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mlp_parser: Initialize crc data in its own function.

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Originally committed as revision 14722 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ramiro Polla 2008-08-13 02:44:38 +00:00
parent 5dae0dd22c
commit ee5b34d56e
1 changed files with 9 additions and 4 deletions
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13
libavcodec/mlp_parser.c
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@ -77,14 +77,19 @@ static uint16_t mlp_checksum16(const uint8_t *buf, unsigned int buf_size)
{ {
uint16_t crc; uint16_t crc;
crc = av_crc(crc_2D, 0, buf, buf_size - 2);
crc ^= AV_RL16(buf + buf_size - 2);
return crc;
}
static int av_cold mlp_parse_init(AVCodecParserContext *s)
{
if (!crc_init) { if (!crc_init) {
av_crc_init(crc_2D, 0, 16, 0x002D, sizeof(crc_2D)); av_crc_init(crc_2D, 0, 16, 0x002D, sizeof(crc_2D));
crc_init = 1; crc_init = 1;
} }
crc = av_crc(crc_2D, 0, buf, buf_size - 2); return 0;
crc ^= AV_RL16(buf + buf_size - 2);
return crc;
} }
/** Read a major sync info header - contains high level information about /** Read a major sync info header - contains high level information about
@ -305,7 +310,7 @@ lost_sync:
AVCodecParser mlp_parser = { AVCodecParser mlp_parser = {
{ CODEC_ID_MLP }, { CODEC_ID_MLP },
sizeof(MLPParseContext), sizeof(MLPParseContext),
NULL, mlp_parse_init,
mlp_parse, mlp_parse,
NULL, NULL,
}; };