xarray_video.H264#

class xarray_video.H264(fps=25, crf=None)[source]#

Codec providing compression using h264 via pyav

Parameters:

  • fps (int (optional)) – Frames per second in compressed chunk (default 25)

  • crf (int (optional)) – Constant Rate Factor (default None). The range of the CRF scale is 0–51, where 0 is lossless, and 51 is worst quality possible. If None will use the ffmepg defautt (23).

Attributes

codec_id

Codec identifier.

Methods

__init__(fps=25, crf=None)[source]#
decode(buf, out=None)[source]#

Decode data in buf.

Parameters:

  • buf (buffer-like) – Encoded data. May be any object supporting the new-style buffer protocol.

  • out (buffer-like, optional) – Writeable buffer to store decoded data. N.B. if provided, this buffer must be exactly the right size to store the decoded data.

Returns:

dec – Decoded data. May be any object supporting the new-style buffer protocol.

Return type:

buffer-like

encode(buf)[source]#

Encode data in buf.

Parameters:

buf (buffer-like) – Data to be encoded. May be any object supporting the new-style buffer protocol.

Returns:

enc – Encoded data. May be any object supporting the new-style buffer protocol.

Return type:

buffer-like