TED Best video size calculation/selection

[asansli]

Thanks for update of all formats avaliable.

http://www.ted.com/playlists/180/the_10_most_popular_tedx_talks --max-quality -F --list-formats

get a long list as

youtube-dl http://www.ted.com/talks/ismael_nazario_what_i_learned_as_a_kid_in_jail --max-quality -F --list-formats 
[TED] ismael_nazario_what_i_learned_as_a_kid_in_jail: Downloading webpage
[TED] ismael_nazario_what_i_learned_as_a_kid_in_jail: Extracting information
[TED] ismael_nazario_what_i_learned_as_a_kid_in_jail: Downloading m3u8 information
[info] Available formats for 2207:
format code  extension  resolution note
hls-meta     mp4        multiple   Quality selection URL 
rtmp-64k     flv        398x224      64k 
hls-68       mp4        unknown      68k , mp4a
rtmp-180k    flv        512x288     180k 
hls-282      mp4        320x180     282k , avc1, mp4a 
rtmp-320k    flv        512x288     320k 
rtmp-450k    flv        512x288     450k 
rtmp-600k    flv        640x360     600k 
hls-790      mp4        512x288     790k , avc1, mp4a 
rtmp-950k    flv        854x480     950k 
hls-1407     mp4        512x288    1407k , avc1, mp4a 
rtmp-1500k   flv        1280x720   1500k 
hls-2017     mp4        512x288    2017k , avc1, mp4a 
hls-2680     mp4        640x360    2680k , avc1, mp4a 
hls-3774     mp4        853x480    3774k , avc1, mp4a 
hls-5961     mp4        1280x720   5961k , avc1, mp4a 
audio        mp3        unknown    
h264-320k    mp4        unknown     320k 
low          mp4        320x180    
medium       mp4        512x288    
high         mp4        854x480    (best)

Although there are 1280x720 why these are not best? It marks 854x80 as best.

[dstftw]

These formats are video/audio only. In the next version bestaudio and bestvideo will be downloaded and merged by default if you have ffmpeg/avconv installed.