> -----Original Message----- > From: Aman Gupta [mailto:a...@tmm1.net] On Behalf Of Aman Gupta > Sent: Tuesday, August 13, 2019 09:05 > To: ffmpeg-devel@ffmpeg.org > Cc: s...@jkqxz.net; Fu, Linjie <linjie...@intel.com>; Aman Gupta > <a...@tmm1.net> > Subject: [PATCH v2 2/2] vaapi_encode: fix VBR mode generating low bitrates > > From: Aman Gupta <a...@tmm1.net> > > On some Intel chips, sending VAEncMiscParameterTypeRateControl multiple > times causes the encoder to produce very low bitrates that do not match > the requested rate controls. > > This is a regression as of af532c921575eb8ee805cc2c64a914f6302442e1. Prior > to that global params were sent only once at the start of the > encoding session. > > The broken VBR behavior was observed on: > > - i5-7260U Kaby Lake > - N3060 CherryView > - N3710 CherryView > - J3455 Broxton > > /cc intel/intel-vaapi-driver#480
If it's a driver related issue, IMHO we'd better have it fixed in specific driver. Also commented on #480. - linjie _______________________________________________ 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".
