avisynth25.h
上传用户:xjjlds
上传日期:2015-12-05
资源大小:22823k
文件大小:24k
- // Avisynth v2.5 alpha. 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.
- #pragma once
- enum { AVISYNTH_INTERFACE_VERSION = 2 };
- /* Define all types necessary for interfacing with avisynth.dll
- Moved from internal.h */
- // Win32 API macros, notably the types BYTE, DWORD, ULONG, etc.
- #include <windef.h>
- // COM interface macros
- #include <objbase.h>
- // 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 <assert.h> interface
- #ifdef _MSC_VER
- #include <crtdbg.h>
- #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 <assert.h>
- #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,
- };
- 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, planar
- CS_I420 = 1<<4 | CS_YUV | CS_PLANAR, // y-u-v, 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 !!(pixel_type & IT_BFF); }
- bool IsTFF() const { return !!(pixel_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 (__int64(frames) * audio_samples_per_second * fps_denominator / fps_numerator); }
- int FramesFromAudioSamples(__int64 samples) const { return (int)(samples * (__int64)fps_numerator / (__int64)fps_denominator / (__int64)audio_samples_per_second); }
- __int64 AudioSamplesFromBytes(__int64 bytes) const { return bytes / BytesPerAudioSample(); }
- __int64 BytesFromAudioSamples(__int64 samples) const { return samples * BytesPerAudioSample(); }
- int AudioChannels() const { return nchannels; }
- int SampleType() const{ return sample_type;}
- 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) {
- 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;
- }
- };
- enum {
- FILTER_TYPE=1,
- FILTER_INPUT_COLORSPACE=2,
- FILTER_OUTPUT_TYPE=9,
- FILTER_NAME=4,
- FILTER_AUTHOR=5,
- FILTER_VERSION=6,
- FILTER_ARGS=7,
- FILTER_ARGS_INFO=8,
- FILTER_ARGS_DESCRIPTION=10,
- FILTER_DESCRIPTION=11,
- };
- enum { //SUBTYPES
- FILTER_TYPE_AUDIO=1,
- FILTER_TYPE_VIDEO=2,
- FILTER_OUTPUT_TYPE_SAME=3,
- FILTER_OUTPUT_TYPE_DIFFERENT=4,
- };
- // 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;
- 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() { ++refcount; }
- void Release() { if (refcount==1) --vfb->refcount; --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 {
- return IsWritable() ? (vfb->GetWritePtr() + offset) : 0;
- }
- BYTE* GetWritePtr(int plane) const {
- if (plane==PLANAR_Y)
- return IsWritable() ? vfb->GetWritePtr() + GetOffset(plane) : 0;
- return vfb->data + GetOffset(plane);
- }
- ~VideoFrame() { --vfb->refcount; }
- };
- enum {
- CACHE_NOTHING=0,
- CACHE_RANGE=1 };
- // Base class for all filters.
- class IClip {
- friend class PClip;
- friend class AVSValue;
- int refcnt;
- void AddRef() { ++refcnt; }
- void Release() { 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<array_size);
- return (IsArray() && index>=0 && index<array_size) ? array[index] : *this;
- }
- private:
- short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
- short array_size;
- union {
- IClip* clip;
- bool boolean;
- int integer;
- float floating_pt;
- const char* string;
- const AVSValue* array;
- // __int64 longlong;
- };
- void Assign(const AVSValue* src, bool init) {
- if (src->IsClip() && 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.
- };
- class AvisynthError /* exception */ {
- public:
- const char* const msg;
- AvisynthError(const char* _msg) : msg(_msg) {}
- };
- // 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)
- };
- #define MAX_INT 0x7fffffff
- #define MIN_INT 0x80000000
- 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);
- 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_16bit(AVSValue args, void*, IScriptEnvironment*);
- static AVSValue __cdecl Create_8bit(AVSValue args, void*, IScriptEnvironment*);
- virtual ~ConvertAudio()
- {if (tempbuffer_size) {delete[] tempbuffer;tempbuffer_size=0;}}
- private:
- void ConvertAudio::convertToFloat(char* inbuf, float* outbuf, char sample_type, int count);
- void ConvertAudio::convertFromFloat(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;
- };
- 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 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;
- };
- // 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)