strukturag/libde265

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1910 stars · 496 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

libde265 is an open source implementation of the H.265 (HEVC) video codec written from scratch in C++ with a plain C API for easy integration. It supports WPP and tile-based multithreading, SSE optimizations, and includes example programs dec265 and sherlock265.

Use cases

• decode h.265/hevc video streams in my application
• integrate an HEVC decoder into a media player via a C API
• play raw h.265 bitstream files
• visually inspect h.265 bitstream structures like CU trees and intra prediction modes
• decode 4K HEVC video with multithreaded performance
• add HEVC decoding to a GStreamer pipeline

When to choose

• you need an open-source HEVC decoder with a simple C API
• you need high-performance multithreaded decoding of Main profile streams
• you want to embed HEVC decoding in C/C++ software without heavy dependencies
• you need to debug or visualize h.265 bitstream internals

When to avoid

• you need HEVC encoding rather than decoding
• you need a full-featured video player or transcoding framework
• you need profiles or features beyond the Main profile
• you prefer a hardware-accelerated decoder over a software implementation

Facets

library · maturity stable

video-processing image-processing media developer-tools windows cross-platform cpp c h265 hevc video-codec decoder multithreading sse-optimizations c-api video linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="strukturag/libde265")