Displaying 2 results from an estimated 2 matches for "flac__subframe_lpc_qlp_shift_len".
2014 Jan 24
2
PATCH for lpc_intrin_sse41.c: faster shifts
...0] >> lp_quantization)
into:
_mm_cvtsi128_si32(_mm_srli_epi64(xmm, lp_quantization));
Encoding of 24-bit .wav files with 32-bit FLAC became noticeably faster.
The new code works only if quantization <= 32, but its max value is 15 so the code always work.
(max_shiftlimit == (1 << (FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN-1)) - 1 == 15)
2014 Jan 30
0
PATCH for lpc_intrin_sse41.c: faster shifts
...> _mm_cvtsi128_si32(_mm_srli_epi64(xmm, lp_quantization));
>
> Encoding of 24-bit .wav files with 32-bit FLAC became noticeably faster.
>
>
> The new code works only if quantization <= 32, but its max value is 15 so the code always work.
> (max_shiftlimit == (1 << (FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN-1)) - 1 == 15)
I think you forgot to attach the patch for this one :-).
Erik
--
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Erik de Castro Lopo
http://www.mega-nerd.com/