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mpv/libvo/video_out.h

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/*
* Copyright (C) Aaron Holtzman - Aug 1999
* Strongly modified, most parts rewritten: A'rpi/ESP-team - 2000-2001
* (C) MPlayer developers
*
* 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_VIDEO_OUT_H
#define MPLAYER_VIDEO_OUT_H
#include <inttypes.h>
#include <stdbool.h>
#include "libmpcodecs/img_format.h"
#include "mpcommon.h"
#define VO_EVENT_EXPOSE 1
#define VO_EVENT_RESIZE 2
#define VO_EVENT_KEYPRESS 4
#define VO_EVENT_REINIT 8
#define VO_EVENT_MOVE 16
enum mp_voctrl {
/* does the device support the required format */
VOCTRL_QUERY_FORMAT = 1,
/* signal a device reset seek */
VOCTRL_RESET,
/* used to switch to fullscreen */
VOCTRL_FULLSCREEN,
/* signal a device pause */
VOCTRL_PAUSE,
/* start/resume playback */
VOCTRL_RESUME,
/* libmpcodecs direct rendering */
VOCTRL_GET_IMAGE,
VOCTRL_DRAW_IMAGE,
VOCTRL_GET_PANSCAN,
VOCTRL_SET_PANSCAN,
VOCTRL_SET_EQUALIZER, // struct voctrl_set_equalizer_args
VOCTRL_GET_EQUALIZER, // struct voctrl_get_equalizer_args
VOCTRL_DUPLICATE_FRAME,
VOCTRL_START_SLICE,
VOCTRL_NEWFRAME,
VOCTRL_SKIPFRAME,
VOCTRL_REDRAW_FRAME,
VOCTRL_ONTOP,
VOCTRL_ROOTWIN,
VOCTRL_BORDER,
VOCTRL_SET_DEINTERLACE,
VOCTRL_GET_DEINTERLACE,
VOCTRL_UPDATE_SCREENINFO,
VOCTRL_SET_YUV_COLORSPACE, // struct mp_csp_details
VOCTRL_GET_YUV_COLORSPACE, // struct mp_csp_details
VOCTRL_SCREENSHOT, // struct voctrl_screenshot_args
VOCTRL_SET_COMMAND_LINE, // char*
};
// VOCTRL_SET_EQUALIZER
struct voctrl_set_equalizer_args {
const char *name;
int value;
};
// VOCTRL_GET_EQUALIZER
struct voctrl_get_equalizer_args {
const char *name;
int *valueptr;
};
// VOCTRL_SCREENSHOT
struct voctrl_screenshot_args {
// 0: Save image of the currently displayed video frame, in original
// resolution.
// 1: Save full screenshot of the window. Should contain OSD, EOSD, and the
// scaled video.
// The value of this variable can be ignored if only a single method is
// implemented.
int full_window;
// Will be set to a newly allocated image, that contains the screenshot.
// The caller has to free the pointer with free_mp_image().
// It is not specified whether the image data is a copy or references the
// image data directly.
// Is never NULL. (Failure has to be indicated by returning VO_FALSE.)
struct mp_image *out_image;
// Whether the VO rendered OSD/subtitles into out_image
bool has_osd;
};
typedef struct {
int x,y;
int w,h;
} mp_win_t;
#define VO_TRUE 1
#define VO_FALSE 0
#define VO_ERROR -1
#define VO_NOTAVAIL -2
#define VO_NOTIMPL -3
#define VOFLAG_FULLSCREEN 0x01
#define VOFLAG_MODESWITCHING 0x02
#define VOFLAG_SWSCALE 0x04
#define VOFLAG_FLIPPING 0x08
#define VOFLAG_HIDDEN 0x10 //< Use to create a hidden window
#define VOFLAG_STEREO 0x20 //< Use to create a stereo-capable window
#define VOFLAG_GL_DEBUG 0x40 // Hint to request debug OpenGL context
typedef struct vo_info_s
{
/* driver name ("Matrox Millennium G200/G400" */
const char *name;
/* short name (for config strings) ("vdpau") */
const char *short_name;
/* author ("Aaron Holtzman <aholtzma@ess.engr.uvic.ca>") */
const char *author;
/* any additional comments */
const char *comment;
} vo_info_t;
struct vo;
struct osd_state;
struct mp_image;
struct vo_driver {
// Driver uses new API
bool is_new;
// Driver buffers or adds (deinterlace) frames and will keep track
// of pts values itself
bool buffer_frames;
const vo_info_t *info;
/*
* Preinitializes driver (real INITIALIZATION)
* arg - currently it's vo_subdevice
* returns: zero on successful initialization, non-zero on error.
*/
int (*preinit)(struct vo *vo, const char *arg);
/*
* Initialize (means CONFIGURE) the display driver.
* params:
* width,height: image source size
* d_width,d_height: size of the requested window size, just a hint
* fullscreen: flag, 0=windowd 1=fullscreen, just a hint
* title: window title, if available
* format: fourcc of pixel format
* returns : zero on successful initialization, non-zero on error.
*/
int (*config)(struct vo *vo, uint32_t width, uint32_t height,
uint32_t d_width, uint32_t d_height, uint32_t fullscreen,
uint32_t format);
/*
* Control interface
*/
int (*control)(struct vo *vo, uint32_t request, void *data);
void (*draw_image)(struct vo *vo, struct mp_image *mpi, double pts);
/*
* Get extra frames from the VO, such as those added by VDPAU
* deinterlace. Preparing the next such frame if any could be done
* automatically by the VO after a previous flip_page(), but having
* it as a separate step seems to allow making code more robust.
*/
void (*get_buffered_frame)(struct vo *vo, bool eof);
/*
* Draw a planar YUV slice to the buffer:
* params:
* src[3] = source image planes (Y,U,V)
* stride[3] = source image planes line widths (in bytes)
* w,h = width*height of area to be copied (in Y pixels)
* x,y = position at the destination image (in Y pixels)
*/
int (*draw_slice)(struct vo *vo, uint8_t *src[], int stride[], int w,
int h, int x, int y);
/*
* Draws OSD to the screen buffer
*/
void (*draw_osd)(struct vo *vo, struct osd_state *osd);
/*
* Blit/Flip buffer to the screen. Must be called after each frame!
*/
void (*flip_page)(struct vo *vo);
void (*flip_page_timed)(struct vo *vo, unsigned int pts_us, int duration);
/*
* This func is called after every frames to handle keyboard and
* other events. It's called in PAUSE mode too!
*/
void (*check_events)(struct vo *vo);
/*
* Closes driver. Should restore the original state of the system.
*/
void (*uninit)(struct vo *vo);
// Size of private struct for automatic allocation (0 doesn't allocate)
int priv_size;
// If not NULL, it's copied into the newly allocated private struct.
const void *priv_defaults;
// List of options to parse into priv struct (requires privsize to be set)
const struct m_option *options;
};
struct vo {
int config_ok; // Last config call was successful?
int config_count; // Total number of successful config calls
bool frame_loaded; // Is there a next frame the VO could flip to?
struct mp_image *waiting_mpi;
double next_pts; // pts value of the next frame if any
double next_pts2; // optional pts of frame after that
bool want_redraw; // visible frame wrong (window resize), needs refresh
bool redrawing; // between redrawing frame and flipping it
bool hasframe; // >= 1 frame has been drawn, so redraw is possible
double flip_queue_offset; // queue flip events at most this much in advance
const struct vo_driver *driver;
void *priv;
struct MPOpts *opts;
struct vo_x11_state *x11;
struct vo_w32_state *w32;
struct mp_fifo *key_fifo;
struct encode_lavc_context *encode_lavc_ctx;
struct input_ctx *input_ctx;
int event_fd; // check_events() should be called when this has input
int registered_fd; // set to event_fd when registered in input system
// requested position/resolution
int dx;
int dy;
int dwidth;
int dheight;
int panscan_x;
int panscan_y;
float panscan_amount;
float monitor_par;
struct aspect_data {
int orgw; // real width
int orgh; // real height
int prew; // prescaled width
int preh; // prescaled height
float par; // pixel aspect ratio out of orgw/orgh and prew/preh
int scrw; // horizontal resolution
int scrh; // vertical resolution
float asp;
} aspdat;
char *window_title;
};
struct vo *init_best_video_out(struct MPOpts *opts,
struct mp_fifo *key_fifo,
struct input_ctx *input_ctx,
struct encode_lavc_context *encode_lavc_ctx);
int vo_config(struct vo *vo, uint32_t width, uint32_t height,
uint32_t d_width, uint32_t d_height, uint32_t flags,
uint32_t format);
void list_video_out(void);
int vo_control(struct vo *vo, uint32_t request, void *data);
int vo_draw_image(struct vo *vo, struct mp_image *mpi, double pts);
int vo_redraw_frame(struct vo *vo);
int vo_get_buffered_frame(struct vo *vo, bool eof);
void vo_skip_frame(struct vo *vo);
int vo_draw_slice(struct vo *vo, uint8_t *src[], int stride[], int w, int h, int x, int y);
void vo_new_frame_imminent(struct vo *vo);
void vo_draw_osd(struct vo *vo, struct osd_state *osd);
void vo_flip_page(struct vo *vo, unsigned int pts_us, int duration);
void vo_check_events(struct vo *vo);
void vo_seek_reset(struct vo *vo);
void vo_destroy(struct vo *vo);
const char *vo_get_window_title(struct vo *vo);
// NULL terminated array of all drivers
extern const struct vo_driver *video_out_drivers[];
extern int xinerama_screen;
extern int xinerama_x;
extern int xinerama_y;
extern int vo_grabpointer;
extern int vo_vsync;
extern int vo_fs;
extern int vo_fsmode;
extern float vo_panscan;
extern int vo_adapter_num;
extern int vo_refresh_rate;
extern int vo_keepaspect;
extern int vo_rootwin;
extern int vo_border;
extern int vo_nomouse_input;
extern int enable_mouse_movements;
extern int vo_pts;
extern float vo_fps;
extern int vo_colorkey;
extern int64_t WinID;
struct mp_keymap {
int from;
int to;
};
int lookup_keymap_table(const struct mp_keymap *map, int key);
struct vo_rect {
int left, right, top, bottom, width, height;
};
void calc_src_dst_rects(struct vo *vo, int src_width, int src_height,
struct vo_rect *src, struct vo_rect *dst,
struct vo_rect *borders, const struct vo_rect *crop);
void vo_mouse_movement(struct vo *vo, int posx, int posy);
static inline int aspect_scaling(void)
{
return vo_keepaspect || vo_fs;
}
#endif /* MPLAYER_VIDEO_OUT_H */
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