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Tasklist

FS#48454 - [alsa-plugins] pcm_a52.c needs patch to work with current libavcodec

Attached to Project: Arch Linux
Opened by Daniel Kirchner (ekpyron) - Friday, 04 March 2016, 18:04 GMT
Last edited by Anatol Pomozov (anatolik) - Wednesday, 09 March 2016, 15:14 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Jan Alexander Steffens (heftig)
Anatol Pomozov (anatolik)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

pcm_a52.c uses avcodec_{alloc,free}_frame that were removed in recent versions of libavcodec, so /usr/lib/alsa-lib/libasound_module_pcm_a52.so can't be loaded (just try dlopen("/usr/lib/alsa-lib/libasound_module_pcm_a52.so", RTLD_NOW) to check).

I wrote to the alsa_devel mailing list explaining the issue and proposed the patch I'm attaching - it would be good to include it in the current PKGBUILD though, until upstream is updated.

I experienced the problem with alsa-plugins-1.1.0-2 in combination with ffmpeg 1:3.0-1.
   0002-replace-avcodec_alloc_fr... (0.8 KiB)
This task depends upon

Closed by  Anatol Pomozov (anatolik)
Wednesday, 09 March 2016, 15:14 GMT
Reason for closing:  Fixed
Additional comments about closing:  alsa-plugins-1.1.0-3
Comment by Anatol Pomozov (anatolik) - Saturday, 05 March 2016, 00:16 GMT
Once upstream accept it I'll pull it in.

Could you please add link to the upstream discussion?
Comment by Daniel Kirchner (ekpyron) - Sunday, 06 March 2016, 20:02 GMT
I'm still waiting for moderator approval of my message to the alsa-devel mailing list. As soon as I have a response, I'll let you know.
Comment by Anatol Pomozov (anatolik) - Tuesday, 08 March 2016, 21:54 GMT
Is there any news? Could you please send your patch to the project maintainer directly (Takashi Iwai)?
Comment by Daniel Kirchner (ekpyron) - Tuesday, 08 March 2016, 22:01 GMT
I haven't heard back from them so far and also didn't find a better way to report a bug, so I just sent a mail to Takashi Iwai directly and hope I will get a response that way, thanks for the suggestion.
Comment by Anatol Pomozov (anatolik) - Tuesday, 08 March 2016, 22:32 GMT
The patch is small and looks good to me. Taking into account that given pcm_a52 problem is a ffmpeg rebuild regression I am going to release alsa-plugins with this patch. Meanwhile please work with upstream on the fix.
Comment by Anatol Pomozov (anatolik) - Tuesday, 08 March 2016, 22:32 GMT
alsa-plugins-1.1.0-3 is in [testing], please check it.
Comment by Daniel Kirchner (ekpyron) - Tuesday, 08 March 2016, 22:54 GMT
I just tried alsa-plugins-1.1.0-3 and it works fine for me and fixes the problem.
I'll continue to try to get upstream to fix this, although they don't seem to make it particularly easy to report bugs or propose patches :-).
Comment by Daniel Kirchner (ekpyron) - Wednesday, 09 March 2016, 08:23 GMT
The patch has now been applied upstream: http://git.alsa-project.org/?p=alsa-plugins.git;a=commit;h=bc090af8b7d1a42627949a94e022f3d34f3ac5ee
Comment by Anatol Pomozov (anatolik) - Wednesday, 09 March 2016, 15:14 GMT
Thanks a lot for doing this!!

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