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/* -*- mode:C -*- */
/*
* Copyright (C) 2001 Kawamata/Hitoshi <hitoshi.kawamata@nifty.ne.jp>
*
* 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.
*/
#ifndef __YUVFILTERS_H__
#define __YUVFILTERS_H__
#include <stddef.h>
#ifdef MJPEGTOOLS
# include <string.h>
# include <errno.h>
# include <mjpeg_logging.h>
#endif
#include <yuv4mpeg.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef MJPEGTOOLS
# define perror(MSG) mjpeg_error("%s: %s", MSG, strerror(errno))
# define WERROR(MSG) mjpeg_error(MSG)
# define WERRORL(MSG) mjpeg_error(MSG)
# define WWARN(MSG) mjpeg_warn(MSG)
#else
# define WERROR(MSG) write(2, MSG "\n", sizeof MSG)
# define WERRORL(MSG) do { write(2, MSG, strlen(MSG)); write(2, "\n", 1); } while (0)
# define WWARN(MSG) WERROR("warning: " MSG)
#endif
typedef struct {
y4m_frame_info_t fi;
uint8_t data[0];
} YfFrame_t;
#define CWDIV(C) (((C)==Y4M_CHROMA_444)?1:((C)==Y4M_CHROMA_411)?4:2)
#define CHDIV(C) \
(((C)==Y4M_CHROMA_444||(C)==Y4M_CHROMA_422||(C)==Y4M_CHROMA_411)?1:2)
#define DATABYTES(C,W,H) \
(((W)*(H))+(((C)==Y4M_CHROMA_MONO)?0:(((W)/CWDIV(C))*((H)/CHDIV(C))*2)))
#define FRAMEBYTES(C,W,H) (sizeof ((YfFrame_t *)0)->fi + DATABYTES(C,W,H))
struct YfTaskClass_tag;
typedef struct YfTaskCore_tag {
/* private: filter may not touch */
const struct YfTaskClass_tag *method;
struct YfTaskCore_tag *handle_outgoing;
/* protected: filter must set */
y4m_stream_info_t si;
int width, height, fpscode;
} YfTaskCore_t;
typedef struct YfTaskClass_tag {
const char *(*usage)(void);
YfTaskCore_t *(*init)(int argc, char **argv, const YfTaskCore_t *h0);
void (*fini)(YfTaskCore_t *handle);
int (*frame)(YfTaskCore_t *handle, const YfTaskCore_t *h0, const YfFrame_t *frame0);
} YfTaskClass_t;
#define DECLARE_YFTASKCLASS(name) \
extern const YfTaskClass_t name
#define DEFINE_YFTASKCLASS(sclass, prefix, name) \
sclass const char *prefix##_usage(void); \
sclass YfTaskCore_t *prefix##_init(int argc, char **argv, const YfTaskCore_t *h0); \
sclass void prefix##_fini(YfTaskCore_t *handle); \
sclass int prefix##_frame(YfTaskCore_t *handle, const YfTaskCore_t *h0, const YfFrame_t * frame0); \
const YfTaskClass_t name = { prefix##_usage, prefix##_init, prefix##_fini, prefix##_frame, }
#define DEFINE_STD_YFTASKCLASS(name) DEFINE_YFTASKCLASS(static,do,name)
extern int verbose;
extern YfTaskCore_t *YfAllocateTask(const YfTaskClass_t *filter, size_t size, const YfTaskCore_t *h0);
extern void YfFreeTask(YfTaskCore_t *handle);
extern YfFrame_t *YfInitFrame(YfFrame_t *frame, const YfTaskCore_t *h0);
extern void YfFiniFrame(YfFrame_t *frame);
extern int YfPutFrame(const YfTaskCore_t *handle, const YfFrame_t *frame);
extern YfTaskCore_t *YfAddNewTask(const YfTaskClass_t *filter,
int argc, char **argv, const YfTaskCore_t *h0);
#ifdef __cplusplus
}
#endif
#endif
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