libsdl-org/aom
Jan 2025 – Jun 2025
3 Months active
Languages Used
CC++CMakeCMakeScriptPerl
Technical Skills
Build SystemCPU ArchitectureEmbedded SystemsLow-level OptimizationPerformance EngineeringPerformance Optimization
jerry
PROFILE
Jerry
Jery Tsai developed and integrated RISC-V Vector Extension (RVV) optimizations for the libsdl-org/aom repository, focusing on AV1 video codec performance for embedded RISC-V platforms. Over three months, Jery engineered RVV-aware architecture detection, build system integration, and vectorized 2D convolution paths, leveraging C, CMake, and RISC-V assembly. His work included implementing high-bit-depth convolution and inline memory utilities, enabling higher throughput and energy efficiency for video encoding and decoding. By updating build tooling and introducing RVV-specific source files, Jery established a robust foundation for future vector acceleration, demonstrating depth in low-level optimization and performance engineering for media workloads.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
5Total
Bugs
0
Commits
5
Features
4
Lines of code
6,175
Activity Months3
Your Network
44 people
Work History
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly work summary for libsdl-org/aom: Delivered RVV-based AV1 performance optimizations on RISC-V, enabling higher throughput and energy efficiency on RV64. Implementations centered on new RVV utilities and convolution optimizations, with changes integrated under aom_dsp/riscv.
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly work summary for libsdl-org/aom: Delivered RVV-based AV1 performance optimizations on RISC-V, enabling higher throughput and energy efficiency on RV64. Implementations centered on new RVV utilities and convolution optimizations, with changes integrated under aom_dsp/riscv.
June 2025
May 2025
1 Commits • 1 Features
May 1, 2025Month: 2025-05 — Delivered vectorized optimization work for the AOM library on RISC-V with RVV. Implemented RVV-accelerated 2D convolution paths for video encoding/decoding (convolve_2d, convolve_x, convolve_y, convolve_2d_intrabc), added new RVV implementation C files, and updated build configurations to enable the RVV path. This work targets higher throughput for media workloads on RVV-capable hardware and aligns with broader performance targets for video pipelines.
May 2025
1 Commits • 1 Features
May 1, 2025Month: 2025-05 — Delivered vectorized optimization work for the AOM library on RISC-V with RVV. Implemented RVV-accelerated 2D convolution paths for video encoding/decoding (convolve_2d, convolve_x, convolve_y, convolve_2d_intrabc), added new RVV implementation C files, and updated build configurations to enable the RVV path. This work targets higher throughput for media workloads on RVV-capable hardware and aligns with broader performance targets for video pipelines.
January 2025
2 Commits • 2 Features
Jan 1, 2025January 2025 — LibSDL AOM (libsdl-org/aom): Delivered RVV-ready enhancements for RISC-V, enabling broader hardware support and improved video decoding performance. Key features delivered include RVV architecture detection and CPU-detection integrated into the build system, and RVV-aware CDEF optimizations for video decoding. Build tooling updates (CMake/Perl) were introduced to support RVV optimization paths. Major bugs fixed: none reported this month. Overall impact: expanded platform support for RISC-V RVV-enabled devices and a stronger foundation for future RVV-based acceleration in production workloads. Technologies/skills demonstrated: C, CMake, Perl scripting, architecture and CPU detection, build-system integration, and low-level video optimization.
2 Commits • 2 Features
Jan 1, 2025January 2025 — LibSDL AOM (libsdl-org/aom): Delivered RVV-ready enhancements for RISC-V, enabling broader hardware support and improved video decoding performance. Key features delivered include RVV architecture detection and CPU-detection integrated into the build system, and RVV-aware CDEF optimizations for video decoding. Build tooling updates (CMake/Perl) were introduced to support RVV optimization paths. Major bugs fixed: none reported this month. Overall impact: expanded platform support for RISC-V RVV-enabled devices and a stronger foundation for future RVV-based acceleration in production workloads. Technologies/skills demonstrated: C, CMake, Perl scripting, architecture and CPU detection, build-system integration, and low-level video optimization.
January 2025
Activity
Loading activity data...
Quality Metrics
Correctness98.0%
Maintainability84.0%
Architecture86.0%
Performance96.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++CMakeCMakeScriptPerl
Technical Skills
AV1 CodecAssembly LanguageBuild SystemCCPU ArchitectureEmbedded SystemsImage ProcessingLow-level OptimizationPerformance EngineeringPerformance OptimizationRISC-VRISC-V AssemblyVector Extensions (RVV)Vector InstructionsVectorization
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline