// Avisynth v2.5. Copyright 2002 Ben Rudiak-Gould et al. // http://www.avisynth.org // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit // http://www.gnu.org/copyleft/gpl.html . // // Linking Avisynth statically or dynamically with other modules is making a // combined work based on Avisynth. Thus, the terms and conditions of the GNU // General Public License cover the whole combination. // // As a special exception, the copyright holders of Avisynth give you // permission to link Avisynth with independent modules that communicate with // Avisynth solely through the interfaces defined in avisynth.h, regardless of the license // terms of these independent modules, and to copy and distribute the // resulting combined work under terms of your choice, provided that // every copy of the combined work is accompanied by a complete copy of // the source code of Avisynth (the version of Avisynth used to produce the // combined work), being distributed under the terms of the GNU General // Public License plus this exception. An independent module is a module // which is not derived from or based on Avisynth, such as 3rd-party filters, // import and export plugins, or graphical user interfaces. #ifndef __AVISYNTH_H__ #define __AVISYNTH_H__ enum { AVISYNTH_INTERFACE_VERSION = 3 }; /* Define all types necessary for interfacing with avisynth.dll Moved from internal.h */ // Win32 API macros, notably the types BYTE, DWORD, ULONG, etc. #include // COM interface macros #include // Raster types used by VirtualDub & Avisynth #define in64 (__int64)(unsigned short) typedef unsigned long Pixel; // this will break on 64-bit machines! typedef unsigned long Pixel32; typedef unsigned char Pixel8; typedef long PixCoord; typedef long PixDim; typedef long PixOffset; /* Compiler-specific crap */ // Tell MSVC to stop precompiling here #ifdef _MSC_VER #pragma hdrstop #endif // Set up debugging macros for MS compilers; for others, step down to the // standard interface #ifdef _MSC_VER #include #else #define _RPT0(a,b) ((void)0) #define _RPT1(a,b,c) ((void)0) #define _RPT2(a,b,c,d) ((void)0) #define _RPT3(a,b,c,d,e) ((void)0) #define _RPT4(a,b,c,d,e,f) ((void)0) #define _ASSERTE(x) assert(x) #include #endif // I had problems with Premiere wanting 1-byte alignment for its structures, // so I now set the Avisynth struct alignment explicitly here. #pragma pack(push,8) #define FRAME_ALIGN 16 // Default frame alignment is 16 bytes, to help P4, when using SSE2 // The VideoInfo struct holds global information about a clip (i.e. // information that does not depend on the frame number). The GetVideoInfo // method in IClip returns this struct. // Audio Sample information typedef float SFLOAT; enum {SAMPLE_INT8 = 1<<0, SAMPLE_INT16 = 1<<1, SAMPLE_INT24 = 1<<2, // Int24 is a very stupid thing to code, but it's supported by some hardware. SAMPLE_INT32 = 1<<3, SAMPLE_FLOAT = 1<<4}; enum { PLANAR_Y=1<<0, PLANAR_U=1<<1, PLANAR_V=1<<2, PLANAR_ALIGNED=1<<3, PLANAR_Y_ALIGNED=PLANAR_Y|PLANAR_ALIGNED, PLANAR_U_ALIGNED=PLANAR_U|PLANAR_ALIGNED, PLANAR_V_ALIGNED=PLANAR_V|PLANAR_ALIGNED, }; class AvisynthError /* exception */ { public: const char* const msg; AvisynthError(const char* _msg) : msg(_msg) {} }; struct VideoInfo { int width, height; // width=0 means no video unsigned fps_numerator, fps_denominator; int num_frames; // This is more extensible than previous versions. More properties can be added seeminglesly. // Colorspace properties. enum { CS_BGR = 1<<28, CS_YUV = 1<<29, CS_INTERLEAVED = 1<<30, CS_PLANAR = 1<<31 }; // Specific colorformats enum { CS_UNKNOWN = 0, CS_BGR24 = 1<<0 | CS_BGR | CS_INTERLEAVED, CS_BGR32 = 1<<1 | CS_BGR | CS_INTERLEAVED, CS_YUY2 = 1<<2 | CS_YUV | CS_INTERLEAVED, CS_YV12 = 1<<3 | CS_YUV | CS_PLANAR, // y-v-u, 4:2:0 planar CS_I420 = 1<<4 | CS_YUV | CS_PLANAR, // y-u-v, 4:2:0 planar CS_IYUV = 1<<4 | CS_YUV | CS_PLANAR, // same as above }; int pixel_type; // changed to int as of 2.5 int audio_samples_per_second; // 0 means no audio int sample_type; // as of 2.5 __int64 num_audio_samples; // changed as of 2.5 int nchannels; // as of 2.5 // Imagetype properties int image_type; enum { IT_BFF = 1<<0, IT_TFF = 1<<1, IT_FIELDBASED = 1<<2 }; // useful functions of the above bool HasVideo() const { return (width!=0); } bool HasAudio() const { return (audio_samples_per_second!=0); } bool IsRGB() const { return !!(pixel_type&CS_BGR); } bool IsRGB24() const { return (pixel_type&CS_BGR24)==CS_BGR24; } // Clear out additional properties bool IsRGB32() const { return (pixel_type & CS_BGR32) == CS_BGR32 ; } bool IsYUV() const { return !!(pixel_type&CS_YUV ); } bool IsYUY2() const { return (pixel_type & CS_YUY2) == CS_YUY2; } bool IsYV12() const { return ((pixel_type & CS_YV12) == CS_YV12)||((pixel_type & CS_I420) == CS_I420); } bool IsColorSpace(int c_space) const { return ((pixel_type & c_space) == c_space); } bool Is(int property) const { return ((pixel_type & property)==property ); } bool IsPlanar() const { return !!(pixel_type & CS_PLANAR); } bool IsFieldBased() const { return !!(image_type & IT_FIELDBASED); } bool IsParityKnown() const { return ((image_type & IT_FIELDBASED)&&(image_type & (IT_BFF|IT_TFF))); } bool IsBFF() const { return !!(image_type & IT_BFF); } bool IsTFF() const { return !!(image_type & IT_TFF); } bool IsVPlaneFirst() const {return ((pixel_type & CS_YV12) == CS_YV12); } // Don't use this int BytesFromPixels(int pixels) const { return pixels * (BitsPerPixel()>>3); } // Will not work on planar images, but will return only luma planes int RowSize() const { return BytesFromPixels(width); } // Also only returns first plane on planar images int BMPSize() const { if (IsPlanar()) {int p = height * ((RowSize()+3) & ~3); p+=p>>1; return p; } return height * ((RowSize()+3) & ~3); } __int64 AudioSamplesFromFrames(__int64 frames) const { return (fps_numerator && HasVideo()) ? ((__int64)(frames) * audio_samples_per_second * fps_denominator / fps_numerator) : 0; } int FramesFromAudioSamples(__int64 samples) const { return (fps_denominator && HasAudio()) ? (int)((samples * (__int64)fps_numerator)/((__int64)fps_denominator * (__int64)audio_samples_per_second)) : 0; } __int64 AudioSamplesFromBytes(__int64 bytes) const { return HasAudio() ? bytes / BytesPerAudioSample() : 0; } __int64 BytesFromAudioSamples(__int64 samples) const { return samples * BytesPerAudioSample(); } int AudioChannels() const { return HasAudio() ? nchannels : 0; } int SampleType() const{ return sample_type;} bool IsSampleType(int testtype) const{ return !!(sample_type&testtype);} int SamplesPerSecond() const { return audio_samples_per_second; } int BytesPerAudioSample() const { return nchannels*BytesPerChannelSample();} void SetFieldBased(bool isfieldbased) { if (isfieldbased) image_type|=IT_FIELDBASED; else image_type&=~IT_FIELDBASED; } void Set(int property) { image_type|=property; } void Clear(int property) { image_type&=~property; } int BitsPerPixel() const { switch (pixel_type) { case CS_BGR24: return 24; case CS_BGR32: return 32; case CS_YUY2: return 16; case CS_YV12: case CS_I420: return 12; default: return 0; } } int BytesPerChannelSample() const { switch (sample_type) { case SAMPLE_INT8: return sizeof(signed char); case SAMPLE_INT16: return sizeof(signed short); case SAMPLE_INT24: return 3; case SAMPLE_INT32: return sizeof(signed int); case SAMPLE_FLOAT: return sizeof(SFLOAT); default: _ASSERTE("Sample type not recognized!"); return 0; } } // useful mutator void SetFPS(unsigned numerator, unsigned denominator) { if ((numerator == 0) || (denominator == 0)) { fps_numerator = 0; fps_denominator = 1; } else { unsigned x=numerator, y=denominator; while (y) { // find gcd unsigned t = x%y; x = y; y = t; } fps_numerator = numerator/x; fps_denominator = denominator/x; } } // Range protected multiply-divide of FPS void MulDivFPS(unsigned multiplier, unsigned divisor) { unsigned __int64 numerator = UInt32x32To64(fps_numerator, multiplier); unsigned __int64 denominator = UInt32x32To64(fps_denominator, divisor); unsigned __int64 x=numerator, y=denominator; while (y) { // find gcd unsigned __int64 t = x%y; x = y; y = t; } numerator /= x; // normalize denominator /= x; unsigned __int64 temp = numerator | denominator; // Just looking top bit unsigned u = 0; while (temp & 0xffffffff80000000) { // or perhaps > 16777216*2 temp = Int64ShrlMod32(temp, 1); u++; } if (u) { // Scale to fit const unsigned round = 1 << (u-1); SetFPS( (unsigned)Int64ShrlMod32(numerator + round, u), (unsigned)Int64ShrlMod32(denominator + round, u) ); } else { fps_numerator = (unsigned)numerator; fps_denominator = (unsigned)denominator; } } // Test for same colorspace bool IsSameColorspace(const VideoInfo& vi) const { if (vi.pixel_type == pixel_type) return TRUE; if (IsYV12() && vi.IsYV12()) return TRUE; return FALSE; } }; // VideoFrameBuffer holds information about a memory block which is used // for video data. For efficiency, instances of this class are not deleted // when the refcount reaches zero; instead they're stored in a linked list // to be reused. The instances are deleted when the corresponding AVS // file is closed. class VideoFrameBuffer { BYTE* const data; const int data_size; // sequence_number is incremented every time the buffer is changed, so // that stale views can tell they're no longer valid. long sequence_number; friend class VideoFrame; friend class Cache; friend class ScriptEnvironment; long refcount; public: VideoFrameBuffer(int size); VideoFrameBuffer(); ~VideoFrameBuffer(); const BYTE* GetReadPtr() const { return data; } BYTE* GetWritePtr() { ++sequence_number; return data; } int GetDataSize() { return data_size; } int GetSequenceNumber() { return sequence_number; } int GetRefcount() { return refcount; } }; class IClip; class PClip; class PVideoFrame; class IScriptEnvironment; class AVSValue; // VideoFrame holds a "window" into a VideoFrameBuffer. Operator new // is overloaded to recycle class instances. class VideoFrame { int refcount; VideoFrameBuffer* const vfb; const int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture. friend class PVideoFrame; void AddRef() { InterlockedIncrement((long *)&refcount); } void Release() { if (refcount==1) InterlockedDecrement(&vfb->refcount); InterlockedDecrement((long *)&refcount); } friend class ScriptEnvironment; friend class Cache; VideoFrame(VideoFrameBuffer* _vfb, int _offset, int _pitch, int _row_size, int _height); VideoFrame(VideoFrameBuffer* _vfb, int _offset, int _pitch, int _row_size, int _height, int _offsetU, int _offsetV, int _pitchUV); void* operator new(unsigned size); // TESTME: OFFSET U/V may be switched to what could be expected from AVI standard! public: int GetPitch() const { return pitch; } int GetPitch(int plane) const { switch (plane) {case PLANAR_U: case PLANAR_V: return pitchUV;} return pitch; } int GetRowSize() const { return row_size; } int GetRowSize(int plane) const { switch (plane) { case PLANAR_U: case PLANAR_V: if (pitchUV) return row_size>>1; else return 0; case PLANAR_U_ALIGNED: case PLANAR_V_ALIGNED: if (pitchUV) { int r = ((row_size+FRAME_ALIGN-1)&(~(FRAME_ALIGN-1)) )>>1; // Aligned rowsize if (r<=pitchUV) return r; return row_size>>1; } else return 0; case PLANAR_Y_ALIGNED: int r = (row_size+FRAME_ALIGN-1)&(~(FRAME_ALIGN-1)); // Aligned rowsize if (r<=pitch) return r; return row_size; } return row_size; } int GetHeight() const { return height; } int GetHeight(int plane) const { switch (plane) {case PLANAR_U: case PLANAR_V: if (pitchUV) return height>>1; return 0;} return height; } // generally you shouldn't use these three VideoFrameBuffer* GetFrameBuffer() const { return vfb; } int GetOffset() const { return offset; } int GetOffset(int plane) const { switch (plane) {case PLANAR_U: return offsetU;case PLANAR_V: return offsetV;default: return offset;}; } // in plugins use env->SubFrame() VideoFrame* Subframe(int rel_offset, int new_pitch, int new_row_size, int new_height) const; VideoFrame* Subframe(int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int pitchUV) const; const BYTE* GetReadPtr() const { return vfb->GetReadPtr() + offset; } const BYTE* GetReadPtr(int plane) const { return vfb->GetReadPtr() + GetOffset(plane); } bool IsWritable() const { return (refcount == 1 && vfb->refcount == 1); } BYTE* GetWritePtr() const { if (vfb->GetRefcount()>1) { _ASSERT(FALSE); //throw AvisynthError("Internal Error - refcount was more than one!"); } return IsWritable() ? (vfb->GetWritePtr() + offset) : 0; } BYTE* GetWritePtr(int plane) const { if (plane==PLANAR_Y) { if (vfb->GetRefcount()>1) { _ASSERT(FALSE); // throw AvisynthError("Internal Error - refcount was more than one!"); } return IsWritable() ? vfb->GetWritePtr() + GetOffset(plane) : 0; } return vfb->data + GetOffset(plane); } ~VideoFrame() { InterlockedDecrement(&vfb->refcount); } }; enum { CACHE_NOTHING=0, CACHE_RANGE=1, CACHE_ALL=2, CACHE_AUDIO=3, CACHE_AUDIO_NONE=4, CACHE_AUDIO_AUTO=5 }; // Base class for all filters. class IClip { friend class PClip; friend class AVSValue; int refcnt; void AddRef() { InterlockedIncrement((long *)&refcnt); } void Release() { InterlockedDecrement((long *)&refcnt); if (!refcnt) delete this; } public: IClip() : refcnt(0) {} virtual int __stdcall GetVersion() { return AVISYNTH_INTERFACE_VERSION; } virtual PVideoFrame __stdcall GetFrame(int n, IScriptEnvironment* env) = 0; virtual bool __stdcall GetParity(int n) = 0; // return field parity if field_based, else parity of first field in frame virtual void __stdcall GetAudio(void* buf, __int64 start, __int64 count, IScriptEnvironment* env) = 0; // start and count are in samples virtual void __stdcall SetCacheHints(int cachehints,int frame_range) = 0 ; // We do not pass cache requests upwards, only to the next filter. virtual const VideoInfo& __stdcall GetVideoInfo() = 0; virtual __stdcall ~IClip() {} }; // smart pointer to IClip class PClip { IClip* p; IClip* GetPointerWithAddRef() const { if (p) p->AddRef(); return p; } friend class AVSValue; friend class VideoFrame; void Init(IClip* x) { if (x) x->AddRef(); p=x; } void Set(IClip* x) { if (x) x->AddRef(); if (p) p->Release(); p=x; } public: PClip() { p = 0; } PClip(const PClip& x) { Init(x.p); } PClip(IClip* x) { Init(x); } void operator=(IClip* x) { Set(x); } void operator=(const PClip& x) { Set(x.p); } IClip* operator->() const { return p; } // useful in conditional expressions operator void*() const { return p; } bool operator!() const { return !p; } ~PClip() { if (p) p->Release(); } }; // smart pointer to VideoFrame class PVideoFrame { VideoFrame* p; void Init(VideoFrame* x) { if (x) x->AddRef(); p=x; } void Set(VideoFrame* x) { if (x) x->AddRef(); if (p) p->Release(); p=x; } public: PVideoFrame() { p = 0; } PVideoFrame(const PVideoFrame& x) { Init(x.p); } PVideoFrame(VideoFrame* x) { Init(x); } void operator=(VideoFrame* x) { Set(x); } void operator=(const PVideoFrame& x) { Set(x.p); } VideoFrame* operator->() const { return p; } // for conditional expressions operator void*() const { return p; } bool operator!() const { return !p; } ~PVideoFrame() { if (p) p->Release();} }; class AVSValue { public: AVSValue() { type = 'v'; } AVSValue(IClip* c) { type = 'c'; clip = c; if (c) c->AddRef(); } AVSValue(const PClip& c) { type = 'c'; clip = c.GetPointerWithAddRef(); } AVSValue(bool b) { type = 'b'; boolean = b; } AVSValue(int i) { type = 'i'; integer = i; } // AVSValue(__int64 l) { type = 'l'; longlong = l; } AVSValue(float f) { type = 'f'; floating_pt = f; } AVSValue(double f) { type = 'f'; floating_pt = float(f); } AVSValue(const char* s) { type = 's'; string = s; } AVSValue(const AVSValue* a, int size) { type = 'a'; array = a; array_size = size; } AVSValue(const AVSValue& v) { Assign(&v, true); } ~AVSValue() { if (IsClip() && clip) clip->Release(); } AVSValue& operator=(const AVSValue& v) { Assign(&v, false); return *this; } // Note that we transparently allow 'int' to be treated as 'float'. // There are no int<->bool conversions, though. bool Defined() const { return type != 'v'; } bool IsClip() const { return type == 'c'; } bool IsBool() const { return type == 'b'; } bool IsInt() const { return type == 'i'; } // bool IsLong() const { return (type == 'l'|| type == 'i'); } bool IsFloat() const { return type == 'f' || type == 'i'; } bool IsString() const { return type == 's'; } bool IsArray() const { return type == 'a'; } PClip AsClip() const { _ASSERTE(IsClip()); return IsClip()?clip:0; } bool AsBool() const { _ASSERTE(IsBool()); return boolean; } int AsInt() const { _ASSERTE(IsInt()); return integer; } // int AsLong() const { _ASSERTE(IsLong()); return longlong; } const char* AsString() const { _ASSERTE(IsString()); return IsString()?string:0; } double AsFloat() const { _ASSERTE(IsFloat()); return IsInt()?integer:floating_pt; } bool AsBool(bool def) const { _ASSERTE(IsBool()||!Defined()); return IsBool() ? boolean : def; } int AsInt(int def) const { _ASSERTE(IsInt()||!Defined()); return IsInt() ? integer : def; } double AsFloat(double def) const { _ASSERTE(IsFloat()||!Defined()); return IsInt() ? integer : type=='f' ? floating_pt : def; } const char* AsString(const char* def) const { _ASSERTE(IsString()||!Defined()); return IsString() ? string : def; } int ArraySize() const { _ASSERTE(IsArray()); return IsArray()?array_size:1; } const AVSValue& operator[](int index) const { _ASSERTE(IsArray() && index>=0 && index=0 && indexIsClip() && src->clip) src->clip->AddRef(); if (!init && IsClip() && clip) clip->Release(); // make sure this copies the whole struct! ((__int32*)this)[0] = ((__int32*)src)[0]; ((__int32*)this)[1] = ((__int32*)src)[1]; } }; // instantiable null filter class GenericVideoFilter : public IClip { protected: PClip child; VideoInfo vi; public: GenericVideoFilter(PClip _child) : child(_child) { vi = child->GetVideoInfo(); } PVideoFrame __stdcall GetFrame(int n, IScriptEnvironment* env) { return child->GetFrame(n, env); } void __stdcall GetAudio(void* buf, __int64 start, __int64 count, IScriptEnvironment* env) { child->GetAudio(buf, start, count, env); } const VideoInfo& __stdcall GetVideoInfo() { return vi; } bool __stdcall GetParity(int n) { return child->GetParity(n); } void __stdcall SetCacheHints(int cachehints,int frame_range) { } ; // We do not pass cache requests upwards, only to the next filter. }; /* Helper classes useful to plugin authors */ class AlignPlanar : public GenericVideoFilter { public: AlignPlanar(PClip _clip); static PClip Create(PClip clip); PVideoFrame __stdcall GetFrame(int n, IScriptEnvironment* env); }; class FillBorder : public GenericVideoFilter { public: FillBorder(PClip _clip); static PClip Create(PClip clip); PVideoFrame __stdcall GetFrame(int n, IScriptEnvironment* env); }; class ConvertAudio : public GenericVideoFilter /** * Helper class to convert audio to any format **/ { public: ConvertAudio(PClip _clip, int prefered_format); void __stdcall GetAudio(void* buf, __int64 start, __int64 count, IScriptEnvironment* env); void __stdcall SetCacheHints(int cachehints,int frame_range); // We do pass cache requests upwards, to the cache! static PClip Create(PClip clip, int sample_type, int prefered_type); static AVSValue __cdecl Create_float(AVSValue args, void*, IScriptEnvironment*); static AVSValue __cdecl Create_32bit(AVSValue args, void*, IScriptEnvironment*); static AVSValue __cdecl Create_24bit(AVSValue args, void*, IScriptEnvironment*); static AVSValue __cdecl Create_16bit(AVSValue args, void*, IScriptEnvironment*); static AVSValue __cdecl Create_8bit (AVSValue args, void*, IScriptEnvironment*); static AVSValue __cdecl Create_Any (AVSValue args, void*, IScriptEnvironment*); virtual ~ConvertAudio(); private: void convertToFloat(char* inbuf, float* outbuf, char sample_type, int count); void convertToFloat_3DN(char* inbuf, float* outbuf, char sample_type, int count); void convertToFloat_SSE(char* inbuf, float* outbuf, char sample_type, int count); void convertToFloat_SSE2(char* inbuf, float* outbuf, char sample_type, int count); void convertFromFloat(float* inbuf, void* outbuf, char sample_type, int count); void convertFromFloat_3DN(float* inbuf, void* outbuf, char sample_type, int count); void convertFromFloat_SSE(float* inbuf, void* outbuf, char sample_type, int count); void convertFromFloat_SSE2(float* inbuf, void* outbuf, char sample_type, int count); __inline int Saturate_int8(float n); __inline short Saturate_int16(float n); __inline int Saturate_int24(float n); __inline int Saturate_int32(float n); char src_format; char dst_format; int src_bps; char *tempbuffer; SFLOAT *floatbuffer; int tempbuffer_size; }; // For GetCPUFlags. These are backwards-compatible with those in VirtualDub. enum { /* slowest CPU to support extension */ CPUF_FORCE = 0x01, // N/A CPUF_FPU = 0x02, // 386/486DX CPUF_MMX = 0x04, // P55C, K6, PII CPUF_INTEGER_SSE = 0x08, // PIII, Athlon CPUF_SSE = 0x10, // PIII, Athlon XP/MP CPUF_SSE2 = 0x20, // PIV, Hammer CPUF_3DNOW = 0x40, // K6-2 CPUF_3DNOW_EXT = 0x80, // Athlon CPUF_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2, which // only Hammer will have anyway) CPUF_SSE3 = 0x100, // PIV+, Hammer }; #define MAX_INT 0x7fffffff #define MIN_INT -0x7fffffff // ::FIXME:: research why this is not 0x80000000 class IScriptEnvironment { public: virtual __stdcall ~IScriptEnvironment() {} virtual /*static*/ long __stdcall GetCPUFlags() = 0; virtual char* __stdcall SaveString(const char* s, int length = -1) = 0; virtual char* __stdcall Sprintf(const char* fmt, ...) = 0; // note: val is really a va_list; I hope everyone typedefs va_list to a pointer virtual char* __stdcall VSprintf(const char* fmt, void* val) = 0; __declspec(noreturn) virtual void __stdcall ThrowError(const char* fmt, ...) = 0; class NotFound /*exception*/ {}; // thrown by Invoke and GetVar typedef AVSValue (__cdecl *ApplyFunc)(AVSValue args, void* user_data, IScriptEnvironment* env); virtual void __stdcall AddFunction(const char* name, const char* params, ApplyFunc apply, void* user_data) = 0; virtual bool __stdcall FunctionExists(const char* name) = 0; virtual AVSValue __stdcall Invoke(const char* name, const AVSValue args, const char** arg_names=0) = 0; virtual AVSValue __stdcall GetVar(const char* name) = 0; virtual bool __stdcall SetVar(const char* name, const AVSValue& val) = 0; virtual bool __stdcall SetGlobalVar(const char* name, const AVSValue& val) = 0; virtual void __stdcall PushContext(int level=0) = 0; virtual void __stdcall PopContext() = 0; // align should be 4 or 8 virtual PVideoFrame __stdcall NewVideoFrame(const VideoInfo& vi, int align=FRAME_ALIGN) = 0; virtual bool __stdcall MakeWritable(PVideoFrame* pvf) = 0; virtual /*static*/ void __stdcall BitBlt(BYTE* dstp, int dst_pitch, const BYTE* srcp, int src_pitch, int row_size, int height) = 0; typedef void (__cdecl *ShutdownFunc)(void* user_data, IScriptEnvironment* env); virtual void __stdcall AtExit(ShutdownFunc function, void* user_data) = 0; virtual void __stdcall CheckVersion(int version = AVISYNTH_INTERFACE_VERSION) = 0; virtual PVideoFrame __stdcall Subframe(PVideoFrame src, int rel_offset, int new_pitch, int new_row_size, int new_height) = 0; virtual int __stdcall SetMemoryMax(int mem) = 0; virtual int __stdcall SetWorkingDir(const char * newdir) = 0; virtual void* __stdcall ManageCache(int key, void* data) = 0; enum PlanarChromaAlignmentMode { PlanarChromaAlignmentOff, PlanarChromaAlignmentOn, PlanarChromaAlignmentTest }; virtual bool __stdcall PlanarChromaAlignment(PlanarChromaAlignmentMode key) = 0; virtual PVideoFrame __stdcall SubframePlanar(PVideoFrame src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV) = 0; }; // avisynth.dll exports this; it's a way to use it as a library, without // writing an AVS script or without going through AVIFile. IScriptEnvironment* __stdcall CreateScriptEnvironment(int version = AVISYNTH_INTERFACE_VERSION); #pragma pack(pop) #endif //__AVISYNTH_H__