I'm trying to call ffmpeg from NSTask in objective-c. I execute the ffmpeg command in terminal and it works flawlessly every time. I make the same command using NSTask, and it never gives me the whole output. It cuts it off half way through the output, at a seemingly random spot every time. Here is my code.
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
NSString* ffmpegPath = [[NSBundle mainBundle] pathForResource:@"ffmpeg" ofType:@""];
NSString* path = @"test.mov";
NSTask *task = [[NSTask alloc] init];
NSArray *arguments = [NSArray arrayWithObjects: @"-i", path, nil];
NSPipe *pipe = [NSPipe pipe];
NSFileHandle * read = [pipe fileHandleForReading];
[task setLaunchPath: ffmpegPath];
[task setArguments: arguments];
[task setStandardOutput: pipe];
[task launch];
[task waitUntilExit];
NSData* data = [read readDataToEndOfFile];
NSString* stringOutput = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"%@", stringOutput);
NSLog(@"%i", [task terminationStatus]);
NSLog(@"DONE");
}
