public void ChangeAudioCfg(AudioEncodeCfg aCfg)
{
try
{
_aCfg = aCfg;
if (_me != null)
{
_me.Error -= OnError;
_me.Stop();
_me.Dispose();
_me = null;
}
_me = new MicEncoder(_aCfg, OnCaptured);
_me.Error += OnError;
if (_isRuning)
{
if (IsAudioPub)
{
_me.Start();
}
}
}
catch (Exception e)
{
OnError(e);
Stop();
}
}
public MicEncoder(AudioEncodeCfg audioCfg, Action <MediaFrame> callback)
{
_audioCfg = audioCfg;
_channels = audioCfg.Channel;
_frequency = audioCfg.Frequency;
_capturer = new MicCapturer(audioCfg.MicId, _channels, _frequency, audioCfg.Samples, MicCapturer_CallBack);
if (audioCfg.encodeName.EqIgnoreCase("SPEX"))
{
_speex = new Speex(4);
}
else if (audioCfg.encodeName.EqIgnoreCase("AAC_"))
{
if (audioCfg.Params.ContainsKey("UseLastFaacImp") && FaacImp.LastFaacImp != null)
{
_faacImp = FaacImp.LastFaacImp;
_faacImp.Encode(new byte[2048]);
_faacImp.Encode(new byte[2048]);
_faacImp.Encode(new byte[2048]);
_faacImp.Encode(new byte[2048]);
_faacImp.Encode(new byte[2048]);
}
else
{
_faacImp = new FaacImp(_channels, _frequency, audioCfg.Bitrate);
}
}
_callBack = callback;
}
public MediaCapturer(VideoEncodeCfg cfgVideo, AudioEncodeCfg cfgAudio)
{
IsVideoPub = true;
IsAudioPub = true;
_vCfg = cfgVideo;
_aCfg = cfgAudio;
Init();
}
public static MediaFrame CreateAudioKeyFrame(AudioEncodeCfg cfg, long timetick, byte[] data, int offset, int size)
{
MediaFrame mFrame = CreateAudioFrame(cfg, timetick, data, offset, size);// new
// MediaFrame((byte)
// 1);
mFrame.MediaFrameVersion = 1;
mFrame.IsKeyFrame = 1;
mFrame.Frequency = cfg.Frequency;
mFrame.Channel = cfg.Channel;
mFrame.AudioFormat = (short)cfg.Format;
mFrame.Samples = (short)cfg.Samples;
mFrame.Encoder = cfg.encoder;
return(mFrame);
}
public static MediaFrame CreateAudioFrame(AudioEncodeCfg cfg, long timetick, byte[] data, int offset, int size)
{
if (cfg is null)
{
throw new ArgumentNullException(nameof(cfg));
}
MediaFrame mFrame = new MediaFrame(0)
{
IsAudio = 1,
IsKeyFrame = 0,
NTimetick = timetick,
Size = size,
Offset = offset,
};
mFrame.SetData(data);
return(mFrame);
}
public void ChangeCfg(VideoEncodeCfg vCfg, AudioEncodeCfg aCfg)
{
try
{
_vCfg = vCfg;
_aCfg = aCfg;
if (_ce != null)
{
_ce.Error -= OnError;
_ce.Stop();
_ce.Dispose();
_ce = null;
}
if (_me != null)
{
_me.Error -= OnError;
_me.Stop();
_me.Dispose();
_me = null;
}
Init();
if (_isRuning)
{
if (IsVideoPub)
{
_ce.Start();
}
if (IsAudioPub)
{
_me.Start();
}
}
}
catch (Exception e)
{
OnError(e);
Stop();
}
}
