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avcodec/nvenc: add support for specifying entropy coding mode 

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
This commit is contained in:
Timo Rothenpieler 2017-08-30 21:06:25 +02:00
parent 78a7af823b
commit a0b69e2b0a
4 changed files with 18 additions and 1 deletions
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9
libavcodec/nvenc.c
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@ -317,6 +317,12 @@ static int nvenc_check_capabilities(AVCodecContext *avctx)
return AVERROR(ENOSYS);
}
ret = nvenc_check_cap(avctx, NV_ENC_CAPS_SUPPORT_CABAC);
if (ctx->coder == NV_ENC_H264_ENTROPY_CODING_MODE_CABAC && ret <= 0) {
av_log(avctx, AV_LOG_VERBOSE, "CABAC entropy coding not supported\n");
return AVERROR(ENOSYS);
}
return 0;
}
@ -916,6 +922,9 @@ static av_cold int nvenc_setup_h264_config(AVCodecContext *avctx)
h264->level = ctx->level;
if (ctx->coder >= 0)
h264->entropyCodingMode = ctx->coder;
return 0;
}

1
libavcodec/nvenc.h
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@ -162,6 +162,7 @@ typedef struct NvencContext
int init_qp_i;
int cqp;
int weighted_pred;
int coder;
} NvencContext;
int ff_nvenc_encode_init(AVCodecContext *avctx);

7
libavcodec/nvenc_h264.c
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@ -119,6 +119,13 @@ static const AVOption options[] = {
OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
{ "weighted_pred","Set 1 to enable weighted prediction",
OFFSET(weighted_pred),AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
{ "coder", "Coder type", OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 },-1, 2, VE, "coder" },
{ "default", "", 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, 0, 0, VE, "coder" },
{ "auto", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_ENTROPY_CODING_MODE_AUTOSELECT }, 0, 0, VE, "coder" },
{ "cabac", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_ENTROPY_CODING_MODE_CABAC }, 0, 0, VE, "coder" },
{ "cavlc", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_ENTROPY_CODING_MODE_CAVLC }, 0, 0, VE, "coder" },
{ "ac", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_ENTROPY_CODING_MODE_CABAC }, 0, 0, VE, "coder" },
{ "vlc", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_ENTROPY_CODING_MODE_CAVLC }, 0, 0, VE, "coder" },
{ NULL }
};

2
libavcodec/version.h
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@ -29,7 +29,7 @@
#define LIBAVCODEC_VERSION_MAJOR 57
#define LIBAVCODEC_VERSION_MINOR 104
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_MICRO 101
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \