SFBAudioEngine used in Swift project

[sbooth]

SFBAudioEngine used in Swift project

[sbooth]

You don't need to register the decoder subclasses- they are registered automatically at static initialization time.

I see your file is located in the Containers directory. Is this a sandboxed app? Perhaps powerboxd is denying access?

[pzs7602]

modify AudioPlayer.cpp as follows:

bool SFB::Audio::Player::Play(CFURLRef url)
{
    if(nullptr == url)
        return false;

//  auto decoder = Decoder::CreateForURL(url);
    // modify above line to:
    SFB::CFString extension = CFURLCopyPathExtension(url);
    Decoder::unique_ptr decoder;
    if(kCFCompareEqualTo == CFStringCompare(extension, CFSTR("flac"), kCFCompareCaseInsensitive)){
        decoder = FLACDecoder::CreateDecoder(InputSource::CreateForURL(url));
    }
    else if(kCFCompareEqualTo == CFStringCompare(extension, CFSTR("ape"), kCFCompareCaseInsensitive)){
        decoder = MonkeysAudioDecoder::CreateDecoder(InputSource::CreateForURL(url));
    }
    else if(kCFCompareEqualTo == CFStringCompare(extension, CFSTR("tta"), kCFCompareCaseInsensitive)){
        decoder = TrueAudioDecoder::CreateDecoder(InputSource::CreateForURL(url));
    }
    else if(kCFCompareEqualTo == CFStringCompare(extension, CFSTR("ogg"), kCFCompareCaseInsensitive)){
        decoder = OggVorbisDecoder::CreateDecoder(InputSource::CreateForURL(url));
    }
    else if(kCFCompareEqualTo == CFStringCompare(extension, CFSTR("wv"), kCFCompareCaseInsensitive)){
        decoder = WavPackDecoder::CreateDecoder(InputSource::CreateForURL(url));
    }
    else if(kCFCompareEqualTo == CFStringCompare(extension, CFSTR("aiff"), kCFCompareCaseInsensitive)){
        LOGGER_DEBUG("org.sbooth.AudioEngine.Player", "create sndfile decoder");
        decoder = LibsndfileDecoder::CreateDecoder(InputSource::CreateForURL(url));
    }
    else{
        decoder = Decoder::CreateForURL(url);
    }
    return Play(decoder);
}

then the audio file(flac/ape/wavpack/...) can be played. don't know why.

[sbooth]

If you step through Decoder::CreateURL() can you determine where the failure occurs?

[pzs7602]

Still can't determine where the failure occurs, the decoder returned by original code is not NULL.

BTW, how to set the volume of the audio player?
thanks.

[sbooth]

Setting the player volume is slightly clunky. If you're using the core audio output:

auto& output = dynamic_cast<SFB::Audio::CoreAudioOutput&>player->GetOutput();
output.SetVolume(0.8);

Obviously this is C++ so to do this from Swift you would need to add some code to your AudioPlayerWrapper class.

[sbooth]

Is this still a problem? I'd like to close this issue if not.