From 4446d1bc857b41e491d04b05eeccc873a206fd18 Mon Sep 17 00:00:00 2001
From: Yoshihisa Uchida <uchida@rockbox.org>
Date: Sat, 13 Mar 2010 05:19:40 +0000
Subject: reduce firmware and sun audio codec.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25140 a1c6a512-1295-4272-9138-f99709370657
---
 apps/codecs/libpcm/ieee_float.c | 10 ++++++++++
 apps/codecs/libpcm/itut_g711.c  | 17 +++++++++++------
 apps/codecs/libpcm/linear_pcm.c | 16 ++++++++++++++--
 3 files changed, 35 insertions(+), 8 deletions(-)

(limited to 'apps/codecs/libpcm')

diff --git a/apps/codecs/libpcm/ieee_float.c b/apps/codecs/libpcm/ieee_float.c
index 0530993..7e3498e 100644
--- a/apps/codecs/libpcm/ieee_float.c
+++ b/apps/codecs/libpcm/ieee_float.c
@@ -32,6 +32,12 @@ static bool set_format(struct pcm_format *format)
 {
     fmt = format;
 
+    if (fmt->channels == 0)
+    {
+        DEBUGF("CODEC_ERROR: channels is 0\n");
+        return false;
+    }
+
     if (fmt->bitspersample != 32 && fmt->bitspersample != 64)
     {
         DEBUGF("CODEC_ERROR: ieee float must be 32 or 64 bitspersample: %d\n",
@@ -40,6 +46,10 @@ static bool set_format(struct pcm_format *format)
     }
 
     fmt->bytespersample = fmt->bitspersample >> 3;
+
+    if (fmt->blockalign == 0)
+        fmt->blockalign = fmt->bytespersample * fmt->channels;
+
     fmt->samplesperblock = fmt->blockalign / (fmt->bytespersample * fmt->channels);
 
     /* chunksize = about 1/50[sec] data */
diff --git a/apps/codecs/libpcm/itut_g711.c b/apps/codecs/libpcm/itut_g711.c
index 4644a9c..097dd5c 100644
--- a/apps/codecs/libpcm/itut_g711.c
+++ b/apps/codecs/libpcm/itut_g711.c
@@ -112,6 +112,12 @@ static bool set_format(struct pcm_format *format)
 {
     fmt = format;
 
+    if (fmt->channels == 0)
+    {
+        DEBUGF("CODEC_ERROR: channels is 0\n");
+        return false;
+    }
+
     if (fmt->bitspersample != 8)
     {
         DEBUGF("CODEC_ERROR: alaw and mulaw must have 8 bitspersample: %d\n",
@@ -119,13 +125,12 @@ static bool set_format(struct pcm_format *format)
         return false;
     }
 
-    if (fmt->totalsamples == 0)
-    {
-        fmt->bytespersample = 1;
-        fmt->totalsamples = fmt->numbytes / (fmt->bytespersample * fmt->channels);
-    }
+    fmt->bytespersample = 1;
+
+    if (fmt->blockalign == 0)
+        fmt->blockalign = fmt->channels;
 
-    fmt->samplesperblock = fmt->blockalign / (fmt->bytespersample * fmt->channels);
+    fmt->samplesperblock = fmt->blockalign / fmt->channels;
 
     /* chunksize = about 1/50[sec] data */
     fmt->chunksize = (ci->id3->frequency / (50 * fmt->samplesperblock))
diff --git a/apps/codecs/libpcm/linear_pcm.c b/apps/codecs/libpcm/linear_pcm.c
index 82c70eb..e58856e 100644
--- a/apps/codecs/libpcm/linear_pcm.c
+++ b/apps/codecs/libpcm/linear_pcm.c
@@ -38,6 +38,18 @@ static bool set_format(struct pcm_format *format)
 {
     fmt = format;
 
+    if (fmt->channels == 0)
+    {
+        DEBUGF("CODEC_ERROR: channels is 0\n");
+        return false;
+    }
+
+    if (fmt->bitspersample == 0)
+    {
+        DEBUGF("CODEC_ERROR: bitspersample is 0\n");
+        return false;
+    }
+
     if (fmt->bitspersample > 32)
     {
         DEBUGF("CODEC_ERROR: pcm with more than 32 bitspersample "
@@ -47,8 +59,8 @@ static bool set_format(struct pcm_format *format)
 
     fmt->bytespersample = fmt->bitspersample >> 3;
 
-    if (fmt->totalsamples == 0)
-        fmt->totalsamples = fmt->numbytes/fmt->bytespersample;
+    if (fmt->blockalign == 0)
+        fmt->blockalign = fmt->bytespersample * fmt->channels;
 
     fmt->samplesperblock = fmt->blockalign / (fmt->bytespersample * fmt->channels);
 
-- 
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