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lavf: stop using avpriv_flac_parse_streaminfo()

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The only parameters needed by the demuxers are the sample rate and sample
count, which can be trivially extracted manually, without resorting to
an avpriv function.
This commit is contained in:
Anton Khirnov
2014-08-28 10:13:25 +00:00
parent 56dc46a189
commit 7784f47762
3 changed files with 19 additions and 15 deletions
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11
libavformat/oggparseflac.c
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@@ -34,7 +34,6 @@ flac_header (AVFormatContext * s, int idx)
struct ogg_stream *os = ogg->streams + idx;
AVStream *st = s->streams[idx];
GetBitContext gb;
FLACStreaminfo si;
int mdt;
if (os->buf[os->pstart] == 0xff)
@@ -46,6 +45,8 @@ flac_header (AVFormatContext * s, int idx)
if (mdt == OGG_FLAC_METADATA_TYPE_STREAMINFO) {
uint8_t *streaminfo_start = os->buf + os->pstart + 5 + 4 + 4 + 4;
uint32_t samplerate;
skip_bits_long(&gb, 4*8); /* "FLAC" */
if(get_bits(&gb, 8) != 1) /* unsupported major version */
return -1;
@@ -56,8 +57,6 @@ flac_header (AVFormatContext * s, int idx)
if (get_bits_long(&gb, 32) != FLAC_STREAMINFO_SIZE)
return -1;
avpriv_flac_parse_streaminfo(st->codec, &si, streaminfo_start);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = AV_CODEC_ID_FLAC;
st->need_parsing = AVSTREAM_PARSE_HEADERS;
@@ -67,7 +66,11 @@ flac_header (AVFormatContext * s, int idx)
memcpy(st->codec->extradata, streaminfo_start, FLAC_STREAMINFO_SIZE);
st->codec->extradata_size = FLAC_STREAMINFO_SIZE;
avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
samplerate = AV_RB24(st->codec->extradata + 10) >> 4;
if (!samplerate)
return AVERROR_INVALIDDATA;
avpriv_set_pts_info(st, 64, 1, samplerate);
} else if (mdt == FLAC_METADATA_TYPE_VORBIS_COMMENT) {
ff_vorbis_stream_comment(s, st, os->buf + os->pstart + 4, os->psize - 4);
}