private Audio()
: base(EffectType.Audio)
{
try
{
_cFile = null;
ePlaybackMode = ffmpeg.net.File.Input.PlaybackMode.RealTime;
}
catch
{
Fail();
throw;
}
}
public Audio(XmlNode cXmlNode)
: this()
{
try
{
LoadXML(cXmlNode);
ePlaybackMode = cXmlNode.AttributeOrDefaultGet <ffmpeg.net.File.Input.PlaybackMode>("playback_mode", ffmpeg.net.File.Input.PlaybackMode.RealTime);
Init(cXmlNode.AttributeValueGet("file"));
}
catch
{
Fail();
throw;
}
}
public void Open(MergingMethod stMergingMethod, ffmpeg.net.File.Input.PlaybackMode ePlaybackMode)
{
// TODO нужно выцеплять размеры кадра из видео.
_bClosed = false;
if (null == _cFile)
{
_cFile = new ffmpeg.net.File.Input(_sFile, nFrameStart);
}
(new Logger()).WriteDebug("[video_file open " + GetHashCode() + "][ffmpeg_file " + _cFile.GetHashCode() + "]");
//Area stDeviceArea = Baetylus.Helper.stCurrentBTLArea;
_cFormatVideo = new ffmpeg.net.Format.Video(stArea.nWidth, stArea.nHeight, ffmpeg.net.PixelFormat.AV_PIX_FMT_BGRA, ffmpeg.net.AVFieldOrder.AV_FIELD_TT);
short nTop = stArea.nTop;
ushort nHei = stArea.nHeight;
if (stArea.nTop < 0) // если верх выше границы, то не будем копировать лишние строки в пиксельсмэп
{
nTop = 0;
}
if (nTop < stContainerArea.nHeight && stArea.nHeight + stArea.nTop > stContainerArea.nHeight) // если низ ниже, то не будем копировать лишние строки в пиксельсмэп
{
nHei = (ushort)(stContainerArea.nHeight - (ushort)nTop);
}
stPixelArea = new Area(stArea.nLeft, nTop, stArea.nWidth, nHei);
_cPMDuo = new PixelsMap.Triple(stMergingMethod, stPixelArea, PixelsMap.Format.BGRA32, true, Baetylus.PixelsMapDispose);
ffmpeg.net.AVSampleFormat eAVSampleFormat;
switch (Preferences.nAudioBitDepth)
{
case 32:
eAVSampleFormat = ffmpeg.net.AVSampleFormat.AV_SAMPLE_FMT_S32;
break;
case 16:
default:
eAVSampleFormat = ffmpeg.net.AVSampleFormat.AV_SAMPLE_FMT_S16;
break;
}
int nAudioChannelsQty = Preferences.nAudioChannelsQtyFfmpeg;
_cFormatAudio = new ffmpeg.net.Format.Audio((int)Preferences.nAudioSamplesRate, nAudioChannelsQty, eAVSampleFormat);
nFramesTotal = _cFile.nFramesQty;
//_cFile.Prepare(nDuration);
_cFile.Prepare(_cFormatVideo, _cFormatAudio, ePlaybackMode);
}
public Video(XmlNode cXmlNode)
: this()
{
try
{
ePlaybackMode = cXmlNode.AttributeOrDefaultGet <ffmpeg.net.File.Input.PlaybackMode>("pb_mode", ffmpeg.net.File.Input.PlaybackMode.RealTime);
string sFile = cXmlNode.AttributeValueGet("file");
Init(sFile);
LoadXML(cXmlNode);
_cFile.aAudioChannels = aChannelsAudio;
_cFile.stContainerArea = stArea;
short nCropHorizontal = cXmlNode.AttributeGet <short>("crop_horizontal");
short nCropVertical = cXmlNode.AttributeGet <short>("crop_vertical");
float nAspect_Ratio = cXmlNode.AttributeGet <float>("aspect_ratio");
float nW = nWidthOriginal;
float nH = nHeightOriginal;
nH = nAspectRatio_divider == 0 ? nH : nH * nAspectRatio_dividend / nAspectRatio_divider; // приведение к 1:1
nW = nW * nAspect_Ratio; // учёт аспекта пикселя результата
float nWnewPre = stArea.nWidth + 2 * nCropHorizontal;
float nHnewPre = stArea.nHeight + 2 * nCropVertical;
float nK = Math.Min(nW / nWnewPre, nH / nHnewPre);
float nWnew = nW / nK;
float nHnew = nH / nK;
int nCropHoriz = (int)((nWnew - nWnewPre) / 2 + nCropHorizontal);
int nCropVert = (int)((nHnew - nHnewPre) / 2 + nCropVertical);
stArea = new Area((short)(stArea.nLeft - nCropHoriz), (short)(stArea.nTop - nCropVert), (ushort)nWnew, (ushort)nHnew);
}
catch
{
Fail();
throw;
}
}
public void Open(ffmpeg.net.File.Input.PlaybackMode ePlaybackMode)
{
_cFile = new ffmpeg.net.File.Input(_sFile, nFrameStart);
ffmpeg.net.AVSampleFormat eAVSampleFormat;
switch (Preferences.nAudioBitDepth)
{
case 32:
eAVSampleFormat = ffmpeg.net.AVSampleFormat.AV_SAMPLE_FMT_S32;
break;
case 16:
default:
eAVSampleFormat = ffmpeg.net.AVSampleFormat.AV_SAMPLE_FMT_S16;
break;
}
int nAudioChannelsQty = Preferences.nAudioChannelsQtyFfmpeg;
_cFormat = new ffmpeg.net.Format.Audio((int)Preferences.nAudioSamplesRate, nAudioChannelsQty, eAVSampleFormat);
nFramesTotal = _cFile.nFramesQty;
//_cFile.Prepare(nDuration);
_cFile.Prepare(null, _cFormat, ePlaybackMode);
}
