[SANA-Video] Adding 5s pre-trained 480p SANA-Video inference (#12584) * 1. add `SanaVideoTransformer3DModel` in transformer_sana_video.py 2. add `SanaVideoPipeline` in pipeline_sana_video.py 3. add all code we need for import `SanaVideoPipeline` * add a sample about how to use sana-video; * code update; * update hf model path; * update code; * sana-video can run now; * 1. add aspect ratio in sana-video-pipeline; 2. add reshape function in sana-video-processor; 3. fix convert pth to safetensor bugs; * default to use `use_resolution_binning`; * make style; * remove unused code; * Update src/diffusers/models/transformers/transformer_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/models/transformers/transformer_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/models/transformers/transformer_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/pipelines/sana/pipeline_sana_video.py Co-authored-by: YiYi Xu * Update src/diffusers/models/transformers/transformer_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/models/transformers/transformer_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/models/transformers/transformer_sana_video.py * Update src/diffusers/pipelines/sana/pipeline_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/models/transformers/transformer_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/pipelines/sana/pipeline_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * support `dispatch_attention_fn` * 1. add sana-video markdown; 2. fix typos; * add two test case for sana-video (need check) * fix text-encoder in test-sana-video; * Update tests/pipelines/sana/test_sana_video.py * Update tests/pipelines/sana/test_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update tests/pipelines/sana/test_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update tests/pipelines/sana/test_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update tests/pipelines/sana/test_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update tests/pipelines/sana/test_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/pipelines/sana/pipeline_sana_video.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * Update src/diffusers/video_processor.py Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> * make style make quality make fix-copies * toctree yaml update; * add sana-video-transformer3d markdown; * Apply style fixes --------- Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> Co-authored-by: YiYi Xu Co-authored-by: github-actions[bot]

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