private void encode()
{
try {
string sTempFileName = saveScriptToTempFile();
try {
using (AviSynthScriptEnvironment env = new AviSynthScriptEnvironment()) {
using (AviSynthClip x = env.ParseScript(m_script)) { //.OpenScriptFile(sTempFileName))
if (0 == x.SamplesCount)
{
throw new ApplicationException("Can't find audio stream!");
}
audioStreamFound();
readAudioStreamInfo(x);
audioStreamInfo(x);
const int MAX_SAMPLES_PER_ONCE = 4096;
int frameSample = 0;
int samplesRead = 0;
int frameBufferTotalSize = MAX_SAMPLES_PER_ONCE * x.ChannelsCount * x.BitsPerSample / 8;
int bytesRead = 0; //frameBufferTotalSize;
byte[] frameBuffer = new byte[frameBufferTotalSize];
bool WExtHeader = m_ChannelMask >= 0;
bool Greater4GB = m_nSizeInBytes >= (uint.MaxValue - 68);
if ((Greater4GB) && (m_HeaderType > 2))
{
m_HeaderType -= 2;
}
if (m_encoder != null)
{
createEncoderProcess(x);
}
try {
using (Stream target = getOutputStream())
{
// let's write WAV Header
if (m_sendHeader)
{
if (m_HeaderType == 1) // Useful for debug
{
if (WExtHeader)
{
raiseEvent(m_job, new EncoderCallbackEventArgs("Writing W64_EXT header to encoder's StdIn"));
}
else
{
raiseEvent(m_job, new EncoderCallbackEventArgs("Writing W64 header to encoder's StdIn"));
}
}
else if (m_HeaderType == 2)
{
if (WExtHeader)
{
raiseEvent(m_job, new EncoderCallbackEventArgs("Writing RF64_EXT header to encoder's StdIn"));
}
else
{
raiseEvent(m_job, new EncoderCallbackEventArgs("Writing RF64 header to encoder's StdIn"));
}
}
else
{
if (WExtHeader)
{
raiseEvent(m_job, new EncoderCallbackEventArgs("Writing RIFF_EXT header to encoder's StdIn"));
}
else
{
raiseEvent(m_job, new EncoderCallbackEventArgs("Writing RIFF header to encoder's StdIn"));
}
}
writeHeader(target, x);
}
raiseEvent(m_job, new EncoderCallbackEventArgs("Writing PCM data to encoder's StdIn"));
GCHandle h = GCHandle.Alloc(frameBuffer, GCHandleType.Pinned);
try {
while (frameSample < x.SamplesCount)
{
if (m_process != null)
{
if (m_process.HasExited)
{
throw new ApplicationException("Abnormal encoder termination " + m_process.ExitCode.ToString());
}
}
samplesRead = 0;
bytesRead = 0;
int nHowMany = Math.Min((int)(x.SamplesCount - frameSample), MAX_SAMPLES_PER_ONCE);
x.ReadAudio(h.AddrOfPinnedObject(), frameSample, nHowMany);
bytesRead = nHowMany * x.BytesPerSample * x.ChannelsCount;
samplesRead = nHowMany;
//setProgress((100*(double)frameSample / x.SamplesCount));
m_job.Progress = (int)(100 * (double)frameSample / x.SamplesCount);
target.Write(frameBuffer, 0, bytesRead);
if (m_process != null)
{
target.Flush();
}
frameSample += samplesRead;
Thread.Sleep(0);
}
}
finally {
h.Free();
}
//setProgress(100);
m_job.Progress = 100;
}
if (m_process != null)
{
raiseEvent(m_job, new EncoderCallbackEventArgs("Finalizing encoder"));
m_process.WaitForExit();
m_readFromStdErrThread.Join();
m_readFromStdOutThread.Join();
if (0 != m_process.ExitCode)
{
throw new ApplicationException("Abnormal encoder termination " + m_process.ExitCode.ToString());
}
}
}
finally {
if (m_process != null)
{
if (!m_process.HasExited)
{
m_process.Kill();
m_process.WaitForExit();
m_readFromStdErrThread.Join();
m_readFromStdOutThread.Join();
}
}
m_readFromStdErrThread = null;
m_readFromStdOutThread = null;
}
}
}
}
finally {
File.Delete(sTempFileName);
}
}
catch (Exception e) {
clearOutput();
if (e is ThreadAbortException)
{
raiseEvent(m_job, new EncoderCallbackEventArgs(EncoderCallbackEventArgs.EventType.Terminated));
}
else
{
raiseEvent(m_job, new EncoderCallbackEventArgs(e));
}
return;
}
raiseEvent(m_job, new EncoderCallbackEventArgs(EncoderCallbackEventArgs.EventType.Done));
}
public AviSynthClip(string func, string arg, AviSynthColorspace forceColorspace, AviSynthScriptEnvironment env)
{
_vi = new AVSDLLVideoInfo();
_avs = new IntPtr(0);
_colorSpace = AviSynthColorspace.Unknown;
_sampleType = AudioSampleType.Unknown;
if (0 != dimzon_avs_init_2(ref _avs, func, arg, ref _vi, ref _colorSpace, ref _sampleType, forceColorspace.ToString()))
{
string err = getLastError();
cleanup(false);
throw new AviSynthException(err);
}
}
