Boolean LiveAMRAudioRTPSink::sourceIsCompatibleWithUs( MediaSource& source )
{
// Our source must be an AMR audio source:
if (!source.isAMRAudioSource()) return False;
// Also, the source must be wideband iff we asked for this:
LiveAMRAudioDeviceSource& amrSource = (LiveAMRAudioDeviceSource&)source;
if ((amrSource.isWideband()^sourceIsWideband()) != 0) return False;
// Also, the source must have the same number of channels that we
// specified. (It could, in principle, have more, but we don't
// support that.)
if (amrSource.numChannels() != numChannels()) return False;
// Also, because in our current implementation we output only one
// frame in each RTP packet, this means that for multi-channel audio,
// each 'frame-block' will be split over multiple RTP packets, which
// may violate the spec. Warn about this:
if (amrSource.numChannels() > 1) {
envir() << "AMRAudioRTPSink: Warning: Input source has " << amrSource.numChannels()
<< " audio channels. In the current implementation, the multi-frame frame-block will be split over multiple RTP packets\n";
}
return True;
}
Boolean AMRAudioFileSink::sourceIsCompatibleWithUs(MediaSource& source) {
// The input source must be a AMR Audio source:
return source.isAMRAudioSource();
}