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oggdemux: Parse segment length and content offset from fishead

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And print them for debugging purposes. Not sure if we can do anything useful
with this information.
This commit is contained in:
Sebastian Dröge 2010-06-08 11:40:32 +02:00
parent aa8daa862e
commit f213c8ebe3
1 changed files with 18 additions and 2 deletions
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20
ext/ogg/gstoggstream.c
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@ -61,6 +61,7 @@ typedef gint64 (*GstOggMapGranuleposToKeyGranuleFunc) (GstOggStream * pad,
#define SKELETON_FISBONE_MIN_SIZE 52
#define SKELETON_FISHEAD_3_3_MIN_SIZE 112
#define SKELETON_FISHEAD_4_0_MIN_SIZE 80
struct _GstOggMap
{
@ -857,21 +858,27 @@ setup_fishead_mapper (GstOggStream * pad, ogg_packet * packet)
else
pad->prestime = -1;
/* Ogg Skeleton 3.3 streams provide additional information in the header */
if (packet->bytes >= SKELETON_FISHEAD_3_3_MIN_SIZE) {
/* Ogg Skeleton 3.3+ streams provide additional information in the header */
if (packet->bytes >= SKELETON_FISHEAD_3_3_MIN_SIZE && pad->skeleton_major == 3
&& pad->skeleton_minor > 0) {
gint64 firstsampletime_n, firstsampletime_d;
gint64 lastsampletime_n, lastsampletime_d;
gint64 firstsampletime, lastsampletime;
guint64 segment_length, content_offset;
firstsampletime_n = GST_READ_UINT64_LE (data + 64);
firstsampletime_d = GST_READ_UINT64_LE (data + 72);
lastsampletime_n = GST_READ_UINT64_LE (data + 80);
lastsampletime_d = GST_READ_UINT64_LE (data + 88);
segment_length = GST_READ_UINT64_LE (data + 96);
content_offset = GST_READ_UINT64_LE (data + 104);
GST_INFO ("firstsampletime %" G_GUINT64_FORMAT "/%" G_GUINT64_FORMAT,
firstsampletime_n, firstsampletime_d);
GST_INFO ("lastsampletime %" G_GUINT64_FORMAT "/%" G_GUINT64_FORMAT,
lastsampletime_n, lastsampletime_d);
GST_INFO ("segment length %" G_GUINT64_FORMAT, segment_length);
GST_INFO ("content offset %" G_GUINT64_FORMAT, content_offset);
if (firstsampletime_d > 0)
firstsampletime = gst_util_uint64_scale (GST_SECOND,
@ -892,6 +899,15 @@ setup_fishead_mapper (GstOggStream * pad, ogg_packet * packet)
GST_INFO ("skeleton fishead parsed total: %" GST_TIME_FORMAT,
GST_TIME_ARGS (pad->total_time));
} else if (packet->bytes >= SKELETON_FISHEAD_4_0_MIN_SIZE
&& pad->skeleton_major == 4) {
guint64 segment_length, content_offset;
segment_length = GST_READ_UINT64_LE (data + 64);
content_offset = GST_READ_UINT64_LE (data + 72);
GST_INFO ("segment length %" G_GUINT64_FORMAT, segment_length);
GST_INFO ("content offset %" G_GUINT64_FORMAT, content_offset);
} else {
pad->total_time = -1;
}