forked from mia/Aegisub
ab8f6e6239
Rename lots of things, THIS BREAKS THE AEGISUB BUILD because of changed exported type and function names. Fixed an uninitialized memory bug that would make it crash on unindexed audio tracks in mastroska. Made ffms.h C-friendlier. Exports the start time of an audio track in the audio properties. Less signedness and type conversion warnings. Originally committed to SVN as r2940.
135 lines
4 KiB
C++
135 lines
4 KiB
C++
// Copyright (c) 2007-2009 Fredrik Mellbin
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#ifndef FFAUDIOSOURCE_H
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#define FFAUDIOSOURCE_H
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extern "C" {
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#include <libavformat/avformat.h>
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#include <libavcodec/avcodec.h>
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}
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#include <vector>
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#include <list>
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#include <memory>
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#include "indexing.h"
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#include "utils.h"
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#include "ffms.h"
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#ifdef HAALISOURCE
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# define _WIN32_DCOM
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# include <windows.h>
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# include <tchar.h>
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# include <atlbase.h>
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# include <dshow.h>
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# include "CoParser.h"
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# include <initguid.h>
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# include "guids.h"
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#endif
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class TAudioBlock {
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public:
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int64_t Start;
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int64_t Samples;
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uint8_t *Data;
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TAudioBlock(int64_t Start, int64_t Samples, uint8_t *SrcData, size_t SrcBytes);
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~TAudioBlock();
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};
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class TAudioCache : protected std::list<TAudioBlock *> {
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private:
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int MaxCacheBlocks;
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int BytesPerSample;
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static bool AudioBlockComp(TAudioBlock *A, TAudioBlock *B);
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public:
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TAudioCache();
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~TAudioCache();
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void Initialize(int BytesPerSample, int MaxCacheBlocks);
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void CacheBlock(int64_t Start, int64_t Samples, uint8_t *SrcData);
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int64_t FillRequest(int64_t Start, int64_t Samples, uint8_t *Dst);
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};
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struct FFAudio {
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protected:
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TAudioCache AudioCache;
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int64_t CurrentSample;
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uint8_t *DecodingBuffer;
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FFTrack Frames;
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AVCodecContext *CodecContext;
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TAudioProperties AP;
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size_t FindClosestAudioKeyFrame(int64_t Sample);
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public:
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FFAudio();
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~FFAudio();
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const TAudioProperties& GetTAudioProperties() { return AP; }
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virtual int GetAudio(void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize) = 0;
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};
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class FFAudioSource : public FFAudio {
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private:
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AVFormatContext *FormatContext;
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int AudioTrack;
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int DecodeNextAudioBlock(uint8_t *Buf, int64_t *Count, char *ErrorMsg, unsigned MsgSize);
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void Free(bool CloseCodec);
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public:
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FFAudioSource(const char *SourceFile, int Track, FFIndex *Index, char *ErrorMsg, unsigned MsgSize);
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~FFAudioSource();
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int GetAudio(void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize);
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};
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class MatroskaAudioSource : public FFAudio {
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private:
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MatroskaFile *MF;
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MatroskaReaderContext MC;
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CompressedStream *CS;
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char ErrorMessage[256];
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int DecodeNextAudioBlock(uint8_t *Buf, int64_t *Count, uint64_t FilePos, unsigned int FrameSize, char *ErrorMsg, unsigned MsgSize);
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void Free(bool CloseCodec);
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public:
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MatroskaAudioSource(const char *SourceFile, int Track, FFIndex *Index, char *ErrorMsg, unsigned MsgSize);
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~MatroskaAudioSource();
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int GetAudio(void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize);
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};
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#ifdef HAALISOURCE
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class HaaliAudioSource : public FFAudio {
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private:
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CComPtr<IMMContainer> pMMC;
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int DecodeNextAudioBlock(uint8_t *Buf, int64_t *Count, char *ErrorMsg, unsigned MsgSize);
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void Free(bool CloseCodec);
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public:
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HaaliAudioSource(const char *SourceFile, int Track, FFIndex *Index, char *ErrorMsg, unsigned MsgSize);
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~HaaliAudioSource();
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int GetAudio(void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize);
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};
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#endif // HAALISOURCE
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#endif
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