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avcodec/cuviddec: add capability check for maximum macroblock count

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Cuvid supports clips with a limit on maximum number of macroblocks.
This check was missing after cuvidGetDecoderCaps API call allowing
unsupported clips to proceed.
Added the missing check, same as the one in hwaccel nvdec implementation.

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
This commit is contained in:
Ruta Gadkari 2019-05-03 13:41:11 +05:30 • committed by BtbN
parent 06ba4783a0
commit 80155795bb
1 changed files with 6 additions and 0 deletions
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6
libavcodec/cuviddec.c
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@ -805,6 +805,12 @@ static int cuvid_test_capabilities(AVCodecContext *avctx,
return AVERROR(EINVAL);
}
if ((probed_width * probed_height) / 256 > caps->nMaxMBCount) {
av_log(avctx, AV_LOG_ERROR, "Video macroblock count %d exceeds maximum of %d\n",
(int)(probed_width * probed_height) / 256, caps->nMaxMBCount);
return AVERROR(EINVAL);
}
return 0;
}