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marcos ashton

PROFILE

Marcos Ashton

Worked on FFmpeg/FFmpeg and ossrs/ffmpeg-webrtc, focusing on expanding test coverage, improving regression safety, and enhancing reliability for video and audio processing features. Delivered new FATE-based unit tests for AV1 and H.274 film grain parameters, Stereo3D handling, and buffer management, using C programming and low-level memory management to address edge cases and out-of-memory scenarios. Improved test coverage for libavutil, codecs, and filters, including HDR metadata and timestamp utilities, while fixing stability issues such as out-of-bounds risks and implicit conversion warnings. These efforts strengthened production stability and enabled safer, more reliable codec and display feature development across platforms.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

17Total
Bugs
1
Commits
17
Features
4
Lines of code
3,175
Activity Months3

Your Network

377 people

Work History

April 2026

4 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for ossrs/ffmpeg-webrtc. Focused on expanding test coverage and reliability for libavutil and FATE, delivering comprehensive testing enhancements across buffer management, HDR dynamic vivid metadata, tdrdi display information, and timestamp handling. Implemented end-to-end FATE tests that exercise memory edge cases and OOM scenarios, achieving significant coverage gains and early regression detection. These efforts reduce memory-related defects, improve stability in production builds, and establish a robust foundation for HDR and display-related features.

March 2026

12 Commits • 2 Features

Mar 1, 2026

March 2026: FFmpeg/FFmpeg delivered meaningful stability improvements, expansive test coverage, and targeted safety fixes across core utilities, codecs, and filters. The month focused on reducing risk in Stereo3D handling, expanding FATE-driven validation, and tightening edge-case parsing to improve reliability in production builds.

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 — FFmpeg/FFmpeg: Key feature delivery and test-coverage improvements for film grain parameters in AV1 and H.274. No major bugs fixed this month. Overall impact: significantly improved regression safety and test quality for codec parameter handling, enabling safer changes and faster release readiness. Technologies demonstrated: FATE-based unit testing, libavutil test scaffolding, and AV1/H.274 film grain parameter modeling.

Activity

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Quality Metrics

Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C

Technical Skills

C programmingaudio processingdebuggingencryption algorithmsfilter developmentlow-level programmingmemory managementperformance optimizationsoftware developmentsoftware testingtestingunit testingvideo encodingvideo processing

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

FFmpeg/FFmpeg

Feb 2026 Mar 2026
2 Months active

Languages Used

C

Technical Skills

C programmingunit testingvideo processingaudio processingdebuggingencryption algorithms

ossrs/ffmpeg-webrtc

Apr 2026 Apr 2026
1 Month active

Languages Used

C

Technical Skills

C programmingmemory managementsoftware developmentsoftware testingtestingunit testing