HDR Vivid, a Chinese HDR standard introduced by the CUVA alliance, expands dynamic range, color gamut, and bit depth with dynamic metadata, tone mapping, and saturation control, and is compared against HDR10, HDR10+, Dolby Vision, and HLG while detailing its technical advantages and current industry adoption.
AV1, an open royalty‑free video codec finalized in 2018, delivers roughly 20 % lower bitrate than H.265 and is supported by major players and hardware, while Bilibili’s self‑developed BILIAV1 encoder, built from scratch, beats SVT‑AV1 by 15‑20 % bitrate at equal speed through advanced TRACE debugging, parallel processing and optimized algorithms, with future work targeting P2P and live‑streaming applications.
iQIYI’s “Frame Qiyi Cinema” upgrades mobile streaming to cinema‑grade 4K + HDR + high frame rate + spatial audio, detailing the technology’s components, hardware collaborations, certification process, content production standards, and its role in driving the industry’s ultra‑HD evolution.
This article reviews the evolution of international video standards, explains the technical goals and performance gains of the sixth‑generation VVC codec, details Alibaba DAMO Academy’s contributions, and explores future trends such as deep‑learning‑enhanced video compression.
AV1, the royalty‑free video codec created by the Alliance for Open Media and supported by Tencent’s Multimedia Lab, combines advanced block partitioning, intra‑ and inter‑prediction, versatile transforms, sophisticated entropy coding, and loop‑filtering to cut bitrates by roughly 20% for streaming, cloud transcoding, 8K, VR, and medical imaging, while paving the way toward future AV2 and VVC standards.
Youku’s new 6DoF video approach replaces low‑resolution, bandwidth‑heavy VR by capturing multi‑camera footage, reconstructing full‑depth scenes in the cloud, and streaming standard‑compliant streams that let viewers freely translate and rotate within the content, delivering higher visual quality, AR integration, and new business opportunities.
