mpv/video/out/vo.c

571 lines
17 KiB
C

/*
* libvo common functions, variables used by many/all drivers.
*
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <stdbool.h>
#include <unistd.h>
#include "talloc.h"
#include "config.h"
#include "osdep/timer.h"
#include "core/options.h"
#include "core/bstr.h"
#include "vo.h"
#include "aspect.h"
#include "core/input/input.h"
#include "core/mp_fifo.h"
#include "core/m_config.h"
#include "core/mp_msg.h"
#include "video/mp_image.h"
#include "video/vfcap.h"
#include "sub/sub.h"
//
// Externally visible list of all vo drivers
//
extern struct vo_driver video_out_x11;
extern struct vo_driver video_out_vdpau;
extern struct vo_driver video_out_xv;
extern struct vo_driver video_out_opengl;
extern struct vo_driver video_out_opengl_hq;
extern struct vo_driver video_out_opengl_old;
extern struct vo_driver video_out_null;
extern struct vo_driver video_out_image;
extern struct vo_driver video_out_lavc;
extern struct vo_driver video_out_caca;
extern struct vo_driver video_out_direct3d;
extern struct vo_driver video_out_direct3d_shaders;
extern struct vo_driver video_out_sdl;
extern struct vo_driver video_out_corevideo;
const struct vo_driver *video_out_drivers[] =
{
#if CONFIG_VDPAU
&video_out_vdpau,
#endif
#ifdef CONFIG_GL
&video_out_opengl,
#endif
#ifdef CONFIG_DIRECT3D
&video_out_direct3d_shaders,
&video_out_direct3d,
#endif
#ifdef CONFIG_COREVIDEO
&video_out_corevideo,
#endif
#ifdef CONFIG_XV
&video_out_xv,
#endif
#ifdef CONFIG_SDL2
&video_out_sdl,
#endif
#ifdef CONFIG_GL
&video_out_opengl_old,
#endif
#ifdef CONFIG_X11
&video_out_x11,
#endif
&video_out_null,
// should not be auto-selected
&video_out_image,
#ifdef CONFIG_CACA
&video_out_caca,
#endif
#ifdef CONFIG_ENCODING
&video_out_lavc,
#endif
#ifdef CONFIG_GL
&video_out_opengl_hq,
#endif
NULL
};
static int vo_preinit(struct vo *vo, char *arg)
{
if (vo->driver->encode != !!vo->encode_lavc_ctx)
return -1;
if (vo->driver->priv_size) {
vo->priv = talloc_zero_size(vo, vo->driver->priv_size);
if (vo->driver->priv_defaults)
memcpy(vo->priv, vo->driver->priv_defaults, vo->driver->priv_size);
}
if (vo->driver->options) {
struct m_config *cfg = m_config_simple(vo->priv);
talloc_steal(vo->priv, cfg);
m_config_register_options(cfg, vo->driver->options);
char n[50];
int l = snprintf(n, sizeof(n), "vo/%s", vo->driver->info->short_name);
assert(l < sizeof(n));
if (vo->driver->init_option_string) {
m_config_parse_suboptions(cfg, n,
(char *)vo->driver->init_option_string);
}
int r = m_config_parse_suboptions(cfg, n, arg);
if (r < 0) {
if (vo->driver->help_text)
mp_msg(MSGT_VO, MSGL_FATAL, "%s\n", vo->driver->help_text);
return r;
}
}
return vo->driver->preinit(vo, arg);
}
int vo_control(struct vo *vo, uint32_t request, void *data)
{
return vo->driver->control(vo, request, data);
}
void vo_queue_image(struct vo *vo, struct mp_image *mpi)
{
if (!vo->config_ok)
return;
if (vo->driver->buffer_frames) {
vo->driver->draw_image(vo, mpi);
return;
}
vo->frame_loaded = true;
vo->next_pts = mpi->pts;
assert(!vo->waiting_mpi);
vo->waiting_mpi = mp_image_new_ref(mpi);
}
int vo_redraw_frame(struct vo *vo)
{
if (!vo->config_ok || !vo->hasframe)
return -1;
if (vo_control(vo, VOCTRL_REDRAW_FRAME, NULL) == true) {
vo->want_redraw = false;
vo->redrawing = true;
return 0;
}
return -1;
}
bool vo_get_want_redraw(struct vo *vo)
{
if (!vo->config_ok || !vo->hasframe)
return false;
return vo->want_redraw;
}
int vo_get_buffered_frame(struct vo *vo, bool eof)
{
if (!vo->config_ok)
return -1;
if (vo->frame_loaded)
return 0;
if (!vo->driver->buffer_frames)
return -1;
vo->driver->get_buffered_frame(vo, eof);
return vo->frame_loaded ? 0 : -1;
}
void vo_skip_frame(struct vo *vo)
{
vo_control(vo, VOCTRL_SKIPFRAME, NULL);
vo->frame_loaded = false;
mp_image_unrefp(&vo->waiting_mpi);
}
void vo_new_frame_imminent(struct vo *vo)
{
if (vo->driver->buffer_frames)
vo_control(vo, VOCTRL_NEWFRAME, NULL);
else {
assert(vo->frame_loaded);
assert(vo->waiting_mpi);
assert(vo->waiting_mpi->pts == vo->next_pts);
vo->driver->draw_image(vo, vo->waiting_mpi);
mp_image_unrefp(&vo->waiting_mpi);
}
}
void vo_draw_osd(struct vo *vo, struct osd_state *osd)
{
if (vo->config_ok && vo->driver->draw_osd)
vo->driver->draw_osd(vo, osd);
}
void vo_flip_page(struct vo *vo, unsigned int pts_us, int duration)
{
if (!vo->config_ok)
return;
if (!vo->redrawing) {
vo->frame_loaded = false;
vo->next_pts = MP_NOPTS_VALUE;
}
vo->want_redraw = false;
vo->redrawing = false;
if (vo->driver->flip_page_timed)
vo->driver->flip_page_timed(vo, pts_us, duration);
else
vo->driver->flip_page(vo);
vo->hasframe = true;
}
void vo_check_events(struct vo *vo)
{
vo->next_wakeup_time = GetTimerMS() + 60 * 1000;
if (!vo->config_ok) {
if (vo->registered_fd != -1)
mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
vo->registered_fd = -1;
return;
}
vo->driver->check_events(vo);
}
// Return the amount of time vo_check_events() should be called in milliseconds.
// Note: video timing is completely separate from this.
unsigned int vo_get_sleep_time(struct vo *vo)
{
unsigned int sleep = 60 * 1000;
if (vo->config_ok && vo->next_wakeup_time) {
unsigned int now = GetTimerMS();
sleep = 0;
if (vo->next_wakeup_time >= now)
sleep = vo->next_wakeup_time - now;
}
return sleep;
}
void vo_seek_reset(struct vo *vo)
{
vo_control(vo, VOCTRL_RESET, NULL);
vo->frame_loaded = false;
vo->hasframe = false;
mp_image_unrefp(&vo->waiting_mpi);
}
void vo_destroy(struct vo *vo)
{
if (vo->registered_fd != -1)
mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
vo->driver->uninit(vo);
talloc_free(vo->waiting_mpi);
talloc_free(vo);
}
void list_video_out(void)
{
mp_tmsg(MSGT_CPLAYER, MSGL_INFO, "Available video output drivers:\n");
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_OUTPUTS\n");
for (int i = 0; video_out_drivers[i]; i++) {
const vo_info_t *info = video_out_drivers[i]->info;
if (!video_out_drivers[i]->encode) {
mp_msg(MSGT_GLOBAL, MSGL_INFO,"\t%s\t%s\n",
info->short_name, info->name);
}
}
mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
}
static void replace_legacy_vo_name(bstr *name)
{
bstr new = *name;
if (bstr_equals0(*name, "gl"))
new = bstr0("opengl");
if (bstr_equals0(*name, "gl3"))
new = bstr0("opengl-hq");
if (!bstr_equals(*name, new)) {
mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "VO driver '%.*s' has been replaced "
"with '%.*s'!\n", BSTR_P(*name), BSTR_P(new));
}
*name = new;
}
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)
{
char **vo_list = opts->video_driver_list;
int i;
struct vo *vo = talloc_ptrtype(NULL, vo);
struct vo initial_values = {
.opts = opts,
.key_fifo = key_fifo,
.encode_lavc_ctx = encode_lavc_ctx,
.input_ctx = input_ctx,
.event_fd = -1,
.registered_fd = -1,
.aspdat = { .monitor_par = 1 },
};
// first try the preferred drivers, with their optional subdevice param:
if (vo_list && vo_list[0])
while (vo_list[0][0]) {
char *arg = vo_list[0];
bstr name = bstr0(arg);
char *params = strchr(arg, ':');
if (params) {
name = bstr_splice(name, 0, params - arg);
params++;
}
replace_legacy_vo_name(&name);
for (i = 0; video_out_drivers[i]; i++) {
const struct vo_driver *video_driver = video_out_drivers[i];
const vo_info_t *info = video_driver->info;
if (bstr_equals0(name, info->short_name)) {
// name matches, try it
*vo = initial_values;
vo->driver = video_driver;
if (!vo_preinit(vo, params))
return vo; // success!
talloc_free_children(vo);
}
}
// continue...
++vo_list;
if (!(vo_list[0])) {
talloc_free(vo);
return NULL; // do NOT fallback to others
}
}
// now try the rest...
for (i = 0; video_out_drivers[i]; i++) {
const struct vo_driver *video_driver = video_out_drivers[i];
*vo = initial_values;
vo->driver = video_driver;
if (!vo_preinit(vo, NULL))
return vo; // success!
talloc_free_children(vo);
}
talloc_free(vo);
return NULL;
}
// Fit *w/*h into the size specified by geo.
static void apply_autofit(int *w, int *h, int scr_w, int scr_h,
struct m_geometry *geo, bool allow_upscale)
{
if (!geo->wh_valid)
return;
int dummy;
int n_w = *w, n_h = *h;
m_geometry_apply(&dummy, &dummy, &n_w, &n_h, scr_w, scr_h, geo);
if (!allow_upscale && *w <= n_w && *h <= n_h)
return;
// If aspect mismatches, always make the window smaller than the fit box
double asp = (double)*w / *h;
double n_asp = (double)n_w / n_h;
if (n_asp <= asp) {
*w = n_w;
*h = n_w / asp;
} else {
*w = n_h * asp;
*h = n_h;
}
}
// Set window size (vo->dwidth/dheight) and position (vo->dx/dy) according to
// the video display size d_w/d_h.
// NOTE: currently, all GUI backends do their own handling of window geometry
// additional to this code. This is to deal with initial window placement,
// fullscreen handling, avoiding resize on config() with no size change,
// multi-monitor stuff, and possibly more.
static void determine_window_geometry(struct vo *vo, int d_w, int d_h)
{
struct mp_vo_opts *opts = vo->opts;
int scr_w = opts->screenwidth;
int scr_h = opts->screenheight;
aspect_calc_monitor(vo, &d_w, &d_h);
apply_autofit(&d_w, &d_h, scr_w, scr_h, &opts->autofit, true);
apply_autofit(&d_w, &d_h, scr_w, scr_h, &opts->autofit_larger, false);
vo->dx = (int)(opts->screenwidth - d_w) / 2;
vo->dy = (int)(opts->screenheight - d_h) / 2;
m_geometry_apply(&vo->dx, &vo->dy, &d_w, &d_h, scr_w, scr_h,
&opts->geometry);
vo->dx += vo->xinerama_x;
vo->dy += vo->xinerama_y;
vo->dwidth = d_w;
vo->dheight = d_h;
}
static int event_fd_callback(void *ctx, int fd)
{
struct vo *vo = ctx;
vo_check_events(vo);
return MP_INPUT_NOTHING;
}
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)
{
aspect_save_videores(vo, width, height, d_width, d_height);
if (vo_control(vo, VOCTRL_UPDATE_SCREENINFO, NULL) == VO_TRUE) {
determine_window_geometry(vo, d_width, d_height);
d_width = vo->dwidth;
d_height = vo->dheight;
}
int ret = vo->driver->config(vo, width, height, d_width, d_height, flags,
format);
vo->config_ok = (ret == 0);
vo->config_count += vo->config_ok;
if (vo->registered_fd == -1 && vo->event_fd != -1 && vo->config_ok) {
mp_input_add_key_fd(vo->input_ctx, vo->event_fd, 1, event_fd_callback,
NULL, vo);
vo->registered_fd = vo->event_fd;
}
vo->frame_loaded = false;
vo->waiting_mpi = NULL;
vo->redrawing = false;
vo->hasframe = false;
return ret;
}
/**
* \brief lookup an integer in a table, table must have 0 as the last key
* \param key key to search for
* \result translation corresponding to key or "to" value of last mapping
* if not found.
*/
int lookup_keymap_table(const struct mp_keymap *map, int key) {
while (map->from && map->from != key) map++;
return map->to;
}
static void print_video_rect(struct vo *vo, struct mp_rect src,
struct mp_rect dst, struct mp_osd_res osd)
{
int lv = MSGL_V;
int sw = src.x1 - src.x0, sh = src.y1 - src.y0;
int dw = dst.x1 - dst.x0, dh = dst.y1 - dst.y0;
mp_msg(MSGT_VO, lv, "[vo] Window size: %dx%d\n",
vo->dwidth, vo->dheight);
mp_msg(MSGT_VO, lv, "[vo] Video source: %dx%d (%dx%d)\n",
vo->aspdat.orgw, vo->aspdat.orgh,
vo->aspdat.prew, vo->aspdat.preh);
mp_msg(MSGT_VO, lv, "[vo] Video display: (%d, %d) %dx%d -> (%d, %d) %dx%d\n",
src.x0, src.y0, sw, sh, dst.x0, dst.y0, dw, dh);
mp_msg(MSGT_VO, lv, "[vo] Video scale: %f/%f\n",
(double)dw / sw, (double)dh / sh);
mp_msg(MSGT_VO, lv, "[vo] OSD borders: l=%d t=%d r=%d b=%d\n",
osd.ml, osd.mt, osd.mr, osd.mb);
mp_msg(MSGT_VO, lv, "[vo] Video borders: l=%d t=%d r=%d b=%d\n",
dst.x0, dst.y0, vo->dwidth - dst.x1, vo->dheight - dst.y1);
}
static void src_dst_split_scaling(int src_size, int dst_size,
int scaled_src_size, int *src_start,
int *src_end, int *dst_start, int *dst_end)
{
if (scaled_src_size > dst_size) {
int border = src_size * (scaled_src_size - dst_size) / scaled_src_size;
// round to a multiple of 2, this is at least needed for vo_direct3d
// and ATI cards
border = (border / 2 + 1) & ~1;
*src_start = border;
*src_end = src_size - border;
*dst_start = 0;
*dst_end = dst_size;
} else {
*src_start = 0;
*src_end = src_size;
*dst_start = (dst_size - scaled_src_size) / 2;
*dst_end = *dst_start + scaled_src_size;
}
}
// Calculate the appropriate source and destination rectangle to
// get a correctly scaled picture, including pan-scan.
// out_src: visible part of the video
// out_dst: area of screen covered by the video source rectangle
// out_osd: OSD size, OSD margins, etc.
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)
{
int src_w = vo->aspdat.orgw;
int src_h = vo->aspdat.orgh;
struct mp_rect dst = {0, 0, vo->dwidth, vo->dheight};
struct mp_rect src = {0, 0, src_w, src_h};
struct mp_osd_res osd = {
.w = vo->dwidth,
.h = vo->dheight,
.display_par = vo->aspdat.monitor_par,
.video_par = vo->aspdat.par,
};
if (vo->opts->keepaspect) {
int scaled_width, scaled_height;
aspect_calc_panscan(vo, &scaled_width, &scaled_height);
int border_w = vo->dwidth - scaled_width;
int border_h = vo->dheight - scaled_height;
osd.ml = border_w / 2;
osd.mt = border_h / 2;
osd.mr = border_w - osd.ml;
osd.mb = border_h - osd.mt;
src_dst_split_scaling(src_w, vo->dwidth, scaled_width,
&src.x0, &src.x1, &dst.x0, &dst.x1);
src_dst_split_scaling(src_h, vo->dheight, scaled_height,
&src.y0, &src.y1, &dst.y0, &dst.y1);
}
*out_src = src;
*out_dst = dst;
*out_osd = osd;
print_video_rect(vo, src, dst, osd);
}
// Return the window title the VO should set. Always returns a null terminated
// string. The string is valid until frontend code is invoked again. Copy it if
// you need to keep the string for an extended period of time.
const char *vo_get_window_title(struct vo *vo)
{
if (!vo->window_title)
vo->window_title = talloc_strdup(vo, "");
return vo->window_title;
}
/**
* Generates a mouse movement message if those are enable and sends it
* to the "main" MPlayer.
*
* \param posx new x position of mouse
* \param posy new y position of mouse
*/
void vo_mouse_movement(struct vo *vo, int posx, int posy)
{
char cmd_str[40];
if (!vo->opts->enable_mouse_movements)
return;
snprintf(cmd_str, sizeof(cmd_str), "set_mouse_pos %i %i", posx, posy);
mp_input_queue_cmd(vo->input_ctx, mp_input_parse_cmd(bstr0(cmd_str), ""));
}