Add experimental.decoders.video for CPU

[banasraf]

Signed-off-by: Rafal [email protected]

This PR adds the CPU video decoder operator. It decodes a video file loaded to a memory buffer. In this first iteration, only the simplest scenario is implemented - decoding whole video file (1 video = 1 sample).

Category:

New feature

Description:

It adds a new feature needed for video inferencing.

Additional information:

Affected modules and functionalities:

New operator.

Key points relevant for the review:

Decoding impl, potential optimizations

Tests:

• [ ] Existing tests apply
• [X] New tests added
  • [X] Python tests
  • [ ] GTests
  • [ ] Benchmark
  • [ ] Other
• [ ] N/A

Checklist

Documentation

• [ ] Existing documentation applies
• [X] Documentation updated
  • [X] Docstring
  • [ ] Doxygen
  • [ ] RST
  • [ ] Jupyter
  • [ ] Other
• [ ] N/A

DALI team only

Requirements

• [X] Implements new requirements
• [ ] Affects existing requirements
• [ ] N/A

REQ IDs: DECVID

JIRA TASK: DALI-2974