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

[NicolasHug]

CP of #9406 which I still haven't been able to land in main yet.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/vision/9481

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❗ 1 Active SEVs

There are 1 currently active SEVs. If your PR is affected, please view them below:

• [CI[B200] Smoke test encounters CUDA Unknown error for dgxb200-03 and dgxb200-04

❌ 6 New Failures, 5 Pending, 16 Unrelated Failures

As of commit eef1fcb with merge base 8ad7115 ():

NEW FAILURES - The following jobs have failed:

• Build Aarch64 Linux Wheels / pytorch/vision / build-wheel-py3_10-cuda-aarch6412_6-aarch64 (gh)
  Process completed with exit code 1.
• Build Aarch64 Linux Wheels / pytorch/vision / build-wheel-py3_10-cuda-aarch6413_0-aarch64 (gh)
  Process completed with exit code 1.
• Build Aarch64 Linux Wheels / pytorch/vision / build-wheel-py3_10-cuda-aarch6413_2-aarch64 (gh)
  Process completed with exit code 1.
• Build Linux Wheels / pytorch/vision / build-manywheel-py3_10-rocm7_2 (gh)
• Build Linux Wheels / pytorch/vision / upload / upload-manywheel-py3_10-rocm7_2 (gh)
  Unable to download artifact(s): Artifact not found for name: pytorch_vision__3.10_rocm7.2_x86_64
• Build Windows Wheels / pytorch/vision / build-wheel-py3_10-xpu (gh)

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• Build Aarch64 Linux Wheels / pytorch/vision / upload / upload-wheel-py3_10-cuda-aarch6412_6-aarch64 (gh) (trunk failure)
• Build Aarch64 Linux Wheels / pytorch/vision / upload / upload-wheel-py3_10-cuda-aarch6413_0-aarch64 (gh) (trunk failure)
  Unable to download artifact(s): Artifact not found for name: pytorch_vision__3.10_cu130_aarch64
• Build Aarch64 Linux Wheels / pytorch/vision / upload / upload-wheel-py3_10-cuda-aarch6413_2-aarch64 (gh) (trunk failure)
  Unable to download artifact(s): Artifact not found for name: pytorch_vision__3.10_cu132_aarch64
• Build Linux Wheels / pytorch/vision / build-manywheel-py3_10-cuda12_6 (gh) (trunk failure)
  Process completed with exit code 1.
• Build Linux Wheels / pytorch/vision / build-manywheel-py3_10-cuda13_0 (gh) (trunk failure)
  Process completed with exit code 1.
• Build Linux Wheels / pytorch/vision / build-manywheel-py3_10-cuda13_2 (gh) (trunk failure)
  Process completed with exit code 1.
• Build Linux Wheels / pytorch/vision / build-manywheel-py3_10-rocm7_1 (gh) (trunk failure)
  Process completed with exit code 1.
• Build Linux Wheels / pytorch/vision / build-manywheel-py3_10-xpu (gh) (trunk failure)
  Process completed with exit code 1.
• Build Linux Wheels / pytorch/vision / upload / upload-manywheel-py3_10-cuda12_6 (gh) (trunk failure)
  Unable to download artifact(s): Artifact not found for name: pytorch_vision__3.10_cu126_x86_64
• Build Linux Wheels / pytorch/vision / upload / upload-manywheel-py3_10-cuda13_0 (gh) (trunk failure)
  Unable to download artifact(s): Artifact not found for name: pytorch_vision__3.10_cu130_x86_64
• Build Linux Wheels / pytorch/vision / upload / upload-manywheel-py3_10-cuda13_2 (gh) (trunk failure)
  Unable to download artifact(s): Artifact not found for name: pytorch_vision__3.10_cu132_x86_64
• Build Linux Wheels / pytorch/vision / upload / upload-manywheel-py3_10-rocm7_1 (gh) (trunk failure)
  Unable to download artifact(s): Artifact not found for name: pytorch_vision__3.10_rocm7.1_x86_64
• Build Linux Wheels / pytorch/vision / upload / upload-manywheel-py3_10-xpu (gh) (trunk failure)
• Build Windows Wheels / pytorch/vision / build-wheel-py3_10-cuda13_2 (gh) (trunk failure)
  Process completed with exit code 1.
• Tests / unittests-macos (3.10, macos-m1-stable) / macos-job (gh) (trunk failure)
  test/test_transforms_v2.py::TestErase::test_transform_image_correctness[4-cpu-dtype1-value-random]
• Tests / unittests-macos (3.14, macos-m1-stable) / macos-job (gh) (trunk failure)
  test/test_transforms_v2.py::TestErase::test_transform_image_correctness[4-cpu-dtype1-value-random]

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