diff options
| author | Gyan Doshi <ffmpeg@gyani.pro> | 2021-07-11 10:08:33 +0530 |
|---|---|---|
| committer | Gyan Doshi <ffmpeg@gyani.pro> | 2021-07-12 09:33:22 +0530 |
| commit | 1aa9dcd091ed9cebf06c4c6a9c96ff80a54722f4 (patch) | |
| tree | 0d8c7288a4d96e7e1d6508dffdadfb7a635bdfc8 | |
| parent | 6f9570a63314051b3b333918eb13caae7498d6a4 (diff) | |
avcodec/qsvenc: clip global_quality for ICQ modes.
Allowed range is 1 to 51.
Ref: https://software.intel.com/content/www/us/en/develop/articles/advanced-bitrate-control-methods-in-intel-media-sdk.html
| -rw-r--r-- | doc/encoders.texi | 3 | ||||
| -rw-r--r-- | libavcodec/qsvenc.c | 2 |
2 files changed, 3 insertions, 2 deletions
diff --git a/doc/encoders.texi b/doc/encoders.texi index 4c38996372..8fccd73691 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -3119,7 +3119,8 @@ also set (the @option{-qscale} ffmpeg option). @option{look_ahead} option is also set. @item -@var{ICQ} -- intelligent constant quality otherwise. +@var{ICQ} -- intelligent constant quality otherwise. For the ICQ modes, global +quality range is 1 to 51, with 1 being the best quality. @end itemize @item diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c index ca2b42cafd..b9a922d6b9 100644 --- a/libavcodec/qsvenc.c +++ b/libavcodec/qsvenc.c @@ -650,7 +650,7 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q) case MFX_RATECONTROL_LA_ICQ: q->extco2.LookAheadDepth = q->look_ahead_depth; case MFX_RATECONTROL_ICQ: - q->param.mfx.ICQQuality = avctx->global_quality; + q->param.mfx.ICQQuality = av_clip(avctx->global_quality, 1, 51); break; #endif #endif |