20 #include "JackLibSampleRateResampler.h"
25 JackLibSampleRateResampler::JackLibSampleRateResampler()
29 fResampler = src_new(SRC_LINEAR, 1, &error);
31 jack_error(
"JackLibSampleRateResampler::JackLibSampleRateResampler err = %s", src_strerror(error));
34 JackLibSampleRateResampler::JackLibSampleRateResampler(
unsigned int quality)
42 quality = SRC_ZERO_ORDER_HOLD;
45 quality = SRC_SINC_FASTEST;
48 quality = SRC_SINC_MEDIUM_QUALITY;
51 quality = SRC_SINC_BEST_QUALITY;
60 fResampler = src_new(quality, 1, &error);
62 jack_error(
"JackLibSampleRateResampler::JackLibSampleRateResampler err = %s", src_strerror(error));
66 JackLibSampleRateResampler::~JackLibSampleRateResampler()
68 src_delete(fResampler);
71 void JackLibSampleRateResampler::Reset(
unsigned int new_size)
73 JackResampler::Reset(new_size);
74 src_reset(fResampler);
77 unsigned int JackLibSampleRateResampler::ReadResample(jack_default_audio_sample_t* buffer,
unsigned int frames)
81 unsigned int frames_to_write = frames;
82 unsigned int written_frames = 0;
86 unsigned int available_frames = (ring_buffer_data[0].len + ring_buffer_data[1].len) /
sizeof(jack_default_audio_sample_t);
87 jack_log(
"Output available = %ld", available_frames);
89 for (
int j = 0; j < 2; j++) {
91 if (ring_buffer_data[j].len > 0) {
93 src_data.data_in = (jack_default_audio_sample_t*)ring_buffer_data[j].buf;
94 src_data.data_out = &buffer[written_frames];
95 src_data.input_frames = ring_buffer_data[j].len /
sizeof(jack_default_audio_sample_t);
96 src_data.output_frames = frames_to_write;
97 src_data.end_of_input = 0;
98 src_data.src_ratio = fRatio;
100 res = src_process(fResampler, &src_data);
102 jack_error(
"JackLibSampleRateResampler::ReadResample ratio = %f err = %s", fRatio, src_strerror(res));
106 frames_to_write -= src_data.output_frames_gen;
107 written_frames += src_data.output_frames_gen;
109 if ((src_data.input_frames_used == 0 || src_data.output_frames_gen == 0) && j == 0) {
110 jack_log(
"Output : j = %d input_frames_used = %ld output_frames_gen = %ld frames1 = %lu frames2 = %lu"
111 , j, src_data.input_frames_used, src_data.output_frames_gen, ring_buffer_data[0].len, ring_buffer_data[1].len);
114 jack_log(
"Output : j = %d input_frames_used = %ld output_frames_gen = %ld", j, src_data.input_frames_used, src_data.output_frames_gen);
119 if (written_frames < frames) {
120 jack_error(
"Output available = %ld", available_frames);
121 jack_error(
"JackLibSampleRateResampler::ReadResample error written_frames = %ld", written_frames);
124 return written_frames;
127 unsigned int JackLibSampleRateResampler::WriteResample(jack_default_audio_sample_t* buffer,
unsigned int frames)
131 unsigned int frames_to_read = frames;
132 unsigned int read_frames = 0;
136 unsigned int available_frames = (ring_buffer_data[0].len + ring_buffer_data[1].len) /
sizeof(jack_default_audio_sample_t);
137 jack_log(
"Input available = %ld", available_frames);
139 for (
int j = 0; j < 2; j++) {
141 if (ring_buffer_data[j].len > 0) {
143 src_data.data_in = &buffer[read_frames];
144 src_data.data_out = (jack_default_audio_sample_t*)ring_buffer_data[j].buf;
145 src_data.input_frames = frames_to_read;
146 src_data.output_frames = (ring_buffer_data[j].len /
sizeof(jack_default_audio_sample_t));
147 src_data.end_of_input = 0;
148 src_data.src_ratio = fRatio;
150 res = src_process(fResampler, &src_data);
152 jack_error(
"JackLibSampleRateResampler::WriteResample ratio = %f err = %s", fRatio, src_strerror(res));
156 frames_to_read -= src_data.input_frames_used;
157 read_frames += src_data.input_frames_used;
159 if ((src_data.input_frames_used == 0 || src_data.output_frames_gen == 0) && j == 0) {
160 jack_log(
"Input : j = %d input_frames_used = %ld output_frames_gen = %ld frames1 = %lu frames2 = %lu"
161 , j, src_data.input_frames_used, src_data.output_frames_gen, ring_buffer_data[0].len, ring_buffer_data[1].len);
164 jack_log(
"Input : j = %d input_frames_used = %ld output_frames_gen = %ld", j, src_data.input_frames_used, src_data.output_frames_gen);
169 if (read_frames < frames) {
170 jack_error(
"Input available = %ld", available_frames);
171 jack_error(
"JackLibSampleRateResampler::WriteResample error read_frames = %ld", read_frames);