Failed to decode sound

Sir_Benya · February 18, 2021, 7:51pm

Hello guys
I’m trying to add sound in my game, but I’m receiving this error:

Pls help me. What does it mean and how can I deal with it?

P.S.
All my sounds in .wav and under 44100

britzl · February 18, 2021, 9:44pm

Ok, let’s look at the code. The error comes from this line in comp_sound.cpp (the sound component):

defold/defold/blob/dev/engine/gamesys/src/gamesys/components/comp_sound.cpp#L397


            dmSound::SetParameter(entry.m_SoundInstance, dmSound::PARAMETER_PAN, Vectormath::Aos::Vector4(pan, 0, 0, 0));
            dmSound::SetParameter(entry.m_SoundInstance, dmSound::PARAMETER_SPEED, Vectormath::Aos::Vector4(speed, 0, 0, 0));
            dmSound::SetLooping(entry.m_SoundInstance, sound->m_Looping, (sound->m_Looping && !sound->m_Loopcount) ? -1 : sound->m_Loopcount ); // loopcounter semantics differ a bit from loopcount. If -1, it means loopforever, otherwise it contains the # of loops remaining.


            entry.m_Listener = params.m_Message->m_Sender;
        }
        else
        {
            // Free the sound index slot if we can't create a sound-instance.
            world->m_EntryIndices.Push(index);
            LogMessageError(params.m_Message, "A sound could not be played, error: %d.", result);
        }
    }
    else
    {
        LogMessageError(params.m_Message, "A sound could not be played since the sound buffer is full (%d).", world->m_EntryIndices.Capacity());
    }
}
else if (params.m_Message->m_Descriptor == (uintptr_t)dmGameSystemDDF::StopSound::m_DDFDescriptor)
{
    for (uint32_t i = 0; i < world->m_Entries.Size(); ++i)

The result/error codes are defined in sound.h:

github.com

defold/defold/blob/dev/engine/sound/src/sound.h#L50


enum Result
{
    RESULT_OK                 =  0,    //!< RESULT_OK
    RESULT_OUT_OF_SOURCES     = -1,    //!< RESULT_OUT_OF_SOURCES
    RESULT_EFFECT_NOT_FOUND   = -2,    //!< RESULT_EFFECT_NOT_FOUND
    RESULT_OUT_OF_INSTANCES   = -3,    //!< RESULT_OUT_OF_INSTANCES
    RESULT_RESOURCE_LEAK      = -4,    //!< RESULT_RESOURCE_LEAK
    RESULT_OUT_OF_BUFFERS     = -5,    //!< RESULT_OUT_OF_BUFFERS
    RESULT_INVALID_PROPERTY   = -6,    //!< RESULT_INVALID_PROPERTY
    RESULT_UNKNOWN_SOUND_TYPE = -7,    //!< RESULT_UNKNOWN_SOUND_TYPE
    RESULT_INVALID_STREAM_DATA= -8,    //!< RESULT_INVALID_STREAM_DATA
    RESULT_OUT_OF_MEMORY      = -9,    //!< RESULT_OUT_OF_MEMORY
    RESULT_UNSUPPORTED        = -10,   //!< RESULT_UNSUPPORTED
    RESULT_DEVICE_NOT_FOUND   = -11,   //!< RESULT_DEVICE_NOT_FOUND
    RESULT_OUT_OF_GROUPS      = -12,   //!< RESULT_OUT_OF_GROUPS
    RESULT_NO_SUCH_GROUP      = -13,   //!< RESULT_NO_SUCH_GROUP
    RESULT_NOTHING_TO_PLAY    = -14,   //!< RESULT_NOTHING_TO_PLAY
    RESULT_INIT_ERROR         = -15,   //!< RESULT_INIT_ERROR
    RESULT_FINI_ERROR         = -16,   //!< RESULT_FINI_ERROR
    RESULT_UNKNOWN_ERROR      = -1000, //!< RESULT_UNKNOWN_ERROR
};

-8 is RESULT_INVALID_STREAM_DATA and it happens when trying to decode the sound:

github.com

defold/defold/blob/dev/engine/sound/src/sound.cpp#L546-L550


dmSoundCodec::Result r = dmSoundCodec::NewDecoder(ss->m_CodecContext, codec_format, sound_data->m_Data, sound_data->m_Size, &decoder);
if (r != dmSoundCodec::RESULT_OK) {
    dmLogError("Failed to decode sound (%d)", r);
    return RESULT_INVALID_STREAM_DATA;
}

This finally leads us to “Failed to decode sound (-2)” with the -2 being an error code of dmSoundCodec::Result which we find here:

github.com

defold/defold/blob/dev/engine/sound/src/sound_codec.h#L33


/// Decoder handle
typedef struct Decoder* HDecoder;


/**
 * Result codes
 */
enum Result
{
    RESULT_OK = 0,               //!< RESULT_OK
    RESULT_OUT_OF_RESOURCES = -1,//!< RESULT_OUT_OF_RESOURCES
    RESULT_INVALID_FORMAT = -2,  //!< RESULT_INVALID_FORMAT
    RESULT_DECODE_ERROR = -3,    //!< RESULT_DECODE_ERROR
    RESULT_UNSUPPORTED = -4,     //!< RESULT_UNSUPPORTED
    RESULT_UNKNOWN_ERROR = -1000,//!< RESULT_UNKNOWN_ERROR
};


/**
 * Codec format
 */
enum Format
{

-2 is RESULT_INVALID_FORMAT so there is definitely something wrong with your sounds! Perhaps you can share one of the wav files here?

Sir_Benya · February 19, 2021, 8:21am

Oh sorry
For real, after decreasing my sounds to 44100hz went something wrong and they stoped playing…
Sorry again, i had to check it before posting the question