Exemplo n.º 1
0
        public async Task <IVideoMetadata> GetVideoMetadata(string fileName)
        {
            if (string.IsNullOrEmpty(fileName))
            {
                throw new ArgumentNullException("fileName");
            }

            IMediaInfo mediaInfo = await MediaInfoPromise;

            if (await mediaInfo.Open(fileName) == 0)
            {
                throw new IOException(string.Format("Failed to open media file: {0}", fileName));
            }

            VideoMetadata metadata  = null;
            Exception     exception = null;

            try
            {
                metadata = new VideoMetadata
                {
                    GeneralFormat                = await mediaInfo.GetStringValue(StreamKind.General, "Format"),
                    GeneralFormatProfile         = await mediaInfo.GetStringValue(StreamKind.General, "Format_Profile"),
                    GeneralCodecID               = await mediaInfo.GetStringValue(StreamKind.General, "CodecID"),
                    GeneralFileSize              = await mediaInfo.GetLongValue(StreamKind.General, "FileSize"),
                    GeneralDuration              = await mediaInfo.GetDurationValue(StreamKind.General, "Duration/String3"),
                    GeneralOverallBitRate        = await mediaInfo.GetIntegerValue(StreamKind.General, "BitRate"),
                    GeneralEncodedDate           = FixDateTime(await mediaInfo.GetDateValue(StreamKind.General, "Encoded_Date")),
                    GeneralTaggedDate            = FixDateTime(await mediaInfo.GetDateValue(StreamKind.General, "Tagged_Date")),
                    VideoStreamsCount            = await mediaInfo.GetIntegerValue(StreamKind.Video, "StreamCount"),
                    VideoFormat                  = await mediaInfo.GetStringValue(StreamKind.Video, "Format"),
                    VideoFormatInfo              = await mediaInfo.GetStringValue(StreamKind.Video, "Format/Info"),
                    VideoFormatProfile           = await mediaInfo.GetStringValue(StreamKind.Video, "Format_Profile"),
                    VideoFormatSettingsCABAC     = await mediaInfo.GetStringValue(StreamKind.Video, "Format_Settings_CABAC"),
                    VideoFormatSettingsRefFrames = await mediaInfo.GetIntegerValue(StreamKind.Video, "Format_Settings_RefFrames"),
                    VideoFormatSettingsGOP       = await mediaInfo.GetStringValue(StreamKind.Video, "Format_Settings_GOP"),
                    VideoCodecID                 = await mediaInfo.GetStringValue(StreamKind.Video, "CodecID"),
                    VideoCodecIDInfo             = await mediaInfo.GetStringValue(StreamKind.Video, "CodecID/Info"),
                    VideoDuration                = await mediaInfo.GetDurationValue(StreamKind.Video, "Duration/String3"),
                    VideoBitRateMode             = await mediaInfo.GetStringValue(StreamKind.Video, "BitRate_Mode"),
                    VideoBitRate                 = await mediaInfo.GetIntegerValue(StreamKind.Video, "BitRate"),
                    VideoBitRateMinimum          = await mediaInfo.GetIntegerValue(StreamKind.Video, "BitRate_Minimum"),
                    VideoBitRateMaximum          = await mediaInfo.GetIntegerValue(StreamKind.Video, "BitRate_Maximum"),
                    VideoBitRateNominal          = await mediaInfo.GetIntegerValue(StreamKind.Video, "BitRate_Nominal"),
                    VideoWidth              = await mediaInfo.GetIntegerValue(StreamKind.Video, "Width"),
                    VideoHeight             = await mediaInfo.GetIntegerValue(StreamKind.Video, "Height"),
                    VideoDisplayAspectRatio = await mediaInfo.GetStringValue(StreamKind.Video, "DisplayAspectRatio/String"),
                    VideoFrameRateMode      = await mediaInfo.GetStringValue(StreamKind.Video, "FrameRate_Mode"),
                    VideoFrameRate          = await mediaInfo.GetDoubleValue(StreamKind.Video, "FrameRate"),
                    VideoFrameRateMinimum   = await mediaInfo.GetDoubleValue(StreamKind.Video, "FrameRate_Minimum"),
                    VideoFrameRateMaximum   = await mediaInfo.GetDoubleValue(StreamKind.Video, "FrameRate_Maximum"),
                    VideoFrameRateOriginal  = await mediaInfo.GetDoubleValue(StreamKind.Video, "FrameRate_Original"),
                    VideoColorSpace         = await mediaInfo.GetStringValue(StreamKind.Video, "ColorSpace"),
                    VideoChromaSubsampling  = await mediaInfo.GetStringValue(StreamKind.Video, "Colorimetry"),
                    VideoBitDepth           = await mediaInfo.GetIntegerValue(StreamKind.Video, "Resolution"),
                    VideoScanType           = await mediaInfo.GetStringValue(StreamKind.Video, "ScanType"),
                    VideoBitsPixelByFrame   = await mediaInfo.GetDoubleValue(StreamKind.Video, "Bits-(Pixel*Frame)"),
                    VideoStreamSize         = await mediaInfo.GetLongValue(StreamKind.Video, "StreamSize"),
                    VideoTitle              = await mediaInfo.GetStringValue(StreamKind.Video, "Title"),
                    VideoLanguage           = await mediaInfo.GetStringValue(StreamKind.Video, "Language"),
                    VideoEncodedDate        = FixDateTime(await mediaInfo.GetDateValue(StreamKind.Video, "Encoded_Date")),
                    VideoTaggedDate         = FixDateTime(await mediaInfo.GetDateValue(StreamKind.Video, "Tagged_Date")),
                    VideoRotation           = await mediaInfo.GetDoubleValue(StreamKind.Video, "Rotation"),
                    AudioStreamsCount       = await mediaInfo.GetIntegerValue(StreamKind.Audio, "StreamCount"),
                    AudioFormat             = await mediaInfo.GetStringValue(StreamKind.Audio, "Format"),
                    AudioFormatInfo         = await mediaInfo.GetStringValue(StreamKind.Audio, "Format/Info"),
                    AudioFormatProfile      = await mediaInfo.GetStringValue(StreamKind.Audio, "Format_Profile"),
                    AudioCodecID            = await mediaInfo.GetStringValue(StreamKind.Audio, "CodecID"),
                    AudioDuration           = await mediaInfo.GetDurationValue(StreamKind.Audio, "Duration/String3"),
                    AudioBitRateMode        = await mediaInfo.GetStringValue(StreamKind.Audio, "BitRate_Mode"),
                    AudioBitRate            = await mediaInfo.GetIntegerValue(StreamKind.Audio, "BitRate"),
                    AudioBitRateMinimum     = await mediaInfo.GetIntegerValue(StreamKind.Audio, "BitRate_Minimum"),
                    AudioBitRateMaximum     = await mediaInfo.GetIntegerValue(StreamKind.Audio, "BitRate_Maximum"),
                    AudioBitRateNominal     = await mediaInfo.GetIntegerValue(StreamKind.Audio, "BitRate_Nominal"),
                    AudioChannels           = await mediaInfo.GetIntegerValue(StreamKind.Audio, "Channel(s)"),
                    AudioChannelPositions   = await mediaInfo.GetStringValue(StreamKind.Audio, "ChannelPositions"),
                    AudioSamplingRate       = await mediaInfo.GetIntegerValue(StreamKind.Audio, "SamplingRate"),
                    AudioCompressionMode    = await mediaInfo.GetStringValue(StreamKind.Audio, "Compression_Mode"),
                    AudioStreamSize         = await mediaInfo.GetLongValue(StreamKind.Audio, "StreamSize"),
                    AudioTitle              = await mediaInfo.GetStringValue(StreamKind.Audio, "Title"),
                    AudioLanguage           = await mediaInfo.GetStringValue(StreamKind.Audio, "Language"),
                    AudioEncodedDate        = FixDateTime(await mediaInfo.GetDateValue(StreamKind.Audio, "Encoded_Date")),
                    AudioTaggedDate         = FixDateTime(await mediaInfo.GetDateValue(StreamKind.Audio, "Tagged_Date"))
                };
            }
            catch (Exception e)
            {
                exception = e;
            }

            await mediaInfo.Close();

            if (exception != null)
            {
                throw new ApplicationException(string.Format("Failed to receive metadata for file {0}", fileName), exception);
            }

            return(metadata);
        }