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mpv/video/out/vo.h

322 lines
10 KiB
C

/*
* 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 "video/img_format.h"
#include "core/mp_common.h"
#include "core/options.h"
#define VO_EVENT_EXPOSE 1
#define VO_EVENT_RESIZE 2
enum mp_voctrl {
/* signal a device reset seek */
VOCTRL_RESET = 1,
/* used to switch to fullscreen */
VOCTRL_FULLSCREEN,
/* signal a device pause */
VOCTRL_PAUSE,
/* start/resume playback */
VOCTRL_RESUME,
VOCTRL_GET_PANSCAN,
VOCTRL_SET_PANSCAN,
VOCTRL_SET_EQUALIZER, // struct voctrl_set_equalizer_args
VOCTRL_GET_EQUALIZER, // struct voctrl_get_equalizer_args
/* for vdpau hardware decoding */
VOCTRL_HWDEC_DECODER_RENDER, // pointer to hw state
VOCTRL_HWDEC_ALLOC_SURFACE, // struct mp_image**
VOCTRL_NEWFRAME,
VOCTRL_SKIPFRAME,
VOCTRL_REDRAW_FRAME,
VOCTRL_ONTOP,
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 image with talloc_free().
// 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;
};
#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_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
#define VOFLAG_ALPHA 0x80 // Hint to request alpha framebuffer
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 buffers or adds (deinterlace) frames and will keep track
// of pts values itself
bool buffer_frames;
// Encoding functionality, which can be invoked via --o only.
bool encode;
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);
/*
* Whether the given image format is supported and config() will succeed.
* format: one of IMGFMT_*
* returns: 0 on not supported, otherwise a bitmask of VFCAP_* values
*/
int (*query_format)(struct vo *vo, uint32_t format);
/*
* 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);
void (*draw_image_pts)(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);
/*
* 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;
// Help text to print when option parsing fails
const char *help_text;
// Parse these options before parsing user options
const char *init_option_string;
};
struct vo {
int config_ok; // Last config call was successful?
int config_count; // Total number of successful config calls
bool untimed; // non-interactive, don't do sleep calls in playloop
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 wakeup_period; // if > 0, this sets the maximum wakeup period for event polling
double flip_queue_offset; // queue flip events at most this much in advance
unsigned int next_wakeup_time; // deadline for next vo_check_events() call,
// in GetTimerMS() units (set by VO)
const struct vo_driver *driver;
void *priv;
struct mp_vo_opts *opts;
struct vo_x11_state *x11;
struct vo_w32_state *w32;
struct vo_cocoa_state *cocoa;
struct vo_wayland_state *wayland;
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 (usually window position/window size)
int dx;
int dy;
int dwidth;
int dheight;
int xinerama_x;
int xinerama_y;
struct aspect_data {
float monitor_par; // out of screen size or from options
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
float asp; // final video display aspect
} aspdat;
char *window_title;
};
struct vo *init_best_video_out(struct mp_vo_opts *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);
void vo_queue_image(struct vo *vo, struct mp_image *mpi);
int vo_redraw_frame(struct vo *vo);
bool vo_get_want_redraw(struct vo *vo);
int vo_get_buffered_frame(struct vo *vo, bool eof);
void vo_skip_frame(struct vo *vo);
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);
unsigned int vo_get_sleep_time(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[];
struct mp_keymap {
int from;
int to;
};
int lookup_keymap_table(const struct mp_keymap *map, int key);
void vo_mouse_movement(struct vo *vo, int posx, int posy);
struct mp_osd_res;
void vo_get_src_dst_rects(struct vo *vo, struct mp_rect *out_src,
struct mp_rect *out_dst, struct mp_osd_res *out_osd);
#endif /* MPLAYER_VIDEO_OUT_H */