Luc Trudeau
Independent Researcher & Consultant (Video Compression) at inRsi
Saint-Bruno, Quebec, Canada
Summary
👤
Senior🎓
Top SchoolLuc Trudeau is an independent researcher and consultant with 11 years of deep expertise in video compression, co-authoring AV1 and co-designing the dav1d decoder. He specializes in encoder and decoder optimization (AV1, VP9) and has driven measurable bitrate–distortion and speed improvements for projects like Eve-AV1/Eve-VP9 at Two Orioles. Luc combines low-level SIMD/NEON/VSX performance engineering with high-level R&D: from algorithm exploration and learned compression prototypes to production-ready implementations and reproducible evaluation benches. An active open-source contributor, he has optimized libvpx for PowerPC VSX and added native Rust prediction modes to rav1e, reflecting both cross-language skill and performance-first pragmatism. He also mentors and teaches, translating cutting-edge research into practical workshops and code reviews that raise team standards. Based in Montreal with a PhD-focused background in applied video processing, he brings a rare mix of academic rigor and hands-on systems engineering to streaming and codec challenges.
11 years of coding experience
14 years of employment as a software developer
Doctor of Philosophy (Ph.D.) Applied Research in Video Processing, Doctor of Philosophy (Ph.D.) Applied Research in Video Processing at École de technologie supérieure
Stackoverflow
76reputation
8kreached
1answer
0questions
Github Skills (28)
powerpc10
computer-architecture10
architecture10
encoder10
c1110
c1710
av1-codec10
performance-optimization10
video-encoder10
rust10
architectures10
data-structure9
algorithm9
algorithms9
data-structures9
Programming languages (10)
Github contributions (5)
xiph/rav1e
Feb 2018 - May 2018
The fastest and safest AV1 encoder.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:19 commits, 11 PRs, 9 comments in 2 months
Contributions summary:Luc's contributions primarily involve implementing and refining prediction modes within the AV1 encoder. They refactored and moved prediction functions into test namespaces, indicating a focus on internal code organization and testing. The user added native Rust implementations for prediction algorithms (H_PRED and V_PRED), improving the encoder's functionality. Furthermore, they introduced RDO over prediction modes and optimized V_PRED using `clone_from_slice`, revealing an understanding of performance optimization.
av1-encoderencoderfastestav1
webmproject/libvpx
May 2018 - Jun 2018
Mirror only. Please do not send pull requests.
Role in this project:Back-end Developer / Performance Engineer
Back-end Developer / Performance EngineerContributions:22 commits in 1 month
Contributions summary:Luc primarily focused on optimizing the VP9 video codec within the libvpx repository, specifically targeting PowerPC (ppc) VSX architecture. They implemented and optimized a VSX version of the vpx_quantize_b function for low bit depth, leading to significant performance improvements. Furthermore, they developed VSX versions of other functions like vpx_mbpost_proc_down and vpx_quantize_fp, and enhanced the processing of the fdct32x32_rd function. Their contributions demonstrate a focus on low-level optimization for improved encoding speed.
pull-requests
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