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vmnc: Delay pixel size check 

Some clients incorrectly set 24 as bits_per_coded_sample, while
the actual value is preserved in one of the codec headers.
In order to work around this, delay the check until decode_frame().

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
This commit is contained in:
Vittorio Giovara 2015-05-19 16:57:46 +01:00
parent 732dd65868
commit eafbc6716c
1 changed files with 15 additions and 4 deletions
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19
libavcodec/vmnc.c
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@ -419,10 +419,18 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
c->pic->pict_type = AV_PICTURE_TYPE_I;
depth = bytestream2_get_byte(gb);
if (depth != c->bpp) {
av_log(avctx, AV_LOG_INFO,
"Depth mismatch. Container %i bpp, "
"Frame data: %i bpp\n",
c->bpp, depth);
av_log(avctx, AV_LOG_WARNING, "Depth mismatch. "
"Container %i bpp / Codec %i bpp\n", c->bpp, depth);
if (depth != 8 && depth != 16 && depth != 32) {
av_log(avctx, AV_LOG_ERROR,
"Unsupported codec bitdepth %i\n", depth);
return AVERROR_INVALIDDATA;
}
/* reset values */
c->bpp = depth;
c->bpp2 = c->bpp / 8;
}
bytestream2_skip(gb, 1);
c->bigendian = bytestream2_get_byte(gb);
@ -524,6 +532,9 @@ static av_cold int decode_init(AVCodecContext *avctx)
case 16:
avctx->pix_fmt = AV_PIX_FMT_RGB555;
break;
case 24:
/* 24 bits is not technically supported, but some clients might
* mistakenly set it -- delay the actual check until decode_frame() */
case 32:
avctx->pix_fmt = AV_PIX_FMT_RGB32;
break;