video - 从YouTube视频获取视频元数据

Question

有没有办法从iframe和嵌入式YouTube视频中获取元数据。另外-所有YouTube视频的比例和分辨率都一样吗？

Answer 1

您可以使用youtube-dl(开放源代码)下载youtube视频和/或获取视频元数据

# youtube-dl --list-formats  https://www.youtube.com/watch?v=3yS_iyJGtQg
[youtube] 3yS_iyJGtQg: Downloading webpage
[youtube] 3yS_iyJGtQg: Extracting video information
[youtube] 3yS_iyJGtQg: Downloading DASH manifest
[info] Available formats for 3yS_iyJGtQg:
format code  extension  resolution note
140          m4a        audio only DASH audio  129k , m4a_dash container, aac  @128k (44100Hz), 7.52MiB
278          webm       256x144    DASH video  104k , webm container, VP9, 13fps, video only, 4.95MiB
17           3gp        176x144
36           3gp        320x240
5            flv        400x240
43           webm       640x360
18           mp4        640x360
22           mp4        1280x720   (best)