Processed: libavformat: users of new AVStream.codecpar field do not get tighter dependencies

[Debian Bug Tracking System]

Processing control commands:

> affects -1 mpv
Bug #835645 [libavformat57] libavformat: users of new AVStream.codecpar field 
do not get tighter dependencies
Added indication that 835645 affects mpv

-- 
835645: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=835645
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Bug#835645: libavformat: users of new AVStream.codecpar field do not get tighter dependencies

[James Cowgill]

Package: libavformat57
Version: 7:3.1.2-1
Severity: important
Control: affects -1 mpv

Hi,

Currently if mpv is installed with an old (3.0) version of
libavformat57, it segfaults. This appears to be due to mpv using the new
AVStream.codecpar field.

In relation to the recent ffmpeg ABI issues the timeline is:
3.1.0:
codecpar was added in the public API section of AVStream

3.1.1:
codecpar was moved to the end of AVStream as a workaround to fix (other)
applications using various private fields from AVStream. Adding the
field to the middle of the struct broke applications here.

Since it was originally added to the public API section, it seems like
it should be treated as such. Any application which uses the new
codecpar field should therefore get tighter dependencies (>= 3.1.1).

On a related note, two other fields were moved to fix ABI issues, but
since these fields are not public, I don't think anything needs updating
in the ffmpeg package to handle them.
AVFilterLink.hw_frames_ctx in 1eb43af1a0e542ad83dcbf327197785d815fc42d
AVFrame.hw_frames_ctx in 77473002898f1dce18761c8a9bca48a8fe888d2e

On implementing this, maybe you could bump these symbols to 3.1.1, which
seem to be the only legal ways of obtaining an AVStream? This does seem
a little fragile though - symbol files aren't very convenient for
handling changes to structs.
 avformat_alloc_context
 avformat_alloc_output_context2
 avformat_new_stream
 avformat_open_input

After this is done, mpv will need binNMUing.

Upstream MPV bug where this issue was originally reported:
https://github.com/mpv-player/mpv/issues/3463

FFmpeg 3.1.1 ABI bug for reference:
https://trac.ffmpeg.org/ticket/5676

Thanks,
James



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Bug#831591: ffmpeg: kodi crash

[Carl Eugen Hoyos]

Hi!

> 2016-08-24 22:55 GMT+02:00 Carl Eugen Hoyos :
> >
> > First, please understand that so far, no ABI breakage between
> > FFmpeg 3.0 and FFmpeg 3.1 was found, only the usage of
> > non-public api (that we decided to work-around for 3.1.1).
>
> OK, then assume that Kodi uses non-public API and the rebuild 
> made kodi use the latest ABI.

I don't know!
I just wanted to point out that so far, the "bugs" that were 
worked-around in FFmpeg 3.1.1 were bugs in other applications.

I still do not understand completely: Is the crash still reproducible 
after recompiling Kodi or not?

> Can I somehow find easily the places where the non-public API is used?

I don't know but...

> > Am I correct that no backtrace was provided for this issue?
>
> Yes, AFAIK.

... adding a backtrace should work fast, no?
If another developer looks at the backtrace, he might know what the 
issue is.

> > But even with a backtrace, I fear a bisect may be necessary.

Bisecting FFmpeg takes less than 20 minutes here, I know it would take 
you longer but if the backtrace does not help, this is the only way to 
find out what the issue is.
I can try helping to create a specific configure line to speed up the 
backtrace.

Carl Eugen

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Processed: libjack-jackd2-0: libjack-0.116 is not equivalent to libjack-jackd2-0

[Debian Bug Tracking System]

Processing control commands:

> clone -1 -2
Bug #835589 [libjack-jackd2-0] libjack-jackd2-0: libjack-0.116 is not 
equivalent to libjack-jackd2-0
Bug 835589 cloned as bug 835590
> reassign -2 libsoundio1
Bug #835590 [libjack-jackd2-0] libjack-jackd2-0: libjack-0.116 is not 
equivalent to libjack-jackd2-0
Bug reassigned from package 'libjack-jackd2-0' to 'libsoundio1'.
No longer marked as found in versions jackd2/1.9.10+20150825git1ed50c92~dfsg-2.
Ignoring request to alter fixed versions of bug #835590 to the same values 
previously set
> retitle -2 libsoundio1: Missing hard dependency on libjack-jackd2-0
Bug #835590 [libsoundio1] libjack-jackd2-0: libjack-0.116 is not equivalent to 
libjack-jackd2-0
Changed Bug title to 'libsoundio1: Missing hard dependency on libjack-jackd2-0' 
from 'libjack-jackd2-0: libjack-0.116 is not equivalent to libjack-jackd2-0'.
> found -2 1.0.2-1
Bug #835590 [libsoundio1] libsoundio1: Missing hard dependency on 
libjack-jackd2-0
Marked as found in versions libsoundio/1.0.2-1.

-- 
835589: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=835589
835590: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=835590
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems

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Bug#835589: libjack-jackd2-0: libjack-0.116 is not equivalent to libjack-jackd2-0

[Javier Serrano Polo]

Package: libjack-jackd2-0
Version: 1.9.10+20150825git1ed50c92~dfsg-2
Severity: wishlist
Control: clone -1 -2
Control: reassign -2 libsoundio1
Control: retitle -2 libsoundio1: Missing hard dependency on libjack-jackd2-0
Control: found -2 1.0.2-1

libsoundio1 depends on jack_set_port_rename_callback, which is provided
by libjack-jackd2-0 only. libjack-jackd2-0 should provide a symbols file
to know if libjack0 (libjack-0.116) is a valid alternative. libsoundio1
could add a manual dependency on libjack-jackd2-0 while waiting for this
symbols file.


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Re: Libdrumstick

[Ross Gammon]

On 08/27/2016 01:06 AM, James Cowgill wrote:
> Hi,
> 
> On 26/08/16 21:17, Ross Gammon wrote:
>> I am adopting vmpk, but it requires the latest libdrumstick. I have
>> updated libdrumstick, and set the distribution to experimental, because
>> I need to do some work on kmetronome & kmidimon (a little in-team
>> transition is required).
>>
>> As a SONAME bump required a change of library package name, and
>> therefore requires a trip via the NEW queue, could some kind DD take a
>> look and upload?
> 
> Thanks for taking care of this. I've uploaded it.
> 
> One thing I did notice (which can be fixed later) is that the package
> description contains some mentions of Qt4 which are now wrong since the
> package uses Qt5 now.
> 
> James
> 

Fixed - ready for eventual move to unstable.

Thanks James!



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