How do you use youtube-dl to download live streams that are live

Question

Just wondering if that s possible or not- when I copy the video URL into YouTube-dl it spits out  https   0x7fc351416080  inflate return value  -3  incorrect header check Last message repeated 15 times  After that it spits out of couple lines of red text that doesn t seem to want to copy in properly  so I took a snippet  Does anyone know if this is possible

User · Answer

Before  this could be downloaded with streamlink but YouTube changed HLS rewinding with DASH  Therefore the way to do it below  that Prashant Adlinge commented  no longer works for YouTube   streamlink --hls-live-restart STREAMURL best   More info here

User · Answer

I have Written a small script to download the live youtube video  you may use as single command as well  script it can be invoked simply as     ytdl lv sh  lt URL gt   lt output file name gt    e g         ytdl lv sh https   www youtube com watch v BLIGxsYLyjc myfile mp4   script is as simple as below      bin bash     ytdl lv sh   Author Prashant     URL  1  OUTNAME  2 streamlink --hls-live-restart -o   OUTNAME    URL  best   here the best is the stream quality  it also can be 144p  worst   240p  360p  480p  720p  best

User · Answer

Some websites with m3u streaming cannot be downloaded in a single youtube-dl step  you can try something like this      URL https   www arte tv fr videos 078132-001-A cosmos-une-odyssee-a-travers-l-univers    youtube-dl -F  URL   grep m3u HLS XQ 2     m3u8       1280x720   VA-STA  Allemand 2200k  HLS XQ 1     m3u8       1280x720   VF-STF  Fran  ais 2200k    CHOSEN FORMAT HLS XQ 1   youtube-dl -F    youtube-dl -gf  CHOSEN FORMAT    generic  master  Requesting header  generic  master  Downloading webpage  generic  master  Downloading m3u8 information  info  Available formats for master  format code  extension  resolution note 61           mp4        audio only   61k   mp4a 40 2 419          mp4        384x216     419k   avc1 66 30  mp4a 40 2 923          mp4        640x360     923k   avc1 77 30  mp4a 40 2 1737         mp4        720x406    1737k   avc1 77 30  mp4a 40 2 2521         mp4        1280x720   2521k   avc1 77 30  mp4a 40 2  best    youtube-dl --hls-prefer-native -f 1737    youtube-dl -gf  CHOSEN FORMAT  URL   -o    youtube-dl -f  CHOSEN FORMAT --get-filename  URL    generic  master  Requesting header  generic  master  Downloading webpage  generic  master  Downloading m3u8 information  hlsnative  Downloading m3u8 manifest  hlsnative  Total fragments  257  download  Destination  Cosmos une odyssee a travers l univers  HLS XQ 1  078132-001-A mp4  download    0 9  of  731 27MiB at 624 95KiB s ETA 13 13

User · Answer

There is no need to pass anything to ffmpeg you can just grab the desired format  in this example  it was the  95  format   So once you know that it is the 95  you just type   youtube-dl -f 95  https   www youtube com watch  v  6aXR-SL5L2o   that is to say   youtube-dl -f  lt format number gt   lt url gt    It will begin generating on the working directory a  lt somename gt   lt probably mp4 gt  part which is the partially downloaded file  let it go and just press  lt Ctrl-C gt  to stop the capture   The file will still be named  lt something gt  part  rename it to  lt whatever gt  mp4 and there it is     The ffmpeg code   ffmpeg -i   youtube-dl -f  lt format number gt  -g  lt url gt   -copy  lt file name gt  ts   also worked for me  but sound and video got out of sync  using just youtube-dl seemed to yield a better result although it too uses ffmpeg   The downside of this approach is that you cannot watch the video while downloading  well you can open yet another FF or Chrome  but it seems that mplayer cannot process the video output till youtube-dl ffmpeg are running

User · Answer

I ll be using this Live Event from NASA TV as an example  https   www youtube com watch v 21X5lGlDOfg First  list the formats for the video       youtube-dl --list-formats https   www youtube com watch  v  21X5lGlDOfg  youtube  21X5lGlDOfg  Downloading webpage  youtube  21X5lGlDOfg  Downloading m3u8 information  youtube  21X5lGlDOfg  Downloading MPD manifest  info  Available formats for 21X5lGlDOfg  format code  extension  resolution note 91           mp4        256x144    HLS  197k   avc1 42c00b  30 0fps  mp4a 40 5  48k 92           mp4        426x240    HLS  338k   avc1 4d4015  30 0fps  mp4a 40 5  48k 93           mp4        640x360    HLS  829k   avc1 4d401e  30 0fps  mp4a 40 2 128k 94           mp4        854x480    HLS 1380k   avc1 4d401f  30 0fps  mp4a 40 2 128k 300          mp4        1280x720   3806k   avc1 4d4020  60 0fps  mp4a 40 2  best   Pick the format you wish to download  and fetch the HLS m3u8 URL of the video from the manifest   I ll be using 94           mp4        854x480    HLS 1380k   avc1 4d401f  30 0fps  mp4a 40 2 128k for this example       youtube-dl -f 94 -g https   www youtube com watch  v  21X5lGlDOfg https   manifest googlevideo com api manifest hls playlist expire 1592099895 ei 1y lXuLOEsnXyQWYs4GABw ip 81 190 155 248 id 21X5lGlDOfg 3 itag 94 source yt live broadcast requiressl yes ratebypass yes live 1 goi 160 sgoap gir 3Dyes 3Bitag 3D140 sgovp gir 3Dyes 3Bitag 3D135 hls chunk host r5---sn-h0auphxqp5-f5fs googlevideo com playlist duration 30 manifest duration 30 vprv 1 playlist type DVR initcwndbps 8270 mh N8 mm 44 mn sn-h0auphxqp5-f5fs ms lva mv m mvi 4 pl 16 dover 11 keepalive yes beids 9466586 mt 1592078245 disable polymer true sparams expire ei ip id itag source requiressl ratebypass live goi sgoap sgovp playlist duration manifest duration vprv playlist type sig AOq0QJ8wRgIhAM2dGSece2shUTgS73Qa3KseLqnf85ca 9u7Laz7IDfSAiEAj8KHw 9xXVS PV3ODLlwDD-xfN6rSOcLVNBpxKgkRLI 3D lsparams hls chunk host initcwndbps mh mm mn ms mv mvi pl lsig AG3C xAwRQIhAJCO6kSwn7PivqMW7sZaiYFvrultXl6Qmu9wppjCvImzAiA7vkub9JaanJPGjmB4qhLVpHJOb9fZyhMEeh1EUCd-3Q 3D 3D playlist index m3u8  Note that link could be different and it contains expiration timestamp  in this case 1592099895  about 6 hours   Now that you have the HLS playlist  you can open this URL in VLC and save it using  quot Record quot   or write a small ffmpeg command  ffmpeg -i   https   manifest googlevideo com api manifest hls playlist expire 1592099895 ei 1y lXuLOEsnXyQWYs4GABw ip 81 190 155 248 id 21X5lGlDOfg 3 itag 94 source yt live broadcast requiressl yes ratebypass yes live 1 goi 160 sgoap gir 3Dyes 3Bitag 3D140 sgovp gir 3Dyes 3Bitag 3D135 hls chunk host r5---sn-h0auphxqp5-f5fs googlevideo com playlist duration 30 manifest duration 30 vprv 1 playlist type DVR initcwndbps 8270 mh N8 mm 44 mn sn-h0auphxqp5-f5fs ms lva mv m mvi 4 pl 16 dover 11 keepalive yes beids 9466586 mt 1592078245 disable polymer true sparams expire ei ip id itag source requiressl ratebypass live goi sgoap sgovp playlist duration manifest duration vprv playlist type sig AOq0QJ8wRgIhAM2dGSece2shUTgS73Qa3KseLqnf85ca 9u7Laz7IDfSAiEAj8KHw 9xXVS PV3ODLlwDD-xfN6rSOcLVNBpxKgkRLI 3D lsparams hls chunk host initcwndbps mh mm mn ms mv mvi pl lsig AG3C xAwRQIhAJCO6kSwn7PivqMW7sZaiYFvrultXl6Qmu9wppjCvImzAiA7vkub9JaanJPGjmB4qhLVpHJOb9fZyhMEeh1EUCd-3Q 3D 3D playlist index m3u8   -c copy output ts

[youtube] How do you use youtube-dl to download live streams (that are live)?

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