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libavcodec/qsvenc.c: fix incorrect loop condition.

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For example, the encoder may return MFX_WRN_INCOMPATIBLE_VIDEO_PARAM warning
i.e. ret==5 old loop implementation will repeat several times until output buffer
overflow. New implementation explicitly uses loop only for device busy case.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Ivan Uskov 2015-07-07 20:33:36 +03:00 committed by Michael Niedermayer
parent 0054d5ac02
commit b409748bc4
1 changed files with 5 additions and 2 deletions
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7
libavcodec/qsvenc.c
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@ -399,9 +399,12 @@ int ff_qsv_encode(AVCodecContext *avctx, QSVEncContext *q,
do {
ret = MFXVideoENCODE_EncodeFrameAsync(q->session, NULL, surf, &bs, &sync);
if (ret == MFX_WRN_DEVICE_BUSY)
if (ret == MFX_WRN_DEVICE_BUSY) {
av_usleep(1);
} while (ret > 0);
continue;
}
break;
} while ( 1 );
if (ret < 0)
return (ret == MFX_ERR_MORE_DATA) ? 0 : ff_qsv_error(ret);