// Allocate state and enable navigation features. Must happen before
// initializing cache, because the cache would read data. Since stream_dvdnav is
// in a mode which skips all transitions on reading data (before enabling
// navigation), this would skip some menu screens.
void mp_nav_init(struct MPContext *mpctx)
{
assert(!mpctx->nav_state);
// dvdnav is interactive
if (mpctx->encode_lavc_ctx)
return;
struct mp_nav_cmd inp = {MP_NAV_CMD_ENABLE};
if (stream_control(mpctx->stream, STREAM_CTRL_NAV_CMD, &inp) < 1)
return;
mpctx->nav_state = talloc_zero(NULL, struct mp_nav_state);
mpctx->nav_state->log = mp_log_new(mpctx->nav_state, mpctx->log, "discnav");
MP_VERBOSE(mpctx->nav_state, "enabling\n");
mp_input_enable_section(mpctx->input, "discnav", 0);
mp_input_set_section_mouse_area(mpctx->input, "discnav-menu",
INT_MIN, INT_MIN, INT_MAX, INT_MAX);
}
// Allocate state and enable navigation features. Must happen before
// initializing cache, because the cache would read data. Since stream_dvdnav is
// in a mode which skips all transitions on reading data (before enabling
// navigation), this would skip some menu screens.
void mp_nav_init(struct MPContext *mpctx)
{
assert(!mpctx->nav_state);
// dvdnav is interactive
if (mpctx->encode_lavc_ctx)
return;
struct mp_nav_cmd inp = {MP_NAV_CMD_ENABLE};
if (run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp) < 1)
return;
mpctx->nav_state = talloc_zero(NULL, struct mp_nav_state);
mpctx->nav_state->log = mp_log_new(mpctx->nav_state, mpctx->log, "discnav");
pthread_mutex_init(&mpctx->nav_state->osd_lock, NULL);
MP_VERBOSE(mpctx->nav_state, "enabling\n");
mp_input_enable_section(mpctx->input, "discnav",
MP_INPUT_ALLOW_VO_DRAGGING | MP_INPUT_ALLOW_HIDE_CURSOR);
update_state(mpctx);
update_mouse_on_button(mpctx);
}
void mp_handle_nav(struct MPContext *mpctx)
{
struct mp_nav_state *nav = mpctx->nav_state;
if (!nav)
return;
mpctx->sleeptime = MPMIN(mpctx->sleeptime, 0.5);
while (1) {
if (!mpctx->demuxer)
break;
struct mp_nav_event *ev = NULL;
demux_control(mpctx->demuxer, DEMUXER_CTRL_GET_NAV_EVENT, &ev);
if (!ev)
break;
switch (ev->event) {
case MP_NAV_EVENT_DRAIN: {
nav->nav_draining = true;
MP_VERBOSE(nav, "drain requested\n");
break;
}
case MP_NAV_EVENT_RESET_ALL: {
mpctx->stop_play = PT_RELOAD_DEMUXER;
MP_VERBOSE(nav, "reload\n");
// return immediately.
// other events should be handled after reloaded.
talloc_free(ev);
return;
}
case MP_NAV_EVENT_RESET: {
nav->nav_still_frame = 0;
break;
}
case MP_NAV_EVENT_EOF:
nav->nav_eof = true;
break;
case MP_NAV_EVENT_STILL_FRAME: {
int len = ev->u.still_frame.seconds;
MP_VERBOSE(nav, "wait for %d seconds\n", len);
if (len > 0 && nav->nav_still_frame == 0)
nav->nav_still_frame = len;
break;
}
case MP_NAV_EVENT_MENU_MODE:
nav->nav_menu = ev->u.menu_mode.enable;
if (nav->nav_menu) {
mp_input_enable_section(mpctx->input, "discnav-menu",
MP_INPUT_ON_TOP);
} else {
mp_input_disable_section(mpctx->input, "discnav-menu");
}
update_state(mpctx);
break;
case MP_NAV_EVENT_HIGHLIGHT: {
pthread_mutex_lock(&nav->osd_lock);
MP_VERBOSE(nav, "highlight: %d %d %d - %d %d\n",
ev->u.highlight.display,
ev->u.highlight.sx, ev->u.highlight.sy,
ev->u.highlight.ex, ev->u.highlight.ey);
nav->highlight[0] = ev->u.highlight.sx;
nav->highlight[1] = ev->u.highlight.sy;
nav->highlight[2] = ev->u.highlight.ex;
nav->highlight[3] = ev->u.highlight.ey;
nav->hi_visible = ev->u.highlight.display;
pthread_mutex_unlock(&nav->osd_lock);
update_resolution(mpctx);
osd_set_nav_highlight(mpctx->osd, mpctx);
break;
}
case MP_NAV_EVENT_OVERLAY: {
pthread_mutex_lock(&nav->osd_lock);
for (int i = 0; i < 2; i++) {
if (nav->overlays[i])
talloc_free(nav->overlays[i]);
nav->overlays[i] = talloc_steal(nav, ev->u.overlay.images[i]);
}
pthread_mutex_unlock(&nav->osd_lock);
update_resolution(mpctx);
osd_set_nav_highlight(mpctx->osd, mpctx);
break;
}
default: ; // ignore
}
talloc_free(ev);
}
update_resolution(mpctx);
if (mpctx->stop_play == AT_END_OF_FILE) {
if (nav->nav_still_frame > 0) {
// gross hack
mpctx->time_frame += nav->nav_still_frame;
nav->nav_still_frame = -2;
} else if (nav->nav_still_frame == -2) {
struct mp_nav_cmd inp = {MP_NAV_CMD_SKIP_STILL};
run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp);
}
}
if (nav->nav_draining && mpctx->stop_play == AT_END_OF_FILE) {
MP_VERBOSE(nav, "execute drain\n");
struct mp_nav_cmd inp = {MP_NAV_CMD_DRAIN_OK};
run_stream_control(mpctx, STREAM_CTRL_NAV_CMD, &inp);
nav->nav_draining = false;
run_stream_control(mpctx, STREAM_CTRL_RESUME_CACHE, NULL);
}
// E.g. keep displaying still frames
if (mpctx->stop_play == AT_END_OF_FILE && !nav->nav_eof)
mpctx->stop_play = KEEP_PLAYING;
}
