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TorchCodec 0.5

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@Dan-Flores Dan-Flores released this 23 Jul 19:29
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v0.5.0
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TorchCodec 0.5 is out! This version comes with the highly requested feature: Audio Encoding!

Audio Encoding

You can now encode audio samples to a file or to raw bytes!

from torchcodec.encoders import AudioEncoder

encoder = AudioEncoder(samples=samples, sample_rate=sample_rate)

encoder.to_file("samples.mp3")  # encode to a file
encoded_bytes = encoder.to_tensor(format="mp3")  # encode to a tensor of bytes

Learn more in our tutorial.

Parallel video decoding

We added a new tutorial for workflows to enable parallel video decoding using multi-processing and multi-threading. Read more in our tutorial.

Additional features and improvements

  • Added a field to the Stream Metadata struct to contain sample/pixel aspect ratio to support non-square pixels.

  • Made changes to the VideoDecoder to be more resilient to missing metadata, specifically the number of frames in a stream or stream duration. It will use average FPS and other metadata to calculate these fields when they are missing.

Bug fixes

  • A bug fix in VideoDecoder and AudioDecoder when they are instantiated from bytes or a Tensor: they now adopt the data representing the video to ensure the data's lifetime matches that of the decoder.
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