1 /* GStreamer ASF/WMV/WMA demuxer
2 * Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) 2006-2009 Tim-Philipp Müller <tim centricular net>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
24 * stop if at end of segment if != end of file, ie. demux->segment.stop
26 * - fix packet parsing:
27 * there's something wrong with timestamps for packets with keyframes,
35 #include <gst/gstutils.h>
36 #include <gst/base/gstbytereader.h>
37 #include <gst/base/gsttypefindhelper.h>
38 #include <gst/riff/riff-media.h>
39 #include <gst/tag/tag.h>
40 #include <gst/gst-i18n-plugin.h>
41 #include <gst/video/video.h>
46 #include "gstasfdemux.h"
47 #include "asfheaders.h"
48 #include "asfpacket.h"
50 static GstStaticPadTemplate gst_asf_demux_sink_template =
51 GST_STATIC_PAD_TEMPLATE ("sink",
54 GST_STATIC_CAPS ("video/x-ms-asf")
57 static GstStaticPadTemplate audio_src_template =
58 GST_STATIC_PAD_TEMPLATE ("audio_%u",
63 static GstStaticPadTemplate video_src_template =
64 GST_STATIC_PAD_TEMPLATE ("video_%u",
69 /* size of an ASF object header, ie. GUID (16 bytes) + object size (8 bytes) */
70 #define ASF_OBJECT_HEADER_SIZE (16+8)
72 /* FIXME: get rid of this */
73 /* abuse this GstFlowReturn enum for internal usage */
74 #define ASF_FLOW_NEED_MORE_DATA 99
76 #define gst_asf_get_flow_name(flow) \
77 (flow == ASF_FLOW_NEED_MORE_DATA) ? \
78 "need-more-data" : gst_flow_get_name (flow)
80 GST_DEBUG_CATEGORY (asfdemux_dbg);
82 static GstStateChangeReturn gst_asf_demux_change_state (GstElement * element,
83 GstStateChange transition);
84 static gboolean gst_asf_demux_element_send_event (GstElement * element,
86 static gboolean gst_asf_demux_send_event_unlocked (GstASFDemux * demux,
88 static gboolean gst_asf_demux_handle_src_query (GstPad * pad,
89 GstObject * parent, GstQuery * query);
90 static GstFlowReturn gst_asf_demux_chain (GstPad * pad, GstObject * parent,
92 static gboolean gst_asf_demux_sink_event (GstPad * pad, GstObject * parent,
94 static GstFlowReturn gst_asf_demux_process_object (GstASFDemux * demux,
95 guint8 ** p_data, guint64 * p_size);
96 static gboolean gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent);
97 static gboolean gst_asf_demux_activate_mode (GstPad * sinkpad,
98 GstObject * parent, GstPadMode mode, gboolean active);
99 static void gst_asf_demux_loop (GstASFDemux * demux);
101 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux);
102 static gboolean gst_asf_demux_pull_headers (GstASFDemux * demux);
103 static void gst_asf_demux_pull_indices (GstASFDemux * demux);
104 static void gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * asf);
106 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data);
107 static void gst_asf_demux_descramble_buffer (GstASFDemux * demux,
108 AsfStream * stream, GstBuffer ** p_buffer);
109 static void gst_asf_demux_activate_stream (GstASFDemux * demux,
111 static GstStructure *gst_asf_demux_get_metadata_for_stream (GstASFDemux * d,
113 static GstFlowReturn gst_asf_demux_push_complete_payloads (GstASFDemux * demux,
116 #define gst_asf_demux_parent_class parent_class
117 G_DEFINE_TYPE (GstASFDemux, gst_asf_demux, GST_TYPE_ELEMENT);
120 gst_asf_demux_class_init (GstASFDemuxClass * klass)
122 GstElementClass *gstelement_class;
124 gstelement_class = (GstElementClass *) klass;
126 gst_element_class_set_static_metadata (gstelement_class, "ASF Demuxer",
128 "Demultiplexes ASF Streams", "Owen Fraser-Green <owen@discobabe.net>");
130 gst_element_class_add_pad_template (gstelement_class,
131 gst_static_pad_template_get (&audio_src_template));
132 gst_element_class_add_pad_template (gstelement_class,
133 gst_static_pad_template_get (&video_src_template));
134 gst_element_class_add_pad_template (gstelement_class,
135 gst_static_pad_template_get (&gst_asf_demux_sink_template));
137 gstelement_class->change_state =
138 GST_DEBUG_FUNCPTR (gst_asf_demux_change_state);
139 gstelement_class->send_event =
140 GST_DEBUG_FUNCPTR (gst_asf_demux_element_send_event);
144 gst_asf_demux_free_stream (GstASFDemux * demux, AsfStream * stream)
146 gst_caps_replace (&stream->caps, NULL);
147 if (stream->pending_tags) {
148 gst_tag_list_unref (stream->pending_tags);
149 stream->pending_tags = NULL;
151 if (stream->streamheader) {
152 gst_buffer_unref (stream->streamheader);
153 stream->streamheader = NULL;
156 if (stream->active) {
157 gst_element_remove_pad (GST_ELEMENT_CAST (demux), stream->pad);
158 gst_flow_combiner_remove_pad (demux->flowcombiner, stream->pad);
160 gst_object_unref (stream->pad);
164 if (stream->payloads) {
165 while (stream->payloads->len > 0) {
169 last = stream->payloads->len - 1;
170 payload = &g_array_index (stream->payloads, AsfPayload, last);
171 gst_buffer_replace (&payload->buf, NULL);
172 g_array_remove_index (stream->payloads, last);
174 g_array_free (stream->payloads, TRUE);
175 stream->payloads = NULL;
177 if (stream->ext_props.valid) {
178 g_free (stream->ext_props.payload_extensions);
179 stream->ext_props.payload_extensions = NULL;
184 gst_asf_demux_reset (GstASFDemux * demux, gboolean chain_reset)
186 GST_LOG_OBJECT (demux, "resetting");
188 gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
189 demux->segment_running = FALSE;
190 if (demux->adapter && !chain_reset) {
191 gst_adapter_clear (demux->adapter);
192 g_object_unref (demux->adapter);
193 demux->adapter = NULL;
195 if (demux->taglist) {
196 gst_tag_list_unref (demux->taglist);
197 demux->taglist = NULL;
199 if (demux->metadata) {
200 gst_caps_unref (demux->metadata);
201 demux->metadata = NULL;
203 if (demux->global_metadata) {
204 gst_structure_free (demux->global_metadata);
205 demux->global_metadata = NULL;
207 if (demux->mut_ex_streams) {
208 g_slist_free (demux->mut_ex_streams);
209 demux->mut_ex_streams = NULL;
212 demux->state = GST_ASF_DEMUX_STATE_HEADER;
213 g_free (demux->objpath);
214 demux->objpath = NULL;
215 g_strfreev (demux->languages);
216 demux->languages = NULL;
217 demux->num_languages = 0;
218 g_slist_foreach (demux->ext_stream_props, (GFunc) gst_mini_object_unref,
220 g_slist_free (demux->ext_stream_props);
221 demux->ext_stream_props = NULL;
223 while (demux->old_num_streams > 0) {
224 gst_asf_demux_free_stream (demux,
225 &demux->old_stream[demux->old_num_streams - 1]);
226 --demux->old_num_streams;
228 memset (demux->old_stream, 0, sizeof (demux->old_stream));
229 demux->old_num_streams = 0;
231 /* when resetting for a new chained asf, we don't want to remove the pads
232 * before adding the new ones */
234 memcpy (demux->old_stream, demux->stream, sizeof (demux->stream));
235 demux->old_num_streams = demux->num_streams;
236 demux->num_streams = 0;
239 while (demux->num_streams > 0) {
240 gst_asf_demux_free_stream (demux, &demux->stream[demux->num_streams - 1]);
241 --demux->num_streams;
243 memset (demux->stream, 0, sizeof (demux->stream));
245 /* do not remove those for not adding pads with same name */
246 demux->num_audio_streams = 0;
247 demux->num_video_streams = 0;
248 demux->have_group_id = FALSE;
249 demux->group_id = G_MAXUINT;
251 demux->num_streams = 0;
252 demux->activated_streams = FALSE;
253 demux->first_ts = GST_CLOCK_TIME_NONE;
254 demux->segment_ts = GST_CLOCK_TIME_NONE;
257 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
258 demux->state = GST_ASF_DEMUX_STATE_HEADER;
259 demux->seekable = FALSE;
260 demux->broadcast = FALSE;
261 demux->sidx_interval = 0;
262 demux->sidx_num_entries = 0;
263 g_free (demux->sidx_entries);
264 demux->sidx_entries = NULL;
266 demux->speed_packets = 1;
268 demux->asf_3D_mode = GST_ASF_3D_NONE;
271 GST_LOG_OBJECT (demux, "Restarting");
272 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
273 demux->need_newsegment = TRUE;
274 demux->segment_seqnum = 0;
275 demux->segment_running = FALSE;
276 demux->accurate = FALSE;
277 demux->metadata = gst_caps_new_empty ();
278 demux->global_metadata = gst_structure_new_empty ("metadata");
279 demux->data_size = 0;
280 demux->data_offset = 0;
281 demux->index_offset = 0;
283 demux->base_offset = 0;
286 g_slist_free (demux->other_streams);
287 demux->other_streams = NULL;
291 gst_asf_demux_init (GstASFDemux * demux)
294 gst_pad_new_from_static_template (&gst_asf_demux_sink_template, "sink");
295 gst_pad_set_chain_function (demux->sinkpad,
296 GST_DEBUG_FUNCPTR (gst_asf_demux_chain));
297 gst_pad_set_event_function (demux->sinkpad,
298 GST_DEBUG_FUNCPTR (gst_asf_demux_sink_event));
299 gst_pad_set_activate_function (demux->sinkpad,
300 GST_DEBUG_FUNCPTR (gst_asf_demux_activate));
301 gst_pad_set_activatemode_function (demux->sinkpad,
302 GST_DEBUG_FUNCPTR (gst_asf_demux_activate_mode));
303 gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
305 /* set initial state */
306 gst_asf_demux_reset (demux, FALSE);
310 gst_asf_demux_activate (GstPad * sinkpad, GstObject * parent)
315 query = gst_query_new_scheduling ();
317 if (!gst_pad_peer_query (sinkpad, query)) {
318 gst_query_unref (query);
322 pull_mode = gst_query_has_scheduling_mode_with_flags (query,
323 GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
324 gst_query_unref (query);
329 GST_DEBUG_OBJECT (sinkpad, "activating pull");
330 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
334 GST_DEBUG_OBJECT (sinkpad, "activating push");
335 return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
340 gst_asf_demux_activate_mode (GstPad * sinkpad, GstObject * parent,
341 GstPadMode mode, gboolean active)
346 demux = GST_ASF_DEMUX (parent);
349 case GST_PAD_MODE_PUSH:
350 demux->state = GST_ASF_DEMUX_STATE_HEADER;
351 demux->streaming = TRUE;
354 case GST_PAD_MODE_PULL:
356 demux->state = GST_ASF_DEMUX_STATE_HEADER;
357 demux->streaming = FALSE;
359 res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_asf_demux_loop,
362 res = gst_pad_stop_task (sinkpad);
373 gst_asf_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
378 demux = GST_ASF_DEMUX (parent);
380 GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
381 switch (GST_EVENT_TYPE (event)) {
382 case GST_EVENT_SEGMENT:{
383 const GstSegment *segment;
385 gst_event_parse_segment (event, &segment);
387 if (segment->format == GST_FORMAT_BYTES) {
388 if (demux->packet_size && segment->start > demux->data_offset)
389 demux->packet = (segment->start - demux->data_offset) /
393 } else if (segment->format == GST_FORMAT_TIME) {
394 /* do not know packet position, not really a problem */
397 GST_WARNING_OBJECT (demux, "unsupported newsegment format, ignoring");
398 gst_event_unref (event);
402 /* record upstream segment for interpolation */
403 if (segment->format != demux->in_segment.format)
404 gst_segment_init (&demux->in_segment, GST_FORMAT_UNDEFINED);
405 gst_segment_copy_into (segment, &demux->in_segment);
407 /* in either case, clear some state and generate newsegment later on */
408 GST_OBJECT_LOCK (demux);
409 demux->segment_ts = GST_CLOCK_TIME_NONE;
410 demux->in_gap = GST_CLOCK_TIME_NONE;
411 demux->need_newsegment = TRUE;
412 demux->segment_seqnum = gst_event_get_seqnum (event);
413 gst_asf_demux_reset_stream_state_after_discont (demux);
414 GST_OBJECT_UNLOCK (demux);
416 gst_event_unref (event);
422 if (demux->state == GST_ASF_DEMUX_STATE_HEADER) {
423 GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
424 (_("This stream contains no data.")),
425 ("got eos and didn't receive a complete header object"));
428 flow = gst_asf_demux_push_complete_payloads (demux, TRUE);
429 if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
430 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
431 (_("Internal data stream error.")),
432 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
436 GST_OBJECT_LOCK (demux);
437 gst_adapter_clear (demux->adapter);
438 GST_OBJECT_UNLOCK (demux);
439 gst_asf_demux_send_event_unlocked (demux, event);
443 case GST_EVENT_FLUSH_STOP:
444 GST_OBJECT_LOCK (demux);
445 gst_asf_demux_reset_stream_state_after_discont (demux);
446 GST_OBJECT_UNLOCK (demux);
447 gst_asf_demux_send_event_unlocked (demux, event);
448 /* upon activation, latency is no longer introduced, e.g. after seek */
449 if (demux->activated_streams)
454 ret = gst_pad_event_default (pad, parent, event);
462 gst_asf_demux_seek_index_lookup (GstASFDemux * demux, guint * packet,
463 GstClockTime seek_time, GstClockTime * p_idx_time, guint * speed,
464 gboolean next, gboolean * eos)
466 GstClockTime idx_time;
472 if (G_UNLIKELY (demux->sidx_num_entries == 0 || demux->sidx_interval == 0))
475 idx = (guint) ((seek_time + demux->preroll) / demux->sidx_interval);
478 /* if we want the next keyframe, we have to go forward till we find
479 a different packet number */
481 if (idx >= demux->sidx_num_entries - 1) {
482 /* If we get here, we're asking for next keyframe after the last one. There isn't one. */
487 for (idx2 = idx + 1; idx2 < demux->sidx_num_entries; ++idx2) {
488 if (demux->sidx_entries[idx].packet != demux->sidx_entries[idx2].packet) {
495 if (G_UNLIKELY (idx >= demux->sidx_num_entries)) {
501 *packet = demux->sidx_entries[idx].packet;
503 *speed = demux->sidx_entries[idx].count;
505 /* so we get closer to the actual time of the packet ... actually, let's not
506 * do this, since we throw away superfluous payloads before the seek position
507 * anyway; this way, our key unit seek 'snap resolution' is a bit better
508 * (ie. same as index resolution) */
510 while (idx > 0 && demux->sidx_entries[idx-1] == demux->sidx_entries[idx])
514 idx_time = demux->sidx_interval * idx;
515 if (G_LIKELY (idx_time >= demux->preroll))
516 idx_time -= demux->preroll;
518 GST_DEBUG_OBJECT (demux, "%" GST_TIME_FORMAT " => packet %u at %"
519 GST_TIME_FORMAT, GST_TIME_ARGS (seek_time), *packet,
520 GST_TIME_ARGS (idx_time));
522 if (G_LIKELY (p_idx_time))
523 *p_idx_time = idx_time;
529 gst_asf_demux_reset_stream_state_after_discont (GstASFDemux * demux)
533 gst_adapter_clear (demux->adapter);
535 GST_DEBUG_OBJECT (demux, "reset stream state");
537 gst_flow_combiner_reset (demux->flowcombiner);
538 for (n = 0; n < demux->num_streams; n++) {
539 demux->stream[n].discont = TRUE;
540 demux->stream[n].first_buffer = TRUE;
542 while (demux->stream[n].payloads->len > 0) {
546 last = demux->stream[n].payloads->len - 1;
547 payload = &g_array_index (demux->stream[n].payloads, AsfPayload, last);
548 gst_buffer_replace (&payload->buf, NULL);
549 g_array_remove_index (demux->stream[n].payloads, last);
555 gst_asf_demux_mark_discont (GstASFDemux * demux)
559 GST_DEBUG_OBJECT (demux, "Mark stream discont");
561 for (n = 0; n < demux->num_streams; n++)
562 demux->stream[n].discont = TRUE;
565 /* do a seek in push based mode */
567 gst_asf_demux_handle_seek_push (GstASFDemux * demux, GstEvent * event)
572 GstSeekType cur_type, stop_type;
576 GstEvent *byte_event;
578 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
581 stop_type = GST_SEEK_TYPE_NONE;
584 GST_DEBUG_OBJECT (demux, "seeking to %" GST_TIME_FORMAT, GST_TIME_ARGS (cur));
586 /* determine packet, by index or by estimation */
587 if (!gst_asf_demux_seek_index_lookup (demux, &packet, cur, NULL, NULL, FALSE,
590 (guint) gst_util_uint64_scale (demux->num_packets, cur,
594 if (packet > demux->num_packets) {
595 GST_DEBUG_OBJECT (demux, "could not determine packet to seek to, "
600 GST_DEBUG_OBJECT (demux, "seeking to packet %d", packet);
602 cur = demux->data_offset + ((guint64) packet * demux->packet_size);
604 GST_DEBUG_OBJECT (demux, "Pushing BYTE seek rate %g, "
605 "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT, rate, cur, stop);
606 /* BYTE seek event */
607 byte_event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type,
608 cur, stop_type, stop);
609 gst_event_set_seqnum (byte_event, gst_event_get_seqnum (event));
610 res = gst_pad_push_event (demux->sinkpad, byte_event);
616 gst_asf_demux_handle_seek_event (GstASFDemux * demux, GstEvent * event)
618 GstClockTime idx_time;
621 GstSeekType cur_type, stop_type;
623 gboolean only_need_update;
624 gboolean keyunit_sync, after, before, next;
629 guint packet, speed_count = 1;
634 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
637 if (G_UNLIKELY (format != GST_FORMAT_TIME)) {
638 GST_LOG_OBJECT (demux, "seeking is only supported in TIME format");
642 /* upstream might handle TIME seek, e.g. mms or rtsp, or not, e.g. http,
643 * so first try to let it handle the seek event. */
644 if (gst_pad_push_event (demux->sinkpad, gst_event_ref (event)))
647 if (G_UNLIKELY (demux->seekable == FALSE || demux->packet_size == 0 ||
648 demux->num_packets == 0 || demux->play_time == 0)) {
649 GST_LOG_OBJECT (demux, "stream is not seekable");
653 if (G_UNLIKELY (!demux->activated_streams)) {
654 GST_LOG_OBJECT (demux, "streams not yet activated, ignoring seek");
658 if (G_UNLIKELY (rate <= 0.0)) {
659 GST_LOG_OBJECT (demux, "backward playback is not supported yet");
663 seqnum = gst_event_get_seqnum (event);
664 flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
666 ((flags & GST_SEEK_FLAG_ACCURATE) == GST_SEEK_FLAG_ACCURATE);
667 keyunit_sync = ((flags & GST_SEEK_FLAG_KEY_UNIT) == GST_SEEK_FLAG_KEY_UNIT);
668 after = ((flags & GST_SEEK_FLAG_SNAP_AFTER) == GST_SEEK_FLAG_SNAP_AFTER);
669 before = ((flags & GST_SEEK_FLAG_SNAP_BEFORE) == GST_SEEK_FLAG_SNAP_BEFORE);
670 next = after && !before;
672 if (G_UNLIKELY (demux->streaming)) {
673 /* support it safely needs more segment handling, e.g. closing etc */
675 GST_LOG_OBJECT (demux, "streaming; non-flushing seek not supported");
678 /* we can (re)construct the start later on, but not the end */
679 if (stop_type != GST_SEEK_TYPE_NONE &&
680 (stop_type != GST_SEEK_TYPE_SET || GST_CLOCK_TIME_IS_VALID (stop))) {
681 GST_LOG_OBJECT (demux, "streaming; end position must be NONE");
684 return gst_asf_demux_handle_seek_push (demux, event);
687 /* unlock the streaming thread */
688 if (G_LIKELY (flush)) {
689 fevent = gst_event_new_flush_start ();
691 gst_event_set_seqnum (fevent, seqnum);
692 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
693 gst_asf_demux_send_event_unlocked (demux, fevent);
695 gst_pad_pause_task (demux->sinkpad);
698 /* grab the stream lock so that streaming cannot continue, for
699 * non flushing seeks when the element is in PAUSED this could block
701 GST_PAD_STREAM_LOCK (demux->sinkpad);
703 /* we now can stop flushing, since we have the stream lock now */
704 fevent = gst_event_new_flush_stop (TRUE);
705 gst_event_set_seqnum (fevent, seqnum);
706 gst_pad_push_event (demux->sinkpad, gst_event_ref (fevent));
708 if (G_LIKELY (flush))
709 gst_asf_demux_send_event_unlocked (demux, fevent);
711 gst_event_unref (fevent);
713 /* operating on copy of segment until we know the seek worked */
714 segment = demux->segment;
716 if (G_UNLIKELY (demux->segment_running && !flush)) {
717 GstSegment newsegment;
720 /* create the segment event to close the current segment */
721 gst_segment_copy_into (&segment, &newsegment);
722 newseg = gst_event_new_segment (&newsegment);
723 gst_event_set_seqnum (newseg, seqnum);
725 gst_asf_demux_send_event_unlocked (demux, newseg);
728 gst_segment_do_seek (&segment, rate, format, flags, cur_type,
729 cur, stop_type, stop, &only_need_update);
731 GST_DEBUG_OBJECT (demux, "seeking to time %" GST_TIME_FORMAT ", segment: "
732 "%" GST_SEGMENT_FORMAT, GST_TIME_ARGS (segment.start), &segment);
734 if (cur_type != GST_SEEK_TYPE_SET)
735 seek_time = segment.start;
739 /* FIXME: should check the KEY_UNIT flag; need to adjust position to
740 * real start of data and segment_start to indexed time for key unit seek*/
741 if (G_UNLIKELY (!gst_asf_demux_seek_index_lookup (demux, &packet, seek_time,
742 &idx_time, &speed_count, next, &eos))) {
746 demux->packet = demux->num_packets;
750 /* First try to query our source to see if it can convert for us. This is
751 the case when our source is an mms stream, notice that in this case
752 gstmms will do a time based seek to get the byte offset, this is not a
753 problem as the seek to this offset needs to happen anway. */
754 if (gst_pad_peer_query_convert (demux->sinkpad, GST_FORMAT_TIME, seek_time,
755 GST_FORMAT_BYTES, &offset)) {
756 packet = (offset - demux->data_offset) / demux->packet_size;
757 GST_LOG_OBJECT (demux, "convert %" GST_TIME_FORMAT
758 " to bytes query result: %" G_GINT64_FORMAT ", data_ofset: %"
759 G_GINT64_FORMAT ", packet_size: %u," " resulting packet: %u\n",
760 GST_TIME_ARGS (seek_time), offset, demux->data_offset,
761 demux->packet_size, packet);
763 /* FIXME: For streams containing video, seek to an earlier position in
764 * the hope of hitting a keyframe and let the sinks throw away the stuff
765 * before the segment start. For audio-only this is unnecessary as every
767 if (flush && (demux->accurate || (keyunit_sync && !next))
768 && demux->num_video_streams > 0) {
769 seek_time -= 5 * GST_SECOND;
774 packet = (guint) gst_util_uint64_scale (demux->num_packets,
775 seek_time, demux->play_time);
777 if (packet > demux->num_packets)
778 packet = demux->num_packets;
781 if (G_LIKELY (keyunit_sync)) {
782 GST_DEBUG_OBJECT (demux, "key unit seek, adjust seek_time = %"
783 GST_TIME_FORMAT " to index_time = %" GST_TIME_FORMAT,
784 GST_TIME_ARGS (seek_time), GST_TIME_ARGS (idx_time));
785 segment.start = idx_time;
786 segment.position = idx_time;
787 segment.time = idx_time;
791 GST_DEBUG_OBJECT (demux, "seeking to packet %u (%d)", packet, speed_count);
793 GST_OBJECT_LOCK (demux);
794 demux->segment = segment;
795 demux->packet = packet;
796 demux->need_newsegment = TRUE;
797 demux->segment_seqnum = seqnum;
798 demux->speed_packets = speed_count;
799 gst_asf_demux_reset_stream_state_after_discont (demux);
800 GST_OBJECT_UNLOCK (demux);
803 /* restart our task since it might have been stopped when we did the flush */
804 gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_asf_demux_loop,
807 /* streaming can continue now */
808 GST_PAD_STREAM_UNLOCK (demux->sinkpad);
814 gst_asf_demux_handle_src_event (GstPad * pad, GstObject * parent,
820 demux = GST_ASF_DEMUX (parent);
822 switch (GST_EVENT_TYPE (event)) {
824 GST_LOG_OBJECT (pad, "seek event");
825 ret = gst_asf_demux_handle_seek_event (demux, event);
826 gst_event_unref (event);
829 case GST_EVENT_NAVIGATION:
830 /* just drop these two silently */
831 gst_event_unref (event);
835 GST_LOG_OBJECT (pad, "%s event", GST_EVENT_TYPE_NAME (event));
836 ret = gst_pad_event_default (pad, parent, event);
843 static inline guint32
844 gst_asf_demux_identify_guid (const ASFGuidHash * guids, ASFGuid * guid)
848 ret = gst_asf_identify_guid (guids, guid);
850 GST_LOG ("%s 0x%08x-0x%08x-0x%08x-0x%08x",
851 gst_asf_get_guid_nick (guids, ret),
852 guid->v1, guid->v2, guid->v3, guid->v4);
864 /* expect is true when the user is expeting an object,
865 * when false, it will give no warnings if the object
869 asf_demux_peek_object (GstASFDemux * demux, const guint8 * data,
870 guint data_len, AsfObject * object, gboolean expect)
874 if (data_len < ASF_OBJECT_HEADER_SIZE)
877 guid.v1 = GST_READ_UINT32_LE (data + 0);
878 guid.v2 = GST_READ_UINT32_LE (data + 4);
879 guid.v3 = GST_READ_UINT32_LE (data + 8);
880 guid.v4 = GST_READ_UINT32_LE (data + 12);
882 object->size = GST_READ_UINT64_LE (data + 16);
884 /* FIXME: make asf_demux_identify_object_guid() */
885 object->id = gst_asf_demux_identify_guid (asf_object_guids, &guid);
886 if (object->id == ASF_OBJ_UNDEFINED && expect) {
887 GST_WARNING_OBJECT (demux, "Unknown object %08x-%08x-%08x-%08x",
888 guid.v1, guid.v2, guid.v3, guid.v4);
895 gst_asf_demux_release_old_pads (GstASFDemux * demux)
897 GST_DEBUG_OBJECT (demux, "Releasing old pads");
899 while (demux->old_num_streams > 0) {
900 gst_pad_push_event (demux->old_stream[demux->old_num_streams - 1].pad,
901 gst_event_new_eos ());
902 gst_asf_demux_free_stream (demux,
903 &demux->old_stream[demux->old_num_streams - 1]);
904 --demux->old_num_streams;
906 memset (demux->old_stream, 0, sizeof (demux->old_stream));
907 demux->old_num_streams = 0;
911 gst_asf_demux_chain_headers (GstASFDemux * demux)
915 guint8 *header_data, *data = NULL;
916 const guint8 *cdata = NULL;
919 cdata = (guint8 *) gst_adapter_map (demux->adapter, ASF_OBJECT_HEADER_SIZE);
923 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
924 if (obj.id != ASF_OBJ_HEADER)
927 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
929 /* + 50 for non-packet data at beginning of ASF_OBJ_DATA */
930 if (gst_adapter_available (demux->adapter) < obj.size + 50)
933 data = gst_adapter_take (demux->adapter, obj.size + 50);
936 header_size = obj.size;
937 flow = gst_asf_demux_process_object (demux, &header_data, &header_size);
938 if (flow != GST_FLOW_OK)
941 /* calculate where the packet data starts */
942 demux->data_offset = obj.size + 50;
944 /* now parse the beginning of the ASF_OBJ_DATA object */
945 if (!gst_asf_demux_parse_data_object_start (demux, data + obj.size))
948 if (demux->num_streams == 0)
957 GST_LOG_OBJECT (demux, "not enough data in adapter yet");
964 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
965 ("This doesn't seem to be an ASF file"));
967 return GST_FLOW_ERROR;
972 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
973 ("header parsing failed, or no streams found, flow = %s",
974 gst_flow_get_name (flow)));
976 return GST_FLOW_ERROR;
981 gst_asf_demux_pull_data (GstASFDemux * demux, guint64 offset, guint size,
982 GstBuffer ** p_buf, GstFlowReturn * p_flow)
987 GST_LOG_OBJECT (demux, "pulling buffer at %" G_GUINT64_FORMAT "+%u",
990 flow = gst_pad_pull_range (demux->sinkpad, offset, size, p_buf);
992 if (G_LIKELY (p_flow))
995 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
996 GST_DEBUG_OBJECT (demux, "flow %s pulling buffer at %" G_GUINT64_FORMAT
997 "+%u", gst_flow_get_name (flow), offset, size);
1002 g_assert (*p_buf != NULL);
1004 buffer_size = gst_buffer_get_size (*p_buf);
1005 if (G_UNLIKELY (buffer_size < size)) {
1006 GST_DEBUG_OBJECT (demux, "short read pulling buffer at %" G_GUINT64_FORMAT
1007 "+%u (got only %" G_GSIZE_FORMAT " bytes)", offset, size, buffer_size);
1008 gst_buffer_unref (*p_buf);
1009 if (G_LIKELY (p_flow))
1010 *p_flow = GST_FLOW_EOS;
1019 gst_asf_demux_pull_indices (GstASFDemux * demux)
1021 GstBuffer *buf = NULL;
1025 offset = demux->index_offset;
1027 if (G_UNLIKELY (offset == 0)) {
1028 GST_DEBUG_OBJECT (demux, "can't read indices, don't know index offset");
1032 while (gst_asf_demux_pull_data (demux, offset, 16 + 8, &buf, NULL)) {
1038 gst_buffer_map (buf, &map, GST_MAP_READ);
1039 g_assert (map.size >= 16 + 8);
1040 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1041 gst_buffer_unmap (buf, &map);
1042 gst_buffer_replace (&buf, NULL);
1044 /* check for sanity */
1045 if (G_UNLIKELY (obj.size > (5 * 1024 * 1024))) {
1046 GST_DEBUG_OBJECT (demux, "implausible index object size, bailing out");
1050 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, offset, obj.size, &buf,
1054 GST_LOG_OBJECT (demux, "index object at offset 0x%" G_GINT64_MODIFIER "X"
1055 ", size %u", offset, (guint) obj.size);
1057 offset += obj.size; /* increase before _process_object changes it */
1059 gst_buffer_map (buf, &map, GST_MAP_READ);
1060 g_assert (map.size >= obj.size);
1061 bufdata = (guint8 *) map.data;
1062 flow = gst_asf_demux_process_object (demux, &bufdata, &obj.size);
1063 gst_buffer_unmap (buf, &map);
1064 gst_buffer_replace (&buf, NULL);
1066 if (G_UNLIKELY (flow != GST_FLOW_OK))
1071 GST_DEBUG_OBJECT (demux, "read %u index objects", num_read);
1075 gst_asf_demux_parse_data_object_start (GstASFDemux * demux, guint8 * data)
1079 asf_demux_peek_object (demux, data, 50, &obj, TRUE);
1080 if (obj.id != ASF_OBJ_DATA) {
1081 GST_WARNING_OBJECT (demux, "headers not followed by a DATA object");
1085 demux->state = GST_ASF_DEMUX_STATE_DATA;
1087 if (!demux->broadcast && obj.size > 50) {
1088 demux->data_size = obj.size - 50;
1089 /* CHECKME: for at least one file this is off by +158 bytes?! */
1090 demux->index_offset = demux->data_offset + demux->data_size;
1092 demux->data_size = 0;
1093 demux->index_offset = 0;
1098 if (!demux->broadcast) {
1099 /* skip object header (24 bytes) and file GUID (16 bytes) */
1100 demux->num_packets = GST_READ_UINT64_LE (data + (16 + 8) + 16);
1102 demux->num_packets = 0;
1105 if (demux->num_packets == 0)
1106 demux->seekable = FALSE;
1108 /* fallback in the unlikely case that headers are inconsistent, can't hurt */
1109 if (demux->data_size == 0 && demux->num_packets > 0) {
1110 demux->data_size = demux->num_packets * demux->packet_size;
1111 demux->index_offset = demux->data_offset + demux->data_size;
1114 /* process pending stream objects and create pads for those */
1115 gst_asf_demux_process_queued_extended_stream_objects (demux);
1117 GST_INFO_OBJECT (demux, "Stream has %" G_GUINT64_FORMAT " packets, "
1118 "data_offset=%" G_GINT64_FORMAT ", data_size=%" G_GINT64_FORMAT
1119 ", index_offset=%" G_GUINT64_FORMAT, demux->num_packets,
1120 demux->data_offset, demux->data_size, demux->index_offset);
1126 gst_asf_demux_pull_headers (GstASFDemux * demux)
1130 GstBuffer *buf = NULL;
1135 GST_LOG_OBJECT (demux, "reading headers");
1137 /* pull HEADER object header, so we know its size */
1138 if (!gst_asf_demux_pull_data (demux, demux->base_offset, 16 + 8, &buf, NULL))
1141 gst_buffer_map (buf, &map, GST_MAP_READ);
1142 g_assert (map.size >= 16 + 8);
1143 asf_demux_peek_object (demux, map.data, 16 + 8, &obj, TRUE);
1144 gst_buffer_unmap (buf, &map);
1145 gst_buffer_replace (&buf, NULL);
1147 if (obj.id != ASF_OBJ_HEADER)
1150 GST_LOG_OBJECT (demux, "header size = %u", (guint) obj.size);
1152 /* pull HEADER object */
1153 if (!gst_asf_demux_pull_data (demux, demux->base_offset, obj.size, &buf,
1157 size = obj.size; /* don't want obj.size changed */
1158 gst_buffer_map (buf, &map, GST_MAP_READ);
1159 g_assert (map.size >= size);
1160 bufdata = (guint8 *) map.data;
1161 flow = gst_asf_demux_process_object (demux, &bufdata, &size);
1162 gst_buffer_unmap (buf, &map);
1163 gst_buffer_replace (&buf, NULL);
1165 if (flow != GST_FLOW_OK) {
1166 GST_WARNING_OBJECT (demux, "process_object: %s", gst_flow_get_name (flow));
1170 /* calculate where the packet data starts */
1171 demux->data_offset = demux->base_offset + obj.size + 50;
1173 /* now pull beginning of DATA object before packet data */
1174 if (!gst_asf_demux_pull_data (demux, demux->base_offset + obj.size, 50, &buf,
1178 gst_buffer_map (buf, &map, GST_MAP_READ);
1179 g_assert (map.size >= size);
1180 bufdata = (guint8 *) map.data;
1181 if (!gst_asf_demux_parse_data_object_start (demux, bufdata))
1184 if (demux->num_streams == 0)
1187 gst_buffer_unmap (buf, &map);
1188 gst_buffer_replace (&buf, NULL);
1196 gst_buffer_unmap (buf, &map);
1197 gst_buffer_replace (&buf, NULL);
1199 GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
1200 ("This doesn't seem to be an ASF file"));
1209 gst_buffer_unmap (buf, &map);
1210 gst_buffer_replace (&buf, NULL);
1211 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), (NULL));
1217 all_streams_prerolled (GstASFDemux * demux)
1219 GstClockTime preroll_time;
1220 guint i, num_no_data = 0;
1222 /* Allow at least 500ms of preroll_time */
1223 preroll_time = MAX (demux->preroll, 500 * GST_MSECOND);
1225 /* returns TRUE as long as there isn't a stream which (a) has data queued
1226 * and (b) the timestamp of last piece of data queued is < demux->preroll
1227 * AND there is at least one other stream with data queued */
1228 for (i = 0; i < demux->num_streams; ++i) {
1229 AsfPayload *last_payload = NULL;
1233 stream = &demux->stream[i];
1234 if (G_UNLIKELY (stream->payloads->len == 0)) {
1236 GST_LOG_OBJECT (stream->pad, "no data queued");
1240 /* find last payload with timestamp */
1241 for (last_idx = stream->payloads->len - 1;
1242 last_idx >= 0 && (last_payload == NULL
1243 || !GST_CLOCK_TIME_IS_VALID (last_payload->ts)); --last_idx) {
1244 last_payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1247 GST_LOG_OBJECT (stream->pad, "checking if %" GST_TIME_FORMAT " > %"
1248 GST_TIME_FORMAT, GST_TIME_ARGS (last_payload->ts),
1249 GST_TIME_ARGS (preroll_time));
1250 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (last_payload->ts)
1251 || last_payload->ts <= preroll_time)) {
1252 GST_LOG_OBJECT (stream->pad, "not beyond preroll point yet");
1257 if (G_UNLIKELY (num_no_data > 0))
1265 gst_asf_demux_have_mutually_exclusive_active_stream (GstASFDemux * demux,
1270 for (l = demux->mut_ex_streams; l != NULL; l = l->next) {
1273 /* check for each mutual exclusion group whether it affects this stream */
1274 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1275 if (*mes == stream->id) {
1276 /* we are in this group; let's check if we've already activated streams
1277 * that are in the same group (and hence mutually exclusive to this
1279 for (mes = (guint8 *) l->data; mes != NULL && *mes != 0xff; ++mes) {
1282 for (i = 0; i < demux->num_streams; ++i) {
1283 if (demux->stream[i].id == *mes && demux->stream[i].active) {
1284 GST_LOG_OBJECT (demux, "stream with ID %d is mutually exclusive "
1285 "to already active stream with ID %d", stream->id,
1286 demux->stream[i].id);
1291 /* we can only be in this group once, let's break out and move on to
1292 * the next mutual exclusion group */
1303 gst_asf_demux_check_segment_ts (GstASFDemux * demux, GstClockTime payload_ts)
1305 /* remember the first queued timestamp for the segment */
1306 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->segment_ts) &&
1307 GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1308 GST_DEBUG_OBJECT (demux, "segment ts: %" GST_TIME_FORMAT,
1309 GST_TIME_ARGS (demux->first_ts));
1310 demux->segment_ts = payload_ts;
1311 /* always note, but only determines segment when streaming */
1312 if (demux->streaming)
1313 gst_segment_do_seek (&demux->segment, demux->in_segment.rate,
1314 GST_FORMAT_TIME, (GstSeekFlags) demux->segment.flags,
1315 GST_SEEK_TYPE_SET, demux->segment_ts, GST_SEEK_TYPE_NONE, 0, NULL);
1320 gst_asf_demux_check_first_ts (GstASFDemux * demux, gboolean force)
1322 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (demux->first_ts))) {
1323 GstClockTime first_ts = GST_CLOCK_TIME_NONE;
1326 /* go trhough each stream, find smallest timestamp */
1327 for (i = 0; i < demux->num_streams; ++i) {
1330 GstClockTime stream_min_ts = GST_CLOCK_TIME_NONE;
1331 GstClockTime stream_min_ts2 = GST_CLOCK_TIME_NONE; /* second smallest timestamp */
1332 stream = &demux->stream[i];
1334 for (j = 0; j < stream->payloads->len; ++j) {
1335 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1336 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1337 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts)
1338 || stream_min_ts > payload->ts)) {
1339 stream_min_ts = payload->ts;
1341 if (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1342 payload->ts > stream_min_ts &&
1343 (!GST_CLOCK_TIME_IS_VALID (stream_min_ts2)
1344 || stream_min_ts2 > payload->ts)) {
1345 stream_min_ts2 = payload->ts;
1349 /* there are some DVR ms files where first packet has TS of 0 (instead of -1) while subsequent packets have
1350 regular (singificantly larger) timestamps. If we don't deal with it, we may end up with huge gap in timestamps
1351 which makes playback stuck. The 0 timestamp may also be valid though, if the second packet timestamp continues
1352 from it. I havent found a better way to distinguish between these two, except to set an arbitrary boundary
1353 and disregard the first 0 timestamp if the second timestamp is bigger than the boundary) */
1355 if (stream_min_ts == 0 && stream_min_ts2 == GST_CLOCK_TIME_NONE && !force) /* still waiting for the second timestamp */
1358 if (stream_min_ts == 0 && stream_min_ts2 > GST_SECOND) /* first timestamp is 0 and second is significantly larger, disregard the 0 */
1359 stream_min_ts = stream_min_ts2;
1361 /* if we don't have timestamp for this stream, wait for more data */
1362 if (!GST_CLOCK_TIME_IS_VALID (stream_min_ts) && !force)
1365 if (GST_CLOCK_TIME_IS_VALID (stream_min_ts) &&
1366 (!GST_CLOCK_TIME_IS_VALID (first_ts) || first_ts > stream_min_ts))
1367 first_ts = stream_min_ts;
1370 if (!GST_CLOCK_TIME_IS_VALID (first_ts)) /* can happen with force = TRUE */
1373 demux->first_ts = first_ts;
1375 /* update packets queued before we knew first timestamp */
1376 for (i = 0; i < demux->num_streams; ++i) {
1379 stream = &demux->stream[i];
1381 for (j = 0; j < stream->payloads->len; ++j) {
1382 AsfPayload *payload = &g_array_index (stream->payloads, AsfPayload, j);
1383 if (GST_CLOCK_TIME_IS_VALID (payload->ts)) {
1384 if (payload->ts > first_ts)
1385 payload->ts -= first_ts;
1393 gst_asf_demux_check_segment_ts (demux, 0);
1399 gst_asf_demux_update_caps_from_payload (GstASFDemux * demux, AsfStream * stream)
1401 /* try to determine whether the stream is AC-3 or MPEG; In dvr-ms the codecTag is unreliable
1402 and often set wrong, inspecting the data is the only way that seem to be working */
1403 GstTypeFindProbability prob = GST_TYPE_FIND_NONE;
1404 GstCaps *caps = NULL;
1406 GstAdapter *adapter = gst_adapter_new ();
1408 for (i = 0; i < stream->payloads->len && prob < GST_TYPE_FIND_LIKELY; ++i) {
1410 AsfPayload *payload;
1413 payload = &g_array_index (stream->payloads, AsfPayload, i);
1414 gst_adapter_push (adapter, gst_buffer_ref (payload->buf));
1415 len = gst_adapter_available (adapter);
1416 data = gst_adapter_map (adapter, len);
1420 #define MIN_LENGTH 128
1422 /* look for the sync points */
1424 if (len < MIN_LENGTH || /* give typefind something to work on */
1425 (data[0] == 0x0b && data[1] == 0x77) || /* AC-3 sync point */
1426 (data[0] == 0xFF && ((data[1] & 0xF0) >> 4) == 0xF)) /* MPEG sync point */
1432 gst_caps_take (&caps, gst_type_find_helper_for_data (GST_OBJECT (demux),
1435 if (prob < GST_TYPE_FIND_LIKELY) {
1438 if (len > MIN_LENGTH)
1439 /* this wasn't it, look for another sync point */
1443 gst_adapter_unmap (adapter);
1446 gst_object_unref (adapter);
1449 gst_caps_take (&stream->caps, caps);
1457 gst_asf_demux_check_activate_streams (GstASFDemux * demux, gboolean force)
1461 if (demux->activated_streams)
1464 if (G_UNLIKELY (!gst_asf_demux_check_first_ts (demux, force)))
1467 if (!all_streams_prerolled (demux) && !force) {
1468 GST_DEBUG_OBJECT (demux, "not all streams with data beyond preroll yet");
1472 for (i = 0; i < demux->num_streams; ++i) {
1473 AsfStream *stream = &demux->stream[i];
1475 if (stream->payloads->len > 0) {
1477 if (stream->inspect_payload && /* dvr-ms required payload inspection */
1478 !stream->active && /* do not inspect active streams (caps were already set) */
1479 !gst_asf_demux_update_caps_from_payload (demux, stream) && /* failed to determine caps */
1480 stream->payloads->len < 20) { /* if we couldn't determine the caps from 20 packets then just give up and use whatever was in codecTag */
1481 /* try to gather some more data */
1484 /* we don't check mutual exclusion stuff here; either we have data for
1485 * a stream, then we active it, or we don't, then we'll ignore it */
1486 GST_LOG_OBJECT (stream->pad, "is prerolled - activate!");
1487 gst_asf_demux_activate_stream (demux, stream);
1489 GST_LOG_OBJECT (stream->pad, "no data, ignoring stream");
1493 gst_asf_demux_release_old_pads (demux);
1495 demux->activated_streams = TRUE;
1496 GST_LOG_OBJECT (demux, "signalling no more pads");
1497 gst_element_no_more_pads (GST_ELEMENT (demux));
1501 /* returns the stream that has a complete payload with the lowest timestamp
1502 * queued, or NULL (we push things by timestamp because during the internal
1503 * prerolling we might accumulate more data then the external queues can take,
1504 * so we'd lock up if we pushed all accumulated data for stream N in one go) */
1506 gst_asf_demux_find_stream_with_complete_payload (GstASFDemux * demux)
1508 AsfPayload *best_payload = NULL;
1509 AsfStream *best_stream = NULL;
1512 for (i = 0; i < demux->num_streams; ++i) {
1516 stream = &demux->stream[i];
1518 /* Don't push any data until we have at least one payload that falls within
1519 * the current segment. This way we can remove out-of-segment payloads that
1520 * don't need to be decoded after a seek, sending only data from the
1521 * keyframe directly before our segment start */
1522 if (stream->payloads->len > 0) {
1523 AsfPayload *payload = NULL;
1526 /* find last payload with timestamp */
1527 for (last_idx = stream->payloads->len - 1;
1528 last_idx >= 0 && (payload == NULL
1529 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); --last_idx) {
1530 payload = &g_array_index (stream->payloads, AsfPayload, last_idx);
1533 /* if this is first payload after seek we might need to update the segment */
1534 if (GST_CLOCK_TIME_IS_VALID (payload->ts))
1535 gst_asf_demux_check_segment_ts (demux, payload->ts);
1537 if (G_UNLIKELY (GST_CLOCK_TIME_IS_VALID (payload->ts) &&
1538 (payload->ts < demux->segment.start))) {
1539 if (G_UNLIKELY ((!demux->accurate) && payload->keyframe)) {
1540 GST_DEBUG_OBJECT (stream->pad,
1541 "Found keyframe, updating segment start to %" GST_TIME_FORMAT,
1542 GST_TIME_ARGS (payload->ts));
1543 demux->segment.start = payload->ts;
1544 demux->segment.time = payload->ts;
1546 GST_DEBUG_OBJECT (stream->pad, "Last queued payload has timestamp %"
1547 GST_TIME_FORMAT " which is before our segment start %"
1548 GST_TIME_FORMAT ", not pushing yet", GST_TIME_ARGS (payload->ts),
1549 GST_TIME_ARGS (demux->segment.start));
1554 /* Now see if there's a complete payload queued for this stream */
1557 /* find first complete payload with timestamp */
1559 j < stream->payloads->len && (payload == NULL
1560 || !GST_CLOCK_TIME_IS_VALID (payload->ts)); ++j) {
1561 payload = &g_array_index (stream->payloads, AsfPayload, j);
1564 if (!gst_asf_payload_is_complete (payload))
1567 /* ... and whether its timestamp is lower than the current best */
1568 if (best_stream == NULL || best_payload->ts > payload->ts) {
1569 best_stream = stream;
1570 best_payload = payload;
1578 static GstFlowReturn
1579 gst_asf_demux_push_complete_payloads (GstASFDemux * demux, gboolean force)
1582 GstFlowReturn ret = GST_FLOW_OK;
1584 if (G_UNLIKELY (!demux->activated_streams)) {
1585 if (!gst_asf_demux_check_activate_streams (demux, force))
1587 /* streams are now activated */
1590 while ((stream = gst_asf_demux_find_stream_with_complete_payload (demux))) {
1591 AsfPayload *payload;
1593 /* wait until we had a chance to "lock on" some payload's timestamp */
1594 if (G_UNLIKELY (demux->need_newsegment
1595 && !GST_CLOCK_TIME_IS_VALID (demux->segment_ts)))
1598 payload = &g_array_index (stream->payloads, AsfPayload, 0);
1600 /* do we need to send a newsegment event */
1601 if ((G_UNLIKELY (demux->need_newsegment))) {
1602 GstEvent *segment_event;
1604 /* safe default if insufficient upstream info */
1605 if (!GST_CLOCK_TIME_IS_VALID (demux->in_gap))
1608 if (demux->segment.stop == GST_CLOCK_TIME_NONE &&
1609 demux->segment.duration > 0) {
1610 /* slight HACK; prevent clipping of last bit */
1611 demux->segment.stop = demux->segment.duration + demux->in_gap;
1614 /* FIXME : only if ACCURATE ! */
1615 if (G_LIKELY (!demux->accurate
1616 && (GST_CLOCK_TIME_IS_VALID (payload->ts)))) {
1617 GST_DEBUG ("Adjusting newsegment start to %" GST_TIME_FORMAT,
1618 GST_TIME_ARGS (payload->ts));
1619 demux->segment.start = payload->ts;
1620 demux->segment.time = payload->ts;
1623 GST_DEBUG_OBJECT (demux, "sending new-segment event %" GST_SEGMENT_FORMAT,
1626 /* note: we fix up all timestamps to start from 0, so this should be ok */
1627 segment_event = gst_event_new_segment (&demux->segment);
1628 if (demux->segment_seqnum)
1629 gst_event_set_seqnum (segment_event, demux->segment_seqnum);
1630 gst_asf_demux_send_event_unlocked (demux, segment_event);
1632 /* now post any global tags we may have found */
1633 if (demux->taglist == NULL) {
1634 demux->taglist = gst_tag_list_new_empty ();
1635 gst_tag_list_set_scope (demux->taglist, GST_TAG_SCOPE_GLOBAL);
1638 gst_tag_list_add (demux->taglist, GST_TAG_MERGE_REPLACE,
1639 GST_TAG_CONTAINER_FORMAT, "ASF", NULL);
1641 GST_DEBUG_OBJECT (demux, "global tags: %" GST_PTR_FORMAT, demux->taglist);
1642 gst_asf_demux_send_event_unlocked (demux,
1643 gst_event_new_tag (demux->taglist));
1644 demux->taglist = NULL;
1646 demux->need_newsegment = FALSE;
1647 demux->segment_seqnum = 0;
1648 demux->segment_running = TRUE;
1651 /* Do we have tags pending for this stream? */
1652 if (G_UNLIKELY (stream->pending_tags)) {
1653 GST_LOG_OBJECT (stream->pad, "%" GST_PTR_FORMAT, stream->pending_tags);
1654 gst_pad_push_event (stream->pad,
1655 gst_event_new_tag (stream->pending_tags));
1656 stream->pending_tags = NULL;
1659 /* We have the whole packet now so we should push the packet to
1660 * the src pad now. First though we should check if we need to do
1662 if (G_UNLIKELY (stream->span > 1)) {
1663 gst_asf_demux_descramble_buffer (demux, stream, &payload->buf);
1666 payload->buf = gst_buffer_make_writable (payload->buf);
1668 if (G_LIKELY (!payload->keyframe)) {
1669 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DELTA_UNIT);
1672 if (G_UNLIKELY (stream->discont)) {
1673 GST_DEBUG_OBJECT (stream->pad, "marking DISCONT on stream");
1674 GST_BUFFER_FLAG_SET (payload->buf, GST_BUFFER_FLAG_DISCONT);
1675 stream->discont = FALSE;
1678 if (G_UNLIKELY (stream->is_video && payload->par_x && payload->par_y &&
1679 (payload->par_x != stream->par_x) &&
1680 (payload->par_y != stream->par_y))) {
1681 GST_DEBUG ("Updating PAR (%d/%d => %d/%d)",
1682 stream->par_x, stream->par_y, payload->par_x, payload->par_y);
1683 stream->par_x = payload->par_x;
1684 stream->par_y = payload->par_y;
1685 stream->caps = gst_caps_make_writable (stream->caps);
1686 gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
1687 GST_TYPE_FRACTION, stream->par_x, stream->par_y, NULL);
1688 gst_pad_set_caps (stream->pad, stream->caps);
1691 if (G_UNLIKELY (stream->interlaced != payload->interlaced)) {
1692 GST_DEBUG ("Updating interlaced status (%d => %d)", stream->interlaced,
1693 payload->interlaced);
1694 stream->interlaced = payload->interlaced;
1695 stream->caps = gst_caps_make_writable (stream->caps);
1696 gst_caps_set_simple (stream->caps, "interlace-mode", G_TYPE_BOOLEAN,
1697 (stream->interlaced ? "mixed" : "progressive"), NULL);
1698 gst_pad_set_caps (stream->pad, stream->caps);
1701 /* (sort of) interpolate timestamps using upstream "frame of reference",
1702 * typically useful for live src, but might (unavoidably) mess with
1703 * position reporting if a live src is playing not so live content
1704 * (e.g. rtspsrc taking some time to fall back to tcp) */
1705 GST_BUFFER_PTS (payload->buf) = payload->ts;
1706 if (GST_BUFFER_PTS_IS_VALID (payload->buf)) {
1707 GST_BUFFER_PTS (payload->buf) += demux->in_gap;
1709 if (payload->duration == GST_CLOCK_TIME_NONE
1710 && stream->ext_props.avg_time_per_frame != 0)
1711 GST_BUFFER_DURATION (payload->buf) =
1712 stream->ext_props.avg_time_per_frame * 100;
1714 GST_BUFFER_DURATION (payload->buf) = payload->duration;
1716 /* FIXME: we should really set durations on buffers if we can */
1718 GST_LOG_OBJECT (stream->pad, "pushing buffer, %" GST_PTR_FORMAT,
1721 if (stream->active) {
1722 if (G_UNLIKELY (stream->first_buffer)) {
1723 if (stream->streamheader != NULL) {
1724 GST_DEBUG_OBJECT (stream->pad,
1725 "Pushing streamheader before first buffer");
1726 gst_pad_push (stream->pad, gst_buffer_ref (stream->streamheader));
1728 stream->first_buffer = FALSE;
1731 ret = gst_pad_push (stream->pad, payload->buf);
1732 ret = gst_flow_combiner_update_flow (demux->flowcombiner, ret);
1734 gst_buffer_unref (payload->buf);
1737 payload->buf = NULL;
1738 g_array_remove_index (stream->payloads, 0);
1740 /* Break out as soon as we have an issue */
1741 if (G_UNLIKELY (ret != GST_FLOW_OK))
1749 gst_asf_demux_check_buffer_is_header (GstASFDemux * demux, GstBuffer * buf)
1753 g_assert (buf != NULL);
1755 GST_LOG_OBJECT (demux, "Checking if buffer is a header");
1757 gst_buffer_map (buf, &map, GST_MAP_READ);
1759 /* we return false on buffer too small */
1760 if (map.size < ASF_OBJECT_HEADER_SIZE) {
1761 gst_buffer_unmap (buf, &map);
1765 /* check if it is a header */
1766 asf_demux_peek_object (demux, map.data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
1767 gst_buffer_unmap (buf, &map);
1768 if (obj.id == ASF_OBJ_HEADER) {
1775 gst_asf_demux_check_chained_asf (GstASFDemux * demux)
1777 guint64 off = demux->data_offset + (demux->packet * demux->packet_size);
1778 GstFlowReturn ret = GST_FLOW_OK;
1779 GstBuffer *buf = NULL;
1780 gboolean header = FALSE;
1782 /* TODO maybe we should skip index objects after the data and look
1783 * further for a new header */
1784 if (gst_asf_demux_pull_data (demux, off, ASF_OBJECT_HEADER_SIZE, &buf, &ret)) {
1785 g_assert (buf != NULL);
1786 /* check if it is a header */
1787 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1788 GST_DEBUG_OBJECT (demux, "new base offset: %" G_GUINT64_FORMAT, off);
1789 demux->base_offset = off;
1793 gst_buffer_unref (buf);
1800 gst_asf_demux_loop (GstASFDemux * demux)
1802 GstFlowReturn flow = GST_FLOW_OK;
1803 GstBuffer *buf = NULL;
1805 gboolean sent_eos = FALSE;
1807 if (G_UNLIKELY (demux->state == GST_ASF_DEMUX_STATE_HEADER)) {
1808 if (!gst_asf_demux_pull_headers (demux)) {
1809 flow = GST_FLOW_ERROR;
1813 gst_asf_demux_pull_indices (demux);
1816 g_assert (demux->state == GST_ASF_DEMUX_STATE_DATA);
1818 if (G_UNLIKELY (demux->num_packets != 0
1819 && demux->packet >= demux->num_packets))
1822 GST_LOG_OBJECT (demux, "packet %u/%u", (guint) demux->packet + 1,
1823 (guint) demux->num_packets);
1825 off = demux->data_offset + (demux->packet * demux->packet_size);
1827 if (G_UNLIKELY (!gst_asf_demux_pull_data (demux, off,
1828 demux->packet_size * demux->speed_packets, &buf, &flow))) {
1829 GST_DEBUG_OBJECT (demux, "got flow %s", gst_flow_get_name (flow));
1830 if (flow == GST_FLOW_EOS)
1832 else if (flow == GST_FLOW_FLUSHING) {
1833 GST_DEBUG_OBJECT (demux, "Not fatal");
1839 if (G_LIKELY (demux->speed_packets == 1)) {
1840 GstAsfDemuxParsePacketError err;
1841 err = gst_asf_demux_parse_packet (demux, buf);
1842 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1843 /* when we don't know when the data object ends, we should check
1844 * for a chained asf */
1845 if (demux->num_packets == 0) {
1846 if (gst_asf_demux_check_buffer_is_header (demux, buf)) {
1847 GST_INFO_OBJECT (demux, "Chained asf found");
1848 demux->base_offset = off;
1849 gst_asf_demux_reset (demux, TRUE);
1850 gst_buffer_unref (buf);
1854 /* FIXME: We should tally up fatal errors and error out only
1855 * after a few broken packets in a row? */
1857 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1858 gst_buffer_unref (buf);
1863 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1869 for (n = 0; n < demux->speed_packets; n++) {
1871 GstAsfDemuxParsePacketError err;
1874 gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL,
1875 n * demux->packet_size, demux->packet_size);
1876 err = gst_asf_demux_parse_packet (demux, sub);
1877 if (G_UNLIKELY (err != GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)) {
1878 /* when we don't know when the data object ends, we should check
1879 * for a chained asf */
1880 if (demux->num_packets == 0) {
1881 if (gst_asf_demux_check_buffer_is_header (demux, sub)) {
1882 GST_INFO_OBJECT (demux, "Chained asf found");
1883 demux->base_offset = off + n * demux->packet_size;
1884 gst_asf_demux_reset (demux, TRUE);
1885 gst_buffer_unref (sub);
1886 gst_buffer_unref (buf);
1890 /* FIXME: We should tally up fatal errors and error out only
1891 * after a few broken packets in a row? */
1893 GST_INFO_OBJECT (demux, "Ignoring recoverable parse error");
1897 gst_buffer_unref (sub);
1899 if (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE)
1900 flow = gst_asf_demux_push_complete_payloads (demux, FALSE);
1906 /* reset speed pull */
1907 demux->speed_packets = 1;
1910 gst_buffer_unref (buf);
1912 if (G_UNLIKELY (demux->num_packets > 0
1913 && demux->packet >= demux->num_packets)) {
1914 GST_LOG_OBJECT (demux, "reached EOS");
1918 if (G_UNLIKELY (flow != GST_FLOW_OK)) {
1919 GST_DEBUG_OBJECT (demux, "pushing complete payloads failed");
1923 /* check if we're at the end of the configured segment */
1924 /* FIXME: check if segment end reached etc. */
1930 /* if we haven't activated our streams yet, this might be because we have
1931 * less data queued than required for preroll; force stream activation and
1932 * send any pending payloads before sending EOS */
1933 if (!demux->activated_streams)
1934 gst_asf_demux_push_complete_payloads (demux, TRUE);
1936 /* we want to push an eos or post a segment-done in any case */
1937 if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
1940 /* for segment playback we need to post when (in stream time)
1941 * we stopped, this is either stop (when set) or the duration. */
1942 if ((stop = demux->segment.stop) == -1)
1943 stop = demux->segment.duration;
1945 GST_INFO_OBJECT (demux, "Posting segment-done, at end of segment");
1946 gst_element_post_message (GST_ELEMENT_CAST (demux),
1947 gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
1949 gst_asf_demux_send_event_unlocked (demux,
1950 gst_event_new_segment_done (GST_FORMAT_TIME, stop));
1951 } else if (flow != GST_FLOW_EOS) {
1952 /* check if we have a chained asf, in case, we don't eos yet */
1953 if (gst_asf_demux_check_chained_asf (demux)) {
1954 GST_INFO_OBJECT (demux, "Chained ASF starting");
1955 gst_asf_demux_reset (demux, TRUE);
1959 /* normal playback, send EOS to all linked pads */
1960 GST_INFO_OBJECT (demux, "Sending EOS, at end of stream");
1961 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1963 /* ... and fall through to pause */
1967 GST_DEBUG_OBJECT (demux, "pausing task, flow return: %s",
1968 gst_flow_get_name (flow));
1969 demux->segment_running = FALSE;
1970 gst_pad_pause_task (demux->sinkpad);
1972 /* For the error cases (not EOS) */
1974 if (flow == GST_FLOW_EOS)
1975 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1976 else if (flow < GST_FLOW_EOS || flow == GST_FLOW_NOT_LINKED) {
1977 /* Post an error. Hopefully something else already has, but if not... */
1978 GST_ELEMENT_ERROR (demux, STREAM, FAILED,
1979 (_("Internal data stream error.")),
1980 ("streaming stopped, reason %s", gst_flow_get_name (flow)));
1989 GST_DEBUG_OBJECT (demux, "Read failed, doh");
1990 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
1991 flow = GST_FLOW_EOS;
1995 /* See FIXMEs above */
1998 gst_buffer_unref (buf);
1999 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2000 ("Error parsing ASF packet %u", (guint) demux->packet));
2001 gst_asf_demux_send_event_unlocked (demux, gst_event_new_eos ());
2002 flow = GST_FLOW_ERROR;
2008 #define GST_ASF_DEMUX_CHECK_HEADER_YES 0
2009 #define GST_ASF_DEMUX_CHECK_HEADER_NO 1
2010 #define GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA 2
2013 gst_asf_demux_check_header (GstASFDemux * demux)
2016 guint8 *cdata = (guint8 *) gst_adapter_map (demux->adapter,
2017 ASF_OBJECT_HEADER_SIZE);
2018 if (cdata == NULL) /* need more data */
2019 return GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA;
2021 asf_demux_peek_object (demux, cdata, ASF_OBJECT_HEADER_SIZE, &obj, FALSE);
2022 if (obj.id != ASF_OBJ_HEADER) {
2023 return GST_ASF_DEMUX_CHECK_HEADER_NO;
2025 return GST_ASF_DEMUX_CHECK_HEADER_YES;
2029 static GstFlowReturn
2030 gst_asf_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
2032 GstFlowReturn ret = GST_FLOW_OK;
2035 demux = GST_ASF_DEMUX (parent);
2037 GST_LOG_OBJECT (demux,
2038 "buffer: size=%" G_GSIZE_FORMAT ", offset=%" G_GINT64_FORMAT ", time=%"
2039 GST_TIME_FORMAT, gst_buffer_get_size (buf), GST_BUFFER_OFFSET (buf),
2040 GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
2042 if (G_UNLIKELY (GST_BUFFER_IS_DISCONT (buf))) {
2043 GST_DEBUG_OBJECT (demux, "received DISCONT");
2044 gst_asf_demux_mark_discont (demux);
2047 if (G_UNLIKELY ((!GST_CLOCK_TIME_IS_VALID (demux->in_gap) &&
2048 GST_BUFFER_TIMESTAMP_IS_VALID (buf)))) {
2049 demux->in_gap = GST_BUFFER_TIMESTAMP (buf) - demux->in_segment.start;
2050 GST_DEBUG_OBJECT (demux, "upstream segment start %" GST_TIME_FORMAT
2051 ", interpolation gap: %" GST_TIME_FORMAT,
2052 GST_TIME_ARGS (demux->in_segment.start), GST_TIME_ARGS (demux->in_gap));
2055 gst_adapter_push (demux->adapter, buf);
2057 switch (demux->state) {
2058 case GST_ASF_DEMUX_STATE_INDEX:{
2059 gint result = gst_asf_demux_check_header (demux);
2060 if (result == GST_ASF_DEMUX_CHECK_HEADER_NEED_DATA) /* need more data */
2063 if (result == GST_ASF_DEMUX_CHECK_HEADER_NO) {
2064 /* we don't care about this, probably an index */
2065 /* TODO maybe would be smarter to skip all the indices
2066 * until we got a new header or EOS to decide */
2067 GST_LOG_OBJECT (demux, "Received index object, its EOS");
2070 GST_INFO_OBJECT (demux, "Chained asf starting");
2071 /* cleanup and get ready for a chained asf */
2072 gst_asf_demux_reset (demux, TRUE);
2076 case GST_ASF_DEMUX_STATE_HEADER:{
2077 ret = gst_asf_demux_chain_headers (demux);
2078 if (demux->state != GST_ASF_DEMUX_STATE_DATA)
2080 /* otherwise fall through */
2082 case GST_ASF_DEMUX_STATE_DATA:
2086 data_size = demux->packet_size;
2088 while (gst_adapter_available (demux->adapter) >= data_size) {
2090 GstAsfDemuxParsePacketError err;
2092 /* we don't know the length of the stream
2093 * check for a chained asf everytime */
2094 if (demux->num_packets == 0) {
2095 gint result = gst_asf_demux_check_header (demux);
2097 if (result == GST_ASF_DEMUX_CHECK_HEADER_YES) {
2098 GST_INFO_OBJECT (demux, "Chained asf starting");
2099 /* cleanup and get ready for a chained asf */
2100 gst_asf_demux_reset (demux, TRUE);
2103 } else if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2104 && demux->packet >= demux->num_packets)) {
2105 /* do not overshoot data section when streaming */
2109 buf = gst_adapter_take_buffer (demux->adapter, data_size);
2111 /* FIXME: We should tally up fatal errors and error out only
2112 * after a few broken packets in a row? */
2113 err = gst_asf_demux_parse_packet (demux, buf);
2115 gst_buffer_unref (buf);
2117 if (G_LIKELY (err == GST_ASF_DEMUX_PARSE_PACKET_ERROR_NONE))
2118 ret = gst_asf_demux_push_complete_payloads (demux, FALSE);
2120 GST_WARNING_OBJECT (demux, "Parse error");
2122 if (demux->packet >= 0)
2125 if (G_UNLIKELY (demux->num_packets != 0 && demux->packet >= 0
2126 && demux->packet >= demux->num_packets)) {
2127 demux->state = GST_ASF_DEMUX_STATE_INDEX;
2132 g_assert_not_reached ();
2136 if (ret != GST_FLOW_OK)
2137 GST_DEBUG_OBJECT (demux, "flow: %s", gst_flow_get_name (ret));
2143 GST_DEBUG_OBJECT (demux, "Handled last packet, setting EOS");
2149 static inline gboolean
2150 gst_asf_demux_skip_bytes (guint num_bytes, guint8 ** p_data, guint64 * p_size)
2152 if (*p_size < num_bytes)
2155 *p_data += num_bytes;
2156 *p_size -= num_bytes;
2160 static inline guint8
2161 gst_asf_demux_get_uint8 (guint8 ** p_data, guint64 * p_size)
2165 g_assert (*p_size >= 1);
2166 ret = GST_READ_UINT8 (*p_data);
2167 *p_data += sizeof (guint8);
2168 *p_size -= sizeof (guint8);
2172 static inline guint16
2173 gst_asf_demux_get_uint16 (guint8 ** p_data, guint64 * p_size)
2177 g_assert (*p_size >= 2);
2178 ret = GST_READ_UINT16_LE (*p_data);
2179 *p_data += sizeof (guint16);
2180 *p_size -= sizeof (guint16);
2184 static inline guint32
2185 gst_asf_demux_get_uint32 (guint8 ** p_data, guint64 * p_size)
2189 g_assert (*p_size >= 4);
2190 ret = GST_READ_UINT32_LE (*p_data);
2191 *p_data += sizeof (guint32);
2192 *p_size -= sizeof (guint32);
2196 static inline guint64
2197 gst_asf_demux_get_uint64 (guint8 ** p_data, guint64 * p_size)
2201 g_assert (*p_size >= 8);
2202 ret = GST_READ_UINT64_LE (*p_data);
2203 *p_data += sizeof (guint64);
2204 *p_size -= sizeof (guint64);
2209 gst_asf_demux_get_buffer (GstBuffer ** p_buf, guint num_bytes_to_read,
2210 guint8 ** p_data, guint64 * p_size)
2214 if (*p_size < num_bytes_to_read)
2217 *p_buf = gst_buffer_new_and_alloc (num_bytes_to_read);
2218 gst_buffer_fill (*p_buf, 0, *p_data, num_bytes_to_read);
2220 *p_data += num_bytes_to_read;
2221 *p_size -= num_bytes_to_read;
2227 gst_asf_demux_get_bytes (guint8 ** p_buf, guint num_bytes_to_read,
2228 guint8 ** p_data, guint64 * p_size)
2232 if (*p_size < num_bytes_to_read)
2235 *p_buf = g_memdup (*p_data, num_bytes_to_read);
2236 *p_data += num_bytes_to_read;
2237 *p_size -= num_bytes_to_read;
2242 gst_asf_demux_get_string (gchar ** p_str, guint16 * p_strlen,
2243 guint8 ** p_data, guint64 * p_size)
2253 s_length = gst_asf_demux_get_uint16 (p_data, p_size);
2256 *p_strlen = s_length;
2258 if (s_length == 0) {
2259 GST_WARNING ("zero-length string");
2260 *p_str = g_strdup ("");
2264 if (!gst_asf_demux_get_bytes (&s, s_length, p_data, p_size))
2267 g_assert (s != NULL);
2269 /* just because They don't exist doesn't
2270 * mean They are not out to get you ... */
2271 if (s[s_length - 1] != '\0') {
2272 s = g_realloc (s, s_length + 1);
2276 *p_str = (gchar *) s;
2282 gst_asf_demux_get_guid (ASFGuid * guid, guint8 ** p_data, guint64 * p_size)
2284 g_assert (*p_size >= 4 * sizeof (guint32));
2286 guid->v1 = gst_asf_demux_get_uint32 (p_data, p_size);
2287 guid->v2 = gst_asf_demux_get_uint32 (p_data, p_size);
2288 guid->v3 = gst_asf_demux_get_uint32 (p_data, p_size);
2289 guid->v4 = gst_asf_demux_get_uint32 (p_data, p_size);
2293 gst_asf_demux_get_stream_audio (asf_stream_audio * audio, guint8 ** p_data,
2296 if (*p_size < (2 + 2 + 4 + 4 + 2 + 2 + 2))
2299 /* WAVEFORMATEX Structure */
2300 audio->codec_tag = gst_asf_demux_get_uint16 (p_data, p_size);
2301 audio->channels = gst_asf_demux_get_uint16 (p_data, p_size);
2302 audio->sample_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2303 audio->byte_rate = gst_asf_demux_get_uint32 (p_data, p_size);
2304 audio->block_align = gst_asf_demux_get_uint16 (p_data, p_size);
2305 audio->word_size = gst_asf_demux_get_uint16 (p_data, p_size);
2306 /* Codec specific data size */
2307 audio->size = gst_asf_demux_get_uint16 (p_data, p_size);
2312 gst_asf_demux_get_stream_video (asf_stream_video * video, guint8 ** p_data,
2315 if (*p_size < (4 + 4 + 1 + 2))
2318 video->width = gst_asf_demux_get_uint32 (p_data, p_size);
2319 video->height = gst_asf_demux_get_uint32 (p_data, p_size);
2320 video->unknown = gst_asf_demux_get_uint8 (p_data, p_size);
2321 video->size = gst_asf_demux_get_uint16 (p_data, p_size);
2326 gst_asf_demux_get_stream_video_format (asf_stream_video_format * fmt,
2327 guint8 ** p_data, guint64 * p_size)
2329 if (*p_size < (4 + 4 + 4 + 2 + 2 + 4 + 4 + 4 + 4 + 4 + 4))
2332 fmt->size = gst_asf_demux_get_uint32 (p_data, p_size);
2333 fmt->width = gst_asf_demux_get_uint32 (p_data, p_size);
2334 fmt->height = gst_asf_demux_get_uint32 (p_data, p_size);
2335 fmt->planes = gst_asf_demux_get_uint16 (p_data, p_size);
2336 fmt->depth = gst_asf_demux_get_uint16 (p_data, p_size);
2337 fmt->tag = gst_asf_demux_get_uint32 (p_data, p_size);
2338 fmt->image_size = gst_asf_demux_get_uint32 (p_data, p_size);
2339 fmt->xpels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2340 fmt->ypels_meter = gst_asf_demux_get_uint32 (p_data, p_size);
2341 fmt->num_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2342 fmt->imp_colors = gst_asf_demux_get_uint32 (p_data, p_size);
2347 gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id)
2351 for (i = 0; i < demux->num_streams; i++) {
2352 if (demux->stream[i].id == id)
2353 return &demux->stream[i];
2356 if (gst_asf_demux_is_unknown_stream (demux, id))
2357 GST_WARNING ("Segment found for undefined stream: (%d)", id);
2362 gst_asf_demux_setup_pad (GstASFDemux * demux, GstPad * src_pad,
2363 GstCaps * caps, guint16 id, gboolean is_video, GstBuffer * streamheader,
2368 gst_pad_use_fixed_caps (src_pad);
2369 gst_pad_set_caps (src_pad, caps);
2371 gst_pad_set_event_function (src_pad,
2372 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_event));
2373 gst_pad_set_query_function (src_pad,
2374 GST_DEBUG_FUNCPTR (gst_asf_demux_handle_src_query));
2376 stream = &demux->stream[demux->num_streams];
2377 stream->caps = caps;
2378 stream->pad = src_pad;
2380 stream->fps_known = !is_video; /* bit hacky for audio */
2381 stream->is_video = is_video;
2382 stream->pending_tags = tags;
2383 stream->discont = TRUE;
2384 stream->first_buffer = TRUE;
2385 stream->streamheader = streamheader;
2386 if (stream->streamheader) {
2387 stream->streamheader = gst_buffer_make_writable (streamheader);
2388 GST_BUFFER_FLAG_SET (stream->streamheader, GST_BUFFER_FLAG_HEADER);
2393 st = gst_caps_get_structure (caps, 0);
2394 if (gst_structure_get_fraction (st, "pixel-aspect-ratio", &par_x, &par_y) &&
2395 par_x > 0 && par_y > 0) {
2396 GST_DEBUG ("PAR %d/%d", par_x, par_y);
2397 stream->par_x = par_x;
2398 stream->par_y = par_y;
2402 stream->payloads = g_array_new (FALSE, FALSE, sizeof (AsfPayload));
2404 GST_INFO ("Created pad %s for stream %u with caps %" GST_PTR_FORMAT,
2405 GST_PAD_NAME (src_pad), demux->num_streams, caps);
2407 ++demux->num_streams;
2409 stream->active = FALSE;
2415 gst_asf_demux_add_stream_headers_to_caps (GstASFDemux * demux,
2416 GstBuffer * buffer, GstStructure * structure)
2418 GValue arr_val = G_VALUE_INIT;
2419 GValue buf_val = G_VALUE_INIT;
2421 g_value_init (&arr_val, GST_TYPE_ARRAY);
2422 g_value_init (&buf_val, GST_TYPE_BUFFER);
2424 gst_value_set_buffer (&buf_val, buffer);
2425 gst_value_array_append_and_take_value (&arr_val, &buf_val);
2427 gst_structure_take_value (structure, "streamheader", &arr_val);
2431 gst_asf_demux_add_audio_stream (GstASFDemux * demux,
2432 asf_stream_audio * audio, guint16 id, guint8 ** p_data, guint64 * p_size)
2434 GstTagList *tags = NULL;
2435 GstBuffer *extradata = NULL;
2438 guint16 size_left = 0;
2439 gchar *codec_name = NULL;
2442 size_left = audio->size;
2444 /* Create the audio pad */
2445 name = g_strdup_printf ("audio_%u", demux->num_audio_streams);
2447 src_pad = gst_pad_new_from_static_template (&audio_src_template, name);
2450 /* Swallow up any left over data and set up the
2451 * standard properties from the header info */
2453 GST_INFO_OBJECT (demux, "Audio header contains %d bytes of "
2454 "codec specific data", size_left);
2456 g_assert (size_left <= *p_size);
2457 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2460 /* asf_stream_audio is the same as gst_riff_strf_auds, but with an
2461 * additional two bytes indicating extradata. */
2462 /* FIXME: Handle the channel reorder map here */
2463 caps = gst_riff_create_audio_caps (audio->codec_tag, NULL,
2464 (gst_riff_strf_auds *) audio, extradata, NULL, &codec_name, NULL);
2467 caps = gst_caps_new_simple ("audio/x-asf-unknown", "codec_id",
2468 G_TYPE_INT, (gint) audio->codec_tag, NULL);
2471 /* Informing about that audio format we just added */
2473 tags = gst_tag_list_new (GST_TAG_AUDIO_CODEC, codec_name, NULL);
2474 g_free (codec_name);
2478 gst_buffer_unref (extradata);
2480 GST_INFO ("Adding audio stream #%u, id %u codec %u (0x%04x), tags=%"
2481 GST_PTR_FORMAT, demux->num_audio_streams, id, audio->codec_tag,
2482 audio->codec_tag, tags);
2484 ++demux->num_audio_streams;
2486 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, FALSE, NULL, tags);
2490 gst_asf_demux_add_video_stream (GstASFDemux * demux,
2491 asf_stream_video_format * video, guint16 id,
2492 guint8 ** p_data, guint64 * p_size)
2494 GstTagList *tags = NULL;
2495 GstStructure *caps_s;
2496 GstBuffer *extradata = NULL;
2501 gchar *codec_name = NULL;
2502 gint size_left = video->size - 40;
2503 GstBuffer *streamheader = NULL;
2505 /* Create the video pad */
2506 name = g_strdup_printf ("video_%u", demux->num_video_streams);
2507 src_pad = gst_pad_new_from_static_template (&video_src_template, name);
2510 /* Now try some gstreamer formatted MIME types (from gst_avi_demux_strf_vids) */
2512 GST_LOG ("Video header has %d bytes of codec specific data", size_left);
2513 g_assert (size_left <= *p_size);
2514 gst_asf_demux_get_buffer (&extradata, size_left, p_data, p_size);
2517 GST_DEBUG ("video codec %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2519 /* yes, asf_stream_video_format and gst_riff_strf_vids are the same */
2520 caps = gst_riff_create_video_caps (video->tag, NULL,
2521 (gst_riff_strf_vids *) video, extradata, NULL, &codec_name);
2524 caps = gst_caps_new_simple ("video/x-asf-unknown", "fourcc",
2525 G_TYPE_UINT, video->tag, NULL);
2530 s = gst_asf_demux_get_metadata_for_stream (demux, id);
2531 if (gst_structure_get_int (s, "AspectRatioX", &ax) &&
2532 gst_structure_get_int (s, "AspectRatioY", &ay) && (ax > 0 && ay > 0)) {
2533 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2538 /* retry with the global metadata */
2539 GST_DEBUG ("Retrying with global metadata %" GST_PTR_FORMAT,
2540 demux->global_metadata);
2541 s = demux->global_metadata;
2542 if (gst_structure_get_uint (s, "AspectRatioX", &ax) &&
2543 gst_structure_get_uint (s, "AspectRatioY", &ay)) {
2544 GST_DEBUG ("ax:%d, ay:%d", ax, ay);
2545 if (ax > 0 && ay > 0)
2546 gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
2550 s = gst_caps_get_structure (caps, 0);
2551 gst_structure_remove_field (s, "framerate");
2554 caps_s = gst_caps_get_structure (caps, 0);
2556 /* add format field with fourcc to WMV/VC1 caps to differentiate variants */
2557 if (gst_structure_has_name (caps_s, "video/x-wmv")) {
2558 str = g_strdup_printf ("%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (video->tag));
2559 gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
2562 /* check if h264 has codec_data (avc) or streamheaders (bytestream) */
2563 } else if (gst_structure_has_name (caps_s, "video/x-h264")) {
2564 const GValue *value = gst_structure_get_value (caps_s, "codec_data");
2565 GstBuffer *buf = gst_value_get_buffer (value);
2568 if (gst_buffer_map (buf, &mapinfo, GST_MAP_READ)) {
2569 if (mapinfo.size >= 4 && GST_READ_UINT32_BE (mapinfo.data) == 1) {
2570 /* this looks like a bytestream start */
2571 streamheader = gst_buffer_ref (buf);
2572 gst_asf_demux_add_stream_headers_to_caps (demux, buf, caps_s);
2573 gst_structure_remove_field (caps_s, "codec_data");
2576 gst_buffer_unmap (buf, &mapinfo);
2580 /* For a 3D video, set multiview information into the caps based on
2581 * what was detected during object parsing */
2582 if (demux->asf_3D_mode != GST_ASF_3D_NONE) {
2583 GstVideoMultiviewMode mv_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
2584 GstVideoMultiviewFlags mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
2585 const gchar *mview_mode_str;
2587 switch (demux->asf_3D_mode) {
2588 case GST_ASF_3D_SIDE_BY_SIDE_HALF_LR:
2589 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2591 case GST_ASF_3D_SIDE_BY_SIDE_HALF_RL:
2592 mv_mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
2593 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2595 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR:
2596 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2598 case GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL:
2599 mv_mode = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
2600 mv_flags = GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
2602 case GST_ASF_3D_DUAL_STREAM:{
2603 gboolean is_right_view = FALSE;
2604 /* if Advanced_Mutual_Exclusion object exists, use it
2605 * to figure out which is the left view (lower ID) */
2606 if (demux->mut_ex_streams != NULL) {
2610 length = g_slist_length (demux->mut_ex_streams);
2612 for (i = 0; i < length; i++) {
2615 v_s_id = g_slist_nth_data (demux->mut_ex_streams, i);
2617 GST_DEBUG_OBJECT (demux,
2618 "has Mutual_Exclusion object. stream id in object is %d",
2619 GPOINTER_TO_INT (v_s_id));
2621 if (id > GPOINTER_TO_INT (v_s_id))
2622 is_right_view = TRUE;
2625 /* if the Advaced_Mutual_Exclusion object doesn't exist, assume the
2626 * first video stream encountered has the lower ID */
2627 if (demux->num_video_streams > 0) {
2628 /* This is not the first video stream, assuming right eye view */
2629 is_right_view = TRUE;
2633 mv_mode = GST_VIDEO_MULTIVIEW_MODE_RIGHT;
2635 mv_mode = GST_VIDEO_MULTIVIEW_MODE_LEFT;
2642 GST_INFO_OBJECT (demux,
2643 "stream_id %d, has multiview-mode %d flags 0x%x", id, mv_mode,
2646 mview_mode_str = gst_video_multiview_mode_to_caps_string (mv_mode);
2647 if (mview_mode_str != NULL) {
2648 gst_caps_set_simple (caps,
2649 "multiview-mode", G_TYPE_STRING, mview_mode_str,
2650 "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET, mv_flags,
2651 GST_FLAG_SET_MASK_EXACT, NULL);
2656 tags = gst_tag_list_new (GST_TAG_VIDEO_CODEC, codec_name, NULL);
2657 g_free (codec_name);
2661 gst_buffer_unref (extradata);
2663 GST_INFO ("Adding video stream #%u, id %u, codec %"
2664 GST_FOURCC_FORMAT " (0x%08x)", demux->num_video_streams, id,
2665 GST_FOURCC_ARGS (video->tag), video->tag);
2667 ++demux->num_video_streams;
2669 return gst_asf_demux_setup_pad (demux, src_pad, caps, id, TRUE,
2670 streamheader, tags);
2674 gst_asf_demux_activate_stream (GstASFDemux * demux, AsfStream * stream)
2676 if (!stream->active) {
2680 GST_INFO_OBJECT (demux, "Activating stream %2u, pad %s, caps %"
2681 GST_PTR_FORMAT, stream->id, GST_PAD_NAME (stream->pad), stream->caps);
2682 gst_pad_set_active (stream->pad, TRUE);
2685 gst_pad_create_stream_id_printf (stream->pad, GST_ELEMENT_CAST (demux),
2686 "%03u", stream->id);
2689 gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
2691 if (gst_event_parse_group_id (event, &demux->group_id))
2692 demux->have_group_id = TRUE;
2694 demux->have_group_id = FALSE;
2695 gst_event_unref (event);
2696 } else if (!demux->have_group_id) {
2697 demux->have_group_id = TRUE;
2698 demux->group_id = gst_util_group_id_next ();
2701 event = gst_event_new_stream_start (stream_id);
2702 if (demux->have_group_id)
2703 gst_event_set_group_id (event, demux->group_id);
2705 gst_pad_push_event (stream->pad, event);
2707 gst_pad_set_caps (stream->pad, stream->caps);
2709 gst_element_add_pad (GST_ELEMENT_CAST (demux), stream->pad);
2710 gst_flow_combiner_add_pad (demux->flowcombiner, stream->pad);
2711 stream->active = TRUE;
2716 gst_asf_demux_parse_stream_object (GstASFDemux * demux, guint8 * data,
2719 AsfCorrectionType correction_type;
2720 AsfStreamType stream_type;
2721 GstClockTime time_offset;
2722 gboolean is_encrypted G_GNUC_UNUSED;
2726 guint stream_specific_size;
2727 guint type_specific_size G_GNUC_UNUSED;
2728 guint unknown G_GNUC_UNUSED;
2729 gboolean inspect_payload = FALSE;
2730 AsfStream *stream = NULL;
2732 /* Get the rest of the header's header */
2733 if (size < (16 + 16 + 8 + 4 + 4 + 2 + 4))
2734 goto not_enough_data;
2736 gst_asf_demux_get_guid (&guid, &data, &size);
2737 stream_type = gst_asf_demux_identify_guid (asf_stream_guids, &guid);
2739 gst_asf_demux_get_guid (&guid, &data, &size);
2740 correction_type = gst_asf_demux_identify_guid (asf_correction_guids, &guid);
2742 time_offset = gst_asf_demux_get_uint64 (&data, &size) * 100;
2744 type_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2745 stream_specific_size = gst_asf_demux_get_uint32 (&data, &size);
2747 flags = gst_asf_demux_get_uint16 (&data, &size);
2748 stream_id = flags & 0x7f;
2749 is_encrypted = ! !((flags & 0x8000) << 15);
2750 unknown = gst_asf_demux_get_uint32 (&data, &size);
2752 GST_DEBUG_OBJECT (demux, "Found stream %u, time_offset=%" GST_TIME_FORMAT,
2753 stream_id, GST_TIME_ARGS (time_offset));
2755 /* dvr-ms has audio stream declared in stream specific data */
2756 if (stream_type == ASF_STREAM_EXT_EMBED_HEADER) {
2757 AsfExtStreamType ext_stream_type;
2758 gst_asf_demux_get_guid (&guid, &data, &size);
2759 ext_stream_type = gst_asf_demux_identify_guid (asf_ext_stream_guids, &guid);
2761 if (ext_stream_type == ASF_EXT_STREAM_AUDIO) {
2762 inspect_payload = TRUE;
2764 gst_asf_demux_get_guid (&guid, &data, &size);
2765 gst_asf_demux_get_uint32 (&data, &size);
2766 gst_asf_demux_get_uint32 (&data, &size);
2767 gst_asf_demux_get_uint32 (&data, &size);
2768 gst_asf_demux_get_guid (&guid, &data, &size);
2769 gst_asf_demux_get_uint32 (&data, &size);
2770 stream_type = ASF_STREAM_AUDIO;
2774 switch (stream_type) {
2775 case ASF_STREAM_AUDIO:{
2776 asf_stream_audio audio_object;
2778 if (!gst_asf_demux_get_stream_audio (&audio_object, &data, &size))
2779 goto not_enough_data;
2781 GST_INFO ("Object is an audio stream with %u bytes of additional data",
2784 stream = gst_asf_demux_add_audio_stream (demux, &audio_object, stream_id,
2787 switch (correction_type) {
2788 case ASF_CORRECTION_ON:{
2789 guint span, packet_size, chunk_size, data_size, silence_data;
2791 GST_INFO ("Using error correction");
2793 if (size < (1 + 2 + 2 + 2 + 1))
2794 goto not_enough_data;
2796 span = gst_asf_demux_get_uint8 (&data, &size);
2797 packet_size = gst_asf_demux_get_uint16 (&data, &size);
2798 chunk_size = gst_asf_demux_get_uint16 (&data, &size);
2799 data_size = gst_asf_demux_get_uint16 (&data, &size);
2800 silence_data = gst_asf_demux_get_uint8 (&data, &size);
2802 stream->span = span;
2804 GST_DEBUG_OBJECT (demux, "Descrambling ps:%u cs:%u ds:%u s:%u sd:%u",
2805 packet_size, chunk_size, data_size, span, silence_data);
2807 if (stream->span > 1) {
2808 if (chunk_size == 0 || ((packet_size / chunk_size) <= 1)) {
2809 /* Disable descrambling */
2812 /* FIXME: this else branch was added for
2813 * weird_al_yankovic - the saga begins.asf */
2814 stream->ds_packet_size = packet_size;
2815 stream->ds_chunk_size = chunk_size;
2818 /* Descambling is enabled */
2819 stream->ds_packet_size = packet_size;
2820 stream->ds_chunk_size = chunk_size;
2823 /* Now skip the rest of the silence data */
2825 gst_bytestream_flush (demux->bs, data_size - 1);
2827 /* FIXME: CHECKME. And why -1? */
2828 if (data_size > 1) {
2829 if (!gst_asf_demux_skip_bytes (data_size - 1, &data, &size)) {
2830 goto not_enough_data;
2836 case ASF_CORRECTION_OFF:{
2837 GST_INFO ("Error correction off");
2838 if (!gst_asf_demux_skip_bytes (stream_specific_size, &data, &size))
2839 goto not_enough_data;
2843 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
2844 ("Audio stream using unknown error correction"));
2851 case ASF_STREAM_VIDEO:{
2852 asf_stream_video_format video_format_object;
2853 asf_stream_video video_object;
2856 if (!gst_asf_demux_get_stream_video (&video_object, &data, &size))
2857 goto not_enough_data;
2859 vsize = video_object.size - 40; /* Byte order gets offset by single byte */
2861 GST_INFO ("object is a video stream with %u bytes of "
2862 "additional data", vsize);
2864 if (!gst_asf_demux_get_stream_video_format (&video_format_object,
2866 goto not_enough_data;
2869 stream = gst_asf_demux_add_video_stream (demux, &video_format_object,
2870 stream_id, &data, &size);
2876 GST_WARNING_OBJECT (demux, "Unknown stream type for stream %u",
2878 demux->other_streams =
2879 g_slist_append (demux->other_streams, GINT_TO_POINTER (stream_id));
2884 stream->inspect_payload = inspect_payload;
2889 GST_WARNING_OBJECT (demux, "Unexpected end of data parsing stream object");
2890 /* we'll error out later if we found no streams */
2895 static const gchar *
2896 gst_asf_demux_get_gst_tag_from_tag_name (const gchar * name_utf8)
2900 const gchar *asf_name;
2901 const gchar *gst_name;
2904 "WM/Genre", GST_TAG_GENRE}, {
2905 "WM/AlbumTitle", GST_TAG_ALBUM}, {
2906 "WM/AlbumArtist", GST_TAG_ARTIST}, {
2907 "WM/Picture", GST_TAG_IMAGE}, {
2908 "WM/Track", GST_TAG_TRACK_NUMBER}, {
2909 "WM/TrackNumber", GST_TAG_TRACK_NUMBER}, {
2910 "WM/Year", GST_TAG_DATE_TIME}
2911 /* { "WM/Composer", GST_TAG_COMPOSER } */
2916 if (name_utf8 == NULL) {
2917 GST_WARNING ("Failed to convert name to UTF8, skipping");
2921 out = strlen (name_utf8);
2923 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
2924 if (strncmp (tags[i].asf_name, name_utf8, out) == 0) {
2925 GST_LOG ("map tagname '%s' -> '%s'", name_utf8, tags[i].gst_name);
2926 return tags[i].gst_name;
2933 /* gst_asf_demux_add_global_tags() takes ownership of taglist! */
2935 gst_asf_demux_add_global_tags (GstASFDemux * demux, GstTagList * taglist)
2939 GST_DEBUG_OBJECT (demux, "adding global tags: %" GST_PTR_FORMAT, taglist);
2941 if (taglist == NULL)
2944 if (gst_tag_list_is_empty (taglist)) {
2945 gst_tag_list_unref (taglist);
2949 t = gst_tag_list_merge (demux->taglist, taglist, GST_TAG_MERGE_APPEND);
2950 gst_tag_list_set_scope (t, GST_TAG_SCOPE_GLOBAL);
2952 gst_tag_list_unref (demux->taglist);
2953 gst_tag_list_unref (taglist);
2955 GST_LOG_OBJECT (demux, "global tags now: %" GST_PTR_FORMAT, demux->taglist);
2958 #define ASF_DEMUX_DATA_TYPE_UTF16LE_STRING 0
2959 #define ASF_DEMUX_DATA_TYPE_BYTE_ARRAY 1
2960 #define ASF_DEMUX_DATA_TYPE_BOOL 2
2961 #define ASF_DEMUX_DATA_TYPE_DWORD 3
2964 asf_demux_parse_picture_tag (GstTagList * tags, const guint8 * tag_data,
2968 const guint8 *img_data = NULL;
2969 guint32 img_data_len = 0;
2970 guint8 pic_type = 0;
2972 gst_byte_reader_init (&r, tag_data, tag_data_len);
2974 /* skip mime type string (we don't trust it and do our own typefinding),
2975 * and also skip the description string, since we don't use it */
2976 if (!gst_byte_reader_get_uint8 (&r, &pic_type) ||
2977 !gst_byte_reader_get_uint32_le (&r, &img_data_len) ||
2978 !gst_byte_reader_skip_string_utf16 (&r) ||
2979 !gst_byte_reader_skip_string_utf16 (&r) ||
2980 !gst_byte_reader_get_data (&r, img_data_len, &img_data)) {
2981 goto not_enough_data;
2985 if (!gst_tag_list_add_id3_image (tags, img_data, img_data_len, pic_type))
2986 GST_DEBUG ("failed to add image extracted from WM/Picture tag to taglist");
2992 GST_DEBUG ("Failed to read WM/Picture tag: not enough data");
2993 GST_MEMDUMP ("WM/Picture data", tag_data, tag_data_len);
2998 /* Extended Content Description Object */
2999 static GstFlowReturn
3000 gst_asf_demux_process_ext_content_desc (GstASFDemux * demux, guint8 * data,
3003 /* Other known (and unused) 'text/unicode' metadata available :
3006 * WM/MediaPrimaryClassID = {D1607DBC-E323-4BE2-86A1-48A42A28441E}
3007 * WMFSDKVersion = 9.00.00.2980
3008 * WMFSDKNeeded = 0.0.0.0000
3009 * WM/UniqueFileIdentifier = AMGa_id=R 15334;AMGp_id=P 5149;AMGt_id=T 2324984
3010 * WM/Publisher = 4AD
3012 * WM/ProviderRating = 8
3013 * WM/ProviderStyle = Rock (similar to WM/Genre)
3014 * WM/GenreID (similar to WM/Genre)
3015 * WM/TrackNumber (same as WM/Track but as a string)
3017 * Other known (and unused) 'non-text' metadata available :
3023 * We might want to read WM/TrackNumber and use atoi() if we don't have
3027 GstTagList *taglist;
3028 guint16 blockcount, i;
3029 gboolean content3D = FALSE;
3033 const gchar *interleave_name;
3034 GstASF3DMode interleaving_type;
3035 } stereoscopic_layout_map[] = {
3037 "SideBySideRF", GST_ASF_3D_SIDE_BY_SIDE_HALF_RL}, {
3038 "SideBySideLF", GST_ASF_3D_SIDE_BY_SIDE_HALF_LR}, {
3039 "OverUnderRT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL}, {
3040 "OverUnderLT", GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR}, {
3041 "DualStream", GST_ASF_3D_DUAL_STREAM}
3043 GST_INFO_OBJECT (demux, "object is an extended content description");
3045 taglist = gst_tag_list_new_empty ();
3047 /* Content Descriptor Count */
3049 goto not_enough_data;
3051 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3053 for (i = 1; i <= blockcount; ++i) {
3054 const gchar *gst_tag_name;
3058 GValue tag_value = { 0, };
3061 gchar *name_utf8 = NULL;
3065 if (!gst_asf_demux_get_string (&name, &name_len, &data, &size))
3066 goto not_enough_data;
3070 goto not_enough_data;
3072 /* Descriptor Value Data Type */
3073 datatype = gst_asf_demux_get_uint16 (&data, &size);
3075 /* Descriptor Value (not really a string, but same thing reading-wise) */
3076 if (!gst_asf_demux_get_string (&value, &value_len, &data, &size)) {
3078 goto not_enough_data;
3082 g_convert (name, name_len, "UTF-8", "UTF-16LE", &in, &out, NULL);
3084 if (name_utf8 != NULL) {
3085 GST_DEBUG ("Found tag/metadata %s", name_utf8);
3087 gst_tag_name = gst_asf_demux_get_gst_tag_from_tag_name (name_utf8);
3088 GST_DEBUG ("gst_tag_name %s", GST_STR_NULL (gst_tag_name));
3091 case ASF_DEMUX_DATA_TYPE_UTF16LE_STRING:{
3094 value_utf8 = g_convert (value, value_len, "UTF-8", "UTF-16LE",
3097 /* get rid of tags with empty value */
3098 if (value_utf8 != NULL && *value_utf8 != '\0') {
3099 GST_DEBUG ("string value %s", value_utf8);
3101 value_utf8[out] = '\0';
3103 if (gst_tag_name != NULL) {
3104 if (strcmp (gst_tag_name, GST_TAG_DATE_TIME) == 0) {
3105 guint year = atoi (value_utf8);
3108 g_value_init (&tag_value, GST_TYPE_DATE_TIME);
3109 g_value_take_boxed (&tag_value, gst_date_time_new_y (year));
3111 } else if (strcmp (gst_tag_name, GST_TAG_GENRE) == 0) {
3112 guint id3v1_genre_id;
3113 const gchar *genre_str;
3115 if (sscanf (value_utf8, "(%u)", &id3v1_genre_id) == 1 &&
3116 ((genre_str = gst_tag_id3_genre_get (id3v1_genre_id)))) {
3117 GST_DEBUG ("Genre: %s -> %s", value_utf8, genre_str);
3118 g_free (value_utf8);
3119 value_utf8 = g_strdup (genre_str);
3124 /* convert tag from string to other type if required */
3125 tag_type = gst_tag_get_type (gst_tag_name);
3126 g_value_init (&tag_value, tag_type);
3127 if (!gst_value_deserialize (&tag_value, value_utf8)) {
3128 GValue from_val = { 0, };
3130 g_value_init (&from_val, G_TYPE_STRING);
3131 g_value_set_string (&from_val, value_utf8);
3132 if (!g_value_transform (&from_val, &tag_value)) {
3133 GST_WARNING_OBJECT (demux,
3134 "Could not transform string tag to " "%s tag type %s",
3135 gst_tag_name, g_type_name (tag_type));
3136 g_value_unset (&tag_value);
3138 g_value_unset (&from_val);
3143 GST_DEBUG ("Setting metadata");
3144 g_value_init (&tag_value, G_TYPE_STRING);
3145 g_value_set_string (&tag_value, value_utf8);
3146 /* If we found a stereoscopic marker, look for StereoscopicLayout
3150 if (strncmp ("StereoscopicLayout", name_utf8,
3151 strlen (name_utf8)) == 0) {
3152 for (i = 0; i < G_N_ELEMENTS (stereoscopic_layout_map); i++) {
3153 if (g_str_equal (stereoscopic_layout_map[i].interleave_name,
3155 demux->asf_3D_mode =
3156 stereoscopic_layout_map[i].interleaving_type;
3157 GST_INFO ("find interleave type %u", demux->asf_3D_mode);
3161 GST_INFO_OBJECT (demux, "3d type is %u", demux->asf_3D_mode);
3163 demux->asf_3D_mode = GST_ASF_3D_NONE;
3164 GST_INFO_OBJECT (demux, "None 3d type");
3167 } else if (value_utf8 == NULL) {
3168 GST_WARNING ("Failed to convert string value to UTF8, skipping");
3170 GST_DEBUG ("Skipping empty string value for %s",
3171 GST_STR_NULL (gst_tag_name));
3173 g_free (value_utf8);
3176 case ASF_DEMUX_DATA_TYPE_BYTE_ARRAY:{
3178 if (!g_str_equal (gst_tag_name, GST_TAG_IMAGE)) {
3179 GST_FIXME ("Unhandled byte array tag %s",
3180 GST_STR_NULL (gst_tag_name));
3183 asf_demux_parse_picture_tag (taglist, (guint8 *) value,
3189 case ASF_DEMUX_DATA_TYPE_DWORD:{
3190 guint uint_val = GST_READ_UINT32_LE (value);
3192 /* this is the track number */
3193 g_value_init (&tag_value, G_TYPE_UINT);
3195 /* WM/Track counts from 0 */
3196 if (!strcmp (name_utf8, "WM/Track"))
3199 g_value_set_uint (&tag_value, uint_val);
3203 case ASF_DEMUX_DATA_TYPE_BOOL:{
3204 gboolean bool_val = GST_READ_UINT32_LE (value);
3206 if (strncmp ("Stereoscopic", name_utf8, strlen (name_utf8)) == 0) {
3208 GST_INFO_OBJECT (demux, "This is 3D contents");
3211 GST_INFO_OBJECT (demux, "This is not 3D contenst");
3219 GST_DEBUG ("Skipping tag %s of type %d", gst_tag_name, datatype);
3224 if (G_IS_VALUE (&tag_value)) {
3226 GstTagMergeMode merge_mode = GST_TAG_MERGE_APPEND;
3228 /* WM/TrackNumber is more reliable than WM/Track, since the latter
3229 * is supposed to have a 0 base but is often wrongly written to start
3230 * from 1 as well, so prefer WM/TrackNumber when we have it: either
3231 * replace the value added earlier from WM/Track or put it first in
3232 * the list, so that it will get picked up by _get_uint() */
3233 if (strcmp (name_utf8, "WM/TrackNumber") == 0)
3234 merge_mode = GST_TAG_MERGE_REPLACE;
3236 gst_tag_list_add_values (taglist, merge_mode, gst_tag_name,
3239 GST_DEBUG ("Setting global metadata %s", name_utf8);
3240 gst_structure_set_value (demux->global_metadata, name_utf8,
3244 g_value_unset (&tag_value);
3253 gst_asf_demux_add_global_tags (demux, taglist);
3260 GST_WARNING ("Unexpected end of data parsing ext content desc object");
3261 gst_tag_list_unref (taglist);
3262 return GST_FLOW_OK; /* not really fatal */
3266 static GstStructure *
3267 gst_asf_demux_get_metadata_for_stream (GstASFDemux * demux, guint stream_num)
3272 g_snprintf (sname, sizeof (sname), "stream-%u", stream_num);
3274 for (i = 0; i < gst_caps_get_size (demux->metadata); ++i) {
3277 s = gst_caps_get_structure (demux->metadata, i);
3278 if (gst_structure_has_name (s, sname))
3282 gst_caps_append_structure (demux->metadata, gst_structure_new_empty (sname));
3284 /* try lookup again; demux->metadata took ownership of the structure, so we
3285 * can't really make any assumptions about what happened to it, so we can't
3286 * just return it directly after appending it */
3287 return gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3290 static GstFlowReturn
3291 gst_asf_demux_process_metadata (GstASFDemux * demux, guint8 * data,
3294 guint16 blockcount, i;
3296 GST_INFO_OBJECT (demux, "object is a metadata object");
3298 /* Content Descriptor Count */
3300 goto not_enough_data;
3302 blockcount = gst_asf_demux_get_uint16 (&data, &size);
3304 for (i = 0; i < blockcount; ++i) {
3306 guint16 stream_num, name_len, data_type, lang_idx G_GNUC_UNUSED;
3307 guint32 data_len, ival;
3310 if (size < (2 + 2 + 2 + 2 + 4))
3311 goto not_enough_data;
3313 lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3314 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3315 name_len = gst_asf_demux_get_uint16 (&data, &size);
3316 data_type = gst_asf_demux_get_uint16 (&data, &size);
3317 data_len = gst_asf_demux_get_uint32 (&data, &size);
3319 if (size < name_len + data_len)
3320 goto not_enough_data;
3322 /* convert name to UTF-8 */
3323 name_utf8 = g_convert ((gchar *) data, name_len, "UTF-8", "UTF-16LE",
3325 gst_asf_demux_skip_bytes (name_len, &data, &size);
3327 if (name_utf8 == NULL) {
3328 GST_WARNING ("Failed to convert value name to UTF8, skipping");
3329 gst_asf_demux_skip_bytes (data_len, &data, &size);
3333 if (data_type != ASF_DEMUX_DATA_TYPE_DWORD) {
3334 gst_asf_demux_skip_bytes (data_len, &data, &size);
3342 goto not_enough_data;
3345 ival = gst_asf_demux_get_uint32 (&data, &size);
3347 /* skip anything else there may be, just in case */
3348 gst_asf_demux_skip_bytes (data_len - 4, &data, &size);
3350 s = gst_asf_demux_get_metadata_for_stream (demux, stream_num);
3351 gst_structure_set (s, name_utf8, G_TYPE_INT, ival, NULL);
3355 GST_INFO_OBJECT (demux, "metadata = %" GST_PTR_FORMAT, demux->metadata);
3361 GST_WARNING ("Unexpected end of data parsing metadata object");
3362 return GST_FLOW_OK; /* not really fatal */
3366 static GstFlowReturn
3367 gst_asf_demux_process_header (GstASFDemux * demux, guint8 * data, guint64 size)
3369 GstFlowReturn ret = GST_FLOW_OK;
3370 guint32 i, num_objects;
3371 guint8 unknown G_GNUC_UNUSED;
3373 /* Get the rest of the header's header */
3374 if (size < (4 + 1 + 1))
3375 goto not_enough_data;
3377 num_objects = gst_asf_demux_get_uint32 (&data, &size);
3378 unknown = gst_asf_demux_get_uint8 (&data, &size);
3379 unknown = gst_asf_demux_get_uint8 (&data, &size);
3381 GST_INFO_OBJECT (demux, "object is a header with %u parts", num_objects);
3383 /* Loop through the header's objects, processing those */
3384 for (i = 0; i < num_objects; ++i) {
3385 GST_INFO_OBJECT (demux, "reading header part %u", i);
3386 ret = gst_asf_demux_process_object (demux, &data, &size);
3387 if (ret != GST_FLOW_OK) {
3388 GST_WARNING ("process_object returned %s", gst_asf_get_flow_name (ret));
3397 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3398 ("short read parsing HEADER object"));
3399 return GST_FLOW_ERROR;
3403 static GstFlowReturn
3404 gst_asf_demux_process_file (GstASFDemux * demux, guint8 * data, guint64 size)
3406 guint64 creation_time G_GNUC_UNUSED;
3407 guint64 file_size G_GNUC_UNUSED;
3408 guint64 send_time G_GNUC_UNUSED;
3409 guint64 packets_count, play_time, preroll;
3410 guint32 flags, min_pktsize, max_pktsize, min_bitrate G_GNUC_UNUSED;
3412 if (size < (16 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 4 + 4))
3413 goto not_enough_data;
3415 gst_asf_demux_skip_bytes (16, &data, &size); /* skip GUID */
3416 file_size = gst_asf_demux_get_uint64 (&data, &size);
3417 creation_time = gst_asf_demux_get_uint64 (&data, &size);
3418 packets_count = gst_asf_demux_get_uint64 (&data, &size);
3419 play_time = gst_asf_demux_get_uint64 (&data, &size);
3420 send_time = gst_asf_demux_get_uint64 (&data, &size);
3421 preroll = gst_asf_demux_get_uint64 (&data, &size);
3422 flags = gst_asf_demux_get_uint32 (&data, &size);
3423 min_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3424 max_pktsize = gst_asf_demux_get_uint32 (&data, &size);
3425 min_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3427 demux->broadcast = ! !(flags & 0x01);
3428 demux->seekable = ! !(flags & 0x02);
3430 GST_DEBUG_OBJECT (demux, "min_pktsize = %u", min_pktsize);
3431 GST_DEBUG_OBJECT (demux, "flags::broadcast = %d", demux->broadcast);
3432 GST_DEBUG_OBJECT (demux, "flags::seekable = %d", demux->seekable);
3434 if (demux->broadcast) {
3435 /* these fields are invalid if the broadcast flag is set */
3440 if (min_pktsize != max_pktsize)
3441 goto non_fixed_packet_size;
3443 demux->packet_size = max_pktsize;
3445 /* FIXME: do we need send_time as well? what is it? */
3446 if ((play_time * 100) >= (preroll * GST_MSECOND))
3447 demux->play_time = (play_time * 100) - (preroll * GST_MSECOND);
3449 demux->play_time = 0;
3451 demux->preroll = preroll * GST_MSECOND;
3453 /* initial latency */
3454 demux->latency = demux->preroll;
3456 if (demux->play_time == 0)
3457 demux->seekable = FALSE;
3459 GST_DEBUG_OBJECT (demux, "play_time %" GST_TIME_FORMAT,
3460 GST_TIME_ARGS (demux->play_time));
3461 GST_DEBUG_OBJECT (demux, "preroll %" GST_TIME_FORMAT,
3462 GST_TIME_ARGS (demux->preroll));
3464 if (demux->play_time > 0) {
3465 demux->segment.duration = demux->play_time;
3468 GST_INFO ("object is a file with %" G_GUINT64_FORMAT " data packets",
3470 GST_INFO ("preroll = %" G_GUINT64_FORMAT, demux->preroll);
3475 non_fixed_packet_size:
3477 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3478 ("packet size must be fixed"));
3479 return GST_FLOW_ERROR;
3483 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3484 ("short read parsing FILE object"));
3485 return GST_FLOW_ERROR;
3489 /* Content Description Object */
3490 static GstFlowReturn
3491 gst_asf_demux_process_comment (GstASFDemux * demux, guint8 * data, guint64 size)
3495 const gchar *gst_tag;
3500 GST_TAG_TITLE, 0, NULL}, {
3501 GST_TAG_ARTIST, 0, NULL}, {
3502 GST_TAG_COPYRIGHT, 0, NULL}, {
3503 GST_TAG_DESCRIPTION, 0, NULL}, {
3504 GST_TAG_COMMENT, 0, NULL}
3506 GstTagList *taglist;
3507 GValue value = { 0 };
3511 GST_INFO_OBJECT (demux, "object is a comment");
3513 if (size < (2 + 2 + 2 + 2 + 2))
3514 goto not_enough_data;
3516 tags[0].val_length = gst_asf_demux_get_uint16 (&data, &size);
3517 tags[1].val_length = gst_asf_demux_get_uint16 (&data, &size);
3518 tags[2].val_length = gst_asf_demux_get_uint16 (&data, &size);
3519 tags[3].val_length = gst_asf_demux_get_uint16 (&data, &size);
3520 tags[4].val_length = gst_asf_demux_get_uint16 (&data, &size);
3522 GST_DEBUG_OBJECT (demux, "Comment lengths: title=%d author=%d copyright=%d "
3523 "description=%d rating=%d", tags[0].val_length, tags[1].val_length,
3524 tags[2].val_length, tags[3].val_length, tags[4].val_length);
3526 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3527 if (size < tags[i].val_length)
3528 goto not_enough_data;
3530 /* might be just '/0', '/0'... */
3531 if (tags[i].val_length > 2 && tags[i].val_length % 2 == 0) {
3532 /* convert to UTF-8 */
3533 tags[i].val_utf8 = g_convert ((gchar *) data, tags[i].val_length,
3534 "UTF-8", "UTF-16LE", &in, &out, NULL);
3536 gst_asf_demux_skip_bytes (tags[i].val_length, &data, &size);
3539 /* parse metadata into taglist */
3540 taglist = gst_tag_list_new_empty ();
3541 g_value_init (&value, G_TYPE_STRING);
3542 for (i = 0; i < G_N_ELEMENTS (tags); ++i) {
3543 if (tags[i].val_utf8 && strlen (tags[i].val_utf8) > 0 && tags[i].gst_tag) {
3544 g_value_set_string (&value, tags[i].val_utf8);
3545 gst_tag_list_add_values (taglist, GST_TAG_MERGE_APPEND,
3546 tags[i].gst_tag, &value, NULL);
3549 g_value_unset (&value);
3551 gst_asf_demux_add_global_tags (demux, taglist);
3553 for (i = 0; i < G_N_ELEMENTS (tags); ++i)
3554 g_free (tags[i].val_utf8);
3560 GST_WARNING_OBJECT (demux, "unexpectedly short of data while processing "
3561 "comment tag section %d, skipping comment object", i);
3562 for (i = 0; i < G_N_ELEMENTS (tags); i++)
3563 g_free (tags[i].val_utf8);
3564 return GST_FLOW_OK; /* not really fatal */
3568 static GstFlowReturn
3569 gst_asf_demux_process_bitrate_props_object (GstASFDemux * demux, guint8 * data,
3572 guint16 num_streams, i;
3576 goto not_enough_data;
3578 num_streams = gst_asf_demux_get_uint16 (&data, &size);
3580 GST_INFO ("object is a bitrate properties object with %u streams",
3583 if (size < (num_streams * (2 + 4)))
3584 goto not_enough_data;
3586 for (i = 0; i < num_streams; ++i) {
3590 stream_id = gst_asf_demux_get_uint16 (&data, &size);
3591 bitrate = gst_asf_demux_get_uint32 (&data, &size);
3593 if (stream_id < GST_ASF_DEMUX_NUM_STREAM_IDS) {
3594 GST_DEBUG_OBJECT (demux, "bitrate of stream %u = %u", stream_id, bitrate);
3595 stream = gst_asf_demux_get_stream (demux, stream_id);
3597 if (stream->pending_tags == NULL) {
3598 stream->pending_tags =
3599 gst_tag_list_new (GST_TAG_BITRATE, bitrate, NULL);
3602 GST_WARNING_OBJECT (demux, "Stream id %u wasn't found", stream_id);
3605 GST_WARNING ("stream id %u is too large", stream_id);
3613 GST_WARNING_OBJECT (demux, "short read parsing bitrate props object!");
3614 return GST_FLOW_OK; /* not really fatal */
3618 static GstFlowReturn
3619 gst_asf_demux_process_header_ext (GstASFDemux * demux, guint8 * data,
3622 GstFlowReturn ret = GST_FLOW_OK;
3625 /* Get the rest of the header's header */
3626 if (size < (16 + 2 + 4))
3627 goto not_enough_data;
3629 /* skip GUID and two other bytes */
3630 gst_asf_demux_skip_bytes (16 + 2, &data, &size);
3631 hdr_size = gst_asf_demux_get_uint32 (&data, &size);
3633 GST_INFO ("extended header object with a size of %u bytes", (guint) size);
3635 /* FIXME: does data_size include the rest of the header that we have read? */
3636 if (hdr_size > size)
3637 goto not_enough_data;
3639 while (hdr_size > 0) {
3640 ret = gst_asf_demux_process_object (demux, &data, &hdr_size);
3641 if (ret != GST_FLOW_OK)
3649 GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
3650 ("short read parsing extended header object"));
3651 return GST_FLOW_ERROR;
3655 static GstFlowReturn
3656 gst_asf_demux_process_language_list (GstASFDemux * demux, guint8 * data,
3662 goto not_enough_data;
3664 if (demux->languages) {
3665 GST_WARNING ("More than one LANGUAGE_LIST object in stream");
3666 g_strfreev (demux->languages);
3667 demux->languages = NULL;
3668 demux->num_languages = 0;
3671 demux->num_languages = gst_asf_demux_get_uint16 (&data, &size);
3672 GST_LOG ("%u languages:", demux->num_languages);
3674 demux->languages = g_new0 (gchar *, demux->num_languages + 1);
3675 for (i = 0; i < demux->num_languages; ++i) {
3676 guint8 len, *lang_data = NULL;
3679 goto not_enough_data;
3680 len = gst_asf_demux_get_uint8 (&data, &size);
3681 if (gst_asf_demux_get_bytes (&lang_data, len, &data, &size)) {
3684 utf8 = g_convert ((gchar *) lang_data, len, "UTF-8", "UTF-16LE", NULL,
3687 /* truncate "en-us" etc. to just "en" */
3688 if (utf8 && strlen (utf8) >= 5 && (utf8[2] == '-' || utf8[2] == '_')) {
3691 GST_DEBUG ("[%u] %s", i, GST_STR_NULL (utf8));
3692 demux->languages[i] = utf8;
3695 goto not_enough_data;
3703 GST_WARNING_OBJECT (demux, "short read parsing language list object!");
3704 g_free (demux->languages);
3705 demux->languages = NULL;
3706 return GST_FLOW_OK; /* not fatal */
3710 static GstFlowReturn
3711 gst_asf_demux_process_simple_index (GstASFDemux * demux, guint8 * data,
3714 GstClockTime interval;
3717 if (size < (16 + 8 + 4 + 4))
3718 goto not_enough_data;
3721 gst_asf_demux_skip_bytes (16, &data, &size);
3722 interval = gst_asf_demux_get_uint64 (&data, &size) * (GstClockTime) 100;
3723 gst_asf_demux_skip_bytes (4, &data, &size);
3724 count = gst_asf_demux_get_uint32 (&data, &size);
3726 demux->sidx_interval = interval;
3727 demux->sidx_num_entries = count;
3728 g_free (demux->sidx_entries);
3729 demux->sidx_entries = g_new0 (AsfSimpleIndexEntry, count);
3731 for (i = 0; i < count; ++i) {
3732 if (G_UNLIKELY (size < 6)) {
3733 /* adjust for broken files, to avoid having entries at the end
3734 * of the parsed index that point to time=0. Resulting in seeking to
3735 * the end of the file leading back to the beginning */
3736 demux->sidx_num_entries -= (count - i);
3739 demux->sidx_entries[i].packet = gst_asf_demux_get_uint32 (&data, &size);
3740 demux->sidx_entries[i].count = gst_asf_demux_get_uint16 (&data, &size);
3741 GST_LOG_OBJECT (demux, "%" GST_TIME_FORMAT " = packet %4u count : %2d",
3742 GST_TIME_ARGS (i * interval), demux->sidx_entries[i].packet,
3743 demux->sidx_entries[i].count);
3746 GST_DEBUG_OBJECT (demux, "simple index object with 0 entries");
3753 GST_WARNING_OBJECT (demux, "short read parsing simple index object!");
3754 return GST_FLOW_OK; /* not fatal */
3758 static GstFlowReturn
3759 gst_asf_demux_process_advanced_mutual_exclusion (GstASFDemux * demux,
3760 guint8 * data, guint64 size)
3765 if (size < 16 + 2 + (2 * 2))
3766 goto not_enough_data;
3768 gst_asf_demux_get_guid (&guid, &data, &size);
3769 num = gst_asf_demux_get_uint16 (&data, &size);
3772 GST_WARNING_OBJECT (demux, "nonsensical mutually exclusive streams count");
3776 if (size < (num * sizeof (guint16)))
3777 goto not_enough_data;
3779 /* read mutually exclusive stream numbers */
3780 for (i = 0; i < num; ++i) {
3782 mes = gst_asf_demux_get_uint16 (&data, &size) & 0x7f;
3783 GST_LOG_OBJECT (demux, "mutually exclusive: stream %d", mes);
3785 demux->mut_ex_streams =
3786 g_slist_append (demux->mut_ex_streams, GINT_TO_POINTER (mes));
3795 GST_WARNING_OBJECT (demux, "short read parsing advanced mutual exclusion");
3796 return GST_FLOW_OK; /* not absolutely fatal */
3801 gst_asf_demux_is_unknown_stream (GstASFDemux * demux, guint stream_num)
3803 return g_slist_find (demux->other_streams,
3804 GINT_TO_POINTER (stream_num)) == NULL;
3807 static GstFlowReturn
3808 gst_asf_demux_process_ext_stream_props (GstASFDemux * demux, guint8 * data,
3811 AsfStreamExtProps esp;
3812 AsfStream *stream = NULL;
3813 AsfObject stream_obj;
3814 guint16 stream_name_count;
3815 guint16 num_payload_ext;
3817 guint8 *stream_obj_data = NULL;
3820 guint i, stream_num;
3823 obj_size = (guint) size;
3826 goto not_enough_data;
3829 esp.start_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3830 esp.end_time = gst_asf_demux_get_uint64 (&data, &size) * GST_MSECOND;
3831 esp.data_bitrate = gst_asf_demux_get_uint32 (&data, &size);
3832 esp.buffer_size = gst_asf_demux_get_uint32 (&data, &size);
3833 esp.intial_buf_fullness = gst_asf_demux_get_uint32 (&data, &size);
3834 esp.data_bitrate2 = gst_asf_demux_get_uint32 (&data, &size);
3835 esp.buffer_size2 = gst_asf_demux_get_uint32 (&data, &size);
3836 esp.intial_buf_fullness2 = gst_asf_demux_get_uint32 (&data, &size);
3837 esp.max_obj_size = gst_asf_demux_get_uint32 (&data, &size);
3838 esp.flags = gst_asf_demux_get_uint32 (&data, &size);
3839 stream_num = gst_asf_demux_get_uint16 (&data, &size);
3840 esp.lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3841 esp.avg_time_per_frame = gst_asf_demux_get_uint64 (&data, &size);
3842 stream_name_count = gst_asf_demux_get_uint16 (&data, &size);
3843 num_payload_ext = gst_asf_demux_get_uint16 (&data, &size);
3845 GST_INFO ("start_time = %" GST_TIME_FORMAT,
3846 GST_TIME_ARGS (esp.start_time));
3847 GST_INFO ("end_time = %" GST_TIME_FORMAT,
3848 GST_TIME_ARGS (esp.end_time));
3849 GST_INFO ("flags = %08x", esp.flags);
3850 GST_INFO ("average time per frame = %" GST_TIME_FORMAT,
3851 GST_TIME_ARGS (esp.avg_time_per_frame * 100));
3852 GST_INFO ("stream number = %u", stream_num);
3853 GST_INFO ("stream language ID idx = %u (%s)", esp.lang_idx,
3854 (esp.lang_idx < demux->num_languages) ?
3855 GST_STR_NULL (demux->languages[esp.lang_idx]) : "??");
3856 GST_INFO ("stream name count = %u", stream_name_count);
3858 /* read stream names */
3859 for (i = 0; i < stream_name_count; ++i) {
3860 guint16 stream_lang_idx G_GNUC_UNUSED;
3861 gchar *stream_name = NULL;
3864 goto not_enough_data;
3865 stream_lang_idx = gst_asf_demux_get_uint16 (&data, &size);
3866 if (!gst_asf_demux_get_string (&stream_name, NULL, &data, &size))
3867 goto not_enough_data;
3868 GST_INFO ("stream name %d: %s", i, GST_STR_NULL (stream_name));
3869 g_free (stream_name); /* TODO: store names in struct */
3872 /* read payload extension systems stuff */
3873 GST_LOG ("payload extension systems count = %u", num_payload_ext);
3875 if (num_payload_ext > 0)
3876 esp.payload_extensions = g_new0 (AsfPayloadExtension, num_payload_ext + 1);
3878 esp.payload_extensions = NULL;
3880 for (i = 0; i < num_payload_ext; ++i) {
3881 AsfPayloadExtension ext;
3883 guint32 sys_info_len;
3885 if (size < 16 + 2 + 4)
3886 goto not_enough_data;
3888 gst_asf_demux_get_guid (&ext_guid, &data, &size);
3889 ext.id = gst_asf_demux_identify_guid (asf_payload_ext_guids, &ext_guid);
3890 ext.len = gst_asf_demux_get_uint16 (&data, &size);
3892 sys_info_len = gst_asf_demux_get_uint32 (&data, &size);
3893 GST_LOG ("payload systems info len = %u", sys_info_len);
3894 if (!gst_asf_demux_skip_bytes (sys_info_len, &data, &size))
3895 goto not_enough_data;
3897 esp.payload_extensions[i] = ext;
3900 GST_LOG ("bytes read: %u/%u", (guint) (data - data_start), obj_size);
3902 /* there might be an optional STREAM_INFO object here now; if not, we
3903 * should have parsed the corresponding stream info object already (since
3904 * we are parsing the extended stream properties objects delayed) */
3906 stream = gst_asf_demux_get_stream (demux, stream_num);
3910 /* get size of the stream object */
3911 if (!asf_demux_peek_object (demux, data, size, &stream_obj, TRUE))
3912 goto not_enough_data;
3914 if (stream_obj.id != ASF_OBJ_STREAM)
3915 goto expected_stream_object;
3917 if (stream_obj.size < ASF_OBJECT_HEADER_SIZE ||
3918 stream_obj.size > (10 * 1024 * 1024))
3919 goto not_enough_data;
3921 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, &data, &size);
3923 /* process this stream object later after all the other 'normal' ones
3924 * have been processed (since the others are more important/non-hidden) */
3925 len = stream_obj.size - ASF_OBJECT_HEADER_SIZE;
3926 if (!gst_asf_demux_get_bytes (&stream_obj_data, len, &data, &size))
3927 goto not_enough_data;
3929 /* parse stream object */
3930 stream = gst_asf_demux_parse_stream_object (demux, stream_obj_data, len);
3931 g_free (stream_obj_data);
3936 stream->ext_props = esp;
3938 /* try to set the framerate */
3939 if (stream->is_video && stream->caps) {
3940 GValue framerate = { 0 };
3944 g_value_init (&framerate, GST_TYPE_FRACTION);
3946 num = GST_SECOND / 100;
3947 denom = esp.avg_time_per_frame;
3949 /* avoid division by 0, assume 25/1 framerate */
3950 denom = GST_SECOND / 2500;
3953 gst_value_set_fraction (&framerate, num, denom);
3955 stream->caps = gst_caps_make_writable (stream->caps);
3956 s = gst_caps_get_structure (stream->caps, 0);
3957 gst_structure_set_value (s, "framerate", &framerate);
3958 g_value_unset (&framerate);
3959 GST_DEBUG_OBJECT (demux, "setting framerate of %d/%d = %f",
3960 num, denom, ((gdouble) num) / denom);
3963 /* add language info now if we have it */
3964 if (stream->ext_props.lang_idx < demux->num_languages) {
3965 if (stream->pending_tags == NULL)
3966 stream->pending_tags = gst_tag_list_new_empty ();
3967 GST_LOG_OBJECT (demux, "stream %u has language '%s'", stream->id,
3968 demux->languages[stream->ext_props.lang_idx]);
3969 gst_tag_list_add (stream->pending_tags, GST_TAG_MERGE_APPEND,
3970 GST_TAG_LANGUAGE_CODE, demux->languages[stream->ext_props.lang_idx],
3973 } else if (gst_asf_demux_is_unknown_stream (demux, stream_num)) {
3974 GST_WARNING_OBJECT (demux, "Ext. stream properties for unknown stream");
3982 GST_WARNING_OBJECT (demux, "short read parsing ext stream props object!");
3983 return GST_FLOW_OK; /* not absolutely fatal */
3985 expected_stream_object:
3987 GST_WARNING_OBJECT (demux, "error parsing extended stream properties "
3988 "object: expected embedded stream object, but got %s object instead!",
3989 gst_asf_get_guid_nick (asf_object_guids, stream_obj.id));
3990 return GST_FLOW_OK; /* not absolutely fatal */
3994 static const gchar *
3995 gst_asf_demux_push_obj (GstASFDemux * demux, guint32 obj_id)
3999 nick = gst_asf_get_guid_nick (asf_object_guids, obj_id);
4000 if (g_str_has_prefix (nick, "ASF_OBJ_"))
4001 nick += strlen ("ASF_OBJ_");
4003 if (demux->objpath == NULL) {
4004 demux->objpath = g_strdup (nick);
4008 newpath = g_strdup_printf ("%s/%s", demux->objpath, nick);
4009 g_free (demux->objpath);
4010 demux->objpath = newpath;
4013 return (const gchar *) demux->objpath;
4017 gst_asf_demux_pop_obj (GstASFDemux * demux)
4021 if ((s = g_strrstr (demux->objpath, "/"))) {
4024 g_free (demux->objpath);
4025 demux->objpath = NULL;
4030 gst_asf_demux_process_queued_extended_stream_objects (GstASFDemux * demux)
4035 /* Parse the queued extended stream property objects and add the info
4036 * to the existing streams or add the new embedded streams, but without
4037 * activating them yet */
4038 GST_LOG_OBJECT (demux, "%u queued extended stream properties objects",
4039 g_slist_length (demux->ext_stream_props));
4041 for (l = demux->ext_stream_props, i = 0; l != NULL; l = l->next, ++i) {
4042 GstBuffer *buf = GST_BUFFER (l->data);
4045 gst_buffer_map (buf, &map, GST_MAP_READ);
4047 GST_LOG_OBJECT (demux, "parsing ext. stream properties object #%u", i);
4048 gst_asf_demux_process_ext_stream_props (demux, map.data, map.size);
4049 gst_buffer_unmap (buf, &map);
4050 gst_buffer_unref (buf);
4052 g_slist_free (demux->ext_stream_props);
4053 demux->ext_stream_props = NULL;
4058 gst_asf_demux_activate_ext_props_streams (GstASFDemux * demux)
4062 for (i = 0; i < demux->num_streams; ++i) {
4067 stream = &demux->stream[i];
4069 GST_LOG_OBJECT (demux, "checking stream %2u", stream->id);
4071 if (stream->active) {
4072 GST_LOG_OBJECT (demux, "stream %2u is already activated", stream->id);
4077 for (x = demux->mut_ex_streams; x != NULL; x = x->next) {
4080 /* check for each mutual exclusion whether it affects this stream */
4081 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4082 if (*mes == stream->id) {
4083 /* if yes, check if we've already added streams that are mutually
4084 * exclusive with the stream we're about to add */
4085 for (mes = (guint8 *) x->data; mes != NULL && *mes != 0xff; ++mes) {
4086 for (j = 0; j < demux->num_streams; ++j) {
4087 /* if the broadcast flag is set, assume the hidden streams aren't
4088 * actually streamed and hide them (or playbin won't work right),
4089 * otherwise assume their data is available */
4090 if (demux->stream[j].id == *mes && demux->broadcast) {
4092 GST_LOG_OBJECT (demux, "broadcast stream ID %d to be added is "
4093 "mutually exclusive with already existing stream ID %d, "
4094 "hiding stream", stream->id, demux->stream[j].id);
4106 /* FIXME: we should do stream activation based on preroll data in
4107 * streaming mode too */
4108 if (demux->streaming && !is_hidden)
4109 gst_asf_demux_activate_stream (demux, stream);
4114 static GstFlowReturn
4115 gst_asf_demux_process_object (GstASFDemux * demux, guint8 ** p_data,
4118 GstFlowReturn ret = GST_FLOW_OK;
4120 guint64 obj_data_size;
4122 if (*p_size < ASF_OBJECT_HEADER_SIZE)
4123 return ASF_FLOW_NEED_MORE_DATA;
4125 asf_demux_peek_object (demux, *p_data, ASF_OBJECT_HEADER_SIZE, &obj, TRUE);
4126 gst_asf_demux_skip_bytes (ASF_OBJECT_HEADER_SIZE, p_data, p_size);
4128 obj_data_size = obj.size - ASF_OBJECT_HEADER_SIZE;
4130 if (*p_size < obj_data_size)
4131 return ASF_FLOW_NEED_MORE_DATA;
4133 gst_asf_demux_push_obj (demux, obj.id);
4135 GST_INFO ("%s: size %" G_GUINT64_FORMAT, demux->objpath, obj.size);
4138 case ASF_OBJ_STREAM:
4139 gst_asf_demux_parse_stream_object (demux, *p_data, obj_data_size);
4143 ret = gst_asf_demux_process_file (demux, *p_data, obj_data_size);
4145 case ASF_OBJ_HEADER:
4146 ret = gst_asf_demux_process_header (demux, *p_data, obj_data_size);
4148 case ASF_OBJ_COMMENT:
4149 ret = gst_asf_demux_process_comment (demux, *p_data, obj_data_size);
4152 ret = gst_asf_demux_process_header_ext (demux, *p_data, obj_data_size);
4154 case ASF_OBJ_BITRATE_PROPS:
4156 gst_asf_demux_process_bitrate_props_object (demux, *p_data,
4159 case ASF_OBJ_EXT_CONTENT_DESC:
4161 gst_asf_demux_process_ext_content_desc (demux, *p_data,
4164 case ASF_OBJ_METADATA_OBJECT:
4165 ret = gst_asf_demux_process_metadata (demux, *p_data, obj_data_size);
4167 case ASF_OBJ_EXTENDED_STREAM_PROPS:{
4170 /* process these later, we might not have parsed the corresponding
4171 * stream object yet */
4172 GST_LOG ("%s: queued for later parsing", demux->objpath);
4173 buf = gst_buffer_new_and_alloc (obj_data_size);
4174 gst_buffer_fill (buf, 0, *p_data, obj_data_size);
4175 demux->ext_stream_props = g_slist_append (demux->ext_stream_props, buf);
4179 case ASF_OBJ_LANGUAGE_LIST:
4180 ret = gst_asf_demux_process_language_list (demux, *p_data, obj_data_size);
4182 case ASF_OBJ_ADVANCED_MUTUAL_EXCLUSION:
4183 ret = gst_asf_demux_process_advanced_mutual_exclusion (demux, *p_data,
4186 case ASF_OBJ_SIMPLE_INDEX:
4187 ret = gst_asf_demux_process_simple_index (demux, *p_data, obj_data_size);
4189 case ASF_OBJ_CONTENT_ENCRYPTION:
4190 case ASF_OBJ_EXT_CONTENT_ENCRYPTION:
4191 case ASF_OBJ_DIGITAL_SIGNATURE_OBJECT:
4192 case ASF_OBJ_UNKNOWN_ENCRYPTION_OBJECT:
4193 goto error_encrypted;
4194 case ASF_OBJ_CONCEAL_NONE:
4196 case ASF_OBJ_UNDEFINED:
4197 case ASF_OBJ_CODEC_COMMENT:
4199 case ASF_OBJ_PADDING:
4200 case ASF_OBJ_BITRATE_MUTEX:
4201 case ASF_OBJ_COMPATIBILITY:
4202 case ASF_OBJ_INDEX_PLACEHOLDER:
4203 case ASF_OBJ_INDEX_PARAMETERS:
4204 case ASF_OBJ_STREAM_PRIORITIZATION:
4205 case ASF_OBJ_SCRIPT_COMMAND:
4206 case ASF_OBJ_METADATA_LIBRARY_OBJECT:
4208 /* Unknown/unhandled object, skip it and hope for the best */
4209 GST_INFO ("%s: skipping object", demux->objpath);
4214 /* this can't fail, we checked the number of bytes available before */
4215 gst_asf_demux_skip_bytes (obj_data_size, p_data, p_size);
4217 GST_LOG ("%s: ret = %s", demux->objpath, gst_asf_get_flow_name (ret));
4219 gst_asf_demux_pop_obj (demux);
4226 GST_ELEMENT_ERROR (demux, STREAM, DECRYPT, (NULL), (NULL));
4227 return GST_FLOW_ERROR;
4232 gst_asf_demux_descramble_buffer (GstASFDemux * demux, AsfStream * stream,
4233 GstBuffer ** p_buffer)
4235 GstBuffer *descrambled_buffer;
4236 GstBuffer *scrambled_buffer;
4237 GstBuffer *sub_buffer;
4244 /* descrambled_buffer is initialised in the first iteration */
4245 descrambled_buffer = NULL;
4246 scrambled_buffer = *p_buffer;
4248 if (gst_buffer_get_size (scrambled_buffer) <
4249 stream->ds_packet_size * stream->span)
4252 for (offset = 0; offset < gst_buffer_get_size (scrambled_buffer);
4253 offset += stream->ds_chunk_size) {
4254 off = offset / stream->ds_chunk_size;
4255 row = off / stream->span;
4256 col = off % stream->span;
4257 idx = row + col * stream->ds_packet_size / stream->ds_chunk_size;
4258 GST_DEBUG ("idx=%u, row=%u, col=%u, off=%u, ds_chunk_size=%u", idx, row,
4259 col, off, stream->ds_chunk_size);
4260 GST_DEBUG ("scrambled buffer size=%" G_GSIZE_FORMAT
4261 ", span=%u, packet_size=%u", gst_buffer_get_size (scrambled_buffer),
4262 stream->span, stream->ds_packet_size);
4263 GST_DEBUG ("gst_buffer_get_size (scrambled_buffer) = %" G_GSIZE_FORMAT,
4264 gst_buffer_get_size (scrambled_buffer));
4266 gst_buffer_copy_region (scrambled_buffer, GST_BUFFER_COPY_MEMORY,
4267 idx * stream->ds_chunk_size, stream->ds_chunk_size);
4269 descrambled_buffer = sub_buffer;
4271 descrambled_buffer = gst_buffer_append (descrambled_buffer, sub_buffer);
4275 GST_BUFFER_TIMESTAMP (descrambled_buffer) =
4276 GST_BUFFER_TIMESTAMP (scrambled_buffer);
4277 GST_BUFFER_DURATION (descrambled_buffer) =
4278 GST_BUFFER_DURATION (scrambled_buffer);
4279 GST_BUFFER_OFFSET (descrambled_buffer) = GST_BUFFER_OFFSET (scrambled_buffer);
4280 GST_BUFFER_OFFSET_END (descrambled_buffer) =
4281 GST_BUFFER_OFFSET_END (scrambled_buffer);
4283 /* FIXME/CHECK: do we need to transfer buffer flags here too? */
4285 gst_buffer_unref (scrambled_buffer);
4286 *p_buffer = descrambled_buffer;
4290 gst_asf_demux_element_send_event (GstElement * element, GstEvent * event)
4292 GstASFDemux *demux = GST_ASF_DEMUX (element);
4295 GST_DEBUG ("handling element event of type %s", GST_EVENT_TYPE_NAME (event));
4297 for (i = 0; i < demux->num_streams; ++i) {
4298 gst_event_ref (event);
4299 if (gst_asf_demux_handle_src_event (demux->stream[i].pad,
4300 GST_OBJECT_CAST (element), event)) {
4301 gst_event_unref (event);
4306 gst_event_unref (event);
4310 /* takes ownership of the passed event */
4312 gst_asf_demux_send_event_unlocked (GstASFDemux * demux, GstEvent * event)
4314 gboolean ret = TRUE;
4317 GST_DEBUG_OBJECT (demux, "sending %s event to all source pads",
4318 GST_EVENT_TYPE_NAME (event));
4320 for (i = 0; i < demux->num_streams; ++i) {
4321 gst_event_ref (event);
4322 ret &= gst_pad_push_event (demux->stream[i].pad, event);
4324 gst_event_unref (event);
4329 gst_asf_demux_handle_src_query (GstPad * pad, GstObject * parent,
4333 gboolean res = FALSE;
4335 demux = GST_ASF_DEMUX (parent);
4337 GST_DEBUG ("handling %s query",
4338 gst_query_type_get_name (GST_QUERY_TYPE (query)));
4340 switch (GST_QUERY_TYPE (query)) {
4341 case GST_QUERY_DURATION:
4345 gst_query_parse_duration (query, &format, NULL);
4347 if (format != GST_FORMAT_TIME) {
4348 GST_LOG ("only support duration queries in TIME format");
4352 res = gst_pad_query_default (pad, parent, query);
4354 GST_OBJECT_LOCK (demux);
4356 if (demux->segment.duration != GST_CLOCK_TIME_NONE) {
4357 GST_LOG ("returning duration: %" GST_TIME_FORMAT,
4358 GST_TIME_ARGS (demux->segment.duration));
4360 gst_query_set_duration (query, GST_FORMAT_TIME,
4361 demux->segment.duration);
4365 GST_LOG ("duration not known yet");
4368 GST_OBJECT_UNLOCK (demux);
4373 case GST_QUERY_POSITION:{
4376 gst_query_parse_position (query, &format, NULL);
4378 if (format != GST_FORMAT_TIME) {
4379 GST_LOG ("only support position queries in TIME format");
4383 GST_OBJECT_LOCK (demux);
4385 if (demux->segment.position != GST_CLOCK_TIME_NONE) {
4386 GST_LOG ("returning position: %" GST_TIME_FORMAT,
4387 GST_TIME_ARGS (demux->segment.position));
4389 gst_query_set_position (query, GST_FORMAT_TIME,
4390 demux->segment.position);
4394 GST_LOG ("position not known yet");
4397 GST_OBJECT_UNLOCK (demux);
4401 case GST_QUERY_SEEKING:{
4404 gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
4405 if (format == GST_FORMAT_TIME) {
4408 GST_OBJECT_LOCK (demux);
4409 duration = demux->segment.duration;
4410 GST_OBJECT_UNLOCK (demux);
4412 if (!demux->streaming || !demux->seekable) {
4413 gst_query_set_seeking (query, GST_FORMAT_TIME, demux->seekable, 0,
4420 /* try upstream first in TIME */
4421 res = gst_pad_query_default (pad, parent, query);
4423 gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL);
4424 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4425 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4426 /* if no luck, maybe in BYTES */
4427 if (!seekable || fmt != GST_FORMAT_TIME) {
4430 q = gst_query_new_seeking (GST_FORMAT_BYTES);
4431 if ((res = gst_pad_peer_query (demux->sinkpad, q))) {
4432 gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
4433 GST_LOG_OBJECT (demux, "upstream %s seekable %d",
4434 GST_STR_NULL (gst_format_get_name (fmt)), seekable);
4435 if (fmt != GST_FORMAT_BYTES)
4438 gst_query_unref (q);
4439 gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0,
4445 GST_LOG_OBJECT (demux, "only support seeking in TIME format");
4449 case GST_QUERY_LATENCY:
4452 GstClockTime min, max;
4454 /* preroll delay does not matter in non-live pipeline,
4455 * but we might end up in a live (rtsp) one ... */
4458 res = gst_pad_query_default (pad, parent, query);
4462 gst_query_parse_latency (query, &live, &min, &max);
4464 GST_DEBUG_OBJECT (demux, "Peer latency: live %d, min %"
4465 GST_TIME_FORMAT " max %" GST_TIME_FORMAT, live,
4466 GST_TIME_ARGS (min), GST_TIME_ARGS (max));
4468 GST_OBJECT_LOCK (demux);
4469 min += demux->latency;
4471 max += demux->latency;
4472 GST_OBJECT_UNLOCK (demux);
4474 gst_query_set_latency (query, live, min, max);
4477 case GST_QUERY_SEGMENT:
4482 format = demux->segment.format;
4485 gst_segment_to_stream_time (&demux->segment, format,
4486 demux->segment.start);
4487 if ((stop = demux->segment.stop) == -1)
4488 stop = demux->segment.duration;
4490 stop = gst_segment_to_stream_time (&demux->segment, format, stop);
4492 gst_query_set_segment (query, demux->segment.rate, format, start, stop);
4497 res = gst_pad_query_default (pad, parent, query);
4504 static GstStateChangeReturn
4505 gst_asf_demux_change_state (GstElement * element, GstStateChange transition)
4507 GstASFDemux *demux = GST_ASF_DEMUX (element);
4508 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
4510 switch (transition) {
4511 case GST_STATE_CHANGE_NULL_TO_READY:{
4512 gst_segment_init (&demux->segment, GST_FORMAT_TIME);
4513 demux->need_newsegment = TRUE;
4514 demux->segment_running = FALSE;
4515 demux->accurate = FALSE;
4516 demux->adapter = gst_adapter_new ();
4517 demux->metadata = gst_caps_new_empty ();
4518 demux->global_metadata = gst_structure_new_empty ("metadata");
4519 demux->data_size = 0;
4520 demux->data_offset = 0;
4521 demux->index_offset = 0;
4522 demux->base_offset = 0;
4523 demux->flowcombiner = gst_flow_combiner_new ();
4530 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
4531 if (ret == GST_STATE_CHANGE_FAILURE)
4534 switch (transition) {
4535 case GST_STATE_CHANGE_PAUSED_TO_READY:
4536 gst_asf_demux_reset (demux, FALSE);
4539 case GST_STATE_CHANGE_READY_TO_NULL:
4540 gst_asf_demux_reset (demux, FALSE);
4541 gst_flow_combiner_free (demux->flowcombiner);
4542 demux->flowcombiner = NULL;