream = &demux->stream[i];
1240 if (G_UNLIKELY (stream->payloads->len == 0)) {
1242 GST_LOG_OBJECT (stream->pad, "no data queued");
1246 /* find last payload with timestamp */
1247 for (last_idx = stream->payloads->len - 1;
1248 last_idx >= 0 && (last_payload == NULL
1249 || !GST_CLOCK_TIME_IS_VALID (last_payload->ts)); --last_idx) {
1250 last_payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1253 GST_LOG_OBJECT (stream->pad, "checking if %" GST_TIME_FORMAT " > %"
1254 GST_TIME_FORMAT, GST_TIME_ARGS (last_payload->ts),
1255 GST_TIME_ARGS (preroll_time));
1256 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (last_payload->ts)
1257 || last_payload->ts <= preroll_time)) {
1258 GST_LOG_OBJECT (stream->pad, "not beyond preroll point yet");
1263 if (G_UNLIKELY (num_no_data > 0))
1271 gst_asf_demux_have_mutually_exclusive_active_stream (GstASFDemux * demux,
1276 for (l = demux->mut_ex_streams; l != NULL; l = l->next) {
1279 /* check for each mutual exclusion group whether it affects this stream */
1280 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1281 if (*mes == stream->id) {
1282 /* we are in this group; let's check if we've already activated streams
1283 * that are in the same group (and hence mutually exclusive to this
1285 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1288 for (i = 0; i < demux->num_streams; ++i) {
1289 if (demux->stream[i].id == *mes && demux->stream[i].active) {
1290 GST_LOG_OBJECT (demux, "stream with ID %d is mutually exclusive "
1291 "to already active stream with ID %d", stream->id,
1292 demux->stream[i].id);
1297 /* we can only be in this group once, let's break out and move on to
1298 * the next mutual exclusion group */
1309 gst_asf_demux_check_segment_ts (GstASFDemux * demux, GstClockTime payload_ts)
1311 /* remember the first queued timestamp for the segment */
1312 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->segment_ts) &&
1313 GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1314 GST_DEBUG_OBJECT (demux, "segment ts: %" GST_TIME_FORMAT,
1315 GST_TIME_ARGS (demux->first_ts));
1316 demux->segment_ts = payload_ts;
1317 /* always note, but only determines segment when streaming */
1318 if (demux->streaming)
1319 gst_segment_do_seek (&demux->segment, demux->in_segment.rate,
1320 GST_FORMAT_TIME, (GstSeekFlags) demux->segment.flags,
1321 GST_SEEK_TYPE_SET, demux->segment_ts, GST_SEEK_TYPE_NONE, 0, NULL);
1326 gst_asf_demux_check_first_ts (GstASFDemux * demux, gboolean force)
1328 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1329 GstClockTime first_ts = GST_CLOCK_TIME_NONE;
1332 /* go trhough each stream, find smallest timestamp */
1333 for (i = 0; i < demux->num_streams; ++i) {
1336 GstClockTime stream_min_ts = GST_CLOCK_TIME_NONE;
1337 GstClockTime stream_min_ts2 = GST_CLOCK_TIME_NONE; /* second smallest timestamp */
1338 stream = &demux->stream[i];
1340 for (j = 0; j < stream->payloads->len; ++j) {
1341 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1342 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1343 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts)
1344 || stream_min_ts > payload->ts)) {
1345 stream_min_ts = payload->ts;
1347 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1348 payload->ts > stream_min_ts &&
1349 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts2)
1350 || stream_min_ts2 > payload->ts)) {
1351 stream_min_ts2 = payload->ts;
1355 /* there are some DVR ms files where first packet has TS of 0 (instead of -1) while subsequent packets have
1356 regular (singificantly larger) timestamps. If we don't deal with it, we may end up with huge gap in timestamps
1357 which makes playback stuck. The 0 timestamp may also be valid though, if the second packet timestamp continues
1358 from it. I havent found a better way to distinguish between these two, except to set an arbitrary boundary
1359 and disregard the first 0 timestamp if the second timestamp is bigger than the boundary) */
1361 if (stream_min_ts == 0 && stream_min_ts2 == GST_CLOCK_TIME_NONE && !force) /* still waiting for the second timestamp */
1364 if (stream_min_ts == 0 && stream_min_ts2 > GST_SECOND) /* first timestamp is 0 and second is significantly larger, disregard the 0 */
1365 stream_min_ts = stream_min_ts2;
1367 /* if we don't have timestamp for this stream, wait for more data */
1368 if (!GST_CLOCK_TIME_IS_VALID (stream_min_ts) && !force)
1371 if (GST_CLOCK_TIME_IS_VALID (stream_min_ts) &&
1372 (!GST_CLOCK_TIME_IS_VALID (first_ts) || first_ts > stream_min_ts))
1373 first_ts = stream_min_ts;
1376 if (!GST_CLOCK_TIME_IS_VALID (first_ts)) /* can happen with force = TRUE */
1379 demux->first_ts = first_ts;
1381 /* update packets queued before we knew first timestamp */
1382 for (i = 0; i < demux->num_streams; ++i) {
1385 stream = &demux->stream[i];
1387 for (j = 0; j < stream->payloads->len; ++j) {
1388 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1389 if (GST_CLOCK_TIME_IS_VALID (payload->ts)) {
1390 if (payload->ts > first_ts)
1391 payload->ts -= first_ts;
1399 gst_asf_demux_check_segment_ts (demux, 0);
1405 gst_asf_demux_update_caps_from_payload (GstASFDemux * demux, AsfStream * stream)
1407 /* try to determine whether the stream is AC-3 or MPEG; In dvr-ms the codecTag is unreliable
1408 and often set wrong, inspecting the data is the only way that seem to be working */
1409 GstTypeFindProbability prob = GST_TYPE_FIND_NONE;
1410 GstCaps *caps = NULL;
1412 GstAdapter *adapter = gst_adapter_new ();
1414 for (i = 0; i < stream->payloads->len && prob < GST_TYPE_FIND_LIKELY; ++i) {
1416 AsfPayload *payload;
1419 payload = &g_array_index (stream->payloads, AsfPayload, i);
1420 gst_adapter_push (adapter, gst_buffer_ref (payload->buf));
1421 len = gst_adapter_available (adapter);
1422 data = gst_adapter_map (adapter, len);
1426 #define MIN_LENGTH 128
1428 /* look for the sync points */
1430 if (len < MIN_LENGTH || /* give typefind something to work on */
1431 (data[0] == 0x0b && data[1] == 0x77) || /* AC-3 sync point */
1432 (data[0] == 0xFF && ((data[1] & 0xF0) >> 4) == 0xF)) /* MPEG sync point */
1438 gst_caps_take (&caps, gst_type_find_helper_for_data (GST_OBJECT (demux),
1441 if (prob < GST_TYPE_FIND_LIKELY) {
1444 if (len > MIN_LENGTH)
1445 /* this wasn't it, look for another sync point */
1449 gst_adapter_unmap (adapter);
1452 gst_object_unref (adapter);
1455 gst_caps_take (&stream->caps, caps);
1463 gst_asf_demux_check_activate_streams (GstASFDemux * demux, gboolean force)
1467 if (demux->activated_streams)
1470 if (G_UNLIKELY (!gst_asf_demux_check_first_ts (demux, force)))
1473 if (!all_streams_prerolled (demux) && !force) {
1474 GST_DEBUG_OBJECT (demux, "not all streams with data beyond preroll yet");
1478 for (i = 0; i < demux->num_streams; ++i) {
1479 AsfStream *stream = &demux->stream[i];
1481 if (stream->payloads->len > 0) {
1483 if (stream->inspect_payload && /* dvr-ms required payload inspection */
1484 !stream->active && /* do not inspect active streams (caps were already set) */
1485 !gst_asf_demux_update_caps_from_payload (demux, stream) && /* failed to determine caps */
1486 stream->payloads->len < 20) { /* if we couldn't determine the caps from 20 packets then just give up and use whatever was in codecTag */
1487 /* try to gather some more data */
1490 /* we don't check mutual exclusion stuff here; either we have data for
1491 * a stream, then we active it, or we don't, then we'll ignore it */
1492 GST_LOG_OBJECT (stream->pad, "is prerolled - activate!");
1493 gst_asf_demux_activate_stream (demux, stream);
1495 GST_LOG_OBJECT (stream->pad, "no data, ignoring stream");
1499 gst_asf_demux_release_old_pads (demux);
1501 demux->activated_streams = TRUE;
1502 GST_LOG_OBJECT (demux, "signalling no more pads");
1503 gst_element_no_more_pads (GST_ELEMENT (demux));
1507 /* returns the stream that has a complete payload with the lowest timestamp
1508 * queued, or NULL (we push things by timestamp because during the internal
1509 * prerolling we might accumulate more data then the external queues can take,
1510 * so we'd lock up if we pushed all accumulated data for stream N in one go) */
1512 gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
1514 AsfPayload *best_payload = NULL;
1515 AsfStream *best_stream = NULL;
1518 for (i = 0; i < demux->num_streams; ++i) {
1522 stream = &demux->stream[i];
1524 /* Don't push any data until we have at least one payload that falls within
1525 * the current segment. This way we can remove out-of-segment payloads that
1526 * don't need to be decoded after a seek, sending only data from the
1527 * keyframe directly before our segment start */
1528 if (stream->payloads->len > 0) {
1529 AsfPayload *payload = NULL;
1532 /* find last payload with timestamp */
1533 for (last_idx = stream->payloads->len - 1;
1534 last_idx >= 0 && (payload == NULL
1535 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); --last_idx) {
1536 payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1539 /* if this is first payload after seek we might need to update the segment */
1540 if (GST_CLOCK_TIME_IS_VALID (payload->ts))
1541 gst_asf_demux_check_segment_ts (demux, payload->ts);
1543 if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1544 (payload->ts < demux->segment.start))) {
1545 if (G_UNLIKELY (demux->keyunit_sync && payload->keyframe)) {
1546 GST_DEBUG_OBJECT (stream->pad,
1547 "Found keyframe, updating segment start to %" GST_TIME_FORMAT,
1548 GST_TIME_ARGS (payload->ts));
1549 demux->segment.start = payload->ts;
1550 demux->segment.time = payload->ts;
1552 GST_DEBUG_OBJECT (stream->pad, "Last queued payload has timestamp %"
1553 GST_TIME_FORMAT " which is before our segment start %"
1554 GST_TIME_FORMAT ", not pushing yet", GST_TIME_ARGS (payload->ts),
1555 GST_TIME_ARGS (demux->segment.start));
1560 /* Now see if there's a complete payload queued for this stream */
1563 /* find first complete payload with timestamp */
1565 j < stream->payloads->len && (payload == NULL
1566 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); ++j) {
1567 payload = &g_array_index (stream->payloads, AsfPayload, j);
1570 if (!gst_asf_payload_is_complete (payload))
1573 /* ... and whether its timestamp is lower than the current best */
1574 if (best_stream == NULL || best_payload->ts > payload->ts) {
1575 best_stream = stream;
1576 best_payload = payload;
1584 static GstFlowReturn
1585 gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
1588 GstFlowReturn ret = GST_FLOW_OK;
1590 if (G_UNLIKELY (!demux->activated_streams)) {
1591 if (!gst_asf_demux_check_activate_streams (demux, force))
1593 /* streams are now activated */
1596 while ((stream = gst_asf_demux_find_stream_with_complete_payload (demux))) {
1597 AsfPayload *payload;
1598 GstClockTime timestamp = GST_CLOCK_TIME_NONE;
1599 GstClockTime duration = GST_CLOCK_TIME_NONE;
1601 /* wait until we had a chance to "lock on" some payload's timestamp */
1602 if (G_UNLIKELY (demux->need_newsegment
1603 && !GST_CLOCK_TIME_IS_VALID (demux->segment_ts)))
1606 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1608 /* do we need to send a newsegment event */
1609 if ((G_UNLIKELY (demux->need_newsegment))) {
1610 GstEvent *segment_event;
1612 /* safe default if insufficient upstream info */
1613 if (!GST_CLOCK_TIME_IS_VALID (demux->in_gap))
1616 if (demux->segment.stop == GST_CLOCK_TIME_NONE &&
1617 demux->segment.duration > 0) {
1618 /* slight HACK; prevent clipping of last bit */
1619 demux->segment.stop = demux->segment.duration + demux->in_gap;
1622 /* FIXME : only if ACCURATE ! */
1623 if (G_LIKELY (demux->keyunit_sync
1624 && GST_CLOCK_TIME_IS_VALID (payload->ts))) {
1625 GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
1626 GST_TIME_ARGS (payload->ts));
1627 demux->segment.start = payload->ts;
1628 demux->segment.time = payload->ts;
1631 GST_DEBUG_OBJECT (demux, "sending new-segment event %" GST_SEGMENT_FORMAT,
1634 /* note: we fix up all timestamps to start from 0, so this should be ok */
1635 segment_event = gst_event_new_segment (&demux->segment);
1636 if (demux->segment_seqnum)
1637 gst_event_set_seqnum (segment_event, demux->segment_seqnum);
1638 gst_asf_demux_send_event_unlocked (demux, segment_event);
1640 /* now post any global tags we may have found */
1641 if (demux->taglist == NULL) {
1642 demux->taglist = gst_tag_list_new_empty ();
1643 gst_tag_list_set_scope (demux->taglist, GST_TAG_SCOPE_GLOBAL);
1646 gst_tag_list_add (demux->taglist, GST_TAG_MERGE_REPLACE,
1647 GST_TAG_CONTAINER_FORMAT, "ASF", NULL);
1649 GST_DEBUG_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, demux->taglist);
1650 gst_asf_demux_send_event_unlocked (demux,
1651 gst_event_new_tag (demux->taglist));
1652 demux->taglist = NULL;
1654 demux->need_newsegment = FALSE;
1655 demux->segment_seqnum = 0;
1656 demux->segment_running = TRUE;
1659 /* Do we have tags pending for this stream? */
1660 if (G_UNLIKELY (stream->pending_tags)) {
1661 GST_LOG_OBJECT (stream->pad, "%" GST_PTR_FORMAT, stream->pending_tags);
1662 gst_pad_push_event (stream->pad,
1663 gst_event_new_tag (stream->pending_tags));
1664 stream->pending_tags = NULL;
1667 /* We have the whole packet now so we should push the packet to
1668 * the src pad now. First though we should check if we need to do
1670 if (G_UNLIKELY (stream->span > 1)) {
1671 gst_asf_demux_descramble_buffer (demux, stream, &payload->buf);
1674 payload->buf = gst_buffer_make_writable (payload->buf);
1676 if (G_LIKELY (!payload->keyframe)) {
1677 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DELTA_UNIT);
1680 if (G_UNLIKELY (stream->discont)) {
1681 GST_DEBUG_OBJECT (stream->pad, "marking DISCONT on stream");
1682 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1683 stream->discont = FALSE;
1686 if (G_UNLIKELY (stream->is_video && payload->par_x && payload->par_y &&
1687 (payload->par_x != stream->par_x) &&
1688 (payload->par_y != stream->par_y))) {
1689 GST_DEBUG ("Updating PAR (%d/%d => %d/%d)",
1690 stream->par_x, stream->par_y, payload->par_x, payload->par_y);
1691 stream->par_x = payload->par_x;
1692 stream->par_y = payload->par_y;
1693 stream->caps = gst_caps_make_writable (stream->caps);
1694 gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
1695 GST_TYPE_FRACTION, stream->par_x, stream->par_y, NULL);
1696 gst_pad_set_caps (stream->pad, stream->caps);
1699 if (G_UNLIKELY (stream->interlaced != payload->interlaced)) {
1700 GST_DEBUG ("Updating interlaced status (%d => %d)", stream->interlaced,
1701 payload->interlaced);
1702 stream->interlaced = payload->interlaced;
1703 stream->caps = gst_caps_make_writable (stream->caps);
1704 gst_caps_set_simple (stream->caps, "interlace-mode", G_TYPE_BOOLEAN,
1705 (stream->interlaced ? "mixed" : "progressive"), NULL);
1706 gst_pad_set_caps (stream->pad, stream->caps);
1709 /* (sort of) interpolate timestamps using upstream "frame of reference",
1710 * typically useful for live src, but might (unavoidably) mess with
1711 * position reporting if a live src is playing not so live content
1712 * (e.g. rtspsrc taking some time to fall back to tcp) */
1713 timestamp = payload->ts;
1714 if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
1715 timestamp += demux->in_gap;
1718 GST_BUFFER_PTS (payload->buf) = timestamp;
1720 if (payload->duration == GST_CLOCK_TIME_NONE
1721 && stream->ext_props.avg_time_per_frame != 0) {
1722 duration = stream->ext_props.avg_time_per_frame * 100;
1724 duration = payload->duration;
1726 GST_BUFFER_DURATION (payload->buf) = duration;
1728 /* FIXME: we should really set durations on buffers if we can */
1730 GST_LOG_OBJECT (stream->pad, "pushing buffer, %" GST_PTR_FORMAT,
1733 if (stream->active) {
1734 if (G_UNLIKELY (stream->first_buffer)) {
1735 if (stream->streamheader != NULL) {
1736 GST_DEBUG_OBJECT (stream->pad,
1737 "Pushing streamheader before first buffer");
1738 gst_pad_push (stream->pad, gst_buffer_ref (stream->streamheader));
1740 stream->first_buffer = FALSE;
1743 if (GST_CLOCK_TIME_IS_VALID (timestamp)
1744 && timestamp > demux->segment.position) {
1745 demux->segment.position = timestamp;
1746 if (GST_CLOCK_TIME_IS_VALID (duration))
1747 demux->segment.position += timestamp;
1750 ret = gst_pad_push (stream->pad, payload->buf);
1751 ret = gst_flow_combiner_update_flow (demux->flowcombiner, ret);
1753 gst_buffer_unref (payload->buf);
1756 payload->buf = NULL;
1757 g_array_remove_index (stream->payloads, 0);
1759 /* Break out as soon as we have an issue */
1760 if (G_UNLIKELY (ret != GST_FLOW_OK))
1768 gst_asf_demux_check_buffer_is_header (GstASFDemux * demux, GstBuffer * buf)
1772 g_assert (buf != NULL);
1774 GST_LOG_OBJECT (demux, "Checking if buffer is a header");
1776 gst_buffer_map (buf, &map, GST_MAP_READ);
1778 /* we return false on buffer too small */
1779 if (map.size < ASF_OBJECT_HEADER_SIZE) {
1780 gst_buffer_unmap (buf, &map);
1784 /* check if it is a header */
1785 asf_demux_peek_object (demux, map.data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
1786 gst_buffer_unmap (buf, &map);
1787 if (obj.id == ASF_OBJ_HEADER) {
1794 gst_asf_demux_check_chained_asf (GstASFDemux * demux)
1796 guint64 off = demux->data_offset + (demux->packet * demux->packet_size);
1797 GstFlowReturn ret = GST_FLOW_OK;
1798 GstBuffer *buf = NULL;
1799 gboolean header = FALSE;
1801 /* TODO maybe we should skip index objects after the data and look
1802 * further for a new header */
1803 if (gst_asf_demux_pull_data (demux, off, ASF_OBJECT_HEADER_SIZE, &buf, &ret)) {
1804 g_assert (buf != NULL);
1805 /* check if it is a header */
1806 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1807 GST_DEBUG_OBJECT (demux, "new base offset: %" G_GUINT64_FORMAT, off);
1808 demux->base_offset = off;
1812 gst_buffer_unref (buf);
1819 gst_asf_demux_loop (GstASFDemux * demux)
1821 GstFlowReturn flow = GST_FLOW_OK;
1822 GstBuffer *buf = NULL;
1825 if (G_UNLIKELY (demux->state == GST_ASF_DEMUX_STATE_HEADER)) {
1826 if (!gst_asf_demux_pull_headers (demux, &flow)) {
1830 gst_asf_demux_pull_indices (demux);
1833 g_assert (demux->state == GST_ASF_DEMUX_STATE_DATA);
1835 if (G_UNLIKELY (demux->num_packets != 0
1836 && demux->packet >= demux->num_packets))
1839 GST_LOG_OBJECT (demux, "packet %u/%u", (guint) demux->packet + 1,
1840 (guint) demux->num_packets);
1842 off = demux->data_offset + (demux->packet * demux->packet_size);
1844 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, off,
1845 demux->packet_size * demux->speed_packets, &buf, &flow))) {
1846 GST_DEBUG_OBJECT (demux, "got flow %s", gst_flow_get_name (flow));
1847 if (flow == GST_FLOW_EOS) {
1849 } else if (flow == GST_FLOW_FLUSHING) {
1850 GST_DEBUG_OBJECT (demux, "Not fatal");
1857 if (G_LIKELY (demux->speed_packets == 1)) {
1858 GstAsfDemuxParsePacketError err;
1859 err = gst_asf_demux_parse_packet (demux, buf);
1860 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1861 /* when we don't know when the data object ends, we should check
1862 * for a chained asf */
1863 if (demux->num_packets == 0) {
1864 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1865 GST_INFO_OBJECT (demux, "Chained asf found");
1866 demux->base_offset = off;
1867 gst_asf_demux_reset (demux, TRUE);
1868 gst_buffer_unref (buf);
1872 /* FIXME: We should tally up fatal errors and error out only
1873 * after a few broken packets in a row? */
1875 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1876 gst_buffer_unref (buf);
1881 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1887 for (n = 0; n < demux->speed_packets; n++) {
1889 GstAsfDemuxParsePacketError err;
1892 gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL,
1893 n * demux->packet_size, demux->packet_size);
1894 err = gst_asf_demux_parse_packet (demux, sub);
1895 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1896 /* when we don't know when the data object ends, we should check
1897 * for a chained asf */
1898 if (demux->num_packets == 0) {
1899 if (gst_asf_demux_check_buffer_is_header (demux, sub)) {
1900 GST_INFO_OBJECT (demux, "Chained asf found");
1901 demux->base_offset = off + n * demux->packet_size;
1902 gst_asf_demux_reset (demux, TRUE);
1903 gst_buffer_unref (sub);
1904 gst_buffer_unref (buf);
1908 /* FIXME: We should tally up fatal errors and error out only
1909 * after a few broken packets in a row? */
1911 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1915 gst_buffer_unref (sub);
1917 if (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)
1918 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1924 /* reset speed pull */
1925 demux->speed_packets = 1;
1928 gst_buffer_unref (buf);
1930 if (G_UNLIKELY ((demux->num_packets > 0
1931 && demux->packet >= demux->num_packets)
1932 || flow == GST_FLOW_EOS)) {
1933 GST_LOG_OBJECT (demux, "reached EOS");
1937 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1938 GST_DEBUG_OBJECT (demux, "pushing complete payloads failed");
1942 /* check if we're at the end of the configured segment */
1943 /* FIXME: check if segment end reached etc. */
1949 /* if we haven't activated our streams yet, this might be because we have
1950 * less data queued than required for preroll; force stream activation and
1951 * send any pending payloads before sending EOS */
1952 if (!demux->activated_streams)
1953 gst_asf_demux_push_complete_payloads (demux, TRUE);
1955 /* we want to push an eos or post a segment-done in any case */
1956 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1959 /* for segment playback we need to post when (in stream time)
1960 * we stopped, this is either stop (when set) or the duration. */
1961 if ((stop = demux->segment.stop) == -1)
1962 stop = demux->segment.duration;
1964 GST_INFO_OBJECT (demux, "Posting segment-done, at end of segment");
1965 gst_element_post_message (GST_ELEMENT_CAST (demux),
1966 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
1968 gst_asf_demux_send_event_unlocked (demux,
1969 gst_event_new_segment_done (GST_FORMAT_TIME, stop));
1970 } else if (flow != GST_FLOW_EOS) {
1971 /* check if we have a chained asf, in case, we don't eos yet */
1972 if (gst_asf_demux_check_chained_asf (demux)) {
1973 GST_INFO_OBJECT (demux, "Chained ASF starting");
1974 gst_asf_demux_reset (demux, TRUE);
1979 if (!(demux->segment.flags & GST_SEEK_FLAG_SEGMENT)) {
1980 /* normal playback, send EOS to all linked pads */
1981 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
1982 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1984 /* ... and fall through to pause */
1988 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
1989 gst_flow_get_name (flow));
1990 demux->segment_running = FALSE;
1991 gst_pad_pause_task (demux->sinkpad);
1993 /* For the error cases */
1994 if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
1995 /* Post an error. Hopefully something else already has, but if not... */
1996 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1997 (_("Internal data stream error.")),
1998 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
1999 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
2008 GST_DEBUG_OBJECT (demux, "Read failed, doh");
2009 flow = GST_FLOW_EOS;
2013 /* See FIXMEs above */
2016 gst_buffer_unref (buf);
2017 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2018 ("Error parsing ASF packet %u", (guint) demux->packet));
2019 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
2020 flow = GST_FLOW_ERROR;
2026 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
2027 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
2028 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
2031 gst_asf_demux_check_header (GstASFDemux * demux)
2034 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
2035 ASF_OBJECT_HEADER_SIZE);
2036 if (cdata == NULL) /* need more data */
2037 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
2039 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE);
2040 if (obj.id != ASF_OBJ_HEADER) {
2041 return GST_ASF_DEMUX_CHECK_HEADER_NO;
2043 return GST_ASF_DEMUX_CHECK_HEADER_YES;
2047 static GstFlowReturn
2048 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
2050 GstFlowReturn ret = GST_FLOW_OK;
2053 demux = GST_ASF_DEMUX (parent);
2055 GST_LOG_OBJECT (demux,
2056 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
2057 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
2058 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
2060 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
2061 GST_DEBUG_OBJECT (demux, "received DISCONT");
2062 gst_asf_demux_mark_discont (demux);
2065 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
2066 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
2067 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
2068 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
2069 ", interpolation gap: %" GST_TIME_FORMAT,
2070 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
2073 gst_adapter_push (demux->adapter, buf);
2075 switch (demux->state) {
2076 case GST_ASF_DEMUX_STATE_INDEX:{
2077 gint result = gst_asf_demux_check_header (demux);
2078 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
2081 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
2082 /* we don't care about this, probably an index */
2083 /* TODO maybe would be smarter to skip all the indices
2084 * until we got a new header or EOS to decide */
2085 GST_LOG_OBJECT (demux, "Received index object, its EOS");
2088 GST_INFO_OBJECT (demux, "Chained asf starting");
2089 /* cleanup and get ready for a chained asf */
2090 gst_asf_demux_reset (demux, TRUE);
2094 case GST_ASF_DEMUX_STATE_HEADER:{
2095 ret = gst_asf_demux_chain_headers (demux);
2096 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
2098 /* otherwise fall through */
2100 case GST_ASF_DEMUX_STATE_DATA:
2104 data_size = demux->packet_size;
2106 while (gst_adapter_available (demux->adapter) >= data_size) {
2108 GstAsfDemuxParsePacketError err;
2110 /* we don't know the length of the stream
2111 * check for a chained asf everytime */
2112 if (demux->num_packets == 0) {
2113 gint result = gst_asf_demux_check_header (demux);
2115 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
2116 GST_INFO_OBJECT (demux, "Chained asf starting");
2117 /* cleanup and get ready for a chained asf */
2118 gst_asf_demux_reset (demux, TRUE);
2121 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2122 && demux->packet >= demux->num_packets)) {
2123 /* do not overshoot data section when streaming */
2127 buf = gst_adapter_take_buffer (demux->adapter, data_size);
2129 /* FIXME: We should tally up fatal errors and error out only
2130 * after a few broken packets in a row? */
2131 err = gst_asf_demux_parse_packet (demux, buf);
2133 gst_buffer_unref (buf);
2135 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
2136 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
2138 GST_WARNING_OBJECT (demux, "Parse error");
2140 if (demux->packet >= 0)
2143 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2144 && demux->packet >= demux->num_packets)) {
2145 demux->state = GST_ASF_DEMUX_STATE_INDEX;
2150 g_assert_not_reached ();
2154 if (ret != GST_FLOW_OK)
2155 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
2161 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
2167 static inline gboolean
2168 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
2170 if (*p_size < num_bytes)
2173 *p_data += num_bytes;
2174 *p_size -= num_bytes;
2178 static inline guint8
2179 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
2183 g_assert (*p_size >= 1);
2184 ret = GST_READ_UINT8 (*p_data);
2185 *p_data += sizeof (guint8);
2186 *p_size -= sizeof (guint8);
2190 static inline guint16
2191 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
2195 g_assert (*p_size >= 2);
2196 ret = GST_READ_UINT16_LE (*p_data);
2197 *p_data += sizeof (guint16);
2198 *p_size -= sizeof (guint16);
2202 static inline guint32
2203 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
2207 g_assert (*p_size >= 4);
2208 ret = GST_READ_UINT32_LE (*p_data);
2209 *p_data += sizeof (guint32);
2210 *p_size -= sizeof (guint32);
2214 static inline guint64
2215 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
2219 g_assert (*p_size >= 8);
2220 ret = GST_READ_UINT64_LE (*p_data);
2221 *p_data += sizeof (guint64);
2222 *p_size -= sizeof (guint64);
2227 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2228 guint8 ** p_data, guint64 * p_size)
2232 if (*p_size < num_bytes_to_read)
2235 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2236 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2238 *p_data += num_bytes_to_read;
2239 *p_size -= num_bytes_to_read;
2245 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2246 guint8 ** p_data, guint64 * p_size)
2250 if (*p_size < num_bytes_to_read)
2253 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2254 *p_data += num_bytes_to_read;
2255 *p_size -= num_bytes_to_read;
2260 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2261 guint8 ** p_data, guint64 * p_size)
2271 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2274 *p_strlen = s_length;
2276 if (s_length == 0) {
2277 GST_WARNING ("zero-length string");
2278 *p_str = g_strdup ("");
2282 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2285 g_assert (s != NULL);
2287 /* just because They don't exist doesn't
2288 * mean They are not out to get you ... */
2289 if (s[s_length - 1] != '\0') {
2290 s = g_realloc (s, s_length + 1);
2294 *p_str = (gchar *) s;
2300 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2302 g_assert (*p_size >= 4 * sizeof (guint32));
2304 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2305 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2306 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2307 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2311 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2314 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2317 /* WAVEFORMATEX Structure */
2318 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2319 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2320 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2321 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2322 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2323 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2324 /* Codec specific data size */
2325 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2330 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2333 if (*p_size < (4 + 4 + 1 + 2))
2336 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2337 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2338 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2339 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2344 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2345 guint8 ** p_data, guint64 * p_size)
2347 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2350 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2351 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2352 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2353 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2354 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2355 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2356 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2357 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2358 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2359 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2360 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2365 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2369 for (i = 0; i < demux->num_streams; i++) {
2370 if (demux->stream[i].id == id)
2371 return &demux->stream[i];
2374 if (gst_asf_demux_is_unknown_stream (demux, id))
2375 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2380 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2381 GstCaps * caps, guint16 id, gboolean is_video, GstBuffer * streamheader,
2386 gst_pad_use_fixed_caps (src_pad);
2387 gst_pad_set_caps (src_pad, caps);
2389 gst_pad_set_event_function (src_pad,
2390 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2391 gst_pad_set_query_function (src_pad,
2392 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2394 stream = &demux->stream[demux->num_streams];
2395 stream->caps = caps;
2396 stream->pad = src_pad;
2398 stream->fps_known = !is_video; /* bit hacky for audio */
2399 stream->is_video = is_video;
2400 stream->pending_tags = tags;
2401 stream->discont = TRUE;
2402 stream->first_buffer = TRUE;
2403 stream->streamheader = streamheader;
2404 if (stream->streamheader) {
2405 stream->streamheader = gst_buffer_make_writable (streamheader);
2406 GST_BUFFER_FLAG_SET (stream->streamheader, GST_BUFFER_FLAG_HEADER);
2411 st = gst_caps_get_structure (caps, 0);
2412 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2413 par_x > 0 && par_y > 0) {
2414 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2415 stream->par_x = par_x;
2416 stream->par_y = par_y;
2420 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2422 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2423 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2425 ++demux->num_streams;
2427 stream->active = FALSE;
2433 gst_asf_demux_add_stream_headers_to_caps (GstASFDemux * demux,
2434 GstBuffer * buffer, GstStructure * structure)
2436 GValue arr_val = G_VALUE_INIT;
2437 GValue buf_val = G_VALUE_INIT;
2439 g_value_init (&arr_val, GST_TYPE_ARRAY);
2440 g_value_init (&buf_val, GST_TYPE_BUFFER);
2442 gst_value_set_buffer (&buf_val, buffer);
2443 gst_value_array_append_and_take_value (&arr_val, &buf_val);
2445 gst_structure_take_value (structure, "streamheader", &arr_val);
2449 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2450 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2452 GstTagList *tags = NULL;
2453 GstBuffer *extradata = NULL;
2456 guint16 size_left = 0;
2457 gchar *codec_name = NULL;
2460 size_left = audio->size;
2462 /* Create the audio pad */
2463 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2465 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2468 /* Swallow up any left over data and set up the
2469 * standard properties from the header info */
2471 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2472 "codec specific data", size_left);
2474 g_assert (size_left <= *p_size);
2475 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2478 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2479 * additional two bytes indicating extradata. */
2480 /* FIXME: Handle the channel reorder map here */
2481 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2482 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2485 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2486 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2489 /* Informing about that audio format we just added */
2491 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2492 g_free (codec_name);
2496 gst_buffer_unref (extradata);
2498 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2499 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2500 audio->codec_tag, tags);
2502 ++demux->num_audio_streams;
2504 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, NULL, tags);
2508 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2509 asf_stream_video_format * video, guint16 id,
2510 guint8 ** p_data, guint64 * p_size)
2512 GstTagList *tags = NULL;
2513 GstStructure *caps_s;
2514 GstBuffer *extradata = NULL;
2519 gchar *codec_name = NULL;
2520 gint size_left = video->size - 40;
2521 GstBuffer *streamheader = NULL;
2522 guint par_w = 1, par_h = 1;
2524 /* Create the video pad */
2525 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2526 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2529 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2531 GST_LOG ("Video header has %d bytes of codec specific data", size_left);
2532 g_assert (size_left <= *p_size);
2533 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2536 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2538 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2539 caps = gst_riff_create_video_caps (video->tag, NULL,
2540 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2543 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2544 G_TYPE_UINT, video->tag, NULL);
2549 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2550 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2551 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2554 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2558 /* retry with the global metadata */
2559 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2560 demux->global_metadata);
2561 s = demux->global_metadata;
2562 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2563 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2564 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2565 if (ax > 0 && ay > 0) {
2568 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2573 s = gst_caps_get_structure (caps, 0);
2574 gst_structure_remove_field (s, "framerate");
2577 caps_s = gst_caps_get_structure (caps, 0);
2579 /* add format field with fourcc to WMV/VC1 caps to differentiate variants */
2580 if (gst_structure_has_name (caps_s, "video/x-wmv")) {
2581 str = g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2582 gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
2585 /* check if h264 has codec_data (avc) or streamheaders (bytestream) */
2586 } else if (gst_structure_has_name (caps_s, "video/x-h264")) {
2587 const GValue *value = gst_structure_get_value (caps_s, "codec_data");
2589 GstBuffer *buf = gst_value_get_buffer (value);
2592 if (gst_buffer_map (buf, &mapinfo, GST_MAP_READ)) {
2593 if (mapinfo.size >= 4 && GST_READ_UINT32_BE (mapinfo.data) == 1) {
2594 /* this looks like a bytestream start */
2595 streamheader = gst_buffer_ref (buf);
2596 gst_asf_demux_add_stream_headers_to_caps (demux, buf, caps_s);
2597 gst_structure_remove_field (caps_s, "codec_data");
2600 gst_buffer_unmap (buf, &mapinfo);
2605 /* For a 3D video, set multiview information into the caps based on
2606 * what was detected during object parsing */
2607 if (demux->asf_3D_mode != GST_ASF_3D_NONE) {
2608 GstVideoMultiviewMode mv_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
2609 GstVideoMultiviewFlags mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
2610 const gchar *mview_mode_str;
2612 switch (demux->asf_3D_mode) {
2613 case GST_ASF_3D_SIDE_BY_SIDE_HALF_LR:
2614 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2616 case GST_ASF_3D_SIDE_BY_SIDE_HALF_RL:
2617 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2618 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2620 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR:
2621 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2623 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL:
2624 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2625 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2627 case GST_ASF_3D_DUAL_STREAM:{
2628 gboolean is_right_view = FALSE;
2629 /* if Advanced_Mutual_Exclusion object exists, use it
2630 * to figure out which is the left view (lower ID) */
2631 if (demux->mut_ex_streams != NULL) {
2635 length = g_slist_length (demux->mut_ex_streams);
2637 for (i = 0; i < length; i++) {
2640 v_s_id = g_slist_nth_data (demux->mut_ex_streams, i);
2642 GST_DEBUG_OBJECT (demux,
2643 "has Mutual_Exclusion object. stream id in object is %d",
2644 GPOINTER_TO_INT (v_s_id));
2646 if (id > GPOINTER_TO_INT (v_s_id))
2647 is_right_view = TRUE;
2650 /* if the Advaced_Mutual_Exclusion object doesn't exist, assume the
2651 * first video stream encountered has the lower ID */
2652 if (demux->num_video_streams > 0) {
2653 /* This is not the first video stream, assuming right eye view */
2654 is_right_view = TRUE;
2658 mv_mode = GST_VIDEO_MULTIVIEW_MODE_RIGHT;
2660 mv_mode = GST_VIDEO_MULTIVIEW_MODE_LEFT;
2667 GST_INFO_OBJECT (demux,
2668 "stream_id %d, has multiview-mode %d flags 0x%x", id, mv_mode,
2671 mview_mode_str = gst_video_multiview_mode_to_caps_string (mv_mode);
2672 if (mview_mode_str != NULL) {
2673 if (gst_video_multiview_guess_half_aspect (mv_mode, video->width,
2674 video->height, par_w, par_h))
2675 mv_flags |= GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT;
2677 gst_caps_set_simple (caps,
2678 "multiview-mode", G_TYPE_STRING, mview_mode_str,
2679 "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mv_flags,
2680 GST_FLAG_SET_MASK_EXACT, NULL);
2685 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2686 g_free (codec_name);
2690 gst_buffer_unref (extradata);
2692 GST_INFO ("Adding video stream #%u, id %u, codec %"
2693 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2694 GST_FOURCC_ARGS (video->tag), video->tag);
2696 ++demux->num_video_streams;
2698 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE,
2699 streamheader, tags);
2703 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2705 if (!stream->active) {
2709 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2710 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2711 gst_pad_set_active (stream->pad, TRUE);
2714 gst_pad_create_stream_id_printf (stream->pad, GST_ELEMENT_CAST (demux),
2715 "%03u", stream->id);
2718 gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
2720 if (gst_event_parse_group_id (event, &demux->group_id))
2721 demux->have_group_id = TRUE;
2723 demux->have_group_id = FALSE;
2724 gst_event_unref (event);
2725 } else if (!demux->have_group_id) {
2726 demux->have_group_id = TRUE;
2727 demux->group_id = gst_util_group_id_next ();
2730 event = gst_event_new_stream_start (stream_id);
2731 if (demux->have_group_id)
2732 gst_event_set_group_id (event, demux->group_id);
2734 gst_pad_push_event (stream->pad, event);
2736 gst_pad_set_caps (stream->pad, stream->caps);
2738 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2739 gst_flow_combiner_add_pad (demux->flowcombiner, stream->pad);
2740 stream->active = TRUE;
2745 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2748 AsfCorrectionType correction_type;
2749 AsfStreamType stream_type;
2750 GstClockTime time_offset;
2751 gboolean is_encrypted G_GNUC_UNUSED;
2755 guint stream_specific_size;
2756 guint type_specific_size G_GNUC_UNUSED;
2757 guint unknown G_GNUC_UNUSED;
2758 gboolean inspect_payload = FALSE;
2759 AsfStream *stream = NULL;
2761 /* Get the rest of the header's header */
2762 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2763 goto not_enough_data;
2765 gst_asf_demux_get_guid (&guid, &data, &size);
2766 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2768 gst_asf_demux_get_guid (&guid, &data, &size);
2769 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2771 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2773 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2774 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2776 flags = gst_asf_demux_get_uint16 (&data, &size);
2777 stream_id = flags & 0x7f;
2778 is_encrypted = ! !((flags & 0x8000) << 15);
2779 unknown = gst_asf_demux_get_uint32 (&data, &size);
2781 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2782 stream_id, GST_TIME_ARGS (time_offset));
2784 /* dvr-ms has audio stream declared in stream specific data */
2785 if (stream_type == ASF_STREAM_EXT_EMBED_HEADER) {
2786 AsfExtStreamType ext_stream_type;
2787 gst_asf_demux_get_guid (&guid, &data, &size);
2788 ext_stream_type = gst_asf_demux_identify_guid (asf_ext_stream_guids, &guid);
2790 if (ext_stream_type == ASF_EXT_STREAM_AUDIO) {
2791 inspect_payload = TRUE;
2793 gst_asf_demux_get_guid (&guid, &data, &size);
2794 gst_asf_demux_get_uint32 (&data, &size);
2795 gst_asf_demux_get_uint32 (&data, &size);
2796 gst_asf_demux_get_uint32 (&data, &size);
2797 gst_asf_demux_get_guid (&guid, &data, &size);
2798 gst_asf_demux_get_uint32 (&data, &size);
2799 stream_type = ASF_STREAM_AUDIO;
2803 switch (stream_type) {
2804 case ASF_STREAM_AUDIO:{
2805 asf_stream_audio audio_object;
2807 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2808 goto not_enough_data;
2810 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2813 stream = gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2816 switch (correction_type) {
2817 case ASF_CORRECTION_ON:{
2818 guint span, packet_size, chunk_size, data_size, silence_data;
2820 GST_INFO ("Using error correction");
2822 if (size < (1 + 2 + 2 + 2 + 1))
2823 goto not_enough_data;
2825 span = gst_asf_demux_get_uint8 (&data, &size);
2826 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2827 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2828 data_size = gst_asf_demux_get_uint16 (&data, &size);
2829 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2831 stream->span = span;
2833 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2834 packet_size, chunk_size, data_size, span, silence_data);
2836 if (stream->span > 1) {
2837 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2838 /* Disable descrambling */
2841 /* FIXME: this else branch was added for
2842 * weird_al_yankovic - the saga begins.asf */
2843 stream->ds_packet_size = packet_size;
2844 stream->ds_chunk_size = chunk_size;
2847 /* Descambling is enabled */
2848 stream->ds_packet_size = packet_size;
2849 stream->ds_chunk_size = chunk_size;
2852 /* Now skip the rest of the silence data */
2854 gst_bytestream_flush (demux->bs, data_size - 1);
2856 /* FIXME: CHECKME. And why -1? */
2857 if (data_size > 1) {
2858 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2859 goto not_enough_data;
2865 case ASF_CORRECTION_OFF:{
2866 GST_INFO ("Error correction off");
2867 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2868 goto not_enough_data;
2872 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2873 ("Audio stream using unknown error correction"));
2880 case ASF_STREAM_VIDEO:{
2881 asf_stream_video_format video_format_object;
2882 asf_stream_video video_object;
2885 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2886 goto not_enough_data;
2888 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2890 GST_INFO ("object is a video stream with %u bytes of "
2891 "additional data", vsize);
2893 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2895 goto not_enough_data;
2898 stream = gst_asf_demux_add_video_stream (demux, &video_format_object,
2899 stream_id, &data, &size);
2905 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2907 demux->other_streams =
2908 g_slist_append (demux->other_streams, GINT_TO_POINTER (stream_id));
2913 stream->inspect_payload = inspect_payload;
2918 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2919 /* we'll error out later if we found no streams */
2924 static const gchar *
2925 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2929 const gchar *asf_name;
2930 const gchar *gst_name;
2933 "WM/Genre", GST_TAG_GENRE}, {
2934 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2935 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2936 "WM/Picture", GST_TAG_IMAGE}, {
2937 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2938 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2939 "WM/Year", GST_TAG_DATE_TIME}
2940 /* { "WM/Composer", GST_TAG_COMPOSER } */
2945 if (name_utf8 == NULL) {
2946 GST_WARNING ("Failed to convert name to UTF8, skipping");
2950 out = strlen (name_utf8);
2952 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2953 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2954 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2955 return tags[i].gst_name;
2962 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2964 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2968 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2970 if (taglist == NULL)
2973 if (gst_tag_list_is_empty (taglist)) {
2974 gst_tag_list_unref (taglist);
2978 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2979 gst_tag_list_set_scope (t, GST_TAG_SCOPE_GLOBAL);
2981 gst_tag_list_unref (demux->taglist);
2982 gst_tag_list_unref (taglist);
2984 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2987 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2988 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2989 #define ASF_DEMUX_DATA_TYPE_BOOL 2
2990 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2993 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2997 const guint8 *img_data = NULL;
2998 guint32 img_data_len = 0;
2999 guint8 pic_type = 0;
3001 gst_byte_reader_init (&r, tag_data, tag_data_len);
3003 /* skip mime type string (we don't trust it and do our own typefinding),
3004 * and also skip the description string, since we don't use it */
3005 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
3006 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
3007 !gst_byte_reader_skip_string_utf16 (&r) ||
3008 !gst_byte_reader_skip_string_utf16 (&r) ||
3009 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
3010 goto not_enough_data;
3014 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
3015 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
3021 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
3022 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
3027 /* Extended Content Description Object */
3028 static GstFlowReturn
3029 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
3032 /* Other known (and unused) 'text/unicode' metadata available :
3035 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
3036 * WMFSDKVersion = 9.00.00.2980
3037 * WMFSDKNeeded = 0.0.0.0000
3038 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
3039 * WM/Publisher = 4AD
3041 * WM/ProviderRating = 8
3042 * WM/ProviderStyle = Rock (similar to WM/Genre)
3043 * WM/GenreID (similar to WM/Genre)
3044 * WM/TrackNumber (same as WM/Track but as a string)
3046 * Other known (and unused) 'non-text' metadata available :
3052 * We might want to read WM/TrackNumber and use atoi() if we don't have
3056 GstTagList *taglist;
3057 guint16 blockcount, i;
3058 gboolean content3D = FALSE;
3062 const gchar *interleave_name;
3063 GstASF3DMode interleaving_type;
3064 } stereoscopic_layout_map[] = {
3066 "SideBySideRF", GST_ASF_3D_SIDE_BY_SIDE_HALF_RL}, {
3067 "SideBySideLF", GST_ASF_3D_SIDE_BY_SIDE_HALF_LR}, {
3068 "OverUnderRT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL}, {
3069 "OverUnderLT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR}, {
3070 "DualStream", GST_ASF_3D_DUAL_STREAM}
3072 GST_INFO_OBJECT (demux, "object is an extended content description");
3074 taglist = gst_tag_list_new_empty ();
3076 /* Content Descriptor Count */
3078 goto not_enough_data;
3080 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3082 for (i = 1; i <= blockcount; ++i) {
3083 const gchar *gst_tag_name;
3087 GValue tag_value = { 0, };
3090 gchar *name_utf8 = NULL;
3094 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
3095 goto not_enough_data;
3099 goto not_enough_data;
3101 /* Descriptor Value Data Type */
3102 datatype = gst_asf_demux_get_uint16 (&data, &size);
3104 /* Descriptor Value (not really a string, but same thing reading-wise) */
3105 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
3107 goto not_enough_data;
3111 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
3113 if (name_utf8 != NULL) {
3114 GST_DEBUG ("Found tag/metadata %s", name_utf8);
3116 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
3117 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
3120 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
3123 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
3126 /* get rid of tags with empty value */
3127 if (value_utf8 != NULL && *value_utf8 != '\0') {
3128 GST_DEBUG ("string value %s", value_utf8);
3130 value_utf8[out] = '\0';
3132 if (gst_tag_name != NULL) {
3133 if (strcmp (gst_tag_name, GST_TAG_DATE_TIME) == 0) {
3134 guint year = atoi (value_utf8);
3137 g_value_init (&tag_value, GST_TYPE_DATE_TIME);
3138 g_value_take_boxed (&tag_value, gst_date_time_new_y (year));
3140 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
3141 guint id3v1_genre_id;
3142 const gchar *genre_str;
3144 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
3145 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
3146 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
3147 g_free (value_utf8);
3148 value_utf8 = g_strdup (genre_str);
3153 /* convert tag from string to other type if required */
3154 tag_type = gst_tag_get_type (gst_tag_name);
3155 g_value_init (&tag_value, tag_type);
3156 if (!gst_value_deserialize (&tag_value, value_utf8)) {
3157 GValue from_val = { 0, };
3159 g_value_init (&from_val, G_TYPE_STRING);
3160 g_value_set_string (&from_val, value_utf8);
3161 if (!g_value_transform (&from_val, &tag_value)) {
3162 GST_WARNING_OBJECT (demux,
3163 "Could not transform string tag to " "%s tag type %s",
3164 gst_tag_name, g_type_name (tag_type));
3165 g_value_unset (&tag_value);
3167 g_value_unset (&from_val);
3172 GST_DEBUG ("Setting metadata");
3173 g_value_init (&tag_value, G_TYPE_STRING);
3174 g_value_set_string (&tag_value, value_utf8);
3175 /* If we found a stereoscopic marker, look for StereoscopicLayout
3179 if (strncmp ("StereoscopicLayout", name_utf8,
3180 strlen (name_utf8)) == 0) {
3181 for (i = 0; i < G_N_ELEMENTS (stereoscopic_layout_map); i++) {
3182 if (g_str_equal (stereoscopic_layout_map[i].interleave_name,
3184 demux->asf_3D_mode =
3185 stereoscopic_layout_map[i].interleaving_type;
3186 GST_INFO ("find interleave type %u", demux->asf_3D_mode);
3190 GST_INFO_OBJECT (demux, "3d type is %u", demux->asf_3D_mode);
3192 demux->asf_3D_mode = GST_ASF_3D_NONE;
3193 GST_INFO_OBJECT (demux, "None 3d type");
3196 } else if (value_utf8 == NULL) {
3197 GST_WARNING ("Failed to convert string value to UTF8, skipping");
3199 GST_DEBUG ("Skipping empty string value for %s",
3200 GST_STR_NULL (gst_tag_name));
3202 g_free (value_utf8);
3205 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
3207 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
3208 GST_FIXME ("Unhandled byte array tag %s",
3209 GST_STR_NULL (gst_tag_name));
3212 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
3218 case ASF_DEMUX_DATA_TYPE_DWORD:{
3219 guint uint_val = GST_READ_UINT32_LE (value);
3221 /* this is the track number */
3222 g_value_init (&tag_value, G_TYPE_UINT);
3224 /* WM/Track counts from 0 */
3225 if (!strcmp (name_utf8, "WM/Track"))
3228 g_value_set_uint (&tag_value, uint_val);
3232 case ASF_DEMUX_DATA_TYPE_BOOL:{
3233 gboolean bool_val = GST_READ_UINT32_LE (value);
3235 if (strncmp ("Stereoscopic", name_utf8, strlen (name_utf8)) == 0) {
3237 GST_INFO_OBJECT (demux, "This is 3D contents");
3240 GST_INFO_OBJECT (demux, "This is not 3D contenst");
3248 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
3253 if (G_IS_VALUE (&tag_value)) {
3255 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
3257 /* WM/TrackNumber is more reliable than WM/Track, since the latter
3258 * is supposed to have a 0 base but is often wrongly written to start
3259 * from 1 as well, so prefer WM/TrackNumber when we have it: either
3260 * replace the value added earlier from WM/Track or put it first in
3261 * the list, so that it will get picked up by _get_uint() */
3262 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
3263 merge_mode = GST_TAG_MERGE_REPLACE;
3265 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
3268 GST_DEBUG ("Setting global metadata %s", name_utf8);
3269 gst_structure_set_value (demux->global_metadata, name_utf8,
3273 g_value_unset (&tag_value);
3282 gst_asf_demux_add_global_tags (demux, taglist);
3289 GST_WARNING ("Unexpected end of data parsing ext content desc object");
3290 gst_tag_list_unref (taglist);
3291 return GST_FLOW_OK; /* not really fatal */
3295 static GstStructure *
3296 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
3301 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
3303 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
3306 s = gst_caps_get_structure (demux->metadata, i);
3307 if (gst_structure_has_name (s, sname))
3311 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
3313 /* try lookup again; demux->metadata took ownership of the structure, so we
3314 * can't really make any assumptions about what happened to it, so we can't
3315 * just return it directly after appending it */
3316 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3319 static GstFlowReturn
3320 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
3323 guint16 blockcount, i;
3325 GST_INFO_OBJECT (demux, "object is a metadata object");
3327 /* Content Descriptor Count */
3329 goto not_enough_data;
3331 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3333 for (i = 0; i < blockcount; ++i) {
3335 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
3336 guint32 data_len, ival;
3339 if (size < (2 + 2 + 2 + 2 + 4))
3340 goto not_enough_data;
3342 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3343 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3344 name_len = gst_asf_demux_get_uint16 (&data, &size);
3345 data_type = gst_asf_demux_get_uint16 (&data, &size);
3346 data_len = gst_asf_demux_get_uint32 (&data, &size);
3348 if (size < name_len + data_len)
3349 goto not_enough_data;
3351 /* convert name to UTF-8 */
3352 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
3354 gst_asf_demux_skip_bytes (name_len, &data, &size);
3356 if (name_utf8 == NULL) {
3357 GST_WARNING ("Failed to convert value name to UTF8, skipping");
3358 gst_asf_demux_skip_bytes (data_len, &data, &size);
3362 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
3363 gst_asf_demux_skip_bytes (data_len, &data, &size);
3371 goto not_enough_data;
3374 ival = gst_asf_demux_get_uint32 (&data, &size);
3376 /* skip anything else there may be, just in case */
3377 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
3379 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3380 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
3384 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
3390 GST_WARNING ("Unexpected end of data parsing metadata object");
3391 return GST_FLOW_OK; /* not really fatal */
3395 static GstFlowReturn
3396 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
3398 GstFlowReturn ret = GST_FLOW_OK;
3399 guint32 i, num_objects;
3400 guint8 unknown G_GNUC_UNUSED;
3402 /* Get the rest of the header's header */
3403 if (size < (4 + 1 + 1))
3404 goto not_enough_data;
3406 num_objects = gst_asf_demux_get_uint32 (&data, &size);
3407 unknown = gst_asf_demux_get_uint8 (&data, &size);
3408 unknown = gst_asf_demux_get_uint8 (&data, &size);
3410 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
3412 /* Loop through the header's objects, processing those */
3413 for (i = 0; i < num_objects; ++i) {
3414 GST_INFO_OBJECT (demux, "reading header part %u", i);
3415 ret = gst_asf_demux_process_object (demux, &data, &size);
3416 if (ret != GST_FLOW_OK) {
3417 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
3426 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3427 ("short read parsing HEADER object"));
3428 return GST_FLOW_ERROR;
3432 static GstFlowReturn
3433 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
3435 guint64 creation_time G_GNUC_UNUSED;
3436 guint64 file_size G_GNUC_UNUSED;
3437 guint64 send_time G_GNUC_UNUSED;
3438 guint64 packets_count, play_time, preroll;
3439 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
3441 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
3442 goto not_enough_data;
3444 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
3445 file_size = gst_asf_demux_get_uint64 (&data, &size);
3446 creation_time = gst_asf_demux_get_uint64 (&data, &size);
3447 packets_count = gst_asf_demux_get_uint64 (&data, &size);
3448 play_time = gst_asf_demux_get_uint64 (&data, &size);
3449 send_time = gst_asf_demux_get_uint64 (&data, &size);
3450 preroll = gst_asf_demux_get_uint64 (&data, &size);
3451 flags = gst_asf_demux_get_uint32 (&data, &size);
3452 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3453 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3454 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3456 demux->broadcast = ! !(flags & 0x01);
3457 demux->seekable = ! !(flags & 0x02);
3459 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3460 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3461 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3463 if (demux->broadcast) {
3464 /* these fields are invalid if the broadcast flag is set */
3469 if (min_pktsize != max_pktsize)
3470 goto non_fixed_packet_size;
3472 demux->packet_size = max_pktsize;
3474 /* FIXME: do we need send_time as well? what is it? */
3475 if ((play_time * 100) >= (preroll * GST_MSECOND))
3476 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3478 demux->play_time = 0;
3480 demux->preroll = preroll * GST_MSECOND;
3482 /* initial latency */
3483 demux->latency = demux->preroll;
3485 if (demux->play_time == 0)
3486 demux->seekable = FALSE;
3488 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3489 GST_TIME_ARGS (demux->play_time));
3490 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3491 GST_TIME_ARGS (demux->preroll));
3493 if (demux->play_time > 0) {
3494 demux->segment.duration = demux->play_time;
3497 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3499 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3504 non_fixed_packet_size:
3506 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3507 ("packet size must be fixed"));
3508 return GST_FLOW_ERROR;
3512 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3513 ("short read parsing FILE object"));
3514 return GST_FLOW_ERROR;
3518 /* Content Description Object */
3519 static GstFlowReturn
3520 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3524 const gchar *gst_tag;
3529 GST_TAG_TITLE, 0, NULL}, {
3530 GST_TAG_ARTIST, 0, NULL}, {
3531 GST_TAG_COPYRIGHT, 0, NULL}, {
3532 GST_TAG_DESCRIPTION, 0, NULL}, {
3533 GST_TAG_COMMENT, 0, NULL}
3535 GstTagList *taglist;
3536 GValue value = { 0 };
3540 GST_INFO_OBJECT (demux, "object is a comment");
3542 if (size < (2 + 2 + 2 + 2 + 2))
3543 goto not_enough_data;
3545 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3546 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3547 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3548 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3549 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3551 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3552 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3553 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3555 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3556 if (size < tags[i].val_length)
3557 goto not_enough_data;
3559 /* might be just '/0', '/0'... */
3560 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3561 /* convert to UTF-8 */
3562 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3563 "UTF-8", "UTF-16LE", &in, &out, NULL);
3565 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3568 /* parse metadata into taglist */
3569 taglist = gst_tag_list_new_empty ();
3570 g_value_init (&value, G_TYPE_STRING);
3571 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3572 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3573 g_value_set_string (&value, tags[i].val_utf8);
3574 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3575 tags[i].gst_tag, &value, NULL);
3578 g_value_unset (&value);
3580 gst_asf_demux_add_global_tags (demux, taglist);
3582 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3583 g_free (tags[i].val_utf8);
3589 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3590 "comment tag section %d, skipping comment object", i);
3591 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3592 g_free (tags[i].val_utf8);
3593 return GST_FLOW_OK; /* not really fatal */
3597 static GstFlowReturn
3598 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3601 guint16 num_streams, i;
3605 goto not_enough_data;
3607 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3609 GST_INFO ("object is a bitrate properties object with %u streams",
3612 if (size < (num_streams * (2 + 4)))
3613 goto not_enough_data;
3615 for (i = 0; i < num_streams; ++i) {
3619 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3620 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3622 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3623 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3624 stream = gst_asf_demux_get_stream (demux, stream_id);
3626 if (stream->pending_tags == NULL) {
3627 stream->pending_tags =
3628 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3631 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3634 GST_WARNING ("stream id %u is too large", stream_id);
3642 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3643 return GST_FLOW_OK; /* not really fatal */
3647 static GstFlowReturn
3648 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3651 GstFlowReturn ret = GST_FLOW_OK;
3654 /* Get the rest of the header's header */
3655 if (size < (16 + 2 + 4))
3656 goto not_enough_data;
3658 /* skip GUID and two other bytes */
3659 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3660 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3662 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3664 /* FIXME: does data_size include the rest of the header that we have read? */
3665 if (hdr_size > size)
3666 goto not_enough_data;
3668 while (hdr_size > 0) {
3669 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3670 if (ret != GST_FLOW_OK)
3678 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3679 ("short read parsing extended header object"));
3680 return GST_FLOW_ERROR;
3684 static GstFlowReturn
3685 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3691 goto not_enough_data;
3693 if (demux->languages) {
3694 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3695 g_strfreev (demux->languages);
3696 demux->languages = NULL;
3697 demux->num_languages = 0;
3700 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3701 GST_LOG ("%u languages:", demux->num_languages);
3703 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3704 for (i = 0; i < demux->num_languages; ++i) {
3705 guint8 len, *lang_data = NULL;
3708 goto not_enough_data;
3709 len = gst_asf_demux_get_uint8 (&data, &size);
3710 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3713 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3716 /* truncate "en-us" etc. to just "en" */
3717 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3720 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3721 demux->languages[i] = utf8;
3724 goto not_enough_data;
3732 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3733 g_free (demux->languages);
3734 demux->languages = NULL;
3735 return GST_FLOW_OK; /* not fatal */
3739 static GstFlowReturn
3740 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3743 GstClockTime interval;
3746 if (size < (16 + 8 + 4 + 4))
3747 goto not_enough_data;
3750 gst_asf_demux_skip_bytes (16, &data, &size);
3751 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3752 gst_asf_demux_skip_bytes (4, &data, &size);
3753 count = gst_asf_demux_get_uint32 (&data, &size);
3755 demux->sidx_interval = interval;
3756 demux->sidx_num_entries = count;
3757 g_free (demux->sidx_entries);
3758 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3760 for (i = 0; i < count; ++i) {
3761 if (G_UNLIKELY (size < 6)) {
3762 /* adjust for broken files, to avoid having entries at the end
3763 * of the parsed index that point to time=0. Resulting in seeking to
3764 * the end of the file leading back to the beginning */
3765 demux->sidx_num_entries -= (count - i);
3768 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3769 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3770 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3771 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3772 demux->sidx_entries[i].count);
3775 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3782 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3783 return GST_FLOW_OK; /* not fatal */
3787 static GstFlowReturn
3788 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3789 guint8 * data, guint64 size)
3794 if (size < 16 + 2 + (2 * 2))
3795 goto not_enough_data;
3797 gst_asf_demux_get_guid (&guid, &data, &size);
3798 num = gst_asf_demux_get_uint16 (&data, &size);
3801 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3805 if (size < (num * sizeof (guint16)))
3806 goto not_enough_data;
3808 /* read mutually exclusive stream numbers */
3809 for (i = 0; i < num; ++i) {
3811 mes = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3812 GST_LOG_OBJECT (demux, "mutually exclusive: stream %d", mes);
3814 demux->mut_ex_streams =
3815 g_slist_append (demux->mut_ex_streams, GINT_TO_POINTER (mes));
3824 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3825 return GST_FLOW_OK; /* not absolutely fatal */
3830 gst_asf_demux_is_unknown_stream (GstASFDemux * demux, guint stream_num)
3832 return g_slist_find (demux->other_streams,
3833 GINT_TO_POINTER (stream_num)) == NULL;
3836 static GstFlowReturn
3837 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3840 AsfStreamExtProps esp;
3841 AsfStream *stream = NULL;
3842 AsfObject stream_obj;
3843 guint16 stream_name_count;
3844 guint16 num_payload_ext;
3846 guint8 *stream_obj_data = NULL;
3849 guint i, stream_num;
3852 obj_size = (guint) size;
3855 goto not_enough_data;
3858 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3859 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3860 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3861 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3862 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3863 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3864 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3865 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3866 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3867 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3868 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3869 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3870 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3871 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3872 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3874 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3875 GST_TIME_ARGS (esp.start_time));
3876 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3877 GST_TIME_ARGS (esp.end_time));
3878 GST_INFO ("flags = %08x", esp.flags);
3879 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3880 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3881 GST_INFO ("stream number = %u", stream_num);
3882 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3883 (esp.lang_idx < demux->num_languages) ?
3884 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3885 GST_INFO ("stream name count = %u", stream_name_count);
3887 /* read stream names */
3888 for (i = 0; i < stream_name_count; ++i) {
3889 guint16 stream_lang_idx G_GNUC_UNUSED;
3890 gchar *stream_name = NULL;
3893 goto not_enough_data;
3894 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3895 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3896 goto not_enough_data;
3897 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3898 g_free (stream_name); /* TODO: store names in struct */
3901 /* read payload extension systems stuff */
3902 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3904 if (num_payload_ext > 0)
3905 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3907 esp.payload_extensions = NULL;
3909 for (i = 0; i < num_payload_ext; ++i) {
3910 AsfPayloadExtension ext;
3912 guint32 sys_info_len;
3914 if (size < 16 + 2 + 4)
3915 goto not_enough_data;
3917 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3918 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3919 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3921 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3922 GST_LOG ("payload systems info len = %u", sys_info_len);
3923 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3924 goto not_enough_data;
3926 esp.payload_extensions[i] = ext;
3929 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3931 /* there might be an optional STREAM_INFO object here now; if not, we
3932 * should have parsed the corresponding stream info object already (since
3933 * we are parsing the extended stream properties objects delayed) */
3935 stream = gst_asf_demux_get_stream (demux, stream_num);
3939 /* get size of the stream object */
3940 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3941 goto not_enough_data;
3943 if (stream_obj.id != ASF_OBJ_STREAM)
3944 goto expected_stream_object;
3946 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3947 stream_obj.size > (10 * 1024 * 1024))
3948 goto not_enough_data;
3950 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3952 /* process this stream object later after all the other 'normal' ones
3953 * have been processed (since the others are more important/non-hidden) */
3954 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3955 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3956 goto not_enough_data;
3958 /* parse stream object */
3959 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3960 g_free (stream_obj_data);
3965 stream->ext_props = esp;
3967 /* try to set the framerate */
3968 if (stream->is_video && stream->caps) {
3969 GValue framerate = { 0 };
3973 g_value_init (&framerate, GST_TYPE_FRACTION);
3975 num = GST_SECOND / 100;
3976 denom = esp.avg_time_per_frame;
3978 /* avoid division by 0, assume 25/1 framerate */
3979 denom = GST_SECOND / 2500;
3982 gst_value_set_fraction (&framerate, num, denom);
3984 stream->caps = gst_caps_make_writable (stream->caps);
3985 s = gst_caps_get_structure (stream->caps, 0);
3986 gst_structure_set_value (s, "framerate", &framerate);
3987 g_value_unset (&framerate);
3988 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3989 num, denom, ((gdouble) num) / denom);
3992 /* add language info now if we have it */
3993 if (stream->ext_props.lang_idx < demux->num_languages) {
3994 if (stream->pending_tags == NULL)
3995 stream->pending_tags = gst_tag_list_new_empty ();
3996 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3997 demux->languages[stream->ext_props.lang_idx]);
3998 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3999 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
4002 } else if (gst_asf_demux_is_unknown_stream (demux, stream_num)) {
4003 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
4011 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
4012 return GST_FLOW_OK; /* not absolutely fatal */
4014 expected_stream_object:
4016 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
4017 "object: expected embedded stream object, but got %s object instead!",
4018 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
4019 return GST_FLOW_OK; /* not absolutely fatal */
4023 static const gchar *
4024 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
4028 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
4029 if (g_str_has_prefix (nick, "ASF_OBJ_"))
4030 nick += strlen ("ASF_OBJ_");
4032 if (demux->objpath == NULL) {
4033 demux->objpath = g_strdup (nick);
4037 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
4038 g_free (demux->objpath);
4039 demux->objpath = newpath;
4042 return (const gchar *) demux->objpath;
4046 gst_asf_demux_pop_obj (GstASFDemux * demux)
4050 if ((s = g_strrstr (demux->objpath, "/"))) {
4053 g_free (demux->objpath);
4054 demux->objpath = NULL;
4059 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
4064 /* Parse the queued extended stream property objects and add the info
4065 * to the existing streams or add the new embedded streams, but without
4066 * activating them yet */
4067 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
4068 g_slist_length (demux->ext_stream_props));
4070 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
4071 GstBuffer *buf = GST_BUFFER (l->data);
4074 gst_buffer_map (buf, &map, GST_MAP_READ);
4076 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
4077 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
4078 gst_buffer_unmap (buf, &map);
4079 gst_buffer_unref (buf);
4081 g_slist_free (demux->ext_stream_props);
4082 demux->ext_stream_props = NULL;
4087 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
4091 for (i = 0; i < demux->num_streams; ++i) {
4096 stream = &demux->stream[i];
4098 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
4100 if (stream->active) {
4101 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
4106 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
4109 /* check for each mutual exclusion whether it affects this stream */
4110 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4111 if (*mes == stream->id) {
4112 /* if yes, check if we've already added streams that are mutually
4113 * exclusive with the stream we're about to add */
4114 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4115 for (j = 0; j < demux->num_streams; ++j) {
4116 /* if the broadcast flag is set, assume the hidden streams aren't
4117 * actually streamed and hide them (or playbin won't work right),
4118 * otherwise assume their data is available */
4119 if (demux->stream[j].id == *mes && demux->broadcast) {
4121 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
4122 "mutually exclusive with already existing stream ID %d, "
4123 "hiding stream", stream->id, demux->stream[j].id);
4135 /* FIXME: we should do stream activation based on preroll data in
4136 * streaming mode too */
4137 if (demux->streaming && !is_hidden)
4138 gst_asf_demux_activate_stream (demux, stream);
4143 static GstFlowReturn
4144 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
4147 GstFlowReturn ret = GST_FLOW_OK;
4149 guint64 obj_data_size;
4151 if (*p_size < ASF_OBJECT_HEADER_SIZE)
4152 return ASF_FLOW_NEED_MORE_DATA;
4154 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
4155 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
4157 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
4159 if (*p_size < obj_data_size)
4160 return ASF_FLOW_NEED_MORE_DATA;
4162 gst_asf_demux_push_obj (demux, obj.id);
4164 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
4167 case ASF_OBJ_STREAM:
4168 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
4172 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
4174 case ASF_OBJ_HEADER:
4175 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
4177 case ASF_OBJ_COMMENT:
4178 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
4181 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
4183 case ASF_OBJ_BITRATE_PROPS:
4185 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
4188 case ASF_OBJ_EXT_CONTENT_DESC:
4190 gst_asf_demux_process_ext_content_desc (demux, *p_data,
4193 case ASF_OBJ_METADATA_OBJECT:
4194 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
4196 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
4199 /* process these later, we might not have parsed the corresponding
4200 * stream object yet */
4201 GST_LOG ("%s: queued for later parsing", demux->objpath);
4202 buf = gst_buffer_new_and_alloc (obj_data_size);
4203 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
4204 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
4208 case ASF_OBJ_LANGUAGE_LIST:
4209 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
4211 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
4212 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
4215 case ASF_OBJ_SIMPLE_INDEX:
4216 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
4218 case ASF_OBJ_CONTENT_ENCRYPTION:
4219 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
4220 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
4221 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
4222 goto error_encrypted;
4223 case ASF_OBJ_CONCEAL_NONE:
4225 case ASF_OBJ_UNDEFINED:
4226 case ASF_OBJ_CODEC_COMMENT:
4228 case ASF_OBJ_PADDING:
4229 case ASF_OBJ_BITRATE_MUTEX:
4230 case ASF_OBJ_COMPATIBILITY:
4231 case ASF_OBJ_INDEX_PLACEHOLDER:
4232 case ASF_OBJ_INDEX_PARAMETERS:
4233 case ASF_OBJ_STREAM_PRIORITIZATION:
4234 case ASF_OBJ_SCRIPT_COMMAND:
4235 case ASF_OBJ_METADATA_LIBRARY_OBJECT:
4237 /* Unknown/unhandled object, skip it and hope for the best */
4238 GST_INFO ("%s: skipping object", demux->objpath);
4243 /* this can't fail, we checked the number of bytes available before */
4244 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
4246 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
4248 gst_asf_demux_pop_obj (demux);
4255 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
4256 return GST_FLOW_ERROR;
4261 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
4262 GstBuffer ** p_buffer)
4264 GstBuffer *descrambled_buffer;
4265 GstBuffer *scrambled_buffer;
4266 GstBuffer *sub_buffer;
4273 /* descrambled_buffer is initialised in the first iteration */
4274 descrambled_buffer = NULL;
4275 scrambled_buffer = *p_buffer;
4277 if (gst_buffer_get_size (scrambled_buffer) <
4278 stream->ds_packet_size * stream->span)
4281 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
4282 offset += stream->ds_chunk_size) {
4283 off = offset / stream->ds_chunk_size;
4284 row = off / stream->span;
4285 col = off % stream->span;
4286 idx = row + col * stream->ds_packet_size / stream->ds_chunk_size;
4287 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
4288 col, off, stream->ds_chunk_size);
4289 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
4290 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
4291 stream->span, stream->ds_packet_size);
4292 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
4293 gst_buffer_get_size (scrambled_buffer));
4295 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_MEMORY,
4296 idx * stream->ds_chunk_size, stream->ds_chunk_size);
4298 descrambled_buffer = sub_buffer;
4300 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
4304 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
4305 GST_BUFFER_TIMESTAMP (scrambled_buffer);
4306 GST_BUFFER_DURATION (descrambled_buffer) =
4307 GST_BUFFER_DURATION (scrambled_buffer);
4308 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
4309 GST_BUFFER_OFFSET_END (descrambled_buffer) =
4310 GST_BUFFER_OFFSET_END (scrambled_buffer);
4312 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
4314 gst_buffer_unref (scrambled_buffer);
4315 *p_buffer = descrambled_buffer;
4319 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
4321 GstASFDemux *demux = GST_ASF_DEMUX (element);
4324 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
4326 for (i = 0; i < demux->num_streams; ++i) {
4327 gst_event_ref (event);
4328 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
4329 GST_OBJECT_CAST (element), event)) {
4330 gst_event_unref (event);
4335 gst_event_unref (event);
4339 /* takes ownership of the passed event */
4341 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
4343 gboolean ret = TRUE;
4346 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
4347 GST_EVENT_TYPE_NAME (event));
4349 for (i = 0; i < demux->num_streams; ++i) {
4350 gst_event_ref (event);
4351 ret &= gst_pad_push_event (demux->stream[i].pad, event);
4353 gst_event_unref (event);
4358 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
4362 gboolean res = FALSE;
4364 demux = GST_ASF_DEMUX (parent);
4366 GST_DEBUG ("handling %s query",
4367 gst_query_type_get_name (GST_QUERY_TYPE (query)));
4369 switch (GST_QUERY_TYPE (query)) {
4370 case GST_QUERY_DURATION:
4374 gst_query_parse_duration (query, &format, NULL);
4376 if (format != GST_FORMAT_TIME) {
4377 GST_LOG ("only support duration queries in TIME format");
4381 res = gst_pad_query_default (pad, parent, query);
4383 GST_OBJECT_LOCK (demux);
4385 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
4386 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
4387 GST_TIME_ARGS (demux->segment.duration));
4389 gst_query_set_duration (query, GST_FORMAT_TIME,
4390 demux->segment.duration);
4394 GST_LOG ("duration not known yet");
4397 GST_OBJECT_UNLOCK (demux);
4402 case GST_QUERY_POSITION:{
4405 gst_query_parse_position (query, &format, NULL);
4407 if (format != GST_FORMAT_TIME) {
4408 GST_LOG ("only support position queries in TIME format");
4412 GST_OBJECT_LOCK (demux);
4414 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
4415 GST_LOG ("returning position: %" GST_TIME_FORMAT,
4416 GST_TIME_ARGS (demux->segment.position));
4418 gst_query_set_position (query, GST_FORMAT_TIME,
4419 demux->segment.position);
4423 GST_LOG ("position not known yet");
4426 GST_OBJECT_UNLOCK (demux);
4430 case GST_QUERY_SEEKING:{
4433 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
4434 if (format == GST_FORMAT_TIME) {
4437 GST_OBJECT_LOCK (demux);
4438 duration = demux->segment.duration;
4439 GST_OBJECT_UNLOCK (demux);
4441 if (!demux->streaming || !demux->seekable) {
4442 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
4449 /* try upstream first in TIME */
4450 res = gst_pad_query_default (pad, parent, query);
4452 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
4453 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4454 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4455 /* if no luck, maybe in BYTES */
4456 if (!seekable || fmt != GST_FORMAT_TIME) {
4459 q = gst_query_new_seeking (GST_FORMAT_BYTES);
4460 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
4461 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
4462 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4463 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4464 if (fmt != GST_FORMAT_BYTES)
4467 gst_query_unref (q);
4468 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4474 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4478 case GST_QUERY_LATENCY:
4481 GstClockTime min, max;
4483 /* preroll delay does not matter in non-live pipeline,
4484 * but we might end up in a live (rtsp) one ... */
4487 res = gst_pad_query_default (pad, parent, query);
4491 gst_query_parse_latency (query, &live, &min, &max);
4493 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4494 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4495 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4497 GST_OBJECT_LOCK (demux);
4498 min += demux->latency;
4500 max += demux->latency;
4501 GST_OBJECT_UNLOCK (demux);
4503 gst_query_set_latency (query, live, min, max);
4506 case GST_QUERY_SEGMENT:
4511 format = demux->segment.format;
4514 gst_segment_to_stream_time (&demux->segment, format,
4515 demux->segment.start);
4516 if ((stop = demux->segment.stop) == -1)
4517 stop = demux->segment.duration;
4519 stop = gst_segment_to_stream_time (&demux->segment, format, stop);
4521 gst_query_set_segment (query, demux->segment.rate, format, start, stop);
4526 res = gst_pad_query_default (pad, parent, query);
4533 static GstStateChangeReturn
4534 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4536 GstASFDemux *demux = GST_ASF_DEMUX (element);
4537 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4539 switch (transition) {
4540 case GST_STATE_CHANGE_NULL_TO_READY:{
4541 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4542 demux->need_newsegment = TRUE;
4543 demux->segment_running = FALSE;
4544 demux->keyunit_sync = FALSE;
4545 demux->adapter = gst_adapter_new ();
4546 demux->metadata = gst_caps_new_empty ();
4547 demux->global_metadata = gst_structure_new_empty ("metadata");
4548 demux->data_size = 0;
4549 demux->data_offset = 0;
4550 demux->index_offset = 0;
4551 demux->base_offset = 0;
4552 demux->flowcombiner = gst_flow_combiner_new ();
4559 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4560 if (ret == GST_STATE_CHANGE_FAILURE)
4563 switch (transition) {
4564 case GST_STATE_CHANGE_PAUSED_TO_READY:
4565 gst_asf_demux_reset (demux, FALSE);
4568 case GST_STATE_CHANGE_READY_TO_NULL:
4569 gst_asf_demux_reset (demux, FALSE);
4570 gst_flow_combiner_free (demux->flowcombiner);
4571 demux->flowcombiner = NULL;