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pw-cat: fix DSD file reading

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Now that the server asks for the right amount of samples for DSD, just
give it the right amount of samples without doing some weird scaling.

Make a method to calculate the size (stride) of one sample, which
depends on the interleave and channels of the stream.

See !2540
This commit is contained in:
Wim Taymans 2025-09-25 13:56:51 +02:00
parent f8389cbdb7
commit 19198d2982
5 changed files with 17 additions and 11 deletions
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11
src/tools/dsffile.c
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@ -175,6 +175,11 @@ exit_free:
return NULL;
}
uint32_t dsf_layout_stride(const struct dsf_layout *layout)
{
return layout->channels * SPA_ABS(layout->interleave);
}
static const uint8_t bitrev[256] = {
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
@ -200,16 +205,12 @@ dsf_file_read(struct dsf_file *f, void *data, size_t samples, const struct dsf_l
uint8_t *d = data;
int step = SPA_ABS(layout->interleave);
bool rev = layout->lsb != f->info.lsb;
size_t total, block, offset, pos, scale;
size_t total, block, offset, pos;
size_t blocksize = f->info.blocksize * f->info.channels;
block = f->offset / f->info.blocksize;
offset = block * blocksize;
pos = f->offset % f->info.blocksize;
scale = SPA_CLAMP(f->info.rate / (44100u * 64u), 1u, 4u);
samples *= step;
samples *= scale;
for (total = 0; total < samples; total++) {
uint32_t i;