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Oleksandr Bezdieniezhnykh be4cab4fcb [AZ-178] Implement streaming video detection endpoint

- Added `/detect/video` endpoint for true streaming video detection, allowing inference to start as upload bytes arrive.
- Introduced `run_detect_video_stream` method in the inference module to handle video processing from a file-like object.
- Updated media hashing to include a new function for computing hashes directly from files with minimal I/O.
- Enhanced documentation to reflect changes in video processing and API behavior.

Made-with: Cursor

2026-04-01 03:11:43 +03:00

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Implementation Report — Video Pre-Write Removal

Date: 2026-04-01 Tasks: 1 Batches: 1 Total Complexity: 2 points

Summary

Removed redundant synchronous video pre-writes in the /detect endpoint. Videos are now written to disk exactly once by inference.pyx's background writer thread, concurrently with frame detection.

Tasks Completed

Task	Name	Complexity	Status
AZ-177	remove_redundant_video_prewrite	2	Done

Changes

File	Change
src/main.py	Auth'd path: wrap file write with `if kind == "image"` so videos skip pre-write
src/main.py	Non-auth'd path: remove `open().write()` after `mkstemp` — inference handles the write

Test Results

18/18 tests passed. 4 new tests added:

test_auth_video_storage_path_opened_wb_once
test_non_auth_temp_video_opened_wb_once_and_removed
test_auth_image_still_writes_once_before_detect
test_video_writer_runs_in_separate_thread_from_executor

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