mpv/video/out/vo.h

319 lines
11 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 "common/common.h"
#include "options/options.h"
#define VO_EVENT_EXPOSE 1
#define VO_EVENT_RESIZE 2
#define VO_EVENT_ICC_PROFILE_PATH_CHANGED 4
enum mp_voctrl {
/* signal a device reset seek */
VOCTRL_RESET = 1,
/* Handle input and redraw events, called by vo_check_events() */
VOCTRL_CHECK_EVENTS,
/* 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 hardware decoding */
VOCTRL_GET_HWDEC_INFO, // struct mp_hwdec_info**
VOCTRL_LOAD_HWDEC_API, // private to vo_opengl
// Redraw the image previously passed to draw_image() (basically, repeat
// the previous draw_image call). If this is handled, the OSD should also
// be updated and redrawn.
VOCTRL_REDRAW_FRAME,
VOCTRL_ONTOP,
VOCTRL_BORDER,
VOCTRL_UPDATE_WINDOW_TITLE, // char*
VOCTRL_SET_CURSOR_VISIBILITY, // bool*
VOCTRL_KILL_SCREENSAVER,
VOCTRL_RESTORE_SCREENSAVER,
VOCTRL_SET_DEINTERLACE,
VOCTRL_GET_DEINTERLACE,
// Return or set window size (not-fullscreen mode only - if fullscreened,
// these must access the not-fullscreened window size only).
VOCTRL_GET_UNFS_WINDOW_SIZE, // int[2] (w/h)
VOCTRL_SET_UNFS_WINDOW_SIZE, // int[2] (w/h)
// The VO is supposed to set "known" fields, and leave the others
// untouched or set to 0.
// imgfmt/w/h/d_w/d_h can be omitted for convenience.
VOCTRL_GET_COLORSPACE, // struct mp_image_params*
VOCTRL_SCREENSHOT, // struct voctrl_screenshot_args*
VOCTRL_SET_COMMAND_LINE, // char**
VOCTRL_GET_ICC_PROFILE_PATH, // char**
VOCTRL_GET_DISPLAY_FPS, // double*
VOCTRL_GET_RECENT_FLIP_TIME, // int64_t* (using mp_time_us())
VOCTRL_GET_PREF_DEINT, // int*
};
// 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.
// Can be NULL on failure.
struct mp_image *out_image;
// Whether the VO rendered OSD/subtitles into out_image
bool has_osd;
};
#define VO_TRUE true
#define VO_FALSE false
#define VO_ERROR -1
#define VO_NOTAVAIL -2
#define VO_NOTIMPL -3
#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
// VO does handle mp_image_params.rotate in 90 degree steps
#define VO_CAP_ROTATE90 1
// VO does framedrop itself (vo_vdpau). Untimed/encoding VOs never drop.
#define VO_CAP_FRAMEDROP 2
struct vo;
struct osd_state;
struct mp_image;
struct mp_image_params;
struct vo_driver {
// Encoding functionality, which can be invoked via --o only.
bool encode;
// VO_CAP_* bits
int caps;
// Disable video timing, push frames as quickly as possible.
bool untimed;
const char *name;
const char *description;
/*
* returns: zero on successful initialization, non-zero on error.
*/
int (*preinit)(struct vo *vo);
/*
* 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 or reconfigure the display driver.
* params: video parameters, like pixel format and frame size
* flags: combination of VOFLAG_ values
* returns: < 0 on error, >= 0 on success
*/
int (*reconfig)(struct vo *vo, struct mp_image_params *params, int flags);
/*
* Control interface
*/
int (*control)(struct vo *vo, uint32_t request, void *data);
/*
* Render the given frame to the VO's backbuffer. This operation will be
* followed by a draw_osd and a flip_page[_timed] call.
* mpi belongs to the VO; the VO must free it eventually.
*
* This also should draw the OSD.
*/
void (*draw_image)(struct vo *vo, struct mp_image *mpi);
/*
* Blit/Flip buffer to the screen. Must be called after each frame!
*/
void (*flip_page)(struct vo *vo);
/*
* Timed version of flip_page (optional).
* pts_us is the frame presentation time, linked to mp_time_us().
* pts_us is 0 if the frame should be presented immediately.
* duration is estimated time in us until the next frame is shown.
* duration is -1 if it is unknown or unset (also: disable framedrop).
* If the VO does manual framedropping, VO_CAP_FRAMEDROP should be set.
* Returns 1 on display, or 0 if the frame was dropped.
*/
int (*flip_page_timed)(struct vo *vo, int64_t pts_us, int duration);
/* These optional callbacks can be provided if the GUI framework used by
* the VO requires entering a message loop for receiving events, does not
* provide event_fd, and does not call vo_wakeup() from a separate thread
* when there are new events.
*
* wait_events() will wait for new events, until the timeout expires, or the
* function is interrupted. wakeup() is used to possibly interrupt the
* event loop (wakeup() itself must be thread-safe, and not call any other
* VO functions; it's the only vo_driver function with this requirement).
* wakeup() should behave like a binary semaphore; if wait_events() is not
* being called while wakeup() is, the next wait_events() call should exit
* immediately.
*/
void (*wakeup)(struct vo *vo);
int (*wait_events)(struct vo *vo, int64_t until_time_us);
/*
* 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 priv_size to be set)
const struct m_option *options;
};
struct vo {
const struct vo_driver *driver;
struct mp_log *log; // Using e.g. "[vo/vdpau]" as prefix
void *priv;
struct mpv_global *global;
struct vo_x11_state *x11;
struct vo_w32_state *w32;
struct vo_cocoa_state *cocoa;
struct vo_wayland_state *wayland;
struct input_ctx *input_ctx;
struct osd_state *osd;
struct encode_lavc_context *encode_lavc_ctx;
struct vo_internal *in;
struct mp_vo_opts *opts;
// --- The following fields are generally only changed during initialization.
int event_fd; // check_events() should be called when this has input
bool probing;
// --- The following fields are only changed with vo_reconfig(), and can
// be accessed unsynchronized (read-only).
int config_ok; // Last config call was successful?
struct mp_image_params *params; // Configured parameters (as in vo_reconfig)
// --- The following fields can be accessed only by the VO thread, or from
// anywhere _if_ the VO thread is suspended (use vo->dispatch).
bool want_redraw; // redraw as soon as possible
// current window state
int dwidth;
int dheight;
float monitor_par;
};
struct mpv_global;
struct vo *init_best_video_out(struct mpv_global *global,
struct input_ctx *input_ctx,
struct osd_state *osd,
struct encode_lavc_context *encode_lavc_ctx);
int vo_reconfig(struct vo *vo, struct mp_image_params *p, int flags);
int vo_control(struct vo *vo, uint32_t request, void *data);
bool vo_is_ready_for_frame(struct vo *vo, int64_t next_pts);
void vo_queue_frame(struct vo *vo, struct mp_image *image,
int64_t pts_us, int64_t duration);
void vo_wait_frame(struct vo *vo);
bool vo_still_displaying(struct vo *vo);
bool vo_has_frame(struct vo *vo);
void vo_redraw(struct vo *vo);
bool vo_want_redraw(struct vo *vo);
void vo_seek_reset(struct vo *vo);
void vo_destroy(struct vo *vo);
void vo_set_paused(struct vo *vo, bool paused);
int64_t vo_get_drop_count(struct vo *vo);
int vo_query_format(struct vo *vo, int format);
void vo_set_flip_queue_offset(struct vo *vo, int64_t us);
int64_t vo_get_vsync_interval(struct vo *vo);
void vo_wakeup(struct vo *vo);
const char *vo_get_window_title(struct vo *vo);
struct mp_keymap {
int from;
int to;
};
int lookup_keymap_table(const struct mp_keymap *map, int key);
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 */