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Check the 4th plane too when selecting the pixfmt.

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Fixes a crash with Test-4-component-YCCK.jpg.

Originally committed as revision 15435 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-09-27 01:50:57 +00:00
parent e73db71899
commit 7c1e33f930
1 changed files with 11 additions and 10 deletions
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21
libavcodec/mjpegdec.c
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@ -284,13 +284,14 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
return 0;
/* XXX: not complete test ! */
pix_fmt_id = (s->h_count[0] << 20) | (s->v_count[0] << 16) |
(s->h_count[1] << 12) | (s->v_count[1] << 8) |
(s->h_count[2] << 4) | s->v_count[2];
pix_fmt_id = (s->h_count[0] << 28) | (s->v_count[0] << 24) |
(s->h_count[1] << 20) | (s->v_count[1] << 16) |
(s->h_count[2] << 12) | (s->v_count[2] << 8) |
(s->h_count[3] << 4) | s->v_count[3];
av_log(s->avctx, AV_LOG_DEBUG, "pix fmt id %x\n", pix_fmt_id);
switch(pix_fmt_id){
case 0x222222:
case 0x111111:
case 0x22222200:
case 0x11111100:
if(s->rgb){
s->avctx->pix_fmt = PIX_FMT_RGB32;
}else if(s->nb_components==3)
@ -298,17 +299,17 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
else
s->avctx->pix_fmt = PIX_FMT_GRAY8;
break;
case 0x110000:
case 0x11000000:
s->avctx->pix_fmt = PIX_FMT_GRAY8;
break;
case 0x121111:
case 0x12111100:
s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV440P : PIX_FMT_YUVJ440P;
break;
case 0x211111:
case 0x221212:
case 0x21111100:
case 0x22121200:
s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV422P : PIX_FMT_YUVJ422P;
break;
case 0x221111:
case 0x22111100:
s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV420P : PIX_FMT_YUVJ420P;
break;
default: