private MediaStreamSource GetMediaStreamSource(IMediaStreamDescriptor videoStreamDescriptor)
{
var mediaStreamSource = new MediaStreamSource(videoStreamDescriptor)
{
BufferTime = TimeSpan.FromSeconds(0)
};
mediaStreamSource.Starting += OnStart;
mediaStreamSource.SampleRequested += OnSampleRequested;
return(mediaStreamSource);
}
private void CreateMediaStream(IMediaStreamDescriptor descriptor)
{
// Close();
if (_MediaStreamSource != null)
{
throw new Exception();
}
_MediaStreamSource = new MediaStreamSource(descriptor);
_MediaStreamSource.BufferTime = new TimeSpan(2 * 10000000);
_MediaStreamSource.Duration = TimeSpan.MaxValue;
_MediaStreamSource.Starting += OnStarting;
_MediaStreamSource.SampleRequested += OnSampleRequested;
Debug.WriteLine($"RTMP : {ClientId} media stream created.");
}
async void OpenFlvFile(StorageFile file)
{
long offset = 0;
FlvFile flvFile = null;
var randomStream = await file.OpenAsync(Windows.Storage.FileAccessMode.Read);
mediaStreamFileSource = flvFile = new FlvFile(randomStream.AsStream(), ref offset)
{
Path = file.Path
};
//에러 체크 (익셉션 발생)
if (ValidateCodecForFlv(flvFile))
{
//미디어 타입 설정
CurrentMediaInfo.MediaType = MediaType.FlashVideo;
//H264 NalUnit Header 생성
SetNalUnitParameterSets(flvFile.FlvFileBody.VideoInfoFlvTag);
//비디오/오디오 파일의 기술설명자 생성
IMediaStreamDescriptor videoDescriptor = GetFlvVideoDescriptor(flvFile.FlvFileBody.ScriptTageList);
IMediaStreamDescriptor audioDescriptor = GetFlvAudioDescriptor(flvFile.FlvFileBody.AudioInfoFlvTag);
//미디어 스트림 소스 생성
MediaStreamSource flvStreamSource = new MediaStreamSource(videoDescriptor, audioDescriptor);
//기본 속성 설정
var value = flvFile.FlvFileBody.ScriptTageList.FirstOrDefault().ScriptData.Values[1].Value;
flvStreamSource.Duration = TimeSpan.FromSeconds(double.Parse(((value as ScriptObject)["duration"]).ToString(), Settings.NumberFormat));
flvStreamSource.CanSeek = true;
//이벤트 등록
flvStreamSource.VideoProperties.Title = CurrentMediaInfo.Title;
flvStreamSource.Starting += flvStreamSource_Starting;
flvStreamSource.SampleRequested += flvStreamSource_SampleRequested;
flvStreamSource.Closed += flvStreamSource_Closed;
//플레이어 기본 설정 및 스트림 전달
this.SetMediaStreamSource(flvStreamSource);
//FVL 탐색용 데이터 준비
PrepareSeekForFlv(flvFile);
}
}
public FrameBufferData GetFrameData(IMediaStreamDescriptor descriptor)
{
if (descriptor is VideoStreamDescriptor)
{
if (VideoFrameQueue.Count == 0)
{
ReadBlock(MediaTypes.Video);
}
return(VideoFrameQueue.Dequeue());
}
else if (descriptor is AudioStreamDescriptor)
{
if (AudioFrameQueue.Count == 0)
{
ReadBlock(MediaTypes.Audio);
}
return(AudioFrameQueue.Dequeue());
}
return(FrameBufferData.Empty);
}
public WinRtStreamState(string name, ContentType contentType, IStreamSource streamSource, IMediaStreamDescriptor descriptor)
{
if (null == name)
throw new ArgumentNullException(nameof(name));
if (null == contentType)
throw new ArgumentNullException(nameof(contentType));
if (null == streamSource)
throw new ArgumentNullException(nameof(streamSource));
if (null == descriptor)
throw new ArgumentNullException(nameof(descriptor));
_name = name;
_contentType = contentType;
_streamSource = streamSource;
Descriptor = descriptor;
var pool = _contentType.Kind == ContentKind.Video
? new WinRtBufferPool(1024, 4096, 16 * 1024, 64 * 1024)
: new WinRtBufferPool(512, 1024, 2048, 8 * 1024);
_pool = pool;
TypedEventHandler<MediaStreamSample, object> freeBuffer = null;
freeBuffer = (sender, args) =>
{
var buffer = sender.Buffer;
if (null != buffer)
pool.Free(buffer);
sender.Processed -= freeBuffer;
};
_freeBuffer = freeBuffer;
}
