youtube-dl.exe (-s -F
https://www.youtube.com/watch?v=san885R70kU) says:
Code: Select all
[info] Available formats for san885R70kU:
format code extension resolution note
18 mp4 640x360 medium , avc1.42001E, mp4a.40.2@ 96k
22 mp4 1280x720 hd720 , avc1.64001F, mp4a.40.2@192k (best)
43 webm 640x360 medium , vp8.0, vorbis@128k
-------
17 3gp 176x144 small , mp4v.20.3, mp4a.40.2@ 24k
36 3gp 320x180 small , mp4v.20.3, mp4a.40.2
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140 m4a audio only DASH audio 127k , m4a_dash container, mp4a.40.2@128k (44100Hz), 6.10MiB
171 webm audio only DASH audio 128k , vorbis@128k, 4.53MiB
249 webm audio only DASH audio 52k , opus @ 50k, 2.35MiB
250 webm audio only DASH audio 71k , opus @ 70k, 2.88MiB
251 webm audio only DASH audio 141k , opus @160k, 5.36MiB
278 webm 256x144 144p 126k , webm container, vp9, 30fps, video only, 4.56MiB
242 webm 426x240 240p 281k , vp9, 30fps, video only, 7.68MiB
243 webm 640x360 360p 513k , vp9, 30fps, video only, 13.84MiB
244 webm 854x480 480p 928k , vp9, 30fps, video only, 24.05MiB
247 webm 1280x720 720p 1820k , vp9, 30fps, video only, 48.94MiB
160 mp4 256x144 DASH video 112k , avc1.4d400c, 30fps, video only, 5.19MiB
133 mp4 426x240 DASH video 247k , avc1.4d4015, 30fps, video only, 11.47MiB
134 mp4 640x360 DASH video 633k , avc1.4d401e, 30fps, video only, 13.45MiB
135 mp4 854x480 DASH video 1158k , avc1.4d401f, 30fps, video only, 27.06MiB
136 mp4 1280x720 DASH video 2314k , avc1.4d401f, 30fps, video only, 51.65MiB
So, if I'm reading correctly...
3gp, you don't want that period. (Well, maybe for special situations...)
Non-Dash:
-mp4, you can get medium or hd720
-webm, you can get medium (which is VP8 rather then a preferred VP9)
So, I'm not seeing a non-Dash "Large" at all.
Medium in both mp4 & webm.
hd720 only in mp4.
Dash:
Dash certainly gives you more options, in both & corresponding mp4/webm formats.
Formats offered on particular clips can change.
Can change over time.
Quality too can change, over time.
Sometimes for the better, sometimes for the worse.