[FFmpeg-devel] [PATCH] tests/fate/filter-audio: convert atempo test to oneoff

[Martin Storsjö]

On Fri, 5 Jul 2024, James Almer wrote:

> On 7/5/2024 2:38 AM, Anton Khirnov wrote:
>> Quoting James Almer (2024-07-04 22:45:28)
>>> On 7/4/2024 4:04 PM, Anton Khirnov wrote:
>>>> Filter output is not bitexact.
>>>> ---
>>>> Reference file at https://up.khirnov.net/7r.pcm, please put it in
>>>> filter-reference/atempo.pcm
>>> 
>>> How did you create it? x86_32 uses x87 floats which are a lot more
>>> precise than sse ones, for example, so it's best to create a ref file
>>> using such a build.
>> 
>> Does it matter when the result is s16 anyway?
>
> Eh, who knows. Just in case i generated it on x86_32 with -cpuflags 0, and 
> uploaded it. Confirm it's fine on your end too, otherwise I'll replace it 
> with your file.

The sample you uploaded seems to work fine for me, on aarch64 with clang, 
where the test was failing before.

FWIW, re x86_32 and x87 - some compilers default to SSE2 math even for 
x86_32 targets these days, so depending on how you build, you may still 
get similar behaviour as to x86_64.

// Martin