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Thread-Topic: [FFmpeg-devel] [PATCH] cuda: add support for yuv420p10
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Subject: Re: [FFmpeg-devel] [PATCH] cuda: add support for yuv420p10
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From: Diego de Souza via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
Reply-To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Cc: Diego de Souza <ddesouza@nvidia.com>
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Hi Timo and Lynne,
The encoder does not accept yuv420p10 and yuv422p10 pixel formats. Only the semi planar versions of them: P010 and P210.
Best regards,
Diego de Souza
Sr. Video Coding DevTech
NVIDIA<http://www.nvidia.com/>
On 25.04.25, 19:17, "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org> wrote:
External email: Use caution opening links or attachments
On 25.04.2025 13:02, Lynne wrote:
> This patch adds support for accepting yuv420p10 in encoders and cuda.
> ---
> libavcodec/nvenc.c | 2 ++
> libavutil/hwcontext_cuda.c | 7 +++++--
> 2 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
> index 41a4dc55f4..ccf8cc6d39 100644
> --- a/libavcodec/nvenc.c
> +++ b/libavcodec/nvenc.c
> @@ -57,6 +57,7 @@
>
> const enum AVPixelFormat ff_nvenc_pix_fmts[] = {
> AV_PIX_FMT_YUV420P,
> + AV_PIX_FMT_YUV420P10,
> AV_PIX_FMT_NV12,
> AV_PIX_FMT_P010,
> AV_PIX_FMT_YUV444P,
> @@ -99,6 +100,7 @@ const AVCodecHWConfigInternal *const ff_nvenc_hw_configs[] = {
> pix_fmt == AV_PIX_FMT_YUV444P16 || \
> pix_fmt == AV_PIX_FMT_X2RGB10 || \
> pix_fmt == AV_PIX_FMT_X2BGR10 || \
> + pix_fmt == AV_PIX_FMT_YUV420P10 || \
> pix_fmt == AV_PIX_FMT_GBRP16)
>
> #define IS_RGB(pix_fmt) (pix_fmt == AV_PIX_FMT_0RGB32 || \
Appears to be missing the entry in nvenc_map_buffer_format().
> diff --git a/libavutil/hwcontext_cuda.c b/libavutil/hwcontext_cuda.c
> index 5721612225..495d3687c2 100644
> --- a/libavutil/hwcontext_cuda.c
> +++ b/libavutil/hwcontext_cuda.c
> @@ -44,6 +44,7 @@ static const enum AVPixelFormat supported_formats[] = {
> AV_PIX_FMT_NV12,
> AV_PIX_FMT_NV16,
> AV_PIX_FMT_YUV420P,
> + AV_PIX_FMT_YUV420P10,
> AV_PIX_FMT_YUVA420P,
> AV_PIX_FMT_YUV444P,
> AV_PIX_FMT_P010,
> @@ -162,7 +163,8 @@ static int cuda_frames_init(AVHWFramesContext *ctx)
> // YUV420P is a special case.
> // Since nvenc expects the U/V planes to have half the linesize of the Y plane
> // alignment has to be doubled to ensure the U/V planes still end up aligned.
> - if (ctx->sw_format == AV_PIX_FMT_YUV420P)
> + if (ctx->sw_format == AV_PIX_FMT_YUV420P ||
> + ctx->sw_format == AV_PIX_FMT_YUV420P10)
> priv->tex_alignment *= 2;
>
> av_pix_fmt_get_chroma_sub_sample(ctx->sw_format, &priv->shift_width, &priv->shift_height);
> @@ -197,7 +199,8 @@ static int cuda_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
>
> // YUV420P is a special case.
> // Nvenc expects the U/V planes in swapped order from how ffmpeg expects them, also chroma is half-aligned
> - if (ctx->sw_format == AV_PIX_FMT_YUV420P) {
> + if (ctx->sw_format == AV_PIX_FMT_YUV420P ||
> + ctx->sw_format == AV_PIX_FMT_YUV420P10) {
> frame->linesize[1] = frame->linesize[2] = frame->linesize[0] / 2;
> frame->data[2] = frame->data[1];
> frame->data[1] = frame->data[2] + frame->linesize[2] * (ctx->height / 2);
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