How to livestream from youtube video link

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How to livestream from youtube video link

johnsmithbin
Hello.
I want livestream from youtube video link. I tried using youtube-dl https://www.youtube.com/watch?v=mosPaiR-nrs -g but the link returned is not a direct link. How can you help me?
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Re: How to livestream from youtube video link

DopeLabs
this would be a question for youtube-dl support.


> On Aug 23, 2017, at 9:16 57PM, johnsmithbin <[hidden email]> wrote:
>
> Hello.
> I want livestream from youtube video link. I tried using /youtube-dl
> https://www.youtube.com/watch?v=mosPaiR-nrs -g/ but the link returned is not
> a direct link. How can you help me?
>
>
>
> --
> View this message in context: http://www.ffmpeg-archive.org/How-to-livestream-from-youtube-video-link-tp4680974.html
> Sent from the FFmpeg-users mailing list archive at Nabble.com.
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Re: How to livestream from youtube video link

Jens Kallup
Hello,

you can download the video (with/without tools as firefox plugin)
and stream from your local station.
So, you have no sound/video problems.
An other way can be (I am not be sure) to use the vlan dll an code
your own program so, that you stream into a buffer, and play this
buffer directly to your client's.
You have then the advantage, that you save cpu power, because
the stream buffer must not display.

hope this helps
Jens


Am 26.08.2017 um 05:42 schrieb DopeLabs:

> this would be a question for youtube-dl support.
>
>
>> On Aug 23, 2017, at 9:16 57PM, johnsmithbin <[hidden email]> wrote:
>>
>> Hello.
>> I want livestream from youtube video link. I tried using /youtube-dl
>> https://www.youtube.com/watch?v=mosPaiR-nrs -g/ but the link returned is not
>> a direct link. How can you help me?
>>
>>
>>
>> --

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Re: How to livestream from youtube video link

Moritz Barsnick
In reply to this post by johnsmithbin
On Wed, Aug 23, 2017 at 21:16:57 -0700, johnsmithbin wrote:
> Hello.
> I want livestream from youtube video link. I tried using /youtube-dl
> https://www.youtube.com/watch?v=mosPaiR-nrs -g/ but the link returned is not
> a direct link. How can you help me?

The general issue is that some YouTube formats come as two separate
streams. You can check what youtube-dl can discover by calling
$ youtube-dl -F https://www.youtube.com/watch?v=mosPaiR-nrs

I think the issue with youtube-dl is it claims the composite MP4 format
is "best":
> [...]
> 22           mp4        1280x720   hd720 , avc1.64001F, mp4a.40.2@192k (best)

but when using "-g", it doesn't deliver that best format, but two other
URLs for a separate video and audio stream each. Note that, for this
particular clip, there's no composite video+audio format available from
YouTube with the highest resolution of 1920x1080.

You could do
$ ffmpeg -i $(youtube-dl -f "bestvideo" -g https://www.youtube.com/watch?v=mosPaiR-nrs) -i $(youtube-dl -f "bestaudio" -g https://www.youtube.com/watch?v=mosPaiR-nrs) -map 0:v -map 1:a [...]

I believe I have done that and it worked. You may want to query those
URLs first, put them in variables, and then hand these variables to ffmpeg.

Note that, depending on what codecs your livestream requires, you might
need to reencode, as YouTube likes delivering VP9 video and Opus audio,
which may or may not suit your needs. Otherwise, use
"bestvideo[ext=mp4]" and "bestaudio[ext=m4a]", if you prefer H.264 and
AAC.

Good luck,
Moritz
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Re: How to livestream from youtube video link

DopeLabs
$ youtube-dl -F https://www.youtube.com/watch?v=mosPaiR-nrs
[youtube] mosPaiR-nrs: Downloading webpage
[youtube] mosPaiR-nrs: Downloading video info webpage
[youtube] mosPaiR-nrs: Extracting video information
WARNING: unable to extract uploader nickname
[youtube] mosPaiR-nrs: Downloading MPD manifest
[info] Available formats for mosPaiR-nrs:
format code  extension  resolution note
139          m4a        audio only DASH audio   51k , m4a_dash container, mp4a.40.5@ 48k (22050Hz), 20.02MiB
249          webm       audio only DASH audio   64k , opus @ 50k, 21.96MiB
250          webm       audio only DASH audio   83k , opus @ 70k, 28.86MiB
140          m4a        audio only DASH audio  131k , m4a_dash container, mp4a.40.2@128k (44100Hz), 53.46MiB
171          webm       audio only DASH audio  141k , vorbis@128k, 52.00MiB
251          webm       audio only DASH audio  160k , opus @160k, 56.51MiB
160          mp4        256x144    DASH video  113k , avc1.4d400c, 25fps, video only, 34.41MiB
278          webm       256x144    144p  170k , webm container, vp9, 25fps, video only, 41.41MiB
242          webm       426x240    240p  350k , vp9, 25fps, video only, 88.67MiB
133          mp4        426x240    DASH video  374k , avc1.4d4015, 25fps, video only, 70.73MiB
243          webm       640x360    360p  655k , vp9, 25fps, video only, 164.62MiB
134          mp4        640x360    DASH video  779k , avc1.4d401e, 25fps, video only, 149.69MiB
244          webm       854x480    480p 1193k , vp9, 25fps, video only, 289.00MiB
135          mp4        854x480    DASH video 1696k , avc1.4d401e, 25fps, video only, 309.33MiB
247          webm       1280x720   720p 2299k , vp9, 25fps, video only, 579.09MiB
136          mp4        1280x720   DASH video 2426k , avc1.4d401f, 25fps, video only, 542.95MiB
137          mp4        1920x1080  DASH video 3961k , avc1.640028, 25fps, video only, 854.86MiB
248          webm       1920x1080  1080p 4034k , vp9, 25fps, video only, 1.04GiB
17           3gp        176x144    small , mp4v.20.3,  mp4a.40.2@ 24k
36           3gp        320x180    small , mp4v.20.3,  mp4a.40.2
43           webm       640x360    medium , vp8.0,  vorbis@128k
18           mp4        640x360    medium , avc1.42001E,  mp4a.40.2@ 96k
22           mp4        1280x720   hd720 , avc1.64001F,  mp4a.40.2@192k (best)


$ youtube-dl -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]' https://www.youtube.com/watch?v=mosPaiR-nrs
[youtube] mosPaiR-nrs: Downloading webpage
[youtube] mosPaiR-nrs: Downloading video info webpage
[youtube] mosPaiR-nrs: Extracting video information
WARNING: unable to extract uploader nickname
[youtube] mosPaiR-nrs: Downloading MPD manifest
[download] Destination: Маша та Ведмідь - На кухні з Машею (всі серії підряд) Masha and the Bear-mosPaiR-nrs.f137.mp4
[download] 100% of 854.86MiB in 00:26
[download] Destination: Маша та Ведмідь - На кухні з Машею (всі серії підряд) Masha and the Bear-mosPaiR-nrs.f140.m4a
[download] 100% of 53.46MiB in 00:02
[ffmpeg] Merging formats into "Маша та Ведмідь - На кухні з Машею (всі серії підряд) Masha and the Bear-mosPaiR-nrs.mp4"
Deleting original file Маша та Ведмідь - На кухні з Машею (всі серії підряд) Masha and the Bear-mosPaiR-nrs.f137.mp4 (pass -k to keep)
Deleting original file Маша та Ведмідь - На кухні з Машею (всі серії підряд) Masha and the Bear-mosPaiR-nrs.f140.m4a (pass -k to keep)

 
$ ffprobe -hide banner Маша\ та\ Ведмідь\ -\ На\ кухні\ з\ Машею\ \(всі\ серії\ підряд\)\ Masha\ and\\ thрії\ підряд\)\ Masha\ and\ the.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Маша та Ведмідь - На кухні з Машею (всі серії підряд) Masha and the Bear-mosPaiR-nrs.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.40.101
  Duration: 00:58:49.50, start: 0.000000, bitrate: 2161 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2029 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    Metadata:
      handler_name    : SoundHandler

the only problem is youtube-dl downloads each file sequentially, and for live streaming, thats no good. so we use a specific output template.

from the man pages....

 You can merge the video  and  audio  of  two  formats  into  a  single  file  using  -f <video-for-
       mat>+<audio-format>  (requires ffmpeg or avconv installed), for example -f bestvideo+bestaudio will
       download the best video-only format, the best audio-only format and mux  them  together  with  ffm-
       peg/avconv.

but the most important bit is...

Note that if you use youtube-dl to stream to stdout (and most likely to pipe it
       to your media player then), i.e.  you explicitly specify output template as -o -, youtube-dl  still
       uses -f best format selection in order to start content delivery immediately to your player and not
       to wait until bestvideo and bestaudio are downloaded and muxed.


hope this helps =]

cheers

> On Sep 4, 2017, at 7:38 05AM, Moritz Barsnick <[hidden email]> wrote:
>
> On Wed, Aug 23, 2017 at 21:16:57 -0700, johnsmithbin wrote:
>> Hello.
>> I want livestream from youtube video link. I tried using /youtube-dl
>> https://www.youtube.com/watch?v=mosPaiR-nrs -g/ but the link returned is not
>> a direct link. How can you help me?
>
> The general issue is that some YouTube formats come as two separate
> streams. You can check what youtube-dl can discover by calling
> $ youtube-dl -F https://www.youtube.com/watch?v=mosPaiR-nrs
>
> I think the issue with youtube-dl is it claims the composite MP4 format
> is "best":
>> [...]
>> 22           mp4        1280x720   hd720 , avc1.64001F, mp4a.40.2@192k (best)
>
> but when using "-g", it doesn't deliver that best format, but two other
> URLs for a separate video and audio stream each. Note that, for this
> particular clip, there's no composite video+audio format available from
> YouTube with the highest resolution of 1920x1080.
>
> You could do
> $ ffmpeg -i $(youtube-dl -f "bestvideo" -g https://www.youtube.com/watch?v=mosPaiR-nrs) -i $(youtube-dl -f "bestaudio" -g https://www.youtube.com/watch?v=mosPaiR-nrs) -map 0:v -map 1:a [...]
>
> I believe I have done that and it worked. You may want to query those
> URLs first, put them in variables, and then hand these variables to ffmpeg.
>
> Note that, depending on what codecs your livestream requires, you might
> need to reencode, as YouTube likes delivering VP9 video and Opus audio,
> which may or may not suit your needs. Otherwise, use
> "bestvideo[ext=mp4]" and "bestaudio[ext=m4a]", if you prefer H.264 and
> AAC.
>
> Good luck,
> Moritz
> _______________________________________________
> ffmpeg-user mailing list
> [hidden email]
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> [hidden email] with subject "unsubscribe".

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