/// <summary>
/// aviファイルを閉じます
/// </summary>
public unsafe void Close()
{
UpdateIndex();
m_stream.Close();
if (m_compressed)
{
m_stream_fcc_handler = m_compvar->fccHandler;
VCM.ICSeqCompressFrameEnd(m_compvar);
VCM.ICCompressorFree(m_compvar);
using (FileStream fs = new FileStream(m_file, FileMode.Open)) {
fs.Seek(0x70, SeekOrigin.Begin);
{
byte ch3 = (byte)(m_stream_fcc_handler >> 24);
uint b = (uint)(m_stream_fcc_handler - (ch3 << 24));
byte ch2 = (byte)(b >> 16);
b = (uint)(b - (ch2 << 16));
byte ch1 = (byte)(b >> 8);
byte ch0 = (byte)(b - (ch1 << 8));
fs.Write(new byte[] { ch0, ch1, ch2, ch3 }, 0, 4);
}
fs.Seek(0xbc, SeekOrigin.Begin);
{
byte ch3 = (byte)(m_bih_compression >> 24);
uint b = (uint)(m_bih_compression - (ch3 << 24));
byte ch2 = (byte)(b >> 16);
b = (uint)(b - (ch2 << 16));
byte ch1 = (byte)(b >> 8);
byte ch0 = (byte)(b - (ch1 << 8));
fs.Write(new byte[] { ch0, ch1, ch2, ch3 }, 0, 4);
}
}
}
m_closed = true;
}
/// <summary>
/// aviファイルにフレームを1つ追加します．
/// </summary>
/// <param name="bmp"></param>
public unsafe void AddFrame(Bitmap bmp)
{
int width, height, lineSize;
BitmapData bmpDat;
if (m_is_transparent)
{
bmpDat = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height),
ImageLockMode.ReadOnly,
PixelFormat.Format32bppArgb);
}
else
{
bmpDat = bmp.LockBits(new Rectangle(0, 0, (int)bmp.Width, (int)bmp.Height),
ImageLockMode.ReadOnly,
PixelFormat.Format24bppRgb);
}
if (m_next_framedata_position != m_stream.BaseStream.Position)
{
m_stream.BaseStream.Seek(m_next_framedata_position, SeekOrigin.Begin);
}
long chunk_size = m_next_framedata_position - m_riff_position;
if ((m_current_chunk == 0 && chunk_size > m_split_sreshold) ||
(m_current_chunk > 0 && chunk_size > _THRESHOLD))
{
// AVIXリストへの書き込みに移行
UpdateIndex();
m_stream.BaseStream.Seek(m_avix_position, SeekOrigin.Begin);
Util.fwrite("RIFF", m_stream);
m_riff_position = m_stream.BaseStream.Position;
Util.WriteDWORD(0, m_stream);
Util.fwrite("AVIX", m_stream);
long current = m_stream.BaseStream.Position;
if ((current + 12) % 0x800 != 0)
{
long additional = (current + 20) % 0x800;
additional = 0x800 - ((current + 20) % 0x800);
m_junk_length = (int)additional + 20;
Util.fwrite("JUNK", m_stream);
Util.WriteDWORD((uint)additional, m_stream);
for (long ii = 0; ii < additional; ii++)
{
Util.WriteBYTE((byte)0, m_stream);
}
}
else
{
m_junk_length = 0;
}
m_junk_length = 0;
Util.fwrite("LIST", m_stream);
m_movi_position = m_stream.BaseStream.Position;
Util.WriteDWORD(0, m_stream);//後で更新するべき
Util.fwrite("movi", m_stream);
m_next_framedata_position = m_stream.BaseStream.Position;
m_std_index.aIndex.Clear();
m_std_index.SetBaseOffset((ulong)m_next_framedata_position);
m_current_chunk++;
m_super_index.nEntriesInUse++;
}
// フレームを書き込む処理
width = (int)m_main_header.dwWidth;
height = (int)m_main_header.dwHeight;
if (width != bmpDat.Width)
{
return;
}
if (height != bmpDat.Height)
{
return;
}
lineSize = bmpDat.Stride;
if (m_compressed)
{
int is_key_frame = 0;
int size = bmpDat.Stride * bmpDat.Height;
try {
IntPtr dat = VCM.ICSeqCompressFrame(m_compvar, 0, bmpDat.Scan0, &is_key_frame, &size);
if (!dat.Equals(IntPtr.Zero))
{
byte[] ndat = new byte[size];
Marshal.Copy(dat, ndat, 0, size);
m_std_index.AddIndex((uint)((ulong)m_stream.BaseStream.Position - m_std_index.qwBaseOffset) + 8, (uint)size);
Util.fwrite("00db", m_stream);
Util.WriteDWORD((uint)size, m_stream);
m_stream.Write(ndat, 0, size);
m_this_movi_size += size;
}
} catch {
}
}
else
{
m_std_index.AddIndex((uint)((ulong)m_stream.BaseStream.Position - m_std_index.qwBaseOffset) + 8, (uint)(lineSize * height));
Util.fwrite("00db", m_stream);
int address = bmpDat.Scan0.ToInt32();
byte[] bitmapData = new byte[bmpDat.Stride * bmpDat.Height];
Marshal.Copy(new IntPtr(address), bitmapData, 0, bitmapData.Length);
Util.WriteDWORD(m_main_header.dwSuggestedBufferSize, m_stream);
m_stream.Write(bitmapData);
m_this_movi_size += bitmapData.Length;
}
m_next_framedata_position = m_stream.BaseStream.Position;
_avisuperindex_entry entry = m_super_index.aIndex[m_current_chunk];
entry.dwDuration++;
m_super_index.aIndex[m_current_chunk] = entry;
m_stream.Flush();
bmp.UnlockBits(bmpDat);
}
/// <summary>
/// 指定したAVI_CONTAINER構造体にAVIファイルの情報を格納すると共に，
/// ファイルにヘッダー情報を書き込みます．
/// </summary>
/// <param name="file">書き込み対象のファイル</param>
/// <param name="scale"></param>
/// <param name="rate"></param>
/// <param name="compressed"></param>
public unsafe bool Open(string file, uint scale, uint rate, int width, int height, bool compressed, bool transparent, IntPtr hWnd)
{
#if DEBUG
Console.WriteLine("AviWriterEx.Open(string,uint,uint,bool,IntPtr)");
#endif
m_stream = new BinaryWriter(new FileStream(file, FileMode.Create, FileAccess.Write));
float fps = (float)rate / (float)scale;
m_main_header.dwMicroSecPerFrame = (uint)(1.0e6 / fps);// ! 1秒は10^6μ秒
m_main_header.dwReserved1 = 0;
m_main_header.dwFlags = 2064;
m_main_header.dwInitialFrames = 0;
m_main_header.dwStreams = 0;
m_main_header.dwScale = scale;
m_main_header.dwRate = rate;
m_main_header.dwStart = 0;
m_main_header.dwLength = 0;
m_rate = rate;
m_scale = scale;
Util.fwrite("RIFF", m_stream);
Util.WriteDWORD(0, m_stream);
Util.fwrite("AVI ", m_stream);
Util.fwrite("LIST", m_stream);
Util.WriteDWORD(0x9cc, m_stream);
Util.fwrite("hdrl", m_stream);
m_current_chunk = 0;
m_position_in_chunk = 0L;
m_std_index = new AVISTDINDEX(0L);
m_super_index = new AVISUPERINDEX(0);
m_riff_position = 0x4;
m_compressed = compressed;
m_is_transparent = transparent;
m_stream_fcc_handler = 0;
m_hwnd = hWnd;
m_file = file;
m_opened = true;
if (m_is_first)
{
int stride = 0;
using (Bitmap b = new Bitmap(width, height, m_is_transparent ? PixelFormat.Format32bppArgb : PixelFormat.Format24bppRgb)) {
BitmapData bd = b.LockBits(new Rectangle(0, 0, width, height),
ImageLockMode.ReadOnly,
b.PixelFormat);
stride = bd.Stride;
b.UnlockBits(bd);
}
m_is_first = false;
m_main_header.dwWidth = (uint)width;
m_main_header.dwHeight = (uint)height;
m_main_header.dwMaxBytesPerSec = (uint)(stride * height * frameRate);
m_main_header.dwStreams = 1;
m_main_header.dwSuggestedBufferSize = (uint)(stride * height);
m_linesize = stride;
m_stream_header.fccType = Util.mmioFOURCC("vids");
m_stream_header.fccHandler = 0;
m_stream_header.dwFlags = 0;
m_stream_header.dwReserved1 = 0;
m_stream_header.dwInitialFrames = 0;
m_stream_header.dwScale = m_scale;
m_stream_header.dwRate = m_rate;
m_stream_header.dwStart = 0;
m_stream_header.dwSuggestedBufferSize = m_main_header.dwSuggestedBufferSize;
m_stream_header.dwQuality = 0;
m_stream_header.dwSampleSize = 0;
Util.aviWriteMainHeader(m_main_header, m_stream);
Util.fwrite("LIST", m_stream);
Util.WriteDWORD(0x874, m_stream);
Util.fwrite("strl", m_stream);
Util.aviWriteStreamHeader(m_stream_header, m_main_header, m_stream);
Util.fwrite("strf", m_stream);
BITMAPINFOHEADER bih = new BITMAPINFOHEADER(); //(BITMAPINFOHEADER)Marshal.PtrToStructure( Marshal.AllocHGlobal( sizeof( BITMAPINFOHEADER ) ), typeof( BITMAPINFOHEADER ) );
bih.biSize = (uint)(Marshal.SizeOf(bih));
bih.biWidth = width;
bih.biHeight = height;
bih.biPlanes = 1;
bih.biBitCount = m_is_transparent ? (short)32 : (short)24;
bih.biCompression = 0;//BI_RGB
bih.biSizeImage = (uint)(stride * height);
bih.biXPelsPerMeter = 0;
bih.biYPelsPerMeter = 0;
bih.biClrUsed = 0;
bih.biClrImportant = 0;
if (m_compressed)
{
m_p_compvar = Marshal.AllocHGlobal(sizeof(COMPVARS));
m_compvar = (COMPVARS *)m_p_compvar.ToPointer();
byte[] buf = new byte[sizeof(COMPVARS)];
for (int i = 0; i < buf.Length; i++)
{
buf[i] = 0x0;
}
Marshal.Copy(buf, 0, m_p_compvar, buf.Length);
m_compvar->cbSize = sizeof(COMPVARS);
int ret = VCM.ICCompressorChoose(m_hwnd, 0, IntPtr.Zero, IntPtr.Zero, m_compvar, "Select Video Compressor");
if (ret == 0)
{
m_opened = false;
Marshal.FreeHGlobal(m_p_compvar);
m_stream.Close();
return(false);
}
if (m_compvar->hic != 0)
{
m_p_bitmapinfo_in = Marshal.AllocHGlobal(sizeof(BITMAPINFO));
m_bitmapinfo_in = (BITMAPINFO *)m_p_bitmapinfo_in.ToPointer();
buf = new byte[sizeof(BITMAPINFO)];
for (int i = 0; i < buf.Length; i++)
{
buf[i] = 0x0;
}
Marshal.Copy(buf, 0, m_p_bitmapinfo_in, buf.Length);
m_bitmapinfo_in->bmiHeader = bih;
uint dwSize = VCM.ICCompressGetFormatSize(m_compvar->hic, m_bitmapinfo_in);
#if DEBUG
Console.WriteLine("m_compvar->hic=" + m_compvar->hic);
Console.WriteLine("ICCompressGetFormatSize=" + dwSize);
#endif
m_p_bitmapinfo_out = Marshal.AllocHGlobal((int)dwSize);
m_bitmapinfo_out = (BITMAPINFO *)m_p_bitmapinfo_out.ToPointer();
buf = new byte[dwSize];
for (int i = 0; i < buf.Length; i++)
{
buf[i] = 0x0;
}
Marshal.Copy(buf, 0, m_p_bitmapinfo_out, buf.Length);
VCM.ICCompressGetFormat(m_compvar->hic, m_bitmapinfo_in, m_bitmapinfo_out);
m_bih_compression = m_bitmapinfo_out->bmiHeader.biCompression;
#if DEBUG
Console.WriteLine("AddFrame(Bitmap)");
Console.WriteLine(" biout.biSize=" + m_bitmapinfo_out->bmiHeader.biSize);
#endif
VCM.ICSeqCompressFrameStart(m_compvar, m_bitmapinfo_in);
bih = m_bitmapinfo_out->bmiHeader;
Util.WriteDWORD(bih.biSize, m_stream);// infoHeaderのサイズ
m_bitmapinfo_out->Write(m_stream);
}
else
{
m_compressed = false;
Util.WriteDWORD(bih.biSize, m_stream);// infoHeaderのサイズ
bih.Write(m_stream);
}
}
else
{
Util.WriteDWORD(bih.biSize, m_stream);// infoHeaderのサイズ
bih.Write(m_stream);
}
m_super_index_position = m_stream.BaseStream.Position;
Util.fwrite("indx", m_stream); //fcc
Util.WriteDWORD(0x7f8, m_stream); // cb
Util.WriteWORD((byte)0x4, m_stream); // wLongsPerEntry
Util.WriteBYTE(0x0, m_stream); // bIndexSubType
Util.WriteBYTE(Util.AVI_INDEX_OF_INDEXES, m_stream); // bIndexType
Util.WriteDWORD(0x0, m_stream); // nEntriesInUse
Util.fwrite("00db", m_stream); // dwChunkId
Util.WriteDWORD(0x0, m_stream);
Util.WriteDWORD(0x0, m_stream);
Util.WriteDWORD(0x0, m_stream);
for (int ii = 1; ii <= 126; ii++)
{
Util.WriteQWORD(0x0, m_stream);
Util.WriteDWORD(0x0, m_stream);
Util.WriteDWORD(0x0, m_stream);
}
Util.fwrite("LIST", m_stream);
Util.WriteDWORD(0x104, m_stream);
Util.fwrite("odml", m_stream);
Util.fwrite("dmlh", m_stream);
Util.WriteDWORD(0xf8, m_stream);
Util.WriteDWORD(0x0, m_stream);//ここ後で更新するべき
for (int ii = 1; ii <= 61; ii++)
{
Util.WriteDWORD(0x0, m_stream);
}
Util.fwrite("JUNK", m_stream);
Util.WriteDWORD(0x60c, m_stream);
Util.WriteDWORD(0, m_stream);//"This"が将来登録されたらやばいので
string msg = "This file was generated by [email protected];VfwBugCompatible=" + VfwBugCompatible;
const int tlen = 1544;
int remain = tlen - msg.Length;
Util.fwrite(msg, m_stream);
for (int i = 1; i <= remain; i++)
{
m_stream.Write((byte)0);
}
m_junk_length = 0xff4;
Util.fwrite("LIST", m_stream);
m_movi_position = m_stream.BaseStream.Position;
Util.WriteDWORD(0, m_stream);// call bmpQWordWrite( 0, avi%fp ) !// ******************ココの数字は一番最後に書き換える必要あり2040～2043あとdwTotalFrames（48～51）も
Util.fwrite("movi", m_stream);
m_next_framedata_position = m_stream.BaseStream.Position;
m_std_index.SetBaseOffset((ulong)m_next_framedata_position);
m_super_index.nEntriesInUse++;
}
return(true);
}
