🎥 Video API¶
linuxpy.video.device
¶
Human friendly interface to V4L2 (Video 4 Linux 2) subsystem.
V4L2Error
¶
Bases: Exception
Video for linux 2 error
Frame(data: bytes, buff: raw.v4l2_buffer, format: Format)
¶
The resulting object from an acquisition.
EventReader(device: Device, max_queue_size=100)
¶
aread()
async
¶
Wait for next event or return last event in queue
FrameReader(device: Device, raw_read: Callable[[], Buffer], max_queue_size: int = 1)
¶
aread() -> Frame
async
¶
Wait for next frame or return last frame
create_buffer(fd, buffer_type: BufferType, memory: Memory) -> raw.v4l2_buffer
¶
request + query buffers
create_buffers(fd, buffer_type: BufferType, memory: Memory, count: int) -> list[raw.v4l2_buffer]
¶
request + query buffers
create_mmap_buffers(fd, buffer_type: BufferType, memory: Memory, count: int) -> list[mmap.mmap]
¶
create buffers + mmap_from_buffer
iter_video_files(path: PathLike = '/dev') -> Iterable[Path]
¶
Returns an iterator over all video files
iter_devices(path: PathLike = '/dev', **kwargs) -> Iterable[Device]
¶
Returns an iterator over all video devices
iter_video_capture_files(path: PathLike = '/dev') -> Iterable[Path]
¶
Returns an iterator over all video files that have CAPTURE capability
iter_video_capture_devices(path: PathLike = '/dev', **kwargs) -> Iterable[Device]
¶
Returns an iterator over all video devices that have CAPTURE capability
iter_video_output_files(path: PathLike = '/dev') -> Iterable[Path]
¶
Some drivers (ex: v4l2loopback) don't report being output capable so that apps like zoom recognize them as valid capture devices so some results might be missing
iter_video_output_devices(path: PathLike = '/dev', **kwargs) -> Iterable[Device]
¶
Returns an iterator over all video devices that have VIDEO OUTPUT capability