unsafe public static AVICOMPRESSOPTIONS RequireVideoCompressOption(AVICOMPRESSOPTIONS current_option)
{
AviWriterVfw temp = new AviWriterVfw();
temp.m_scale = 1000;
temp.m_rate = 30 * temp.m_scale;
int width = 10, height = 10;
temp.m_width = (UInt32)width;
temp.m_height = (UInt32)height;
using (Bitmap bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb)) {
BitmapData bmpDat = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
temp.m_stride = (UInt32)bmpDat.Stride;
bmp.UnlockBits(bmpDat);
}
AVIFileInit();
string temp_file = Path.GetTempFileName() + ".avi";// .aviを付けないと、AVIFileOpenWが失敗する
int hr = AVIFileOpenW(ref temp.m_file_handle, temp_file, OF_WRITE | OF_CREATE, 0);
if (hr != 0)
{
throw new AviException("error for AVIFileOpenW");
}
temp.CreateStream();
AVICOMPRESSOPTIONS opts = new AVICOMPRESSOPTIONS();
opts.fccType = 0; //fccType_;
opts.fccHandler = 0; //fccHandler_;
opts.dwKeyFrameEvery = 0;
opts.dwQuality = 0; // 0 .. 10000
opts.dwFlags = 0; // AVICOMRPESSF_KEYFRAMES = 4
opts.dwBytesPerSecond = 0;
opts.lpFormat = new IntPtr(0);
opts.cbFormat = 0;
opts.lpParms = new IntPtr(0);
opts.cbParms = 0;
opts.dwInterleaveEvery = 0;
opts = current_option;
AVICOMPRESSOPTIONS * p = &opts;
AVICOMPRESSOPTIONS **pp = &p;
IntPtr x = temp.m_video;
IntPtr *ptr_ps = &x;
AVISaveOptions(IntPtr.Zero, 0, 1, ptr_ps, pp);
//MessageBox.Show( "AVISaveOptions ok" );
AVICOMPRESSOPTIONS copied = new AVICOMPRESSOPTIONS();
copied = opts;
AVIStreamRelease(temp.m_video);
//MessageBox.Show( "AVIStreamRelease(temp.m_video) ok" );
AVIFileRelease(temp.m_file_handle);
//MessageBox.Show( "AVIFileRelease ok" );
AVIFileExit();
//MessageBox.Show( "AVIFileExit ok" );
File.Delete(temp_file);
//MessageBox.Show( "File.Delete(fileName) ok" );
return(copied);
}
unsafe public static AVICOMPRESSOPTIONS RequireVideoCompressOption( AVICOMPRESSOPTIONS current_option ) {
AviWriterVfw temp = new AviWriterVfw();
temp.m_scale = 1000;
temp.m_rate = 30 * temp.m_scale;
int width = 10, height = 10;
temp.m_width = (UInt32)width;
temp.m_height = (UInt32)height;
using ( Bitmap bmp = new Bitmap( width, height, PixelFormat.Format24bppRgb ) ) {
BitmapData bmpDat = bmp.LockBits( new Rectangle( 0, 0, width, height ), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb );
temp.m_stride = (UInt32)bmpDat.Stride;
bmp.UnlockBits( bmpDat );
}
AVIFileInit();
string temp_file = Path.GetTempFileName() + ".avi";// .aviを付けないと、AVIFileOpenWが失敗する
int hr = AVIFileOpenW( ref temp.m_file_handle, temp_file, OF_WRITE | OF_CREATE, 0 );
if ( hr != 0 ) {
throw new AviException( "error for AVIFileOpenW" );
}
temp.CreateStream();
AVICOMPRESSOPTIONS opts = new AVICOMPRESSOPTIONS();
opts.fccType = 0; //fccType_;
opts.fccHandler = 0;//fccHandler_;
opts.dwKeyFrameEvery = 0;
opts.dwQuality = 0; // 0 .. 10000
opts.dwFlags = 0; // AVICOMRPESSF_KEYFRAMES = 4
opts.dwBytesPerSecond = 0;
opts.lpFormat = new IntPtr( 0 );
opts.cbFormat = 0;
opts.lpParms = new IntPtr( 0 );
opts.cbParms = 0;
opts.dwInterleaveEvery = 0;
opts = current_option;
AVICOMPRESSOPTIONS* p = &opts;
AVICOMPRESSOPTIONS** pp = &p;
IntPtr x = temp.m_video;
IntPtr* ptr_ps = &x;
AVISaveOptions( IntPtr.Zero, 0, 1, ptr_ps, pp );
//MessageBox.Show( "AVISaveOptions ok" );
AVICOMPRESSOPTIONS copied = new AVICOMPRESSOPTIONS();
copied = opts;
AVIStreamRelease( temp.m_video );
//MessageBox.Show( "AVIStreamRelease(temp.m_video) ok" );
AVIFileRelease( temp.m_file_handle );
//MessageBox.Show( "AVIFileRelease ok" );
AVIFileExit();
//MessageBox.Show( "AVIFileExit ok" );
File.Delete( temp_file );
//MessageBox.Show( "File.Delete(fileName) ok" );
return copied;
}