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cdgraphics: do not rely on get_buffer() initializing the frame. 

Setting it to zero (instead of 128, as the default get_buffer() does)
also produces more correctly-looking output.
This commit is contained in:
Anton Khirnov 2013-01-26 22:02:19 +01:00
parent 6ed9fc44ba
commit 238614de67
3 changed files with 19 additions and 17 deletions
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2
cmdutils.c
View File

@ -1566,7 +1566,7 @@ static int alloc_buffer(FrameBuffer **pool, AVCodecContext *s, FrameBuffer **pbu
/* XXX this shouldn't be needed, but some tests break without this line
* those decoders are buggy and need to be fixed.
* the following tests fail:
* cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
* ansi, aasc, fraps-v1, qtrle-1bit
*/
memset(buf->base[0], 128, ret);

2
libavcodec/cdgraphics.c
View File

@ -287,6 +287,8 @@ static int cdg_decode_frame(AVCodecContext *avctx,
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
return ret;
}
if (!avctx->frame_number)
memset(cc->frame.data[0], 0, cc->frame.linesize[0] * avctx->height);
command = bytestream_get_byte(&buf);
inst = bytestream_get_byte(&buf);

32
tests/ref/fate/cdgraphics
View File

@ -1,20 +1,20 @@
#tb 0: 1/300
0, 0, 0, 1, 194400, 0xd919c635
0, 1, 1, 1, 194400, 0xd919c635
0, 2, 2, 1, 194400, 0x516a1007
0, 3, 3, 1, 194400, 0x516a1007
0, 4, 4, 1, 194400, 0x516a1007
0, 5, 5, 1, 194400, 0x516a1007
0, 6, 6, 1, 194400, 0x516a1007
0, 7, 7, 1, 194400, 0x516a1007
0, 8, 8, 1, 194400, 0x516a1007
0, 9, 9, 1, 194400, 0x516a1007
0, 10, 10, 1, 194400, 0x516a1007
0, 11, 11, 1, 194400, 0x516a1007
0, 12, 12, 1, 194400, 0x516a1007
0, 13, 13, 1, 194400, 0x516a1007
0, 14, 14, 1, 194400, 0x516a1007
0, 15, 15, 1, 194400, 0x516a1007
0, 0, 0, 1, 194400, 0x46ad80da
0, 1, 1, 1, 194400, 0x46ad80da
0, 2, 2, 1, 194400, 0x9392c3b9
0, 3, 3, 1, 194400, 0x9392c3b9
0, 4, 4, 1, 194400, 0x9392c3b9
0, 5, 5, 1, 194400, 0x9392c3b9
0, 6, 6, 1, 194400, 0x9392c3b9
0, 7, 7, 1, 194400, 0x9392c3b9
0, 8, 8, 1, 194400, 0x9392c3b9
0, 9, 9, 1, 194400, 0x9392c3b9
0, 10, 10, 1, 194400, 0x9392c3b9
0, 11, 11, 1, 194400, 0x9392c3b9
0, 12, 12, 1, 194400, 0x9392c3b9
0, 13, 13, 1, 194400, 0x9392c3b9
0, 14, 14, 1, 194400, 0x9392c3b9
0, 15, 15, 1, 194400, 0x9392c3b9
0, 16, 16, 1, 194400, 0x46ad80da
0, 17, 17, 1, 194400, 0x46ad80da
0, 18, 18, 1, 194400, 0x46ad80da