summaryrefslogtreecommitdiffstats
path: root/lib/rbcodec/codecs/libcook/cook.h
diff options
context:
space:
mode:
Diffstat (limited to 'lib/rbcodec/codecs/libcook/cook.h')
-rw-r--r--lib/rbcodec/codecs/libcook/cook.h131
1 files changed, 131 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libcook/cook.h b/lib/rbcodec/codecs/libcook/cook.h
new file mode 100644
index 0000000000..fcb437a0e1
--- /dev/null
+++ b/lib/rbcodec/codecs/libcook/cook.h
@@ -0,0 +1,131 @@
+/*
+ * 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 <inttypes.h>
+#include "ffmpeg_get_bits.h"
+#include "../librm/rm.h"
+#include "cookdata_fixpoint.h"
+
+#include "codeclib.h"
+
+#if (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024) || (CONFIG_CPU == MCF5250)
+/* PP5022/24, MCF5250 have large IRAM */
+#define IBSS_ATTR_COOK_LARGE_IRAM IBSS_ATTR
+#define ICODE_ATTR_COOK_LARGE_IRAM ICODE_ATTR
+#define ICONST_ATTR_COOK_LARGE_IRAM ICONST_ATTR
+#define IBSS_ATTR_COOK_VLCBUF
+#define ICODE_ATTR_COOK_DECODE
+
+#elif defined(CPU_S5L870X)
+/* S5L870X have even larger IRAM and it is faster to use ICODE_ATTR. */
+#define IBSS_ATTR_COOK_LARGE_IRAM IBSS_ATTR
+#define ICODE_ATTR_COOK_LARGE_IRAM ICODE_ATTR
+#define ICONST_ATTR_COOK_LARGE_IRAM ICONST_ATTR
+#define IBSS_ATTR_COOK_VLCBUF IBSS_ATTR
+#define ICODE_ATTR_COOK_DECODE ICODE_ATTR
+
+#else
+/* other CPUs IRAM is not large enough */
+#define IBSS_ATTR_COOK_LARGE_IRAM
+#define ICODE_ATTR_COOK_LARGE_IRAM
+#define ICONST_ATTR_COOK_LARGE_IRAM
+#define IBSS_ATTR_COOK_VLCBUF
+#define ICODE_ATTR_COOK_DECODE
+
+#endif
+
+typedef struct {
+ int *now;
+ int *previous;
+} cook_gains;
+
+typedef struct cook {
+ /*
+ * The following 2 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,
+ REAL_T* mlt_p);
+
+ void (* interpolate) (struct cook *q, REAL_T* buffer,
+ int gain_index, int gain_index_next);
+
+ 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;
+ int mdct_nbits; /* is this the same as one of above? */
+ /* states */
+ int random_state;
+
+ /* 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;
+
+ /* data buffers */
+
+ uint8_t decoded_bytes_buffer[1024] MEM_ALIGN_ATTR;
+ REAL_T mono_mdct_output[2048] MEM_ALIGN_ATTR;
+ REAL_T mono_previous_buffer1[1024] MEM_ALIGN_ATTR;
+ REAL_T mono_previous_buffer2[1024] MEM_ALIGN_ATTR;
+ REAL_T decode_buffer_1[1024] MEM_ALIGN_ATTR;
+ REAL_T decode_buffer_2[1024] MEM_ALIGN_ATTR;
+ /* static allocation for joint decode */
+ REAL_T decode_buffer_0[1060] MEM_ALIGN_ATTR;
+} COOKContext;
+
+int cook_decode_init(RMContext *rmctx, COOKContext *q);
+int cook_decode_frame(RMContext *rmctx,COOKContext *q,
+ int32_t *outbuffer, int *data_size,
+ const uint8_t *inbuffer, int buf_size);
+#endif /*_COOK_H */