Determening MPMovieController bit-rate

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北恋
北恋 2021-01-14 18:19

Is there a way to determine the bit-rate of the stream an MPMovieController is playing? I am programming in objective-c on iOS

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  •  [愿得一人]
    2021-01-14 18:37

    You can get the indicated bit rate from event, which is the bit rate of the stream according to the m3u8. To calculate the actual bit rate I divide event.numberOfBytesTransferred / event.durationWatched and multiply by 8.

    NSArray *events = self.player.accessLog.events;
        MPMovieAccessLogEvent *event = (MPMovieAccessLogEvent *)[events lastObject];
    double calculatedBitRate = 8 * event.numberOfBytesTransferred / event.durationWatched;
        value = [nf stringFromNumber:[NSNumber numberWithDouble:calculatedBitRate]];
        self.calculatedBitRateLabel.text = [NSString stringWithFormat:@"My calculated bit rate = %@", value];
    

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