mirror of
https://github.com/mpv-player/mpv
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0b70598358
0739cfc209 added the draw_frame API
deprecated draw_image internally. VOs that still used draw_image were
around, but really there's no reason to not just "upgrade" them anyway.
draw_frame is what the "real" VOs that people care about (gpu/gpu-next)
use. So we can just simplfy the code a bit now. VOCTRL_REDRAW_FRAME is
also no longer needed so that can be completely deleted as well. Note
that several of these VOs are legacy crap anyway (e.g. vaapi) and maybe
should just be deleted but whatever. vo_direct3d was also completely
untested (not that anyone should ever use it).
105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/*
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* based on video_out_null.c from mpeg2dec
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*
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* Copyright (C) Aaron Holtzman - June 2000
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*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include "common/msg.h"
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#include "vo.h"
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#include "video/mp_image.h"
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#include "osdep/timer.h"
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#include "options/m_option.h"
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struct priv {
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int64_t last_vsync;
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double cfg_fps;
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};
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static void draw_frame(struct vo *vo, struct vo_frame *frame)
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{
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}
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static void flip_page(struct vo *vo)
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{
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struct priv *p = vo->priv;
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if (p->cfg_fps) {
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int64_t ft = 1e6 / p->cfg_fps;
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int64_t prev_vsync = mp_time_us() / ft;
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int64_t target_time = (prev_vsync + 1) * ft;
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for (;;) {
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int64_t now = mp_time_us();
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if (now >= target_time)
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break;
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mp_sleep_us(target_time - now);
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}
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}
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}
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static int query_format(struct vo *vo, int format)
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{
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return 1;
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}
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static int reconfig(struct vo *vo, struct mp_image_params *params)
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{
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return 0;
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}
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static void uninit(struct vo *vo)
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{
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}
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static int preinit(struct vo *vo)
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{
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return 0;
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}
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static int control(struct vo *vo, uint32_t request, void *data)
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{
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struct priv *p = vo->priv;
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switch (request) {
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case VOCTRL_GET_DISPLAY_FPS:
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if (!p->cfg_fps)
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break;
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*(double *)data = p->cfg_fps;
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return VO_TRUE;
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}
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return VO_NOTIMPL;
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}
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#define OPT_BASE_STRUCT struct priv
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const struct vo_driver video_out_null = {
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.description = "Null video output",
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.name = "null",
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.preinit = preinit,
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.query_format = query_format,
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.reconfig = reconfig,
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.control = control,
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.draw_frame = draw_frame,
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.flip_page = flip_page,
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.uninit = uninit,
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.priv_size = sizeof(struct priv),
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.options = (const struct m_option[]) {
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{"fps", OPT_DOUBLE(cfg_fps), M_RANGE(0, 10000)},
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{0},
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},
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.options_prefix = "vo-null",
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};
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