internal static bool Deserialize(Stream raw, StreamCapabilities _streamCapabilities)
{
var reader = new N2HBinaryReader(raw);
//var length = raw.GetAvaliableByteCounts();
//if (length < 28)
//{
// Logger.FATAL("Not enough data");
// return false;
//}
var ver = reader.ReadUInt64();
if (ver != Utils.__STREAM_CAPABILITIES_VERSION)
{
Logger.FATAL("Invalid stream capabilities version. Wanted: {0}; Got: {1}",
Utils.__STREAM_CAPABILITIES_VERSION, ver);
return(false);
}
_streamCapabilities.Clear();
_streamCapabilities.VideoCodecId = (VideoCodec)reader.ReadByte();
_streamCapabilities.AudioCodecId = (AudioCodec)reader.ReadByte();
_streamCapabilities.BandwidthHint = reader.ReadUInt32();
if (_streamCapabilities.VideoCodecId == VideoCodec.H264 && !VideoAvc.Deserialize(raw, out _streamCapabilities.Avc))
{
Logger.FATAL("Unable to deserialize avc");
return(false);
}
if (_streamCapabilities.AudioCodecId == AudioCodec.Aac &&
!AudioAac.Deserialize(raw, out _streamCapabilities.Aac))
{
Logger.FATAL("Unable to deserialize aac");
return(false);
}
return(true);
}
/// <summary>
/// Determines if a stream supports a given set of operations
/// </summary>
/// <param name="stream">The stream to validate</param>
/// <param name="requiredCapabilities">Flags that specify the capabilities to validate</param>
public static void ValidateCapabilities(this Stream stream, StreamCapabilities requiredCapabilities)
{
StreamCapabilities missingCapabilities = 0;
if (!stream.CanRead && ((requiredCapabilities & StreamCapabilities.Read) == StreamCapabilities.Read))
missingCapabilities |= StreamCapabilities.Read;
if (!stream.CanWrite && ((requiredCapabilities & StreamCapabilities.Write) == StreamCapabilities.Write))
missingCapabilities |= StreamCapabilities.Write;
if (!stream.CanSeek && ((requiredCapabilities & StreamCapabilities.Seek) == StreamCapabilities.Seek))
missingCapabilities |= StreamCapabilities.Seek;
if (!stream.CanTimeout && ((requiredCapabilities & StreamCapabilities.Timeout) == StreamCapabilities.Timeout))
missingCapabilities |= StreamCapabilities.Timeout;
if (missingCapabilities != 0)
{
var missingCapabilitiesList = missingCapabilities.GetSetFlagNames().ToList();
var errorString = new StringBuilder();
errorString.Append("This stream does not support the following requirements: ");
for (var i = 0; i < missingCapabilitiesList.Count; i++)
{
errorString.Append(missingCapabilitiesList[i]);
if (i < missingCapabilitiesList.Count - 1)
errorString.Append(", ");
}
throw new NotSupportedException(errorString.ToString());
}
}
public static bool Deserialize(string seekFilePath, StreamCapabilities capabilities)
{
using (var file = MediaFile.Initialize(seekFilePath))
{
if (file == null)
{
Logger.FATAL("Unable to open seek file {0}", seekFilePath);
return(false);
}
var length = file.Br.ReadUInt32();
if (length > 1024 * 1024)
{
Logger.FATAL("Invalid stream capabilities length in file {0}: {1}", seekFilePath, length);
return(false);
}
//var buffer = new MemoryStream();
//buffer.ReadFromRepeat(0, (int)length);
//if (!file.ReadBuffer(buffer, (int)length))
//{
// Logger.FATAL("Unable to read stream capabilities payload from file {0}",seekFilePath);
// return false;
//}
//file.Close();
if (!Deserialize(file.DataStream, capabilities))
{
Logger.FATAL("Unable to deserialize stream capabilities from file {0}", seekFilePath);
return(false);
}
}
return(true);
}
public InNetRTPStream(RtspProtocol _rtsp, StreamsManager streamsManager, string _streamName, StreamCapabilities _streamCapabilities, TimeSpan _rtcpDetectionInterval) : base(_rtsp, streamsManager, _streamName)
{
bandwidth = _streamCapabilities.BandwidthHint;
this._rtcpDetectionInterval = _rtcpDetectionInterval;
Capabilities = _streamCapabilities;
_currentNalu = Utils.Rms.GetStream();
_hasAudio = _streamCapabilities.AudioCodecId != AudioCodec.Unknown;
_hasVideo = _streamCapabilities.VideoCodecId != VideoCodec.Unknown;
_rtcpPresence = RtcpPresence.Unknown;
}
/// <summary>
/// Determines if a stream supports a given set of operations
/// </summary>
/// <param name="stream">The stream to validate</param>
/// <param name="requiredCapabilities">Flags that specify the capabilities to validate</param>
public static void ValidateCapabilities(this Stream stream, StreamCapabilities requiredCapabilities)
{
StreamCapabilities missingCapabilities = 0;
if (!stream.CanRead && ((requiredCapabilities & StreamCapabilities.Read) == StreamCapabilities.Read))
{
missingCapabilities |= StreamCapabilities.Read;
}
if (!stream.CanWrite && ((requiredCapabilities & StreamCapabilities.Write) == StreamCapabilities.Write))
{
missingCapabilities |= StreamCapabilities.Write;
}
if (!stream.CanSeek && ((requiredCapabilities & StreamCapabilities.Seek) == StreamCapabilities.Seek))
{
missingCapabilities |= StreamCapabilities.Seek;
}
if (!stream.CanTimeout && ((requiredCapabilities & StreamCapabilities.Timeout) == StreamCapabilities.Timeout))
{
missingCapabilities |= StreamCapabilities.Timeout;
}
if (missingCapabilities != 0)
{
var missingCapabilitiesList = missingCapabilities.GetSetFlagNames().ToList();
var errorString = new StringBuilder();
errorString.Append("This stream does not support the following requirements: ");
for (var i = 0; i < missingCapabilitiesList.Count; i++)
{
errorString.Append(missingCapabilitiesList[i]);
if (i < missingCapabilitiesList.Count - 1)
{
errorString.Append(", ");
}
}
throw new NotSupportedException(errorString.ToString());
}
}
public override bool Initialize(int clientSideBufferLength)
{
if (!base.Initialize(clientSideBufferLength))
{
FATAL("Unable to initialize stream");
return(false);
}
//2. Get stream capabilities
StreamCapabilities pCapabilities = Capabilities;
if (pCapabilities == null)
{
FATAL("Invalid stream capabilities");
return(false);
}
//3. Create the video builder
switch (pCapabilities.VideoCodecId)
{
case VideoCodec.H264:
_pVideoBuilder = new AVCBuilder();
break;
case VideoCodec.PassThrough:
_pVideoBuilder = new BaseBuilder();
break;
case VideoCodec.Unknown:
WARN("Invalid video stream capabilities:{0}", pCapabilities.VideoCodecId);
break;
default:
FATAL("Invalid video stream capabilities:{0}", pCapabilities.VideoCodecId);
return(false);
}
//4. Create the audio builder
switch (pCapabilities.AudioCodecId)
{
case AudioCodec.Aac:
_pAudioBuilder = new AACBuilder();
break;
case AudioCodec.Mp3:
_pAudioBuilder = new MP3Builder();
break;
case AudioCodec.PassThrough:
_pAudioBuilder = new BaseBuilder();
break;
case AudioCodec.Unknown:
WARN("Invalid audio stream capabilities: {0}", pCapabilities.AudioCodecId);
break;
default:
FATAL("Invalid audio stream capabilities: {0}", pCapabilities.AudioCodecId);
return(false);
}
_amf0Reader = new AMF0Reader(_pFile.DataStream);
_pFile.Br = _amf0Reader;
return(true);
}
public bool Initialize()
{
if (_rtsp.Application == null)
{
FATAL("RTSP protocol not yet assigned to an application");
return(false);
}
//2. Compute the bandwidthHint
uint bandwidth = 0;
if (_videoTrack != null)
{
bandwidth += _videoTrack["bandwidth"];
}
if (_audioTrack != null)
{
bandwidth += _audioTrack["bandwidth"];
}
if (bandwidth == 0)
{
bandwidth = _bandwidthHint;
}
if (_streamName == "")
{
_streamName = $"rtsp_{_rtsp.Id}";
}
if (!_rtsp.Application.StreamNameAvailable(_streamName, _rtsp))
{
FATAL("Stream name {0} already taken", _streamName);
return(false);
}
var streamCapabilities = new StreamCapabilities {
BandwidthHint = bandwidth
};
if (_videoTrack != null)
{
streamCapabilities.VideoCodecId = VideoCodec.H264;
streamCapabilities.InitVideoH264(Utils.DecodeFromBase64(_videoTrack["h264SPS"]), Utils.DecodeFromBase64(_videoTrack["h264PPS"]));
}
if (_audioTrack != null)
{
streamCapabilities.AudioCodecId = (AudioCodec)(byte)_audioTrack["codec"];
switch (streamCapabilities.AudioCodecId)
{
case AudioCodec.Aac:
var aac = Utils.DecodeFromHex(_audioTrack["codecSetup"]);
streamCapabilities.InitAudioAAC(new MemoryStream(aac), aac.Length);
streamCapabilities.Samplerate = streamCapabilities.Aac._sampleRate;
break;
default:
streamCapabilities.Samplerate = _audioTrack["rate"];
break;
}
}
_inStream = new InNetRTPStream(_rtsp, _rtsp.Application.StreamsManager, _streamName, streamCapabilities, _rtcpDetectionInterval);
var session = _rtsp.CustomParameters;
if (session["customParameters", "externalStreamConfig", "width"] != null &&
session["customParameters", "externalStreamConfig", "height"] != null)
{
StreamCapabilities cap = _inStream.Capabilities;
if (cap.VideoCodecId == VideoCodec.H264)
{
cap.Avc._widthOverride = session["customParameters", "externalStreamConfig", "width"];
cap.Avc._heightOverride = session["customParameters", "externalStreamConfig", "height"];
}
}
if (_rtpVideo != null)
{
_rtpVideo.SetStream(_inStream, false);
_rtpVideo.InboundConnectivity = this;
_rtcpVideo.SetInbboundConnectivity(this, false);
}
if (_rtpAudio != null)
{
_rtpAudio.SetStream(_inStream, true);
_rtpAudio.InboundConnectivity = this;
_rtcpAudio.SetInbboundConnectivity(this, true);
}
//7. Pickup all outbound waiting streams
var subscribedOutStreams =
_rtsp.Application.StreamsManager.GetWaitingSubscribers(
_streamName, _inStream.Type);
//FINEST("subscribedOutStreams count: %"PRIz"u", subscribedOutStreams.size());
//8. Bind the waiting subscribers
foreach (var subscribedOutStream in subscribedOutStreams)
{
subscribedOutStream.Link(_inStream);
}
return(true);
}
public Variant GetMetaData(string streamName, bool extractInnerMetadata, Variant configuration)
{
bool keyframeSeek = configuration[Defines.CONF_APPLICATION_KEYFRAMESEEK];
int clientSideBuffer = configuration[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER];
var seekGranularity = (uint)((double)configuration[Defines.CONF_APPLICATION_SEEKGRANULARITY] * 1000);
bool renameBadFiles = configuration[Defines.CONF_APPLICATION_RENAMEBADFILES];
bool externSeekGenerator = configuration[Defines.CONF_APPLICATION_EXTERNSEEKGENERATOR];
var result = Variant.Get();
result[Defines.META_REQUESTED_STREAM_NAME] = streamName;
result[Defines.CONF_APPLICATION_KEYFRAMESEEK] = keyframeSeek;
result[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER] = clientSideBuffer;
result[Defines.CONF_APPLICATION_SEEKGRANULARITY] = seekGranularity;
result[Defines.CONF_APPLICATION_RENAMEBADFILES] = renameBadFiles;
result[Defines.CONF_APPLICATION_EXTERNSEEKGENERATOR] = externSeekGenerator;
var parts = streamName.Split(':');
if (parts.Length != 1 && parts.Length != 2 && parts.Length != 5)
{
Logger.FATAL("Invalid stream name format:{0}", streamName);
return result;
}
result[Defines.META_MEDIA_TYPE] = parts.Length == 1 ? Defines.MEDIA_TYPE_LIVE_OR_FLV : parts[0].ToLower();
var searchFor = "";
switch ((string)result[Defines.META_MEDIA_TYPE])
{
case Defines.MEDIA_TYPE_LIVE_OR_FLV:
searchFor = parts[0] + ".flv";
break;
case Defines.MEDIA_TYPE_MP3:
searchFor = parts[1] + ".mp3";
break;
default:
searchFor = parts[1];
break;
}
result[Defines.META_SERVER_FILE_NAME] = searchFor;
var _mediaFolder = Application.MediaPath;
result[Defines.META_SERVER_MEDIA_DIR] = _mediaFolder;
result[Defines.META_SERVER_FULL_PATH] = searchFor[0] == Path.DirectorySeparatorChar
? (searchFor.StartsWith(_mediaFolder.NormalizePath())
? searchFor
: "")
: _mediaFolder.NormalizePath(searchFor);
if (string.IsNullOrEmpty(result[Defines.META_SERVER_FULL_PATH])) return result;
var metaPath = result[Defines.META_SERVER_FULL_PATH] + "." + Defines.MEDIA_TYPE_META;
var seekPath = result[Defines.META_SERVER_FULL_PATH] + "." + Defines.MEDIA_TYPE_SEEK;
var regenerateFiles = true;
if (File.Exists(metaPath) && File.Exists(seekPath))
{
var capabilities = new StreamCapabilities();
var originalServerFullPath = (string)result[Defines.META_SERVER_FULL_PATH];
regenerateFiles =
(new FileInfo(metaPath).LastWriteTime < new FileInfo(result[Defines.META_SERVER_FULL_PATH]).LastWriteTime)
|| (new FileInfo(seekPath).LastWriteTime < new FileInfo(result[Defines.META_SERVER_FULL_PATH]).LastWriteTime)
|| !Variant.DeserializeFromFile(metaPath, out result)
|| (!StreamCapabilities.Deserialize(seekPath, capabilities));
regenerateFiles |=
(result[Defines.META_SERVER_FULL_PATH] == null)
|| ((string)result[Defines.META_SERVER_FULL_PATH] != originalServerFullPath)
|| (result[Defines.CONF_APPLICATION_KEYFRAMESEEK] == null)
|| ((bool)result[Defines.CONF_APPLICATION_KEYFRAMESEEK] != keyframeSeek)
|| (result[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER] == null)
|| ((int)result[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER] != clientSideBuffer)
|| (result[Defines.CONF_APPLICATION_SEEKGRANULARITY] == null)
|| ((uint)result[Defines.CONF_APPLICATION_SEEKGRANULARITY] != seekGranularity);
if (regenerateFiles)
{
result[Defines.META_SERVER_FULL_PATH] = originalServerFullPath;
result[Defines.CONF_APPLICATION_KEYFRAMESEEK] = keyframeSeek;
result[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER] = clientSideBuffer;
result[Defines.CONF_APPLICATION_SEEKGRANULARITY] = seekGranularity;
}
}
if (!regenerateFiles)
{
result[Defines.META_REQUESTED_STREAM_NAME] = streamName;
return result;
}
this.Log().Info("Generate seek/meta for file {0}", result[Defines.META_SERVER_FULL_PATH]);
//8. We either have a bad meta file or we don't have it at all. Build it
if (extractInnerMetadata)
{
if (!BaseInFileStream.ResolveCompleteMetadata(ref result))
{
Logger.FATAL("Unable to get metadata. Partial result:\n{0}",
result);
return Variant.Get();
}
}
result.SerializeToFile(metaPath);
return result;
}
internal static bool Deserialize(Stream raw, StreamCapabilities _streamCapabilities)
{
var reader = new N2HBinaryReader(raw);
//var length = raw.GetAvaliableByteCounts();
//if (length < 28)
//{
// Logger.FATAL("Not enough data");
// return false;
//}
var ver = reader.ReadUInt64();
if (ver != Utils.__STREAM_CAPABILITIES_VERSION)
{
Logger.FATAL("Invalid stream capabilities version. Wanted: {0}; Got: {1}",
Utils.__STREAM_CAPABILITIES_VERSION, ver);
return false;
}
_streamCapabilities.Clear();
_streamCapabilities.VideoCodecId = (VideoCodec)reader.ReadByte();
_streamCapabilities.AudioCodecId = (AudioCodec)reader.ReadByte();
_streamCapabilities.BandwidthHint = reader.ReadUInt32();
if (_streamCapabilities.VideoCodecId == VideoCodec.H264 && !VideoAvc.Deserialize(raw, out _streamCapabilities.Avc))
{
Logger.FATAL("Unable to deserialize avc");
return false;
}
if (_streamCapabilities.AudioCodecId == AudioCodec.Aac &&
!AudioAac.Deserialize(raw, out _streamCapabilities.Aac))
{
Logger.FATAL("Unable to deserialize aac");
return false;
}
return true;
}
public static bool Deserialize(string seekFilePath, StreamCapabilities capabilities)
{
using (var file = MediaFile.Initialize(seekFilePath))
{
if (file == null)
{
Logger.FATAL("Unable to open seek file {0}", seekFilePath);
return false;
}
var length = file.Br.ReadUInt32();
if (length > 1024 * 1024)
{
Logger.FATAL("Invalid stream capabilities length in file {0}: {1}", seekFilePath, length);
return false;
}
//var buffer = new MemoryStream();
//buffer.ReadFromRepeat(0, (int)length);
//if (!file.ReadBuffer(buffer, (int)length))
//{
// Logger.FATAL("Unable to read stream capabilities payload from file {0}",seekFilePath);
// return false;
//}
//file.Close();
if (!Deserialize(file.DataStream, capabilities))
{
Logger.FATAL("Unable to deserialize stream capabilities from file {0}", seekFilePath);
return false;
}
}
return true;
}
public virtual bool Initialize(int clientSideBufferLength)
{
//1. Check to see if we have an universal seeking file
var seekFilePath = Name + "." + MEDIA_TYPE_SEEK;
if (!File.Exists(seekFilePath))
{
var meta = Variant.GetMap(new VariantMapHelper {
{ META_SERVER_FULL_PATH, Name }
});
if (!ResolveCompleteMetadata(ref meta))
{
Logger.FATAL("Unable to generate metadata");
return(false);
}
}
//2. Open the seek file
_pSeekFile = MediaFile.Initialize(seekFilePath);
if (_pSeekFile == null)
{
Logger.FATAL("Unable to open seeking file {0}", seekFilePath);
return(false);
}
//3. read stream capabilities
var streamCapabilitiesSize = _pSeekFile.Br.ReadUInt32();
//var raw = new MemoryStream();
//_pSeekFile.CopyPartTo(raw, (int)streamCapabilitiesSize);
if (streamCapabilitiesSize < 14 || !StreamCapabilities.Deserialize(_pSeekFile.DataStream, Capabilities))
{
Logger.FATAL("Unable to deserialize stream Capabilities. Please delete {0} and {1} files so they can be regenerated",
Name + "." + MEDIA_TYPE_SEEK,
Name + "." + MEDIA_TYPE_META);
return(false);
}
//4. compute offsets
_seekBaseOffset = _pSeekFile.Position;
_framesBaseOffset = _seekBaseOffset + 4;
//5. Compute the optimal window size by reading the biggest frame size
//from the seek file.
if (!_pSeekFile.SeekTo(_pSeekFile.Length - 8))
{
Logger.FATAL("Unable to seek to {0} position", _pSeekFile.Position - 8);
return(false);
}
ulong maxFrameSize = _pSeekFile.Br.ReadUInt64();
if (!_pSeekFile.SeekBegin())
{
Logger.FATAL("Unable to seek to beginning of the file");
return(false);
}
//3. Open the media file
var windowSize = (uint)maxFrameSize * 16;
//windowSize = windowSize < 65536 ? 65536 : windowSize;
//windowSize = (windowSize > (1024 * 1024)) ? (windowSize / 2) : windowSize;
_pFile = MediaFile.Initialize(Name);
//4. Read the frames count from the file
if (!_pSeekFile.SeekTo(_seekBaseOffset))
{
Logger.FATAL("Unable to seek to _seekBaseOffset: {0}", _seekBaseOffset);
return(false);
}
_totalFrames = _pSeekFile.Br.ReadUInt32();
_timeToIndexOffset = _framesBaseOffset + _totalFrames * MediaFrame.MediaFrameSize;
//5. Set the client side buffer length
_clientSideBufferLength = clientSideBufferLength;
//6. Create the timer
_pTimer = new InFileStreamTimer(this);
_pTimer.EnqueueForTimeEvent((uint)(_clientSideBufferLength - _clientSideBufferLength / 3));
//7. Done
return(true);
}
public bool Initialize()
{
if (_rtsp.Application == null)
{
FATAL("RTSP protocol not yet assigned to an application");
return false;
}
//2. Compute the bandwidthHint
uint bandwidth = 0;
if (_videoTrack != null)
{
bandwidth += _videoTrack["bandwidth"];
}
if (_audioTrack != null)
{
bandwidth += _audioTrack["bandwidth"];
}
if (bandwidth == 0)
{
bandwidth = _bandwidthHint;
}
if (_streamName == "") _streamName = $"rtsp_{_rtsp.Id}";
if (!_rtsp.Application.StreamNameAvailable(_streamName, _rtsp))
{
FATAL("Stream name {0} already taken", _streamName);
return false;
}
var streamCapabilities = new StreamCapabilities {BandwidthHint = bandwidth };
if (_videoTrack != null)
{
streamCapabilities.VideoCodecId = VideoCodec.H264;
streamCapabilities.InitVideoH264(Utils.DecodeFromBase64(_videoTrack["h264SPS"]), Utils.DecodeFromBase64(_videoTrack["h264PPS"]));
}
if (_audioTrack != null)
{
streamCapabilities.AudioCodecId = (AudioCodec) (byte) _audioTrack["codec"];
switch (streamCapabilities.AudioCodecId)
{
case AudioCodec.Aac:
var aac = Utils.DecodeFromHex(_audioTrack["codecSetup"]);
streamCapabilities.InitAudioAAC(new MemoryStream(aac), aac.Length);
streamCapabilities.Samplerate = streamCapabilities.Aac._sampleRate;
break;
default:
streamCapabilities.Samplerate = _audioTrack["rate"];
break;
}
}
_inStream = new InNetRTPStream(_rtsp, _rtsp.Application.StreamsManager,_streamName, streamCapabilities, _rtcpDetectionInterval);
var session = _rtsp.CustomParameters;
if (session["customParameters", "externalStreamConfig", "width"] != null &&
session["customParameters", "externalStreamConfig", "height"] != null)
{
StreamCapabilities cap = _inStream.Capabilities;
if(cap.VideoCodecId == VideoCodec.H264)
{
cap.Avc._widthOverride = session["customParameters", "externalStreamConfig", "width"];
cap.Avc._heightOverride = session["customParameters", "externalStreamConfig", "height"];
}
}
if (_rtpVideo != null)
{
_rtpVideo.SetStream(_inStream, false);
_rtpVideo.InboundConnectivity = this;
_rtcpVideo.SetInbboundConnectivity(this,false);
}
if (_rtpAudio != null)
{
_rtpAudio.SetStream(_inStream,true);
_rtpAudio.InboundConnectivity = this;
_rtcpAudio.SetInbboundConnectivity(this,true);
}
//7. Pickup all outbound waiting streams
var subscribedOutStreams =
_rtsp.Application.StreamsManager.GetWaitingSubscribers(
_streamName, _inStream.Type);
//FINEST("subscribedOutStreams count: %"PRIz"u", subscribedOutStreams.size());
//8. Bind the waiting subscribers
foreach (var subscribedOutStream in subscribedOutStreams)
{
subscribedOutStream.Link(_inStream);
}
return true;
}
public Variant GetMetaData(string streamName, bool extractInnerMetadata, Variant configuration)
{
bool keyframeSeek = configuration[Defines.CONF_APPLICATION_KEYFRAMESEEK];
int clientSideBuffer = configuration[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER];
var seekGranularity = (uint)((double)configuration[Defines.CONF_APPLICATION_SEEKGRANULARITY] * 1000);
bool renameBadFiles = configuration[Defines.CONF_APPLICATION_RENAMEBADFILES];
bool externSeekGenerator = configuration[Defines.CONF_APPLICATION_EXTERNSEEKGENERATOR];
var result = Variant.Get();
result[Defines.META_REQUESTED_STREAM_NAME] = streamName;
result[Defines.CONF_APPLICATION_KEYFRAMESEEK] = keyframeSeek;
result[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER] = clientSideBuffer;
result[Defines.CONF_APPLICATION_SEEKGRANULARITY] = seekGranularity;
result[Defines.CONF_APPLICATION_RENAMEBADFILES] = renameBadFiles;
result[Defines.CONF_APPLICATION_EXTERNSEEKGENERATOR] = externSeekGenerator;
var parts = streamName.Split(':');
if (parts.Length != 1 && parts.Length != 2 && parts.Length != 5)
{
Logger.FATAL("Invalid stream name format:{0}", streamName);
return(result);
}
result[Defines.META_MEDIA_TYPE] = parts.Length == 1 ? Defines.MEDIA_TYPE_LIVE_OR_FLV : parts[0].ToLower();
var searchFor = "";
switch ((string)result[Defines.META_MEDIA_TYPE])
{
case Defines.MEDIA_TYPE_LIVE_OR_FLV:
searchFor = parts[0] + ".flv";
break;
case Defines.MEDIA_TYPE_MP3:
searchFor = parts[1] + ".mp3";
break;
default:
searchFor = parts[1];
break;
}
result[Defines.META_SERVER_FILE_NAME] = searchFor;
var _mediaFolder = Application.MediaPath;
result[Defines.META_SERVER_MEDIA_DIR] = _mediaFolder;
result[Defines.META_SERVER_FULL_PATH] = searchFor[0] == Path.DirectorySeparatorChar
? (searchFor.StartsWith(_mediaFolder.NormalizePath())
? searchFor
: "")
: _mediaFolder.NormalizePath(searchFor);
if (string.IsNullOrEmpty(result[Defines.META_SERVER_FULL_PATH]))
{
return(result);
}
var metaPath = result[Defines.META_SERVER_FULL_PATH] + "." + Defines.MEDIA_TYPE_META;
var seekPath = result[Defines.META_SERVER_FULL_PATH] + "." + Defines.MEDIA_TYPE_SEEK;
var regenerateFiles = true;
if (File.Exists(metaPath) && File.Exists(seekPath))
{
var capabilities = new StreamCapabilities();
var originalServerFullPath = (string)result[Defines.META_SERVER_FULL_PATH];
regenerateFiles =
(new FileInfo(metaPath).LastWriteTime < new FileInfo(result[Defines.META_SERVER_FULL_PATH]).LastWriteTime) ||
(new FileInfo(seekPath).LastWriteTime < new FileInfo(result[Defines.META_SERVER_FULL_PATH]).LastWriteTime) ||
!Variant.DeserializeFromFile(metaPath, out result) ||
(!StreamCapabilities.Deserialize(seekPath, capabilities));
regenerateFiles |=
(result[Defines.META_SERVER_FULL_PATH] == null) ||
((string)result[Defines.META_SERVER_FULL_PATH] != originalServerFullPath) ||
(result[Defines.CONF_APPLICATION_KEYFRAMESEEK] == null) ||
((bool)result[Defines.CONF_APPLICATION_KEYFRAMESEEK] != keyframeSeek) ||
(result[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER] == null) ||
((int)result[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER] != clientSideBuffer) ||
(result[Defines.CONF_APPLICATION_SEEKGRANULARITY] == null) ||
((uint)result[Defines.CONF_APPLICATION_SEEKGRANULARITY] != seekGranularity);
if (regenerateFiles)
{
result[Defines.META_SERVER_FULL_PATH] = originalServerFullPath;
result[Defines.CONF_APPLICATION_KEYFRAMESEEK] = keyframeSeek;
result[Defines.CONF_APPLICATION_CLIENTSIDEBUFFER] = clientSideBuffer;
result[Defines.CONF_APPLICATION_SEEKGRANULARITY] = seekGranularity;
}
}
if (!regenerateFiles)
{
result[Defines.META_REQUESTED_STREAM_NAME] = streamName;
return(result);
}
this.Log().Info("Generate seek/meta for file {0}", result[Defines.META_SERVER_FULL_PATH]);
//8. We either have a bad meta file or we don't have it at all. Build it
if (extractInnerMetadata)
{
if (!BaseInFileStream.ResolveCompleteMetadata(ref result))
{
Logger.FATAL("Unable to get metadata. Partial result:\n{0}",
result);
return(Variant.Get());
}
}
result.SerializeToFile(metaPath);
return(result);
}
private string GetAudioTrack(RtspProtocol pFrom, StreamCapabilities pCapabilities)
{
pFrom.CustomParameters["audioTrackId"] = "1"; //md5(format("A%u%s",pFrom->GetId(), STR(generateRandomString(4))), true);
string result = "";
switch (pCapabilities.AudioCodecId)
{
case AudioCodec.Aac:
result += "m=audio 0 RTP/AVP 96\r\n";
result += "a=recvonly\r\n";
result += $"a=rtpmap:96 mpeg4-generic/{pCapabilities.Aac._sampleRate}/2\r\n";
//FINEST("result: %s", STR(result));
result += "a=control:trackID="
+ pFrom.CustomParameters["audioTrackId"] + "\r\n";
//rfc3640-fmtp-explained.txt Chapter 4.1
result +=
$"a=fmtp:96 streamtype=5; profile-level-id=15; mode=AAC-hbr; {pCapabilities.Aac.GetRTSPFmtpConfig()}; SizeLength=13; IndexLength=3; IndexDeltaLength=3;\r\n";
break;
case AudioCodec.Speex:
result += "m=audio 0 RTP/AVP 98\r\n";
result += "a=rtpmap:98 speex/16000\r\n";
//FINEST("result: %s", STR(result));
result += "a=control:trackID="+ pFrom.CustomParameters["audioTrackId"] + "\r\n";
//http://www.rfc-editor.org/rfc/rfc5574.txt
result +="a=fmtp:98 mode=\"7,any\"\r\n";
break;
default:
WARN("Unsupported audio codec: {0}", pCapabilities.AudioCodecId);
break;
}
return result;
}
private string GetVideoTrack(RtspProtocol pFrom, StreamCapabilities pCapabilities)
{
pFrom.CustomParameters["videoTrackId"] = "2"; //md5(format("V%u%s",pFrom->GetId(), STR(generateRandomString(4))), true);
var sw = new StringBuilder();
if (pCapabilities.VideoCodecId == VideoCodec.H264)
{
sw.AppendLine("m=video 0 RTP/AVP 97");
sw.AppendLine("a=recvonly");
sw.Append("a=control:trackID=");
sw.AppendLine(pFrom.CustomParameters["videoTrackId"]);
sw.AppendLine("a=rtpmap:97 H264/90000");
sw.Append("a=fmtp:97 profile-level-id=");
sw.Append($"{pCapabilities.Avc.SPS[1]:X2}{pCapabilities.Avc.SPS[2]:X2}{pCapabilities.Avc.SPS[3]:X2}");
sw.Append("; packetization-mode=1; sprop-parameter-sets=");
sw.Append(Convert.ToBase64String(pCapabilities.Avc.SPS) + ",");
sw.AppendLine(Convert.ToBase64String(pCapabilities.Avc.PPS));
}
else
{
WARN("Unsupported video codec: %s", pCapabilities.VideoCodecId);
}
return sw.ToString();
}