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avcodec/nvenc: zero avg and max bitrate in CQ mode

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Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
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Roman Arzumanyan 2020-04-20 13:53:36 +03:00 committed by Timo Rothenpieler
parent 7f76f20fa0
commit 0842fd2c25
1 changed files with 7 additions and 2 deletions
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9
libavcodec/nvenc.c
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@ -947,12 +947,17 @@ static av_cold void nvenc_setup_rate_control(AVCodecContext *avctx)
if (ctx->zerolatency)
ctx->encode_config.rcParams.zeroReorderDelay = 1;
if (ctx->quality)
{
if (ctx->quality) {
//convert from float to fixed point 8.8
int tmp_quality = (int)(ctx->quality * 256.0f);
ctx->encode_config.rcParams.targetQuality = (uint8_t)(tmp_quality >> 8);
ctx->encode_config.rcParams.targetQualityLSB = (uint8_t)(tmp_quality & 0xff);
av_log(avctx, AV_LOG_VERBOSE, "CQ(%d) mode enabled.\n", tmp_quality);
//CQ mode shall discard max & avg bitrate;
avctx->bit_rate = ctx->encode_config.rcParams.averageBitRate = 0;
avctx->rc_max_rate = ctx->encode_config.rcParams.maxBitRate = 0;
}
}