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 (stop_type != GST_SEEK_TYPE_SET || GST_CLOCK_TIME_IS_VALID (stop))) {
649 GST_LOG_OBJECT (demux, "streaming; end position must be NONE");
652 gst_event_ref (event);
653 /* upstream might handle TIME seek, e.g. mms or rtsp,
654 * or not, e.g. http, then we give it a hand */
655 if (!gst_pad_push_event (demux->sinkpad, event))
656 return gst_asf_demux_handle_seek_push (demux, event);
661 /* unlock the streaming thread */
662 if (G_LIKELY (flush)) {
663 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
664 gst_asf_demux_send_event_unlocked (demux, gst_event_new_flush_start ());
666 gst_pad_pause_task (demux->sinkpad);
669 /* grab the stream lock so that streaming cannot continue, for
670 * non flushing seeks when the element is in PAUSED this could block
672 GST_PAD_STREAM_LOCK (demux->sinkpad);
674 /* we now can stop flushing, since we have the stream lock now */
675 gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop (TRUE));
677 if (G_LIKELY (flush))
678 gst_asf_demux_send_event_unlocked (demux, gst_event_new_flush_stop (TRUE));
680 /* operating on copy of segment until we know the seek worked */
681 segment = demux->segment;
683 if (G_UNLIKELY (demux->segment_running && !flush)) {
684 GstSegment newsegment;
687 /* create the segment event to close the current segment */
688 gst_segment_copy_into (&segment, &newsegment);
689 newseg = gst_event_new_segment (&newsegment);
691 gst_asf_demux_send_event_unlocked (demux, newseg);
694 gst_segment_do_seek (&segment, rate, format, flags, cur_type,
695 cur, stop_type, stop, &only_need_update);
697 GST_DEBUG_OBJECT (demux, "seeking to time %" GST_TIME_FORMAT ", segment: "
698 "%" GST_SEGMENT_FORMAT, GST_TIME_ARGS (segment.start), &segment);
700 seek_time = segment.start;
702 /* FIXME: should check the KEY_UNIT flag; need to adjust position to
703 * real start of data and segment_start to indexed time for key unit seek*/
704 if (G_UNLIKELY (!gst_asf_demux_seek_index_lookup (demux, &packet, seek_time,
705 &idx_time, &speed_count, next, &eos))) {
709 demux->packet = demux->num_packets;
713 /* First try to query our source to see if it can convert for us. This is
714 the case when our source is an mms stream, notice that in this case
715 gstmms will do a time based seek to get the byte offset, this is not a
716 problem as the seek to this offset needs to happen anway. */
717 if (gst_pad_peer_query_convert (demux->sinkpad, GST_FORMAT_TIME, seek_time,
718 GST_FORMAT_BYTES, &offset)) {
719 packet = (offset - demux->data_offset) / demux->packet_size;
720 GST_LOG_OBJECT (demux, "convert %" GST_TIME_FORMAT
721 " to bytes query result: %" G_GINT64_FORMAT ", data_ofset: %"
722 G_GINT64_FORMAT ", packet_size: %u," " resulting packet: %u\n",
723 GST_TIME_ARGS (seek_time), offset, demux->data_offset,
724 demux->packet_size, packet);
726 /* FIXME: For streams containing video, seek to an earlier position in
727 * the hope of hitting a keyframe and let the sinks throw away the stuff
728 * before the segment start. For audio-only this is unnecessary as every
730 if (flush && (demux->accurate || (keyunit_sync && !next))
731 && demux->num_video_streams > 0) {
732 seek_time -= 5 * GST_SECOND;
737 packet = (guint) gst_util_uint64_scale (demux->num_packets,
738 seek_time, demux->play_time);
740 if (packet > demux->num_packets)
741 packet = demux->num_packets;
744 if (G_LIKELY (keyunit_sync)) {
745 GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
746 GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
747 GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
748 segment.start = idx_time;
749 segment.position = idx_time;
750 segment.time = idx_time;
754 GST_DEBUG_OBJECT (demux, "seeking to packet %u (%d)", packet, speed_count);
756 GST_OBJECT_LOCK (demux);
757 demux->segment = segment;
758 demux->packet = packet;
759 demux->need_newsegment = TRUE;
760 demux->speed_packets = speed_count;
761 gst_asf_demux_reset_stream_state_after_discont (demux);
762 GST_OBJECT_UNLOCK (demux);
765 /* restart our task since it might have been stopped when we did the flush */
766 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_asf_demux_loop,
769 /* streaming can continue now */
770 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
776 gst_asf_demux_handle_src_event (GstPad * pad, GstObject * parent,
782 demux = GST_ASF_DEMUX (parent);
784 switch (GST_EVENT_TYPE (event)) {
786 GST_LOG_OBJECT (pad, "seek event");
787 ret = gst_asf_demux_handle_seek_event (demux, event);
788 gst_event_unref (event);
791 case GST_EVENT_NAVIGATION:
792 /* just drop these two silently */
793 gst_event_unref (event);
797 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
798 ret = gst_pad_event_default (pad, parent, event);
805 static inline guint32
806 gst_asf_demux_identify_guid (const ASFGuidHash * guids, ASFGuid * guid)
810 ret = gst_asf_identify_guid (guids, guid);
812 GST_LOG ("%s 0x%08x-0x%08x-0x%08x-0x%08x",
813 gst_asf_get_guid_nick (guids, ret),
814 guid->v1, guid->v2, guid->v3, guid->v4);
826 /* expect is true when the user is expeting an object,
827 * when false, it will give no warnings if the object
831 asf_demux_peek_object (GstASFDemux * demux, const guint8 * data,
832 guint data_len, AsfObject * object, gboolean expect)
836 if (data_len < ASF_OBJECT_HEADER_SIZE)
839 guid.v1 = GST_READ_UINT32_LE (data + 0);
840 guid.v2 = GST_READ_UINT32_LE (data + 4);
841 guid.v3 = GST_READ_UINT32_LE (data + 8);
842 guid.v4 = GST_READ_UINT32_LE (data + 12);
844 object->size = GST_READ_UINT64_LE (data + 16);
846 /* FIXME: make asf_demux_identify_object_guid() */
847 object->id = gst_asf_demux_identify_guid (asf_object_guids, &guid);
848 if (object->id == ASF_OBJ_UNDEFINED && expect) {
849 GST_WARNING_OBJECT (demux, "Unknown object %08x-%08x-%08x-%08x",
850 guid.v1, guid.v2, guid.v3, guid.v4);
857 gst_asf_demux_release_old_pads (GstASFDemux * demux)
859 GST_DEBUG_OBJECT (demux, "Releasing old pads");
861 while (demux->old_num_streams > 0) {
862 gst_pad_push_event (demux->old_stream[demux->old_num_streams - 1].pad,
863 gst_event_new_eos ());
864 gst_asf_demux_free_stream (demux,
865 &demux->old_stream[demux->old_num_streams - 1]);
866 --demux->old_num_streams;
868 memset (demux->old_stream, 0, sizeof (demux->old_stream));
869 demux->old_num_streams = 0;
873 gst_asf_demux_chain_headers (GstASFDemux * demux)
877 guint8 *header_data, *data = NULL;
878 const guint8 *cdata = NULL;
881 cdata = (guint8 *) gst_adapter_map (demux->adapter, ASF_OBJECT_HEADER_SIZE);
885 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
886 if (obj.id != ASF_OBJ_HEADER)
889 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
891 /* + 50 for non-packet data at beginning of ASF_OBJ_DATA */
892 if (gst_adapter_available (demux->adapter) < obj.size + 50)
895 data = gst_adapter_take (demux->adapter, obj.size + 50);
898 header_size = obj.size;
899 flow = gst_asf_demux_process_object (demux, &header_data, &header_size);
900 if (flow != GST_FLOW_OK)
903 /* calculate where the packet data starts */
904 demux->data_offset = obj.size + 50;
906 /* now parse the beginning of the ASF_OBJ_DATA object */
907 if (!gst_asf_demux_parse_data_object_start (demux, data + obj.size))
910 if (demux->num_streams == 0)
919 GST_LOG_OBJECT (demux, "not enough data in adapter yet");
926 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
927 ("This doesn't seem to be an ASF file"));
929 return GST_FLOW_ERROR;
934 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
935 ("header parsing failed, or no streams found, flow = %s",
936 gst_flow_get_name (flow)));
938 return GST_FLOW_ERROR;
943 gst_asf_demux_aggregate_flow_return (GstASFDemux * demux, AsfStream * stream,
948 GST_DEBUG_OBJECT (demux, "Aggregating");
950 /* Store the value */
951 stream->last_flow = flow;
953 /* any other error that is not not-linked can be returned right away */
954 if (flow != GST_FLOW_NOT_LINKED)
957 for (i = 0; i < demux->num_streams; i++) {
958 if (demux->stream[i].active) {
959 flow = demux->stream[i].last_flow;
960 GST_DEBUG_OBJECT (demux, "Aggregating: flow %i return %s", i,
961 gst_flow_get_name (flow));
962 if (flow != GST_FLOW_NOT_LINKED)
967 /* If we got here, then all our active streams are not linked */
973 gst_asf_demux_pull_data (GstASFDemux * demux, guint64 offset, guint size,
974 GstBuffer ** p_buf, GstFlowReturn * p_flow)
979 GST_LOG_OBJECT (demux, "pulling buffer at %" G_GUINT64_FORMAT "+%u",
982 flow = gst_pad_pull_range (demux->sinkpad, offset, size, p_buf);
984 if (G_LIKELY (p_flow))
987 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
988 GST_DEBUG_OBJECT (demux, "flow %s pulling buffer at %" G_GUINT64_FORMAT
989 "+%u", gst_flow_get_name (flow), offset, size);
994 g_assert (*p_buf != NULL);
996 buffer_size = gst_buffer_get_size (*p_buf);
997 if (G_UNLIKELY (buffer_size < size)) {
998 GST_DEBUG_OBJECT (demux, "short read pulling buffer at %" G_GUINT64_FORMAT
999 "+%u (got only %" G_GSIZE_FORMAT " bytes)", offset, size, buffer_size);
1000 gst_buffer_unref (*p_buf);
1001 if (G_LIKELY (p_flow))
1002 *p_flow = GST_FLOW_EOS;
1011 gst_asf_demux_pull_indices (GstASFDemux * demux)
1013 GstBuffer *buf = NULL;
1017 offset = demux->index_offset;
1019 if (G_UNLIKELY (offset == 0)) {
1020 GST_DEBUG_OBJECT (demux, "can't read indices, don't know index offset");
1024 while (gst_asf_demux_pull_data (demux, offset, 16 + 8, &buf, NULL)) {
1030 gst_buffer_map (buf, &map, GST_MAP_READ);
1031 g_assert (map.size >= 16 + 8);
1032 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1033 gst_buffer_unmap (buf, &map);
1034 gst_buffer_replace (&buf, NULL);
1036 /* check for sanity */
1037 if (G_UNLIKELY (obj.size > (5 * 1024 * 1024))) {
1038 GST_DEBUG_OBJECT (demux, "implausible index object size, bailing out");
1042 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, offset, obj.size, &buf,
1046 GST_LOG_OBJECT (demux, "index object at offset 0x%" G_GINT64_MODIFIER "X"
1047 ", size %u", offset, (guint) obj.size);
1049 offset += obj.size; /* increase before _process_object changes it */
1051 gst_buffer_map (buf, &map, GST_MAP_READ);
1052 g_assert (map.size >= obj.size);
1053 bufdata = (guint8 *) map.data;
1054 flow = gst_asf_demux_process_object (demux, &bufdata, &obj.size);
1055 gst_buffer_unmap (buf, &map);
1056 gst_buffer_replace (&buf, NULL);
1058 if (G_UNLIKELY (flow != GST_FLOW_OK))
1063 GST_DEBUG_OBJECT (demux, "read %u index objects", num_read);
1067 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data)
1071 asf_demux_peek_object (demux, data, 50, &obj, TRUE);
1072 if (obj.id != ASF_OBJ_DATA) {
1073 GST_WARNING_OBJECT (demux, "headers not followed by a DATA object");
1077 demux->state = GST_ASF_DEMUX_STATE_DATA;
1079 if (!demux->broadcast && obj.size > 50) {
1080 demux->data_size = obj.size - 50;
1081 /* CHECKME: for at least one file this is off by +158 bytes?! */
1082 demux->index_offset = demux->data_offset + demux->data_size;
1084 demux->data_size = 0;
1085 demux->index_offset = 0;
1090 if (!demux->broadcast) {
1091 /* skip object header (24 bytes) and file GUID (16 bytes) */
1092 demux->num_packets = GST_READ_UINT64_LE (data + (16 + 8) + 16);
1094 demux->num_packets = 0;
1097 if (demux->num_packets == 0)
1098 demux->seekable = FALSE;
1100 /* fallback in the unlikely case that headers are inconsistent, can't hurt */
1101 if (demux->data_size == 0 && demux->num_packets > 0) {
1102 demux->data_size = demux->num_packets * demux->packet_size;
1103 demux->index_offset = demux->data_offset + demux->data_size;
1106 /* process pending stream objects and create pads for those */
1107 gst_asf_demux_process_queued_extended_stream_objects (demux);
1109 GST_INFO_OBJECT (demux, "Stream has %" G_GUINT64_FORMAT " packets, "
1110 "data_offset=%" G_GINT64_FORMAT ", data_size=%" G_GINT64_FORMAT
1111 ", index_offset=%" G_GUINT64_FORMAT, demux->num_packets,
1112 demux->data_offset, demux->data_size, demux->index_offset);
1118 gst_asf_demux_pull_headers (GstASFDemux * demux)
1122 GstBuffer *buf = NULL;
1127 GST_LOG_OBJECT (demux, "reading headers");
1129 /* pull HEADER object header, so we know its size */
1130 if (!gst_asf_demux_pull_data (demux, demux->base_offset, 16 + 8, &buf, NULL))
1133 gst_buffer_map (buf, &map, GST_MAP_READ);
1134 g_assert (map.size >= 16 + 8);
1135 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1136 gst_buffer_unmap (buf, &map);
1137 gst_buffer_replace (&buf, NULL);
1139 if (obj.id != ASF_OBJ_HEADER)
1142 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
1144 /* pull HEADER object */
1145 if (!gst_asf_demux_pull_data (demux, demux->base_offset, obj.size, &buf,
1149 size = obj.size; /* don't want obj.size changed */
1150 gst_buffer_map (buf, &map, GST_MAP_READ);
1151 g_assert (map.size >= size);
1152 bufdata = (guint8 *) map.data;
1153 flow = gst_asf_demux_process_object (demux, &bufdata, &size);
1154 gst_buffer_unmap (buf, &map);
1155 gst_buffer_replace (&buf, NULL);
1157 if (flow != GST_FLOW_OK) {
1158 GST_WARNING_OBJECT (demux, "process_object: %s", gst_flow_get_name (flow));
1162 /* calculate where the packet data starts */
1163 demux->data_offset = demux->base_offset + obj.size + 50;
1165 /* now pull beginning of DATA object before packet data */
1166 if (!gst_asf_demux_pull_data (demux, demux->base_offset + obj.size, 50, &buf,
1170 gst_buffer_map (buf, &map, GST_MAP_READ);
1171 g_assert (map.size >= size);
1172 bufdata = (guint8 *) map.data;
1173 if (!gst_asf_demux_parse_data_object_start (demux, bufdata))
1176 if (demux->num_streams == 0)
1179 gst_buffer_unmap (buf, &map);
1180 gst_buffer_replace (&buf, NULL);
1188 gst_buffer_unmap (buf, &map);
1189 gst_buffer_replace (&buf, NULL);
1191 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1192 ("This doesn't seem to be an ASF file"));
1201 gst_buffer_unmap (buf, &map);
1202 gst_buffer_replace (&buf, NULL);
1203 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), (NULL));
1209 all_streams_prerolled (GstASFDemux * demux)
1211 GstClockTime preroll_time;
1212 guint i, num_no_data = 0;
1214 /* Allow at least 500ms of preroll_time */
1215 preroll_time = MAX (demux->preroll, 500 * GST_MSECOND);
1217 /* returns TRUE as long as there isn't a stream which (a) has data queued
1218 * and (b) the timestamp of last piece of data queued is < demux->preroll
1219 * AND there is at least one other stream with data queued */
1220 for (i = 0; i < demux->num_streams; ++i) {
1221 AsfPayload *last_payload;
1225 stream = &demux->stream[i];
1226 if (G_UNLIKELY (stream->payloads->len == 0)) {
1228 GST_LOG_OBJECT (stream->pad, "no data queued");
1232 last_idx = stream->payloads->len - 1;
1233 last_payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1235 GST_LOG_OBJECT (stream->pad, "checking if %" GST_TIME_FORMAT " > %"
1236 GST_TIME_FORMAT, GST_TIME_ARGS (last_payload->ts),
1237 GST_TIME_ARGS (preroll_time));
1238 if (G_UNLIKELY (last_payload->ts <= preroll_time)) {
1239 GST_LOG_OBJECT (stream->pad, "not beyond preroll point yet");
1244 if (G_UNLIKELY (num_no_data == demux->num_streams))
1252 gst_asf_demux_have_mutually_exclusive_active_stream (GstASFDemux * demux,
1257 for (l = demux->mut_ex_streams; l != NULL; l = l->next) {
1260 /* check for each mutual exclusion group whether it affects this stream */
1261 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1262 if (*mes == stream->id) {
1263 /* we are in this group; let's check if we've already activated streams
1264 * that are in the same group (and hence mutually exclusive to this
1266 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1269 for (i = 0; i < demux->num_streams; ++i) {
1270 if (demux->stream[i].id == *mes && demux->stream[i].active) {
1271 GST_LOG_OBJECT (demux, "stream with ID %d is mutually exclusive "
1272 "to already active stream with ID %d", stream->id,
1273 demux->stream[i].id);
1278 /* we can only be in this group once, let's break out and move on to
1279 * the next mutual exclusion group */
1290 gst_asf_demux_check_activate_streams (GstASFDemux * demux, gboolean force)
1294 if (demux->activated_streams)
1297 if (!all_streams_prerolled (demux) && !force) {
1298 GST_DEBUG_OBJECT (demux, "not all streams with data beyond preroll yet");
1302 for (i = 0; i < demux->num_streams; ++i) {
1303 AsfStream *stream = &demux->stream[i];
1305 if (stream->payloads->len > 0) {
1306 /* we don't check mutual exclusion stuff here; either we have data for
1307 * a stream, then we active it, or we don't, then we'll ignore it */
1308 GST_LOG_OBJECT (stream->pad, "is prerolled - activate!");
1309 gst_asf_demux_activate_stream (demux, stream);
1311 GST_LOG_OBJECT (stream->pad, "no data, ignoring stream");
1315 gst_asf_demux_release_old_pads (demux);
1317 demux->activated_streams = TRUE;
1318 GST_LOG_OBJECT (demux, "signalling no more pads");
1319 gst_element_no_more_pads (GST_ELEMENT (demux));
1323 /* returns the stream that has a complete payload with the lowest timestamp
1324 * queued, or NULL (we push things by timestamp because during the internal
1325 * prerolling we might accumulate more data then the external queues can take,
1326 * so we'd lock up if we pushed all accumulated data for stream N in one go) */
1328 gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
1330 AsfPayload *best_payload = NULL;
1331 AsfStream *best_stream = NULL;
1334 for (i = 0; i < demux->num_streams; ++i) {
1337 stream = &demux->stream[i];
1339 /* Don't push any data until we have at least one payload that falls within
1340 * the current segment. This way we can remove out-of-segment payloads that
1341 * don't need to be decoded after a seek, sending only data from the
1342 * keyframe directly before our segment start */
1343 if (stream->payloads->len > 0) {
1344 AsfPayload *payload;
1347 last_idx = stream->payloads->len - 1;
1348 payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1349 if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1350 (payload->ts < demux->segment.start))) {
1351 if (G_UNLIKELY ((!demux->accurate) && payload->keyframe)) {
1352 GST_DEBUG_OBJECT (stream->pad,
1353 "Found keyframe, updating segment start to %" GST_TIME_FORMAT,
1354 GST_TIME_ARGS (payload->ts));
1355 demux->segment.start = payload->ts;
1356 demux->segment.time = payload->ts;
1358 GST_DEBUG_OBJECT (stream->pad, "Last queued payload has timestamp %"
1359 GST_TIME_FORMAT " which is before our segment start %"
1360 GST_TIME_FORMAT ", not pushing yet", GST_TIME_ARGS (payload->ts),
1361 GST_TIME_ARGS (demux->segment.start));
1366 /* Now see if there's a complete payload queued for this stream */
1368 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1369 if (!gst_asf_payload_is_complete (payload))
1372 /* ... and whether its timestamp is lower than the current best */
1373 if (best_stream == NULL || best_payload->ts > payload->ts) {
1374 best_stream = stream;
1375 best_payload = payload;
1383 static GstFlowReturn
1384 gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
1387 GstFlowReturn ret = GST_FLOW_OK;
1389 if (G_UNLIKELY (!demux->activated_streams)) {
1390 if (!gst_asf_demux_check_activate_streams (demux, force))
1392 /* streams are now activated */
1395 /* wait until we had a chance to "lock on" some payload's timestamp */
1396 if (G_UNLIKELY (demux->need_newsegment
1397 && !GST_CLOCK_TIME_IS_VALID (demux->segment_ts)))
1400 while ((stream = gst_asf_demux_find_stream_with_complete_payload (demux))) {
1401 AsfPayload *payload;
1403 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1405 /* do we need to send a newsegment event */
1406 if ((G_UNLIKELY (demux->need_newsegment))) {
1408 /* safe default if insufficient upstream info */
1409 if (!GST_CLOCK_TIME_IS_VALID (demux->in_gap))
1412 if (demux->segment.stop == GST_CLOCK_TIME_NONE &&
1413 demux->segment.duration > 0) {
1414 /* slight HACK; prevent clipping of last bit */
1415 demux->segment.stop = demux->segment.duration + demux->in_gap;
1418 /* FIXME : only if ACCURATE ! */
1419 if (G_LIKELY (!demux->accurate
1420 && (GST_CLOCK_TIME_IS_VALID (payload->ts)))) {
1421 GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
1422 GST_TIME_ARGS (payload->ts));
1423 demux->segment.start = payload->ts;
1424 demux->segment.time = payload->ts;
1427 GST_DEBUG_OBJECT (demux, "sending new-segment event %" GST_SEGMENT_FORMAT,
1430 /* note: we fix up all timestamps to start from 0, so this should be ok */
1431 gst_asf_demux_send_event_unlocked (demux,
1432 gst_event_new_segment (&demux->segment));
1434 /* now post any global tags we may have found */
1435 if (demux->taglist == NULL)
1436 demux->taglist = gst_tag_list_new_empty ();
1438 gst_tag_list_add (demux->taglist, GST_TAG_MERGE_REPLACE,
1439 GST_TAG_CONTAINER_FORMAT, "ASF", NULL);
1441 GST_DEBUG_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, demux->taglist);
1442 gst_asf_demux_send_event_unlocked (demux,
1443 gst_event_new_tag ("GstDemuxer", demux->taglist));
1444 demux->taglist = NULL;
1446 demux->need_newsegment = FALSE;
1447 demux->segment_running = TRUE;
1450 /* Do we have tags pending for this stream? */
1451 if (G_UNLIKELY (stream->pending_tags)) {
1452 GST_LOG_OBJECT (stream->pad, "%" GST_PTR_FORMAT, stream->pending_tags);
1453 gst_pad_push_event (stream->pad,
1454 gst_event_new_tag ("GstDemuxer", stream->pending_tags));
1455 stream->pending_tags = NULL;
1458 /* We have the whole packet now so we should push the packet to
1459 * the src pad now. First though we should check if we need to do
1461 if (G_UNLIKELY (demux->span > 1)) {
1462 gst_asf_demux_descramble_buffer (demux, stream, &payload->buf);
1465 payload->buf = gst_buffer_make_writable (payload->buf);
1467 if (G_LIKELY (!payload->keyframe)) {
1468 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DELTA_UNIT);
1471 if (G_UNLIKELY (stream->discont)) {
1472 GST_DEBUG_OBJECT (stream->pad, "marking DISCONT on stream");
1473 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1474 stream->discont = FALSE;
1477 if (G_UNLIKELY (stream->is_video && payload->par_x && payload->par_y &&
1478 (payload->par_x != stream->par_x) &&
1479 (payload->par_y != stream->par_y))) {
1480 GST_DEBUG ("Updating PAR (%d/%d => %d/%d)",
1481 stream->par_x, stream->par_y, payload->par_x, payload->par_y);
1482 stream->par_x = payload->par_x;
1483 stream->par_y = payload->par_y;
1484 stream->caps = gst_caps_make_writable (stream->caps);
1485 gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
1486 GST_TYPE_FRACTION, stream->par_x, stream->par_y, NULL);
1487 gst_pad_set_caps (stream->pad, stream->caps);
1490 if (G_UNLIKELY (stream->interlaced != payload->interlaced)) {
1491 GST_DEBUG ("Updating interlaced status (%d => %d)", stream->interlaced,
1492 payload->interlaced);
1493 stream->interlaced = payload->interlaced;
1494 stream->caps = gst_caps_make_writable (stream->caps);
1495 gst_caps_set_simple (stream->caps, "interlace-mode", G_TYPE_BOOLEAN,
1496 (stream->interlaced ? "mixed" : "progressive"), NULL);
1497 gst_pad_set_caps (stream->pad, stream->caps);
1500 /* (sort of) interpolate timestamps using upstream "frame of reference",
1501 * typically useful for live src, but might (unavoidably) mess with
1502 * position reporting if a live src is playing not so live content
1503 * (e.g. rtspsrc taking some time to fall back to tcp) */
1504 GST_BUFFER_TIMESTAMP (payload->buf) = payload->ts + demux->in_gap;
1505 if (payload->duration == GST_CLOCK_TIME_NONE
1506 && stream->ext_props.avg_time_per_frame != 0)
1507 GST_BUFFER_DURATION (payload->buf) =
1508 stream->ext_props.avg_time_per_frame * 100;
1510 GST_BUFFER_DURATION (payload->buf) = payload->duration;
1512 /* FIXME: we should really set durations on buffers if we can */
1514 GST_LOG_OBJECT (stream->pad, "pushing buffer, ts=%" GST_TIME_FORMAT
1515 ", dur=%" GST_TIME_FORMAT " size=%" G_GSIZE_FORMAT,
1516 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (payload->buf)),
1517 GST_TIME_ARGS (GST_BUFFER_DURATION (payload->buf)),
1518 gst_buffer_get_size (payload->buf));
1520 if (stream->active) {
1521 ret = gst_pad_push (stream->pad, payload->buf);
1522 ret = gst_asf_demux_aggregate_flow_return (demux, stream, ret);
1524 gst_buffer_unref (payload->buf);
1527 payload->buf = NULL;
1528 g_array_remove_index (stream->payloads, 0);
1530 /* Break out as soon as we have an issue */
1531 if (G_UNLIKELY (ret != GST_FLOW_OK))
1539 gst_asf_demux_check_buffer_is_header (GstASFDemux * demux, GstBuffer * buf)
1543 g_assert (buf != NULL);
1545 GST_LOG_OBJECT (demux, "Checking if buffer is a header");
1547 gst_buffer_map (buf, &map, GST_MAP_READ);
1549 /* we return false on buffer too small */
1550 if (map.size < ASF_OBJECT_HEADER_SIZE) {
1551 gst_buffer_unmap (buf, &map);
1555 /* check if it is a header */
1556 asf_demux_peek_object (demux, map.data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
1557 gst_buffer_unmap (buf, &map);
1558 if (obj.id == ASF_OBJ_HEADER) {
1565 gst_asf_demux_check_chained_asf (GstASFDemux * demux)
1567 guint64 off = demux->data_offset + (demux->packet * demux->packet_size);
1568 GstFlowReturn ret = GST_FLOW_OK;
1569 GstBuffer *buf = NULL;
1570 gboolean header = FALSE;
1572 /* TODO maybe we should skip index objects after the data and look
1573 * further for a new header */
1574 if (gst_asf_demux_pull_data (demux, off, ASF_OBJECT_HEADER_SIZE, &buf, &ret)) {
1575 g_assert (buf != NULL);
1576 /* check if it is a header */
1577 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1578 GST_DEBUG_OBJECT (demux, "new base offset: %" G_GUINT64_FORMAT, off);
1579 demux->base_offset = off;
1583 gst_buffer_unref (buf);
1590 gst_asf_demux_loop (GstASFDemux * demux)
1592 GstFlowReturn flow = GST_FLOW_OK;
1593 GstBuffer *buf = NULL;
1595 gboolean sent_eos = FALSE;
1597 if (G_UNLIKELY (demux->state == GST_ASF_DEMUX_STATE_HEADER)) {
1598 if (!gst_asf_demux_pull_headers (demux)) {
1599 flow = GST_FLOW_ERROR;
1603 gst_asf_demux_pull_indices (demux);
1606 g_assert (demux->state == GST_ASF_DEMUX_STATE_DATA);
1608 if (G_UNLIKELY (demux->num_packets != 0
1609 && demux->packet >= demux->num_packets))
1612 GST_LOG_OBJECT (demux, "packet %u/%u", (guint) demux->packet + 1,
1613 (guint) demux->num_packets);
1615 off = demux->data_offset + (demux->packet * demux->packet_size);
1617 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, off,
1618 demux->packet_size * demux->speed_packets, &buf, &flow))) {
1619 GST_DEBUG_OBJECT (demux, "got flow %s", gst_flow_get_name (flow));
1620 if (flow == GST_FLOW_EOS)
1622 else if (flow == GST_FLOW_FLUSHING) {
1623 GST_DEBUG_OBJECT (demux, "Not fatal");
1629 if (G_LIKELY (demux->speed_packets == 1)) {
1630 GstAsfDemuxParsePacketError err;
1631 err = gst_asf_demux_parse_packet (demux, buf);
1632 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1633 /* when we don't know when the data object ends, we should check
1634 * for a chained asf */
1635 if (demux->num_packets == 0) {
1636 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1637 GST_INFO_OBJECT (demux, "Chained asf found");
1638 demux->base_offset = off;
1639 gst_asf_demux_reset (demux, TRUE);
1640 gst_buffer_unref (buf);
1644 /* FIXME: We should tally up fatal errors and error out only
1645 * after a few broken packets in a row? */
1647 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1648 gst_buffer_unref (buf);
1653 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1659 for (n = 0; n < demux->speed_packets; n++) {
1661 GstAsfDemuxParsePacketError err;
1664 gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL,
1665 n * demux->packet_size, demux->packet_size);
1666 err = gst_asf_demux_parse_packet (demux, sub);
1667 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1668 /* when we don't know when the data object ends, we should check
1669 * for a chained asf */
1670 if (demux->num_packets == 0) {
1671 if (gst_asf_demux_check_buffer_is_header (demux, sub)) {
1672 GST_INFO_OBJECT (demux, "Chained asf found");
1673 demux->base_offset = off + n * demux->packet_size;
1674 gst_asf_demux_reset (demux, TRUE);
1675 gst_buffer_unref (sub);
1676 gst_buffer_unref (buf);
1680 /* FIXME: We should tally up fatal errors and error out only
1681 * after a few broken packets in a row? */
1683 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1687 gst_buffer_unref (sub);
1689 if (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)
1690 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1696 /* reset speed pull */
1697 demux->speed_packets = 1;
1700 gst_buffer_unref (buf);
1702 if (G_UNLIKELY (demux->num_packets > 0
1703 && demux->packet >= demux->num_packets)) {
1704 GST_LOG_OBJECT (demux, "reached EOS");
1708 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1709 GST_DEBUG_OBJECT (demux, "pushing complete payloads failed");
1713 /* check if we're at the end of the configured segment */
1714 /* FIXME: check if segment end reached etc. */
1720 /* if we haven't activated our streams yet, this might be because we have
1721 * less data queued than required for preroll; force stream activation and
1722 * send any pending payloads before sending EOS */
1723 if (!demux->activated_streams)
1724 gst_asf_demux_push_complete_payloads (demux, TRUE);
1726 /* we want to push an eos or post a segment-done in any case */
1727 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1730 /* for segment playback we need to post when (in stream time)
1731 * we stopped, this is either stop (when set) or the duration. */
1732 if ((stop = demux->segment.stop) == -1)
1733 stop = demux->segment.duration;
1735 GST_INFO_OBJECT (demux, "Posting segment-done, at end of segment");
1736 gst_element_post_message (GST_ELEMENT_CAST (demux),
1737 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
1739 gst_asf_demux_send_event_unlocked (demux,
1740 gst_event_new_segment_done (GST_FORMAT_TIME, stop));
1741 } else if (flow != GST_FLOW_EOS) {
1742 /* check if we have a chained asf, in case, we don't eos yet */
1743 if (gst_asf_demux_check_chained_asf (demux)) {
1744 GST_INFO_OBJECT (demux, "Chained ASF starting");
1745 gst_asf_demux_reset (demux, TRUE);
1749 /* normal playback, send EOS to all linked pads */
1750 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
1751 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1753 /* ... and fall through to pause */
1757 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
1758 gst_flow_get_name (flow));
1759 demux->segment_running = FALSE;
1760 gst_pad_pause_task (demux->sinkpad);
1762 /* For the error cases (not EOS) */
1764 if (flow == GST_FLOW_EOS)
1765 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1766 else if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
1767 /* Post an error. Hopefully something else already has, but if not... */
1768 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1769 (_("Internal data stream error.")),
1770 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
1779 GST_DEBUG_OBJECT (demux, "Read failed, doh");
1780 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1781 flow = GST_FLOW_EOS;
1785 /* See FIXMEs above */
1788 gst_buffer_unref (buf);
1789 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
1790 ("Error parsing ASF packet %u", (guint) demux->packet));
1791 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1792 flow = GST_FLOW_ERROR;
1798 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
1799 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
1800 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
1803 gst_asf_demux_check_header (GstASFDemux * demux)
1806 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
1807 ASF_OBJECT_HEADER_SIZE);
1808 if (cdata == NULL) /* need more data */
1809 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
1811 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE);
1812 if (obj.id != ASF_OBJ_HEADER) {
1813 return GST_ASF_DEMUX_CHECK_HEADER_NO;
1815 return GST_ASF_DEMUX_CHECK_HEADER_YES;
1819 static GstFlowReturn
1820 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
1822 GstFlowReturn ret = GST_FLOW_OK;
1825 demux = GST_ASF_DEMUX (parent);
1827 GST_LOG_OBJECT (demux,
1828 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
1829 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
1830 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
1832 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
1833 GST_DEBUG_OBJECT (demux, "received DISCONT");
1834 gst_asf_demux_mark_discont (demux);
1837 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
1838 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
1839 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
1840 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
1841 ", interpolation gap: %" GST_TIME_FORMAT,
1842 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
1845 gst_adapter_push (demux->adapter, buf);
1847 switch (demux->state) {
1848 case GST_ASF_DEMUX_STATE_INDEX:{
1849 gint result = gst_asf_demux_check_header (demux);
1850 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
1853 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
1854 /* we don't care about this, probably an index */
1855 /* TODO maybe would be smarter to skip all the indices
1856 * until we got a new header or EOS to decide */
1857 GST_LOG_OBJECT (demux, "Received index object, its EOS");
1860 GST_INFO_OBJECT (demux, "Chained asf starting");
1861 /* cleanup and get ready for a chained asf */
1862 gst_asf_demux_reset (demux, TRUE);
1866 case GST_ASF_DEMUX_STATE_HEADER:{
1867 ret = gst_asf_demux_chain_headers (demux);
1868 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
1870 /* otherwise fall through */
1872 case GST_ASF_DEMUX_STATE_DATA:
1876 data_size = demux->packet_size;
1878 while (gst_adapter_available (demux->adapter) >= data_size) {
1880 GstAsfDemuxParsePacketError err;
1882 /* we don't know the length of the stream
1883 * check for a chained asf everytime */
1884 if (demux->num_packets == 0) {
1885 gint result = gst_asf_demux_check_header (demux);
1887 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
1888 GST_INFO_OBJECT (demux, "Chained asf starting");
1889 /* cleanup and get ready for a chained asf */
1890 gst_asf_demux_reset (demux, TRUE);
1893 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
1894 && demux->packet >= demux->num_packets)) {
1895 /* do not overshoot data section when streaming */
1899 buf = gst_adapter_take_buffer (demux->adapter, data_size);
1901 /* FIXME: We should tally up fatal errors and error out only
1902 * after a few broken packets in a row? */
1903 err = gst_asf_demux_parse_packet (demux, buf);
1905 gst_buffer_unref (buf);
1907 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
1908 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
1910 GST_WARNING_OBJECT (demux, "Parse error");
1912 if (demux->packet >= 0)
1915 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
1916 && demux->packet >= demux->num_packets)) {
1917 demux->state = GST_ASF_DEMUX_STATE_INDEX;
1922 g_assert_not_reached ();
1926 if (ret != GST_FLOW_OK)
1927 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
1933 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
1939 static inline gboolean
1940 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
1942 if (*p_size < num_bytes)
1945 *p_data += num_bytes;
1946 *p_size -= num_bytes;
1950 static inline guint8
1951 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
1955 g_assert (*p_size >= 1);
1956 ret = GST_READ_UINT8 (*p_data);
1957 *p_data += sizeof (guint8);
1958 *p_size -= sizeof (guint8);
1962 static inline guint16
1963 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
1967 g_assert (*p_size >= 2);
1968 ret = GST_READ_UINT16_LE (*p_data);
1969 *p_data += sizeof (guint16);
1970 *p_size -= sizeof (guint16);
1974 static inline guint32
1975 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
1979 g_assert (*p_size >= 4);
1980 ret = GST_READ_UINT32_LE (*p_data);
1981 *p_data += sizeof (guint32);
1982 *p_size -= sizeof (guint32);
1986 static inline guint64
1987 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
1991 g_assert (*p_size >= 8);
1992 ret = GST_READ_UINT64_LE (*p_data);
1993 *p_data += sizeof (guint64);
1994 *p_size -= sizeof (guint64);
1998 static inline guint32
1999 gst_asf_demux_get_var_length (guint8 type, guint8 ** p_data, guint64 * p_size)
2006 g_assert (*p_size >= 1);
2007 return gst_asf_demux_get_uint8 (p_data, p_size);
2010 g_assert (*p_size >= 2);
2011 return gst_asf_demux_get_uint16 (p_data, p_size);
2014 g_assert (*p_size >= 4);
2015 return gst_asf_demux_get_uint32 (p_data, p_size);
2018 g_assert_not_reached ();
2025 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2026 guint8 ** p_data, guint64 * p_size)
2030 if (*p_size < num_bytes_to_read)
2033 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2034 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2036 *p_data += num_bytes_to_read;
2037 *p_size -= num_bytes_to_read;
2043 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2044 guint8 ** p_data, guint64 * p_size)
2048 if (*p_size < num_bytes_to_read)
2051 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2052 *p_data += num_bytes_to_read;
2053 *p_size -= num_bytes_to_read;
2058 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2059 guint8 ** p_data, guint64 * p_size)
2069 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2072 *p_strlen = s_length;
2074 if (s_length == 0) {
2075 GST_WARNING ("zero-length string");
2076 *p_str = g_strdup ("");
2080 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2083 g_assert (s != NULL);
2085 /* just because They don't exist doesn't
2086 * mean They are not out to get you ... */
2087 if (s[s_length - 1] != '\0') {
2088 s = g_realloc (s, s_length + 1);
2092 *p_str = (gchar *) s;
2098 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2100 g_assert (*p_size >= 4 * sizeof (guint32));
2102 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2103 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2104 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2105 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2109 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2112 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2115 /* WAVEFORMATEX Structure */
2116 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2117 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2118 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2119 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2120 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2121 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2122 /* Codec specific data size */
2123 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2128 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2131 if (*p_size < (4 + 4 + 1 + 2))
2134 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2135 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2136 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2137 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2142 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2143 guint8 ** p_data, guint64 * p_size)
2145 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2148 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2149 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2150 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2151 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2152 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2153 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2154 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2155 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2156 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2157 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2158 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2163 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2167 for (i = 0; i < demux->num_streams; i++) {
2168 if (demux->stream[i].id == id)
2169 return &demux->stream[i];
2172 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2177 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2178 GstCaps * caps, guint16 id, gboolean is_video, GstTagList * tags)
2182 gst_pad_use_fixed_caps (src_pad);
2183 gst_pad_set_caps (src_pad, caps);
2185 gst_pad_set_event_function (src_pad,
2186 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2187 gst_pad_set_query_function (src_pad,
2188 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2190 stream = &demux->stream[demux->num_streams];
2191 stream->caps = caps;
2192 stream->pad = src_pad;
2194 stream->fps_known = !is_video; /* bit hacky for audio */
2195 stream->is_video = is_video;
2196 stream->pending_tags = tags;
2197 stream->discont = TRUE;
2201 st = gst_caps_get_structure (caps, 0);
2202 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2203 par_x > 0 && par_y > 0) {
2204 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2205 stream->par_x = par_x;
2206 stream->par_y = par_y;
2210 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2212 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2213 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2215 ++demux->num_streams;
2217 stream->active = FALSE;
2221 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2222 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2224 GstTagList *tags = NULL;
2225 GstBuffer *extradata = NULL;
2228 guint16 size_left = 0;
2229 gchar *codec_name = NULL;
2232 size_left = audio->size;
2234 /* Create the audio pad */
2235 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2237 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2240 /* Swallow up any left over data and set up the
2241 * standard properties from the header info */
2243 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2244 "codec specific data", size_left);
2246 g_assert (size_left <= *p_size);
2247 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2250 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2251 * additional two bytes indicating extradata. */
2252 /* FIXME: Handle the channel reorder map here */
2253 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2254 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2257 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2258 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2261 /* Informing about that audio format we just added */
2263 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2264 g_free (codec_name);
2268 gst_buffer_unref (extradata);
2270 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2271 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2272 audio->codec_tag, tags);
2274 ++demux->num_audio_streams;
2276 gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, tags);
2280 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2281 asf_stream_video_format * video, guint16 id,
2282 guint8 ** p_data, guint64 * p_size)
2284 GstTagList *tags = NULL;
2285 GstBuffer *extradata = NULL;
2290 gchar *codec_name = NULL;
2291 gint size_left = video->size - 40;
2293 /* Create the video pad */
2294 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2295 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2298 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2300 GST_LOG ("Video header has %d bytes of codec specific data", size_left);
2301 g_assert (size_left <= *p_size);
2302 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2305 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2307 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2308 caps = gst_riff_create_video_caps (video->tag, NULL,
2309 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2312 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2313 G_TYPE_UINT, video->tag, NULL);
2318 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2319 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2320 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2321 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2326 /* retry with the global metadata */
2327 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2328 demux->global_metadata);
2329 s = demux->global_metadata;
2330 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2331 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2332 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2333 if (ax > 0 && ay > 0)
2334 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2338 s = gst_caps_get_structure (caps, 0);
2339 gst_structure_remove_field (s, "framerate");
2342 /* add fourcc format to caps, some proprietary decoders seem to need it */
2343 str = g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2344 gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
2348 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2349 g_free (codec_name);
2353 gst_buffer_unref (extradata);
2355 GST_INFO ("Adding video stream #%u, id %u, codec %"
2356 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2357 GST_FOURCC_ARGS (video->tag), video->tag);
2359 ++demux->num_video_streams;
2361 gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE, tags);
2365 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2367 if (!stream->active) {
2368 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2369 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2370 gst_pad_set_active (stream->pad, TRUE);
2371 gst_pad_set_caps (stream->pad, stream->caps);
2372 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2373 gst_pad_push_event (stream->pad, gst_event_new_stream_start ());
2374 stream->active = TRUE;
2379 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2382 AsfCorrectionType correction_type;
2383 AsfStreamType stream_type;
2384 GstClockTime time_offset;
2385 gboolean is_encrypted G_GNUC_UNUSED;
2389 guint stream_specific_size;
2390 guint type_specific_size G_GNUC_UNUSED;
2391 guint unknown G_GNUC_UNUSED;
2393 /* Get the rest of the header's header */
2394 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2395 goto not_enough_data;
2397 gst_asf_demux_get_guid (&guid, &data, &size);
2398 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2400 gst_asf_demux_get_guid (&guid, &data, &size);
2401 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2403 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2405 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2406 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2408 flags = gst_asf_demux_get_uint16 (&data, &size);
2409 stream_id = flags & 0x7f;
2410 is_encrypted = ! !((flags & 0x8000) << 15);
2411 unknown = gst_asf_demux_get_uint32 (&data, &size);
2413 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2414 stream_id, GST_TIME_ARGS (time_offset));
2416 switch (stream_type) {
2417 case ASF_STREAM_AUDIO:{
2418 asf_stream_audio audio_object;
2420 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2421 goto not_enough_data;
2423 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2426 gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2429 switch (correction_type) {
2430 case ASF_CORRECTION_ON:{
2431 guint span, packet_size, chunk_size, data_size, silence_data;
2433 GST_INFO ("Using error correction");
2435 if (size < (1 + 2 + 2 + 2 + 1))
2436 goto not_enough_data;
2438 span = gst_asf_demux_get_uint8 (&data, &size);
2439 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2440 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2441 data_size = gst_asf_demux_get_uint16 (&data, &size);
2442 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2444 /* FIXME: shouldn't this be per-stream? */
2447 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2448 packet_size, chunk_size, data_size, span, silence_data);
2450 if (demux->span > 1) {
2451 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2452 /* Disable descrambling */
2455 /* FIXME: this else branch was added for
2456 * weird_al_yankovic - the saga begins.asf */
2457 demux->ds_packet_size = packet_size;
2458 demux->ds_chunk_size = chunk_size;
2461 /* Descambling is enabled */
2462 demux->ds_packet_size = packet_size;
2463 demux->ds_chunk_size = chunk_size;
2466 /* Now skip the rest of the silence data */
2468 gst_bytestream_flush (demux->bs, data_size - 1);
2470 /* FIXME: CHECKME. And why -1? */
2471 if (data_size > 1) {
2472 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2473 goto not_enough_data;
2479 case ASF_CORRECTION_OFF:{
2480 GST_INFO ("Error correction off");
2481 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2482 goto not_enough_data;
2486 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2487 ("Audio stream using unknown error correction"));
2494 case ASF_STREAM_VIDEO:{
2495 asf_stream_video_format video_format_object;
2496 asf_stream_video video_object;
2499 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2500 goto not_enough_data;
2502 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2504 GST_INFO ("object is a video stream with %u bytes of "
2505 "additional data", vsize);
2507 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2509 goto not_enough_data;
2512 gst_asf_demux_add_video_stream (demux, &video_format_object, stream_id,
2519 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2524 return gst_asf_demux_get_stream (demux, stream_id);
2528 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2529 /* we'll error out later if we found no streams */
2534 static const gchar *
2535 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2539 const gchar *asf_name;
2540 const gchar *gst_name;
2543 "WM/Genre", GST_TAG_GENRE}, {
2544 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2545 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2546 "WM/Picture", GST_TAG_IMAGE}, {
2547 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2548 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2549 "WM/Year", GST_TAG_DATE_TIME}
2550 /* { "WM/Composer", GST_TAG_COMPOSER } */
2555 if (name_utf8 == NULL) {
2556 GST_WARNING ("Failed to convert name to UTF8, skipping");
2560 out = strlen (name_utf8);
2562 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2563 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2564 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2565 return tags[i].gst_name;
2572 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2574 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2578 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2580 if (taglist == NULL)
2583 if (gst_tag_list_is_empty (taglist)) {
2584 gst_tag_list_free (taglist);
2588 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2590 gst_tag_list_free (demux->taglist);
2591 gst_tag_list_free (taglist);
2593 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2596 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2597 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2598 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2601 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2605 const guint8 *img_data = NULL;
2606 guint32 img_data_len = 0;
2607 guint8 pic_type = 0;
2609 gst_byte_reader_init (&r, tag_data, tag_data_len);
2611 /* skip mime type string (we don't trust it and do our own typefinding),
2612 * and also skip the description string, since we don't use it */
2613 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
2614 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
2615 !gst_byte_reader_skip_string_utf16 (&r) ||
2616 !gst_byte_reader_skip_string_utf16 (&r) ||
2617 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
2618 goto not_enough_data;
2622 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
2623 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
2629 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
2630 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
2635 /* Extended Content Description Object */
2636 static GstFlowReturn
2637 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
2640 /* Other known (and unused) 'text/unicode' metadata available :
2643 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
2644 * WMFSDKVersion = 9.00.00.2980
2645 * WMFSDKNeeded = 0.0.0.0000
2646 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
2647 * WM/Publisher = 4AD
2649 * WM/ProviderRating = 8
2650 * WM/ProviderStyle = Rock (similar to WM/Genre)
2651 * WM/GenreID (similar to WM/Genre)
2652 * WM/TrackNumber (same as WM/Track but as a string)
2654 * Other known (and unused) 'non-text' metadata available :
2660 * We might want to read WM/TrackNumber and use atoi() if we don't have
2664 GstTagList *taglist;
2665 guint16 blockcount, i;
2667 GST_INFO_OBJECT (demux, "object is an extended content description");
2669 taglist = gst_tag_list_new_empty ();
2671 /* Content Descriptor Count */
2673 goto not_enough_data;
2675 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2677 for (i = 1; i <= blockcount; ++i) {
2678 const gchar *gst_tag_name;
2682 GValue tag_value = { 0, };
2685 gchar *name_utf8 = NULL;
2689 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
2690 goto not_enough_data;
2694 goto not_enough_data;
2696 /* Descriptor Value Data Type */
2697 datatype = gst_asf_demux_get_uint16 (&data, &size);
2699 /* Descriptor Value (not really a string, but same thing reading-wise) */
2700 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
2702 goto not_enough_data;
2706 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
2708 if (name_utf8 != NULL) {
2709 GST_DEBUG ("Found tag/metadata %s", name_utf8);
2711 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
2712 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
2715 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
2718 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
2721 /* get rid of tags with empty value */
2722 if (value_utf8 != NULL && *value_utf8 != '\0') {
2723 GST_DEBUG ("string value %s", value_utf8);
2725 value_utf8[out] = '\0';
2727 if (gst_tag_name != NULL) {
2728 if (strcmp (gst_tag_name, GST_TAG_DATE_TIME) == 0) {
2729 guint year = atoi (value_utf8);
2732 g_value_init (&tag_value, GST_TYPE_DATE_TIME);
2733 g_value_take_boxed (&tag_value, gst_date_time_new_y (year));
2735 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
2736 guint id3v1_genre_id;
2737 const gchar *genre_str;
2739 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
2740 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
2741 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
2742 g_free (value_utf8);
2743 value_utf8 = g_strdup (genre_str);
2748 /* convert tag from string to other type if required */
2749 tag_type = gst_tag_get_type (gst_tag_name);
2750 g_value_init (&tag_value, tag_type);
2751 if (!gst_value_deserialize (&tag_value, value_utf8)) {
2752 GValue from_val = { 0, };
2754 g_value_init (&from_val, G_TYPE_STRING);
2755 g_value_set_string (&from_val, value_utf8);
2756 if (!g_value_transform (&from_val, &tag_value)) {
2757 GST_WARNING_OBJECT (demux,
2758 "Could not transform string tag to " "%s tag type %s",
2759 gst_tag_name, g_type_name (tag_type));
2760 g_value_unset (&tag_value);
2762 g_value_unset (&from_val);
2767 GST_DEBUG ("Setting metadata");
2768 g_value_init (&tag_value, G_TYPE_STRING);
2769 g_value_set_string (&tag_value, value_utf8);
2771 } else if (value_utf8 == NULL) {
2772 GST_WARNING ("Failed to convert string value to UTF8, skipping");
2774 GST_DEBUG ("Skipping empty string value for %s",
2775 GST_STR_NULL (gst_tag_name));
2777 g_free (value_utf8);
2780 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
2782 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
2783 GST_FIXME ("Unhandled byte array tag %s",
2784 GST_STR_NULL (gst_tag_name));
2787 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
2793 case ASF_DEMUX_DATA_TYPE_DWORD:{
2794 guint uint_val = GST_READ_UINT32_LE (value);
2796 /* this is the track number */
2797 g_value_init (&tag_value, G_TYPE_UINT);
2799 /* WM/Track counts from 0 */
2800 if (!strcmp (name_utf8, "WM/Track"))
2803 g_value_set_uint (&tag_value, uint_val);
2807 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
2812 if (G_IS_VALUE (&tag_value)) {
2814 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
2816 /* WM/TrackNumber is more reliable than WM/Track, since the latter
2817 * is supposed to have a 0 base but is often wrongly written to start
2818 * from 1 as well, so prefer WM/TrackNumber when we have it: either
2819 * replace the value added earlier from WM/Track or put it first in
2820 * the list, so that it will get picked up by _get_uint() */
2821 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
2822 merge_mode = GST_TAG_MERGE_REPLACE;
2824 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
2827 GST_DEBUG ("Setting global metadata %s", name_utf8);
2828 gst_structure_set_value (demux->global_metadata, name_utf8,
2832 g_value_unset (&tag_value);
2841 gst_asf_demux_add_global_tags (demux, taglist);
2848 GST_WARNING ("Unexpected end of data parsing ext content desc object");
2849 gst_tag_list_free (taglist);
2850 return GST_FLOW_OK; /* not really fatal */
2854 static GstStructure *
2855 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
2860 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
2862 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
2865 s = gst_caps_get_structure (demux->metadata, i);
2866 if (gst_structure_has_name (s, sname))
2870 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
2872 /* try lookup again; demux->metadata took ownership of the structure, so we
2873 * can't really make any assumptions about what happened to it, so we can't
2874 * just return it directly after appending it */
2875 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
2878 static GstFlowReturn
2879 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
2882 guint16 blockcount, i;
2884 GST_INFO_OBJECT (demux, "object is a metadata object");
2886 /* Content Descriptor Count */
2888 goto not_enough_data;
2890 blockcount = gst_asf_demux_get_uint16 (&data, &size);
2892 for (i = 0; i < blockcount; ++i) {
2894 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
2895 guint32 data_len, ival;
2898 if (size < (2 + 2 + 2 + 2 + 4))
2899 goto not_enough_data;
2901 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
2902 stream_num = gst_asf_demux_get_uint16 (&data, &size);
2903 name_len = gst_asf_demux_get_uint16 (&data, &size);
2904 data_type = gst_asf_demux_get_uint16 (&data, &size);
2905 data_len = gst_asf_demux_get_uint32 (&data, &size);
2907 if (size < name_len + data_len)
2908 goto not_enough_data;
2910 /* convert name to UTF-8 */
2911 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
2913 gst_asf_demux_skip_bytes (name_len, &data, &size);
2915 if (name_utf8 == NULL) {
2916 GST_WARNING ("Failed to convert value name to UTF8, skipping");
2917 gst_asf_demux_skip_bytes (data_len, &data, &size);
2921 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
2922 gst_asf_demux_skip_bytes (data_len, &data, &size);
2930 goto not_enough_data;
2933 ival = gst_asf_demux_get_uint32 (&data, &size);
2935 /* skip anything else there may be, just in case */
2936 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
2938 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
2939 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
2943 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
2949 GST_WARNING ("Unexpected end of data parsing metadata object");
2950 return GST_FLOW_OK; /* not really fatal */
2954 static GstFlowReturn
2955 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
2957 GstFlowReturn ret = GST_FLOW_OK;
2958 guint32 i, num_objects;
2959 guint8 unknown G_GNUC_UNUSED;
2961 /* Get the rest of the header's header */
2962 if (size < (4 + 1 + 1))
2963 goto not_enough_data;
2965 num_objects = gst_asf_demux_get_uint32 (&data, &size);
2966 unknown = gst_asf_demux_get_uint8 (&data, &size);
2967 unknown = gst_asf_demux_get_uint8 (&data, &size);
2969 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
2971 /* Loop through the header's objects, processing those */
2972 for (i = 0; i < num_objects; ++i) {
2973 GST_INFO_OBJECT (demux, "reading header part %u", i);
2974 ret = gst_asf_demux_process_object (demux, &data, &size);
2975 if (ret != GST_FLOW_OK) {
2976 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
2985 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2986 ("short read parsing HEADER object"));
2987 return GST_FLOW_ERROR;
2991 static GstFlowReturn
2992 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
2994 guint64 creation_time G_GNUC_UNUSED;
2995 guint64 file_size G_GNUC_UNUSED;
2996 guint64 send_time G_GNUC_UNUSED;
2997 guint64 packets_count, play_time, preroll;
2998 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
3000 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
3001 goto not_enough_data;
3003 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
3004 file_size = gst_asf_demux_get_uint64 (&data, &size);
3005 creation_time = gst_asf_demux_get_uint64 (&data, &size);
3006 packets_count = gst_asf_demux_get_uint64 (&data, &size);
3007 play_time = gst_asf_demux_get_uint64 (&data, &size);
3008 send_time = gst_asf_demux_get_uint64 (&data, &size);
3009 preroll = gst_asf_demux_get_uint64 (&data, &size);
3010 flags = gst_asf_demux_get_uint32 (&data, &size);
3011 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3012 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3013 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3015 demux->broadcast = ! !(flags & 0x01);
3016 demux->seekable = ! !(flags & 0x02);
3018 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3019 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3020 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3022 if (demux->broadcast) {
3023 /* these fields are invalid if the broadcast flag is set */
3028 if (min_pktsize != max_pktsize)
3029 goto non_fixed_packet_size;
3031 demux->packet_size = max_pktsize;
3033 /* FIXME: do we need send_time as well? what is it? */
3034 if ((play_time * 100) >= (preroll * GST_MSECOND))
3035 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3037 demux->play_time = 0;
3039 demux->preroll = preroll * GST_MSECOND;
3041 /* initial latency */
3042 demux->latency = demux->preroll;
3044 if (demux->play_time == 0)
3045 demux->seekable = FALSE;
3047 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3048 GST_TIME_ARGS (demux->play_time));
3049 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3050 GST_TIME_ARGS (demux->preroll));
3052 if (demux->play_time > 0) {
3053 demux->segment.duration = demux->play_time;
3056 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3058 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3063 non_fixed_packet_size:
3065 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3066 ("packet size must be fixed"));
3067 return GST_FLOW_ERROR;
3071 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3072 ("short read parsing FILE object"));
3073 return GST_FLOW_ERROR;
3077 /* Content Description Object */
3078 static GstFlowReturn
3079 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3083 const gchar *gst_tag;
3088 GST_TAG_TITLE, 0, NULL}, {
3089 GST_TAG_ARTIST, 0, NULL}, {
3090 GST_TAG_COPYRIGHT, 0, NULL}, {
3091 GST_TAG_DESCRIPTION, 0, NULL}, {
3092 GST_TAG_COMMENT, 0, NULL}
3094 GstTagList *taglist;
3095 GValue value = { 0 };
3099 GST_INFO_OBJECT (demux, "object is a comment");
3101 if (size < (2 + 2 + 2 + 2 + 2))
3102 goto not_enough_data;
3104 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3105 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3106 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3107 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3108 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3110 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3111 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3112 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3114 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3115 if (size < tags[i].val_length)
3116 goto not_enough_data;
3118 /* might be just '/0', '/0'... */
3119 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3120 /* convert to UTF-8 */
3121 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3122 "UTF-8", "UTF-16LE", &in, &out, NULL);
3124 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3127 /* parse metadata into taglist */
3128 taglist = gst_tag_list_new_empty ();
3129 g_value_init (&value, G_TYPE_STRING);
3130 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3131 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3132 g_value_set_string (&value, tags[i].val_utf8);
3133 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3134 tags[i].gst_tag, &value, NULL);
3137 g_value_unset (&value);
3139 gst_asf_demux_add_global_tags (demux, taglist);
3141 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3142 g_free (tags[i].val_utf8);
3148 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3149 "comment tag section %d, skipping comment object", i);
3150 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3151 g_free (tags[i].val_utf8);
3152 return GST_FLOW_OK; /* not really fatal */
3156 static GstFlowReturn
3157 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3160 guint16 num_streams, i;
3164 goto not_enough_data;
3166 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3168 GST_INFO ("object is a bitrate properties object with %u streams",
3171 if (size < (num_streams * (2 + 4)))
3172 goto not_enough_data;
3174 for (i = 0; i < num_streams; ++i) {
3178 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3179 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3181 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3182 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3183 stream = gst_asf_demux_get_stream (demux, stream_id);
3185 if (stream->pending_tags == NULL) {
3186 stream->pending_tags =
3187 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3190 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3193 GST_WARNING ("stream id %u is too large", stream_id);
3201 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3202 return GST_FLOW_OK; /* not really fatal */
3206 static GstFlowReturn
3207 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3210 GstFlowReturn ret = GST_FLOW_OK;
3213 /* Get the rest of the header's header */
3214 if (size < (16 + 2 + 4))
3215 goto not_enough_data;
3217 /* skip GUID and two other bytes */
3218 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3219 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3221 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3223 /* FIXME: does data_size include the rest of the header that we have read? */
3224 if (hdr_size > size)
3225 goto not_enough_data;
3227 while (hdr_size > 0) {
3228 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3229 if (ret != GST_FLOW_OK)
3237 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3238 ("short read parsing extended header object"));
3239 return GST_FLOW_ERROR;
3243 static GstFlowReturn
3244 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3250 goto not_enough_data;
3252 if (demux->languages) {
3253 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3254 g_strfreev (demux->languages);
3255 demux->languages = NULL;
3256 demux->num_languages = 0;
3259 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3260 GST_LOG ("%u languages:", demux->num_languages);
3262 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3263 for (i = 0; i < demux->num_languages; ++i) {
3264 guint8 len, *lang_data = NULL;
3267 goto not_enough_data;
3268 len = gst_asf_demux_get_uint8 (&data, &size);
3269 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3272 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3275 /* truncate "en-us" etc. to just "en" */
3276 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3279 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3280 demux->languages[i] = utf8;
3283 goto not_enough_data;
3291 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3292 g_free (demux->languages);
3293 demux->languages = NULL;
3294 return GST_FLOW_OK; /* not fatal */
3298 static GstFlowReturn
3299 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3302 GstClockTime interval;
3305 if (size < (16 + 8 + 4 + 4))
3306 goto not_enough_data;
3309 gst_asf_demux_skip_bytes (16, &data, &size);
3310 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3311 gst_asf_demux_skip_bytes (4, &data, &size);
3312 count = gst_asf_demux_get_uint32 (&data, &size);
3314 demux->sidx_interval = interval;
3315 demux->sidx_num_entries = count;
3316 g_free (demux->sidx_entries);
3317 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3319 for (i = 0; i < count; ++i) {
3320 if (G_UNLIKELY (size <= 6))
3322 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3323 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3324 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3325 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3326 demux->sidx_entries[i].count);
3329 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3336 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3337 return GST_FLOW_OK; /* not fatal */
3341 static GstFlowReturn
3342 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3343 guint8 * data, guint64 size)
3349 if (size < 16 + 2 + (2 * 2))
3350 goto not_enough_data;
3352 gst_asf_demux_get_guid (&guid, &data, &size);
3353 num = gst_asf_demux_get_uint16 (&data, &size);
3356 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3360 if (size < (num * sizeof (guint16)))
3361 goto not_enough_data;
3363 /* read mutually exclusive stream numbers */
3364 mes = g_new (guint8, num + 1);
3365 for (i = 0; i < num; ++i) {
3366 mes[i] = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3367 GST_LOG_OBJECT (demux, "mutually exclusive: stream #%d", mes[i]);
3370 /* add terminator so we can easily get the count or know when to stop */
3371 mes[i] = (guint8) - 1;
3373 demux->mut_ex_streams = g_slist_append (demux->mut_ex_streams, mes);
3380 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3381 return GST_FLOW_OK; /* not absolutely fatal */
3385 static GstFlowReturn
3386 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3389 AsfStreamExtProps esp;
3390 AsfStream *stream = NULL;
3391 AsfObject stream_obj;
3392 guint16 stream_name_count;
3393 guint16 num_payload_ext;
3395 guint8 *stream_obj_data = NULL;
3398 guint i, stream_num;
3401 obj_size = (guint) size;
3404 goto not_enough_data;
3407 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3408 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3409 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3410 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3411 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3412 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3413 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3414 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3415 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3416 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3417 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3418 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3419 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3420 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3421 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3423 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3424 GST_TIME_ARGS (esp.start_time));
3425 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3426 GST_TIME_ARGS (esp.end_time));
3427 GST_INFO ("flags = %08x", esp.flags);
3428 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3429 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3430 GST_INFO ("stream number = %u", stream_num);
3431 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3432 (esp.lang_idx < demux->num_languages) ?
3433 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3434 GST_INFO ("stream name count = %u", stream_name_count);
3436 /* read stream names */
3437 for (i = 0; i < stream_name_count; ++i) {
3438 guint16 stream_lang_idx G_GNUC_UNUSED;
3439 gchar *stream_name = NULL;
3442 goto not_enough_data;
3443 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3444 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3445 goto not_enough_data;
3446 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3447 g_free (stream_name); /* TODO: store names in struct */
3450 /* read payload extension systems stuff */
3451 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3453 if (num_payload_ext > 0)
3454 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3456 esp.payload_extensions = NULL;
3458 for (i = 0; i < num_payload_ext; ++i) {
3459 AsfPayloadExtension ext;
3461 guint32 sys_info_len;
3463 if (size < 16 + 2 + 4)
3464 goto not_enough_data;
3466 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3467 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3468 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3470 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3471 GST_LOG ("payload systems info len = %u", sys_info_len);
3472 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3473 goto not_enough_data;
3475 esp.payload_extensions[i] = ext;
3478 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3480 /* there might be an optional STREAM_INFO object here now; if not, we
3481 * should have parsed the corresponding stream info object already (since
3482 * we are parsing the extended stream properties objects delayed) */
3484 stream = gst_asf_demux_get_stream (demux, stream_num);
3488 /* get size of the stream object */
3489 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3490 goto not_enough_data;
3492 if (stream_obj.id != ASF_OBJ_STREAM)
3493 goto expected_stream_object;
3495 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3496 stream_obj.size > (10 * 1024 * 1024))
3497 goto not_enough_data;
3499 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3501 /* process this stream object later after all the other 'normal' ones
3502 * have been processed (since the others are more important/non-hidden) */
3503 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3504 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3505 goto not_enough_data;
3507 /* parse stream object */
3508 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3509 g_free (stream_obj_data);
3514 stream->ext_props = esp;
3516 /* try to set the framerate */
3517 if (stream->is_video && stream->caps) {
3518 GValue framerate = { 0 };
3522 g_value_init (&framerate, GST_TYPE_FRACTION);
3524 num = GST_SECOND / 100;
3525 denom = esp.avg_time_per_frame;
3527 /* avoid division by 0, assume 25/1 framerate */
3528 denom = GST_SECOND / 2500;
3531 gst_value_set_fraction (&framerate, num, denom);
3533 stream->caps = gst_caps_make_writable (stream->caps);
3534 s = gst_caps_get_structure (stream->caps, 0);
3535 gst_structure_set_value (s, "framerate", &framerate);
3536 g_value_unset (&framerate);
3537 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3538 num, denom, ((gdouble) num) / denom);
3541 /* add language info now if we have it */
3542 if (stream->ext_props.lang_idx < demux->num_languages) {
3543 if (stream->pending_tags == NULL)
3544 stream->pending_tags = gst_tag_list_new_empty ();
3545 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3546 demux->languages[stream->ext_props.lang_idx]);
3547 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3548 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
3552 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
3560 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
3561 return GST_FLOW_OK; /* not absolutely fatal */
3563 expected_stream_object:
3565 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
3566 "object: expected embedded stream object, but got %s object instead!",
3567 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
3568 return GST_FLOW_OK; /* not absolutely fatal */
3572 static const gchar *
3573 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
3577 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
3578 if (g_str_has_prefix (nick, "ASF_OBJ_"))
3579 nick += strlen ("ASF_OBJ_");
3581 if (demux->objpath == NULL) {
3582 demux->objpath = g_strdup (nick);
3586 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
3587 g_free (demux->objpath);
3588 demux->objpath = newpath;
3591 return (const gchar *) demux->objpath;
3595 gst_asf_demux_pop_obj (GstASFDemux * demux)
3599 if ((s = g_strrstr (demux->objpath, "/"))) {
3602 g_free (demux->objpath);
3603 demux->objpath = NULL;
3608 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
3613 /* Parse the queued extended stream property objects and add the info
3614 * to the existing streams or add the new embedded streams, but without
3615 * activating them yet */
3616 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
3617 g_slist_length (demux->ext_stream_props));
3619 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
3620 GstBuffer *buf = GST_BUFFER (l->data);
3623 gst_buffer_map (buf, &map, GST_MAP_READ);
3625 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
3626 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
3627 gst_buffer_unmap (buf, &map);
3628 gst_buffer_unref (buf);
3630 g_slist_free (demux->ext_stream_props);
3631 demux->ext_stream_props = NULL;
3636 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
3640 for (i = 0; i < demux->num_streams; ++i) {
3645 stream = &demux->stream[i];
3647 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
3649 if (stream->active) {
3650 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
3655 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
3658 /* check for each mutual exclusion whether it affects this stream */
3659 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3660 if (*mes == stream->id) {
3661 /* if yes, check if we've already added streams that are mutually
3662 * exclusive with the stream we're about to add */
3663 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
3664 for (j = 0; j < demux->num_streams; ++j) {
3665 /* if the broadcast flag is set, assume the hidden streams aren't
3666 * actually streamed and hide them (or playbin won't work right),
3667 * otherwise assume their data is available */
3668 if (demux->stream[j].id == *mes && demux->broadcast) {
3670 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
3671 "mutually exclusive with already existing stream ID %d, "
3672 "hiding stream", stream->id, demux->stream[j].id);
3684 /* FIXME: we should do stream activation based on preroll data in
3685 * streaming mode too */
3686 if (demux->streaming && !is_hidden)
3687 gst_asf_demux_activate_stream (demux, stream);
3692 static GstFlowReturn
3693 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
3696 GstFlowReturn ret = GST_FLOW_OK;
3698 guint64 obj_data_size;
3700 if (*p_size < ASF_OBJECT_HEADER_SIZE)
3701 return ASF_FLOW_NEED_MORE_DATA;
3703 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
3704 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
3706 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
3708 if (*p_size < obj_data_size)
3709 return ASF_FLOW_NEED_MORE_DATA;
3711 gst_asf_demux_push_obj (demux, obj.id);
3713 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
3716 case ASF_OBJ_STREAM:
3717 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
3721 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
3723 case ASF_OBJ_HEADER:
3724 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
3726 case ASF_OBJ_COMMENT:
3727 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
3730 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
3732 case ASF_OBJ_BITRATE_PROPS:
3734 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
3737 case ASF_OBJ_EXT_CONTENT_DESC:
3739 gst_asf_demux_process_ext_content_desc (demux, *p_data,
3742 case ASF_OBJ_METADATA_OBJECT:
3743 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
3745 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
3748 /* process these later, we might not have parsed the corresponding
3749 * stream object yet */
3750 GST_LOG ("%s: queued for later parsing", demux->objpath);
3751 buf = gst_buffer_new_and_alloc (obj_data_size);
3752 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
3753 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
3757 case ASF_OBJ_LANGUAGE_LIST:
3758 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
3760 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
3761 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
3764 case ASF_OBJ_SIMPLE_INDEX:
3765 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
3767 case ASF_OBJ_CONTENT_ENCRYPTION:
3768 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
3769 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
3770 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
3771 goto error_encrypted;
3772 case ASF_OBJ_CONCEAL_NONE:
3774 case ASF_OBJ_UNDEFINED:
3775 case ASF_OBJ_CODEC_COMMENT:
3777 case ASF_OBJ_PADDING:
3778 case ASF_OBJ_BITRATE_MUTEX:
3779 case ASF_OBJ_COMPATIBILITY:
3780 case ASF_OBJ_INDEX_PLACEHOLDER:
3781 case ASF_OBJ_INDEX_PARAMETERS:
3782 case ASF_OBJ_STREAM_PRIORITIZATION:
3783 case ASF_OBJ_SCRIPT_COMMAND:
3785 /* Unknown/unhandled object, skip it and hope for the best */
3786 GST_INFO ("%s: skipping object", demux->objpath);
3791 /* this can't fail, we checked the number of bytes available before */
3792 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
3794 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
3796 gst_asf_demux_pop_obj (demux);
3803 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
3804 return GST_FLOW_ERROR;
3809 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
3810 GstBuffer ** p_buffer)
3812 GstBuffer *descrambled_buffer;
3813 GstBuffer *scrambled_buffer;
3814 GstBuffer *sub_buffer;
3821 /* descrambled_buffer is initialised in the first iteration */
3822 descrambled_buffer = NULL;
3823 scrambled_buffer = *p_buffer;
3825 if (gst_buffer_get_size (scrambled_buffer) <
3826 demux->ds_packet_size * demux->span)
3829 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
3830 offset += demux->ds_chunk_size) {
3831 off = offset / demux->ds_chunk_size;
3832 row = off / demux->span;
3833 col = off % demux->span;
3834 idx = row + col * demux->ds_packet_size / demux->ds_chunk_size;
3835 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
3836 col, off, demux->ds_chunk_size);
3837 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
3838 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
3839 demux->span, demux->ds_packet_size);
3840 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
3841 gst_buffer_get_size (scrambled_buffer));
3843 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_NONE,
3844 idx * demux->ds_chunk_size, demux->ds_chunk_size);
3846 descrambled_buffer = sub_buffer;
3848 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
3852 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
3853 GST_BUFFER_TIMESTAMP (scrambled_buffer);
3854 GST_BUFFER_DURATION (descrambled_buffer) =
3855 GST_BUFFER_DURATION (scrambled_buffer);
3856 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
3857 GST_BUFFER_OFFSET_END (descrambled_buffer) =
3858 GST_BUFFER_OFFSET_END (scrambled_buffer);
3860 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
3862 gst_buffer_unref (scrambled_buffer);
3863 *p_buffer = descrambled_buffer;
3867 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
3869 GstASFDemux *demux = GST_ASF_DEMUX (element);
3872 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
3874 for (i = 0; i < demux->num_streams; ++i) {
3875 gst_event_ref (event);
3876 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
3877 GST_OBJECT_CAST (element), event)) {
3878 gst_event_unref (event);
3883 gst_event_unref (event);
3887 /* takes ownership of the passed event */
3889 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
3891 gboolean ret = TRUE;
3894 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
3895 GST_EVENT_TYPE_NAME (event));
3897 for (i = 0; i < demux->num_streams; ++i) {
3898 gst_event_ref (event);
3899 ret &= gst_pad_push_event (demux->stream[i].pad, event);
3901 gst_event_unref (event);
3906 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
3910 gboolean res = FALSE;
3912 demux = GST_ASF_DEMUX (parent);
3914 GST_DEBUG ("handling %s query",
3915 gst_query_type_get_name (GST_QUERY_TYPE (query)));
3917 switch (GST_QUERY_TYPE (query)) {
3918 case GST_QUERY_DURATION:
3922 gst_query_parse_duration (query, &format, NULL);
3924 if (format != GST_FORMAT_TIME) {
3925 GST_LOG ("only support duration queries in TIME format");
3929 GST_OBJECT_LOCK (demux);
3931 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
3932 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
3933 GST_TIME_ARGS (demux->segment.duration));
3935 gst_query_set_duration (query, GST_FORMAT_TIME,
3936 demux->segment.duration);
3940 GST_LOG ("duration not known yet");
3943 GST_OBJECT_UNLOCK (demux);
3947 case GST_QUERY_POSITION:{
3950 gst_query_parse_position (query, &format, NULL);
3952 if (format != GST_FORMAT_TIME) {
3953 GST_LOG ("only support position queries in TIME format");
3957 GST_OBJECT_LOCK (demux);
3959 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
3960 GST_LOG ("returning position: %" GST_TIME_FORMAT,
3961 GST_TIME_ARGS (demux->segment.position));
3963 gst_query_set_position (query, GST_FORMAT_TIME,
3964 demux->segment.position);
3968 GST_LOG ("position not known yet");
3971 GST_OBJECT_UNLOCK (demux);
3975 case GST_QUERY_SEEKING:{
3978 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
3979 if (format == GST_FORMAT_TIME) {
3982 GST_OBJECT_LOCK (demux);
3983 duration = demux->segment.duration;
3984 GST_OBJECT_UNLOCK (demux);
3986 if (!demux->streaming || !demux->seekable) {
3987 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
3994 /* try downstream first in TIME */
3995 res = gst_pad_query_default (pad, parent, query);
3997 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
3998 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
3999 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4000 /* if no luck, maybe in BYTES */
4001 if (!seekable || fmt != GST_FORMAT_TIME) {
4004 q = gst_query_new_seeking (GST_FORMAT_BYTES);
4005 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
4006 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
4007 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4008 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4009 if (fmt != GST_FORMAT_BYTES)
4012 gst_query_unref (q);
4013 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4019 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4023 case GST_QUERY_LATENCY:
4026 GstClockTime min, max;
4028 /* preroll delay does not matter in non-live pipeline,
4029 * but we might end up in a live (rtsp) one ... */
4032 res = gst_pad_query_default (pad, parent, query);
4036 gst_query_parse_latency (query, &live, &min, &max);
4038 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4039 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4040 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4042 GST_OBJECT_LOCK (demux);
4044 min += demux->latency;
4046 max += demux->latency;
4047 GST_OBJECT_UNLOCK (demux);
4049 gst_query_set_latency (query, live, min, max);
4053 res = gst_pad_query_default (pad, parent, query);
4060 static GstStateChangeReturn
4061 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4063 GstASFDemux *demux = GST_ASF_DEMUX (element);
4064 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4066 switch (transition) {
4067 case GST_STATE_CHANGE_NULL_TO_READY:{
4068 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4069 demux->need_newsegment = TRUE;
4070 demux->segment_running = FALSE;
4071 demux->accurate = FALSE;
4072 demux->adapter = gst_adapter_new ();
4073 demux->metadata = gst_caps_new_empty ();
4074 demux->global_metadata = gst_structure_new_empty ("metadata");
4075 demux->data_size = 0;
4076 demux->data_offset = 0;
4077 demux->index_offset = 0;
4078 demux->base_offset = 0;
4085 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4086 if (ret == GST_STATE_CHANGE_FAILURE)
4089 switch (transition) {
4090 case GST_STATE_CHANGE_PAUSED_TO_READY:
4091 case GST_STATE_CHANGE_READY_TO_NULL:
4092 gst_asf_demux_reset (demux, FALSE);