Sorry, I forgot to add the new file ...

CVS patchset: 4798
CVS date: 2003/05/08 19:21:45

1 files changed, 555 insertions, 0 deletions

diff --git a/src/libxineadec/28k8.c b/src/libxineadec/28k8.c
new file mode 100644
index 000000000..7327c400b
--- /dev/null
+++ b/src/libxineadec/28k8.c
@@ -0,0 +1,555 @@
+/*
+ * Copyright (C) 2003 the xine project
+ *
+ * This file is part of xine, a free video player.
+ *
+ * xine is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * xine 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ * RealAudio 28k8 Decoder by Ewald Snel <ewald@rambo.its.tudelft.nl>
+ *
+ * Based on public domain source code from:
+ *   http://members.tripod.com/~ladsoft/
+ *
+ * $Id: 28k8.c,v 1.1 2003/05/08 19:21:45 esnel Exp $
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <math.h>
+
+#include "xine_internal.h"
+#include "audio_out.h"
+#include "buffer.h"
+#include "xineutils.h"
+#include "bswap.h"
+
+#define SUBBLOCK	38
+#define BLOCKSIZE	2736
+
+typedef struct {
+  audio_decoder_class_t   decoder_class;
+} ra28k8_class_t;
+
+typedef struct ra28k8_decoder_s {
+  audio_decoder_t   audio_decoder;
+
+  xine_stream_t    *stream;
+
+  int               output_open;
+  int               decoder_ok;
+
+  unsigned char     buf[BLOCKSIZE];
+  int               size;
+
+  float		    sb[41];
+  float		    lhist[10];
+  float		    output[40];
+  float		    pr1[36];
+  float		    st1a[111];
+  float		    st1b[37];
+  float		    st1[37];
+  float		    pr2[10];
+  float		    st2a[38];
+  float		    st2b[11];
+  float		    st2[11];
+
+} ra28k8_decoder_t;
+
+
+static const float ra28k8_amptable[8] = {
+   0.515625, 0.90234375, 1.57910156, 2.76342773,
+  -0.515625,-0.90234375,-1.57910156,-2.76342773
+};
+
+static const float ra28k8_codetable[128][5] = {
+  {  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	 }
+};
+
+static const float ra28k8_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
+};
+
+static const float ra28k8_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
+};
+
+static const float ra28k8_table1a[36] = {
+  0.654184103, 0.66194123,  0.669790328, 0.677732527, 0.685768902, 0.693900526,
+  0.702128589, 0.710454226, 0.718878567, 0.727402806, 0.736028135, 0.744755745,
+  0.753586829, 0.762522638, 0.771564424, 0.780713439, 0.789970934, 0.799338162,
+  0.808816493, 0.818407178, 0.828111589, 0.837931097, 0.847867012, 0.857920766,
+  0.868093729, 0.878387332, 0.888803005, 0.899342179, 0.910006344, 0.920796931,
+  0.931715488, 0.942763507, 0.953942537, 0.965254128, 0.976699829, 0.98828125
+};
+
+static const float ra28k8_table2a[10] = {
+  0.373657227, 0.41229248,  0.454956055, 0.50201416,  0.553955078,
+  0.61126709,  0.674499512, 0.74432373,  0.821289063, 0.90625
+};
+
+
+static inline float sum (float *p1, float *p2, int len) {
+  float s = 0;
+
+  while (len--) {
+    s += (*(p1++)) * (*(p2++));
+  }
+
+  return s;
+}
+
+static inline void colmul (float *out, float *in, const float *table, int len) {
+
+  while (len--) {
+    *(out++) = (*(in++)) * (*(table++));
+  }
+}
+
+static inline float clip (float a, float amin, float amax) {
+  if (a < amin)
+    return amin;
+  else if (a > amax)
+    return amax;
+  else
+    return a;
+}
+
+static inline int predict (float *in, float *tgt, int n) {
+  int x, y;
+  float f0, f1, f2, temp;
+
+  if (in[n] == 0 || in[0] <= 0) {
+    return 0;
+  }
+
+  f0 = in[0];
+
+  for (x=n; (x > 0) && (f0 > 0); x--) {
+    f1 = in[(n - x) + 1];
+
+    for (y=1; y <= (n - x); y++) {
+      f1 += in[y] * tgt[x + y];
+    }
+
+    f2  = -f1 / f0;
+    f0 +=  f1 * f2;
+
+    tgt[x] = f2;
+
+    for (y=0; y < ((n - x) + 1)>>1; y++) {
+      temp = tgt[n - y] + tgt[x + y + 1] * f2;
+      tgt[x + y + 1] += tgt[n - y] * f2;
+      tgt[n - y] = temp;
+    }
+  }
+
+  return (f0 > 0);
+}
+
+static void decode_28k8_block (ra28k8_decoder_t *this, uint8_t *in, int16_t *out) {
+  int i, j, x, z, phase, phasep, code;
+  float buffer[5], work[111], temp1[37], temp2[11], d;
+
+  for (x=0, z=0; x < 2304; x++) {
+    phasep = 5*(phase = (x & 7));
+
+    /* unpack */
+    code = ((in[0] >> z) | (in[1] << (8 - z))) & (1023 >> (~x & 1));
+
+    if (z == 7 && (x & 1)) {
+      code |= (in[2] & 1) << 9;
+    }
+
+    z  += (9 + (x & 1));
+    in += (z >> 3);
+    z  &= 7;
+
+    /* decode */
+    memmove (this->sb, &this->sb[5], 36*sizeof(float));
+
+    for (i=0; i < 5; i++) {
+      this->sb[36 + i] = -sum (&this->sb[i], this->pr1, 36);
+    }
+
+    /* convert log and do rms */
+    d = clip (32 - sum (this->pr2, this->lhist, 10), 0, 60);
+    d = pow(10, d / 20) * ra28k8_amptable[code & 7];
+
+    for (i=0; i < 5; i++) {
+      buffer[i] = ra28k8_codetable[code >> 3][i] * d;
+    }
+
+    d = sum (buffer, buffer, 5) / 5;
+    d = (d < 1) ? 0 : 10 * log10(d);
+
+    /* shift and store */
+    memmove (this->lhist, &this->lhist[1], 9*sizeof(float));
+    this->lhist[9] = d - 32;
+
+    for (i=1; i < 5; i++) {
+      for(j=0; j < i; j++) {
+	buffer[i] -= this->pr1[35 - j] * buffer[i - j - 1];
+      }
+    }
+
+    /* output */
+    for (i=0; i < 5; i++) {
+      float f = clip (this->sb[36 + i] + buffer[i], -4095, 4095);
+      this->output[phasep + i] = this->sb[36 + i] = f;
+      *(out++) = (8 * f);
+    }
+
+    if (phase == 3) {
+
+      /* rotate and multiply */
+      memmove (this->st1a, &this->st1a[40], 71*sizeof(float));
+      memcpy (&this->st1a[71], &this->output[20], 20*sizeof(float));
+      memcpy (&this->st1a[91], this->output, 20*sizeof(float));
+      memmove (this->st2a, &this->st2a[8], 30*sizeof(float));
+      memcpy (&this->st2a[30], &this->lhist[2], 4*sizeof(float));
+      memcpy (&this->st2a[34], &this->lhist[6], 4*sizeof(float));
+
+      colmul (work, this->st1a, ra28k8_table1, 111);
+
+      for (i=36; i >= 0; i--) {
+	this->st1b[i] = this->st1b[i] * (0.5625) + sum (&work[36 - i], &work[36], 40);
+	temp1[i] = this->st1b[i] + sum (&work[76 - i], &work[76], 35);
+      }
+
+      colmul (work, this->st2a, ra28k8_table2, 38);
+
+      for (i=10; i >= 0; i--) {
+	this->st2b[i] = this->st2b[i] * (0.5625) + sum (&work[10 - i], &work[10], 8);
+	temp2[i] = this->st2b[i] + sum (&work[18 - i], &work[18], 20);
+      }
+
+      /* to prevent clipping */
+      temp1[0] *= 1.00390625;
+      temp2[0] *= 1.00390625;
+
+      if (predict (temp1, this->st1, 36)) {
+	colmul (this->pr1, &this->st1[1], ra28k8_table1a, 36);
+      }
+      if (predict (temp2, this->st2, 10)) {
+	colmul (this->pr2, &this->st2[1], ra28k8_table2a, 10);
+      }
+    }
+  }
+}
+
+static void ra28k8_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
+  ra28k8_decoder_t *this = (ra28k8_decoder_t *) this_gen;
+
+  if (buf->decoder_flags & BUF_FLAG_PREVIEW) {
+
+  } else if (buf->decoder_flags & BUF_FLAG_HEADER) {
+
+    this->stream->meta_info[XINE_META_INFO_AUDIOCODEC] = strdup ("Real 28.8");
+    this->decoder_ok = 1;
+    if (!this->decoder_ok)
+      this->stream->stream_info[XINE_STREAM_INFO_AUDIO_HANDLED] = 0;
+
+  } else if (this->decoder_ok ) {
+    audio_buffer_t *audio_buffer;
+    int i, j;
+
+    if (!this->output_open) {
+      this->output_open = this->stream->audio_out->open (this->stream->audio_out,
+					this->stream, 16, 8000, AO_CAP_MODE_MONO);
+    }
+
+    /* copy and deinterleave sub-blocks */
+    i = 0;
+    j = this->size;
+
+    while (i < buf->size || j == BLOCKSIZE) {
+      if (j == BLOCKSIZE) {
+	audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);
+
+	decode_28k8_block (this, this->buf, (int16_t *) audio_buffer->mem);
+
+	audio_buffer->vpts = buf->pts;
+	audio_buffer->num_frames = 11520;
+
+	this->stream->audio_out->put_buffer (this->stream->audio_out,
+					     audio_buffer, this->stream);
+
+	j = 0;
+      } else if ((buf->size - i) >= SUBBLOCK) {
+	memcpy (&this->buf[j], &buf->content[i], SUBBLOCK);
+
+	if ((j += 12*SUBBLOCK) >= BLOCKSIZE) {
+	  if (j == (BLOCKSIZE + 11*SUBBLOCK))
+	    j  =  BLOCKSIZE;
+	  else
+	    j -= (BLOCKSIZE - SUBBLOCK);
+	}
+
+	i += SUBBLOCK;
+      } else {
+	memcpy (&this->buf[j], &buf->content[i], (buf->size - i));
+
+	j += (buf->size - i);
+	break;
+      }
+    }
+
+    this->size = j;
+  }
+}
+
+static void ra28k8_reset (audio_decoder_t *this_gen) {
+  ra28k8_decoder_t *this = (ra28k8_decoder_t *) this_gen;
+
+  this->size = 0;
+
+  memset (this->sb, 0, sizeof(this->sb));
+  memset (this->lhist, 0, sizeof(this->lhist));
+  memset (this->output, 0, sizeof(this->lhist));
+  memset (this->pr1, 0, sizeof(this->pr1));
+  memset (this->st1a, 0, sizeof(this->st1a));
+  memset (this->st1b, 0, sizeof(this->st1b));
+  memset (this->st1, 0, sizeof(this->st1));
+  memset (this->pr2, 0, sizeof(this->pr2));
+  memset (this->st2a, 0, sizeof(this->st2a));
+  memset (this->st2b, 0, sizeof(this->st2b));
+  memset (this->st2, 0, sizeof(this->st2));
+}
+
+static void ra28k8_discontinuity (audio_decoder_t *this_gen) {
+}
+
+static void ra28k8_dispose (audio_decoder_t *this_gen) {
+
+  ra28k8_decoder_t *this = (ra28k8_decoder_t *) this_gen;
+
+  if (this->output_open)
+    this->stream->audio_out->close (this->stream->audio_out, this->stream);
+  this->output_open = 0;
+
+  free (this_gen);
+}
+
+static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream) {
+
+  ra28k8_decoder_t *this ;
+
+  this = (ra28k8_decoder_t *) xine_xmalloc (sizeof (ra28k8_decoder_t));
+
+  this->audio_decoder.decode_data         = ra28k8_decode_data;
+  this->audio_decoder.reset               = ra28k8_reset;
+  this->audio_decoder.discontinuity       = ra28k8_discontinuity;
+  this->audio_decoder.dispose             = ra28k8_dispose;
+
+  this->size = 0;
+  this->stream = stream;
+
+  return &this->audio_decoder;
+}
+
+static char *get_identifier (audio_decoder_class_t *this) {
+  return "28k8";
+}
+
+static char *get_description (audio_decoder_class_t *this) {
+  return "RealAudio 28k8 decoder plugin";
+}
+
+static void dispose_class (audio_decoder_class_t *this) {
+  free (this);
+}
+
+static void *init_plugin (xine_t *xine, void *data) {
+
+  ra28k8_class_t *this ;
+
+  this = (ra28k8_class_t *) malloc (sizeof (ra28k8_class_t));
+
+  this->decoder_class.open_plugin     = open_plugin;
+  this->decoder_class.get_identifier  = get_identifier;
+  this->decoder_class.get_description = get_description;
+  this->decoder_class.dispose         = dispose_class;
+
+  return this;
+}
+
+static uint32_t audio_types[] = { 
+  BUF_AUDIO_28_8,  0
+};
+
+static decoder_info_t dec_info_audio = {
+  audio_types,         /* supported types */
+  9                    /* priority        */
+};
+
+plugin_info_t xine_plugin_info[] = {
+  /* type, API, "name", version, special_info, init_function */  
+  { PLUGIN_AUDIO_DECODER, 13, "28k8", XINE_VERSION_CODE, &dec_info_audio, init_plugin },
+  { PLUGIN_NONE, 0, "", 0, NULL, NULL }
+};