GNU bug report logs - #40060
[PATCH 0/2] youtube-dl add ffmpeg, pycryptodome and zsh-completion

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Package: guix-patches;

Reported by: Brice Waegeneire <brice <at> waegenei.re>

Date: Sat, 14 Mar 2020 14:35:01 UTC

Severity: normal

Tags: patch

Done: Brice Waegeneire <brice <at> waegenei.re>

Bug is archived. No further changes may be made.

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Acknowledgement sent to Brice Waegeneire <brice <at> waegenei.re>:
New bug report received and forwarded. Copy sent to guix-patches <at> gnu.org. (Sat, 14 Mar 2020 14:35:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: guix-patches <at> gnu.org
Subject: [PATCH 0/2] youtube-dl add ffmpeg, pycryptodome and zsh-completion
Date: Sat, 14 Mar 2020 15:34:18 +0100
Brice Waegeneire (2):
  gnu: youtube-dl: Use ffmpeg and pycryptodome
  gnu: youtube-dl: Add zsh completion

 gnu/packages/video.scm | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

-- 
2.25.0





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Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: guix-patches <at> gnu.org
Subject: [PATCH 1/2] gnu: youtube-dl: Use ffmpeg and pycryptodome
Date: Sat, 14 Mar 2020 15:42:20 +0100
* gnu/packages/video.scm (youtube-dl)[arguments]: Add phase
wrap-executable.
[inputs]: Add ffmpeg.
[propagated-inputs]: Add python-pycryptodome.
---
 gnu/packages/video.scm | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 074a1235a3..4ca037532f 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -37,6 +37,7 @@
 ;;; Copyright © 2019 Riku Viitanen <riku.viitanen <at> protonmail.com>
 ;;; Copyright © 2020 Oleg Pykhalov <go.wigust <at> gmail.com>
 ;;; Copyright © 2020 Josh Holland <josh <at> inv.alid.pw>
+;;; Copyright © 2020 Brice Waegeneire <brice <at> waegenei.re>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1580,7 +1581,19 @@ To load this plugin, specify the following option when starting mpv:
                            (string-append "'" prefix "/etc/"))
                           (("'share/")
                            (string-append "'" prefix "/share/")))
-                        #t))))))
+                        #t)))
+                  (add-after 'install 'wrap-executable
+                    (lambda* (#:key inputs outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out"))
+                            (ffmpeg (assoc-ref inputs "ffmpeg")))
+                        (wrap-program (string-append out "/bin/youtube-dl")
+                          `("PATH" ":" prefix
+                            ,(list (string-append ffmpeg "/bin")))))
+                      #t)))))
+    (inputs
+     `(("ffmpeg" ,ffmpeg)))
+    (propagated-inputs
+     `(("python-pycryptodome" ,python-pycryptodome)))
     (synopsis "Download videos from YouTube.com and other sites")
     (description
      "Youtube-dl is a small command-line program to download videos from
-- 
2.25.0





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Message #11 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: guix-patches <at> gnu.org
Subject: [PATCH 2/2] gnu: youtube-dl: Add zsh completion
Date: Sat, 14 Mar 2020 15:42:21 +0100
* gnu/packages/video.scm (youtube-dl)[arguments]: Add phase
install-completion.
---
 gnu/packages/video.scm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 4ca037532f..38f376c7e4 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -1582,6 +1582,15 @@ To load this plugin, specify the following option when starting mpv:
                           (("'share/")
                            (string-append "'" prefix "/share/")))
                         #t)))
+                  (add-after 'install 'install-completion
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let* ((out (assoc-ref outputs "out"))
+                             (zsh (string-append out
+                                                 "/share/zsh/site-functions")))
+                        (mkdir-p zsh)
+                        (copy-file "youtube-dl.zsh"
+                                   (string-append zsh "/_youtube-dl"))
+                        #t)))
                   (add-after 'install 'wrap-executable
                     (lambda* (#:key inputs outputs #:allow-other-keys)
                       (let ((out (assoc-ref outputs "out"))
-- 
2.25.0





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Message #14 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Leo Famulari <leo <at> famulari.name>
To: Brice Waegeneire <brice <at> waegenei.re>
Cc: 40060 <at> debbugs.gnu.org
Subject: Re: [bug#40060] [PATCH 1/2] gnu: youtube-dl: Use ffmpeg and
 pycryptodome
Date: Sat, 14 Mar 2020 13:21:14 -0400
On Sat, Mar 14, 2020 at 03:42:20PM +0100, Brice Waegeneire wrote:
> * gnu/packages/video.scm (youtube-dl)[arguments]: Add phase
> wrap-executable.
> [inputs]: Add ffmpeg.
> [propagated-inputs]: Add python-pycryptodome.

What do these added dependencies do?




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Message #17 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: Leo Famulari <leo <at> famulari.name>
Cc: 40060 <at> debbugs.gnu.org,
 Guix-patches <guix-patches-bounces+brice+lists=waegenei.re <at> gnu.org>
Subject: Re: [bug#40060] [PATCH 1/2] gnu: youtube-dl: Use ffmpeg and
 pycryptodome
Date: Sat, 14 Mar 2020 17:39:50 +0000
On 2020-03-14 17:21, Leo Famulari wrote:
> On Sat, Mar 14, 2020 at 03:42:20PM +0100, Brice Waegeneire wrote:
>> * gnu/packages/video.scm (youtube-dl)[arguments]: Add phase
>> wrap-executable.
>> [inputs]: Add ffmpeg.
>> [propagated-inputs]: Add python-pycryptodome.
> 
> What do these added dependencies do?

I should have written this in the cover-letter, my bad.
pycryptodome is needed for the hlsative downloader, ffmpeg adds the 
ability to merge video and audio files downloaded separately by 
youtube-dl and removes the following warning:
WARNING: You have requested multiple formats but ffmpeg or avconv are 
not installed. The formats won't be merged.

Have a look in the NixOS derivation for more information on 
dependencies:
https://github.com/NixOS/nixpkgs/blob/86a085cd4690d497c487d5090fabb0bbf093e7a2/pkgs/tools/misc/youtube-dl/default.nix#L33




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Message #20 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Leo Famulari <leo <at> famulari.name>
To: Brice Waegeneire <brice <at> waegenei.re>
Cc: 40060 <at> debbugs.gnu.org
Subject: Re: [bug#40060] [PATCH 1/2] gnu: youtube-dl: Use ffmpeg and
 pycryptodome
Date: Sat, 14 Mar 2020 13:47:37 -0400
On Sat, Mar 14, 2020 at 05:39:50PM +0000, Brice Waegeneire wrote:
> I should have written this in the cover-letter, my bad.
> pycryptodome is needed for the hlsative downloader, ffmpeg adds the ability
> to merge video and audio files downloaded separately by youtube-dl and
> removes the following warning:
> WARNING: You have requested multiple formats but ffmpeg or avconv are not
> installed. The formats won't be merged.

What is hlsative?

I guess that for FFmpeg, it looks in $PATH? This has always worked for
me. But I think it's a good idea to bind them together.




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Message #23 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <me <at> tobias.gr>
To: Leo Famulari <leo <at> famulari.name>, 40060 <at> debbugs.gnu.org
Subject: Re: [bug#40060] [PATCH 1/2] gnu: youtube-dl: Use ffmpeg and
 pycryptodome
Date: Sat, 14 Mar 2020 23:17:42 +0100
[Message part 1 (text/plain, inline)]
Hullo Brice,

Thanks for the patch!

Brice Waegeneire 写道:
> I should have written this in the cover-letter, my bad.
> pycryptodome is needed for the hlsative downloader, ffmpeg adds 
> the
> ability to merge video and audio files downloaded separately by
> youtube-dl and removes the following warning:
> WARNING: You have requested multiple formats but ffmpeg or 
> avconv are
> not installed. The formats won't be merged.

This message is one of the best I've seen.  It clearly explains to 
the user what's (not) going to happen, and what they can do to 
change that *if* they want to.  Hence I think adding ffmpeg as a 
hard dependency is incorrect.

(I'd also oppose a youtube-dl-full variant, by the way.  Packages 
aren't the right place for this; profiles are.)

Does youtube-dl print a similarly clear message when pycryptodome 
is needed but missing?  If not, that addition LGTM with a

 ("pycryptodome" ,pycryptodome) ; for the hlsnative downloader

comment.  Cover letters & commit messages age badly.

Kind regards,

T G-R
[signature.asc (application/pgp-signature, inline)]

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Message #26 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <me <at> tobias.gr>
To: Leo Famulari <leo <at> famulari.name>
Cc: 40060 <at> debbugs.gnu.org, Brice Waegeneire <brice <at> waegenei.re>
Subject: Re: [bug#40060] [PATCH 1/2] gnu: youtube-dl: Use ffmpeg and
 pycryptodome
Date: Sat, 14 Mar 2020 23:20:32 +0100
[Message part 1 (text/plain, inline)]
Leo Famulari 写道:
> What is hlsative?

hlsnative, it's a ‘limited [HLS] implementation that does not 
require ffmpeg.’[0]

Kind regards,

T G-R

[0]: 
https://github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/downloader/hls.py#L25
[signature.asc (application/pgp-signature, inline)]

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Message #29 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Leo Famulari <leo <at> famulari.name>
To: Tobias Geerinckx-Rice <me <at> tobias.gr>
Cc: 40060 <at> debbugs.gnu.org
Subject: Re: [bug#40060] [PATCH 1/2] gnu: youtube-dl: Use ffmpeg and
 pycryptodome
Date: Sun, 15 Mar 2020 13:25:13 -0400
On Sat, Mar 14, 2020 at 11:17:42PM +0100, Tobias Geerinckx-Rice wrote:
> Brice Waegeneire 写道:
> > I should have written this in the cover-letter, my bad.
> > pycryptodome is needed for the hlsative downloader, ffmpeg adds the
> > ability to merge video and audio files downloaded separately by
> > youtube-dl and removes the following warning:
> > WARNING: You have requested multiple formats but ffmpeg or avconv are
> > not installed. The formats won't be merged.
> 
> This message is one of the best I've seen.  It clearly explains to the user
> what's (not) going to happen, and what they can do to change that *if* they
> want to.  Hence I think adding ffmpeg as a hard dependency is incorrect.

I see your point of view, and I also have FFmpeg installed manually
because I use it frequently in my work. I guess it depends on how many
people are experiencing the issue that Brice is having.




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Message #32 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: Tobias Geerinckx-Rice <me <at> tobias.gr>, Tobias Geerinckx-Rice via
 Guix-patches <guix-patches <at> gnu.org>
Subject: Re: [bug#40060] [PATCH 1/2] gnu: youtube-dl: Use ffmpeg and
 pycryptodome
Date: Tue, 17 Mar 2020 09:06:57 +0000
On 2020-03-14 22:17, Tobias Geerinckx-Rice via Guix-patches via wrote:
> Brice Waegeneire 写道:
>> WARNING: You have requested multiple formats but ffmpeg or avconv are
>> not installed. The formats won't be merged.

NOTE: This message appear when using a format option like this
='bestvideo[height<=320]+bestaudio'=.

> This message is one of the best I've seen.  It clearly explains to the
> user what's (not) going to happen, and what they can do to change that
> *if* they want to.  Hence I think adding ffmpeg as a hard dependency
> is incorrect.

What about this one?

#+begin_src sh
$ youtue-dl https://www.youtube.com/watch\?v\=dp8PhLsUcFE
[youtube] dp8PhLsUcFE: Downloading webpage
[youtube] dp8PhLsUcFE: Downloading m3u8 information
[youtube] dp8PhLsUcFE: Downloading MPD manifest
[download] Destination: Bloomberg Global Financial News-dp8PhLsUcFE.mp4
ERROR: m3u8 download detected but ffmpeg or avconv could not be found. 
Please install one.
#+end_src

When downloading a live stream from youtube.com (and proabably others),
~youtube-dl~ needs ffmpeg to download the HLS stream – I tried with just
~pycryptodome~ and it doesn't work.

> (I'd also oppose a youtube-dl-full variant, by the way.  Packages
> aren't the right place for this; profiles are.)
> 
> Does youtube-dl print a similarly clear message when pycryptodome is
> needed but missing?  If not, that addition LGTM with a
> 
>  ("pycryptodome" ,pycryptodome) ; for the hlsnative downloader

#+begin_src sh
$ youtube-dl http://www.ivi.ru/watch/146500
[ivi] 146500: Downloading video JSON
ERROR: pycryptodomex not found. Please install it.
#+end_src

#+begin_src python
                self.report_error('pycrypto not found. Please install 
it.')
#+end_src

I digged a little deeper about this dependency, ~pycryptodome~
replace the deprecated ~pycrypto~ library with the same name space
(=Crypto=) while ~pycryptodomex~ uses it's own name space (=Cryptodome=) 
to
provide similar functionality.

#+begin_src python
            self.report_warning(
                'hlsnative has detected features it does not support, '
                'extraction will be delegated to ffmpeg')
#+end_src

So I'm not sure if adding ~pycryptodome(x)~ is that useful after all.
Especially if it can't totally replace ~ffmpeg~ when donating HLS 
streams.

> comment.  Cover letters & commit messages age badly.

Noted.

I think ~ffmpeg~ should be an input of ~youtube-dl~ while 
~pycrytodome(x)~
don't need to since most (except the ivi downloader it seems) 
functionality
can be achieved with ~ffmpeg~. WDYT?




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Message #35 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: guix-patches <at> gnu.org
Subject: [PATCH v2 0/2] youtube-dl add ffmpeg and zsh-completion
Date: Mon, 23 Mar 2020 18:15:00 +0100
Remove pycryptodome since ffmpeg is enought for accessing
HLS streams.

Brice Waegeneire (2):
  gnu: youtube-dl: Add 'ffmpeg' as input.
  gnu: youtube-dl: Add zsh completion.

 gnu/packages/video.scm | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)


base-commit: d3e7282ec35d87842e8143f0230e27fd5ec5e74d
-- 
2.25.1





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Message #38 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: guix-patches <at> gnu.org
Subject: [PATCH v2 2/2] gnu: youtube-dl: Add zsh completion.
Date: Mon, 23 Mar 2020 18:15:02 +0100
* gnu/packages/video.scm (youtube-dl)[arguments]: Add phase
install-completion.
---
 gnu/packages/video.scm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 3b64c435b7..cb575a7375 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -1673,6 +1673,15 @@ To load this plugin, specify the following option when starting mpv:
                           (("'share/")
                            (string-append "'" prefix "/share/")))
                         #t)))
+                  (add-after 'install 'install-completion
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let* ((out (assoc-ref outputs "out"))
+                             (zsh (string-append out
+                                                 "/share/zsh/site-functions")))
+                        (mkdir-p zsh)
+                        (copy-file "youtube-dl.zsh"
+                                   (string-append zsh "/_youtube-dl"))
+                        #t)))
                   (add-after 'install 'wrap-executable
                     (lambda* (#:key inputs outputs #:allow-other-keys)
                       (let ((out (assoc-ref outputs "out"))
-- 
2.25.1





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Message #41 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: guix-patches <at> gnu.org
Subject: [PATCH v2 1/2] gnu: youtube-dl: Add 'ffmpeg' as input.
Date: Mon, 23 Mar 2020 18:15:01 +0100
* gnu/packages/video.scm (youtube-dl)[arguments]: Add phase
wrap-executable.
[inputs]: Add ffmpeg.
---
 gnu/packages/video.scm | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 38e9d36307..3b64c435b7 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -37,6 +37,7 @@
 ;;; Copyright © 2019 Riku Viitanen <riku.viitanen <at> protonmail.com>
 ;;; Copyright © 2020 Oleg Pykhalov <go.wigust <at> gmail.com>
 ;;; Copyright © 2020 Josh Holland <josh <at> inv.alid.pw>
+;;; Copyright © 2020 Brice Waegeneire <brice <at> waegenei.re>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1671,7 +1672,17 @@ To load this plugin, specify the following option when starting mpv:
                            (string-append "'" prefix "/etc/"))
                           (("'share/")
                            (string-append "'" prefix "/share/")))
-                        #t))))))
+                        #t)))
+                  (add-after 'install 'wrap-executable
+                    (lambda* (#:key inputs outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out"))
+                            (ffmpeg (assoc-ref inputs "ffmpeg")))
+                        (wrap-program (string-append out "/bin/youtube-dl")
+                          `("PATH" ":" prefix
+                            ,(list (string-append ffmpeg "/bin")))))
+                      #t)))))
+    (inputs
+     `(("ffmpeg" ,ffmpeg)))
     (synopsis "Download videos from YouTube.com and other sites")
     (description
      "Youtube-dl is a small command-line program to download videos from
-- 
2.25.1





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Message #44 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Mathieu Othacehe <m.othacehe <at> gmail.com>
To: guix-patches <at> gnu.org
Cc: 40060-done <at> debbugs.gnu.org
Subject: Re: [bug#40060] [PATCH v2 0/2] youtube-dl add ffmpeg and
 zsh-completion
Date: Mon, 23 Mar 2020 20:28:11 +0100
Hello Brice,

> Remove pycryptodome since ffmpeg is enought for accessing
> HLS streams.

I could do not find any reference to pycryptodome, but pushed the serie
as is LTGM.

Thanks,

Mathieu




Reply sent to Mathieu Othacehe <m.othacehe <at> gmail.com>:
You have taken responsibility. (Mon, 23 Mar 2020 19:29:02 GMT) Full text and rfc822 format available.

Notification sent to Brice Waegeneire <brice <at> waegenei.re>:
bug acknowledged by developer. (Mon, 23 Mar 2020 19:29:02 GMT) Full text and rfc822 format available.

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Message #52 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: Mathieu Othacehe <m.othacehe <at> gmail.com>
Cc: 40060 <at> debbugs.gnu.org, me <at> tobias.gr, leo <at> famulari.name
Subject: Re: [bug#40060] [PATCH v2 0/2] youtube-dl add ffmpeg and
 zsh-completion
Date: Mon, 23 Mar 2020 20:23:27 +0000
On 2020-03-23 19:28, Mathieu Othacehe wrote:
>> Remove pycryptodome since ffmpeg is enought for accessing
>> HLS streams.
> 
> I could do not find any reference to pycryptodome, but pushed the serie
> as is LTGM.

The first revision of this patch added pycryptodome as input, this 
version
doesn't. BTW Tobias and Leo were against adding ffmpeg to youtube-dl.




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Message #55 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Mathieu Othacehe <m.othacehe <at> gmail.com>
To: Brice Waegeneire <brice <at> waegenei.re>
Cc: 40060 <at> debbugs.gnu.org, me <at> tobias.gr, leo <at> famulari.name
Subject: Re: [bug#40060] [PATCH v2 0/2] youtube-dl add ffmpeg and
 zsh-completion
Date: Mon, 23 Mar 2020 21:43:43 +0100
> The first revision of this patch added pycryptodome as input, this version
> doesn't. BTW Tobias and Leo were against adding ffmpeg to youtube-dl.

Oops didn't see the small "v2". Well I'll revert this one until this is
clarified.

Sorry about that,

Mathieu




Did not alter fixed versions and reopened. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Mon, 30 Mar 2020 15:33:02 GMT) Full text and rfc822 format available.

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Message #60 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Brice Waegeneire <brice <at> waegenei.re>
To: guix-patches <at> gnu.org
Subject: [PATCH v3] gnu: youtube-dl: Add 'ffmpeg' as input.
Date: Wed,  1 Apr 2020 15:01:52 +0200
* gnu/packages/video.scm (youtube-dl)[arguments]: Add phase
wrap-executable.
[inputs]: Add ffmpeg.
---

This version is rebased on top of master and the commit adding zsh completion
has been removed from the patch set since it has already been merged.

 gnu/packages/video.scm | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 03796fd770..6ad46fb9fe 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -1680,7 +1680,17 @@ To load this plugin, specify the following option when starting mpv:
                         (mkdir-p zsh)
                         (copy-file "youtube-dl.zsh"
                                    (string-append zsh "/_youtube-dl"))
-                        #t))))))
+                        #t)))
+                 (add-after 'install 'wrap-executable
+                    (lambda* (#:key inputs outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out"))
+                            (ffmpeg (assoc-ref inputs "ffmpeg")))
+                        (wrap-program (string-append out "/bin/youtube-dl")
+                          `("PATH" ":" prefix
+                            ,(list (string-append ffmpeg "/bin")))))
+                      #t)))))
+    (inputs
+     `(("ffmpeg" ,ffmpeg)))
     (synopsis "Download videos from YouTube.com and other sites")
     (description
      "Youtube-dl is a small command-line program to download videos from
-- 
2.25.1





Information forwarded to guix-patches <at> gnu.org:
bug#40060; Package guix-patches. (Wed, 01 Apr 2020 13:41:01 GMT) Full text and rfc822 format available.

Message #63 received at 40060 <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <me <at> tobias.gr>
To: 40060 <at> debbugs.gnu.org
Subject: Re: [bug#40060] [PATCH v3] gnu: youtube-dl: Add 'ffmpeg' as input.
Date: Wed, 01 Apr 2020 15:40:37 +0200
[Message part 1 (text/plain, inline)]
Brice,

Sorry for the delay!  However, I don't really know what more to 
say.

I'm still against pulling in ffmpeg for everyone, for the reason 
given in my last[0] mail.  Keep in mind:

 $ guix size youtube-dl | tail -n1
 total: 184.0 MiB

 $ guix size youtube-dl ffmpeg | tail -n1
 total: 804.7 MiB

If youtube-dl silently failed or produced worse video without 
ffmpeg, things'd clearly be different.  Same if it disabled 
features at build time if ffmpeg is not found.  I don't think it 
does…

One could argue that those who really don't need or want ffmpeg 
can simply customise their youtube-dl package because Guix is 
awesome.  Both true!  But it's the asymmetry between opt-in

 $ guix install youtube-dl
 $ youtube-dl https://hotvidz.gnu/10h-of-rms-dancing.oggv
 Note: you'll want to install ffmpeg to see more glorious detail
 $ guix install ffmpeg
 …

and opt-out, where the user has to learn about 
substitute-keyword-arguments & write a custom package just to 
avoid pulling in ffmpeg, that bugs me.

That's just me.  If you convince enough people to merge this I 
certainly won't mind!

Kind regards,

T G-R

[0]: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=40060#23
[signature.asc (application/pgp-signature, inline)]

bug closed, send any further explanations to 40060 <at> debbugs.gnu.org and Brice Waegeneire <brice <at> waegenei.re> Request was from Brice Waegeneire <brice <at> waegenei.re> to control <at> debbugs.gnu.org. (Wed, 01 Apr 2020 14:06:01 GMT) Full text and rfc822 format available.

bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Thu, 30 Apr 2020 11:24:05 GMT) Full text and rfc822 format available.

This bug report was last modified 3 years and 333 days ago.

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