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Diffstat (limited to 'ffmpeg/compat/avisynth/avisynth_c.h')
| -rw-r--r-- | ffmpeg/compat/avisynth/avisynth_c.h | 879 |
1 files changed, 0 insertions, 879 deletions
diff --git a/ffmpeg/compat/avisynth/avisynth_c.h b/ffmpeg/compat/avisynth/avisynth_c.h deleted file mode 100644 index 84b6e13..0000000 --- a/ffmpeg/compat/avisynth/avisynth_c.h +++ /dev/null @@ -1,879 +0,0 @@ -// Avisynth C Interface Version 0.20 -// Copyright 2003 Kevin Atkinson - -// This program is free software; you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation; either version 2 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program; if not, write to the Free Software -// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit -// http://www.gnu.org/copyleft/gpl.html . -// -// As a special exception, I give you permission to link to the -// Avisynth C interface with independent modules that communicate with -// the Avisynth C interface solely through the interfaces defined in -// avisynth_c.h, regardless of the license terms of these independent -// modules, and to copy and distribute the resulting combined work -// under terms of your choice, provided that every copy of the -// combined work is accompanied by a complete copy of the source code -// of the Avisynth C interface and Avisynth itself (with the version -// used to produce the combined work), being distributed under the -// terms of the GNU General Public License plus this exception. An -// independent module is a module which is not derived from or based -// on Avisynth C Interface, such as 3rd-party filters, import and -// export plugins, or graphical user interfaces. - -// NOTE: this is a partial update of the Avisynth C interface to recognize -// new color spaces added in Avisynth 2.60. By no means is this document -// completely Avisynth 2.60 compliant. - -#ifndef __AVISYNTH_C__ -#define __AVISYNTH_C__ - -#ifdef __cplusplus -# define EXTERN_C extern "C" -#else -# define EXTERN_C -#endif - -#define AVSC_USE_STDCALL 1 - -#ifndef AVSC_USE_STDCALL -# define AVSC_CC __cdecl -#else -# define AVSC_CC __stdcall -#endif - -#define AVSC_INLINE static __inline - -#ifdef AVISYNTH_C_EXPORTS -# define AVSC_EXPORT EXTERN_C -# define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name -#else -# define AVSC_EXPORT EXTERN_C __declspec(dllexport) -# ifndef AVSC_NO_DECLSPEC -# define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name -# else -# define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func) -# endif -#endif - -typedef unsigned char BYTE; -#ifdef __GNUC__ -typedef long long int INT64; -#else -typedef __int64 INT64; -#endif - - -///////////////////////////////////////////////////////////////////// -// -// Constants -// - -#ifndef __AVISYNTH_H__ -enum { AVISYNTH_INTERFACE_VERSION = 4 }; -#endif - -enum {AVS_SAMPLE_INT8 = 1<<0, - AVS_SAMPLE_INT16 = 1<<1, - AVS_SAMPLE_INT24 = 1<<2, - AVS_SAMPLE_INT32 = 1<<3, - AVS_SAMPLE_FLOAT = 1<<4}; - -enum {AVS_PLANAR_Y=1<<0, - AVS_PLANAR_U=1<<1, - AVS_PLANAR_V=1<<2, - AVS_PLANAR_ALIGNED=1<<3, - AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED, - AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED, - AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED, - AVS_PLANAR_A=1<<4, - AVS_PLANAR_R=1<<5, - AVS_PLANAR_G=1<<6, - AVS_PLANAR_B=1<<7, - AVS_PLANAR_A_ALIGNED=AVS_PLANAR_A|AVS_PLANAR_ALIGNED, - AVS_PLANAR_R_ALIGNED=AVS_PLANAR_R|AVS_PLANAR_ALIGNED, - AVS_PLANAR_G_ALIGNED=AVS_PLANAR_G|AVS_PLANAR_ALIGNED, - AVS_PLANAR_B_ALIGNED=AVS_PLANAR_B|AVS_PLANAR_ALIGNED}; - - // Colorspace properties. -enum {AVS_CS_BGR = 1<<28, - AVS_CS_YUV = 1<<29, - AVS_CS_INTERLEAVED = 1<<30, - AVS_CS_PLANAR = 1<<31, - - AVS_CS_SHIFT_SUB_WIDTH = 0, - AVS_CS_SHIFT_SUB_HEIGHT = 1 << 3, - AVS_CS_SHIFT_SAMPLE_BITS = 1 << 4, - - AVS_CS_SUB_WIDTH_MASK = 7 << AVS_CS_SHIFT_SUB_WIDTH, - AVS_CS_SUB_WIDTH_1 = 3 << AVS_CS_SHIFT_SUB_WIDTH, // YV24 - AVS_CS_SUB_WIDTH_2 = 0 << AVS_CS_SHIFT_SUB_WIDTH, // YV12, I420, YV16 - AVS_CS_SUB_WIDTH_4 = 1 << AVS_CS_SHIFT_SUB_WIDTH, // YUV9, YV411 - - AVS_CS_VPLANEFIRST = 1 << 3, // YV12, YV16, YV24, YV411, YUV9 - AVS_CS_UPLANEFIRST = 1 << 4, // I420 - - AVS_CS_SUB_HEIGHT_MASK = 7 << AVS_CS_SHIFT_SUB_HEIGHT, - AVS_CS_SUB_HEIGHT_1 = 3 << AVS_CS_SHIFT_SUB_HEIGHT, // YV16, YV24, YV411 - AVS_CS_SUB_HEIGHT_2 = 0 << AVS_CS_SHIFT_SUB_HEIGHT, // YV12, I420 - AVS_CS_SUB_HEIGHT_4 = 1 << AVS_CS_SHIFT_SUB_HEIGHT, // YUV9 - - AVS_CS_SAMPLE_BITS_MASK = 7 << AVS_CS_SHIFT_SAMPLE_BITS, - AVS_CS_SAMPLE_BITS_8 = 0 << AVS_CS_SHIFT_SAMPLE_BITS, - AVS_CS_SAMPLE_BITS_16 = 1 << AVS_CS_SHIFT_SAMPLE_BITS, - AVS_CS_SAMPLE_BITS_32 = 2 << AVS_CS_SHIFT_SAMPLE_BITS, - - 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, - AVS_CS_PLANAR_FILTER = ~( AVS_CS_VPLANEFIRST | AVS_CS_UPLANEFIRST )}; - - // Specific colorformats -enum { - AVS_CS_UNKNOWN = 0, - AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED, - AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED, - AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED, - // AVS_CS_YV12 = 1<<3 Reserved - // AVS_CS_I420 = 1<<4 Reserved - AVS_CS_RAW32 = 1<<5 | AVS_CS_INTERLEAVED, - - 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 - 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 - 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 - 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 - AVS_CS_IYUV = AVS_CS_I420, - 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 - 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 - AVS_CS_Y8 = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 // Y 4:0:0 planar -}; - -enum { - AVS_IT_BFF = 1<<0, - AVS_IT_TFF = 1<<1, - AVS_IT_FIELDBASED = 1<<2}; - -enum { - AVS_FILTER_TYPE=1, - AVS_FILTER_INPUT_COLORSPACE=2, - AVS_FILTER_OUTPUT_TYPE=9, - AVS_FILTER_NAME=4, - AVS_FILTER_AUTHOR=5, - AVS_FILTER_VERSION=6, - AVS_FILTER_ARGS=7, - AVS_FILTER_ARGS_INFO=8, - AVS_FILTER_ARGS_DESCRIPTION=10, - AVS_FILTER_DESCRIPTION=11}; - -enum { //SUBTYPES - AVS_FILTER_TYPE_AUDIO=1, - AVS_FILTER_TYPE_VIDEO=2, - AVS_FILTER_OUTPUT_TYPE_SAME=3, - AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4}; - -enum { - AVS_CACHE_NOTHING=0, - AVS_CACHE_RANGE=1, - AVS_CACHE_ALL=2, - AVS_CACHE_AUDIO=3, - AVS_CACHE_AUDIO_NONE=4, - AVS_CACHE_AUDIO_AUTO=5 - }; - -#define AVS_FRAME_ALIGN 16 - -typedef struct AVS_Clip AVS_Clip; -typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment; - -///////////////////////////////////////////////////////////////////// -// -// AVS_VideoInfo -// - -// AVS_VideoInfo is layed out identicly to VideoInfo -typedef struct AVS_VideoInfo { - int width, height; // width=0 means no video - unsigned fps_numerator, fps_denominator; - int num_frames; - - int pixel_type; - - int audio_samples_per_second; // 0 means no audio - int sample_type; - INT64 num_audio_samples; - int nchannels; - - // Imagetype properties - - int image_type; -} AVS_VideoInfo; - -// useful functions of the above -AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p) - { return (p->width!=0); } - -AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p) - { return (p->audio_samples_per_second!=0); } - -AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p) - { return !!(p->pixel_type&AVS_CS_BGR); } - -AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p) - { return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties - -AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p) - { return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; } - -AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p) - { return !!(p->pixel_type&AVS_CS_YUV ); } - -AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p) - { return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; } - -AVSC_INLINE int avs_is_yv24(const AVS_VideoInfo * p) - { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV24 & AVS_CS_PLANAR_FILTER); } - -AVSC_INLINE int avs_is_yv16(const AVS_VideoInfo * p) - { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV16 & AVS_CS_PLANAR_FILTER); } - -AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p) - { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV12 & AVS_CS_PLANAR_FILTER); } - -AVSC_INLINE int avs_is_yv411(const AVS_VideoInfo * p) - { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV411 & AVS_CS_PLANAR_FILTER); } - -AVSC_INLINE int avs_is_y8(const AVS_VideoInfo * p) - { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_Y8 & AVS_CS_PLANAR_FILTER); } - -AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property) - { return ((p->pixel_type & property)==property ); } - -AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p) - { return !!(p->pixel_type & AVS_CS_PLANAR); } - -AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space) - { 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); } - -AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p) - { return !!(p->image_type & AVS_IT_FIELDBASED); } - -AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p) - { return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); } - -AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p) - { return !!(p->image_type & AVS_IT_BFF); } - -AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p) - { return !!(p->image_type & AVS_IT_TFF); } - -AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p) -{ - switch (p->pixel_type) { - case AVS_CS_BGR24: return 24; - case AVS_CS_BGR32: return 32; - case AVS_CS_YUY2: return 16; - case AVS_CS_YV12: - case AVS_CS_I420: return 12; - default: return 0; - } -} -AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels) - { return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes - -AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p) - { return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images - -AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi) - { 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); } - -AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p) - { return p->audio_samples_per_second; } - - -AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p) -{ - switch (p->sample_type) { - case AVS_SAMPLE_INT8: return sizeof(signed char); - case AVS_SAMPLE_INT16: return sizeof(signed short); - case AVS_SAMPLE_INT24: return 3; - case AVS_SAMPLE_INT32: return sizeof(signed int); - case AVS_SAMPLE_FLOAT: return sizeof(float); - default: return 0; - } -} -AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p) - { return p->nchannels*avs_bytes_per_channel_sample(p);} - -AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames) - { return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); } - -AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples) - { return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); } - -AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes) - { return bytes / avs_bytes_per_audio_sample(p); } - -AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples) - { return samples * avs_bytes_per_audio_sample(p); } - -AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p) - { return p->nchannels; } - -AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p) - { return p->sample_type;} - -// useful mutator -AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property) - { p->image_type|=property; } - -AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property) - { p->image_type&=~property; } - -AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased) - { if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; } - -AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator) -{ - unsigned x=numerator, y=denominator; - while (y) { // find gcd - unsigned t = x%y; x = y; y = t; - } - p->fps_numerator = numerator/x; - p->fps_denominator = denominator/x; -} - -AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y) -{ - return (x->pixel_type == y->pixel_type) - || (avs_is_yv12(x) && avs_is_yv12(y)); -} - -///////////////////////////////////////////////////////////////////// -// -// AVS_VideoFrame -// - -// VideoFrameBuffer holds information about a memory block which is used -// for video data. For efficiency, instances of this class are not deleted -// when the refcount reaches zero; instead they're stored in a linked list -// to be reused. The instances are deleted when the corresponding AVS -// file is closed. - -// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer -// DO NOT USE THIS STRUCTURE DIRECTLY -typedef struct AVS_VideoFrameBuffer { - BYTE * data; - int data_size; - // sequence_number is incremented every time the buffer is changed, so - // that stale views can tell they're no longer valid. - volatile long sequence_number; - - volatile long refcount; -} AVS_VideoFrameBuffer; - -// VideoFrame holds a "window" into a VideoFrameBuffer. - -// 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 |