LCOV - code coverage report
Current view: top level - libswresample - options.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 8 10 80.0 %
Date: 2017-10-22 09:09:27 Functions: 2 3 66.7 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at)
       3             :  *
       4             :  * This file is part of libswresample
       5             :  *
       6             :  * libswresample is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * libswresample is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with libswresample; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #include "libavutil/opt.h"
      22             : #include "swresample_internal.h"
      23             : 
      24             : #include <float.h>
      25             : 
      26             : #define  C30DB  M_SQRT2
      27             : #define  C15DB  1.189207115
      28             : #define C__0DB  1.0
      29             : #define C_15DB  0.840896415
      30             : #define C_30DB  M_SQRT1_2
      31             : #define C_45DB  0.594603558
      32             : #define C_60DB  0.5
      33             : 
      34             : #define OFFSET(x) offsetof(SwrContext,x)
      35             : #define PARAM AV_OPT_FLAG_AUDIO_PARAM
      36             : 
      37             : static const AVOption options[]={
      38             : {"ich"                  , "set input channel count"     , OFFSET(user_in_ch_count  ), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
      39             : {"in_channel_count"     , "set input channel count"     , OFFSET(user_in_ch_count  ), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
      40             : {"och"                  , "set output channel count"    , OFFSET(user_out_ch_count ), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
      41             : {"out_channel_count"    , "set output channel count"    , OFFSET(user_out_ch_count ), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
      42             : {"uch"                  , "set used channel count"      , OFFSET(user_used_ch_count), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
      43             : {"used_channel_count"   , "set used channel count"      , OFFSET(user_used_ch_count), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
      44             : {"isr"                  , "set input sample rate"       , OFFSET( in_sample_rate), AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , INT_MAX   , PARAM},
      45             : {"in_sample_rate"       , "set input sample rate"       , OFFSET( in_sample_rate), AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , INT_MAX   , PARAM},
      46             : {"osr"                  , "set output sample rate"      , OFFSET(out_sample_rate), AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , INT_MAX   , PARAM},
      47             : {"out_sample_rate"      , "set output sample rate"      , OFFSET(out_sample_rate), AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , INT_MAX   , PARAM},
      48             : {"isf"                  , "set input sample format"     , OFFSET( in_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
      49             : {"in_sample_fmt"        , "set input sample format"     , OFFSET( in_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
      50             : {"osf"                  , "set output sample format"    , OFFSET(out_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
      51             : {"out_sample_fmt"       , "set output sample format"    , OFFSET(out_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
      52             : {"tsf"                  , "set internal sample format"  , OFFSET(user_int_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
      53             : {"internal_sample_fmt"  , "set internal sample format"  , OFFSET(user_int_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
      54             : {"icl"                  , "set input channel layout"    , OFFSET(user_in_ch_layout ), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0           }, INT64_MIN, INT64_MAX , PARAM, "channel_layout"},
      55             : {"in_channel_layout"    , "set input channel layout"    , OFFSET(user_in_ch_layout ), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0           }, INT64_MIN, INT64_MAX , PARAM, "channel_layout"},
      56             : {"ocl"                  , "set output channel layout"   , OFFSET(user_out_ch_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0           }, INT64_MIN, INT64_MAX , PARAM, "channel_layout"},
      57             : {"out_channel_layout"   , "set output channel layout"   , OFFSET(user_out_ch_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0           }, INT64_MIN, INT64_MAX , PARAM, "channel_layout"},
      58             : {"clev"                 , "set center mix level"        , OFFSET(clev           ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB                }, -32    , 32        , PARAM},
      59             : {"center_mix_level"     , "set center mix level"        , OFFSET(clev           ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB                }, -32    , 32        , PARAM},
      60             : {"slev"                 , "set surround mix level"      , OFFSET(slev           ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB                }, -32    , 32        , PARAM},
      61             : {"surround_mix_level"   , "set surround mix Level"      , OFFSET(slev           ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB                }, -32    , 32        , PARAM},
      62             : {"lfe_mix_level"        , "set LFE mix level"           , OFFSET(lfe_mix_level  ), AV_OPT_TYPE_FLOAT, {.dbl=0                     }, -32    , 32        , PARAM},
      63             : {"rmvol"                , "set rematrix volume"         , OFFSET(rematrix_volume), AV_OPT_TYPE_FLOAT, {.dbl=1.0                   }, -1000  , 1000      , PARAM},
      64             : {"rematrix_volume"      , "set rematrix volume"         , OFFSET(rematrix_volume), AV_OPT_TYPE_FLOAT, {.dbl=1.0                   }, -1000  , 1000      , PARAM},
      65             : {"rematrix_maxval"      , "set rematrix maxval"         , OFFSET(rematrix_maxval), AV_OPT_TYPE_FLOAT, {.dbl=0.0                   }, 0      , 1000      , PARAM},
      66             : 
      67             : {"flags"                , "set flags"                   , OFFSET(flags          ), AV_OPT_TYPE_FLAGS, {.i64=0                     }, 0      , UINT_MAX  , PARAM, "flags"},
      68             : {"swr_flags"            , "set flags"                   , OFFSET(flags          ), AV_OPT_TYPE_FLAGS, {.i64=0                     }, 0      , UINT_MAX  , PARAM, "flags"},
      69             : {"res"                  , "force resampling"            , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_FLAG_RESAMPLE     }, INT_MIN, INT_MAX   , PARAM, "flags"},
      70             : 
      71             : {"dither_scale"         , "set dither scale"            , OFFSET(dither.scale   ), AV_OPT_TYPE_FLOAT, {.dbl=1                     }, 0      , INT_MAX   , PARAM},
      72             : 
      73             : {"dither_method"        , "set dither method"           , OFFSET(user_dither_method),AV_OPT_TYPE_INT, {.i64=0                     }, 0      , SWR_DITHER_NB-1, PARAM, "dither_method"},
      74             : {"rectangular"          , "select rectangular dither"   , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_RECTANGULAR}, INT_MIN, INT_MAX   , PARAM, "dither_method"},
      75             : {"triangular"           , "select triangular dither"    , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_TRIANGULAR }, INT_MIN, INT_MAX   , PARAM, "dither_method"},
      76             : {"triangular_hp"        , "select triangular dither with high pass" , 0          , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_TRIANGULAR_HIGHPASS }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      77             : {"lipshitz"             , "select Lipshitz noise shaping dither" , 0             , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_LIPSHITZ}, INT_MIN, INT_MAX, PARAM, "dither_method"},
      78             : {"shibata"              , "select Shibata noise shaping dither" , 0              , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_SHIBATA }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      79             : {"low_shibata"          , "select low Shibata noise shaping dither" , 0          , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_LOW_SHIBATA }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      80             : {"high_shibata"         , "select high Shibata noise shaping dither" , 0         , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_HIGH_SHIBATA }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      81             : {"f_weighted"           , "select f-weighted noise shaping dither" , 0           , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_F_WEIGHTED }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      82             : {"modified_e_weighted"  , "select modified-e-weighted noise shaping dither" , 0  , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_MODIFIED_E_WEIGHTED }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      83             : {"improved_e_weighted"  , "select improved-e-weighted noise shaping dither" , 0  , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_IMPROVED_E_WEIGHTED }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      84             : 
      85             : {"filter_size"          , "set swr resampling filter size", OFFSET(filter_size)  , AV_OPT_TYPE_INT  , {.i64=32                    }, 0      , INT_MAX   , PARAM },
      86             : {"phase_shift"          , "set swr resampling phase shift", OFFSET(phase_shift)  , AV_OPT_TYPE_INT  , {.i64=10                    }, 0      , 24        , PARAM },
      87             : {"linear_interp"        , "enable linear interpolation" , OFFSET(linear_interp)  , AV_OPT_TYPE_BOOL , {.i64=1                     }, 0      , 1         , PARAM },
      88             : {"exact_rational"       , "enable exact rational"       , OFFSET(exact_rational) , AV_OPT_TYPE_BOOL , {.i64=1                     }, 0      , 1         , PARAM },
      89             : {"cutoff"               , "set cutoff frequency ratio"  , OFFSET(cutoff)         , AV_OPT_TYPE_DOUBLE,{.dbl=0.                    }, 0      , 1         , PARAM },
      90             : 
      91             : /* duplicate option in order to work with avconv */
      92             : {"resample_cutoff"      , "set cutoff frequency ratio"  , OFFSET(cutoff)         , AV_OPT_TYPE_DOUBLE,{.dbl=0.                    }, 0      , 1         , PARAM },
      93             : 
      94             : {"resampler"            , "set resampling Engine"       , OFFSET(engine)         , AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , SWR_ENGINE_NB-1, PARAM, "resampler"},
      95             : {"swr"                  , "select SW Resampler"         , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_ENGINE_SWR        }, INT_MIN, INT_MAX   , PARAM, "resampler"},
      96             : {"soxr"                 , "select SoX Resampler"        , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_ENGINE_SOXR       }, INT_MIN, INT_MAX   , PARAM, "resampler"},
      97             : {"precision"            , "set soxr resampling precision (in bits)"
      98             :                                                         , OFFSET(precision)      , AV_OPT_TYPE_DOUBLE,{.dbl=20.0                  }, 15.0   , 33.0      , PARAM },
      99             : {"cheby"                , "enable soxr Chebyshev passband & higher-precision irrational ratio approximation"
     100             :                                                         , OFFSET(cheby)          , AV_OPT_TYPE_BOOL , {.i64=0                     }, 0      , 1         , PARAM },
     101             : {"min_comp"             , "set minimum difference between timestamps and audio data (in seconds) below which no timestamp compensation of either kind is applied"
     102             :                                                         , OFFSET(min_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=FLT_MAX               }, 0      , FLT_MAX   , PARAM },
     103             : {"min_hard_comp"        , "set minimum difference between timestamps and audio data (in seconds) to trigger padding/trimming the data."
     104             :                                                         , OFFSET(min_hard_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=0.1                   }, 0      , INT_MAX   , PARAM },
     105             : {"comp_duration"        , "set duration (in seconds) over which data is stretched/squeezed to make it match the timestamps."
     106             :                                                         , OFFSET(soft_compensation_duration),AV_OPT_TYPE_FLOAT ,{.dbl=1                     }, 0      , INT_MAX   , PARAM },
     107             : {"max_soft_comp"        , "set maximum factor by which data is stretched/squeezed to make it match the timestamps."
     108             :                                                         , OFFSET(max_soft_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=0                     }, INT_MIN, INT_MAX   , PARAM },
     109             : {"async"                , "simplified 1 parameter audio timestamp matching, 0(disabled), 1(filling and trimming), >1(maximum stretch/squeeze in samples per second)"
     110             :                                                         , OFFSET(async)          , AV_OPT_TYPE_FLOAT ,{.dbl=0                     }, INT_MIN, INT_MAX   , PARAM },
     111             : {"first_pts"            , "Assume the first pts should be this value (in samples)."
     112             :                                                         , OFFSET(firstpts_in_samples), AV_OPT_TYPE_INT64 ,{.i64=AV_NOPTS_VALUE    }, INT64_MIN,INT64_MAX, PARAM },
     113             : 
     114             : { "matrix_encoding"     , "set matrixed stereo encoding" , OFFSET(matrix_encoding), AV_OPT_TYPE_INT   ,{.i64 = AV_MATRIX_ENCODING_NONE}, AV_MATRIX_ENCODING_NONE,     AV_MATRIX_ENCODING_NB-1, PARAM, "matrix_encoding" },
     115             :     { "none",  "select none",               0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_NONE  }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
     116             :     { "dolby", "select Dolby",              0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DOLBY }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
     117             :     { "dplii", "select Dolby Pro Logic II", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DPLII }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
     118             : 
     119             : { "filter_type"         , "select swr filter type"      , OFFSET(filter_type)    , AV_OPT_TYPE_INT  , { .i64 = SWR_FILTER_TYPE_KAISER }, SWR_FILTER_TYPE_CUBIC, SWR_FILTER_TYPE_KAISER, PARAM, "filter_type" },
     120             :     { "cubic"           , "select cubic"                , 0                      , AV_OPT_TYPE_CONST, { .i64 = SWR_FILTER_TYPE_CUBIC            }, INT_MIN, INT_MAX, PARAM, "filter_type" },
     121             :     { "blackman_nuttall", "select Blackman Nuttall windowed sinc", 0             , AV_OPT_TYPE_CONST, { .i64 = SWR_FILTER_TYPE_BLACKMAN_NUTTALL }, INT_MIN, INT_MAX, PARAM, "filter_type" },
     122             :     { "kaiser"          , "select Kaiser windowed sinc" , 0                      , AV_OPT_TYPE_CONST, { .i64 = SWR_FILTER_TYPE_KAISER           }, INT_MIN, INT_MAX, PARAM, "filter_type" },
     123             : 
     124             : { "kaiser_beta"         , "set swr Kaiser window beta"  , OFFSET(kaiser_beta)    , AV_OPT_TYPE_DOUBLE  , {.dbl=9                     }, 2      , 16        , PARAM },
     125             : 
     126             : { "output_sample_bits"  , "set swr number of output sample bits", OFFSET(dither.output_sample_bits), AV_OPT_TYPE_INT  , {.i64=0   }, 0      , 64        , PARAM },
     127             : {0}
     128             : };
     129             : 
     130           0 : static const char* context_to_name(void* ptr) {
     131           0 :     return "SWR";
     132             : }
     133             : 
     134             : static const AVClass av_class = {
     135             :     .class_name                = "SWResampler",
     136             :     .item_name                 = context_to_name,
     137             :     .option                    = options,
     138             :     .version                   = LIBAVUTIL_VERSION_INT,
     139             :     .log_level_offset_offset   = OFFSET(log_level_offset),
     140             :     .parent_log_context_offset = OFFSET(log_ctx),
     141             :     .category                  = AV_CLASS_CATEGORY_SWRESAMPLER,
     142             : };
     143             : 
     144       60585 : const AVClass *swr_get_class(void)
     145             : {
     146       60585 :     return &av_class;
     147             : }
     148             : 
     149        1210 : av_cold struct SwrContext *swr_alloc(void){
     150        1210 :     SwrContext *s= av_mallocz(sizeof(SwrContext));
     151        1210 :     if(s){
     152        1210 :         s->av_class= &av_class;
     153        1210 :         av_opt_set_defaults(s);
     154             :     }
     155        1210 :     return s;
     156             : }

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