OpalRawMediaStream Class Reference
#include <mediastrm.h>
List of all members.
Public Member Functions |
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virtual PBoolean | ReadData (BYTE *data, PINDEX size, PINDEX &length) |
virtual PBoolean | WriteData (const BYTE *data, PINDEX length, PINDEX &written) |
PChannel * | GetChannel () |
bool | SetChannel (PChannel *channel, bool autoDelete=true) |
virtual PBoolean | Close () |
virtual unsigned | GetAverageSignalLevel () |
Protected Member Functions |
void | CollectAverage (const BYTE *buffer, PINDEX size) |
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| OpalRawMediaStream (OpalConnection &conn, const OpalMediaFormat &mediaFormat, unsigned sessionID, bool isSource, PChannel *channel, bool autoDelete) |
| ~OpalRawMediaStream () |
Protected Attributes |
PChannel * | m_channel |
bool | m_autoDelete |
PMutex | m_channelMutex |
PBYTEArray | m_silence |
PUInt64 | m_averageSignalSum |
unsigned | m_averageSignalSamples |
PMutex | m_averagingMutex |
Detailed Description
This class describes a media stream that transfers PCM-16 data to/from a PChannel.
Constructor & Destructor Documentation
OpalRawMediaStream::OpalRawMediaStream |
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OpalConnection & |
conn, |
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const OpalMediaFormat & |
mediaFormat, |
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unsigned |
sessionID, |
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bool |
isSource, |
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PChannel * |
channel, |
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bool |
autoDelete | |
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Construct a new media stream for channel.
- Parameters:
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| mediaFormat | Media format for stream |
| sessionID | Session number for stream |
| isSource | Is a source stream |
| channel | I/O channel to stream to/from |
| autoDelete | Automatically delete channel |
OpalRawMediaStream::~OpalRawMediaStream |
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[protected] |
Delete attached channel if autoDelete enabled.
Member Function Documentation
virtual PBoolean OpalRawMediaStream::Close |
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[virtual] |
Close the media stream.
Closes the associated PChannel.
Reimplemented from OpalMediaStream.
void OpalRawMediaStream::CollectAverage |
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const BYTE * |
buffer, |
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PINDEX |
size | |
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virtual unsigned OpalRawMediaStream::GetAverageSignalLevel |
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[virtual] |
Get average signal level in last frame.
PChannel* OpalRawMediaStream::GetChannel |
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[inline] |
Return the associated PChannel
References m_channel.
virtual PBoolean OpalRawMediaStream::ReadData |
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BYTE * |
data, |
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PINDEX |
size, |
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PINDEX & |
length | |
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Read raw media data from the source media stream. The default behaviour reads from the PChannel object.
- Parameters:
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| data | Data buffer to read to |
| size | Size of buffer |
| length | Length of data actually read |
Reimplemented from OpalMediaStream.
Reimplemented in OpalFileMediaStream.
bool OpalRawMediaStream::SetChannel |
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PChannel * |
channel, |
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bool |
autoDelete = true | |
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Set a new channel for raw PCM stream.
- Parameters:
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| channel | New channel |
| autoDelete | Auto delete channel on exit or replacement |
virtual PBoolean OpalRawMediaStream::WriteData |
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const BYTE * |
data, |
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PINDEX |
length, |
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PINDEX & |
written | |
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Write raw media data to the sink media stream. The default behaviour writes to the PChannel object.
- Parameters:
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| data | Data to write |
| length | Length of data to read. |
| written | Length of data actually written |
Reimplemented from OpalMediaStream.
Reimplemented in OpalFileMediaStream.
Member Data Documentation
The documentation for this class was generated from the following file: