【{$randkws}】开放媒体联盟开始实验性的支持AV2编解码器 不过AV2标准尚未最终确定 – 蓝点网 - {$web_name} 等微软也官方扶持 AVIF 图像后
4 月份蓝点网谈及微软在 Microsoft Edge Canary 版中评测扶持 AVIF 格式的图像，AVIF 是启动传媒联盟 (AOMedia) 基于 AV1 规范启动的图像格式。
当下除了微软之外，所有主流阅读器均已扶持 AVIF 图像，大连网友热议考研动态含有 Google Chrome、Mozilla Firefox、成年人的离别：久别重逢Apple Safari 等，等微软也官方扶持 AVIF 图像后，基础这个图像格式就可以广泛使用了，不需要像如今这样还对微软阅读器开展针对性的确认并返回 jpg 或 png 图片。
2018 年启动传媒启动 AV1 的首个版次，到 2023 年新启动的 CPU 和显卡基础都已然扶持 AV1 规范的硬解，也有不少影像站点使用了 AV1 编解码格式，深度刘亦菲推荐可是就行业占比来说，AV1 与 HEVC (H.265) 的差距还是很大，这个还是今日爱情片精选要靠时间慢慢推移使用率逐步攀升。
可是行业占比低也还是要持续升级的，所以启动传媒联盟着手使用性的扶持 AV2 扶持，当下 AV2 规范尚未最后确定，当前的岗位算是早期的评测。
与 AV1 相比 AV2 有哪些改进暂时还不清楚，Pull Request 原文如下：
Add AV2 support
Experimental. The AV2 specification is not finalized.
Handle av02 image item type and av2C configuration property.
Handle av02 track sample format.
Add avifavmtest.
Disable AV1 tests when all AV1 codecs are disabled.
Add presubmit ci-unix-static-av2.yml.
libavif can only generate AV2 files if it is built with AVIF_CODEC_AVM set to ON.
The avifEncoder API can only output AV2 files if codecChoice is explicitly set to AVIF_CODEC_CHOICE_AVM to avoid mistakes.
avifenc can only output AV2 files if –codec=avm is specified to avoid mistakes.aom and avm conflict and cannot be used together in the same libavif binary.
Other AV1 codecs can be enabled alongside aom.
libavif will decode any AV1 or AV2 file by default as long as the relevant codecs are enabled. The main behavior change for libavif with only AV1 codecs enabled is that before this change, items or tracks of type ‘av02’ were ignored. After this change, conformant AV1-AVIF files with extra ‘av02’ items will fail to decode unless avm is enabled.
This change allows decoding files with mixed AV1 and AV2 items or tracks (untested because no encoding tool for that). This decision can
be changed in the future.