mirror of https://github.com/bkaradzic/bgfx
Jiggling bits until avi writer unbreaks.
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bkaradzic
parent
ec099acbd7
commit
21e78cf7b0
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@ -16,6 +16,7 @@ struct AviWriter
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AviWriter()
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: m_frame(NULL)
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, m_frameSize(0)
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, m_numFrames(0)
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, m_width(0)
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, m_height(0)
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, m_yflip(false)
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@ -31,6 +32,7 @@ struct AviWriter
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m_frameSize = _width * _height * 3;
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m_frame = new uint8_t[m_frameSize + 8];
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m_numFrames = 0;
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m_width = _width;
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m_height = _height;
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@ -44,13 +46,14 @@ struct AviWriter
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bx::write(&mem, m_frameSize);
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bx::write(&m_writer, BX_MAKEFOURCC('R', 'I', 'F', 'F') );
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m_riffSizeOffset = m_writer.seek();
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bx::write(&m_writer, UINT32_C(0) );
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bx::write(&m_writer, BX_MAKEFOURCC('A', 'V', 'I', ' ') );
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// AVI RIFF Form http://msdn.microsoft.com/en-us/library/ms899422.aspx
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bx::write(&m_writer, BX_MAKEFOURCC('L', 'I', 'S', 'T') );
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bx::write(&m_writer, UINT32_C(196) );
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bx::write(&m_writer, UINT32_C(192) );
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bx::write(&m_writer, BX_MAKEFOURCC('h', 'd', 'r', 'l') );
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// AVI Main Header http://msdn.microsoft.com/en-us/library/ms779632.aspx
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@ -59,8 +62,11 @@ struct AviWriter
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bx::write(&m_writer, UINT32_C(0) ); // dwMicroSecPerFrame
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bx::write(&m_writer, UINT32_C(0) ); // dwMaxBytesPerSec
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bx::write(&m_writer, UINT32_C(0) ); // dwPaddingGranularity
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bx::write(&m_writer, UINT32_C(0) ); // dwFlags
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bx::write(&m_writer, UINT32_C(0x101) ); // dwFlags
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m_totalFramesOffset = m_writer.seek();
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bx::write(&m_writer, UINT32_C(0) ); // dwTotalFrames
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bx::write(&m_writer, UINT32_C(0) ); // dwInitialFrames
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bx::write(&m_writer, UINT32_C(1) ); // dwStreams
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bx::write(&m_writer, UINT32_C(0) ); // dwSuggestedBufferSize
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@ -72,7 +78,7 @@ struct AviWriter
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bx::write(&m_writer, UINT32_C(0) ); // dwReserved3
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bx::write(&m_writer, BX_MAKEFOURCC('L', 'I', 'S', 'T') );
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bx::write(&m_writer, UINT32_C(120) );
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bx::write(&m_writer, UINT32_C(116) );
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bx::write(&m_writer, BX_MAKEFOURCC('s', 't', 'r', 'l') );
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// AVISTREAMHEADER Structure http://msdn.microsoft.com/en-us/library/ms779638.aspx
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@ -88,17 +94,20 @@ struct AviWriter
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bx::write(&m_writer, UINT32_C(1000) ); // dwScale
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bx::write(&m_writer, 1000*_fps); // dwRate
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bx::write(&m_writer, UINT32_C(0) ); // dwStart
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m_lengthOffset = m_writer.seek();
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bx::write(&m_writer, UINT32_C(0) ); // dwLength
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bx::write(&m_writer, UINT32_C(0) ); // dwSuggestedBufferSize
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bx::write(&m_writer, UINT32_C(0) ); // dwQuality
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bx::write(&m_writer, m_frameSize); // dwSuggestedBufferSize
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bx::write(&m_writer, UINT32_MAX); // dwQuality
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bx::write(&m_writer, UINT32_C(0) ); // dwSampleSize
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bx::write(&m_writer, INT16_C(0) ); // rcFrame.left
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bx::write(&m_writer, INT16_C(0) ); // rcFrame.top
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bx::write(&m_writer, INT16_C(0) ); // rcFrame.right
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bx::write(&m_writer, INT16_C(0) ); // rcFrame.bottom
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bx::write(&m_writer, uint16_t(_width) ); // rcFrame.right
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bx::write(&m_writer, uint16_t(_height) );// rcFrame.bottom
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bx::write(&m_writer, BX_MAKEFOURCC('s', 't', 'r', 'f') );
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bx::write(&m_writer, UINT32_C(44) );
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bx::write(&m_writer, UINT32_C(40) );
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// BITMAPINFOHEADER structure http://msdn.microsoft.com/en-us/library/windows/desktop/dd318229%28v=vs.85%29.aspx
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bx::write(&m_writer, UINT32_C(40) ); // biSize
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@ -107,14 +116,15 @@ struct AviWriter
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bx::write(&m_writer, UINT16_C(1) ); // biPlanes
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bx::write(&m_writer, UINT16_C(24) ); // biBitCount
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bx::write(&m_writer, UINT32_C(0) ); // biCompression
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bx::write(&m_writer, UINT32_C(0) ); // biSizeImage
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bx::write(&m_writer, m_frameSize); // biSizeImage
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bx::write(&m_writer, UINT32_C(0) ); // biXPelsPerMeter
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bx::write(&m_writer, UINT32_C(0) ); // biYPelsPerMeter
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bx::write(&m_writer, UINT32_C(0) ); // biClrUsed
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bx::write(&m_writer, UINT32_C(0) ); // biClrImportant
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bx::write(&m_writer, UINT32_C(0) );
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bx::write(&m_writer, BX_MAKEFOURCC('L', 'I', 'S', 'T') );
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m_moviListOffset = m_writer.seek();
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bx::write(&m_writer, UINT32_C(0) );
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bx::write(&m_writer, BX_MAKEFOURCC('m', 'o', 'v', 'i') );
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@ -125,6 +135,28 @@ struct AviWriter
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{
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if (NULL != m_frame)
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{
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int64_t pos = m_writer.seek();
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m_writer.seek(m_moviListOffset, bx::Whence::Begin);
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bx::write(&m_writer, uint32_t(pos-m_moviListOffset+4) );
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m_writer.seek(pos, bx::Whence::Begin);
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bx::write(&m_writer, BX_MAKEFOURCC('i', 'd', 'x', '1') );
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bx::write(&m_writer, UINT32_C(16) );
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bx::write(&m_writer, BX_MAKEFOURCC('0', '0', 'd', 'b') );
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bx::write(&m_writer, UINT32_C(16) );
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bx::write(&m_writer, UINT32_C(4) );
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bx::write(&m_writer, m_frameSize);
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pos = m_writer.seek();
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m_writer.seek(m_riffSizeOffset, bx::Whence::Begin);
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bx::write(&m_writer, uint32_t(pos-m_riffSizeOffset+4) );
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m_writer.seek(m_totalFramesOffset, bx::Whence::Begin);
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bx::write(&m_writer, m_numFrames);
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m_writer.seek(m_lengthOffset, bx::Whence::Begin);
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bx::write(&m_writer, m_numFrames);
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m_writer.close();
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delete [] m_frame;
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@ -137,6 +169,7 @@ struct AviWriter
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{
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if (NULL != m_frame)
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{
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++m_numFrames;
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uint32_t width = m_width;
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uint32_t height = m_height;
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@ -176,8 +209,13 @@ struct AviWriter
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}
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bx::CrtFileWriter m_writer;
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int64_t m_riffSizeOffset;
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int64_t m_totalFramesOffset;
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int64_t m_lengthOffset;
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int64_t m_moviListOffset;
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uint8_t* m_frame;
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uint32_t m_frameSize;
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uint32_t m_numFrames;
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uint32_t m_width;
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uint32_t m_height;
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bool m_yflip;
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