Libopus does not build

[arnaudleyder]

Hi,

Your work on building external libs onto ffmpeg with emscripten is great.
I am wondering if you tried and had success with libopus (1.1 for my case)? I am on Ubuntu 14.04 64bits (I also tried on a debian 7 machine but I have the same below error).

I can build libopus with emscripten fine (I had to fix some __malloc_hook errors first).

But when I try to build ffmpeg linking to libopus with your build script (or others for that matter) it fails.

ffmpeg config.log says:
libopus.a: error adding symbols: Archive has no index; run ranlib to add one
collect2: error: ld returned 1 exit status
ERROR: opus not found

Now I am not sure what it means exactly (running ranlib on libopus.a does not change a thing).
Have you tried building libopus with your script? Can you suggest any direction for what could be causing the above issue?

Thanks
Arnaud

[ajithreddy]

Hey arnaudleyder,
I am also trying to build libopus but stuck with __malloc_hook errors. Can you please help me in fixing them

Thanks
Ajith

[arnaudleyder]

Hi Ajith, I was never able to build libopus into ffmpeg with emscripten. After __malloc_hook errors I had other errors to fix. Libopus was not a requirement for my project so I just moved along ... To fix __malloc_hook I just followed the errors at compilation time and fixed them in the source code (I commented some code or replaced unsupported functions for my linux dist). Maybe later I will look at it again. If I found something I will fork.

[ajithreddy]

Hi Arnaud,
Thanks for the quick reply. I just commented __malloc_hook references and tried to build the libopus. I was able to run the ./configure, make, make install for libopus. But again got stuck in ./configure --enable-libopus of ffmpeg. It throwed an error :

check_pkg_config opus opus_multistream.h opus_multistream_decoder_create
ERROR: opus not found

I checked and found all the opus related files were correctly getting generated but ffmpeg was not able to find them.There was this line in 'configure' of ffmpeg which said:

enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

Since anyway all the files are correctly getting generated, so commented that check and ran the ./configure --enable-libopus. This went fine. But I think my ffmpeg.js file which got generated did not contain anything related to libopus. I am still trying hard to find a way.

Sorry for the detailed explanation. I just wanted you to know what I did and point out if there are any errors.

Thanks
Ajith