[FFmpeg-devel] [PATCH] avformat/mxf: Establish register of local tags

[Tomas Härdin]

fre 2021-01-29 klockan 22:06 +0100 skrev Marton Balint:
> 
> On Thu, 28 Jan 2021, Tomas Härdin wrote:
> 
> > tor 2021-01-28 klockan 14:48 +0100 skrev Tomas Härdin:
> > > tor 2021-01-28 klockan 08:56 +0100 skrev Marton Balint:
> > > > On Thu, 28 Jan 2021, Tomas Härdin wrote:
> > > > > ons 2021-01-27 klockan 23:50 +0100 skrev Marton Balint:
> > > > > > On Wed, 27 Jan 2021, Tomas Härdin wrote:
> > > > > There's not really anything to av_assert0() on in
> > > > > mxf_lookup_local_tag(). Either way, I'm thinking replacing the return
> > > > > NULL with either
> > > > > 
> > > > >    av_log(NULL, AV_LOG_PANIC, "Tried to use unregistered local tag
> > > > > 0x%04x\n", tag);
> > > > >    abort();
> > > > > 
> > > > > or
> > > > > 
> > > > >    av_assert0(0 && "Tried to use unregistered local tag");
> > > > > 
> > > > > or maybe
> > > > > 
> > > > >    av_log(NULL, AV_LOG_PANIC, "Tried to use unregistered local tag
> > > > > 0x%04x\n", tag);
> > > > >    av_assert0(0);
> > > > > 
> > > > > to avoid explicitly calling abort()
> > > > 
> > > > I think we usually do av_assert0(0) in this case. I am not sure if the
> > > > error message is particularly useful, afterall who sees it should be a
> > > > programmer and file/line is printed by assert anyway, so a comment in the
> > > > source code before the assert makes more sense to me.
> > > 
> > > Maybe av_assert0(0 && "you forgot to add a local tag to the registry")?
> > 
> > Here's a rebased patch that does this, with a little comment also
> 
> LGTM, thanks.

Will push later today

/Tomas