我想下载一份视频,分辨率为1920x1080,音频码率为192kb/s,但是我无法同时提取两者。
format code extension resolution note
249 webm audio only DASH audio 51k , opus @ 50k, 600.56KiB
250 webm audio only DASH audio 67k , opus @ 70k, 788.31KiB
251 webm audio only DASH audio 132k , opus @160k, 1.53MiB
140 m4a audio only DASH audio 134k , m4a_dash container, mp4a.40.2@128k, 1.52MiB
171 webm audio only DASH audio 135k , vorbis@128k, 1.53MiB
160 mp4 256x144 144p 110k , avc1.42c00c, 12fps, video only, 1.30MiB
278 webm 256x144 144p 134k , webm container, vp9, 12fps, video only, 1.18MiB
133 mp4 426x240 240p 248k , avc1.4d4015, 24fps, video only, 2.91MiB
242 webm 426x240 240p 254k , vp9, 24fps, video only, 2.30MiB
243 webm 640x360 360p 475k , vp9, 24fps, video only, 4.17MiB
134 mp4 640x360 360p 617k , avc1.4d401e, 24fps, video only, 5.00MiB
244 webm 854x480 480p 861k , vp9, 24fps, video only, 7.31MiB
135 mp4 854x480 480p 1110k , avc1.4d401e, 24fps, video only, 9.33MiB
247 webm 1280x720 720p 1691k , vp9, 24fps, video only, 13.90MiB
136 mp4 1280x720 720p 2220k , avc1.4d401f, 24fps, video only, 17.41MiB
248 webm 1920x1080 1080p 3044k , vp9, 24fps, video only, 24.43MiB
137 mp4 1920x1080 1080p 4160k , avc1.640028, 24fps, video only, 31.42MiB
17 3gp 176x144 small , mp4v.20.3, mp4a.40.2@ 24k
36 3gp 320x180 small , mp4v.20.3, mp4a.40.2
43 webm 640x360 medium , vp8.0, vorbis@128k
18 mp4 640x360 medium , avc1.42001E, mp4a.40.2@ 96k
22 mp4 1280x720 hd720 , avc1.64001F, mp4a.40.2@192k (best)
我正在尝试将来自137的1920x1080视频和来自22的192kb/s音频合并(因为这是最好的可用选项)。
-f 'bestvideo[height<=1080]+bestaudio/best[height<=1080]' --merge-output-format mp4
但输出文件的音频比特率只有125kb / s。我该如何下载所需规格?
编辑1: 示例视频链接:https://www.youtube.com/watch?v=i-c-K3pNtj4
注意:我对音频编解码器不是很了解,但我想选择最好的一个,所以如果可能的话,请提供用于识别最佳音频的事实,即使它优于比特率。