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libavcodec/qsvenc: Add adaptive_i/b to hevc_qsv

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Add adaptive_i/b feature to hevc_qsv. Adaptive_i allows changing of
frame type from P and B to I. Adaptive_b allows changing of frame type
frome B to P.

Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
This commit is contained in:
Wenbin Chen 2022-08-17 15:07:19 +08:00 committed by Haihao Xiang
parent f23e3ce858
commit ae7d19680b
3 changed files with 13 additions and 5 deletions
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7
doc/encoders.texi
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@ -3543,6 +3543,13 @@ Setting this flag turns on or off LowDelayBRC feautre in qsv plugin, which provi
more accurate bitrate control to minimize the variance of bitstream size frame
by frame. Value: -1-default 0-off 1-on
@item @var{adaptive_i}
This flag controls insertion of I frames by the QSV encoder. Turn ON this flag
to allow changing of frame type from P and B to I.
@item @var{adaptive_b}
This flag controls changing of frame type from B to P.
@item @var{p_strategy}
Enable P-pyramid: 0-default 1-simple 2-pyramid(bf need to be set to 0).

9
libavcodec/qsvenc.c
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@ -816,11 +816,6 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q)
q->extco2.LookAheadDS = q->look_ahead_downsampling;
q->extco2.RepeatPPS = q->repeat_pps ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF;
if (q->adaptive_i >= 0)
q->extco2.AdaptiveI = q->adaptive_i ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF;
if (q->adaptive_b >= 0)
q->extco2.AdaptiveB = q->adaptive_b ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF;
}
if (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_HEVC) {
@ -840,6 +835,10 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q)
if (q->b_strategy >= 0)
q->extco2.BRefType = q->b_strategy ? MFX_B_REF_PYRAMID : MFX_B_REF_OFF;
if (q->adaptive_i >= 0)
q->extco2.AdaptiveI = q->adaptive_i ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF;
if (q->adaptive_b >= 0)
q->extco2.AdaptiveB = q->adaptive_b ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF;
if ((avctx->qmin >= 0 && avctx->qmax >= 0 && avctx->qmin > avctx->qmax) ||
(q->max_qp_i >= 0 && q->min_qp_i >= 0 && q->min_qp_i > q->max_qp_i) ||
(q->max_qp_p >= 0 && q->min_qp_p >= 0 && q->min_qp_p > q->max_qp_p) ||

2
libavcodec/qsvenc_hevc.c
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@ -233,6 +233,8 @@ static const AVOption options[] = {
QSV_OPTION_DBLK_IDC
QSV_OPTION_LOW_DELAY_BRC
QSV_OPTION_MAX_MIN_QP
QSV_OPTION_ADAPTIVE_I
QSV_OPTION_ADAPTIVE_B
{ "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, -1, INT_MAX, VE, "idr_interval" },
{ "begin_only", "Output an IDR-frame only at the beginning of the stream", 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, 0, 0, VE, "idr_interval" },