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avcodec/mjpegdec: factorize parse_avid out

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-03-19 17:57:02 +01:00
parent 074db4b764
commit 1083c479eb
1 changed files with 8 additions and 3 deletions
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11
libavcodec/mjpegdec.c
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@ -83,6 +83,13 @@ static void build_basic_mjpeg_vlc(MJpegDecodeContext *s)
avpriv_mjpeg_val_ac_chrominance, 251, 0, 0);
}
static void parse_avid(MJpegDecodeContext *s, uint8_t *buf, int len)
{
s->buggy_avid = 1;
if (len > 14 && buf[12] == 1) /* 1 - NTSC */
s->interlace_polarity = 1;
}
av_cold int ff_mjpeg_decode_init(AVCodecContext *avctx)
{
MJpegDecodeContext *s = avctx->priv_data;
@ -1694,9 +1701,7 @@ static int mjpeg_decode_com(MJpegDecodeContext *s)
/* buggy avid, it puts EOI only at every 10th frame */
if (!strncmp(cbuf, "AVID", 4)) {
s->buggy_avid = 1;
if (len > 14 && cbuf[12] == 1) /* 1 - NTSC, 2 - PAL */
s->interlace_polarity = 1;
parse_avid(s, cbuf, len);
} else if (!strcmp(cbuf, "CS=ITU601"))
s->cs_itu601 = 1;
else if ((!strncmp(cbuf, "Intel(R) JPEG Library, version 1", 32)) ||