datumaro.plugins.data_formats.datumaro_binary.mapper.media#

Classes

`ImageMapper`()
`MediaElementMapper`()
`MediaMapper`()
`PointCloudMapper`()
`VideoFrameMapper`()
`VideoMapper`()

class datumaro.plugins.data_formats.datumaro_binary.mapper.media.MediaMapper[source]#

Bases: Mapper

classmethod forward(obj: MediaElement | None) → bytes[source]#: Convert an object to bytes.

classmethod backward(_bytes: bytes, offset: int = 0, media_path_prefix: Dict[MediaType, str] | None = None) → Tuple[MediaElement | None, int][source]#: Build an object from bytes.

class datumaro.plugins.data_formats.datumaro_binary.mapper.media.MediaElementMapper[source]#

Bases: Mapper

MAGIC_PATH = '/NOT/A/REAL/PATH'#

MEDIA_TYPE = 1#

classmethod forward(obj: MediaElement) → bytes[source]#: Convert an object to bytes.

classmethod backward_dict(_bytes: bytes, offset: int = 0, media_path_prefix: Dict[MediaType, str] | None = None) → Tuple[Dict, int][source]#

classmethod backward(_bytes: bytes, offset: int = 0, media_path_prefix: Dict[MediaType, str] | None = None) → Tuple[MediaElement, int][source]#: Build an object from bytes.

class datumaro.plugins.data_formats.datumaro_binary.mapper.media.ImageMapper[source]#

Bases: MediaElementMapper

MAGIC_SIZE_FOR_NONE = (-1583, -1597)#

MEDIA_TYPE = 2#

classmethod forward(obj: Image) → bytes[source]#: Convert an object to bytes.

classmethod backward(_bytes: bytes, offset: int = 0, media_path_prefix: Dict[MediaType, str] | None = None) → Tuple[Image, int][source]#: Build an object from bytes.

class datumaro.plugins.data_formats.datumaro_binary.mapper.media.VideoMapper[source]#

Bases: MediaElementMapper

MAGIC_END_FRAME_FOR_NONE = 4294967295#

MEDIA_TYPE = 5#

classmethod forward(obj: Video) → bytes[source]#: Convert an object to bytes.

classmethod backward(_bytes: bytes, offset: int = 0, media_path_prefix: Dict[MediaType, str] | None = None) → Tuple[Video, int][source]#: Build an object from bytes.

class datumaro.plugins.data_formats.datumaro_binary.mapper.media.VideoFrameMapper[source]#

Bases: MediaElementMapper

MEDIA_TYPE = 4#

classmethod forward(obj: VideoFrame) → bytes[source]#: Convert an object to bytes.

classmethod backward(_bytes: bytes, offset: int = 0, media_path_prefix: Dict[MediaType, str] | None = None) → Tuple[VideoFrame, int][source]#: Build an object from bytes.

class datumaro.plugins.data_formats.datumaro_binary.mapper.media.PointCloudMapper[source]#

Bases: MediaElementMapper

MEDIA_TYPE = 6#

classmethod forward(obj: PointCloud) → bytes[source]#: Convert an object to bytes.

classmethod backward(_bytes: bytes, offset: int = 0, media_path_prefix: Dict[MediaType, str] | None = None) → Tuple[PointCloud, int][source]#: Build an object from bytes.