public override void RecordFrame(RecordingSession session)
{
if (m_Inputs.Count != 1)
{
throw new Exception("Unsupported number of sources");
}
var input = (BaseRenderTextureInput)m_Inputs[0];
var frame = input.outputRT;
if (!m_ctx)
{
var webmSettings = m_Settings.m_WebmEncoderSettings;
webmSettings.video = true;
webmSettings.audio = false;
webmSettings.videoWidth = frame.width;
webmSettings.videoHeight = frame.height;
if (m_Settings.m_AutoSelectBR)
{
webmSettings.videoTargetBitrate = (int)(((frame.width * frame.height / 1000.0) / 245 + 1.16) * (webmSettings.videoTargetFramerate / 48.0 + 0.5) * 1000000);
}
webmSettings.videoTargetFramerate = (int)Math.Ceiling(m_Settings.frameRate);
m_ctx = fcAPI.fcWebMCreateContext(ref webmSettings);
var path = m_Settings.fileNameGenerator.BuildAbsolutePath(session);
m_stream = fcAPI.fcCreateFileStream(path);
fcAPI.fcWebMAddOutputStream(m_ctx, m_stream);
}
fcAPI.fcLock(frame, TextureFormat.RGB24, (data, fmt) =>
{
fcAPI.fcWebMAddVideoFramePixels(m_ctx, data, fmt, session.recorderTime);
});
}
public override void Initialize(object config, string outPath)
{
if (!fcAPI.fcWebMIsSupported())
{
Debug.LogError("WebM encoder is not available on this platform.");
return;
}
m_config = (fcAPI.fcWebMConfig)config;
if (m_config.audio && m_config.audioEncoder == fcAPI.fcWebMAudioEncoder.Opus)
{
var sampleRate = AudioSettings.outputSampleRate;
if (sampleRate != 8000 && sampleRate != 12000 && sampleRate != 16000 && sampleRate != 24000 && sampleRate != 48000)
{
Debug.LogError("Current output sample rate is " + sampleRate + ". It must be 8000, 12000, 16000, 24000 or 48000 to use Opus audio encoder. Fallback to Vorbis.");
m_config.audioEncoder = fcAPI.fcWebMAudioEncoder.Vorbis;
}
}
m_config.audioSampleRate = AudioSettings.outputSampleRate;
m_config.audioNumChannels = fcAPI.fcGetNumAudioChannels();
m_ctx = fcAPI.fcWebMCreateContext(ref m_config);
var path = outPath + ".webm";
var stream = fcAPI.fcCreateFileStream(path);
fcAPI.fcWebMAddOutputStream(m_ctx, stream);
stream.Release();
}
