NVIDIA Video Codec SDK 13.1 发布：支持 AV1 B 帧与零拷贝转码
原标题：NVIDIA Video Codec SDK 13.1: Zero-Copy Transcode, AV1 B-Frames, and Frame-Accurate Seek
AI 摘要
NVIDIA 发布 Video Codec SDK 13.1，为 AV1 编码新增分层参考模式，支持最多 31 个 B 帧，并整合 UHQ 调优信息与迭代编码。解码端新增 H.264/HEVC 的逐宏块统计信息和帧精确寻址功能，转码支持零拷贝 CUarray 输入输出。这些特性旨在提升视频处理效率和质量，适用于 AI 视频分析和编辑等场景。
正文节选
The demand for high-quality video continues to accelerate across industries, powering everything from immersive streaming experiences to remote collaboration, generative AI media tools, and large-scale content delivery. Behind these experiences is a growing need for video pipelines that are faster, more efficient, and capable of handling increasingly complex formats and workloads. NVIDIA Video Codec SDK helps developers meet that challenge by providing access to GPU-accelerated video encoding an