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cedf27651d
The versions of the headers are the same as those provided with x264 for consistency's sake.
880 lines
32 KiB
C
880 lines
32 KiB
C
// Avisynth C Interface Version 0.20
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// Copyright 2003 Kevin Atkinson
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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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// As a special exception, I give you permission to link to the
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// Avisynth C interface with independent modules that communicate with
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// the Avisynth C interface solely through the interfaces defined in
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// avisynth_c.h, regardless of the license terms of these independent
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// modules, and to copy and distribute the resulting combined work
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// under terms of your choice, provided that every copy of the
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// combined work is accompanied by a complete copy of the source code
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// of the Avisynth C interface and Avisynth itself (with the version
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// used to produce the combined work), being distributed under the
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// terms of the GNU General Public License plus this exception. An
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// independent module is a module which is not derived from or based
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// on Avisynth C Interface, such as 3rd-party filters, import and
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// export plugins, or graphical user interfaces.
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// NOTE: this is a partial update of the Avisynth C interface to recognize
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// new color spaces added in Avisynth 2.60. By no means is this document
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// completely Avisynth 2.60 compliant.
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#ifndef __AVISYNTH_C__
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#define __AVISYNTH_C__
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#ifdef __cplusplus
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# define EXTERN_C extern "C"
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#else
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# define EXTERN_C
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#endif
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#define AVSC_USE_STDCALL 1
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#ifndef AVSC_USE_STDCALL
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# define AVSC_CC __cdecl
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#else
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# define AVSC_CC __stdcall
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#endif
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#define AVSC_INLINE static __inline
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#ifdef AVISYNTH_C_EXPORTS
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# define AVSC_EXPORT EXTERN_C
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# define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
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#else
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# define AVSC_EXPORT EXTERN_C __declspec(dllexport)
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# ifndef AVSC_NO_DECLSPEC
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# define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
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# else
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# define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
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# endif
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#endif
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typedef unsigned char BYTE;
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#ifdef __GNUC__
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typedef long long int INT64;
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#else
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typedef __int64 INT64;
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#endif
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/////////////////////////////////////////////////////////////////////
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//
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// Constants
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//
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#ifndef __AVISYNTH_H__
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enum { AVISYNTH_INTERFACE_VERSION = 4 };
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#endif
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enum {AVS_SAMPLE_INT8 = 1<<0,
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AVS_SAMPLE_INT16 = 1<<1,
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AVS_SAMPLE_INT24 = 1<<2,
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AVS_SAMPLE_INT32 = 1<<3,
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AVS_SAMPLE_FLOAT = 1<<4};
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enum {AVS_PLANAR_Y=1<<0,
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AVS_PLANAR_U=1<<1,
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AVS_PLANAR_V=1<<2,
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AVS_PLANAR_ALIGNED=1<<3,
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AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
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AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
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AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED,
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AVS_PLANAR_A=1<<4,
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AVS_PLANAR_R=1<<5,
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AVS_PLANAR_G=1<<6,
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AVS_PLANAR_B=1<<7,
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AVS_PLANAR_A_ALIGNED=AVS_PLANAR_A|AVS_PLANAR_ALIGNED,
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AVS_PLANAR_R_ALIGNED=AVS_PLANAR_R|AVS_PLANAR_ALIGNED,
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AVS_PLANAR_G_ALIGNED=AVS_PLANAR_G|AVS_PLANAR_ALIGNED,
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AVS_PLANAR_B_ALIGNED=AVS_PLANAR_B|AVS_PLANAR_ALIGNED};
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// Colorspace properties.
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enum {AVS_CS_BGR = 1<<28,
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AVS_CS_YUV = 1<<29,
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AVS_CS_INTERLEAVED = 1<<30,
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AVS_CS_PLANAR = 1<<31,
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AVS_CS_SHIFT_SUB_WIDTH = 0,
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AVS_CS_SHIFT_SUB_HEIGHT = 1 << 3,
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AVS_CS_SHIFT_SAMPLE_BITS = 1 << 4,
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AVS_CS_SUB_WIDTH_MASK = 7 << AVS_CS_SHIFT_SUB_WIDTH,
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AVS_CS_SUB_WIDTH_1 = 3 << AVS_CS_SHIFT_SUB_WIDTH, // YV24
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AVS_CS_SUB_WIDTH_2 = 0 << AVS_CS_SHIFT_SUB_WIDTH, // YV12, I420, YV16
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AVS_CS_SUB_WIDTH_4 = 1 << AVS_CS_SHIFT_SUB_WIDTH, // YUV9, YV411
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AVS_CS_VPLANEFIRST = 1 << 3, // YV12, YV16, YV24, YV411, YUV9
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AVS_CS_UPLANEFIRST = 1 << 4, // I420
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AVS_CS_SUB_HEIGHT_MASK = 7 << AVS_CS_SHIFT_SUB_HEIGHT,
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AVS_CS_SUB_HEIGHT_1 = 3 << AVS_CS_SHIFT_SUB_HEIGHT, // YV16, YV24, YV411
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AVS_CS_SUB_HEIGHT_2 = 0 << AVS_CS_SHIFT_SUB_HEIGHT, // YV12, I420
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AVS_CS_SUB_HEIGHT_4 = 1 << AVS_CS_SHIFT_SUB_HEIGHT, // YUV9
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AVS_CS_SAMPLE_BITS_MASK = 7 << AVS_CS_SHIFT_SAMPLE_BITS,
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AVS_CS_SAMPLE_BITS_8 = 0 << AVS_CS_SHIFT_SAMPLE_BITS,
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AVS_CS_SAMPLE_BITS_16 = 1 << AVS_CS_SHIFT_SAMPLE_BITS,
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AVS_CS_SAMPLE_BITS_32 = 2 << AVS_CS_SHIFT_SAMPLE_BITS,
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AVS_CS_PLANAR_MASK = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_BGR | AVS_CS_SAMPLE_BITS_MASK | AVS_CS_SUB_HEIGHT_MASK | AVS_CS_SUB_WIDTH_MASK,
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AVS_CS_PLANAR_FILTER = ~( AVS_CS_VPLANEFIRST | AVS_CS_UPLANEFIRST )};
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// Specific colorformats
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enum {
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AVS_CS_UNKNOWN = 0,
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AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
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AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
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AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
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// AVS_CS_YV12 = 1<<3 Reserved
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// AVS_CS_I420 = 1<<4 Reserved
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AVS_CS_RAW32 = 1<<5 | AVS_CS_INTERLEAVED,
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AVS_CS_YV24 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_1, // YVU 4:4:4 planar
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AVS_CS_YV16 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_2, // YVU 4:2:2 planar
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AVS_CS_YV12 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2, // YVU 4:2:0 planar
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AVS_CS_I420 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_UPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2, // YUV 4:2:0 planar
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AVS_CS_IYUV = AVS_CS_I420,
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AVS_CS_YV411 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_4, // YVU 4:1:1 planar
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AVS_CS_YUV9 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_4 | AVS_CS_SUB_WIDTH_4, // YVU 4:1:0 planar
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AVS_CS_Y8 = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 // Y 4:0:0 planar
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};
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enum {
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AVS_IT_BFF = 1<<0,
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AVS_IT_TFF = 1<<1,
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AVS_IT_FIELDBASED = 1<<2};
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enum {
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AVS_FILTER_TYPE=1,
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AVS_FILTER_INPUT_COLORSPACE=2,
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AVS_FILTER_OUTPUT_TYPE=9,
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AVS_FILTER_NAME=4,
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AVS_FILTER_AUTHOR=5,
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AVS_FILTER_VERSION=6,
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AVS_FILTER_ARGS=7,
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AVS_FILTER_ARGS_INFO=8,
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AVS_FILTER_ARGS_DESCRIPTION=10,
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AVS_FILTER_DESCRIPTION=11};
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enum { //SUBTYPES
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AVS_FILTER_TYPE_AUDIO=1,
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AVS_FILTER_TYPE_VIDEO=2,
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AVS_FILTER_OUTPUT_TYPE_SAME=3,
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AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
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enum {
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AVS_CACHE_NOTHING=0,
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AVS_CACHE_RANGE=1,
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AVS_CACHE_ALL=2,
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AVS_CACHE_AUDIO=3,
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AVS_CACHE_AUDIO_NONE=4,
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AVS_CACHE_AUDIO_AUTO=5
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};
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#define AVS_FRAME_ALIGN 16
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typedef struct AVS_Clip AVS_Clip;
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typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
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/////////////////////////////////////////////////////////////////////
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//
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// AVS_VideoInfo
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//
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// AVS_VideoInfo is layed out identicly to VideoInfo
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typedef struct AVS_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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int pixel_type;
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int audio_samples_per_second; // 0 means no audio
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int sample_type;
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INT64 num_audio_samples;
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int nchannels;
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// Imagetype properties
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int image_type;
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} AVS_VideoInfo;
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// useful functions of the above
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AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
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{ return (p->width!=0); }
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AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
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{ return (p->audio_samples_per_second!=0); }
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AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
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{ return !!(p->pixel_type&AVS_CS_BGR); }
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AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
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{ return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
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AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
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AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
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{ return !!(p->pixel_type&AVS_CS_YUV ); }
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AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
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AVSC_INLINE int avs_is_yv24(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV24 & AVS_CS_PLANAR_FILTER); }
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AVSC_INLINE int avs_is_yv16(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV16 & AVS_CS_PLANAR_FILTER); }
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AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV12 & AVS_CS_PLANAR_FILTER); }
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AVSC_INLINE int avs_is_yv411(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV411 & AVS_CS_PLANAR_FILTER); }
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AVSC_INLINE int avs_is_y8(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_Y8 & AVS_CS_PLANAR_FILTER); }
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AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
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{ return ((p->pixel_type & property)==property ); }
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AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
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{ return !!(p->pixel_type & AVS_CS_PLANAR); }
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AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space)
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{ return avs_is_planar(p) ? ((p->pixel_type & AVS_CS_PLANAR_MASK) == (c_space & AVS_CS_PLANAR_FILTER)) : ((p->pixel_type & c_space) == c_space); }
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AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
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{ return !!(p->image_type & AVS_IT_FIELDBASED); }
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AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
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{ return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
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AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
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{ return !!(p->image_type & AVS_IT_BFF); }
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AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
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{ return !!(p->image_type & AVS_IT_TFF); }
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AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p)
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{
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switch (p->pixel_type) {
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case AVS_CS_BGR24: return 24;
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case AVS_CS_BGR32: return 32;
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case AVS_CS_YUY2: return 16;
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case AVS_CS_YV12:
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case AVS_CS_I420: return 12;
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default: return 0;
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}
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}
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AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels)
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{ return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes
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AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p)
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{ return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images
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AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi)
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{ if (avs_is_planar(vi)) {int p = vi->height * ((avs_row_size(vi)+3) & ~3); p+=p>>1; return p; } return vi->height * ((avs_row_size(vi)+3) & ~3); }
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AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
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{ return p->audio_samples_per_second; }
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AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
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{
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switch (p->sample_type) {
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case AVS_SAMPLE_INT8: return sizeof(signed char);
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case AVS_SAMPLE_INT16: return sizeof(signed short);
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case AVS_SAMPLE_INT24: return 3;
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case AVS_SAMPLE_INT32: return sizeof(signed int);
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case AVS_SAMPLE_FLOAT: return sizeof(float);
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default: return 0;
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}
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}
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AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
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{ return p->nchannels*avs_bytes_per_channel_sample(p);}
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AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
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{ return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
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AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
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{ return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
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AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
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{ return bytes / avs_bytes_per_audio_sample(p); }
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AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
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{ return samples * avs_bytes_per_audio_sample(p); }
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AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
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{ return p->nchannels; }
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AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
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{ return p->sample_type;}
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// useful mutator
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AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
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{ p->image_type|=property; }
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AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
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{ p->image_type&=~property; }
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AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
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{ if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
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AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
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{
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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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p->fps_numerator = numerator/x;
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p->fps_denominator = denominator/x;
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}
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AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
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{
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return (x->pixel_type == y->pixel_type)
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|| (avs_is_yv12(x) && avs_is_yv12(y));
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}
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/////////////////////////////////////////////////////////////////////
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//
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// AVS_VideoFrame
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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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// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
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// DO NOT USE THIS STRUCTURE DIRECTLY
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typedef struct AVS_VideoFrameBuffer {
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BYTE * data;
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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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volatile long sequence_number;
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volatile long refcount;
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} AVS_VideoFrameBuffer;
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// VideoFrame holds a "window" into a VideoFrameBuffer.
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// AVS_VideoFrame is layed out identicly to IVideoFrame
|
|
// DO NOT USE THIS STRUCTURE DIRECTLY
|
|
typedef struct AVS_VideoFrame {
|
|
volatile long refcount;
|
|
AVS_VideoFrameBuffer * vfb;
|
|
int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
|
|
int row_sizeUV, heightUV;
|
|
} AVS_VideoFrame;
|
|
|
|
// Access functions for AVS_VideoFrame
|
|
AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
|
|
return p->pitch;}
|
|
|
|
AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) {
|
|
switch (plane) {
|
|
case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;}
|
|
return p->pitch;}
|
|
|
|
AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
|
|
return p->row_size; }
|
|
|
|
AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) {
|
|
int r;
|
|
switch (plane) {
|
|
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
|
if (p->pitchUV) return p->row_sizeUV;
|
|
else return 0;
|
|
case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
|
|
if (p->pitchUV) {
|
|
r = (p->row_sizeUV+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
|
if (r < p->pitchUV)
|
|
return r;
|
|
return p->row_sizeUV;
|
|
} else return 0;
|
|
case AVS_PLANAR_Y_ALIGNED:
|
|
r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
|
if (r <= p->pitch)
|
|
return r;
|
|
return p->row_size;
|
|
}
|
|
return p->row_size;
|
|
}
|
|
|
|
AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
|
|
return p->height;}
|
|
|
|
AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) {
|
|
switch (plane) {
|
|
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
|
if (p->pitchUV) return p->heightUV;
|
|
return 0;
|
|
}
|
|
return p->height;}
|
|
|
|
AVSC_INLINE const BYTE* avs_get_read_ptr(const AVS_VideoFrame * p) {
|
|
return p->vfb->data + p->offset;}
|
|
|
|
AVSC_INLINE const BYTE* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane)
|
|
{
|
|
switch (plane) {
|
|
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
|
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
|
default: return p->vfb->data + p->offset;}
|
|
}
|
|
|
|
AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) {
|
|
return (p->refcount == 1 && p->vfb->refcount == 1);}
|
|
|
|
AVSC_INLINE BYTE* avs_get_write_ptr(const AVS_VideoFrame * p)
|
|
{
|
|
if (avs_is_writable(p)) {
|
|
++p->vfb->sequence_number;
|
|
return p->vfb->data + p->offset;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
AVSC_INLINE BYTE* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane)
|
|
{
|
|
if (plane==AVS_PLANAR_Y && avs_is_writable(p)) {
|
|
++p->vfb->sequence_number;
|
|
return p->vfb->data + p->offset;
|
|
} else if (plane==AVS_PLANAR_Y) {
|
|
return 0;
|
|
} else {
|
|
switch (plane) {
|
|
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
|
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
|
default: return p->vfb->data + p->offset;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
|
|
// makes a shallow copy of a video frame
|
|
AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
|
|
|
|
#ifndef AVSC_NO_DECLSPEC
|
|
AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
|
|
{avs_release_video_frame(f);}
|
|
AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
|
|
{return avs_copy_video_frame(f);}
|
|
#endif
|
|
|
|
/////////////////////////////////////////////////////////////////////
|
|
//
|
|
// AVS_Value
|
|
//
|
|
|
|
// Treat AVS_Value as a fat pointer. That is use avs_copy_value
|
|
// and avs_release_value appropiaty as you would if AVS_Value was
|
|
// a pointer.
|
|
|
|
// To maintain source code compatibility with future versions of the
|
|
// avisynth_c API don't use the AVS_Value directly. Use the helper
|
|
// functions below.
|
|
|
|
// AVS_Value is layed out identicly to AVSValue
|
|
typedef struct AVS_Value AVS_Value;
|
|
struct AVS_Value {
|
|
short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
|
|
// for some function e'rror
|
|
short array_size;
|
|
union {
|
|
void * clip; // do not use directly, use avs_take_clip
|
|
char boolean;
|
|
int integer;
|
|
float floating_pt;
|
|
const char * string;
|
|
const AVS_Value * array;
|
|
} d;
|
|
};
|
|
|
|
// AVS_Value should be initilized with avs_void.
|
|
// Should also set to avs_void after the value is released
|
|
// with avs_copy_value. Consider it the equalvent of setting
|
|
// a pointer to NULL
|
|
static const AVS_Value avs_void = {'v'};
|
|
|
|
AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
|
|
AVSC_API(void, avs_release_value)(AVS_Value);
|
|
|
|
AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
|
|
AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
|
|
AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
|
|
AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
|
|
AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
|
|
AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
|
|
AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
|
|
AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
|
|
|
|
AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
|
|
AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
|
|
|
|
AVSC_INLINE int avs_as_bool(AVS_Value v)
|
|
{ return v.d.boolean; }
|
|
AVSC_INLINE int avs_as_int(AVS_Value v)
|
|
{ return v.d.integer; }
|
|
AVSC_INLINE const char * avs_as_string(AVS_Value v)
|
|
{ return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
|
|
AVSC_INLINE double avs_as_float(AVS_Value v)
|
|
{ return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
|
|
AVSC_INLINE const char * avs_as_error(AVS_Value v)
|
|
{ return avs_is_error(v) ? v.d.string : 0; }
|
|
AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
|
|
{ return v.d.array; }
|
|
AVSC_INLINE int avs_array_size(AVS_Value v)
|
|
{ return avs_is_array(v) ? v.array_size : 1; }
|
|
AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
|
|
{ return avs_is_array(v) ? v.d.array[index] : v; }
|
|
|
|
// only use these functions on an AVS_Value that does not already have
|
|
// an active value. Remember, treat AVS_Value as a fat pointer.
|
|
AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
|
|
{ AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
|
|
AVSC_INLINE AVS_Value avs_new_value_int(int v0)
|
|
{ AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
|
|
AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
|
|
{ AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
|
|
AVSC_INLINE AVS_Value avs_new_value_float(float v0)
|
|
{ AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
|
|
AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
|
|
{ AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
|
|
#ifndef AVSC_NO_DECLSPEC
|
|
AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
|
|
{ AVS_Value v; avs_set_to_clip(&v, v0); return v; }
|
|
#endif
|
|
AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
|
|
{ AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
|
|
|
|
/////////////////////////////////////////////////////////////////////
|
|
//
|
|
// AVS_Clip
|
|
//
|
|
|
|
AVSC_API(void, avs_release_clip)(AVS_Clip *);
|
|
AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
|
|
|
|
AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
|
|
|
|
AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
|
|
|
|
AVSC_API(int, avs_get_version)(AVS_Clip *);
|
|
|
|
AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
|
|
// The returned video frame must be released with avs_release_video_frame
|
|
|
|
AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
|
|
// return field parity if field_based, else parity of first field in frame
|
|
|
|
AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
|
|
INT64 start, INT64 count);
|
|
// start and count are in samples
|
|
|
|
AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
|
|
int cachehints, int frame_range);
|
|
|
|
// This is the callback type used by avs_add_function
|
|
typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
|
|
(AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
|
|
|
|
typedef struct AVS_FilterInfo AVS_FilterInfo;
|
|
struct AVS_FilterInfo
|
|
{
|
|
// these members should not be modified outside of the AVS_ApplyFunc callback
|
|
AVS_Clip * child;
|
|
AVS_VideoInfo vi;
|
|
AVS_ScriptEnvironment * env;
|
|
AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
|
|
int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
|
|
int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
|
|
INT64 start, INT64 count);
|
|
int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
|
|
int frame_range);
|
|
void (AVSC_CC * free_filter)(AVS_FilterInfo *);
|
|
|
|
// Should be set when ever there is an error to report.
|
|
// It is cleared before any of the above methods are called
|
|
const char * error;
|
|
// this is to store whatever and may be modified at will
|
|
void * user_data;
|
|
};
|
|
|
|
// Create a new filter
|
|
// fi is set to point to the AVS_FilterInfo so that you can
|
|
// modify it once it is initilized.
|
|
// store_child should generally be set to true. If it is not
|
|
// set than ALL methods (the function pointers) must be defined
|
|
// If it is set than you do not need to worry about freeing the child
|
|
// clip.
|
|
AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
|
|
AVS_FilterInfo * * fi,
|
|
AVS_Value child, int store_child);
|
|
|
|
/////////////////////////////////////////////////////////////////////
|
|
//
|
|
// AVS_ScriptEnvironment
|
|
//
|
|
|
|
// For GetCPUFlags. These are backwards-compatible with those in VirtualDub.
|
|
enum {
|
|
/* slowest CPU to support extension */
|
|
AVS_CPU_FORCE = 0x01, // N/A
|
|
AVS_CPU_FPU = 0x02, // 386/486DX
|
|
AVS_CPU_MMX = 0x04, // P55C, K6, PII
|
|
AVS_CPU_INTEGER_SSE = 0x08, // PIII, Athlon
|
|
AVS_CPU_SSE = 0x10, // PIII, Athlon XP/MP
|
|
AVS_CPU_SSE2 = 0x20, // PIV, Hammer
|
|
AVS_CPU_3DNOW = 0x40, // K6-2
|
|
AVS_CPU_3DNOW_EXT = 0x80, // Athlon
|
|
AVS_CPU_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2,
|
|
// which only Hammer will have anyway)
|
|
AVS_CPUF_SSE3 = 0x100, // PIV+, K8 Venice
|
|
AVS_CPUF_SSSE3 = 0x200, // Core 2
|
|
AVS_CPUF_SSE4 = 0x400, // Penryn, Wolfdale, Yorkfield
|
|
AVS_CPUF_SSE4_1 = 0x400,
|
|
AVS_CPUF_SSE4_2 = 0x800, // Nehalem
|
|
};
|
|
|
|
AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
|
|
|
|
AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
|
|
AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
|
|
|
|
AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
|
|
AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
|
|
|
|
AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, void* val);
|
|
// note: val is really a va_list; I hope everyone typedefs va_list to a pointer
|
|
|
|
AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
|
|
const char * name, const char * params,
|
|
AVS_ApplyFunc apply, void * user_data);
|
|
|
|
AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
|
|
|
|
AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
|
|
AVS_Value args, const char** arg_names);
|
|
// The returned value must be be released with avs_release_value
|
|
|
|
AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
|
|
// The returned value must be be released with avs_release_value
|
|
|
|
AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
|
|
|
|
AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
|
|
|
|
//void avs_push_context(AVS_ScriptEnvironment *, int level=0);
|
|
//void avs_pop_context(AVS_ScriptEnvironment *);
|
|
|
|
AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
|
|
const AVS_VideoInfo * vi, int align);
|
|
// align should be at least 16
|
|
|
|
#ifndef AVSC_NO_DECLSPEC
|
|
AVSC_INLINE
|
|
AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
|
|
const AVS_VideoInfo * vi)
|
|
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
|
|
|
AVSC_INLINE
|
|
AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
|
|
const AVS_VideoInfo * vi)
|
|
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
|
#endif
|
|
|
|
|
|
AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
|
|
|
|
AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, BYTE* dstp, int dst_pitch, const BYTE* srcp, int src_pitch, int row_size, int height);
|
|
|
|
typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
|
|
AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
|
|
|
|
AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
|
|
// The returned video frame must be be released
|
|
|
|
AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
|
|
|
|
AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
|
|
|
|
// avisynth.dll exports this; it's a way to use it as a library, without
|
|
// writing an AVS script or without going through AVIFile.
|
|
AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
|
|
|
|
// this symbol is the entry point for the plugin and must
|
|
// be defined
|
|
AVSC_EXPORT
|
|
const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
|
|
|
|
|
|
AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
|
|
|
|
|
|
AVSC_API(AVS_VideoFrame *, avs_subframe_planar)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV);
|
|
// The returned video frame must be be released
|
|
|
|
#ifdef AVSC_NO_DECLSPEC
|
|
// use LoadLibrary and related functions to dynamically load Avisynth instead of declspec(dllimport)
|
|
/*
|
|
The following functions needs to have been declared, probably from windows.h
|
|
|
|
void* malloc(size_t)
|
|
void free(void*);
|
|
|
|
HMODULE LoadLibrary(const char*);
|
|
void* GetProcAddress(HMODULE, const char*);
|
|
FreeLibrary(HMODULE);
|
|
*/
|
|
|
|
|
|
typedef struct AVS_Library AVS_Library;
|
|
|
|
#define AVSC_DECLARE_FUNC(name) name##_func name
|
|
|
|
struct AVS_Library {
|
|
HMODULE handle;
|
|
|
|
AVSC_DECLARE_FUNC(avs_add_function);
|
|
AVSC_DECLARE_FUNC(avs_at_exit);
|
|
AVSC_DECLARE_FUNC(avs_bit_blt);
|
|
AVSC_DECLARE_FUNC(avs_check_version);
|
|
AVSC_DECLARE_FUNC(avs_clip_get_error);
|
|
AVSC_DECLARE_FUNC(avs_copy_clip);
|
|
AVSC_DECLARE_FUNC(avs_copy_value);
|
|
AVSC_DECLARE_FUNC(avs_copy_video_frame);
|
|
AVSC_DECLARE_FUNC(avs_create_script_environment);
|
|
AVSC_DECLARE_FUNC(avs_delete_script_environment);
|
|
AVSC_DECLARE_FUNC(avs_function_exists);
|
|
AVSC_DECLARE_FUNC(avs_get_audio);
|
|
AVSC_DECLARE_FUNC(avs_get_cpu_flags);
|
|
AVSC_DECLARE_FUNC(avs_get_error);
|
|
AVSC_DECLARE_FUNC(avs_get_frame);
|
|
AVSC_DECLARE_FUNC(avs_get_parity);
|
|
AVSC_DECLARE_FUNC(avs_get_var);
|
|
AVSC_DECLARE_FUNC(avs_get_version);
|
|
AVSC_DECLARE_FUNC(avs_get_video_info);
|
|
AVSC_DECLARE_FUNC(avs_invoke);
|
|
AVSC_DECLARE_FUNC(avs_make_writable);
|
|
AVSC_DECLARE_FUNC(avs_new_c_filter);
|
|
AVSC_DECLARE_FUNC(avs_new_video_frame_a);
|
|
AVSC_DECLARE_FUNC(avs_release_clip);
|
|
AVSC_DECLARE_FUNC(avs_release_value);
|
|
AVSC_DECLARE_FUNC(avs_release_video_frame);
|
|
AVSC_DECLARE_FUNC(avs_save_string);
|
|
AVSC_DECLARE_FUNC(avs_set_cache_hints);
|
|
AVSC_DECLARE_FUNC(avs_set_global_var);
|
|
AVSC_DECLARE_FUNC(avs_set_memory_max);
|
|
AVSC_DECLARE_FUNC(avs_set_to_clip);
|
|
AVSC_DECLARE_FUNC(avs_set_var);
|
|
AVSC_DECLARE_FUNC(avs_set_working_dir);
|
|
AVSC_DECLARE_FUNC(avs_sprintf);
|
|
AVSC_DECLARE_FUNC(avs_subframe);
|
|
AVSC_DECLARE_FUNC(avs_subframe_planar);
|
|
AVSC_DECLARE_FUNC(avs_take_clip);
|
|
AVSC_DECLARE_FUNC(avs_vsprintf);
|
|
};
|
|
|
|
#undef AVSC_DECLARE_FUNC
|
|
|
|
|
|
AVSC_INLINE AVS_Library * avs_load_library() {
|
|
AVS_Library *library = (AVS_Library *)malloc(sizeof(AVS_Library));
|
|
if (library == NULL)
|
|
return NULL;
|
|
library->handle = LoadLibrary("avisynth");
|
|
if (library->handle == NULL)
|
|
goto fail;
|
|
|
|
#define __AVSC_STRINGIFY(x) #x
|
|
#define AVSC_STRINGIFY(x) __AVSC_STRINGIFY(x)
|
|
#define AVSC_LOAD_FUNC(name) {\
|
|
library->name = (name##_func) GetProcAddress(library->handle, AVSC_STRINGIFY(name));\
|
|
if (library->name == NULL)\
|
|
goto fail;\
|
|
}
|
|
|
|
AVSC_LOAD_FUNC(avs_add_function);
|
|
AVSC_LOAD_FUNC(avs_at_exit);
|
|
AVSC_LOAD_FUNC(avs_bit_blt);
|
|
AVSC_LOAD_FUNC(avs_check_version);
|
|
AVSC_LOAD_FUNC(avs_clip_get_error);
|
|
AVSC_LOAD_FUNC(avs_copy_clip);
|
|
AVSC_LOAD_FUNC(avs_copy_value);
|
|
AVSC_LOAD_FUNC(avs_copy_video_frame);
|
|
AVSC_LOAD_FUNC(avs_create_script_environment);
|
|
AVSC_LOAD_FUNC(avs_delete_script_environment);
|
|
AVSC_LOAD_FUNC(avs_function_exists);
|
|
AVSC_LOAD_FUNC(avs_get_audio);
|
|
AVSC_LOAD_FUNC(avs_get_cpu_flags);
|
|
AVSC_LOAD_FUNC(avs_get_error);
|
|
AVSC_LOAD_FUNC(avs_get_frame);
|
|
AVSC_LOAD_FUNC(avs_get_parity);
|
|
AVSC_LOAD_FUNC(avs_get_var);
|
|
AVSC_LOAD_FUNC(avs_get_version);
|
|
AVSC_LOAD_FUNC(avs_get_video_info);
|
|
AVSC_LOAD_FUNC(avs_invoke);
|
|
AVSC_LOAD_FUNC(avs_make_writable);
|
|
AVSC_LOAD_FUNC(avs_new_c_filter);
|
|
AVSC_LOAD_FUNC(avs_new_video_frame_a);
|
|
AVSC_LOAD_FUNC(avs_release_clip);
|
|
AVSC_LOAD_FUNC(avs_release_value);
|
|
AVSC_LOAD_FUNC(avs_release_video_frame);
|
|
AVSC_LOAD_FUNC(avs_save_string);
|
|
AVSC_LOAD_FUNC(avs_set_cache_hints);
|
|
AVSC_LOAD_FUNC(avs_set_global_var);
|
|
AVSC_LOAD_FUNC(avs_set_memory_max);
|
|
AVSC_LOAD_FUNC(avs_set_to_clip);
|
|
AVSC_LOAD_FUNC(avs_set_var);
|
|
AVSC_LOAD_FUNC(avs_set_working_dir);
|
|
AVSC_LOAD_FUNC(avs_sprintf);
|
|
AVSC_LOAD_FUNC(avs_subframe);
|
|
AVSC_LOAD_FUNC(avs_subframe_planar);
|
|
AVSC_LOAD_FUNC(avs_take_clip);
|
|
AVSC_LOAD_FUNC(avs_vsprintf);
|
|
|
|
#undef __AVSC_STRINGIFY
|
|
#undef AVSC_STRINGIFY
|
|
#undef AVSC_LOAD_FUNC
|
|
|
|
return library;
|
|
|
|
fail:
|
|
free(library);
|
|
return NULL;
|
|
}
|
|
|
|
AVSC_INLINE void avs_free_library(AVS_Library *library) {
|
|
if (library == NULL)
|
|
return;
|
|
FreeLibrary(library->handle);
|
|
free(library);
|
|
}
|
|
#endif
|
|
|
|
#endif
|