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authorFabrice Bellard2002-10-28 00:39:05 +0000
committerFabrice Bellard2002-10-28 00:39:05 +0000
commit6107fa87b46f9147d9b572af72bdcf3e155dfd16 (patch)
tree6b43991441a790bcf293207bd99c55481796ce3b /libavcodec/ac3tab.h
parentbb6f5690728486b71e280a295aef4c49d25ee758 (diff)
preparing integration of new AC3 decoder
Originally committed as revision 1089 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ac3tab.h')
-rw-r--r--libavcodec/ac3tab.h19
1 files changed, 11 insertions, 8 deletions
diff --git a/libavcodec/ac3tab.h b/libavcodec/ac3tab.h
index 2d379f0404..730266dae8 100644
--- a/libavcodec/ac3tab.h
+++ b/libavcodec/ac3tab.h
@@ -1,7 +1,10 @@
/* tables taken directly from AC3 spec */
+/* possible frequencies */
+const UINT16 ac3_freqs[3] = { 48000, 44100, 32000 };
+
/* possible bitrates */
-static const UINT16 bitratetab[19] = {
+const UINT16 ac3_bitratetab[19] = {
32, 40, 48, 56, 64, 80, 96, 112, 128,
160, 192, 224, 256, 320, 384, 448, 512, 576, 640
};
@@ -9,7 +12,7 @@ static const UINT16 bitratetab[19] = {
/* AC3 MDCT window */
/* MDCT window */
-static const INT16 ac3_window[256]= {
+const INT16 ac3_window[256] = {
4, 7, 12, 16, 21, 28, 34, 42,
51, 61, 72, 84, 97, 111, 127, 145,
164, 184, 207, 231, 257, 285, 315, 347,
@@ -138,27 +141,27 @@ static const UINT8 baptab[64]= {
15, 15, 15, 15,
};
-static const UINT8 sdecaytab[4]={
+const UINT8 sdecaytab[4]={
0x0f, 0x11, 0x13, 0x15,
};
-static const UINT8 fdecaytab[4]={
+const UINT8 fdecaytab[4]={
0x3f, 0x53, 0x67, 0x7b,
};
-static const UINT16 sgaintab[4]= {
+const UINT16 sgaintab[4]= {
0x540, 0x4d8, 0x478, 0x410,
};
-static const UINT16 dbkneetab[4]= {
+const UINT16 dbkneetab[4]= {
0x000, 0x700, 0x900, 0xb00,
};
-static const UINT16 floortab[8]= {
+const UINT16 floortab[8]= {
0x2f0, 0x2b0, 0x270, 0x230, 0x1f0, 0x170, 0x0f0, 0xf800,
};
-static const UINT16 fgaintab[8]= {
+const UINT16 fgaintab[8]= {
0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380, 0x400,
};