winamp/Src/Plugins/Library/ml_pmp/transcoder.h

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2024-09-24 12:54:57 +00:00
#ifndef _TRANSCODER_H_
#define _TRANSCODER_H_
class Transcoder {
protected:
Transcoder(){}
virtual ~Transcoder(){}
public:
// done at init()
virtual void LoadConfigProfile(wchar_t *profile)=0; // deprecated, do not call
virtual void AddAcceptableFormat(wchar_t *format)=0; // eg, L"mp3" or L"wma"
virtual void AddAcceptableFormat(unsigned int format)=0; // eg, mmioFOURCC('M','4','A',' ')
// done when file is added to transfer queue
// returns:
// -1 for can't transcode
// output file size estimate if can transcode
// if ext is supplied, it should be a buffer with space for 5 characters, and will be filled with
// the output file type file extention, eg, L".mp3"
virtual int CanTranscode(wchar_t *file, wchar_t *ext = NULL, int length = -1)=0;
// false if no transcoding needed
virtual bool ShouldTranscode(wchar_t *file)=0;
// done just before transfer OR in background after file is added to queue
// extention is added to outputFile, allow 5 extra chars
// callback, callbackcontext and killswitch should be similar to those passed by ml_pmp
// return 0 for success, -1 for failed or cancelled
virtual int TranscodeFile(wchar_t *inputFile, wchar_t *outputFile, int *killswitch, void (*callback)(void * callbackContext, wchar_t * status), void* callbackContext, wchar_t * caption=L"Transcoding %d%%")=0;
// get a filename which can be used as a staging area.
// ext should be for example L".mp3"
// make sure filename is a buffer at least MAX_PATH characters long.
virtual void GetTempFilePath(const wchar_t *ext, wchar_t *filename)=0;
};
#endif //_TRANSCODER_H_