pkrumins
Can't require node-video module
I'm running on Mac OS X 10.6, and i'm trying to create a small test server with node.js to encode video receiving frames from a client, but when I require the video module with the code "var myVideo = require("video")" it throws the error ("Can't find module 'video').... i've installed node-video with npm, installed libtheora and configured the build with "node-waf configure build"... I've tried to create even the NODE_PATH env, but it thorws another error (Can't load shered library)..
What's wrong??
@Rayzen which library can't be found? Full output would be nice. Technically you don't to hand waf compile the module since it should be done for you through npm. Is libtheora in your library path? Doing node-waf did successfully compile the module?
Here is what i've done:
*downloaded source file of libogg, libvorbis and libtheora and then I ran for each of them $ ./configure $ make $ sudo make install
then I've reinstalled the video module this way $ npm install video
which output is
"npm http GET https://registry.npmjs.org/video npm http 304 https://registry.npmjs.org/video
[email protected] install /Users/path/to/my/project/node_modules/video node-waf configure build
Checking for program g++ or c++ : /usr/bin/g++
Checking for program cpp : /usr/bin/cpp
Checking for program ar : /usr/bin/ar
Checking for program ranlib : /usr/bin/ranlib
Checking for g++ : ok
Checking for node path : not found
Checking for node prefix : ok /usr/local
Checking for library ogg : yes
Checking for library theoradec : yes
Checking for library theoraenc : yes
'configure' finished successfully (0.239s)
Waf: Entering directory /Users/path/to/myt/project/node_modules/video/build' [1/8] cxx: src/common.cpp -> build/Release/src/common_1.o [2/8] cxx: src/video_encoder.cpp -> build/Release/src/video_encoder_1.o [3/8] cxx: src/fixed_video.cpp -> build/Release/src/fixed_video_1.o [4/8] cxx: src/stacked_video.cpp -> build/Release/src/stacked_video_1.o [5/8] cxx: src/async_stacked_video.cpp -> build/Release/src/async_stacked_video_1.o ../src/async_stacked_video.cpp: In static member function ‘static void AsyncStackedVideo::EIO_Encode(eio_req*)’: ../src/async_stacked_video.cpp:423: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘size_t’ ../src/async_stacked_video.cpp:453: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘size_t’ [6/8] cxx: src/utils.cpp -> build/Release/src/utils_1.o [7/8] cxx: src/module.cpp -> build/Release/src/module_1.o [8/8] cxx_link: build/Release/src/common_1.o build/Release/src/video_encoder_1.o build/Release/src/fixed_video_1.o build/Release/src/stacked_video_1.o build/Release/src/async_stacked_video_1.o build/Release/src/utils_1.o build/Release/src/module_1.o -> build/Release/video.node ld: warning: directory '/lib' following -L not found ld: warning: directory '/usr/local/libogg/lib' following -L not found ld: warning: directory '/usr/local/pkg/libogg/lib' following -L not found ld: warning: directory '/usr/local/pkg/libogg-1.2.0/lib' following -L not found ld: warning: directory '/usr/local/libtheora/lib' following -L not found ld: warning: directory '/usr/local/pkg/libtheora/lib' following -L not found ld: warning: directory '/usr/local/pkg/libtheora-1.1.1/lib' following -L not found Waf: Leaving directory/Users/path/to/myt/project/node_modules/video/build'
'build' finished successfully (1.710s)
[email protected] ./node_modules/video
"
Then I noticed that the main field in the package.json is wrong, because it values 'video' and doesn't point to any app.node, and corrected it with the right path (build/Release/video.node) and then when I start the server it gives me this output:
$ node index.js
node.js:201
throw e; // process.nextTick error, or 'error' event on first tick
^
Error: Unable to load shared library /Users/path/to/my/project/node_modules/video/build/Release/video.node
at Object..node (module.js:472:11)
at Module.load (module.js:348:31)
at Function._load (module.js:308:12)
at Module.require (module.js:354:17)
at require (module.js:370:17)
at Object.
On my arch linux fixing the package.json make the module load correctly...
I think the problem is during the linking phase, when it print " ld: warning: directory '/lib' following -L not found " (and so for other directories as you can see) but i really don't know why it does so..
a friend of mine, running OS X 10.7 has done the same procedure, gets the same output messages, but on his mac all works fine...
Ok, i found it.. it was a bug of node.js... i noticed that i've v 0.6.11 while my friend v 0.6.10.. so i downloaded the latest version v 0.6.17 and it doesn't launch errors anymore while starting the server...
Interesting. Glad you had it fixed. Maybe the readme.md should mention that it's aint working on v0.6.11...and/or explicitly remove this version from the engines.node property within the package.json (don't even know if it is possible with the version syntax)?
Wanna issue a pull request to @pkrumins regarding package.json's main property (i.e. video v. build/Release/video.node)?