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mjpegdec: Fix field orderforinterlacedAVDJand AVRN in ntsc mode

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Fixes ticket1656

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Piotr Bandurski 2013-05-19 11:24:41 +02:00 committed by Michael Niedermayer
parent 56f7e29dba
commit 2f75dcdc1c
1 changed files with 3 additions and 1 deletions
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4
libavcodec/mjpegdec.c
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@ -1501,8 +1501,10 @@ static int mjpeg_decode_com(MJpegDecodeContext *s)
av_log(s->avctx, AV_LOG_INFO, "comment: '%s'\n", cbuf);
/* buggy avid, it puts EOI only at every 10th frame */
if (!strcmp(cbuf, "AVID")) {
if (len > 3 && (!strncmp(cbuf, "AVID", 4))) {
s->buggy_avid = 1;
if (len > 14 && cbuf[12] == 1) /* 1 - NTSC, 2 - PAL */
s->interlace_polarity = 1;
} else if (!strcmp(cbuf, "CS=ITU601"))
s->cs_itu601 = 1;
else if ((len > 31 && !strncmp(cbuf, "Intel(R) JPEG Library, version 1", 32)) ||