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>
45 #include "gstasfdemux.h"
46 #include "asfheaders.h"
47 #include "asfpacket.h"
49 static GstStaticPadTemplate gst_asf_demux_sink_template =
50 GST_STATIC_PAD_TEMPLATE ("sink",
53 GST_STATIC_CAPS ("video/x-ms-asf")
56 static GstStaticPadTemplate audio_src_template =
57 GST_STATIC_PAD_TEMPLATE ("audio_%u",
62 static GstStaticPadTemplate video_src_template =
63 GST_STATIC_PAD_TEMPLATE ("video_%u",
68 /* size of an ASF object header, ie. GUID (16 bytes) + object size (8 bytes) */
69 #define ASF_OBJECT_HEADER_SIZE (16+8)
71 /* FIXME: get rid of this */
72 /* abuse this GstFlowReturn enum for internal usage */
73 #define ASF_FLOW_NEED_MORE_DATA 99
75 #define gst_asf_get_flow_name(flow) \
76 (flow == ASF_FLOW_NEED_MORE_DATA) ? \
77 "need-more-data" : gst_flow_get_name (flow)
79 GST_DEBUG_CATEGORY (asfdemux_dbg);
81 static GstStateChangeReturn gst_asf_demux_change_state (GstElement * element,
82 GstStateChange transition);
83 static gboolean gst_asf_demux_element_send_event (GstElement * element,
85 static gboolean gst_asf_demux_send_event_unlocked (GstASFDemux * demux,
87 static gboolean gst_asf_demux_handle_src_query (GstPad * pad,
88 GstObject * parent, GstQuery * query);
89 static GstFlowReturn gst_asf_demux_chain (GstPad * pad, GstObject * parent,
91 static gboolean gst_asf_demux_sink_event (GstPad * pad, GstObject * parent,
93 static GstFlowReturn gst_asf_demux_process_object (GstASFDemux * demux,
94 guint8 ** p_data, guint64 * p_size);
95 static gboolean gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent);
96 static gboolean gst_asf_demux_activate_mode (GstPad * sinkpad,
97 GstObject * parent, GstPadMode mode, gboolean active);
98 static void gst_asf_demux_loop (GstASFDemux * demux);
100 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux);
101 static gboolean gst_asf_demux_pull_headers (GstASFDemux * demux);
102 static void gst_asf_demux_pull_indices (GstASFDemux * demux);
103 static void gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * asf);
105 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data);
106 static void gst_asf_demux_descramble_buffer (GstASFDemux * demux,
107 AsfStream * stream, GstBuffer ** p_buffer);
108 static void gst_asf_demux_activate_stream (GstASFDemux * demux,
110 static GstStructure *gst_asf_demux_get_metadata_for_stream (GstASFDemux * d,
112 static GstFlowReturn gst_asf_demux_push_complete_payloads (GstASFDemux * demux,
115 #define gst_asf_demux_parent_class parent_class
116 G_DEFINE_TYPE (GstASFDemux, gst_asf_demux, GST_TYPE_ELEMENT);
119 gst_asf_demux_class_init (GstASFDemuxClass * klass)
121 GstElementClass *gstelement_class;
123 gstelement_class = (GstElementClass *) klass;
125 gst_element_class_set_static_metadata (gstelement_class, "ASF Demuxer",
127 "Demultiplexes ASF Streams", "Owen Fraser-Green <owen@discobabe.net>");
129 gst_element_class_add_pad_template (gstelement_class,
130 gst_static_pad_template_get (&audio_src_template));
131 gst_element_class_add_pad_template (gstelement_class,
132 gst_static_pad_template_get (&video_src_template));
133 gst_element_class_add_pad_template (gstelement_class,
134 gst_static_pad_template_get (&gst_asf_demux_sink_template));
136 gstelement_class->change_state =
137 GST_DEBUG_FUNCPTR (gst_asf_demux_change_state);
138 gstelement_class->send_event =
139 GST_DEBUG_FUNCPTR (gst_asf_demux_element_send_event);
143 gst_asf_demux_free_stream (GstASFDemux * demux, AsfStream * stream)
145 gst_caps_replace (&stream->caps, NULL);
146 if (stream->pending_tags) {
147 gst_tag_list_unref (stream->pending_tags);
148 stream->pending_tags = NULL;
152 gst_element_remove_pad (GST_ELEMENT_CAST (demux), stream->pad);
154 gst_object_unref (stream->pad);
158 if (stream->payloads) {
159 while (stream->payloads->len > 0) {
163 last = stream->payloads->len - 1;
164 payload = &g_array_index (stream->payloads, AsfPayload, last);
165 gst_buffer_replace (&payload->buf, NULL);
166 g_array_remove_index (stream->payloads, last);
168 g_array_free (stream->payloads, TRUE);
169 stream->payloads = NULL;
171 if (stream->ext_props.valid) {
172 g_free (stream->ext_props.payload_extensions);
173 stream->ext_props.payload_extensions = NULL;
178 gst_asf_demux_reset (GstASFDemux * demux, gboolean chain_reset)
180 GST_LOG_OBJECT (demux, "resetting");
182 gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
183 demux->segment_running = FALSE;
184 if (demux->adapter && !chain_reset) {
185 gst_adapter_clear (demux->adapter);
186 g_object_unref (demux->adapter);
187 demux->adapter = NULL;
189 if (demux->taglist) {
190 gst_tag_list_unref (demux->taglist);
191 demux->taglist = NULL;
193 if (demux->metadata) {
194 gst_caps_unref (demux->metadata);
195 demux->metadata = NULL;
197 if (demux->global_metadata) {
198 gst_structure_free (demux->global_metadata);
199 demux->global_metadata = NULL;
202 demux->state = GST_ASF_DEMUX_STATE_HEADER;
203 g_free (demux->objpath);
204 demux->objpath = NULL;
205 g_strfreev (demux->languages);
206 demux->languages = NULL;
207 demux->num_languages = 0;
208 g_slist_foreach (demux->ext_stream_props, (GFunc) gst_mini_object_unref,
210 g_slist_free (demux->ext_stream_props);
211 demux->ext_stream_props = NULL;
213 while (demux->old_num_streams > 0) {
214 gst_asf_demux_free_stream (demux,
215 &demux->old_stream[demux->old_num_streams - 1]);
216 --demux->old_num_streams;
218 memset (demux->old_stream, 0, sizeof (demux->old_stream));
219 demux->old_num_streams = 0;
221 /* when resetting for a new chained asf, we don't want to remove the pads
222 * before adding the new ones */
224 memcpy (demux->old_stream, demux->stream, sizeof (demux->stream));
225 demux->old_num_streams = demux->num_streams;
226 demux->num_streams = 0;
229 while (demux->num_streams > 0) {
230 gst_asf_demux_free_stream (demux, &demux->stream[demux->num_streams - 1]);
231 --demux->num_streams;
233 memset (demux->stream, 0, sizeof (demux->stream));
235 /* do not remove those for not adding pads with same name */
236 demux->num_audio_streams = 0;
237 demux->num_video_streams = 0;
238 demux->have_group_id = FALSE;
239 demux->group_id = G_MAXUINT;
241 demux->num_streams = 0;
242 demux->activated_streams = FALSE;
243 demux->first_ts = GST_CLOCK_TIME_NONE;
244 demux->segment_ts = GST_CLOCK_TIME_NONE;
247 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
248 demux->state = GST_ASF_DEMUX_STATE_HEADER;
249 demux->seekable = FALSE;
250 demux->broadcast = FALSE;
251 demux->sidx_interval = 0;
252 demux->sidx_num_entries = 0;
253 g_free (demux->sidx_entries);
254 demux->sidx_entries = NULL;
256 demux->speed_packets = 1;
259 GST_LOG_OBJECT (demux, "Restarting");
260 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
261 demux->need_newsegment = TRUE;
262 demux->segment_seqnum = 0;
263 demux->segment_running = FALSE;
264 demux->accurate = FALSE;
265 demux->metadata = gst_caps_new_empty ();
266 demux->global_metadata = gst_structure_new_empty ("metadata");
267 demux->data_size = 0;
268 demux->data_offset = 0;
269 demux->index_offset = 0;
271 demux->base_offset = 0;
274 g_slist_free (demux->other_streams);
275 demux->other_streams = NULL;
279 gst_asf_demux_init (GstASFDemux * demux)
282 gst_pad_new_from_static_template (&gst_asf_demux_sink_template, "sink");
283 gst_pad_set_chain_function (demux->sinkpad,
284 GST_DEBUG_FUNCPTR (gst_asf_demux_chain));
285 gst_pad_set_event_function (demux->sinkpad,
286 GST_DEBUG_FUNCPTR (gst_asf_demux_sink_event));
287 gst_pad_set_activate_function (demux->sinkpad,
288 GST_DEBUG_FUNCPTR (gst_asf_demux_activate));
289 gst_pad_set_activatemode_function (demux->sinkpad,
290 GST_DEBUG_FUNCPTR (gst_asf_demux_activate_mode));
291 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
293 /* set initial state */
294 gst_asf_demux_reset (demux, FALSE);
298 gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent)
303 query = gst_query_new_scheduling ();
305 if (!gst_pad_peer_query (sinkpad, query)) {
306 gst_query_unref (query);
310 pull_mode = gst_query_has_scheduling_mode_with_flags (query,
311 GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
312 gst_query_unref (query);
317 GST_DEBUG_OBJECT (sinkpad, "activating pull");
318 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
322 GST_DEBUG_OBJECT (sinkpad, "activating push");
323 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
328 gst_asf_demux_activate_mode (GstPad * sinkpad, GstObject * parent,
329 GstPadMode mode, gboolean active)
334 demux = GST_ASF_DEMUX (parent);
337 case GST_PAD_MODE_PUSH:
338 demux->state = GST_ASF_DEMUX_STATE_HEADER;
339 demux->streaming = TRUE;
342 case GST_PAD_MODE_PULL:
344 demux->state = GST_ASF_DEMUX_STATE_HEADER;
345 demux->streaming = FALSE;
347 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_asf_demux_loop,
350 res = gst_pad_stop_task (sinkpad);
361 gst_asf_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
366 demux = GST_ASF_DEMUX (parent);
368 GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
369 switch (GST_EVENT_TYPE (event)) {
370 case GST_EVENT_SEGMENT:{
371 const GstSegment *segment;
373 gst_event_parse_segment (event, &segment);
375 if (segment->format == GST_FORMAT_BYTES) {
376 if (demux->packet_size && segment->start > demux->data_offset)
377 demux->packet = (segment->start - demux->data_offset) /
381 } else if (segment->format == GST_FORMAT_TIME) {
382 /* do not know packet position, not really a problem */
385 GST_WARNING_OBJECT (demux, "unsupported newsegment format, ignoring");
386 gst_event_unref (event);
390 /* record upstream segment for interpolation */
391 if (segment->format != demux->in_segment.format)
392 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
393 gst_segment_copy_into (segment, &demux->in_segment);
395 /* in either case, clear some state and generate newsegment later on */
396 GST_OBJECT_LOCK (demux);
397 demux->segment_ts = GST_CLOCK_TIME_NONE;
398 demux->in_gap = GST_CLOCK_TIME_NONE;
399 demux->need_newsegment = TRUE;
400 demux->segment_seqnum = gst_event_get_seqnum (event);
401 gst_asf_demux_reset_stream_state_after_discont (demux);
402 GST_OBJECT_UNLOCK (demux);
404 gst_event_unref (event);
410 if (demux->state == GST_ASF_DEMUX_STATE_HEADER) {
411 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
412 (_("This stream contains no data.")),
413 ("got eos and didn't receive a complete header object"));
416 flow = gst_asf_demux_push_complete_payloads (demux, TRUE);
417 if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
418 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
419 (_("Internal data stream error.")),
420 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
424 GST_OBJECT_LOCK (demux);
425 gst_adapter_clear (demux->adapter);
426 GST_OBJECT_UNLOCK (demux);
427 gst_asf_demux_send_event_unlocked (demux, event);
431 case GST_EVENT_FLUSH_STOP:
432 GST_OBJECT_LOCK (demux);
433 gst_asf_demux_reset_stream_state_after_discont (demux);
434 GST_OBJECT_UNLOCK (demux);
435 gst_asf_demux_send_event_unlocked (demux, event);
436 /* upon activation, latency is no longer introduced, e.g. after seek */
437 if (demux->activated_streams)
442 ret = gst_pad_event_default (pad, parent, event);
450 gst_asf_demux_seek_index_lookup (GstASFDemux * demux, guint * packet,
451 GstClockTime seek_time, GstClockTime * p_idx_time, guint * speed,
452 gboolean next, gboolean * eos)
454 GstClockTime idx_time;
460 if (G_UNLIKELY (demux->sidx_num_entries == 0 || demux->sidx_interval == 0))
463 idx = (guint) ((seek_time + demux->preroll) / demux->sidx_interval);
466 /* if we want the next keyframe, we have to go forward till we find
467 a different packet number */
469 if (idx >= demux->sidx_num_entries - 1) {
470 /* If we get here, we're asking for next keyframe after the last one. There isn't one. */
475 for (idx2 = idx + 1; idx2 < demux->sidx_num_entries; ++idx2) {
476 if (demux->sidx_entries[idx].packet != demux->sidx_entries[idx2].packet) {
483 if (G_UNLIKELY (idx >= demux->sidx_num_entries)) {
489 *packet = demux->sidx_entries[idx].packet;
491 *speed = demux->sidx_entries[idx].count;
493 /* so we get closer to the actual time of the packet ... actually, let's not
494 * do this, since we throw away superfluous payloads before the seek position
495 * anyway; this way, our key unit seek 'snap resolution' is a bit better
496 * (ie. same as index resolution) */
498 while (idx > 0 && demux->sidx_entries[idx-1] == demux->sidx_entries[idx])
502 idx_time = demux->sidx_interval * idx;
503 if (G_LIKELY (idx_time >= demux->preroll))
504 idx_time -= demux->preroll;
506 GST_DEBUG_OBJECT (demux, "%" GST_TIME_FORMAT " => packet %u at %"
507 GST_TIME_FORMAT, GST_TIME_ARGS (seek_time), *packet,
508 GST_TIME_ARGS (idx_time));
510 if (G_LIKELY (p_idx_time))
511 *p_idx_time = idx_time;
517 gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * demux)
521 gst_adapter_clear (demux->adapter);
523 GST_DEBUG_OBJECT (demux, "reset stream state");
525 for (n = 0; n < demux->num_streams; n++) {
526 demux->stream[n].discont = TRUE;
527 demux->stream[n].last_flow = GST_FLOW_OK;
529 while (demux->stream[n].payloads->len > 0) {
533 last = demux->stream[n].payloads->len - 1;
534 payload = &g_array_index (demux->stream[n].payloads, AsfPayload, last);
535 gst_buffer_replace (&payload->buf, NULL);
536 g_array_remove_index (demux->stream[n].payloads, last);
542 gst_asf_demux_mark_discont (GstASFDemux * demux)
546 GST_DEBUG_OBJECT (demux, "Mark stream discont");
548 for (n = 0; n < demux->num_streams; n++)
549 demux->stream[n].discont = TRUE;
552 /* do a seek in push based mode */
554 gst_asf_demux_handle_seek_push (GstASFDemux * demux, GstEvent * event)
559 GstSeekType cur_type, stop_type;
563 GstEvent *byte_event;
565 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
568 stop_type = GST_SEEK_TYPE_NONE;
571 GST_DEBUG_OBJECT (demux, "seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (cur));
573 /* determine packet, by index or by estimation */
574 if (!gst_asf_demux_seek_index_lookup (demux, &packet, cur, NULL, NULL, FALSE,
577 (guint) gst_util_uint64_scale (demux->num_packets, cur,
581 if (packet > demux->num_packets) {
582 GST_DEBUG_OBJECT (demux, "could not determine packet to seek to, "
587 GST_DEBUG_OBJECT (demux, "seeking to packet %d", packet);
589 cur = demux->data_offset + (packet * demux->packet_size);
591 GST_DEBUG_OBJECT (demux, "Pushing BYTE seek rate %g, "
592 "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT, rate, cur, stop);
593 /* BYTE seek event */
594 byte_event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type,
595 cur, stop_type, stop);
596 gst_event_set_seqnum (byte_event, gst_event_get_seqnum (event));
597 res = gst_pad_push_event (demux->sinkpad, byte_event);
603 gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
605 GstClockTime idx_time;
608 GstSeekType cur_type, stop_type;
610 gboolean only_need_update;
611 gboolean keyunit_sync, after, before, next;
616 guint packet, speed_count = 1;
621 if (G_UNLIKELY (demux->seekable == FALSE || demux->packet_size == 0 ||
622 demux->num_packets == 0 || demux->play_time == 0)) {
623 GST_LOG_OBJECT (demux, "stream is not seekable");
627 if (G_UNLIKELY (!demux->activated_streams)) {
628 GST_LOG_OBJECT (demux, "streams not yet activated, ignoring seek");
632 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
634 seqnum = gst_event_get_seqnum (event);
636 if (G_UNLIKELY (format != GST_FORMAT_TIME)) {
637 GST_LOG_OBJECT (demux, "seeking is only supported in TIME format");
641 if (G_UNLIKELY (rate <= 0.0)) {
642 GST_LOG_OBJECT (demux, "backward playback is not supported yet");
646 flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
648 ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
649 keyunit_sync = ((flags & GST_SEEK_FLAG_KEY_UNIT) == GST_SEEK_FLAG_KEY_UNIT);
650 after = ((flags & GST_SEEK_FLAG_SNAP_AFTER) == GST_SEEK_FLAG_SNAP_AFTER);
651 before = ((flags & GST_SEEK_FLAG_SNAP_BEFORE) == GST_SEEK_FLAG_SNAP_BEFORE);
652 next = after && !before;
654 if (G_UNLIKELY (demux->streaming)) {
655 /* support it safely needs more segment handling, e.g. closing etc */
657 GST_LOG_OBJECT (demux, "streaming; non-flushing seek not supported");
660 /* we can (re)construct the start later on, but not the end */
661 if (stop_type != GST_SEEK_TYPE_NONE &&
662 (stop_type != GST_SEEK_TYPE_SET || GST_CLOCK_TIME_IS_VALID (stop))) {
663 GST_LOG_OBJECT (demux, "streaming; end position must be NONE");
666 gst_event_ref (event);
667 /* upstream might handle TIME seek, e.g. mms or rtsp,
668 * or not, e.g. http, then we give it a hand */
669 if (!gst_pad_push_event (demux->sinkpad, event))
670 return gst_asf_demux_handle_seek_push (demux, event);
675 /* unlock the streaming thread */
676 if (G_LIKELY (flush)) {
677 fevent = gst_event_new_flush_start ();
679 gst_event_set_seqnum (fevent, seqnum);
680 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
681 gst_asf_demux_send_event_unlocked (demux, fevent);
683 gst_pad_pause_task (demux->sinkpad);
686 /* grab the stream lock so that streaming cannot continue, for
687 * non flushing seeks when the element is in PAUSED this could block
689 GST_PAD_STREAM_LOCK (demux->sinkpad);
691 /* we now can stop flushing, since we have the stream lock now */
692 fevent = gst_event_new_flush_stop (TRUE);
693 gst_event_set_seqnum (fevent, seqnum);
694 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
696 if (G_LIKELY (flush))
697 gst_asf_demux_send_event_unlocked (demux, fevent);
699 gst_event_unref (fevent);
701 /* operating on copy of segment until we know the seek worked */
702 segment = demux->segment;
704 if (G_UNLIKELY (demux->segment_running && !flush)) {
705 GstSegment newsegment;
708 /* create the segment event to close the current segment */
709 gst_segment_copy_into (&segment, &newsegment);
710 newseg = gst_event_new_segment (&newsegment);
711 gst_event_set_seqnum (newseg, seqnum);
713 gst_asf_demux_send_event_unlocked (demux, newseg);
716 gst_segment_do_seek (&segment, rate, format, flags, cur_type,
717 cur, stop_type, stop, &only_need_update);
719 GST_DEBUG_OBJECT (demux, "seeking to time %" GST_TIME_FORMAT ", segment: "
720 "%" GST_SEGMENT_FORMAT, GST_TIME_ARGS (segment.start), &segment);
722 if (cur_type != GST_SEEK_TYPE_SET)
723 seek_time = segment.start;
727 /* FIXME: should check the KEY_UNIT flag; need to adjust position to
728 * real start of data and segment_start to indexed time for key unit seek*/
729 if (G_UNLIKELY (!gst_asf_demux_seek_index_lookup (demux, &packet, seek_time,
730 &idx_time, &speed_count, next, &eos))) {
734 demux->packet = demux->num_packets;
738 /* First try to query our source to see if it can convert for us. This is
739 the case when our source is an mms stream, notice that in this case
740 gstmms will do a time based seek to get the byte offset, this is not a
741 problem as the seek to this offset needs to happen anway. */
742 if (gst_pad_peer_query_convert (demux->sinkpad, GST_FORMAT_TIME, seek_time,
743 GST_FORMAT_BYTES, &offset)) {
744 packet = (offset - demux->data_offset) / demux->packet_size;
745 GST_LOG_OBJECT (demux, "convert %" GST_TIME_FORMAT
746 " to bytes query result: %" G_GINT64_FORMAT ", data_ofset: %"
747 G_GINT64_FORMAT ", packet_size: %u," " resulting packet: %u\n",
748 GST_TIME_ARGS (seek_time), offset, demux->data_offset,
749 demux->packet_size, packet);
751 /* FIXME: For streams containing video, seek to an earlier position in
752 * the hope of hitting a keyframe and let the sinks throw away the stuff
753 * before the segment start. For audio-only this is unnecessary as every
755 if (flush && (demux->accurate || (keyunit_sync && !next))
756 && demux->num_video_streams > 0) {
757 seek_time -= 5 * GST_SECOND;
762 packet = (guint) gst_util_uint64_scale (demux->num_packets,
763 seek_time, demux->play_time);
765 if (packet > demux->num_packets)
766 packet = demux->num_packets;
769 if (G_LIKELY (keyunit_sync)) {
770 GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
771 GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
772 GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
773 segment.start = idx_time;
774 segment.position = idx_time;
775 segment.time = idx_time;
779 GST_DEBUG_OBJECT (demux, "seeking to packet %u (%d)", packet, speed_count);
781 GST_OBJECT_LOCK (demux);
782 demux->segment = segment;
783 demux->packet = packet;
784 demux->need_newsegment = TRUE;
785 demux->segment_seqnum = seqnum;
786 demux->speed_packets = speed_count;
787 gst_asf_demux_reset_stream_state_after_discont (demux);
788 GST_OBJECT_UNLOCK (demux);
791 /* restart our task since it might have been stopped when we did the flush */
792 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_asf_demux_loop,
795 /* streaming can continue now */
796 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
802 gst_asf_demux_handle_src_event (GstPad * pad, GstObject * parent,
808 demux = GST_ASF_DEMUX (parent);
810 switch (GST_EVENT_TYPE (event)) {
812 GST_LOG_OBJECT (pad, "seek event");
813 ret = gst_asf_demux_handle_seek_event (demux, event);
814 gst_event_unref (event);
817 case GST_EVENT_NAVIGATION:
818 /* just drop these two silently */
819 gst_event_unref (event);
823 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
824 ret = gst_pad_event_default (pad, parent, event);
831 static inline guint32
832 gst_asf_demux_identify_guid (const ASFGuidHash * guids, ASFGuid * guid)
836 ret = gst_asf_identify_guid (guids, guid);
838 GST_LOG ("%s 0x%08x-0x%08x-0x%08x-0x%08x",
839 gst_asf_get_guid_nick (guids, ret),
840 guid->v1, guid->v2, guid->v3, guid->v4);
852 /* expect is true when the user is expeting an object,
853 * when false, it will give no warnings if the object
857 asf_demux_peek_object (GstASFDemux * demux, const guint8 * data,
858 guint data_len, AsfObject * object, gboolean expect)
862 if (data_len < ASF_OBJECT_HEADER_SIZE)
865 guid.v1 = GST_READ_UINT32_LE (data + 0);
866 guid.v2 = GST_READ_UINT32_LE (data + 4);
867 guid.v3 = GST_READ_UINT32_LE (data + 8);
868 guid.v4 = GST_READ_UINT32_LE (data + 12);
870 object->size = GST_READ_UINT64_LE (data + 16);
872 /* FIXME: make asf_demux_identify_object_guid() */
873 object->id = gst_asf_demux_identify_guid (asf_object_guids, &guid);
874 if (object->id == ASF_OBJ_UNDEFINED && expect) {
875 GST_WARNING_OBJECT (demux, "Unknown object %08x-%08x-%08x-%08x",
876 guid.v1, guid.v2, guid.v3, guid.v4);
883 gst_asf_demux_release_old_pads (GstASFDemux * demux)
885 GST_DEBUG_OBJECT (demux, "Releasing old pads");
887 while (demux->old_num_streams > 0) {
888 gst_pad_push_event (demux->old_stream[demux->old_num_streams - 1].pad,
889 gst_event_new_eos ());
890 gst_asf_demux_free_stream (demux,
891 &demux->old_stream[demux->old_num_streams - 1]);
892 --demux->old_num_streams;
894 memset (demux->old_stream, 0, sizeof (demux->old_stream));
895 demux->old_num_streams = 0;
899 gst_asf_demux_chain_headers (GstASFDemux * demux)
903 guint8 *header_data, *data = NULL;
904 const guint8 *cdata = NULL;
907 cdata = (guint8 *) gst_adapter_map (demux->adapter, ASF_OBJECT_HEADER_SIZE);
911 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
912 if (obj.id != ASF_OBJ_HEADER)
915 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
917 /* + 50 for non-packet data at beginning of ASF_OBJ_DATA */
918 if (gst_adapter_available (demux->adapter) < obj.size + 50)
921 data = gst_adapter_take (demux->adapter, obj.size + 50);
924 header_size = obj.size;
925 flow = gst_asf_demux_process_object (demux, &header_data, &header_size);
926 if (flow != GST_FLOW_OK)
929 /* calculate where the packet data starts */
930 demux->data_offset = obj.size + 50;
932 /* now parse the beginning of the ASF_OBJ_DATA object */
933 if (!gst_asf_demux_parse_data_object_start (demux, data + obj.size))
936 if (demux->num_streams == 0)
945 GST_LOG_OBJECT (demux, "not enough data in adapter yet");
952 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
953 ("This doesn't seem to be an ASF file"));
955 return GST_FLOW_ERROR;
960 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
961 ("header parsing failed, or no streams found, flow = %s",
962 gst_flow_get_name (flow)));
964 return GST_FLOW_ERROR;
969 gst_asf_demux_aggregate_flow_return (GstASFDemux * demux, AsfStream * stream,
974 GST_DEBUG_OBJECT (demux, "Aggregating");
976 /* Store the value */
977 stream->last_flow = flow;
979 /* any other error that is not not-linked can be returned right away */
980 if (flow != GST_FLOW_NOT_LINKED)
983 for (i = 0; i < demux->num_streams; i++) {
984 if (demux->stream[i].active) {
985 flow = demux->stream[i].last_flow;
986 GST_DEBUG_OBJECT (demux, "Aggregating: flow %i return %s", i,
987 gst_flow_get_name (flow));
988 if (flow != GST_FLOW_NOT_LINKED)
993 /* If we got here, then all our active streams are not linked */
999 gst_asf_demux_pull_data (GstASFDemux * demux, guint64 offset, guint size,
1000 GstBuffer ** p_buf, GstFlowReturn * p_flow)
1005 GST_LOG_OBJECT (demux, "pulling buffer at %" G_GUINT64_FORMAT "+%u",
1008 flow = gst_pad_pull_range (demux->sinkpad, offset, size, p_buf);
1010 if (G_LIKELY (p_flow))
1013 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1014 GST_DEBUG_OBJECT (demux, "flow %s pulling buffer at %" G_GUINT64_FORMAT
1015 "+%u", gst_flow_get_name (flow), offset, size);
1020 g_assert (*p_buf != NULL);
1022 buffer_size = gst_buffer_get_size (*p_buf);
1023 if (G_UNLIKELY (buffer_size < size)) {
1024 GST_DEBUG_OBJECT (demux, "short read pulling buffer at %" G_GUINT64_FORMAT
1025 "+%u (got only %" G_GSIZE_FORMAT " bytes)", offset, size, buffer_size);
1026 gst_buffer_unref (*p_buf);
1027 if (G_LIKELY (p_flow))
1028 *p_flow = GST_FLOW_EOS;
1037 gst_asf_demux_pull_indices (GstASFDemux * demux)
1039 GstBuffer *buf = NULL;
1043 offset = demux->index_offset;
1045 if (G_UNLIKELY (offset == 0)) {
1046 GST_DEBUG_OBJECT (demux, "can't read indices, don't know index offset");
1050 while (gst_asf_demux_pull_data (demux, offset, 16 + 8, &buf, NULL)) {
1056 gst_buffer_map (buf, &map, GST_MAP_READ);
1057 g_assert (map.size >= 16 + 8);
1058 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1059 gst_buffer_unmap (buf, &map);
1060 gst_buffer_replace (&buf, NULL);
1062 /* check for sanity */
1063 if (G_UNLIKELY (obj.size > (5 * 1024 * 1024))) {
1064 GST_DEBUG_OBJECT (demux, "implausible index object size, bailing out");
1068 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, offset, obj.size, &buf,
1072 GST_LOG_OBJECT (demux, "index object at offset 0x%" G_GINT64_MODIFIER "X"
1073 ", size %u", offset, (guint) obj.size);
1075 offset += obj.size; /* increase before _process_object changes it */
1077 gst_buffer_map (buf, &map, GST_MAP_READ);
1078 g_assert (map.size >= obj.size);
1079 bufdata = (guint8 *) map.data;
1080 flow = gst_asf_demux_process_object (demux, &bufdata, &obj.size);
1081 gst_buffer_unmap (buf, &map);
1082 gst_buffer_replace (&buf, NULL);
1084 if (G_UNLIKELY (flow != GST_FLOW_OK))
1089 GST_DEBUG_OBJECT (demux, "read %u index objects", num_read);
1093 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data)
1097 asf_demux_peek_object (demux, data, 50, &obj, TRUE);
1098 if (obj.id != ASF_OBJ_DATA) {
1099 GST_WARNING_OBJECT (demux, "headers not followed by a DATA object");
1103 demux->state = GST_ASF_DEMUX_STATE_DATA;
1105 if (!demux->broadcast && obj.size > 50) {
1106 demux->data_size = obj.size - 50;
1107 /* CHECKME: for at least one file this is off by +158 bytes?! */
1108 demux->index_offset = demux->data_offset + demux->data_size;
1110 demux->data_size = 0;
1111 demux->index_offset = 0;
1116 if (!demux->broadcast) {
1117 /* skip object header (24 bytes) and file GUID (16 bytes) */
1118 demux->num_packets = GST_READ_UINT64_LE (data + (16 + 8) + 16);
1120 demux->num_packets = 0;
1123 if (demux->num_packets == 0)
1124 demux->seekable = FALSE;
1126 /* fallback in the unlikely case that headers are inconsistent, can't hurt */
1127 if (demux->data_size == 0 && demux->num_packets > 0) {
1128 demux->data_size = demux->num_packets * demux->packet_size;
1129 demux->index_offset = demux->data_offset + demux->data_size;
1132 /* process pending stream objects and create pads for those */
1133 gst_asf_demux_process_queued_extended_stream_objects (demux);
1135 GST_INFO_OBJECT (demux, "Stream has %" G_GUINT64_FORMAT " packets, "
1136 "data_offset=%" G_GINT64_FORMAT ", data_size=%" G_GINT64_FORMAT
1137 ", index_offset=%" G_GUINT64_FORMAT, demux->num_packets,
1138 demux->data_offset, demux->data_size, demux->index_offset);
1144 gst_asf_demux_pull_headers (GstASFDemux * demux)
1148 GstBuffer *buf = NULL;
1153 GST_LOG_OBJECT (demux, "reading headers");
1155 /* pull HEADER object header, so we know its size */
1156 if (!gst_asf_demux_pull_data (demux, demux->base_offset, 16 + 8, &buf, NULL))
1159 gst_buffer_map (buf, &map, GST_MAP_READ);
1160 g_assert (map.size >= 16 + 8);
1161 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1162 gst_buffer_unmap (buf, &map);
1163 gst_buffer_replace (&buf, NULL);
1165 if (obj.id != ASF_OBJ_HEADER)
1168 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
1170 /* pull HEADER object */
1171 if (!gst_asf_demux_pull_data (demux, demux->base_offset, obj.size, &buf,
1175 size = obj.size; /* don't want obj.size changed */
1176 gst_buffer_map (buf, &map, GST_MAP_READ);
1177 g_assert (map.size >= size);
1178 bufdata = (guint8 *) map.data;
1179 flow = gst_asf_demux_process_object (demux, &bufdata, &size);
1180 gst_buffer_unmap (buf, &map);
1181 gst_buffer_replace (&buf, NULL);
1183 if (flow != GST_FLOW_OK) {
1184 GST_WARNING_OBJECT (demux, "process_object: %s", gst_flow_get_name (flow));
1188 /* calculate where the packet data starts */
1189 demux->data_offset = demux->base_offset + obj.size + 50;
1191 /* now pull beginning of DATA object before packet data */
1192 if (!gst_asf_demux_pull_data (demux, demux->base_offset + obj.size, 50, &buf,
1196 gst_buffer_map (buf, &map, GST_MAP_READ);
1197 g_assert (map.size >= size);
1198 bufdata = (guint8 *) map.data;
1199 if (!gst_asf_demux_parse_data_object_start (demux, bufdata))
1202 if (demux->num_streams == 0)
1205 gst_buffer_unmap (buf, &map);
1206 gst_buffer_replace (&buf, NULL);
1214 gst_buffer_unmap (buf, &map);
1215 gst_buffer_replace (&buf, NULL);
1217 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1218 ("This doesn't seem to be an ASF file"));
1227 gst_buffer_unmap (buf, &map);
1228 gst_buffer_replace (&buf, NULL);
1229 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), (NULL));
1235 all_streams_prerolled (GstASFDemux * demux)
1237 GstClockTime preroll_time;
1238 guint i, num_no_data = 0;
1240 /* Allow at least 500ms of preroll_time */
1241 preroll_time = MAX (demux->preroll, 500 * GST_MSECOND);
1243 /* returns TRUE as long as there isn't a stream which (a) has data queued
1244 * and (b) the timestamp of last piece of data queued is < demux->preroll
1245 * AND there is at least one other stream with data queued */
1246 for (i = 0; i < demux->num_streams; ++i) {
1247 AsfPayload *last_payload = NULL;
1251 stream = &demux->stream[i];
1252 if (G_UNLIKELY (stream->payloads->len == 0)) {
1254 GST_LOG_OBJECT (stream->pad, "no data queued");
1258 /* find last payload with timestamp */
1259 for (last_idx = stream->payloads->len - 1;
1260 last_idx >= 0 && (last_payload == NULL
1261 || !GST_CLOCK_TIME_IS_VALID (last_payload->ts)); --last_idx) {
1262 last_payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1265 GST_LOG_OBJECT (stream->pad, "checking if %" GST_TIME_FORMAT " > %"
1266 GST_TIME_FORMAT, GST_TIME_ARGS (last_payload->ts),
1267 GST_TIME_ARGS (preroll_time));
1268 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (last_payload->ts)
1269 || last_payload->ts <= preroll_time)) {
1270 GST_LOG_OBJECT (stream->pad, "not beyond preroll point yet");
1275 if (G_UNLIKELY (num_no_data > 0))
1283 gst_asf_demux_have_mutually_exclusive_active_stream (GstASFDemux * demux,
1288 for (l = demux->mut_ex_streams; l != NULL; l = l->next) {
1291 /* check for each mutual exclusion group whether it affects this stream */
1292 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1293 if (*mes == stream->id) {
1294 /* we are in this group; let's check if we've already activated streams
1295 * that are in the same group (and hence mutually exclusive to this
1297 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1300 for (i = 0; i < demux->num_streams; ++i) {
1301 if (demux->stream[i].id == *mes && demux->stream[i].active) {
1302 GST_LOG_OBJECT (demux, "stream with ID %d is mutually exclusive "
1303 "to already active stream with ID %d", stream->id,
1304 demux->stream[i].id);
1309 /* we can only be in this group once, let's break out and move on to
1310 * the next mutual exclusion group */
1321 gst_asf_demux_check_segment_ts (GstASFDemux * demux, GstClockTime payload_ts)
1323 /* remember the first queued timestamp for the segment */
1324 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->segment_ts) &&
1325 GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1326 GST_DEBUG_OBJECT (demux, "segment ts: %" GST_TIME_FORMAT,
1327 GST_TIME_ARGS (demux->first_ts));
1328 demux->segment_ts = payload_ts;
1329 /* always note, but only determines segment when streaming */
1330 if (demux->streaming)
1331 gst_segment_do_seek (&demux->segment, demux->in_segment.rate,
1332 GST_FORMAT_TIME, (GstSeekFlags) demux->segment.flags,
1333 GST_SEEK_TYPE_SET, demux->segment_ts, GST_SEEK_TYPE_NONE, 0, NULL);
1338 gst_asf_demux_check_first_ts (GstASFDemux * demux, gboolean force)
1340 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1341 GstClockTime first_ts = GST_CLOCK_TIME_NONE;
1344 /* go trhough each stream, find smallest timestamp */
1345 for (i = 0; i < demux->num_streams; ++i) {
1348 GstClockTime stream_min_ts = GST_CLOCK_TIME_NONE;
1349 stream = &demux->stream[i];
1351 for (j = 0; j < stream->payloads->len; ++j) {
1352 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1353 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1354 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts)
1355 || stream_min_ts > payload->ts))
1356 stream_min_ts = payload->ts;
1359 /* if we don't have timestamp for this stream, wait for more data */
1360 if (!GST_CLOCK_TIME_IS_VALID (stream_min_ts) && !force)
1363 if (GST_CLOCK_TIME_IS_VALID (stream_min_ts) &&
1364 (!GST_CLOCK_TIME_IS_VALID (first_ts) || first_ts > stream_min_ts))
1365 first_ts = stream_min_ts;
1368 if (!GST_CLOCK_TIME_IS_VALID (first_ts)) /* can happen with force = TRUE */
1371 demux->first_ts = first_ts;
1373 /* update packets queued before we knew first timestamp */
1374 for (i = 0; i < demux->num_streams; ++i) {
1377 stream = &demux->stream[i];
1379 for (j = 0; j < stream->payloads->len; ++j) {
1380 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1381 if (GST_CLOCK_TIME_IS_VALID (payload->ts)) {
1382 if (payload->ts > first_ts)
1383 payload->ts -= first_ts;
1391 gst_asf_demux_check_segment_ts (demux, 0);
1397 gst_asf_demux_update_caps_from_payload (GstASFDemux * demux, AsfStream * stream)
1399 /* try to determine whether the stream is AC-3 or MPEG; In dvr-ms the codecTag is unreliable
1400 and often set wrong, inspecting the data is the only way that seem to be working */
1401 GstTypeFindProbability prob = GST_TYPE_FIND_NONE;
1402 GstCaps *caps = NULL;
1404 GstAdapter *adapter = gst_adapter_new ();
1406 for (i = 0; i < stream->payloads->len && prob < GST_TYPE_FIND_LIKELY; ++i) {
1408 AsfPayload *payload;
1411 payload = &g_array_index (stream->payloads, AsfPayload, i);
1412 gst_adapter_push (adapter, gst_buffer_ref (payload->buf));
1413 len = gst_adapter_available (adapter);
1414 data = gst_adapter_map (adapter, len);
1418 #define MIN_LENGTH 128
1420 /* look for the sync points */
1422 if (len < MIN_LENGTH || /* give typefind something to work on */
1423 (data[0] == 0x0b && data[1] == 0x77) || /* AC-3 sync point */
1424 (data[0] == 0xFF && ((data[1] & 0xF0) >> 4) == 0xF)) /* MPEG sync point */
1430 gst_caps_take (&caps, gst_type_find_helper_for_data (GST_OBJECT (demux),
1433 if (prob < GST_TYPE_FIND_LIKELY) {
1436 if (len > MIN_LENGTH)
1437 /* this wasn't it, look for another sync point */
1441 gst_adapter_unmap (adapter);
1444 gst_object_unref (adapter);
1447 gst_caps_take (&stream->caps, caps);
1455 gst_asf_demux_check_activate_streams (GstASFDemux * demux, gboolean force)
1459 if (demux->activated_streams)
1462 if (G_UNLIKELY (!gst_asf_demux_check_first_ts (demux, force)))
1465 if (!all_streams_prerolled (demux) && !force) {
1466 GST_DEBUG_OBJECT (demux, "not all streams with data beyond preroll yet");
1470 for (i = 0; i < demux->num_streams; ++i) {
1471 AsfStream *stream = &demux->stream[i];
1473 if (stream->payloads->len > 0) {
1475 if (stream->inspect_payload && /* dvr-ms required payload inspection */
1476 !stream->active && /* do not inspect active streams (caps were already set) */
1477 !gst_asf_demux_update_caps_from_payload (demux, stream) && /* failed to determine caps */
1478 stream->payloads->len < 20) { /* if we couldn't determine the caps from 20 packets then just give up and use whatever was in codecTag */
1479 /* try to gather some more data */
1482 /* we don't check mutual exclusion stuff here; either we have data for
1483 * a stream, then we active it, or we don't, then we'll ignore it */
1484 GST_LOG_OBJECT (stream->pad, "is prerolled - activate!");
1485 gst_asf_demux_activate_stream (demux, stream);
1487 GST_LOG_OBJECT (stream->pad, "no data, ignoring stream");
1491 gst_asf_demux_release_old_pads (demux);
1493 demux->activated_streams = TRUE;
1494 GST_LOG_OBJECT (demux, "signalling no more pads");
1495 gst_element_no_more_pads (GST_ELEMENT (demux));
1499 /* returns the stream that has a complete payload with the lowest timestamp
1500 * queued, or NULL (we push things by timestamp because during the internal
1501 * prerolling we might accumulate more data then the external queues can take,
1502 * so we'd lock up if we pushed all accumulated data for stream N in one go) */
1504 gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
1506 AsfPayload *best_payload = NULL;
1507 AsfStream *best_stream = NULL;
1510 for (i = 0; i < demux->num_streams; ++i) {
1514 stream = &demux->stream[i];
1516 /* Don't push any data until we have at least one payload that falls within
1517 * the current segment. This way we can remove out-of-segment payloads that
1518 * don't need to be decoded after a seek, sending only data from the
1519 * keyframe directly before our segment start */
1520 if (stream->payloads->len > 0) {
1521 AsfPayload *payload = NULL;
1524 /* find last payload with timestamp */
1525 for (last_idx = stream->payloads->len - 1;
1526 last_idx >= 0 && (payload == NULL
1527 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); --last_idx) {
1528 payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1531 /* if this is first payload after seek we might need to update the segment */
1532 if (GST_CLOCK_TIME_IS_VALID (payload->ts))
1533 gst_asf_demux_check_segment_ts (demux, payload->ts);
1535 if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1536 (payload->ts < demux->segment.start))) {
1537 if (G_UNLIKELY ((!demux->accurate) && payload->keyframe)) {
1538 GST_DEBUG_OBJECT (stream->pad,
1539 "Found keyframe, updating segment start to %" GST_TIME_FORMAT,
1540 GST_TIME_ARGS (payload->ts));
1541 demux->segment.start = payload->ts;
1542 demux->segment.time = payload->ts;
1544 GST_DEBUG_OBJECT (stream->pad, "Last queued payload has timestamp %"
1545 GST_TIME_FORMAT " which is before our segment start %"
1546 GST_TIME_FORMAT ", not pushing yet", GST_TIME_ARGS (payload->ts),
1547 GST_TIME_ARGS (demux->segment.start));
1552 /* Now see if there's a complete payload queued for this stream */
1555 /* find first complete payload with timestamp */
1557 j < stream->payloads->len && (payload == NULL
1558 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); ++j) {
1559 payload = &g_array_index (stream->payloads, AsfPayload, j);
1562 if (!gst_asf_payload_is_complete (payload))
1565 /* ... and whether its timestamp is lower than the current best */
1566 if (best_stream == NULL || best_payload->ts > payload->ts) {
1567 best_stream = stream;
1568 best_payload = payload;
1576 static GstFlowReturn
1577 gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
1580 GstFlowReturn ret = GST_FLOW_OK;
1582 if (G_UNLIKELY (!demux->activated_streams)) {
1583 if (!gst_asf_demux_check_activate_streams (demux, force))
1585 /* streams are now activated */
1588 while ((stream = gst_asf_demux_find_stream_with_complete_payload (demux))) {
1589 AsfPayload *payload;
1591 /* wait until we had a chance to "lock on" some payload's timestamp */
1592 if (G_UNLIKELY (demux->need_newsegment
1593 && !GST_CLOCK_TIME_IS_VALID (demux->segment_ts)))
1596 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1598 /* do we need to send a newsegment event */
1599 if ((G_UNLIKELY (demux->need_newsegment))) {
1600 GstEvent *segment_event;
1602 /* safe default if insufficient upstream info */
1603 if (!GST_CLOCK_TIME_IS_VALID (demux->in_gap))
1606 if (demux->segment.stop == GST_CLOCK_TIME_NONE &&
1607 demux->segment.duration > 0) {
1608 /* slight HACK; prevent clipping of last bit */
1609 demux->segment.stop = demux->segment.duration + demux->in_gap;
1612 /* FIXME : only if ACCURATE ! */
1613 if (G_LIKELY (!demux->accurate
1614 && (GST_CLOCK_TIME_IS_VALID (payload->ts)))) {
1615 GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
1616 GST_TIME_ARGS (payload->ts));
1617 demux->segment.start = payload->ts;
1618 demux->segment.time = payload->ts;
1621 GST_DEBUG_OBJECT (demux, "sending new-segment event %" GST_SEGMENT_FORMAT,
1624 /* note: we fix up all timestamps to start from 0, so this should be ok */
1625 segment_event = gst_event_new_segment (&demux->segment);
1626 if (demux->segment_seqnum)
1627 gst_event_set_seqnum (segment_event, demux->segment_seqnum);
1628 gst_asf_demux_send_event_unlocked (demux, segment_event);
1630 /* now post any global tags we may have found */
1631 if (demux->taglist == NULL) {
1632 demux->taglist = gst_tag_list_new_empty ();
1633 gst_tag_list_set_scope (demux->taglist, GST_TAG_SCOPE_GLOBAL);
1636 gst_tag_list_add (demux->taglist, GST_TAG_MERGE_REPLACE,
1637 GST_TAG_CONTAINER_FORMAT, "ASF", NULL);
1639 GST_DEBUG_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, demux->taglist);
1640 gst_asf_demux_send_event_unlocked (demux,
1641 gst_event_new_tag (demux->taglist));
1642 demux->taglist = NULL;
1644 demux->need_newsegment = FALSE;
1645 demux->segment_seqnum = 0;
1646 demux->segment_running = TRUE;
1649 /* Do we have tags pending for this stream? */
1650 if (G_UNLIKELY (stream->pending_tags)) {
1651 GST_LOG_OBJECT (stream->pad, "%" GST_PTR_FORMAT, stream->pending_tags);
1652 gst_pad_push_event (stream->pad,
1653 gst_event_new_tag (stream->pending_tags));
1654 stream->pending_tags = NULL;
1657 /* We have the whole packet now so we should push the packet to
1658 * the src pad now. First though we should check if we need to do
1660 if (G_UNLIKELY (stream->span > 1)) {
1661 gst_asf_demux_descramble_buffer (demux, stream, &payload->buf);
1664 payload->buf = gst_buffer_make_writable (payload->buf);
1666 if (G_LIKELY (!payload->keyframe)) {
1667 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DELTA_UNIT);
1670 if (G_UNLIKELY (stream->discont)) {
1671 GST_DEBUG_OBJECT (stream->pad, "marking DISCONT on stream");
1672 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1673 stream->discont = FALSE;
1676 if (G_UNLIKELY (stream->is_video && payload->par_x && payload->par_y &&
1677 (payload->par_x != stream->par_x) &&
1678 (payload->par_y != stream->par_y))) {
1679 GST_DEBUG ("Updating PAR (%d/%d => %d/%d)",
1680 stream->par_x, stream->par_y, payload->par_x, payload->par_y);
1681 stream->par_x = payload->par_x;
1682 stream->par_y = payload->par_y;
1683 stream->caps = gst_caps_make_writable (stream->caps);
1684 gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
1685 GST_TYPE_FRACTION, stream->par_x, stream->par_y, NULL);
1686 gst_pad_set_caps (stream->pad, stream->caps);
1689 if (G_UNLIKELY (stream->interlaced != payload->interlaced)) {
1690 GST_DEBUG ("Updating interlaced status (%d => %d)", stream->interlaced,
1691 payload->interlaced);
1692 stream->interlaced = payload->interlaced;
1693 stream->caps = gst_caps_make_writable (stream->caps);
1694 gst_caps_set_simple (stream->caps, "interlace-mode", G_TYPE_BOOLEAN,
1695 (stream->interlaced ? "mixed" : "progressive"), NULL);
1696 gst_pad_set_caps (stream->pad, stream->caps);
1699 /* (sort of) interpolate timestamps using upstream "frame of reference",
1700 * typically useful for live src, but might (unavoidably) mess with
1701 * position reporting if a live src is playing not so live content
1702 * (e.g. rtspsrc taking some time to fall back to tcp) */
1703 GST_BUFFER_PTS (payload->buf) = payload->ts;
1704 if (GST_BUFFER_PTS_IS_VALID (payload->buf)) {
1705 GST_BUFFER_PTS (payload->buf) += demux->in_gap;
1707 if (payload->duration == GST_CLOCK_TIME_NONE
1708 && stream->ext_props.avg_time_per_frame != 0)
1709 GST_BUFFER_DURATION (payload->buf) =
1710 stream->ext_props.avg_time_per_frame * 100;
1712 GST_BUFFER_DURATION (payload->buf) = payload->duration;
1714 /* FIXME: we should really set durations on buffers if we can */
1716 GST_LOG_OBJECT (stream->pad, "pushing buffer, ts=%" GST_TIME_FORMAT
1717 ", dur=%" GST_TIME_FORMAT " size=%" G_GSIZE_FORMAT,
1718 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (payload->buf)),
1719 GST_TIME_ARGS (GST_BUFFER_DURATION (payload->buf)),
1720 gst_buffer_get_size (payload->buf));
1722 if (stream->active) {
1723 ret = gst_pad_push (stream->pad, payload->buf);
1724 ret = gst_asf_demux_aggregate_flow_return (demux, stream, ret);
1726 gst_buffer_unref (payload->buf);
1729 payload->buf = NULL;
1730 g_array_remove_index (stream->payloads, 0);
1732 /* Break out as soon as we have an issue */
1733 if (G_UNLIKELY (ret != GST_FLOW_OK))
1741 gst_asf_demux_check_buffer_is_header (GstASFDemux * demux, GstBuffer * buf)
1745 g_assert (buf != NULL);
1747 GST_LOG_OBJECT (demux, "Checking if buffer is a header");
1749 gst_buffer_map (buf, &map, GST_MAP_READ);
1751 /* we return false on buffer too small */
1752 if (map.size < ASF_OBJECT_HEADER_SIZE) {
1753 gst_buffer_unmap (buf, &map);
1757 /* check if it is a header */
1758 asf_demux_peek_object (demux, map.data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
1759 gst_buffer_unmap (buf, &map);
1760 if (obj.id == ASF_OBJ_HEADER) {
1767 gst_asf_demux_check_chained_asf (GstASFDemux * demux)
1769 guint64 off = demux->data_offset + (demux->packet * demux->packet_size);
1770 GstFlowReturn ret = GST_FLOW_OK;
1771 GstBuffer *buf = NULL;
1772 gboolean header = FALSE;
1774 /* TODO maybe we should skip index objects after the data and look
1775 * further for a new header */
1776 if (gst_asf_demux_pull_data (demux, off, ASF_OBJECT_HEADER_SIZE, &buf, &ret)) {
1777 g_assert (buf != NULL);
1778 /* check if it is a header */
1779 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1780 GST_DEBUG_OBJECT (demux, "new base offset: %" G_GUINT64_FORMAT, off);
1781 demux->base_offset = off;
1785 gst_buffer_unref (buf);
1792 gst_asf_demux_loop (GstASFDemux * demux)
1794 GstFlowReturn flow = GST_FLOW_OK;
1795 GstBuffer *buf = NULL;
1797 gboolean sent_eos = FALSE;
1799 if (G_UNLIKELY (demux->state == GST_ASF_DEMUX_STATE_HEADER)) {
1800 if (!gst_asf_demux_pull_headers (demux)) {
1801 flow = GST_FLOW_ERROR;
1805 gst_asf_demux_pull_indices (demux);
1808 g_assert (demux->state == GST_ASF_DEMUX_STATE_DATA);
1810 if (G_UNLIKELY (demux->num_packets != 0
1811 && demux->packet >= demux->num_packets))
1814 GST_LOG_OBJECT (demux, "packet %u/%u", (guint) demux->packet + 1,
1815 (guint) demux->num_packets);
1817 off = demux->data_offset + (demux->packet * demux->packet_size);
1819 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, off,
1820 demux->packet_size * demux->speed_packets, &buf, &flow))) {
1821 GST_DEBUG_OBJECT (demux, "got flow %s", gst_flow_get_name (flow));
1822 if (flow == GST_FLOW_EOS)
1824 else if (flow == GST_FLOW_FLUSHING) {
1825 GST_DEBUG_OBJECT (demux, "Not fatal");
1831 if (G_LIKELY (demux->speed_packets == 1)) {
1832 GstAsfDemuxParsePacketError err;
1833 err = gst_asf_demux_parse_packet (demux, buf);
1834 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1835 /* when we don't know when the data object ends, we should check
1836 * for a chained asf */
1837 if (demux->num_packets == 0) {
1838 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1839 GST_INFO_OBJECT (demux, "Chained asf found");
1840 demux->base_offset = off;
1841 gst_asf_demux_reset (demux, TRUE);
1842 gst_buffer_unref (buf);
1846 /* FIXME: We should tally up fatal errors and error out only
1847 * after a few broken packets in a row? */
1849 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1850 gst_buffer_unref (buf);
1855 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1861 for (n = 0; n < demux->speed_packets; n++) {
1863 GstAsfDemuxParsePacketError err;
1866 gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL,
1867 n * demux->packet_size, demux->packet_size);
1868 err = gst_asf_demux_parse_packet (demux, sub);
1869 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1870 /* when we don't know when the data object ends, we should check
1871 * for a chained asf */
1872 if (demux->num_packets == 0) {
1873 if (gst_asf_demux_check_buffer_is_header (demux, sub)) {
1874 GST_INFO_OBJECT (demux, "Chained asf found");
1875 demux->base_offset = off + n * demux->packet_size;
1876 gst_asf_demux_reset (demux, TRUE);
1877 gst_buffer_unref (sub);
1878 gst_buffer_unref (buf);
1882 /* FIXME: We should tally up fatal errors and error out only
1883 * after a few broken packets in a row? */
1885 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1889 gst_buffer_unref (sub);
1891 if (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)
1892 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1898 /* reset speed pull */
1899 demux->speed_packets = 1;
1902 gst_buffer_unref (buf);
1904 if (G_UNLIKELY (demux->num_packets > 0
1905 && demux->packet >= demux->num_packets)) {
1906 GST_LOG_OBJECT (demux, "reached EOS");
1910 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1911 GST_DEBUG_OBJECT (demux, "pushing complete payloads failed");
1915 /* check if we're at the end of the configured segment */
1916 /* FIXME: check if segment end reached etc. */
1922 /* if we haven't activated our streams yet, this might be because we have
1923 * less data queued than required for preroll; force stream activation and
1924 * send any pending payloads before sending EOS */
1925 if (!demux->activated_streams)
1926 gst_asf_demux_push_complete_payloads (demux, TRUE);
1928 /* we want to push an eos or post a segment-done in any case */
1929 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1932 /* for segment playback we need to post when (in stream time)
1933 * we stopped, this is either stop (when set) or the duration. */
1934 if ((stop = demux->segment.stop) == -1)
1935 stop = demux->segment.duration;
1937 GST_INFO_OBJECT (demux, "Posting segment-done, at end of segment");
1938 gst_element_post_message (GST_ELEMENT_CAST (demux),
1939 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
1941 gst_asf_demux_send_event_unlocked (demux,
1942 gst_event_new_segment_done (GST_FORMAT_TIME, stop));
1943 } else if (flow != GST_FLOW_EOS) {
1944 /* check if we have a chained asf, in case, we don't eos yet */
1945 if (gst_asf_demux_check_chained_asf (demux)) {
1946 GST_INFO_OBJECT (demux, "Chained ASF starting");
1947 gst_asf_demux_reset (demux, TRUE);
1951 /* normal playback, send EOS to all linked pads */
1952 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
1953 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1955 /* ... and fall through to pause */
1959 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
1960 gst_flow_get_name (flow));
1961 demux->segment_running = FALSE;
1962 gst_pad_pause_task (demux->sinkpad);
1964 /* For the error cases (not EOS) */
1966 if (flow == GST_FLOW_EOS)
1967 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1968 else if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
1969 /* Post an error. Hopefully something else already has, but if not... */
1970 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1971 (_("Internal data stream error.")),
1972 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
1981 GST_DEBUG_OBJECT (demux, "Read failed, doh");
1982 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1983 flow = GST_FLOW_EOS;
1987 /* See FIXMEs above */
1990 gst_buffer_unref (buf);
1991 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1992 ("Error parsing ASF packet %u", (guint) demux->packet));
1993 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1994 flow = GST_FLOW_ERROR;
2000 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
2001 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
2002 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
2005 gst_asf_demux_check_header (GstASFDemux * demux)
2008 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
2009 ASF_OBJECT_HEADER_SIZE);
2010 if (cdata == NULL) /* need more data */
2011 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
2013 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE);
2014 if (obj.id != ASF_OBJ_HEADER) {
2015 return GST_ASF_DEMUX_CHECK_HEADER_NO;
2017 return GST_ASF_DEMUX_CHECK_HEADER_YES;
2021 static GstFlowReturn
2022 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
2024 GstFlowReturn ret = GST_FLOW_OK;
2027 demux = GST_ASF_DEMUX (parent);
2029 GST_LOG_OBJECT (demux,
2030 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
2031 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
2032 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
2034 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
2035 GST_DEBUG_OBJECT (demux, "received DISCONT");
2036 gst_asf_demux_mark_discont (demux);
2039 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
2040 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
2041 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
2042 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
2043 ", interpolation gap: %" GST_TIME_FORMAT,
2044 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
2047 gst_adapter_push (demux->adapter, buf);
2049 switch (demux->state) {
2050 case GST_ASF_DEMUX_STATE_INDEX:{
2051 gint result = gst_asf_demux_check_header (demux);
2052 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
2055 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
2056 /* we don't care about this, probably an index */
2057 /* TODO maybe would be smarter to skip all the indices
2058 * until we got a new header or EOS to decide */
2059 GST_LOG_OBJECT (demux, "Received index object, its EOS");
2062 GST_INFO_OBJECT (demux, "Chained asf starting");
2063 /* cleanup and get ready for a chained asf */
2064 gst_asf_demux_reset (demux, TRUE);
2068 case GST_ASF_DEMUX_STATE_HEADER:{
2069 ret = gst_asf_demux_chain_headers (demux);
2070 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
2072 /* otherwise fall through */
2074 case GST_ASF_DEMUX_STATE_DATA:
2078 data_size = demux->packet_size;
2080 while (gst_adapter_available (demux->adapter) >= data_size) {
2082 GstAsfDemuxParsePacketError err;
2084 /* we don't know the length of the stream
2085 * check for a chained asf everytime */
2086 if (demux->num_packets == 0) {
2087 gint result = gst_asf_demux_check_header (demux);
2089 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
2090 GST_INFO_OBJECT (demux, "Chained asf starting");
2091 /* cleanup and get ready for a chained asf */
2092 gst_asf_demux_reset (demux, TRUE);
2095 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2096 && demux->packet >= demux->num_packets)) {
2097 /* do not overshoot data section when streaming */
2101 buf = gst_adapter_take_buffer (demux->adapter, data_size);
2103 /* FIXME: We should tally up fatal errors and error out only
2104 * after a few broken packets in a row? */
2105 err = gst_asf_demux_parse_packet (demux, buf);
2107 gst_buffer_unref (buf);
2109 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
2110 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
2112 GST_WARNING_OBJECT (demux, "Parse error");
2114 if (demux->packet >= 0)
2117 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2118 && demux->packet >= demux->num_packets)) {
2119 demux->state = GST_ASF_DEMUX_STATE_INDEX;
2124 g_assert_not_reached ();
2128 if (ret != GST_FLOW_OK)
2129 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
2135 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
2141 static inline gboolean
2142 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
2144 if (*p_size < num_bytes)
2147 *p_data += num_bytes;
2148 *p_size -= num_bytes;
2152 static inline guint8
2153 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
2157 g_assert (*p_size >= 1);
2158 ret = GST_READ_UINT8 (*p_data);
2159 *p_data += sizeof (guint8);
2160 *p_size -= sizeof (guint8);
2164 static inline guint16
2165 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
2169 g_assert (*p_size >= 2);
2170 ret = GST_READ_UINT16_LE (*p_data);
2171 *p_data += sizeof (guint16);
2172 *p_size -= sizeof (guint16);
2176 static inline guint32
2177 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
2181 g_assert (*p_size >= 4);
2182 ret = GST_READ_UINT32_LE (*p_data);
2183 *p_data += sizeof (guint32);
2184 *p_size -= sizeof (guint32);
2188 static inline guint64
2189 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
2193 g_assert (*p_size >= 8);
2194 ret = GST_READ_UINT64_LE (*p_data);
2195 *p_data += sizeof (guint64);
2196 *p_size -= sizeof (guint64);
2201 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2202 guint8 ** p_data, guint64 * p_size)
2206 if (*p_size < num_bytes_to_read)
2209 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2210 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2212 *p_data += num_bytes_to_read;
2213 *p_size -= num_bytes_to_read;
2219 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2220 guint8 ** p_data, guint64 * p_size)
2224 if (*p_size < num_bytes_to_read)
2227 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2228 *p_data += num_bytes_to_read;
2229 *p_size -= num_bytes_to_read;
2234 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2235 guint8 ** p_data, guint64 * p_size)
2245 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2248 *p_strlen = s_length;
2250 if (s_length == 0) {
2251 GST_WARNING ("zero-length string");
2252 *p_str = g_strdup ("");
2256 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2259 g_assert (s != NULL);
2261 /* just because They don't exist doesn't
2262 * mean They are not out to get you ... */
2263 if (s[s_length - 1] != '\0') {
2264 s = g_realloc (s, s_length + 1);
2268 *p_str = (gchar *) s;
2274 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2276 g_assert (*p_size >= 4 * sizeof (guint32));
2278 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2279 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2280 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2281 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2285 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2288 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2291 /* WAVEFORMATEX Structure */
2292 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2293 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2294 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2295 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2296 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2297 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2298 /* Codec specific data size */
2299 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2304 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2307 if (*p_size < (4 + 4 + 1 + 2))
2310 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2311 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2312 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2313 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2318 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2319 guint8 ** p_data, guint64 * p_size)
2321 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2324 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2325 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2326 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2327 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2328 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2329 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2330 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2331 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2332 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2333 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2334 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2339 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2343 for (i = 0; i < demux->num_streams; i++) {
2344 if (demux->stream[i].id == id)
2345 return &demux->stream[i];
2348 if (gst_asf_demux_is_unknown_stream (demux, id))
2349 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2354 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2355 GstCaps * caps, guint16 id, gboolean is_video, GstTagList * tags)
2359 gst_pad_use_fixed_caps (src_pad);
2360 gst_pad_set_caps (src_pad, caps);
2362 gst_pad_set_event_function (src_pad,
2363 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2364 gst_pad_set_query_function (src_pad,
2365 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2367 stream = &demux->stream[demux->num_streams];
2368 stream->caps = caps;
2369 stream->pad = src_pad;
2371 stream->fps_known = !is_video; /* bit hacky for audio */
2372 stream->is_video = is_video;
2373 stream->pending_tags = tags;
2374 stream->discont = TRUE;
2378 st = gst_caps_get_structure (caps, 0);
2379 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2380 par_x > 0 && par_y > 0) {
2381 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2382 stream->par_x = par_x;
2383 stream->par_y = par_y;
2387 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2389 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2390 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2392 ++demux->num_streams;
2394 stream->active = FALSE;
2400 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2401 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2403 GstTagList *tags = NULL;
2404 GstBuffer *extradata = NULL;
2407 guint16 size_left = 0;
2408 gchar *codec_name = NULL;
2411 size_left = audio->size;
2413 /* Create the audio pad */
2414 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2416 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2419 /* Swallow up any left over data and set up the
2420 * standard properties from the header info */
2422 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2423 "codec specific data", size_left);
2425 g_assert (size_left <= *p_size);
2426 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2429 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2430 * additional two bytes indicating extradata. */
2431 /* FIXME: Handle the channel reorder map here */
2432 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2433 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2436 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2437 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2440 /* Informing about that audio format we just added */
2442 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2443 g_free (codec_name);
2447 gst_buffer_unref (extradata);
2449 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2450 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2451 audio->codec_tag, tags);
2453 ++demux->num_audio_streams;
2455 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, tags);
2459 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2460 asf_stream_video_format * video, guint16 id,
2461 guint8 ** p_data, guint64 * p_size)
2463 GstTagList *tags = NULL;
2464 GstStructure *caps_s;
2465 GstBuffer *extradata = NULL;
2470 gchar *codec_name = NULL;
2471 gint size_left = video->size - 40;
2473 /* Create the video pad */
2474 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2475 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2478 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2480 GST_LOG ("Video header has %d bytes of codec specific data", size_left);
2481 g_assert (size_left <= *p_size);
2482 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2485 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2487 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2488 caps = gst_riff_create_video_caps (video->tag, NULL,
2489 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2492 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2493 G_TYPE_UINT, video->tag, NULL);
2498 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2499 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2500 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2501 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2506 /* retry with the global metadata */
2507 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2508 demux->global_metadata);
2509 s = demux->global_metadata;
2510 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2511 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2512 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2513 if (ax > 0 && ay > 0)
2514 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2518 s = gst_caps_get_structure (caps, 0);
2519 gst_structure_remove_field (s, "framerate");
2522 caps_s = gst_caps_get_structure (caps, 0);
2524 /* add format field with fourcc to WMV/VC1 caps to differentiate variants */
2525 if (gst_structure_has_name (caps_s, "video/x-wmv")) {
2526 str = g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2527 gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
2532 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2533 g_free (codec_name);
2537 gst_buffer_unref (extradata);
2539 GST_INFO ("Adding video stream #%u, id %u, codec %"
2540 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2541 GST_FOURCC_ARGS (video->tag), video->tag);
2543 ++demux->num_video_streams;
2545 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE, tags);
2549 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2551 if (!stream->active) {
2555 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2556 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2557 gst_pad_set_active (stream->pad, TRUE);
2560 gst_pad_create_stream_id_printf (stream->pad, GST_ELEMENT_CAST (demux),
2561 "%03u", stream->id);
2564 gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
2566 if (gst_event_parse_group_id (event, &demux->group_id))
2567 demux->have_group_id = TRUE;
2569 demux->have_group_id = FALSE;
2570 gst_event_unref (event);
2571 } else if (!demux->have_group_id) {
2572 demux->have_group_id = TRUE;
2573 demux->group_id = gst_util_group_id_next ();
2576 event = gst_event_new_stream_start (stream_id);
2577 if (demux->have_group_id)
2578 gst_event_set_group_id (event, demux->group_id);
2580 gst_pad_push_event (stream->pad, event);
2582 gst_pad_set_caps (stream->pad, stream->caps);
2584 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2585 stream->active = TRUE;
2590 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2593 AsfCorrectionType correction_type;
2594 AsfStreamType stream_type;
2595 GstClockTime time_offset;
2596 gboolean is_encrypted G_GNUC_UNUSED;
2600 guint stream_specific_size;
2601 guint type_specific_size G_GNUC_UNUSED;
2602 guint unknown G_GNUC_UNUSED;
2603 gboolean inspect_payload = FALSE;
2604 AsfStream *stream = NULL;
2606 /* Get the rest of the header's header */
2607 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2608 goto not_enough_data;
2610 gst_asf_demux_get_guid (&guid, &data, &size);
2611 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2613 gst_asf_demux_get_guid (&guid, &data, &size);
2614 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2616 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2618 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2619 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2621 flags = gst_asf_demux_get_uint16 (&data, &size);
2622 stream_id = flags & 0x7f;
2623 is_encrypted = ! !((flags & 0x8000) << 15);
2624 unknown = gst_asf_demux_get_uint32 (&data, &size);
2626 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2627 stream_id, GST_TIME_ARGS (time_offset));
2629 /* dvr-ms has audio stream declared in stream specific data */
2630 if (stream_type == ASF_STREAM_EXT_EMBED_HEADER) {
2631 AsfExtStreamType ext_stream_type;
2632 gst_asf_demux_get_guid (&guid, &data, &size);
2633 ext_stream_type = gst_asf_demux_identify_guid (asf_ext_stream_guids, &guid);
2635 if (ext_stream_type == ASF_EXT_STREAM_AUDIO) {
2636 inspect_payload = TRUE;
2638 gst_asf_demux_get_guid (&guid, &data, &size);
2639 gst_asf_demux_get_uint32 (&data, &size);
2640 gst_asf_demux_get_uint32 (&data, &size);
2641 gst_asf_demux_get_uint32 (&data, &size);
2642 gst_asf_demux_get_guid (&guid, &data, &size);
2643 gst_asf_demux_get_uint32 (&data, &size);
2644 stream_type = ASF_STREAM_AUDIO;
2648 switch (stream_type) {
2649 case ASF_STREAM_AUDIO:{
2650 asf_stream_audio audio_object;
2652 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2653 goto not_enough_data;
2655 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2658 stream = gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2661 switch (correction_type) {
2662 case ASF_CORRECTION_ON:{
2663 guint span, packet_size, chunk_size, data_size, silence_data;
2665 GST_INFO ("Using error correction");
2667 if (size < (1 + 2 + 2 + 2 + 1))
2668 goto not_enough_data;
2670 span = gst_asf_demux_get_uint8 (&data, &size);
2671 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2672 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2673 data_size = gst_asf_demux_get_uint16 (&data, &size);
2674 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2676 stream->span = span;
2678 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2679 packet_size, chunk_size, data_size, span, silence_data);
2681 if (stream->span > 1) {
2682 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2683 /* Disable descrambling */
2686 /* FIXME: this else branch was added for
2687 * weird_al_yankovic - the saga begins.asf */
2688 stream->ds_packet_size = packet_size;
2689 stream->ds_chunk_size = chunk_size;
2692 /* Descambling is enabled */
2693 stream->ds_packet_size = packet_size;
2694 stream->ds_chunk_size = chunk_size;
2697 /* Now skip the rest of the silence data */
2699 gst_bytestream_flush (demux->bs, data_size - 1);
2701 /* FIXME: CHECKME. And why -1? */
2702 if (data_size > 1) {
2703 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2704 goto not_enough_data;
2710 case ASF_CORRECTION_OFF:{
2711 GST_INFO ("Error correction off");
2712 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2713 goto not_enough_data;
2717 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2718 ("Audio stream using unknown error correction"));
2725 case ASF_STREAM_VIDEO:{
2726 asf_stream_video_format video_format_object;
2727 asf_stream_video video_object;
2730 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2731 goto not_enough_data;
2733 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2735 GST_INFO ("object is a video stream with %u bytes of "
2736 "additional data", vsize);
2738 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2740 goto not_enough_data;
2743 stream = gst_asf_demux_add_video_stream (demux, &video_format_object,
2744 stream_id, &data, &size);
2750 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2752 demux->other_streams =
2753 g_slist_append (demux->other_streams, GINT_TO_POINTER (stream_id));
2758 stream->inspect_payload = inspect_payload;
2763 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2764 /* we'll error out later if we found no streams */
2769 static const gchar *
2770 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2774 const gchar *asf_name;
2775 const gchar *gst_name;
2778 "WM/Genre", GST_TAG_GENRE}, {
2779 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2780 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2781 "WM/Picture", GST_TAG_IMAGE}, {
2782 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2783 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2784 "WM/Year", GST_TAG_DATE_TIME}
2785 /* { "WM/Composer", GST_TAG_COMPOSER } */
2790 if (name_utf8 == NULL) {
2791 GST_WARNING ("Failed to convert name to UTF8, skipping");
2795 out = strlen (name_utf8);
2797 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2798 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2799 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2800 return tags[i].gst_name;
2807 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2809 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2813 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2815 if (taglist == NULL)
2818 if (gst_tag_list_is_empty (taglist)) {
2819 gst_tag_list_unref (taglist);
2823 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2824 gst_tag_list_set_scope (t, GST_TAG_SCOPE_GLOBAL);
2826 gst_tag_list_unref (demux->taglist);
2827 gst_tag_list_unref (taglist);
2829 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2832 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2833 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2834 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2837 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2841 const guint8 *img_data = NULL;
2842 guint32 img_data_len = 0;
2843 guint8 pic_type = 0;
2845 gst_byte_reader_init (&r, tag_data, tag_data_len);
2847 /* skip mime type string (we don't trust it and do our own typefinding),
2848 * and also skip the description string, since we don't use it */
2849 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
2850 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
2851 !gst_byte_reader_skip_string_utf16 (&r) ||
2852 !gst_byte_reader_skip_string_utf16 (&r) ||
2853 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
2854 goto not_enough_data;
2858 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
2859 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
2865 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
2866 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
2871 /* Extended Content Description Object */
2872 static GstFlowReturn
2873 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
2876 /* Other known (and unused) 'text/unicode' metadata available :
2879 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
2880 * WMFSDKVersion = 9.00.00.2980
2881 * WMFSDKNeeded = 0.0.0.0000
2882 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
2883 * WM/Publisher = 4AD
2885 * WM/ProviderRating = 8
2886 * WM/ProviderStyle = Rock (similar to WM/Genre)
2887 * WM/GenreID (similar to WM/Genre)
2888 * WM/TrackNumber (same as WM/Track but as a string)
2890 * Other known (and unused) 'non-text' metadata available :
2896 * We might want to read WM/TrackNumber and use atoi() if we don't have
2900 GstTagList *taglist;
2901 guint16 blockcount, i;
2903 GST_INFO_OBJECT (demux, "object is an extended content description");
2905 taglist = gst_tag_list_new_empty ();
2907 /* Content Descriptor Count */
2909 goto not_enough_data;
2911 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2913 for (i = 1; i <= blockcount; ++i) {
2914 const gchar *gst_tag_name;
2918 GValue tag_value = { 0, };
2921 gchar *name_utf8 = NULL;
2925 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
2926 goto not_enough_data;
2930 goto not_enough_data;
2932 /* Descriptor Value Data Type */
2933 datatype = gst_asf_demux_get_uint16 (&data, &size);
2935 /* Descriptor Value (not really a string, but same thing reading-wise) */
2936 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
2938 goto not_enough_data;
2942 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
2944 if (name_utf8 != NULL) {
2945 GST_DEBUG ("Found tag/metadata %s", name_utf8);
2947 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
2948 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
2951 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
2954 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
2957 /* get rid of tags with empty value */
2958 if (value_utf8 != NULL && *value_utf8 != '\0') {
2959 GST_DEBUG ("string value %s", value_utf8);
2961 value_utf8[out] = '\0';
2963 if (gst_tag_name != NULL) {
2964 if (strcmp (gst_tag_name, GST_TAG_DATE_TIME) == 0) {
2965 guint year = atoi (value_utf8);
2968 g_value_init (&tag_value, GST_TYPE_DATE_TIME);
2969 g_value_take_boxed (&tag_value, gst_date_time_new_y (year));
2971 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
2972 guint id3v1_genre_id;
2973 const gchar *genre_str;
2975 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
2976 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
2977 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
2978 g_free (value_utf8);
2979 value_utf8 = g_strdup (genre_str);
2984 /* convert tag from string to other type if required */
2985 tag_type = gst_tag_get_type (gst_tag_name);
2986 g_value_init (&tag_value, tag_type);
2987 if (!gst_value_deserialize (&tag_value, value_utf8)) {
2988 GValue from_val = { 0, };
2990 g_value_init (&from_val, G_TYPE_STRING);
2991 g_value_set_string (&from_val, value_utf8);
2992 if (!g_value_transform (&from_val, &tag_value)) {
2993 GST_WARNING_OBJECT (demux,
2994 "Could not transform string tag to " "%s tag type %s",
2995 gst_tag_name, g_type_name (tag_type));
2996 g_value_unset (&tag_value);
2998 g_value_unset (&from_val);
3003 GST_DEBUG ("Setting metadata");
3004 g_value_init (&tag_value, G_TYPE_STRING);
3005 g_value_set_string (&tag_value, value_utf8);
3007 } else if (value_utf8 == NULL) {
3008 GST_WARNING ("Failed to convert string value to UTF8, skipping");
3010 GST_DEBUG ("Skipping empty string value for %s",
3011 GST_STR_NULL (gst_tag_name));
3013 g_free (value_utf8);
3016 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
3018 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
3019 GST_FIXME ("Unhandled byte array tag %s",
3020 GST_STR_NULL (gst_tag_name));
3023 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
3029 case ASF_DEMUX_DATA_TYPE_DWORD:{
3030 guint uint_val = GST_READ_UINT32_LE (value);
3032 /* this is the track number */
3033 g_value_init (&tag_value, G_TYPE_UINT);
3035 /* WM/Track counts from 0 */
3036 if (!strcmp (name_utf8, "WM/Track"))
3039 g_value_set_uint (&tag_value, uint_val);
3043 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
3048 if (G_IS_VALUE (&tag_value)) {
3050 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
3052 /* WM/TrackNumber is more reliable than WM/Track, since the latter
3053 * is supposed to have a 0 base but is often wrongly written to start
3054 * from 1 as well, so prefer WM/TrackNumber when we have it: either
3055 * replace the value added earlier from WM/Track or put it first in
3056 * the list, so that it will get picked up by _get_uint() */
3057 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
3058 merge_mode = GST_TAG_MERGE_REPLACE;
3060 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
3063 GST_DEBUG ("Setting global metadata %s", name_utf8);
3064 gst_structure_set_value (demux->global_metadata, name_utf8,
3068 g_value_unset (&tag_value);
3077 gst_asf_demux_add_global_tags (demux, taglist);
3084 GST_WARNING ("Unexpected end of data parsing ext content desc object");
3085 gst_tag_list_unref (taglist);
3086 return GST_FLOW_OK; /* not really fatal */
3090 static GstStructure *
3091 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
3096 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
3098 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
3101 s = gst_caps_get_structure (demux->metadata, i);
3102 if (gst_structure_has_name (s, sname))
3106 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
3108 /* try lookup again; demux->metadata took ownership of the structure, so we
3109 * can't really make any assumptions about what happened to it, so we can't
3110 * just return it directly after appending it */
3111 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3114 static GstFlowReturn
3115 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
3118 guint16 blockcount, i;
3120 GST_INFO_OBJECT (demux, "object is a metadata object");
3122 /* Content Descriptor Count */
3124 goto not_enough_data;
3126 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3128 for (i = 0; i < blockcount; ++i) {
3130 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
3131 guint32 data_len, ival;
3134 if (size < (2 + 2 + 2 + 2 + 4))
3135 goto not_enough_data;
3137 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3138 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3139 name_len = gst_asf_demux_get_uint16 (&data, &size);
3140 data_type = gst_asf_demux_get_uint16 (&data, &size);
3141 data_len = gst_asf_demux_get_uint32 (&data, &size);
3143 if (size < name_len + data_len)
3144 goto not_enough_data;
3146 /* convert name to UTF-8 */
3147 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
3149 gst_asf_demux_skip_bytes (name_len, &data, &size);
3151 if (name_utf8 == NULL) {
3152 GST_WARNING ("Failed to convert value name to UTF8, skipping");
3153 gst_asf_demux_skip_bytes (data_len, &data, &size);
3157 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
3158 gst_asf_demux_skip_bytes (data_len, &data, &size);
3166 goto not_enough_data;
3169 ival = gst_asf_demux_get_uint32 (&data, &size);
3171 /* skip anything else there may be, just in case */
3172 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
3174 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3175 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
3179 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
3185 GST_WARNING ("Unexpected end of data parsing metadata object");
3186 return GST_FLOW_OK; /* not really fatal */
3190 static GstFlowReturn
3191 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
3193 GstFlowReturn ret = GST_FLOW_OK;
3194 guint32 i, num_objects;
3195 guint8 unknown G_GNUC_UNUSED;
3197 /* Get the rest of the header's header */
3198 if (size < (4 + 1 + 1))
3199 goto not_enough_data;
3201 num_objects = gst_asf_demux_get_uint32 (&data, &size);
3202 unknown = gst_asf_demux_get_uint8 (&data, &size);
3203 unknown = gst_asf_demux_get_uint8 (&data, &size);
3205 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
3207 /* Loop through the header's objects, processing those */
3208 for (i = 0; i < num_objects; ++i) {
3209 GST_INFO_OBJECT (demux, "reading header part %u", i);
3210 ret = gst_asf_demux_process_object (demux, &data, &size);
3211 if (ret != GST_FLOW_OK) {
3212 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
3221 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3222 ("short read parsing HEADER object"));
3223 return GST_FLOW_ERROR;
3227 static GstFlowReturn
3228 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
3230 guint64 creation_time G_GNUC_UNUSED;
3231 guint64 file_size G_GNUC_UNUSED;
3232 guint64 send_time G_GNUC_UNUSED;
3233 guint64 packets_count, play_time, preroll;
3234 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
3236 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
3237 goto not_enough_data;
3239 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
3240 file_size = gst_asf_demux_get_uint64 (&data, &size);
3241 creation_time = gst_asf_demux_get_uint64 (&data, &size);
3242 packets_count = gst_asf_demux_get_uint64 (&data, &size);
3243 play_time = gst_asf_demux_get_uint64 (&data, &size);
3244 send_time = gst_asf_demux_get_uint64 (&data, &size);
3245 preroll = gst_asf_demux_get_uint64 (&data, &size);
3246 flags = gst_asf_demux_get_uint32 (&data, &size);
3247 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3248 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3249 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3251 demux->broadcast = ! !(flags & 0x01);
3252 demux->seekable = ! !(flags & 0x02);
3254 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3255 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3256 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3258 if (demux->broadcast) {
3259 /* these fields are invalid if the broadcast flag is set */
3264 if (min_pktsize != max_pktsize)
3265 goto non_fixed_packet_size;
3267 demux->packet_size = max_pktsize;
3269 /* FIXME: do we need send_time as well? what is it? */
3270 if ((play_time * 100) >= (preroll * GST_MSECOND))
3271 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3273 demux->play_time = 0;
3275 demux->preroll = preroll * GST_MSECOND;
3277 /* initial latency */
3278 demux->latency = demux->preroll;
3280 if (demux->play_time == 0)
3281 demux->seekable = FALSE;
3283 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3284 GST_TIME_ARGS (demux->play_time));
3285 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3286 GST_TIME_ARGS (demux->preroll));
3288 if (demux->play_time > 0) {
3289 demux->segment.duration = demux->play_time;
3292 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3294 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3299 non_fixed_packet_size:
3301 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3302 ("packet size must be fixed"));
3303 return GST_FLOW_ERROR;
3307 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3308 ("short read parsing FILE object"));
3309 return GST_FLOW_ERROR;
3313 /* Content Description Object */
3314 static GstFlowReturn
3315 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3319 const gchar *gst_tag;
3324 GST_TAG_TITLE, 0, NULL}, {
3325 GST_TAG_ARTIST, 0, NULL}, {
3326 GST_TAG_COPYRIGHT, 0, NULL}, {
3327 GST_TAG_DESCRIPTION, 0, NULL}, {
3328 GST_TAG_COMMENT, 0, NULL}
3330 GstTagList *taglist;
3331 GValue value = { 0 };
3335 GST_INFO_OBJECT (demux, "object is a comment");
3337 if (size < (2 + 2 + 2 + 2 + 2))
3338 goto not_enough_data;
3340 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3341 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3342 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3343 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3344 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3346 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3347 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3348 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3350 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3351 if (size < tags[i].val_length)
3352 goto not_enough_data;
3354 /* might be just '/0', '/0'... */
3355 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3356 /* convert to UTF-8 */
3357 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3358 "UTF-8", "UTF-16LE", &in, &out, NULL);
3360 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3363 /* parse metadata into taglist */
3364 taglist = gst_tag_list_new_empty ();
3365 g_value_init (&value, G_TYPE_STRING);
3366 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3367 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3368 g_value_set_string (&value, tags[i].val_utf8);
3369 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3370 tags[i].gst_tag, &value, NULL);
3373 g_value_unset (&value);
3375 gst_asf_demux_add_global_tags (demux, taglist);
3377 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3378 g_free (tags[i].val_utf8);
3384 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3385 "comment tag section %d, skipping comment object", i);
3386 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3387 g_free (tags[i].val_utf8);
3388 return GST_FLOW_OK; /* not really fatal */
3392 static GstFlowReturn
3393 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3396 guint16 num_streams, i;
3400 goto not_enough_data;
3402 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3404 GST_INFO ("object is a bitrate properties object with %u streams",
3407 if (size < (num_streams * (2 + 4)))
3408 goto not_enough_data;
3410 for (i = 0; i < num_streams; ++i) {
3414 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3415 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3417 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3418 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3419 stream = gst_asf_demux_get_stream (demux, stream_id);
3421 if (stream->pending_tags == NULL) {
3422 stream->pending_tags =
3423 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3426 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3429 GST_WARNING ("stream id %u is too large", stream_id);
3437 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3438 return GST_FLOW_OK; /* not really fatal */
3442 static GstFlowReturn
3443 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3446 GstFlowReturn ret = GST_FLOW_OK;
3449 /* Get the rest of the header's header */
3450 if (size < (16 + 2 + 4))
3451 goto not_enough_data;
3453 /* skip GUID and two other bytes */
3454 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3455 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3457 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3459 /* FIXME: does data_size include the rest of the header that we have read? */
3460 if (hdr_size > size)
3461 goto not_enough_data;
3463 while (hdr_size > 0) {
3464 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3465 if (ret != GST_FLOW_OK)
3473 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3474 ("short read parsing extended header object"));
3475 return GST_FLOW_ERROR;
3479 static GstFlowReturn
3480 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3486 goto not_enough_data;
3488 if (demux->languages) {
3489 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3490 g_strfreev (demux->languages);
3491 demux->languages = NULL;
3492 demux->num_languages = 0;
3495 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3496 GST_LOG ("%u languages:", demux->num_languages);
3498 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3499 for (i = 0; i < demux->num_languages; ++i) {
3500 guint8 len, *lang_data = NULL;
3503 goto not_enough_data;
3504 len = gst_asf_demux_get_uint8 (&data, &size);
3505 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3508 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3511 /* truncate "en-us" etc. to just "en" */
3512 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3515 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3516 demux->languages[i] = utf8;
3519 goto not_enough_data;
3527 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3528 g_free (demux->languages);
3529 demux->languages = NULL;
3530 return GST_FLOW_OK; /* not fatal */
3534 static GstFlowReturn
3535 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3538 GstClockTime interval;
3541 if (size < (16 + 8 + 4 + 4))
3542 goto not_enough_data;
3545 gst_asf_demux_skip_bytes (16, &data, &size);
3546 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3547 gst_asf_demux_skip_bytes (4, &data, &size);
3548 count = gst_asf_demux_get_uint32 (&data, &size);
3550 demux->sidx_interval = interval;
3551 demux->sidx_num_entries = count;
3552 g_free (demux->sidx_entries);
3553 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3555 for (i = 0; i < count; ++i) {
3556 if (G_UNLIKELY (size < 6)) {
3557 /* adjust for broken files, to avoid having entries at the end
3558 * of the parsed index that point to time=0. Resulting in seeking to
3559 * the end of the file leading back to the beginning */
3560 demux->sidx_num_entries -= (count - i);
3563 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3564 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3565 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3566 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3567 demux->sidx_entries[i].count);
3570 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3577 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3578 return GST_FLOW_OK; /* not fatal */
3582 static GstFlowReturn
3583 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3584 guint8 * data, guint64 size)
3590 if (size < 16 + 2 + (2 * 2))
3591 goto not_enough_data;
3593 gst_asf_demux_get_guid (&guid, &data, &size);
3594 num = gst_asf_demux_get_uint16 (&data, &size);
3597 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3601 if (size < (num * sizeof (guint16)))
3602 goto not_enough_data;
3604 /* read mutually exclusive stream numbers */
3605 mes = g_new (guint8, num + 1);
3606 for (i = 0; i < num; ++i) {
3607 mes[i] = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3608 GST_LOG_OBJECT (demux, "mutually exclusive: stream #%d", mes[i]);
3611 /* add terminator so we can easily get the count or know when to stop */
3612 mes[i] = (guint8) - 1;
3614 demux->mut_ex_streams = g_slist_append (demux->mut_ex_streams, mes);
3621 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3622 return GST_FLOW_OK; /* not absolutely fatal */
3627 gst_asf_demux_is_unknown_stream (GstASFDemux * demux, guint stream_num)
3629 return g_slist_find (demux->other_streams,
3630 GINT_TO_POINTER (stream_num)) == NULL;
3633 static GstFlowReturn
3634 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3637 AsfStreamExtProps esp;
3638 AsfStream *stream = NULL;
3639 AsfObject stream_obj;
3640 guint16 stream_name_count;
3641 guint16 num_payload_ext;
3643 guint8 *stream_obj_data = NULL;
3646 guint i, stream_num;
3649 obj_size = (guint) size;
3652 goto not_enough_data;
3655 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3656 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3657 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3658 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3659 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3660 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3661 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3662 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3663 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3664 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3665 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3666 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3667 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3668 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3669 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3671 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3672 GST_TIME_ARGS (esp.start_time));
3673 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3674 GST_TIME_ARGS (esp.end_time));
3675 GST_INFO ("flags = %08x", esp.flags);
3676 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3677 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3678 GST_INFO ("stream number = %u", stream_num);
3679 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3680 (esp.lang_idx < demux->num_languages) ?
3681 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3682 GST_INFO ("stream name count = %u", stream_name_count);
3684 /* read stream names */
3685 for (i = 0; i < stream_name_count; ++i) {
3686 guint16 stream_lang_idx G_GNUC_UNUSED;
3687 gchar *stream_name = NULL;
3690 goto not_enough_data;
3691 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3692 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3693 goto not_enough_data;
3694 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3695 g_free (stream_name); /* TODO: store names in struct */
3698 /* read payload extension systems stuff */
3699 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3701 if (num_payload_ext > 0)
3702 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3704 esp.payload_extensions = NULL;
3706 for (i = 0; i < num_payload_ext; ++i) {
3707 AsfPayloadExtension ext;
3709 guint32 sys_info_len;
3711 if (size < 16 + 2 + 4)
3712 goto not_enough_data;
3714 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3715 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3716 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3718 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3719 GST_LOG ("payload systems info len = %u", sys_info_len);
3720 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3721 goto not_enough_data;
3723 esp.payload_extensions[i] = ext;
3726 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3728 /* there might be an optional STREAM_INFO object here now; if not, we
3729 * should have parsed the corresponding stream info object already (since
3730 * we are parsing the extended stream properties objects delayed) */
3732 stream = gst_asf_demux_get_stream (demux, stream_num);
3736 /* get size of the stream object */
3737 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3738 goto not_enough_data;
3740 if (stream_obj.id != ASF_OBJ_STREAM)
3741 goto expected_stream_object;
3743 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3744 stream_obj.size > (10 * 1024 * 1024))
3745 goto not_enough_data;
3747 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3749 /* process this stream object later after all the other 'normal' ones
3750 * have been processed (since the others are more important/non-hidden) */
3751 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3752 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3753 goto not_enough_data;
3755 /* parse stream object */
3756 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3757 g_free (stream_obj_data);
3762 stream->ext_props = esp;
3764 /* try to set the framerate */
3765 if (stream->is_video && stream->caps) {
3766 GValue framerate = { 0 };
3770 g_value_init (&framerate, GST_TYPE_FRACTION);
3772 num = GST_SECOND / 100;
3773 denom = esp.avg_time_per_frame;
3775 /* avoid division by 0, assume 25/1 framerate */
3776 denom = GST_SECOND / 2500;
3779 gst_value_set_fraction (&framerate, num, denom);
3781 stream->caps = gst_caps_make_writable (stream->caps);
3782 s = gst_caps_get_structure (stream->caps, 0);
3783 gst_structure_set_value (s, "framerate", &framerate);
3784 g_value_unset (&framerate);
3785 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3786 num, denom, ((gdouble) num) / denom);
3789 /* add language info now if we have it */
3790 if (stream->ext_props.lang_idx < demux->num_languages) {
3791 if (stream->pending_tags == NULL)
3792 stream->pending_tags = gst_tag_list_new_empty ();
3793 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3794 demux->languages[stream->ext_props.lang_idx]);
3795 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3796 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
3799 } else if (gst_asf_demux_is_unknown_stream (demux, stream_num)) {
3800 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
3808 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
3809 return GST_FLOW_OK; /* not absolutely fatal */
3811 expected_stream_object:
3813 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
3814 "object: expected embedded stream object, but got %s object instead!",
3815 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
3816 return GST_FLOW_OK; /* not absolutely fatal */
3820 static const gchar *
3821 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
3825 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
3826 if (g_str_has_prefix (nick, "ASF_OBJ_"))
3827 nick += strlen ("ASF_OBJ_");
3829 if (demux->objpath == NULL) {
3830 demux->objpath = g_strdup (nick);
3834 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
3835 g_free (demux->objpath);
3836 demux->objpath = newpath;
3839 return (const gchar *) demux->objpath;
3843 gst_asf_demux_pop_obj (GstASFDemux * demux)
3847 if ((s = g_strrstr (demux->objpath, "/"))) {
3850 g_free (demux->objpath);
3851 demux->objpath = NULL;
3856 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
3861 /* Parse the queued extended stream property objects and add the info
3862 * to the existing streams or add the new embedded streams, but without
3863 * activating them yet */
3864 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
3865 g_slist_length (demux->ext_stream_props));
3867 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
3868 GstBuffer *buf = GST_BUFFER (l->data);
3871 gst_buffer_map (buf, &map, GST_MAP_READ);
3873 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
3874 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
3875 gst_buffer_unmap (buf, &map);
3876 gst_buffer_unref (buf);
3878 g_slist_free (demux->ext_stream_props);
3879 demux->ext_stream_props = NULL;
3884 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
3888 for (i = 0; i < demux->num_streams; ++i) {
3893 stream = &demux->stream[i];
3895 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
3897 if (stream->active) {
3898 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
3903 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
3906 /* check for each mutual exclusion whether it affects this stream */
3907 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3908 if (*mes == stream->id) {
3909 /* if yes, check if we've already added streams that are mutually
3910 * exclusive with the stream we're about to add */
3911 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3912 for (j = 0; j < demux->num_streams; ++j) {
3913 /* if the broadcast flag is set, assume the hidden streams aren't
3914 * actually streamed and hide them (or playbin won't work right),
3915 * otherwise assume their data is available */
3916 if (demux->stream[j].id == *mes && demux->broadcast) {
3918 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
3919 "mutually exclusive with already existing stream ID %d, "
3920 "hiding stream", stream->id, demux->stream[j].id);
3932 /* FIXME: we should do stream activation based on preroll data in
3933 * streaming mode too */
3934 if (demux->streaming && !is_hidden)
3935 gst_asf_demux_activate_stream (demux, stream);
3940 static GstFlowReturn
3941 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
3944 GstFlowReturn ret = GST_FLOW_OK;
3946 guint64 obj_data_size;
3948 if (*p_size < ASF_OBJECT_HEADER_SIZE)
3949 return ASF_FLOW_NEED_MORE_DATA;
3951 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
3952 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
3954 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
3956 if (*p_size < obj_data_size)
3957 return ASF_FLOW_NEED_MORE_DATA;
3959 gst_asf_demux_push_obj (demux, obj.id);
3961 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
3964 case ASF_OBJ_STREAM:
3965 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
3969 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
3971 case ASF_OBJ_HEADER:
3972 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
3974 case ASF_OBJ_COMMENT:
3975 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
3978 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
3980 case ASF_OBJ_BITRATE_PROPS:
3982 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
3985 case ASF_OBJ_EXT_CONTENT_DESC:
3987 gst_asf_demux_process_ext_content_desc (demux, *p_data,
3990 case ASF_OBJ_METADATA_OBJECT:
3991 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
3993 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
3996 /* process these later, we might not have parsed the corresponding
3997 * stream object yet */
3998 GST_LOG ("%s: queued for later parsing", demux->objpath);
3999 buf = gst_buffer_new_and_alloc (obj_data_size);
4000 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
4001 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
4005 case ASF_OBJ_LANGUAGE_LIST:
4006 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
4008 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
4009 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
4012 case ASF_OBJ_SIMPLE_INDEX:
4013 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
4015 case ASF_OBJ_CONTENT_ENCRYPTION:
4016 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
4017 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
4018 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
4019 goto error_encrypted;
4020 case ASF_OBJ_CONCEAL_NONE:
4022 case ASF_OBJ_UNDEFINED:
4023 case ASF_OBJ_CODEC_COMMENT:
4025 case ASF_OBJ_PADDING:
4026 case ASF_OBJ_BITRATE_MUTEX:
4027 case ASF_OBJ_COMPATIBILITY:
4028 case ASF_OBJ_INDEX_PLACEHOLDER:
4029 case ASF_OBJ_INDEX_PARAMETERS:
4030 case ASF_OBJ_STREAM_PRIORITIZATION:
4031 case ASF_OBJ_SCRIPT_COMMAND:
4033 /* Unknown/unhandled object, skip it and hope for the best */
4034 GST_INFO ("%s: skipping object", demux->objpath);
4039 /* this can't fail, we checked the number of bytes available before */
4040 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
4042 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
4044 gst_asf_demux_pop_obj (demux);
4051 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
4052 return GST_FLOW_ERROR;
4057 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
4058 GstBuffer ** p_buffer)
4060 GstBuffer *descrambled_buffer;
4061 GstBuffer *scrambled_buffer;
4062 GstBuffer *sub_buffer;
4069 /* descrambled_buffer is initialised in the first iteration */
4070 descrambled_buffer = NULL;
4071 scrambled_buffer = *p_buffer;
4073 if (gst_buffer_get_size (scrambled_buffer) <
4074 stream->ds_packet_size * stream->span)
4077 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
4078 offset += stream->ds_chunk_size) {
4079 off = offset / stream->ds_chunk_size;
4080 row = off / stream->span;
4081 col = off % stream->span;
4082 idx = row + col * stream->ds_packet_size / stream->ds_chunk_size;
4083 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
4084 col, off, stream->ds_chunk_size);
4085 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
4086 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
4087 stream->span, stream->ds_packet_size);
4088 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
4089 gst_buffer_get_size (scrambled_buffer));
4091 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_MEMORY,
4092 idx * stream->ds_chunk_size, stream->ds_chunk_size);
4094 descrambled_buffer = sub_buffer;
4096 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
4100 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
4101 GST_BUFFER_TIMESTAMP (scrambled_buffer);
4102 GST_BUFFER_DURATION (descrambled_buffer) =
4103 GST_BUFFER_DURATION (scrambled_buffer);
4104 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
4105 GST_BUFFER_OFFSET_END (descrambled_buffer) =
4106 GST_BUFFER_OFFSET_END (scrambled_buffer);
4108 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
4110 gst_buffer_unref (scrambled_buffer);
4111 *p_buffer = descrambled_buffer;
4115 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
4117 GstASFDemux *demux = GST_ASF_DEMUX (element);
4120 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
4122 for (i = 0; i < demux->num_streams; ++i) {
4123 gst_event_ref (event);
4124 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
4125 GST_OBJECT_CAST (element), event)) {
4126 gst_event_unref (event);
4131 gst_event_unref (event);
4135 /* takes ownership of the passed event */
4137 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
4139 gboolean ret = TRUE;
4142 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
4143 GST_EVENT_TYPE_NAME (event));
4145 for (i = 0; i < demux->num_streams; ++i) {
4146 gst_event_ref (event);
4147 ret &= gst_pad_push_event (demux->stream[i].pad, event);
4149 gst_event_unref (event);
4154 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
4158 gboolean res = FALSE;
4160 demux = GST_ASF_DEMUX (parent);
4162 GST_DEBUG ("handling %s query",
4163 gst_query_type_get_name (GST_QUERY_TYPE (query)));
4165 switch (GST_QUERY_TYPE (query)) {
4166 case GST_QUERY_DURATION:
4170 gst_query_parse_duration (query, &format, NULL);
4172 if (format != GST_FORMAT_TIME) {
4173 GST_LOG ("only support duration queries in TIME format");
4177 GST_OBJECT_LOCK (demux);
4179 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
4180 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
4181 GST_TIME_ARGS (demux->segment.duration));
4183 gst_query_set_duration (query, GST_FORMAT_TIME,
4184 demux->segment.duration);
4188 GST_LOG ("duration not known yet");
4191 GST_OBJECT_UNLOCK (demux);
4195 case GST_QUERY_POSITION:{
4198 gst_query_parse_position (query, &format, NULL);
4200 if (format != GST_FORMAT_TIME) {
4201 GST_LOG ("only support position queries in TIME format");
4205 GST_OBJECT_LOCK (demux);
4207 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
4208 GST_LOG ("returning position: %" GST_TIME_FORMAT,
4209 GST_TIME_ARGS (demux->segment.position));
4211 gst_query_set_position (query, GST_FORMAT_TIME,
4212 demux->segment.position);
4216 GST_LOG ("position not known yet");
4219 GST_OBJECT_UNLOCK (demux);
4223 case GST_QUERY_SEEKING:{
4226 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
4227 if (format == GST_FORMAT_TIME) {
4230 GST_OBJECT_LOCK (demux);
4231 duration = demux->segment.duration;
4232 GST_OBJECT_UNLOCK (demux);
4234 if (!demux->streaming || !demux->seekable) {
4235 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
4242 /* try downstream first in TIME */
4243 res = gst_pad_query_default (pad, parent, query);
4245 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
4246 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4247 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4248 /* if no luck, maybe in BYTES */
4249 if (!seekable || fmt != GST_FORMAT_TIME) {
4252 q = gst_query_new_seeking (GST_FORMAT_BYTES);
4253 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
4254 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
4255 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4256 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4257 if (fmt != GST_FORMAT_BYTES)
4260 gst_query_unref (q);
4261 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4267 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4271 case GST_QUERY_LATENCY:
4274 GstClockTime min, max;
4276 /* preroll delay does not matter in non-live pipeline,
4277 * but we might end up in a live (rtsp) one ... */
4280 res = gst_pad_query_default (pad, parent, query);
4284 gst_query_parse_latency (query, &live, &min, &max);
4286 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4287 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4288 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4290 GST_OBJECT_LOCK (demux);
4292 min += demux->latency;
4294 max += demux->latency;
4295 GST_OBJECT_UNLOCK (demux);
4297 gst_query_set_latency (query, live, min, max);
4300 case GST_QUERY_SEGMENT:
4305 format = demux->segment.format;
4308 gst_segment_to_stream_time (&demux->segment, format,
4309 demux->segment.start);
4310 if ((stop = demux->segment.stop) == -1)
4311 stop = demux->segment.duration;
4313 stop = gst_segment_to_stream_time (&demux->segment, format, stop);
4315 gst_query_set_segment (query, demux->segment.rate, format, start, stop);
4320 res = gst_pad_query_default (pad, parent, query);
4327 static GstStateChangeReturn
4328 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4330 GstASFDemux *demux = GST_ASF_DEMUX (element);
4331 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4333 switch (transition) {
4334 case GST_STATE_CHANGE_NULL_TO_READY:{
4335 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4336 demux->need_newsegment = TRUE;
4337 demux->segment_running = FALSE;
4338 demux->accurate = FALSE;
4339 demux->adapter = gst_adapter_new ();
4340 demux->metadata = gst_caps_new_empty ();
4341 demux->global_metadata = gst_structure_new_empty ("metadata");
4342 demux->data_size = 0;
4343 demux->data_offset = 0;
4344 demux->index_offset = 0;
4345 demux->base_offset = 0;
4352 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4353 if (ret == GST_STATE_CHANGE_FAILURE)
4356 switch (transition) {
4357 case GST_STATE_CHANGE_PAUSED_TO_READY:
4358 case GST_STATE_CHANGE_READY_TO_NULL:
4359 gst_asf_demux_reset (demux, FALSE);