Add Push to Hub functionnality to Model and Pipeline

[kamilakesbi]

Hi @hbredin,

I've started working on adding a push_to_hub method to both Model and Pipeline classes. It will hopefully help users push their custom pyannote speaker-segmentation and speaker-embedding models to the Hugging Face Hub, and use them within custom speaker-diarization pipelines.

In this PR, I've added:

1. A push_to_hub method to the base Model class:

The method is compatible with both the pyannote PyanNet segmentation model and WeSpeakerResNet34speaker embedding model. It will:

1. Save the state dict in a pytorch_model.bin file.

2. Write a config.yaml file similar to the one of pyannote/segmentation-3.0 or pyannote/wespeaker-voxceleb-resnet34-LM.

3. Write a minimal Readme file (which we can work on together), and add appropriate tags and licence.

I've tested the method using the following scripts:

• Segmentation Model:

from diarizers import SegmentationModel
from pyannote.audio import Model

segmentation_model = SegmentationModel().from_pretrained("diarizers-community/speaker-segmentation-fine-tuned-callhome-jpn")
segmentation_model = segmentation_model.to_pyannote_model()
segmentation_model.push_to_hub('kamilakesbi/speaker-segmentation-test')

Here is the result :)

Note: I've used the diarizers library here to first load a fine-tuned speaker segmentation model from the Hugging Face Hub, convert it to a pyannote format, and push it to the Hub.

• Speaker Embedding Model:

from pyannote.audio import Model

speaker_embedding_model = Model.from_pretrained('pyannote/wespeaker-voxceleb-resnet34-LM')
speaker_embedding_model.push_to_hub('kamilakesbi/speaker-embedding-test')

Here is the result :)

2. A push_to_hub method to the base Pipeline class:

• Here, it will generate the config file associated to the pipeline, modify the embedding model and segmentation model by using specified ones from the Hub, and push the updated config file to the hub.
• I added the possibility to push the model checkpoints associated with the pipeline or just the pipeline config file with pointers to the model's hub repositories.
• It will also push a minimal readme with tags and licence (again, we can work on it to customize the output).

The method can be used like this:

from pyannote.audio import Pipeline

pipeline = Pipeline.from_pretrained('pyannote/speaker-diarization-3.1')
pipeline.embedding = 'kamilakesbi/speaker-segmentation-test'
pipeline.segmentation = 'kamilakesbi/speaker-segmentation-test'
pipeline.push_to_hub('kamilakesbi/spd_pipeline_test')

We can also push the model's checkpoints using:

pipeline.push_to_hub('kamilakesbi/spd_pipeline_test', save_checkpoints=True)

Note that this is still a work in progress :) I can make changes to the code and adapt it to pyannote's needs!

Hope that this PR will be useful to pyannote.

[sanchit-gandhi]

General functionality looks good! Left some design thoughts on how we can improve ease-of-use (e.g. saving the embedding/segmentation models when we push the pipeline)

[sanchit-gandhi]

As discussed offline: an elegant solution would be to save both the embedding and segmentation models to subfloders in the repo (embedding and segmentation respectively), and then load the weights from these subfolders when we call .from_pretrained

Your repo structure for kamilakesbi/spd_pipeline_test could look something like the following:

├── config.yaml                  <- Top-level pipeline config
├── embedding                    <- Subfolder for the embedding model
|   ├── config.yaml             
|   ├── pytorch_model.bin
├── segmentation                 <- Subfolder for the segmentation model
|   ├── config.yaml             
|   ├── pytorch_model.bin

And your top-level yaml file could have an extra entry:

    embedding: kamilakesbi/spd_pipeline_test
    embedding_subfolder: embedding
    ...
    segmentation: kamilakesbi/spd_pipeline_test
    segmentation_subfolder: segmentation

Note that this would require updating .from_pretrained to handle this extra subfolder logic

[kamilakesbi]

I handled this differently:

• If we want to save the checkpoints, we add a save_checkpoints=True parameter to pipeline.push_to_hub. We would then get a repo structure like the one you proposed @sanchit-gandhi, but the top yaml file would look like this:

checkpoints: True
params: 
- embedding: 'kamilakesbi/speaker-embedding-test'
- embedding: 'kamilakesbi/speaker-segmentation-test'

• If we don't want to store checkpoints on the hub, then we need pointers to the segmentation and embedding models on the hub. In this case the config file would look like this:

checkpoints: False
params: 
+ embedding: 'kamilakesbi/speaker-embedding-test'
+ embedding: 'kamilakesbi/speaker-segmentation-test'

[sanchit-gandhi]

As discussed offline, saving all sub-models means the model repo on the Hub is fully portable -> users can clone the repository and have all sub-models available to them locally

This is the design that was adopted for diffusers pipelines and has worked very well

Thus, we'll assume that any new checkpoints being pushed will follow this new repo structure, with an exception for current pipelines on the Hub that leverage components from multiple repositories

[sanchit-gandhi]

Looks great! Just a few suggestions regarding the save structure. Can we add relevant tests as well? (both for the model and the pipeline)

[sanchit-gandhi]

Is there not a model attribute or config param we can use to get this in a more robust way?

[kamilakesbi]

Not that I'm aware of... but it would be great!

[sanchit-gandhi]

As discussed offline, saving all sub-models means the model repo on the Hub is fully portable -> users can clone the repository and have all sub-models available to them locally

This is the design that was adopted for diffusers pipelines and has worked very well

Thus, we'll assume that any new checkpoints being pushed will follow this new repo structure, with an exception for current pipelines on the Hub that leverage components from multiple repositories

[kamilakesbi]

Hi @hbredin,

It would be nice if you had time to do a review on this PR so that we can iterate on it :)

Thank you!

[hbredin]

Apologies, I will eventually have a look it but I really don't have the bandwidth right now.