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audiosource.h

//  Copyright (c) 2007-2009 Fredrik Mellbin
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.

#ifndef FFAUDIOSOURCE_H
#define FFAUDIOSOURCE_H

extern "C" {
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
}

#include <vector>
#include <list>
#include <sstream>
#include <memory>
#include "indexing.h"
#include "utils.h"
#include "ffms.h"

#ifdef HAALISOURCE
#     define WIN32_LEAN_AND_MEAN
#     define _WIN32_DCOM
#     include <windows.h>
#     include <tchar.h>
#     include <atlbase.h>
#     include <dshow.h>
#     include <initguid.h>
#     include "CoParser.h"
#     include "guids.h"
#endif

00049 class TAudioBlock {
public:
      int64_t Start;
      int64_t Samples;
      uint8_t *Data;

      TAudioBlock(int64_t Start, int64_t Samples, uint8_t *SrcData, size_t SrcBytes);
      ~TAudioBlock();
};

00059 class TAudioCache : private std::list<TAudioBlock *> {
private:
      int MaxCacheBlocks;
      int BytesPerSample;
      static bool AudioBlockComp(TAudioBlock *A, TAudioBlock *B);
public:
      TAudioCache();
      ~TAudioCache();
      void Initialize(int BytesPerSample, int MaxCacheBlocks);
      void CacheBlock(int64_t Start, int64_t Samples, uint8_t *SrcData);
      int64_t FillRequest(int64_t Start, int64_t Samples, uint8_t *Dst);
};

00072 class FFMS_AudioSource {
friend class FFSourceResources<FFMS_AudioSource>;
protected:
      TAudioCache AudioCache;
      int64_t CurrentSample;
      std::vector<uint8_t> DecodingBuffer;
      FFMS_Track Frames;
      AVCodecContext *CodecContext;
      int AudioTrack;
      FFMS_AudioProperties AP;

      virtual void Free(bool CloseCodec) = 0;
public:
      FFMS_AudioSource(const char *SourceFile, FFMS_Index *Index, int Track);
      virtual ~FFMS_AudioSource();
      FFMS_Track *GetTrack() { return &Frames; }
      const FFMS_AudioProperties& GetAudioProperties() { return AP; }
      virtual void GetAudio(void *Buf, int64_t Start, int64_t Count) = 0;
      void GetAudioCheck(int64_t Start, int64_t Count);
};

00093 class FFLAVFAudio : public FFMS_AudioSource {
private:
      AVFormatContext *FormatContext;
      FFSourceResources<FFMS_AudioSource> Res;

      void DecodeNextAudioBlock(int64_t *Count);
      void Free(bool CloseCodec);
public:
      FFLAVFAudio(const char *SourceFile, int Track, FFMS_Index *Index);
      void GetAudio(void *Buf, int64_t Start, int64_t Count);
};

00105 class FFMatroskaAudio : public FFMS_AudioSource {
private:
      MatroskaFile *MF;
      MatroskaReaderContext MC;
    CompressedStream *CS;
      char ErrorMessage[256];
      FFSourceResources<FFMS_AudioSource> Res;
      size_t PacketNumber;

      void DecodeNextAudioBlock(int64_t *Count);
      void Free(bool CloseCodec);
public:
      FFMatroskaAudio(const char *SourceFile, int Track, FFMS_Index *Index);
      void GetAudio(void *Buf, int64_t Start, int64_t Count);
};

#ifdef HAALISOURCE

class FFHaaliAudio : public FFMS_AudioSource {
private:
      CComPtr<IMMContainer> pMMC;
      std::vector<uint8_t> CodecPrivate;
      FFSourceResources<FFMS_AudioSource> Res;

      void DecodeNextAudioBlock(int64_t *AFirstStartTime, int64_t *Count);
      void Free(bool CloseCodec);
public:
      FFHaaliAudio(const char *SourceFile, int Track, FFMS_Index *Index, enum FFMS_Sources SourceMode);
      void GetAudio(void *Buf, int64_t Start, int64_t Count);
};

#endif // HAALISOURCE

#endif

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