[FFmpeg-user] Dynamically linking to OpenJPEG 2 library

[Aaron Boxer]

On Mon, Mar 28, 2016 at 3:49 PM, Reindl Harald <h.reindl at thelounge.net>
wrote:

>
>
> Am 28.03.2016 um 21:43 schrieb Aaron Boxer:
>
>> On Mon, Mar 28, 2016 at 2:07 PM, Reindl Harald <h.reindl at thelounge.net>
>> wrote:
>>
>>>
>>> Am 28.03.2016 um 19:54 schrieb Aaron Boxer:
>>>
>>> Thanks, I did a fresh ubuntu install, cloned FFmpeg, downloaded openjpeg
>>>> from the current release,
>>>> and it did build with no errors.
>>>>
>>>> The strange part is if I build openjpeg from the current repo master, I
>>>> get
>>>> the undefined reference errors.
>>>>
>>>> So, it looks like a bug in current openjpeg master
>>>>
>>>>
>>> most projects have a good reason to distinct between master and releases,
>>> AFAIK ffmpeg itself is the only one trusting it's master quality that
>>> much
>>> to even recommend it
>>>
>>>
>>> Yes, true. I tend to be an optimist - assuming everything is stable on
>> the
>> master
>>
>
> you should stop to be an optimist from the moment on things are not
> working as you expected before report problems somewhere and stick at
> stable for any peice of software you use
>
> trying master is only the way to go if you have any problems because
> *then* you can start be an optimist and hope this problems are solved but
> made it not in a release
>

Yes :) That would have saved me many hours of torture - debugging build
issues takes a lot of patience.

>
> that's how building of software in general works
>
> In this case, I don't think it is strictly a bug. It is more that OpenJPEG
>> changes how the symbols
>> were exported, I think
>>
>
> don't matter - when they change something in master nobody knows if that
> change is completly finished, will be reverted and so no other projects are
> supposed to change their parts of using a library premature
>
> Yes, true.