diff options
| author | Wenbin Chen <wenbin.chen@intel.com> | 2022-12-26 14:02:00 +0800 |
|---|---|---|
| committer | Haihao Xiang <haihao.xiang@intel.com> | 2023-01-09 13:56:03 +0800 |
| commit | c8e73558fe0181a0b3e611f486bb8bc308af24b4 (patch) | |
| tree | cbf7c7db19a288614187c35c677a6fe16f4e6b4c | |
| parent | a598be44dff810b41c07547cc897b60b8fed9f9e (diff) | |
libavcodec/qsvenc_av1: Add low_delay_brc support to av1_qsv encoder
Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
| -rw-r--r-- | doc/encoders.texi | 5 | ||||
| -rw-r--r-- | libavcodec/qsvenc.c | 4 | ||||
| -rw-r--r-- | libavcodec/qsvenc_av1.c | 1 |
3 files changed, 10 insertions, 0 deletions
diff --git a/doc/encoders.texi b/doc/encoders.texi index b8051cda3f..543b5e26a9 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -3850,6 +3850,11 @@ Extended bitrate control. @item @var{look_ahead_depth} 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 @section snow diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c index 514a1e8148..f5c6a164bb 100644 --- a/libavcodec/qsvenc.c +++ b/libavcodec/qsvenc.c @@ -537,6 +537,7 @@ static void dump_video_av1_param(AVCodecContext *avctx, QSVEncContext *q, av_log(avctx, AV_LOG_VERBOSE, "WriteIVFHeaders: %s \n", print_threestate(av1_bs_param->WriteIVFHeaders)); + av_log(avctx, AV_LOG_VERBOSE, "LowDelayBRC: %s\n", print_threestate(co3->LowDelayBRC)); } #endif @@ -1090,6 +1091,9 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q) q->extco3.MaxFrameSizeP = q->max_frame_size_p; 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) { diff --git a/libavcodec/qsvenc_av1.c b/libavcodec/qsvenc_av1.c index bb9ad16927..1e7801fefe 100644 --- a/libavcodec/qsvenc_av1.c +++ b/libavcodec/qsvenc_av1.c @@ -110,6 +110,7 @@ static const AVOption options[] = { QSV_OPTION_ADAPTIVE_I QSV_OPTION_ADAPTIVE_B 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" }, { "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" }, |