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., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, 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/riff/riff-media.h>
38 #include <gst/tag/tag.h>
39 #include <gst/gst-i18n-plugin.h>
44 #include "gstasfdemux.h"
45 #include "asfheaders.h"
46 #include "asfpacket.h"
48 static GstStaticPadTemplate gst_asf_demux_sink_template =
49 GST_STATIC_PAD_TEMPLATE ("sink",
52 GST_STATIC_CAPS ("video/x-ms-asf")
55 static GstStaticPadTemplate audio_src_template =
56 GST_STATIC_PAD_TEMPLATE ("audio_%u",
61 static GstStaticPadTemplate video_src_template =
62 GST_STATIC_PAD_TEMPLATE ("video_%u",
67 /* size of an ASF object header, ie. GUID (16 bytes) + object size (8 bytes) */
68 #define ASF_OBJECT_HEADER_SIZE (16+8)
70 /* FIXME: get rid of this */
71 /* abuse this GstFlowReturn enum for internal usage */
72 #define ASF_FLOW_NEED_MORE_DATA 99
74 #define gst_asf_get_flow_name(flow) \
75 (flow == ASF_FLOW_NEED_MORE_DATA) ? \
76 "need-more-data" : gst_flow_get_name (flow)
78 GST_DEBUG_CATEGORY (asfdemux_dbg);
80 static GstStateChangeReturn gst_asf_demux_change_state (GstElement * element,
81 GstStateChange transition);
82 static gboolean gst_asf_demux_element_send_event (GstElement * element,
84 static gboolean gst_asf_demux_send_event_unlocked (GstASFDemux * demux,
86 static gboolean gst_asf_demux_handle_src_query (GstPad * pad,
87 GstObject * parent, GstQuery * query);
88 static GstFlowReturn gst_asf_demux_chain (GstPad * pad, GstObject * parent,
90 static gboolean gst_asf_demux_sink_event (GstPad * pad, GstObject * parent,
92 static GstFlowReturn gst_asf_demux_process_object (GstASFDemux * demux,
93 guint8 ** p_data, guint64 * p_size);
94 static gboolean gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent);
95 static gboolean gst_asf_demux_activate_mode (GstPad * sinkpad,
96 GstObject * parent, GstPadMode mode, gboolean active);
97 static void gst_asf_demux_loop (GstASFDemux * demux);
99 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux);
100 static gboolean gst_asf_demux_pull_headers (GstASFDemux * demux);
101 static void gst_asf_demux_pull_indices (GstASFDemux * demux);
102 static void gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * asf);
104 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data);
105 static void gst_asf_demux_descramble_buffer (GstASFDemux * demux,
106 AsfStream * stream, GstBuffer ** p_buffer);
107 static void gst_asf_demux_activate_stream (GstASFDemux * demux,
109 static GstStructure *gst_asf_demux_get_metadata_for_stream (GstASFDemux * d,
111 static GstFlowReturn gst_asf_demux_push_complete_payloads (GstASFDemux * demux,
114 #define gst_asf_demux_parent_class parent_class
115 G_DEFINE_TYPE (GstASFDemux, gst_asf_demux, GST_TYPE_ELEMENT);
118 gst_asf_demux_class_init (GstASFDemuxClass * klass)
120 GstElementClass *gstelement_class;
122 gstelement_class = (GstElementClass *) klass;
124 gst_element_class_set_static_metadata (gstelement_class, "ASF Demuxer",
126 "Demultiplexes ASF Streams", "Owen Fraser-Green <owen@discobabe.net>");
128 gst_element_class_add_pad_template (gstelement_class,
129 gst_static_pad_template_get (&audio_src_template));
130 gst_element_class_add_pad_template (gstelement_class,
131 gst_static_pad_template_get (&video_src_template));
132 gst_element_class_add_pad_template (gstelement_class,
133 gst_static_pad_template_get (&gst_asf_demux_sink_template));
135 gstelement_class->change_state =
136 GST_DEBUG_FUNCPTR (gst_asf_demux_change_state);
137 gstelement_class->send_event =
138 GST_DEBUG_FUNCPTR (gst_asf_demux_element_send_event);
142 gst_asf_demux_free_stream (GstASFDemux * demux, AsfStream * stream)
144 gst_caps_replace (&stream->caps, NULL);
145 if (stream->pending_tags) {
146 gst_tag_list_free (stream->pending_tags);
147 stream->pending_tags = NULL;
151 gst_element_remove_pad (GST_ELEMENT_CAST (demux), stream->pad);
153 gst_object_unref (stream->pad);
157 while (stream->payloads->len > 0) {
161 last = stream->payloads->len - 1;
162 payload = &g_array_index (stream->payloads, AsfPayload, last);
163 gst_buffer_replace (&payload->buf, NULL);
164 g_array_remove_index (stream->payloads, last);
166 if (stream->payloads) {
167 g_array_free (stream->payloads, TRUE);
168 stream->payloads = NULL;
170 if (stream->ext_props.valid) {
171 g_free (stream->ext_props.payload_extensions);
172 stream->ext_props.payload_extensions = NULL;
177 gst_asf_demux_reset (GstASFDemux * demux, gboolean chain_reset)
179 GST_LOG_OBJECT (demux, "resetting");
181 gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
182 demux->segment_running = FALSE;
183 if (demux->adapter && !chain_reset) {
184 gst_adapter_clear (demux->adapter);
185 g_object_unref (demux->adapter);
186 demux->adapter = NULL;
188 if (demux->taglist) {
189 gst_tag_list_free (demux->taglist);
190 demux->taglist = NULL;
192 if (demux->metadata) {
193 gst_caps_unref (demux->metadata);
194 demux->metadata = NULL;
196 if (demux->global_metadata) {
197 gst_structure_free (demux->global_metadata);
198 demux->global_metadata = NULL;
201 demux->state = GST_ASF_DEMUX_STATE_HEADER;
202 g_free (demux->objpath);
203 demux->objpath = NULL;
204 g_strfreev (demux->languages);
205 demux->languages = NULL;
206 demux->num_languages = 0;
207 g_slist_foreach (demux->ext_stream_props, (GFunc) gst_mini_object_unref,
209 g_slist_free (demux->ext_stream_props);
210 demux->ext_stream_props = NULL;
212 while (demux->old_num_streams > 0) {
213 gst_asf_demux_free_stream (demux,
214 &demux->old_stream[demux->old_num_streams - 1]);
215 --demux->old_num_streams;
217 memset (demux->old_stream, 0, sizeof (demux->old_stream));
218 demux->old_num_streams = 0;
220 /* when resetting for a new chained asf, we don't want to remove the pads
221 * before adding the new ones */
223 memcpy (demux->old_stream, demux->stream, sizeof (demux->stream));
224 demux->old_num_streams = demux->num_streams;
225 demux->num_streams = 0;
228 while (demux->num_streams > 0) {
229 gst_asf_demux_free_stream (demux, &demux->stream[demux->num_streams - 1]);
230 --demux->num_streams;
232 memset (demux->stream, 0, sizeof (demux->stream));
234 /* do not remove those for not adding pads with same name */
235 demux->num_audio_streams = 0;
236 demux->num_video_streams = 0;
238 demux->num_streams = 0;
239 demux->activated_streams = FALSE;
240 demux->first_ts = GST_CLOCK_TIME_NONE;
241 demux->segment_ts = GST_CLOCK_TIME_NONE;
244 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
245 demux->state = GST_ASF_DEMUX_STATE_HEADER;
246 demux->seekable = FALSE;
247 demux->broadcast = FALSE;
248 demux->sidx_interval = 0;
249 demux->sidx_num_entries = 0;
250 g_free (demux->sidx_entries);
251 demux->sidx_entries = NULL;
253 demux->speed_packets = 1;
256 GST_LOG_OBJECT (demux, "Restarting");
257 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
258 demux->need_newsegment = TRUE;
259 demux->segment_running = FALSE;
260 demux->accurate = FALSE;
261 demux->metadata = gst_caps_new_empty ();
262 demux->global_metadata = gst_structure_new_empty ("metadata");
263 demux->data_size = 0;
264 demux->data_offset = 0;
265 demux->index_offset = 0;
267 demux->base_offset = 0;
272 gst_asf_demux_init (GstASFDemux * demux)
275 gst_pad_new_from_static_template (&gst_asf_demux_sink_template, "sink");
276 gst_pad_set_chain_function (demux->sinkpad,
277 GST_DEBUG_FUNCPTR (gst_asf_demux_chain));
278 gst_pad_set_event_function (demux->sinkpad,
279 GST_DEBUG_FUNCPTR (gst_asf_demux_sink_event));
280 gst_pad_set_activate_function (demux->sinkpad,
281 GST_DEBUG_FUNCPTR (gst_asf_demux_activate));
282 gst_pad_set_activatemode_function (demux->sinkpad,
283 GST_DEBUG_FUNCPTR (gst_asf_demux_activate_mode));
284 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
286 /* set initial state */
287 gst_asf_demux_reset (demux, FALSE);
291 gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent)
296 query = gst_query_new_scheduling ();
298 if (!gst_pad_peer_query (sinkpad, query)) {
299 gst_query_unref (query);
303 pull_mode = gst_query_has_scheduling_mode (query, GST_PAD_MODE_PULL);
304 gst_query_unref (query);
309 GST_DEBUG_OBJECT (sinkpad, "activating pull");
310 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
314 GST_DEBUG_OBJECT (sinkpad, "activating push");
315 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
320 gst_asf_demux_activate_mode (GstPad * sinkpad, GstObject * parent,
321 GstPadMode mode, gboolean active)
326 demux = GST_ASF_DEMUX (parent);
329 case GST_PAD_MODE_PUSH:
330 demux->state = GST_ASF_DEMUX_STATE_HEADER;
331 demux->streaming = TRUE;
334 case GST_PAD_MODE_PULL:
336 demux->state = GST_ASF_DEMUX_STATE_HEADER;
337 demux->streaming = FALSE;
339 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_asf_demux_loop,
342 res = gst_pad_stop_task (sinkpad);
353 gst_asf_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
358 demux = GST_ASF_DEMUX (parent);
360 GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
361 switch (GST_EVENT_TYPE (event)) {
362 case GST_EVENT_SEGMENT:{
363 const GstSegment *segment;
365 gst_event_parse_segment (event, &segment);
367 if (segment->format == GST_FORMAT_BYTES) {
368 if (demux->packet_size && segment->start > demux->data_offset)
369 demux->packet = (segment->start - demux->data_offset) /
373 } else if (segment->format == GST_FORMAT_TIME) {
374 /* do not know packet position, not really a problem */
377 GST_WARNING_OBJECT (demux, "unsupported newsegment format, ignoring");
378 gst_event_unref (event);
382 /* record upstream segment for interpolation */
383 if (segment->format != demux->in_segment.format)
384 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
385 gst_segment_copy_into (segment, &demux->in_segment);
387 /* in either case, clear some state and generate newsegment later on */
388 GST_OBJECT_LOCK (demux);
389 demux->segment_ts = GST_CLOCK_TIME_NONE;
390 demux->in_gap = GST_CLOCK_TIME_NONE;
391 demux->need_newsegment = TRUE;
392 gst_asf_demux_reset_stream_state_after_discont (demux);
393 GST_OBJECT_UNLOCK (demux);
395 gst_event_unref (event);
401 if (demux->state == GST_ASF_DEMUX_STATE_HEADER) {
402 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
403 (_("This stream contains no data.")),
404 ("got eos and didn't receive a complete header object"));
407 flow = gst_asf_demux_push_complete_payloads (demux, TRUE);
408 if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
409 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
410 (_("Internal data stream error.")),
411 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
415 GST_OBJECT_LOCK (demux);
416 gst_adapter_clear (demux->adapter);
417 GST_OBJECT_UNLOCK (demux);
418 gst_asf_demux_send_event_unlocked (demux, event);
422 case GST_EVENT_FLUSH_STOP:
423 GST_OBJECT_LOCK (demux);
424 gst_asf_demux_reset_stream_state_after_discont (demux);
425 GST_OBJECT_UNLOCK (demux);
426 gst_asf_demux_send_event_unlocked (demux, event);
427 /* upon activation, latency is no longer introduced, e.g. after seek */
428 if (demux->activated_streams)
433 ret = gst_pad_event_default (pad, parent, event);
441 gst_asf_demux_seek_index_lookup (GstASFDemux * demux, guint * packet,
442 GstClockTime seek_time, GstClockTime * p_idx_time, guint * speed,
443 gboolean next, gboolean * eos)
445 GstClockTime idx_time;
451 if (G_UNLIKELY (demux->sidx_num_entries == 0 || demux->sidx_interval == 0))
454 idx = (guint) ((seek_time + demux->preroll) / demux->sidx_interval);
457 /* if we want the next keyframe, we have to go forward till we find
458 a different packet number */
460 if (idx >= demux->sidx_num_entries - 1) {
461 /* If we get here, we're asking for next keyframe after the last one. There isn't one. */
466 for (idx2 = idx + 1; idx2 < demux->sidx_num_entries; ++idx2) {
467 if (demux->sidx_entries[idx].packet != demux->sidx_entries[idx2].packet) {
474 if (G_UNLIKELY (idx >= demux->sidx_num_entries)) {
480 *packet = demux->sidx_entries[idx].packet;
482 *speed = demux->sidx_entries[idx].count;
484 /* so we get closer to the actual time of the packet ... actually, let's not
485 * do this, since we throw away superfluous payloads before the seek position
486 * anyway; this way, our key unit seek 'snap resolution' is a bit better
487 * (ie. same as index resolution) */
489 while (idx > 0 && demux->sidx_entries[idx-1] == demux->sidx_entries[idx])
493 idx_time = demux->sidx_interval * idx;
494 if (G_LIKELY (idx_time >= demux->preroll))
495 idx_time -= demux->preroll;
497 GST_DEBUG_OBJECT (demux, "%" GST_TIME_FORMAT " => packet %u at %"
498 GST_TIME_FORMAT, GST_TIME_ARGS (seek_time), *packet,
499 GST_TIME_ARGS (idx_time));
501 if (G_LIKELY (p_idx_time))
502 *p_idx_time = idx_time;
508 gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * demux)
512 gst_adapter_clear (demux->adapter);
514 GST_DEBUG_OBJECT (demux, "reset stream state");
516 for (n = 0; n < demux->num_streams; n++) {
517 demux->stream[n].discont = TRUE;
518 demux->stream[n].last_flow = GST_FLOW_OK;
520 while (demux->stream[n].payloads->len > 0) {
524 last = demux->stream[n].payloads->len - 1;
525 payload = &g_array_index (demux->stream[n].payloads, AsfPayload, last);
526 gst_buffer_replace (&payload->buf, NULL);
527 g_array_remove_index (demux->stream[n].payloads, last);
533 gst_asf_demux_mark_discont (GstASFDemux * demux)
537 GST_DEBUG_OBJECT (demux, "Mark stream discont");
539 for (n = 0; n < demux->num_streams; n++)
540 demux->stream[n].discont = TRUE;
543 /* do a seek in push based mode */
545 gst_asf_demux_handle_seek_push (GstASFDemux * demux, GstEvent * event)
550 GstSeekType cur_type, stop_type;
555 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
558 stop_type = GST_SEEK_TYPE_NONE;
561 GST_DEBUG_OBJECT (demux, "seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (cur));
563 /* determine packet, by index or by estimation */
564 if (!gst_asf_demux_seek_index_lookup (demux, &packet, cur, NULL, NULL, FALSE,
567 (guint) gst_util_uint64_scale (demux->num_packets, cur,
571 if (packet > demux->num_packets) {
572 GST_DEBUG_OBJECT (demux, "could not determine packet to seek to, "
577 GST_DEBUG_OBJECT (demux, "seeking to packet %d", packet);
579 cur = demux->data_offset + (packet * demux->packet_size);
581 GST_DEBUG_OBJECT (demux, "Pushing BYTE seek rate %g, "
582 "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT, rate, cur, stop);
583 /* BYTE seek event */
584 event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type, cur,
586 res = gst_pad_push_event (demux->sinkpad, event);
592 gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
594 GstClockTime idx_time;
597 GstSeekType cur_type, stop_type;
599 gboolean only_need_update;
600 gboolean keyunit_sync, after, before, next;
605 guint packet, speed_count = 1;
608 if (G_UNLIKELY (demux->seekable == FALSE || demux->packet_size == 0 ||
609 demux->num_packets == 0 || demux->play_time == 0)) {
610 GST_LOG_OBJECT (demux, "stream is not seekable");
614 if (G_UNLIKELY (!demux->activated_streams)) {
615 GST_LOG_OBJECT (demux, "streams not yet activated, ignoring seek");
619 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
622 if (G_UNLIKELY (format != GST_FORMAT_TIME)) {
623 GST_LOG_OBJECT (demux, "seeking is only supported in TIME format");
627 if (G_UNLIKELY (rate <= 0.0)) {
628 GST_LOG_OBJECT (demux, "backward playback is not supported yet");
632 flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
634 ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
635 keyunit_sync = ((flags & GST_SEEK_FLAG_KEY_UNIT) == GST_SEEK_FLAG_KEY_UNIT);
636 after = ((flags & GST_SEEK_FLAG_SNAP_AFTER) == GST_SEEK_FLAG_SNAP_AFTER);
637 before = ((flags & GST_SEEK_FLAG_SNAP_BEFORE) == GST_SEEK_FLAG_SNAP_BEFORE);
638 next = after && !before;
640 if (G_UNLIKELY (demux->streaming)) {
641 /* support it safely needs more segment handling, e.g. closing etc */
643 GST_LOG_OBJECT (demux, "streaming; non-flushing seek not supported");
646 /* we can (re)construct the start later on, but not the end */
647 if (stop_type != GST_SEEK_TYPE_NONE) {
648 GST_LOG_OBJECT (demux, "streaming; end type must be NONE");
651 gst_event_ref (event);
652 /* upstream might handle TIME seek, e.g. mms or rtsp,
653 * or not, e.g. http, then we give it a hand */
654 if (!gst_pad_push_event (demux->sinkpad, event))
655 return gst_asf_demux_handle_seek_push (demux, event);
660 /* unlock the streaming thread */
661 if (G_LIKELY (flush)) {
662 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
663 gst_asf_demux_send_event_unlocked (demux, gst_event_new_flush_start ());
665 gst_pad_pause_task (demux->sinkpad);
668 /* grab the stream lock so that streaming cannot continue, for
669 * non flushing seeks when the element is in PAUSED this could block
671 GST_PAD_STREAM_LOCK (demux->sinkpad);
673 /* we now can stop flushing, since we have the stream lock now */
674 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop (TRUE));
676 if (G_LIKELY (flush))
677 gst_asf_demux_send_event_unlocked (demux, gst_event_new_flush_stop (TRUE));
679 /* operating on copy of segment until we know the seek worked */
680 segment = demux->segment;
682 if (G_UNLIKELY (demux->segment_running && !flush)) {
683 GstSegment newsegment;
686 /* create the segment event to close the current segment */
687 gst_segment_copy_into (&segment, &newsegment);
688 newseg = gst_event_new_segment (&newsegment);
690 gst_asf_demux_send_event_unlocked (demux, newseg);
693 gst_segment_do_seek (&segment, rate, format, flags, cur_type,
694 cur, stop_type, stop, &only_need_update);
696 GST_DEBUG_OBJECT (demux, "seeking to time %" GST_TIME_FORMAT ", segment: "
697 "%" GST_SEGMENT_FORMAT, GST_TIME_ARGS (segment.start), &segment);
699 seek_time = segment.start;
701 /* FIXME: should check the KEY_UNIT flag; need to adjust position to
702 * real start of data and segment_start to indexed time for key unit seek*/
703 if (G_UNLIKELY (!gst_asf_demux_seek_index_lookup (demux, &packet, seek_time,
704 &idx_time, &speed_count, next, &eos))) {
708 demux->packet = demux->num_packets;
712 /* First try to query our source to see if it can convert for us. This is
713 the case when our source is an mms stream, notice that in this case
714 gstmms will do a time based seek to get the byte offset, this is not a
715 problem as the seek to this offset needs to happen anway. */
716 if (gst_pad_peer_query_convert (demux->sinkpad, GST_FORMAT_TIME, seek_time,
717 GST_FORMAT_BYTES, &offset)) {
718 packet = (offset - demux->data_offset) / demux->packet_size;
719 GST_LOG_OBJECT (demux, "convert %" GST_TIME_FORMAT
720 " to bytes query result: %" G_GINT64_FORMAT ", data_ofset: %"
721 G_GINT64_FORMAT ", packet_size: %u," " resulting packet: %u\n",
722 GST_TIME_ARGS (seek_time), offset, demux->data_offset,
723 demux->packet_size, packet);
725 /* FIXME: For streams containing video, seek to an earlier position in
726 * the hope of hitting a keyframe and let the sinks throw away the stuff
727 * before the segment start. For audio-only this is unnecessary as every
729 if (flush && (demux->accurate || (keyunit_sync && !next))
730 && demux->num_video_streams > 0) {
731 seek_time -= 5 * GST_SECOND;
736 packet = (guint) gst_util_uint64_scale (demux->num_packets,
737 seek_time, demux->play_time);
739 if (packet > demux->num_packets)
740 packet = demux->num_packets;
743 if (G_LIKELY (keyunit_sync)) {
744 GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
745 GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
746 GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
747 segment.start = idx_time;
748 segment.position = idx_time;
749 segment.time = idx_time;
753 GST_DEBUG_OBJECT (demux, "seeking to packet %u (%d)", packet, speed_count);
755 GST_OBJECT_LOCK (demux);
756 demux->segment = segment;
757 demux->packet = packet;
758 demux->need_newsegment = TRUE;
759 demux->speed_packets = speed_count;
760 gst_asf_demux_reset_stream_state_after_discont (demux);
761 GST_OBJECT_UNLOCK (demux);
764 /* restart our task since it might have been stopped when we did the flush */
765 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_asf_demux_loop,
768 /* streaming can continue now */
769 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
775 gst_asf_demux_handle_src_event (GstPad * pad, GstObject * parent,
781 demux = GST_ASF_DEMUX (parent);
783 switch (GST_EVENT_TYPE (event)) {
785 GST_LOG_OBJECT (pad, "seek event");
786 ret = gst_asf_demux_handle_seek_event (demux, event);
787 gst_event_unref (event);
790 case GST_EVENT_NAVIGATION:
791 /* just drop these two silently */
792 gst_event_unref (event);
796 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
797 ret = gst_pad_event_default (pad, parent, event);
804 static inline guint32
805 gst_asf_demux_identify_guid (const ASFGuidHash * guids, ASFGuid * guid)
809 ret = gst_asf_identify_guid (guids, guid);
811 GST_LOG ("%s 0x%08x-0x%08x-0x%08x-0x%08x",
812 gst_asf_get_guid_nick (guids, ret),
813 guid->v1, guid->v2, guid->v3, guid->v4);
825 /* expect is true when the user is expeting an object,
826 * when false, it will give no warnings if the object
830 asf_demux_peek_object (GstASFDemux * demux, const guint8 * data,
831 guint data_len, AsfObject * object, gboolean expect)
835 if (data_len < ASF_OBJECT_HEADER_SIZE)
838 guid.v1 = GST_READ_UINT32_LE (data + 0);
839 guid.v2 = GST_READ_UINT32_LE (data + 4);
840 guid.v3 = GST_READ_UINT32_LE (data + 8);
841 guid.v4 = GST_READ_UINT32_LE (data + 12);
843 object->size = GST_READ_UINT64_LE (data + 16);
845 /* FIXME: make asf_demux_identify_object_guid() */
846 object->id = gst_asf_demux_identify_guid (asf_object_guids, &guid);
847 if (object->id == ASF_OBJ_UNDEFINED && expect) {
848 GST_WARNING_OBJECT (demux, "Unknown object %08x-%08x-%08x-%08x",
849 guid.v1, guid.v2, guid.v3, guid.v4);
856 gst_asf_demux_release_old_pads (GstASFDemux * demux)
858 GST_DEBUG_OBJECT (demux, "Releasing old pads");
860 while (demux->old_num_streams > 0) {
861 gst_pad_push_event (demux->old_stream[demux->old_num_streams - 1].pad,
862 gst_event_new_eos ());
863 gst_asf_demux_free_stream (demux,
864 &demux->old_stream[demux->old_num_streams - 1]);
865 --demux->old_num_streams;
867 memset (demux->old_stream, 0, sizeof (demux->old_stream));
868 demux->old_num_streams = 0;
872 gst_asf_demux_chain_headers (GstASFDemux * demux)
876 guint8 *header_data, *data = NULL;
877 const guint8 *cdata = NULL;
880 cdata = (guint8 *) gst_adapter_map (demux->adapter, ASF_OBJECT_HEADER_SIZE);
884 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
885 if (obj.id != ASF_OBJ_HEADER)
888 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
890 /* + 50 for non-packet data at beginning of ASF_OBJ_DATA */
891 if (gst_adapter_available (demux->adapter) < obj.size + 50)
894 data = gst_adapter_take (demux->adapter, obj.size + 50);
897 header_size = obj.size;
898 flow = gst_asf_demux_process_object (demux, &header_data, &header_size);
899 if (flow != GST_FLOW_OK)
902 /* calculate where the packet data starts */
903 demux->data_offset = obj.size + 50;
905 /* now parse the beginning of the ASF_OBJ_DATA object */
906 if (!gst_asf_demux_parse_data_object_start (demux, data + obj.size))
909 if (demux->num_streams == 0)
918 GST_LOG_OBJECT (demux, "not enough data in adapter yet");
925 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
926 ("This doesn't seem to be an ASF file"));
928 return GST_FLOW_ERROR;
933 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
934 ("header parsing failed, or no streams found, flow = %s",
935 gst_flow_get_name (flow)));
937 return GST_FLOW_ERROR;
942 gst_asf_demux_aggregate_flow_return (GstASFDemux * demux, AsfStream * stream,
947 GST_DEBUG_OBJECT (demux, "Aggregating");
949 /* Store the value */
950 stream->last_flow = flow;
952 /* any other error that is not not-linked can be returned right away */
953 if (flow != GST_FLOW_NOT_LINKED)
956 for (i = 0; i < demux->num_streams; i++) {
957 if (demux->stream[i].active) {
958 flow = demux->stream[i].last_flow;
959 GST_DEBUG_OBJECT (demux, "Aggregating: flow %i return %s", i,
960 gst_flow_get_name (flow));
961 if (flow != GST_FLOW_NOT_LINKED)
966 /* If we got here, then all our active streams are not linked */
972 gst_asf_demux_pull_data (GstASFDemux * demux, guint64 offset, guint size,
973 GstBuffer ** p_buf, GstFlowReturn * p_flow)
978 GST_LOG_OBJECT (demux, "pulling buffer at %" G_GUINT64_FORMAT "+%u",
981 flow = gst_pad_pull_range (demux->sinkpad, offset, size, p_buf);
983 if (G_LIKELY (p_flow))
986 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
987 GST_DEBUG_OBJECT (demux, "flow %s pulling buffer at %" G_GUINT64_FORMAT
988 "+%u", gst_flow_get_name (flow), offset, size);
993 g_assert (*p_buf != NULL);
995 buffer_size = gst_buffer_get_size (*p_buf);
996 if (G_UNLIKELY (buffer_size < size)) {
997 GST_DEBUG_OBJECT (demux, "short read pulling buffer at %" G_GUINT64_FORMAT
998 "+%u (got only %" G_GSIZE_FORMAT " bytes)", offset, size, buffer_size);
999 gst_buffer_unref (*p_buf);
1000 if (G_LIKELY (p_flow))
1001 *p_flow = GST_FLOW_EOS;
1010 gst_asf_demux_pull_indices (GstASFDemux * demux)
1012 GstBuffer *buf = NULL;
1016 offset = demux->index_offset;
1018 if (G_UNLIKELY (offset == 0)) {
1019 GST_DEBUG_OBJECT (demux, "can't read indices, don't know index offset");
1023 while (gst_asf_demux_pull_data (demux, offset, 16 + 8, &buf, NULL)) {
1029 gst_buffer_map (buf, &map, GST_MAP_READ);
1030 g_assert (map.size >= 16 + 8);
1031 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1032 gst_buffer_unmap (buf, &map);
1033 gst_buffer_replace (&buf, NULL);
1035 /* check for sanity */
1036 if (G_UNLIKELY (obj.size > (5 * 1024 * 1024))) {
1037 GST_DEBUG_OBJECT (demux, "implausible index object size, bailing out");
1041 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, offset, obj.size, &buf,
1045 GST_LOG_OBJECT (demux, "index object at offset 0x%" G_GINT64_MODIFIER "X"
1046 ", size %u", offset, (guint) obj.size);
1048 offset += obj.size; /* increase before _process_object changes it */
1050 gst_buffer_map (buf, &map, GST_MAP_READ);
1051 g_assert (map.size >= obj.size);
1052 bufdata = (guint8 *) map.data;
1053 flow = gst_asf_demux_process_object (demux, &bufdata, &obj.size);
1054 gst_buffer_unmap (buf, &map);
1055 gst_buffer_replace (&buf, NULL);
1057 if (G_UNLIKELY (flow != GST_FLOW_OK))
1062 GST_DEBUG_OBJECT (demux, "read %u index objects", num_read);
1066 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data)
1070 asf_demux_peek_object (demux, data, 50, &obj, TRUE);
1071 if (obj.id != ASF_OBJ_DATA) {
1072 GST_WARNING_OBJECT (demux, "headers not followed by a DATA object");
1076 demux->state = GST_ASF_DEMUX_STATE_DATA;
1078 if (!demux->broadcast && obj.size > 50) {
1079 demux->data_size = obj.size - 50;
1080 /* CHECKME: for at least one file this is off by +158 bytes?! */
1081 demux->index_offset = demux->data_offset + demux->data_size;
1083 demux->data_size = 0;
1084 demux->index_offset = 0;
1089 if (!demux->broadcast) {
1090 /* skip object header (24 bytes) and file GUID (16 bytes) */
1091 demux->num_packets = GST_READ_UINT64_LE (data + (16 + 8) + 16);
1093 demux->num_packets = 0;
1096 if (demux->num_packets == 0)
1097 demux->seekable = FALSE;
1099 /* fallback in the unlikely case that headers are inconsistent, can't hurt */
1100 if (demux->data_size == 0 && demux->num_packets > 0) {
1101 demux->data_size = demux->num_packets * demux->packet_size;
1102 demux->index_offset = demux->data_offset + demux->data_size;
1105 /* process pending stream objects and create pads for those */
1106 gst_asf_demux_process_queued_extended_stream_objects (demux);
1108 GST_INFO_OBJECT (demux, "Stream has %" G_GUINT64_FORMAT " packets, "
1109 "data_offset=%" G_GINT64_FORMAT ", data_size=%" G_GINT64_FORMAT
1110 ", index_offset=%" G_GUINT64_FORMAT, demux->num_packets,
1111 demux->data_offset, demux->data_size, demux->index_offset);
1117 gst_asf_demux_pull_headers (GstASFDemux * demux)
1121 GstBuffer *buf = NULL;
1126 GST_LOG_OBJECT (demux, "reading headers");
1128 /* pull HEADER object header, so we know its size */
1129 if (!gst_asf_demux_pull_data (demux, demux->base_offset, 16 + 8, &buf, NULL))
1132 gst_buffer_map (buf, &map, GST_MAP_READ);
1133 g_assert (map.size >= 16 + 8);
1134 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1135 gst_buffer_unmap (buf, &map);
1136 gst_buffer_replace (&buf, NULL);
1138 if (obj.id != ASF_OBJ_HEADER)
1141 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
1143 /* pull HEADER object */
1144 if (!gst_asf_demux_pull_data (demux, demux->base_offset, obj.size, &buf,
1148 size = obj.size; /* don't want obj.size changed */
1149 gst_buffer_map (buf, &map, GST_MAP_READ);
1150 g_assert (map.size >= size);
1151 bufdata = (guint8 *) map.data;
1152 flow = gst_asf_demux_process_object (demux, &bufdata, &size);
1153 gst_buffer_unmap (buf, &map);
1154 gst_buffer_replace (&buf, NULL);
1156 if (flow != GST_FLOW_OK) {
1157 GST_WARNING_OBJECT (demux, "process_object: %s", gst_flow_get_name (flow));
1161 /* calculate where the packet data starts */
1162 demux->data_offset = demux->base_offset + obj.size + 50;
1164 /* now pull beginning of DATA object before packet data */
1165 if (!gst_asf_demux_pull_data (demux, demux->base_offset + obj.size, 50, &buf,
1169 gst_buffer_map (buf, &map, GST_MAP_READ);
1170 g_assert (map.size >= size);
1171 bufdata = (guint8 *) map.data;
1172 if (!gst_asf_demux_parse_data_object_start (demux, bufdata))
1175 if (demux->num_streams == 0)
1178 gst_buffer_unmap (buf, &map);
1179 gst_buffer_replace (&buf, NULL);
1187 gst_buffer_unmap (buf, &map);
1188 gst_buffer_replace (&buf, NULL);
1190 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1191 ("This doesn't seem to be an ASF file"));
1200 gst_buffer_unmap (buf, &map);
1201 gst_buffer_replace (&buf, NULL);
1202 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), (NULL));
1208 all_streams_prerolled (GstASFDemux * demux)
1210 GstClockTime preroll_time;
1211 guint i, num_no_data = 0;
1213 /* Allow at least 500ms of preroll_time */
1214 preroll_time = MAX (demux->preroll, 500 * GST_MSECOND);
1216 /* returns TRUE as long as there isn't a stream which (a) has data queued
1217 * and (b) the timestamp of last piece of data queued is < demux->preroll
1218 * AND there is at least one other stream with data queued */
1219 for (i = 0; i < demux->num_streams; ++i) {
1220 AsfPayload *last_payload;
1224 stream = &demux->stream[i];
1225 if (G_UNLIKELY (stream->payloads->len == 0)) {
1227 GST_LOG_OBJECT (stream->pad, "no data queued");
1231 last_idx = stream->payloads->len - 1;
1232 last_payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1234 GST_LOG_OBJECT (stream->pad, "checking if %" GST_TIME_FORMAT " > %"
1235 GST_TIME_FORMAT, GST_TIME_ARGS (last_payload->ts),
1236 GST_TIME_ARGS (preroll_time));
1237 if (G_UNLIKELY (last_payload->ts <= preroll_time)) {
1238 GST_LOG_OBJECT (stream->pad, "not beyond preroll point yet");
1243 if (G_UNLIKELY (num_no_data == demux->num_streams))
1251 gst_asf_demux_have_mutually_exclusive_active_stream (GstASFDemux * demux,
1256 for (l = demux->mut_ex_streams; l != NULL; l = l->next) {
1259 /* check for each mutual exclusion group whether it affects this stream */
1260 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1261 if (*mes == stream->id) {
1262 /* we are in this group; let's check if we've already activated streams
1263 * that are in the same group (and hence mutually exclusive to this
1265 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1268 for (i = 0; i < demux->num_streams; ++i) {
1269 if (demux->stream[i].id == *mes && demux->stream[i].active) {
1270 GST_LOG_OBJECT (demux, "stream with ID %d is mutually exclusive "
1271 "to already active stream with ID %d", stream->id,
1272 demux->stream[i].id);
1277 /* we can only be in this group once, let's break out and move on to
1278 * the next mutual exclusion group */
1289 gst_asf_demux_check_activate_streams (GstASFDemux * demux, gboolean force)
1293 if (demux->activated_streams)
1296 if (!all_streams_prerolled (demux) && !force) {
1297 GST_DEBUG_OBJECT (demux, "not all streams with data beyond preroll yet");
1301 for (i = 0; i < demux->num_streams; ++i) {
1302 AsfStream *stream = &demux->stream[i];
1304 if (stream->payloads->len > 0) {
1305 /* we don't check mutual exclusion stuff here; either we have data for
1306 * a stream, then we active it, or we don't, then we'll ignore it */
1307 GST_LOG_OBJECT (stream->pad, "is prerolled - activate!");
1308 gst_asf_demux_activate_stream (demux, stream);
1310 GST_LOG_OBJECT (stream->pad, "no data, ignoring stream");
1314 gst_asf_demux_release_old_pads (demux);
1316 demux->activated_streams = TRUE;
1317 GST_LOG_OBJECT (demux, "signalling no more pads");
1318 gst_element_no_more_pads (GST_ELEMENT (demux));
1322 /* returns the stream that has a complete payload with the lowest timestamp
1323 * queued, or NULL (we push things by timestamp because during the internal
1324 * prerolling we might accumulate more data then the external queues can take,
1325 * so we'd lock up if we pushed all accumulated data for stream N in one go) */
1327 gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
1329 AsfPayload *best_payload = NULL;
1330 AsfStream *best_stream = NULL;
1333 for (i = 0; i < demux->num_streams; ++i) {
1336 stream = &demux->stream[i];
1338 /* Don't push any data until we have at least one payload that falls within
1339 * the current segment. This way we can remove out-of-segment payloads that
1340 * don't need to be decoded after a seek, sending only data from the
1341 * keyframe directly before our segment start */
1342 if (stream->payloads->len > 0) {
1343 AsfPayload *payload;
1346 last_idx = stream->payloads->len - 1;
1347 payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1348 if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1349 (payload->ts < demux->segment.start))) {
1350 if (G_UNLIKELY ((!demux->accurate) && payload->keyframe)) {
1351 GST_DEBUG_OBJECT (stream->pad,
1352 "Found keyframe, updating segment start to %" GST_TIME_FORMAT,
1353 GST_TIME_ARGS (payload->ts));
1354 demux->segment.start = payload->ts;
1355 demux->segment.time = payload->ts;
1357 GST_DEBUG_OBJECT (stream->pad, "Last queued payload has timestamp %"
1358 GST_TIME_FORMAT " which is before our segment start %"
1359 GST_TIME_FORMAT ", not pushing yet", GST_TIME_ARGS (payload->ts),
1360 GST_TIME_ARGS (demux->segment.start));
1365 /* Now see if there's a complete payload queued for this stream */
1367 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1368 if (!gst_asf_payload_is_complete (payload))
1371 /* ... and whether its timestamp is lower than the current best */
1372 if (best_stream == NULL || best_payload->ts > payload->ts) {
1373 best_stream = stream;
1374 best_payload = payload;
1382 static GstFlowReturn
1383 gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
1386 GstFlowReturn ret = GST_FLOW_OK;
1388 if (G_UNLIKELY (!demux->activated_streams)) {
1389 if (!gst_asf_demux_check_activate_streams (demux, force))
1391 /* streams are now activated */
1394 /* wait until we had a chance to "lock on" some payload's timestamp */
1395 if (G_UNLIKELY (demux->need_newsegment
1396 && !GST_CLOCK_TIME_IS_VALID (demux->segment_ts)))
1399 while ((stream = gst_asf_demux_find_stream_with_complete_payload (demux))) {
1400 AsfPayload *payload;
1402 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1404 /* do we need to send a newsegment event */
1405 if ((G_UNLIKELY (demux->need_newsegment))) {
1407 /* safe default if insufficient upstream info */
1408 if (!GST_CLOCK_TIME_IS_VALID (demux->in_gap))
1411 if (demux->segment.stop == GST_CLOCK_TIME_NONE &&
1412 demux->segment.duration > 0) {
1413 /* slight HACK; prevent clipping of last bit */
1414 demux->segment.stop = demux->segment.duration + demux->in_gap;
1417 /* FIXME : only if ACCURATE ! */
1418 if (G_LIKELY (!demux->accurate
1419 && (GST_CLOCK_TIME_IS_VALID (payload->ts)))) {
1420 GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
1421 GST_TIME_ARGS (payload->ts));
1422 demux->segment.start = payload->ts;
1423 demux->segment.time = payload->ts;
1426 GST_DEBUG_OBJECT (demux, "sending new-segment event %" GST_SEGMENT_FORMAT,
1429 /* note: we fix up all timestamps to start from 0, so this should be ok */
1430 gst_asf_demux_send_event_unlocked (demux,
1431 gst_event_new_segment (&demux->segment));
1433 /* now post any global tags we may have found */
1434 if (demux->taglist == NULL)
1435 demux->taglist = gst_tag_list_new_empty ();
1437 gst_tag_list_add (demux->taglist, GST_TAG_MERGE_REPLACE,
1438 GST_TAG_CONTAINER_FORMAT, "ASF", NULL);
1440 GST_DEBUG_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, demux->taglist);
1441 gst_asf_demux_send_event_unlocked (demux,
1442 gst_event_new_tag ("GstDemuxer", demux->taglist));
1443 demux->taglist = NULL;
1445 demux->need_newsegment = FALSE;
1446 demux->segment_running = TRUE;
1449 /* Do we have tags pending for this stream? */
1450 if (G_UNLIKELY (stream->pending_tags)) {
1451 GST_LOG_OBJECT (stream->pad, "%" GST_PTR_FORMAT, stream->pending_tags);
1452 gst_pad_push_event (stream->pad,
1453 gst_event_new_tag ("GstDemuxer", stream->pending_tags));
1454 stream->pending_tags = NULL;
1457 /* We have the whole packet now so we should push the packet to
1458 * the src pad now. First though we should check if we need to do
1460 if (G_UNLIKELY (demux->span > 1)) {
1461 gst_asf_demux_descramble_buffer (demux, stream, &payload->buf);
1464 payload->buf = gst_buffer_make_writable (payload->buf);
1466 if (G_LIKELY (!payload->keyframe)) {
1467 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DELTA_UNIT);
1470 if (G_UNLIKELY (stream->discont)) {
1471 GST_DEBUG_OBJECT (stream->pad, "marking DISCONT on stream");
1472 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1473 stream->discont = FALSE;
1476 if (G_UNLIKELY (stream->is_video && payload->par_x && payload->par_y &&
1477 (payload->par_x != stream->par_x) &&
1478 (payload->par_y != stream->par_y))) {
1479 GST_DEBUG ("Updating PAR (%d/%d => %d/%d)",
1480 stream->par_x, stream->par_y, payload->par_x, payload->par_y);
1481 stream->par_x = payload->par_x;
1482 stream->par_y = payload->par_y;
1483 stream->caps = gst_caps_make_writable (stream->caps);
1484 gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
1485 GST_TYPE_FRACTION, stream->par_x, stream->par_y, NULL);
1486 gst_pad_set_caps (stream->pad, stream->caps);
1489 if (G_UNLIKELY (stream->interlaced != payload->interlaced)) {
1490 GST_DEBUG ("Updating interlaced status (%d => %d)", stream->interlaced,
1491 payload->interlaced);
1492 stream->interlaced = payload->interlaced;
1493 stream->caps = gst_caps_make_writable (stream->caps);
1494 gst_caps_set_simple (stream->caps, "interlace-mode", G_TYPE_BOOLEAN,
1495 (stream->interlaced ? "mixed" : "progressive"), NULL);
1496 gst_pad_set_caps (stream->pad, stream->caps);
1499 /* (sort of) interpolate timestamps using upstream "frame of reference",
1500 * typically useful for live src, but might (unavoidably) mess with
1501 * position reporting if a live src is playing not so live content
1502 * (e.g. rtspsrc taking some time to fall back to tcp) */
1503 GST_BUFFER_TIMESTAMP (payload->buf) = payload->ts + demux->in_gap;
1504 if (payload->duration == GST_CLOCK_TIME_NONE
1505 && stream->ext_props.avg_time_per_frame != 0)
1506 GST_BUFFER_DURATION (payload->buf) =
1507 stream->ext_props.avg_time_per_frame * 100;
1509 GST_BUFFER_DURATION (payload->buf) = payload->duration;
1511 /* FIXME: we should really set durations on buffers if we can */
1513 GST_LOG_OBJECT (stream->pad, "pushing buffer, ts=%" GST_TIME_FORMAT
1514 ", dur=%" GST_TIME_FORMAT " size=%" G_GSIZE_FORMAT,
1515 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (payload->buf)),
1516 GST_TIME_ARGS (GST_BUFFER_DURATION (payload->buf)),
1517 gst_buffer_get_size (payload->buf));
1519 ret = gst_pad_push (stream->pad, payload->buf);
1520 ret = gst_asf_demux_aggregate_flow_return (demux, stream, ret);
1521 payload->buf = NULL;
1522 g_array_remove_index (stream->payloads, 0);
1524 /* Break out as soon as we have an issue */
1525 if (G_UNLIKELY (ret != GST_FLOW_OK))
1533 gst_asf_demux_check_buffer_is_header (GstASFDemux * demux, GstBuffer * buf)
1537 g_assert (buf != NULL);
1539 GST_LOG_OBJECT (demux, "Checking if buffer is a header");
1541 gst_buffer_map (buf, &map, GST_MAP_READ);
1543 /* we return false on buffer too small */
1544 if (map.size < ASF_OBJECT_HEADER_SIZE) {
1545 gst_buffer_unmap (buf, &map);
1549 /* check if it is a header */
1550 asf_demux_peek_object (demux, map.data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
1551 gst_buffer_unmap (buf, &map);
1552 if (obj.id == ASF_OBJ_HEADER) {
1559 gst_asf_demux_check_chained_asf (GstASFDemux * demux)
1561 guint64 off = demux->data_offset + (demux->packet * demux->packet_size);
1562 GstFlowReturn ret = GST_FLOW_OK;
1563 GstBuffer *buf = NULL;
1564 gboolean header = FALSE;
1566 /* TODO maybe we should skip index objects after the data and look
1567 * further for a new header */
1568 if (gst_asf_demux_pull_data (demux, off, ASF_OBJECT_HEADER_SIZE, &buf, &ret)) {
1569 g_assert (buf != NULL);
1570 /* check if it is a header */
1571 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1572 GST_DEBUG_OBJECT (demux, "new base offset: %" G_GUINT64_FORMAT, off);
1573 demux->base_offset = off;
1577 gst_buffer_unref (buf);
1584 gst_asf_demux_loop (GstASFDemux * demux)
1586 GstFlowReturn flow = GST_FLOW_OK;
1587 GstBuffer *buf = NULL;
1589 gboolean sent_eos = FALSE;
1591 if (G_UNLIKELY (demux->state == GST_ASF_DEMUX_STATE_HEADER)) {
1592 if (!gst_asf_demux_pull_headers (demux)) {
1593 flow = GST_FLOW_ERROR;
1597 gst_asf_demux_pull_indices (demux);
1600 g_assert (demux->state == GST_ASF_DEMUX_STATE_DATA);
1602 if (G_UNLIKELY (demux->num_packets != 0
1603 && demux->packet >= demux->num_packets))
1606 GST_LOG_OBJECT (demux, "packet %u/%u", (guint) demux->packet + 1,
1607 (guint) demux->num_packets);
1609 off = demux->data_offset + (demux->packet * demux->packet_size);
1611 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, off,
1612 demux->packet_size * demux->speed_packets, &buf, &flow))) {
1613 GST_DEBUG_OBJECT (demux, "got flow %s", gst_flow_get_name (flow));
1614 if (flow == GST_FLOW_EOS)
1616 else if (flow == GST_FLOW_FLUSHING) {
1617 GST_DEBUG_OBJECT (demux, "Not fatal");
1623 if (G_LIKELY (demux->speed_packets == 1)) {
1624 GstAsfDemuxParsePacketError err;
1625 err = gst_asf_demux_parse_packet (demux, buf);
1626 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1627 /* when we don't know when the data object ends, we should check
1628 * for a chained asf */
1629 if (demux->num_packets == 0) {
1630 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1631 GST_INFO_OBJECT (demux, "Chained asf found");
1632 demux->base_offset = off;
1633 gst_asf_demux_reset (demux, TRUE);
1634 gst_buffer_unref (buf);
1638 /* FIXME: We should tally up fatal errors and error out only
1639 * after a few broken packets in a row? */
1641 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1642 gst_buffer_unref (buf);
1647 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1653 for (n = 0; n < demux->speed_packets; n++) {
1655 GstAsfDemuxParsePacketError err;
1658 gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL,
1659 n * demux->packet_size, demux->packet_size);
1660 err = gst_asf_demux_parse_packet (demux, sub);
1661 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1662 /* when we don't know when the data object ends, we should check
1663 * for a chained asf */
1664 if (demux->num_packets == 0) {
1665 if (gst_asf_demux_check_buffer_is_header (demux, sub)) {
1666 GST_INFO_OBJECT (demux, "Chained asf found");
1667 demux->base_offset = off + n * demux->packet_size;
1668 gst_asf_demux_reset (demux, TRUE);
1669 gst_buffer_unref (sub);
1670 gst_buffer_unref (buf);
1674 /* FIXME: We should tally up fatal errors and error out only
1675 * after a few broken packets in a row? */
1677 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1681 gst_buffer_unref (sub);
1683 if (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)
1684 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1690 /* reset speed pull */
1691 demux->speed_packets = 1;
1694 gst_buffer_unref (buf);
1696 if (G_UNLIKELY (demux->num_packets > 0
1697 && demux->packet >= demux->num_packets)) {
1698 GST_LOG_OBJECT (demux, "reached EOS");
1702 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1703 GST_DEBUG_OBJECT (demux, "pushing complete payloads failed");
1707 /* check if we're at the end of the configured segment */
1708 /* FIXME: check if segment end reached etc. */
1714 /* if we haven't activated our streams yet, this might be because we have
1715 * less data queued than required for preroll; force stream activation and
1716 * send any pending payloads before sending EOS */
1717 if (!demux->activated_streams)
1718 gst_asf_demux_push_complete_payloads (demux, TRUE);
1720 /* we want to push an eos or post a segment-done in any case */
1721 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1724 /* for segment playback we need to post when (in stream time)
1725 * we stopped, this is either stop (when set) or the duration. */
1726 if ((stop = demux->segment.stop) == -1)
1727 stop = demux->segment.duration;
1729 GST_INFO_OBJECT (demux, "Posting segment-done, at end of segment");
1730 gst_element_post_message (GST_ELEMENT_CAST (demux),
1731 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
1733 } else if (flow != GST_FLOW_EOS) {
1734 /* check if we have a chained asf, in case, we don't eos yet */
1735 if (gst_asf_demux_check_chained_asf (demux)) {
1736 GST_INFO_OBJECT (demux, "Chained ASF starting");
1737 gst_asf_demux_reset (demux, TRUE);
1741 /* normal playback, send EOS to all linked pads */
1742 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
1743 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1745 /* ... and fall through to pause */
1749 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
1750 gst_flow_get_name (flow));
1751 demux->segment_running = FALSE;
1752 gst_pad_pause_task (demux->sinkpad);
1754 /* For the error cases (not EOS) */
1756 if (flow == GST_FLOW_EOS)
1757 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1758 else if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
1759 /* Post an error. Hopefully something else already has, but if not... */
1760 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1761 (_("Internal data stream error.")),
1762 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
1771 GST_DEBUG_OBJECT (demux, "Read failed, doh");
1772 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1773 flow = GST_FLOW_EOS;
1777 /* See FIXMEs above */
1780 gst_buffer_unref (buf);
1781 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1782 ("Error parsing ASF packet %u", (guint) demux->packet));
1783 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1784 flow = GST_FLOW_ERROR;
1790 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
1791 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
1792 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
1795 gst_asf_demux_check_header (GstASFDemux * demux)
1798 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
1799 ASF_OBJECT_HEADER_SIZE);
1800 if (cdata == NULL) /* need more data */
1801 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
1803 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE);
1804 if (obj.id != ASF_OBJ_HEADER) {
1805 return GST_ASF_DEMUX_CHECK_HEADER_NO;
1807 return GST_ASF_DEMUX_CHECK_HEADER_YES;
1811 static GstFlowReturn
1812 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
1814 GstFlowReturn ret = GST_FLOW_OK;
1817 demux = GST_ASF_DEMUX (parent);
1819 GST_LOG_OBJECT (demux,
1820 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
1821 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
1822 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
1824 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
1825 GST_DEBUG_OBJECT (demux, "received DISCONT");
1826 gst_asf_demux_mark_discont (demux);
1829 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
1830 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
1831 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
1832 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
1833 ", interpolation gap: %" GST_TIME_FORMAT,
1834 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
1837 gst_adapter_push (demux->adapter, buf);
1839 switch (demux->state) {
1840 case GST_ASF_DEMUX_STATE_INDEX:{
1841 gint result = gst_asf_demux_check_header (demux);
1842 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
1845 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
1846 /* we don't care about this, probably an index */
1847 /* TODO maybe would be smarter to skip all the indices
1848 * until we got a new header or EOS to decide */
1849 GST_LOG_OBJECT (demux, "Received index object, its EOS");
1852 GST_INFO_OBJECT (demux, "Chained asf starting");
1853 /* cleanup and get ready for a chained asf */
1854 gst_asf_demux_reset (demux, TRUE);
1858 case GST_ASF_DEMUX_STATE_HEADER:{
1859 ret = gst_asf_demux_chain_headers (demux);
1860 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
1862 /* otherwise fall through */
1864 case GST_ASF_DEMUX_STATE_DATA:
1868 data_size = demux->packet_size;
1870 while (gst_adapter_available (demux->adapter) >= data_size) {
1872 GstAsfDemuxParsePacketError err;
1874 /* we don't know the length of the stream
1875 * check for a chained asf everytime */
1876 if (demux->num_packets == 0) {
1877 gint result = gst_asf_demux_check_header (demux);
1879 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
1880 GST_INFO_OBJECT (demux, "Chained asf starting");
1881 /* cleanup and get ready for a chained asf */
1882 gst_asf_demux_reset (demux, TRUE);
1885 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
1886 && demux->packet >= demux->num_packets)) {
1887 /* do not overshoot data section when streaming */
1891 buf = gst_adapter_take_buffer (demux->adapter, data_size);
1893 /* FIXME: We should tally up fatal errors and error out only
1894 * after a few broken packets in a row? */
1895 err = gst_asf_demux_parse_packet (demux, buf);
1897 gst_buffer_unref (buf);
1899 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
1900 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
1902 GST_WARNING_OBJECT (demux, "Parse error");
1904 if (demux->packet >= 0)
1907 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
1908 && demux->packet >= demux->num_packets)) {
1909 demux->state = GST_ASF_DEMUX_STATE_INDEX;
1914 g_assert_not_reached ();
1918 if (ret != GST_FLOW_OK)
1919 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
1925 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
1931 static inline gboolean
1932 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
1934 if (*p_size < num_bytes)
1937 *p_data += num_bytes;
1938 *p_size -= num_bytes;
1942 static inline guint8
1943 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
1947 g_assert (*p_size >= 1);
1948 ret = GST_READ_UINT8 (*p_data);
1949 *p_data += sizeof (guint8);
1950 *p_size -= sizeof (guint8);
1954 static inline guint16
1955 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
1959 g_assert (*p_size >= 2);
1960 ret = GST_READ_UINT16_LE (*p_data);
1961 *p_data += sizeof (guint16);
1962 *p_size -= sizeof (guint16);
1966 static inline guint32
1967 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
1971 g_assert (*p_size >= 4);
1972 ret = GST_READ_UINT32_LE (*p_data);
1973 *p_data += sizeof (guint32);
1974 *p_size -= sizeof (guint32);
1978 static inline guint64
1979 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
1983 g_assert (*p_size >= 8);
1984 ret = GST_READ_UINT64_LE (*p_data);
1985 *p_data += sizeof (guint64);
1986 *p_size -= sizeof (guint64);
1990 static inline guint32
1991 gst_asf_demux_get_var_length (guint8 type, guint8 ** p_data, guint64 * p_size)
1998 g_assert (*p_size >= 1);
1999 return gst_asf_demux_get_uint8 (p_data, p_size);
2002 g_assert (*p_size >= 2);
2003 return gst_asf_demux_get_uint16 (p_data, p_size);
2006 g_assert (*p_size >= 4);
2007 return gst_asf_demux_get_uint32 (p_data, p_size);
2010 g_assert_not_reached ();
2017 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2018 guint8 ** p_data, guint64 * p_size)
2022 if (*p_size < num_bytes_to_read)
2025 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2026 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2028 *p_data += num_bytes_to_read;
2029 *p_size -= num_bytes_to_read;
2035 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2036 guint8 ** p_data, guint64 * p_size)
2040 if (*p_size < num_bytes_to_read)
2043 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2044 *p_data += num_bytes_to_read;
2045 *p_size -= num_bytes_to_read;
2050 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2051 guint8 ** p_data, guint64 * p_size)
2061 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2064 *p_strlen = s_length;
2066 if (s_length == 0) {
2067 GST_WARNING ("zero-length string");
2068 *p_str = g_strdup ("");
2072 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2075 g_assert (s != NULL);
2077 /* just because They don't exist doesn't
2078 * mean They are not out to get you ... */
2079 if (s[s_length - 1] != '\0') {
2080 s = g_realloc (s, s_length + 1);
2084 *p_str = (gchar *) s;
2090 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2092 g_assert (*p_size >= 4 * sizeof (guint32));
2094 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2095 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2096 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2097 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2101 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2104 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2107 /* WAVEFORMATEX Structure */
2108 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2109 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2110 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2111 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2112 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2113 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2114 /* Codec specific data size */
2115 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2120 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2123 if (*p_size < (4 + 4 + 1 + 2))
2126 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2127 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2128 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2129 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2134 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2135 guint8 ** p_data, guint64 * p_size)
2137 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2140 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2141 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2142 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2143 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2144 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2145 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2146 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2147 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2148 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2149 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2150 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2155 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2159 for (i = 0; i < demux->num_streams; i++) {
2160 if (demux->stream[i].id == id)
2161 return &demux->stream[i];
2164 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2169 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2170 GstCaps * caps, guint16 id, gboolean is_video, GstTagList * tags)
2174 gst_pad_use_fixed_caps (src_pad);
2175 gst_pad_set_caps (src_pad, caps);
2177 gst_pad_set_event_function (src_pad,
2178 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2179 gst_pad_set_query_function (src_pad,
2180 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2182 stream = &demux->stream[demux->num_streams];
2183 stream->caps = caps;
2184 stream->pad = src_pad;
2186 stream->fps_known = !is_video; /* bit hacky for audio */
2187 stream->is_video = is_video;
2188 stream->pending_tags = tags;
2189 stream->discont = TRUE;
2193 st = gst_caps_get_structure (caps, 0);
2194 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2195 par_x > 0 && par_y > 0) {
2196 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2197 stream->par_x = par_x;
2198 stream->par_y = par_y;
2202 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2204 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2205 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2207 ++demux->num_streams;
2209 stream->active = FALSE;
2213 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2214 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2216 GstTagList *tags = NULL;
2217 GstBuffer *extradata = NULL;
2220 guint16 size_left = 0;
2221 gchar *codec_name = NULL;
2224 size_left = audio->size;
2226 /* Create the audio pad */
2227 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2229 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2232 /* Swallow up any left over data and set up the
2233 * standard properties from the header info */
2235 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2236 "codec specific data", size_left);
2238 g_assert (size_left <= *p_size);
2239 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2242 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2243 * additional two bytes indicating extradata. */
2244 /* FIXME: Handle the channel reorder map here */
2245 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2246 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2249 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2250 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2253 /* Informing about that audio format we just added */
2255 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2256 g_free (codec_name);
2260 gst_buffer_unref (extradata);
2262 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2263 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2264 audio->codec_tag, tags);
2266 ++demux->num_audio_streams;
2268 gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, tags);
2272 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2273 asf_stream_video_format * video, guint16 id,
2274 guint8 ** p_data, guint64 * p_size)
2276 GstTagList *tags = NULL;
2277 GstBuffer *extradata = NULL;
2282 gchar *codec_name = NULL;
2283 gint size_left = video->size - 40;
2285 /* Create the video pad */
2286 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2287 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2290 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2292 GST_LOG ("Video header has %d bytes of codec specific data", size_left);
2293 g_assert (size_left <= *p_size);
2294 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2297 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2299 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2300 caps = gst_riff_create_video_caps (video->tag, NULL,
2301 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2304 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2305 G_TYPE_UINT, video->tag, NULL);
2310 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2311 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2312 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2313 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2318 /* retry with the global metadata */
2319 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2320 demux->global_metadata);
2321 s = demux->global_metadata;
2322 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2323 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2324 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2325 if (ax > 0 && ay > 0)
2326 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2330 s = gst_caps_get_structure (caps, 0);
2331 gst_structure_remove_field (s, "framerate");
2334 /* add fourcc format to caps, some proprietary decoders seem to need it */
2335 str = g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2336 gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
2340 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2341 g_free (codec_name);
2345 gst_buffer_unref (extradata);
2347 GST_INFO ("Adding video stream #%u, id %u, codec %"
2348 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2349 GST_FOURCC_ARGS (video->tag), video->tag);
2351 ++demux->num_video_streams;
2353 gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE, tags);
2357 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2359 if (!stream->active) {
2360 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2361 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2362 gst_pad_set_active (stream->pad, TRUE);
2363 gst_pad_set_caps (stream->pad, stream->caps);
2364 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2365 stream->active = TRUE;
2370 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2373 AsfCorrectionType correction_type;
2374 AsfStreamType stream_type;
2375 GstClockTime time_offset;
2376 gboolean is_encrypted G_GNUC_UNUSED;
2380 guint stream_specific_size;
2381 guint type_specific_size G_GNUC_UNUSED;
2382 guint unknown G_GNUC_UNUSED;
2384 /* Get the rest of the header's header */
2385 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2386 goto not_enough_data;
2388 gst_asf_demux_get_guid (&guid, &data, &size);
2389 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2391 gst_asf_demux_get_guid (&guid, &data, &size);
2392 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2394 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2396 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2397 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2399 flags = gst_asf_demux_get_uint16 (&data, &size);
2400 stream_id = flags & 0x7f;
2401 is_encrypted = ! !((flags & 0x8000) << 15);
2402 unknown = gst_asf_demux_get_uint32 (&data, &size);
2404 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2405 stream_id, GST_TIME_ARGS (time_offset));
2407 switch (stream_type) {
2408 case ASF_STREAM_AUDIO:{
2409 asf_stream_audio audio_object;
2411 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2412 goto not_enough_data;
2414 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2417 gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2420 switch (correction_type) {
2421 case ASF_CORRECTION_ON:{
2422 guint span, packet_size, chunk_size, data_size, silence_data;
2424 GST_INFO ("Using error correction");
2426 if (size < (1 + 2 + 2 + 2 + 1))
2427 goto not_enough_data;
2429 span = gst_asf_demux_get_uint8 (&data, &size);
2430 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2431 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2432 data_size = gst_asf_demux_get_uint16 (&data, &size);
2433 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2435 /* FIXME: shouldn't this be per-stream? */
2438 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2439 packet_size, chunk_size, data_size, span, silence_data);
2441 if (demux->span > 1) {
2442 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2443 /* Disable descrambling */
2446 /* FIXME: this else branch was added for
2447 * weird_al_yankovic - the saga begins.asf */
2448 demux->ds_packet_size = packet_size;
2449 demux->ds_chunk_size = chunk_size;
2452 /* Descambling is enabled */
2453 demux->ds_packet_size = packet_size;
2454 demux->ds_chunk_size = chunk_size;
2457 /* Now skip the rest of the silence data */
2459 gst_bytestream_flush (demux->bs, data_size - 1);
2461 /* FIXME: CHECKME. And why -1? */
2462 if (data_size > 1) {
2463 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2464 goto not_enough_data;
2470 case ASF_CORRECTION_OFF:{
2471 GST_INFO ("Error correction off");
2472 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2473 goto not_enough_data;
2477 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2478 ("Audio stream using unknown error correction"));
2485 case ASF_STREAM_VIDEO:{
2486 asf_stream_video_format video_format_object;
2487 asf_stream_video video_object;
2490 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2491 goto not_enough_data;
2493 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2495 GST_INFO ("object is a video stream with %u bytes of "
2496 "additional data", vsize);
2498 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2500 goto not_enough_data;
2503 gst_asf_demux_add_video_stream (demux, &video_format_object, stream_id,
2510 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2515 return gst_asf_demux_get_stream (demux, stream_id);
2519 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2520 /* we'll error out later if we found no streams */
2525 static const gchar *
2526 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2530 const gchar *asf_name;
2531 const gchar *gst_name;
2534 "WM/Genre", GST_TAG_GENRE}, {
2535 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2536 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2537 "WM/Picture", GST_TAG_IMAGE}, {
2538 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2539 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2540 "WM/Year", GST_TAG_DATE}
2541 /* { "WM/Composer", GST_TAG_COMPOSER } */
2546 if (name_utf8 == NULL) {
2547 GST_WARNING ("Failed to convert name to UTF8, skipping");
2551 out = strlen (name_utf8);
2553 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2554 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2555 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2556 return tags[i].gst_name;
2563 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2565 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2569 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2571 if (taglist == NULL)
2574 if (gst_tag_list_is_empty (taglist)) {
2575 gst_tag_list_free (taglist);
2579 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2581 gst_tag_list_free (demux->taglist);
2582 gst_tag_list_free (taglist);
2584 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2587 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2588 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2589 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2592 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2596 const guint8 *img_data = NULL;
2597 guint32 img_data_len = 0;
2598 guint8 pic_type = 0;
2600 gst_byte_reader_init (&r, tag_data, tag_data_len);
2602 /* skip mime type string (we don't trust it and do our own typefinding),
2603 * and also skip the description string, since we don't use it */
2604 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
2605 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
2606 !gst_byte_reader_skip_string_utf16 (&r) ||
2607 !gst_byte_reader_skip_string_utf16 (&r) ||
2608 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
2609 goto not_enough_data;
2613 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
2614 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
2620 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
2621 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
2626 /* Extended Content Description Object */
2627 static GstFlowReturn
2628 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
2631 /* Other known (and unused) 'text/unicode' metadata available :
2634 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
2635 * WMFSDKVersion = 9.00.00.2980
2636 * WMFSDKNeeded = 0.0.0.0000
2637 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
2638 * WM/Publisher = 4AD
2640 * WM/ProviderRating = 8
2641 * WM/ProviderStyle = Rock (similar to WM/Genre)
2642 * WM/GenreID (similar to WM/Genre)
2643 * WM/TrackNumber (same as WM/Track but as a string)
2645 * Other known (and unused) 'non-text' metadata available :
2651 * We might want to read WM/TrackNumber and use atoi() if we don't have
2655 GstTagList *taglist;
2656 guint16 blockcount, i;
2658 GST_INFO_OBJECT (demux, "object is an extended content description");
2660 taglist = gst_tag_list_new_empty ();
2662 /* Content Descriptor Count */
2664 goto not_enough_data;
2666 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2668 for (i = 1; i <= blockcount; ++i) {
2669 const gchar *gst_tag_name;
2673 GValue tag_value = { 0, };
2676 gchar *name_utf8 = NULL;
2680 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
2681 goto not_enough_data;
2685 goto not_enough_data;
2687 /* Descriptor Value Data Type */
2688 datatype = gst_asf_demux_get_uint16 (&data, &size);
2690 /* Descriptor Value (not really a string, but same thing reading-wise) */
2691 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
2693 goto not_enough_data;
2697 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
2699 if (name_utf8 != NULL) {
2700 GST_DEBUG ("Found tag/metadata %s", name_utf8);
2702 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
2703 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
2706 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
2709 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
2712 /* get rid of tags with empty value */
2713 if (value_utf8 != NULL && *value_utf8 != '\0') {
2714 GST_DEBUG ("string value %s", value_utf8);
2716 value_utf8[out] = '\0';
2718 if (gst_tag_name != NULL) {
2719 if (strcmp (gst_tag_name, GST_TAG_DATE) == 0) {
2720 guint year = atoi (value_utf8);
2723 /* FIXME: really want a GDateTime with just the year field */
2724 g_value_init (&tag_value, G_TYPE_DATE);
2725 g_value_take_boxed (&tag_value, g_date_new_dmy (1, 1, year));
2727 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
2728 guint id3v1_genre_id;
2729 const gchar *genre_str;
2731 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
2732 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
2733 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
2734 g_free (value_utf8);
2735 value_utf8 = g_strdup (genre_str);
2740 /* convert tag from string to other type if required */
2741 tag_type = gst_tag_get_type (gst_tag_name);
2742 g_value_init (&tag_value, tag_type);
2743 if (!gst_value_deserialize (&tag_value, value_utf8)) {
2744 GValue from_val = { 0, };
2746 g_value_init (&from_val, G_TYPE_STRING);
2747 g_value_set_string (&from_val, value_utf8);
2748 if (!g_value_transform (&from_val, &tag_value)) {
2749 GST_WARNING_OBJECT (demux,
2750 "Could not transform string tag to " "%s tag type %s",
2751 gst_tag_name, g_type_name (tag_type));
2752 g_value_unset (&tag_value);
2754 g_value_unset (&from_val);
2759 GST_DEBUG ("Setting metadata");
2760 g_value_init (&tag_value, G_TYPE_STRING);
2761 g_value_set_string (&tag_value, value_utf8);
2763 } else if (value_utf8 == NULL) {
2764 GST_WARNING ("Failed to convert string value to UTF8, skipping");
2766 GST_DEBUG ("Skipping empty string value for %s",
2767 GST_STR_NULL (gst_tag_name));
2769 g_free (value_utf8);
2772 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
2774 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
2775 GST_FIXME ("Unhandled byte array tag %s",
2776 GST_STR_NULL (gst_tag_name));
2779 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
2785 case ASF_DEMUX_DATA_TYPE_DWORD:{
2786 guint uint_val = GST_READ_UINT32_LE (value);
2788 /* this is the track number */
2789 g_value_init (&tag_value, G_TYPE_UINT);
2791 /* WM/Track counts from 0 */
2792 if (!strcmp (name_utf8, "WM/Track"))
2795 g_value_set_uint (&tag_value, uint_val);
2799 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
2804 if (G_IS_VALUE (&tag_value)) {
2806 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
2808 /* WM/TrackNumber is more reliable than WM/Track, since the latter
2809 * is supposed to have a 0 base but is often wrongly written to start
2810 * from 1 as well, so prefer WM/TrackNumber when we have it: either
2811 * replace the value added earlier from WM/Track or put it first in
2812 * the list, so that it will get picked up by _get_uint() */
2813 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
2814 merge_mode = GST_TAG_MERGE_REPLACE;
2816 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
2819 GST_DEBUG ("Setting global metadata %s", name_utf8);
2820 gst_structure_set_value (demux->global_metadata, name_utf8,
2824 g_value_unset (&tag_value);
2833 gst_asf_demux_add_global_tags (demux, taglist);
2840 GST_WARNING ("Unexpected end of data parsing ext content desc object");
2841 gst_tag_list_free (taglist);
2842 return GST_FLOW_OK; /* not really fatal */
2846 static GstStructure *
2847 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
2852 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
2854 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
2857 s = gst_caps_get_structure (demux->metadata, i);
2858 if (gst_structure_has_name (s, sname))
2862 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
2864 /* try lookup again; demux->metadata took ownership of the structure, so we
2865 * can't really make any assumptions about what happened to it, so we can't
2866 * just return it directly after appending it */
2867 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
2870 static GstFlowReturn
2871 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
2874 guint16 blockcount, i;
2876 GST_INFO_OBJECT (demux, "object is a metadata object");
2878 /* Content Descriptor Count */
2880 goto not_enough_data;
2882 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2884 for (i = 0; i < blockcount; ++i) {
2886 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
2887 guint32 data_len, ival;
2890 if (size < (2 + 2 + 2 + 2 + 4))
2891 goto not_enough_data;
2893 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
2894 stream_num = gst_asf_demux_get_uint16 (&data, &size);
2895 name_len = gst_asf_demux_get_uint16 (&data, &size);
2896 data_type = gst_asf_demux_get_uint16 (&data, &size);
2897 data_len = gst_asf_demux_get_uint32 (&data, &size);
2899 if (size < name_len + data_len)
2900 goto not_enough_data;
2902 /* convert name to UTF-8 */
2903 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
2905 gst_asf_demux_skip_bytes (name_len, &data, &size);
2907 if (name_utf8 == NULL) {
2908 GST_WARNING ("Failed to convert value name to UTF8, skipping");
2909 gst_asf_demux_skip_bytes (data_len, &data, &size);
2913 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
2914 gst_asf_demux_skip_bytes (data_len, &data, &size);
2922 goto not_enough_data;
2925 ival = gst_asf_demux_get_uint32 (&data, &size);
2927 /* skip anything else there may be, just in case */
2928 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
2930 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
2931 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
2935 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
2941 GST_WARNING ("Unexpected end of data parsing metadata object");
2942 return GST_FLOW_OK; /* not really fatal */
2946 static GstFlowReturn
2947 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
2949 GstFlowReturn ret = GST_FLOW_OK;
2950 guint32 i, num_objects;
2951 guint8 unknown G_GNUC_UNUSED;
2953 /* Get the rest of the header's header */
2954 if (size < (4 + 1 + 1))
2955 goto not_enough_data;
2957 num_objects = gst_asf_demux_get_uint32 (&data, &size);
2958 unknown = gst_asf_demux_get_uint8 (&data, &size);
2959 unknown = gst_asf_demux_get_uint8 (&data, &size);
2961 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
2963 /* Loop through the header's objects, processing those */
2964 for (i = 0; i < num_objects; ++i) {
2965 GST_INFO_OBJECT (demux, "reading header part %u", i);
2966 ret = gst_asf_demux_process_object (demux, &data, &size);
2967 if (ret != GST_FLOW_OK) {
2968 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
2977 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2978 ("short read parsing HEADER object"));
2979 return GST_FLOW_ERROR;
2983 static GstFlowReturn
2984 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
2986 guint64 creation_time G_GNUC_UNUSED;
2987 guint64 file_size G_GNUC_UNUSED;
2988 guint64 send_time G_GNUC_UNUSED;
2989 guint64 packets_count, play_time, preroll;
2990 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
2992 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
2993 goto not_enough_data;
2995 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
2996 file_size = gst_asf_demux_get_uint64 (&data, &size);
2997 creation_time = gst_asf_demux_get_uint64 (&data, &size);
2998 packets_count = gst_asf_demux_get_uint64 (&data, &size);
2999 play_time = gst_asf_demux_get_uint64 (&data, &size);
3000 send_time = gst_asf_demux_get_uint64 (&data, &size);
3001 preroll = gst_asf_demux_get_uint64 (&data, &size);
3002 flags = gst_asf_demux_get_uint32 (&data, &size);
3003 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3004 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3005 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3007 demux->broadcast = ! !(flags & 0x01);
3008 demux->seekable = ! !(flags & 0x02);
3010 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3011 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3012 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3014 if (demux->broadcast) {
3015 /* these fields are invalid if the broadcast flag is set */
3020 if (min_pktsize != max_pktsize)
3021 goto non_fixed_packet_size;
3023 demux->packet_size = max_pktsize;
3025 /* FIXME: do we need send_time as well? what is it? */
3026 if ((play_time * 100) >= (preroll * GST_MSECOND))
3027 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3029 demux->play_time = 0;
3031 demux->preroll = preroll * GST_MSECOND;
3033 /* initial latency */
3034 demux->latency = demux->preroll;
3036 if (demux->play_time == 0)
3037 demux->seekable = FALSE;
3039 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3040 GST_TIME_ARGS (demux->play_time));
3041 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3042 GST_TIME_ARGS (demux->preroll));
3044 if (demux->play_time > 0) {
3045 demux->segment.duration = demux->play_time;
3048 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3050 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3055 non_fixed_packet_size:
3057 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3058 ("packet size must be fixed"));
3059 return GST_FLOW_ERROR;
3063 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3064 ("short read parsing FILE object"));
3065 return GST_FLOW_ERROR;
3069 /* Content Description Object */
3070 static GstFlowReturn
3071 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3075 const gchar *gst_tag;
3080 GST_TAG_TITLE, 0, NULL}, {
3081 GST_TAG_ARTIST, 0, NULL}, {
3082 GST_TAG_COPYRIGHT, 0, NULL}, {
3083 GST_TAG_DESCRIPTION, 0, NULL}, {
3084 GST_TAG_COMMENT, 0, NULL}
3086 GstTagList *taglist;
3087 GValue value = { 0 };
3091 GST_INFO_OBJECT (demux, "object is a comment");
3093 if (size < (2 + 2 + 2 + 2 + 2))
3094 goto not_enough_data;
3096 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3097 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3098 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3099 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3100 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3102 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3103 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3104 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3106 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3107 if (size < tags[i].val_length)
3108 goto not_enough_data;
3110 /* might be just '/0', '/0'... */
3111 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3112 /* convert to UTF-8 */
3113 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3114 "UTF-8", "UTF-16LE", &in, &out, NULL);
3116 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3119 /* parse metadata into taglist */
3120 taglist = gst_tag_list_new_empty ();
3121 g_value_init (&value, G_TYPE_STRING);
3122 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3123 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3124 g_value_set_string (&value, tags[i].val_utf8);
3125 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3126 tags[i].gst_tag, &value, NULL);
3129 g_value_unset (&value);
3131 gst_asf_demux_add_global_tags (demux, taglist);
3133 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3134 g_free (tags[i].val_utf8);
3140 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3141 "comment tag section %d, skipping comment object", i);
3142 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3143 g_free (tags[i].val_utf8);
3144 return GST_FLOW_OK; /* not really fatal */
3148 static GstFlowReturn
3149 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3152 guint16 num_streams, i;
3156 goto not_enough_data;
3158 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3160 GST_INFO ("object is a bitrate properties object with %u streams",
3163 if (size < (num_streams * (2 + 4)))
3164 goto not_enough_data;
3166 for (i = 0; i < num_streams; ++i) {
3170 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3171 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3173 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3174 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3175 stream = gst_asf_demux_get_stream (demux, stream_id);
3177 if (stream->pending_tags == NULL) {
3178 stream->pending_tags =
3179 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3182 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3185 GST_WARNING ("stream id %u is too large", stream_id);
3193 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3194 return GST_FLOW_OK; /* not really fatal */
3198 static GstFlowReturn
3199 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3202 GstFlowReturn ret = GST_FLOW_OK;
3205 /* Get the rest of the header's header */
3206 if (size < (16 + 2 + 4))
3207 goto not_enough_data;
3209 /* skip GUID and two other bytes */
3210 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3211 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3213 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3215 /* FIXME: does data_size include the rest of the header that we have read? */
3216 if (hdr_size > size)
3217 goto not_enough_data;
3219 while (hdr_size > 0) {
3220 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3221 if (ret != GST_FLOW_OK)
3229 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3230 ("short read parsing extended header object"));
3231 return GST_FLOW_ERROR;
3235 static GstFlowReturn
3236 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3242 goto not_enough_data;
3244 if (demux->languages) {
3245 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3246 g_strfreev (demux->languages);
3247 demux->languages = NULL;
3248 demux->num_languages = 0;
3251 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3252 GST_LOG ("%u languages:", demux->num_languages);
3254 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3255 for (i = 0; i < demux->num_languages; ++i) {
3256 guint8 len, *lang_data = NULL;
3259 goto not_enough_data;
3260 len = gst_asf_demux_get_uint8 (&data, &size);
3261 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3264 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3267 /* truncate "en-us" etc. to just "en" */
3268 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3271 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3272 demux->languages[i] = utf8;
3275 goto not_enough_data;
3283 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3284 g_free (demux->languages);
3285 demux->languages = NULL;
3286 return GST_FLOW_OK; /* not fatal */
3290 static GstFlowReturn
3291 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3294 GstClockTime interval;
3297 if (size < (16 + 8 + 4 + 4))
3298 goto not_enough_data;
3301 gst_asf_demux_skip_bytes (16, &data, &size);
3302 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3303 gst_asf_demux_skip_bytes (4, &data, &size);
3304 count = gst_asf_demux_get_uint32 (&data, &size);
3306 demux->sidx_interval = interval;
3307 demux->sidx_num_entries = count;
3308 g_free (demux->sidx_entries);
3309 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3311 for (i = 0; i < count; ++i) {
3312 if (G_UNLIKELY (size <= 6))
3314 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3315 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3316 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3317 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3318 demux->sidx_entries[i].count);
3321 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3328 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3329 return GST_FLOW_OK; /* not fatal */
3333 static GstFlowReturn
3334 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3335 guint8 * data, guint64 size)
3341 if (size < 16 + 2 + (2 * 2))
3342 goto not_enough_data;
3344 gst_asf_demux_get_guid (&guid, &data, &size);
3345 num = gst_asf_demux_get_uint16 (&data, &size);
3348 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3352 if (size < (num * sizeof (guint16)))
3353 goto not_enough_data;
3355 /* read mutually exclusive stream numbers */
3356 mes = g_new (guint8, num + 1);
3357 for (i = 0; i < num; ++i) {
3358 mes[i] = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3359 GST_LOG_OBJECT (demux, "mutually exclusive: stream #%d", mes[i]);
3362 /* add terminator so we can easily get the count or know when to stop */
3363 mes[i] = (guint8) - 1;
3365 demux->mut_ex_streams = g_slist_append (demux->mut_ex_streams, mes);
3372 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3373 return GST_FLOW_OK; /* not absolutely fatal */
3377 static GstFlowReturn
3378 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3381 AsfStreamExtProps esp;
3382 AsfStream *stream = NULL;
3383 AsfObject stream_obj;
3384 guint16 stream_name_count;
3385 guint16 num_payload_ext;
3387 guint8 *stream_obj_data = NULL;
3390 guint i, stream_num;
3393 obj_size = (guint) size;
3396 goto not_enough_data;
3399 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3400 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3401 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3402 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3403 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3404 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3405 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3406 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3407 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3408 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3409 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3410 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3411 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3412 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3413 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3415 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3416 GST_TIME_ARGS (esp.start_time));
3417 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3418 GST_TIME_ARGS (esp.end_time));
3419 GST_INFO ("flags = %08x", esp.flags);
3420 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3421 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3422 GST_INFO ("stream number = %u", stream_num);
3423 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3424 (esp.lang_idx < demux->num_languages) ?
3425 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3426 GST_INFO ("stream name count = %u", stream_name_count);
3428 /* read stream names */
3429 for (i = 0; i < stream_name_count; ++i) {
3430 guint16 stream_lang_idx G_GNUC_UNUSED;
3431 gchar *stream_name = NULL;
3434 goto not_enough_data;
3435 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3436 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3437 goto not_enough_data;
3438 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3439 g_free (stream_name); /* TODO: store names in struct */
3442 /* read payload extension systems stuff */
3443 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3445 if (num_payload_ext > 0)
3446 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3448 esp.payload_extensions = NULL;
3450 for (i = 0; i < num_payload_ext; ++i) {
3451 AsfPayloadExtension ext;
3453 guint32 sys_info_len;
3455 if (size < 16 + 2 + 4)
3456 goto not_enough_data;
3458 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3459 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3460 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3462 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3463 GST_LOG ("payload systems info len = %u", sys_info_len);
3464 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3465 goto not_enough_data;
3467 esp.payload_extensions[i] = ext;
3470 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3472 /* there might be an optional STREAM_INFO object here now; if not, we
3473 * should have parsed the corresponding stream info object already (since
3474 * we are parsing the extended stream properties objects delayed) */
3476 stream = gst_asf_demux_get_stream (demux, stream_num);
3480 /* get size of the stream object */
3481 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3482 goto not_enough_data;
3484 if (stream_obj.id != ASF_OBJ_STREAM)
3485 goto expected_stream_object;
3487 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3488 stream_obj.size > (10 * 1024 * 1024))
3489 goto not_enough_data;
3491 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3493 /* process this stream object later after all the other 'normal' ones
3494 * have been processed (since the others are more important/non-hidden) */
3495 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3496 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3497 goto not_enough_data;
3499 /* parse stream object */
3500 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3501 g_free (stream_obj_data);
3506 stream->ext_props = esp;
3508 /* try to set the framerate */
3509 if (stream->is_video && stream->caps) {
3510 GValue framerate = { 0 };
3514 g_value_init (&framerate, GST_TYPE_FRACTION);
3516 num = GST_SECOND / 100;
3517 denom = esp.avg_time_per_frame;
3519 /* avoid division by 0, assume 25/1 framerate */
3520 denom = GST_SECOND / 2500;
3523 gst_value_set_fraction (&framerate, num, denom);
3525 stream->caps = gst_caps_make_writable (stream->caps);
3526 s = gst_caps_get_structure (stream->caps, 0);
3527 gst_structure_set_value (s, "framerate", &framerate);
3528 g_value_unset (&framerate);
3529 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3530 num, denom, ((gdouble) num) / denom);
3533 /* add language info now if we have it */
3534 if (stream->ext_props.lang_idx < demux->num_languages) {
3535 if (stream->pending_tags == NULL)
3536 stream->pending_tags = gst_tag_list_new_empty ();
3537 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3538 demux->languages[stream->ext_props.lang_idx]);
3539 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3540 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
3544 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
3552 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
3553 return GST_FLOW_OK; /* not absolutely fatal */
3555 expected_stream_object:
3557 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
3558 "object: expected embedded stream object, but got %s object instead!",
3559 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
3560 return GST_FLOW_OK; /* not absolutely fatal */
3564 static const gchar *
3565 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
3569 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
3570 if (g_str_has_prefix (nick, "ASF_OBJ_"))
3571 nick += strlen ("ASF_OBJ_");
3573 if (demux->objpath == NULL) {
3574 demux->objpath = g_strdup (nick);
3578 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
3579 g_free (demux->objpath);
3580 demux->objpath = newpath;
3583 return (const gchar *) demux->objpath;
3587 gst_asf_demux_pop_obj (GstASFDemux * demux)
3591 if ((s = g_strrstr (demux->objpath, "/"))) {
3594 g_free (demux->objpath);
3595 demux->objpath = NULL;
3600 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
3605 /* Parse the queued extended stream property objects and add the info
3606 * to the existing streams or add the new embedded streams, but without
3607 * activating them yet */
3608 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
3609 g_slist_length (demux->ext_stream_props));
3611 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
3612 GstBuffer *buf = GST_BUFFER (l->data);
3615 gst_buffer_map (buf, &map, GST_MAP_READ);
3617 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
3618 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
3619 gst_buffer_unmap (buf, &map);
3620 gst_buffer_unref (buf);
3622 g_slist_free (demux->ext_stream_props);
3623 demux->ext_stream_props = NULL;
3628 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
3632 for (i = 0; i < demux->num_streams; ++i) {
3637 stream = &demux->stream[i];
3639 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
3641 if (stream->active) {
3642 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
3647 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
3650 /* check for each mutual exclusion whether it affects this stream */
3651 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3652 if (*mes == stream->id) {
3653 /* if yes, check if we've already added streams that are mutually
3654 * exclusive with the stream we're about to add */
3655 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3656 for (j = 0; j < demux->num_streams; ++j) {
3657 /* if the broadcast flag is set, assume the hidden streams aren't
3658 * actually streamed and hide them (or playbin won't work right),
3659 * otherwise assume their data is available */
3660 if (demux->stream[j].id == *mes && demux->broadcast) {
3662 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
3663 "mutually exclusive with already existing stream ID %d, "
3664 "hiding stream", stream->id, demux->stream[j].id);
3676 /* FIXME: we should do stream activation based on preroll data in
3677 * streaming mode too */
3678 if (demux->streaming && !is_hidden)
3679 gst_asf_demux_activate_stream (demux, stream);
3684 static GstFlowReturn
3685 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
3688 GstFlowReturn ret = GST_FLOW_OK;
3690 guint64 obj_data_size;
3692 if (*p_size < ASF_OBJECT_HEADER_SIZE)
3693 return ASF_FLOW_NEED_MORE_DATA;
3695 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
3696 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
3698 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
3700 if (*p_size < obj_data_size)
3701 return ASF_FLOW_NEED_MORE_DATA;
3703 gst_asf_demux_push_obj (demux, obj.id);
3705 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
3708 case ASF_OBJ_STREAM:
3709 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
3713 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
3715 case ASF_OBJ_HEADER:
3716 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
3718 case ASF_OBJ_COMMENT:
3719 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
3722 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
3724 case ASF_OBJ_BITRATE_PROPS:
3726 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
3729 case ASF_OBJ_EXT_CONTENT_DESC:
3731 gst_asf_demux_process_ext_content_desc (demux, *p_data,
3734 case ASF_OBJ_METADATA_OBJECT:
3735 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
3737 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
3740 /* process these later, we might not have parsed the corresponding
3741 * stream object yet */
3742 GST_LOG ("%s: queued for later parsing", demux->objpath);
3743 buf = gst_buffer_new_and_alloc (obj_data_size);
3744 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
3745 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
3749 case ASF_OBJ_LANGUAGE_LIST:
3750 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
3752 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
3753 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
3756 case ASF_OBJ_SIMPLE_INDEX:
3757 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
3759 case ASF_OBJ_CONTENT_ENCRYPTION:
3760 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
3761 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
3762 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
3763 goto error_encrypted;
3764 case ASF_OBJ_CONCEAL_NONE:
3766 case ASF_OBJ_UNDEFINED:
3767 case ASF_OBJ_CODEC_COMMENT:
3769 case ASF_OBJ_PADDING:
3770 case ASF_OBJ_BITRATE_MUTEX:
3771 case ASF_OBJ_COMPATIBILITY:
3772 case ASF_OBJ_INDEX_PLACEHOLDER:
3773 case ASF_OBJ_INDEX_PARAMETERS:
3774 case ASF_OBJ_STREAM_PRIORITIZATION:
3775 case ASF_OBJ_SCRIPT_COMMAND:
3777 /* Unknown/unhandled object, skip it and hope for the best */
3778 GST_INFO ("%s: skipping object", demux->objpath);
3783 /* this can't fail, we checked the number of bytes available before */
3784 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
3786 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
3788 gst_asf_demux_pop_obj (demux);
3795 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
3796 return GST_FLOW_ERROR;
3801 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
3802 GstBuffer ** p_buffer)
3804 GstBuffer *descrambled_buffer;
3805 GstBuffer *scrambled_buffer;
3806 GstBuffer *sub_buffer;
3813 /* descrambled_buffer is initialised in the first iteration */
3814 descrambled_buffer = NULL;
3815 scrambled_buffer = *p_buffer;
3817 if (gst_buffer_get_size (scrambled_buffer) <
3818 demux->ds_packet_size * demux->span)
3821 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
3822 offset += demux->ds_chunk_size) {
3823 off = offset / demux->ds_chunk_size;
3824 row = off / demux->span;
3825 col = off % demux->span;
3826 idx = row + col * demux->ds_packet_size / demux->ds_chunk_size;
3827 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
3828 col, off, demux->ds_chunk_size);
3829 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
3830 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
3831 demux->span, demux->ds_packet_size);
3832 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
3833 gst_buffer_get_size (scrambled_buffer));
3835 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_NONE,
3836 idx * demux->ds_chunk_size, demux->ds_chunk_size);
3838 descrambled_buffer = sub_buffer;
3840 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
3844 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
3845 GST_BUFFER_TIMESTAMP (scrambled_buffer);
3846 GST_BUFFER_DURATION (descrambled_buffer) =
3847 GST_BUFFER_DURATION (scrambled_buffer);
3848 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
3849 GST_BUFFER_OFFSET_END (descrambled_buffer) =
3850 GST_BUFFER_OFFSET_END (scrambled_buffer);
3852 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
3854 gst_buffer_unref (scrambled_buffer);
3855 *p_buffer = descrambled_buffer;
3859 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
3861 GstASFDemux *demux = GST_ASF_DEMUX (element);
3864 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
3866 for (i = 0; i < demux->num_streams; ++i) {
3867 gst_event_ref (event);
3868 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
3869 GST_OBJECT_CAST (element), event)) {
3870 gst_event_unref (event);
3875 gst_event_unref (event);
3879 /* takes ownership of the passed event */
3881 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
3883 gboolean ret = TRUE;
3886 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
3887 GST_EVENT_TYPE_NAME (event));
3889 for (i = 0; i < demux->num_streams; ++i) {
3890 gst_event_ref (event);
3891 ret &= gst_pad_push_event (demux->stream[i].pad, event);
3893 gst_event_unref (event);
3898 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
3902 gboolean res = FALSE;
3904 demux = GST_ASF_DEMUX (parent);
3906 GST_DEBUG ("handling %s query",
3907 gst_query_type_get_name (GST_QUERY_TYPE (query)));
3909 switch (GST_QUERY_TYPE (query)) {
3910 case GST_QUERY_DURATION:
3914 gst_query_parse_duration (query, &format, NULL);
3916 if (format != GST_FORMAT_TIME) {
3917 GST_LOG ("only support duration queries in TIME format");
3921 GST_OBJECT_LOCK (demux);
3923 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
3924 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
3925 GST_TIME_ARGS (demux->segment.duration));
3927 gst_query_set_duration (query, GST_FORMAT_TIME,
3928 demux->segment.duration);
3932 GST_LOG ("duration not known yet");
3935 GST_OBJECT_UNLOCK (demux);
3939 case GST_QUERY_POSITION:{
3942 gst_query_parse_position (query, &format, NULL);
3944 if (format != GST_FORMAT_TIME) {
3945 GST_LOG ("only support position queries in TIME format");
3949 GST_OBJECT_LOCK (demux);
3951 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
3952 GST_LOG ("returning position: %" GST_TIME_FORMAT,
3953 GST_TIME_ARGS (demux->segment.position));
3955 gst_query_set_position (query, GST_FORMAT_TIME,
3956 demux->segment.position);
3960 GST_LOG ("position not known yet");
3963 GST_OBJECT_UNLOCK (demux);
3967 case GST_QUERY_SEEKING:{
3970 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
3971 if (format == GST_FORMAT_TIME) {
3974 GST_OBJECT_LOCK (demux);
3975 duration = demux->segment.duration;
3976 GST_OBJECT_UNLOCK (demux);
3978 if (!demux->streaming || !demux->seekable) {
3979 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
3986 /* try downstream first in TIME */
3987 res = gst_pad_query_default (pad, parent, query);
3989 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
3990 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
3991 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
3992 /* if no luck, maybe in BYTES */
3993 if (!seekable || fmt != GST_FORMAT_TIME) {
3996 q = gst_query_new_seeking (GST_FORMAT_BYTES);
3997 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
3998 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
3999 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4000 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4001 if (fmt != GST_FORMAT_BYTES)
4004 gst_query_unref (q);
4005 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4011 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4015 case GST_QUERY_LATENCY:
4018 GstClockTime min, max;
4020 /* preroll delay does not matter in non-live pipeline,
4021 * but we might end up in a live (rtsp) one ... */
4024 res = gst_pad_query_default (pad, parent, query);
4028 gst_query_parse_latency (query, &live, &min, &max);
4030 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4031 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4032 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4034 GST_OBJECT_LOCK (demux);
4036 min += demux->latency;
4038 max += demux->latency;
4039 GST_OBJECT_UNLOCK (demux);
4041 gst_query_set_latency (query, live, min, max);
4045 res = gst_pad_query_default (pad, parent, query);
4052 static GstStateChangeReturn
4053 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4055 GstASFDemux *demux = GST_ASF_DEMUX (element);
4056 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4058 switch (transition) {
4059 case GST_STATE_CHANGE_NULL_TO_READY:{
4060 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4061 demux->need_newsegment = TRUE;
4062 demux->segment_running = FALSE;
4063 demux->accurate = FALSE;
4064 demux->adapter = gst_adapter_new ();
4065 demux->metadata = gst_caps_new_empty ();
4066 demux->global_metadata = gst_structure_new_empty ("metadata");
4067 demux->data_size = 0;
4068 demux->data_offset = 0;
4069 demux->index_offset = 0;
4070 demux->base_offset = 0;
4077 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4078 if (ret == GST_STATE_CHANGE_FAILURE)
4081 switch (transition) {
4082 case GST_STATE_CHANGE_PAUSED_TO_READY:
4083 case GST_STATE_CHANGE_READY_TO_NULL:
4084 gst_asf_demux_reset (demux, FALSE);