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gst/matroska/matroska-demux.c: If no Tracks element is found until the first Cluster is found search it and error out...

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Original commit message from CVS:
* gst/matroska/matroska-demux.c:
(gst_matroska_demux_loop_stream_parse_id):
If no Tracks element is found until the first Cluster is found
search it and error out if none is found in the complete file.
This commit is contained in:
Sebastian Dröge 2008-07-02 08:47:00 +00:00
parent b7bd5d283b
commit 5b68f28c94
2 changed files with 75 additions and 3 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2008-07-02 Sebastian Dröge <sebastian.droege@collabora.co.uk>
* gst/matroska/matroska-demux.c:
(gst_matroska_demux_loop_stream_parse_id):
If no Tracks element is found until the first Cluster is found
search it and error out if none is found in the complete file.
2008-07-02 Sebastian Dröge <sebastian.droege@collabora.co.uk>
* gst/matroska/matroska-demux.c: (gst_matroska_demux_sync_streams):

71
gst/matroska/matroska-demux.c
View file

@ -4373,7 +4373,7 @@ gst_matroska_demux_loop_stream_parse_id (GstMatroskaDemux * demux,
{
GstEbmlRead *ebml = GST_EBML_READ (demux);
GstFlowReturn ret;
GstFlowReturn ret = GST_FLOW_OK;
switch (id) {
/* stream info
@ -4443,8 +4443,73 @@ gst_matroska_demux_loop_stream_parse_id (GstMatroskaDemux * demux,
case GST_MATROSKA_ID_CLUSTER:
{
if (demux->state != GST_MATROSKA_DEMUX_STATE_DATA) {
/* FIXME: Skip first and try to read TRACKS and other things
* first, then go back here. */
/* We need a Tracks element first before we can output anything.
* Search it!
*/
if (!demux->tracks_parsed) {
GstEbmlLevel *level;
GstFlowReturn iret = GST_FLOW_OK;
guint32 iid;
guint level_up;
guint64 before_pos;
GST_WARNING_OBJECT (demux,
"Found Cluster element before Tracks, searching Tracks");
/* remember */
level_up = demux->level_up;
before_pos = ebml->offset;
/* we don't want to lose our seekhead level, so we add
* a dummy. This is a crude hack. */
level = g_slice_new (GstEbmlLevel);
level->start = 0;
level->length = G_MAXUINT64;
ebml->level = g_list_prepend (ebml->level, level);
/* Search Tracks element */
while (iret == GST_FLOW_OK) {
if ((iret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
break;
if ((iret =
gst_ebml_peek_id (ebml, &demux->level_up,
&iid)) != GST_FLOW_OK)
break;
if (iid != GST_MATROSKA_ID_TRACKS)
continue;
iret = gst_matroska_demux_parse_tracks (demux);
break;
}
if (!demux->tracks_parsed) {
GST_ERROR_OBJECT (demux, "No Tracks element found");
ret = GST_FLOW_ERROR;
}
/* remove dummy level */
while (ebml->level) {
guint64 length;
level = ebml->level->data;
ebml->level = g_list_delete_link (ebml->level, ebml->level);
length = level->length;
g_slice_free (GstEbmlLevel, level);
if (length == G_MAXUINT64)
break;
}
/* seek back */
gst_ebml_read_seek (ebml, before_pos);
demux->level_up = level_up;
}
if (ret != GST_FLOW_OK)
break;
demux->state = GST_MATROSKA_DEMUX_STATE_DATA;
/* FIXME: different streams might have different lengths! */
/* send initial discont */