1 /* GStreamer ASF/WMV/WMA demuxer
2 * Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) 2006-2009 Tim-Philipp Müller <tim centricular net>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
24 * stop if at end of segment if != end of file, ie. demux->segment.stop
26 * - fix packet parsing:
27 * there's something wrong with timestamps for packets with keyframes,
35 #include <gst/gstutils.h>
36 #include <gst/base/gstbytereader.h>
37 #include <gst/riff/riff-media.h>
38 #include <gst/tag/tag.h>
39 #include <gst/gst-i18n-plugin.h>
44 #include "gstasfdemux.h"
45 #include "asfheaders.h"
46 #include "asfpacket.h"
48 static GstStaticPadTemplate gst_asf_demux_sink_template =
49 GST_STATIC_PAD_TEMPLATE ("sink",
52 GST_STATIC_CAPS ("video/x-ms-asf")
55 static GstStaticPadTemplate audio_src_template =
56 GST_STATIC_PAD_TEMPLATE ("audio_%u",
61 static GstStaticPadTemplate video_src_template =
62 GST_STATIC_PAD_TEMPLATE ("video_%u",
67 /* size of an ASF object header, ie. GUID (16 bytes) + object size (8 bytes) */
68 #define ASF_OBJECT_HEADER_SIZE (16+8)
70 /* FIXME: get rid of this */
71 /* abuse this GstFlowReturn enum for internal usage */
72 #define ASF_FLOW_NEED_MORE_DATA 99
74 #define gst_asf_get_flow_name(flow) \
75 (flow == ASF_FLOW_NEED_MORE_DATA) ? \
76 "need-more-data" : gst_flow_get_name (flow)
78 GST_DEBUG_CATEGORY (asfdemux_dbg);
80 static GstStateChangeReturn gst_asf_demux_change_state (GstElement * element,
81 GstStateChange transition);
82 static gboolean gst_asf_demux_element_send_event (GstElement * element,
84 static gboolean gst_asf_demux_send_event_unlocked (GstASFDemux * demux,
86 static gboolean gst_asf_demux_handle_src_query (GstPad * pad,
87 GstObject * parent, GstQuery * query);
88 static GstFlowReturn gst_asf_demux_chain (GstPad * pad, GstObject * parent,
90 static gboolean gst_asf_demux_sink_event (GstPad * pad, GstObject * parent,
92 static GstFlowReturn gst_asf_demux_process_object (GstASFDemux * demux,
93 guint8 ** p_data, guint64 * p_size);
94 static gboolean gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent);
95 static gboolean gst_asf_demux_activate_mode (GstPad * sinkpad,
96 GstObject * parent, GstPadMode mode, gboolean active);
97 static void gst_asf_demux_loop (GstASFDemux * demux);
99 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux);
100 static gboolean gst_asf_demux_pull_headers (GstASFDemux * demux);
101 static void gst_asf_demux_pull_indices (GstASFDemux * demux);
102 static void gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * asf);
104 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data);
105 static void gst_asf_demux_descramble_buffer (GstASFDemux * demux,
106 AsfStream * stream, GstBuffer ** p_buffer);
107 static void gst_asf_demux_activate_stream (GstASFDemux * demux,
109 static GstStructure *gst_asf_demux_get_metadata_for_stream (GstASFDemux * d,
111 static GstFlowReturn gst_asf_demux_push_complete_payloads (GstASFDemux * demux,
114 #define gst_asf_demux_parent_class parent_class
115 G_DEFINE_TYPE (GstASFDemux, gst_asf_demux, GST_TYPE_ELEMENT);
118 gst_asf_demux_class_init (GstASFDemuxClass * klass)
120 GstElementClass *gstelement_class;
122 gstelement_class = (GstElementClass *) klass;
124 gst_element_class_set_static_metadata (gstelement_class, "ASF Demuxer",
126 "Demultiplexes ASF Streams", "Owen Fraser-Green <owen@discobabe.net>");
128 gst_element_class_add_pad_template (gstelement_class,
129 gst_static_pad_template_get (&audio_src_template));
130 gst_element_class_add_pad_template (gstelement_class,
131 gst_static_pad_template_get (&video_src_template));
132 gst_element_class_add_pad_template (gstelement_class,
133 gst_static_pad_template_get (&gst_asf_demux_sink_template));
135 gstelement_class->change_state =
136 GST_DEBUG_FUNCPTR (gst_asf_demux_change_state);
137 gstelement_class->send_event =
138 GST_DEBUG_FUNCPTR (gst_asf_demux_element_send_event);
142 gst_asf_demux_free_stream (GstASFDemux * demux, AsfStream * stream)
144 gst_caps_replace (&stream->caps, NULL);
145 if (stream->pending_tags) {
146 gst_tag_list_free (stream->pending_tags);
147 stream->pending_tags = NULL;
151 gst_element_remove_pad (GST_ELEMENT_CAST (demux), stream->pad);
153 gst_object_unref (stream->pad);
157 while (stream->payloads->len > 0) {
161 last = stream->payloads->len - 1;
162 payload = &g_array_index (stream->payloads, AsfPayload, last);
163 gst_buffer_replace (&payload->buf, NULL);
164 g_array_remove_index (stream->payloads, last);
166 if (stream->payloads) {
167 g_array_free (stream->payloads, TRUE);
168 stream->payloads = NULL;
170 if (stream->ext_props.valid) {
171 g_free (stream->ext_props.payload_extensions);
172 stream->ext_props.payload_extensions = NULL;
177 gst_asf_demux_reset (GstASFDemux * demux, gboolean chain_reset)
179 GST_LOG_OBJECT (demux, "resetting");
181 gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
182 demux->segment_running = FALSE;
183 if (demux->adapter && !chain_reset) {
184 gst_adapter_clear (demux->adapter);
185 g_object_unref (demux->adapter);
186 demux->adapter = NULL;
188 if (demux->taglist) {
189 gst_tag_list_free (demux->taglist);
190 demux->taglist = NULL;
192 if (demux->metadata) {
193 gst_caps_unref (demux->metadata);
194 demux->metadata = NULL;
196 if (demux->global_metadata) {
197 gst_structure_free (demux->global_metadata);
198 demux->global_metadata = NULL;
201 demux->state = GST_ASF_DEMUX_STATE_HEADER;
202 g_free (demux->objpath);
203 demux->objpath = NULL;
204 g_strfreev (demux->languages);
205 demux->languages = NULL;
206 demux->num_languages = 0;
207 g_slist_foreach (demux->ext_stream_props, (GFunc) gst_mini_object_unref,
209 g_slist_free (demux->ext_stream_props);
210 demux->ext_stream_props = NULL;
212 while (demux->old_num_streams > 0) {
213 gst_asf_demux_free_stream (demux,
214 &demux->old_stream[demux->old_num_streams - 1]);
215 --demux->old_num_streams;
217 memset (demux->old_stream, 0, sizeof (demux->old_stream));
218 demux->old_num_streams = 0;
220 /* when resetting for a new chained asf, we don't want to remove the pads
221 * before adding the new ones */
223 memcpy (demux->old_stream, demux->stream, sizeof (demux->stream));
224 demux->old_num_streams = demux->num_streams;
225 demux->num_streams = 0;
228 while (demux->num_streams > 0) {
229 gst_asf_demux_free_stream (demux, &demux->stream[demux->num_streams - 1]);
230 --demux->num_streams;
232 memset (demux->stream, 0, sizeof (demux->stream));
234 /* do not remove those for not adding pads with same name */
235 demux->num_audio_streams = 0;
236 demux->num_video_streams = 0;
238 demux->num_streams = 0;
239 demux->activated_streams = FALSE;
240 demux->first_ts = GST_CLOCK_TIME_NONE;
241 demux->segment_ts = GST_CLOCK_TIME_NONE;
244 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
245 demux->state = GST_ASF_DEMUX_STATE_HEADER;
246 demux->seekable = FALSE;
247 demux->broadcast = FALSE;
248 demux->sidx_interval = 0;
249 demux->sidx_num_entries = 0;
250 g_free (demux->sidx_entries);
251 demux->sidx_entries = NULL;
253 demux->speed_packets = 1;
256 GST_LOG_OBJECT (demux, "Restarting");
257 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
258 demux->need_newsegment = TRUE;
259 demux->segment_running = FALSE;
260 demux->accurate = FALSE;
261 demux->metadata = gst_caps_new_empty ();
262 demux->global_metadata = gst_structure_new_empty ("metadata");
263 demux->data_size = 0;
264 demux->data_offset = 0;
265 demux->index_offset = 0;
267 demux->base_offset = 0;
272 gst_asf_demux_init (GstASFDemux * demux)
275 gst_pad_new_from_static_template (&gst_asf_demux_sink_template, "sink");
276 gst_pad_set_chain_function (demux->sinkpad,
277 GST_DEBUG_FUNCPTR (gst_asf_demux_chain));
278 gst_pad_set_event_function (demux->sinkpad,
279 GST_DEBUG_FUNCPTR (gst_asf_demux_sink_event));
280 gst_pad_set_activate_function (demux->sinkpad,
281 GST_DEBUG_FUNCPTR (gst_asf_demux_activate));
282 gst_pad_set_activatemode_function (demux->sinkpad,
283 GST_DEBUG_FUNCPTR (gst_asf_demux_activate_mode));
284 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
286 /* set initial state */
287 gst_asf_demux_reset (demux, FALSE);
291 gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent)
296 query = gst_query_new_scheduling ();
298 if (!gst_pad_peer_query (sinkpad, query)) {
299 gst_query_unref (query);
303 pull_mode = gst_query_has_scheduling_mode (query, GST_PAD_MODE_PULL);
304 gst_query_unref (query);
309 GST_DEBUG_OBJECT (sinkpad, "activating pull");
310 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
314 GST_DEBUG_OBJECT (sinkpad, "activating push");
315 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
320 gst_asf_demux_activate_mode (GstPad * sinkpad, GstObject * parent,
321 GstPadMode mode, gboolean active)
326 demux = GST_ASF_DEMUX (parent);
329 case GST_PAD_MODE_PUSH:
330 demux->state = GST_ASF_DEMUX_STATE_HEADER;
331 demux->streaming = TRUE;
334 case GST_PAD_MODE_PULL:
336 demux->state = GST_ASF_DEMUX_STATE_HEADER;
337 demux->streaming = FALSE;
339 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_asf_demux_loop,
342 res = gst_pad_stop_task (sinkpad);
353 gst_asf_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
358 demux = GST_ASF_DEMUX (parent);
360 GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
361 switch (GST_EVENT_TYPE (event)) {
362 case GST_EVENT_SEGMENT:{
363 const GstSegment *segment;
365 gst_event_parse_segment (event, &segment);
367 if (segment->format == GST_FORMAT_BYTES) {
368 if (demux->packet_size && segment->start > demux->data_offset)
369 demux->packet = (segment->start - demux->data_offset) /
373 } else if (segment->format == GST_FORMAT_TIME) {
374 /* do not know packet position, not really a problem */
377 GST_WARNING_OBJECT (demux, "unsupported newsegment format, ignoring");
378 gst_event_unref (event);
382 /* record upstream segment for interpolation */
383 if (segment->format != demux->in_segment.format)
384 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
385 gst_segment_copy_into (segment, &demux->in_segment);
387 /* in either case, clear some state and generate newsegment later on */
388 GST_OBJECT_LOCK (demux);
389 demux->segment_ts = GST_CLOCK_TIME_NONE;
390 demux->in_gap = GST_CLOCK_TIME_NONE;
391 demux->need_newsegment = TRUE;
392 gst_asf_demux_reset_stream_state_after_discont (demux);
393 GST_OBJECT_UNLOCK (demux);
395 gst_event_unref (event);
401 if (demux->state == GST_ASF_DEMUX_STATE_HEADER) {
402 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
403 (_("This stream contains no data.")),
404 ("got eos and didn't receive a complete header object"));
407 flow = gst_asf_demux_push_complete_payloads (demux, TRUE);
408 if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
409 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
410 (_("Internal data stream error.")),
411 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
415 GST_OBJECT_LOCK (demux);
416 gst_adapter_clear (demux->adapter);
417 GST_OBJECT_UNLOCK (demux);
418 gst_asf_demux_send_event_unlocked (demux, event);
422 case GST_EVENT_FLUSH_STOP:
423 GST_OBJECT_LOCK (demux);
424 gst_asf_demux_reset_stream_state_after_discont (demux);
425 GST_OBJECT_UNLOCK (demux);
426 gst_asf_demux_send_event_unlocked (demux, event);
427 /* upon activation, latency is no longer introduced, e.g. after seek */
428 if (demux->activated_streams)
433 ret = gst_pad_event_default (pad, parent, event);
441 gst_asf_demux_seek_index_lookup (GstASFDemux * demux, guint * packet,
442 GstClockTime seek_time, GstClockTime * p_idx_time, guint * speed,
443 gboolean next, gboolean * eos)
445 GstClockTime idx_time;
451 if (G_UNLIKELY (demux->sidx_num_entries == 0 || demux->sidx_interval == 0))
454 idx = (guint) ((seek_time + demux->preroll) / demux->sidx_interval);
457 /* if we want the next keyframe, we have to go forward till we find
458 a different packet number */
460 if (idx >= demux->sidx_num_entries - 1) {
461 /* If we get here, we're asking for next keyframe after the last one. There isn't one. */
466 for (idx2 = idx + 1; idx2 < demux->sidx_num_entries; ++idx2) {
467 if (demux->sidx_entries[idx].packet != demux->sidx_entries[idx2].packet) {
474 if (G_UNLIKELY (idx >= demux->sidx_num_entries)) {
480 *packet = demux->sidx_entries[idx].packet;
482 *speed = demux->sidx_entries[idx].count;
484 /* so we get closer to the actual time of the packet ... actually, let's not
485 * do this, since we throw away superfluous payloads before the seek position
486 * anyway; this way, our key unit seek 'snap resolution' is a bit better
487 * (ie. same as index resolution) */
489 while (idx > 0 && demux->sidx_entries[idx-1] == demux->sidx_entries[idx])
493 idx_time = demux->sidx_interval * idx;
494 if (G_LIKELY (idx_time >= demux->preroll))
495 idx_time -= demux->preroll;
497 GST_DEBUG_OBJECT (demux, "%" GST_TIME_FORMAT " => packet %u at %"
498 GST_TIME_FORMAT, GST_TIME_ARGS (seek_time), *packet,
499 GST_TIME_ARGS (idx_time));
501 if (G_LIKELY (p_idx_time))
502 *p_idx_time = idx_time;
508 gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * demux)
512 gst_adapter_clear (demux->adapter);
514 GST_DEBUG_OBJECT (demux, "reset stream state");
516 for (n = 0; n < demux->num_streams; n++) {
517 demux->stream[n].discont = TRUE;
518 demux->stream[n].last_flow = GST_FLOW_OK;
520 while (demux->stream[n].payloads->len > 0) {
524 last = demux->stream[n].payloads->len - 1;
525 payload = &g_array_index (demux->stream[n].payloads, AsfPayload, last);
526 gst_buffer_replace (&payload->buf, NULL);
527 g_array_remove_index (demux->stream[n].payloads, last);
533 gst_asf_demux_mark_discont (GstASFDemux * demux)
537 GST_DEBUG_OBJECT (demux, "Mark stream discont");
539 for (n = 0; n < demux->num_streams; n++)
540 demux->stream[n].discont = TRUE;
543 /* do a seek in push based mode */
545 gst_asf_demux_handle_seek_push (GstASFDemux * demux, GstEvent * event)
550 GstSeekType cur_type, stop_type;
555 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
558 stop_type = GST_SEEK_TYPE_NONE;
561 GST_DEBUG_OBJECT (demux, "seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (cur));
563 /* determine packet, by index or by estimation */
564 if (!gst_asf_demux_seek_index_lookup (demux, &packet, cur, NULL, NULL, FALSE,
567 (guint) gst_util_uint64_scale (demux->num_packets, cur,
571 if (packet > demux->num_packets) {
572 GST_DEBUG_OBJECT (demux, "could not determine packet to seek to, "
577 GST_DEBUG_OBJECT (demux, "seeking to packet %d", packet);
579 cur = demux->data_offset + (packet * demux->packet_size);
581 GST_DEBUG_OBJECT (demux, "Pushing BYTE seek rate %g, "
582 "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT, rate, cur, stop);
583 /* BYTE seek event */
584 event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type, cur,
586 res = gst_pad_push_event (demux->sinkpad, event);
592 gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
594 GstClockTime idx_time;
597 GstSeekType cur_type, stop_type;
599 gboolean only_need_update;
600 gboolean keyunit_sync, after, before, next;
605 guint packet, speed_count = 1;
608 if (G_UNLIKELY (demux->seekable == FALSE || demux->packet_size == 0 ||
609 demux->num_packets == 0 || demux->play_time == 0)) {
610 GST_LOG_OBJECT (demux, "stream is not seekable");
614 if (G_UNLIKELY (!demux->activated_streams)) {
615 GST_LOG_OBJECT (demux, "streams not yet activated, ignoring seek");
619 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
622 if (G_UNLIKELY (format != GST_FORMAT_TIME)) {
623 GST_LOG_OBJECT (demux, "seeking is only supported in TIME format");
627 if (G_UNLIKELY (rate <= 0.0)) {
628 GST_LOG_OBJECT (demux, "backward playback is not supported yet");
632 flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
634 ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
635 keyunit_sync = ((flags & GST_SEEK_FLAG_KEY_UNIT) == GST_SEEK_FLAG_KEY_UNIT);
636 after = ((flags & GST_SEEK_FLAG_SNAP_AFTER) == GST_SEEK_FLAG_SNAP_AFTER);
637 before = ((flags & GST_SEEK_FLAG_SNAP_BEFORE) == GST_SEEK_FLAG_SNAP_BEFORE);
638 next = after && !before;
640 if (G_UNLIKELY (demux->streaming)) {
641 /* support it safely needs more segment handling, e.g. closing etc */
643 GST_LOG_OBJECT (demux, "streaming; non-flushing seek not supported");
646 /* we can (re)construct the start later on, but not the end */
647 if (stop_type != GST_SEEK_TYPE_NONE) {
648 GST_LOG_OBJECT (demux, "streaming; end type must be NONE");
651 gst_event_ref (event);
652 /* upstream might handle TIME seek, e.g. mms or rtsp,
653 * or not, e.g. http, then we give it a hand */
654 if (!gst_pad_push_event (demux->sinkpad, event))
655 return gst_asf_demux_handle_seek_push (demux, event);
660 /* unlock the streaming thread */
661 if (G_LIKELY (flush)) {
662 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
663 gst_asf_demux_send_event_unlocked (demux, gst_event_new_flush_start ());
665 gst_pad_pause_task (demux->sinkpad);
668 /* grab the stream lock so that streaming cannot continue, for
669 * non flushing seeks when the element is in PAUSED this could block
671 GST_PAD_STREAM_LOCK (demux->sinkpad);
673 /* we now can stop flushing, since we have the stream lock now */
674 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop (TRUE));
676 if (G_LIKELY (flush))
677 gst_asf_demux_send_event_unlocked (demux, gst_event_new_flush_stop (TRUE));
679 /* operating on copy of segment until we know the seek worked */
680 segment = demux->segment;
682 if (G_UNLIKELY (demux->segment_running && !flush)) {
683 GstSegment newsegment;
686 /* create the segment event to close the current segment */
687 gst_segment_copy_into (&segment, &newsegment);
688 newseg = gst_event_new_segment (&newsegment);
690 gst_asf_demux_send_event_unlocked (demux, newseg);
693 gst_segment_do_seek (&segment, rate, format, flags, cur_type,
694 cur, stop_type, stop, &only_need_update);
696 GST_DEBUG_OBJECT (demux, "seeking to time %" GST_TIME_FORMAT ", segment: "
697 "%" GST_SEGMENT_FORMAT, GST_TIME_ARGS (segment.start), &segment);
699 seek_time = segment.start;
701 /* FIXME: should check the KEY_UNIT flag; need to adjust position to
702 * real start of data and segment_start to indexed time for key unit seek*/
703 if (G_UNLIKELY (!gst_asf_demux_seek_index_lookup (demux, &packet, seek_time,
704 &idx_time, &speed_count, next, &eos))) {
708 demux->packet = demux->num_packets;
712 /* First try to query our source to see if it can convert for us. This is
713 the case when our source is an mms stream, notice that in this case
714 gstmms will do a time based seek to get the byte offset, this is not a
715 problem as the seek to this offset needs to happen anway. */
716 if (gst_pad_peer_query_convert (demux->sinkpad, GST_FORMAT_TIME, seek_time,
717 GST_FORMAT_BYTES, &offset)) {
718 packet = (offset - demux->data_offset) / demux->packet_size;
719 GST_LOG_OBJECT (demux, "convert %" GST_TIME_FORMAT
720 " to bytes query result: %" G_GINT64_FORMAT ", data_ofset: %"
721 G_GINT64_FORMAT ", packet_size: %u," " resulting packet: %u\n",
722 GST_TIME_ARGS (seek_time), offset, demux->data_offset,
723 demux->packet_size, packet);
725 /* FIXME: For streams containing video, seek to an earlier position in
726 * the hope of hitting a keyframe and let the sinks throw away the stuff
727 * before the segment start. For audio-only this is unnecessary as every
729 if (flush && (demux->accurate || (keyunit_sync && !next))
730 && demux->num_video_streams > 0) {
731 seek_time -= 5 * GST_SECOND;
736 packet = (guint) gst_util_uint64_scale (demux->num_packets,
737 seek_time, demux->play_time);
739 if (packet > demux->num_packets)
740 packet = demux->num_packets;
743 if (G_LIKELY (keyunit_sync)) {
744 GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
745 GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
746 GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
747 segment.start = idx_time;
748 segment.position = idx_time;
749 segment.time = idx_time;
753 GST_DEBUG_OBJECT (demux, "seeking to packet %u (%d)", packet, speed_count);
755 GST_OBJECT_LOCK (demux);
756 demux->segment = segment;
757 demux->packet = packet;
758 demux->need_newsegment = TRUE;
759 demux->speed_packets = speed_count;
760 gst_asf_demux_reset_stream_state_after_discont (demux);
761 GST_OBJECT_UNLOCK (demux);
764 /* restart our task since it might have been stopped when we did the flush */
765 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_asf_demux_loop,
768 /* streaming can continue now */
769 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
775 gst_asf_demux_handle_src_event (GstPad * pad, GstObject * parent,
781 demux = GST_ASF_DEMUX (parent);
783 switch (GST_EVENT_TYPE (event)) {
785 GST_LOG_OBJECT (pad, "seek event");
786 ret = gst_asf_demux_handle_seek_event (demux, event);
787 gst_event_unref (event);
790 case GST_EVENT_NAVIGATION:
791 /* just drop these two silently */
792 gst_event_unref (event);
796 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
797 ret = gst_pad_event_default (pad, parent, event);
804 static inline guint32
805 gst_asf_demux_identify_guid (const ASFGuidHash * guids, ASFGuid * guid)
809 ret = gst_asf_identify_guid (guids, guid);
811 GST_LOG ("%s 0x%08x-0x%08x-0x%08x-0x%08x",
812 gst_asf_get_guid_nick (guids, ret),
813 guid->v1, guid->v2, guid->v3, guid->v4);
825 /* expect is true when the user is expeting an object,
826 * when false, it will give no warnings if the object
830 asf_demux_peek_object (GstASFDemux * demux, const guint8 * data,
831 guint data_len, AsfObject * object, gboolean expect)
835 if (data_len < ASF_OBJECT_HEADER_SIZE)
838 guid.v1 = GST_READ_UINT32_LE (data + 0);
839 guid.v2 = GST_READ_UINT32_LE (data + 4);
840 guid.v3 = GST_READ_UINT32_LE (data + 8);
841 guid.v4 = GST_READ_UINT32_LE (data + 12);
843 object->size = GST_READ_UINT64_LE (data + 16);
845 /* FIXME: make asf_demux_identify_object_guid() */
846 object->id = gst_asf_demux_identify_guid (asf_object_guids, &guid);
847 if (object->id == ASF_OBJ_UNDEFINED && expect) {
848 GST_WARNING_OBJECT (demux, "Unknown object %08x-%08x-%08x-%08x",
849 guid.v1, guid.v2, guid.v3, guid.v4);
856 gst_asf_demux_release_old_pads (GstASFDemux * demux)
858 GST_DEBUG_OBJECT (demux, "Releasing old pads");
860 while (demux->old_num_streams > 0) {
861 gst_pad_push_event (demux->old_stream[demux->old_num_streams - 1].pad,
862 gst_event_new_eos ());
863 gst_asf_demux_free_stream (demux,
864 &demux->old_stream[demux->old_num_streams - 1]);
865 --demux->old_num_streams;
867 memset (demux->old_stream, 0, sizeof (demux->old_stream));
868 demux->old_num_streams = 0;
872 gst_asf_demux_chain_headers (GstASFDemux * demux)
876 guint8 *header_data, *data = NULL;
877 const guint8 *cdata = NULL;
880 cdata = (guint8 *) gst_adapter_map (demux->adapter, ASF_OBJECT_HEADER_SIZE);
884 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
885 if (obj.id != ASF_OBJ_HEADER)
888 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
890 /* + 50 for non-packet data at beginning of ASF_OBJ_DATA */
891 if (gst_adapter_available (demux->adapter) < obj.size + 50)
894 data = gst_adapter_take (demux->adapter, obj.size + 50);
897 header_size = obj.size;
898 flow = gst_asf_demux_process_object (demux, &header_data, &header_size);
899 if (flow != GST_FLOW_OK)
902 /* calculate where the packet data starts */
903 demux->data_offset = obj.size + 50;
905 /* now parse the beginning of the ASF_OBJ_DATA object */
906 if (!gst_asf_demux_parse_data_object_start (demux, data + obj.size))
909 if (demux->num_streams == 0)
918 GST_LOG_OBJECT (demux, "not enough data in adapter yet");
925 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
926 ("This doesn't seem to be an ASF file"));
928 return GST_FLOW_ERROR;
933 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
934 ("header parsing failed, or no streams found, flow = %s",
935 gst_flow_get_name (flow)));
937 return GST_FLOW_ERROR;
942 gst_asf_demux_aggregate_flow_return (GstASFDemux * demux, AsfStream * stream,
947 GST_DEBUG_OBJECT (demux, "Aggregating");
949 /* Store the value */
950 stream->last_flow = flow;
952 /* any other error that is not not-linked can be returned right away */
953 if (flow != GST_FLOW_NOT_LINKED)
956 for (i = 0; i < demux->num_streams; i++) {
957 if (demux->stream[i].active) {
958 flow = demux->stream[i].last_flow;
959 GST_DEBUG_OBJECT (demux, "Aggregating: flow %i return %s", i,
960 gst_flow_get_name (flow));
961 if (flow != GST_FLOW_NOT_LINKED)
966 /* If we got here, then all our active streams are not linked */
972 gst_asf_demux_pull_data (GstASFDemux * demux, guint64 offset, guint size,
973 GstBuffer ** p_buf, GstFlowReturn * p_flow)
978 GST_LOG_OBJECT (demux, "pulling buffer at %" G_GUINT64_FORMAT "+%u",
981 flow = gst_pad_pull_range (demux->sinkpad, offset, size, p_buf);
983 if (G_LIKELY (p_flow))
986 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
987 GST_DEBUG_OBJECT (demux, "flow %s pulling buffer at %" G_GUINT64_FORMAT
988 "+%u", gst_flow_get_name (flow), offset, size);
993 g_assert (*p_buf != NULL);
995 buffer_size = gst_buffer_get_size (*p_buf);
996 if (G_UNLIKELY (buffer_size < size)) {
997 GST_DEBUG_OBJECT (demux, "short read pulling buffer at %" G_GUINT64_FORMAT
998 "+%u (got only %" G_GSIZE_FORMAT " bytes)", offset, size, buffer_size);
999 gst_buffer_unref (*p_buf);
1000 if (G_LIKELY (p_flow))
1001 *p_flow = GST_FLOW_EOS;
1010 gst_asf_demux_pull_indices (GstASFDemux * demux)
1012 GstBuffer *buf = NULL;
1016 offset = demux->index_offset;
1018 if (G_UNLIKELY (offset == 0)) {
1019 GST_DEBUG_OBJECT (demux, "can't read indices, don't know index offset");
1023 while (gst_asf_demux_pull_data (demux, offset, 16 + 8, &buf, NULL)) {
1029 gst_buffer_map (buf, &map, GST_MAP_READ);
1030 g_assert (map.size >= 16 + 8);
1031 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1032 gst_buffer_unmap (buf, &map);
1033 gst_buffer_replace (&buf, NULL);
1035 /* check for sanity */
1036 if (G_UNLIKELY (obj.size > (5 * 1024 * 1024))) {
1037 GST_DEBUG_OBJECT (demux, "implausible index object size, bailing out");
1041 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, offset, obj.size, &buf,
1045 GST_LOG_OBJECT (demux, "index object at offset 0x%" G_GINT64_MODIFIER "X"
1046 ", size %u", offset, (guint) obj.size);
1048 offset += obj.size; /* increase before _process_object changes it */
1050 gst_buffer_map (buf, &map, GST_MAP_READ);
1051 g_assert (map.size >= obj.size);
1052 bufdata = (guint8 *) map.data;
1053 flow = gst_asf_demux_process_object (demux, &bufdata, &obj.size);
1054 gst_buffer_unmap (buf, &map);
1055 gst_buffer_replace (&buf, NULL);
1057 if (G_UNLIKELY (flow != GST_FLOW_OK))
1062 GST_DEBUG_OBJECT (demux, "read %u index objects", num_read);
1066 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data)
1070 asf_demux_peek_object (demux, data, 50, &obj, TRUE);
1071 if (obj.id != ASF_OBJ_DATA) {
1072 GST_WARNING_OBJECT (demux, "headers not followed by a DATA object");
1076 demux->state = GST_ASF_DEMUX_STATE_DATA;
1078 if (!demux->broadcast && obj.size > 50) {
1079 demux->data_size = obj.size - 50;
1080 /* CHECKME: for at least one file this is off by +158 bytes?! */
1081 demux->index_offset = demux->data_offset + demux->data_size;
1083 demux->data_size = 0;
1084 demux->index_offset = 0;
1089 if (!demux->broadcast) {
1090 /* skip object header (24 bytes) and file GUID (16 bytes) */
1091 demux->num_packets = GST_READ_UINT64_LE (data + (16 + 8) + 16);
1093 demux->num_packets = 0;
1096 if (demux->num_packets == 0)
1097 demux->seekable = FALSE;
1099 /* fallback in the unlikely case that headers are inconsistent, can't hurt */
1100 if (demux->data_size == 0 && demux->num_packets > 0) {
1101 demux->data_size = demux->num_packets * demux->packet_size;
1102 demux->index_offset = demux->data_offset + demux->data_size;
1105 /* process pending stream objects and create pads for those */
1106 gst_asf_demux_process_queued_extended_stream_objects (demux);
1108 GST_INFO_OBJECT (demux, "Stream has %" G_GUINT64_FORMAT " packets, "
1109 "data_offset=%" G_GINT64_FORMAT ", data_size=%" G_GINT64_FORMAT
1110 ", index_offset=%" G_GUINT64_FORMAT, demux->num_packets,
1111 demux->data_offset, demux->data_size, demux->index_offset);
1117 gst_asf_demux_pull_headers (GstASFDemux * demux)
1121 GstBuffer *buf = NULL;
1126 GST_LOG_OBJECT (demux, "reading headers");
1128 /* pull HEADER object header, so we know its size */
1129 if (!gst_asf_demux_pull_data (demux, demux->base_offset, 16 + 8, &buf, NULL))
1132 gst_buffer_map (buf, &map, GST_MAP_READ);
1133 g_assert (map.size >= 16 + 8);
1134 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1135 gst_buffer_unmap (buf, &map);
1136 gst_buffer_replace (&buf, NULL);
1138 if (obj.id != ASF_OBJ_HEADER)
1141 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
1143 /* pull HEADER object */
1144 if (!gst_asf_demux_pull_data (demux, demux->base_offset, obj.size, &buf,
1148 size = obj.size; /* don't want obj.size changed */
1149 gst_buffer_map (buf, &map, GST_MAP_READ);
1150 g_assert (map.size >= size);
1151 bufdata = (guint8 *) map.data;
1152 flow = gst_asf_demux_process_object (demux, &bufdata, &size);
1153 gst_buffer_unmap (buf, &map);
1154 gst_buffer_replace (&buf, NULL);
1156 if (flow != GST_FLOW_OK) {
1157 GST_WARNING_OBJECT (demux, "process_object: %s", gst_flow_get_name (flow));
1161 /* calculate where the packet data starts */
1162 demux->data_offset = demux->base_offset + obj.size + 50;
1164 /* now pull beginning of DATA object before packet data */
1165 if (!gst_asf_demux_pull_data (demux, demux->base_offset + obj.size, 50, &buf,
1169 gst_buffer_map (buf, &map, GST_MAP_READ);
1170 g_assert (map.size >= size);
1171 bufdata = (guint8 *) map.data;
1172 if (!gst_asf_demux_parse_data_object_start (demux, bufdata))
1175 if (demux->num_streams == 0)
1178 gst_buffer_unmap (buf, &map);
1179 gst_buffer_replace (&buf, NULL);
1187 gst_buffer_unmap (buf, &map);
1188 gst_buffer_replace (&buf, NULL);
1190 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1191 ("This doesn't seem to be an ASF file"));
1200 gst_buffer_unmap (buf, &map);
1201 gst_buffer_replace (&buf, NULL);
1202 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), (NULL));
1208 all_streams_prerolled (GstASFDemux * demux)
1210 GstClockTime preroll_time;
1211 guint i, num_no_data = 0;
1213 /* Allow at least 500ms of preroll_time */
1214 preroll_time = MAX (demux->preroll, 500 * GST_MSECOND);
1216 /* returns TRUE as long as there isn't a stream which (a) has data queued
1217 * and (b) the timestamp of last piece of data queued is < demux->preroll
1218 * AND there is at least one other stream with data queued */
1219 for (i = 0; i < demux->num_streams; ++i) {
1220 AsfPayload *last_payload;
1224 stream = &demux->stream[i];
1225 if (G_UNLIKELY (stream->payloads->len == 0)) {
1227 GST_LOG_OBJECT (stream->pad, "no data queued");
1231 last_idx = stream->payloads->len - 1;
1232 last_payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1234 GST_LOG_OBJECT (stream->pad, "checking if %" GST_TIME_FORMAT " > %"
1235 GST_TIME_FORMAT, GST_TIME_ARGS (last_payload->ts),
1236 GST_TIME_ARGS (preroll_time));
1237 if (G_UNLIKELY (last_payload->ts <= preroll_time)) {
1238 GST_LOG_OBJECT (stream->pad, "not beyond preroll point yet");
1243 if (G_UNLIKELY (num_no_data == demux->num_streams))
1251 gst_asf_demux_have_mutually_exclusive_active_stream (GstASFDemux * demux,
1256 for (l = demux->mut_ex_streams; l != NULL; l = l->next) {
1259 /* check for each mutual exclusion group whether it affects this stream */
1260 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1261 if (*mes == stream->id) {
1262 /* we are in this group; let's check if we've already activated streams
1263 * that are in the same group (and hence mutually exclusive to this
1265 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1268 for (i = 0; i < demux->num_streams; ++i) {
1269 if (demux->stream[i].id == *mes && demux->stream[i].active) {
1270 GST_LOG_OBJECT (demux, "stream with ID %d is mutually exclusive "
1271 "to already active stream with ID %d", stream->id,
1272 demux->stream[i].id);
1277 /* we can only be in this group once, let's break out and move on to
1278 * the next mutual exclusion group */
1289 gst_asf_demux_check_activate_streams (GstASFDemux * demux, gboolean force)
1293 if (demux->activated_streams)
1296 if (!all_streams_prerolled (demux) && !force) {
1297 GST_DEBUG_OBJECT (demux, "not all streams with data beyond preroll yet");
1301 for (i = 0; i < demux->num_streams; ++i) {
1302 AsfStream *stream = &demux->stream[i];
1304 if (stream->payloads->len > 0) {
1305 /* we don't check mutual exclusion stuff here; either we have data for
1306 * a stream, then we active it, or we don't, then we'll ignore it */
1307 GST_LOG_OBJECT (stream->pad, "is prerolled - activate!");
1308 gst_asf_demux_activate_stream (demux, stream);
1310 GST_LOG_OBJECT (stream->pad, "no data, ignoring stream");
1314 gst_asf_demux_release_old_pads (demux);
1316 demux->activated_streams = TRUE;
1317 GST_LOG_OBJECT (demux, "signalling no more pads");
1318 gst_element_no_more_pads (GST_ELEMENT (demux));
1322 /* returns the stream that has a complete payload with the lowest timestamp
1323 * queued, or NULL (we push things by timestamp because during the internal
1324 * prerolling we might accumulate more data then the external queues can take,
1325 * so we'd lock up if we pushed all accumulated data for stream N in one go) */
1327 gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
1329 AsfPayload *best_payload = NULL;
1330 AsfStream *best_stream = NULL;
1333 for (i = 0; i < demux->num_streams; ++i) {
1336 stream = &demux->stream[i];
1338 /* Don't push any data until we have at least one payload that falls within
1339 * the current segment. This way we can remove out-of-segment payloads that
1340 * don't need to be decoded after a seek, sending only data from the
1341 * keyframe directly before our segment start */
1342 if (stream->payloads->len > 0) {
1343 AsfPayload *payload;
1346 last_idx = stream->payloads->len - 1;
1347 payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1348 if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1349 (payload->ts < demux->segment.start))) {
1350 if (G_UNLIKELY ((!demux->accurate) && payload->keyframe)) {
1351 GST_DEBUG_OBJECT (stream->pad,
1352 "Found keyframe, updating segment start to %" GST_TIME_FORMAT,
1353 GST_TIME_ARGS (payload->ts));
1354 demux->segment.start = payload->ts;
1355 demux->segment.time = payload->ts;
1357 GST_DEBUG_OBJECT (stream->pad, "Last queued payload has timestamp %"
1358 GST_TIME_FORMAT " which is before our segment start %"
1359 GST_TIME_FORMAT ", not pushing yet", GST_TIME_ARGS (payload->ts),
1360 GST_TIME_ARGS (demux->segment.start));
1365 /* Now see if there's a complete payload queued for this stream */
1367 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1368 if (!gst_asf_payload_is_complete (payload))
1371 /* ... and whether its timestamp is lower than the current best */
1372 if (best_stream == NULL || best_payload->ts > payload->ts) {
1373 best_stream = stream;
1374 best_payload = payload;
1382 static GstFlowReturn
1383 gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
1386 GstFlowReturn ret = GST_FLOW_OK;
1388 if (G_UNLIKELY (!demux->activated_streams)) {
1389 if (!gst_asf_demux_check_activate_streams (demux, force))
1391 /* streams are now activated */
1394 /* wait until we had a chance to "lock on" some payload's timestamp */
1395 if (G_UNLIKELY (demux->need_newsegment
1396 && !GST_CLOCK_TIME_IS_VALID (demux->segment_ts)))
1399 while ((stream = gst_asf_demux_find_stream_with_complete_payload (demux))) {
1400 AsfPayload *payload;
1402 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1404 /* do we need to send a newsegment event */
1405 if ((G_UNLIKELY (demux->need_newsegment))) {
1407 /* safe default if insufficient upstream info */
1408 if (!GST_CLOCK_TIME_IS_VALID (demux->in_gap))
1411 if (demux->segment.stop == GST_CLOCK_TIME_NONE &&
1412 demux->segment.duration > 0) {
1413 /* slight HACK; prevent clipping of last bit */
1414 demux->segment.stop = demux->segment.duration + demux->in_gap;
1417 /* FIXME : only if ACCURATE ! */
1418 if (G_LIKELY (!demux->accurate
1419 && (GST_CLOCK_TIME_IS_VALID (payload->ts)))) {
1420 GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
1421 GST_TIME_ARGS (payload->ts));
1422 demux->segment.start = payload->ts;
1423 demux->segment.time = payload->ts;
1426 GST_DEBUG_OBJECT (demux, "sending new-segment event %" GST_SEGMENT_FORMAT,
1429 /* note: we fix up all timestamps to start from 0, so this should be ok */
1430 gst_asf_demux_send_event_unlocked (demux,
1431 gst_event_new_segment (&demux->segment));
1433 /* now post any global tags we may have found */
1434 if (demux->taglist == NULL)
1435 demux->taglist = gst_tag_list_new_empty ();
1437 gst_tag_list_add (demux->taglist, GST_TAG_MERGE_REPLACE,
1438 GST_TAG_CONTAINER_FORMAT, "ASF", NULL);
1440 GST_DEBUG_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, demux->taglist);
1441 gst_asf_demux_send_event_unlocked (demux,
1442 gst_event_new_tag ("GstDemuxer", demux->taglist));
1443 demux->taglist = NULL;
1445 demux->need_newsegment = FALSE;
1446 demux->segment_running = TRUE;
1449 /* Do we have tags pending for this stream? */
1450 if (G_UNLIKELY (stream->pending_tags)) {
1451 GST_LOG_OBJECT (stream->pad, "%" GST_PTR_FORMAT, stream->pending_tags);
1452 gst_pad_push_event (stream->pad,
1453 gst_event_new_tag ("GstDemuxer", stream->pending_tags));
1454 stream->pending_tags = NULL;
1457 /* We have the whole packet now so we should push the packet to
1458 * the src pad now. First though we should check if we need to do
1460 if (G_UNLIKELY (demux->span > 1)) {
1461 gst_asf_demux_descramble_buffer (demux, stream, &payload->buf);
1464 payload->buf = gst_buffer_make_writable (payload->buf);
1466 if (G_LIKELY (!payload->keyframe)) {
1467 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DELTA_UNIT);
1470 if (G_UNLIKELY (stream->discont)) {
1471 GST_DEBUG_OBJECT (stream->pad, "marking DISCONT on stream");
1472 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1473 stream->discont = FALSE;
1476 if (G_UNLIKELY (stream->is_video && payload->par_x && payload->par_y &&
1477 (payload->par_x != stream->par_x) &&
1478 (payload->par_y != stream->par_y))) {
1479 GST_DEBUG ("Updating PAR (%d/%d => %d/%d)",
1480 stream->par_x, stream->par_y, payload->par_x, payload->par_y);
1481 stream->par_x = payload->par_x;
1482 stream->par_y = payload->par_y;
1483 stream->caps = gst_caps_make_writable (stream->caps);
1484 gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
1485 GST_TYPE_FRACTION, stream->par_x, stream->par_y, NULL);
1486 gst_pad_set_caps (stream->pad, stream->caps);
1489 if (G_UNLIKELY (stream->interlaced != payload->interlaced)) {
1490 GST_DEBUG ("Updating interlaced status (%d => %d)", stream->interlaced,
1491 payload->interlaced);
1492 stream->interlaced = payload->interlaced;
1493 stream->caps = gst_caps_make_writable (stream->caps);
1494 gst_caps_set_simple (stream->caps, "interlace-mode", G_TYPE_BOOLEAN,
1495 (stream->interlaced ? "mixed" : "progressive"), NULL);
1496 gst_pad_set_caps (stream->pad, stream->caps);
1499 /* (sort of) interpolate timestamps using upstream "frame of reference",
1500 * typically useful for live src, but might (unavoidably) mess with
1501 * position reporting if a live src is playing not so live content
1502 * (e.g. rtspsrc taking some time to fall back to tcp) */
1503 GST_BUFFER_TIMESTAMP (payload->buf) = payload->ts + demux->in_gap;
1504 if (payload->duration == GST_CLOCK_TIME_NONE
1505 && stream->ext_props.avg_time_per_frame != 0)
1506 GST_BUFFER_DURATION (payload->buf) =
1507 stream->ext_props.avg_time_per_frame * 100;
1509 GST_BUFFER_DURATION (payload->buf) = payload->duration;
1511 /* FIXME: we should really set durations on buffers if we can */
1513 GST_LOG_OBJECT (stream->pad, "pushing buffer, ts=%" GST_TIME_FORMAT
1514 ", dur=%" GST_TIME_FORMAT " size=%" G_GSIZE_FORMAT,
1515 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (payload->buf)),
1516 GST_TIME_ARGS (GST_BUFFER_DURATION (payload->buf)),
1517 gst_buffer_get_size (payload->buf));
1519 ret = gst_pad_push (stream->pad, payload->buf);
1520 ret = gst_asf_demux_aggregate_flow_return (demux, stream, ret);
1521 payload->buf = NULL;
1522 g_array_remove_index (stream->payloads, 0);
1524 /* Break out as soon as we have an issue */
1525 if (G_UNLIKELY (ret != GST_FLOW_OK))
1533 gst_asf_demux_check_buffer_is_header (GstASFDemux * demux, GstBuffer * buf)
1537 g_assert (buf != NULL);
1539 GST_LOG_OBJECT (demux, "Checking if buffer is a header");
1541 gst_buffer_map (buf, &map, GST_MAP_READ);
1543 /* we return false on buffer too small */
1544 if (map.size < ASF_OBJECT_HEADER_SIZE) {
1545 gst_buffer_unmap (buf, &map);
1549 /* check if it is a header */
1550 asf_demux_peek_object (demux, map.data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
1551 gst_buffer_unmap (buf, &map);
1552 if (obj.id == ASF_OBJ_HEADER) {
1559 gst_asf_demux_check_chained_asf (GstASFDemux * demux)
1561 guint64 off = demux->data_offset + (demux->packet * demux->packet_size);
1562 GstFlowReturn ret = GST_FLOW_OK;
1563 GstBuffer *buf = NULL;
1564 gboolean header = FALSE;
1566 /* TODO maybe we should skip index objects after the data and look
1567 * further for a new header */
1568 if (gst_asf_demux_pull_data (demux, off, ASF_OBJECT_HEADER_SIZE, &buf, &ret)) {
1569 g_assert (buf != NULL);
1570 /* check if it is a header */
1571 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1572 GST_DEBUG_OBJECT (demux, "new base offset: %" G_GUINT64_FORMAT, off);
1573 demux->base_offset = off;
1577 gst_buffer_unref (buf);
1584 gst_asf_demux_loop (GstASFDemux * demux)
1586 GstFlowReturn flow = GST_FLOW_OK;
1587 GstBuffer *buf = NULL;
1589 gboolean sent_eos = FALSE;
1591 if (G_UNLIKELY (demux->state == GST_ASF_DEMUX_STATE_HEADER)) {
1592 if (!gst_asf_demux_pull_headers (demux)) {
1593 flow = GST_FLOW_ERROR;
1597 gst_asf_demux_pull_indices (demux);
1600 g_assert (demux->state == GST_ASF_DEMUX_STATE_DATA);
1602 if (G_UNLIKELY (demux->num_packets != 0
1603 && demux->packet >= demux->num_packets))
1606 GST_LOG_OBJECT (demux, "packet %u/%u", (guint) demux->packet + 1,
1607 (guint) demux->num_packets);
1609 off = demux->data_offset + (demux->packet * demux->packet_size);
1611 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, off,
1612 demux->packet_size * demux->speed_packets, &buf, &flow))) {
1613 GST_DEBUG_OBJECT (demux, "got flow %s", gst_flow_get_name (flow));
1614 if (flow == GST_FLOW_EOS)
1616 else if (flow == GST_FLOW_FLUSHING) {
1617 GST_DEBUG_OBJECT (demux, "Not fatal");
1623 if (G_LIKELY (demux->speed_packets == 1)) {
1624 GstAsfDemuxParsePacketError err;
1625 err = gst_asf_demux_parse_packet (demux, buf);
1626 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1627 /* when we don't know when the data object ends, we should check
1628 * for a chained asf */
1629 if (demux->num_packets == 0) {
1630 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1631 GST_INFO_OBJECT (demux, "Chained asf found");
1632 demux->base_offset = off;
1633 gst_asf_demux_reset (demux, TRUE);
1634 gst_buffer_unref (buf);
1638 /* FIXME: We should tally up fatal errors and error out only
1639 * after a few broken packets in a row? */
1641 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1642 gst_buffer_unref (buf);
1647 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1653 for (n = 0; n < demux->speed_packets; n++) {
1655 GstAsfDemuxParsePacketError err;
1658 gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL,
1659 n * demux->packet_size, demux->packet_size);
1660 err = gst_asf_demux_parse_packet (demux, sub);
1661 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1662 /* when we don't know when the data object ends, we should check
1663 * for a chained asf */
1664 if (demux->num_packets == 0) {
1665 if (gst_asf_demux_check_buffer_is_header (demux, sub)) {
1666 GST_INFO_OBJECT (demux, "Chained asf found");
1667 demux->base_offset = off + n * demux->packet_size;
1668 gst_asf_demux_reset (demux, TRUE);
1669 gst_buffer_unref (sub);
1670 gst_buffer_unref (buf);
1674 /* FIXME: We should tally up fatal errors and error out only
1675 * after a few broken packets in a row? */
1677 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1681 gst_buffer_unref (sub);
1683 if (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)
1684 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1690 /* reset speed pull */
1691 demux->speed_packets = 1;
1694 gst_buffer_unref (buf);
1696 if (G_UNLIKELY (demux->num_packets > 0
1697 && demux->packet >= demux->num_packets)) {
1698 GST_LOG_OBJECT (demux, "reached EOS");
1702 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1703 GST_DEBUG_OBJECT (demux, "pushing complete payloads failed");
1707 /* check if we're at the end of the configured segment */
1708 /* FIXME: check if segment end reached etc. */
1714 /* if we haven't activated our streams yet, this might be because we have
1715 * less data queued than required for preroll; force stream activation and
1716 * send any pending payloads before sending EOS */
1717 if (!demux->activated_streams)
1718 gst_asf_demux_push_complete_payloads (demux, TRUE);
1720 /* we want to push an eos or post a segment-done in any case */
1721 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1724 /* for segment playback we need to post when (in stream time)
1725 * we stopped, this is either stop (when set) or the duration. */
1726 if ((stop = demux->segment.stop) == -1)
1727 stop = demux->segment.duration;
1729 GST_INFO_OBJECT (demux, "Posting segment-done, at end of segment");
1730 gst_element_post_message (GST_ELEMENT_CAST (demux),
1731 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
1733 } else if (flow != GST_FLOW_EOS) {
1734 /* check if we have a chained asf, in case, we don't eos yet */
1735 if (gst_asf_demux_check_chained_asf (demux)) {
1736 GST_INFO_OBJECT (demux, "Chained ASF starting");
1737 gst_asf_demux_reset (demux, TRUE);
1741 /* normal playback, send EOS to all linked pads */
1742 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
1743 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1745 /* ... and fall through to pause */
1749 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
1750 gst_flow_get_name (flow));
1751 demux->segment_running = FALSE;
1752 gst_pad_pause_task (demux->sinkpad);
1754 /* For the error cases (not EOS) */
1756 if (flow == GST_FLOW_EOS)
1757 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1758 else if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
1759 /* Post an error. Hopefully something else already has, but if not... */
1760 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1761 (_("Internal data stream error.")),
1762 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
1771 GST_DEBUG_OBJECT (demux, "Read failed, doh");
1772 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1773 flow = GST_FLOW_EOS;
1777 /* See FIXMEs above */
1780 gst_buffer_unref (buf);
1781 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1782 ("Error parsing ASF packet %u", (guint) demux->packet));
1783 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1784 flow = GST_FLOW_ERROR;
1790 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
1791 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
1792 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
1795 gst_asf_demux_check_header (GstASFDemux * demux)
1798 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
1799 ASF_OBJECT_HEADER_SIZE);
1800 if (cdata == NULL) /* need more data */
1801 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
1803 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE);
1804 if (obj.id != ASF_OBJ_HEADER) {
1805 return GST_ASF_DEMUX_CHECK_HEADER_NO;
1807 return GST_ASF_DEMUX_CHECK_HEADER_YES;
1811 static GstFlowReturn
1812 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
1814 GstFlowReturn ret = GST_FLOW_OK;
1817 demux = GST_ASF_DEMUX (parent);
1819 GST_LOG_OBJECT (demux,
1820 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
1821 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
1822 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
1824 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
1825 GST_DEBUG_OBJECT (demux, "received DISCONT");
1826 gst_asf_demux_mark_discont (demux);
1829 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
1830 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
1831 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
1832 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
1833 ", interpolation gap: %" GST_TIME_FORMAT,
1834 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
1837 gst_adapter_push (demux->adapter, buf);
1839 switch (demux->state) {
1840 case GST_ASF_DEMUX_STATE_INDEX:{
1841 gint result = gst_asf_demux_check_header (demux);
1842 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
1845 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
1846 /* we don't care about this, probably an index */
1847 /* TODO maybe would be smarter to skip all the indices
1848 * until we got a new header or EOS to decide */
1849 GST_LOG_OBJECT (demux, "Received index object, its EOS");
1852 GST_INFO_OBJECT (demux, "Chained asf starting");
1853 /* cleanup and get ready for a chained asf */
1854 gst_asf_demux_reset (demux, TRUE);
1858 case GST_ASF_DEMUX_STATE_HEADER:{
1859 ret = gst_asf_demux_chain_headers (demux);
1860 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
1862 /* otherwise fall through */
1864 case GST_ASF_DEMUX_STATE_DATA:
1868 data_size = demux->packet_size;
1870 while (gst_adapter_available (demux->adapter) >= data_size) {
1872 GstAsfDemuxParsePacketError err;
1874 /* we don't know the length of the stream
1875 * check for a chained asf everytime */
1876 if (demux->num_packets == 0) {
1877 gint result = gst_asf_demux_check_header (demux);
1879 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
1880 GST_INFO_OBJECT (demux, "Chained asf starting");
1881 /* cleanup and get ready for a chained asf */
1882 gst_asf_demux_reset (demux, TRUE);
1885 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
1886 && demux->packet >= demux->num_packets)) {
1887 /* do not overshoot data section when streaming */
1891 buf = gst_adapter_take_buffer (demux->adapter, data_size);
1893 /* FIXME: We should tally up fatal errors and error out only
1894 * after a few broken packets in a row? */
1895 err = gst_asf_demux_parse_packet (demux, buf);
1897 gst_buffer_unref (buf);
1899 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
1900 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
1902 GST_WARNING_OBJECT (demux, "Parse error");
1904 if (demux->packet >= 0)
1907 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
1908 && demux->packet >= demux->num_packets)) {
1909 demux->state = GST_ASF_DEMUX_STATE_INDEX;
1914 g_assert_not_reached ();
1918 if (ret != GST_FLOW_OK)
1919 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
1925 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
1931 static inline gboolean
1932 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
1934 if (*p_size < num_bytes)
1937 *p_data += num_bytes;
1938 *p_size -= num_bytes;
1942 static inline guint8
1943 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
1947 g_assert (*p_size >= 1);
1948 ret = GST_READ_UINT8 (*p_data);
1949 *p_data += sizeof (guint8);
1950 *p_size -= sizeof (guint8);
1954 static inline guint16
1955 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
1959 g_assert (*p_size >= 2);
1960 ret = GST_READ_UINT16_LE (*p_data);
1961 *p_data += sizeof (guint16);
1962 *p_size -= sizeof (guint16);
1966 static inline guint32
1967 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
1971 g_assert (*p_size >= 4);
1972 ret = GST_READ_UINT32_LE (*p_data);
1973 *p_data += sizeof (guint32);
1974 *p_size -= sizeof (guint32);
1978 static inline guint64
1979 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
1983 g_assert (*p_size >= 8);
1984 ret = GST_READ_UINT64_LE (*p_data);
1985 *p_data += sizeof (guint64);
1986 *p_size -= sizeof (guint64);
1990 static inline guint32
1991 gst_asf_demux_get_var_length (guint8 type, guint8 ** p_data, guint64 * p_size)
1998 g_assert (*p_size >= 1);
1999 return gst_asf_demux_get_uint8 (p_data, p_size);
2002 g_assert (*p_size >= 2);
2003 return gst_asf_demux_get_uint16 (p_data, p_size);
2006 g_assert (*p_size >= 4);
2007 return gst_asf_demux_get_uint32 (p_data, p_size);
2010 g_assert_not_reached ();
2017 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2018 guint8 ** p_data, guint64 * p_size)
2022 if (*p_size < num_bytes_to_read)
2025 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2026 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2028 *p_data += num_bytes_to_read;
2029 *p_size -= num_bytes_to_read;
2035 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2036 guint8 ** p_data, guint64 * p_size)
2040 if (*p_size < num_bytes_to_read)
2043 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2044 *p_data += num_bytes_to_read;
2045 *p_size -= num_bytes_to_read;
2050 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2051 guint8 ** p_data, guint64 * p_size)
2061 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2064 *p_strlen = s_length;
2066 if (s_length == 0) {
2067 GST_WARNING ("zero-length string");
2068 *p_str = g_strdup ("");
2072 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2075 g_assert (s != NULL);
2077 /* just because They don't exist doesn't
2078 * mean They are not out to get you ... */
2079 if (s[s_length - 1] != '\0') {
2080 s = g_realloc (s, s_length + 1);
2084 *p_str = (gchar *) s;
2090 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2092 g_assert (*p_size >= 4 * sizeof (guint32));
2094 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2095 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2096 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2097 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2101 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2104 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2107 /* WAVEFORMATEX Structure */
2108 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2109 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2110 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2111 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2112 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2113 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2114 /* Codec specific data size */
2115 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2120 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2123 if (*p_size < (4 + 4 + 1 + 2))
2126 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2127 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2128 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2129 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2134 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2135 guint8 ** p_data, guint64 * p_size)
2137 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2140 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2141 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2142 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2143 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2144 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2145 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2146 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2147 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2148 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2149 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2150 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2155 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2159 for (i = 0; i < demux->num_streams; i++) {
2160 if (demux->stream[i].id == id)
2161 return &demux->stream[i];
2164 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2169 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2170 GstCaps * caps, guint16 id, gboolean is_video, GstTagList * tags)
2174 gst_pad_use_fixed_caps (src_pad);
2175 gst_pad_set_caps (src_pad, caps);
2177 gst_pad_set_event_function (src_pad,
2178 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2179 gst_pad_set_query_function (src_pad,
2180 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2182 stream = &demux->stream[demux->num_streams];
2183 stream->caps = caps;
2184 stream->pad = src_pad;
2186 stream->fps_known = !is_video; /* bit hacky for audio */
2187 stream->is_video = is_video;
2188 stream->pending_tags = tags;
2189 stream->discont = TRUE;
2193 st = gst_caps_get_structure (caps, 0);
2194 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2195 par_x > 0 && par_y > 0) {
2196 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2197 stream->par_x = par_x;
2198 stream->par_y = par_y;
2202 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2204 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2205 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2207 ++demux->num_streams;
2209 stream->active = FALSE;
2213 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2214 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2216 GstTagList *tags = NULL;
2217 GstBuffer *extradata = NULL;
2220 guint16 size_left = 0;
2221 gchar *codec_name = NULL;
2224 size_left = audio->size;
2226 /* Create the audio pad */
2227 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2229 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2232 /* Swallow up any left over data and set up the
2233 * standard properties from the header info */
2235 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2236 "codec specific data", size_left);
2238 g_assert (size_left <= *p_size);
2239 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2242 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2243 * additional two bytes indicating extradata. */
2244 /* FIXME: Handle the channel reorder map here */
2245 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2246 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2249 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2250 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2253 /* Informing about that audio format we just added */
2255 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2256 g_free (codec_name);
2260 gst_buffer_unref (extradata);
2262 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2263 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2264 audio->codec_tag, tags);
2266 ++demux->num_audio_streams;
2268 gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, tags);
2272 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2273 asf_stream_video_format * video, guint16 id,
2274 guint8 ** p_data, guint64 * p_size)
2276 GstTagList *tags = NULL;
2277 GstBuffer *extradata = NULL;
2281 gchar *codec_name = NULL;
2282 gint size_left = video->size - 40;
2284 /* Create the video pad */
2285 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2286 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2289 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2291 GST_LOG ("Video header has %d bytes of codec specific data", size_left);
2292 g_assert (size_left <= *p_size);
2293 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2296 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2298 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2299 caps = gst_riff_create_video_caps (video->tag, NULL,
2300 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2303 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2304 G_TYPE_UINT, video->tag, NULL);
2309 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2310 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2311 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2312 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2317 /* retry with the global metadata */
2318 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2319 demux->global_metadata);
2320 s = demux->global_metadata;
2321 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2322 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2323 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2324 if (ax > 0 && ay > 0)
2325 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2329 s = gst_caps_get_structure (caps, 0);
2330 gst_structure_remove_field (s, "framerate");
2333 /* add fourcc format to caps, some proprietary decoders seem to need it */
2334 gst_caps_set_simple (caps, "format", G_TYPE_UINT, video->tag, NULL);
2337 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2338 g_free (codec_name);
2342 gst_buffer_unref (extradata);
2344 GST_INFO ("Adding video stream #%u, id %u, codec %"
2345 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2346 GST_FOURCC_ARGS (video->tag), video->tag);
2348 ++demux->num_video_streams;
2350 gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE, tags);
2354 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2356 if (!stream->active) {
2357 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2358 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2359 gst_pad_set_active (stream->pad, TRUE);
2360 gst_pad_set_caps (stream->pad, stream->caps);
2361 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2362 stream->active = TRUE;
2367 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2370 AsfCorrectionType correction_type;
2371 AsfStreamType stream_type;
2372 GstClockTime time_offset;
2373 gboolean is_encrypted G_GNUC_UNUSED;
2377 guint stream_specific_size;
2378 guint type_specific_size G_GNUC_UNUSED;
2379 guint unknown G_GNUC_UNUSED;
2381 /* Get the rest of the header's header */
2382 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2383 goto not_enough_data;
2385 gst_asf_demux_get_guid (&guid, &data, &size);
2386 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2388 gst_asf_demux_get_guid (&guid, &data, &size);
2389 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2391 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2393 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2394 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2396 flags = gst_asf_demux_get_uint16 (&data, &size);
2397 stream_id = flags & 0x7f;
2398 is_encrypted = ! !((flags & 0x8000) << 15);
2399 unknown = gst_asf_demux_get_uint32 (&data, &size);
2401 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2402 stream_id, GST_TIME_ARGS (time_offset));
2404 switch (stream_type) {
2405 case ASF_STREAM_AUDIO:{
2406 asf_stream_audio audio_object;
2408 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2409 goto not_enough_data;
2411 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2414 gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2417 switch (correction_type) {
2418 case ASF_CORRECTION_ON:{
2419 guint span, packet_size, chunk_size, data_size, silence_data;
2421 GST_INFO ("Using error correction");
2423 if (size < (1 + 2 + 2 + 2 + 1))
2424 goto not_enough_data;
2426 span = gst_asf_demux_get_uint8 (&data, &size);
2427 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2428 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2429 data_size = gst_asf_demux_get_uint16 (&data, &size);
2430 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2432 /* FIXME: shouldn't this be per-stream? */
2435 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2436 packet_size, chunk_size, data_size, span, silence_data);
2438 if (demux->span > 1) {
2439 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2440 /* Disable descrambling */
2443 /* FIXME: this else branch was added for
2444 * weird_al_yankovic - the saga begins.asf */
2445 demux->ds_packet_size = packet_size;
2446 demux->ds_chunk_size = chunk_size;
2449 /* Descambling is enabled */
2450 demux->ds_packet_size = packet_size;
2451 demux->ds_chunk_size = chunk_size;
2454 /* Now skip the rest of the silence data */
2456 gst_bytestream_flush (demux->bs, data_size - 1);
2458 /* FIXME: CHECKME. And why -1? */
2459 if (data_size > 1) {
2460 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2461 goto not_enough_data;
2467 case ASF_CORRECTION_OFF:{
2468 GST_INFO ("Error correction off");
2469 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2470 goto not_enough_data;
2474 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2475 ("Audio stream using unknown error correction"));
2482 case ASF_STREAM_VIDEO:{
2483 asf_stream_video_format video_format_object;
2484 asf_stream_video video_object;
2487 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2488 goto not_enough_data;
2490 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2492 GST_INFO ("object is a video stream with %u bytes of "
2493 "additional data", vsize);
2495 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2497 goto not_enough_data;
2500 gst_asf_demux_add_video_stream (demux, &video_format_object, stream_id,
2507 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2512 return gst_asf_demux_get_stream (demux, stream_id);
2516 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2517 /* we'll error out later if we found no streams */
2522 static const gchar *
2523 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2527 const gchar *asf_name;
2528 const gchar *gst_name;
2531 "WM/Genre", GST_TAG_GENRE}, {
2532 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2533 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2534 "WM/Picture", GST_TAG_IMAGE}, {
2535 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2536 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2537 "WM/Year", GST_TAG_DATE}
2538 /* { "WM/Composer", GST_TAG_COMPOSER } */
2543 if (name_utf8 == NULL) {
2544 GST_WARNING ("Failed to convert name to UTF8, skipping");
2548 out = strlen (name_utf8);
2550 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2551 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2552 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2553 return tags[i].gst_name;
2560 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2562 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2566 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2568 if (taglist == NULL)
2571 if (gst_tag_list_is_empty (taglist)) {
2572 gst_tag_list_free (taglist);
2576 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2578 gst_tag_list_free (demux->taglist);
2579 gst_tag_list_free (taglist);
2581 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2584 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2585 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2586 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2589 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2593 const guint8 *img_data = NULL;
2594 guint32 img_data_len = 0;
2595 guint8 pic_type = 0;
2597 gst_byte_reader_init (&r, tag_data, tag_data_len);
2599 /* skip mime type string (we don't trust it and do our own typefinding),
2600 * and also skip the description string, since we don't use it */
2601 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
2602 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
2603 !gst_byte_reader_skip_string_utf16 (&r) ||
2604 !gst_byte_reader_skip_string_utf16 (&r) ||
2605 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
2606 goto not_enough_data;
2610 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
2611 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
2617 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
2618 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
2623 /* Extended Content Description Object */
2624 static GstFlowReturn
2625 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
2628 /* Other known (and unused) 'text/unicode' metadata available :
2631 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
2632 * WMFSDKVersion = 9.00.00.2980
2633 * WMFSDKNeeded = 0.0.0.0000
2634 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
2635 * WM/Publisher = 4AD
2637 * WM/ProviderRating = 8
2638 * WM/ProviderStyle = Rock (similar to WM/Genre)
2639 * WM/GenreID (similar to WM/Genre)
2640 * WM/TrackNumber (same as WM/Track but as a string)
2642 * Other known (and unused) 'non-text' metadata available :
2648 * We might want to read WM/TrackNumber and use atoi() if we don't have
2652 GstTagList *taglist;
2653 guint16 blockcount, i;
2655 GST_INFO_OBJECT (demux, "object is an extended content description");
2657 taglist = gst_tag_list_new_empty ();
2659 /* Content Descriptor Count */
2661 goto not_enough_data;
2663 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2665 for (i = 1; i <= blockcount; ++i) {
2666 const gchar *gst_tag_name;
2670 GValue tag_value = { 0, };
2673 gchar *name_utf8 = NULL;
2677 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
2678 goto not_enough_data;
2682 goto not_enough_data;
2684 /* Descriptor Value Data Type */
2685 datatype = gst_asf_demux_get_uint16 (&data, &size);
2687 /* Descriptor Value (not really a string, but same thing reading-wise) */
2688 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
2690 goto not_enough_data;
2694 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
2696 if (name_utf8 != NULL) {
2697 GST_DEBUG ("Found tag/metadata %s", name_utf8);
2699 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
2700 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
2703 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
2706 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
2709 /* get rid of tags with empty value */
2710 if (value_utf8 != NULL && *value_utf8 != '\0') {
2711 GST_DEBUG ("string value %s", value_utf8);
2713 value_utf8[out] = '\0';
2715 if (gst_tag_name != NULL) {
2716 if (strcmp (gst_tag_name, GST_TAG_DATE) == 0) {
2717 guint year = atoi (value_utf8);
2720 /* FIXME: really want a GDateTime with just the year field */
2721 g_value_init (&tag_value, G_TYPE_DATE);
2722 g_value_take_boxed (&tag_value, g_date_new_dmy (1, 1, year));
2724 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
2725 guint id3v1_genre_id;
2726 const gchar *genre_str;
2728 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
2729 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
2730 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
2731 g_free (value_utf8);
2732 value_utf8 = g_strdup (genre_str);
2737 /* convert tag from string to other type if required */
2738 tag_type = gst_tag_get_type (gst_tag_name);
2739 g_value_init (&tag_value, tag_type);
2740 if (!gst_value_deserialize (&tag_value, value_utf8)) {
2741 GValue from_val = { 0, };
2743 g_value_init (&from_val, G_TYPE_STRING);
2744 g_value_set_string (&from_val, value_utf8);
2745 if (!g_value_transform (&from_val, &tag_value)) {
2746 GST_WARNING_OBJECT (demux,
2747 "Could not transform string tag to " "%s tag type %s",
2748 gst_tag_name, g_type_name (tag_type));
2749 g_value_unset (&tag_value);
2751 g_value_unset (&from_val);
2756 GST_DEBUG ("Setting metadata");
2757 g_value_init (&tag_value, G_TYPE_STRING);
2758 g_value_set_string (&tag_value, value_utf8);
2760 } else if (value_utf8 == NULL) {
2761 GST_WARNING ("Failed to convert string value to UTF8, skipping");
2763 GST_DEBUG ("Skipping empty string value for %s",
2764 GST_STR_NULL (gst_tag_name));
2766 g_free (value_utf8);
2769 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
2771 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
2772 GST_FIXME ("Unhandled byte array tag %s",
2773 GST_STR_NULL (gst_tag_name));
2776 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
2782 case ASF_DEMUX_DATA_TYPE_DWORD:{
2783 guint uint_val = GST_READ_UINT32_LE (value);
2785 /* this is the track number */
2786 g_value_init (&tag_value, G_TYPE_UINT);
2788 /* WM/Track counts from 0 */
2789 if (!strcmp (name_utf8, "WM/Track"))
2792 g_value_set_uint (&tag_value, uint_val);
2796 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
2801 if (G_IS_VALUE (&tag_value)) {
2803 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
2805 /* WM/TrackNumber is more reliable than WM/Track, since the latter
2806 * is supposed to have a 0 base but is often wrongly written to start
2807 * from 1 as well, so prefer WM/TrackNumber when we have it: either
2808 * replace the value added earlier from WM/Track or put it first in
2809 * the list, so that it will get picked up by _get_uint() */
2810 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
2811 merge_mode = GST_TAG_MERGE_REPLACE;
2813 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
2816 GST_DEBUG ("Setting global metadata %s", name_utf8);
2817 gst_structure_set_value (demux->global_metadata, name_utf8,
2821 g_value_unset (&tag_value);
2830 gst_asf_demux_add_global_tags (demux, taglist);
2837 GST_WARNING ("Unexpected end of data parsing ext content desc object");
2838 gst_tag_list_free (taglist);
2839 return GST_FLOW_OK; /* not really fatal */
2843 static GstStructure *
2844 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
2849 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
2851 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
2854 s = gst_caps_get_structure (demux->metadata, i);
2855 if (gst_structure_has_name (s, sname))
2859 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
2861 /* try lookup again; demux->metadata took ownership of the structure, so we
2862 * can't really make any assumptions about what happened to it, so we can't
2863 * just return it directly after appending it */
2864 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
2867 static GstFlowReturn
2868 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
2871 guint16 blockcount, i;
2873 GST_INFO_OBJECT (demux, "object is a metadata object");
2875 /* Content Descriptor Count */
2877 goto not_enough_data;
2879 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2881 for (i = 0; i < blockcount; ++i) {
2883 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
2884 guint32 data_len, ival;
2887 if (size < (2 + 2 + 2 + 2 + 4))
2888 goto not_enough_data;
2890 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
2891 stream_num = gst_asf_demux_get_uint16 (&data, &size);
2892 name_len = gst_asf_demux_get_uint16 (&data, &size);
2893 data_type = gst_asf_demux_get_uint16 (&data, &size);
2894 data_len = gst_asf_demux_get_uint32 (&data, &size);
2896 if (size < name_len + data_len)
2897 goto not_enough_data;
2899 /* convert name to UTF-8 */
2900 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
2902 gst_asf_demux_skip_bytes (name_len, &data, &size);
2904 if (name_utf8 == NULL) {
2905 GST_WARNING ("Failed to convert value name to UTF8, skipping");
2906 gst_asf_demux_skip_bytes (data_len, &data, &size);
2910 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
2911 gst_asf_demux_skip_bytes (data_len, &data, &size);
2919 goto not_enough_data;
2922 ival = gst_asf_demux_get_uint32 (&data, &size);
2924 /* skip anything else there may be, just in case */
2925 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
2927 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
2928 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
2932 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
2938 GST_WARNING ("Unexpected end of data parsing metadata object");
2939 return GST_FLOW_OK; /* not really fatal */
2943 static GstFlowReturn
2944 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
2946 GstFlowReturn ret = GST_FLOW_OK;
2947 guint32 i, num_objects;
2948 guint8 unknown G_GNUC_UNUSED;
2950 /* Get the rest of the header's header */
2951 if (size < (4 + 1 + 1))
2952 goto not_enough_data;
2954 num_objects = gst_asf_demux_get_uint32 (&data, &size);
2955 unknown = gst_asf_demux_get_uint8 (&data, &size);
2956 unknown = gst_asf_demux_get_uint8 (&data, &size);
2958 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
2960 /* Loop through the header's objects, processing those */
2961 for (i = 0; i < num_objects; ++i) {
2962 GST_INFO_OBJECT (demux, "reading header part %u", i);
2963 ret = gst_asf_demux_process_object (demux, &data, &size);
2964 if (ret != GST_FLOW_OK) {
2965 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
2974 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2975 ("short read parsing HEADER object"));
2976 return GST_FLOW_ERROR;
2980 static GstFlowReturn
2981 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
2983 guint64 creation_time G_GNUC_UNUSED;
2984 guint64 file_size G_GNUC_UNUSED;
2985 guint64 send_time G_GNUC_UNUSED;
2986 guint64 packets_count, play_time, preroll;
2987 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
2989 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
2990 goto not_enough_data;
2992 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
2993 file_size = gst_asf_demux_get_uint64 (&data, &size);
2994 creation_time = gst_asf_demux_get_uint64 (&data, &size);
2995 packets_count = gst_asf_demux_get_uint64 (&data, &size);
2996 play_time = gst_asf_demux_get_uint64 (&data, &size);
2997 send_time = gst_asf_demux_get_uint64 (&data, &size);
2998 preroll = gst_asf_demux_get_uint64 (&data, &size);
2999 flags = gst_asf_demux_get_uint32 (&data, &size);
3000 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3001 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3002 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3004 demux->broadcast = ! !(flags & 0x01);
3005 demux->seekable = ! !(flags & 0x02);
3007 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3008 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3009 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3011 if (demux->broadcast) {
3012 /* these fields are invalid if the broadcast flag is set */
3017 if (min_pktsize != max_pktsize)
3018 goto non_fixed_packet_size;
3020 demux->packet_size = max_pktsize;
3022 /* FIXME: do we need send_time as well? what is it? */
3023 if ((play_time * 100) >= (preroll * GST_MSECOND))
3024 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3026 demux->play_time = 0;
3028 demux->preroll = preroll * GST_MSECOND;
3030 /* initial latency */
3031 demux->latency = demux->preroll;
3033 if (demux->play_time == 0)
3034 demux->seekable = FALSE;
3036 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3037 GST_TIME_ARGS (demux->play_time));
3038 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3039 GST_TIME_ARGS (demux->preroll));
3041 if (demux->play_time > 0) {
3042 demux->segment.duration = demux->play_time;
3045 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3047 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3052 non_fixed_packet_size:
3054 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3055 ("packet size must be fixed"));
3056 return GST_FLOW_ERROR;
3060 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3061 ("short read parsing FILE object"));
3062 return GST_FLOW_ERROR;
3066 /* Content Description Object */
3067 static GstFlowReturn
3068 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3072 const gchar *gst_tag;
3077 GST_TAG_TITLE, 0, NULL}, {
3078 GST_TAG_ARTIST, 0, NULL}, {
3079 GST_TAG_COPYRIGHT, 0, NULL}, {
3080 GST_TAG_DESCRIPTION, 0, NULL}, {
3081 GST_TAG_COMMENT, 0, NULL}
3083 GstTagList *taglist;
3084 GValue value = { 0 };
3088 GST_INFO_OBJECT (demux, "object is a comment");
3090 if (size < (2 + 2 + 2 + 2 + 2))
3091 goto not_enough_data;
3093 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3094 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3095 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3096 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3097 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3099 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3100 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3101 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3103 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3104 if (size < tags[i].val_length)
3105 goto not_enough_data;
3107 /* might be just '/0', '/0'... */
3108 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3109 /* convert to UTF-8 */
3110 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3111 "UTF-8", "UTF-16LE", &in, &out, NULL);
3113 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3116 /* parse metadata into taglist */
3117 taglist = gst_tag_list_new_empty ();
3118 g_value_init (&value, G_TYPE_STRING);
3119 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3120 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3121 g_value_set_string (&value, tags[i].val_utf8);
3122 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3123 tags[i].gst_tag, &value, NULL);
3126 g_value_unset (&value);
3128 gst_asf_demux_add_global_tags (demux, taglist);
3130 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3131 g_free (tags[i].val_utf8);
3137 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3138 "comment tag section %d, skipping comment object", i);
3139 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3140 g_free (tags[i].val_utf8);
3141 return GST_FLOW_OK; /* not really fatal */
3145 static GstFlowReturn
3146 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3149 guint16 num_streams, i;
3153 goto not_enough_data;
3155 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3157 GST_INFO ("object is a bitrate properties object with %u streams",
3160 if (size < (num_streams * (2 + 4)))
3161 goto not_enough_data;
3163 for (i = 0; i < num_streams; ++i) {
3167 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3168 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3170 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3171 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3172 stream = gst_asf_demux_get_stream (demux, stream_id);
3174 if (stream->pending_tags == NULL) {
3175 stream->pending_tags =
3176 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3179 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3182 GST_WARNING ("stream id %u is too large", stream_id);
3190 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3191 return GST_FLOW_OK; /* not really fatal */
3195 static GstFlowReturn
3196 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3199 GstFlowReturn ret = GST_FLOW_OK;
3202 /* Get the rest of the header's header */
3203 if (size < (16 + 2 + 4))
3204 goto not_enough_data;
3206 /* skip GUID and two other bytes */
3207 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3208 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3210 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3212 /* FIXME: does data_size include the rest of the header that we have read? */
3213 if (hdr_size > size)
3214 goto not_enough_data;
3216 while (hdr_size > 0) {
3217 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3218 if (ret != GST_FLOW_OK)
3226 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3227 ("short read parsing extended header object"));
3228 return GST_FLOW_ERROR;
3232 static GstFlowReturn
3233 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3239 goto not_enough_data;
3241 if (demux->languages) {
3242 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3243 g_strfreev (demux->languages);
3244 demux->languages = NULL;
3245 demux->num_languages = 0;
3248 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3249 GST_LOG ("%u languages:", demux->num_languages);
3251 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3252 for (i = 0; i < demux->num_languages; ++i) {
3253 guint8 len, *lang_data = NULL;
3256 goto not_enough_data;
3257 len = gst_asf_demux_get_uint8 (&data, &size);
3258 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3261 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3264 /* truncate "en-us" etc. to just "en" */
3265 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3268 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3269 demux->languages[i] = utf8;
3272 goto not_enough_data;
3280 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3281 g_free (demux->languages);
3282 demux->languages = NULL;
3283 return GST_FLOW_OK; /* not fatal */
3287 static GstFlowReturn
3288 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3291 GstClockTime interval;
3294 if (size < (16 + 8 + 4 + 4))
3295 goto not_enough_data;
3298 gst_asf_demux_skip_bytes (16, &data, &size);
3299 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3300 gst_asf_demux_skip_bytes (4, &data, &size);
3301 count = gst_asf_demux_get_uint32 (&data, &size);
3303 demux->sidx_interval = interval;
3304 demux->sidx_num_entries = count;
3305 g_free (demux->sidx_entries);
3306 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3308 for (i = 0; i < count; ++i) {
3309 if (G_UNLIKELY (size <= 6))
3311 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3312 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3313 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3314 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3315 demux->sidx_entries[i].count);
3318 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3325 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3326 return GST_FLOW_OK; /* not fatal */
3330 static GstFlowReturn
3331 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3332 guint8 * data, guint64 size)
3338 if (size < 16 + 2 + (2 * 2))
3339 goto not_enough_data;
3341 gst_asf_demux_get_guid (&guid, &data, &size);
3342 num = gst_asf_demux_get_uint16 (&data, &size);
3345 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3349 if (size < (num * sizeof (guint16)))
3350 goto not_enough_data;
3352 /* read mutually exclusive stream numbers */
3353 mes = g_new (guint8, num + 1);
3354 for (i = 0; i < num; ++i) {
3355 mes[i] = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3356 GST_LOG_OBJECT (demux, "mutually exclusive: stream #%d", mes[i]);
3359 /* add terminator so we can easily get the count or know when to stop */
3360 mes[i] = (guint8) - 1;
3362 demux->mut_ex_streams = g_slist_append (demux->mut_ex_streams, mes);
3369 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3370 return GST_FLOW_OK; /* not absolutely fatal */
3374 static GstFlowReturn
3375 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3378 AsfStreamExtProps esp;
3379 AsfStream *stream = NULL;
3380 AsfObject stream_obj;
3381 guint16 stream_name_count;
3382 guint16 num_payload_ext;
3384 guint8 *stream_obj_data = NULL;
3387 guint i, stream_num;
3390 obj_size = (guint) size;
3393 goto not_enough_data;
3396 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3397 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3398 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3399 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3400 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3401 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3402 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3403 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3404 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3405 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3406 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3407 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3408 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3409 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3410 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3412 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3413 GST_TIME_ARGS (esp.start_time));
3414 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3415 GST_TIME_ARGS (esp.end_time));
3416 GST_INFO ("flags = %08x", esp.flags);
3417 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3418 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3419 GST_INFO ("stream number = %u", stream_num);
3420 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3421 (esp.lang_idx < demux->num_languages) ?
3422 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3423 GST_INFO ("stream name count = %u", stream_name_count);
3425 /* read stream names */
3426 for (i = 0; i < stream_name_count; ++i) {
3427 guint16 stream_lang_idx G_GNUC_UNUSED;
3428 gchar *stream_name = NULL;
3431 goto not_enough_data;
3432 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3433 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3434 goto not_enough_data;
3435 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3436 g_free (stream_name); /* TODO: store names in struct */
3439 /* read payload extension systems stuff */
3440 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3442 if (num_payload_ext > 0)
3443 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3445 esp.payload_extensions = NULL;
3447 for (i = 0; i < num_payload_ext; ++i) {
3448 AsfPayloadExtension ext;
3450 guint32 sys_info_len;
3452 if (size < 16 + 2 + 4)
3453 goto not_enough_data;
3455 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3456 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3457 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3459 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3460 GST_LOG ("payload systems info len = %u", sys_info_len);
3461 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3462 goto not_enough_data;
3464 esp.payload_extensions[i] = ext;
3467 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3469 /* there might be an optional STREAM_INFO object here now; if not, we
3470 * should have parsed the corresponding stream info object already (since
3471 * we are parsing the extended stream properties objects delayed) */
3473 stream = gst_asf_demux_get_stream (demux, stream_num);
3477 /* get size of the stream object */
3478 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3479 goto not_enough_data;
3481 if (stream_obj.id != ASF_OBJ_STREAM)
3482 goto expected_stream_object;
3484 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3485 stream_obj.size > (10 * 1024 * 1024))
3486 goto not_enough_data;
3488 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3490 /* process this stream object later after all the other 'normal' ones
3491 * have been processed (since the others are more important/non-hidden) */
3492 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3493 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3494 goto not_enough_data;
3496 /* parse stream object */
3497 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3498 g_free (stream_obj_data);
3503 stream->ext_props = esp;
3505 /* try to set the framerate */
3506 if (stream->is_video && stream->caps) {
3507 GValue framerate = { 0 };
3511 g_value_init (&framerate, GST_TYPE_FRACTION);
3513 num = GST_SECOND / 100;
3514 denom = esp.avg_time_per_frame;
3516 /* avoid division by 0, assume 25/1 framerate */
3517 denom = GST_SECOND / 2500;
3520 gst_value_set_fraction (&framerate, num, denom);
3522 stream->caps = gst_caps_make_writable (stream->caps);
3523 s = gst_caps_get_structure (stream->caps, 0);
3524 gst_structure_set_value (s, "framerate", &framerate);
3525 g_value_unset (&framerate);
3526 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3527 num, denom, ((gdouble) num) / denom);
3530 /* add language info now if we have it */
3531 if (stream->ext_props.lang_idx < demux->num_languages) {
3532 if (stream->pending_tags == NULL)
3533 stream->pending_tags = gst_tag_list_new_empty ();
3534 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3535 demux->languages[stream->ext_props.lang_idx]);
3536 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3537 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
3541 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
3549 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
3550 return GST_FLOW_OK; /* not absolutely fatal */
3552 expected_stream_object:
3554 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
3555 "object: expected embedded stream object, but got %s object instead!",
3556 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
3557 return GST_FLOW_OK; /* not absolutely fatal */
3561 static const gchar *
3562 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
3566 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
3567 if (g_str_has_prefix (nick, "ASF_OBJ_"))
3568 nick += strlen ("ASF_OBJ_");
3570 if (demux->objpath == NULL) {
3571 demux->objpath = g_strdup (nick);
3575 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
3576 g_free (demux->objpath);
3577 demux->objpath = newpath;
3580 return (const gchar *) demux->objpath;
3584 gst_asf_demux_pop_obj (GstASFDemux * demux)
3588 if ((s = g_strrstr (demux->objpath, "/"))) {
3591 g_free (demux->objpath);
3592 demux->objpath = NULL;
3597 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
3602 /* Parse the queued extended stream property objects and add the info
3603 * to the existing streams or add the new embedded streams, but without
3604 * activating them yet */
3605 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
3606 g_slist_length (demux->ext_stream_props));
3608 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
3609 GstBuffer *buf = GST_BUFFER (l->data);
3612 gst_buffer_map (buf, &map, GST_MAP_READ);
3614 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
3615 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
3616 gst_buffer_unmap (buf, &map);
3617 gst_buffer_unref (buf);
3619 g_slist_free (demux->ext_stream_props);
3620 demux->ext_stream_props = NULL;
3625 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
3629 for (i = 0; i < demux->num_streams; ++i) {
3634 stream = &demux->stream[i];
3636 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
3638 if (stream->active) {
3639 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
3644 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
3647 /* check for each mutual exclusion whether it affects this stream */
3648 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3649 if (*mes == stream->id) {
3650 /* if yes, check if we've already added streams that are mutually
3651 * exclusive with the stream we're about to add */
3652 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3653 for (j = 0; j < demux->num_streams; ++j) {
3654 /* if the broadcast flag is set, assume the hidden streams aren't
3655 * actually streamed and hide them (or playbin won't work right),
3656 * otherwise assume their data is available */
3657 if (demux->stream[j].id == *mes && demux->broadcast) {
3659 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
3660 "mutually exclusive with already existing stream ID %d, "
3661 "hiding stream", stream->id, demux->stream[j].id);
3673 /* FIXME: we should do stream activation based on preroll data in
3674 * streaming mode too */
3675 if (demux->streaming && !is_hidden)
3676 gst_asf_demux_activate_stream (demux, stream);
3681 static GstFlowReturn
3682 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
3685 GstFlowReturn ret = GST_FLOW_OK;
3687 guint64 obj_data_size;
3689 if (*p_size < ASF_OBJECT_HEADER_SIZE)
3690 return ASF_FLOW_NEED_MORE_DATA;
3692 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
3693 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
3695 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
3697 if (*p_size < obj_data_size)
3698 return ASF_FLOW_NEED_MORE_DATA;
3700 gst_asf_demux_push_obj (demux, obj.id);
3702 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
3705 case ASF_OBJ_STREAM:
3706 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
3710 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
3712 case ASF_OBJ_HEADER:
3713 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
3715 case ASF_OBJ_COMMENT:
3716 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
3719 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
3721 case ASF_OBJ_BITRATE_PROPS:
3723 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
3726 case ASF_OBJ_EXT_CONTENT_DESC:
3728 gst_asf_demux_process_ext_content_desc (demux, *p_data,
3731 case ASF_OBJ_METADATA_OBJECT:
3732 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
3734 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
3737 /* process these later, we might not have parsed the corresponding
3738 * stream object yet */
3739 GST_LOG ("%s: queued for later parsing", demux->objpath);
3740 buf = gst_buffer_new_and_alloc (obj_data_size);
3741 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
3742 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
3746 case ASF_OBJ_LANGUAGE_LIST:
3747 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
3749 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
3750 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
3753 case ASF_OBJ_SIMPLE_INDEX:
3754 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
3756 case ASF_OBJ_CONTENT_ENCRYPTION:
3757 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
3758 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
3759 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
3760 goto error_encrypted;
3761 case ASF_OBJ_CONCEAL_NONE:
3763 case ASF_OBJ_UNDEFINED:
3764 case ASF_OBJ_CODEC_COMMENT:
3766 case ASF_OBJ_PADDING:
3767 case ASF_OBJ_BITRATE_MUTEX:
3768 case ASF_OBJ_COMPATIBILITY:
3769 case ASF_OBJ_INDEX_PLACEHOLDER:
3770 case ASF_OBJ_INDEX_PARAMETERS:
3771 case ASF_OBJ_STREAM_PRIORITIZATION:
3772 case ASF_OBJ_SCRIPT_COMMAND:
3774 /* Unknown/unhandled object, skip it and hope for the best */
3775 GST_INFO ("%s: skipping object", demux->objpath);
3780 /* this can't fail, we checked the number of bytes available before */
3781 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
3783 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
3785 gst_asf_demux_pop_obj (demux);
3792 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
3793 return GST_FLOW_ERROR;
3798 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
3799 GstBuffer ** p_buffer)
3801 GstBuffer *descrambled_buffer;
3802 GstBuffer *scrambled_buffer;
3803 GstBuffer *sub_buffer;
3810 /* descrambled_buffer is initialised in the first iteration */
3811 descrambled_buffer = NULL;
3812 scrambled_buffer = *p_buffer;
3814 if (gst_buffer_get_size (scrambled_buffer) <
3815 demux->ds_packet_size * demux->span)
3818 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
3819 offset += demux->ds_chunk_size) {
3820 off = offset / demux->ds_chunk_size;
3821 row = off / demux->span;
3822 col = off % demux->span;
3823 idx = row + col * demux->ds_packet_size / demux->ds_chunk_size;
3824 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
3825 col, off, demux->ds_chunk_size);
3826 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
3827 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
3828 demux->span, demux->ds_packet_size);
3829 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
3830 gst_buffer_get_size (scrambled_buffer));
3832 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_NONE,
3833 idx * demux->ds_chunk_size, demux->ds_chunk_size);
3835 descrambled_buffer = sub_buffer;
3837 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
3841 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
3842 GST_BUFFER_TIMESTAMP (scrambled_buffer);
3843 GST_BUFFER_DURATION (descrambled_buffer) =
3844 GST_BUFFER_DURATION (scrambled_buffer);
3845 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
3846 GST_BUFFER_OFFSET_END (descrambled_buffer) =
3847 GST_BUFFER_OFFSET_END (scrambled_buffer);
3849 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
3851 gst_buffer_unref (scrambled_buffer);
3852 *p_buffer = descrambled_buffer;
3856 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
3858 GstASFDemux *demux = GST_ASF_DEMUX (element);
3861 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
3863 for (i = 0; i < demux->num_streams; ++i) {
3864 gst_event_ref (event);
3865 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
3866 GST_OBJECT_CAST (element), event)) {
3867 gst_event_unref (event);
3872 gst_event_unref (event);
3876 /* takes ownership of the passed event */
3878 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
3880 gboolean ret = TRUE;
3883 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
3884 GST_EVENT_TYPE_NAME (event));
3886 for (i = 0; i < demux->num_streams; ++i) {
3887 gst_event_ref (event);
3888 ret &= gst_pad_push_event (demux->stream[i].pad, event);
3890 gst_event_unref (event);
3895 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
3899 gboolean res = FALSE;
3901 demux = GST_ASF_DEMUX (parent);
3903 GST_DEBUG ("handling %s query",
3904 gst_query_type_get_name (GST_QUERY_TYPE (query)));
3906 switch (GST_QUERY_TYPE (query)) {
3907 case GST_QUERY_DURATION:
3911 gst_query_parse_duration (query, &format, NULL);
3913 if (format != GST_FORMAT_TIME) {
3914 GST_LOG ("only support duration queries in TIME format");
3918 GST_OBJECT_LOCK (demux);
3920 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
3921 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
3922 GST_TIME_ARGS (demux->segment.duration));
3924 gst_query_set_duration (query, GST_FORMAT_TIME,
3925 demux->segment.duration);
3929 GST_LOG ("duration not known yet");
3932 GST_OBJECT_UNLOCK (demux);
3936 case GST_QUERY_POSITION:{
3939 gst_query_parse_position (query, &format, NULL);
3941 if (format != GST_FORMAT_TIME) {
3942 GST_LOG ("only support position queries in TIME format");
3946 GST_OBJECT_LOCK (demux);
3948 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
3949 GST_LOG ("returning position: %" GST_TIME_FORMAT,
3950 GST_TIME_ARGS (demux->segment.position));
3952 gst_query_set_position (query, GST_FORMAT_TIME,
3953 demux->segment.position);
3957 GST_LOG ("position not known yet");
3960 GST_OBJECT_UNLOCK (demux);
3964 case GST_QUERY_SEEKING:{
3967 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
3968 if (format == GST_FORMAT_TIME) {
3971 GST_OBJECT_LOCK (demux);
3972 duration = demux->segment.duration;
3973 GST_OBJECT_UNLOCK (demux);
3975 if (!demux->streaming || !demux->seekable) {
3976 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
3983 /* try downstream first in TIME */
3984 res = gst_pad_query_default (pad, parent, query);
3986 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
3987 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
3988 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
3989 /* if no luck, maybe in BYTES */
3990 if (!seekable || fmt != GST_FORMAT_TIME) {
3993 q = gst_query_new_seeking (GST_FORMAT_BYTES);
3994 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
3995 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
3996 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
3997 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
3998 if (fmt != GST_FORMAT_BYTES)
4001 gst_query_unref (q);
4002 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4008 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4012 case GST_QUERY_LATENCY:
4015 GstClockTime min, max;
4017 /* preroll delay does not matter in non-live pipeline,
4018 * but we might end up in a live (rtsp) one ... */
4021 res = gst_pad_query_default (pad, parent, query);
4025 gst_query_parse_latency (query, &live, &min, &max);
4027 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4028 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4029 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4031 GST_OBJECT_LOCK (demux);
4033 min += demux->latency;
4035 max += demux->latency;
4036 GST_OBJECT_UNLOCK (demux);
4038 gst_query_set_latency (query, live, min, max);
4042 res = gst_pad_query_default (pad, parent, query);
4049 static GstStateChangeReturn
4050 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4052 GstASFDemux *demux = GST_ASF_DEMUX (element);
4053 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4055 switch (transition) {
4056 case GST_STATE_CHANGE_NULL_TO_READY:{
4057 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4058 demux->need_newsegment = TRUE;
4059 demux->segment_running = FALSE;
4060 demux->accurate = FALSE;
4061 demux->adapter = gst_adapter_new ();
4062 demux->metadata = gst_caps_new_empty ();
4063 demux->global_metadata = gst_structure_new_empty ("metadata");
4064 demux->data_size = 0;
4065 demux->data_offset = 0;
4066 demux->index_offset = 0;
4067 demux->base_offset = 0;
4074 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4075 if (ret == GST_STATE_CHANGE_FAILURE)
4078 switch (transition) {
4079 case GST_STATE_CHANGE_PAUSED_TO_READY:
4080 case GST_STATE_CHANGE_READY_TO_NULL:
4081 gst_asf_demux_reset (demux, FALSE);