Re: [FFmpeg-devel] [PATCH v2 3/3] avfilter/scale_cuda: Add support for 4:2:2 chroma subsampling

[Diego de Souza via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

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From: Diego de Souza <ddesouza@nvidia.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH v2 3/3] avfilter/scale_cuda: Add support for 4:2:2 chroma subsampling
Date: Tue, 8 Jul 2025 11:19:45 +0000
Message-ID: <MW4PR12MB7190D8A0E1F8D0AFBF96EB7ABF4EA@MW4PR12MB7190.namprd12.prod.outlook.com>

Hi Andreas,

Do you mean something like this?

struct format_entry {
    enum AVPixelFormat format;
    char name[16];
};

static const struct format_entry supported_formats[] = {
    {AV_PIX_FMT_YUV420P,  "planar8"},
    {AV_PIX_FMT_YUV422P,  "planar8"},
    {AV_PIX_FMT_YUV444P,  "planar8"},
    {AV_PIX_FMT_YUV420P10,"planar10"},
    {AV_PIX_FMT_YUV422P10,"planar10"},
    {AV_PIX_FMT_YUV444P10,"planar10"},
    {AV_PIX_FMT_YUV444P16,"planar16"},
    {AV_PIX_FMT_NV12,     "semiplanar8"},
    {AV_PIX_FMT_NV16,     "semiplanar8"},
    {AV_PIX_FMT_P010,     "semiplanar10"},
    {AV_PIX_FMT_P210,     "semiplanar10"},
    {AV_PIX_FMT_P016,     "semiplanar16"},
    {AV_PIX_FMT_P216,     "semiplanar16"},
    {AV_PIX_FMT_0RGB32,   "bgr0"},
    {AV_PIX_FMT_0BGR32,   "rgb0"},
    {AV_PIX_FMT_RGB32,    "bgra"},
    {AV_PIX_FMT_BGR32,    "rgba"},
};

Best regards,

Diego de Souza
Sr. Video Coding DevTech
NVIDIA<http://www.nvidia.com/>
On 07.07.25, 12:24, "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org> wrote:

External email: Use caution opening links or attachments


Diego Felix de Souza via ffmpeg-devel:
> +struct format_entry {
> +    enum AVPixelFormat format;
> +    const char *name;
> +};
> +
> +static const struct format_entry supported_formats[] = {
> +    {AV_PIX_FMT_YUV420P,  "planar8"},
> +    {AV_PIX_FMT_YUV422P,  "planar8"},
> +    {AV_PIX_FMT_YUV444P,  "planar8"},
> +    {AV_PIX_FMT_YUV420P10,"planar10"},
> +    {AV_PIX_FMT_YUV422P10,"planar10"},
> +    {AV_PIX_FMT_YUV444P10,"planar10"},
> +    {AV_PIX_FMT_YUV444P16,"planar16"},
> +    {AV_PIX_FMT_NV12,     "semiplanar8"},
> +    {AV_PIX_FMT_NV16,     "semiplanar8"},
> +    {AV_PIX_FMT_P010,     "semiplanar10"},
> +    {AV_PIX_FMT_P210,     "semiplanar10"},
> +    {AV_PIX_FMT_P016,     "semiplanar16"},
> +    {AV_PIX_FMT_P216,     "semiplanar16"},
> +    {AV_PIX_FMT_0RGB32,   "bgr0"},
> +    {AV_PIX_FMT_0BGR32,   "rgb0"},
> +    {AV_PIX_FMT_RGB32,    "bgra"},
> +    {AV_PIX_FMT_BGR32,    "rgba"},
>  };

Please avoid reloactions here.

- Andreas

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