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greyscale decoding (option to skip u,v planes) support

Originally committed as revision 3487 to svn://svn.ffmpeg.org/ffmpeg/trunk
tags/v0.5
Alex Beregszaszi 20 years ago
parent
commit
f970a8e682
1 changed files with 8 additions and 0 deletions
  1. +8
    -0
      libavcodec/indeo3.c

+ 8
- 0
libavcodec/indeo3.c View File

@@ -223,6 +223,9 @@ static unsigned long iv_decode_frame(Indeo3DecodeContext *s,
hdr_height, buf_pos + offs * 2, fflags2, hdr_pos, buf_pos,
min(hdr_width, 160));

if (!(s->avctx->flags & CODEC_FLAG_GRAY))
{

buf_pos = buf + 16 + offs2;
offs = le2me_32(*(uint32_t *)buf_pos);
buf_pos += 4;
@@ -239,6 +242,8 @@ static unsigned long iv_decode_frame(Indeo3DecodeContext *s,
chroma_height, buf_pos + offs * 2, fflags2, hdr_pos, buf_pos,
min(chroma_width, 40));

}

return 8;
}

@@ -1080,6 +1085,8 @@ static int indeo3_decode_frame(AVCodecContext *avctx,
dest += s->frame.linesize[0];
}

if (!(s->avctx->flags & CODEC_FLAG_GRAY))
{
src = s->cur_frame->Ubuf;
dest = s->frame.data[1];
for (y = 0; y < s->height / 4; y++) {
@@ -1095,6 +1102,7 @@ static int indeo3_decode_frame(AVCodecContext *avctx,
src += s->cur_frame->uv_w;
dest += s->frame.linesize[2];
}
}

*data_size=sizeof(AVFrame);
*(AVFrame*)data= s->frame;


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