LCOV - code coverage report
Current view: top level - libavresample - options.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 2 9 22.2 %
Date: 2017-12-14 19:11:59 Functions: 1 2 50.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg 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             :  * FFmpeg 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 FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #include <stdint.h>
      22             : 
      23             : #include "libavutil/mathematics.h"
      24             : #include "libavutil/mem.h"
      25             : #include "libavutil/opt.h"
      26             : #include "avresample.h"
      27             : #include "internal.h"
      28             : #include "audio_mix.h"
      29             : 
      30             : /**
      31             :  * @file
      32             :  * Options definition for AVAudioResampleContext.
      33             :  */
      34             : 
      35             : #define OFFSET(x) offsetof(AVAudioResampleContext, x)
      36             : #define PARAM AV_OPT_FLAG_AUDIO_PARAM
      37             : 
      38             : static const AVOption avresample_options[] = {
      39             :     { "in_channel_layout",      "Input Channel Layout",     OFFSET(in_channel_layout),      AV_OPT_TYPE_INT64,  { .i64 = 0              }, INT64_MIN,            INT64_MAX,              PARAM },
      40             :     { "in_sample_fmt",          "Input Sample Format",      OFFSET(in_sample_fmt),          AV_OPT_TYPE_INT,    { .i64 = AV_SAMPLE_FMT_S16 }, AV_SAMPLE_FMT_U8,     AV_SAMPLE_FMT_NB-1,     PARAM },
      41             :     { "in_sample_rate",         "Input Sample Rate",        OFFSET(in_sample_rate),         AV_OPT_TYPE_INT,    { .i64 = 48000          }, 1,                    INT_MAX,                PARAM },
      42             :     { "out_channel_layout",     "Output Channel Layout",    OFFSET(out_channel_layout),     AV_OPT_TYPE_INT64,  { .i64 = 0              }, INT64_MIN,            INT64_MAX,              PARAM },
      43             :     { "out_sample_fmt",         "Output Sample Format",     OFFSET(out_sample_fmt),         AV_OPT_TYPE_INT,    { .i64 = AV_SAMPLE_FMT_S16 }, AV_SAMPLE_FMT_U8,     AV_SAMPLE_FMT_NB-1,     PARAM },
      44             :     { "out_sample_rate",        "Output Sample Rate",       OFFSET(out_sample_rate),        AV_OPT_TYPE_INT,    { .i64 = 48000          }, 1,                    INT_MAX,                PARAM },
      45             :     { "internal_sample_fmt",    "Internal Sample Format",   OFFSET(internal_sample_fmt),    AV_OPT_TYPE_INT,    { .i64 = AV_SAMPLE_FMT_NONE }, AV_SAMPLE_FMT_NONE,   AV_SAMPLE_FMT_NB-1,     PARAM, "internal_sample_fmt" },
      46             :         {"u8" ,  "8-bit unsigned integer",        0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_U8   }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      47             :         {"s16",  "16-bit signed integer",         0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_S16  }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      48             :         {"s32",  "32-bit signed integer",         0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_S32  }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      49             :         {"flt",  "32-bit float",                  0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_FLT  }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      50             :         {"dbl",  "64-bit double",                 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_DBL  }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      51             :         {"u8p" , "8-bit unsigned integer planar", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_U8P  }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      52             :         {"s16p", "16-bit signed integer planar",  0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_S16P }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      53             :         {"s32p", "32-bit signed integer planar",  0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_S32P }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      54             :         {"fltp", "32-bit float planar",           0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_FLTP }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      55             :         {"dblp", "64-bit double planar",          0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_DBLP }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"},
      56             :     { "mix_coeff_type",         "Mixing Coefficient Type",  OFFSET(mix_coeff_type),         AV_OPT_TYPE_INT,    { .i64 = AV_MIX_COEFF_TYPE_FLT }, AV_MIX_COEFF_TYPE_Q8, AV_MIX_COEFF_TYPE_NB-1, PARAM, "mix_coeff_type" },
      57             :         { "q8",  "16-bit 8.8 Fixed-Point",   0, AV_OPT_TYPE_CONST, { .i64 = AV_MIX_COEFF_TYPE_Q8  }, INT_MIN, INT_MAX, PARAM, "mix_coeff_type" },
      58             :         { "q15", "32-bit 17.15 Fixed-Point", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MIX_COEFF_TYPE_Q15 }, INT_MIN, INT_MAX, PARAM, "mix_coeff_type" },
      59             :         { "flt", "Floating-Point",           0, AV_OPT_TYPE_CONST, { .i64 = AV_MIX_COEFF_TYPE_FLT }, INT_MIN, INT_MAX, PARAM, "mix_coeff_type" },
      60             :     { "center_mix_level",       "Center Mix Level",         OFFSET(center_mix_level),       AV_OPT_TYPE_DOUBLE, { .dbl = M_SQRT1_2      }, -32.0,                32.0,                   PARAM },
      61             :     { "surround_mix_level",     "Surround Mix Level",       OFFSET(surround_mix_level),     AV_OPT_TYPE_DOUBLE, { .dbl = M_SQRT1_2      }, -32.0,                32.0,                   PARAM },
      62             :     { "lfe_mix_level",          "LFE Mix Level",            OFFSET(lfe_mix_level),          AV_OPT_TYPE_DOUBLE, { .dbl = 0.0            }, -32.0,                32.0,                   PARAM },
      63             :     { "normalize_mix_level",    "Normalize Mix Level",      OFFSET(normalize_mix_level),    AV_OPT_TYPE_INT,    { .i64 = 1              }, 0,                    1,                      PARAM },
      64             :     { "force_resampling",       "Force Resampling",         OFFSET(force_resampling),       AV_OPT_TYPE_INT,    { .i64 = 0              }, 0,                    1,                      PARAM },
      65             :     { "filter_size",            "Resampling Filter Size",   OFFSET(filter_size),            AV_OPT_TYPE_INT,    { .i64 = 16             }, 0,                    32, /* ??? */           PARAM },
      66             :     { "phase_shift",            "Resampling Phase Shift",   OFFSET(phase_shift),            AV_OPT_TYPE_INT,    { .i64 = 10             }, 0,                    30, /* ??? */           PARAM },
      67             :     { "linear_interp",          "Use Linear Interpolation", OFFSET(linear_interp),          AV_OPT_TYPE_INT,    { .i64 = 0              }, 0,                    1,                      PARAM },
      68             :     { "cutoff",                 "Cutoff Frequency Ratio",   OFFSET(cutoff),                 AV_OPT_TYPE_DOUBLE, { .dbl = 0.8            }, 0.0,                  1.0,                    PARAM },
      69             :     /* duplicate option in order to work with avconv */
      70             :     { "resample_cutoff",        "Cutoff Frequency Ratio",   OFFSET(cutoff),                 AV_OPT_TYPE_DOUBLE, { .dbl = 0.8            }, 0.0,                  1.0,                    PARAM },
      71             :     { "matrix_encoding",        "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" },
      72             :         { "none",  "None",               0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_NONE  }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
      73             :         { "dolby", "Dolby",              0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DOLBY }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
      74             :         { "dplii", "Dolby Pro Logic II", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DPLII }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
      75             :     { "filter_type",            "Filter Type",              OFFSET(filter_type),            AV_OPT_TYPE_INT,    { .i64 = AV_RESAMPLE_FILTER_TYPE_KAISER }, AV_RESAMPLE_FILTER_TYPE_CUBIC, AV_RESAMPLE_FILTER_TYPE_KAISER,  PARAM, "filter_type" },
      76             :         { "cubic",            "Cubic",                          0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_FILTER_TYPE_CUBIC            }, INT_MIN, INT_MAX, PARAM, "filter_type" },
      77             :         { "blackman_nuttall", "Blackman Nuttall Windowed Sinc", 0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_FILTER_TYPE_BLACKMAN_NUTTALL }, INT_MIN, INT_MAX, PARAM, "filter_type" },
      78             :         { "kaiser",           "Kaiser Windowed Sinc",           0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_FILTER_TYPE_KAISER           }, INT_MIN, INT_MAX, PARAM, "filter_type" },
      79             :     { "kaiser_beta",            "Kaiser Window Beta",       OFFSET(kaiser_beta),            AV_OPT_TYPE_INT,    { .i64 = 9              }, 2,                    16,                     PARAM },
      80             :     { "dither_method",          "Dither Method",            OFFSET(dither_method),          AV_OPT_TYPE_INT,    { .i64 = AV_RESAMPLE_DITHER_NONE }, 0, AV_RESAMPLE_DITHER_NB-1, PARAM, "dither_method"},
      81             :         {"none",          "No Dithering",                         0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_DITHER_NONE          }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      82             :         {"rectangular",   "Rectangular Dither",                   0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_DITHER_RECTANGULAR   }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      83             :         {"triangular",    "Triangular Dither",                    0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_DITHER_TRIANGULAR    }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      84             :         {"triangular_hp", "Triangular Dither With High Pass",     0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_DITHER_TRIANGULAR_HP }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      85             :         {"triangular_ns", "Triangular Dither With Noise Shaping", 0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_DITHER_TRIANGULAR_NS }, INT_MIN, INT_MAX, PARAM, "dither_method"},
      86             :     { NULL },
      87             : };
      88             : 
      89             : static const AVClass av_resample_context_class = {
      90             :     .class_name = "AVAudioResampleContext",
      91             :     .item_name  = av_default_item_name,
      92             :     .option     = avresample_options,
      93             :     .version    = LIBAVUTIL_VERSION_INT,
      94             : };
      95             : 
      96           0 : AVAudioResampleContext *avresample_alloc_context(void)
      97             : {
      98             :     AVAudioResampleContext *avr;
      99             : 
     100           0 :     avr = av_mallocz(sizeof(*avr));
     101           0 :     if (!avr)
     102           0 :         return NULL;
     103             : 
     104           0 :     avr->av_class = &av_resample_context_class;
     105           0 :     av_opt_set_defaults(avr);
     106             : 
     107           0 :     return avr;
     108             : }
     109             : 
     110       55465 : const AVClass *avresample_get_class(void)
     111             : {
     112       55465 :     return &av_resample_context_class;
     113             : }

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