[omni modality] support composite processor config #38142
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What does this PR do?
Experimental PR for now.
The issue is that we have always been saving audio and image processors under the same config name (
preprocessor_config.json
) which was totally fine until the recent release of omni models. Now if we try to save the omni-model processor, only the last attribute's config is saved and it overwrite all previous configs with the same namingSo inspired by how Qwen-Omni team merged two configs into one big
preprocessor_config.json
, we can save all modality configs as part of the processor similar to what we have for composite model configs.