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oggstream: additional tag extraction

Browse source 
... supporting theora, flac, speex, celt.

Fixes #629349.
This commit is contained in:
Mark Nauwelaerts 2010-10-27 13:49:41 +02:00
parent d5055a9f23
commit 524b7c60f2
1 changed files with 45 additions and 4 deletions
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49
ext/ogg/gstoggstream.c
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@ -429,6 +429,22 @@ is_header_theora (GstOggStream * pad, ogg_packet * packet)
return (packet->bytes > 0 && (packet->packet[0] & 0x80) == 0x80);
}
static void
extract_tags_theora (GstOggStream * pad, ogg_packet * packet)
{
if (packet->bytes > 0 && packet->packet[0] == 0x81) {
tag_list_from_vorbiscomment_packet (packet,
(const guint8 *) "\201theora", 7, &pad->taglist);
if (!pad->taglist)
pad->taglist = gst_tag_list_new ();
if (pad->bitrate)
gst_tag_list_add (pad->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_BITRATE, (guint) pad->bitrate, NULL);
}
}
/* dirac */
static gboolean
@ -828,6 +844,22 @@ setup_speex_mapper (GstOggStream * pad, ogg_packet * packet)
return TRUE;
}
static void
extract_tags_count (GstOggStream * pad, ogg_packet * packet)
{
/* packet 2 must be comment packet */
if (packet->bytes > 0 && pad->n_header_packets_seen == 1) {
tag_list_from_vorbiscomment_packet (packet, NULL, 0, &pad->taglist);
if (!pad->taglist)
pad->taglist = gst_tag_list_new ();
if (pad->bitrate)
gst_tag_list_add (pad->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_BITRATE, (guint) pad->bitrate, NULL);
}
}
/* flac */
@ -937,6 +969,15 @@ packet_duration_flac (GstOggStream * pad, ogg_packet * packet)
return -1;
}
static void
extract_tags_flac (GstOggStream * pad, ogg_packet * packet)
{
if (packet->bytes > 4 && ((packet->packet[0] & 0x7F) == 0x4)) {
tag_list_from_vorbiscomment_packet (packet,
packet->packet, 4, &pad->taglist);
}
}
/* fishead */
static gboolean
@ -1705,7 +1746,7 @@ const GstOggMap mappers[] = {
is_header_theora,
packet_duration_constant,
NULL,
NULL
extract_tags_theora
},
{
"\001vorbis", 7, 22,
@ -1729,7 +1770,7 @@ const GstOggMap mappers[] = {
is_header_count,
packet_duration_constant,
NULL,
NULL
extract_tags_count
},
{
"PCM ", 8, 0,
@ -1801,7 +1842,7 @@ const GstOggMap mappers[] = {
is_header_flac,
packet_duration_flac,
NULL,
NULL
extract_tags_flac
},
{
"AnxData", 7, 0,
@ -1824,7 +1865,7 @@ const GstOggMap mappers[] = {
is_header_count,
packet_duration_constant,
NULL,
NULL
extract_tags_count
},
{
"\200kate\0\0\0", 8, 0,