[MacPorts] #55533: mpv @0.26: can't playback youtube playlist (was: mpv(0.26 at yosemite): can't playback youtube playlist)

[MacPorts]

#55533: mpv @0.26: can't playback youtube playlist
----------------------+----------------------
  Reporter:  mrkapqa  |      Owner:  Ionic
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.4.2
Resolution:           |   Keywords:
      Port:  mpv      |
----------------------+----------------------
Changes (by ryandesign):

 * status:  new => assigned
 * owner:   => Ionic
 * keywords:  mpv yosemite youtube-dl =>
 * type:  enhancement => defect


Old description:

> richs-Mac-mini:~ rich$ mpv --version
> mpv 0.26.0 (C) 2000-2017 mpv/MPlayer/mplayer2 projects
>  built on Sat Dec 16 21:56:17 CET 2017
> ffmpeg library versions:
>    libavutil       55.78.100
>    libavcodec      57.107.100
>    libavformat     57.83.100
>    libswscale      4.8.100
>    libavfilter     6.107.100
>    libswresample   2.9.100
> ffmpeg version: 3.4.1
>

> built on yosemite 10.10 with youtube-dl installed  with
>
> sudo curl -L https://yt-dl.org/downloads/latest/youtube-dl -o
> /usr/local/bin/youtube-dl
> sudo chmod a+rx /usr/local/bin/youtube-dl
>

>
> can' playback youtube playlist
>
> eg.
>
> mpv https://www.youtube.com/watch?v=Vn7kB0f16jg&list=PL-
> 2mqY82TEri1eOFZmhfwuLxX11V1TkcI
>
> [1] 12138
> richs-Mac-mini:~ rich$ Playing:
> https://www.youtube.com/watch?v=Vn7kB0f16jg
> [ytdl_hook]
> [ytdl_hook] stack traceback:
> [ytdl_hook]     [C]: in function 'len'
> [ytdl_hook]     @ytdl_hook.lua:71: in function 'edl_escape'
> [ytdl_hook]     @ytdl_hook.lua:139: in function 'edl_track_joined'
> [ytdl_hook]     @ytdl_hook.lua:171: in function 'add_single_video'
> [ytdl_hook]     @ytdl_hook.lua:454: in function 'fn'
> [ytdl_hook]     mp.defaults:518: in function 'handler'
> [ytdl_hook]     mp.defaults:339: in function 'handler'
> [ytdl_hook]     mp.defaults:458: in function 'call_event_handlers'
> [ytdl_hook]     mp.defaults:495: in function 'dispatch_events'
> [ytdl_hook]     mp.defaults:451: in function <mp.defaults:450>
> [ytdl_hook]     [C]: in ?
> [ytdl_hook]     [C]: in ?
> [ytdl_hook] Lua error: @ytdl_hook.lua:71: bad argument #1 to 'len'
> (string expected, got nil)
> [ffmpeg] tls: IO Error: -9806
> Failed to recognize file format.

New description:

 {{{
 richs-Mac-mini:~ rich$ mpv --version
 mpv 0.26.0 (C) 2000-2017 mpv/MPlayer/mplayer2 projects
  built on Sat Dec 16 21:56:17 CET 2017
 ffmpeg library versions:
    libavutil       55.78.100
    libavcodec      57.107.100
    libavformat     57.83.100
    libswscale      4.8.100
    libavfilter     6.107.100
    libswresample   2.9.100
 ffmpeg version: 3.4.1
 }}}

 built on yosemite 10.10 with youtube-dl installed  with

 {{{
 sudo curl -L https://yt-dl.org/downloads/latest/youtube-dl -o
 /usr/local/bin/youtube-dl
 sudo chmod a+rx /usr/local/bin/youtube-dl
 }}}

 can' playback youtube playlist

 eg.

 {{{
 mpv https://www.youtube.com/watch?v=Vn7kB0f16jg&list=PL-
 2mqY82TEri1eOFZmhfwuLxX11V1TkcI

 [1] 12138
 richs-Mac-mini:~ rich$ Playing:
 https://www.youtube.com/watch?v=Vn7kB0f16jg
 [ytdl_hook]
 [ytdl_hook] stack traceback:
 [ytdl_hook]     [C]: in function 'len'
 [ytdl_hook]     @ytdl_hook.lua:71: in function 'edl_escape'
 [ytdl_hook]     @ytdl_hook.lua:139: in function 'edl_track_joined'
 [ytdl_hook]     @ytdl_hook.lua:171: in function 'add_single_video'
 [ytdl_hook]     @ytdl_hook.lua:454: in function 'fn'
 [ytdl_hook]     mp.defaults:518: in function 'handler'
 [ytdl_hook]     mp.defaults:339: in function 'handler'
 [ytdl_hook]     mp.defaults:458: in function 'call_event_handlers'
 [ytdl_hook]     mp.defaults:495: in function 'dispatch_events'
 [ytdl_hook]     mp.defaults:451: in function <mp.defaults:450>
 [ytdl_hook]     [C]: in ?
 [ytdl_hook]     [C]: in ?
 [ytdl_hook] Lua error: @ytdl_hook.lua:71: bad argument #1 to 'len' (string
 expected, got nil)
 [ffmpeg] tls: IO Error: -9806
 Failed to recognize file format.
 }}}

--

Comment:

 I don't know if this is the entire reason why it fails for you, but it
 looks like you forgot to escape special characters from the shell.
 Specifically, the `&` in the URL is a special character to the shell: it
 means "run the preceding command in the background instead of the
 foreground." Which means that you ran the command `mpv
 https://www.youtube.com/watch?v=Vn7kB0f16jg` in the background (which, as
 shown in your output, was assigned the process id 12138), and the command
 `list=PL-2mqY82TEri1eOFZmhfwuLxX11V1TkcI` in the foreground, which isn't
 what you meant to do.

 Enclose the URL in quotes so that the shell doesn't interpret the `&` in a
 special way:

 {{{
 mpv 'https://www.youtube.com/watch?v=Vn7kB0f16jg&list=PL-
 2mqY82TEri1eOFZmhfwuLxX11V1TkcI'
 }}}

 I also wanted to point out that we do have a port for youtube-dl, and that
 if you installed the mpv port, it already declares a dependency on the
 youtube-dl port, so you don't need to (and shouldn't) install youtube-dl
 manually in /usr/local since MacPorts already installed it for you in
 /opt/local.

--
Ticket URL: <https://trac.macports.org/ticket/55533#comment:1>
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