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Code Issues Releases Activity

avcodec/nvenc: add single slice intra refresh support

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Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
This commit is contained in:
Limin Wang 2021-09-02 18:38:57 +08:00 committed by Timo Rothenpieler
parent e6bd5171ac
commit 3756525a59
4 changed files with 30 additions and 1 deletions
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25
libavcodec/nvenc.c
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@ -529,8 +529,21 @@ static int nvenc_check_capabilities(AVCodecContext *avctx)
}
#endif
#ifdef NVENC_HAVE_SINGLE_SLICE_INTRA_REFRESH
ret = nvenc_check_cap(avctx, NV_ENC_CAPS_SINGLE_SLICE_INTRA_REFRESH);
if(ctx->single_slice_intra_refresh && ret <= 0) {
av_log(avctx, AV_LOG_WARNING, "Single slice intra refresh not supported by the device\n");
return AVERROR(ENOSYS);
}
#else
if(ctx->single_slice_intra_refresh) {
av_log(avctx, AV_LOG_WARNING, "Single slice intra refresh needs SDK 11.1 at build time\n");
return AVERROR(ENOSYS);
}
#endif
ret = nvenc_check_cap(avctx, NV_ENC_CAPS_SUPPORT_INTRA_REFRESH);
if(ctx->intra_refresh && ret <= 0) {
if((ctx->intra_refresh || ctx->single_slice_intra_refresh) && ret <= 0) {
av_log(avctx, AV_LOG_WARNING, "Intra refresh not supported by the device\n");
return AVERROR(ENOSYS);
}
@ -1086,6 +1099,9 @@ static av_cold int nvenc_setup_h264_config(AVCodecContext *avctx)
h264->enableIntraRefresh = 1;
h264->intraRefreshPeriod = avctx->gop_size;
h264->intraRefreshCnt = avctx->gop_size - 1;
#ifdef NVENC_HAVE_SINGLE_SLICE_INTRA_REFRESH
h264->singleSliceIntraRefresh = ctx->single_slice_intra_refresh;
#endif
}
h264->disableSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0;
@ -1192,6 +1208,9 @@ static av_cold int nvenc_setup_hevc_config(AVCodecContext *avctx)
hevc->enableIntraRefresh = 1;
hevc->intraRefreshPeriod = avctx->gop_size;
hevc->intraRefreshCnt = avctx->gop_size - 1;
#ifdef NVENC_HAVE_SINGLE_SLICE_INTRA_REFRESH
hevc->singleSliceIntraRefresh = ctx->single_slice_intra_refresh;
#endif
}
hevc->disableSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0;
@ -1391,6 +1410,10 @@ static av_cold int nvenc_setup_encoder(AVCodecContext *avctx)
ctx->encode_config.gopLength = 1;
}
/* force to enable intra refresh */
if(ctx->single_slice_intra_refresh)
ctx->intra_refresh = 1;
if (ctx->intra_refresh)
ctx->encode_config.gopLength = NVENC_INFINITE_GOPLENGTH;

2
libavcodec/nvenc.h
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@ -73,6 +73,7 @@ typedef void ID3D11Device;
// SDK 11.1 compile time feature checks
#if NVENCAPI_CHECK_VERSION(11, 1)
#define NVENC_HAVE_QP_CHROMA_OFFSETS
#define NVENC_HAVE_SINGLE_SLICE_INTRA_REFRESH
#endif
typedef struct NvencSurface
@ -231,6 +232,7 @@ typedef struct NvencContext
int ldkfs;
int extra_sei;
int intra_refresh;
int single_slice_intra_refresh;
} NvencContext;
int ff_nvenc_encode_init(AVCodecContext *avctx);

2
libavcodec/nvenc_h264.c
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@ -190,6 +190,8 @@ static const AVOption options[] = {
OFFSET(extra_sei), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
{ "intra-refresh","Use Periodic Intra Refresh instead of IDR frames",
OFFSET(intra_refresh),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "single-slice-intra-refresh", "Use single slice intra refresh",
OFFSET(single_slice_intra_refresh), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ NULL }
};

2
libavcodec/nvenc_hevc.c
View File

@ -171,6 +171,8 @@ static const AVOption options[] = {
OFFSET(extra_sei), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
{ "intra-refresh","Use Periodic Intra Refresh instead of IDR frames",
OFFSET(intra_refresh),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "single-slice-intra-refresh", "Use single slice intra refresh",
OFFSET(single_slice_intra_refresh), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ NULL }
};