40% bandwidth cost savings! JD Cloud Video Cloud officially supports AV1 encoding

Following web dramas, watching blockbuster movies, "buying and buying" in live broadcast rooms, and video conferencing, video applications have been deeply integrated with people's work and life. According to statistics, the time spent by users in the online video field has exceeded that in the social field, and the proportion of video traffic on the Internet in the 5G era will increase to 85% to 90%.

With the vigorous development of video applications, the amount of video data carried by the network also ushered in explosive growth. In the face of the continuous improvement of users' requirements for video quality, how to achieve clearer and lower-cost video signal transmission in a network environment with limited bandwidth has always attracted the attention of video companies.

Cloud AV1 Video Encoding Service: Effectively save 30% bit rate

Relying on deep cultivation and accumulation in the field of video coding, JD Cloud Video Cloud officially launched the cloud-based AV1 video coding service—AV1+Jingxiang Super Clear Transcoding Service (AV1 for short). In terms of coding efficiency, AV1 effectively saves the bit rate by 30%, becoming One of the few domestic cloud vendors that supports live and on-demand AV1 video processing services.

AV1 is a new generation of open source video encoding format. It is an open source and royalty-free video encoding format developed by AOM (Alliance for Open Media). It is a new generation of leading copyright-free encoding standards.

Compared with the current mainstream H.264 and H.265 encoding formats, in addition to the open and royalty-free advantages of AV1, AV1 also has unique advantages in encoding performance. It has a higher compression ratio and can be used without degrading video quality. It saves a lot of data bandwidth-this is also a key factor in moving towards higher frame rate, 8K resolution, and HDR standards.

Quality comparison of mainstream coding standards

AV1 saves bandwidth costs 30%-40%

AV1 allows users to enjoy the same picture quality experience at low bitrates as at high bitrates. Through Jingxiang’s ultra-clear transcoding technology, live and on-demand services can save an average of over 30%-40% in the same picture quality compared to open source software. % Of the bandwidth cost, under the same bandwidth conditions, provide a more high-definition and high-quality video quality experience.

The AV1 live video service mainly supports RTMP, HLS/DASH, HTTP-FLV and other protocols. Based on the above protocols, it supports AV1 encoding format transmission, so that higher-quality video content can be transmitted with less bandwidth. With the same frame rate), you can save about 20% of the traffic.

The FLV standard specification does not support HEVC and AV1. The open source FFmpeg does not define the HEVC of FLV and the CodecID of AV1. At present, the relevant domestic communities have supported the encapsulation/de-encapsulation of the FLV patch of HEVC. The domestic live CDN manufacturers basically support the encapsulation and de-encapsulation of HEVC. JD Cloud Video Cloud has made a series of optimizations for FLV/HLS support AV1.

01 The basic flow of push-pull flow:

02 FLVAV1 extended description:
FLV added the CodecID of AV1 to 0xD, and added the FLVAV1 sequence head obu definition.

03 HLSAV1 extended description:
TS newly added AV1 Stream_type to 0xB2, and custom storage format.

04 AV1 stream structure:
AV1 bit stream currently supports two formats: Low overhead bit stream format (low overhead bitstream format), Length delimited bit stream format (length delimited bit stream format). The low overhead bitstream format obu is supported by default. The length delimited bit stream format will cause some waste. The low overhead format is recommended.

In terms of video-on-demand, AV1 has richer coding tools, which greatly improves coding efficiency. FFmpeg4.1.x and above support encapsulation/decapsulation for the AV1 standard container format MKV/MP4. At the video processing level, JD Cloud Video on Demand has supported AV1-related transcoding and other media processing.

H.264 encoding and AV1 encoding effect comparison chart

At present, the AV1 encoding service has been officially launched on JD Cloud, and users can apply for it through the entrance of the "Video Service" product page of JD Cloud official website:

Video on demand: Video on demand

As a leading video cloud service provider in China, JD Cloud's video cloud products cover live video, video on demand, real-time audio and video platforms, full-end SDKs, etc., opening up the entire process of video acquisition, editing, broadcasting, storage, management, review, and distribution. Based on technological breakthroughs in video encoding, algorithm optimization, audio analysis and processing, real-time audio and video, etc., the product has relatively leading technology in functions such as Jingxiang ultra-clear transcoding, comfortable audio, real-time audio and video communication, and ultra-low latency live broadcast. At the same time, it can provide customers with a scene-based video end-to-end overall solution.

JD Cloud Video Cloud Product Technology Layout

For example, at the video processing level, JD Cloud has realized the high quality and high transmission of 4K ultra-high-definition video from the collection to the live broadcast center. The ultra-low-latency live broadcast service has been applied in large-scale live broadcasts on JD 618 and 11.11 global shopping festivals, achieving end-to-end low-latency transmission within seconds, and performance indicators such as network jitter, second opening, and stall error rate. Both have been greatly optimized.

JD Cloud has always been committed to becoming an infrastructure provider for high-quality video applications, providing video companies with the most stable, safe, convenient and efficient services. In the future, JD Cloud will be based on technological innovation and use video cloud technology to promote the prosperous development and business innovation of hundreds of industries.