mpv/DOCS/client_api_examples/cocoabasic.m

118 lines
2.9 KiB
Objective-C

// Plays a video from the command line in a window provided by mpv.
// You likely want to play the video in your own window instead,
// but that's not quite ready yet.
// You may need a basic Info.plist and MainMenu.xib to make this work.
#include "../../libmpv/client.h"
#include "shared.h"
#import <Cocoa/Cocoa.h>
@interface AppDelegate : NSObject <NSApplicationDelegate>
{
mpv_handle *mpv;
dispatch_queue_t queue;
}
@end
static void wakeup(void *);
@implementation AppDelegate
- (void) applicationDidFinishLaunching:(NSNotification *)notification {
// Read filename
NSArray *args = [NSProcessInfo processInfo].arguments;
if (args.count < 2) {
NSLog(@"Expected filename on command line");
exit(1);
}
NSString *filename = args[1];
// Deal with MPV in the background.
queue = dispatch_queue_create("mpv", DISPATCH_QUEUE_SERIAL);
dispatch_async(queue, ^{
mpv = mpv_create();
if (!mpv) {
printf("failed creating context\n");
exit(1);
}
// Maybe set some options here, like default key bindings.
// NOTE: Interaction with the window seems to be broken for now.
check_error(mpv_set_option_string(mpv, "input-default-bindings", "yes"));
check_error(mpv_initialize(mpv));
// Register to be woken up whenever mpv generates new events.
mpv_set_wakeup_callback(mpv, wakeup, (__bridge void *) self);
// Load the indicated file
const char *cmd[] = {"loadfile", filename.UTF8String, NULL};
check_error(mpv_command(mpv, cmd));
});
}
- (void) handleEvent:(mpv_event *)event
{
switch (event->event_id) {
case MPV_EVENT_SHUTDOWN:
// Clean up and shut down.
mpv_terminate_destroy(mpv);
mpv = NULL;
dispatch_async(dispatch_get_main_queue(), ^{
[[NSApplication sharedApplication] terminate:nil];
});
break;
default:
printf("event: %s\n", mpv_event_name(event->event_id));
}
}
- (void) readEvents
{
dispatch_async(queue, ^{
while (mpv) {
mpv_event *event = mpv_wait_event(mpv, 0);
if (event->event_id == MPV_EVENT_NONE)
break;
[self handleEvent:event];
}
});
}
static void wakeup(void *context) {
AppDelegate *a = (__bridge AppDelegate *) context;
[a readEvents];
}
// Ostensibly, mpv's window would be hooked up to this.
- (BOOL) windowShouldClose:(id)sender
{
[self shutdown];
return YES;
}
- (void) shutdown
{
if (mpv) {
const char *args[] = {"quit", NULL};
mpv_command(mpv, args);
}
}
@end
// Delete this if you already have a main.m.
int main(int argc, const char * argv[]) {
@autoreleasepool {
NSApplication *app = [NSApplication new];
AppDelegate *delegate = [AppDelegate new];
app.delegate = delegate;
[app run];
}
return EXIT_SUCCESS;
}