private void PrepareVideo()
        {
            // Stream Description
            Dictionary <MediaStreamAttributeKeys, string> streamAttributes =
                new Dictionary <MediaStreamAttributeKeys, string>();

            // Select the same encoding and dimensions as the video capture
            streamAttributes[MediaStreamAttributeKeys.VideoFourCC] = "H264";
            streamAttributes[MediaStreamAttributeKeys.Height]      = _frameHeight.ToString();
            streamAttributes[MediaStreamAttributeKeys.Width]       = _frameWidth.ToString();

            MediaStreamDescription msd =
                new MediaStreamDescription(MediaStreamType.Video, streamAttributes);

            _videoDesc = msd;
        }
Ejemplo n.º 2
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        /// <summary>
        /// Initialises the data structures to pass data to the media pipeline via the MediaStreamSource.
        /// </summary>
        protected override void OpenMediaAsync()
        {
            // General properties

            _frameBufferSize = (int)_frameSize.Width * (int)_frameSize.Height * 4; // RGBA
            _frameBuffer     = new byte[_frameBufferSize];
            _frameStream     = new MemoryStream(_frameBuffer);

            // Media stream attributes

            var mediaStreamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            mediaStreamAttributes[MediaStreamAttributeKeys.VideoFourCC] = "RGBA";
            mediaStreamAttributes[MediaStreamAttributeKeys.Width]       = ((int)_frameSize.Width).ToString();
            mediaStreamAttributes[MediaStreamAttributeKeys.Height]      = ((int)_frameSize.Height).ToString();

            _videoStreamDescription = new MediaStreamDescription(MediaStreamType.Video, mediaStreamAttributes);

            // Media stream descriptions

            var mediaStreamDescriptions = new List <MediaStreamDescription> {
                _videoStreamDescription
            };

            // Media source attributes

            var mediaSourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();

            mediaSourceAttributes[MediaSourceAttributesKeys.Duration] = TimeSpan.FromSeconds(0).Ticks.ToString(CultureInfo.InvariantCulture);
            mediaSourceAttributes[MediaSourceAttributesKeys.CanSeek]  = false.ToString();

            _frameTime = (int)TimeSpan.FromSeconds((double)0).Ticks;

            // Start frame rate timer

            _frameRateTimer = new DispatcherTimer()
            {
                Interval = TimeSpan.FromSeconds(1)
            };
            _frameRateTimer.Tick += FrameRateTimer_Tick;
            _frameRateTimer.Start();

            // Report that we finished initializing its internal state and can now pass in frame samples

            ReportOpenMediaCompleted(mediaSourceAttributes, mediaStreamDescriptions);
        }
Ejemplo n.º 3
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        private void ConfigureAudioStream(IMediaParserMediaStream audio)
        {
            IAudioConfigurationSource configurationSource            = (IAudioConfigurationSource)audio.ConfigurationSource;
            Dictionary <MediaStreamAttributeKeys, string> dictionary = new Dictionary <MediaStreamAttributeKeys, string>();
            string codecPrivateData = configurationSource.CodecPrivateData;

            Debug.WriteLine("TsMediaStreamSource.ConfigureAudioStream(): CodecPrivateData: " + codecPrivateData);
            if (!string.IsNullOrWhiteSpace(codecPrivateData))
            {
                dictionary[MediaStreamAttributeKeys.CodecPrivateData] = codecPrivateData;
            }
            MediaStreamDescription streamDescription = new MediaStreamDescription(MediaStreamType.Audio, (IDictionary <MediaStreamAttributeKeys, string>)dictionary);

            lock (this._streamConfigurationLock)
            {
                this._audioStreamSource      = audio.StreamSource;
                this._audioStreamDescription = streamDescription;
            }
        }
Ejemplo n.º 4
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        private bool SendLastStreamSample(MediaStreamDescription mediaStreamDescription)
        {
            this._taskScheduler.ThrowIfNotOnThread();
            this.ReportGetSampleProgress(1.0);
            MediaStreamSample mediaStreamSample = new MediaStreamSample(mediaStreamDescription, (Stream)null, 0L, 0L, 0L, (IDictionary <MediaSampleAttributeKeys, string>)TsMediaStreamSource.NoMediaSampleAttributes);

            Debug.WriteLine("Sample {0} is null", (object)mediaStreamDescription.Type);
            switch (mediaStreamDescription.Type)
            {
            case MediaStreamType.Audio:
                this.AudioStreamSource = (IStreamSource)null;
                break;

            case MediaStreamType.Video:
                this.VideoStreamSource = (IStreamSource)null;
                break;

            default:
                Debug.Assert(false, "Unknown stream type: " + (object)mediaStreamDescription.Type);
                break;
            }
            bool flag = this.VideoStreamSource == null && null == this.AudioStreamSource;

            if (flag)
            {
                Debug.WriteLine("TsMediaStreamSource.SendLastStreamSample() All streams closed");
                lock (this._stateLock)
                {
                    this._isClosed = true;
                    if (TsMediaStreamSource.SourceState.Closed != this._state)
                    {
                        this._state = TsMediaStreamSource.SourceState.WaitForClose;
                    }
                }
            }
            this.ValidateEvent(MediaStreamFsm.MediaEvent.CallingReportSampleCompleted);
            this.ReportGetSampleCompleted(mediaStreamSample);
            if (flag)
            {
                this.ValidateEvent(MediaStreamFsm.MediaEvent.StreamsClosed);
            }
            return(true);
        }
Ejemplo n.º 5
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        protected override void OpenMediaAsync()
        {
            currentPosition = currentTimeStamp = 0;
            memoryStream    = new MemoryStream();
            binaryWriter    = new BinaryWriter(memoryStream);

            var mediaStreamAttributes = new Dictionary <MediaStreamAttributeKeys, string>(1);
            var mediaSourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>(3);

            mediaStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = Formatter.ToPcmBase16String(DefaultWaveFormat);
            mediaSourceAttributes[MediaSourceAttributesKeys.CanSeek]         = "false";
            mediaSourceAttributes[MediaSourceAttributesKeys.Duration]        = "0";

            streamDescription = new MediaStreamDescription(MediaStreamType.Audio, mediaStreamAttributes);

            timer.Start();

            ReportOpenMediaCompleted(mediaSourceAttributes, new[] { streamDescription });
        }
Ejemplo n.º 6
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        protected override void OpenMediaAsync()
        {
            var flvFile = new FlvFile(this.mediaStream);

            this.audioSamples = flvFile.FlvFileBody.Tags.Where(tag => tag.TagType == TagType.Audio).ToList();
            this.videoSamples = flvFile.FlvFileBody.Tags.Where(tag => tag.TagType == TagType.Video).ToList();

            //Audio
            WaveFormatExtensible wfx = new WaveFormatExtensible();

            wfx.FormatTag             = 0x00FF;
            wfx.Channels              = 2;
            wfx.BlockAlign            = 8;
            wfx.BitsPerSample         = 16;
            wfx.SamplesPerSec         = 44100;
            wfx.AverageBytesPerSecond = wfx.SamplesPerSec * wfx.Channels * wfx.BitsPerSample / wfx.BlockAlign;
            wfx.Size = 0;
            string codecPrivateData = wfx.ToHexString();

            Dictionary <MediaStreamAttributeKeys, string> audioStreamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            audioStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = codecPrivateData;
            this.audioStreamDescription = new MediaStreamDescription(MediaStreamType.Audio, audioStreamAttributes);

            //Video
            Dictionary <MediaStreamAttributeKeys, string> videoStreamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            videoStreamAttributes[MediaStreamAttributeKeys.VideoFourCC] = "H264";
            this.videoStreamDescription = new MediaStreamDescription(MediaStreamType.Video, videoStreamAttributes);

            //Media
            Dictionary <MediaSourceAttributesKeys, string> mediaSourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();

            mediaSourceAttributes[MediaSourceAttributesKeys.Duration] = audioSamples.Last().Timestamp.ToString(CultureInfo.InvariantCulture);
            mediaSourceAttributes[MediaSourceAttributesKeys.CanSeek]  = true.ToString();

            List <MediaStreamDescription> mediaStreamDescriptions = new List <MediaStreamDescription>();

            mediaStreamDescriptions.Add(this.audioStreamDescription);
            mediaStreamDescriptions.Add(this.videoStreamDescription);

            this.ReportOpenMediaCompleted(mediaSourceAttributes, mediaStreamDescriptions);
        }
Ejemplo n.º 7
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        protected override void OpenMediaAsync()
        {
            System.Diagnostics.Debug.WriteLine("Started OpenMediaAsync");

            _startPosition = _currentPosition = 0;


            // Init
            Dictionary <MediaStreamAttributeKeys, string> streamAttributes =
                new Dictionary <MediaStreamAttributeKeys, string>();
            Dictionary <MediaSourceAttributesKeys, string> sourceAttributes =
                new Dictionary <MediaSourceAttributesKeys, string>();
            List <MediaStreamDescription> availableStreams =
                new List <MediaStreamDescription>();

            // Stream Description and WaveFormatEx
            streamAttributes[MediaStreamAttributeKeys.CodecPrivateData] =
                _waveFormat.ToHexString(); // wfx
            MediaStreamDescription msd =
                new MediaStreamDescription(MediaStreamType.Audio,
                                           streamAttributes);

            _audioDesc = msd;

            // next, add the description so that Silverlight will
            // actually request samples for it
            availableStreams.Add(_audioDesc);

            // Tell silverlight we have an endless stream
            sourceAttributes[MediaSourceAttributesKeys.Duration] =
                TimeSpan.FromMinutes(0).Ticks.ToString(
                    CultureInfo.InvariantCulture);

            // we don't support seeking on our stream
            sourceAttributes[MediaSourceAttributesKeys.CanSeek] =
                false.ToString();

            // tell Silverlight we're done opening our media
            ReportOpenMediaCompleted(sourceAttributes, availableStreams);

            //System.Diagnostics.Debug.WriteLine("Completed OpenMediaAsync");
        }
Ejemplo n.º 8
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    protected override void OpenMediaAsync()
    {
        int    channels      = this.Asap.GetInfo().GetChannels();
        int    blockSize     = channels * BitsPerSample >> 3;
        string waveFormatHex = string.Format("0100{0:X2}00{1:X8}{2:X8}{3:X2}00{4:X2}000000",
                                             channels, SwapBytes(ASAP.SampleRate), SwapBytes(ASAP.SampleRate * blockSize), blockSize, BitsPerSample);
        Dictionary <MediaStreamAttributeKeys, string> streamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

        streamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = waveFormatHex;
        this.MediaStreamDescription = new MediaStreamDescription(MediaStreamType.Audio, streamAttributes);

        Dictionary <MediaSourceAttributesKeys, string> sourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();

        sourceAttributes[MediaSourceAttributesKeys.CanSeek]  = "True";
        sourceAttributes[MediaSourceAttributesKeys.Duration] = (this.Duration < 0 ? 0 : this.Duration * 10000L).ToString();

        ReportOpenMediaCompleted(sourceAttributes, new MediaStreamDescription[1] {
            this.MediaStreamDescription
        });
    }
        protected override void OpenMediaAsync()
        {
            // Prepare the description of the stream.
            var sourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();
            var availableStreams = new List <MediaStreamDescription>();
            var streamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            streamAttributes[MediaStreamAttributeKeys.VideoFourCC] = "RGBA";
            streamAttributes[MediaStreamAttributeKeys.Height]      = frameHeight.ToString();
            streamAttributes[MediaStreamAttributeKeys.Width]       = frameWidth.ToString();
            videoDesc = new MediaStreamDescription(MediaStreamType.Video, streamAttributes);
            availableStreams.Add(videoDesc);

            // a zero timespan is an infinite video
            sourceAttributes[MediaSourceAttributesKeys.Duration] = TimeSpan.Zero.Ticks.ToString(CultureInfo.InvariantCulture);
            sourceAttributes[MediaSourceAttributesKeys.CanSeek]  = false.ToString();
            startTime = DateTime.Now;

            // Tell Silverlight that we've prepared and opened our video
            ReportOpenMediaCompleted(sourceAttributes, availableStreams);
        }
Ejemplo n.º 10
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        protected override void OpenMediaAsync()
        {
            var mediaStreamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            mediaStreamAttributes[MediaStreamAttributeKeys.VideoFourCC] = "RGBA";
            mediaStreamAttributes[MediaStreamAttributeKeys.Width]       = ((int)frameSize.Width).ToString();
            mediaStreamAttributes[MediaStreamAttributeKeys.Height]      = ((int)frameSize.Height).ToString();

            videoStreamDescription = new MediaStreamDescription(MediaStreamType.Video, mediaStreamAttributes);

            var mediaStreamDescriptions = new List <MediaStreamDescription>();

            mediaStreamDescriptions.Add(videoStreamDescription);

            var mediaSourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();

            mediaSourceAttributes[MediaSourceAttributesKeys.Duration] = TimeSpan.FromSeconds(0).Ticks.ToString(CultureInfo.InvariantCulture);
            mediaSourceAttributes[MediaSourceAttributesKeys.CanSeek]  = false.ToString();

            ReportOpenMediaCompleted(mediaSourceAttributes, mediaStreamDescriptions);
        }
Ejemplo n.º 11
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        protected override void OpenMediaAsync()
        {
            Dictionary <MediaSourceAttributesKeys, string> sourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();

            sourceAttributes[MediaSourceAttributesKeys.Duration] = 0.ToString();
            sourceAttributes[MediaSourceAttributesKeys.CanSeek]  = false.ToString();

            // TODO: need to allow for configurable output format.
            this.format  = WaveFormat.CreateCustomFormat(WaveFormatEncoding.Pcm, 44100, 1, 2 * 44100, 2, 2 * 8);
            this.samples = new MemoryStream();

            Dictionary <MediaStreamAttributeKeys, string> streamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            streamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = this.format.ToHexString();

            this.description = new MediaStreamDescription(MediaStreamType.Audio, streamAttributes);

            this.AudioBufferLength = 30;

            this.ReportOpenMediaCompleted(sourceAttributes, new MediaStreamDescription[] { this.description });
        }
Ejemplo n.º 12
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        protected override void OpenMediaAsync()
        {
            _timestamp = 0;

            var sourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>()
            {
                { MediaSourceAttributesKeys.Duration, "0" }, { MediaSourceAttributesKeys.CanSeek, "false" }
            };
            var streamAttributes = new Dictionary <MediaStreamAttributeKeys, string>()
            {
                { MediaStreamAttributeKeys.CodecPrivateData, _waveFormat.ToHexString() }
            };

            _audioDescription = new MediaStreamDescription(MediaStreamType.Audio, streamAttributes);
            var availableStreams = new List <MediaStreamDescription>()
            {
                _audioDescription
            };

            ReportOpenMediaCompleted(sourceAttributes, availableStreams);
        }
Ejemplo n.º 13
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        private void ReadPastId3v2TagsCallback(MpegFrame mpegLayer3Frame, Dictionary <MediaStreamAttributeKeys, string> mediaStreamAttributes, List <MediaStreamDescription> mediaStreamDescriptions, Dictionary <MediaSourceAttributesKeys, string> mediaSourceAttributes)
        {
            if (mpegLayer3Frame.FrameSize <= 0)
            {
                throw new InvalidOperationException("MpegFrame's FrameSize cannot be negative");
            }
            WaveFormatExtensible formatExtensible = new WaveFormatExtensible();

            this.MpegLayer3WaveFormat = new MpegLayer3WaveFormat();
            this.MpegLayer3WaveFormat.WaveFormatExtensible                       = formatExtensible;
            this.MpegLayer3WaveFormat.WaveFormatExtensible.FormatTag             = (short)85;
            this.MpegLayer3WaveFormat.WaveFormatExtensible.Channels              = mpegLayer3Frame.Channels == Channel.SingleChannel ? (short)1 : (short)2;
            this.MpegLayer3WaveFormat.WaveFormatExtensible.SamplesPerSec         = mpegLayer3Frame.SamplingRate;
            this.MpegLayer3WaveFormat.WaveFormatExtensible.AverageBytesPerSecond = mpegLayer3Frame.Bitrate / 8;
            this.MpegLayer3WaveFormat.WaveFormatExtensible.BlockAlign            = (short)1;
            this.MpegLayer3WaveFormat.WaveFormatExtensible.BitsPerSample         = (short)0;
            this.MpegLayer3WaveFormat.WaveFormatExtensible.ExtraDataSize         = (short)12;
            this.MpegLayer3WaveFormat.Id = (short)1;
            this.MpegLayer3WaveFormat.BitratePaddingMode       = 0;
            this.MpegLayer3WaveFormat.FramesPerBlock           = (short)1;
            this.MpegLayer3WaveFormat.BlockSize                = (short)mpegLayer3Frame.FrameSize;
            this.MpegLayer3WaveFormat.CodecDelay               = (short)0;
            mediaStreamAttributes[(MediaStreamAttributeKeys)0] = this.MpegLayer3WaveFormat.ToHexString();
            this.audioStreamDescription = new MediaStreamDescription((MediaStreamType)0, (IDictionary <MediaStreamAttributeKeys, string>)mediaStreamAttributes);
            mediaStreamDescriptions.Add(this.audioStreamDescription);
            this.trackDuration = new TimeSpan(0, 0, (int)(this.audioStreamLength / (long)this.MpegLayer3WaveFormat.WaveFormatExtensible.AverageBytesPerSecond));
            mediaSourceAttributes[(MediaSourceAttributesKeys)1] = this.trackDuration.Ticks.ToString((IFormatProvider)CultureInfo.InvariantCulture);
            if (this.audioStream.CanSeek)
            {
                mediaSourceAttributes[(MediaSourceAttributesKeys)0] = "True";
            }
            else
            {
                mediaSourceAttributes[(MediaSourceAttributesKeys)0] = "False";
            }
            this.ReportOpenMediaCompleted((IDictionary <MediaSourceAttributesKeys, string>)mediaSourceAttributes, (IEnumerable <MediaStreamDescription>)mediaStreamDescriptions);
            this.currentFrame = mpegLayer3Frame;
            this.currentFrameStartPosition = 4L;
        }
        protected override void OpenMediaAsync()
        {
            Dictionary <MediaStreamAttributeKeys, string> streamAttr =
                new Dictionary <MediaStreamAttributeKeys, string>();

            streamAttr[MediaStreamAttributeKeys.CodecPrivateData] = _encodedWaveFormat;

            _audioDesc = new MediaStreamDescription(MediaStreamType.Audio, streamAttr);

            List <MediaStreamDescription> availableStreams =
                new List <MediaStreamDescription>();

            availableStreams.Add(_audioDesc);

            Dictionary <MediaSourceAttributesKeys, string> sourceAttr =
                new Dictionary <MediaSourceAttributesKeys, string>();

            sourceAttr[MediaSourceAttributesKeys.Duration] = "0";
            sourceAttr[MediaSourceAttributesKeys.CanSeek]  = "False";

            ReportOpenMediaCompleted(sourceAttr, availableStreams);
        }
Ejemplo n.º 15
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        private void ConfigureVideoStream(IMediaParserMediaStream video)
        {
            IVideoConfigurationSource configurationSource            = (IVideoConfigurationSource)video.ConfigurationSource;
            Dictionary <MediaStreamAttributeKeys, string> dictionary = new Dictionary <MediaStreamAttributeKeys, string>();

            dictionary[MediaStreamAttributeKeys.VideoFourCC] = configurationSource.VideoFourCc;
            string codecPrivateData = configurationSource.CodecPrivateData;

            Debug.WriteLine("MediaStreamConfigurator.ConfigureVideoStream(): CodecPrivateData: " + codecPrivateData);
            if (!string.IsNullOrWhiteSpace(codecPrivateData))
            {
                dictionary[MediaStreamAttributeKeys.CodecPrivateData] = codecPrivateData;
            }
            dictionary[MediaStreamAttributeKeys.Height] = configurationSource.Height.ToString();
            dictionary[MediaStreamAttributeKeys.Width]  = configurationSource.Width.ToString();
            MediaStreamDescription streamDescription = new MediaStreamDescription(MediaStreamType.Video, (IDictionary <MediaStreamAttributeKeys, string>)dictionary);

            lock (this._streamConfigurationLock)
            {
                this._videoStreamSource      = video.StreamSource;
                this._videoStreamDescription = streamDescription;
            }
        }
Ejemplo n.º 16
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        protected override void OpenMediaAsync()
        {
            // Define the available streams.
            var streamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            streamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = _waveFormat.ToHexString();
            _mediaStreamDescription = new MediaStreamDescription(MediaStreamType.Audio, streamAttributes);
            var availableStreams = new List <MediaStreamDescription> {
                _mediaStreamDescription
            };

            // Define pieces that are common to all streams.
            var sourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();

            sourceAttributes[MediaSourceAttributesKeys.Duration] = TimeSpan.Zero.Ticks.ToString(CultureInfo.InvariantCulture); // 0 = Indefinite
            sourceAttributes[MediaSourceAttributesKeys.CanSeek]  = "0";                                                        // 0 = False

            // Start the timer.
            _startTime = DateTime.Now;

            // Tell Silverlight we're ready to play.
            ReportOpenMediaCompleted(sourceAttributes, availableStreams);
        }
Ejemplo n.º 17
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        protected override void CloseMedia()
        {
            if (_frameStream != null)
            {
                _frameStream.Close();
                _frameStream = null;
            }

            if (_frameRateTimer != null)
            {
                _frameRateTimer.Stop();
                _frameRateTimer.Tick -= FrameRateTimer_Tick;
                _frameRateTimer       = null;
            }

            _frameStreamOffset      = 0;
            _frameTime              = 0;
            _frameCount             = 0;
            _frameBufferSize        = 0;
            _frameBuffer            = null;
            _videoStreamDescription = null;
            _currentTime            = 0;
        }
Ejemplo n.º 18
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        private void Configure(IMediaStreamConfiguration configuration)
        {
            ICollection <MediaStreamDescription> descriptions = configuration.Descriptions;

            Debug.WriteLine("TsMediaStreamSource: ReportOpenMediaCompleted ({0} streams)", (object)descriptions.Count);
            this.VideoStreamSource = configuration.VideoStreamSource;
            this.AudioStreamSource = configuration.AudioStreamSource;
            IDictionary <MediaSourceAttributesKeys, string> attributes = configuration.Attributes;

            foreach (KeyValuePair <MediaSourceAttributesKeys, string> keyValuePair in (IEnumerable <KeyValuePair <MediaSourceAttributesKeys, string> >)attributes)
            {
                Debug.WriteLine("TsMediaStreamSource: ReportOpenMediaCompleted {0} = {1}", (object)keyValuePair.Key, (object)keyValuePair.Value);
            }
            foreach (MediaStreamDescription streamDescription in (IEnumerable <MediaStreamDescription>)descriptions)
            {
                switch (streamDescription.Type)
                {
                case MediaStreamType.Audio:
                    this._audioStreamDescription = streamDescription;
                    break;

                case MediaStreamType.Video:
                    this._videoStreamDescription = streamDescription;
                    break;
                }
            }
            bool canSeek = configuration.Duration.HasValue;
            Task task    = Task.Factory.StartNew((Action)(() =>
            {
                this._taskScheduler.ThrowIfNotOnThread();
                this.ValidateEvent(canSeek ? MediaStreamFsm.MediaEvent.CallingReportOpenMediaCompleted : MediaStreamFsm.MediaEvent.CallingReportOpenMediaCompletedLive);
                this.ReportOpenMediaCompleted(attributes, (IEnumerable <MediaStreamDescription>)descriptions);
                this.State = canSeek ? TsMediaStreamSource.SourceState.Seek : TsMediaStreamSource.SourceState.Play;
            }), CancellationToken.None, TaskCreationOptions.None, (TaskScheduler)this._taskScheduler);

            TaskCollector.Default.Add(task, "TsMediaStreamSource CompleteConfigure");
        }
Ejemplo n.º 19
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        protected override void OpenMediaAsync()
        {
            int   byteRate   = sampleRate * ChannelCount * BitsPerSample / 8;
            short blockAlign = (short)(ChannelCount * (BitsPerSample / 8));

            // Build string-based wave-format structure
            string waveFormat = "";

            waveFormat += ToLittleEndianString(string.Format("{0:X4}", 1));      // indicates PCM
            waveFormat += ToLittleEndianString(string.Format("{0:X4}", ChannelCount));
            waveFormat += ToLittleEndianString(string.Format("{0:X8}", sampleRate));
            waveFormat += ToLittleEndianString(string.Format("{0:X8}", byteRate));
            waveFormat += ToLittleEndianString(string.Format("{0:X4}", blockAlign));
            waveFormat += ToLittleEndianString(string.Format("{0:X4}", BitsPerSample));
            waveFormat += ToLittleEndianString(string.Format("{0:X4}", 0));

            // Put wave format string in media streams dictionary
            var mediaStreamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            mediaStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = waveFormat;

            // Make description to add to available streams list
            var availableMediaStreams = new List <MediaStreamDescription>();

            mediaStreamDescription = new MediaStreamDescription(MediaStreamType.Audio, mediaStreamAttributes);
            availableMediaStreams.Add(mediaStreamDescription);

            // Set some appropriate keys in the media source dictionary
            var mediaSourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();

            mediaSourceAttributes[MediaSourceAttributesKeys.Duration] = "0";
            mediaSourceAttributes[MediaSourceAttributesKeys.CanSeek]  = "false";

            // Signal that the open operation is completed
            ReportOpenMediaCompleted(mediaSourceAttributes, availableMediaStreams);
        }
Ejemplo n.º 20
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 private static void ParseAvcConfig(
     MediaStreamDescription stream,
     List<MediaStreamSample> samples,
     byte[] data)
 {
     System.IO.Stream ios = new System.IO.MemoryStream(data);
     ios.Seek(5, System.IO.SeekOrigin.Begin);
     int num_sps = ios.ReadByte() & 0x1f;
     for (int i = 0; i < num_sps; ++i)
     {
         int len_sps = (ios.ReadByte() << 8) | ios.ReadByte();
         byte[] sps = new byte[len_sps];
         ios.Read(sps, 0, len_sps);
         samples.Add(new MediaStreamSample(
             stream,
             new System.IO.MemoryStream(sps),
             0,
             len_sps,
             0,
             new Dictionary<MediaSampleAttributeKeys, string>()));
     }
     int num_pps = ios.ReadByte();
     for (int i = 0; i < num_pps; ++i)
     {
         int len_pps = (ios.ReadByte() << 8) | ios.ReadByte();
         byte[] pps = new byte[len_pps];
         ios.Read(pps, 0, len_pps);
         samples.Add(new MediaStreamSample(
             stream,
             new System.IO.MemoryStream(pps),
             0,
             len_pps,
             0,
             new Dictionary<MediaSampleAttributeKeys, string>()));
     }
 }
Ejemplo n.º 21
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        protected override void SwitchMediaStreamAsync(MediaStreamDescription mediaStreamDescription)
        {
            Debug.WriteLine("SwitchMediaStreamAsync: " + mediaStreamDescription.StreamId);

            this.ReportSwitchMediaStreamCompleted(mediaStreamDescription);
        }
Ejemplo n.º 22
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 protected override void CloseMedia()
 {
     _startPosition    = _currentPosition = 0;
     _RiffParser       = null;
     _audioDescription = null;
 }
Ejemplo n.º 23
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        protected override void OpenMediaAsync()
        {
            //WaveFormatEx
            HeAacWaveFormat      aacf = new HeAacWaveFormat();
            WaveFormatExtensible wfx  = new WaveFormatExtensible();

            aacf.WaveFormatExtensible = wfx;

            aacf.WaveFormatExtensible.FormatTag             = 0x1610; //0xFF;//0x1610;
            aacf.WaveFormatExtensible.Channels              = 2;      //
            aacf.WaveFormatExtensible.BlockAlign            = 1;
            aacf.WaveFormatExtensible.BitsPerSample         = 0;      //16; //unkonw set to 0
            aacf.WaveFormatExtensible.SamplesPerSec         = 24000;  //  from 8000 to 96000 Hz
            aacf.WaveFormatExtensible.AverageBytesPerSecond = 0;      //wfx.SamplesPerSec * wfx.Channels * wfx.BitsPerSample / wfx.BlockAlign;
            aacf.WaveFormatExtensible.Size = 12;

            // Extra 3 words in WAVEFORMATEX
            // refer to http://msdn.microsoft.com/en-us/library/windows/desktop/dd757806(v=vs.85).aspx
            aacf.wPayloadType = 0x0; //Audio Data Transport Stream (ADTS). The stream contains an adts_sequence, as defined by MPEG-2.
            aacf.wAudioProfileLevelIndication = 0xFE;
            aacf.wStructType = 0;

            string codecPrivateData = aacf.ToHexString();

            Dictionary <MediaStreamAttributeKeys, string> audioStreamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            audioStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = codecPrivateData;
            audioStreamDescription = new MediaStreamDescription(MediaStreamType.Audio, audioStreamAttributes);


            m_vbuffer.WaitForWorkItem();

            m_curVideoBlk = m_vbuffer.Dequeue().CommandParameter as MSF.VideoBlock;

            if (m_curVideoBlk == null)
            {
                return;
            }
            vIdx = 0;
            fNum = (int)m_curVideoBlk.VideoFrameNum;


            H264NalFormat h264f = new H264NalFormat();

            h264f.sps = m_curVideoBlk.FirstIFrameInfo.sps;
            h264f.pps = m_curVideoBlk.FirstIFrameInfo.pps;
            string s = h264f.ToHexString();

            //Video
            Dictionary <MediaStreamAttributeKeys, string> videoStreamAttributes = new Dictionary <MediaStreamAttributeKeys, string>();

            videoStreamAttributes[MediaStreamAttributeKeys.VideoFourCC]      = "H264";
            videoStreamAttributes[MediaStreamAttributeKeys.Height]           = "240";
            videoStreamAttributes[MediaStreamAttributeKeys.Width]            = "320";
            videoStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = s;//"0000016742E00D96520283F40500000168CE388000";
            videoStreamDescription = new MediaStreamDescription(MediaStreamType.Video, videoStreamAttributes);

            //Media
            Dictionary <MediaSourceAttributesKeys, string> mediaSourceAttributes = new Dictionary <MediaSourceAttributesKeys, string>();

            mediaSourceAttributes[MediaSourceAttributesKeys.Duration] = TimeSpan.FromSeconds(6).Ticks.ToString(CultureInfo.InvariantCulture);
            mediaSourceAttributes[MediaSourceAttributesKeys.CanSeek]  = "0";

            List <MediaStreamDescription> mediaStreamDescriptions = new List <MediaStreamDescription>();

#if !DEBUG
            // Emulator does not support HE-AAC
            mediaStreamDescriptions.Add(audioStreamDescription);
#endif

            mediaStreamDescriptions.Add(videoStreamDescription);

            this.AudioBufferLength = 500;
            this.ReportOpenMediaCompleted(mediaSourceAttributes, mediaStreamDescriptions);
        }
Ejemplo n.º 24
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        private void OpenMediaCallback(
            Error ec)
        {
            if (ec != Error.success)
            {
                ErrorOccurred(ec.ToString());
                return;
            }

            Media media;
            demuxer_.get_media(out media);

            Dictionary<MediaSourceAttributesKeys, string> mediaSourceAttributes =
                new Dictionary<MediaSourceAttributesKeys, string>();
            mediaSourceAttributes[MediaSourceAttributesKeys.Duration] =
                media.duration.ToString();
            mediaSourceAttributes[MediaSourceAttributesKeys.CanSeek] =
                (media.duration != ulong.MaxValue).ToString();

            List<MediaStreamDescription> mediaStreamDescriptions =
                new List<MediaStreamDescription>();
            for (int i = 0; i < media.streams.Length; ++i)
            {
                Stream stream = media.streams[i];
                Dictionary<MediaStreamAttributeKeys, string> mediaStreamAttributes =
                    new Dictionary<MediaStreamAttributeKeys, string>();
                mediaStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] =
                    stream.codec_data.ToString();
                if (stream.type == StreamType.video)
                {
                    mediaStreamAttributes[MediaStreamAttributeKeys.VideoFourCC] =
                        FourCC[(int)stream.sub_type];
                    mediaStreamAttributes[MediaStreamAttributeKeys.Width] =
                        stream.video.width.ToString();
                    mediaStreamAttributes[MediaStreamAttributeKeys.Height] =
                        stream.video.height.ToString();
                    char[] CodecPrivateDataHex = new char[stream.codec_data.Length * 2];
                    int index = 0;
                    ToHexHelper(CodecPrivateDataHex, ref index, stream.codec_data); // ExtraData
                    //mediaStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] =
                    //    new String(CodecPrivateDataHex);
                    MediaStreamDescription videoStreamDescription =
                        new MediaStreamDescription(MediaStreamType.Video, mediaStreamAttributes);
                    mediaStreamDescriptions.Add(videoStreamDescription);
                    mediaStreamTypes_.Add(MediaStreamType.Video);
                    mediaStreamDescriptions_[MediaStreamType.Video] = videoStreamDescription;
                    mediaStreamSamples_[MediaStreamType.Video] = new List<MediaStreamSample>();
                    //ParseAvcConfig(videoStreamDescription, mediaStreamSamples_[MediaStreamType.Video], stream.codec_data);
                }
                else if (stream.type == StreamType.audio)
                {
                    char[] WaveFormatExHex = new char[9 * 4 + stream.codec_data.Length * 2];
                    int index = 0;
                    ToHexHelper(WaveFormatExHex, ref index, 2, 255); // FormatTag
                    ToHexHelper(WaveFormatExHex, ref index, 2, stream.audio.channel_count); // Channels
                    ToHexHelper(WaveFormatExHex, ref index, 4, stream.audio.sample_rate); // SamplesPerSec
                    ToHexHelper(WaveFormatExHex, ref index, 4, 0); // AverageBytesPerSecond
                    ToHexHelper(WaveFormatExHex, ref index, 2, 1); // BlockAlign
                    ToHexHelper(WaveFormatExHex, ref index, 2, stream.audio.sample_size); // BitsPerSample
                    ToHexHelper(WaveFormatExHex, ref index, 2, stream.codec_data.Length); // ExtraDataSize
                    ToHexHelper(WaveFormatExHex, ref index, stream.codec_data); // ExtraData
                    mediaStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] =
                        new String(WaveFormatExHex);
                    MediaStreamDescription audioStreamDescription =
                        new MediaStreamDescription(MediaStreamType.Audio, mediaStreamAttributes);
                    mediaStreamDescriptions.Add(audioStreamDescription);
                    mediaStreamTypes_.Add(MediaStreamType.Audio);
                    mediaStreamDescriptions_[MediaStreamType.Audio] = audioStreamDescription;
                    mediaStreamSamples_[MediaStreamType.Audio] = new List<MediaStreamSample>();
                }
                else
                {
                    mediaStreamTypes_.Add(MediaStreamType.Script);
                }
            } // for

            ReportOpenMediaCompleted(mediaSourceAttributes, mediaStreamDescriptions);
        }
Ejemplo n.º 25
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 protected override void CloseMedia()
 {
     startPosition          = currentPosition = 0;
     mediaStreamDescription = null;
 }
Ejemplo n.º 26
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 protected override void SwitchMediaStreamAsync(MediaStreamDescription mediaStreamDescription)
 {
     ReportSwitchMediaStreamCompleted(mediaStreamDescription);
 }
Ejemplo n.º 27
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        /// <summary>
        /// Parses the passed in MediaStream to find the first frame and signals
        /// to its parent MediaElement that it is ready to begin playback by calling
        /// ReportOpenMediaCompleted.
        /// </summary>
        protected override void OpenMediaAsync()
        {
            System.Diagnostics.Debug.WriteLine(System.Threading.Thread.CurrentThread.ManagedThreadId.ToString() + ":  OpenMediaAsync()");

            // So, here is why this is a little weird.
            // The Shoutcast server software has the ability to provide web pages.  These pages just happen to be served from the SAME address as the media stream.
            // Putting a "/;" at the end of the Uri will tell the Shoutcast server that we aren't a web browser, so stream the data.  The problem is that not ALL
            // Shoutcast servers are configured that way.  So, we have to do a request to get the content type.  If it is text/html, we append the "/;" and move on.
            // If it is an empty string, 99.9% of the time, this will be the media stream (If it's an ICY stream, the ICY "headers" don't parse properly).  The ShoutcastStream
            // will handle this case, so we let it go through.
            HttpWebRequest contentTypeRequest = ShoutcastMediaStreamSource.CreateHttpWebRequest(this.StreamUri, this.IncludeMetadata);

            contentTypeRequest.BeginGetResponse(
                ia1 =>
            {
                HttpWebRequest req1 = ia1.AsyncState as HttpWebRequest;
                try
                {
                    HttpWebResponse res1 = (HttpWebResponse)req1.EndGetResponse(ia1);
                    string contentType   = res1.ContentType;
                    if ((contentType == string.Empty) || (contentType == "audio/mpeg") || contentType == "audio/x-mpegurl")
                    {
                        try
                        {
                            this.audioStream            = new ShoutcastStream(this, res1);
                            this.audioStreamDescription = this.audioStream.AudioStreamDescription;
                            this.ReportOpenMediaCompleted(this.audioStream.AudioSourceAttributes, new MediaStreamDescription[] { this.audioStream.AudioStreamDescription });
                        }
                        catch (Exception ex)
                        {
                            this.CleanupAudioStream();
                            this.ErrorOccurred(ex.Message);
                        }
                    }
                    else
                    {
                        // Close the original response.  We need another one.
                        res1.Close();
                        res1 = null;
                        if (!this.StreamUri.OriginalString.EndsWith("/", StringComparison.Ordinal))
                        {
                            this.StreamUri = new Uri(this.StreamUri.OriginalString + "/;", UriKind.Absolute);
                        }
                        else
                        {
                            this.StreamUri = new Uri(this.StreamUri.OriginalString + ";", UriKind.Absolute);
                        }

                        HttpWebRequest streamRequest = ShoutcastMediaStreamSource.CreateHttpWebRequest(this.StreamUri, this.IncludeMetadata);
                        streamRequest.BeginGetResponse(
                            ia =>
                        {
                            HttpWebRequest req = ia.AsyncState as HttpWebRequest;
                            try
                            {
                                HttpWebResponse res         = (HttpWebResponse)req.EndGetResponse(ia);
                                this.audioStream            = new ShoutcastStream(this, res);
                                this.audioStreamDescription = this.audioStream.AudioStreamDescription;
                                this.ReportOpenMediaCompleted(this.audioStream.AudioSourceAttributes, new MediaStreamDescription[] { this.audioStream.AudioStreamDescription });
                            }
                            catch (Exception ex)
                            {
                                if (res1 != null)
                                {
                                    res1.Close();
                                }

                                this.CleanupAudioStream();
                                this.ErrorOccurred(ex.Message);
                            }
                        },
                            streamRequest);
                    }
                }
                catch (Exception ex)
                {
                    this.CleanupAudioStream();
                    this.ErrorOccurred(ex.Message);
                }
            },
                contentTypeRequest);
        }
Ejemplo n.º 28
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 protected override void CloseMedia()
 {
     mediaStreamDescription = null;
 }
Ejemplo n.º 29
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 protected override void OpenMediaAsync()
 {
     m_timestampBlock = (long)Math.Round((decimal)(TimeSpan.FromSeconds(1).Ticks / (BUFFER_BLOCK_SIZE * m_multiple)));
     Dictionary<MediaStreamAttributeKeys, string> mediaStreamAttributes = new Dictionary<MediaStreamAttributeKeys, string>();
     mediaStreamAttributes[MediaStreamAttributeKeys.CodecPrivateData] = WAVE_HEADER;
     description = new MediaStreamDescription(MediaStreamType.Audio, mediaStreamAttributes);
     Dictionary<MediaSourceAttributesKeys, string> mediaSourceAttributes = new Dictionary<MediaSourceAttributesKeys, string>();
     mediaSourceAttributes[MediaSourceAttributesKeys.CanSeek] = false.ToString();
     mediaSourceAttributes[MediaSourceAttributesKeys.Duration] = m_tracks[Track.TEMPO_TRACK].Duration.TimeSpan.Ticks.ToString(CultureInfo.InvariantCulture);
     List<MediaStreamDescription> availableMediaStreams = new List<MediaStreamDescription>();
     availableMediaStreams.Add(new MediaStreamDescription(MediaStreamType.Audio, mediaStreamAttributes));
     ReportOpenMediaCompleted(mediaSourceAttributes, availableMediaStreams);
     ReportGetSampleProgress(0);
     GetSamples();
 }
Ejemplo n.º 30
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 protected override void CloseMedia()
 {
     binaryWriter.Dispose();
     timer.Stop();
     streamDescription = null;
 }
Ejemplo n.º 31
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 // Shouldn't get a call here because only one MediaStreamDescription is supported
 protected override void SwitchMediaStreamAsync(MediaStreamDescription mediaStreamDescription)
 {
     throw new NotImplementedException();
 }
Ejemplo n.º 32
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 protected override void SwitchMediaStreamAsync(MediaStreamDescription mediaStreamDescription)
 {
 }