public void BluRaySupWriteAndReadTwoBitmaps()
{
var fileName = Guid.NewGuid() + ".sup";
using (var binarySubtitleFile = new FileStream(fileName, FileMode.Create))
{
var brSub = new BluRaySupPicture
{
StartTime = 0,
EndTime = 1000,
Width = 1080,
Height = 720
};
var buffer = BluRaySupPicture.CreateSupFrame(brSub, new Bitmap(100, 20), 10, 25, 10, ContentAlignment.BottomCenter);
binarySubtitleFile.Write(buffer, 0, buffer.Length);
brSub.StartTime = 2000;
brSub.EndTime = 3000;
buffer = BluRaySupPicture.CreateSupFrame(brSub, new Bitmap(100, 20), 10, 25, 10, ContentAlignment.BottomCenter);
binarySubtitleFile.Write(buffer, 0, buffer.Length);
}
var log = new StringBuilder();
var subtitles = BluRaySupParser.ParseBluRaySup(fileName, log);
Assert.AreEqual(2, subtitles.Count);
}
/// <summary>
/// Create the binary stream representation of one caption
/// </summary>
/// <param name="pic">SubPicture object containing caption info - note that first Composition Number should be 0, then 2, 4, 8, etc.</param>
/// <param name="bmp">Bitmap</param>
/// <param name="fps">Frames per second</param>
/// <param name="bottomMargin">Image bottom margin</param>
/// <param name="leftOrRightMargin">Image left/right margin</param>
/// <param name="alignment">Alignment of image</param>
/// <param name="overridePosition">Position that overrides alignment</param>
/// <returns>Byte buffer containing the binary stream representation of one caption</returns>
public static byte[] CreateSupFrame(BluRaySupPicture pic, Bitmap bmp, double fps, int bottomMargin, int leftOrRightMargin, ContentAlignment alignment, Point? overridePosition = null)
{
var bm = new NikseBitmap(bmp);
var colorPalette = GetBitmapPalette(bm);
var pal = new BluRaySupPalette(colorPalette.Count);
int k = 0;
foreach (var kvp in colorPalette)
{
pal.SetColor(k, kvp.Key);
k++;
}
byte[] rleBuf = EncodeImage(bm, colorPalette);
// for some obscure reason, a packet can be a maximum 0xfffc bytes
// since 13 bytes are needed for the header("PG", PTS, DTS, ID, SIZE)
// there are only 0xffef bytes available for the packet
// since the first ODS packet needs an additional 11 bytes for info
// and the following ODS packets need 4 additional bytes, the
// first package can store only 0xffe4 RLE buffer bytes and the
// following packets can store 0xffeb RLE buffer bytes
int numAddPackets;
if (rleBuf.Length <= 0xffe4)
numAddPackets = 0; // no additional packets needed;
else
numAddPackets = 1 + (rleBuf.Length - 0xffe4) / 0xffeb;
// a typical frame consists of 8 packets. It can be enlonged by additional
// object frames
int palSize = colorPalette.Count;
var packetHeader = new byte[]
{
0x50, 0x47, // 0: "PG"
0x00, 0x00, 0x00, 0x00, // 2: PTS - presentation time stamp
0x00, 0x00, 0x00, 0x00, // 6: DTS - decoding time stamp
0x00, // 10: segment_type
0x00, 0x00 // 11: segment_length (bytes following till next PG)
};
var headerPcsStart = new byte[]
{
0x00, 0x00, 0x00, 0x00, // 0: video_width, video_height
0x10, // 4: hi nibble: frame_rate (0x10=24p), lo nibble: reserved
0x00, 0x00, // 5: composition_number (increased by start and end header)
0x80, // 7: composition_state (0x80: epoch start)
0x00, // 8: palette_update_flag (0x80), 7bit reserved
0x00, // 9: palette_id_ref (0..7)
0x01, // 10: number_of_composition_objects (0..2)
0x00, 0x00, // 11: 16bit object_id_ref
0x00, // 13: window_id_ref (0..1)
0x00, // 14: object_cropped_flag: 0x80, forced_on_flag = 0x040, 6bit reserved
0x00, 0x00, 0x00, 0x00 // 15: composition_object_horizontal_position, composition_object_vertical_position
};
var headerPcsEnd = new byte[]
{
0x00, 0x00, 0x00, 0x00, // 0: video_width, video_height
0x10, // 4: hi nibble: frame_rate (0x10=24p), lo nibble: reserved
0x00, 0x00, // 5: composition_number (increased by start and end header)
0x00, // 7: composition_state (0x00: normal)
0x00, // 8: palette_update_flag (0x80), 7bit reserved
0x00, // 9: palette_id_ref (0..7)
0x00 // 10: number_of_composition_objects (0..2)
};
var headerWds = new byte[]
{
0x01, // 0 : number of windows (currently assumed 1, 0..2 is legal)
0x00, // 1 : window id (0..1)
0x00, 0x00, 0x00, 0x00, // 2 : x-ofs, y-ofs
0x00, 0x00, 0x00, 0x00 // 6 : width, height
};
var headerOdsFirst = new byte[]
{
0x00, 0x00, // 0: object_id
0x00, // 2: object_version_number
0xC0, // 3: first_in_sequence (0x80), last_in_sequence (0x40), 6bits reserved
0x00, 0x00, 0x00, // 4: object_data_length - full RLE buffer length (including 4 bytes size info)
0x00, 0x00, 0x00, 0x00 // 7: object_width, object_height
};
var headerOdsNext = new byte[]
{
0x00, 0x00, // 0: object_id
0x00, // 2: object_version_number
0x40 // 3: first_in_sequence (0x80), last_in_sequence (0x40), 6bits reserved
};
int size = packetHeader.Length * (8 + numAddPackets);
size += headerPcsStart.Length + headerPcsEnd.Length;
size += 2 * headerWds.Length + headerOdsFirst.Length;
size += numAddPackets * headerOdsNext.Length;
size += (2 + palSize * 5) /* PDS */;
size += rleBuf.Length;
switch (alignment)
{
case ContentAlignment.BottomLeft:
pic.WindowXOffset = leftOrRightMargin;
pic.WindowYOffset = pic.Height - (bm.Height + bottomMargin);
break;
case ContentAlignment.BottomRight:
pic.WindowXOffset = pic.Width - bm.Width - bottomMargin;
pic.WindowYOffset = pic.Height - (bm.Height + leftOrRightMargin);
break;
case ContentAlignment.MiddleCenter:
pic.WindowXOffset = (pic.Width - bm.Width) / 2;
pic.WindowYOffset = (pic.Height - bm.Height) / 2;
break;
case ContentAlignment.MiddleLeft:
pic.WindowXOffset = leftOrRightMargin;
pic.WindowYOffset = (pic.Height - bm.Height) / 2;
break;
case ContentAlignment.MiddleRight:
pic.WindowXOffset = pic.Width - bm.Width - leftOrRightMargin;
pic.WindowYOffset = (pic.Height - bm.Height) / 2;
break;
case ContentAlignment.TopCenter:
pic.WindowXOffset = (pic.Width - bm.Width) / 2;
pic.WindowYOffset = bottomMargin;
break;
case ContentAlignment.TopLeft:
pic.WindowXOffset = leftOrRightMargin;
pic.WindowYOffset = bottomMargin;
break;
case ContentAlignment.TopRight:
pic.WindowXOffset = pic.Width - bm.Width - leftOrRightMargin;
pic.WindowYOffset = bottomMargin;
break;
default: // ContentAlignment.BottomCenter:
pic.WindowXOffset = (pic.Width - bm.Width) / 2;
pic.WindowYOffset = pic.Height - (bm.Height + bottomMargin);
break;
}
if (overridePosition != null &&
overridePosition.Value.X >= 0 && overridePosition.Value.X < bm.Width &&
overridePosition.Value.Y >= 0 && overridePosition.Value.Y < bm.Height)
{
pic.WindowXOffset = overridePosition.Value.X;
pic.WindowYOffset = overridePosition.Value.Y;
}
int yOfs = pic.WindowYOffset - Core.CropOfsY;
if (yOfs < 0)
{
yOfs = 0;
}
else
{
int yMax = pic.Height - pic.WindowHeight - 2 * Core.CropOfsY;
if (yOfs > yMax)
yOfs = yMax;
}
int h = pic.Height - 2 * Core.CropOfsY;
var buf = new byte[size];
int index = 0;
int fpsId = GetFpsId(fps);
/* time (in 90kHz resolution) needed to initialize (clear) the screen buffer
based on the composition pixel rate of 256e6 bit/s - always rounded up */
int frameInitTime = (pic.Width * pic.Height * 9 + 3199) / 3200; // better use default height here
/* time (in 90kHz resolution) needed to initialize (clear) the window area
based on the composition pixel rate of 256e6 bit/s - always rounded up
Note: no cropping etc. -> window size == image size */
int windowInitTime = (bm.Width * bm.Height * 9 + 3199) / 3200;
/* time (in 90kHz resolution) needed to decode the image
based on the decoding pixel rate of 128e6 bit/s - always rounded up */
int imageDecodeTime = (bm.Width * bm.Height * 9 + 1599) / 1600;
// write PCS start
packetHeader[10] = 0x16; // ID
int dts = pic.StartTimeForWrite - (frameInitTime + windowInitTime + imageDecodeTime); //int dts = pic.StartTimeForWrite - windowInitTime; ???
ToolBox.SetDWord(packetHeader, 2, pic.StartTimeForWrite); // PTS
ToolBox.SetDWord(packetHeader, 6, dts); // DTS
ToolBox.SetWord(packetHeader, 11, headerPcsStart.Length); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
ToolBox.SetWord(headerPcsStart, 0, pic.Width);
ToolBox.SetWord(headerPcsStart, 2, h); // cropped height
ToolBox.SetByte(headerPcsStart, 4, fpsId);
ToolBox.SetWord(headerPcsStart, 5, pic.CompositionNumber);
headerPcsStart[14] = (byte)(pic.IsForced ? 0x40 : 0);
ToolBox.SetWord(headerPcsStart, 15, pic.WindowXOffset);
ToolBox.SetWord(headerPcsStart, 17, yOfs);
for (int i = 0; i < headerPcsStart.Length; i++)
buf[index++] = headerPcsStart[i];
// write WDS
packetHeader[10] = 0x17; // ID
int timestamp = pic.StartTimeForWrite - windowInitTime;
ToolBox.SetDWord(packetHeader, 2, timestamp); // PTS (keep DTS)
ToolBox.SetWord(packetHeader, 11, headerWds.Length); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
ToolBox.SetWord(headerWds, 2, pic.WindowXOffset);
ToolBox.SetWord(headerWds, 4, yOfs);
ToolBox.SetWord(headerWds, 6, bm.Width);
ToolBox.SetWord(headerWds, 8, bm.Height);
for (int i = 0; i < headerWds.Length; i++)
buf[index++] = headerWds[i];
// write PDS
packetHeader[10] = 0x14; // ID
ToolBox.SetDWord(packetHeader, 2, dts); // PTS (=DTS of PCS/WDS)
ToolBox.SetDWord(packetHeader, 6, 0); // DTS (0)
ToolBox.SetWord(packetHeader, 11, (2 + palSize * 5)); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
buf[index++] = 0;
buf[index++] = 0;
for (int i = 0; i < palSize; i++)
{
buf[index++] = (byte)i; // index
buf[index++] = pal.GetY()[i]; // Y
buf[index++] = pal.GetCr()[i]; // Cr
buf[index++] = pal.GetCb()[i]; // Cb
buf[index++] = pal.GetAlpha()[i]; // Alpha
}
// write first OBJ
int bufSize = rleBuf.Length;
int rleIndex = 0;
if (bufSize > 0xffe4)
bufSize = 0xffe4;
packetHeader[10] = 0x15; // ID
timestamp = dts + imageDecodeTime;
ToolBox.SetDWord(packetHeader, 2, timestamp); // PTS
ToolBox.SetDWord(packetHeader, 6, dts); // DTS
ToolBox.SetWord(packetHeader, 11, headerOdsFirst.Length + bufSize); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
int marker = (int)((numAddPackets == 0) ? 0xC0000000 : 0x80000000);
ToolBox.SetDWord(headerOdsFirst, 3, marker | (rleBuf.Length + 4));
ToolBox.SetWord(headerOdsFirst, 7, bm.Width);
ToolBox.SetWord(headerOdsFirst, 9, bm.Height);
for (int i = 0; i < headerOdsFirst.Length; i++)
buf[index++] = headerOdsFirst[i];
for (int i = 0; i < bufSize; i++)
buf[index++] = rleBuf[rleIndex++];
// write additional OBJ packets
bufSize = rleBuf.Length - bufSize; // remaining bytes to write
for (int p = 0; p < numAddPackets; p++)
{
int psize = bufSize;
if (psize > 0xffeb)
psize = 0xffeb;
packetHeader[10] = 0x15; // ID (keep DTS & PTS)
ToolBox.SetWord(packetHeader, 11, headerOdsNext.Length + psize); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
for (int i = 0; i < headerOdsNext.Length; i++)
buf[index++] = headerOdsNext[i];
for (int i = 0; i < psize; i++)
buf[index++] = rleBuf[rleIndex++];
bufSize -= psize;
}
// write END
packetHeader[10] = 0x80; // ID
ToolBox.SetDWord(packetHeader, 6, 0); // DTS (0) (keep PTS of ODS)
ToolBox.SetWord(packetHeader, 11, 0); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
// write PCS end
packetHeader[10] = 0x16; // ID
ToolBox.SetDWord(packetHeader, 2, pic.EndTimeForWrite); // PTS
dts = pic.EndTimeForWrite - 1; //dts = pic.StartTimeForWrite - 1;
ToolBox.SetDWord(packetHeader, 6, dts); // DTS
ToolBox.SetWord(packetHeader, 11, headerPcsEnd.Length); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
ToolBox.SetWord(headerPcsEnd, 0, pic.Width);
ToolBox.SetWord(headerPcsEnd, 2, h); // cropped height
ToolBox.SetByte(headerPcsEnd, 4, fpsId);
ToolBox.SetWord(headerPcsEnd, 5, pic.CompositionNumber + 1);
for (int i = 0; i < headerPcsEnd.Length; i++)
buf[index++] = headerPcsEnd[i];
// write WDS
packetHeader[10] = 0x17; // ID
timestamp = pic.EndTimeForWrite - windowInitTime;
ToolBox.SetDWord(packetHeader, 2, timestamp); // PTS (keep DTS of PCS)
ToolBox.SetWord(packetHeader, 11, headerWds.Length); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
ToolBox.SetWord(headerWds, 2, pic.WindowXOffset);
ToolBox.SetWord(headerWds, 4, yOfs);
ToolBox.SetWord(headerWds, 6, bm.Width);
ToolBox.SetWord(headerWds, 8, bm.Height);
for (int i = 0; i < headerWds.Length; i++)
buf[index++] = headerWds[i];
// write END
packetHeader[10] = 0x80; // ID
ToolBox.SetDWord(packetHeader, 2, dts); // PTS (DTS of end PCS)
ToolBox.SetDWord(packetHeader, 6, 0); // DTS (0)
ToolBox.SetWord(packetHeader, 11, 0); // size
for (int i = 0; i < packetHeader.Length; i++)
buf[index++] = packetHeader[i];
return buf;
}
private static void MakeBluRaySupImage(MakeBitmapParameter param)
{
var brSub = new BluRaySupPicture
{
StartTime = (long)param.P.StartTime.TotalMilliseconds,
EndTime = (long)param.P.EndTime.TotalMilliseconds,
Width = param.ScreenWidth,
Height = param.ScreenHeight,
IsForced = param.Forced
};
if (param.FullFrame)
{
var nbmp = new NikseBitmap(param.Bitmap);
nbmp.ReplaceTransparentWith(param.FullFrameBackgroundcolor);
using (var bmp = nbmp.GetBitmap())
{
int top = param.ScreenHeight - (param.Bitmap.Height + param.BottomMargin);
int left = (param.ScreenWidth - param.Bitmap.Width) / 2;
var b = new NikseBitmap(param.ScreenWidth, param.ScreenHeight);
{
b.Fill(param.FullFrameBackgroundcolor);
using (var fullSize = b.GetBitmap())
{
if (param.Alignment == ContentAlignment.BottomLeft || param.Alignment == ContentAlignment.MiddleLeft || param.Alignment == ContentAlignment.TopLeft)
left = param.LeftRightMargin;
else if (param.Alignment == ContentAlignment.BottomRight || param.Alignment == ContentAlignment.MiddleRight || param.Alignment == ContentAlignment.TopRight)
left = param.ScreenWidth - param.Bitmap.Width - param.LeftRightMargin;
if (param.Alignment == ContentAlignment.TopLeft || param.Alignment == ContentAlignment.TopCenter || param.Alignment == ContentAlignment.TopRight)
top = param.BottomMargin;
if (param.Alignment == ContentAlignment.MiddleLeft || param.Alignment == ContentAlignment.MiddleCenter || param.Alignment == ContentAlignment.MiddleRight)
top = param.ScreenHeight - (param.Bitmap.Height / 2);
using (var g = Graphics.FromImage(fullSize))
{
g.DrawImage(bmp, left, top);
g.Dispose();
}
param.Buffer = BluRaySupPicture.CreateSupFrame(brSub, fullSize, param.FramesPerSeconds, 0, 0, ContentAlignment.BottomCenter);
}
}
}
}
else
{
param.Buffer = BluRaySupPicture.CreateSupFrame(brSub, param.Bitmap, param.FramesPerSeconds, param.BottomMargin, param.LeftRightMargin, param.Alignment);
}
}
/// <summary>
/// Create the binary stream representation of one caption
/// </summary>
/// <param name="pic">SubPicture object containing caption info - note that first Composition Number should be 0, then 2, 4, 8, etc.</param>
/// <param name="bmp">Bitmap</param>
/// <param name="fps">Frames per second</param>
/// <param name="bottomMargin">Image bottom margin</param>
/// <param name="leftOrRightMargin">Image left/right margin</param>
/// <param name="alignment">Alignment of image</param>
/// <param name="overridePosition">Position that overrides alignment</param>
/// <returns>Byte buffer containing the binary stream representation of one caption</returns>
public static byte[] CreateSupFrame(BluRaySupPicture pic, Bitmap bmp, double fps, int bottomMargin, int leftOrRightMargin, ContentAlignment alignment, Point?overridePosition = null)
{
var bm = new NikseBitmap(bmp);
var colorPalette = GetBitmapPalette(bm);
var pal = new BluRaySupPalette(colorPalette.Count);
int k = 0;
foreach (var kvp in colorPalette)
{
pal.SetColor(k, kvp.Key);
k++;
}
byte[] rleBuf = EncodeImage(bm, colorPalette);
// for some obscure reason, a packet can be a maximum 0xfffc bytes
// since 13 bytes are needed for the header("PG", PTS, DTS, ID, SIZE)
// there are only 0xffef bytes available for the packet
// since the first ODS packet needs an additional 11 bytes for info
// and the following ODS packets need 4 additional bytes, the
// first package can store only 0xffe4 RLE buffer bytes and the
// following packets can store 0xffeb RLE buffer bytes
int numAddPackets;
if (rleBuf.Length <= 0xffe4)
{
numAddPackets = 0; // no additional packets needed;
}
else
{
numAddPackets = 1 + (rleBuf.Length - 0xffe4) / 0xffeb;
}
// a typical frame consists of 8 packets. It can be enlonged by additional
// object frames
int palSize = colorPalette.Count;
var packetHeader = new byte[]
{
0x50, 0x47, // 0: "PG"
0x00, 0x00, 0x00, 0x00, // 2: PTS - presentation time stamp
0x00, 0x00, 0x00, 0x00, // 6: DTS - decoding time stamp
0x00, // 10: segment_type
0x00, 0x00 // 11: segment_length (bytes following till next PG)
};
var headerPcsStart = new byte[]
{
0x00, 0x00, 0x00, 0x00, // 0: video_width, video_height
0x10, // 4: hi nibble: frame_rate (0x10=24p), lo nibble: reserved
0x00, 0x00, // 5: composition_number (increased by start and end header)
0x80, // 7: composition_state (0x80: epoch start)
0x00, // 8: palette_update_flag (0x80), 7bit reserved
0x00, // 9: palette_id_ref (0..7)
0x01, // 10: number_of_composition_objects (0..2)
0x00, 0x00, // 11: 16bit object_id_ref
0x00, // 13: window_id_ref (0..1)
0x00, // 14: object_cropped_flag: 0x80, forced_on_flag = 0x040, 6bit reserved
0x00, 0x00, 0x00, 0x00 // 15: composition_object_horizontal_position, composition_object_vertical_position
};
var headerPcsEnd = new byte[]
{
0x00, 0x00, 0x00, 0x00, // 0: video_width, video_height
0x10, // 4: hi nibble: frame_rate (0x10=24p), lo nibble: reserved
0x00, 0x00, // 5: composition_number (increased by start and end header)
0x00, // 7: composition_state (0x00: normal)
0x00, // 8: palette_update_flag (0x80), 7bit reserved
0x00, // 9: palette_id_ref (0..7)
0x00 // 10: number_of_composition_objects (0..2)
};
var headerWds = new byte[]
{
0x01, // 0 : number of windows (currently assumed 1, 0..2 is legal)
0x00, // 1 : window id (0..1)
0x00, 0x00, 0x00, 0x00, // 2 : x-ofs, y-ofs
0x00, 0x00, 0x00, 0x00 // 6 : width, height
};
var headerOdsFirst = new byte[]
{
0x00, 0x00, // 0: object_id
0x00, // 2: object_version_number
0xC0, // 3: first_in_sequence (0x80), last_in_sequence (0x40), 6bits reserved
0x00, 0x00, 0x00, // 4: object_data_length - full RLE buffer length (including 4 bytes size info)
0x00, 0x00, 0x00, 0x00 // 7: object_width, object_height
};
var headerOdsNext = new byte[]
{
0x00, 0x00, // 0: object_id
0x00, // 2: object_version_number
0x40 // 3: first_in_sequence (0x80), last_in_sequence (0x40), 6bits reserved
};
int size = packetHeader.Length * (8 + numAddPackets);
size += headerPcsStart.Length + headerPcsEnd.Length;
size += 2 * headerWds.Length + headerOdsFirst.Length;
size += numAddPackets * headerOdsNext.Length;
size += (2 + palSize * 5) /* PDS */;
size += rleBuf.Length;
switch (alignment)
{
case ContentAlignment.BottomLeft:
pic.WindowXOffset = leftOrRightMargin;
pic.WindowYOffset = pic.Height - (bm.Height + bottomMargin);
break;
case ContentAlignment.BottomRight:
pic.WindowXOffset = pic.Width - bm.Width - bottomMargin;
pic.WindowYOffset = pic.Height - (bm.Height + leftOrRightMargin);
break;
case ContentAlignment.MiddleCenter:
pic.WindowXOffset = (pic.Width - bm.Width) / 2;
pic.WindowYOffset = (pic.Height - bm.Height) / 2;
break;
case ContentAlignment.MiddleLeft:
pic.WindowXOffset = leftOrRightMargin;
pic.WindowYOffset = (pic.Height - bm.Height) / 2;
break;
case ContentAlignment.MiddleRight:
pic.WindowXOffset = pic.Width - bm.Width - leftOrRightMargin;
pic.WindowYOffset = (pic.Height - bm.Height) / 2;
break;
case ContentAlignment.TopCenter:
pic.WindowXOffset = (pic.Width - bm.Width) / 2;
pic.WindowYOffset = bottomMargin;
break;
case ContentAlignment.TopLeft:
pic.WindowXOffset = leftOrRightMargin;
pic.WindowYOffset = bottomMargin;
break;
case ContentAlignment.TopRight:
pic.WindowXOffset = pic.Width - bm.Width - leftOrRightMargin;
pic.WindowYOffset = bottomMargin;
break;
default: // ContentAlignment.BottomCenter:
pic.WindowXOffset = (pic.Width - bm.Width) / 2;
pic.WindowYOffset = pic.Height - (bm.Height + bottomMargin);
break;
}
if (overridePosition != null &&
overridePosition.Value.X >= 0 && overridePosition.Value.X < bm.Width &&
overridePosition.Value.Y >= 0 && overridePosition.Value.Y < bm.Height)
{
pic.WindowXOffset = overridePosition.Value.X;
pic.WindowYOffset = overridePosition.Value.Y;
}
int yOfs = pic.WindowYOffset - Core.CropOfsY;
if (yOfs < 0)
{
yOfs = 0;
}
else
{
int yMax = pic.Height - pic.WindowHeight - 2 * Core.CropOfsY;
if (yOfs > yMax)
{
yOfs = yMax;
}
}
int h = pic.Height - 2 * Core.CropOfsY;
var buf = new byte[size];
int index = 0;
int fpsId = GetFpsId(fps);
/* time (in 90kHz resolution) needed to initialize (clear) the screen buffer
* based on the composition pixel rate of 256e6 bit/s - always rounded up */
int frameInitTime = (pic.Width * pic.Height * 9 + 3199) / 3200; // better use default height here
/* time (in 90kHz resolution) needed to initialize (clear) the window area
* based on the composition pixel rate of 256e6 bit/s - always rounded up
* Note: no cropping etc. -> window size == image size */
int windowInitTime = (bm.Width * bm.Height * 9 + 3199) / 3200;
/* time (in 90kHz resolution) needed to decode the image
* based on the decoding pixel rate of 128e6 bit/s - always rounded up */
int imageDecodeTime = (bm.Width * bm.Height * 9 + 1599) / 1600;
// write PCS start
packetHeader[10] = 0x16; // ID
int dts = pic.StartTimeForWrite - (frameInitTime + windowInitTime + imageDecodeTime); //int dts = pic.StartTimeForWrite - windowInitTime; ???
ToolBox.SetDWord(packetHeader, 2, pic.StartTimeForWrite); // PTS
ToolBox.SetDWord(packetHeader, 6, dts); // DTS
ToolBox.SetWord(packetHeader, 11, headerPcsStart.Length); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
ToolBox.SetWord(headerPcsStart, 0, pic.Width);
ToolBox.SetWord(headerPcsStart, 2, h); // cropped height
ToolBox.SetByte(headerPcsStart, 4, fpsId);
ToolBox.SetWord(headerPcsStart, 5, pic.CompositionNumber);
headerPcsStart[14] = (byte)(pic.IsForced ? 0x40 : 0);
ToolBox.SetWord(headerPcsStart, 15, pic.WindowXOffset);
ToolBox.SetWord(headerPcsStart, 17, yOfs);
for (int i = 0; i < headerPcsStart.Length; i++)
{
buf[index++] = headerPcsStart[i];
}
// write WDS
packetHeader[10] = 0x17; // ID
int timestamp = pic.StartTimeForWrite - windowInitTime;
ToolBox.SetDWord(packetHeader, 2, timestamp); // PTS (keep DTS)
ToolBox.SetWord(packetHeader, 11, headerWds.Length); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
ToolBox.SetWord(headerWds, 2, pic.WindowXOffset);
ToolBox.SetWord(headerWds, 4, yOfs);
ToolBox.SetWord(headerWds, 6, bm.Width);
ToolBox.SetWord(headerWds, 8, bm.Height);
for (int i = 0; i < headerWds.Length; i++)
{
buf[index++] = headerWds[i];
}
// write PDS
packetHeader[10] = 0x14; // ID
ToolBox.SetDWord(packetHeader, 2, dts); // PTS (=DTS of PCS/WDS)
ToolBox.SetDWord(packetHeader, 6, 0); // DTS (0)
ToolBox.SetWord(packetHeader, 11, (2 + palSize * 5)); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
buf[index++] = 0;
buf[index++] = 0;
for (int i = 0; i < palSize; i++)
{
buf[index++] = (byte)i; // index
buf[index++] = pal.GetY()[i]; // Y
buf[index++] = pal.GetCr()[i]; // Cr
buf[index++] = pal.GetCb()[i]; // Cb
buf[index++] = pal.GetAlpha()[i]; // Alpha
}
// write first OBJ
int bufSize = rleBuf.Length;
int rleIndex = 0;
if (bufSize > 0xffe4)
{
bufSize = 0xffe4;
}
packetHeader[10] = 0x15; // ID
timestamp = dts + imageDecodeTime;
ToolBox.SetDWord(packetHeader, 2, timestamp); // PTS
ToolBox.SetDWord(packetHeader, 6, dts); // DTS
ToolBox.SetWord(packetHeader, 11, headerOdsFirst.Length + bufSize); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
int marker = (int)((numAddPackets == 0) ? 0xC0000000 : 0x80000000);
ToolBox.SetDWord(headerOdsFirst, 3, marker | (rleBuf.Length + 4));
ToolBox.SetWord(headerOdsFirst, 7, bm.Width);
ToolBox.SetWord(headerOdsFirst, 9, bm.Height);
for (int i = 0; i < headerOdsFirst.Length; i++)
{
buf[index++] = headerOdsFirst[i];
}
for (int i = 0; i < bufSize; i++)
{
buf[index++] = rleBuf[rleIndex++];
}
// write additional OBJ packets
bufSize = rleBuf.Length - bufSize; // remaining bytes to write
for (int p = 0; p < numAddPackets; p++)
{
int psize = bufSize;
if (psize > 0xffeb)
{
psize = 0xffeb;
}
packetHeader[10] = 0x15; // ID (keep DTS & PTS)
ToolBox.SetWord(packetHeader, 11, headerOdsNext.Length + psize); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
for (int i = 0; i < headerOdsNext.Length; i++)
{
buf[index++] = headerOdsNext[i];
}
for (int i = 0; i < psize; i++)
{
buf[index++] = rleBuf[rleIndex++];
}
bufSize -= psize;
}
// write END
packetHeader[10] = 0x80; // ID
ToolBox.SetDWord(packetHeader, 6, 0); // DTS (0) (keep PTS of ODS)
ToolBox.SetWord(packetHeader, 11, 0); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
// write PCS end
packetHeader[10] = 0x16; // ID
ToolBox.SetDWord(packetHeader, 2, pic.EndTimeForWrite); // PTS
dts = pic.EndTimeForWrite - 1; //dts = pic.StartTimeForWrite - 1;
ToolBox.SetDWord(packetHeader, 6, dts); // DTS
ToolBox.SetWord(packetHeader, 11, headerPcsEnd.Length); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
ToolBox.SetWord(headerPcsEnd, 0, pic.Width);
ToolBox.SetWord(headerPcsEnd, 2, h); // cropped height
ToolBox.SetByte(headerPcsEnd, 4, fpsId);
ToolBox.SetWord(headerPcsEnd, 5, pic.CompositionNumber + 1);
for (int i = 0; i < headerPcsEnd.Length; i++)
{
buf[index++] = headerPcsEnd[i];
}
// write WDS
packetHeader[10] = 0x17; // ID
timestamp = pic.EndTimeForWrite - windowInitTime;
ToolBox.SetDWord(packetHeader, 2, timestamp); // PTS (keep DTS of PCS)
ToolBox.SetWord(packetHeader, 11, headerWds.Length); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
ToolBox.SetWord(headerWds, 2, pic.WindowXOffset);
ToolBox.SetWord(headerWds, 4, yOfs);
ToolBox.SetWord(headerWds, 6, bm.Width);
ToolBox.SetWord(headerWds, 8, bm.Height);
for (int i = 0; i < headerWds.Length; i++)
{
buf[index++] = headerWds[i];
}
// write END
packetHeader[10] = 0x80; // ID
ToolBox.SetDWord(packetHeader, 2, dts); // PTS (DTS of end PCS)
ToolBox.SetDWord(packetHeader, 6, 0); // DTS (0)
ToolBox.SetWord(packetHeader, 11, 0); // size
for (int i = 0; i < packetHeader.Length; i++)
{
buf[index++] = packetHeader[i];
}
return(buf);
}