OpenAI's video API only supports 4 specific sizes:
- '1280x720' (landscape 16:9)
- '720x1280' (portrait 9:16)
- '1792x1024' (wide landscape)
- '1024x1792' (tall portrait)
Changes:
- Updated size_mapping to use OpenAI's exact supported sizes
- Map user selections to closest supported size
- Added info logging to show size conversions
- Keep original size mapping for non-OpenAI APIs
- Updated documentation with actual supported sizes
This fixes the 'invalid_value' error for the size parameter.
bowtiedbluefin
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