[FFmpeg-devel] [PATCH] ac3enc: fix bug in stereo rematrixing decision.

[Måns Rullgård]

Justin Ruggles <justin.ruggles at gmail.com> writes:

> On 02/15/2011 07:39 PM, M?ns Rullg?rd wrote:
>
>> Justin Ruggles <justin.ruggles at gmail.com> writes:
>> 
>>> The rematrixing strategy reuse flags are not reset between frames, so they
>>> need to be initialized for all blocks, not just block 0.
>>> ---
>>> We either have to check for !block->new_rematrixing_strategy or blk.  I can't remove both. Here is an alternative patch.
>> 
>> Yes, you can.  Writing 1 to something that is already 1 is harmless.
>
> but dereferencing a NULL pointer (block0) is not harmless.

Right, it's null there.  Then I'd prefer checking blk, it's simpler.

-- 
M?ns Rullg?rd
mans at mansr.com