avcodec/nvenc: add high bit depth encoding for HEVC
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 <ddesouza@nvidia.com> Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
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@ -514,7 +514,7 @@ static int nvenc_check_capabilities(AVCodecContext *avctx)
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}
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ret = nvenc_check_cap(avctx, NV_ENC_CAPS_SUPPORT_10BIT_ENCODE);
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if (IS_10BIT(ctx->data_pix_fmt) && ret <= 0) {
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if ((IS_10BIT(ctx->data_pix_fmt) || ctx->highbitdepth) && ret <= 0) {
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av_log(avctx, AV_LOG_WARNING, "10 bit encode not supported\n");
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return AVERROR(ENOSYS);
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}
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@ -1420,8 +1420,8 @@ static av_cold int nvenc_setup_hevc_config(AVCodecContext *avctx)
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break;
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}
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// force setting profile as main10 if input is 10 bit
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if (IS_10BIT(ctx->data_pix_fmt)) {
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// force setting profile as main10 if input is 10 bit or if it should be encoded as 10 bit
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if (IS_10BIT(ctx->data_pix_fmt) || ctx->highbitdepth) {
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cc->profileGUID = NV_ENC_HEVC_PROFILE_MAIN10_GUID;
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avctx->profile = AV_PROFILE_HEVC_MAIN_10;
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}
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@ -1435,8 +1435,8 @@ static av_cold int nvenc_setup_hevc_config(AVCodecContext *avctx)
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hevc->chromaFormatIDC = IS_YUV444(ctx->data_pix_fmt) ? 3 : 1;
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#ifdef NVENC_HAVE_NEW_BIT_DEPTH_API
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hevc->inputBitDepth = hevc->outputBitDepth =
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IS_10BIT(ctx->data_pix_fmt) ? NV_ENC_BIT_DEPTH_10 : NV_ENC_BIT_DEPTH_8;
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hevc->inputBitDepth = IS_10BIT(ctx->data_pix_fmt) ? NV_ENC_BIT_DEPTH_10 : NV_ENC_BIT_DEPTH_8;
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hevc->outputBitDepth = (IS_10BIT(ctx->data_pix_fmt) || ctx->highbitdepth) ? NV_ENC_BIT_DEPTH_10 : NV_ENC_BIT_DEPTH_8;
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#else
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hevc->pixelBitDepthMinus8 = IS_10BIT(ctx->data_pix_fmt) ? 2 : 0;
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#endif
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@ -183,6 +183,9 @@ static const AVOption options[] = {
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{ "fullres", "Two Pass encoding is enabled where first Pass is full resolution",
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0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_TWO_PASS_FULL_RESOLUTION }, 0, 0, VE, .unit = "multipass" },
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#endif
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#ifdef NVENC_HAVE_NEW_BIT_DEPTH_API
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{ "highbitdepth", "Enable 10 bit encode for 8 bit input",OFFSET(highbitdepth),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
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#endif
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#ifdef NVENC_HAVE_LDKFS
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{ "ldkfs", "Low delay key frame scale; Specifies the Scene Change frame size increase allowed in case of single frame VBV and CBR",
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OFFSET(ldkfs), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, UCHAR_MAX, VE },
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