[Cherry-pick for 0.28] Fix gif decoder bug (#9520) (#9521)

[Cherry-pick for 0.28] Fix gif decoder bug (#9520) (#9521)

[Cherry-pick for 0.28] Fix gif decoder bug (#9520) (#9521)

Release 0.28 (#9511)

Release 0.28 (#9511)

[release-only] bump version to 0.27.1

[release-only] bump version to 0.27.1

[release-only] bump version to 0.27.1

[release-only] bump version to 0.27.1

[Release 0.27] Cherry-pick of 'Remove old pyav backend, rely on TC in…

…stead (#9481)