FFMpegCore/FFMpegCore/FFMpeg/Enums/Enums.cs

namespace FFMpegCore.Enums
{
    public enum CodecType
    {
        Unknown = 0,
        Video = 1 << 1,
        Audio = 1 << 2,
        Subtitle = 1 << 3,
        Data = 1 << 4,
    }

    public static class VideoCodec
    {
        public static Codec LibX264 => FFMpeg.GetCodec("libx264");
        public static Codec LibX265 => FFMpeg.GetCodec("libx265");
        public static Codec LibVpx => FFMpeg.GetCodec("libvpx");
        public static Codec LibTheora => FFMpeg.GetCodec("libtheora");
        public static Codec MpegTs => FFMpeg.GetCodec("mpegts");
        public static Codec LibaomAv1 => FFMpeg.GetCodec("libaom-av1");

        public static class Image
        {
            public static Codec Png => FFMpeg.GetCodec("png");
            public static Codec Jpg => FFMpeg.GetCodec("mjpeg");
            public static Codec Bmp => FFMpeg.GetCodec("bmp");
            public static Codec Webp => FFMpeg.GetCodec("webp");

            public static Codec GetByExtension(string path)
            {
                var ext = Path.GetExtension(path);
                switch (ext)
                {
                    case FileExtension.Image.Png:
                        return Png;
                    case FileExtension.Image.Jpg:
                        return Jpg;
                    case FileExtension.Image.Bmp:
                        return Bmp;
                    case FileExtension.Image.Webp:
                        return Webp;
                    default: throw new NotSupportedException($"Unsupported image extension: {ext}");
                }
            }
        }
    }

    public static class AudioCodec
    {
        public static Codec Aac => FFMpeg.GetCodec("aac");
        public static Codec LibVorbis => FFMpeg.GetCodec("libvorbis");
        public static Codec LibFdk_Aac => FFMpeg.GetCodec("libfdk_aac");
        public static Codec Ac3 => FFMpeg.GetCodec("ac3");
        public static Codec Eac3 => FFMpeg.GetCodec("eac3");
        public static Codec LibMp3Lame => FFMpeg.GetCodec("libmp3lame");
        public static Codec Copy => new Codec("copy", CodecType.Audio);

    }

    public static class VideoType
    {
        public static ContainerFormat MpegTs => FFMpeg.GetContainerFormat("mpegts");
        public static ContainerFormat Ts => FFMpeg.GetContainerFormat("mpegts");
        public static ContainerFormat Mp4 => FFMpeg.GetContainerFormat("mp4");
        public static ContainerFormat Mov => FFMpeg.GetContainerFormat("mov");
        public static ContainerFormat Avi => FFMpeg.GetContainerFormat("avi");
        public static ContainerFormat Ogv => FFMpeg.GetContainerFormat("ogv");
        public static ContainerFormat WebM => FFMpeg.GetContainerFormat("webm");
    }

    public enum Filter
    {
        H264_Mp4ToAnnexB,
        Aac_AdtstoAsc
    }

    /// <summary>
    /// https://ffmpeg.org/ffmpeg.html#Stream-specifiers-1
    /// ’v’ or ’V’ for video, ’a’ for audio, ’s’ for subtitle, ’d’ for data, and ’t’ for attachments
    /// ’V’ only matches video streams which are not attached pictures, video thumbnails or cover arts.
    /// Both for audio + video
    /// All for all types
    /// </summary>
    public enum Channel
    {
        Audio,
        Video,
        Both,
        VideoNoAttachedPic,
        Subtitle,
        Data,
        Attachments,
        All
    }
    internal static class ChannelMethods
    {
        /// <summary>
        /// <see cref="Channel.Both"/> is left as empty because it cannot be in a single stream specifier
        /// </summary>
        /// <returns>The stream_type used in stream specifiers</returns>
        public static string StreamType(this Channel channel)
        {
            return channel switch
            {
                Channel.Audio => ":a",
                Channel.Video => ":v",
                Channel.VideoNoAttachedPic => ":V",
                Channel.Subtitle => ":s",
                Channel.Data => ":d",
                Channel.Attachments => ":t",
                _ => string.Empty
            };
        }
    }
}