src/amr-wb.c

   1 /* File format: AMR-WB   (c) 2007 robs@users.sourceforge.net
   2  *
   3  * This library is free software; you can redistribute it and/or modify it
   4  * under the terms of the GNU Lesser General Public License as published by
   5  * the Free Software Foundation; either version 2.1 of the License, or (at
   6  * your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this library; if not, write to the Free Software Foundation,
  15  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  16  */
  17
  18 /*
  19  * In order to use the AMR format with SoX, you need to have an
  20  * AMR library installed at SoX build time. The SoX build system
  21  * recognizes the AMR implementations available from
  22  * http://opencore-amr.sourceforge.net/
  23  */
  24
  25 #include "sox_i.h"
  26
  27 /* Common definitions: */
  28
  29 static const uint8_t amrwb_block_size[] = {18, 24, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1};
  30 static char const amrwb_magic[] = "#!AMR-WB\n";
  31 #define amr_block_size amrwb_block_size
  32 #define amr_magic amrwb_magic
  33 #define amr_priv_t amrwb_priv_t
  34 #define amr_opencore_funcs amrwb_opencore_funcs
  35 #define amr_vo_funcs amrwb_vo_funcs
  36
  37 #define AMR_CODED_MAX       61 /* NB_SERIAL_MAX */
  38 #define AMR_ENCODING        SOX_ENCODING_AMR_WB
  39 #define AMR_FORMAT_FN       lsx_amr_wb_format_fn
  40 #define AMR_FRAME           320 /* L_FRAME16k */
  41 #define AMR_MODE_MAX        8
  42 #define AMR_NAMES           "amr-wb", "awb"
  43 #define AMR_RATE            16000
  44 #define AMR_DESC            "3GPP Adaptive Multi Rate Wide-Band (AMR-WB) lossy speech compressor"
  45
  46 #ifdef DL_AMRWB
  47   #define AMR_FUNC  LSX_DLENTRY_DYNAMIC
  48 #else
  49   #define AMR_FUNC  LSX_DLENTRY_STATIC
  50 #endif /* DL_AMRWB */
  51
  52 /* OpenCore definitions: */
  53
  54 #if defined(HAVE_OPENCORE_AMRWB_DEC_IF_H) || defined(DL_AMRWB)
  55   #define AMR_OPENCORE 1
  56   #define AMR_OPENCORE_ENABLE_ENCODE 0
  57 #endif
  58
  59 #define AMR_OPENCORE_FUNC_ENTRIES(f,x) \
  60   AMR_FUNC(f,x, void*, D_IF_init,   (void)) \
  61   AMR_FUNC(f,x, void,  D_IF_decode, (void* state, const unsigned char* in, short* out, int bfi)) \
  62   AMR_FUNC(f,x, void,  D_IF_exit,   (void* state)) \
  63
  64 #define AmrDecoderInit() \
  65   D_IF_init()
  66 #define AmrDecoderDecode(state, in, out, bfi) \
  67   D_IF_decode(state, in, out, bfi)
  68 #define AmrDecoderExit(state) \
  69   D_IF_exit(state)
  70
  71 #define AMR_OPENCORE_DESC "amr-wb OpenCore library"
  72 static const char* const amr_opencore_library_names[] =
  73 {
  74 #ifdef DL_AMRWB
  75   "libopencore-amrwb",
  76   "libopencore-amrwb-0",
  77 #endif
  78   NULL
  79 };
  80
  81 /* VO definitions: */
  82
  83 #if defined(HAVE_VO_AMRWBENC_ENC_IF_H) || defined(DL_AMRWB)
  84   #define AMR_VO 1
  85 #endif
  86
  87 #define AMR_VO_FUNC_ENTRIES(f,x) \
  88   AMR_FUNC(f,x, void*, E_IF_init,     (void)) \
  89   AMR_FUNC(f,x, int,   E_IF_encode,(void* state, int16_t mode, int16_t* in, uint8_t* out, int16_t dtx)) \
  90   AMR_FUNC(f,x, void,  E_IF_exit,     (void* state)) \
  91
  92 #define AmrEncoderInit() \
  93   E_IF_init()
  94 #define AmrEncoderEncode(state, mode, in, out, forceSpeech) \
  95   E_IF_encode(state, mode, in, out, forceSpeech)
  96 #define AmrEncoderExit(state) \
  97   E_IF_exit(state)
  98
  99 #define AMR_VO_DESC "amr-wb VisualOn library"
 100 static const char* const amr_vo_library_names[] =
 101 {
 102 #ifdef DL_AMRWB
 103   "libvo-amrwbenc",
 104   "libvo-amrwbenc-0",
 105 #endif
 106   NULL
 107 };
 108
 109 #include "amr.h"