Signed-off-by: Linjie Fu <linjie...@intel.com> --- doc/encoders.texi | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/doc/encoders.texi b/doc/encoders.texi index eefd124751..2e54dcc15f 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -2899,6 +2899,13 @@ will refer only to P- or I-frames. When set to greater values multiple layers of B-frames will be present, frames in each layer only referring to frames in higher layers. +@item trellis +Trellis quantization can improve data compression in DCT-based encoding methods. +It reduces the size of some DCT coefficients while recovering others to take their +place. This process can increase quality by effectively finding the optimal +quantization for each block to maximize the PSNR relative to bitrate. +Set to off/I/P/B to disable or enable trellis quantization for I/P/B frames. + @item rc_mode Set the rate control mode to use. A given driver may only support a subset of modes. -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
