DV audio decoder by Roman Shaposhnick

Originally committed as revision 1514 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 39 insertions, 0 deletions

diff --git a/libavcodec/dvdata.h b/libavcodec/dvdata.h
index b5c1f56077..4e1fc39c7f 100644
--- a/libavcodec/dvdata.h
+++ b/libavcodec/dvdata.h
@@ -18,6 +18,7 @@
  */
 
 #define NB_DV_VLC 409
+#define AAUX_OFFSET (80*6 + 80*16*3 + 3)
 
 static const UINT16 dv_vlc_bits[409] = {
  0x0000, 0x0002, 0x0007, 0x0008, 0x0009, 0x0014, 0x0015, 0x0016,
@@ -905,3 +906,41 @@ static const UINT16 dv_place_411[1350] = {
  0x0834, 0x2320, 0x2f44, 0x3810, 0x1658,
 };
 
+static const UINT16 dv_place_audio60[10][9] = {
+  {  0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
+  {  6, 36, 66, 26, 56, 86, 16, 46, 76 },
+  { 12, 42, 72,  2, 32, 62, 22, 52, 82 },
+  { 18, 48, 78,  8, 38, 68, 28, 58, 88 },
+  { 24, 54, 84, 14, 44, 74,  4, 34, 64 },
+  
+  {  1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
+  {  7, 37, 67, 27, 57, 87, 17, 47, 77 },
+  { 13, 43, 73,  3, 33, 63, 23, 53, 83 },
+  { 19, 49, 79,  9, 39, 69, 29, 59, 89 },
+  { 25, 55, 85, 15, 45, 75,  5, 35, 65 },
+};
+
+static const UINT16 dv_place_audio50[12][9] = {
+  {   0,  36,  72,  26,  62,  98,  16,  52,  88}, /* 1st channel */
+  {   6,  42,  78,  32,  68, 104,  22,  58,  94},
+  {  12,  48,  84,   2,  38,  74,  28,  64, 100},
+  {  18,  54,  90,   8,  44,  80,  34,  70, 106},
+  {  24,  60,  96,  14,  50,  86,   4,  40,  76},  
+  {  30,  66, 102,  20,  56,  92,  10,  46,  82},
+	
+  {   1,  37,  73,  27,  63,  99,  17,  53,  89}, /* 2nd channel */
+  {   7,  43,  79,  33,  69, 105,  23,  59,  95},
+  {  13,  49,  85,   3,  39,  75,  29,  65, 101},
+  {  19,  55,  91,   9,  45,  81,  35,  71, 107},
+  {  25,  61,  97,  15,  51,  87,   5,  41,  77},  
+  {  31,  67, 103,  21,  57,  93,  11,  47,  83},
+};
+
+static const int dv_audio_frequency[3] = {
+    48000, 44100, 32000, 
+};
+
+static const int dv_audio_min_samples[2][3] = {
+    { 1580, 1452, 1053 }, /* 60 fields */
+    { 1896, 1742, 1264 }, /* 50 fileds */
+};