On 16/01/2019 14:34, Linjie Fu wrote: > hrd_buffer_size and hrd_initial_buffer_fullness are set in bits, while > driver takes the vbvBuf size in 16 kbits. The mismatch will cause > quality issue. > > One way to solve this issue in FFmpeg level is set the bufsize > specially for mpeg2 as the unit of 16 kbits, and discard the default > CBR mode in driver. > > Fix the quality issue in #7650. > > Signed-off-by: Linjie Fu <linjie...@intel.com> > --- > libavcodec/vaapi_encode.c | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-)
The documentation is very clear that these values are all in bits - <https://github.com/intel/libva/blob/master/va/va.h#L2095-L2100>. Sounds like a driver bug? - Mark _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
