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obsproject / obs-studio

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Code

How obsproject/obs-studio is laid out, and where to start for common changes.

There is no import map for this report yet.

Where to start reading

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Find files for a task

AI

Add a New Capture Source Plugin

  • Create a new subdirectory under plugins/ with plugin name (e.g., plugins/my-capture/)

Add a New UI Dialog or Settings Panel

  • Register the new dialog in frontend/CMakeLists.txt by adding source files to the target_sources() block

Add Support for a New Streaming Service

  • Update frontend streaming settings UI to include new service selection in frontend/settings/OBSBasicSettings.cpp

Add a New Video Effect Filter

  • Create a new .effect shader file in libobs/data/ or define filter parameters
  • Register the filter in plugins/obs-filters/CMakeLists.txt and obs_module_load()

Add or update tests

Change build or automation

RepoPilot lists up to 500 files, so a file missing here may still exist.

  • No public API or start-up file could be picked out from the file names.

Code quality and hotspots

Largest source files

  • Branch points243 per file on average
  • Code issues0 errors, 23 warnings
  • Largest file6,035 lines
  • Hotspot load3 high-risk files

Static checks on the 15 largest source files.

Tests, CI and tooling

  • CIGitHub Actions9 workflows
  • Tests182 test files0.12 test files per source file (file count, not coverage)
  • Dependency updatesNo config detected

Test folders: deps/w32-pthreads/tests

Hotspots

Files that change often and branch heavily, highest first. Branch points count if, loop, case, catch, ternary, && and || in the file.