From 7e0f547f2fd8ddfae1d807334dbc3428a3dfe374 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 9 Nov 2007 02:45:07 +0000
Subject: add support for 32bit integer samples

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2037 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/pulse/sample.c | 16 ++++++++++++++--
 src/pulse/sample.h | 18 +++++++++++++++---
 2 files changed, 29 insertions(+), 5 deletions(-)

(limited to 'src/pulse')

diff --git a/src/pulse/sample.c b/src/pulse/sample.c
index ae2a0b9f..27c0df03 100644
--- a/src/pulse/sample.c
+++ b/src/pulse/sample.c
@@ -44,7 +44,9 @@ size_t pa_sample_size(const pa_sample_spec *spec) {
         [PA_SAMPLE_S16LE] = 2,
         [PA_SAMPLE_S16BE] = 2,
         [PA_SAMPLE_FLOAT32LE] = 4,
-        [PA_SAMPLE_FLOAT32BE] = 4
+        [PA_SAMPLE_FLOAT32BE] = 4,
+        [PA_SAMPLE_S32LE] = 4,
+        [PA_SAMPLE_S32BE] = 4,
     };
 
     pa_assert(spec);
@@ -107,6 +109,8 @@ const char *pa_sample_format_to_string(pa_sample_format_t f) {
         [PA_SAMPLE_S16BE] = "s16be",
         [PA_SAMPLE_FLOAT32LE] = "float32le",
         [PA_SAMPLE_FLOAT32BE] = "float32be",
+        [PA_SAMPLE_S32LE] = "s32le",
+        [PA_SAMPLE_S32BE] = "s32be",
     };
 
     if (f < 0 || f >= PA_SAMPLE_MAX)
@@ -156,7 +160,7 @@ pa_sample_format_t pa_parse_sample_format(const char *format) {
         return PA_SAMPLE_S16RE;
     else if (strcasecmp(format, "u8") == 0 || strcasecmp(format, "8") == 0)
         return PA_SAMPLE_U8;
-    else if (strcasecmp(format, "float32") == 0 || strcasecmp(format, "float32ne") == 0)
+    else if (strcasecmp(format, "float32") == 0 || strcasecmp(format, "float32ne") == 0 || strcasecmp(format, "float") == 0)
         return PA_SAMPLE_FLOAT32NE;
     else if (strcasecmp(format, "float32re") == 0)
         return PA_SAMPLE_FLOAT32RE;
@@ -168,6 +172,14 @@ pa_sample_format_t pa_parse_sample_format(const char *format) {
         return PA_SAMPLE_ULAW;
     else if (strcasecmp(format, "alaw") == 0)
         return PA_SAMPLE_ALAW;
+    else if (strcasecmp(format, "s32le") == 0)
+        return PA_SAMPLE_S32LE;
+    else if (strcasecmp(format, "s32be") == 0)
+        return PA_SAMPLE_S32BE;
+    else if (strcasecmp(format, "s32ne") == 0 || strcasecmp(format, "s32") == 0 || strcasecmp(format, "32") == 0)
+        return PA_SAMPLE_S32NE;
+    else if (strcasecmp(format, "s32re") == 0)
+        return PA_SAMPLE_S32RE;
 
     return -1;
 }
diff --git a/src/pulse/sample.h b/src/pulse/sample.h
index b307621e..2c13f57d 100644
--- a/src/pulse/sample.h
+++ b/src/pulse/sample.h
@@ -42,13 +42,15 @@
  *
  * PulseAudio supports the following sample formats:
  *
- * \li PA_SAMPLE_U8 - Unsigned 8 bit PCM.
- * \li PA_SAMPLE_S16LE - Signed 16 bit PCM, little endian.
- * \li PA_SAMPLE_S16BE - Signed 16 bit PCM, big endian.
+ * \li PA_SAMPLE_U8 - Unsigned 8 bit integer PCM.
+ * \li PA_SAMPLE_S16LE - Signed 16 integer bit PCM, little endian.
+ * \li PA_SAMPLE_S16BE - Signed 16 integer bit PCM, big endian.
  * \li PA_SAMPLE_FLOAT32LE - 32 bit IEEE floating point PCM, little endian.
  * \li PA_SAMPLE_FLOAT32BE - 32 bit IEEE floating point PCM, big endian.
  * \li PA_SAMPLE_ALAW - 8 bit a-Law.
  * \li PA_SAMPLE_ULAW - 8 bit mu-Law.
+ * \li PA_SAMPLE_S32LE - Signed 32 bit integer PCM, little endian.
+ * \li PA_SAMPLE_S32BE - Signed 32 bit integer  PCM, big endian.
  *
  * The floating point sample formats have the range from -1 to 1.
  *
@@ -117,6 +119,8 @@ typedef enum pa_sample_format {
     PA_SAMPLE_S16BE,           /**< Signed 16 Bit PCM, big endian */
     PA_SAMPLE_FLOAT32LE,       /**< 32 Bit IEEE floating point, little endian, range -1 to 1 */
     PA_SAMPLE_FLOAT32BE,       /**< 32 Bit IEEE floating point, big endian, range -1 to 1 */
+    PA_SAMPLE_S32LE,           /**< Signed 32 Bit PCM, little endian (PC) */
+    PA_SAMPLE_S32BE,           /**< Signed 32 Bit PCM, big endian (PC) */
     PA_SAMPLE_MAX,             /**< Upper limit of valid sample types */
     PA_SAMPLE_INVALID = -1     /**< An invalid value */
 } pa_sample_format_t;
@@ -126,19 +130,27 @@ typedef enum pa_sample_format {
 #define PA_SAMPLE_S16NE PA_SAMPLE_S16BE
 /** 32 Bit IEEE floating point, native endian */
 #define PA_SAMPLE_FLOAT32NE PA_SAMPLE_FLOAT32BE
+/** Signed 32 Bit PCM, native endian */
+#define PA_SAMPLE_S32NE PA_SAMPLE_S32BE
 /** Signed 16 Bit PCM reverse endian */
 #define PA_SAMPLE_S16RE PA_SAMPLE_S16LE
 /** 32 Bit IEEE floating point, reverse endian */
 #define PA_SAMPLE_FLOAT32RE PA_SAMPLE_FLOAT32LE
+/** Signed 32 Bit PCM reverse endian */
+#define PA_SAMPLE_S32RE PA_SAMPLE_S32LE
 #else
 /** Signed 16 Bit PCM, native endian */
 #define PA_SAMPLE_S16NE PA_SAMPLE_S16LE
 /** 32 Bit IEEE floating point, native endian */
 #define PA_SAMPLE_FLOAT32NE PA_SAMPLE_FLOAT32LE
+/** Signed 32 Bit PCM, native endian */
+#define PA_SAMPLE_S32NE PA_SAMPLE_S32LE
 /** Signed 16 Bit PCM reverse endian */
 #define PA_SAMPLE_S16RE PA_SAMPLE_S16BE
 /** 32 Bit IEEE floating point, reverse endian */
 #define PA_SAMPLE_FLOAT32RE PA_SAMPLE_FLOAT32BE
+/** Signed 32 Bit PCM reverse endian */
+#define PA_SAMPLE_S32RE PA_SAMPLE_S32BE
 #endif
 
 /** A Shortcut for PA_SAMPLE_FLOAT32NE */
-- 
cgit