static ByteBuffer EncodeVideoData(RtmpContext context, VideoData videoData) {
ByteBuffer output = videoData.Data;
return output;
}
/// <summary>
/// Play stream
/// </summary>
/// <param name="item">Playlist item.</param>
/// <param name="withReset">Send reset status before playing.</param>
public void Play(IPlayItem item, bool withReset) {
lock (this.SyncRoot) {
// Can't play if state is not stopped
if (_playlistSubscriberStream.State != State.STOPPED)
throw new IllegalStateException();
if (_msgIn != null) {
_msgIn.Unsubscribe(this);
_msgIn = null;
}
// Play type determination
// http://livedocs.adobe.com/flex/3/langref/flash/net/NetStream.html#play%28%29
// The start time, in seconds. Allowed values are -2, -1, 0, or a positive number.
// The default value is -2, which looks for a live stream, then a recorded stream,
// and if it finds neither, opens a live stream.
// If -1, plays only a live stream.
// If 0 or a positive number, plays a recorded stream, beginning start seconds in.
//
// -2: live then recorded, -1: live, >=0: recorded
int type = (int)(item.Start / 1000);
// see if it's a published stream
IScope thisScope = _playlistSubscriberStream.Scope;
string itemName = item.Name;
//check for input and type
InputType sourceType = _providerService.LookupProviderInputType(thisScope, itemName);
bool isPublishedStream = sourceType == InputType.Live;
bool isFileStream = sourceType == InputType.Vod;
bool sendNotifications = true;
// decision: 0 for Live, 1 for File, 2 for Wait, 3 for N/A
switch (type) {
case -2:
if (isPublishedStream)
_playDecision = 0;
else if (isFileStream)
_playDecision = 1;
else
_playDecision = 2;
break;
case -1:
if (isPublishedStream)
_playDecision = 0;
else
_playDecision = 2;
break;
default:
if (isFileStream)
_playDecision = 1;
break;
}
if (log.IsDebugEnabled)
log.Debug(string.Format("Play decision is {0} (0=Live, 1=File, 2=Wait, 3=N/A)", _playDecision));
_currentItem = item;
long itemLength = item.Length;
switch (_playDecision) {
case 0:
//get source input without create
_msgIn = _providerService.GetLiveProviderInput(thisScope, itemName, false);
// Drop all frames up to the next keyframe
_videoFrameDropper.Reset(FrameDropperState.SEND_KEYFRAMES_CHECK);
if (_msgIn is IBroadcastScope) {
// Send initial keyframe
IClientBroadcastStream stream = (_msgIn as IBroadcastScope).GetAttribute(Constants.BroadcastScopeStreamAttribute) as IClientBroadcastStream;
if (stream != null && stream.CodecInfo != null) {
IVideoStreamCodec videoCodec = stream.CodecInfo.VideoCodec;
if (videoCodec != null) {
if (withReset) {
SendReset();
SendResetStatus(item);
SendStartStatus(item);
}
sendNotifications = false;
//send decoder configuration if it exists
ByteBuffer config = videoCodec.GetDecoderConfiguration();
if (config != null) {
VideoData conf = new VideoData(config);
try {
conf.Timestamp = 0;
RtmpMessage confMsg = new RtmpMessage();
confMsg.body = conf;
_msgOut.PushMessage(confMsg);
} finally {
//conf.release();
}
}
//Check for a keyframe to send
ByteBuffer keyFrame = videoCodec.GetKeyframe();
if (keyFrame != null) {
VideoData video = new VideoData(keyFrame);
try {
video.Timestamp = 0;
RtmpMessage videoMsg = new RtmpMessage();
videoMsg.body = video;
_msgOut.PushMessage(videoMsg);
// Don't wait for keyframe
_videoFrameDropper.Reset();
} finally {
//video.release();
}
}
}
}
}
_msgIn.Subscribe(this, null);
break;
case 2:
//get source input with create
_msgIn = _providerService.GetLiveProviderInput(thisScope, itemName, true);
_msgIn.Subscribe(this, null);
_waiting = true;
if (type == -1 && itemLength >= 0) {
//log.debug("Creating wait job");
// Wait given timeout for stream to be published
PlaylistSubscriberStreamJob1 job = new PlaylistSubscriberStreamJob1(this, itemName);
_waitLiveJob = _schedulingService.AddScheduledOnceJob(item.Length, job);
} else if (type == -2) {
//log.debug("Creating wait job");
// Wait x seconds for the stream to be published
PlaylistSubscriberStreamJob2 job = new PlaylistSubscriberStreamJob2(this, itemName);
_waitLiveJob = _schedulingService.AddScheduledOnceJob(15000, job);
} else {
ConnectToProvider(itemName);
}
break;
case 1:
_msgIn = _providerService.GetVODProviderInput(thisScope, itemName);
if (_msgIn == null) {
SendStreamNotFoundStatus(_currentItem);
throw new StreamNotFoundException(itemName);
}
if (!_msgIn.Subscribe(this, null)) {
log.Error("Input source subscribe failed");
}
break;
default:
SendStreamNotFoundStatus(_currentItem);
throw new StreamNotFoundException(itemName);
}
_playlistSubscriberStream.State = State.PLAYING;
IMessage msg = null;
_streamOffset = 0;
_streamStartTS = -1;
if (_playDecision == 1) {
if (withReset) {
ReleasePendingMessage();
}
SendVODInitCM(_msgIn, item);
// Don't use pullAndPush to detect IOExceptions prior to sending NetStream.Play.Start
if (item.Start > 0) {
_streamOffset = SendVODSeekCM(_msgIn, (int)item.Start);
// We seeked to the nearest keyframe so use real timestamp now
if (_streamOffset == -1) {
_streamOffset = (int)item.Start;
}
}
msg = _msgIn.PullMessage();
if (msg is RtmpMessage) {
IRtmpEvent body = ((RtmpMessage)msg).body;
if (itemLength == 0) {
// Only send first video frame
body = ((RtmpMessage)msg).body;
while (body != null && !(body is VideoData)) {
msg = _msgIn.PullMessage();
if (msg == null)
break;
if (msg is RtmpMessage)
body = ((RtmpMessage)msg).body;
}
}
if (body != null) {
// Adjust timestamp when playing lists
body.Timestamp = body.Timestamp + _timestampOffset;
}
}
}
if (sendNotifications) {
if (withReset) {
SendReset();
SendResetStatus(item);
}
SendStartStatus(item);
if (!withReset) {
SendSwitchStatus();
}
}
if (msg != null) {
SendMessage((RtmpMessage)msg);
}
_playlistSubscriberStream.NotifyItemPlay(_currentItem, !_isPullMode);
if (withReset) {
long currentTime = System.Environment.TickCount;
_playbackStart = currentTime - _streamOffset;
_nextCheckBufferUnderrun = currentTime + _bufferCheckInterval;
if (_currentItem.Length != 0) {
EnsurePullAndPushRunning();
}
}
}
}
public void PushMessage(IPipe pipe, IMessage message) {
if (message is ResetMessage) {
_timeStamper.Reset();
} else if (message is StatusMessage) {
StatusMessage statusMsg = message as StatusMessage;
_data.SendStatus(statusMsg.body as StatusASO);
} else if (message is RtmpMessage) {
// Make sure chunk size has been sent
if (!_chunkSizeSent)
SendChunkSize();
RtmpMessage rtmpMsg = message as RtmpMessage;
IRtmpEvent msg = rtmpMsg.body;
int eventTime = msg.Timestamp;
#if !SILVERLIGHT
if (log.IsDebugEnabled)
log.Debug(string.Format("Message timestamp: {0}", eventTime));
#endif
if (eventTime < 0) {
#if !SILVERLIGHT
if (log.IsDebugEnabled)
log.Debug(string.Format("Message has negative timestamp: {0}", eventTime));
#endif
return;
}
byte dataType = msg.DataType;
// Create a new header for the consumer
RtmpHeader header = _timeStamper.GetTimeStamp(dataType, eventTime);
switch (msg.DataType) {
case Constants.TypeStreamMetadata:
Notify notify = new Notify((msg as Notify).Data);
notify.Header = header;
notify.Timestamp = header.Timer;
_data.Write(notify);
break;
case Constants.TypeFlexStreamEnd:
// TODO: okay to send this also to AMF0 clients?
FlexStreamSend send = new FlexStreamSend((msg as Notify).Data);
send.Header = header;
send.Timestamp = header.Timer;
_data.Write(send);
break;
case Constants.TypeVideoData:
VideoData videoData = new VideoData((msg as VideoData).Data);
videoData.Header = header;
videoData.Timestamp = header.Timer;
_video.Write(videoData);
break;
case Constants.TypeAudioData:
AudioData audioData = new AudioData((msg as AudioData).Data);
audioData.Header = header;
audioData.Timestamp = header.Timer;
_audio.Write(audioData);
break;
case Constants.TypePing:
Ping ping = new Ping((msg as Ping).PingType, (msg as Ping).Value2, (msg as Ping).Value3, (msg as Ping).Value4);
ping.Header = header;
_connection.Ping(ping);
break;
case Constants.TypeBytesRead:
BytesRead bytesRead = new BytesRead((msg as BytesRead).Bytes);
bytesRead.Header = header;
bytesRead.Timestamp = header.Timer;
_connection.GetChannel((byte)2).Write(bytesRead);
break;
default:
_data.Write(msg);
break;
}
}
}
internal void RaiseNetStreamVideo(VideoData videoData) {
if (_netStreamVideoHandler != null) {
_netStreamVideoHandler(this, new NetStreamVideoEventArgs(videoData));
}
}
public IMessage PullMessage(IPipe pipe) {
lock (_syncLock) {
if (_pipe != pipe)
return null;
if (_reader == null)
Init();
if (!_reader.HasMoreTags()) {
// TODO send OOBCM to notify EOF
// Do not unsubscribe as this kills VOD seek while in buffer
// this.pipe.unsubscribe(this);
return null;
}
ITag tag = _reader.ReadTag();
IRtmpEvent msg = null;
int timestamp = tag.Timestamp;
switch (tag.DataType) {
case Constants.TypeAudioData:
msg = new AudioData(tag.Body);
break;
case Constants.TypeVideoData:
msg = new VideoData(tag.Body);
break;
case Constants.TypeInvoke:
msg = new Invoke(tag.Body);
break;
case Constants.TypeNotify:
msg = new Notify(tag.Body);
break;
case Constants.TypeFlexStreamEnd:
msg = new FlexStreamSend(tag.Body);
break;
default:
log.Warn("Unexpected type " + tag.DataType);
msg = new Unknown(tag.DataType, tag.Body);
break;
}
msg.Timestamp = timestamp;
RtmpMessage rtmpMsg = new RtmpMessage();
rtmpMsg.body = msg;
return rtmpMsg;
}
}
