151 lines
5.7 KiB
C++
151 lines
5.7 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 FFMS_H
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#define FFMS_H
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#include <stdint.h>
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#include <libavutil/pixfmt.h>
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#ifdef __cplusplus
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# define EXTERN_C extern "C"
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#else
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# define EXTERN_C
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#endif
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#ifdef _WIN32
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# define FFMS_CC __stdcall
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# ifdef FFMS_EXPORTS
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# define FFMS_API(ret) EXTERN_C __declspec(dllexport) ret FFMS_CC
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# else
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# define FFMS_API(ret) EXTERN_C __declspec(dllimport) ret FFMS_CC
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# endif
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#else
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# define FFMS_CC
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# define FFMS_API(ret) EXTERN_C ret FFMS_CC
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#endif
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class VideoBase;
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class AudioBase;
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class FrameIndex;
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class FrameInfoVector;
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typedef int (FFMS_CC *IndexCallback)(int State, int64_t Current, int64_t Total, void *Private);
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enum FFMS_SeekMode {
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FFMS_SEEK_LINEAR_NO_RW = -1,
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FFMS_SEEK_LINEAR = 0,
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FFMS_SEEK_NORMAL = 1,
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FFMS_SEEK_UNSAFE = 2,
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FFMS_SEEK_AGGRESSIVE = 3,
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};
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enum FFMS_TrackType {
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FFMS_TYPE_VIDEO = 0,
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FFMS_TYPE_AUDIO = 1,
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};
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// This is a subset of the original AVFrame only containing the most used parts.
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// Even if it might seem like a good idea to cast it back to a full AVFrame to
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// access a few more values you really shouldn't do that. Only the values present
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// in AVFrameLite are actually updated when postprocessing is used.
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struct AVFrameLite {
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uint8_t *Data[4];
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int Linesize[4];
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uint8_t *Base[4];
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int KeyFrame;
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int PictType;
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};
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struct TrackTimeBase {
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int64_t Num;
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int64_t Den;
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};
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class FrameInfo {
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public:
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int64_t DTS;
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int64_t SampleStart;
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int64_t FilePos;
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unsigned int FrameSize;
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bool KeyFrame;
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FrameInfo(int64_t DTS, bool KeyFrame);
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FrameInfo(int64_t DTS, int64_t SampleStart, bool KeyFrame);
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FrameInfo(int64_t SampleStart, int64_t FilePos, unsigned int FrameSize, bool KeyFrame);
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};
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struct VideoProperties {
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int Width;
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int Height;
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int FPSDenominator;
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int FPSNumerator;
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int NumFrames;
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PixelFormat VPixelFormat;
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int SARNum;
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int SARDen;
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int CropTop;
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int CropBottom;
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int CropLeft;
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int CropRight;
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double FirstTime;
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double LastTime;
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};
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struct AudioProperties {
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int SampleRate;
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int Channels;
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int BitsPerSample;
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bool Float;
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int64_t NumSamples;
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};
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// Most functions return 0 on success
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// Functions without error message output can be assumed to never fail
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FFMS_API(void) FFMS_Init();
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FFMS_API(void) FFMS_NoLog();
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FFMS_API(VideoBase *) FFMS_CreateVideoSource(const char *SourceFile, int Track, FrameIndex *TrackIndices, const char *PP, int Threads, int SeekMode, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(AudioBase *) FFMS_CreateAudioSource(const char *SourceFile, int Track, FrameIndex *TrackIndices, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(void) FFMS_DestroyVideoSource(VideoBase *VB);
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FFMS_API(void) FFMS_DestroyAudioSource(AudioBase *AB);
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FFMS_API(const VideoProperties *) FFMS_GetVideoProperties(VideoBase *VB);
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FFMS_API(const AudioProperties *) FFMS_GetAudioProperties(AudioBase *AB);
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FFMS_API(const AVFrameLite *) FFMS_GetFrame(VideoBase *VB, int n, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(const AVFrameLite *) FFMS_GetFrameByTime(VideoBase *VB, double Time, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(int) FFMS_GetAudio(AudioBase *AB, void *Buf, int64_t Start, int64_t Count, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(int) FFMS_SetOutputFormat(VideoBase *VB, int TargetFormat, int Width, int Height, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(void) FFMS_ResetOutputFormat(VideoBase *VB);
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FFMS_API(void) FFMS_DestroyFrameIndex(FrameIndex *FI);
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FFMS_API(int) FFMS_GetFirstTrackOfType(FrameIndex *TrackIndices, int TrackType, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(int) FFMS_GetNumTracks(FrameIndex *TrackIndices);
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FFMS_API(int) FFMS_GetTrackType(FrameInfoVector *FIV);
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FFMS_API(int) FFMS_GetNumFrames(FrameInfoVector *FIV);
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FFMS_API(const FrameInfo *) FFMS_GetFrameInfo(FrameInfoVector *FIV, int Frame, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(FrameInfoVector *) FFMS_GetTITrackIndex(FrameIndex *TrackIndices, int Track, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(FrameInfoVector *) FFMS_GetVSTrackIndex(VideoBase *VB);
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FFMS_API(FrameInfoVector *) FFMS_GetASTrackIndex(AudioBase *AB);
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FFMS_API(int) FFMS_FindClosestKeyFrame(FrameInfoVector *FIV, int Frame, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(const TrackTimeBase *) FFMS_GetTimeBase(FrameInfoVector *FIV);
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FFMS_API(int) FFMS_WriteTimecodes(FrameInfoVector *FIV, const char *TimecodeFile, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(FrameIndex *) FFMS_MakeIndex(const char *SourceFile, int IndexMask, int DumpMask, const char *AudioFile, bool IgnoreDecodeErrors, IndexCallback IP, void *Private, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(FrameIndex *) FFMS_ReadIndex(const char *IndexFile, char *ErrorMsg, unsigned MsgSize);
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FFMS_API(int) FFMS_WriteIndex(const char *IndexFile, FrameIndex *TrackIndices, char *ErrorMsg, unsigned MsgSize);
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#endif
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