1000l to myself - get correct quantization for blocks 1 and 2
[ffmpeg.git] / libavcodec / ra288.c
index 7a63869..9ba5209 100644 (file)
  * RealAudio 2.0 (28.8K)
  * Copyright (c) 2003 the ffmpeg project
  *
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "avcodec.h"
+#include "ra288.h"
+
 typedef struct {
-       float   history[8];
-       float   output[40];
-       float   pr1[36];
-       float   pr2[10];
-       int     phase, phasep;
-
-       float st1a[111],st1b[37],st1[37];
-       float st2a[38],st2b[11],st2[11];
-       float sb[41];
-       float lhist[10];
+        float   history[8];
+        float   output[40];
+        float   pr1[36];
+        float   pr2[10];
+        int     phase, phasep;
+
+        float   st1a[111],st1b[37],st1[37];
+        float   st2a[38],st2b[11],st2[11];
+        float   sb[41];
+        float   lhist[10];
 } Real288_internal;
 
-const float amptable[8]={ 0.515625, 0.90234375, 1.57910156, 2.76342773,
-                         -0.515625,-0.90234375,-1.57910156,-2.76342773 };
-
-const float codetable[640]={
-        0.326171875,   -1.4404296875,  -0.6123046875,  -0.8740234375,  -1.24658203125,
-       -2.45703125,    -2.23486328125, -0.51025390625,  1.419921875,    1.6201171875,
-       -1.37646484375, -1.30712890625, -0.462890625,   -1.37939453125, -2.1728515625,
-       -3.26123046875, -0.166015625,    0.7236328125,  -0.623046875,    0.6162109375,
-       -0.2744140625,  -3.29931640625,  0.62548828125,  0.08740234375, -0.6220703125,
-       -1.2265625,     -3.4814453125,  -2.40478515625,  3.37548828125,  1.17724609375,
-       -1.2099609375,  -0.076171875,    2.28662109375, -1.89111328125,  0,
-       -4.0078125,      1.044921875,   -0.2333984375,  -1.35986328125,  0.26025390625,
-        0.92236328125,  1.34716796875,  0.67431640625, -3.39599609375, -2.88720703125,
-        2.4814453125,  -1.201171875,   -2.8212890625,   0.87744140625,  0.27734375,
-       -1.078125,      -1.61572265625, -2.20849609375, -3.044921875,   -3.66455078125,
-       -1.32763671875,  2.1279296875,  -1.458984375,   -0.56103515625,  1.30078125,
-        0.61474609375,  0.48583984375,  1.32373046875, -1.203125,      -5.0732421875,
-        0.8408203125,  -3.69580078125, -1.3388671875,   1.06005859375, -1.13720703125,
-        0.50390625,     0.36474609375, -0.4189453125,  -3.8798828125,  -6.27099609375,
-        1.5166015625,   2.37109375,    -2.04736328125, -1.24072265625,  0.50537109375,
-        0.9091796875,  -0.46875,       -3.236328125,    0.2001953125,   2.8720703125,
-       -1.21728515625, -1.283203125,   -1.953125,      -0.029296875,    3.5166015625,
-       -1.3046875,      0.7060546875,   0.75,          -1.87060546875,  0.60205078125,
-       -2.5888671875,   3.375,          0.77587890625, -2.04443359375,  1.78955078125,
-       -1.6875,        -3.9892578125,  -3.76416015625,  0.67578125,     2.2939453125,
-       -2.29443359375, -3.03173828125, -5.45703125,     3.95703125,     8.2177734375,
-        0.4541015625,   3.419921875,    0.61962890625, -4.38330078125,  1.25341796875,
-        2.27001953125,  5.763671875,    1.68017578125, -2.76220703125,  0.58544921875,
-        1.2412109375,  -0.08935546875, -4.32568359375, -3.89453125,     1.5771484375,
-       -1.40234375,    -0.98193359375, -4.74267578125, -4.09423828125,  6.33935546875,
-        1.5068359375,   1.044921875,   -1.796875,      -4.70849609375, -1.4140625,
-       -3.71533203125,  3.18115234375, -1.11474609375, -1.2314453125,   3.091796875,
-       -1.62744140625, -2.744140625,   -4.4580078125,  -5.43505859375,  2.70654296875,
-       -0.19873046875, -3.28173828125, -8.5283203125,  -1.41064453125,  5.6484375,
-        1.802734375,    3.318359375,   -0.1279296875,  -5.2958984375,  -0.90625,
-        3.55224609375,  6.544921875,   -1.45947265625, -5.17333984375,  2.41015625,
-        0.119140625,   -1.08349609375,  1.296875,       1.84375,       -2.642578125,
-       -1.97412109375, -2.8974609375,   1.04052734375,  0.42138671875, -1.3994140625,
-       -1.6123046875,   0.85107421875, -0.9794921875,  -0.0625,        -1.001953125,
-       -3.10595703125,  1.6318359375,  -0.77294921875, -0.01025390625,  0.5576171875,
-       -1.87353515625, -0.89404296875,  3.12353515625,  1.24267578125, -1.390625,
-       -4.556640625,   -3.1875,         2.59228515625,  0.9697265625,  -1.09619140625,
-       -2.1923828125,   0.365234375,    0.94482421875, -1.47802734375, -0.24072265625,
-       -4.51904296875,  2.6201171875,   1.55908203125, -2.19384765625,  0.87109375,
-        2.3359375,     -0.1806640625,   0.9111328125,   0.51611328125, -0.92236328125,
-        3.5849609375,  -1.3134765625,  -1.25830078125,  0.330078125,   -0.29833984375,
-       -0.2451171875,   1.09130859375, -0.9033203125,  -0.86767578125, -1.00048828125,
-        0.49365234375,  1.89453125,    -1.20361328125,  1.07861328125, -0.07421875,
-        1.265625,       1.38134765625,  2.728515625,    1.38623046875, -3.5673828125,
-       -1.48876953125, -2.4013671875,   2.90771484375,  4.49267578125, -2.17138671875,
-        0.34033203125,  1.908203125,    2.8310546875,  -2.17333984375, -2.267578125,
-       -1.03564453125,  2.658203125,   -1.2548828125,   0.15673828125, -0.5869140625,
-        1.3896484375,  -1.0185546875,   1.724609375,    0.2763671875,  -0.345703125,
-       -2.08935546875,  0.4638671875,   2.431640625,    1.83056640625,  0.220703125,
-       -1.212890625,    1.7099609375,   0.83935546875, -0.0830078125,   0.1162109375,
-       -1.67724609375,  0.12841796875,  1.0322265625,  -0.97900390625,  1.15283203125,
-       -3.5830078125,  -0.58984375,     4.56396484375, -0.59375,       -1.95947265625,
-       -6.5908203125,  -0.21435546875,  3.919921875,   -2.06640625,     0.17626953125,
-       -1.82080078125,  2.65283203125,  0.978515625,   -2.30810546875, -0.61474609375,
-       -1.9462890625,   3.78076171875,  4.11572265625, -1.80224609375, -0.48193359375,
-        2.5380859375,  -0.20654296875,  0.5615234375,  -0.62548828125,  0.3984375,
-        3.61767578125,  2.00634765625, -1.92822265625,  1.3134765625,   0.0146484384313,
-        0.6083984375,   1.49169921875, -0.01708984375, -0.6689453125,  -0.1201171875,
-       -0.72705078125,  2.75146484375, -0.3310546875,  -1.28271484375,  1.5478515625,
-        2.3583984375,  -2.23876953125,  0.98046875,    -0.5185546875,   0.39013671875,
-       -0.06298828125,  0.35009765625,  2.2431640625,   7.29345703125,  5.2275390625,
-        0.20361328125,  1.34716796875,  0.9033203125,  -2.46923828125, -0.56298828125,
-       -1.89794921875,  3.59423828125, -2.81640625,     2.09228515625,  0.3251953125,
-        0.70458984375, -0.4580078125,   0.009765625,   -1.03466796875, -0.82861328125,
-       -1.8125,        -1.6611328125,  -1.080078125,    0.0537109375,   1.04296875,
-       -1.44140625,     0.005859375,   -0.765625,      -1.708984375,   -0.90576171875,
-       -0.64208984375, -0.84521484375,  0.56640625,    -0.2724609375,   0.83447265625,
-        0.04296875,    -2.23095703125,  0.0947265625,  -0.2216796875,  -1.44384765625,
-       -1.38623046875, -0.8134765625,  -0.13330078125,  1.017578125,   -0.07568359375,
-       -0.09228515625, -1.16015625,     0.81201171875, -0.5078125,     -1.19580078125,
-       -1.3876953125,  -0.66845703125,  0.310546875,   -0.12109375,    -1.30712890625,
-        0.74072265625,  0.03857421875, -1.47119140625, -1.79150390625, -0.47509765625,
-        0.93408203125, -1.21728515625, -2.59375,       -0.36572265625,  0.62060546875,
-       -1.41748046875, -1.623046875,   -1.833984375,   -1.8017578125,  -0.89306640625,
-       -1.42236328125, -0.75537109375, -1.34765625,    -0.6865234375,   0.548828125,
-        0.900390625,   -0.8955078125,   0.22265625,     0.3447265625,  -2.0859375,
-        0.22802734375, -2.078125,      -0.93212890625,  0.74267578125,  0.5537109375,
-       -0.06201171875, -0.4853515625,  -0.31103515625, -0.72802734375, -3.1708984375,
-        0.42626953125, -0.99853515625, -1.869140625,   -1.36328125,    -0.2822265625,
-        1.12841796875, -0.88720703125,  1.28515625,    -1.490234375,    0.9609375,
-        0.31298828125,  0.5830078125,   0.92431640625,  2.00537109375,  3.0966796875,
-       -0.02197265625,  0.5849609375,   1.0546875,     -0.70751953125,  1.07568359375,
-       -0.978515625,    0.83642578125,  1.7177734375,   1.294921875,    2.07568359375,
-        1.43359375,    -1.9375,         0.625,          0.06396484375, -0.720703125,
-        1.38037109375,  0.00390625,    -0.94140625,     1.2978515625,   1.71533203125,
-        1.56201171875, -0.3984375,      1.31201171875, -0.85009765625, -0.68701171875,
-        1.439453125,    1.96728515625,  0.1923828125,  -0.12353515625,  0.6337890625,
-        2.0927734375,   0.02490234375, -2.20068359375, -0.015625,      -0.32177734375,
-        1.90576171875,  2.7568359375,  -2.728515625,   -1.265625,       2.78662109375,
-       -0.2958984375,   0.6025390625,  -0.78466796875, -2.53271484375,  0.32421875,
-       -0.25634765625,  1.767578125,   -1.0703125,     -1.23388671875,  0.83349609375,
-        2.09814453125, -1.58740234375, -1.11474609375,  0.396484375,   -1.10546875,
-        2.81494140625,  0.2578125,     -1.60498046875,  0.66015625,     0.81640625,
-        1.33544921875,  0.60595703125, -0.53857421875, -1.59814453125, -1.66357421875,
-        1.96923828125,  0.8046875,     -1.44775390625, -0.5732421875,   0.705078125,
-        0.0361328125,   0.4482421875,   0.97607421875,  0.44677734375, -0.5009765625,
-       -1.21875,       -0.78369140625,  0.9931640625,   1.4404296875,   0.11181640625,
-       -1.05859375,     0.99462890625,  0.00732421921566,-0.6171875,   -0.1015625,
-       -1.734375,       0.7470703125,   0.28369140625,  0.72802734375,  0.4697265625,
-       -1.27587890625, -1.1416015625,   1.76806640625, -0.7265625,     -1.06689453125,
-       -0.85302734375,  0.03955078125,  2.7041015625,   0.69921875,    -1.10205078125,
-       -0.49755859375,  0.42333984375,  0.1044921875,  -1.115234375,   -0.7373046875,
-       -0.822265625,    1.375,         -0.11181640625,  1.24560546875, -0.67822265625,
-        1.32177734375,  0.24609375,     0.23388671875,  1.35888671875, -0.49267578125,
-        1.22900390625, -0.72607421875, -0.779296875,    0.30322265625,  0.94189453125,
-       -0.072265625,    1.0771484375,  -2.09375,        0.630859375,   -0.68408203125,
-       -0.25732421875,  0.60693359375, -1.33349609375,  0.93212890625,  0.625,
-        1.04931640625, -0.73291015625,  1.80078125,     0.2978515625,  -2.24169921875,
-        1.6142578125,  -1.64501953125,  0.91552734375,  1.775390625,   -0.59423828125,
-        1.2568359375,   1.22705078125,  0.70751953125, -1.5009765625,  -2.43115234375,
-        0.3974609375,   0.8916015625,  -1.21923828125,  2.0673828125,  -1.99072265625,
-        0.8125,        -0.107421875,    1.6689453125,   0.4892578125,   0.54443359375,
-        0.38134765625,  0.8095703125,   1.91357421875,  2.9931640625,   1.533203125,
-        0.560546875,    1.98486328125,  0.740234375,    0.39794921875,  0.09716796875,
-        0.58154296875,  1.21533203125,  1.25048828125,  1.18212890625,  1.19287109375,
-        0.3759765625,  -2.88818359375,  2.69287109375, -0.1796875,     -1.56201171875,
-        0.5810546875,   0.51123046875,  1.8271484375,   3.38232421875, -1.02001953125,
-        0.142578125,    1.51318359375,  2.103515625,   -0.3701171875,  -1.19873046875,
-        0.25537109375,  1.91455078125,  1.974609375,    0.6767578125,   0.04150390625,
-        2.13232421875,  0.4912109375,  -0.611328125,   -0.7158203125,  -0.67529296875,
-        1.880859375,    0.77099609375, -0.03759765625,  1.0078125,      0.423828125,
-        2.49462890625,  1.42529296875, -0.0986328125,   0.17529296875, -0.24853515625,
-        1.7822265625,   1.5654296875,   1.12451171875,  0.82666015625,  0.6328125,
-        1.41845703125, -1.90771484375,  0.11181640625, -0.583984375,   -1.138671875,
-        2.91845703125, -1.75048828125,  0.39306640625,  1.86767578125, -1.5322265625,
-        1.8291015625,  -0.2958984375,   0.02587890625, -0.13134765625, -1.61181640625,
-        0.2958984375,   0.9853515625,  -0.642578125,    1.984375,       0.1943359375
-};
-
-const float table1[111]={
-       0.576690972,    0.580838025,    0.585013986,    0.589219987,    0.59345597,     0.597723007,
-       0.602020264,    0.606384277,    0.610748291,    0.615142822,    0.619598389,    0.624084473,
-       0.628570557,    0.633117676,    0.637695313,    0.642272949,    0.646911621,    0.651580811,
-       0.656280518,    0.66104126,     0.665802002,    0.670593262,    0.675445557,    0.680328369,
-       0.685241699,    0.690185547,    0.695159912,    0.700164795,    0.705230713,    0.710327148,
-       0.715454102,    0.720611572,    0.725830078,    0.731048584,    0.736328125,    0.741638184,
-       0.747009277,    0.752380371,    0.7578125,      0.763305664,    0.768798828,    0.774353027,
-       0.779937744,    0.785583496,    0.791229248,    0.796936035,    0.802703857,    0.808502197,
-       0.814331055,    0.820220947,    0.826141357,    0.832092285,    0.838104248,    0.844146729,
-       0.850250244,    0.856384277,    0.862548828,    0.868774414,    0.875061035,    0.881378174,
-       0.88772583,     0.894134521,    0.900604248,    0.907104492,    0.913635254,    0.920227051,
-       0.926879883,    0.933563232,    0.940307617,    0.94708252,     0.953918457,    0.96081543,
-       0.96774292,     0.974731445,    0.981781006,    0.988861084,    0.994842529,    0.998565674,
-       0.999969482,    0.99911499,     0.996002197,    0.990600586,    0.982910156,    0.973022461,
-       0.960876465,    0.946533203,    0.930053711,    0.911437988,    0.89074707,     0.868041992,
-       0.843322754,    0.816680908,    0.788208008,    0.757904053,    0.725891113,    0.692199707,
-       0.656921387,    0.620178223,    0.582000732,    0.542480469,    0.501739502,    0.459838867,
-       0.416900635,    0.373016357,    0.328277588,    0.282775879,    0.236663818,    0.189971924,
-       0.142852783,    0.0954284668,   0.0477600098
-};
-
-const float table2[38]={
-       0.505699992,    0.524200022,    0.54339999,     0.563300014,    0.583953857,    0.60534668,
-       0.627502441,    0.650482178,    0.674316406,    0.699005127,    0.724578857,    0.75112915,
-       0.778625488,    0.807128906,    0.836669922,    0.86730957,     0.899078369,    0.932006836,
-       0.961486816,    0.982757568,    0.995635986,    1,              0.995819092,    0.983154297,
-       0.96206665,     0.932769775,    0.895507813,    0.850585938,    0.798400879,    0.739379883,
-       0.674072266,    0.602996826,    0.526763916,    0.446014404,    0.361480713,    0.273834229,
-       0.183868408,    0.0923461914
-};
-
-const float table1a[36]={
-       0.98828125,     0.976699829,    0.965254128,    0.953942537,    0.942763507,    0.931715488,
-       0.920796931,    0.910006344,    0.899342179,    0.888803005,    0.878387332,    0.868093729,
-       0.857920766,    0.847867012,    0.837931097,    0.828111589,    0.818407178,    0.808816493,
-       0.799338162,    0.789970934,    0.780713439,    0.771564424,    0.762522638,    0.753586829,
-       0.744755745,    0.736028135,    0.727402806,    0.718878567,    0.710454226,    0.702128589,
-       0.693900526,    0.685768902,    0.677732527,    0.669790328,    0.66194123,     0.654184103
-};
-
-const float table2a[10]={
-       0.90625,        0.821289063,    0.74432373,     0.674499512,    0.61126709,
-       0.553955078,    0.50201416,     0.454956055,    0.41229248,     0.373657227
-};
-
-
 static int ra288_decode_init(AVCodecContext * avctx)
 {
-       Real288_internal *glob=avctx->priv_data;
-       memset(glob,0,sizeof(Real288_internal));
-       return 0;
+        Real288_internal *glob=avctx->priv_data;
+        memset(glob,0,sizeof(Real288_internal));
+        return 0;
 }
 
 static void prodsum(float *tgt, float *src, int len, int n);
@@ -227,7 +49,7 @@ static void colmult(float *tgt, float *m1, const float *m2, int n);
 
 
 /* initial decode */
-static void unpack(unsigned short *tgt, unsigned char *src, int len)
+static void unpack(unsigned short *tgt, unsigned char *src, unsigned int len)
 {
   int x,y,z;
   int n,temp;
@@ -289,7 +111,7 @@ static void decode(Real288_internal *glob, unsigned int input)
   for (sum=32,x=10;x--;sum-=glob->pr2[x]*glob->lhist[x]);
   if (sum<0) sum=0; else if (sum>60) sum=60;
 
-  sumsum=exp(sum*0.1151292546497)*f;   /* pow(10.0,sum/20)*f */
+  sumsum=exp(sum*0.1151292546497)*f;    /* pow(10.0,sum/20)*f */
   for (sum=0,x=5;x--;) { buffer[x]=table[x]*sumsum; sum+=buffer[x]*buffer[x]; }
   if ((sum/=5)<1) sum=1;
 
@@ -348,7 +170,7 @@ static void co(int n, int i, int j, float *in, float *out, float *st1, float *st
 {
   int a,b,c;
   unsigned int x;
-  float *fp,*fp2;
+  float *fp;
   float buffer1[37];
   float buffer2[37];
   float work[111];
@@ -360,7 +182,7 @@ static void co(int n, int i, int j, float *in, float *out, float *st1, float *st
     if (x==c) fp=in;
     work[x]=*(table++)*(*(st1++)=*(fp++));
   }
-  
+
   prodsum(buffer1,work+n,i,n);
   prodsum(buffer2,work+a,j,n);
 
@@ -386,14 +208,13 @@ static void prodsum(float *tgt, float *src, int len, int n)
   }
 }
 
-void * decode_block(AVCodecContext * avctx, unsigned char *in, signed short int *out)
+static void * decode_block(AVCodecContext * avctx, unsigned char *in, signed short int *out,unsigned len)
 {
   int x,y;
   Real288_internal *glob=avctx->priv_data;
-  int cfs=((short*)(avctx->extradata))[3]; /* coded frame size 38 */
-  unsigned short int buffer[cfs];
+  unsigned short int buffer[len];
 
-  unpack(buffer,in,cfs);
+  unpack(buffer,in,len);
   for (x=0;x<32;x++)
   {
     glob->phasep=(glob->phase=x&7)*5;
@@ -409,46 +230,19 @@ static int ra288_decode_frame(AVCodecContext * avctx,
             void *data, int *data_size,
             uint8_t * buf, int buf_size)
 {
-  if(avctx->extradata_size>=6)
-  {
-//((short*)(avctx->extradata))[0]; /* subpacket size */
-//((short*)(avctx->extradata))[1]; /* subpacket height */
-//((short*)(avctx->extradata))[2]; /* subpacket flavour */
-//((short*)(avctx->extradata))[3]; /* coded frame size */
-//((short*)(avctx->extradata))[4]; /* codec's data length  */
-//((short*)(avctx->extradata))[5...] /* codec's data */
-    int z,bret;
     void *datao;
-    int w=avctx->block_align; /* 228 */
-    int h=((short*)(avctx->extradata))[1]; /* 12 */
-    int cfs=((short*)(avctx->extradata))[3]; /* coded frame size 38 */
-    int i,j;
-    unsigned char tb[h*w], *ptb;
-    if(buf_size<w*h)
+
+    if (buf_size < avctx->block_align)
     {
-       fprintf(stderr,"ffra288: Error! Input buffer is too small [%d<%d]\n",buf_size,w*h);
-       return 0;
+        av_log(avctx, AV_LOG_ERROR, "ffra288: Error! Input buffer is too small [%d<%d]\n",buf_size,avctx->block_align);
+        return 0;
     }
+
     datao = data;
-    ptb = buf;
-    /* Phase 0: deinterleave */
-    for (j = 0; j < h; j++)
-       for (i = 0; i < h/2; i++)
-    {
-           memcpy(&tb[i*2*w+j*cfs],ptb,cfs);
-           ptb += cfs;
-    }
-    /* Phase 1: decode */
-    bret = ptb-buf;
-    for(z=0;z<bret;z+=cfs) { decode_block(avctx,&tb[z],(signed short *)data); data += 320; }
-    *data_size = data - datao;
-    return bret;
-  }
-  else
-  {
-    fprintf(stderr,"ffra288: Error: need extra data!!!\n");
-    return 0;
-  }
+    data = decode_block(avctx, buf, (signed short *)data, avctx->block_align);
+
+    *data_size = (char *)data - (char *)datao;
+    return avctx->block_align;
 }
 
 AVCodec ra_288_decoder =