/* 2004.02.01 first released source code for IOMP */ /* * 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 * * Based on public domain source code from: * http://www.honeypot.net/audio/ * * $Id: 28k8.c,v 1.2 2003/11/25 04:26:03 georgedon Exp $ */ #include #include #include #include #include #include #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 } };