public void Process(Frame cFrameSource, Frame cFrameTarget)
{
int nResult = 0;
AVFrame cAVFrameSource = (AVFrame)Marshal.PtrToStructure(cFrameSource, typeof(AVFrame));
AVFrame cAVFrameTarget = (AVFrame)Marshal.PtrToStructure(cFrameTarget, typeof(AVFrame));
nResult = Functions.sws_scale(pContext, cAVFrameSource.data, cAVFrameSource.linesize, 0, _cFormatSource.nHeight, cAVFrameTarget.data, cAVFrameTarget.linesize);
}
public Frame(Format.Audio cFormat, Frame cFrame)
: this()
{
if (null != cFrame._aBuffer)
{
throw new NotImplementedException();
}
AVFrame cAVFrame = (AVFrame)Marshal.PtrToStructure(cFrame._pAVFrame, typeof(AVFrame));
if (0 < cAVFrame.width || 0 < cAVFrame.height || 1 > cAVFrame.nb_samples)
{
throw new NotImplementedException();
}
int nLineSize = cFormat.nBitsPerSample / 8 * cAVFrame.nb_samples;
//int nReminder = nLineSize % 64;
//if(0 < nReminder)
// nLineSize += 64 - nReminder;
_nLength = cFormat.nChannelsQty * nLineSize;
_aBuffer = new byte[_nLength];
(new Logger()).WriteDebug4("frame format_frame: - new bytes processed! [size=" + _nLength + "]");
bool bPlanar = (1 < cAVFrame.data.Count(o => NULL != o));
if (!bPlanar)
{
nLineSize = nLength;
}
for (int nIndx = 0; cAVFrame.data.Length > nIndx; nIndx++)
{
if (NULL == cAVFrame.data[nIndx])
{
break;
}
Marshal.Copy(cAVFrame.data[nIndx], _aBuffer, nIndx * nLineSize, nLineSize);
}
Init(cFormat);
}
public void PassSamples(Format.Audio cFormat)
{
if (1 > _nLength)
{
throw new NotImplementedException();
}
AVFrame cAVFrame = (AVFrame)Marshal.PtrToStructure(_pAVFrame, typeof(AVFrame));
if (0 < cAVFrame.width || 0 < cAVFrame.height || 1 > cAVFrame.nb_samples)
{
throw new NotImplementedException();
}
int nLineSize = cFormat.nBitsPerSample / 8 * cAVFrame.nb_samples;
_nLength = cFormat.nChannelsQty * nLineSize;
if (null == _aBuffer)
{
_aBuffer = new byte[_nLength];
(new Logger()).WriteDebug("passSamples: - new bytes processed! [size=" + _nLength + "]");
}
bool bPlanar = (1 < cAVFrame.data.Count(o => NULL != o));
if (!bPlanar)
{
nLineSize = nLength;
}
for (int nIndx = 0; cAVFrame.data.Length > nIndx; nIndx++)
{
if (NULL == cAVFrame.data[nIndx])
{
break;
}
Marshal.Copy(cAVFrame.data[nIndx], _aBuffer, nIndx * nLineSize, nLineSize);
}
}
override public Frame[] Convert(Format cFormatTarget, Frame cFrameSource) //в pAVFrameSource лежат байты в формате this!!!
{
List <Frame> aRetVal = new List <Frame>();
if (null == cFormatTarget || !(cFormatTarget is Format.Video))
{
throw new Exception("target format is null or has a wrong type");
}
Format.Video cFormatVideoTarget = (Format.Video)cFormatTarget;
try
{
if (ePixelFormat == cFormatVideoTarget.ePixelFormat && nHeight == cFormatVideoTarget.nHeight && nWidth == cFormatVideoTarget.nWidth)
{
return new Frame[] { new Frame(cFrameSource.aBytesCopy)
{
nPTS = cFrameSource.nPTS, bKeyframe = cFrameSource.bKeyframe
} }
}
;
if (eCodecID == cFormatTarget.eCodecID || NULL != _pCodec)
{
throw new NotImplementedException(); //TODO доделать конверт из encoded в raw
}
cFrameSource = Transform(cFormatVideoTarget, cFrameSource);
int nSize;
if (NULL == cFrameSource)
{
(new Logger()).WriteWarning("Format.Video.Convert: IntPtr.Zero == cFrameSource.AVFrameGet()");
}
if (NULL == cFormatVideoTarget.pAVCodecContext)
{
(new Logger()).WriteWarning("Format.Video.Convert: IntPtr.Zero == cFormatVideoTarget.pAVCodecContext");
}
if (null == _cFrame)
{
_cFrame = new Frame(cFormatVideoTarget.nBufferSize);
_cFrame.nPTS = 0;
}
cFrameSource.nPTS = _cFrame.nPTS;
nSize = Functions.avcodec_encode_video(cFormatVideoTarget.pAVCodecContext, _cFrame.aBuffer, _cFrame.nLengthBuffer, cFrameSource.pBytes);
if (0 > nSize)
{
throw new Exception("video encoding failed:" + nSize);
}
if (0 < nSize)
{
aRetVal.Add(new Frame(null, _cFrame.aBuffer.Take(nSize).ToArray()));
AVCodecContext stAVCodecContext = (AVCodecContext)Marshal.PtrToStructure(cFormatVideoTarget.pAVCodecContext, typeof(AVCodecContext));
if (NULL != stAVCodecContext.coded_frame)
{
AVFrame cAVFrame = (AVFrame)Marshal.PtrToStructure(stAVCodecContext.coded_frame, typeof(AVFrame));
aRetVal[0].nPTS = cAVFrame.pts;
aRetVal[0].bKeyframe = 0 < cAVFrame.key_frame;
}
}
_cFrame.nPTS++;
}
catch (Exception ex)
{
(new Logger()).WriteError(ex);
}
return(aRetVal.ToArray());
}
