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 gst_asf_demux_send_event_unlocked (demux,
1734 gst_event_new_segment_done (GST_FORMAT_TIME, stop));
1735 } else if (flow != GST_FLOW_EOS) {
1736 /* check if we have a chained asf, in case, we don't eos yet */
1737 if (gst_asf_demux_check_chained_asf (demux)) {
1738 GST_INFO_OBJECT (demux, "Chained ASF starting");
1739 gst_asf_demux_reset (demux, TRUE);
1743 /* normal playback, send EOS to all linked pads */
1744 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
1745 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1747 /* ... and fall through to pause */
1751 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
1752 gst_flow_get_name (flow));
1753 demux->segment_running = FALSE;
1754 gst_pad_pause_task (demux->sinkpad);
1756 /* For the error cases (not EOS) */
1758 if (flow == GST_FLOW_EOS)
1759 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1760 else if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
1761 /* Post an error. Hopefully something else already has, but if not... */
1762 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1763 (_("Internal data stream error.")),
1764 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
1773 GST_DEBUG_OBJECT (demux, "Read failed, doh");
1774 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1775 flow = GST_FLOW_EOS;
1779 /* See FIXMEs above */
1782 gst_buffer_unref (buf);
1783 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1784 ("Error parsing ASF packet %u", (guint) demux->packet));
1785 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1786 flow = GST_FLOW_ERROR;
1792 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
1793 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
1794 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
1797 gst_asf_demux_check_header (GstASFDemux * demux)
1800 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
1801 ASF_OBJECT_HEADER_SIZE);
1802 if (cdata == NULL) /* need more data */
1803 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
1805 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE);
1806 if (obj.id != ASF_OBJ_HEADER) {
1807 return GST_ASF_DEMUX_CHECK_HEADER_NO;
1809 return GST_ASF_DEMUX_CHECK_HEADER_YES;
1813 static GstFlowReturn
1814 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
1816 GstFlowReturn ret = GST_FLOW_OK;
1819 demux = GST_ASF_DEMUX (parent);
1821 GST_LOG_OBJECT (demux,
1822 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
1823 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
1824 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
1826 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
1827 GST_DEBUG_OBJECT (demux, "received DISCONT");
1828 gst_asf_demux_mark_discont (demux);
1831 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
1832 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
1833 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
1834 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
1835 ", interpolation gap: %" GST_TIME_FORMAT,
1836 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
1839 gst_adapter_push (demux->adapter, buf);
1841 switch (demux->state) {
1842 case GST_ASF_DEMUX_STATE_INDEX:{
1843 gint result = gst_asf_demux_check_header (demux);
1844 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
1847 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
1848 /* we don't care about this, probably an index */
1849 /* TODO maybe would be smarter to skip all the indices
1850 * until we got a new header or EOS to decide */
1851 GST_LOG_OBJECT (demux, "Received index object, its EOS");
1854 GST_INFO_OBJECT (demux, "Chained asf starting");
1855 /* cleanup and get ready for a chained asf */
1856 gst_asf_demux_reset (demux, TRUE);
1860 case GST_ASF_DEMUX_STATE_HEADER:{
1861 ret = gst_asf_demux_chain_headers (demux);
1862 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
1864 /* otherwise fall through */
1866 case GST_ASF_DEMUX_STATE_DATA:
1870 data_size = demux->packet_size;
1872 while (gst_adapter_available (demux->adapter) >= data_size) {
1874 GstAsfDemuxParsePacketError err;
1876 /* we don't know the length of the stream
1877 * check for a chained asf everytime */
1878 if (demux->num_packets == 0) {
1879 gint result = gst_asf_demux_check_header (demux);
1881 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
1882 GST_INFO_OBJECT (demux, "Chained asf starting");
1883 /* cleanup and get ready for a chained asf */
1884 gst_asf_demux_reset (demux, TRUE);
1887 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
1888 && demux->packet >= demux->num_packets)) {
1889 /* do not overshoot data section when streaming */
1893 buf = gst_adapter_take_buffer (demux->adapter, data_size);
1895 /* FIXME: We should tally up fatal errors and error out only
1896 * after a few broken packets in a row? */
1897 err = gst_asf_demux_parse_packet (demux, buf);
1899 gst_buffer_unref (buf);
1901 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
1902 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
1904 GST_WARNING_OBJECT (demux, "Parse error");
1906 if (demux->packet >= 0)
1909 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
1910 && demux->packet >= demux->num_packets)) {
1911 demux->state = GST_ASF_DEMUX_STATE_INDEX;
1916 g_assert_not_reached ();
1920 if (ret != GST_FLOW_OK)
1921 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
1927 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
1933 static inline gboolean
1934 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
1936 if (*p_size < num_bytes)
1939 *p_data += num_bytes;
1940 *p_size -= num_bytes;
1944 static inline guint8
1945 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
1949 g_assert (*p_size >= 1);
1950 ret = GST_READ_UINT8 (*p_data);
1951 *p_data += sizeof (guint8);
1952 *p_size -= sizeof (guint8);
1956 static inline guint16
1957 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
1961 g_assert (*p_size >= 2);
1962 ret = GST_READ_UINT16_LE (*p_data);
1963 *p_data += sizeof (guint16);
1964 *p_size -= sizeof (guint16);
1968 static inline guint32
1969 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
1973 g_assert (*p_size >= 4);
1974 ret = GST_READ_UINT32_LE (*p_data);
1975 *p_data += sizeof (guint32);
1976 *p_size -= sizeof (guint32);
1980 static inline guint64
1981 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
1985 g_assert (*p_size >= 8);
1986 ret = GST_READ_UINT64_LE (*p_data);
1987 *p_data += sizeof (guint64);
1988 *p_size -= sizeof (guint64);
1992 static inline guint32
1993 gst_asf_demux_get_var_length (guint8 type, guint8 ** p_data, guint64 * p_size)
2000 g_assert (*p_size >= 1);
2001 return gst_asf_demux_get_uint8 (p_data, p_size);
2004 g_assert (*p_size >= 2);
2005 return gst_asf_demux_get_uint16 (p_data, p_size);
2008 g_assert (*p_size >= 4);
2009 return gst_asf_demux_get_uint32 (p_data, p_size);
2012 g_assert_not_reached ();
2019 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2020 guint8 ** p_data, guint64 * p_size)
2024 if (*p_size < num_bytes_to_read)
2027 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2028 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2030 *p_data += num_bytes_to_read;
2031 *p_size -= num_bytes_to_read;
2037 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2038 guint8 ** p_data, guint64 * p_size)
2042 if (*p_size < num_bytes_to_read)
2045 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2046 *p_data += num_bytes_to_read;
2047 *p_size -= num_bytes_to_read;
2052 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2053 guint8 ** p_data, guint64 * p_size)
2063 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2066 *p_strlen = s_length;
2068 if (s_length == 0) {
2069 GST_WARNING ("zero-length string");
2070 *p_str = g_strdup ("");
2074 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2077 g_assert (s != NULL);
2079 /* just because They don't exist doesn't
2080 * mean They are not out to get you ... */
2081 if (s[s_length - 1] != '\0') {
2082 s = g_realloc (s, s_length + 1);
2086 *p_str = (gchar *) s;
2092 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2094 g_assert (*p_size >= 4 * sizeof (guint32));
2096 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2097 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2098 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2099 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2103 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2106 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2109 /* WAVEFORMATEX Structure */
2110 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2111 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2112 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2113 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2114 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2115 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2116 /* Codec specific data size */
2117 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2122 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2125 if (*p_size < (4 + 4 + 1 + 2))
2128 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2129 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2130 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2131 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2136 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2137 guint8 ** p_data, guint64 * p_size)
2139 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2142 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2143 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2144 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2145 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2146 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2147 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2148 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2149 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2150 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2151 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2152 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2157 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2161 for (i = 0; i < demux->num_streams; i++) {
2162 if (demux->stream[i].id == id)
2163 return &demux->stream[i];
2166 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2171 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2172 GstCaps * caps, guint16 id, gboolean is_video, GstTagList * tags)
2176 gst_pad_use_fixed_caps (src_pad);
2177 gst_pad_set_caps (src_pad, caps);
2179 gst_pad_set_event_function (src_pad,
2180 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2181 gst_pad_set_query_function (src_pad,
2182 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2184 stream = &demux->stream[demux->num_streams];
2185 stream->caps = caps;
2186 stream->pad = src_pad;
2188 stream->fps_known = !is_video; /* bit hacky for audio */
2189 stream->is_video = is_video;
2190 stream->pending_tags = tags;
2191 stream->discont = TRUE;
2195 st = gst_caps_get_structure (caps, 0);
2196 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2197 par_x > 0 && par_y > 0) {
2198 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2199 stream->par_x = par_x;
2200 stream->par_y = par_y;
2204 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2206 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2207 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2209 ++demux->num_streams;
2211 stream->active = FALSE;
2215 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2216 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2218 GstTagList *tags = NULL;
2219 GstBuffer *extradata = NULL;
2222 guint16 size_left = 0;
2223 gchar *codec_name = NULL;
2226 size_left = audio->size;
2228 /* Create the audio pad */
2229 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2231 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2234 /* Swallow up any left over data and set up the
2235 * standard properties from the header info */
2237 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2238 "codec specific data", size_left);
2240 g_assert (size_left <= *p_size);
2241 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2244 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2245 * additional two bytes indicating extradata. */
2246 /* FIXME: Handle the channel reorder map here */
2247 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2248 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2251 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2252 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2255 /* Informing about that audio format we just added */
2257 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2258 g_free (codec_name);
2262 gst_buffer_unref (extradata);
2264 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2265 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2266 audio->codec_tag, tags);
2268 ++demux->num_audio_streams;
2270 gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, tags);
2274 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2275 asf_stream_video_format * video, guint16 id,
2276 guint8 ** p_data, guint64 * p_size)
2278 GstTagList *tags = NULL;
2279 GstBuffer *extradata = NULL;
2284 gchar *codec_name = NULL;
2285 gint size_left = video->size - 40;
2287 /* Create the video pad */
2288 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2289 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2292 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2294 GST_LOG ("Video header has %d bytes of codec specific data", size_left);
2295 g_assert (size_left <= *p_size);
2296 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2299 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2301 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2302 caps = gst_riff_create_video_caps (video->tag, NULL,
2303 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2306 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2307 G_TYPE_UINT, video->tag, NULL);
2312 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2313 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2314 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2315 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2320 /* retry with the global metadata */
2321 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2322 demux->global_metadata);
2323 s = demux->global_metadata;
2324 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2325 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2326 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2327 if (ax > 0 && ay > 0)
2328 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2332 s = gst_caps_get_structure (caps, 0);
2333 gst_structure_remove_field (s, "framerate");
2336 /* add fourcc format to caps, some proprietary decoders seem to need it */
2337 str = g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2338 gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
2342 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2343 g_free (codec_name);
2347 gst_buffer_unref (extradata);
2349 GST_INFO ("Adding video stream #%u, id %u, codec %"
2350 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2351 GST_FOURCC_ARGS (video->tag), video->tag);
2353 ++demux->num_video_streams;
2355 gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE, tags);
2359 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2361 if (!stream->active) {
2362 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2363 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2364 gst_pad_set_active (stream->pad, TRUE);
2365 gst_pad_set_caps (stream->pad, stream->caps);
2366 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2367 stream->active = TRUE;
2372 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2375 AsfCorrectionType correction_type;
2376 AsfStreamType stream_type;
2377 GstClockTime time_offset;
2378 gboolean is_encrypted G_GNUC_UNUSED;
2382 guint stream_specific_size;
2383 guint type_specific_size G_GNUC_UNUSED;
2384 guint unknown G_GNUC_UNUSED;
2386 /* Get the rest of the header's header */
2387 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2388 goto not_enough_data;
2390 gst_asf_demux_get_guid (&guid, &data, &size);
2391 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2393 gst_asf_demux_get_guid (&guid, &data, &size);
2394 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2396 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2398 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2399 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2401 flags = gst_asf_demux_get_uint16 (&data, &size);
2402 stream_id = flags & 0x7f;
2403 is_encrypted = ! !((flags & 0x8000) << 15);
2404 unknown = gst_asf_demux_get_uint32 (&data, &size);
2406 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2407 stream_id, GST_TIME_ARGS (time_offset));
2409 switch (stream_type) {
2410 case ASF_STREAM_AUDIO:{
2411 asf_stream_audio audio_object;
2413 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2414 goto not_enough_data;
2416 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2419 gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2422 switch (correction_type) {
2423 case ASF_CORRECTION_ON:{
2424 guint span, packet_size, chunk_size, data_size, silence_data;
2426 GST_INFO ("Using error correction");
2428 if (size < (1 + 2 + 2 + 2 + 1))
2429 goto not_enough_data;
2431 span = gst_asf_demux_get_uint8 (&data, &size);
2432 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2433 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2434 data_size = gst_asf_demux_get_uint16 (&data, &size);
2435 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2437 /* FIXME: shouldn't this be per-stream? */
2440 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2441 packet_size, chunk_size, data_size, span, silence_data);
2443 if (demux->span > 1) {
2444 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2445 /* Disable descrambling */
2448 /* FIXME: this else branch was added for
2449 * weird_al_yankovic - the saga begins.asf */
2450 demux->ds_packet_size = packet_size;
2451 demux->ds_chunk_size = chunk_size;
2454 /* Descambling is enabled */
2455 demux->ds_packet_size = packet_size;
2456 demux->ds_chunk_size = chunk_size;
2459 /* Now skip the rest of the silence data */
2461 gst_bytestream_flush (demux->bs, data_size - 1);
2463 /* FIXME: CHECKME. And why -1? */
2464 if (data_size > 1) {
2465 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2466 goto not_enough_data;
2472 case ASF_CORRECTION_OFF:{
2473 GST_INFO ("Error correction off");
2474 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2475 goto not_enough_data;
2479 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2480 ("Audio stream using unknown error correction"));
2487 case ASF_STREAM_VIDEO:{
2488 asf_stream_video_format video_format_object;
2489 asf_stream_video video_object;
2492 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2493 goto not_enough_data;
2495 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2497 GST_INFO ("object is a video stream with %u bytes of "
2498 "additional data", vsize);
2500 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2502 goto not_enough_data;
2505 gst_asf_demux_add_video_stream (demux, &video_format_object, stream_id,
2512 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2517 return gst_asf_demux_get_stream (demux, stream_id);
2521 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2522 /* we'll error out later if we found no streams */
2527 static const gchar *
2528 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2532 const gchar *asf_name;
2533 const gchar *gst_name;
2536 "WM/Genre", GST_TAG_GENRE}, {
2537 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2538 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2539 "WM/Picture", GST_TAG_IMAGE}, {
2540 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2541 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2542 "WM/Year", GST_TAG_DATE}
2543 /* { "WM/Composer", GST_TAG_COMPOSER } */
2548 if (name_utf8 == NULL) {
2549 GST_WARNING ("Failed to convert name to UTF8, skipping");
2553 out = strlen (name_utf8);
2555 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2556 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2557 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2558 return tags[i].gst_name;
2565 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2567 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2571 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2573 if (taglist == NULL)
2576 if (gst_tag_list_is_empty (taglist)) {
2577 gst_tag_list_free (taglist);
2581 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2583 gst_tag_list_free (demux->taglist);
2584 gst_tag_list_free (taglist);
2586 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2589 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2590 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2591 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2594 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2598 const guint8 *img_data = NULL;
2599 guint32 img_data_len = 0;
2600 guint8 pic_type = 0;
2602 gst_byte_reader_init (&r, tag_data, tag_data_len);
2604 /* skip mime type string (we don't trust it and do our own typefinding),
2605 * and also skip the description string, since we don't use it */
2606 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
2607 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
2608 !gst_byte_reader_skip_string_utf16 (&r) ||
2609 !gst_byte_reader_skip_string_utf16 (&r) ||
2610 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
2611 goto not_enough_data;
2615 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
2616 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
2622 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
2623 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
2628 /* Extended Content Description Object */
2629 static GstFlowReturn
2630 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
2633 /* Other known (and unused) 'text/unicode' metadata available :
2636 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
2637 * WMFSDKVersion = 9.00.00.2980
2638 * WMFSDKNeeded = 0.0.0.0000
2639 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
2640 * WM/Publisher = 4AD
2642 * WM/ProviderRating = 8
2643 * WM/ProviderStyle = Rock (similar to WM/Genre)
2644 * WM/GenreID (similar to WM/Genre)
2645 * WM/TrackNumber (same as WM/Track but as a string)
2647 * Other known (and unused) 'non-text' metadata available :
2653 * We might want to read WM/TrackNumber and use atoi() if we don't have
2657 GstTagList *taglist;
2658 guint16 blockcount, i;
2660 GST_INFO_OBJECT (demux, "object is an extended content description");
2662 taglist = gst_tag_list_new_empty ();
2664 /* Content Descriptor Count */
2666 goto not_enough_data;
2668 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2670 for (i = 1; i <= blockcount; ++i) {
2671 const gchar *gst_tag_name;
2675 GValue tag_value = { 0, };
2678 gchar *name_utf8 = NULL;
2682 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
2683 goto not_enough_data;
2687 goto not_enough_data;
2689 /* Descriptor Value Data Type */
2690 datatype = gst_asf_demux_get_uint16 (&data, &size);
2692 /* Descriptor Value (not really a string, but same thing reading-wise) */
2693 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
2695 goto not_enough_data;
2699 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
2701 if (name_utf8 != NULL) {
2702 GST_DEBUG ("Found tag/metadata %s", name_utf8);
2704 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
2705 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
2708 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
2711 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
2714 /* get rid of tags with empty value */
2715 if (value_utf8 != NULL && *value_utf8 != '\0') {
2716 GST_DEBUG ("string value %s", value_utf8);
2718 value_utf8[out] = '\0';
2720 if (gst_tag_name != NULL) {
2721 if (strcmp (gst_tag_name, GST_TAG_DATE) == 0) {
2722 guint year = atoi (value_utf8);
2725 /* FIXME: really want a GDateTime with just the year field */
2726 g_value_init (&tag_value, G_TYPE_DATE);
2727 g_value_take_boxed (&tag_value, g_date_new_dmy (1, 1, year));
2729 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
2730 guint id3v1_genre_id;
2731 const gchar *genre_str;
2733 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
2734 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
2735 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
2736 g_free (value_utf8);
2737 value_utf8 = g_strdup (genre_str);
2742 /* convert tag from string to other type if required */
2743 tag_type = gst_tag_get_type (gst_tag_name);
2744 g_value_init (&tag_value, tag_type);
2745 if (!gst_value_deserialize (&tag_value, value_utf8)) {
2746 GValue from_val = { 0, };
2748 g_value_init (&from_val, G_TYPE_STRING);
2749 g_value_set_string (&from_val, value_utf8);
2750 if (!g_value_transform (&from_val, &tag_value)) {
2751 GST_WARNING_OBJECT (demux,
2752 "Could not transform string tag to " "%s tag type %s",
2753 gst_tag_name, g_type_name (tag_type));
2754 g_value_unset (&tag_value);
2756 g_value_unset (&from_val);
2761 GST_DEBUG ("Setting metadata");
2762 g_value_init (&tag_value, G_TYPE_STRING);
2763 g_value_set_string (&tag_value, value_utf8);
2765 } else if (value_utf8 == NULL) {
2766 GST_WARNING ("Failed to convert string value to UTF8, skipping");
2768 GST_DEBUG ("Skipping empty string value for %s",
2769 GST_STR_NULL (gst_tag_name));
2771 g_free (value_utf8);
2774 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
2776 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
2777 GST_FIXME ("Unhandled byte array tag %s",
2778 GST_STR_NULL (gst_tag_name));
2781 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
2787 case ASF_DEMUX_DATA_TYPE_DWORD:{
2788 guint uint_val = GST_READ_UINT32_LE (value);
2790 /* this is the track number */
2791 g_value_init (&tag_value, G_TYPE_UINT);
2793 /* WM/Track counts from 0 */
2794 if (!strcmp (name_utf8, "WM/Track"))
2797 g_value_set_uint (&tag_value, uint_val);
2801 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
2806 if (G_IS_VALUE (&tag_value)) {
2808 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
2810 /* WM/TrackNumber is more reliable than WM/Track, since the latter
2811 * is supposed to have a 0 base but is often wrongly written to start
2812 * from 1 as well, so prefer WM/TrackNumber when we have it: either
2813 * replace the value added earlier from WM/Track or put it first in
2814 * the list, so that it will get picked up by _get_uint() */
2815 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
2816 merge_mode = GST_TAG_MERGE_REPLACE;
2818 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
2821 GST_DEBUG ("Setting global metadata %s", name_utf8);
2822 gst_structure_set_value (demux->global_metadata, name_utf8,
2826 g_value_unset (&tag_value);
2835 gst_asf_demux_add_global_tags (demux, taglist);
2842 GST_WARNING ("Unexpected end of data parsing ext content desc object");
2843 gst_tag_list_free (taglist);
2844 return GST_FLOW_OK; /* not really fatal */
2848 static GstStructure *
2849 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
2854 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
2856 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
2859 s = gst_caps_get_structure (demux->metadata, i);
2860 if (gst_structure_has_name (s, sname))
2864 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
2866 /* try lookup again; demux->metadata took ownership of the structure, so we
2867 * can't really make any assumptions about what happened to it, so we can't
2868 * just return it directly after appending it */
2869 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
2872 static GstFlowReturn
2873 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
2876 guint16 blockcount, i;
2878 GST_INFO_OBJECT (demux, "object is a metadata object");
2880 /* Content Descriptor Count */
2882 goto not_enough_data;
2884 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2886 for (i = 0; i < blockcount; ++i) {
2888 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
2889 guint32 data_len, ival;
2892 if (size < (2 + 2 + 2 + 2 + 4))
2893 goto not_enough_data;
2895 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
2896 stream_num = gst_asf_demux_get_uint16 (&data, &size);
2897 name_len = gst_asf_demux_get_uint16 (&data, &size);
2898 data_type = gst_asf_demux_get_uint16 (&data, &size);
2899 data_len = gst_asf_demux_get_uint32 (&data, &size);
2901 if (size < name_len + data_len)
2902 goto not_enough_data;
2904 /* convert name to UTF-8 */
2905 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
2907 gst_asf_demux_skip_bytes (name_len, &data, &size);
2909 if (name_utf8 == NULL) {
2910 GST_WARNING ("Failed to convert value name to UTF8, skipping");
2911 gst_asf_demux_skip_bytes (data_len, &data, &size);
2915 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
2916 gst_asf_demux_skip_bytes (data_len, &data, &size);
2924 goto not_enough_data;
2927 ival = gst_asf_demux_get_uint32 (&data, &size);
2929 /* skip anything else there may be, just in case */
2930 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
2932 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
2933 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
2937 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
2943 GST_WARNING ("Unexpected end of data parsing metadata object");
2944 return GST_FLOW_OK; /* not really fatal */
2948 static GstFlowReturn
2949 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
2951 GstFlowReturn ret = GST_FLOW_OK;
2952 guint32 i, num_objects;
2953 guint8 unknown G_GNUC_UNUSED;
2955 /* Get the rest of the header's header */
2956 if (size < (4 + 1 + 1))
2957 goto not_enough_data;
2959 num_objects = gst_asf_demux_get_uint32 (&data, &size);
2960 unknown = gst_asf_demux_get_uint8 (&data, &size);
2961 unknown = gst_asf_demux_get_uint8 (&data, &size);
2963 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
2965 /* Loop through the header's objects, processing those */
2966 for (i = 0; i < num_objects; ++i) {
2967 GST_INFO_OBJECT (demux, "reading header part %u", i);
2968 ret = gst_asf_demux_process_object (demux, &data, &size);
2969 if (ret != GST_FLOW_OK) {
2970 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
2979 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2980 ("short read parsing HEADER object"));
2981 return GST_FLOW_ERROR;
2985 static GstFlowReturn
2986 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
2988 guint64 creation_time G_GNUC_UNUSED;
2989 guint64 file_size G_GNUC_UNUSED;
2990 guint64 send_time G_GNUC_UNUSED;
2991 guint64 packets_count, play_time, preroll;
2992 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
2994 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
2995 goto not_enough_data;
2997 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
2998 file_size = gst_asf_demux_get_uint64 (&data, &size);
2999 creation_time = gst_asf_demux_get_uint64 (&data, &size);
3000 packets_count = gst_asf_demux_get_uint64 (&data, &size);
3001 play_time = gst_asf_demux_get_uint64 (&data, &size);
3002 send_time = gst_asf_demux_get_uint64 (&data, &size);
3003 preroll = gst_asf_demux_get_uint64 (&data, &size);
3004 flags = gst_asf_demux_get_uint32 (&data, &size);
3005 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3006 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3007 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3009 demux->broadcast = ! !(flags & 0x01);
3010 demux->seekable = ! !(flags & 0x02);
3012 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3013 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3014 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3016 if (demux->broadcast) {
3017 /* these fields are invalid if the broadcast flag is set */
3022 if (min_pktsize != max_pktsize)
3023 goto non_fixed_packet_size;
3025 demux->packet_size = max_pktsize;
3027 /* FIXME: do we need send_time as well? what is it? */
3028 if ((play_time * 100) >= (preroll * GST_MSECOND))
3029 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3031 demux->play_time = 0;
3033 demux->preroll = preroll * GST_MSECOND;
3035 /* initial latency */
3036 demux->latency = demux->preroll;
3038 if (demux->play_time == 0)
3039 demux->seekable = FALSE;
3041 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3042 GST_TIME_ARGS (demux->play_time));
3043 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3044 GST_TIME_ARGS (demux->preroll));
3046 if (demux->play_time > 0) {
3047 demux->segment.duration = demux->play_time;
3050 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3052 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3057 non_fixed_packet_size:
3059 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3060 ("packet size must be fixed"));
3061 return GST_FLOW_ERROR;
3065 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3066 ("short read parsing FILE object"));
3067 return GST_FLOW_ERROR;
3071 /* Content Description Object */
3072 static GstFlowReturn
3073 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3077 const gchar *gst_tag;
3082 GST_TAG_TITLE, 0, NULL}, {
3083 GST_TAG_ARTIST, 0, NULL}, {
3084 GST_TAG_COPYRIGHT, 0, NULL}, {
3085 GST_TAG_DESCRIPTION, 0, NULL}, {
3086 GST_TAG_COMMENT, 0, NULL}
3088 GstTagList *taglist;
3089 GValue value = { 0 };
3093 GST_INFO_OBJECT (demux, "object is a comment");
3095 if (size < (2 + 2 + 2 + 2 + 2))
3096 goto not_enough_data;
3098 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3099 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3100 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3101 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3102 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3104 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3105 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3106 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3108 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3109 if (size < tags[i].val_length)
3110 goto not_enough_data;
3112 /* might be just '/0', '/0'... */
3113 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3114 /* convert to UTF-8 */
3115 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3116 "UTF-8", "UTF-16LE", &in, &out, NULL);
3118 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3121 /* parse metadata into taglist */
3122 taglist = gst_tag_list_new_empty ();
3123 g_value_init (&value, G_TYPE_STRING);
3124 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3125 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3126 g_value_set_string (&value, tags[i].val_utf8);
3127 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3128 tags[i].gst_tag, &value, NULL);
3131 g_value_unset (&value);
3133 gst_asf_demux_add_global_tags (demux, taglist);
3135 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3136 g_free (tags[i].val_utf8);
3142 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3143 "comment tag section %d, skipping comment object", i);
3144 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3145 g_free (tags[i].val_utf8);
3146 return GST_FLOW_OK; /* not really fatal */
3150 static GstFlowReturn
3151 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3154 guint16 num_streams, i;
3158 goto not_enough_data;
3160 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3162 GST_INFO ("object is a bitrate properties object with %u streams",
3165 if (size < (num_streams * (2 + 4)))
3166 goto not_enough_data;
3168 for (i = 0; i < num_streams; ++i) {
3172 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3173 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3175 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3176 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3177 stream = gst_asf_demux_get_stream (demux, stream_id);
3179 if (stream->pending_tags == NULL) {
3180 stream->pending_tags =
3181 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3184 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3187 GST_WARNING ("stream id %u is too large", stream_id);
3195 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3196 return GST_FLOW_OK; /* not really fatal */
3200 static GstFlowReturn
3201 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3204 GstFlowReturn ret = GST_FLOW_OK;
3207 /* Get the rest of the header's header */
3208 if (size < (16 + 2 + 4))
3209 goto not_enough_data;
3211 /* skip GUID and two other bytes */
3212 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3213 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3215 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3217 /* FIXME: does data_size include the rest of the header that we have read? */
3218 if (hdr_size > size)
3219 goto not_enough_data;
3221 while (hdr_size > 0) {
3222 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3223 if (ret != GST_FLOW_OK)
3231 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3232 ("short read parsing extended header object"));
3233 return GST_FLOW_ERROR;
3237 static GstFlowReturn
3238 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3244 goto not_enough_data;
3246 if (demux->languages) {
3247 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3248 g_strfreev (demux->languages);
3249 demux->languages = NULL;
3250 demux->num_languages = 0;
3253 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3254 GST_LOG ("%u languages:", demux->num_languages);
3256 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3257 for (i = 0; i < demux->num_languages; ++i) {
3258 guint8 len, *lang_data = NULL;
3261 goto not_enough_data;
3262 len = gst_asf_demux_get_uint8 (&data, &size);
3263 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3266 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3269 /* truncate "en-us" etc. to just "en" */
3270 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3273 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3274 demux->languages[i] = utf8;
3277 goto not_enough_data;
3285 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3286 g_free (demux->languages);
3287 demux->languages = NULL;
3288 return GST_FLOW_OK; /* not fatal */
3292 static GstFlowReturn
3293 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3296 GstClockTime interval;
3299 if (size < (16 + 8 + 4 + 4))
3300 goto not_enough_data;
3303 gst_asf_demux_skip_bytes (16, &data, &size);
3304 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3305 gst_asf_demux_skip_bytes (4, &data, &size);
3306 count = gst_asf_demux_get_uint32 (&data, &size);
3308 demux->sidx_interval = interval;
3309 demux->sidx_num_entries = count;
3310 g_free (demux->sidx_entries);
3311 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3313 for (i = 0; i < count; ++i) {
3314 if (G_UNLIKELY (size <= 6))
3316 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3317 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3318 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3319 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3320 demux->sidx_entries[i].count);
3323 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3330 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3331 return GST_FLOW_OK; /* not fatal */
3335 static GstFlowReturn
3336 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3337 guint8 * data, guint64 size)
3343 if (size < 16 + 2 + (2 * 2))
3344 goto not_enough_data;
3346 gst_asf_demux_get_guid (&guid, &data, &size);
3347 num = gst_asf_demux_get_uint16 (&data, &size);
3350 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3354 if (size < (num * sizeof (guint16)))
3355 goto not_enough_data;
3357 /* read mutually exclusive stream numbers */
3358 mes = g_new (guint8, num + 1);
3359 for (i = 0; i < num; ++i) {
3360 mes[i] = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3361 GST_LOG_OBJECT (demux, "mutually exclusive: stream #%d", mes[i]);
3364 /* add terminator so we can easily get the count or know when to stop */
3365 mes[i] = (guint8) - 1;
3367 demux->mut_ex_streams = g_slist_append (demux->mut_ex_streams, mes);
3374 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3375 return GST_FLOW_OK; /* not absolutely fatal */
3379 static GstFlowReturn
3380 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3383 AsfStreamExtProps esp;
3384 AsfStream *stream = NULL;
3385 AsfObject stream_obj;
3386 guint16 stream_name_count;
3387 guint16 num_payload_ext;
3389 guint8 *stream_obj_data = NULL;
3392 guint i, stream_num;
3395 obj_size = (guint) size;
3398 goto not_enough_data;
3401 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3402 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3403 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3404 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3405 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3406 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3407 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3408 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3409 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3410 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3411 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3412 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3413 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3414 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3415 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3417 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3418 GST_TIME_ARGS (esp.start_time));
3419 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3420 GST_TIME_ARGS (esp.end_time));
3421 GST_INFO ("flags = %08x", esp.flags);
3422 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3423 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3424 GST_INFO ("stream number = %u", stream_num);
3425 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3426 (esp.lang_idx < demux->num_languages) ?
3427 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3428 GST_INFO ("stream name count = %u", stream_name_count);
3430 /* read stream names */
3431 for (i = 0; i < stream_name_count; ++i) {
3432 guint16 stream_lang_idx G_GNUC_UNUSED;
3433 gchar *stream_name = NULL;
3436 goto not_enough_data;
3437 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3438 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3439 goto not_enough_data;
3440 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3441 g_free (stream_name); /* TODO: store names in struct */
3444 /* read payload extension systems stuff */
3445 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3447 if (num_payload_ext > 0)
3448 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3450 esp.payload_extensions = NULL;
3452 for (i = 0; i < num_payload_ext; ++i) {
3453 AsfPayloadExtension ext;
3455 guint32 sys_info_len;
3457 if (size < 16 + 2 + 4)
3458 goto not_enough_data;
3460 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3461 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3462 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3464 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3465 GST_LOG ("payload systems info len = %u", sys_info_len);
3466 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3467 goto not_enough_data;
3469 esp.payload_extensions[i] = ext;
3472 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3474 /* there might be an optional STREAM_INFO object here now; if not, we
3475 * should have parsed the corresponding stream info object already (since
3476 * we are parsing the extended stream properties objects delayed) */
3478 stream = gst_asf_demux_get_stream (demux, stream_num);
3482 /* get size of the stream object */
3483 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3484 goto not_enough_data;
3486 if (stream_obj.id != ASF_OBJ_STREAM)
3487 goto expected_stream_object;
3489 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3490 stream_obj.size > (10 * 1024 * 1024))
3491 goto not_enough_data;
3493 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3495 /* process this stream object later after all the other 'normal' ones
3496 * have been processed (since the others are more important/non-hidden) */
3497 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3498 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3499 goto not_enough_data;
3501 /* parse stream object */
3502 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3503 g_free (stream_obj_data);
3508 stream->ext_props = esp;
3510 /* try to set the framerate */
3511 if (stream->is_video && stream->caps) {
3512 GValue framerate = { 0 };
3516 g_value_init (&framerate, GST_TYPE_FRACTION);
3518 num = GST_SECOND / 100;
3519 denom = esp.avg_time_per_frame;
3521 /* avoid division by 0, assume 25/1 framerate */
3522 denom = GST_SECOND / 2500;
3525 gst_value_set_fraction (&framerate, num, denom);
3527 stream->caps = gst_caps_make_writable (stream->caps);
3528 s = gst_caps_get_structure (stream->caps, 0);
3529 gst_structure_set_value (s, "framerate", &framerate);
3530 g_value_unset (&framerate);
3531 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3532 num, denom, ((gdouble) num) / denom);
3535 /* add language info now if we have it */
3536 if (stream->ext_props.lang_idx < demux->num_languages) {
3537 if (stream->pending_tags == NULL)
3538 stream->pending_tags = gst_tag_list_new_empty ();
3539 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3540 demux->languages[stream->ext_props.lang_idx]);
3541 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3542 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
3546 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
3554 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
3555 return GST_FLOW_OK; /* not absolutely fatal */
3557 expected_stream_object:
3559 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
3560 "object: expected embedded stream object, but got %s object instead!",
3561 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
3562 return GST_FLOW_OK; /* not absolutely fatal */
3566 static const gchar *
3567 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
3571 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
3572 if (g_str_has_prefix (nick, "ASF_OBJ_"))
3573 nick += strlen ("ASF_OBJ_");
3575 if (demux->objpath == NULL) {
3576 demux->objpath = g_strdup (nick);
3580 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
3581 g_free (demux->objpath);
3582 demux->objpath = newpath;
3585 return (const gchar *) demux->objpath;
3589 gst_asf_demux_pop_obj (GstASFDemux * demux)
3593 if ((s = g_strrstr (demux->objpath, "/"))) {
3596 g_free (demux->objpath);
3597 demux->objpath = NULL;
3602 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
3607 /* Parse the queued extended stream property objects and add the info
3608 * to the existing streams or add the new embedded streams, but without
3609 * activating them yet */
3610 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
3611 g_slist_length (demux->ext_stream_props));
3613 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
3614 GstBuffer *buf = GST_BUFFER (l->data);
3617 gst_buffer_map (buf, &map, GST_MAP_READ);
3619 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
3620 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
3621 gst_buffer_unmap (buf, &map);
3622 gst_buffer_unref (buf);
3624 g_slist_free (demux->ext_stream_props);
3625 demux->ext_stream_props = NULL;
3630 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
3634 for (i = 0; i < demux->num_streams; ++i) {
3639 stream = &demux->stream[i];
3641 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
3643 if (stream->active) {
3644 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
3649 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
3652 /* check for each mutual exclusion whether it affects this stream */
3653 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3654 if (*mes == stream->id) {
3655 /* if yes, check if we've already added streams that are mutually
3656 * exclusive with the stream we're about to add */
3657 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3658 for (j = 0; j < demux->num_streams; ++j) {
3659 /* if the broadcast flag is set, assume the hidden streams aren't
3660 * actually streamed and hide them (or playbin won't work right),
3661 * otherwise assume their data is available */
3662 if (demux->stream[j].id == *mes && demux->broadcast) {
3664 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
3665 "mutually exclusive with already existing stream ID %d, "
3666 "hiding stream", stream->id, demux->stream[j].id);
3678 /* FIXME: we should do stream activation based on preroll data in
3679 * streaming mode too */
3680 if (demux->streaming && !is_hidden)
3681 gst_asf_demux_activate_stream (demux, stream);
3686 static GstFlowReturn
3687 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
3690 GstFlowReturn ret = GST_FLOW_OK;
3692 guint64 obj_data_size;
3694 if (*p_size < ASF_OBJECT_HEADER_SIZE)
3695 return ASF_FLOW_NEED_MORE_DATA;
3697 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
3698 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
3700 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
3702 if (*p_size < obj_data_size)
3703 return ASF_FLOW_NEED_MORE_DATA;
3705 gst_asf_demux_push_obj (demux, obj.id);
3707 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
3710 case ASF_OBJ_STREAM:
3711 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
3715 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
3717 case ASF_OBJ_HEADER:
3718 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
3720 case ASF_OBJ_COMMENT:
3721 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
3724 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
3726 case ASF_OBJ_BITRATE_PROPS:
3728 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
3731 case ASF_OBJ_EXT_CONTENT_DESC:
3733 gst_asf_demux_process_ext_content_desc (demux, *p_data,
3736 case ASF_OBJ_METADATA_OBJECT:
3737 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
3739 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
3742 /* process these later, we might not have parsed the corresponding
3743 * stream object yet */
3744 GST_LOG ("%s: queued for later parsing", demux->objpath);
3745 buf = gst_buffer_new_and_alloc (obj_data_size);
3746 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
3747 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
3751 case ASF_OBJ_LANGUAGE_LIST:
3752 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
3754 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
3755 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
3758 case ASF_OBJ_SIMPLE_INDEX:
3759 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
3761 case ASF_OBJ_CONTENT_ENCRYPTION:
3762 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
3763 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
3764 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
3765 goto error_encrypted;
3766 case ASF_OBJ_CONCEAL_NONE:
3768 case ASF_OBJ_UNDEFINED:
3769 case ASF_OBJ_CODEC_COMMENT:
3771 case ASF_OBJ_PADDING:
3772 case ASF_OBJ_BITRATE_MUTEX:
3773 case ASF_OBJ_COMPATIBILITY:
3774 case ASF_OBJ_INDEX_PLACEHOLDER:
3775 case ASF_OBJ_INDEX_PARAMETERS:
3776 case ASF_OBJ_STREAM_PRIORITIZATION:
3777 case ASF_OBJ_SCRIPT_COMMAND:
3779 /* Unknown/unhandled object, skip it and hope for the best */
3780 GST_INFO ("%s: skipping object", demux->objpath);
3785 /* this can't fail, we checked the number of bytes available before */
3786 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
3788 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
3790 gst_asf_demux_pop_obj (demux);
3797 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
3798 return GST_FLOW_ERROR;
3803 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
3804 GstBuffer ** p_buffer)
3806 GstBuffer *descrambled_buffer;
3807 GstBuffer *scrambled_buffer;
3808 GstBuffer *sub_buffer;
3815 /* descrambled_buffer is initialised in the first iteration */
3816 descrambled_buffer = NULL;
3817 scrambled_buffer = *p_buffer;
3819 if (gst_buffer_get_size (scrambled_buffer) <
3820 demux->ds_packet_size * demux->span)
3823 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
3824 offset += demux->ds_chunk_size) {
3825 off = offset / demux->ds_chunk_size;
3826 row = off / demux->span;
3827 col = off % demux->span;
3828 idx = row + col * demux->ds_packet_size / demux->ds_chunk_size;
3829 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
3830 col, off, demux->ds_chunk_size);
3831 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
3832 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
3833 demux->span, demux->ds_packet_size);
3834 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
3835 gst_buffer_get_size (scrambled_buffer));
3837 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_NONE,
3838 idx * demux->ds_chunk_size, demux->ds_chunk_size);
3840 descrambled_buffer = sub_buffer;
3842 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
3846 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
3847 GST_BUFFER_TIMESTAMP (scrambled_buffer);
3848 GST_BUFFER_DURATION (descrambled_buffer) =
3849 GST_BUFFER_DURATION (scrambled_buffer);
3850 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
3851 GST_BUFFER_OFFSET_END (descrambled_buffer) =
3852 GST_BUFFER_OFFSET_END (scrambled_buffer);
3854 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
3856 gst_buffer_unref (scrambled_buffer);
3857 *p_buffer = descrambled_buffer;
3861 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
3863 GstASFDemux *demux = GST_ASF_DEMUX (element);
3866 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
3868 for (i = 0; i < demux->num_streams; ++i) {
3869 gst_event_ref (event);
3870 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
3871 GST_OBJECT_CAST (element), event)) {
3872 gst_event_unref (event);
3877 gst_event_unref (event);
3881 /* takes ownership of the passed event */
3883 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
3885 gboolean ret = TRUE;
3888 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
3889 GST_EVENT_TYPE_NAME (event));
3891 for (i = 0; i < demux->num_streams; ++i) {
3892 gst_event_ref (event);
3893 ret &= gst_pad_push_event (demux->stream[i].pad, event);
3895 gst_event_unref (event);
3900 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
3904 gboolean res = FALSE;
3906 demux = GST_ASF_DEMUX (parent);
3908 GST_DEBUG ("handling %s query",
3909 gst_query_type_get_name (GST_QUERY_TYPE (query)));
3911 switch (GST_QUERY_TYPE (query)) {
3912 case GST_QUERY_DURATION:
3916 gst_query_parse_duration (query, &format, NULL);
3918 if (format != GST_FORMAT_TIME) {
3919 GST_LOG ("only support duration queries in TIME format");
3923 GST_OBJECT_LOCK (demux);
3925 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
3926 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
3927 GST_TIME_ARGS (demux->segment.duration));
3929 gst_query_set_duration (query, GST_FORMAT_TIME,
3930 demux->segment.duration);
3934 GST_LOG ("duration not known yet");
3937 GST_OBJECT_UNLOCK (demux);
3941 case GST_QUERY_POSITION:{
3944 gst_query_parse_position (query, &format, NULL);
3946 if (format != GST_FORMAT_TIME) {
3947 GST_LOG ("only support position queries in TIME format");
3951 GST_OBJECT_LOCK (demux);
3953 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
3954 GST_LOG ("returning position: %" GST_TIME_FORMAT,
3955 GST_TIME_ARGS (demux->segment.position));
3957 gst_query_set_position (query, GST_FORMAT_TIME,
3958 demux->segment.position);
3962 GST_LOG ("position not known yet");
3965 GST_OBJECT_UNLOCK (demux);
3969 case GST_QUERY_SEEKING:{
3972 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
3973 if (format == GST_FORMAT_TIME) {
3976 GST_OBJECT_LOCK (demux);
3977 duration = demux->segment.duration;
3978 GST_OBJECT_UNLOCK (demux);
3980 if (!demux->streaming || !demux->seekable) {
3981 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
3988 /* try downstream first in TIME */
3989 res = gst_pad_query_default (pad, parent, query);
3991 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
3992 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
3993 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
3994 /* if no luck, maybe in BYTES */
3995 if (!seekable || fmt != GST_FORMAT_TIME) {
3998 q = gst_query_new_seeking (GST_FORMAT_BYTES);
3999 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
4000 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
4001 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4002 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4003 if (fmt != GST_FORMAT_BYTES)
4006 gst_query_unref (q);
4007 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4013 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4017 case GST_QUERY_LATENCY:
4020 GstClockTime min, max;
4022 /* preroll delay does not matter in non-live pipeline,
4023 * but we might end up in a live (rtsp) one ... */
4026 res = gst_pad_query_default (pad, parent, query);
4030 gst_query_parse_latency (query, &live, &min, &max);
4032 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4033 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4034 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4036 GST_OBJECT_LOCK (demux);
4038 min += demux->latency;
4040 max += demux->latency;
4041 GST_OBJECT_UNLOCK (demux);
4043 gst_query_set_latency (query, live, min, max);
4047 res = gst_pad_query_default (pad, parent, query);
4054 static GstStateChangeReturn
4055 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4057 GstASFDemux *demux = GST_ASF_DEMUX (element);
4058 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4060 switch (transition) {
4061 case GST_STATE_CHANGE_NULL_TO_READY:{
4062 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4063 demux->need_newsegment = TRUE;
4064 demux->segment_running = FALSE;
4065 demux->accurate = FALSE;
4066 demux->adapter = gst_adapter_new ();
4067 demux->metadata = gst_caps_new_empty ();
4068 demux->global_metadata = gst_structure_new_empty ("metadata");
4069 demux->data_size = 0;
4070 demux->data_offset = 0;
4071 demux->index_offset = 0;
4072 demux->base_offset = 0;
4079 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4080 if (ret == GST_STATE_CHANGE_FAILURE)
4083 switch (transition) {
4084 case GST_STATE_CHANGE_PAUSED_TO_READY:
4085 case GST_STATE_CHANGE_READY_TO_NULL:
4086 gst_asf_demux_reset (demux, FALSE);