Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavcodec / dvdata.c

diff --git a/libavcodec/dvdata.c b/libavcodec/dvdata.c
index f292d4bf197e7a3503c02d00a56cda618a48c7e0..4d08d427f9e07253ac5456f1440b74abb7b87485 100644 (file)
--- a/libavcodec/dvdata.c
+++ b/libavcodec/dvdata.c
@@ -43,6 +43,44 @@ static uint32_t dv_idct_factor_sd    [2*2*22*64];
 static uint32_t dv_idct_factor_hd1080[2*4*16*64];
 static uint32_t dv_idct_factor_hd720 [2*4*16*64];
 
+static const uint8_t dv_audio_shuffle525[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 uint8_t dv_audio_shuffle625[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},
+};
+
+/* macroblock bit budgets */
+static const uint8_t block_sizes_dv2550[8] = {
+    112, 112, 112, 112, 80, 80, 0, 0,
+};
+
+static const uint8_t block_sizes_dv100[8] = {
+    80, 80, 80, 80, 80, 80, 64, 64,
+};
 static const DVprofile dv_profiles[] = {
     { .dsf = 0,
       .video_stype = 0x0,
@@ -249,31 +287,31 @@ static const DVprofile dv_profiles[] = {
 const DVprofile* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile *sys,
                                   const uint8_t* frame, unsigned buf_size)
 {
-   int i, dsf, stype;
+    int i, dsf, stype;
 
-   if(buf_size < DV_PROFILE_BYTES)
-       return NULL;
+    if(buf_size < DV_PROFILE_BYTES)
+        return NULL;
 
-   dsf = (frame[3] & 0x80) >> 7;
-   stype = frame[80*5 + 48 + 3] & 0x1f;
+    dsf = (frame[3] & 0x80) >> 7;
+    stype = frame[80 * 5 + 48 + 3] & 0x1f;
 
-   /* 576i50 25Mbps 4:1:1 is a special case */
-   if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) {
-       return &dv_profiles[2];
-   }
+    /* 576i50 25Mbps 4:1:1 is a special case */
+    if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) {
+        return &dv_profiles[2];
+    }
 
-   if(codec && codec->codec_tag==AV_RL32("dvsd") &&  codec->width==720 && codec->height==576)
-       return &dv_profiles[1];
+    if(codec && codec->codec_tag==AV_RL32("dvsd") &&  codec->width==720 && codec->height==576)
+        return &dv_profiles[1];
 
-   for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
-       if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
-           return &dv_profiles[i];
+    for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
+        if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
+            return &dv_profiles[i];
 
-   /* check if old sys matches and assumes corrupted input */
-   if (sys && buf_size == sys->frame_size)
-       return sys;
+    /* check if old sys matches and assumes corrupted input */
+    if (sys && buf_size == sys->frame_size)
+        return sys;
 
-   return NULL;
+    return NULL;
 }
 
 const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys,
@@ -294,4 +332,3 @@ const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec)
 
     return NULL;
 }
-