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* Fixed some ffmpeg deprecation warnings in decoder

* Fixed clang error
Co-authored-by: Vasilis Vryniotis <datumbox@users.noreply.github.com>

* add additional workflow trigger

* [skip ci] fix name of script for PR label processing (#4013)

* trigger CI

* fix workflow in case commit has no associated PR

* [skip CI] test PR for label-checking workflow (#4015)

* [skip CI] fix PR labels processing logic (#4016)

* [skip CI] try fix trigger for unlabeled PR pings (#4017)

* [skip CI] remove quotes around users ping (#4018)

* [skip CI] cleanup PR labeling workflow (#4019)

* [skip CI] fix ping message for unlabeled PRs (#4020)

* cleanup

* test label extraction

* debug

* debug

* ping maintainers in case a PR was not properly labeled

* flake8

* add required labels

* Fixed comparison warnings in audio_stream and video_stream

* Fixed clang error

This reverts commit f6b6b510.

* fix

* add docs for VisionDataset

* add getitem

* add deprecated note to transform

* Update torchvision/datasets/vision.py
Co-authored-by: Philip Meier <github.pmeier@posteo.de>

* fix docs

* Update torchvision/datasets/vision.py

* flake8
Co-authored-by: Nicolas Hug <nicolashug@fb.com>
Co-authored-by: Philip Meier <github.pmeier@posteo.de>
Co-authored-by: Vasilis Vryniotis <datumbox@users.noreply.github.com>

Co-authored-by: Vasilis Vryniotis <datumbox@users.noreply.github.com>

* Fixed read_image bug

* Removed unused import

* Skip tests if cv2 unavailable

* Removed cv2 dependency