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Code Issues Releases Activity

jpeg: rgb support

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Fixes Ticket297

Based on a patch by Carl
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-11-02 02:26:28 +01:00
parent 3638f56dca
commit c36edf3899
1 changed files with 7 additions and 0 deletions
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7
libavcodec/mjpegdec.c
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@ -325,10 +325,14 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
case 0x11111100:
if(s->rgb){
s->avctx->pix_fmt = PIX_FMT_BGRA;
}else{
if(s->component_id[0] == 'Q' && s->component_id[1] == 'F' && s->component_id[2] == 'A'){
s->avctx->pix_fmt = PIX_FMT_GBR24P;
}else{
s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV444P : PIX_FMT_YUVJ444P;
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
}
}
assert(s->nb_components==3);
break;
case 0x11000000:
@ -992,6 +996,9 @@ int ff_mjpeg_decode_sos(MJpegDecodeContext *s,
&& nb_components == 3 && s->nb_components == 3 && i)
index = 3 - i;
if(nb_components == 3 && s->nb_components == 3 && s->avctx->pix_fmt == PIX_FMT_GBR24P)
index = (i+2)%3;
s->comp_index[i] = index;
s->nb_blocks[i] = s->h_count[index] * s->v_count[index];