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| author | Roman Arzumanyan <rarzumanyan@nvidia.com> | 2020-04-20 13:53:36 +0300 |
|---|---|---|
| committer | Timo Rothenpieler <timo@rothenpieler.org> | 2020-06-01 19:23:47 +0200 |
| commit | 0842fd2c25c050e595083ba1e8c5176da3d55c9b (patch) | |
| tree | ee548b7d802f40673fffa665def0d227ae262d57 | |
| parent | 7f76f20fa0a8aad6de50634a5cb60dc53117d6ab (diff) | |
| download | ffmpeg-0842fd2c25c050e595083ba1e8c5176da3d55c9b.tar.gz | |
avcodec/nvenc: zero avg and max bitrate in CQ mode
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
| -rw-r--r-- | libavcodec/nvenc.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c index cbdddd33f9..a9f9600fde 100644 --- a/libavcodec/nvenc.c +++ b/libavcodec/nvenc.c @@ -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; } } |