int AVIWrapper::init(char* filename, bool debug_flag)
{
this->debug_flag = debug_flag;
if (!debug_flag) avm::out.resetDebugLevels(-1);
i_avi = CreateIAviReadFile(filename);
if (i_avi == NULL || i_avi->IsValid() == false) {
fprintf(stderr, "can't CreateIAviReadFile from %s\n", filename);
return -1;
}
v_stream = i_avi->GetStream(0, AviStream::Video);
if (v_stream == NULL) {
fprintf(stderr, "Video Stream is NULL\n");
return -1;
}
width = v_stream->GetStreamInfo()->GetVideoWidth();
height = v_stream->GetStreamInfo()->GetVideoHeight();
if (debug_flag) fprintf(stderr, "width %d height %d\n", width, height);
return 0;
}
bool AviLayer::open(char *file) {
func("AviLayer::open(%s)",file);
if(_avi) close();
try {
_avi = CreateIAviReadFile(file);
}
//catch(FatalError &e) {
catch(void *p) {
error("AviLayer::open(%s)",file);
return(false);
}
if(!_avi) {
error("AviLayer::open(%s) - can't open file",file);
return (false);
}
_stream = _avi->GetStream(0, AviStream::Video);
if(!_stream) {
/* check if here we got to free something */
error("AviLayer::open(%s) - video stream not detected",file);
return(false);
}
/* this crashes on .37 avifile
verified with shezzan on 14 july 2003
_stream->SetDirection(true); */
if(!_avi->IsOpened()) {
/* check if here we got to free something */
error("Avilayer::open(%s) - can't open file",file);
return(false);
}
if(!_avi->IsValid()) {
/* check if here we got to free something */
error("AviLayer::open(%s) - invalid file",file);
return(false);
}
notice("AVI Layer :: %s",file);
if(_avi->IsRedirector())
act("supplied url is a network redirector");
try {
/*
* SetDestFmt() sets desired bit depth and color space of output picture.
* Returns zero on success, -1 if format is unsupported and
* +1 if there was no 'native' support for the depth and library
* is going to perform internal conversion of format. Most decoders
* support depths 15, 16, 24 or 32. Many of them also allow to use
* YUV formats. You can check if your particular decoder is able to decode
* into the particular YUV format by calling GetCapabilities(),
* which returns bitwise OR of supported formats.
*/
if(_stream->StartStreaming()!=0) {
/* check if here we got to free something */
error("AviLayer::open(%s) - failed to initialize decoder object",file);
return(false);
}
// _stream->GetDecoder()->SetDestFmt('YUY2');
// _stream->GetDecoder()->SetDestFmt(12,'I420');
_stream->GetDecoder()->SetDestFmt(32);
_stream->ReadFrame(false);
bh = _stream->GetDecoder()->GetDestFmt();
}
//catch(FatalError &e) {
catch(void *p) {
error("Avilib fatal error");
// e.Print();
return(false);
}
set_filename(file);
return(true);
}
