From 7f2e6b1aac6740168c7fac5b1054ed234e420159 Mon Sep 17 00:00:00 2001
From: Mike Brady <mikebrady@eircom.net>
Date: Wed, 29 May 2019 16:18:51 +0100
Subject: [PATCH] Add support for S32_LE, S32_BE, S24_LE and S24_BE wqhen
 generating frames of dithered silence

---
 common.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/common.c b/common.c
index b097ddab..0f72f6f9 100644
--- a/common.c
+++ b/common.c
@@ -1442,6 +1442,30 @@ int64_t generate_zero_frames(char *outp, size_t number_of_frames, enum sps_forma
       *(int32_t *)op = hyper_sample;
       result = 4;
       break;
+    case SPS_FORMAT_S32_LE:
+      hyper_sample >>= (64 - 32);
+      byt = (uint8_t)hyper_sample;
+      *op++ = byt;
+      byt = (uint8_t)(hyper_sample >> 8);
+      *op++ = byt;
+      byt = (uint8_t)(hyper_sample >> 16);
+      *op++ = byt;
+      byt = (uint8_t)(hyper_sample >> 24);
+      *op++ = byt;
+      result = 4;
+      break;
+    case SPS_FORMAT_S32_BE:
+      hyper_sample >>= (64 - 32);
+      byt = (uint8_t)(hyper_sample >> 24);
+      *op++ = byt;
+      byt = (uint8_t)(hyper_sample >> 16);
+      *op++ = byt;
+      byt = (uint8_t)(hyper_sample >> 8);
+      *op++ = byt;
+      byt = (uint8_t)hyper_sample;
+      *op++ = byt;
+      result = 4;
+      break;
     case SPS_FORMAT_S24_3LE:
       hyper_sample >>= (64 - 24);
       byt = (uint8_t)hyper_sample;
@@ -1467,6 +1491,28 @@ int64_t generate_zero_frames(char *outp, size_t number_of_frames, enum sps_forma
       *(int32_t *)op = hyper_sample;
       result = 4;
       break;
+    case SPS_FORMAT_S24_LE:
+      hyper_sample >>= (64 - 24);
+      byt = (uint8_t)hyper_sample;
+      *op++ = byt;
+      byt = (uint8_t)(hyper_sample >> 8);
+      *op++ = byt;
+      byt = (uint8_t)(hyper_sample >> 16);
+      *op++ = byt;
+      *op++ = 0;
+      result = 4;
+      break;
+    case SPS_FORMAT_S24_BE:
+      hyper_sample >>= (64 - 24);
+      *op++ = 0;
+      byt = (uint8_t)(hyper_sample >> 16);
+      *op++ = byt;
+      byt = (uint8_t)(hyper_sample >> 8);
+      *op++ = byt;
+      byt = (uint8_t)hyper_sample;
+      *op++ = byt;
+      result = 4;
+      break;
     case SPS_FORMAT_S16_LE:
       hyper_sample >>= (64 - 16);
       byt = (uint8_t)hyper_sample;
@@ -1501,7 +1547,7 @@ int64_t generate_zero_frames(char *outp, size_t number_of_frames, enum sps_forma
       break;
     default:
       result = 0; // stop a compiler warning
-      die("Unexpected SPS_FORMAT_UNKNOWN while outputting samples");
+      die("Unexpected SPS_FORMAT_* with index %d while outputting silence",format);
     }
     p += result;
     previous_random_number = r;