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
Over a three-month period, contributed advanced performance optimizations to the libsdl-org/aom repository, focusing on RISC-V platforms with RVV vector extensions. Developed and integrated RVV-aware features such as architecture and CPU detection, RVV-accelerated CDEF, and high-bit-depth convolution paths to enhance AV1 video codec throughput. Leveraged C, Assembly, and CMake to implement new vectorized utilities and update build systems for seamless RVV support. The work enabled broader hardware compatibility and improved video encoding and decoding efficiency on RV64 devices, laying a foundation for future vector-based optimizations and benchmarking on embedded RISC-V systems without introducing new bugs.
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
68 peopleWork 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
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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
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