internal async Task HandleHeadersAsync(KeyValuePair <string, string>[] headers)
{
if (headers == null)
{
throw new ArgumentNullException(nameof(headers), "Headers are null");
}
if (headers.Length == 0)
{
throw new ArgumentException(paramName: "headers", message: "Header count is 0");
}
await DetectAudioEncodingPropertiesAsync(headers);
if (cancelTokenSource.IsCancellationRequested)
{
return;
}
if (audioProperties == null)
{
throw new InvalidOperationException("Unable to detect audio encoding properties.");
}
var audioStreamDescriptor = new AudioStreamDescriptor(audioProperties);
MediaStreamSource = new MediaStreamSource(audioStreamDescriptor);
MediaStreamSource.Paused += MediaStreamSource_Paused;
MediaStreamSource.Starting += MediaStreamSource_Starting;
MediaStreamSource.Closed += MediaStreamSource_Closed;
MediaStreamSource.SampleRequested += MediaStreamSource_SampleRequested;
}
public override Windows.Media.Core.IMediaStreamDescriptor CreateMediaStreamDescriptor()
{
AudioEncodingProperties properties = null;
using (FlacHeaderReader header = new FlacHeaderReader(new MemoryStream(TrackEntry.CodecPrivate), true))
{
while (header.Read())
{
}
flacInfo = header.Streaminfo;
properties = AudioEncodingProperties.CreatePcm(
(uint)flacInfo.SampleRate,
(uint)flacInfo.ChannelsCount,
(uint)flacInfo.BitsPerSample);
}
var descriptor = new AudioStreamDescriptor(properties);
if (TrackEntry.CodecPrivate != null)
{
properties.SetFormatUserData(TrackEntry.CodecPrivate);
}
return(descriptor);
}
/// <summary>
/// Получить медиа источник.
/// </summary>
public async Task <MediaStreamSource> GetSource()
{
if (_mediaSource != null)
{
return(_mediaSource);
}
try
{
if (_file == null)
{
string cacheFileName = $"{Track.VKInfo.OwnerID} {Track.VKInfo.ID}.vksm";
_fileData = await _musicCacheService.GetVKSaverFile(cacheFileName);
if (_fileData == null)
{
return(null);
}
}
else
{
_fileData = new VKSaverAudioFile(_file);
}
_fileStream = await _fileData.GetContentStreamAsync();
var metadata = await _fileData.GetMetadataAsync();
_currentBitrate = metadata.Track.EncodingBitrate;
_currentChannels = metadata.Track.ChannelCount;
_bufferSize = (int)(_currentBitrate / 8) * (BUFFERED_TIME_SECONDS + 3);
_buffer = new byte[_bufferSize];
_sampleDuration = TimeSpan.FromMilliseconds(SAMPLE_SIZE / (_currentBitrate / 1000 / 8));
var audioProperties = AudioEncodingProperties.CreateMp3(
metadata.Track.SampleRate, _currentChannels, _currentBitrate);
var audioDescriptor = new AudioStreamDescriptor(audioProperties);
_mediaSource = new MediaStreamSource(audioDescriptor);
_mediaSource.CanSeek = true;
_mediaSource.MusicProperties.Title = Track.Title;
_mediaSource.MusicProperties.Artist = Track.Artist;
_mediaSource.MusicProperties.Album = "ВКачай";
_mediaSource.Duration = TimeSpan.FromTicks(metadata.Track.Duration);
_mediaSource.BufferTime = TimeSpan.FromSeconds(BUFFERED_TIME_SECONDS);
_mediaSource.Starting += MediaSource_Starting;
_mediaSource.SampleRequested += MediaSource_SampleRequested;
_mediaSource.Closed += MediaSource_Closed;
return(_mediaSource);
}
catch (Exception) { return(null); }
}
public MainPage()
{
this.InitializeComponent();
var protectionManager = new MediaProtectionManager();
//A setting to tell MF that we are using PlayReady.
var props = new Windows.Foundation.Collections.PropertySet();
props.Add("{F4637010-03C3-42CD-B932-B48ADF3A6A54}", "Windows.Media.Protection.PlayReady.PlayReadyWinRTTrustedInput");
protectionManager.Properties.Add("Windows.Media.Protection.MediaProtectionSystemIdMapping", props);
protectionManager.Properties.Add("Windows.Media.Protection.MediaProtectionSystemId", "{F4637010-03C3-42CD-B932-B48ADF3A6A54}");
//Maps the container guid from the manifest or media segment
protectionManager.Properties.Add("Windows.Media.Protection.MediaProtectionContainerGuid", "{9A04F079-9840-4286-AB92-E65BE0885F95}");
protectionManager.ServiceRequested += ProtectionManager_ServiceRequested;
protectionManager.ComponentLoadFailed += ProtectionManager_ComponentLoadFailed;
// media player
MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.MediaOpened += MediaPlayer_MediaOpened;
mediaPlayer.MediaFailed += MediaPlayer_MediaFailed;
// media source
#if true
AudioEncodingProperties audioProperties = AudioEncodingProperties.CreateAacAdts(44100, 1, 72000);
Guid MF_SD_PROTECTED = new Guid(0xaf2181, 0xbdc2, 0x423c, 0xab, 0xca, 0xf5, 0x3, 0x59, 0x3b, 0xc1, 0x21);
//audioProperties.Properties.Add(MF_SD_PROTECTED, 1 /* true ? doc says UINT32 - treat as a boolean value */);
audioProperties.Properties.Add(MF_SD_PROTECTED, PropertyValue.CreateUInt32(1));
AudioStreamDescriptor audioStreamDescriptor = new AudioStreamDescriptor(audioProperties);
foreach (var prop in audioStreamDescriptor.EncodingProperties.Properties)
{
Log(prop.Key.ToString() + " => " + prop.Value.ToString());
}
MediaStreamSource mediaStreamSource = new MediaStreamSource(audioStreamDescriptor);
mediaStreamSource.MediaProtectionManager = protectionManager; // protection manager is on the media stream source
mediaStreamSource.SampleRequested += MediaStreamSource_SampleRequested;
mediaStreamSource.Starting += MediaStreamSource_Starting;
MediaSource mediaSource = MediaSource.CreateFromMediaStreamSource(mediaStreamSource);
#else
MediaSource mediaSource = MediaSource.CreateFromUri(new Uri("http://profficialsite.origin.mediaservices.windows.net/c51358ea-9a5e-4322-8951-897d640fdfd7/tearsofsteel_4k.ism/manifest(format=mpd-time-csf)"));
mediaPlayer.ProtectionManager = protectionManager; // protection manager is on the media player
#endif
// play !
m_mediaPlayerElement.SetMediaPlayer(mediaPlayer);
mediaPlayer.Source = mediaSource;
mediaPlayer.Play();
}
protected void UpdateAudioStreamsMenu()
{
// Some updates could be avoided if we tracked a "dirty" flag and break execution if !dirty
lock (_syncObj)
{
IPlayerContextManager playerContextManager = ServiceRegistration.Get <IPlayerContextManager>();
int numActivePlayers = playerContextManager.NumActivePlayerContexts;
int numberOfAudioStreams = GetTotalNumberOfAudioStreams();
_audioStreamsMenu.Clear();
for (int i = 0; i < numActivePlayers; i++)
{
IPlayerContext pc = playerContextManager.GetPlayerContext(i);
if (pc == null || !pc.IsActive)
{
continue;
}
IPlayer player = pc.CurrentPlayer;
AudioStreamDescriptor currentAudioStream;
IList <AudioStreamDescriptor> asds = new List <AudioStreamDescriptor>(pc.GetAudioStreamDescriptors(out currentAudioStream));
foreach (AudioStreamDescriptor asd in asds)
{
string playedItem = player == null ? null : player.MediaItemTitle ?? pc.Name;
string choiceItemName;
int count = asds.Count;
if (numActivePlayers > 1 && count > 1 && count != numberOfAudioStreams)
{
// Only display the playedItem name if more than one player is able to provide audio streams. If a single player provides
// multiple streams, they will be distinguished by the VideoPlayer.
choiceItemName = playedItem + ": " + asd.AudioStreamName;
}
else
{
choiceItemName = count != numberOfAudioStreams ? playedItem : asd.AudioStreamName;
}
AudioStreamDescriptor asdClosureCopy = asd;
ListItem item = new ListItem(Consts.KEY_NAME, choiceItemName)
{
Command = new MethodDelegateCommand(() => ChooseAudioStream(asdClosureCopy)),
Selected = asd == currentAudioStream,
};
item.AdditionalProperties[Consts.KEY_NAVIGATION_MODE] = NavigationMode.ExitPCWorkflow;
_audioStreamsMenu.Add(item);
}
}
_audioStreamsMenu.FireChange();
}
}
public override Windows.Media.Core.IMediaStreamDescriptor CreateMediaStreamDescriptor()
{
Audio audioInfo = TrackEntry.Audio;
var properties = AudioEncodingProperties.CreateMp3(
(uint)audioInfo.SamplingFrequency,
(uint)audioInfo.Channels,
(uint)audioInfo.BitDepth);
var descriptor = new AudioStreamDescriptor(properties);
if (TrackEntry.CodecPrivate != null)
{
properties.SetFormatUserData(TrackEntry.CodecPrivate);
}
return(descriptor);
}
protected void UpdateAudioStreamsMenu()
{
// Some updates could be avoided if we tracked a "dirty" flag and break execution if !dirty
lock (_syncObj)
{
IPlayerManager playerManager = ServiceRegistration.Get <IPlayerManager>();
IPlayerContextManager playerContextManager = ServiceRegistration.Get <IPlayerContextManager>();
_audioStreamsMenu.Clear();
for (int i = 0; i < playerManager.NumActiveSlots; i++)
{
IPlayerContext pc = playerContextManager.GetPlayerContext(i);
IPlayer player = pc.CurrentPlayer;
AudioStreamDescriptor currentAudioStream;
IList <AudioStreamDescriptor> asds = new List <AudioStreamDescriptor>(pc.GetAudioStreamDescriptors(out currentAudioStream));
foreach (AudioStreamDescriptor asd in asds)
{
string playedItem = player == null ? null : player.MediaItemTitle ?? pc.Name;
string choiceItemName;
if (asds.Count > 1)
{
// Only display the audio stream name if the player has more than one audio stream
choiceItemName = playedItem + ": " + asd.AudioStreamName;
}
else
{
choiceItemName = playedItem;
}
AudioStreamDescriptor asdClosureCopy = asd;
ListItem item = new ListItem(Consts.KEY_NAME, choiceItemName)
{
Command = new MethodDelegateCommand(() => ChooseAudioStream(asdClosureCopy)),
Selected = asd == currentAudioStream,
};
item.AdditionalProperties[Consts.KEY_NAVIGATION_MODE] = NavigationMode.ExitPCWorkflow;
_audioStreamsMenu.Add(item);
}
}
_audioStreamsMenu.FireChange();
}
}
public override Windows.Media.Core.IMediaStreamDescriptor CreateMediaStreamDescriptor()
{
Audio audioInfo = TrackEntry.Audio;
//var properties = AudioEncodingProperties.CreatePcm(
// (uint)audioInfo.SamplingFrequency,
// (uint)audioInfo.Channels,
// audioInfo.BitDepth > 0 ? (uint)audioInfo.BitDepth : 16);
var properties = AudioEncodingProperties.CreatePcm(
Math.Max((UInt32)audioInfo.SamplingFrequency, (UInt32)8000),
2,
16);
var descriptor = new AudioStreamDescriptor(properties);
if (TrackEntry.CodecPrivate != null)
{
properties.SetFormatUserData(TrackEntry.CodecPrivate);
}
return(descriptor);
}
public void PlaySound(int samplingRate, byte[] pcmData)
{
AudioEncodingProperties audioProps = AudioEncodingProperties.CreatePcm((uint)samplingRate, 1, 16);
AudioStreamDescriptor audioDesc = new AudioStreamDescriptor(audioProps);
MediaStreamSource mss = new MediaStreamSource(audioDesc);
bool samplePlayed = false;
mss.SampleRequested += (sender, args) =>
{
if (samplePlayed)
return;
IBuffer ibuffer = pcmData.AsBuffer();
MediaStreamSample sample = MediaStreamSample.CreateFromBuffer(ibuffer, TimeSpan.Zero);
sample.Duration = TimeSpan.FromSeconds(pcmData.Length / 2.0 / samplingRate);
args.Request.Sample = sample;
samplePlayed = true;
};
mediaElement.SetMediaStreamSource(mss);
}
/// <summary>
/// Initializes a new instance of the <see cref="DialogAudioOutputMediaSource"/> class.
/// </summary>
/// <param name="stream"> The DialogAudioOutputStream to use as input for this MediaElement. </param>
public DialogAudioOutputMediaSource(DialogAudioOutputStream stream)
{
Contract.Requires(stream != null);
this.sourceStream = stream;
// Here we precompute constants for the duration of this source to avoid doing it every sample
var encoding = stream.Format.Encoding;
this.sampleDuration = SampleDurationForEncoding(encoding);
var bytesInSample = (uint)(this.sampleDuration.TotalSeconds * encoding.Bitrate / 8);
var sourceDescriptor = new AudioStreamDescriptor(stream.Format.Encoding);
var mediaStreamSource = new MediaStreamSource(sourceDescriptor)
{
IsLive = true,
BufferTime = TimeToBuffer,
};
mediaStreamSource.SampleRequested += this.OnMediaSampleRequested;
this.WindowsMediaSource = MediaSource.CreateFromIMediaSource(mediaStreamSource);
}
public ICollection <AudioStreamDescriptor> GetAvailableAudioStreams(out AudioStreamDescriptor currentAudioStream)
{
currentAudioStream = null;
IPlayerManager playerManager = ServiceRegistration.Get <IPlayerManager>();
ICollection <AudioStreamDescriptor> result = new List <AudioStreamDescriptor>();
int audioSlotIndex = playerManager.AudioSlotIndex;
for (int i = 0; i < 2; i++)
{
IPlayerContext playerContext = GetPlayerContext(i);
if (playerContext == null)
{
continue;
}
AudioStreamDescriptor current;
CollectionUtils.AddAll(result, playerContext.GetAudioStreamDescriptors(out current));
if (audioSlotIndex == i)
{
currentAudioStream = current;
}
}
return(result);
}
/// <summary>
/// Initialize the media element for playback
/// </summary>
/// <param name="streamConfig">Object containing stream configuration details</param>
void InitializeMediaPlayer(LimelightStreamConfiguration streamConfig, AvStreamSource streamSource)
{
this._streamSource = streamSource;
AudioEncodingProperties audioProperties = AudioEncodingProperties.CreatePcm(48000, 2, 16);
VideoEncodingProperties videoProperties = VideoEncodingProperties.CreateUncompressed(MediaEncodingSubtypes.H264Es,
(uint)streamConfig.GetWidth(), (uint)streamConfig.GetHeight());
videoProperties.ProfileId = H264ProfileIds.High;
_videoDesc = new VideoStreamDescriptor(videoProperties);
_audioDesc = new AudioStreamDescriptor(audioProperties);
_mss = new MediaStreamSource(_videoDesc, _audioDesc);
_mss.BufferTime = TimeSpan.Zero;
_mss.CanSeek = false;
_mss.Duration = TimeSpan.Zero;
_mss.SampleRequested += _mss_SampleRequested;
// Set for low latency playback
StreamDisplay.RealTimePlayback = true;
// Set the audio category to take advantage of hardware audio offload
StreamDisplay.AudioCategory = AudioCategory.ForegroundOnlyMedia;
// Render on the full window to avoid extra compositing
StreamDisplay.IsFullWindow = true;
// Disable built-in transport controls
StreamDisplay.AreTransportControlsEnabled = false;
// Start playing right away
StreamDisplay.AutoPlay = true;
StreamDisplay.SetMediaStreamSource(_mss);
}
/// <summary>
/// Initialize the media element for playback
/// </summary>
/// <param name="streamConfig">Object containing stream configuration details</param>
void InitializeMediaPlayer(LimelightStreamConfiguration streamConfig, AvStreamSource streamSource)
{
this._streamSource = streamSource;
AudioEncodingProperties audioProperties = AudioEncodingProperties.CreatePcm(48000, 2, 16);
VideoEncodingProperties videoProperties = VideoEncodingProperties.CreateUncompressed(MediaEncodingSubtypes.H264Es,
(uint)streamConfig.GetWidth(), (uint)streamConfig.GetHeight());
videoProperties.ProfileId = H264ProfileIds.High;
_videoDesc = new VideoStreamDescriptor(videoProperties);
_audioDesc = new AudioStreamDescriptor(audioProperties);
_mss = new MediaStreamSource(_videoDesc, _audioDesc);
_mss.BufferTime = TimeSpan.Zero;
_mss.CanSeek = false;
_mss.Duration = TimeSpan.Zero;
_mss.SampleRequested += _mss_SampleRequested;
// Set for low latency playback
StreamDisplay.RealTimePlayback = true;
// Set the audio category to take advantage of hardware audio offload
StreamDisplay.AudioCategory = AudioCategory.ForegroundOnlyMedia;
// Render on the full window to avoid extra compositing
StreamDisplay.IsFullWindow = true;
// Disable built-in transport controls
StreamDisplay.AreTransportControlsEnabled = false;
// Start playing right away
StreamDisplay.AutoPlay = true;
StreamDisplay.SetMediaStreamSource(_mss);
}
protected void UpdatePlayerSlotAudioMenu()
{
// Some updates could be avoided if we tracked a "dirty" flag and break execution if !dirty
lock (_syncObj)
{
IPlayerManager playerManager = ServiceRegistration.Get <IPlayerManager>();
IPlayerContextManager playerContextManager = ServiceRegistration.Get <IPlayerContextManager>();
_playerSlotAudioMenu.Clear();
IPlayerContext pc = _playerAudioMenuPlayerContext;
if (pc == null || !pc.IsActive)
{
LeaveAudioMenuWorkflow();
return;
}
IPlayer player = pc.CurrentPlayer;
AudioStreamDescriptor currentAudioStream;
IList <AudioStreamDescriptor> asds = new List <AudioStreamDescriptor>(pc.GetAudioStreamDescriptors(out currentAudioStream));
foreach (AudioStreamDescriptor asd in asds)
{
string playedItem = player == null ? null : player.MediaItemTitle ?? pc.Name;
string choiceItemName;
if (asds.Count > 1)
{
// Only display the audio stream name if the player has more than one audio stream
choiceItemName = playedItem + ": " + asd.AudioStreamName;
}
else
{
choiceItemName = playedItem;
}
AudioStreamDescriptor asdClosureCopy = asd;
ListItem item = new ListItem(Consts.KEY_NAME, choiceItemName)
{
Command = new MethodDelegateCommand(() => ChooseAudioStream(asdClosureCopy)),
Selected = asd == currentAudioStream,
};
item.AdditionalProperties[Consts.KEY_NAVIGATION_MODE] = NavigationMode.ExitPCWorkflow;
_playerSlotAudioMenu.Add(item);
}
if (_showToggleMute)
{
ListItem item;
if (playerManager.Muted)
{
item = new ListItem(Consts.KEY_NAME, Consts.RES_MUTE_OFF)
{
Command = new MethodDelegateCommand(PlayersResetMute),
Selected = true,
}
}
;
else
{
item = new ListItem(Consts.KEY_NAME, Consts.RES_MUTE)
{
Command = new MethodDelegateCommand(PlayersMute)
}
};
item.AdditionalProperties[Consts.KEY_NAVIGATION_MODE] = NavigationMode.ExitPCWorkflow;
_playerSlotAudioMenu.Add(item);
}
IList <IPlayerContext> playerContexts = playerContextManager.PlayerContexts.ToList();
_playerSlotAudioMenu.FireChange();
_playerSlotAudioMenuHeader = LocalizationHelper.CreateResourceString(Consts.RES_PLAYER_SLOT_AUDIO_MENU).Evaluate(
GetNameForPlayerContext(_playerAudioMenuPlayerContext, playerContexts.IndexOf(_playerAudioMenuPlayerContext)));
}
}
async Task <MediaStreamSource> createMediaStream2(string url = "ms-appx:///Assets/test.mp3")
{
var file = await Windows.Storage.StorageFile.GetFileFromApplicationUriAsync(new Uri(url));
var stream = await file.OpenReadAsync();
MusicProperties mp3FileProperties = await file.Properties.GetMusicPropertiesAsync();
List <string> encodingPropertiesToRetrieve = new List <string>();
encodingPropertiesToRetrieve.Add("System.Audio.SampleRate");
encodingPropertiesToRetrieve.Add("System.Audio.ChannelCount");
encodingPropertiesToRetrieve.Add("System.Audio.EncodingBitrate");
var encodingProperties = await file.Properties.RetrievePropertiesAsync(encodingPropertiesToRetrieve);
uint sampleRate = (uint)encodingProperties["System.Audio.SampleRate"];
uint channelCount = (uint)encodingProperties["System.Audio.ChannelCount"];
uint bitRate = (uint)encodingProperties["System.Audio.EncodingBitrate"];
/*
* 44100 2 128000
* 44100 2 171896 music: 00:03:33.2114285
* 44100 2 130000 music: 00:00:30.0930000
* SampleRate/SamplesPerSec
* Stereo/Channels
* SR*SO*SS/BA
*
* 130.3 16 2
* DataRate
* SampleSize/BitsPerSample
* BlockAlign
*/
// var audiodesc = new AudioStreamDescriptor(AudioEncodingProperties.CreateMp3(44100, 2, 128000));
var audiodesc = new AudioStreamDescriptor(AudioEncodingProperties.CreateMp3(sampleRate, channelCount, bitRate));
var c = new MediaStreamSource(audiodesc);
c.Duration = mp3FileProperties.Duration;
c.CanSeek = true;
Debug.WriteLine("music: " + c.Duration);
Debug.WriteLine(mp3FileProperties.Title + " " + sampleRate + " " + channelCount + " " + bitRate);
UInt32 sampleSize = 300; //每一段
TimeSpan sampleDuration = new TimeSpan(0, 0, 0, 0, 70); //每一段进度条移动距离
ulong byteOffset = 0;
TimeSpan timeOffset = new TimeSpan(0);
c.Starting += (s, e) => {
Debug.WriteLine("==Starting==");
MediaStreamSourceStartingRequest request = e.Request;
if ((request.StartPosition != null) && request.StartPosition.Value <= c.Duration)
{
UInt64 sampleOffset = (UInt64)request.StartPosition.Value.Ticks / (UInt64)sampleDuration.Ticks;
timeOffset = new TimeSpan((long)sampleOffset * sampleDuration.Ticks);
byteOffset = sampleOffset * sampleSize;
}
request.SetActualStartPosition(timeOffset);
};
c.SampleRequested += async(s, e) => {
//Debug.WriteLine(timeOffset);
var deferal = e.Request.GetDeferral();
if (byteOffset + sampleSize <= stream.Size)
{
Debug.WriteLine(sampleSize + " " + timeOffset);
var sample = await MediaStreamSample.CreateFromStreamAsync(stream.GetInputStreamAt(byteOffset), sampleSize, timeOffset); //每一段的数据大小
sample.Duration = sampleDuration; //每一段进度条移动距离
sample.KeyFrame = true;
e.Request.Sample = sample;
byteOffset += sampleSize;
timeOffset = timeOffset.Add(sampleDuration);
}
deferal.Complete();
};
return(c);
}
private void OnDownloadProgessStarted(object sender, EventArgs e)
{
// initialize Parsing Variables
this.m_byteOffset = 0;
this.m_timeOffset = new TimeSpan(0);
if (this.m_audioStreamDownloader.TotalBytesToReceive > 0)
{
var stream = this.m_audioStreamDownloader.Stream;
MpegFrame mpegFrame = stream.ReadPastId3V2Tags();
AudioEncodingProperties audioProps = AudioEncodingProperties.CreateMp3((uint)mpegFrame.SamplingRate, 2, (uint)mpegFrame.Bitrate);
AudioStreamDescriptor audioDescriptor = new AudioStreamDescriptor(audioProps);
//close the MediaStreamSource and remove the MediaStreamSource event handlers
CloseMediaStreamSource(this.m_mediaStreamSource);
this.m_mediaStreamSource = new Windows.Media.Core.MediaStreamSource(audioDescriptor);
this.m_mediaStreamSource.CanSeek = true;
this.m_mediaStreamSource.Duration = this.m_currentTrack.Duration;
// hooking up the MediaStreamSource event handlers
this.m_mediaStreamSource.Starting += OnStreamSourceStarting;
this.m_mediaStreamSource.SampleRequested += OnStreamSourceSampleRequested;
this.m_mediaStreamSource.Closed += OnStreamSourceClosed;
this.m_mediaElement.SetMediaStreamSource(this.m_mediaStreamSource);
}
}
private void OnAudioStarted(object sender, NetStreamAudioStartedEventArgs args)
{
if (_IsClosed)
{
throw new Exception();
}
if (_Connection == null)
{
Debug.WriteLine("すでに閉じられたRTMP接続です");
return;
}
if (isAlreadHaveAudio)
{
return;
}
var info = args.Info;
AudioEncodingProperties prop;
if (info.Format == Mntone.Rtmp.Media.AudioFormat.Mp3)
{
prop = AudioEncodingProperties.CreateMp3(info.SampleRate, info.ChannelCount, info.Bitrate);
}
else if (info.Format == Mntone.Rtmp.Media.AudioFormat.Aac)
{
prop = AudioEncodingProperties.CreateAac(info.SampleRate, info.ChannelCount, info.Bitrate);
}
else
{
if (_MediaStreamSource != null)
{
Started?.Invoke(new NicovideoRtmpClientStartedEventArgs(_MediaStreamSource));
}
return;
}
prop.BitsPerSample = info.BitsPerSample;
var desc = new AudioStreamDescriptor(prop);
if (_MediaStreamSource != null)
{
try
{
_MediaStreamSource.AddStreamDescriptor(desc);
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
Started?.Invoke(new NicovideoRtmpClientStartedEventArgs(_MediaStreamSource));
}
else
{
CreateMediaStream(desc);
if (args.AudioOnly)
{
Started?.Invoke(new NicovideoRtmpClientStartedEventArgs(_MediaStreamSource));
}
}
isAlreadHaveAudio = true;
Debug.WriteLine($"{nameof(NicovideoRtmpClient)}: audio : id:{ClientId}");
}
public virtual MediaStreamSource OpenSource()
{
var descriptor = new AudioStreamDescriptor(EncodingProperties);
var mss = new MediaStreamSource(descriptor);
mss.Starting += MssOnStarting;
mss.SampleRequested += MssOnSampleRequested;
mss.Closed += MssOnClosed;
return mss;
}
async private void InitializeMediaStreamSource()
{
// initialize Parsing Variables
byteOffset = 0;
timeOffset = new TimeSpan(0);
// get the encoding properties of the input MP3 file
List<string> encodingPropertiesToRetrieve = new List<string>();
encodingPropertiesToRetrieve.Add("System.Audio.SampleRate");
encodingPropertiesToRetrieve.Add("System.Audio.ChannelCount");
encodingPropertiesToRetrieve.Add("System.Audio.EncodingBitrate");
IDictionary<string, object> encodingProperties = await inputMP3File.Properties.RetrievePropertiesAsync(encodingPropertiesToRetrieve);
uint sampleRate = (uint)encodingProperties["System.Audio.SampleRate"];
uint channelCount = (uint)encodingProperties["System.Audio.ChannelCount"];
uint bitRate = (uint)encodingProperties["System.Audio.EncodingBitrate"];
// get the common music properties of the input MP3 file
MusicProperties mp3FileProperties = await inputMP3File.Properties.GetMusicPropertiesAsync();
songDuration = mp3FileProperties.Duration;
// creating the AudioEncodingProperties for the MP3 file
AudioEncodingProperties audioProps = AudioEncodingProperties.CreateMp3(sampleRate, channelCount, bitRate);
// creating the AudioStreamDescriptor for the MP3 file
AudioStreamDescriptor audioDescriptor = new AudioStreamDescriptor(audioProps);
// creating the MediaStreamSource for the MP3 file
MSS = new Windows.Media.Core.MediaStreamSource(audioDescriptor);
MSS.CanSeek = true;
MSS.MusicProperties.Title = mp3FileProperties.Title;
MSS.Duration = songDuration;
// hooking up the MediaStreamSource event handlers
MSS.Starting += MSS_Starting;
MSS.SampleRequested += MSS_SampleRequested;
MSS.Closed += MSS_Closed;
mediaPlayer.SetMediaStreamSource(MSS);
rootPage.NotifyUser("MediaStreamSource created and set as source", NotifyType.StatusMessage);
}
