private void DrawImage(VideoFrameType type)
{
Stream str = new MemoryStream();
BinaryWriter writer = new BinaryWriter(str);
// LITTLE ENDIAN!!
writer.Write(new byte[] { 0x42, 0x4D });
writer.Write((int)(type.managedData.Length + 0x36));
writer.Write((int)0);
writer.Write((int)0x36);
writer.Write((int)40);
writer.Write((int)type.width);
writer.Write((int)type.height);
writer.Write((short)1);
writer.Write((short)24);
writer.Write((int)0);
writer.Write((int)type.managedData.Length);
writer.Write((int)3780);
writer.Write((int)3780);
writer.Write((int)0);
writer.Write((int)0);
for (int y = type.height - 1; y >= 0; y--)
writer.Write(type.managedData, y * type.linesize, type.width * 3);
writer.Flush();
writer.Seek(0, SeekOrigin.Begin);
Bitmap bitmap = new Bitmap(str);
g.DrawImage(bitmap, 0, 0, mainDraw.WidthRequest, mainDraw.HeightRequest);
writer.Close();
}
private void ConvertToBitmap(ref VideoFrameType t)
{
var frame = avFrame;
//FFmpeg.AVFrame final = gcnew AvFrame(PIX_FMT_BGR24, this->size);
IntPtr final = AV.avcodec_alloc_frame();
AV.AVFrame finalFrame = new NativeGetter <AV.AVFrame>(final).Get();
var dst_fmt = AV.AVPixelFormat.AV_PIX_FMT_BGR24;
int count = AV.avpicture_get_size(dst_fmt, codecCtx.width, codecCtx.height);
IntPtr bufferArr = Marshal.AllocHGlobal(count);
AV.avpicture_fill(final, bufferArr, dst_fmt, codecCtx.width, codecCtx.height);
IntPtr swsContext = AV.sws_getContext(codecCtx.width, codecCtx.height, codecCtx.pix_fmt,
codecCtx.width, codecCtx.height, dst_fmt, AV.SWS_BICUBIC, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
if (swsContext == IntPtr.Zero)
{
throw new Exception();
}
finalFrame = new NativeGetter <AV.AVFrame>(final).Get();
AV.sws_scale(swsContext, frame.data, frame.linesize, 0, codecCtx.height, finalFrame.data, finalFrame.linesize);
new NativeSetter <AV.AVFrame>(final).Set(finalFrame);
// Array::Reverse(bufferArr);
byte[] buffer = new byte[count];
Marshal.Copy(bufferArr, buffer, 0, count);
AV.av_free(final);
Marshal.FreeHGlobal(bufferArr);
t.width = codecCtx.width;
t.height = codecCtx.height;
t.SourceFormat = codecCtx.pix_fmt;
t.DestFormat = dst_fmt;
t.managedData = buffer;
t.linesize = finalFrame.linesize[0];
}
private void ConvertToBitmap(ref VideoFrameType t)
{
var frame = avFrame;
//FFmpeg.AVFrame final = gcnew AvFrame(PIX_FMT_BGR24, this->size);
IntPtr final = AV.avcodec_alloc_frame();
AV.AVFrame finalFrame = new NativeGetter<AV.AVFrame>(final).Get();
var dst_fmt = AV.AVPixelFormat.AV_PIX_FMT_BGR24;
int count = AV.avpicture_get_size(dst_fmt, codecCtx.width, codecCtx.height);
IntPtr bufferArr = Marshal.AllocHGlobal(count);
AV.avpicture_fill(final, bufferArr, dst_fmt, codecCtx.width, codecCtx.height);
IntPtr swsContext = AV.sws_getContext(codecCtx.width, codecCtx.height, codecCtx.pix_fmt,
codecCtx.width, codecCtx.height, dst_fmt, AV.SWS_BICUBIC, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
if (swsContext == IntPtr.Zero)
throw new Exception();
finalFrame = new NativeGetter<AV.AVFrame>(final).Get();
AV.sws_scale(swsContext, frame.data, frame.linesize, 0, codecCtx.height, finalFrame.data, finalFrame.linesize);
new NativeSetter<AV.AVFrame>(final).Set(finalFrame);
// Array::Reverse(bufferArr);
byte[] buffer = new byte[count];
Marshal.Copy(bufferArr, buffer, 0, count);
AV.av_free(final);
Marshal.FreeHGlobal(bufferArr);
t.width = codecCtx.width;
t.height = codecCtx.height;
t.SourceFormat = codecCtx.pix_fmt;
t.DestFormat = dst_fmt;
t.managedData = buffer;
t.linesize = finalFrame.linesize[0];
}
public void PutImage(VideoFrameType type)
{
queue.Enqueue(type);
}
public void PutImage(VideoFrameType type)
{
queue.Enqueue(type);
}
