mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-03 09:01:54 -05:00
938f2b123e
Make dither noise as a value between -0.5 and 0.5 and add this to the scaled samples. For this, we first need to do the scaling and then the CLAMP to the target depth. This optimizes to the same code but allows us to avoid under and overflows when we add the dither noise. Add more dithering methods. Expose a dither.method property on audioconvert. Disable dither when the target depth > 16.
428 lines
13 KiB
C
428 lines
13 KiB
C
/* Spa
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*
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* Copyright © 2018 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <math.h>
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#include <spa/support/cpu.h>
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#include <spa/utils/defs.h>
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#include <spa/param/audio/format-utils.h>
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#include "fmt-ops.h"
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#define DITHER_SIZE (1<<10)
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typedef void (*convert_func_t) (struct convert *conv, void * SPA_RESTRICT dst[],
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const void * SPA_RESTRICT src[], uint32_t n_samples);
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struct conv_info {
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uint32_t src_fmt;
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uint32_t dst_fmt;
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uint32_t n_channels;
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convert_func_t process;
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const char *name;
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uint32_t cpu_flags;
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#define CONV_DITHER (1<<0)
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#define CONV_SHAPE (1<<1)
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uint32_t dither_flags;
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};
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#define MAKE(fmt1,fmt2,chan,func,...) \
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{ SPA_AUDIO_FORMAT_ ##fmt1, SPA_AUDIO_FORMAT_ ##fmt2, chan, func, #func , __VA_ARGS__ }
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static struct conv_info conv_table[] =
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{
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/* to f32 */
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MAKE(U8, F32, 0, conv_u8_to_f32_c),
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MAKE(U8, F32, 0, conv_u8_to_f32_c),
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MAKE(U8P, F32P, 0, conv_u8d_to_f32d_c),
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MAKE(U8, F32P, 0, conv_u8_to_f32d_c),
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MAKE(U8P, F32, 0, conv_u8d_to_f32_c),
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MAKE(S8, F32, 0, conv_s8_to_f32_c),
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MAKE(S8P, F32P, 0, conv_s8d_to_f32d_c),
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MAKE(S8, F32P, 0, conv_s8_to_f32d_c),
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MAKE(S8P, F32, 0, conv_s8d_to_f32_c),
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MAKE(ALAW, F32P, 0, conv_alaw_to_f32d_c),
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MAKE(ULAW, F32P, 0, conv_ulaw_to_f32d_c),
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MAKE(U16, F32, 0, conv_u16_to_f32_c),
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MAKE(U16, F32P, 0, conv_u16_to_f32d_c),
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MAKE(S16, F32, 0, conv_s16_to_f32_c),
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MAKE(S16P, F32P, 0, conv_s16d_to_f32d_c),
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#if defined (HAVE_NEON)
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MAKE(S16, F32P, 2, conv_s16_to_f32d_2_neon, SPA_CPU_FLAG_NEON),
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MAKE(S16, F32P, 0, conv_s16_to_f32d_neon, SPA_CPU_FLAG_NEON),
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#endif
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#if defined (HAVE_AVX2)
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MAKE(S16, F32P, 2, conv_s16_to_f32d_2_avx2, SPA_CPU_FLAG_AVX2),
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MAKE(S16, F32P, 0, conv_s16_to_f32d_avx2, SPA_CPU_FLAG_AVX2),
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#endif
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#if defined (HAVE_SSE2)
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MAKE(S16, F32P, 2, conv_s16_to_f32d_2_sse2, SPA_CPU_FLAG_SSE2),
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MAKE(S16, F32P, 0, conv_s16_to_f32d_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(S16, F32P, 0, conv_s16_to_f32d_c),
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MAKE(S16P, F32, 0, conv_s16d_to_f32_c),
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MAKE(S16_OE, F32P, 0, conv_s16s_to_f32d_c),
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MAKE(F32, F32, 0, conv_copy32_c),
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MAKE(F32P, F32P, 0, conv_copy32d_c),
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#if defined (HAVE_SSE2)
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MAKE(F32, F32P, 0, conv_deinterleave_32_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(F32, F32P, 0, conv_deinterleave_32_c),
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#if defined (HAVE_SSE2)
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MAKE(F32P, F32, 0, conv_interleave_32_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(F32P, F32, 0, conv_interleave_32_c),
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#if defined (HAVE_SSE2)
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MAKE(F32_OE, F32P, 0, conv_deinterleave_32s_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(F32_OE, F32P, 0, conv_deinterleave_32s_c),
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#if defined (HAVE_SSE2)
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MAKE(F32P, F32_OE, 0, conv_interleave_32s_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(F32P, F32_OE, 0, conv_interleave_32s_c),
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MAKE(U32, F32, 0, conv_u32_to_f32_c),
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MAKE(U32, F32P, 0, conv_u32_to_f32d_c),
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#if defined (HAVE_AVX2)
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MAKE(S32, F32P, 0, conv_s32_to_f32d_avx2, SPA_CPU_FLAG_AVX2),
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#endif
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#if defined (HAVE_SSE2)
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MAKE(S32, F32P, 0, conv_s32_to_f32d_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(S32, F32, 0, conv_s32_to_f32_c),
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MAKE(S32P, F32P, 0, conv_s32d_to_f32d_c),
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MAKE(S32, F32P, 0, conv_s32_to_f32d_c),
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MAKE(S32P, F32, 0, conv_s32d_to_f32_c),
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MAKE(S32_OE, F32P, 0, conv_s32s_to_f32d_c),
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MAKE(U24, F32, 0, conv_u24_to_f32_c),
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MAKE(U24, F32P, 0, conv_u24_to_f32d_c),
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MAKE(S24, F32, 0, conv_s24_to_f32_c),
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MAKE(S24P, F32P, 0, conv_s24d_to_f32d_c),
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#if defined (HAVE_AVX2)
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MAKE(S24, F32P, 0, conv_s24_to_f32d_avx2, SPA_CPU_FLAG_AVX2),
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#endif
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#if defined (HAVE_SSSE3)
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// MAKE(S24, F32P, 0, conv_s24_to_f32d_ssse3, SPA_CPU_FLAG_SSSE3),
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#endif
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#if defined (HAVE_SSE41)
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MAKE(S24, F32P, 0, conv_s24_to_f32d_sse41, SPA_CPU_FLAG_SSE41),
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#endif
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#if defined (HAVE_SSE2)
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MAKE(S24, F32P, 0, conv_s24_to_f32d_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(S24, F32P, 0, conv_s24_to_f32d_c),
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MAKE(S24P, F32, 0, conv_s24d_to_f32_c),
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MAKE(S24_OE, F32P, 0, conv_s24s_to_f32d_c),
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MAKE(U24_32, F32, 0, conv_u24_32_to_f32_c),
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MAKE(U24_32, F32P, 0, conv_u24_32_to_f32d_c),
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MAKE(S24_32, F32, 0, conv_s24_32_to_f32_c),
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MAKE(S24_32P, F32P, 0, conv_s24_32d_to_f32d_c),
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MAKE(S24_32, F32P, 0, conv_s24_32_to_f32d_c),
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MAKE(S24_32P, F32, 0, conv_s24_32d_to_f32_c),
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MAKE(S24_32_OE, F32P, 0, conv_s24_32s_to_f32d_c),
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MAKE(F64, F32, 0, conv_f64_to_f32_c),
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MAKE(F64P, F32P, 0, conv_f64d_to_f32d_c),
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MAKE(F64, F32P, 0, conv_f64_to_f32d_c),
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MAKE(F64P, F32, 0, conv_f64d_to_f32_c),
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MAKE(F64_OE, F32P, 0, conv_f64s_to_f32d_c),
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/* from f32 */
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MAKE(F32, U8, 0, conv_f32_to_u8_c),
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MAKE(F32P, U8P, 0, conv_f32d_to_u8d_dither_c, 0, CONV_DITHER),
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MAKE(F32P, U8P, 0, conv_f32d_to_u8d_c),
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MAKE(F32, U8P, 0, conv_f32_to_u8d_c),
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MAKE(F32P, U8, 0, conv_f32d_to_u8_dither_c, 0, CONV_DITHER),
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MAKE(F32P, U8, 0, conv_f32d_to_u8_c),
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MAKE(F32, S8, 0, conv_f32_to_s8_c),
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MAKE(F32P, S8P, 0, conv_f32d_to_s8d_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S8P, 0, conv_f32d_to_s8d_c),
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MAKE(F32, S8P, 0, conv_f32_to_s8d_c),
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MAKE(F32P, S8, 0, conv_f32d_to_s8_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S8, 0, conv_f32d_to_s8_c),
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MAKE(F32P, ALAW, 0, conv_f32d_to_alaw_c),
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MAKE(F32P, ULAW, 0, conv_f32d_to_ulaw_c),
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MAKE(F32, U16, 0, conv_f32_to_u16_c),
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MAKE(F32P, U16, 0, conv_f32d_to_u16_c),
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#if defined (HAVE_SSE2)
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MAKE(F32, S16, 0, conv_f32_to_s16_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(F32, S16, 0, conv_f32_to_s16_c),
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MAKE(F32P, S16P, 0, conv_f32d_to_s16d_dither_c, 0, CONV_DITHER),
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#if defined (HAVE_SSE2)
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MAKE(F32P, S16P, 0, conv_f32d_to_s16d_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(F32P, S16P, 0, conv_f32d_to_s16d_c),
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MAKE(F32, S16P, 0, conv_f32_to_s16d_c),
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MAKE(F32P, S16, 0, conv_f32d_to_s16_dither_c, 0, CONV_DITHER),
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#if defined (HAVE_NEON)
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MAKE(F32P, S16, 0, conv_f32d_to_s16_neon, SPA_CPU_FLAG_NEON),
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#endif
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#if defined (HAVE_AVX2)
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MAKE(F32P, S16, 4, conv_f32d_to_s16_4_avx2, SPA_CPU_FLAG_AVX2),
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MAKE(F32P, S16, 2, conv_f32d_to_s16_2_avx2, SPA_CPU_FLAG_AVX2),
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MAKE(F32P, S16, 0, conv_f32d_to_s16_avx2, SPA_CPU_FLAG_AVX2),
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#endif
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#if defined (HAVE_SSE2)
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MAKE(F32P, S16, 2, conv_f32d_to_s16_2_sse2, SPA_CPU_FLAG_SSE2),
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MAKE(F32P, S16, 0, conv_f32d_to_s16_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(F32P, S16, 0, conv_f32d_to_s16_c),
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MAKE(F32P, S16_OE, 0, conv_f32d_to_s16s_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S16_OE, 0, conv_f32d_to_s16s_c),
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MAKE(F32, U32, 0, conv_f32_to_u32_c),
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MAKE(F32P, U32, 0, conv_f32d_to_u32_c),
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MAKE(F32, S32, 0, conv_f32_to_s32_c),
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MAKE(F32P, S32P, 0, conv_f32d_to_s32d_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S32P, 0, conv_f32d_to_s32d_c),
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MAKE(F32, S32P, 0, conv_f32_to_s32d_c),
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#if defined (HAVE_SSE2)
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MAKE(F32P, S32, 0, conv_f32d_to_s32_dither_sse2, SPA_CPU_FLAG_SSE2, CONV_DITHER),
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#endif
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MAKE(F32P, S32, 0, conv_f32d_to_s32_dither_c, 0, CONV_DITHER),
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#if defined (HAVE_AVX2)
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MAKE(F32P, S32, 0, conv_f32d_to_s32_avx2, SPA_CPU_FLAG_AVX2),
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#endif
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#if defined (HAVE_SSE2)
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MAKE(F32P, S32, 0, conv_f32d_to_s32_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(F32P, S32, 0, conv_f32d_to_s32_c),
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MAKE(F32P, S32_OE, 0, conv_f32d_to_s32s_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S32_OE, 0, conv_f32d_to_s32s_c),
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MAKE(F32, U24, 0, conv_f32_to_u24_c),
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MAKE(F32P, U24, 0, conv_f32d_to_u24_c),
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MAKE(F32, S24, 0, conv_f32_to_s24_c),
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MAKE(F32P, S24P, 0, conv_f32d_to_s24d_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S24P, 0, conv_f32d_to_s24d_c),
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MAKE(F32, S24P, 0, conv_f32_to_s24d_c),
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MAKE(F32P, S24, 0, conv_f32d_to_s24_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S24, 0, conv_f32d_to_s24_c),
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MAKE(F32P, S24_OE, 0, conv_f32d_to_s24s_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S24_OE, 0, conv_f32d_to_s24s_c),
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MAKE(F32, U24_32, 0, conv_f32_to_u24_32_c),
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MAKE(F32P, U24_32, 0, conv_f32d_to_u24_32_c),
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MAKE(F32, S24_32, 0, conv_f32_to_s24_32_c),
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MAKE(F32P, S24_32P, 0, conv_f32d_to_s24_32d_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S24_32P, 0, conv_f32d_to_s24_32d_c),
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MAKE(F32, S24_32P, 0, conv_f32_to_s24_32d_c),
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MAKE(F32P, S24_32, 0, conv_f32d_to_s24_32_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S24_32, 0, conv_f32d_to_s24_32_c),
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MAKE(F32P, S24_32_OE, 0, conv_f32d_to_s24_32s_dither_c, 0, CONV_DITHER),
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MAKE(F32P, S24_32_OE, 0, conv_f32d_to_s24_32s_c),
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MAKE(F32, F64, 0, conv_f32_to_f64_c),
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MAKE(F32P, F64P, 0, conv_f32d_to_f64d_c),
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MAKE(F32, F64P, 0, conv_f32_to_f64d_c),
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MAKE(F32P, F64, 0, conv_f32d_to_f64_c),
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MAKE(F32P, F64_OE, 0, conv_f32d_to_f64s_c),
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/* u8 */
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MAKE(U8, U8, 0, conv_copy8_c),
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MAKE(U8P, U8P, 0, conv_copy8d_c),
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MAKE(U8, U8P, 0, conv_deinterleave_8_c),
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MAKE(U8P, U8, 0, conv_interleave_8_c),
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/* s8 */
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MAKE(S8, S8, 0, conv_copy8_c),
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MAKE(S8P, S8P, 0, conv_copy8d_c),
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MAKE(S8, S8P, 0, conv_deinterleave_8_c),
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MAKE(S8P, S8, 0, conv_interleave_8_c),
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/* alaw */
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MAKE(ALAW, ALAW, 0, conv_copy8_c),
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/* ulaw */
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MAKE(ULAW, ULAW, 0, conv_copy8_c),
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/* s16 */
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MAKE(S16, S16, 0, conv_copy16_c),
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MAKE(S16P, S16P, 0, conv_copy16d_c),
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MAKE(S16, S16P, 0, conv_deinterleave_16_c),
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MAKE(S16P, S16, 0, conv_interleave_16_c),
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/* s32 */
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MAKE(S32, S32, 0, conv_copy32_c),
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MAKE(S32P, S32P, 0, conv_copy32d_c),
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#if defined (HAVE_SSE2)
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MAKE(S32, S32P, 0, conv_deinterleave_32_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(S32, S32P, 0, conv_deinterleave_32_c),
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#if defined (HAVE_SSE2)
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MAKE(S32P, S32, 0, conv_interleave_32_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(S32P, S32, 0, conv_interleave_32_c),
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/* s24 */
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MAKE(S24, S24, 0, conv_copy24_c),
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MAKE(S24P, S24P, 0, conv_copy24d_c),
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MAKE(S24, S24P, 0, conv_deinterleave_24_c),
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MAKE(S24P, S24, 0, conv_interleave_24_c),
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/* s24_32 */
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MAKE(S24_32, S24_32, 0, conv_copy32_c),
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MAKE(S24_32P, S24_32P, 0, conv_copy32d_c),
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#if defined (HAVE_SSE2)
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MAKE(S24_32, S24_32P, 0, conv_deinterleave_32_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(S24_32, S24_32P, 0, conv_deinterleave_32_c),
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#if defined (HAVE_SSE2)
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MAKE(S24_32P, S24_32, 0, conv_interleave_32_sse2, SPA_CPU_FLAG_SSE2),
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#endif
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MAKE(S24_32P, S24_32, 0, conv_interleave_32_c),
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/* F64 */
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MAKE(F64, F64, 0, conv_copy64_c),
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MAKE(F64P, F64P, 0, conv_copy64d_c),
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|
MAKE(F64, F64P, 0, conv_deinterleave_64_c),
|
|
MAKE(F64P, F64, 0, conv_interleave_64_c),
|
|
};
|
|
#undef MAKE
|
|
|
|
#define MATCH_CHAN(a,b) ((a) == 0 || (a) == (b))
|
|
#define MATCH_CPU_FLAGS(a,b) ((a) == 0 || ((a) & (b)) == a)
|
|
#define MATCH_DITHER(a,b) ((a) == 0 || ((a) & (b)) == a)
|
|
|
|
static const struct conv_info *find_conv_info(uint32_t src_fmt, uint32_t dst_fmt,
|
|
uint32_t n_channels, uint32_t cpu_flags, uint32_t dither_flags)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < SPA_N_ELEMENTS(conv_table); i++) {
|
|
if (conv_table[i].src_fmt == src_fmt &&
|
|
conv_table[i].dst_fmt == dst_fmt &&
|
|
MATCH_CHAN(conv_table[i].n_channels, n_channels) &&
|
|
MATCH_CPU_FLAGS(conv_table[i].cpu_flags, cpu_flags) &&
|
|
MATCH_DITHER(conv_table[i].dither_flags, dither_flags))
|
|
return &conv_table[i];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void impl_convert_free(struct convert *conv)
|
|
{
|
|
conv->process = NULL;
|
|
free(conv->dither);
|
|
conv->dither = NULL;
|
|
}
|
|
|
|
static bool need_dither(uint32_t format)
|
|
{
|
|
switch (format) {
|
|
case SPA_AUDIO_FORMAT_U8:
|
|
case SPA_AUDIO_FORMAT_U8P:
|
|
case SPA_AUDIO_FORMAT_S8:
|
|
case SPA_AUDIO_FORMAT_S8P:
|
|
case SPA_AUDIO_FORMAT_ULAW:
|
|
case SPA_AUDIO_FORMAT_ALAW:
|
|
case SPA_AUDIO_FORMAT_S16P:
|
|
case SPA_AUDIO_FORMAT_S16:
|
|
case SPA_AUDIO_FORMAT_S16_OE:
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
int convert_init(struct convert *conv)
|
|
{
|
|
const struct conv_info *info;
|
|
uint32_t i, dither_flags;
|
|
|
|
conv->scale = 1.0f / (float)(INT32_MAX >> conv->noise);
|
|
|
|
/* disable dither if not needed */
|
|
if (!need_dither(conv->dst_fmt))
|
|
conv->method = DITHER_METHOD_NONE;
|
|
|
|
/* don't use shaped for too low rates, it moves the noise to
|
|
* audible ranges */
|
|
if (conv->method == DITHER_METHOD_SHAPED_5 && conv->rate < 32000)
|
|
conv->method = DITHER_METHOD_TRIANGULAR;
|
|
|
|
dither_flags = 0;
|
|
if (conv->method != DITHER_METHOD_NONE || conv->noise)
|
|
dither_flags |= CONV_DITHER;
|
|
if (conv->method == DITHER_METHOD_SHAPED_5)
|
|
dither_flags |= CONV_SHAPE;
|
|
|
|
info = find_conv_info(conv->src_fmt, conv->dst_fmt, conv->n_channels,
|
|
conv->cpu_flags, dither_flags);
|
|
if (info == NULL)
|
|
return -ENOTSUP;
|
|
|
|
conv->dither_size = DITHER_SIZE;
|
|
conv->dither = calloc(conv->dither_size + 16 +
|
|
FMT_OPS_MAX_ALIGN / sizeof(float), sizeof(float));
|
|
if (conv->dither == NULL)
|
|
return -errno;
|
|
|
|
for (i = 0; i < SPA_N_ELEMENTS(conv->random); i++)
|
|
conv->random[i] = random();
|
|
|
|
conv->is_passthrough = conv->src_fmt == conv->dst_fmt;
|
|
conv->cpu_flags = info->cpu_flags;
|
|
conv->process = info->process;
|
|
conv->free = impl_convert_free;
|
|
conv->func_name = info->name;
|
|
|
|
return 0;
|
|
}
|