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| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2012 Justin Ruggles |
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| 3 | * |
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| 4 | * This file is part of FFmpeg. |
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| 5 | * |
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| 6 | * FFmpeg is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU Lesser General Public |
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| 8 | * License as published by the Free Software Foundation; either |
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| 9 | * version 2.1 of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * FFmpeg is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | * Lesser General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU Lesser General Public |
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| 17 | * License along with FFmpeg; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 19 | */ |
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| 20 | |||
| 21 | #include "libavutil/mathematics.h" |
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| 22 | #include "libavutil/mem.h" |
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| 23 | #include "libavutil/opt.h" |
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| 24 | #include "avresample.h" |
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| 25 | #include "internal.h" |
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| 26 | #include "audio_mix.h" |
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| 27 | |||
| 28 | /** |
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| 29 | * @file |
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| 30 | * Options definition for AVAudioResampleContext. |
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| 31 | */ |
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| 32 | |||
| 33 | #define OFFSET(x) offsetof(AVAudioResampleContext, x) |
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| 34 | #define PARAM AV_OPT_FLAG_AUDIO_PARAM |
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| 35 | |||
| 36 | static const AVOption avresample_options[] = { |
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| 37 | { "in_channel_layout", "Input Channel Layout", OFFSET(in_channel_layout), AV_OPT_TYPE_INT64, { .i64 = 0 }, INT64_MIN, INT64_MAX, PARAM }, |
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| 38 | { "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 }, |
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| 39 | { "in_sample_rate", "Input Sample Rate", OFFSET(in_sample_rate), AV_OPT_TYPE_INT, { .i64 = 48000 }, 1, INT_MAX, PARAM }, |
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| 40 | { "out_channel_layout", "Output Channel Layout", OFFSET(out_channel_layout), AV_OPT_TYPE_INT64, { .i64 = 0 }, INT64_MIN, INT64_MAX, PARAM }, |
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| 41 | { "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 }, |
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| 42 | { "out_sample_rate", "Output Sample Rate", OFFSET(out_sample_rate), AV_OPT_TYPE_INT, { .i64 = 48000 }, 1, INT_MAX, PARAM }, |
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| 43 | { "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" }, |
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| 44 | {"u8" , "8-bit unsigned integer", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_U8 }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 45 | {"s16", "16-bit signed integer", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_S16 }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 46 | {"s32", "32-bit signed integer", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_S32 }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 47 | {"flt", "32-bit float", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_FLT }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 48 | {"dbl", "64-bit double", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_DBL }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 49 | {"u8p" , "8-bit unsigned integer planar", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_U8P }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 50 | {"s16p", "16-bit signed integer planar", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_S16P }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 51 | {"s32p", "32-bit signed integer planar", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_S32P }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 52 | {"fltp", "32-bit float planar", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_FLTP }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 53 | {"dblp", "64-bit double planar", 0, AV_OPT_TYPE_CONST, {.i64 = AV_SAMPLE_FMT_DBLP }, INT_MIN, INT_MAX, PARAM, "internal_sample_fmt"}, |
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| 54 | { "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" }, |
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| 55 | { "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" }, |
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| 56 | { "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" }, |
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| 57 | { "flt", "Floating-Point", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MIX_COEFF_TYPE_FLT }, INT_MIN, INT_MAX, PARAM, "mix_coeff_type" }, |
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| 58 | { "center_mix_level", "Center Mix Level", OFFSET(center_mix_level), AV_OPT_TYPE_DOUBLE, { .dbl = M_SQRT1_2 }, -32.0, 32.0, PARAM }, |
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| 59 | { "surround_mix_level", "Surround Mix Level", OFFSET(surround_mix_level), AV_OPT_TYPE_DOUBLE, { .dbl = M_SQRT1_2 }, -32.0, 32.0, PARAM }, |
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| 60 | { "lfe_mix_level", "LFE Mix Level", OFFSET(lfe_mix_level), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, -32.0, 32.0, PARAM }, |
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| 61 | { "normalize_mix_level", "Normalize Mix Level", OFFSET(normalize_mix_level), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, PARAM }, |
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| 62 | { "force_resampling", "Force Resampling", OFFSET(force_resampling), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, PARAM }, |
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| 63 | { "filter_size", "Resampling Filter Size", OFFSET(filter_size), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, 32, /* ??? */ PARAM }, |
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| 64 | { "phase_shift", "Resampling Phase Shift", OFFSET(phase_shift), AV_OPT_TYPE_INT, { .i64 = 10 }, 0, 30, /* ??? */ PARAM }, |
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| 65 | { "linear_interp", "Use Linear Interpolation", OFFSET(linear_interp), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, PARAM }, |
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| 66 | { "cutoff", "Cutoff Frequency Ratio", OFFSET(cutoff), AV_OPT_TYPE_DOUBLE, { .dbl = 0.8 }, 0.0, 1.0, PARAM }, |
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| 67 | /* duplicate option in order to work with avconv */ |
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| 68 | { "resample_cutoff", "Cutoff Frequency Ratio", OFFSET(cutoff), AV_OPT_TYPE_DOUBLE, { .dbl = 0.8 }, 0.0, 1.0, PARAM }, |
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| 69 | { "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" }, |
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| 70 | { "none", "None", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_NONE }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" }, |
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| 71 | { "dolby", "Dolby", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DOLBY }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" }, |
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| 72 | { "dplii", "Dolby Pro Logic II", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DPLII }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" }, |
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| 73 | { "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" }, |
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| 74 | { "cubic", "Cubic", 0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_FILTER_TYPE_CUBIC }, INT_MIN, INT_MAX, PARAM, "filter_type" }, |
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| 75 | { "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" }, |
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| 76 | { "kaiser", "Kaiser Windowed Sinc", 0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_FILTER_TYPE_KAISER }, INT_MIN, INT_MAX, PARAM, "filter_type" }, |
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| 77 | { "kaiser_beta", "Kaiser Window Beta", OFFSET(kaiser_beta), AV_OPT_TYPE_INT, { .i64 = 9 }, 2, 16, PARAM }, |
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| 78 | { "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"}, |
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| 79 | {"none", "No Dithering", 0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_DITHER_NONE }, INT_MIN, INT_MAX, PARAM, "dither_method"}, |
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| 80 | {"rectangular", "Rectangular Dither", 0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_DITHER_RECTANGULAR }, INT_MIN, INT_MAX, PARAM, "dither_method"}, |
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| 81 | {"triangular", "Triangular Dither", 0, AV_OPT_TYPE_CONST, { .i64 = AV_RESAMPLE_DITHER_TRIANGULAR }, INT_MIN, INT_MAX, PARAM, "dither_method"}, |
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| 82 | {"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"}, |
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| 83 | {"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"}, |
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| 84 | { NULL }, |
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| 85 | }; |
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| 86 | |||
| 87 | static const AVClass av_resample_context_class = { |
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| 88 | .class_name = "AVAudioResampleContext", |
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| 89 | .item_name = av_default_item_name, |
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| 90 | .option = avresample_options, |
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| 91 | .version = LIBAVUTIL_VERSION_INT, |
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| 92 | }; |
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| 93 | |||
| 94 | AVAudioResampleContext *avresample_alloc_context(void) |
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| 95 | { |
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| 96 | AVAudioResampleContext *avr; |
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| 97 | |||
| 98 | avr = av_mallocz(sizeof(*avr)); |
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| 99 | if (!avr) |
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| 100 | return NULL; |
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| 101 | |||
| 102 | avr->av_class = &av_resample_context_class; |
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| 103 | av_opt_set_defaults(avr); |
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| 104 | |||
| 105 | return avr; |
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| 106 | } |
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| 107 | |||
| 108 | const AVClass *avresample_get_class(void) |
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| 109 | { |
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| 110 | return &av_resample_context_class; |
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| 111 | } |