mirror of https://github.com/odrling/Aegisub
755 lines
26 KiB
C
755 lines
26 KiB
C
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// Avisynth v2.5. Copyright 2002 Ben Rudiak-Gould et al.
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// http://www.avisynth.org
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
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// http://www.gnu.org/copyleft/gpl.html .
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//
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// Linking Avisynth statically or dynamically with other modules is making a
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// combined work based on Avisynth. Thus, the terms and conditions of the GNU
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// General Public License cover the whole combination.
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//
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// As a special exception, the copyright holders of Avisynth give you
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// permission to link Avisynth with independent modules that communicate with
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// Avisynth solely through the interfaces defined in avisynth.h, regardless of the license
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// terms of these independent modules, and to copy and distribute the
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// resulting combined work under terms of your choice, provided that
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// every copy of the combined work is accompanied by a complete copy of
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// the source code of Avisynth (the version of Avisynth used to produce the
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// combined work), being distributed under the terms of the GNU General
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// Public License plus this exception. An independent module is a module
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// which is not derived from or based on Avisynth, such as 3rd-party filters,
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// import and export plugins, or graphical user interfaces.
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#ifndef __AVISYNTH_H__
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#define __AVISYNTH_H__
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enum { AVISYNTH_INTERFACE_VERSION = 3 };
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/* Define all types necessary for interfacing with avisynth.dll
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Moved from internal.h */
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// Win32 API macros, notably the types BYTE, DWORD, ULONG, etc.
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#include <windef.h>
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// COM interface macros
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#include <objbase.h>
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// Raster types used by VirtualDub & Avisynth
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#define in64 (__int64)(unsigned short)
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typedef unsigned long Pixel; // this will break on 64-bit machines!
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typedef unsigned long Pixel32;
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typedef unsigned char Pixel8;
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typedef long PixCoord;
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typedef long PixDim;
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typedef long PixOffset;
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/* Compiler-specific crap */
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// Tell MSVC to stop precompiling here
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#ifdef _MSC_VER
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#pragma hdrstop
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#endif
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// Set up debugging macros for MS compilers; for others, step down to the
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// standard <assert.h> interface
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#ifdef _MSC_VER
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#include <crtdbg.h>
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#else
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#define _RPT0(a,b) ((void)0)
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#define _RPT1(a,b,c) ((void)0)
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#define _RPT2(a,b,c,d) ((void)0)
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#define _RPT3(a,b,c,d,e) ((void)0)
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#define _RPT4(a,b,c,d,e,f) ((void)0)
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#define _ASSERTE(x) assert(x)
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#define _ASSERT(x) assert(x)
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#include <assert.h>
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#endif
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// I had problems with Premiere wanting 1-byte alignment for its structures,
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// so I now set the Avisynth struct alignment explicitly here.
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#pragma pack(push,8)
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#define FRAME_ALIGN 16
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// Default frame alignment is 16 bytes, to help P4, when using SSE2
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// The VideoInfo struct holds global information about a clip (i.e.
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// information that does not depend on the frame number). The GetVideoInfo
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// method in IClip returns this struct.
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// Audio Sample information
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typedef float SFLOAT;
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enum {SAMPLE_INT8 = 1<<0,
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SAMPLE_INT16 = 1<<1,
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SAMPLE_INT24 = 1<<2, // Int24 is a very stupid thing to code, but it's supported by some hardware.
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SAMPLE_INT32 = 1<<3,
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SAMPLE_FLOAT = 1<<4};
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enum {
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PLANAR_Y=1<<0,
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PLANAR_U=1<<1,
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PLANAR_V=1<<2,
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PLANAR_ALIGNED=1<<3,
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PLANAR_Y_ALIGNED=PLANAR_Y|PLANAR_ALIGNED,
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PLANAR_U_ALIGNED=PLANAR_U|PLANAR_ALIGNED,
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PLANAR_V_ALIGNED=PLANAR_V|PLANAR_ALIGNED,
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};
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struct VideoInfo {
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int width, height; // width=0 means no video
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unsigned fps_numerator, fps_denominator;
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int num_frames;
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// This is more extensible than previous versions. More properties can be added seeminglesly.
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// Colorspace properties.
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enum {
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CS_BGR = 1<<28,
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CS_YUV = 1<<29,
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CS_INTERLEAVED = 1<<30,
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CS_PLANAR = 1<<31
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};
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// Specific colorformats
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enum { CS_UNKNOWN = 0,
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CS_BGR24 = 1<<0 | CS_BGR | CS_INTERLEAVED,
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CS_BGR32 = 1<<1 | CS_BGR | CS_INTERLEAVED,
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CS_YUY2 = 1<<2 | CS_YUV | CS_INTERLEAVED,
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CS_YV12 = 1<<3 | CS_YUV | CS_PLANAR, // y-v-u, planar
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CS_I420 = 1<<4 | CS_YUV | CS_PLANAR, // y-u-v, planar
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CS_IYUV = 1<<4 | CS_YUV | CS_PLANAR // same as above
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};
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int pixel_type; // changed to int as of 2.5
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int audio_samples_per_second; // 0 means no audio
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int sample_type; // as of 2.5
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__int64 num_audio_samples; // changed as of 2.5
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int nchannels; // as of 2.5
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// Imagetype properties
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int image_type;
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enum {
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IT_BFF = 1<<0,
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IT_TFF = 1<<1,
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IT_FIELDBASED = 1<<2
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};
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// useful functions of the above
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bool HasVideo() const { return (width!=0); }
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bool HasAudio() const { return (audio_samples_per_second!=0); }
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bool IsRGB() const { return !!(pixel_type&CS_BGR); }
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bool IsRGB24() const { return (pixel_type&CS_BGR24)==CS_BGR24; } // Clear out additional properties
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bool IsRGB32() const { return (pixel_type & CS_BGR32) == CS_BGR32 ; }
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bool IsYUV() const { return !!(pixel_type&CS_YUV ); }
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bool IsYUY2() const { return (pixel_type & CS_YUY2) == CS_YUY2; }
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bool IsYV12() const { return ((pixel_type & CS_YV12) == CS_YV12)||((pixel_type & CS_I420) == CS_I420); }
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bool IsColorSpace(int c_space) const { return ((pixel_type & c_space) == c_space); }
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bool Is(int property) const { return ((pixel_type & property)==property ); }
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bool IsPlanar() const { return !!(pixel_type & CS_PLANAR); }
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bool IsFieldBased() const { return !!(image_type & IT_FIELDBASED); }
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bool IsParityKnown() const { return ((image_type & IT_FIELDBASED)&&(image_type & (IT_BFF|IT_TFF))); }
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bool IsBFF() const { return !!(image_type & IT_BFF); }
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bool IsTFF() const { return !!(image_type & IT_TFF); }
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bool IsVPlaneFirst() const {return ((pixel_type & CS_YV12) == CS_YV12); } // Don't use this
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int BytesFromPixels(int pixels) const { return pixels * (BitsPerPixel()>>3); } // Will not work on planar images, but will return only luma planes
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int RowSize() const { return BytesFromPixels(width); } // Also only returns first plane on planar images
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int BMPSize() const { if (IsPlanar()) {int p = height * ((RowSize()+3) & ~3); p+=p>>1; return p; } return height * ((RowSize()+3) & ~3); }
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__int64 AudioSamplesFromFrames(__int64 frames) const { return (fps_numerator && HasVideo()) ? ((__int64)(frames) * audio_samples_per_second * fps_denominator / fps_numerator) : 0; }
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int FramesFromAudioSamples(__int64 samples) const { return (fps_denominator && HasAudio()) ? (int)((samples * (__int64)fps_numerator)/((__int64)fps_denominator * (__int64)audio_samples_per_second)) : 0; }
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__int64 AudioSamplesFromBytes(__int64 bytes) const { return HasAudio() ? bytes / BytesPerAudioSample() : 0; }
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__int64 BytesFromAudioSamples(__int64 samples) const { return samples * BytesPerAudioSample(); }
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int AudioChannels() const { return nchannels; }
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int SampleType() const{ return sample_type;}
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bool IsSampleType(int testtype) const{ return !!(sample_type&testtype);}
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int SamplesPerSecond() const { return audio_samples_per_second; }
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int BytesPerAudioSample() const { return nchannels*BytesPerChannelSample();}
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void SetFieldBased(bool isfieldbased) { if (isfieldbased) image_type|=IT_FIELDBASED; else image_type&=~IT_FIELDBASED; }
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void Set(int property) { image_type|=property; }
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void Clear(int property) { image_type&=~property; }
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int BitsPerPixel() const {
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switch (pixel_type) {
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case CS_BGR24:
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return 24;
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case CS_BGR32:
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return 32;
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case CS_YUY2:
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return 16;
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case CS_YV12:
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case CS_I420:
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return 12;
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default:
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return 0;
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}
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}
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int BytesPerChannelSample() const {
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switch (sample_type) {
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case SAMPLE_INT8:
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return sizeof(signed char);
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case SAMPLE_INT16:
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return sizeof(signed short);
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case SAMPLE_INT24:
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return 3;
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case SAMPLE_INT32:
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return sizeof(signed int);
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case SAMPLE_FLOAT:
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return sizeof(SFLOAT);
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default:
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_ASSERTE("Sample type not recognized!");
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return 0;
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}
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}
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// useful mutator
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void SetFPS(unsigned numerator, unsigned denominator) {
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if ((numerator == 0) || (denominator == 0)) {
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fps_numerator = 0;
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fps_denominator = 1;
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}
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else {
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unsigned x=numerator, y=denominator;
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while (y) { // find gcd
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unsigned t = x%y; x = y; y = t;
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}
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fps_numerator = numerator/x;
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fps_denominator = denominator/x;
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}
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}
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// Range protected multiply-divide of FPS
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void MulDivFPS(unsigned multiplier, unsigned divisor) {
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unsigned __int64 numerator = UInt32x32To64(fps_numerator, multiplier);
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unsigned __int64 denominator = UInt32x32To64(fps_denominator, divisor);
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unsigned __int64 x=numerator, y=denominator;
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while (y) { // find gcd
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unsigned __int64 t = x%y; x = y; y = t;
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}
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numerator /= x; // normalize
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denominator /= x;
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unsigned __int64 temp = numerator | denominator; // Just looking top bit
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unsigned u = 0;
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#ifdef __GNUC__
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while (temp & 0xffffffff80000000LL) { // or perhaps > 16777216*2
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#else
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while (temp & 0xffffffff80000000) { // or perhaps > 16777216*2
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#endif
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temp = Int64ShrlMod32(temp, 1);
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u++;
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}
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if (u) { // Scale to fit
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const unsigned round = 1 << (u-1);
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SetFPS( (unsigned)Int64ShrlMod32(numerator + round, u),
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(unsigned)Int64ShrlMod32(denominator + round, u) );
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}
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else {
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fps_numerator = (unsigned)numerator;
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fps_denominator = (unsigned)denominator;
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}
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}
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// Test for same colorspace
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bool IsSameColorspace(const VideoInfo& vi) const {
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if (vi.pixel_type == pixel_type) return TRUE;
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if (IsYV12() && vi.IsYV12()) return TRUE;
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return FALSE;
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}
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};
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// VideoFrameBuffer holds information about a memory block which is used
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// for video data. For efficiency, instances of this class are not deleted
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// when the refcount reaches zero; instead they're stored in a linked list
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// to be reused. The instances are deleted when the corresponding AVS
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// file is closed.
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class VideoFrameBuffer {
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BYTE* const data;
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const int data_size;
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// sequence_number is incremented every time the buffer is changed, so
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// that stale views can tell they're no longer valid.
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long sequence_number;
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friend class VideoFrame;
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friend class Cache;
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friend class ScriptEnvironment;
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long refcount;
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public:
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VideoFrameBuffer(int size);
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VideoFrameBuffer();
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~VideoFrameBuffer();
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const BYTE* GetReadPtr() const { return data; }
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BYTE* GetWritePtr() { ++sequence_number; return data; }
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int GetDataSize() { return data_size; }
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int GetSequenceNumber() { return sequence_number; }
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int GetRefcount() { return refcount; }
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};
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class IClip;
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class PClip;
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class PVideoFrame;
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class IScriptEnvironment;
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class AVSValue;
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// VideoFrame holds a "window" into a VideoFrameBuffer. Operator new
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// is overloaded to recycle class instances.
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class VideoFrame {
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int refcount;
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VideoFrameBuffer* const vfb;
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const int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
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friend class PVideoFrame;
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void AddRef() { InterlockedIncrement((long *)&refcount); }
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void Release() { if (refcount==1) InterlockedDecrement(&vfb->refcount); InterlockedDecrement((long *)&refcount); }
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friend class ScriptEnvironment;
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friend class Cache;
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VideoFrame(VideoFrameBuffer* _vfb, int _offset, int _pitch, int _row_size, int _height);
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VideoFrame(VideoFrameBuffer* _vfb, int _offset, int _pitch, int _row_size, int _height, int _offsetU, int _offsetV, int _pitchUV);
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void* operator new(size_t size);
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|
|
// 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
|
||
|
|
|
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class IScriptEnvironment {
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public:
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virtual __stdcall ~IScriptEnvironment() {}
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virtual /*static*/ long __stdcall GetCPUFlags() = 0;
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virtual char* __stdcall SaveString(const char* s, int length = -1) = 0;
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virtual char* __stdcall Sprintf(const char* fmt, ...) = 0;
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// note: val is really a va_list; I hope everyone typedefs va_list to a pointer
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virtual char* __stdcall VSprintf(const char* fmt, void* val) = 0;
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__declspec(noreturn) virtual void __stdcall ThrowError(const char* fmt, ...) = 0;
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class NotFound /*exception*/ {}; // thrown by Invoke and GetVar
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typedef AVSValue (__cdecl *ApplyFunc)(AVSValue args, void* user_data, IScriptEnvironment* env);
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virtual void __stdcall AddFunction(const char* name, const char* params, ApplyFunc apply, void* user_data) = 0;
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virtual bool __stdcall FunctionExists(const char* name) = 0;
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virtual AVSValue __stdcall Invoke(const char* name, const AVSValue args, const char** arg_names=0) = 0;
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virtual AVSValue __stdcall GetVar(const char* name) = 0;
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virtual bool __stdcall SetVar(const char* name, const AVSValue& val) = 0;
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virtual bool __stdcall SetGlobalVar(const char* name, const AVSValue& val) = 0;
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virtual void __stdcall PushContext(int level=0) = 0;
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virtual void __stdcall PopContext() = 0;
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// align should be 4 or 8
|
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virtual PVideoFrame __stdcall NewVideoFrame(const VideoInfo& vi, int align=FRAME_ALIGN) = 0;
|
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virtual bool __stdcall MakeWritable(PVideoFrame* pvf) = 0;
|
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virtual /*static*/ void __stdcall BitBlt(BYTE* dstp, int dst_pitch, const BYTE* srcp, int src_pitch, int row_size, int height) = 0;
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typedef void (__cdecl *ShutdownFunc)(void* user_data, IScriptEnvironment* env);
|
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virtual void __stdcall AtExit(ShutdownFunc function, void* user_data) = 0;
|
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virtual void __stdcall CheckVersion(int version = AVISYNTH_INTERFACE_VERSION) = 0;
|
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virtual PVideoFrame __stdcall Subframe(PVideoFrame src, int rel_offset, int new_pitch, int new_row_size, int new_height) = 0;
|
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virtual int __stdcall SetMemoryMax(int mem) = 0;
|
||
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|
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virtual int __stdcall SetWorkingDir(const char * newdir) = 0;
|
||
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|
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virtual void* __stdcall ManageCache(int key, void* data) = 0;
|
||
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|
||
|
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enum PlanarChromaAlignmentMode {
|
||
|
|
PlanarChromaAlignmentOff,
|
||
|
|
PlanarChromaAlignmentOn,
|
||
|
|
PlanarChromaAlignmentTest };
|
||
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|
||
|
|
virtual bool __stdcall PlanarChromaAlignment(PlanarChromaAlignmentMode key) = 0;
|
||
|
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|
||
|
|
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;
|
||
|
|
};
|
||
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|
||
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|
||
|
|
// 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);
|
||
|
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|
||
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|
||
|
|
#pragma pack(pop)
|
||
|
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|
||
|
|
#endif //__AVISYNTH_H__
|