mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-08 13:29:59 -05:00
5effc83479
FSF addresses used in PA sources are no longer valid and rpmlint generates numerous warnings during packaging because of this. This patch changes all FSF addresses to FSF web page according to the GPL how-to: https://www.gnu.org/licenses/gpl-howto.en.html Done automatically by sed-ing through sources.
271 lines
8.2 KiB
C
271 lines
8.2 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <pulsecore/macro.h>
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#include <pulsecore/g711.h>
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#include <pulsecore/endianmacros.h>
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#include "sample-util.h"
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static void pa_volume_u8_c(uint8_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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for (channel = 0; length; length--) {
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int32_t t = pa_mult_s16_volume(*samples - 0x80, volumes[channel]);
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t = PA_CLAMP_UNLIKELY(t, -0x80, 0x7F);
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*samples++ = (uint8_t) (t + 0x80);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_alaw_c(uint8_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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for (channel = 0; length; length--) {
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int32_t t = pa_mult_s16_volume(st_alaw2linear16(*samples), volumes[channel]);
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t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
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*samples++ = (uint8_t) st_13linear2alaw((int16_t) t >> 3);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_ulaw_c(uint8_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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for (channel = 0; length; length--) {
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int32_t t = pa_mult_s16_volume(st_ulaw2linear16(*samples), volumes[channel]);
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t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
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*samples++ = (uint8_t) st_14linear2ulaw((int16_t) t >> 2);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_s16ne_c(int16_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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length /= sizeof(int16_t);
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for (channel = 0; length; length--) {
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int32_t t = pa_mult_s16_volume(*samples, volumes[channel]);
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t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
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*samples++ = (int16_t) t;
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_s16re_c(int16_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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length /= sizeof(int16_t);
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for (channel = 0; length; length--) {
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int32_t t = pa_mult_s16_volume(PA_INT16_SWAP(*samples), volumes[channel]);
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t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
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*samples++ = PA_INT16_SWAP((int16_t) t);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_float32ne_c(float *samples, const float *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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length /= sizeof(float);
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for (channel = 0; length; length--) {
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*samples++ *= volumes[channel];
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_float32re_c(float *samples, const float *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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length /= sizeof(float);
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for (channel = 0; length; length--) {
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float t;
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t = PA_READ_FLOAT32RE(samples);
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t *= volumes[channel];
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PA_WRITE_FLOAT32RE(samples++, t);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_s32ne_c(int32_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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length /= sizeof(int32_t);
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for (channel = 0; length; length--) {
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int64_t t;
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t = (int64_t)(*samples);
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t = (t * volumes[channel]) >> 16;
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t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
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*samples++ = (int32_t) t;
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_s32re_c(int32_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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length /= sizeof(int32_t);
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for (channel = 0; length; length--) {
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int64_t t;
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t = (int64_t) PA_INT32_SWAP(*samples);
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t = (t * volumes[channel]) >> 16;
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t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
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*samples++ = PA_INT32_SWAP((int32_t) t);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_s24ne_c(uint8_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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uint8_t *e;
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e = samples + length;
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for (channel = 0; samples < e; samples += 3) {
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int64_t t;
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t = (int64_t)((int32_t) (PA_READ24NE(samples) << 8));
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t = (t * volumes[channel]) >> 16;
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t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
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PA_WRITE24NE(samples, ((uint32_t) (int32_t) t) >> 8);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_s24re_c(uint8_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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uint8_t *e;
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e = samples + length;
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for (channel = 0; samples < e; samples += 3) {
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int64_t t;
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t = (int64_t)((int32_t) (PA_READ24RE(samples) << 8));
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t = (t * volumes[channel]) >> 16;
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t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
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PA_WRITE24RE(samples, ((uint32_t) (int32_t) t) >> 8);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_s24_32ne_c(uint32_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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length /= sizeof(uint32_t);
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for (channel = 0; length; length--) {
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int64_t t;
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t = (int64_t) ((int32_t) (*samples << 8));
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t = (t * volumes[channel]) >> 16;
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t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
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*samples++ = ((uint32_t) ((int32_t) t)) >> 8;
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static void pa_volume_s24_32re_c(uint32_t *samples, const int32_t *volumes, unsigned channels, unsigned length) {
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unsigned channel;
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length /= sizeof(uint32_t);
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for (channel = 0; length; length--) {
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int64_t t;
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t = (int64_t) ((int32_t) (PA_UINT32_SWAP(*samples) << 8));
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t = (t * volumes[channel]) >> 16;
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t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
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*samples++ = PA_UINT32_SWAP(((uint32_t) ((int32_t) t)) >> 8);
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if (PA_UNLIKELY(++channel >= channels))
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channel = 0;
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}
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}
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static pa_do_volume_func_t do_volume_table[] = {
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[PA_SAMPLE_U8] = (pa_do_volume_func_t) pa_volume_u8_c,
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[PA_SAMPLE_ALAW] = (pa_do_volume_func_t) pa_volume_alaw_c,
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[PA_SAMPLE_ULAW] = (pa_do_volume_func_t) pa_volume_ulaw_c,
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[PA_SAMPLE_S16NE] = (pa_do_volume_func_t) pa_volume_s16ne_c,
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[PA_SAMPLE_S16RE] = (pa_do_volume_func_t) pa_volume_s16re_c,
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[PA_SAMPLE_FLOAT32NE] = (pa_do_volume_func_t) pa_volume_float32ne_c,
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[PA_SAMPLE_FLOAT32RE] = (pa_do_volume_func_t) pa_volume_float32re_c,
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[PA_SAMPLE_S32NE] = (pa_do_volume_func_t) pa_volume_s32ne_c,
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[PA_SAMPLE_S32RE] = (pa_do_volume_func_t) pa_volume_s32re_c,
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[PA_SAMPLE_S24NE] = (pa_do_volume_func_t) pa_volume_s24ne_c,
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[PA_SAMPLE_S24RE] = (pa_do_volume_func_t) pa_volume_s24re_c,
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[PA_SAMPLE_S24_32NE] = (pa_do_volume_func_t) pa_volume_s24_32ne_c,
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[PA_SAMPLE_S24_32RE] = (pa_do_volume_func_t) pa_volume_s24_32re_c
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};
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pa_do_volume_func_t pa_get_volume_func(pa_sample_format_t f) {
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pa_assert(pa_sample_format_valid(f));
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return do_volume_table[f];
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}
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void pa_set_volume_func(pa_sample_format_t f, pa_do_volume_func_t func) {
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pa_assert(pa_sample_format_valid(f));
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do_volume_table[f] = func;
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}
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