On 19.04.2024 10:38, Diego Felix de Souza via ffmpeg-devel wrote:
From: Diego Felix de Souza <ddeso...@nvidia.com>Adding 10-bit encoding support for HEVC if the input is 8-bit. In case of 8-bit input content, NVENC performs an internal CUDA 8 to 10-bit conversion of the input prior to encoding. Currently, only AV1 supports encoding 8-bit content as 10-bit. Signed-off-by: Diego Felix de Souza <ddeso...@nvidia.com> --- libavcodec/nvenc.c | 10 +++++----- libavcodec/nvenc_hevc.c | 3 +++ 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c index 794174a53f..e48224347d 100644 --- a/libavcodec/nvenc.c +++ b/libavcodec/nvenc.c @@ -514,7 +514,7 @@ static int nvenc_check_capabilities(AVCodecContext *avctx) } ret = nvenc_check_cap(avctx, NV_ENC_CAPS_SUPPORT_10BIT_ENCODE); - if (IS_10BIT(ctx->data_pix_fmt) && ret <= 0) { + if ((IS_10BIT(ctx->data_pix_fmt) || ctx->highbitdepth) && ret <= 0) { av_log(avctx, AV_LOG_WARNING, "10 bit encode not supported\n"); return AVERROR(ENOSYS); } @@ -1420,8 +1420,8 @@ static av_cold int nvenc_setup_hevc_config(AVCodecContext *avctx) break; } - // force setting profile as main10 if input is 10 bit - if (IS_10BIT(ctx->data_pix_fmt)) { + // force setting profile as main10 if input is 10 bit or if it should be encoded as 10 bit + if (IS_10BIT(ctx->data_pix_fmt) || ctx->highbitdepth) { cc->profileGUID = NV_ENC_HEVC_PROFILE_MAIN10_GUID; avctx->profile = AV_PROFILE_HEVC_MAIN_10; } @@ -1435,8 +1435,8 @@ static av_cold int nvenc_setup_hevc_config(AVCodecContext *avctx) hevc->chromaFormatIDC = IS_YUV444(ctx->data_pix_fmt) ? 3 : 1; #ifdef NVENC_HAVE_NEW_BIT_DEPTH_API - hevc->inputBitDepth = hevc->outputBitDepth = - IS_10BIT(ctx->data_pix_fmt) ? NV_ENC_BIT_DEPTH_10 : NV_ENC_BIT_DEPTH_8; + hevc->inputBitDepth = IS_10BIT(ctx->data_pix_fmt) ? NV_ENC_BIT_DEPTH_10 : NV_ENC_BIT_DEPTH_8; + hevc->outputBitDepth = (IS_10BIT(ctx->data_pix_fmt) || ctx->highbitdepth) ? NV_ENC_BIT_DEPTH_10 : NV_ENC_BIT_DEPTH_8; #else hevc->pixelBitDepthMinus8 = IS_10BIT(ctx->data_pix_fmt) ? 2 : 0; #endif diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c index b949cb1bd7..d54e5f2512 100644 --- a/libavcodec/nvenc_hevc.c +++ b/libavcodec/nvenc_hevc.c @@ -183,6 +183,9 @@ static const AVOption options[] = { { "fullres", "Two Pass encoding is enabled where first Pass is full resolution", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_TWO_PASS_FULL_RESOLUTION }, 0, 0, VE, .unit = "multipass" }, #endif +#ifdef NVENC_HAVE_NEW_BIT_DEPTH_API + { "highbitdepth", "Enable 10 bit encode for 8 bit input",OFFSET(highbitdepth),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, +#endif #ifdef NVENC_HAVE_LDKFS { "ldkfs", "Low delay key frame scale; Specifies the Scene Change frame size increase allowed in case of single frame VBV and CBR", OFFSET(ldkfs), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, UCHAR_MAX, VE }, -- 2.34.1
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