pipewire/spa
Roman Lebedev 2a035ac49e
audioconvert: introduce s25_32 type, f32<->s25 cast is lossless
The largest integer that 32-bit floating point can exactly represent
is actually `(2^24)-1`, not`(2^23)-1` like the code assumes.
This means, whenever we use s24 as an intermediate step
to go between f32 and s32, we lose a bit of precision.

s25_32 is really a i32 with highest byte always being a sign byte.

Printing was done by adding
```
for(int e = 0; e != 13; ++e)
fprintf(stderr, "%16.32e,", ((float*)m1)[e]);
```
to `compare_mem`. I don't like how these tests work.

https://godbolt.org/z/abe94sedT
2024-06-27 19:41:20 +03:00
..
examples
include
include-private/spa-private
plugins audioconvert: introduce s25_32 type, f32<->s25 cast is lossless 2024-06-27 19:41:20 +03:00
tests
tools
meson.build