[FFmpeg-user] ffmpeg makes some sources darker

[Andy Furniss]

Jim Worrall wrote:
>
>> On 2016 Jan 5, at 5:17 PM, Andy Furniss <adf.lists at gmail.com> wrote:
>> I snipped some other "evidence" in my last post.
>>
>> If you want to check outputs between the two ways look at the last
>> lines of the larger block of x265 [info].
>>
>> with ffmpeg the last 2 lines of both pass 1 and 2 are the same for me -
>>
>> x265 [info]: tools: rd=3 psy-rd=0.30 signhide tmvp strong-intra-smoothing
>> x265 [info]: tools: deblock sao
>>
>> with x265-params they are different and refer to reading/writing stats.
>>
>> x265 [info]: tools: rd=2 psy-rd=0.30 early-skip signhide tmvp fast-intra
>> x265 [info]: tools: strong-intra-smoothing deblock sao stats-write
>>
>>
>> x265 [info]: tools: rd=3 psy-rd=0.30 signhide tmvp strong-intra-smoothing
>> x265 [info]: tools: deblock sao stats-read
>>
>
> OK, something’s wrong with my setup then.  When I put pass into
> x265-params, I get the same thing in both passes, with stats-write
> both times:
>
> x265 [info]: tools: rd=2 psy-rd=0.30 early-skip signhide tmvp fast-intra
> x265 [info]: tools: strong-intra-smoothing deblock stats-write
>
> x265 [info]: tools: rd=2 psy-rd=0.30 early-skip signhide tmvp fast-intra
> x265 [info]: tools: strong-intra-smoothing deblock stats-write
>
> What could be going on?

I would double check your command line(s) - if they seem OK paste 
it/them along with the full output(s).