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Code Issues Releases Activity

avformat/tta: remove custom crc callback function

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Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2016-08-04 16:17:44 -03:00
parent 155f4e9630
commit ce944e8489
1 changed files with 2 additions and 8 deletions
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10
libavformat/tta.c
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@ -35,12 +35,6 @@ typedef struct TTAContext {
int last_frame_size;
} TTAContext;
static unsigned long tta_check_crc(unsigned long checksum, const uint8_t *buf,
unsigned int len)
{
return av_crc(av_crc_get_table(AV_CRC_32_IEEE_LE), checksum, buf, len);
}
static int tta_probe(AVProbeData *p)
{
if (AV_RL32(&p->buf[0]) == MKTAG('T', 'T', 'A', '1') &&
@ -65,7 +59,7 @@ static int tta_read_header(AVFormatContext *s)
start_offset = avio_tell(s->pb);
if (start_offset < 0)
return start_offset;
ffio_init_checksum(s->pb, tta_check_crc, UINT32_MAX);
ffio_init_checksum(s->pb, ff_crcEDB88320_update, UINT32_MAX);
if (avio_rl32(s->pb) != AV_RL32("TTA1"))
return AVERROR_INVALIDDATA;
@ -121,7 +115,7 @@ static int tta_read_header(AVFormatContext *s)
avio_seek(s->pb, start_offset, SEEK_SET);
avio_read(s->pb, st->codecpar->extradata, st->codecpar->extradata_size);
ffio_init_checksum(s->pb, tta_check_crc, UINT32_MAX);
ffio_init_checksum(s->pb, ff_crcEDB88320_update, UINT32_MAX);
for (i = 0; i < c->totalframes; i++) {
uint32_t size = avio_rl32(s->pb);
int r;