Jun 13, 2023, 18:56 by andreas.rheinhardt@outlook.com:

> Lynne:
>
>> +    dst->opaque    = av_buffer_ref(src->opaque);
>> +    if (!dst->opaque) {
>> +        ret = AVERROR(ENOMEM);
>> +        goto fail;
>> +    }
>>
>
> According to the doxy, opaque can be left unset (and will be given that
> it is a new field), yet av_buffer_ref(NULL) will crash. We have
> av_buffer_replace() for something like that.
>

Fixed.