Home 샤나인코더 Discussion
Simplified Chinese
2018.11.15 04:03

FFmpeg 4.1 正式发布，支持 AV1 编码 MP4，shanaencoder会更新吗？

小樱
조회 수 25669 추천 수 0 댓글 2
?

단축키

Prev이전 문서

Next다음 문서

가 크게 작게 위로 아래로 댓글로 가기 인쇄 첨부
?

단축키

Prev이전 문서

Next다음 문서

가 크게 작게 위로 아래로 댓글로 가기 인쇄 첨부

http://trac.ffmpeg.org/wiki/Encode/AV1

 

微软已经通过Microsoft Store发布了针对Windows 10的全新AV1视频编解码器的支持。
AOMedia Video 1（AV1）是一种开放的、免版税的免费视频编码格式，专为通过互联网进行视频传输而设计。它由开放媒体联盟（AOMedia）开发，旨在成为VP9的继承者，而不依赖任何MPEG专利。
谷歌Chrome浏览器v70上线：新增AV1解码器，也是支持新AV1视频编解码器的第一个浏览器版本。
意思是av1可以用于web播放并且是免费的，不像265拥有4种专利费，，价格极其昂贵
而且，嗯，av1压缩率比265更加大得多，i5 8400软解码1080P AV1占用率基本在8%左右
265比264少了三分之一，av1比265少了一半吧，而且av1编码速度和264差不多，而且完全免费可以用于任何用途
具体压缩率之后要试试，对标是265少一半，实际效果还没试过，速度是看网上数据，不过有些也说比265还要慢的文章，，既然微软发布了，，等会去试试，希望shanaencoder也尽快加入支持，毕竟FFmpeg基本上基于纯命令行，很多人不会用。可以先发行一个测试版本用于test video。

 

youtube 开启av1支持
用更少的数据流量观看更多的视频
AV1 视频编解码器具有高级压缩功能，可让您更流畅地在线播放高清视频并随时随地以更少的数据流量观看更多视频。
由于这是一项新技术，因此采用 AV1 在线播放高清视频需要一台功能强大的计算机，并且目前只有部分视频支持 AV1。 选择采用 AV1 在线播放标清视频时，系统会对画质不超过 480p 的视频采用 AV1，而对更高画质的视频采用 VP9。
https://www.youtube.com/testtube

youtube av1 1080P 30FPS测试视频：

1.png

 

https://www.youtube.com/watch?v=2nXYbGmF3_Q

 

 

Atachment
첨부 '1'
Facebook Twitter Pinterest Kakao
위로 아래로 댓글로 가기 인쇄 첨부
에디터 선택하기
?
Comments '2'
  • ?
    小樱 2018.11.15 04:45

    测试了下，ffmpeg.exe -i mv101.mp4 -c:v libaom-av1 -crf 30 -b:v 0 -strict experimental -cpu-used 8 test.mp4

    i5 8400只能利用1颗CPU核心占用率为16%，480x852分辨率，编码速度为1.7fps

     

    댓글
  • ?
    JKyle 2018.11.15 08:34

    If you'd like to communicate with others, please write in English or Korean.

    Few people here can understand Chinese, including myself.

    댓글
  1. No Image notice by Rina 2021/04/28 by Rina
    Views 45109  Likes 0 Replies 8

    ShanaEncoder Translation 8

  2. No Image notice by Rina 2019/07/24 by Rina
    Views 49549  Likes 1 Replies 7

    This board is for users of the ShanaEncoder international version 7

  3. No Image 21Feb
    by conencted09
    2019/02/21 by conencted09
    in English
    Views 5315  Likes 0 Replies 1

    Select Audio Stream for Multiple Files 1

  4. 15Nov
    by 小樱
    2018/11/15 by 小樱
    in Simplified Chinese
    Views 25669  Likes 0 Replies 2

    FFmpeg 4.1 正式发布，支持 AV1 编码 MP4，shanaencoder会更新吗？ 2

  5. No Image 20Feb
    by bata
    2020/02/20 by bata
    in English
    Views 4568  Likes 0

    import external audio 0

  6. No Image 14Nov
    by SyXaTz
    2019/11/14 by SyXaTz
    in English
    Views 14881  Likes 0

    Can Someone Making Me An Preset, With This Setting? 0

  7. No Image 16Feb
    by thoste
    2022/02/16 by thoste
    in English
    Views 3524  Likes 0

    Auto-adjust height when width is changed - Keep aspect ratio 0

  8. No Image 28Aug
    by Alexander
    2014/08/28 by Alexander
    in English
    Views 8796  Likes 0 Replies 1

    Various AAC options? 1

  9. No Image 03Apr
    by SyXaTz
    2020/04/03 by SyXaTz
    in English
    Views 6098  Likes 0 Replies 5

    480P MKV X265 33MB <-- Found It, Just Need Some Answer Of A Line.. 5

  10. No Image 16Feb
    by thoste
    2022/02/16 by thoste
    in English
    Views 3300  Likes 0

    key frame not in seconds but as usual in frames 0

  11. No Image 29May
    by lfq
    2022/05/29 by lfq
    in Simplified Chinese
    Views 20540  Likes 0 Replies 1

    建议输出文件夹可以按源文件自动创建目录，而不是统一放到一个目录。 1

  12. No Image 25Mar
    by chessset5
    2020/03/25 by chessset5
    in English
    Views 5573  Likes 0 Replies 2

    Cropping 2

  13. No Image 16Feb
    by thoste
    2022/02/16 by thoste
    in English
    Views 3223  Likes 0

    Show only available codecs (Intel Quick Sync not available) 0

  14. No Image 17Jan
    by 小樱
    2016/01/17 by 小樱
    in Simplified Chinese
    Views 21247  Likes 0

    Nominal bit rate 可以做一个设置？一些视频网指定Nominal bit rate ，超过2000进行二压转码处理 0

  15. No Image 23May
    by 小妖
    2020/05/23 by 小妖
    in Simplified Chinese
    Views 25943  Likes 0 Replies 4

    希望提高多线程的支持 4

  16. 09May
    by Leeroy
    2021/05/09 by Leeroy
    in English
    Views 5393  Likes 0 Replies 2

    shanacrop filter issue 2

  17. No Image 26Dec
    by 小樱
    2015/12/26 by 小樱
    in Simplified Chinese
    Views 21648  Likes 0

    如何把多个视频时长合并到一个文件，shana视乎只能做分割？ 0

  18. 28Dec
    by pontuuu
    2023/12/28 by pontuuu
    in English
    Views 1567  Likes 0

    videos not played on tv 0

  19. No Image 27Jan
    by Swish
    2019/01/27 by Swish
    in English
    Views 4293  Likes 0

    Frame bar (Feature request) 0

  20. No Image 06Mar
    by 小樱
    2015/03/06 by 小樱
    in Simplified Chinese
    Views 22091  Likes 0

    如何进行把两个或者多个视频进行合并成一个视频 0

  21. No Image 25Sep
    by 小樱
    2015/09/25 by 小樱
    in Simplified Chinese
    Views 20620  Likes 0 Replies 2

    intel quick sync和nvidia nvenc加速编码有希望推出？毕竟效率比opencl好很多。 2

  22. No Image 14Aug
    by kokoro
    2023/08/14 by kokoro
    in English
    Views 1327  Likes 0

    ICQ and CRF 0

쓰기
Board Pagination Prev 1 2 3 4 5 6 7 8 9 10 Next
/ 10