Somehow it seems, that this patch never got onto the mailing list. So may I kindly ask you to review it.
-- Stay hungry, stay foolish > Am 26.01.2022 um 17:31 schrieb Simone Karin Lehmann <sim...@lisanet.de>: > > > The patch adds an option to the hevc_videotoolbox encoder to prioritize speed > for Macs with Apple Silicon CPU. > > This speeds up encodings up to 50% - 70%. In conjunction with the qcale > option -q, visible quality will be unchanged. The increase in file size is > very moderate, although still depending on the source material. > > > Signed-off-by: Simone Karin Lehmann <sim...@lisanet.de> > --- > libavcodec/videotoolboxenc.c | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/libavcodec/videotoolboxenc.c b/libavcodec/videotoolboxenc.c > index 418ff00b8d..ab0dad6cbc 100644 > --- a/libavcodec/videotoolboxenc.c > +++ b/libavcodec/videotoolboxenc.c > @@ -236,6 +236,7 @@ typedef struct VTEncContext { > int allow_sw; > int require_sw; > double alpha_quality; > + int64_t prio_speed; > > bool flushing; > int has_b_frames; > @@ -1145,6 +1146,17 @@ static int vtenc_create_encoder(AVCodecContext > *avctx, > return AVERROR_EXTERNAL; > } > > + // prioritize speed over quality > + if (vtctx->prio_speed) { > + status = VTSessionSetProperty(vtctx->session, > + > kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality, > + kCFBooleanTrue); > + if (status) { > + av_log(avctx, AV_LOG_ERROR, "Error setting > PrioritizeEncodingSpeedOverQuality property: %d\n", status); > + return AVERROR_EXTERNAL; > + } > + } > + > if ((vtctx->codec_id == AV_CODEC_ID_H264 || vtctx->codec_id == > AV_CODEC_ID_HEVC) > && max_rate > 0) { > bytes_per_second_value = max_rate >> 3; > @@ -2744,6 +2756,7 @@ static const AVOption hevc_options[] = { > { "main10", "Main10 Profile", 0, AV_OPT_TYPE_CONST, { .i64 = > HEVC_PROF_MAIN10 }, INT_MIN, INT_MAX, VE, "profile" }, > > { "alpha_quality", "Compression quality for the alpha channel", > OFFSET(alpha_quality), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0.0, 1.0, VE }, > + { "prio_speed", "prioritize encoding speed", OFFSET(prio_speed), > AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, > > COMMON_OPTIONS > { NULL }, > -- > 2.32.0 (Apple Git-132) _______________________________________________ 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".