forked from KolibriOS/kolibrios
156 lines
14 KiB
C
156 lines
14 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at)
|
||
|
|
*
|
||
|
|
* This file is part of libswresample
|
||
|
|
*
|
||
|
|
* libswresample 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.
|
||
|
|
*
|
||
|
|
* libswresample 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 libswresample; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "libavutil/opt.h"
|
||
|
|
#include "swresample_internal.h"
|
||
|
|
|
||
|
|
#include <float.h>
|
||
|
|
|
||
|
|
#define C30DB M_SQRT2
|
||
|
|
#define C15DB 1.189207115
|
||
|
|
#define C__0DB 1.0
|
||
|
|
#define C_15DB 0.840896415
|
||
|
|
#define C_30DB M_SQRT1_2
|
||
|
|
#define C_45DB 0.594603558
|
||
|
|
#define C_60DB 0.5
|
||
|
|
|
||
|
|
#define OFFSET(x) offsetof(SwrContext,x)
|
||
|
|
#define PARAM AV_OPT_FLAG_AUDIO_PARAM
|
||
|
|
|
||
|
|
static const AVOption options[]={
|
||
|
|
{"ich" , "set input channel count" , OFFSET(user_in_ch_count ), AV_OPT_TYPE_INT, {.i64=0 }, 0 , SWR_CH_MAX, PARAM},
|
||
|
|
{"in_channel_count" , "set input channel count" , OFFSET(user_in_ch_count ), AV_OPT_TYPE_INT, {.i64=0 }, 0 , SWR_CH_MAX, PARAM},
|
||
|
|
{"och" , "set output channel count" , OFFSET(user_out_ch_count ), AV_OPT_TYPE_INT, {.i64=0 }, 0 , SWR_CH_MAX, PARAM},
|
||
|
|
{"out_channel_count" , "set output channel count" , OFFSET(user_out_ch_count ), AV_OPT_TYPE_INT, {.i64=0 }, 0 , SWR_CH_MAX, PARAM},
|
||
|
|
{"uch" , "set used channel count" , OFFSET(user_used_ch_count), AV_OPT_TYPE_INT, {.i64=0 }, 0 , SWR_CH_MAX, PARAM},
|
||
|
|
{"used_channel_count" , "set used channel count" , OFFSET(user_used_ch_count), AV_OPT_TYPE_INT, {.i64=0 }, 0 , SWR_CH_MAX, PARAM},
|
||
|
|
{"isr" , "set input sample rate" , OFFSET( in_sample_rate), AV_OPT_TYPE_INT , {.i64=0 }, 0 , INT_MAX , PARAM},
|
||
|
|
{"in_sample_rate" , "set input sample rate" , OFFSET( in_sample_rate), AV_OPT_TYPE_INT , {.i64=0 }, 0 , INT_MAX , PARAM},
|
||
|
|
{"osr" , "set output sample rate" , OFFSET(out_sample_rate), AV_OPT_TYPE_INT , {.i64=0 }, 0 , INT_MAX , PARAM},
|
||
|
|
{"out_sample_rate" , "set output sample rate" , OFFSET(out_sample_rate), AV_OPT_TYPE_INT , {.i64=0 }, 0 , INT_MAX , PARAM},
|
||
|
|
{"isf" , "set input sample format" , OFFSET( in_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1 , INT_MAX, PARAM},
|
||
|
|
{"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},
|
||
|
|
{"osf" , "set output sample format" , OFFSET(out_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1 , INT_MAX, PARAM},
|
||
|
|
{"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},
|
||
|
|
{"tsf" , "set internal sample format" , OFFSET(user_int_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1 , INT_MAX, PARAM},
|
||
|
|
{"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},
|
||
|
|
{"icl" , "set input channel layout" , OFFSET(user_in_ch_layout ), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0 }, 0 , INT64_MAX , PARAM, "channel_layout"},
|
||
|
|
{"in_channel_layout" , "set input channel layout" , OFFSET(user_in_ch_layout ), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0 }, 0 , INT64_MAX , PARAM, "channel_layout"},
|
||
|
|
{"ocl" , "set output channel layout" , OFFSET(user_out_ch_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0 }, 0 , INT64_MAX , PARAM, "channel_layout"},
|
||
|
|
{"out_channel_layout" , "set output channel layout" , OFFSET(user_out_ch_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0 }, 0 , INT64_MAX , PARAM, "channel_layout"},
|
||
|
|
{"clev" , "set center mix level" , OFFSET(clev ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB }, -32 , 32 , PARAM},
|
||
|
|
{"center_mix_level" , "set center mix level" , OFFSET(clev ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB }, -32 , 32 , PARAM},
|
||
|
|
{"slev" , "set surround mix level" , OFFSET(slev ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB }, -32 , 32 , PARAM},
|
||
|
|
{"surround_mix_level" , "set surround mix Level" , OFFSET(slev ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB }, -32 , 32 , PARAM},
|
||
|
|
{"lfe_mix_level" , "set LFE mix level" , OFFSET(lfe_mix_level ), AV_OPT_TYPE_FLOAT, {.dbl=0 }, -32 , 32 , PARAM},
|
||
|
|
{"rmvol" , "set rematrix volume" , OFFSET(rematrix_volume), AV_OPT_TYPE_FLOAT, {.dbl=1.0 }, -1000 , 1000 , PARAM},
|
||
|
|
{"rematrix_volume" , "set rematrix volume" , OFFSET(rematrix_volume), AV_OPT_TYPE_FLOAT, {.dbl=1.0 }, -1000 , 1000 , PARAM},
|
||
|
|
{"rematrix_maxval" , "set rematrix maxval" , OFFSET(rematrix_maxval), AV_OPT_TYPE_FLOAT, {.dbl=0.0 }, 0 , 1000 , PARAM},
|
||
|
|
|
||
|
|
{"flags" , "set flags" , OFFSET(flags ), AV_OPT_TYPE_FLAGS, {.i64=0 }, 0 , UINT_MAX , PARAM, "flags"},
|
||
|
|
{"swr_flags" , "set flags" , OFFSET(flags ), AV_OPT_TYPE_FLAGS, {.i64=0 }, 0 , UINT_MAX , PARAM, "flags"},
|
||
|
|
{"res" , "force resampling" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_FLAG_RESAMPLE }, INT_MIN, INT_MAX , PARAM, "flags"},
|
||
|
|
|
||
|
|
{"dither_scale" , "set dither scale" , OFFSET(dither.scale ), AV_OPT_TYPE_FLOAT, {.dbl=1 }, 0 , INT_MAX , PARAM},
|
||
|
|
|
||
|
|
{"dither_method" , "set dither method" , OFFSET(dither.method ), AV_OPT_TYPE_INT , {.i64=0 }, 0 , SWR_DITHER_NB-1, PARAM, "dither_method"},
|
||
|
|
{"rectangular" , "select rectangular dither" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_RECTANGULAR}, INT_MIN, INT_MAX , PARAM, "dither_method"},
|
||
|
|
{"triangular" , "select triangular dither" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_TRIANGULAR }, INT_MIN, INT_MAX , PARAM, "dither_method"},
|
||
|
|
{"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"},
|
||
|
|
{"lipshitz" , "select lipshitz noise shaping dither" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_LIPSHITZ}, INT_MIN, INT_MAX, PARAM, "dither_method"},
|
||
|
|
{"shibata" , "select shibata noise shaping dither" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_SHIBATA }, INT_MIN, INT_MAX, PARAM, "dither_method"},
|
||
|
|
{"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"},
|
||
|
|
{"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"},
|
||
|
|
{"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"},
|
||
|
|
{"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"},
|
||
|
|
{"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"},
|
||
|
|
|
||
|
|
{"filter_size" , "set swr resampling filter size", OFFSET(filter_size) , AV_OPT_TYPE_INT , {.i64=32 }, 0 , INT_MAX , PARAM },
|
||
|
|
{"phase_shift" , "set swr resampling phase shift", OFFSET(phase_shift) , AV_OPT_TYPE_INT , {.i64=10 }, 0 , 24 , PARAM },
|
||
|
|
{"linear_interp" , "enable linear interpolation" , OFFSET(linear_interp) , AV_OPT_TYPE_INT , {.i64=0 }, 0 , 1 , PARAM },
|
||
|
|
{"cutoff" , "set cutoff frequency ratio" , OFFSET(cutoff) , AV_OPT_TYPE_DOUBLE,{.dbl=0. }, 0 , 1 , PARAM },
|
||
|
|
|
||
|
|
/* duplicate option in order to work with avconv */
|
||
|
|
{"resample_cutoff" , "set cutoff frequency ratio" , OFFSET(cutoff) , AV_OPT_TYPE_DOUBLE,{.dbl=0. }, 0 , 1 , PARAM },
|
||
|
|
|
||
|
|
{"resampler" , "set resampling Engine" , OFFSET(engine) , AV_OPT_TYPE_INT , {.i64=0 }, 0 , SWR_ENGINE_NB-1, PARAM, "resampler"},
|
||
|
|
{"swr" , "select SW Resampler" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_ENGINE_SWR }, INT_MIN, INT_MAX , PARAM, "resampler"},
|
||
|
|
{"soxr" , "select SoX Resampler" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_ENGINE_SOXR }, INT_MIN, INT_MAX , PARAM, "resampler"},
|
||
|
|
{"precision" , "set soxr resampling precision (in bits)"
|
||
|
|
, OFFSET(precision) , AV_OPT_TYPE_DOUBLE,{.dbl=20.0 }, 15.0 , 33.0 , PARAM },
|
||
|
|
{"cheby" , "enable soxr Chebyshev passband & higher-precision irrational ratio approximation"
|
||
|
|
, OFFSET(cheby) , AV_OPT_TYPE_INT , {.i64=0 }, 0 , 1 , PARAM },
|
||
|
|
{"min_comp" , "set minimum difference between timestamps and audio data (in seconds) below which no timestamp compensation of either kind is applied"
|
||
|
|
, OFFSET(min_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=FLT_MAX }, 0 , FLT_MAX , PARAM },
|
||
|
|
{"min_hard_comp" , "set minimum difference between timestamps and audio data (in seconds) to trigger padding/trimming the data."
|
||
|
|
, OFFSET(min_hard_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=0.1 }, 0 , INT_MAX , PARAM },
|
||
|
|
{"comp_duration" , "set duration (in seconds) over which data is stretched/squeezed to make it match the timestamps."
|
||
|
|
, OFFSET(soft_compensation_duration),AV_OPT_TYPE_FLOAT ,{.dbl=1 }, 0 , INT_MAX , PARAM },
|
||
|
|
{"max_soft_comp" , "set maximum factor by which data is stretched/squeezed to make it match the timestamps."
|
||
|
|
, OFFSET(max_soft_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=0 }, INT_MIN, INT_MAX , PARAM },
|
||
|
|
{"async" , "simplified 1 parameter audio timestamp matching, 0(disabled), 1(filling and trimming), >1(maximum stretch/squeeze in samples per second)"
|
||
|
|
, OFFSET(async) , AV_OPT_TYPE_FLOAT ,{.dbl=0 }, INT_MIN, INT_MAX , PARAM },
|
||
|
|
{"first_pts" , "Assume the first pts should be this value (in samples)."
|
||
|
|
, OFFSET(firstpts_in_samples), AV_OPT_TYPE_INT64 ,{.i64=AV_NOPTS_VALUE }, INT64_MIN,INT64_MAX, PARAM },
|
||
|
|
|
||
|
|
{ "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" },
|
||
|
|
{ "none", "select none", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_NONE }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
|
||
|
|
{ "dolby", "select Dolby", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DOLBY }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
|
||
|
|
{ "dplii", "select Dolby Pro Logic II", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DPLII }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
|
||
|
|
|
||
|
|
{ "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" },
|
||
|
|
{ "cubic" , "select cubic" , 0 , AV_OPT_TYPE_CONST, { .i64 = SWR_FILTER_TYPE_CUBIC }, INT_MIN, INT_MAX, PARAM, "filter_type" },
|
||
|
|
{ "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" },
|
||
|
|
{ "kaiser" , "select Kaiser Windowed Sinc" , 0 , AV_OPT_TYPE_CONST, { .i64 = SWR_FILTER_TYPE_KAISER }, INT_MIN, INT_MAX, PARAM, "filter_type" },
|
||
|
|
|
||
|
|
{ "kaiser_beta" , "set swr Kaiser Window Beta" , OFFSET(kaiser_beta) , AV_OPT_TYPE_INT , {.i64=9 }, 2 , 16 , PARAM },
|
||
|
|
|
||
|
|
{ "output_sample_bits" , "set swr number of output sample bits", OFFSET(dither.output_sample_bits), AV_OPT_TYPE_INT , {.i64=0 }, 0 , 64 , PARAM },
|
||
|
|
{0}
|
||
|
|
};
|
||
|
|
|
||
|
|
static const char* context_to_name(void* ptr) {
|
||
|
|
return "SWR";
|
||
|
|
}
|
||
|
|
|
||
|
|
static const AVClass av_class = {
|
||
|
|
.class_name = "SWResampler",
|
||
|
|
.item_name = context_to_name,
|
||
|
|
.option = options,
|
||
|
|
.version = LIBAVUTIL_VERSION_INT,
|
||
|
|
.log_level_offset_offset = OFFSET(log_level_offset),
|
||
|
|
.parent_log_context_offset = OFFSET(log_ctx),
|
||
|
|
.category = AV_CLASS_CATEGORY_SWRESAMPLER,
|
||
|
|
};
|
||
|
|
|
||
|
|
const AVClass *swr_get_class(void)
|
||
|
|
{
|
||
|
|
return &av_class;
|
||
|
|
}
|
||
|
|
|
||
|
|
av_cold struct SwrContext *swr_alloc(void){
|
||
|
|
SwrContext *s= av_mallocz(sizeof(SwrContext));
|
||
|
|
if(s){
|
||
|
|
s->av_class= &av_class;
|
||
|
|
av_opt_set_defaults(s);
|
||
|
|
}
|
||
|
|
return s;
|
||
|
|
}
|