From 8fd2c262e41a39672c4af9c1836d8d1399e072d3 Mon Sep 17 00:00:00 2001
From: arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sat, 18 Jan 2003 17:31:22 +0000
Subject: added af_format_encode() to convert sample format from libaf to
 mplayer (OSS)

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8994 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libaf/af_mp.c | 37 +++++++++++++++++++++++++++++++++++++
 libaf/af_mp.h |  1 +
 2 files changed, 38 insertions(+)

(limited to 'libaf')

diff --git a/libaf/af_mp.c b/libaf/af_mp.c
index 0ad0f6570e..835cba73a8 100644
--- a/libaf/af_mp.c
+++ b/libaf/af_mp.c
@@ -41,3 +41,40 @@ int af_format_decode(int ifmt)
   }
   return ofmt;
 }
+
+/* Encodes the format from libaf format to mplayer (OSS) format */
+int af_format_encode(void* fmtp)
+{
+  af_data_t* fmt=(af_data_t*) fmtp;
+  switch(fmt->format&AF_FORMAT_SPECIAL_MASK){
+  case 0: // PCM:
+    if((fmt->format&AF_FORMAT_POINT_MASK)==AF_FORMAT_I){
+      if((fmt->format&AF_FORMAT_SIGN_MASK)==AF_FORMAT_SI){
+        // signed int PCM:
+        switch(fmt->bps){
+          case 1: return AFMT_S8;
+          case 2: return (fmt->format&AF_FORMAT_LE) ? AFMT_S16_LE : AFMT_S16_BE;
+          case 4: return (fmt->format&AF_FORMAT_LE) ? AFMT_S32_LE : AFMT_S32_BE;
+	}
+      } else {
+        // unsigned int PCM:
+        switch(fmt->bps){
+          case 1: return AFMT_U8;
+          case 2: return (fmt->format&AF_FORMAT_LE) ? AFMT_U16_LE : AFMT_U16_BE;
+//          case 4: return (fmt->format&AF_FORMAT_LE) ? AFMT_U32_LE : AFMT_U32_BE;
+	}
+      }
+    } else {
+      // float PCM:
+      return AFMT_FLOAT; // FIXME?
+    }
+    break;
+  case AF_FORMAT_MU_LAW: return AFMT_MU_LAW;
+  case AF_FORMAT_A_LAW:  return AFMT_A_LAW;
+  case AF_FORMAT_MPEG2:  return AFMT_MPEG;
+  case AF_FORMAT_AC3:    return AFMT_AC3;
+  case AF_FORMAT_IMA_ADPCM: return AFMT_IMA_ADPCM;
+  }
+  return AFMT_S16_LE; // shouldn't happen
+}
+
diff --git a/libaf/af_mp.h b/libaf/af_mp.h
index 7e27f801e6..7d3918a55a 100644
--- a/libaf/af_mp.h
+++ b/libaf/af_mp.h
@@ -22,5 +22,6 @@
 
 /* Decodes the format from mplayer format to libaf format */
 extern int af_format_decode(int format);
+extern int af_format_encode(void* fmt);
 
 #endif /* __af_mp_h__ */
-- 
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