Pyav

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Minor:

- Update FFmpeg to 4.3.2 for the binary wheels.
- Provide binary wheels for Python 3.10 (:issue:`820`).
- Stop providing binary wheels for end-of-life Python 3.6.
- Fix args order in Frame.__repr__ (:issue:`749`).
- Fix documentation to remove unavailable QUIET log level (:issue:`719`).
- Expose codec_context.codec_tag (:issue:`741`).
- Add example for encoding with a custom PTS (:issue:`725`).
- Use av_packet_rescale_ts in Packet._rebase_time() (:issue:`737`).
- Do not hardcode errno values in test suite (:issue:`729`).
- Use av_guess_format for output container format (:issue:`691`).
- Fix setting CodecContext.extradata (:issue:`658`, :issue:`740`).
- Fix documentation code block indentation (:issue:`783`).
- Fix link to Conda installation instructions (:issue:`782`).
- Export AudioStream from av.audio (:issue:`775`).
- Fix setting CodecContext.extradata (:issue:`801`).

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Minor:

- Update FFmpeg to 4.3.1 for the binary wheels.

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Minor:

- Enable GnuTLS support in the FFmpeg build used for binary wheels (:issue:`675`).
- Make binary wheels compatible with Mac OS X 10.9+ (:issue:`662`).
- Drop Python 2.x buffer protocol code.
- Remove references to previous repository location.

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Minor:

- Enable additional FFmpeg features in the binary wheels.
- Use os.fsencode for both input and output file names (:issue:`600`).

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Major:

- Drop support for Python 2 and Python 3.4.
- Provide binary wheels for Linux, Mac and Windows.

Minor:

- Remove shims for obsolete FFmpeg versions (:issue:`588`).
- Add yuvj420p format for :meth:`VideoFrame.from_ndarray` and :meth:`VideoFrame.to_ndarray` (:issue:`583`).
- Add support for palette formats in :meth:`VideoFrame.from_ndarray` and :meth:`VideoFrame.to_ndarray` (:issue:`601`).
- Fix Python 3.8 deprecation warning related to abstract base classes (:issue:`616`).
- Remove ICC profiles from logos (:issue:`622`).

Fixes:

- Avoid infinite timeout in :func:`av.open` (:issue:`589`).

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Fixes:

- Removed deprecated ``AV_FRAME_DATA_QP_TABLE_*`` enums. (:issue:`607`)