static AviWriterSegment()
{
Win32.AVIFileInit();
}
public unsafe void AddFrame(IVideoProvider source)
{
if (parameters.width != source.BufferWidth ||
parameters.height != source.BufferHeight)
{
throw new InvalidOperationException("video buffer changed between start and now");
}
int pitch_add = parameters.pitch_add;
int todo = parameters.pitch * parameters.height;
int w = source.BufferWidth;
int h = source.BufferHeight;
if (!bit32)
{
IntPtr buf = GetStaticGlobalBuf(todo);
// TODO - would using a byte* be faster?
int[] buffer = source.GetVideoBuffer();
fixed(int *buffer_ptr = &buffer[0])
{
byte *bytes_ptr = (byte *)buf.ToPointer();
{
byte *bp = bytes_ptr;
for (int idx = w * h - w, y = 0; y < h; y++)
{
for (int x = 0; x < w; x++, idx++)
{
int r = (buffer[idx] >> 0) & 0xFF;
int g = (buffer[idx] >> 8) & 0xFF;
int b = (buffer[idx] >> 16) & 0xFF;
* bp++ = (byte)r;
* bp++ = (byte)g;
* bp++ = (byte)b;
}
idx -= w * 2;
bp += pitch_add;
}
int bytes_written;
int ret = Win32.AVIStreamWrite(pAviCompressedVideoStream, outStatus.video_frames, 1, new IntPtr(bytes_ptr), todo, Win32.AVIIF_KEYFRAME, IntPtr.Zero, out bytes_written);
outStatus.video_bytes += bytes_written;
outStatus.video_frames++;
}
}
}
else // 32 bit
{
IntPtr buf = GetStaticGlobalBuf(todo * 4);
int[] buffer = source.GetVideoBuffer();
fixed(int *buffer_ptr = &buffer[0])
{
byte *bytes_ptr = (byte *)buf.ToPointer();
{
byte *bp = bytes_ptr;
for (int idx = w * h - w, y = 0; y < h; y++)
{
for (int x = 0; x < w; x++, idx++)
{
int r = (buffer[idx] >> 0) & 0xFF;
int g = (buffer[idx] >> 8) & 0xFF;
int b = (buffer[idx] >> 16) & 0xFF;
* bp++ = (byte)r;
* bp++ = (byte)g;
* bp++ = (byte)b;
* bp++ = 0;
}
idx -= w * 2;
}
int bytes_written;
int ret = Win32.AVIStreamWrite(pAviCompressedVideoStream, outStatus.video_frames, 1, new IntPtr(bytes_ptr), todo * 3, Win32.AVIIF_KEYFRAME, IntPtr.Zero, out bytes_written);
outStatus.video_bytes += bytes_written;
outStatus.video_frames++;
}
}
}
}
public void ensureVisible(int index)
{
Win32.SendMessage(Handle, (int)ListViewMessages.LVM_ENSUREVISIBLE, index, 1);
}
