mia/Aegisub
1
0
Fork 1
Code Issues Pull requests Projects Releases Wiki Activity
Aegisub/OverLua/avisynth.h
Niels Martin Hansen 0211960d8e Another project for the Aegisub repository... 
Originally committed to SVN as r1475.
2007-08-11 19:59:48 +00:00

754 lines
26 KiB
C++
Raw Blame History

// 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 <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)
#define _ASSERT(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 !!(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 nchannels; }
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;
#ifdef __GNUC__
while (temp & 0xffffffff80000000LL) { // or perhaps > 16777216*2
#else
while (temp & 0xffffffff80000000) { // or perhaps > 16777216*2
#endif
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(size_t 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
};
// 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<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) {}
};
/* 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*);
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, // Some P4 & Athlon 64.
};
#define MAX_INT 0x7fffffff
#define MIN_INT -0x7fffffff
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__
Reference in a new issue View git blame Copy permalink