Module Name: src
Committed By: nat
Date: Sat Dec 16 16:09:36 UTC 2017
Modified Files:
src/sys/dev: auconv.c auconv.h
Log Message:
Replace LINEARN_TO_LINEARN macro with individual optimized functions for
8, 16, 24 and 32 bits linear to linear conversions.
Addresses PR kern/52586.
To generate a diff of this commit:
cvs rdiff -u -r1.34 -r1.35 src/sys/dev/auconv.c
cvs rdiff -u -r1.20 -r1.21 src/sys/dev/auconv.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/auconv.c
diff -u src/sys/dev/auconv.c:1.34 src/sys/dev/auconv.c:1.35
--- src/sys/dev/auconv.c:1.34 Tue Nov 7 01:15:42 2017
+++ src/sys/dev/auconv.c Sat Dec 16 16:09:36 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: auconv.c,v 1.34 2017/11/07 01:15:42 nat Exp $ */
+/* $NetBSD: auconv.c,v 1.35 2017/12/16 16:09:36 nat Exp $ */
/*
* Copyright (c) 1996 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: auconv.c,v 1.34 2017/11/07 01:15:42 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: auconv.c,v 1.35 2017/12/16 16:09:36 nat Exp $");
#include <sys/types.h>
#include <sys/audioio.h>
@@ -113,6 +113,7 @@ struct conv_table {
stream_filter_factory_t *play_conv;
stream_filter_factory_t *rec_conv;
};
+
#define TABLE_LIST(prec, valid, target) \
{AUDIO_ENCODING_SLINEAR_LE, prec, valid, \
linear##target##_##target##_to_linear##prec, \
@@ -485,225 +486,1395 @@ DEFINE_FILTER(swap_bytes_change_sign16)
return 0;
}
-#define LINEARN_LINEAR(n_prec, n_validbits, t_prec) \
- DEFINE_FILTER(linear##n_prec##_##n_validbits##_to_linear##t_prec)\
-{ \
- stream_filter_t *this; \
- int m, err, enc_dst, enc_src; \
- int target, valid, hw, i, j; \
- \
- hw = n_prec / NBBY; \
- valid = n_validbits / NBBY; \
- target = t_prec / NBBY; \
- this = (stream_filter_t *)self; \
- max_used = ((max_used / hw) * hw); \
- \
- if ((err = this->prev->fetch_to(sc, this->prev, this->src, \
- max_used))) \
- return err; \
- m = (((dst->end - dst->start) / target) * target) & ~1; \
- m = min(m, max_used * hw / target); \
- enc_dst = dst->param.encoding; \
- enc_src = this->src->param.encoding; \
- if ((enc_src == AUDIO_ENCODING_SLINEAR_LE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_LE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_LE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) { \
- /* \
- * slinearNle -> slinearNle \
- * ulinearNle -> ulinearNle \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- while (j > 0) \
- d[--j] = s[--i]; \
- } else { \
- while (i > 0) \
- d[--j] = s[--i]; \
- while (j > 0) \
- d[--j] = 0; \
- } \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_BE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_BE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) { \
- /* \
- * slinearNbe -> slinearNbe \
- * ulinearNbe -> ulinearNbe \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- j = 0; \
- while (j < target) \
- d[j++] = s[i++]; \
- } else { \
- j = 0; \
- i = 0; \
- while (i < valid) \
- d[j++] = s[i++]; \
- while (j < target) \
- d[j++] = 0; \
- } \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_BE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_LE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) { \
- /* \
- * slinearNle -> slinearNbe \
- * ulinearNle -> ulinearNbe \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- while (j > 0) { \
- d[target - j] = s[--i]; \
- j--; \
- } \
- } else { \
- while (j > i) \
- d[--j] = 0; \
- j = 0; \
- while (i > 0) { \
- d[j++] = s[--i]; \
- } \
- } \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_LE) \
- || (enc_src == AUDIO_ENCODING_SLINEAR_BE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) { \
- /* \
- * ulinearNbe -> slinearNle \
- * slinearNbe -> ulinearNle \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = 0; \
- j = target; \
- if (target < valid) { \
- while (j > 0) \
- d[--j] = s[i++]; \
- } else { \
- while (i < valid) \
- d[--j] = s[i++]; \
- while (j > 0) \
- d[--j] = 0; \
- } \
- d[target - 1] ^= 0x80; \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_LE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_BE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) { \
- /* \
- * slinearNbe -> slinearNle \
- * ulinearNbe -> ulinearNle \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = 0; \
- j = target; \
- if (target < valid) { \
- while (j > 0) \
- d[--j] = s[i++]; \
- } else { \
- while (i < valid) \
- d[--j] = s[i++]; \
- while (j > 0) \
- d[--j] = 0; \
- } \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_BE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_LE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) { \
- /* \
- * slinearNle -> ulinearNbe \
- * ulinearNle -> slinearNbe \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- j = 0; \
- while (j < target) { \
- d[j++] = s[i--]; \
- } \
- } else { \
- j = 0; \
- while (i > 0) \
- d[j++] = s[--i]; \
- while (j < target) \
- d[j++] = 0; \
- } \
- d[0] ^= 0x80; \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE \
- && enc_dst == AUDIO_ENCODING_ULINEAR_BE) \
- || (enc_src == AUDIO_ENCODING_ULINEAR_BE \
- && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) { \
- /* \
- * slinearNbe -> ulinearNbe \
- * ulinearNbe -> slinearNbe \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = 0; \
- j = 0; \
- if (target < valid) { \
- while (j < target) \
- d[j++] = s[i++]; \
- } else { \
- while (i < valid) \
- d[j++] = s[i++]; \
- while (j < target) \
- d[j++] = 0; \
- } \
- d[0] ^= 0x80; \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } else { \
- /* \
- * slinearNle -> ulinearNle \
- * ulinearNle -> slinearNle \
- */ \
- FILTER_LOOP_PROLOGUE(this->src, hw, dst, target, m) { \
- i = valid; \
- j = target; \
- if (j < i) { \
- while (j > 0) \
- d[--j] = s[--i]; \
- } else { \
- while (i > 0) \
- d[--j] = s[--i]; \
- while (j > 0) \
- d[--j] = 0; \
- } \
- d[target - 1] ^= 0x80; \
- } FILTER_LOOP_EPILOGUE(this->src, dst); \
- } \
- return 0; \
-}
-
-LINEARN_LINEAR(32, 32, 32);
-LINEARN_LINEAR(32, 32, 24);
-LINEARN_LINEAR(32, 32, 16);
-LINEARN_LINEAR(32, 32, 8);
-LINEARN_LINEAR(24, 24, 32);
-LINEARN_LINEAR(24, 24, 24);
-LINEARN_LINEAR(24, 24, 16);
-LINEARN_LINEAR(24, 24, 8);
-LINEARN_LINEAR(16, 16, 32);
-LINEARN_LINEAR(16, 16, 24);
-LINEARN_LINEAR(16, 16, 16);
-LINEARN_LINEAR(16, 16, 8);
-LINEARN_LINEAR(8, 8, 32);
-LINEARN_LINEAR(8, 8, 24);
-LINEARN_LINEAR(8, 8, 16);
-LINEARN_LINEAR(8, 8, 8);
+DEFINE_FILTER(linear8_8_to_linear32)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~3;
+ m = min(m, max_used / 4);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear8be -> slinear32le
+ * ulinear8be -> ulinear32le
+ *
+ * slinear8le -> slinear32le
+ * ulinear8le -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 4, m) {
+ d[3] = s[0];
+ d[2] = 0;
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear8le -> slinear32be
+ * ulinear8le -> ulinear32be
+ *
+ * slinear8be -> slinear32be
+ * ulinear8be -> ulinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 4, m) {
+ d[3] = 0;
+ d[2] = 0;
+ d[1] = 0;
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear8be -> ulinear32be
+ * ulinear8be -> slinear32be
+ *
+ * slinear8le -> ulinear32be
+ * ulinear8le -> slinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 4, m) {
+ d[3] = 0;
+ d[2] = 0;
+ d[1] = 0;
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear8le -> ulinear32le
+ * ulinear8le -> slinear32le
+ *
+ * ulinear8be -> slinear32le
+ * slinear8be -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 4, m) {
+ d[3] = s[0] ^ 0x80;
+ d[2] = 0;
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear8_8_to_linear24)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (((dst->end - dst->start) / 3) * 3) & ~1;
+ m = min(m, max_used / 3);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear8be -> slinear24le
+ * ulinear8be -> ulinear24le
+ *
+ * slinear8le -> slinear24le
+ * ulinear8le -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 3, m) {
+ d[2] = s[0];
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear8le -> slinear24be
+ * ulinear8le -> ulinear24be
+ *
+ * slinear8be -> slinear24be
+ * ulinear8be -> ulinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 3, m) {
+ d[2] = 0;
+ d[1] = 0;
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear8be -> ulinear24be
+ * ulinear8be -> slinear24be
+ *
+ * slinear8le -> ulinear24be
+ * ulinear8le -> slinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 3, m) {
+ d[2] = 0;
+ d[1] = 0;
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear8le -> ulinear24le
+ * ulinear8le -> slinear24le
+ *
+ * ulinear8be -> slinear24le
+ * slinear8be -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 3, m) {
+ d[2] = s[0] ^ 0x80;
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear8_8_to_linear16)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~1;
+ m = min(m, max_used / 2);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear8be -> slinear16le
+ * ulinear8be -> ulinear16le
+ *
+ * slinear8le -> slinear16le
+ * ulinear8le -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 2, m) {
+ d[1] = s[0];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear8le -> slinear16be
+ * ulinear8le -> ulinear16be
+ *
+ * slinear8be -> slinear16be
+ * ulinear8be -> ulinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 2, m) {
+ d[1] = 0;
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear8be -> ulinear16be
+ * ulinear8be -> slinear16be
+ *
+ * slinear8le -> ulinear16be
+ * ulinear8le -> slinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 2, m) {
+ d[1] = 0;
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear8le -> ulinear16le
+ * ulinear8le -> slinear16le
+ *
+ * ulinear8be -> slinear16le
+ * slinear8be -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 1, dst, 2, m) {
+ d[1] = s[0] ^ 0x80;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linearN_to_linear8)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+ int valid, hw;
+
+ this = (stream_filter_t *)self;
+ hw = this->src->param.precision / NBBY;
+ valid = this->src->param.validbits / NBBY;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start);
+ m = min(m, max_used * hw);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinearNle -> slinear8le
+ * ulinearNle -> ulinear8le
+ *
+ * slinearNle -> slinear8be
+ * ulinearNle -> ulinear8be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, hw, dst, 1, m) {
+ d[0] = s[valid - 1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)) {
+ /*
+ * slinearNbe -> slinear8le
+ * ulinearNbe -> ulinear8le
+ *
+ * slinearNbe -> slinear8be
+ * ulinearNbe -> ulinear8be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, hw, dst, 1, m) {
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * ulinearNbe -> slinear8le
+ * slinearNbe -> ulinear8le
+ *
+ * slinearNbe -> ulinear8be
+ * ulinearNbe -> slinear8be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, hw, dst, 1, m) {
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinearNle -> ulinear8le
+ * ulinearNle -> slinear8le
+ *
+ * slinearNle -> ulinear8be
+ * ulinearNle -> slinear8be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, hw, dst, 1, m) {
+ d[0] = s[valid - 1] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear16_16_to_linear32)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 2) * 2;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~3;
+ m = min(m, max_used / 2);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear16le -> slinear32le
+ * ulinear16le -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 4, m) {
+ d[3] = s[1];
+ d[2] = s[0];
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear16be -> slinear32be
+ * ulinear16be -> ulinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 4, m) {
+ d[3] = 0;
+ d[2] = 0;
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear16le -> slinear32be
+ * ulinear16le -> ulinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 4, m) {
+ d[3] = 0;
+ d[2] = 0;
+ d[1] = s[0];
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear16be -> slinear32le
+ * slinear16be -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 4, m) {
+ d[3] = s[0] ^ 0x80;
+ d[2] = s[1];
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear16be -> slinear32le
+ * ulinear16be -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 4, m) {
+ d[3] = s[0];
+ d[2] = s[1];
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear16le -> ulinear32be
+ * ulinear16le -> slinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 4, m) {
+ d[3] = 0;
+ d[2] = 0;
+ d[1] = s[0];
+ d[0] = s[1] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear16be -> ulinear32be
+ * ulinear16be -> slinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 4, m) {
+ d[3] = 0;
+ d[2] = 0;
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear16le -> ulinear32le
+ * ulinear16le -> slinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 4, m) {
+ d[3] = s[1] ^ 0x80;
+ d[2] = s[0];
+ d[1] = 0;
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear16_16_to_linear24)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 2) * 2;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = ((dst->end - dst->start) / 3) * 3;
+ m = min(m, max_used * 2 / 3);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear16le -> slinear24le
+ * ulinear16le -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 3, m) {
+ d[2] = s[1];
+ d[1] = s[0];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear16be -> slinear24be
+ * ulinear16be -> ulinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 3, m) {
+ d[2] = 0;
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear16le -> slinear24be
+ * ulinear16le -> ulinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 3, m) {
+ d[2] = 0;
+ d[1] = s[0];
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear16be -> slinear24le
+ * slinear16be -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 3, m) {
+ d[2] = s[0] ^ 0x80;
+ d[1] = s[1];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear16be -> slinear24le
+ * ulinear16be -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 3, m) {
+ d[2] = s[0];
+ d[1] = s[1];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear16le -> ulinear24be
+ * ulinear16le -> slinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 3, m) {
+ d[2] = 0;
+ d[1] = s[0];
+ d[0] = s[1] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear16be -> ulinear24be
+ * ulinear16be -> slinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 3, m) {
+ d[2] = 0;
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear16le -> ulinear24le
+ * ulinear16le -> slinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 3, m) {
+ d[2] = s[1] ^ 0x80;
+ d[1] = s[0];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear16_16_to_linear16)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 2) * 2;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~1;
+ m = min(m, max_used);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear16be -> slinear16le
+ * ulinear16be -> ulinear16le
+ *
+ * slinear16le -> slinear16be
+ * ulinear16le -> ulinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 2, m) {
+ d[1] = s[0];
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear16be -> slinear16be
+ * slinear16le -> slinear16le
+ *
+ * ulinear16be -> ulinear16be
+ * ulinear16le -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 2, m) {
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear16be -> slinear16le
+ * slinear16be -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 2, m) {
+ d[1] = s[0] ^ 0x80;
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear16le -> ulinear16be
+ * ulinear16le -> slinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 2, m) {
+ d[1] = s[0];
+ d[0] = s[1] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear16be -> ulinear16be
+ * ulinear16be -> slinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 2, m) {
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear16le -> ulinear16le
+ * ulinear16le -> slinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 2, dst, 2, m) {
+ d[1] = s[1] ^ 0x80;
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear24_24_to_linear32)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 3) * 3;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~3;
+ m = min(m, max_used * 3 / 4);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear24le -> slinear32le
+ * ulinear24le -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 4, m) {
+ d[3] = s[2];
+ d[2] = s[1];
+ d[1] = s[0];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear24be -> slinear32be
+ * ulinear24be -> ulinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 4, m) {
+ d[3] = 0;
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear24le -> slinear32be
+ * ulinear24le -> ulinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 4, m) {
+ d[3] = 0;
+ d[2] = s[0];
+ d[1] = s[1];
+ d[0] = s[2];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear24be -> slinear32le
+ * slinear24be -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 4, m) {
+ d[3] = s[0] ^ 0x80;
+ d[2] = s[1];
+ d[1] = s[2];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear24be -> slinear32le
+ * ulinear24be -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 4, m) {
+ d[3] = s[0];
+ d[2] = s[1];
+ d[1] = s[2];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear24le -> ulinear32be
+ * ulinear24le -> slinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 4, m) {
+ d[3] = 0;
+ d[2] = s[0];
+ d[1] = s[1];
+ d[0] = s[2] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear24be -> ulinear32be
+ * ulinear24be -> slinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 4, m) {
+ d[3] = 0;
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear24le -> ulinear32le
+ * ulinear24le -> slinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 4, m) {
+ d[3] = s[2] ^ 0x80;
+ d[2] = s[1];
+ d[1] = s[0];
+ d[0] = 0;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear24_24_to_linear24)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 3) * 3;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) / 3 * 3;
+ m = min(m, max_used);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear24be -> slinear24le
+ * ulinear24be -> ulinear24le
+ *
+ * slinear24le -> slinear24be
+ * ulinear24le -> ulinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 3, m) {
+ d[2] = s[0];
+ d[1] = s[1];
+ d[0] = s[2];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear24be -> slinear24be
+ * slinear24le -> slinear24le
+ *
+ * ulinear24be -> ulinear24be
+ * ulinear24le -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 3, m) {
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear24be -> slinear24le
+ * slinear24be -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 3, m) {
+ d[2] = s[0] ^ 0x80;
+ d[1] = s[1];
+ d[0] = s[2];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear24le -> ulinear24be
+ * ulinear24le -> slinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 3, m) {
+ d[2] = s[0];
+ d[1] = s[1];
+ d[0] = s[2] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear24be -> ulinear24be
+ * ulinear24be -> slinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 3, m) {
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear24le -> ulinear24le
+ * ulinear24le -> slinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 3, m) {
+ d[2] = s[2] ^ 0x80;
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear24_24_to_linear16)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 2) * 2;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~1;
+ m = min(m, max_used * 3 / 2);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear24le -> slinear16le
+ * ulinear24le -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 2, m) {
+ d[1] = s[2];
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear24be -> slinear16be
+ * ulinear24be -> ulinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 2, m) {
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear24le -> slinear16be
+ * ulinear24le -> ulinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 2, m) {
+ d[1] = s[1];
+ d[0] = s[2];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear24be -> slinear16le
+ * slinear24be -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 2, m) {
+ d[1] = s[0] ^ 0x80;
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear24be -> slinear16le
+ * ulinear24be -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 2, m) {
+ d[1] = s[0];
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear24le -> ulinear16be
+ * ulinear24le -> slinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 2, m) {
+ d[1] = s[1];
+ d[0] = s[2] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear24be -> ulinear16be
+ * ulinear24be -> slinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 2, m) {
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear24le -> ulinear16le
+ * ulinear24le -> slinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 3, dst, 2, m) {
+ d[1] = s[2] ^ 0x80;
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear32_32_to_linear32)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 4) * 4;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~3;
+ m = min(m, max_used);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear32be -> slinear32le
+ * ulinear32be -> ulinear32le
+ *
+ * slinear32le -> slinear32be
+ * ulinear32le -> ulinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 4, m) {
+ d[3] = s[0];
+ d[2] = s[1];
+ d[1] = s[2];
+ d[0] = s[3];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear32be -> slinear32be
+ * slinear32le -> slinear32le
+ *
+ * ulinear32be -> ulinear32be
+ * ulinear32le -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 4, m) {
+ d[3] = s[3];
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear32be -> slinear32le
+ * slinear32be -> ulinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 4, m) {
+ d[3] = s[0] ^ 0x80;
+ d[2] = s[1];
+ d[1] = s[2];
+ d[0] = s[3];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear32le -> ulinear32be
+ * ulinear32le -> slinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 4, m) {
+ d[3] = s[0];
+ d[2] = s[1];
+ d[1] = s[2];
+ d[0] = s[3] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear32be -> ulinear32be
+ * ulinear32be -> slinear32be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 4, m) {
+ d[3] = s[3];
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear32le -> ulinear32le
+ * ulinear32le -> slinear32le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 4, m) {
+ d[3] = s[3] ^ 0x80;
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear32_32_to_linear24)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 3) * 3;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = ((dst->end - dst->start) / 3) * 3;
+ m = min(m, max_used * 4 / 3);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear32le -> slinear24le
+ * ulinear32le -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 3, m) {
+ d[2] = s[3];
+ d[1] = s[2];
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear32be -> slinear24be
+ * ulinear32be -> ulinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 3, m) {
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear32le -> slinear24be
+ * ulinear32le -> ulinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 3, m) {
+ d[2] = s[1];
+ d[1] = s[2];
+ d[0] = s[3];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear32be -> slinear24le
+ * slinear32be -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 3, m) {
+ d[2] = s[0] ^ 0x80;
+ d[1] = s[1];
+ d[0] = s[2];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear32be -> slinear24le
+ * ulinear32be -> ulinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 3, m) {
+ d[2] = s[0];
+ d[1] = s[1];
+ d[0] = s[2];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear32le -> ulinear24be
+ * ulinear32le -> slinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 3, m) {
+ d[2] = s[1];
+ d[1] = s[2];
+ d[0] = s[3] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear32be -> ulinear24be
+ * ulinear32be -> slinear24be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 3, m) {
+ d[2] = s[2];
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear32le -> ulinear24le
+ * ulinear32le -> slinear24le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 3, m) {
+ d[2] = s[3] ^ 0x80;
+ d[1] = s[2];
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
+
+DEFINE_FILTER(linear32_32_to_linear16)
+{
+ stream_filter_t *this;
+ int m, err, enc_dst, enc_src;
+
+ this = (stream_filter_t *)self;
+ max_used = (max_used / 2) * 2;
+
+ if ((err = this->prev->fetch_to(sc, this->prev, this->src, max_used)))
+ return err;
+ m = (dst->end - dst->start) & ~1;
+ m = min(m, max_used * 2);
+ enc_dst = dst->param.encoding;
+ enc_src = this->src->param.encoding;
+ if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear32le -> slinear16le
+ * ulinear32le -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 2, m) {
+ d[1] = s[3];
+ d[0] = s[2];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear32be -> slinear16be
+ * ulinear32be -> ulinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 2, m) {
+ d[1] = s[1];
+ d[0] = s[0];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)) {
+ /*
+ * slinear32le -> slinear16be
+ * ulinear32le -> ulinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 2, m) {
+ d[1] = s[2];
+ d[0] = s[3];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * ulinear32be -> slinear16le
+ * slinear32be -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 2, m) {
+ d[1] = s[0] ^ 0x80;
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_LE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_LE)) {
+ /*
+ * slinear32be -> slinear16le
+ * ulinear32be -> ulinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 2, m) {
+ d[1] = s[0];
+ d[0] = s[1];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_LE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_LE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear32le -> ulinear16be
+ * ulinear32le -> slinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 2, m) {
+ d[1] = s[2];
+ d[0] = s[3] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else if ((enc_src == AUDIO_ENCODING_SLINEAR_BE
+ && enc_dst == AUDIO_ENCODING_ULINEAR_BE)
+ || (enc_src == AUDIO_ENCODING_ULINEAR_BE
+ && enc_dst == AUDIO_ENCODING_SLINEAR_BE)) {
+ /*
+ * slinear32be -> ulinear16be
+ * ulinear32be -> slinear16be
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 2, m) {
+ d[1] = s[1];
+ d[0] = s[0] ^ 0x80;
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ } else {
+ /*
+ * slinear32le -> ulinear16le
+ * ulinear32le -> slinear16le
+ */
+ FILTER_LOOP_PROLOGUE(this->src, 4, dst, 2, m) {
+ d[1] = s[3] ^ 0x80;
+ d[0] = s[2];
+ } FILTER_LOOP_EPILOGUE(this->src, dst);
+ }
+ return 0;
+}
/**
* Set appropriate parameters in `param,' and return the index in
Index: src/sys/dev/auconv.h
diff -u src/sys/dev/auconv.h:1.20 src/sys/dev/auconv.h:1.21
--- src/sys/dev/auconv.h:1.20 Tue Nov 7 01:15:42 2017
+++ src/sys/dev/auconv.h Sat Dec 16 16:09:36 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: auconv.h,v 1.20 2017/11/07 01:15:42 nat Exp $ */
+/* $NetBSD: auconv.h,v 1.21 2017/12/16 16:09:36 nat Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
@@ -65,22 +65,23 @@ extern stream_filter_factory_t swap_byte
extern stream_filter_factory_t linear32_32_to_linear32;
extern stream_filter_factory_t linear32_32_to_linear24;
extern stream_filter_factory_t linear32_32_to_linear16;
-extern stream_filter_factory_t linear32_32_to_linear8;
extern stream_filter_factory_t linear24_24_to_linear32;
extern stream_filter_factory_t linear24_24_to_linear24;
extern stream_filter_factory_t linear24_24_to_linear16;
-extern stream_filter_factory_t linear24_24_to_linear8;
extern stream_filter_factory_t linear16_16_to_linear32;
extern stream_filter_factory_t linear16_16_to_linear24;
extern stream_filter_factory_t linear16_16_to_linear16;
-extern stream_filter_factory_t linear16_16_to_linear8;
extern stream_filter_factory_t linear8_8_to_linear32;
extern stream_filter_factory_t linear8_8_to_linear24;
extern stream_filter_factory_t linear8_8_to_linear16;
-extern stream_filter_factory_t linear8_8_to_linear8;
+extern stream_filter_factory_t linearN_to_linear8;
extern stream_filter_factory_t null_filter;
-#define linear16_to_linear8 linear16_16_to_linear8
+#define linear32_32_to_linear8 linearN_to_linear8
+#define linear24_24_to_linear8 linearN_to_linear8
+#define linear16_16_to_linear8 linearN_to_linear8
+#define linear8_8_to_linear8 linearN_to_linear8
+#define linear16_to_linear8 linearN_to_linear8
#define linear8_to_linear16 linear8_8_to_linear16
/* sampling rate conversion (aurateconv.c) */
