public static VideoCompressor[] GetAll(bool reload)
{
if (compressors != null && !reload)
{
// Compressors are cached so if a new one gets installed, apps need restart to get update data
return(compressors.ToArray());
}
compressors = new List <VideoCompressor>();
Avi32Interop.ICINFO ici = new Avi32Interop.ICINFO();
ici.Init();
int hr = int.MaxValue;
for (uint i = 0; hr != 0; i++)
{
// Get info for compressor #i
ici.biSize = (uint)Marshal.SizeOf(ici);
hr = Avi32Interop.ICInfo(Avi32Interop.ICTYPE_VIDEO, i, ref ici);
try {
// Create compressor using fccHandler
VideoCompressor compressor = new VideoCompressor(ici.fccHandler);
compressors.Add(compressor);
}
catch (AviException) {
}
}
return(compressors.ToArray());
}
public override bool Equals(object obj)
{
VideoCompressor compressor = obj as VideoCompressor;
if (compressor == null)
{
return(false);
}
return(this.fccHandler.Equals(compressor.fccHandler));
}
private void SetupVideo(DisplayFormat videoFormat, VideoCompressor compressor, int fps)
{
int colorDepth = Bitmap.GetPixelFormatSize(videoFormat.PixelFormat);
int width = videoFormat.Width;
int height = videoFormat.Height;
// Calculate pitch
int bytesPerPixel = colorDepth / 8;
int pitch = width * bytesPerPixel;
int pitch_factor = 4;
if (pitch % pitch_factor != 0)
{
pitch = pitch + pitch_factor - pitch % pitch_factor;
}
// Create AVI Stream
Avi32Interop.AVISTREAMINFO asf = new Avi32Interop.AVISTREAMINFO();
asf.dwRate = fps;
asf.dwSuggestedBufferSize = pitch * height * bytesPerPixel;
asf.dwScale = 1;
asf.fccType = Avi32Interop.streamtypeVIDEO;
asf.szName = null;
asf.rcFrame = new Avi32Interop.RECT(0, 0, width, height);
int hr = Avi32Interop.AVIFileCreateStream(this.pAviFile, out this.pVideoStream, ref asf);
if (hr != 0)
{
throw new AviException("AVIFileCreateStream", hr);
}
// Set stream format
Avi32Interop.BITMAPINFOHEADER bih = new Avi32Interop.BITMAPINFOHEADER();
bih.biBitCount = (ushort)colorDepth;
bih.biCompression = 0; // BI_RGB
bih.biHeight = videoFormat.Height;
bih.biPlanes = 1;
bih.biSize = (uint)Marshal.SizeOf(bih);
bih.biSizeImage = (uint)(pitch * height * (colorDepth / 8));
bih.biWidth = videoFormat.Width;
if (compressor != null && !compressor.Equals(VideoCompressor.None))
{
// Setup compressor
this.SetupVideoCompressor(compressor);
hr = Avi32Interop.AVIStreamSetFormat(this.pAviCompressedStream, 0, ref bih, Marshal.SizeOf(bih));
}
else
{
hr = Avi32Interop.AVIStreamSetFormat(this.pVideoStream, 0, ref bih, Marshal.SizeOf(bih));
}
if (hr != 0)
{
throw new AviException("AVIStreamSetFormat", hr);
}
}
private void SetupVideoCompressor(VideoCompressor compressor)
{
Avi32Interop.AVICOMPRESSOPTIONS compressorOptions = new Avi32Interop.AVICOMPRESSOPTIONS();
uint fccHandler = compressor.FccHandler;
compressorOptions.fccType = Avi32Interop.ICTYPE_VIDEO;
compressorOptions.fccHandler = fccHandler;
compressorOptions.dwQuality = (uint)compressor.Quality;
// Open compressor
IntPtr hic = Avi32Interop.ICOpen(Avi32Interop.ICTYPE_VIDEO, fccHandler, Avi32Interop.ICMODE_QUERY);
if (hic == IntPtr.Zero)
{
int errorCode = Marshal.GetLastWin32Error();
throw new AviException(errorCode, string.Format("ICOpen failed, error code = 0x{0:X8}.", errorCode));
}
// Get number of bytes required for params
uint cbParams = (uint)Avi32Interop.ICGetState(hic, IntPtr.Zero, 0);
IntPtr pParams = Marshal.AllocHGlobal((int)cbParams);
try {
// Get params
int retval = Avi32Interop.ICGetState(hic, pParams, cbParams);
compressorOptions.cbParms = cbParams;
// If the Xvid Video Codec is selected, hack params to hide status window!
if (string.Equals(compressor.FccHandlerString, xvidCodec))
{
ModifyXvidParams(pParams, (int)cbParams);
}
compressorOptions.lpParms = pParams;
compressorOptions.dwFlags = Avi32Interop.AVICOMPRESSF_VALID;
// Close compressor
Avi32Interop.ICClose(hic);
// Make compressed stream
int hr = Avi32Interop.AVIMakeCompressedStream(out this.pAviCompressedStream, this.pVideoStream,
ref compressorOptions, 0);
if (hr != 0)
{
throw new AviException(hr, string.Format("AVIMakeCompressedStream failed, error code = 0x{0:X8}.",
hr));
}
}
finally {
if (pParams != IntPtr.Zero)
{
Marshal.FreeHGlobal(pParams);
}
}
}
public static VideoCompressor Create(string fccHandler)
{
if (string.IsNullOrEmpty(fccHandler))
{
throw new ArgumentNullException("fccHandler");
}
if (fccHandler.Length != 4)
{
throw new ArgumentException("fccHandler");
}
uint ffcHandler = Avi32Interop.mmioFOURCC(fccHandler[0], fccHandler[1], fccHandler[2], fccHandler[3]);
VideoCompressor compressor = new VideoCompressor(ffcHandler);
return(compressor);
}
public void Open(string fileName, DisplayFormat videoFormat, int fps, VideoCompressor compressor,
SoundFormat audioFormat, AcmEncoder audioEncoder)
{
if (this.opened)
{
throw new InvalidOperationException();
}
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException("fileName");
}
this.video = videoFormat != null;
this.audio = audioFormat != null;
if (!this.audio && !this.video)
{
// There is nothing to do!
throw new InvalidOperationException();
}
// Open AVI File
int hr = Avi32Interop.AVIFileOpen(out this.pAviFile, fileName, Avi32Interop.OF_CREATE, IntPtr.Zero);
if (hr != 0)
{
throw new AviException("AVIFileOpen", hr);
}
try {
if (this.video)
{
this.SetupVideo(videoFormat, compressor, fps);
}
if (this.audio)
{
this.SetupAudio(audioFormat, audioEncoder);
}
this.opened = true;
}
finally {
if (!this.opened)
{
this.Close();
}
}
}
public static VideoCompressor[] GetAll(bool reload)
{
if (compressors != null && !reload) {
// Compressors are cached so if a new one gets installed, apps need restart to get update data
return compressors.ToArray();
}
compressors = new List<VideoCompressor>();
Avi32Interop.ICINFO ici = new Avi32Interop.ICINFO();
ici.Init();
int hr = int.MaxValue;
for (uint i = 0; hr != 0; i++) {
// Get info for compressor #i
ici.biSize = (uint)Marshal.SizeOf(ici);
hr = Avi32Interop.ICInfo(Avi32Interop.ICTYPE_VIDEO, i, ref ici);
try {
// Create compressor using fccHandler
VideoCompressor compressor = new VideoCompressor(ici.fccHandler);
compressors.Add(compressor);
}
catch (AviException) {
}
}
return compressors.ToArray();
}
public static VideoCompressor Create(string fccHandler)
{
if (string.IsNullOrEmpty(fccHandler)) {
throw new ArgumentNullException("fccHandler");
}
if (fccHandler.Length != 4) {
throw new ArgumentException("fccHandler");
}
uint ffcHandler = Avi32Interop.mmioFOURCC(fccHandler[0], fccHandler[1], fccHandler[2], fccHandler[3]);
VideoCompressor compressor = new VideoCompressor(ffcHandler);
return compressor;
}
private void SetupVideoCompressor(VideoCompressor compressor)
{
Avi32Interop.AVICOMPRESSOPTIONS compressorOptions = new Avi32Interop.AVICOMPRESSOPTIONS();
uint fccHandler = compressor.FccHandler;
compressorOptions.fccType = Avi32Interop.ICTYPE_VIDEO;
compressorOptions.fccHandler = fccHandler;
compressorOptions.dwQuality = (uint)compressor.Quality;
// Open compressor
IntPtr hic = Avi32Interop.ICOpen(Avi32Interop.ICTYPE_VIDEO, fccHandler, Avi32Interop.ICMODE_QUERY);
if (hic == IntPtr.Zero) {
int errorCode = Marshal.GetLastWin32Error();
throw new AviException(errorCode, string.Format("ICOpen failed, error code = 0x{0:X8}.", errorCode));
}
// Get number of bytes required for params
uint cbParams = (uint)Avi32Interop.ICGetState(hic, IntPtr.Zero, 0);
IntPtr pParams = Marshal.AllocHGlobal((int)cbParams);
try {
// Get params
int retval = Avi32Interop.ICGetState(hic, pParams, cbParams);
compressorOptions.cbParms = cbParams;
// If the Xvid Video Codec is selected, hack params to hide status window!
if (string.Equals(compressor.FccHandlerString, xvidCodec)) {
ModifyXvidParams(pParams, (int)cbParams);
}
compressorOptions.lpParms = pParams;
compressorOptions.dwFlags = Avi32Interop.AVICOMPRESSF_VALID;
// Close compressor
Avi32Interop.ICClose(hic);
// Make compressed stream
int hr = Avi32Interop.AVIMakeCompressedStream(out this.pAviCompressedStream, this.pVideoStream,
ref compressorOptions, 0);
if (hr != 0) {
throw new AviException(hr, string.Format("AVIMakeCompressedStream failed, error code = 0x{0:X8}.",
hr));
}
}
finally {
if (pParams != IntPtr.Zero) {
Marshal.FreeHGlobal(pParams);
}
}
}
private void SetupVideo(DisplayFormat videoFormat, VideoCompressor compressor, int fps)
{
int colorDepth = Bitmap.GetPixelFormatSize(videoFormat.PixelFormat);
int width = videoFormat.Width;
int height = videoFormat.Height;
// Calculate pitch
int bytesPerPixel = colorDepth / 8;
int pitch = width * bytesPerPixel;
int pitch_factor = 4;
if (pitch % pitch_factor != 0) {
pitch = pitch + pitch_factor - pitch % pitch_factor;
}
// Create AVI Stream
Avi32Interop.AVISTREAMINFO asf = new Avi32Interop.AVISTREAMINFO();
asf.dwRate = fps;
asf.dwSuggestedBufferSize = pitch * height * bytesPerPixel;
asf.dwScale = 1;
asf.fccType = Avi32Interop.streamtypeVIDEO;
asf.szName = null;
asf.rcFrame = new Avi32Interop.RECT(0, 0, width, height);
int hr = Avi32Interop.AVIFileCreateStream(this.pAviFile, out this.pVideoStream, ref asf);
if (hr != 0) {
throw new AviException("AVIFileCreateStream", hr);
}
// Set stream format
Avi32Interop.BITMAPINFOHEADER bih = new Avi32Interop.BITMAPINFOHEADER();
bih.biBitCount = (ushort)colorDepth;
bih.biCompression = 0; // BI_RGB
bih.biHeight = videoFormat.Height;
bih.biPlanes = 1;
bih.biSize = (uint)Marshal.SizeOf(bih);
bih.biSizeImage = (uint)(pitch * height * (colorDepth / 8));
bih.biWidth = videoFormat.Width;
if (compressor != null && !compressor.Equals(VideoCompressor.None)) {
// Setup compressor
this.SetupVideoCompressor(compressor);
hr = Avi32Interop.AVIStreamSetFormat(this.pAviCompressedStream, 0, ref bih, Marshal.SizeOf(bih));
}
else {
hr = Avi32Interop.AVIStreamSetFormat(this.pVideoStream, 0, ref bih, Marshal.SizeOf(bih));
}
if (hr != 0) {
throw new AviException("AVIStreamSetFormat", hr);
}
}
public void Open(string fileName, DisplayFormat videoFormat, int fps, VideoCompressor compressor,
SoundFormat audioFormat, AcmEncoder audioEncoder)
{
if (this.opened) {
throw new InvalidOperationException();
}
if (string.IsNullOrEmpty(fileName)) {
throw new ArgumentNullException("fileName");
}
this.video = videoFormat != null;
this.audio = audioFormat != null;
if (!this.audio && !this.video) {
// There is nothing to do!
throw new InvalidOperationException();
}
// Open AVI File
int hr = Avi32Interop.AVIFileOpen(out this.pAviFile, fileName, Avi32Interop.OF_CREATE, IntPtr.Zero);
if (hr != 0) {
throw new AviException("AVIFileOpen", hr);
}
try {
if (this.video) {
this.SetupVideo(videoFormat, compressor, fps);
}
if (this.audio) {
this.SetupAudio(audioFormat, audioEncoder);
}
this.opened = true;
}
finally {
if (!this.opened) {
this.Close();
}
}
}
