WinBRCMaxAvgKbps is to specify maximum average bitrate over a
sliding window with size of WinBRCSize
WinBRCMaxAvgKbps will be ignored in CBR mode and equal to TargetKbps.
Signed-off-by: Zhong Li <zhong...@intel.com>
---
libavcodec/qsvenc.c | 7 +++++++
libavcodec/qsvenc.h | 3 +++
libavcodec/qsvenc_h264.c | 5 +++++
3 files changed, 15 insertions(+)
diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c
index 2dd41d7..9c2f2a7 100644
--- a/libavcodec/qsvenc.c
+++ b/libavcodec/qsvenc.c
@@ -263,6 +263,11 @@ static void dump_video_param(AVCodecContext *avctx,
QSVEncContext *q,
#endif
#endif
+#if QSV_HAVE_CO3
+ av_log(avctx, AV_LOG_VERBOSE,"WinBRCMaxAvgKbps: %"PRIu32"; WinBRCSize:
%"PRId32"\n",
+ co3->WinBRCMaxAvgKbps, co3->WinBRCSize);
+#endif
+
if (avctx->codec_id == AV_CODEC_ID_H264) {
av_log(avctx, AV_LOG_VERBOSE, "Entropy coding: %s;
MaxDecFrameBuffering: %"PRIu16"\n",
co->CAVLC == MFX_CODINGOPTION_ON ? "CAVLC" : "CABAC",
co->MaxDecFrameBuffering);
@@ -723,6 +728,8 @@ FF_ENABLE_DEPRECATION_WARNINGS
#if QSV_HAVE_CO3
q->extco3.Header.BufferId = MFX_EXTBUFF_CODING_OPTION3;
q->extco3.Header.BufferSz = sizeof(q->extco3);
+ q->extco3.WinBRCMaxAvgKbps = q->win_brc_max_avg_kbps;
+ q->extco3.WinBRCSize = q->win_brc_size;
q->extparam_internal[q->nb_extparam_internal++] = (mfxExtBuffer
*)&q->extco3;
#endif
}
diff --git a/libavcodec/qsvenc.h b/libavcodec/qsvenc.h
index 075c86b..1f9769e 100644
--- a/libavcodec/qsvenc.h
+++ b/libavcodec/qsvenc.h
@@ -168,6 +168,9 @@ typedef struct QSVEncContext {
int repeat_pps;
int num_mb_per_slice;
+ int win_brc_max_avg_kbps;
+ int win_brc_size;
+
int a53_cc;
#if QSV_HAVE_MF
diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c
index 693a9e3..d943ede 100644
--- a/libavcodec/qsvenc_h264.c
+++ b/libavcodec/qsvenc_h264.c
@@ -158,6 +158,11 @@ static const AVOption options[] = {
{ "repeat_pps", "repeat pps for every frame", OFFSET(qsv.repeat_pps),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "num_mb_per_slice","Suggested macroblocks numbers of each slice",
OFFSET(qsv.num_mb_per_slice), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
+#if QSV_HAVE_CO3
+ { "win_max_rate", "maximum average bitrate (in kbps) over a sliding
window", OFFSET(qsv.win_brc_max_avg_kbps), AV_OPT_TYPE_INT, { .i64 = 0 }, 0,
INT_MAX, VE },
+ { "win_brc_size", "sliding window size of win_max_rate",
OFFSET(qsv.win_brc_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
+#endif
+
{ NULL },
};
--
2.7.4
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