Terabyte时代的Netflix云包装
By Xiaomei Liu, Rosanna Lee, Cyril Concolato
Introduction
简介
Behind the scenes of the beloved Netflix streaming service and content, there are many technology innovations in media processing. Packaging has always been an important step in media processing. After content ingestion, inspection and encoding, the packaging step encapsulates encoded video and audio in codec agnostic container formats and provides features such as audio video synchronization, random access and DRM protection. Our previous tech blog Packaging award-winning shows with award-winning technology detailed our packaging technology deployed on the streaming side.
在人们喜爱的Netflix流媒体服务和内容的幕后，有许多媒体处理方面的技术创新。包装一直是媒体处理的一个重要步骤。在内容摄取、检查和编码之后，包装步骤将编码后的视频和音频封装成与编解码器无关的容器格式，并提供音频视频同步、随机访问和DRM保护等功能。我们以前的技术博客用获奖的技术包装获奖的节目，详细介绍了我们部署在流媒体方面的包装技术。
As Netflix becomes a producer of award winning content, the studio and content creation needs are also pushing the envelope of technology advancements. As an example, cloud-based post-production editing and collaboration pipelines demand a complex set of functionalities, including the generation and hosting of high quality proxy content. Supporting those workflows poses new challenges to our packaging service.
随着Netflix成为获奖内容的制作者，工作室和内容创作的需求也在推动技术的进步。例如，基于云的后期制作编辑和协作管道需要一套复杂的功能，包括生成和托管高质量的代理内容。支持这些工作流程给我们的包装服务带来了新的挑战。
The Terabyte Era
太字节时代
Apple ProRes encoded video and PCM audio with Quicktime container are one of the most popular formats in professional post-production editing. The ProRes codec family provides great editing performance and image quality. ProRes 422 HQ offers visually lossless preservation of the highest quality professional HD video and is a great video format choice for high quality editing proxy.
带有Quicktime容器的Apple ProRes编码视频和PCM音频是专业后期制作编辑中最受欢迎的格式之一。ProRes编解码器系列提供出色的编辑性能和图像质量。ProRes 422 HQ为最高质量的专业高清视频提供了视觉上的无损保存，是高质量编辑代理的最佳视频格式选择。
As described by the white paper Apple ProRes (link), the target data rate of the Apple ProRes HQ for 1920x1080 at 29.97 is 220 Mbps. With the wid...