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-rw-r--r--libavcodec/nvenc.c10
-rw-r--r--libavcodec/nvenc.h1
-rw-r--r--libavcodec/nvenc_h264.c2
-rw-r--r--libavcodec/nvenc_hevc.c2
4 files changed, 10 insertions, 5 deletions
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index 316e4a3679..158e304a0c 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -949,9 +949,9 @@ static av_cold int nvenc_setup_h264_config(AVCodecContext *avctx)
h264->repeatSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1;
h264->outputAUD = ctx->aud;
- if (avctx->refs >= 0) {
+ if (ctx->dpb_size >= 0) {
/* 0 means "let the hardware decide" */
- h264->maxNumRefFrames = avctx->refs;
+ h264->maxNumRefFrames = ctx->dpb_size;
}
if (avctx->gop_size >= 0) {
h264->idrPeriod = cc->gopLength;
@@ -1041,9 +1041,9 @@ static av_cold int nvenc_setup_hevc_config(AVCodecContext *avctx)
hevc->repeatSPSPPS = (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1;
hevc->outputAUD = ctx->aud;
- if (avctx->refs >= 0) {
+ if (ctx->dpb_size >= 0) {
/* 0 means "let the hardware decide" */
- hevc->maxNumRefFramesInDPB = avctx->refs;
+ hevc->maxNumRefFramesInDPB = ctx->dpb_size;
}
if (avctx->gop_size >= 0) {
hevc->idrPeriod = cc->gopLength;
@@ -1175,7 +1175,7 @@ static av_cold int nvenc_setup_encoder(AVCodecContext *avctx)
if (ctx->bluray_compat) {
ctx->aud = 1;
- avctx->refs = FFMIN(FFMAX(avctx->refs, 0), 6);
+ ctx->dpb_size = FFMIN(FFMAX(avctx->refs, 0), 6);
avctx->max_b_frames = FFMIN(avctx->max_b_frames, 3);
switch (avctx->codec->id) {
case AV_CODEC_ID_H264:
diff --git a/libavcodec/nvenc.h b/libavcodec/nvenc.h
index ddd6168409..892a001f69 100644
--- a/libavcodec/nvenc.h
+++ b/libavcodec/nvenc.h
@@ -192,6 +192,7 @@ typedef struct NvencContext
int coder;
int b_ref_mode;
int a53_cc;
+ int dpb_size;
} NvencContext;
int ff_nvenc_encode_init(AVCodecContext *avctx);
diff --git a/libavcodec/nvenc_h264.c b/libavcodec/nvenc_h264.c
index a6623f5f35..d5c7370aaa 100644
--- a/libavcodec/nvenc_h264.c
+++ b/libavcodec/nvenc_h264.c
@@ -138,6 +138,8 @@ static const AVOption options[] = {
{ "middle", "", 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, VE, "b_ref_mode" },
#endif
{ "a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
+ { "dpb_size", "Specifies the DPB size used for encoding (0 means automatic)",
+ OFFSET(dpb_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
{ NULL }
};
diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c
index d567d960ba..c668b97f86 100644
--- a/libavcodec/nvenc_hevc.c
+++ b/libavcodec/nvenc_hevc.c
@@ -127,6 +127,8 @@ static const AVOption options[] = {
{ "each", "", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, VE, "b_ref_mode" },
{ "middle", "", 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, VE, "b_ref_mode" },
#endif
+ { "dpb_size", "Specifies the DPB size used for encoding (0 means automatic)",
+ OFFSET(dpb_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
{ NULL }
};