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Code Issues Releases Activity

avcodec/nvenc: add support for unidirectional b-frames

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This commit is contained in:
Timo Rothenpieler 2024-03-31 21:26:15 +02:00
parent a270966118
commit 21b4708969
4 changed files with 18 additions and 1 deletions
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12
libavcodec/nvenc.c
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@ -613,6 +613,14 @@ static int nvenc_check_capabilities(AVCodecContext *avctx)
}
#endif
#ifdef NVENC_HAVE_UNIDIR_B
ret = nvenc_check_cap(avctx, NV_ENC_CAPS_SUPPORT_UNIDIRECTIONAL_B);
if(ctx->unidir_b && ret <= 0) {
av_log(avctx, AV_LOG_WARNING, "Unidirectional B-Frames not supported by the device\n");
return AVERROR(ENOSYS);
}
#endif
ctx->support_dyn_bitrate = nvenc_check_cap(avctx, NV_ENC_CAPS_SUPPORT_DYN_BITRATE_CHANGE);
return 0;
@ -1658,6 +1666,10 @@ FF_DISABLE_DEPRECATION_WARNINGS
FF_ENABLE_DEPRECATION_WARNINGS
}
#ifdef NVENC_HAVE_UNIDIR_B
ctx->init_encode_params.enableUniDirectionalB = ctx->unidir_b;
#endif
ctx->init_encode_params.enableEncodeAsync = 0;
ctx->init_encode_params.enablePTD = 1;

2
libavcodec/nvenc.h
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@ -89,6 +89,7 @@ typedef void ID3D11Device;
#define NVENC_HAVE_TEMPORAL_FILTER
#define NVENC_HAVE_LOOKAHEAD_LEVEL
#define NVENC_HAVE_UHQ_TUNING
#define NVENC_HAVE_UNIDIR_B
#endif
typedef struct NvencSurface
@ -276,6 +277,7 @@ typedef struct NvencContext
int rgb_mode;
int tf_level;
int lookahead_level;
int unidir_b;
} NvencContext;
int ff_nvenc_encode_init(AVCodecContext *avctx);

3
libavcodec/nvenc_hevc.c
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@ -213,6 +213,9 @@ static const AVOption options[] = {
{ "1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LOOKAHEAD_LEVEL_1 }, 0, 0, VE, .unit = "lookahead_level" },
{ "2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LOOKAHEAD_LEVEL_2 }, 0, 0, VE, .unit = "lookahead_level" },
{ "3", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LOOKAHEAD_LEVEL_3 }, 0, 0, VE, .unit = "lookahead_level" },
#endif
#ifdef NVENC_HAVE_UNIDIR_B
{ "unidir_b", "Enable use of unidirectional B-Frames.", OFFSET(unidir_b), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
#endif
{ NULL }
};

2
libavcodec/version.h
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@ -29,7 +29,7 @@
#include "version_major.h"
#define LIBAVCODEC_VERSION_MINOR 4
#define LIBAVCODEC_VERSION_MINOR 5
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \