GI.GstAudio.Structs.AudioMeta

AudioDownmixMeta defines an audio downmix matrix to be send along with audio buffers. These functions in this module help to create and attach the meta as well as extracting it.

Since: 1.16

Exported types

newtype AudioMeta

Memory-managed wrapper type.

Constructors

AudioMeta (ManagedPtr AudioMeta)

Instances

WrappedPtr AudioMeta

Defined in GI.GstAudio.Structs.AudioMeta

Methods

wrappedPtrCalloc :: IO (Ptr AudioMeta)

wrappedPtrCopy :: AudioMeta -> IO AudioMeta

wrappedPtrFree :: Maybe (GDestroyNotify AudioMeta)

tag ~ AttrSet => Constructible AudioMeta tag

Defined in GI.GstAudio.Structs.AudioMeta

Methods

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

newZeroAudioMeta :: MonadIO m => m AudioMeta

Construct a AudioMeta struct initialized to zero.

noAudioMeta :: Maybe AudioMeta

A convenience alias for Nothing :: Maybe AudioMeta.

Methods

getInfo

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

No description available in the introspection data.

Properties

info

the audio properties of the buffer

getAudioMetaInfo :: MonadIO m => AudioMeta -> m AudioInfo

Get the value of the “info” field. When overloading is enabled, this is equivalent to

get audioMeta #info

meta

parent Meta

getAudioMetaMeta :: MonadIO m => AudioMeta -> m Meta

Get the value of the “meta” field. When overloading is enabled, this is equivalent to

get audioMeta #meta

offsets

the offsets (in bytes) where each channel plane starts in the buffer or Nothing if the buffer has interleaved layout; if not Nothing, this is guaranteed to be an array of info.channels elements

getAudioMetaOffsets :: MonadIO m => AudioMeta -> m Word64

Get the value of the “offsets” field. When overloading is enabled, this is equivalent to

get audioMeta #offsets

setAudioMetaOffsets :: MonadIO m => AudioMeta -> Word64 -> m ()

Set the value of the “offsets” field. When overloading is enabled, this is equivalent to

set audioMeta [ #offsets := value ]

samples

the number of valid samples in the buffer

getAudioMetaSamples :: MonadIO m => AudioMeta -> m Word64

Get the value of the “samples” field. When overloading is enabled, this is equivalent to

get audioMeta #samples

setAudioMetaSamples :: MonadIO m => AudioMeta -> Word64 -> m ()

Set the value of the “samples” field. When overloading is enabled, this is equivalent to

set audioMeta [ #samples := value ]