Clarification on Intra-frame (I-frame) interval in data preprocessing
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Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 35/100
- Issue type
- Documentation
- Clarity
- Needs clarification
- Activity status
- Quiet
- Tech stack
- python
- Domain
- data-engineering, machine-learning
Research direction
Start by reading tools/tools_for_hevc/step3_generate_video_mv_residual_index.py and trace how it handles full frames and frame indices. Check the HEVC encoding/GOP assumptions referenced in the issue; done means documenting whether a fixed I-frame interval exists, whether processing relies on GOP structure, and how that affects training-data alignment.
Written by the indexing model from the issue text.
Description
Hi,
I am currently reviewing the data preprocessing pipeline and had a question regarding tools/tools_for_hevc/step3_generate_video_mv_residual_index.py.
Specifically, I noticed that the script does not explicitly define a fixed interval for sampling full frames (Intra-frames). Could you please clarify the following:
Is there a default interval being used (e.g., every 32 or 64 frames)?
Does the script process the video entirely without full-frame sampling, or does it rely on the GOP structure predefined during the HEVC encoding step?
Understanding this sampling frequency is critical for me to align the training data correctly with the model architecture.
Thanks for your help!
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EvolvingLMMs-Lab/OneVision-Encoder#116 · 1 comment ·
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