mirrors/bgfx
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Jiggling bits until avi writer unbreaks.

Browse Source
This commit is contained in:
bkaradzic 2012-12-31 23:11:28 -08:00
parent ec099acbd7
commit 21e78cf7b0
1 changed files with 48 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
examples/common/aviwriter.h
View File

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