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audioconvert: fix unaligned writes

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Use 16 bits writes for 16 bits samples or else we might be doing
unlaigned writes.

See #3572
This commit is contained in:
Wim Taymans 2023-10-15 19:10:45 +02:00
parent 9e547753ad
commit f3942fca29
1 changed files with 8 additions and 7 deletions
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15
spa/plugins/audioconvert/fmt-ops-sse2.c
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@ -1143,14 +1143,15 @@ conv_f32d_to_s16_2s_sse2(void *data, void * SPA_RESTRICT dst, const void * SPA_R
t[1] = _mm_packs_epi32(t[1], t[1]);
out[0] = _mm_unpacklo_epi16(t[0], t[1]);
out[1] = _mm_shuffle_epi32(out[0], _MM_SHUFFLE(0, 3, 2, 1));
out[2] = _mm_shuffle_epi32(out[0], _MM_SHUFFLE(1, 0, 3, 2));
out[3] = _mm_shuffle_epi32(out[0], _MM_SHUFFLE(2, 1, 0, 3));
*((int32_t*)(d + 0*n_channels)) = _mm_cvtsi128_si32(out[0]);
*((int32_t*)(d + 1*n_channels)) = _mm_cvtsi128_si32(out[1]);
*((int32_t*)(d + 2*n_channels)) = _mm_cvtsi128_si32(out[2]);
*((int32_t*)(d + 3*n_channels)) = _mm_cvtsi128_si32(out[3]);
d[0*n_channels+0] = _mm_extract_epi16(out[0], 0);
d[0*n_channels+1] = _mm_extract_epi16(out[0], 1);
d[1*n_channels+0] = _mm_extract_epi16(out[0], 2);
d[1*n_channels+1] = _mm_extract_epi16(out[0], 3);
d[2*n_channels+0] = _mm_extract_epi16(out[0], 4);
d[2*n_channels+1] = _mm_extract_epi16(out[0], 5);
d[3*n_channels+0] = _mm_extract_epi16(out[0], 6);
d[3*n_channels+1] = _mm_extract_epi16(out[0], 7);
d += 4*n_channels;
}
for(; n < n_samples; n++) {