Does not pick best format

[branchmispredictor]

Testing out the scripts on https://www.youtube.com/watch?v=P_XguuxLo10 seems to download the format: 399+251.

But based on yt-dlp -F, there should be better video formats than 399:

[info] Available formats for P_XguuxLo10:
ID  EXT   RESOLUTION FPS CH │   FILESIZE   TBR PROTO │ VCODEC          VBR ACODEC      ABR ASR MORE INFO
────────────────────────────────────────────────────────────────────────────────────────────────────────────────
sb3 mhtml 48x27        0    │                  mhtml │ images                                  storyboard
sb2 mhtml 80x45        0    │                  mhtml │ images                                  storyboard
sb1 mhtml 160x90       0    │                  mhtml │ images                                  storyboard
sb0 mhtml 320x180      0    │                  mhtml │ images                                  storyboard
233 mp4   audio only        │                  m3u8  │ audio only          unknown             Default
234 mp4   audio only        │                  m3u8  │ audio only          unknown             Default
139 m4a   audio only      2 │   10.10MiB   49k https │ audio only          mp4a.40.5   49k 22k low, m4a_dash
249 webm  audio only      2 │   10.49MiB   51k https │ audio only          opus        51k 48k low, webm_dash
250 webm  audio only      2 │   13.80MiB   67k https │ audio only          opus        67k 48k low, webm_dash
140 m4a   audio only      2 │   26.81MiB  129k https │ audio only          mp4a.40.2  129k 44k medium, m4a_dash
251 webm  audio only      2 │   27.08MiB  131k https │ audio only          opus       131k 48k medium, webm_dash
17  3gp   176x144     12  1 │   15.73MiB   76k https │ mp4v.20.3           mp4a.40.2       22k 144p
394 mp4   256x144     24    │   12.07MiB   58k https │ av01.0.00M.08   58k video only          144p, mp4_dash
269 mp4   256x144     24    │ ~ 33.35MiB  157k m3u8  │ avc1.4D400C    157k video only
160 mp4   256x144     24    │   11.91MiB   58k https │ avc1.4D400C     58k video only          144p, mp4_dash
603 mp4   256x144     24    │ ~ 35.80MiB  169k m3u8  │ vp09.00.11.08  169k video only
278 webm  256x144     24    │   14.52MiB   70k https │ vp09.00.11.08   70k video only          144p, webm_dash
395 mp4   426x240     24    │   21.84MiB  105k https │ av01.0.00M.08  105k video only          240p, mp4_dash
229 mp4   426x240     24    │ ~ 56.58MiB  267k m3u8  │ avc1.4D4015    267k video only
133 mp4   426x240     24    │   24.36MiB  118k https │ avc1.4D4015    118k video only          240p, mp4_dash
604 mp4   426x240     24    │ ~ 59.95MiB  283k m3u8  │ vp09.00.20.08  283k video only
242 webm  426x240     24    │   22.41MiB  108k https │ vp09.00.20.08  108k video only          240p, webm_dash
396 mp4   640x360     24    │   38.99MiB  188k https │ av01.0.01M.08  188k video only          360p, mp4_dash
230 mp4   640x360     24    │ ~110.71MiB  522k m3u8  │ avc1.4D401E    522k video only
134 mp4   640x360     24    │   45.97MiB  222k https │ avc1.4D401E    222k video only          360p, mp4_dash
18  mp4   640x360     24  2 │ ≈ 74.46MiB  351k https │ avc1.42001E         mp4a.40.2       44k 360p
605 mp4   640x360     24    │ ~132.74MiB  626k m3u8  │ vp09.00.21.08  626k video only
243 webm  640x360     24    │   54.47MiB  263k https │ vp09.00.21.08  263k video only          360p, webm_dash
397 mp4   854x480     24    │   71.33MiB  344k https │ av01.0.04M.08  344k video only          480p, mp4_dash
231 mp4   854x480     24    │ ~154.20MiB  727k m3u8  │ avc1.4D401E    727k video only
135 mp4   854x480     24    │   84.16MiB  406k https │ avc1.4D401E    406k video only          480p, mp4_dash
606 mp4   854x480     24    │ ~194.21MiB  916k m3u8  │ vp09.00.30.08  916k video only
244 webm  854x480     24    │   78.55MiB  379k https │ vp09.00.30.08  379k video only          480p, webm_dash
22  mp4   1280x720    24  2 │ ≈194.08MiB  915k https │ avc1.64001F         mp4a.40.2       44k 720p
398 mp4   1280x720    24    │  129.21MiB  624k https │ av01.0.05M.08  624k video only          720p, mp4_dash
232 mp4   1280x720    24    │ ~281.07MiB 1326k m3u8  │ avc1.4D401F   1326k video only
136 mp4   1280x720    24    │  162.82MiB  786k https │ avc1.4D401F    786k video only          720p, mp4_dash
609 mp4   1280x720    24    │ ~332.93MiB 1570k m3u8  │ vp09.00.31.08 1570k video only
247 webm  1280x720    24    │  145.73MiB  704k https │ vp09.00.31.08  704k video only          720p, webm_dash
399 mp4   1920x1080   24    │  226.80MiB 1095k https │ av01.0.08M.08 1095k video only          1080p, mp4_dash
270 mp4   1920x1080   24    │ ~735.93MiB 3471k m3u8  │ avc1.640028   3471k video only
137 mp4   1920x1080   24    │  395.03MiB 1908k https │ avc1.640028   1908k video only          1080p, mp4_dash
614 mp4   1920x1080   24    │ ~592.76MiB 2796k m3u8  │ vp09.00.40.08 2796k video only
248 webm  1920x1080   24    │  258.40MiB 1248k https │ vp09.00.40.08 1248k video only          1080p, webm_dash
616 mp4   1920x1080   24    │ ~993.02MiB 4683k m3u8  │ vp09.00.40.08 4683k video only          Premium

I'd expect 616 to be picked, but there seems to be several higher quality 1080p videos than 399. Using --format "bestvideo+bestaudio" seems to pick 616. Is there a need to use the longer format string from this repo still?

[TheFrenchGhosty]

102

[TheFrenchGhosty]

Tested:

• 399 is AV1
• 616 is VP9

AV01 is preferred compared to VP9 since it's a more recent codec.

This is unrelated to #102, this is on purpose.