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-rw-r--r--src/xine-engine/resample.c82
1 files changed, 41 insertions, 41 deletions
diff --git a/src/xine-engine/resample.c b/src/xine-engine/resample.c
index 43911c401..dcf14a215 100644
--- a/src/xine-engine/resample.c
+++ b/src/xine-engine/resample.c
@@ -1,18 +1,18 @@
-/*
+/*
* Copyright (C) 2000-2003 the xine project
- *
+ *
* This file is part of xine, a free video player.
- *
+ *
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
@@ -30,7 +30,7 @@
/* contributed by paul flinders */
void _x_audio_out_resample_mono(int16_t *last_sample,
- int16_t* input_samples, uint32_t in_samples,
+ int16_t* input_samples, uint32_t in_samples,
int16_t* output_samples, uint32_t out_samples)
{
unsigned int osample;
@@ -54,11 +54,11 @@ void _x_audio_out_resample_mono(int16_t *last_sample,
int s2;
int16_t os;
uint32_t t = isample&0xffff;
-
+
/* don't "optimize" the (isample >> 16)*2 to (isample >> 15) */
s1 = input_samples[(isample >> 16)];
s2 = input_samples[(isample >> 16)+1];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[osample] = os;
@@ -68,7 +68,7 @@ void _x_audio_out_resample_mono(int16_t *last_sample,
}
void _x_audio_out_resample_stereo(int16_t *last_sample,
- int16_t* input_samples, uint32_t in_samples,
+ int16_t* input_samples, uint32_t in_samples,
int16_t* output_samples, uint32_t out_samples)
{
unsigned int osample;
@@ -93,17 +93,17 @@ void _x_audio_out_resample_stereo(int16_t *last_sample,
int s2;
int16_t os;
uint32_t t = isample&0xffff;
-
+
/* don't "optimize" the (isample >> 16)*2 to (isample >> 15) */
s1 = input_samples[(isample >> 16)*2];
s2 = input_samples[(isample >> 16)*2+2];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[osample * 2] = os;
s1 = input_samples[(isample >> 16)*2+1];
s2 = input_samples[(isample >> 16)*2+3];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 2 )+1] = os;
isample += istep;
@@ -113,7 +113,7 @@ void _x_audio_out_resample_stereo(int16_t *last_sample,
void _x_audio_out_resample_4channel(int16_t *last_sample,
- int16_t* input_samples, uint32_t in_samples,
+ int16_t* input_samples, uint32_t in_samples,
int16_t* output_samples, uint32_t out_samples)
{
unsigned int osample;
@@ -140,29 +140,29 @@ void _x_audio_out_resample_4channel(int16_t *last_sample,
int s2;
int16_t os;
uint32_t t = isample&0xffff;
-
+
/* don't "optimize" the (isample >> 16)*2 to (isample >> 15) */
s1 = input_samples[(isample >> 16)*4];
s2 = input_samples[(isample >> 16)*4+4];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[osample * 4] = os;
s1 = input_samples[(isample >> 16)*4+1];
s2 = input_samples[(isample >> 16)*4+5];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 4 )+1] = os;
s1 = input_samples[(isample >> 16)*4+2];
s2 = input_samples[(isample >> 16)*4+6];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 4 )+2] = os;
s1 = input_samples[(isample >> 16)*4+3];
s2 = input_samples[(isample >> 16)*4+7];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 4 )+3] = os;
@@ -173,7 +173,7 @@ void _x_audio_out_resample_4channel(int16_t *last_sample,
void _x_audio_out_resample_5channel(int16_t *last_sample,
- int16_t* input_samples, uint32_t in_samples,
+ int16_t* input_samples, uint32_t in_samples,
int16_t* output_samples, uint32_t out_samples)
{
unsigned int osample;
@@ -201,35 +201,35 @@ void _x_audio_out_resample_5channel(int16_t *last_sample,
int s2;
int16_t os;
uint32_t t = isample&0xffff;
-
+
/* don't "optimize" the (isample >> 16)*2 to (isample >> 15) */
s1 = input_samples[(isample >> 16)*5];
s2 = input_samples[(isample >> 16)*5+5];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[osample * 5] = os;
s1 = input_samples[(isample >> 16)*5+1];
s2 = input_samples[(isample >> 16)*5+6];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 5 )+1] = os;
s1 = input_samples[(isample >> 16)*5+2];
s2 = input_samples[(isample >> 16)*5+7];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 5 )+2] = os;
s1 = input_samples[(isample >> 16)*5+3];
s2 = input_samples[(isample >> 16)*5+8];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 5 )+3] = os;
s1 = input_samples[(isample >> 16)*5+4];
s2 = input_samples[(isample >> 16)*5+9];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 5 )+4] = os;
@@ -240,7 +240,7 @@ void _x_audio_out_resample_5channel(int16_t *last_sample,
void _x_audio_out_resample_6channel(int16_t *last_sample,
- int16_t* input_samples, uint32_t in_samples,
+ int16_t* input_samples, uint32_t in_samples,
int16_t* output_samples, uint32_t out_samples)
{
unsigned int osample;
@@ -269,41 +269,41 @@ void _x_audio_out_resample_6channel(int16_t *last_sample,
int s2;
int16_t os;
uint32_t t = isample&0xffff;
-
+
/* don't "optimize" the (isample >> 16)*2 to (isample >> 15) */
s1 = input_samples[(isample >> 16)*6];
s2 = input_samples[(isample >> 16)*6+6];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[osample * 6] = os;
s1 = input_samples[(isample >> 16)*6+1];
s2 = input_samples[(isample >> 16)*6+7];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 6 )+1] = os;
s1 = input_samples[(isample >> 16)*6+2];
s2 = input_samples[(isample >> 16)*6+8];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 6 )+2] = os;
s1 = input_samples[(isample >> 16)*6+3];
s2 = input_samples[(isample >> 16)*6+9];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 6 )+3] = os;
s1 = input_samples[(isample >> 16)*6+4];
s2 = input_samples[(isample >> 16)*6+10];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 6 )+4] = os;
s1 = input_samples[(isample >> 16)*6+5];
s2 = input_samples[(isample >> 16)*6+11];
-
+
os = (s1 * (0x10000-t)+ s2 * t) >> 16;
output_samples[(osample * 6 )+5] = os;
@@ -312,48 +312,48 @@ void _x_audio_out_resample_6channel(int16_t *last_sample,
memcpy (last_sample, &input_samples[in_samples*6-6], 6 * sizeof (last_sample[0]));
}
-void _x_audio_out_resample_8to16(int8_t* input_samples,
+void _x_audio_out_resample_8to16(int8_t* input_samples,
int16_t* output_samples, uint32_t samples)
{
while( samples-- ) {
int16_t os;
-
+
os = *input_samples++;
os = (os - 0x80) << 8;
*output_samples++ = os;
}
}
-void _x_audio_out_resample_16to8(int16_t* input_samples,
+void _x_audio_out_resample_16to8(int16_t* input_samples,
int8_t* output_samples, uint32_t samples)
{
while( samples-- ) {
int16_t os;
-
+
os = *input_samples++;
os = (os >> 8) + 0x80;
*output_samples++ = os;
}
}
-void _x_audio_out_resample_monotostereo(int16_t* input_samples,
+void _x_audio_out_resample_monotostereo(int16_t* input_samples,
int16_t* output_samples, uint32_t frames)
{
while( frames-- ) {
int16_t os;
-
+
os = *input_samples++;
*output_samples++ = os;
*output_samples++ = os;
}
}
-void _x_audio_out_resample_stereotomono(int16_t* input_samples,
+void _x_audio_out_resample_stereotomono(int16_t* input_samples,
int16_t* output_samples, uint32_t frames)
{
while( frames-- ) {
int16_t os;
-
+
os = (*input_samples++)>>1;
os += (*input_samples++)>>1;
*output_samples++ = os;
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 18:07:58 +0000