akhilcb / acbavplayerextension Goto Github PK

Perfect just what I need. But Sorry I am not familiar with C.
Is it possible to get an example on how to get a power meter value on an AVPlayer in swift ??

I can see the callback called goo on first item, when I change the item with method: replaceCurrentItemWithPlayerItem

    AVPlayerItem *item = [self audioItem];
    [self.player replaceCurrentItemWithPlayerItem:item];

the callback audioPCMBufferFetchedWithCallbackBlock is not called anymore.

I've also tried:

    [self.player play];
    [self.player setMeteringEnabled:YES];

    [self.player audioPCMBufferFetchedWithCallbackBlock:^(AVAudioPCMBuffer *audioPCMBuffer, BOOL iSuccess) {
        
    }];

forcing metering enabled to YES again...but nothing changes.

Are there come known issues with audio/video items?
How can I fix?

Great stuff!

The project seems exactly what I need but to make sure:

Is it possible to get the current amplitude as the media is being played?

I am thinking of doing a simple visualization and I'd like to get every 0.5s or so the current updated volume/amplitude of the audio being played. If so, how would I get that value (I'm thinking something between 0 and 1)?

Thanks in advance!

I ran some profiling with Instruments and found that this snippet in MYAudioTapProcessor.m, in particular the malloc, is causing severe memory leaks. I didn't need the channelVolumeList functionality for my use case so I commented it out but wanted to flag this for others.

if (aCount > 0) {
        context->channelVolumeList = malloc(aCount * sizeof(float));
        if (context->channelVolumeList == 0) {
            NSLog(@"Error! could not initialize channel volume list");
        }
}

Hi,
it seems that with HLS stream (m3u8), the volume meter doesn't work...
Could you check please?

thank you