mirror of https://github.com/mpv-player/mpv
340 lines
11 KiB
C
340 lines
11 KiB
C
/*
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* Copyright (C) Aaron Holtzman - Aug 1999
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* Strongly modified, most parts rewritten: A'rpi/ESP-team - 2000-2001
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* (C) MPlayer developers
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_VIDEO_OUT_H
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#define MPLAYER_VIDEO_OUT_H
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#include <inttypes.h>
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#include <stdbool.h>
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#include "video/img_format.h"
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#include "common/common.h"
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#include "options/options.h"
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// VO needs to redraw
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#define VO_EVENT_EXPOSE 1
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// VO needs to update state to a new window size
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#define VO_EVENT_RESIZE 2
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// The ICC profile needs to be reloaded
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#define VO_EVENT_ICC_PROFILE_PATH_CHANGED 4
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// Some other window state changed
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#define VO_EVENT_WIN_STATE 8
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// Set of events the player core may be interested in.
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#define VO_EVENTS_USER (VO_EVENT_RESIZE | VO_EVENT_WIN_STATE)
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enum mp_voctrl {
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/* signal a device reset seek */
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VOCTRL_RESET = 1,
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/* Handle input and redraw events, called by vo_check_events() */
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VOCTRL_CHECK_EVENTS,
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/* used to switch to fullscreen */
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VOCTRL_FULLSCREEN,
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/* signal a device pause */
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VOCTRL_PAUSE,
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/* start/resume playback */
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VOCTRL_RESUME,
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VOCTRL_GET_PANSCAN,
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VOCTRL_SET_PANSCAN,
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VOCTRL_SET_EQUALIZER, // struct voctrl_set_equalizer_args*
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VOCTRL_GET_EQUALIZER, // struct voctrl_get_equalizer_args*
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/* for hardware decoding */
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VOCTRL_GET_HWDEC_INFO, // struct mp_hwdec_info**
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VOCTRL_LOAD_HWDEC_API, // private to vo_opengl
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// Redraw the image previously passed to draw_image() (basically, repeat
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// the previous draw_image call). If this is handled, the OSD should also
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// be updated and redrawn.
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VOCTRL_REDRAW_FRAME,
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VOCTRL_ONTOP,
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VOCTRL_BORDER,
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VOCTRL_UPDATE_WINDOW_TITLE, // char*
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VOCTRL_SET_CURSOR_VISIBILITY, // bool*
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VOCTRL_KILL_SCREENSAVER,
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VOCTRL_RESTORE_SCREENSAVER,
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VOCTRL_SET_DEINTERLACE,
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VOCTRL_GET_DEINTERLACE,
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// Return or set window size (not-fullscreen mode only - if fullscreened,
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// these must access the not-fullscreened window size only).
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VOCTRL_GET_UNFS_WINDOW_SIZE, // int[2] (w/h)
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VOCTRL_SET_UNFS_WINDOW_SIZE, // int[2] (w/h)
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VOCTRL_GET_WIN_STATE, // int* (VO_WIN_STATE_* flags)
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// char *** (NULL terminated array compatible with CONF_TYPE_STRING_LIST)
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// names for displays the window is on
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VOCTRL_GET_DISPLAY_NAMES,
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// The VO is supposed to set "known" fields, and leave the others
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// untouched or set to 0.
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// imgfmt/w/h/d_w/d_h can be omitted for convenience.
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VOCTRL_GET_COLORSPACE, // struct mp_image_params*
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VOCTRL_SCREENSHOT, // struct voctrl_screenshot_args*
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VOCTRL_SET_COMMAND_LINE, // char**
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VOCTRL_GET_ICC_PROFILE_PATH, // char**
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VOCTRL_GET_DISPLAY_FPS, // double*
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VOCTRL_GET_RECENT_FLIP_TIME, // int64_t* (using mp_time_us())
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VOCTRL_GET_PREF_DEINT, // int*
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};
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// VOCTRL_SET_EQUALIZER
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struct voctrl_set_equalizer_args {
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const char *name;
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int value;
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};
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// VOCTRL_GET_EQUALIZER
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struct voctrl_get_equalizer_args {
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const char *name;
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int *valueptr;
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};
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// VOCTRL_SCREENSHOT
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struct voctrl_screenshot_args {
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// 0: Save image of the currently displayed video frame, in original
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// resolution.
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// 1: Save full screenshot of the window. Should contain OSD, EOSD, and the
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// scaled video.
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// The value of this variable can be ignored if only a single method is
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// implemented.
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int full_window;
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// Will be set to a newly allocated image, that contains the screenshot.
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// The caller has to free the image with talloc_free().
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// It is not specified whether the image data is a copy or references the
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// image data directly.
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// Can be NULL on failure.
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struct mp_image *out_image;
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// Whether the VO rendered OSD/subtitles into out_image
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bool has_osd;
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};
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// VOCTRL_GET_WIN_STATE
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#define VO_WIN_STATE_MINIMIZED 1
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#define VO_TRUE true
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#define VO_FALSE false
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#define VO_ERROR -1
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#define VO_NOTAVAIL -2
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#define VO_NOTIMPL -3
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#define VOFLAG_FLIPPING 0x08
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#define VOFLAG_HIDDEN 0x10 //< Use to create a hidden window
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#define VOFLAG_STEREO 0x20 //< Use to create a stereo-capable window
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#define VOFLAG_GL_DEBUG 0x40 // Hint to request debug OpenGL context
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#define VOFLAG_ALPHA 0x80 // Hint to request alpha framebuffer
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// VO does handle mp_image_params.rotate in 90 degree steps
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#define VO_CAP_ROTATE90 1
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// VO does framedrop itself (vo_vdpau). Untimed/encoding VOs never drop.
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#define VO_CAP_FRAMEDROP 2
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#define VO_DEFAULT_FLIP_QUEUE_OFFSET ((uint64_t)(0.050 * 1e6))
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struct vo;
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struct osd_state;
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struct mp_image;
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struct mp_image_params;
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struct vo_driver {
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// Encoding functionality, which can be invoked via --o only.
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bool encode;
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// VO_CAP_* bits
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int caps;
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// Disable video timing, push frames as quickly as possible.
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bool untimed;
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const char *name;
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const char *description;
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/*
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* returns: zero on successful initialization, non-zero on error.
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*/
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int (*preinit)(struct vo *vo);
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/*
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* Whether the given image format is supported and config() will succeed.
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* format: one of IMGFMT_*
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* returns: 0 on not supported, otherwise a bitmask of VFCAP_* values
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*/
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int (*query_format)(struct vo *vo, uint32_t format);
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/*
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* Initialize or reconfigure the display driver.
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* params: video parameters, like pixel format and frame size
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* flags: combination of VOFLAG_ values
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* returns: < 0 on error, >= 0 on success
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*/
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int (*reconfig)(struct vo *vo, struct mp_image_params *params, int flags);
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/*
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* Control interface
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*/
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int (*control)(struct vo *vo, uint32_t request, void *data);
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/*
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* Render the given frame to the VO's backbuffer. This operation will be
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* followed by a draw_osd and a flip_page[_timed] call.
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* mpi belongs to the VO; the VO must free it eventually.
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*
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* This also should draw the OSD.
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*/
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void (*draw_image)(struct vo *vo, struct mp_image *mpi);
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/*
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* Blit/Flip buffer to the screen. Must be called after each frame!
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*/
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void (*flip_page)(struct vo *vo);
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/*
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* Timed version of flip_page (optional).
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* pts_us is the frame presentation time, linked to mp_time_us().
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* pts_us is 0 if the frame should be presented immediately.
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* duration is estimated time in us until the next frame is shown.
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* duration is -1 if it is unknown or unset (also: disable framedrop).
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* If the VO does manual framedropping, VO_CAP_FRAMEDROP should be set.
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* Returns 1 on display, or 0 if the frame was dropped.
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*/
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int (*flip_page_timed)(struct vo *vo, int64_t pts_us, int duration);
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/* These optional callbacks can be provided if the GUI framework used by
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* the VO requires entering a message loop for receiving events, does not
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* provide event_fd, and does not call vo_wakeup() from a separate thread
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* when there are new events.
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*
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* wait_events() will wait for new events, until the timeout expires, or the
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* function is interrupted. wakeup() is used to possibly interrupt the
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* event loop (wakeup() itself must be thread-safe, and not call any other
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* VO functions; it's the only vo_driver function with this requirement).
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* wakeup() should behave like a binary semaphore; if wait_events() is not
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* being called while wakeup() is, the next wait_events() call should exit
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* immediately.
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*/
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void (*wakeup)(struct vo *vo);
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int (*wait_events)(struct vo *vo, int64_t until_time_us);
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/*
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* Closes driver. Should restore the original state of the system.
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*/
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void (*uninit)(struct vo *vo);
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// Size of private struct for automatic allocation (0 doesn't allocate)
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int priv_size;
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// If not NULL, it's copied into the newly allocated private struct.
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const void *priv_defaults;
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// List of options to parse into priv struct (requires priv_size to be set)
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const struct m_option *options;
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};
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struct vo {
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const struct vo_driver *driver;
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struct mp_log *log; // Using e.g. "[vo/vdpau]" as prefix
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void *priv;
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struct mpv_global *global;
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struct vo_x11_state *x11;
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struct vo_w32_state *w32;
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struct vo_cocoa_state *cocoa;
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struct vo_wayland_state *wayland;
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struct input_ctx *input_ctx;
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struct osd_state *osd;
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struct encode_lavc_context *encode_lavc_ctx;
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struct vo_internal *in;
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struct mp_vo_opts *opts;
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// --- The following fields are generally only changed during initialization.
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int event_fd; // check_events() should be called when this has input
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bool probing;
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// --- The following fields are only changed with vo_reconfig(), and can
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// be accessed unsynchronized (read-only).
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int config_ok; // Last config call was successful?
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struct mp_image_params *params; // Configured parameters (as in vo_reconfig)
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// --- The following fields can be accessed only by the VO thread, or from
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// anywhere _if_ the VO thread is suspended (use vo->dispatch).
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bool want_redraw; // redraw as soon as possible
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// current window state
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int dwidth;
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int dheight;
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float monitor_par;
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};
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struct mpv_global;
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struct vo *init_best_video_out(struct mpv_global *global,
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struct input_ctx *input_ctx,
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struct osd_state *osd,
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struct encode_lavc_context *encode_lavc_ctx);
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int vo_reconfig(struct vo *vo, struct mp_image_params *p, int flags);
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int vo_control(struct vo *vo, uint32_t request, void *data);
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bool vo_is_ready_for_frame(struct vo *vo, int64_t next_pts);
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void vo_queue_frame(struct vo *vo, struct mp_image *image,
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int64_t pts_us, int64_t duration);
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void vo_wait_frame(struct vo *vo);
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bool vo_still_displaying(struct vo *vo);
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bool vo_has_frame(struct vo *vo);
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void vo_redraw(struct vo *vo);
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bool vo_want_redraw(struct vo *vo);
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void vo_seek_reset(struct vo *vo);
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void vo_destroy(struct vo *vo);
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void vo_set_paused(struct vo *vo, bool paused);
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int64_t vo_get_drop_count(struct vo *vo);
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int vo_query_format(struct vo *vo, int format);
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void vo_event(struct vo *vo, int event);
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int vo_query_and_reset_events(struct vo *vo, int events);
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void vo_set_flip_queue_offset(struct vo *vo, int64_t us);
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int64_t vo_get_vsync_interval(struct vo *vo);
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void vo_wakeup(struct vo *vo);
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const char *vo_get_window_title(struct vo *vo);
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struct mp_keymap {
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int from;
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int to;
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};
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int lookup_keymap_table(const struct mp_keymap *map, int key);
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struct mp_osd_res;
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void vo_get_src_dst_rects(struct vo *vo, struct mp_rect *out_src,
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struct mp_rect *out_dst, struct mp_osd_res *out_osd);
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#endif /* MPLAYER_VIDEO_OUT_H */
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