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mpegts: add all stream languages into metadata

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This is used at least on some older DVB broadcasts for dual-mono audio
tracks.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 6a7e074eb9)
This commit is contained in:
Anssi Hannula
2011-02-17 17:26:34 +02:00
committed by Michael Niedermayer
parent aa612fbb99
commit b543e1dccf
1 changed files with 12 additions and 6 deletions
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18
libavformat/mpegts.c
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@@ -891,7 +891,8 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
{
const uint8_t *desc_end;
int desc_len, desc_tag;
char language[4];
char language[252];
int i;
desc_tag = get8(pp, desc_list_end);
if (desc_tag < 0)
@@ -960,16 +961,21 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
av_metadata_set2(&st->metadata, "language", language, 0);
break;
case 0x0a: /* ISO 639 language descriptor */
language[0] = get8(pp, desc_end);
language[1] = get8(pp, desc_end);
language[2] = get8(pp, desc_end);
language[3] = 0;
av_metadata_set2(&st->metadata, "language", language, 0);
for (i = 0; i + 4 <= desc_len; i += 4) {
language[i + 0] = get8(pp, desc_end);
language[i + 1] = get8(pp, desc_end);
language[i + 2] = get8(pp, desc_end);
language[i + 3] = ',';
switch (get8(pp, desc_end)) {
case 0x01: st->disposition |= AV_DISPOSITION_CLEAN_EFFECTS; break;
case 0x02: st->disposition |= AV_DISPOSITION_HEARING_IMPAIRED; break;
case 0x03: st->disposition |= AV_DISPOSITION_VISUAL_IMPAIRED; break;
}
}
if (i) {
language[i - 1] = 0;
av_metadata_set2(&st->metadata, "language", language, 0);
}
break;
case 0x05: /* registration descriptor */
st->codec->codec_tag = bytestream_get_le32(pp);