ODDecodeFFmpegTask.h

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/**********************************************************************
 
   Audacity: A Digital Audio Editor
   Audacity(R) is copyright (c) 1999-2012 Audacity Team.
   License: GPL v2.  See License.txt.
 
   ODDecodeFFmpegTask.h
   Michael Chinen
 
******************************************************************/
 
#ifndef __ODDECODEFFMPEGTASK__
#define __ODDECODEFFMPEGTASK__
 
#ifdef EXPERIMENTAL_OD_FFMPEG
 
#include <vector>
#include "ODDecodeTask.h"
 
struct streamContext;
using Scs = ArrayOf<std::unique_ptr<streamContext>>;
using ScsPtr = std::shared_ptr<Scs>;
 
struct FFmpegContext;
class ODFileDecoder;
class WaveTrack;
using NewChannelGroup = std::vector< std::shared_ptr<WaveTrack> >;
using TrackHolders = std::vector< NewChannelGroup >;
 
class ODDecodeFFmpegTask final : public ODDecodeTask
{
public:
   using Channels = std::vector < WaveTrack* >;
   using Streams = std::vector < Channels >;
 
   static Streams FromList( const TrackHolders &channels );
 
   ODDecodeFFmpegTask(const ScsPtr &scs, Streams &&channels, const std::shared_ptr<FFmpegContext> &context, int streamIndex);
   virtual ~ODDecodeFFmpegTask();
 
   std::unique_ptr<ODTask> Clone() const override;
   ODFileDecoder* CreateFileDecoder(const wxString & fileName) override;
 
   unsigned int GetODType() override {return eODFFMPEG;}
 
protected:
   // non-owning pointers to WaveTracks:
   Streams mChannels;
 
   ScsPtr mScs;
   std::shared_ptr<FFmpegContext> mContext;
   int   mStreamIndex;
};
#endif //__ODDECODEFFMPEGTASK__
 
#endif //EXPERIMENTAL_OD_FFMPEG