GI.GstAudio.Structs.AudioDownmixMeta

Extra buffer metadata describing audio downmixing matrix. This metadata is attached to audio buffers and contains a matrix to downmix the buffer number of channels to channels.

matrix is an two-dimensional array of toChannels times fromChannels coefficients, i.e. the i-th output channels is constructed by multiplicating the input channels with the coefficients in matrix[i] and taking the sum of the results.

Exported types

newtype AudioDownmixMeta

Constructors

AudioDownmixMeta (ManagedPtr AudioDownmixMeta)

Instances

WrappedPtr AudioDownmixMeta

Methods

wrappedPtrCalloc :: IO (Ptr AudioDownmixMeta)

wrappedPtrCopy :: AudioDownmixMeta -> IO AudioDownmixMeta

wrappedPtrFree :: Maybe (FunPtr (Ptr AudioDownmixMeta -> IO ()))

(~) AttrOpTag tag AttrSet => Constructible AudioDownmixMeta tag

Methods

new :: MonadIO m => (ManagedPtr AudioDownmixMeta -> AudioDownmixMeta) -> [AttrOp AudioDownmixMeta tag] -> m AudioDownmixMeta

newZeroAudioDownmixMeta :: MonadIO m => m AudioDownmixMeta

Construct a AudioDownmixMeta struct initialized to zero.

noAudioDownmixMeta :: Maybe AudioDownmixMeta

Methods

getInfo

audioDownmixMetaGetInfo :: (HasCallStack, MonadIO m) => m MetaInfo

No description available in the introspection data.

Properties

fromChannels

getAudioDownmixMetaFromChannels :: MonadIO m => AudioDownmixMeta -> m Int32

setAudioDownmixMetaFromChannels :: MonadIO m => AudioDownmixMeta -> Int32 -> m ()

fromPosition

getAudioDownmixMetaFromPosition :: MonadIO m => AudioDownmixMeta -> m AudioChannelPosition

setAudioDownmixMetaFromPosition :: MonadIO m => AudioDownmixMeta -> AudioChannelPosition -> m ()

matrix

getAudioDownmixMetaMatrix :: MonadIO m => AudioDownmixMeta -> m Float

setAudioDownmixMetaMatrix :: MonadIO m => AudioDownmixMeta -> Float -> m ()

meta

getAudioDownmixMetaMeta :: MonadIO m => AudioDownmixMeta -> m Meta

toChannels

getAudioDownmixMetaToChannels :: MonadIO m => AudioDownmixMeta -> m Int32

setAudioDownmixMetaToChannels :: MonadIO m => AudioDownmixMeta -> Int32 -> m ()

toPosition

getAudioDownmixMetaToPosition :: MonadIO m => AudioDownmixMeta -> m AudioChannelPosition

setAudioDownmixMetaToPosition :: MonadIO m => AudioDownmixMeta -> AudioChannelPosition -> m ()