unsafe private static extern int AVISaveOptions( IntPtr hwnd, UInt32 flags, int nStreams, IntPtr* ptr_ptr_avi, AVICOMPRESSOPTIONS** ao );
private static extern int AVIMakeCompressedStream( out IntPtr ppsCompressed, IntPtr aviStream, ref AVICOMPRESSOPTIONS ao, int dummy );
/// <summary>
/// オーディオ圧縮の設定ダイアログを表示し、オーディオ圧縮の設定を取得します
/// </summary>
/// <returns></returns>
unsafe public static AVICOMPRESSOPTIONS RequireAudioCompressOption() {
string temp_file = Path.GetTempFileName();
byte[] buf = new byte[] {
82, 73, 70, 70, 94, 0, 0, 0, 87, 65, 86, 69, 102, 109, 116, 32, 16, 0, 0, 0, 1,
0, 1, 0, 64, 31, 0, 0, 64, 31, 0, 0, 1, 0, 8, 0, 100, 97, 116, 97, 58, 0, 0, 0,
128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
};
using ( FileStream fs = new FileStream( temp_file, FileMode.Create ) ) {
fs.Write( buf, 0, buf.Length );
}
AVIFileInit();
//MessageBox.Show( "AVIFileInit ok" );
IntPtr audio;
int hr = AVIStreamOpenFromFileW( out audio, temp_file, _STREAM_TYPE_AUDIO, 0, OF_READ, 0 );
//MessageBox.Show( "AVIStreamOpenFromFileW ok" );
AVICOMPRESSOPTIONS opts = new AVICOMPRESSOPTIONS();
opts.fccType = _STREAM_TYPE_AUDIO; //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;
AVICOMPRESSOPTIONS* p = &opts;
AVICOMPRESSOPTIONS** pp = &p;
IntPtr x = audio;
IntPtr* ptr_ps = &x;
AVISaveOptions( IntPtr.Zero, 0, 1, ptr_ps, pp );
//MessageBox.Show( "AVISaveOptions ok" );
AVICOMPRESSOPTIONS copied = new AVICOMPRESSOPTIONS();
copied = opts;
AVIStreamRelease( audio );
//MessageBox.Show( "AVIStreamRelease(audio) ok" );
AVIFileExit();
//MessageBox.Show( "AVIFileExit ok" );
File.Delete( temp_file );
return copied;
}
unsafe private bool SetOptions( IntPtr hwnd ) {
// VIDEO
AVICOMPRESSOPTIONS opts = new AVICOMPRESSOPTIONS();
opts.fccType = 0;
opts.fccHandler = 0;
opts.dwKeyFrameEvery = 0;
opts.dwQuality = 0;
opts.dwFlags = 0;
opts.dwBytesPerSecond = 0;
opts.lpFormat = new IntPtr( 0 );
opts.cbFormat = 0;
opts.lpParms = new IntPtr( 0 );
opts.cbParms = 0;
opts.dwInterleaveEvery = 0;
AVICOMPRESSOPTIONS* p = &opts;
AVICOMPRESSOPTIONS** pp;
pp = &p;
IntPtr x = m_video;
IntPtr* ptr_ps;
ptr_ps = &x;
if ( AVISaveOptions( hwnd, 0, 1, ptr_ps, pp ) == 0 ) {
return false;
}
int hr = AVIMakeCompressedStream( out m_video_compressed, m_video, ref opts, 0 );
if ( hr != 0 ) {
throw new AviException( "AVIMakeCompressedStream; Video" );
}
m_strh_fcc = opts.fccHandler;
#if DEBUG
Console.WriteLine( "AviWriterVfw+SetOptions" );
Console.WriteLine( " opts.fccHandler=" + opts.fccHandler );
#endif
// TODO: AVISaveOptionsFree(...)
BITMAPINFO bi = new BITMAPINFO();
bi.bmiHeader.biSize = 40;
bi.bmiHeader.biWidth = (Int32)m_width;
bi.bmiHeader.biHeight = (Int32)m_height;
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 24;
bi.bmiHeader.biCompression = 0;
bi.bmiHeader.biSizeImage = m_stride * m_height;
bi.bmiHeader.biXPelsPerMeter = 0;
bi.bmiHeader.biYPelsPerMeter = 0;
bi.bmiHeader.biClrUsed = 0;
bi.bmiHeader.biClrImportant = 0;
hr = AVIStreamSetFormat( m_video_compressed, 0, ref bi, sizeof( BITMAPINFO ) );
if ( hr != 0 ) {
throw new AviException( "AVIStreamSetFormat", hr );
}
#if DEBUG
Console.WriteLine( " bi.bmiHeader.biCompression=" + bi.bmiHeader.biCompression );
#endif
return true;
}
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;
}