Sur d’autres sites (3948)

• FFMpeg + Beanstalk : How to pass the processes to it or achieve the same result without using Beanstalk

  6 avril 2017, par Ilia Rostovtsev

  My problem is that FFMpeg and Mencoder are extremely resourceful and running even one process of it makes HTTPd slow down but multiple processes of (FFMPEG /Mencoder) just hang it (HTTPd) completely. I would like my conversions to be processed with Beanstalk, for example.

  My concrete question is : How to transfer my current jobs to Beanstalk ?

  I have a simple PHP code that triggers conversion :

  RunInBackground('convert.php', array($upload, $video_id), $log_path);

  Now what would Beanstalk correct code would look like so these processes would NOT start all at the same time if multiple videos are uploaded ?

  If you believe that for my needs is better to use something else but Beanstalk and you know how to implement it, I would be still happy to see it !

  Thanks in advance,
  Ilia

• Specifying FFMPEG in the requirements section of 'buildozer.spec' causing [libavformat/network.o] Error 1

  18 juillet 2022, par GJ78

  My question relates to how to mitigate an ffmpeg requirement listed in a buildozer.spec that is causing compile errors using buildozer.

  



  GOAL :

  



  Using buildozer to ensure FFMPEG can be embedded within a small Kivy app so i can utilise youtube_dl functionality on my android phone.

  



  THE ISSUE :
Specifying FFMPEG in the requirements section of 'buildozer.spec' causes the following error message :
  
common.mak:60 : recipe for target 'libavformat/network.o' failed
  
make : [libavformat/network.o] Error 1
  
make : Waiting for unfinished jobs...

  



  What have I done to resolve myself :
  
1. Ensured LOG LEVEL 2 is specified.

  



  


  2. Upgraded cython from Version 21 to 27. Then downgraded to 25, then 21 then 20 to see if this resolved anything. It didn't.

  


  3. In BUILDOZER.SPEC, switched between Android NDK crystax-ndk-10.3.2 and android-ndk-r16b. (Note have reverted back to Crystax 10.3.2) in my NDK PATH.

  


  4. In BUILDOZER.SPEC, changed android.api from 19 to 15 (just to see if this has any positive effects).

  


  5. executed : rm -Rf .buildozer between each compiling attempt.

  


  6. Part extract of Buildozer.log :

     



     In file included from libavformat/dump.c:37:0 :
     
libavformat/avformat.h:893:21 : note : declared here
     
 AVCodecContext codec ;
 ^
     
CC libavformat/format.o
     
CC libavformat/golomb_tab.o
     
CC libavformat/h264dec.o
     
CC libavformat/hevc.o
     
CC libavformat/http.o
     
CC libavformat/httpauth.o
     
CC libavformat/id3v1.o
     
CC libavformat/id3v2.o
     
CC libavformat/img2.o
     
CC libavformat/isom.o
     
CC libavformat/log2_tab.o
     
CC libavformat/m4vdec.o
     
CC libavformat/metadata.o
CC libavformat/mov_chan.o
     
CC libavformat/mov.o
     
CC libavformat/movenc.o
     
CC libavformat/movenccenc.o
     
CC libavformat/movenchint.o
     
CC libavformat/mpegvideodec.o
     
CC libavformat/mux.o
     
CC libavformat/network.o
     
In file included from libavformat/network.h:29:0,
     
 from libavformat/network.c:22 :
     
libavformat/os_support.h:67:32 : error : expected declaration specifiers or '...' before '(' token
     
 # define lseek(f,p,w) lseek64((f), (p), (w))
     
 ^
libavformat/os_support.h:67:37 : error : expected declaration specifiers or '...' before '(' token
     
 # define lseek(f,p,w) lseek64((f), (p), (w))
     
 ^
libavformat/os_support.h:67:42 : error : expected declaration specifiers or '...' before '(' token
     
 # define lseek(f,p,w) lseek64((f), (p), (w))
     
 ^
common.mak:60 : recipe for target 'libavformat/network.o' failed
     
make : [libavformat/network.o] Error 1
     
make : * Waiting for unfinished jobs....

  


  7. Part extract of Buildozer.spec

     



     (str) Title of your application

     



     title = myapplication

     



     (str) Package name

     



     package.name = myapp

     



     (str) Package domain (needed for android/ios packaging)

     



     package.domain = org.test

     



     (str) Source code where the main.py live

     



     source.dir = .

     



     (list) Source files to include (let empty to include all the files)

     



     source.include_exts = py,png,jpg,kv,atlas

     



     (list) List of inclusions using pattern matching

     



     source.include_patterns = assets/,images/.png

     



     (list) Source files to exclude (let empty to not exclude anything)

     



     source.exclude_exts = spec

     



     (list) List of directory to exclude (let empty to not exclude anything)

     



     source.exclude_dirs = tests, bin

     



     (list) List of exclusions using pattern matching

     



     source.exclude_patterns = license,images//.jpg

     



     (str) Application versioning (method 1)

     



     version = 0.1

     



     (str) Application versioning (method 2)

     



     version.regex = version = '"['"]

     



     version.filename = %(source.dir)s/main.py

     



     (list) Application requirements

     



     comma seperated e.g. requirements = sqlite3,kivy

     



     requirements = ffmpeg,python2,hostpython2,kivy,youtube-dl

     



     (str) Custom source folders for requirements

     



     Sets custom source for any requirements with recipes

     



     requirements.source.kivy = ../../kivy

     



     (list) Garden requirements

     



     garden_requirements =

     



     (str) Presplash of the application

     



     presplash.filename = %(source.dir)s/data/presplash.png

     



     (str) Icon of the application

     



     icon.filename = %(source.dir)s/data/icon.png

     



     (str) Supported orientation (one of landscape, portrait or all)

     



     orientation = portrait

     



     (list) List of service to declare

     



     services = NAME:ENTRYPOINT_TO_PY,NAME2:ENTRYPOINT2_TO_PY

     



     OSX Specific

     



     author = © Copyright Info

     



     change the major version of python used by the app

     



     osx.python_version = 3

     



     Kivy version to use

     



     osx.kivy_version = 1.9.1

     



     Android specific

     



     (bool) Indicate if the application should be fullscreen or not

     



     fullscreen = 0

     



     (string) Presplash background color (for new android toolchain)

     



     Supported formats are : #RRGGBB #AARRGGBB or one of the following names :

     



     red, blue, green, black, white, gray, cyan, magenta, yellow, lightgray,

     



     darkgray, grey, lightgrey, darkgrey, aqua, fuchsia, lime, maroon, navy,

     



     olive, purple, silver, teal.

     



     android.presplash_color = #FFFFFF

     



     (list) Permissions

     



     android.permissions = INTERNET

     



     (int) Android API to use

     



     android.api = 19

     



     (int) Minimum API required

     



     android.minapi = 9

     



     (int) Android SDK version to use

     



     android.sdk = 20

     



     (str) Android NDK version to use

     



     android.ndk = 10.3.2

     



     (bool) Use —private data storage (True) or —dir public storage (False)

     



     android.private_storage = True

     



     (str) Android NDK directory (if empty, it will be automatically downloaded.)

     



     android.ndk_path = /home/gjones/Downloads/crystax-ndk-10.3.2

     



     (str) Android SDK directory (if empty, it will be automatically downloaded.)

     



     android.sdk_path =

     



     (str) ANT directory (if empty, it will be automatically downloaded.)

     



     android.ant_path =

  


  8. Lastly, when I remove ffmpeg from requirements in buildozer.spec, the .APK compiles successfully and i can deploy it on to my phone with the KIVY GUI. Obviously, ffmpeg functionality is not present.

  


  



  Current Environment Specs :

  



  

  1. Running Linux Mint 17.2 as a Virtual Box VM

  


  2. Buildozer Version : 0.35dev

  


  3. Cython Version : 0.25

  


  



  Any advice would be greatly appreciated.

  



  Lastly, if there is no obvious solution via buildozer, do i need to compile ffmpeg for Android separately and somehow include this somewhere in the buildozer spec file to prevent this error message ?

  



  Thanks in advance.

  


• FFmpeg Build ERROR (/usr/bin/ln : failed to create symbolic link 'libavutil.so' : No such file or)

  11 février 2018, par BW-Eagle

  I’m not expert on building c-files.
  I want to use custom ffmpeg in my anndroid app.
  But I have the below problem when building ffmpeg package with MinGW and NDK-R14b

  After running bash command, after a while finally it reaches this error :

  /usr/bin/ln: failed to create symbolic link 'libavutil.so': No such file     or directory
  
  make: *** [libavutil/libavutil.so] Error 1
  
  make: *** Waiting for unfinished jobs....

  I know that the problem must be about to LINKER but I can’t fix it.

  Any help would be appreciated.