[OpenSIPStack] How can I add a mediaformat to a soundchannel ?

[Claudio M. <cmi...@gm...>]

Hi,

I was working with sound channels and had a problem: How can I add a media
format to it ?
And How can I recognise the sound devices that are present in the computer ?

I have tried the following solutions. But it did not work. Any guess ?

Thanks in advance.


Claudio Miceli de Farias

PSoundChannel * MMedia::CreateSoundChannel(const OpalMediaFormat &
mediaFormat,
                                                     BOOL isSource)
        {
          PString deviceName;
          PSoundChannel * soundChannel = new PSoundChannel();

          if (isSource)
            deviceName = soundChannel->GetDefaultDevice(
PSoundChannel::Recorder );
          else
            deviceName = soundChannel->GetDefaultDevice(
PSoundChannel::Player );

          if (isSource) cout << "\n record device: " << deviceName << "\n";

          if (soundChannel->Open(deviceName,
                                 isSource ? PSoundChannel::Recorder
                                          : PSoundChannel::Player,
                                 1, mediaFormat.GetClockRate(), 16)) {
            PTRACE(1, "PCSS\tOpened sound channel \"" << deviceName
                   << "\" for " << (isSource ? "record" : "play") <<
"ing."); //nao estah entrando aqui
            return soundChannel;
          }
          return soundChannel;
        }



OpalMediaStream * MMedia::CreateMediaStream(const OpalMediaFormat &
mediaFormat,
                                                                unsigned
sessionID,BOOL isSource)
        {
         PSoundChannel * soundChannel = CreateSoundChannel(mediaFormat,
isSource);
          if (soundChannel == NULL)
            return NULL;

          return new OpalAudioMediaStream(mediaFormat, sessionID, isSource,
soundChannelBuffers, soundChannel);
        }

OpalAudioFormat::OpalAudioFormat (OPAL_G711_ULAW_64K,
RTP_DataFrame::PCMU,           "PCMU",  8, 8,  240, 30, 256);
mediaFormats+= OpalMediaFormat::OpalMediaFormat(OPAL_G711_ULAW_64K);