Checklist

• 1. If the issue you raised is not a feature but a question, please raise a discussion at https://github.com/sgl-project/sglang/discussions/new/choose Otherwise, it will be closed.
• 2. Please use English, otherwise it will be closed.

Motivation

• Unmaintained Dependency: decord's last commit was 3 years ago: (dmlc/decord@d2e56), it seems to be unmaintained
• Obsolete FFmpeg Dependency: Installation docs still reference FFmpeg 4 (released 2018), while modern systems use FFmpeg 7
• Memory Management Risks: Decord's issue tracker mentioned that there are crash on large videos and memory leaks(Memory leak on Linux dmlc/decord#323 and Segmentation Fault When Using Decord and TorchVision Together dmlc/decord#329)
• Platform Fragility: Complex installation process with platform-specific PPAs creates maintenance burden

Adopt another libraries like PyAV(https://pypi.org/project/pyav/) and video_reader-rs(https://github.com/gcanat/video_reader-rs) offers active maintenance. Meanwhile video_reader-rs is performing equally or better than decord, while using less memory.

Related resources

No response