mpv/libmpcodecs/vf.h

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/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_VF_H
#define MPLAYER_VF_H
#include "mp_image.h"
#include "mpcommon.h"
#include "stdbool.h"
#include "mpc_info.h"
#include "vfcap.h"
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struct MPOpts;
struct vf_instance;
struct vf_priv_s;
typedef struct vf_info {
const char *info;
const char *name;
const char *author;
const char *comment;
int (*vf_open)(struct vf_instance *vf, char *args);
// Ptr to a struct dscribing the options
const void *opts;
} vf_info_t;
#define NUM_NUMBERED_MPI 50
struct vf_image_context {
mp_image_t *static_images[2];
mp_image_t *temp_images[1];
mp_image_t *export_images[1];
mp_image_t *numbered_images[NUM_NUMBERED_MPI];
int static_idx;
};
struct vf_format_context {
int have_configured;
int orig_width, orig_height, orig_fmt;
};
typedef struct vf_instance {
const vf_info_t *info;
// funcs:
int (*config)(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt);
int (*control)(struct vf_instance *vf, int request, void *data);
int (*query_format)(struct vf_instance *vf, unsigned int fmt);
void (*get_image)(struct vf_instance *vf, mp_image_t *mpi);
int (*put_image)(struct vf_instance *vf, mp_image_t *mpi, double pts);
void (*start_slice)(struct vf_instance *vf, mp_image_t *mpi);
void (*draw_slice)(struct vf_instance *vf, unsigned char **src,
int *stride, int w, int h, int x, int y);
void (*uninit)(struct vf_instance *vf);
int (*continue_buffered_image)(struct vf_instance *vf);
// caps:
unsigned int default_caps; // used by default query_format()
unsigned int default_reqs; // used by default config()
// data:
int w, h;
struct vf_image_context imgctx;
struct vf_format_context fmt;
struct vf_instance *next;
mp_image_t *dmpi;
struct vf_priv_s *priv;
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struct MPOpts *opts;
} vf_instance_t;
typedef struct vf_seteq {
const char *item;
int value;
} vf_equalizer_t;
struct vf_ctrl_screenshot {
// When the screenshot is complete, pass it to this callback.
void (*image_callback)(void *, mp_image_t *);
void *image_callback_ctx;
};
#define VFCTRL_QUERY_MAX_PP_LEVEL 4 // query max postprocessing level (if any)
#define VFCTRL_SET_PP_LEVEL 5 // set postprocessing level
#define VFCTRL_SET_EQUALIZER 6 // set color options (brightness,contrast etc)
#define VFCTRL_GET_EQUALIZER 8 // get color options (brightness,contrast etc)
#define VFCTRL_DRAW_OSD 7
#define VFCTRL_CHANGE_RECTANGLE 9 // vf_rectangle control
#define VFCTRL_DUPLICATE_FRAME 11 // For encoding - encode zero-change frame
#define VFCTRL_SKIP_NEXT_FRAME 12 // For encoding - drop the next frame that passes thru
#define VFCTRL_FLUSH_FRAMES 13 // For encoding - flush delayed frames
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#define VFCTRL_SCREENSHOT 14 // Take screenshot, arg is vf_ctrl_screenshot
#define VFCTRL_INIT_EOSD 15 // Select EOSD renderer
#define VFCTRL_DRAW_EOSD 16 // Render EOSD */
#define VFCTRL_SET_DEINTERLACE 18 // Set deinterlacing status
#define VFCTRL_GET_DEINTERLACE 19 // Get deinterlacing status
/* Hack to make the OSD state object available to vf_expand and vf_ass which
* access OSD/subtitle state outside of normal OSD draw time. */
#define VFCTRL_SET_OSD_OBJ 20
#define VFCTRL_SET_YUV_COLORSPACE 22 // arg is struct mp_csp_details*
#define VFCTRL_GET_YUV_COLORSPACE 23 // arg is struct mp_csp_details*
// functions:
void vf_mpi_clear(mp_image_t *mpi, int x0, int y0, int w, int h);
mp_image_t *vf_get_image(vf_instance_t *vf, unsigned int outfmt,
int mp_imgtype, int mp_imgflag, int w, int h);
vf_instance_t *vf_open_plugin(struct MPOpts *opts,
const vf_info_t * const *filter_list, vf_instance_t *next,
const char *name, char **args);
struct vf_instance *vf_open_plugin_noerr(struct MPOpts *opts,
const vf_info_t *const *filter_list, vf_instance_t *next,
const char *name, char **args, int *retcode);
vf_instance_t *vf_open_filter(struct MPOpts *opts, vf_instance_t *next,
const char *name, char **args);
vf_instance_t *vf_add_before_vo(vf_instance_t **vf, char *name, char **args);
vf_instance_t *vf_open_encoder(struct MPOpts *opts, vf_instance_t *next,
const char *name, char *args);
unsigned int vf_match_csp(vf_instance_t **vfp, const unsigned int *list,
unsigned int preferred);
void vf_clone_mpi_attributes(mp_image_t *dst, mp_image_t *src);
void vf_queue_frame(vf_instance_t *vf, int (*)(vf_instance_t *));
int vf_output_queued_frame(vf_instance_t *vf);
// default wrappers:
int vf_next_config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt);
int vf_next_control(struct vf_instance *vf, int request, void *data);
int vf_next_query_format(struct vf_instance *vf, unsigned int fmt);
int vf_next_put_image(struct vf_instance *vf, mp_image_t *mpi, double pts);
void vf_next_draw_slice(struct vf_instance *vf, unsigned char **src,
int *stride, int w, int h, int x, int y);
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struct m_obj_settings;
vf_instance_t *append_filters(vf_instance_t *last,
struct m_obj_settings *vf_settings);
void vf_uninit_filter(vf_instance_t *vf);
void vf_uninit_filter_chain(vf_instance_t *vf);
int vf_config_wrapper(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt);
static inline int norm_qscale(int qscale, int type)
{
switch (type) {
case 0: // MPEG-1
return qscale;
case 1: // MPEG-2
return qscale >> 1;
case 2: // H264
return qscale >> 2;
case 3: // VP56
return (63 - qscale + 2) >> 2;
}
return qscale;
}
struct vf_detc_pts_buf {
double inpts_prev, outpts_prev;
double lastdelta;
};
void vf_detc_init_pts_buf(struct vf_detc_pts_buf *p);
/* Adjust pts when detelecining.
* skip_frame: do not render this frame
* reset_pattern: set to 1 if the telecine pattern has reset due to scene cut
*/
double vf_detc_adjust_pts(struct vf_detc_pts_buf *p, double pts,
bool reset_pattern, bool skip_frame);
double vf_softpulldown_adjust_pts(struct vf_detc_pts_buf *p, double pts,
bool reset_pattern, bool skip_frame,
int last_frame_duration);
#endif /* MPLAYER_VF_H */