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libavcodec/qsvenc_av1: Add low_delay_brc support to av1_qsv encoder

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Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
This commit is contained in:
Wenbin Chen 2022-12-26 14:02:00 +08:00 committed by Haihao Xiang
parent a598be44df
commit c8e73558fe
3 changed files with 10 additions and 0 deletions
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5
doc/encoders.texi
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@ -3850,6 +3850,11 @@ Extended bitrate control.
@item @var{look_ahead_depth} @item @var{look_ahead_depth}
Depth of look ahead in number frames, available when extbrc option is enabled. Depth of look ahead in number frames, available when extbrc option is enabled.
@item @var{low_delay_brc}
Setting this flag turns on or off LowDelayBRC feautre in qsv plugin, which provides
more accurate bitrate control to minimize the variance of bitstream size frame
by frame. Value: -1-default 0-off 1-on
@end table @end table
@section snow @section snow

4
libavcodec/qsvenc.c
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@ -537,6 +537,7 @@ static void dump_video_av1_param(AVCodecContext *avctx, QSVEncContext *q,
av_log(avctx, AV_LOG_VERBOSE, "WriteIVFHeaders: %s \n", av_log(avctx, AV_LOG_VERBOSE, "WriteIVFHeaders: %s \n",
print_threestate(av1_bs_param->WriteIVFHeaders)); print_threestate(av1_bs_param->WriteIVFHeaders));
av_log(avctx, AV_LOG_VERBOSE, "LowDelayBRC: %s\n", print_threestate(co3->LowDelayBRC));
} }
#endif #endif
@ -1090,6 +1091,9 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q)
q->extco3.MaxFrameSizeP = q->max_frame_size_p; q->extco3.MaxFrameSizeP = q->max_frame_size_p;
q->extco3.ScenarioInfo = q->scenario; q->extco3.ScenarioInfo = q->scenario;
} else if (avctx->codec_id == AV_CODEC_ID_AV1) {
if (q->low_delay_brc >= 0)
q->extco3.LowDelayBRC = q->low_delay_brc ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF;
} }
if (avctx->codec_id == AV_CODEC_ID_HEVC) { if (avctx->codec_id == AV_CODEC_ID_HEVC) {

1
libavcodec/qsvenc_av1.c
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@ -110,6 +110,7 @@ static const AVOption options[] = {
QSV_OPTION_ADAPTIVE_I QSV_OPTION_ADAPTIVE_I
QSV_OPTION_ADAPTIVE_B QSV_OPTION_ADAPTIVE_B
QSV_OPTION_EXTBRC QSV_OPTION_EXTBRC
QSV_OPTION_LOW_DELAY_BRC
{ "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" }, { "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
{ "unknown" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" }, { "unknown" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" },
{ "main" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AV1_MAIN }, INT_MIN, INT_MAX, VE, "profile" }, { "main" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AV1_MAIN }, INT_MIN, INT_MAX, VE, "profile" },