1 files changed, 122 insertions, 0 deletions

diff --git a/apps/codecs/libcook/cook.h b/apps/codecs/libcook/cook.h
new file mode 100644
index 0000000000..8d4c078f1a
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+++ b/apps/codecs/libcook/cook.h
@@ -0,0 +1,122 @@
+/*
+ * COOK compatible decoder
+ * Copyright (c) 2003 Sascha Sommer
+ * Copyright (c) 2005 Benjamin Larsson
+ *
+ * This file is taken from 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 2.1 of the License, or (at your option) any later version.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _COOK_H
+#define _COOK_H
+
+#include <stdint.h>
+#include "libavutil/lfg.h"
+#include "bitstream.h"
+#include "dsputil.h"
+#include "bytestream.h"
+#include "rm2wav.h"
+
+typedef struct {
+    int *now;
+    int *previous;
+} cook_gains;
+
+typedef struct cook {
+    /*
+     * The following 5 functions provide the lowlevel arithmetic on
+     * the internal audio buffers.
+     */
+    void (* scalar_dequant)(struct cook *q, int index, int quant_index,
+                            int* subband_coef_index, int* subband_coef_sign,
+                            float* mlt_p);
+
+    void (* decouple) (struct cook *q,
+                       int subband,
+                       float f1, float f2,
+                       float *decode_buffer,
+                       float *mlt_buffer1, float *mlt_buffer2);
+
+    void (* imlt_window) (struct cook *q, float *buffer1,
+                          cook_gains *gains_ptr, float *previous_buffer);
+
+    void (* interpolate) (struct cook *q, float* buffer,
+                          int gain_index, int gain_index_next);
+
+    void (* saturate_output) (struct cook *q, int chan, int16_t *out);
+
+    GetBitContext       gb;
+    int                 frame_number;
+    int                 block_align;
+    int                 extradata_size;
+    /* stream data */
+    int                 nb_channels;
+    int                 joint_stereo;
+    int                 bit_rate;
+    int                 sample_rate;
+    int                 samples_per_channel;
+    int                 samples_per_frame;
+    int                 subbands;
+    int                 log2_numvector_size;
+    int                 numvector_size;                //1 << log2_numvector_size;
+    int                 js_subband_start;
+    int                 total_subbands;
+    int                 num_vectors;
+    int                 bits_per_subpacket;
+    int                 cookversion;
+    /* states */
+    AVLFG               random_state;
+    /* transform data */
+    MDCTContext         mdct_ctx;
+    float*              mlt_window;
+
+    /* gain buffers */
+    cook_gains          gains1;
+    cook_gains          gains2;
+    int                 gain_1[9];
+    int                 gain_2[9];
+    int                 gain_3[9];
+    int                 gain_4[9];
+
+    /* VLC data */
+    int                 js_vlc_bits;
+    VLC                 envelope_quant_index[13];
+    VLC                 sqvh[7];          //scalar quantization
+    VLC                 ccpl;             //channel coupling
+
+    /* generatable tables and related variables */
+    int                 gain_size_factor;
+    float               gain_table[23];
+
+    /* data buffers */
+
+    uint8_t*            decoded_bytes_buffer;
+    float mono_mdct_output[2048] __attribute__ ((aligned(16))); //DECLARE_ALIGNED_16(float,mono_mdct_output[2048]);
+    float               mono_previous_buffer1[1024];
+    float               mono_previous_buffer2[1024];
+    float               decode_buffer_1[1024];
+    float               decode_buffer_2[1024];
+    float               decode_buffer_0[1060]; /* static allocation for joint decode */
+
+    const float         *cplscales[5];
+} COOKContext;
+
+av_cold int cook_decode_init(RMContext *rmctx, COOKContext *q);
+int cook_decode_frame(RMContext *rmctx,COOKContext *q,
+                      int16_t *outbuffer, int *data_size,
+                      const uint8_t *inbuffer, int buf_size);
+av_cold int cook_decode_close(COOKContext *q);
+#endif