如何使用youtube-dl命令下载部分视频？

#1 楼

youtube-dl -g "https://www.youtube.com/watch?v=V_f2QkBdbRI"

ffmpeg -ss 00:00:15.00 -i "OUTPUT-OF-FIRST URL" -t 00:00:10.00 -c copy out.mp4

#2 楼

ffmpeg -ss 12:15 -i "1st-URL" -ss 12:15 -i "2nd-URL" -t 5:15 -map 0:v -map 1:a -c:v libx264 -c:a aac output.mkv

youtube-dl --youtube-skip-dash-manifest -g https://www.youtube.com/watch?v=gESHIrvIQQo

https://r3---sn-mv-cvne.googlevideo.com/videoplayback/id/80448722bbc8410a/itag/298/source/youtube/requiressl/yes/mn/sn-mv-cvne/ei/BgifWfmmL4iE8wSlv47oCA/mm/31/pl/23/mv/m/ms/au/initcwndbps/11447500/ratebypass/yes/mime/video%2Fmp4/otfp/1/gir/yes/clen/5231968228/lmt/1502479662079137/dur/18575.164/key/dg_yt0/signature/4FFB9B0B7E1703B31F5D07DAD579B55F17EF7BAA.0CB63905C89DD4D33F90CF3AAD728F1ECDFCB9B3/mt/1503594423/ip/206.34.122.70/ipbits/0/expire/1503616102/sparams/ip,ipbits,expire,id,itag,source,requiressl,mn,ei,mm,pl,mv,ms,initcwndbps,ratebypass,mime,otfp,gir,clen,lmt,dur/
https://r3---sn-mv-cvne.googlevideo.com/videoplayback/id/80448722bbc8410a/itag/140/source/youtube/requiressl/yes/mn/sn-mv-cvne/ei/BgifWfmmL4iE8wSlv47oCA/mm/31/pl/23/mv/m/ms/au/initcwndbps/11447500/ratebypass/yes/mime/audio%2Fmp4/otfp/1/gir/yes/clen/295235970/lmt/1502480001536214/dur/18575.243/key/dg_yt0/signature/4CD42047D1D5C714377350905C1CC5CBA37C0009.6EED1FC92D17A096235C32E48F4B15DEF7DD99B0/mt/1503594423/ip/206.34.122.70/ipbits/0/expire/1503616102/sparams/ip,ipbits,expire,id,itag,source,requiressl,mn,ei,mm,pl,mv,ms,initcwndbps,ratebypass,mime,otfp,gir,clen,lmt,dur/

 # The first URL
video_url="https://r3---sn-mv-cvne.googlevideo.com/videoplayback/id/80448722bbc8410a/itag/298/source/youtube/requiressl/yes/pl/23/ei/5wCfWY6dBeOj8gSSxZaACQ/mv/m/initcwndbps/5055000/ms/au/mm/31/mn/sn-mv-cvne/ratebypass/yes/mime/video%2Fmp4/otfp/1/gir/yes/clen/5231968228/lmt/1502479662079137/dur/18575.164/key/dg_yt0/beids/%5B9466591%5D/mt/1503592562/signature/8CCFBF5CAB97341D0CB1F34E85AB6EE20FC7A03E.7679F39A8603CF41A95F10232E2A921EB0774101/ip/206.34.122.70/ipbits/0/expire/1503614279/sparams/ip,ipbits,expire,id,itag,source,requiressl,pl,ei,mv,initcwndbps,ms,mm,mn,ratebypass,mime,otfp,gir,clen,lmt,dur/"
# The second URL
audio_url="https://r3---sn-mv-cvne.googlevideo.com/videoplayback/id/80448722bbc8410a/itag/140/source/youtube/requiressl/yes/pl/23/ei/5wCfWY6dBeOj8gSSxZaACQ/mv/m/initcwndbps/5055000/ms/au/mm/31/mn/sn-mv-cvne/ratebypass/yes/mime/audio%2Fmp4/otfp/1/gir/yes/clen/295235970/lmt/1502480001536214/dur/18575.243/key/dg_yt0/beids/%5B9466591%5D/mt/1503592562/signature/4AACC8E27F9036D36D4D623A771A9F2BAC4674BA.7E4F4FB4DC023E3FE491A991F0F9F2329648DE9D/ip/206.34.122.70/ipbits/0/expire/1503614279/sparams/ip,ipbits,expire,id,itag,source,requiressl,pl,ei,mv,initcwndbps,ms,mm,mn,ratebypass,mime,otfp,gir,clen,lmt,dur/"
ffmpeg -ss 42:30 -i "$video_url" -ss 42:30 -i "$audio_url" -map 0:v -map 1:a -ss 30 -t 7:10 -c:v libx264 -c:a aac gog-vs-triv.mkv
 

#3 楼

ffmpeg $(youtube-dl -g 'https://www.youtube.com/watch?v=oHg5SJYRHA0' | sed 's/.*/-ss 00:05 -i &/') -t 01:00 -c copy out.mkv

#4 楼

#5 楼

#6 楼

$ youtube-dl --postprocessor-args "-ss 0:0:15 -to 0:1:20" '[video_URL]'

$ youtube-dl --postprocessor-args "-ss 0:0:15 -t 0:3:5" '[video_URL]'

#7 楼

$ youtube-dl -g https://www.youtube.com/watch?v=yysk8s2vih8
https://r1---sn-npoeenee.googlevideo.com/videoplayback?source=youtu...
https://r1---sn-npoeenee.googlevideo.com/videoplayback?source=youtu...

$ curl "1st-URL" -sI | grep Content-Length
Content-Length: 64380504

$ curl "1st-URL" -H "Range: bytes=0-2867150" -o ten_secs.mp4

$ ffmpeg -i ten_secs.mp4 -c copy corrected_ten_secs.mp4

#8 楼

#9 楼

 #!/bin/bash
#taken from https://unix.stackexchange.com/a/388148/48971

if [ $# -lt 4 ]; then
        echo "Usage: q4312079q <youtube's URL> <HH:mm:ss from time> <HH:mm:ss to time> <output_file_name>"
        echo "e.g.:"
        echo "q4312079q https://www.youtube.com/watch?v=T1n5gXIPyws 00:00:25 00:00:42 intro.mp4"
        exit 1
fi

echo "processing..."

from=$(date "+%s" -d "UTC 01/01/1970 ")
to=$(date "+%s" -d "UTC 01/01/1970 ")

from_pre=$(($from - 30))

if [ $from_pre -lt 0 ]
then
        from_pre=0
fi

from_pre_command_print=$(date -u "+%T" -d @$from_pre)
from_command_print=$(date -u "+%T" -d @$(($from - $from_pre)))$(grep -o "\..*" <<< )
to_command_print=$(date -u "+%T" -d @$(($to - $from_pre)))$(grep -o "\..*" <<< )

command="ffmpeg "

for uri in $(youtube-dl -g )
do
        command+="-ss $from_pre_command_print -i $uri "
done

command+="-ss $from_command_print -to $to_command_print "
echo "downloading with the following command:"
echo "$command" 
$command

 

#10 楼

YouTube.com/blahblah start-1:20

#11 楼

youtube-dl.exe https://www.youtube.com/watch?v=MJD39Aja1Is --external-downloader ffmpeg --external-downloader-args "-ss 00:00:10.00 -t 00:01:00.00"

youtube-dl.exe -f 251 https://www.youtube.com/watch?v=MJD39Aja1Is -x --external-downloader ffmpeg --external-downloader-args "-ss 00:00:10.00 -t 00:01:00.00"

#12 楼

@ECHO off

:Input
ECHO.
SET url=
ECHO Enter Youtube-url:
SET /P url=
IF "%url%" EQU "" GOTO End
IF "%url: =%" NEQ "%url%" GOTO Input
ECHO Enter start time (in seconds, or in hh:mm:ss[.xxx] form):
SET /P start=
ECHO Enter duration (in seconds, or in hh:mm:ss[.xxx] form):
SET /P dur=
ECHO.
FOR /F "delims==" %%A IN ('youtube-dl.exe --no-warnings --get-filename "%url%"') DO SET filename=%%A
FOR /F %%B IN ('youtube-dl.exe -g "%url%"') DO (
ffmpeg.exe -hide_banner -ss "%start%" -i "%%B" -c copy -t "%dur%" "%filename%"
)
GOTO Input

:End