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/* Project nGenEx
Destroyer Studios LLC
Copyright © 1997-2004. All Rights Reserved.
SUBSYSTEM: nGenEx.lib
FILE: AviFile.cpp
AUTHOR: John DiCamillo
OVERVIEW
========
AviFile reader / writer
*/
#include "MemDebug.h"
#include "AviFile.h"
#include <vfw.h>
#include <stdio.h>
#include <stdlib.h>
// +--------------------------------------------------------------------+
void Print(const char* fmt, ...);
// +--------------------------------------------------------------------+
AviFile::AviFile(const char* fname)
: filename(fname), fps(0), play(true), pfile(0), ps(0), ps_comp(0),
nframe(0), nsamp(0), iserr(false), frame_size(0)
{
AVIFileInit();
}
AviFile::AviFile(const char* fname, const Rect& r, int frame_rate)
: filename(fname), rect(r), fps(frame_rate), play(false), pfile(0),
ps(0), ps_comp(0), nframe(0), nsamp(0), iserr(false)
{
Print("\n\nAviFile(%s, w=%d, h=%d, f=%d FPS)\n", fname, r.w, r.h, fps);
frame_size = r.w * r.h * 3;
AVIFileInit();
HRESULT hr = AVIFileOpen(&pfile, fname, OF_WRITE|OF_CREATE, 0);
if (hr != AVIERR_OK) {
Print("AviFile - open failed. %08x\n", hr);
iserr = true;
return;
}
Print("AviFile - open successful\n");
AVISTREAMINFO strhdr;
ZeroMemory(&strhdr,sizeof(strhdr));
strhdr.fccType = streamtypeVIDEO;
strhdr.fccHandler = 0;
strhdr.dwScale = 1000 / fps;
strhdr.dwRate = 1000;
strhdr.dwSuggestedBufferSize = frame_size;
SetRect(&strhdr.rcFrame, 0, 0, r.w, r.h);
hr = AVIFileCreateStream(pfile, &ps, &strhdr);
if (hr != AVIERR_OK) {
Print("AviFile - create stream failed. %08x\n", hr);
iserr = true;
return;
}
Print("AviFile - create stream successful\n");
AVICOMPRESSOPTIONS opts;
ZeroMemory(&opts,sizeof(opts));
opts.fccType = streamtypeVIDEO;
//opts.fccHandler = mmioFOURCC('W','M','V','3');
opts.fccHandler = mmioFOURCC('D','I','B',' '); // (full frames)
opts.dwFlags = 8;
hr = AVIMakeCompressedStream(&ps_comp, ps, &opts, 0);
if (hr != AVIERR_OK) {
Print("AviFile - compressed stream failed. %08x\n", hr);
iserr=true;
return;
}
Print("AviFile - make compressed stream successful\n");
BITMAPINFOHEADER bmih;
ZeroMemory(&bmih, sizeof(BITMAPINFOHEADER));
bmih.biSize = sizeof(BITMAPINFOHEADER);
bmih.biBitCount = 24;
bmih.biCompression = BI_RGB;
bmih.biWidth = rect.w;
bmih.biHeight = rect.h;
bmih.biPlanes = 1;
bmih.biSizeImage = frame_size;
hr = AVIStreamSetFormat(ps_comp, 0, &bmih, sizeof(BITMAPINFOHEADER));
if (hr != AVIERR_OK) {
Print("AviFile - stream format failed. %08x\n", hr);
iserr=true;
return;
}
Print("AviFile - stream format successful\n");
}
AviFile::~AviFile()
{
if (!play) {
Print("*** Closing AVI file '%s' with %d frames\n", (const char*) filename, nframe);
}
if (ps_comp) AVIStreamRelease(ps_comp);
if (ps) AVIStreamRelease(ps);
if (pfile) AVIFileRelease(pfile);
AVIFileExit();
}
// +--------------------------------------------------------------------+
//
// Note that AVI frames use DIB format - Y is inverted.
// So we need to flip the native bmp before sending to the
// file.
HRESULT
AviFile::AddFrame(const Bitmap& bmp)
{
HRESULT hr = E_FAIL;
if (!iserr && !play && bmp.IsHighColor() && bmp.Width() == rect.w && bmp.Height() == rect.h) {
int w = bmp.Width();
int h = bmp.Height();
BYTE* buffer = new(__FILE__,__LINE__) BYTE[frame_size];
BYTE* dst = buffer;
for (int y = 0; y < bmp.Height(); y++) {
Color* src = bmp.HiPixels() + (h - 1 - y) * w;
for (int x = 0; x < bmp.Width(); x++) {
*dst++ = (BYTE) src->Blue();
*dst++ = (BYTE) src->Green();
*dst++ = (BYTE) src->Red();
src++;
}
}
hr = AVIStreamWrite(ps_comp, nframe, 1, buffer, frame_size, AVIIF_KEYFRAME, 0, 0);
if (SUCCEEDED(hr)) {
nframe++;
}
else {
Print("AVIStreamWriteFile failed. %08x\n", hr);
iserr = true;
}
delete [] buffer;
}
return hr;
}
// +--------------------------------------------------------------------+
HRESULT
AviFile::GetFrame(double seconds, Bitmap& bmp)
{
HRESULT hr = E_FAIL;
return hr;
}
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