finding file size for best format

[shirishag75]

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• I'm asking a question
• I've looked through the README and FAQ for similar questions
• I've searched the bugtracker for similar questions including closed ones

Question

First up -

$ youtube-dl --version
2020.01.24

Then secondly,

$ youtube-dl -F wXxFF-HtJzI
[youtube] wXxFF-HtJzI: Downloading webpage
[youtube] wXxFF-HtJzI: Downloading video info webpage
[info] Available formats for wXxFF-HtJzI:
format code  extension  resolution note
249          webm       audio only tiny   63k , opus @ 50k (48000Hz), 36.07MiB
250          webm       audio only tiny   80k , opus @ 70k (48000Hz), 44.99MiB
140          m4a        audio only tiny  136k , m4a_dash container, mp4a.40.2@128k (44100Hz), 101.63MiB
251          webm       audio only tiny  149k , opus @160k (48000Hz), 81.60MiB
160          mp4        256x144    144p   95k , avc1.4d400c, 25fps, video only, 22.91MiB
278          webm       256x144    144p   99k , webm container, vp9, 25fps, video only, 56.77MiB
133          mp4        426x240    240p  183k , avc1.4d4015, 25fps, video only, 44.01MiB
242          webm       426x240    240p  217k , vp9, 25fps, video only, 60.30MiB
243          webm       640x360    360p  391k , vp9, 25fps, video only, 119.25MiB
134          mp4        640x360    360p  465k , avc1.4d401e, 25fps, video only, 113.64MiB
244          webm       854x480    480p  654k , vp9, 25fps, video only, 211.02MiB
135          mp4        854x480    480p  880k , avc1.4d401e, 25fps, video only, 249.15MiB
247          webm       1280x720   720p 1324k , vp9, 25fps, video only, 479.16MiB
136          mp4        1280x720   720p 1642k , avc1.4d401f, 25fps, video only, 539.48MiB
248          webm       1920x1080  1080p 2464k , vp9, 25fps, video only, 949.09MiB
137          mp4        1920x1080  1080p 3020k , avc1.640028, 25fps, video only, 1.10GiB
43           webm       640x360    360p , vp8.0, vorbis@128k, 417.78MiB
18           mp4        640x360    360p  397k , avc1.42001E, mp4a.40.2@ 96k (44100Hz), 312.02MiB
22           mp4        1280x720   720p  816k , avc1.64001F, mp4a.40.2@192k (44100Hz) (best)

Now while all that is good, what I would like to know is why only it gives best info. and not file size info. as it does for the rest of them. It would make things whole lot easier. At times I have to be careful about my hdd so having the file size contents usually makes it easier to make choices. I know I could make educated guess using something like 136+140 or something. Looking forward to know more if I could have more info. about file size than just best, thank you.

[dstftw]

No filesize is provided for this format.