/// <summary>
        /// Creates a new <see cref="DecodeContext"/> instance.
        /// </summary>
        /// <param name="url">The URL of the video source. If a file system path is provided, make sure it is an absolute path.</param>
        /// <param name="decodingOptions">Decoding options.</param>
        internal DecodeContext([NotNull] string url, [NotNull] DecodingOptions decodingOptions)
        {
            _decodingOptions = decodingOptions;

            // 1. Open a format context.
            var formatContext = ffmpeg.avformat_alloc_context();

            FFmpegHelper.Verify(ffmpeg.avformat_open_input(&formatContext, url, null, null), Dispose);
            _formatContext = formatContext;

            // 2. Try to read stream information (codec, duration, etc.).
            FFmpegHelper.Verify(ffmpeg.avformat_find_stream_info(formatContext, null), Dispose);

            // The rest are initialized lazily. See LazyInitialize().
        }
Exemplo n.º 2
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 /// <summary>
 /// Loads a video from a URL using specified decoding options.
 /// </summary>
 /// <param name="url">The URL of the video source.</param>
 /// <param name="decodingOptions">The decoding options to use.</param>
 /// <returns>Loaded video.</returns>
 public static Video LoadFromUrl([NotNull] string url, [NotNull] DecodingOptions decodingOptions)
 {
     return(new Video(url, decodingOptions));
 }
Exemplo n.º 3
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        /// <summary>
        /// Loads a video from file system using specified decoding options.
        /// </summary>
        /// <param name="path">The path of the video file.</param>
        /// <param name="decodingOptions">The decoding options to use.</param>
        /// <returns>Loaded video.</returns>
        public static Video LoadFromFile([NotNull] string path, [NotNull] DecodingOptions decodingOptions)
        {
            var fullPath = Path.GetFullPath(path);

            return(LoadFromUrl(fullPath, decodingOptions));
        }