forked from mia/Aegisub
81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
// 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 "indexing.h"
|
|
#include "utils.h"
|
|
#include "ffms.h"
|
|
|
|
class AudioBase {
|
|
protected:
|
|
uint8_t *DecodingBuffer;
|
|
FrameInfoVector Frames;
|
|
AVCodecContext *CodecContext;
|
|
AudioProperties AP;
|
|
|
|
size_t FindClosestAudioKeyFrame(int64_t Sample);
|
|
public:
|
|
AudioBase();
|
|
~AudioBase();
|
|
|
|
const AudioProperties& GetAudioProperties() { return AP; }
|
|
virtual int GetAudio(void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize) = 0;
|
|
};
|
|
|
|
class FFAudioSource : public AudioBase {
|
|
private:
|
|
AVFormatContext *FormatContext;
|
|
int AudioTrack;
|
|
|
|
int DecodeNextAudioBlock(uint8_t *Buf, int64_t *Count, char *ErrorMsg, unsigned MsgSize);
|
|
void Free(bool CloseCodec);
|
|
public:
|
|
FFAudioSource(const char *SourceFile, int Track, FrameIndex *TrackIndices, char *ErrorMsg, unsigned MsgSize);
|
|
~FFAudioSource();
|
|
|
|
int GetAudio(void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize);
|
|
};
|
|
|
|
class MatroskaAudioSource : public AudioBase {
|
|
private:
|
|
MatroskaFile *MF;
|
|
MatroskaReaderContext MC;
|
|
CompressedStream *CS;
|
|
char ErrorMessage[256];
|
|
|
|
int DecodeNextAudioBlock(uint8_t *Buf, int64_t *Count, uint64_t FilePos, unsigned int FrameSize, char *ErrorMsg, unsigned MsgSize);
|
|
void Free(bool CloseCodec);
|
|
public:
|
|
MatroskaAudioSource(const char *SourceFile, int Track, FrameIndex *TrackIndices, char *ErrorMsg, unsigned MsgSize);
|
|
~MatroskaAudioSource();
|
|
|
|
int GetAudio(void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize);
|
|
};
|
|
|
|
#endif
|