libsdl-org/aom
Mar 2026 – Apr 2026
2 Months active
Languages Used
C
Technical Skills
C programmingalgorithm optimizationperformance optimizationvideo encoding
Ranjit Kumar Tulabandu
PROFILE
Ranjit Kumar Tulabandu
Contributed to the libsdl-org/aom repository by developing and optimizing video encoding features in C, with a focus on algorithm and performance improvements. Delivered RD-cost based pruning for compound mode evaluations and inter transform splits, reducing unnecessary computations and increasing encoding throughput while maintaining output quality. Addressed multi-threaded consistency by correcting intra mode rate calculations, ensuring accurate encoding across threads. In a subsequent update, improved screen content decision accuracy by refining palette pixel counting logic after palette mode finalization. Demonstrated expertise in C programming, algorithm optimization, and performance benchmarking, with changes validated through bit-exact builds and measurable performance metrics across resolutions.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
6Total
Bugs
2
Commits
6
Features
2
Lines of code
370
Activity Months2
Your Network
66 peopleSame Organization
@ittiam.com14
Work History
April 2026
1 Commits
Apr 1, 2026April 2026: Focused on correctness and stability in the aom encoding path. No new user-facing features were released this month; main work was a critical bug fix with measurable impact on screen content decision accuracy. Change ensures palette_pixels is counted only after palette mode finalization in encode_superblock, improving decision accuracy with marginal performance impact and targeted applicability to select content.
1 Commits
Apr 1, 2026April 2026: Focused on correctness and stability in the aom encoding path. No new user-facing features were released this month; main work was a critical bug fix with measurable impact on screen content decision accuracy. Change ensures palette_pixels is counted only after palette mode finalization in encode_superblock, improving decision accuracy with marginal performance impact and targeted applicability to select content.
April 2026
March 2026
5 Commits • 2 Features
Mar 1, 2026March 2026 performance-focused update for libsdl-org/aom. Delivered key feature work to accelerate encoding pipelines while preserving output quality, plus a bug fix to ensure consistent rate calculations across multi-threaded encodings. Overall, improvements targeted higher throughputs in real-time and batch encoding scenarios with minimal or no quality loss on target configurations.
March 2026
5 Commits • 2 Features
Mar 1, 2026March 2026 performance-focused update for libsdl-org/aom. Delivered key feature work to accelerate encoding pipelines while preserving output quality, plus a bug fix to ensure consistent rate calculations across multi-threaded encodings. Overall, improvements targeted higher throughputs in real-time and batch encoding scenarios with minimal or no quality loss on target configurations.
Activity
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Quality Metrics
Correctness90.0%
Maintainability80.0%
Architecture80.0%
Performance83.4%
AI Usage30.0%
Skills & Technologies
Programming Languages
C
Technical Skills
C programmingalgorithm optimizationperformance optimizationvideo encoding
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