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Diffstat (limited to 'libopus/tests/test_opus_projection.c')
| -rw-r--r-- | libopus/tests/test_opus_projection.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/libopus/tests/test_opus_projection.c b/libopus/tests/test_opus_projection.c new file mode 100644 index 0000000..5f0d672 --- /dev/null +++ b/libopus/tests/test_opus_projection.c @@ -0,0 +1,394 @@ +/* Copyright (c) 2017 Google Inc. + Written by Andrew Allen */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include "float_cast.h" +#include "opus.h" +#include "test_opus_common.h" +#include "opus_projection.h" +#include "mathops.h" +#include "../src/mapping_matrix.h" +#include "mathops.h" + +#define BUFFER_SIZE 960 +#define MAX_DATA_BYTES 32768 +#define MAX_FRAME_SAMPLES 5760 +#define ERROR_TOLERANCE 1 + +#define SIMPLE_MATRIX_SIZE 12 +#define SIMPLE_MATRIX_FRAME_SIZE 10 +#define SIMPLE_MATRIX_INPUT_SIZE 30 +#define SIMPLE_MATRIX_OUTPUT_SIZE 40 + +int assert_is_equal( + const opus_val16 *a, const opus_int16 *b, int size, opus_int16 tolerance) +{ + int i; + for (i = 0; i < size; i++) + { +#ifdef FIXED_POINT + opus_int16 val = a[i]; +#else + opus_int16 val = FLOAT2INT16(a[i]); +#endif + if (abs(val - b[i]) > tolerance) + return 1; + } + return 0; +} + +int assert_is_equal_short( + const opus_int16 *a, const opus_int16 *b, int size, opus_int16 tolerance) +{ + int i; + for (i = 0; i < size; i++) + if (abs(a[i] - b[i]) > tolerance) + return 1; + return 0; +} + +void test_simple_matrix(void) +{ + const MappingMatrix simple_matrix_params = {4, 3, 0}; + const opus_int16 simple_matrix_data[SIMPLE_MATRIX_SIZE] = {0, 32767, 0, 0, 32767, 0, 0, 0, 0, 0, 0, 32767}; + const opus_int16 input_int16[SIMPLE_MATRIX_INPUT_SIZE] = { + 32767, 0, -32768, 29491, -3277, -29491, 26214, -6554, -26214, 22938, -9830, + -22938, 19661, -13107, -19661, 16384, -16384, -16384, 13107, -19661, -13107, + 9830, -22938, -9830, 6554, -26214, -6554, 3277, -29491, -3277}; + const opus_int16 expected_output_int16[SIMPLE_MATRIX_OUTPUT_SIZE] = { + 0, 32767, 0, -32768, -3277, 29491, 0, -29491, -6554, 26214, 0, -26214, + -9830, 22938, 0, -22938, -13107, 19661, 0, -19661, -16384, 16384, 0, -16384, + -19661, 13107, 0, -13107, -22938, 9830, 0, -9830, -26214, 6554, 0, -6554, + -29491, 3277, 0, -3277}; + + int i, ret; + opus_int32 simple_matrix_size; + opus_val16 *input_val16; + opus_val16 *output_val16; + opus_int16 *output_int16; + MappingMatrix *simple_matrix; + + /* Allocate input/output buffers. */ + input_val16 = (opus_val16 *)opus_alloc(sizeof(opus_val16) * SIMPLE_MATRIX_INPUT_SIZE); + output_int16 = (opus_int16 *)opus_alloc(sizeof(opus_int16) * SIMPLE_MATRIX_OUTPUT_SIZE); + output_val16 = (opus_val16 *)opus_alloc(sizeof(opus_val16) * SIMPLE_MATRIX_OUTPUT_SIZE); + + /* Initialize matrix */ + simple_matrix_size = mapping_matrix_get_size(simple_matrix_params.rows, + simple_matrix_params.cols); + if (!simple_matrix_size) + test_failed(); + + simple_matrix = (MappingMatrix *)opus_alloc(simple_matrix_size); + mapping_matrix_init(simple_matrix, simple_matrix_params.rows, + simple_matrix_params.cols, simple_matrix_params.gain, simple_matrix_data, + sizeof(simple_matrix_data)); + + /* Copy inputs. */ + for (i = 0; i < SIMPLE_MATRIX_INPUT_SIZE; i++) + { +#ifdef FIXED_POINT + input_val16[i] = input_int16[i]; +#else + input_val16[i] = (1/32768.f)*input_int16[i]; +#endif + } + + /* _in_short */ + for (i = 0; i < SIMPLE_MATRIX_OUTPUT_SIZE; i++) + output_val16[i] = 0; + for (i = 0; i < simple_matrix->rows; i++) + { + mapping_matrix_multiply_channel_in_short(simple_matrix, + input_int16, simple_matrix->cols, &output_val16[i], i, + simple_matrix->rows, SIMPLE_MATRIX_FRAME_SIZE); + } + ret = assert_is_equal(output_val16, expected_output_int16, SIMPLE_MATRIX_OUTPUT_SIZE, ERROR_TOLERANCE); + if (ret) + test_failed(); + + /* _out_short */ + for (i = 0; i < SIMPLE_MATRIX_OUTPUT_SIZE; i++) + output_int16[i] = 0; + for (i = 0; i < simple_matrix->cols; i++) + { + mapping_matrix_multiply_channel_out_short(simple_matrix, + &input_val16[i], i, simple_matrix->cols, output_int16, + simple_matrix->rows, SIMPLE_MATRIX_FRAME_SIZE); + } + ret = assert_is_equal_short(output_int16, expected_output_int16, SIMPLE_MATRIX_OUTPUT_SIZE, ERROR_TOLERANCE); + if (ret) + test_failed(); + +#if !defined(DISABLE_FLOAT_API) && !defined(FIXED_POINT) + /* _in_float */ + for (i = 0; i < SIMPLE_MATRIX_OUTPUT_SIZE; i++) + output_val16[i] = 0; + for (i = 0; i < simple_matrix->rows; i++) + { + mapping_matrix_multiply_channel_in_float(simple_matrix, + input_val16, simple_matrix->cols, &output_val16[i], i, + simple_matrix->rows, SIMPLE_MATRIX_FRAME_SIZE); + } + ret = assert_is_equal(output_val16, expected_output_int16, SIMPLE_MATRIX_OUTPUT_SIZE, ERROR_TOLERANCE); + if (ret) + test_failed(); + + /* _out_float */ + for (i = 0; i < SIMPLE_MATRIX_OUTPUT_SIZE; i++) + output_val16[i] = 0; + for (i = 0; i < simple_matrix->cols; i++) + { + mapping_matrix_multiply_channel_out_float(simple_matrix, + &input_val16[i], i, simple_matrix->cols, output_val16, + simple_matrix->rows, SIMPLE_MATRIX_FRAME_SIZE); + } + ret = assert_is_equal(output_val16, expected_output_int16, SIMPLE_MATRIX_OUTPUT_SIZE, ERROR_TOLERANCE); + if (ret) + test_failed(); +#endif + + opus_free(input_val16); + opus_free(output_int16); + opus_free(output_val16); + opus_free(simple_matrix); +} + +void test_creation_arguments(const int channels, const int mapping_family) +{ + int streams; + int coupled_streams; + int enc_error; + int dec_error; + int ret; + OpusProjectionEncoder *st_enc = NULL; + OpusProjectionDecoder *st_dec = NULL; + + const opus_int32 Fs = 48000; + const int application = OPUS_APPLICATION_AUDIO; + + int order_plus_one = (int)floor(sqrt((float)channels)); + int nondiegetic_channels = channels - order_plus_one * order_plus_one; + + int is_channels_valid = 0; + int is_projection_valid = 0; + + st_enc = opus_projection_ambisonics_encoder_create(Fs, channels, + mapping_family, &streams, &coupled_streams, application, &enc_error); + if (st_enc != NULL) + { + opus_int32 matrix_size; + unsigned char *matrix; + + ret = opus_projection_encoder_ctl(st_enc, + OPUS_PROJECTION_GET_DEMIXING_MATRIX_SIZE_REQUEST, &matrix_size); + if (ret != OPUS_OK || !matrix_size) + test_failed(); + + matrix = (unsigned char *)opus_alloc(matrix_size); + ret = opus_projection_encoder_ctl(st_enc, + OPUS_PROJECTION_GET_DEMIXING_MATRIX_REQUEST, matrix, matrix_size); + + opus_projection_encoder_destroy(st_enc); + + st_dec = opus_projection_decoder_create(Fs, channels, streams, + coupled_streams, matrix, matrix_size, &dec_error); + if (st_dec != NULL) + { + opus_projection_decoder_destroy(st_dec); + } + opus_free(matrix); + } + + is_channels_valid = (order_plus_one >= 2 && order_plus_one <= 4) && + (nondiegetic_channels == 0 || nondiegetic_channels == 2); + is_projection_valid = (enc_error == OPUS_OK && dec_error == OPUS_OK); + if (is_channels_valid ^ is_projection_valid) + { + fprintf(stderr, "Channels: %d, Family: %d\n", channels, mapping_family); + fprintf(stderr, "Order+1: %d, Non-diegetic Channels: %d\n", + order_plus_one, nondiegetic_channels); + fprintf(stderr, "Streams: %d, Coupled Streams: %d\n", + streams, coupled_streams); + test_failed(); + } +} + +void generate_music(short *buf, opus_int32 len, opus_int32 channels) +{ + opus_int32 i,j,k; + opus_int32 *a,*b,*c,*d; + a = (opus_int32 *)malloc(sizeof(opus_int32) * channels); + b = (opus_int32 *)malloc(sizeof(opus_int32) * channels); + c = (opus_int32 *)malloc(sizeof(opus_int32) * channels); + d = (opus_int32 *)malloc(sizeof(opus_int32) * channels); + memset(a, 0, sizeof(opus_int32) * channels); + memset(b, 0, sizeof(opus_int32) * channels); + memset(c, 0, sizeof(opus_int32) * channels); + memset(d, 0, sizeof(opus_int32) * channels); + j=0; + + for(i=0;i<len;i++) + { + for(k=0;k<channels;k++) + { + opus_uint32 r; + opus_int32 v; + v=(((j*((j>>12)^((j>>10|j>>12)&26&j>>7)))&128)+128)<<15; + r=fast_rand();v+=r&65535;v-=r>>16; + b[k]=v-a[k]+((b[k]*61+32)>>6);a[k]=v; + c[k]=(30*(c[k]+b[k]+d[k])+32)>>6;d[k]=b[k]; + v=(c[k]+128)>>8; + buf[i*channels+k]=v>32767?32767:(v<-32768?-32768:v); + if(i%6==0)j++; + } + } + + free(a); + free(b); + free(c); + free(d); +} + +void test_encode_decode(opus_int32 bitrate, opus_int32 channels, + const int mapping_family) +{ + const opus_int32 Fs = 48000; + const int application = OPUS_APPLICATION_AUDIO; + + OpusProjectionEncoder *st_enc; + OpusProjectionDecoder *st_dec; + int streams; + int coupled; + int error; + short *buffer_in; + short *buffer_out; + unsigned char data[MAX_DATA_BYTES] = { 0 }; + int len; + int out_samples; + opus_int32 matrix_size = 0; + unsigned char *matrix = NULL; + + buffer_in = (short *)malloc(sizeof(short) * BUFFER_SIZE * channels); + buffer_out = (short *)malloc(sizeof(short) * BUFFER_SIZE * channels); + + st_enc = opus_projection_ambisonics_encoder_create(Fs, channels, + mapping_family, &streams, &coupled, application, &error); + if (error != OPUS_OK) { + fprintf(stderr, + "Couldn\'t create encoder with %d channels and mapping family %d.\n", + channels, mapping_family); + free(buffer_in); + free(buffer_out); + test_failed(); + } + + error = opus_projection_encoder_ctl(st_enc, + OPUS_SET_BITRATE(bitrate * 1000 * (streams + coupled))); + if (error != OPUS_OK) + { + goto bad_cleanup; + } + + error = opus_projection_encoder_ctl(st_enc, + OPUS_PROJECTION_GET_DEMIXING_MATRIX_SIZE_REQUEST, &matrix_size); + if (error != OPUS_OK || !matrix_size) + { + goto bad_cleanup; + } + + matrix = (unsigned char *)opus_alloc(matrix_size); + error = opus_projection_encoder_ctl(st_enc, + OPUS_PROJECTION_GET_DEMIXING_MATRIX_REQUEST, matrix, matrix_size); + + st_dec = opus_projection_decoder_create(Fs, channels, streams, coupled, + matrix, matrix_size, &error); + opus_free(matrix); + + if (error != OPUS_OK) { + fprintf(stderr, + "Couldn\'t create decoder with %d channels, %d streams " + "and %d coupled streams.\n", channels, streams, coupled); + goto bad_cleanup; + } + + generate_music(buffer_in, BUFFER_SIZE, channels); + + len = opus_projection_encode( + st_enc, buffer_in, BUFFER_SIZE, data, MAX_DATA_BYTES); + if(len<0 || len>MAX_DATA_BYTES) { + fprintf(stderr,"opus_encode() returned %d\n", len); + goto bad_cleanup; + } + + out_samples = opus_projection_decode( + st_dec, data, len, buffer_out, MAX_FRAME_SAMPLES, 0); + if(out_samples!=BUFFER_SIZE) { + fprintf(stderr,"opus_decode() returned %d\n", out_samples); + goto bad_cleanup; + } + + opus_projection_decoder_destroy(st_dec); + opus_projection_encoder_destroy(st_enc); + free(buffer_in); + free(buffer_out); + return; +bad_cleanup: + free(buffer_in); + free(buffer_out); + test_failed(); +} + +int main(int _argc, char **_argv) +{ + unsigned int i; + + (void)_argc; + (void)_argv; + + /* Test simple matrix multiplication routines. */ + test_simple_matrix(); + + /* Test full range of channels in creation arguments. */ + for (i = 0; i < 255; i++) + test_creation_arguments(i, 3); + + /* Test encode/decode pipeline. */ + test_encode_decode(64 * 18, 18, 3); + + fprintf(stderr, "All projection tests passed.\n"); + return 0; +} + |