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avcodec/libvpxenc: Set min/max quantizer to 0 for lossless mode 

Fixes Ticket4246

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-20 16:40:43 +01:00
parent d6dba15b97
commit 2a8198b32f
1 changed files with 9 additions and 4 deletions
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13
libavcodec/libvpxenc.c
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@ -330,10 +330,15 @@ static av_cold int vpx_init(AVCodecContext *avctx,
}
}
if (avctx->qmin >= 0)
enccfg.rc_min_quantizer = avctx->qmin;
if (avctx->qmax >= 0)
enccfg.rc_max_quantizer = avctx->qmax;
if (avctx->codec_id == AV_CODEC_ID_VP9 && ctx->lossless == 1) {
enccfg.rc_min_quantizer =
enccfg.rc_max_quantizer = 0;
} else {
if (avctx->qmin >= 0)
enccfg.rc_min_quantizer = avctx->qmin;
if (avctx->qmax >= 0)
enccfg.rc_max_quantizer = avctx->qmax;
}
if (enccfg.rc_end_usage == VPX_CQ
#if CONFIG_LIBVPX_VP9_ENCODER