mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 00:02:13 +00:00
d6c99c8513
Glitches when resizing are still possible, but are reduced. Other VOs could support this too, but don't need to do so. (Totally avoiding glitches would be much more effort, and probably not worth the trouble. How about you just watch the video the player is playing, instead of spending your time resizing the window.)
470 lines
15 KiB
C
470 lines
15 KiB
C
/*
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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 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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* 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 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 mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <libavutil/common.h>
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#include "common/common.h"
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#include "stream/stream.h"
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#include "osdep/timer.h"
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#include "mpv_talloc.h"
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#include "options/options.h"
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#include "common/global.h"
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#include "common/msg.h"
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#include "player/client.h"
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#include "player/command.h"
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#include "osd.h"
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#include "osd_state.h"
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#include "dec_sub.h"
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#include "img_convert.h"
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#include "draw_bmp.h"
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#include "video/mp_image.h"
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#include "video/mp_image_pool.h"
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#define OPT_BASE_STRUCT struct osd_style_opts
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static const m_option_t style_opts[] = {
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OPT_STRING("font", font, 0),
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OPT_FLOATRANGE("font-size", font_size, 0, 1, 9000),
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OPT_COLOR("color", color, 0),
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OPT_COLOR("border-color", border_color, 0),
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OPT_COLOR("shadow-color", shadow_color, 0),
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OPT_COLOR("back-color", back_color, 0),
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OPT_FLOATRANGE("border-size", border_size, 0, 0, 10),
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OPT_FLOATRANGE("shadow-offset", shadow_offset, 0, 0, 10),
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OPT_FLOATRANGE("spacing", spacing, 0, -10, 10),
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OPT_INTRANGE("margin-x", margin_x, 0, 0, 300),
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OPT_INTRANGE("margin-y", margin_y, 0, 0, 600),
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OPT_CHOICE("align-x", align_x, 0,
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({"left", -1}, {"center", 0}, {"right", +1})),
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OPT_CHOICE("align-y", align_y, 0,
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({"top", -1}, {"center", 0}, {"bottom", +1})),
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OPT_FLOATRANGE("blur", blur, 0, 0, 20),
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OPT_FLAG("bold", bold, 0),
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{0}
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};
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const struct m_sub_options osd_style_conf = {
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.opts = style_opts,
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.size = sizeof(struct osd_style_opts),
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.defaults = &(const struct osd_style_opts){
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.font = "sans-serif",
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.font_size = 55,
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.color = {255, 255, 255, 255},
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.border_color = {0, 0, 0, 255},
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.shadow_color = {240, 240, 240, 128},
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.border_size = 3,
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.shadow_offset = 0,
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.margin_x = 25,
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.margin_y = 22,
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.align_x = -1,
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.align_y = -1,
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},
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};
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const struct m_sub_options sub_style_conf = {
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.opts = style_opts,
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.size = sizeof(struct osd_style_opts),
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.defaults = &(const struct osd_style_opts){
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.font = "sans-serif",
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.font_size = 55,
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.color = {255, 255, 255, 255},
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.border_color = {0, 0, 0, 255},
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.shadow_color = {240, 240, 240, 128},
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.border_size = 3,
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.shadow_offset = 0,
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.margin_x = 25,
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.margin_y = 22,
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.align_x = 0,
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.align_y = 1,
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},
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};
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static bool osd_res_equals(struct mp_osd_res a, struct mp_osd_res b)
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{
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return a.w == b.w && a.h == b.h && a.ml == b.ml && a.mt == b.mt
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&& a.mr == b.mr && a.mb == b.mb
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&& a.display_par == b.display_par;
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}
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struct osd_state *osd_create(struct mpv_global *global)
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{
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assert(MAX_OSD_PARTS >= OSDTYPE_COUNT);
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struct osd_state *osd = talloc_zero(NULL, struct osd_state);
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*osd = (struct osd_state) {
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.opts = global->opts,
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.global = global,
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.log = mp_log_new(osd, global->log, "osd"),
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};
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pthread_mutex_init(&osd->lock, NULL);
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for (int n = 0; n < MAX_OSD_PARTS; n++) {
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struct osd_object *obj = talloc(osd, struct osd_object);
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*obj = (struct osd_object) {
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.type = n,
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.text = talloc_strdup(obj, ""),
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.progbar_state = {.type = -1},
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};
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for (int i = 0; i < OSD_CONV_CACHE_MAX; i++)
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obj->cache[i] = talloc_steal(obj, osd_conv_cache_new());
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osd->objs[n] = obj;
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}
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osd->objs[OSDTYPE_SUB]->is_sub = true;
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osd->objs[OSDTYPE_SUB2]->is_sub = true;
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osd_init_backend(osd);
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return osd;
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}
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void osd_free(struct osd_state *osd)
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{
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if (!osd)
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return;
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osd_destroy_backend(osd);
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pthread_mutex_destroy(&osd->lock);
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talloc_free(osd);
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}
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void osd_changed_unlocked(struct osd_state *osd, int obj)
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{
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osd->objs[obj]->force_redraw = true;
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osd->want_redraw = true;
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}
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void osd_set_text(struct osd_state *osd, const char *text)
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{
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pthread_mutex_lock(&osd->lock);
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struct osd_object *osd_obj = osd->objs[OSDTYPE_OSD];
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if (!text)
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text = "";
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if (strcmp(osd_obj->text, text) != 0) {
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talloc_free(osd_obj->text);
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osd_obj->text = talloc_strdup(osd_obj, text);
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osd_changed_unlocked(osd, osd_obj->type);
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}
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pthread_mutex_unlock(&osd->lock);
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}
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void osd_set_sub(struct osd_state *osd, int index, struct dec_sub *dec_sub)
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{
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pthread_mutex_lock(&osd->lock);
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if (index >= 0 && index < 2)
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osd->objs[OSDTYPE_SUB + index]->sub = dec_sub;
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pthread_mutex_unlock(&osd->lock);
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}
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bool osd_get_render_subs_in_filter(struct osd_state *osd)
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{
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pthread_mutex_lock(&osd->lock);
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bool r = osd->render_subs_in_filter;
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pthread_mutex_unlock(&osd->lock);
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return r;
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}
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void osd_set_render_subs_in_filter(struct osd_state *osd, bool s)
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{
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pthread_mutex_lock(&osd->lock);
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osd->render_subs_in_filter = s;
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pthread_mutex_unlock(&osd->lock);
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}
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void osd_set_progbar(struct osd_state *osd, struct osd_progbar_state *s)
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{
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pthread_mutex_lock(&osd->lock);
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struct osd_object *osd_obj = osd->objs[OSDTYPE_OSD];
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osd_obj->progbar_state.type = s->type;
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osd_obj->progbar_state.value = s->value;
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osd_obj->progbar_state.num_stops = s->num_stops;
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MP_TARRAY_GROW(osd_obj, osd_obj->progbar_state.stops, s->num_stops);
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memcpy(osd_obj->progbar_state.stops, s->stops,
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sizeof(osd_obj->progbar_state.stops[0]) * s->num_stops);
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osd_changed_unlocked(osd, osd_obj->type);
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pthread_mutex_unlock(&osd->lock);
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}
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void osd_set_external2(struct osd_state *osd, struct sub_bitmaps *imgs)
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{
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pthread_mutex_lock(&osd->lock);
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osd->objs[OSDTYPE_EXTERNAL2]->external2 = imgs;
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osd_changed_unlocked(osd, OSDTYPE_EXTERNAL2);
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pthread_mutex_unlock(&osd->lock);
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}
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static void check_obj_resize(struct osd_state *osd, struct mp_osd_res res,
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struct osd_object *obj)
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{
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if (!osd_res_equals(res, obj->vo_res)) {
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obj->vo_res = res;
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obj->force_redraw = true;
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mp_client_broadcast_event(mp_client_api_get_core(osd->global->client_api),
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MP_EVENT_WIN_RESIZE, NULL);
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}
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}
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// Optional. Can be called for faster reaction of OSD-generating scripts like
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// osc.lua. This can achieve that the resize happens first, so that the OSD is
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// generated at the correct resolution the first time the resized frame is
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// rendered. Since the OSD doesn't (and can't) wait for the script, this
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// increases the time in which the script can react, and also gets rid of the
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// unavoidable redraw delay (though it will still be racy).
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// Unnecessary for anything else.
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void osd_resize(struct osd_state *osd, struct mp_osd_res res)
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{
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pthread_mutex_lock(&osd->lock);
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int types[] = {OSDTYPE_OSD, OSDTYPE_EXTERNAL, OSDTYPE_EXTERNAL2, -1};
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for (int n = 0; types[n] >= 0; n++)
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check_obj_resize(osd, res, osd->objs[types[n]]);
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pthread_mutex_unlock(&osd->lock);
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}
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static void render_object(struct osd_state *osd, struct osd_object *obj,
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struct mp_osd_res res, double video_pts,
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const bool sub_formats[SUBBITMAP_COUNT],
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struct sub_bitmaps *out_imgs)
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{
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struct MPOpts *opts = osd->opts;
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bool formats[SUBBITMAP_COUNT];
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memcpy(formats, sub_formats, sizeof(formats));
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if (opts->force_rgba_osd)
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formats[SUBBITMAP_LIBASS] = false;
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*out_imgs = (struct sub_bitmaps) {0};
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check_obj_resize(osd, res, obj);
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if (obj->type == OSDTYPE_SUB || obj->type == OSDTYPE_SUB2) {
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if (obj->sub) {
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double sub_pts = video_pts;
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if (sub_pts != MP_NOPTS_VALUE)
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sub_pts -= opts->sub_delay;
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sub_get_bitmaps(obj->sub, obj->vo_res, sub_pts, out_imgs);
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}
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} else if (obj->type == OSDTYPE_EXTERNAL2) {
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if (obj->external2 && obj->external2->format) {
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*out_imgs = *obj->external2;
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obj->external2->change_id = 0;
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}
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} else {
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osd_object_get_bitmaps(osd, obj, out_imgs);
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}
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if (obj->force_redraw)
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out_imgs->change_id++;
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obj->force_redraw = false;
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obj->vo_change_id += out_imgs->change_id;
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if (out_imgs->num_parts == 0)
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return;
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if (obj->cached.change_id == obj->vo_change_id && formats[obj->cached.format])
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{
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*out_imgs = obj->cached;
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return;
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}
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out_imgs->render_index = obj->type;
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out_imgs->change_id = obj->vo_change_id;
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if (formats[out_imgs->format])
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return;
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bool cached = false; // do we have a copy of all the image data?
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if (out_imgs->format == SUBBITMAP_INDEXED && opts->sub_gray)
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cached |= osd_conv_idx_to_gray(obj->cache[0], out_imgs);
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if (formats[SUBBITMAP_RGBA] && out_imgs->format == SUBBITMAP_INDEXED)
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cached |= osd_conv_idx_to_rgba(obj->cache[1], out_imgs);
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if (out_imgs->format == SUBBITMAP_RGBA && opts->sub_gauss != 0.0f)
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cached |= osd_conv_blur_rgba(obj->cache[2], out_imgs, opts->sub_gauss);
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// Do this conversion last to not trigger gauss blurring for ASS
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if (formats[SUBBITMAP_RGBA] && out_imgs->format == SUBBITMAP_LIBASS)
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cached |= osd_conv_ass_to_rgba(obj->cache[3], out_imgs);
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if (cached)
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obj->cached = *out_imgs;
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}
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// draw_flags is a bit field of OSD_DRAW_* constants
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void osd_draw(struct osd_state *osd, struct mp_osd_res res,
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double video_pts, int draw_flags,
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const bool formats[SUBBITMAP_COUNT],
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void (*cb)(void *ctx, struct sub_bitmaps *imgs), void *cb_ctx)
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{
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pthread_mutex_lock(&osd->lock);
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if (draw_flags & OSD_DRAW_SUB_FILTER)
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draw_flags |= OSD_DRAW_SUB_ONLY;
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for (int n = 0; n < MAX_OSD_PARTS; n++) {
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struct osd_object *obj = osd->objs[n];
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// Object is drawn into the video frame itself; don't draw twice
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if (osd->render_subs_in_filter && obj->is_sub &&
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!(draw_flags & OSD_DRAW_SUB_FILTER))
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continue;
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if ((draw_flags & OSD_DRAW_SUB_ONLY) && !obj->is_sub)
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continue;
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if ((draw_flags & OSD_DRAW_OSD_ONLY) && obj->is_sub)
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continue;
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if (obj->sub)
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sub_lock(obj->sub);
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struct sub_bitmaps imgs;
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render_object(osd, obj, res, video_pts, formats, &imgs);
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if (imgs.num_parts > 0) {
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if (formats[imgs.format]) {
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cb(cb_ctx, &imgs);
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} else {
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MP_ERR(osd, "Can't render OSD part %d (format %d).\n",
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obj->type, imgs.format);
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}
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}
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if (obj->sub)
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sub_unlock(obj->sub);
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}
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pthread_mutex_unlock(&osd->lock);
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}
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struct draw_on_image_closure {
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struct osd_state *osd;
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struct mp_image *dest;
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struct mp_image_pool *pool;
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bool changed;
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};
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static void draw_on_image(void *ctx, struct sub_bitmaps *imgs)
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{
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struct draw_on_image_closure *closure = ctx;
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struct osd_state *osd = closure->osd;
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if (!mp_image_pool_make_writeable(closure->pool, closure->dest))
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return; // on OOM, skip
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mp_draw_sub_bitmaps(&osd->draw_cache, closure->dest, imgs);
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talloc_steal(osd, osd->draw_cache);
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closure->changed = true;
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}
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// Calls mp_image_make_writeable() on the dest image if something is drawn.
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// Returns whether anything was drawn.
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bool osd_draw_on_image(struct osd_state *osd, struct mp_osd_res res,
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double video_pts, int draw_flags, struct mp_image *dest)
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{
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struct draw_on_image_closure closure = {osd, dest};
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osd_draw(osd, res, video_pts, draw_flags, mp_draw_sub_formats,
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&draw_on_image, &closure);
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return closure.changed;
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}
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// Like osd_draw_on_image(), but if dest needs to be copied to make it
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// writeable, allocate images from the given pool. (This is a minor
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// optimization to reduce "real" image sized memory allocations.)
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void osd_draw_on_image_p(struct osd_state *osd, struct mp_osd_res res,
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double video_pts, int draw_flags,
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struct mp_image_pool *pool, struct mp_image *dest)
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{
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struct draw_on_image_closure closure = {osd, dest, pool};
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osd_draw(osd, res, video_pts, draw_flags, mp_draw_sub_formats,
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&draw_on_image, &closure);
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}
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// Setup the OSD resolution to render into an image with the given parameters.
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// The interesting part about this is that OSD has to compensate the aspect
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// ratio if the image does not have a 1:1 pixel aspect ratio.
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struct mp_osd_res osd_res_from_image_params(const struct mp_image_params *p)
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{
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return (struct mp_osd_res) {
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.w = p->w,
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.h = p->h,
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.display_par = p->p_h / (double)p->p_w,
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};
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}
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void osd_changed(struct osd_state *osd, int new_value)
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{
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pthread_mutex_lock(&osd->lock);
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osd_changed_unlocked(osd, new_value);
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pthread_mutex_unlock(&osd->lock);
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}
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void osd_changed_all(struct osd_state *osd)
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{
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for (int n = 0; n < MAX_OSD_PARTS; n++)
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osd_changed(osd, n);
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}
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bool osd_query_and_reset_want_redraw(struct osd_state *osd)
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{
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pthread_mutex_lock(&osd->lock);
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bool r = osd->want_redraw;
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osd->want_redraw = false;
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pthread_mutex_unlock(&osd->lock);
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return r;
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}
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struct mp_osd_res osd_get_vo_res(struct osd_state *osd)
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{
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pthread_mutex_lock(&osd->lock);
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// Any OSDTYPE is fine; but it mustn't be a subtitle one (can have lower res.)
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struct mp_osd_res res = osd->objs[OSDTYPE_OSD]->vo_res;
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pthread_mutex_unlock(&osd->lock);
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return res;
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}
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// Position the subbitmaps in imgs on the screen. Basically, this fits the
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// subtitle canvas (of size frame_w x frame_h) onto the screen, such that it
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// fills the whole video area (especially if the video is magnified, e.g. on
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// fullscreen). If compensate_par is >0, adjust the way the subtitles are
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// "stretched" on the screen, and letter-box the result. If compensate_par
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// is <0, strictly letter-box the subtitles. If it is 0, stretch them.
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void osd_rescale_bitmaps(struct sub_bitmaps *imgs, int frame_w, int frame_h,
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struct mp_osd_res res, double compensate_par)
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{
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int vidw = res.w - res.ml - res.mr;
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int vidh = res.h - res.mt - res.mb;
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double xscale = (double)vidw / frame_w;
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double yscale = (double)vidh / frame_h;
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if (compensate_par < 0)
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compensate_par = xscale / yscale / res.display_par;
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if (compensate_par > 0)
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xscale /= compensate_par;
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int cx = vidw / 2 - (int)(frame_w * xscale) / 2;
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int cy = vidh / 2 - (int)(frame_h * yscale) / 2;
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for (int i = 0; i < imgs->num_parts; i++) {
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struct sub_bitmap *bi = &imgs->parts[i];
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bi->x = (int)(bi->x * xscale) + cx + res.ml;
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bi->y = (int)(bi->y * yscale) + cy + res.mt;
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bi->dw = (int)(bi->w * xscale + 0.5);
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bi->dh = (int)(bi->h * yscale + 0.5);
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}
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imgs->scaled = xscale != 1 || yscale != 1;
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}
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