20 #include "JackLibSampleRateResampler.h"
21 #include "JackError.h"
26 JackLibSampleRateResampler::JackLibSampleRateResampler()
30 fResampler = src_new(SRC_LINEAR, 1, &error);
32 jack_error(
"JackLibSampleRateResampler::JackLibSampleRateResampler err = %s", src_strerror(error));
36 JackLibSampleRateResampler::JackLibSampleRateResampler(
unsigned int quality)
44 quality = SRC_ZERO_ORDER_HOLD;
47 quality = SRC_SINC_FASTEST;
50 quality = SRC_SINC_MEDIUM_QUALITY;
53 quality = SRC_SINC_BEST_QUALITY;
62 fResampler = src_new(quality, 1, &error);
64 jack_error(
"JackLibSampleRateResampler::JackLibSampleRateResampler err = %s", src_strerror(error));
68 JackLibSampleRateResampler::~JackLibSampleRateResampler()
70 src_delete(fResampler);
73 void JackLibSampleRateResampler::Reset(
unsigned int new_size)
75 JackResampler::Reset(new_size);
76 src_reset(fResampler);
79 unsigned int JackLibSampleRateResampler::ReadResample(jack_default_audio_sample_t* buffer,
unsigned int frames)
83 unsigned int frames_to_write = frames;
84 unsigned int written_frames = 0;
88 unsigned int available_frames = (ring_buffer_data[0].len + ring_buffer_data[1].len) /
sizeof(jack_default_audio_sample_t);
89 jack_log(
"Output available = %ld", available_frames);
91 for (
int j = 0; j < 2; j++) {
93 if (ring_buffer_data[j].len > 0) {
95 src_data.data_in = (jack_default_audio_sample_t*)ring_buffer_data[j].buf;
96 src_data.data_out = &buffer[written_frames];
97 src_data.input_frames = ring_buffer_data[j].len /
sizeof(jack_default_audio_sample_t);
98 src_data.output_frames = frames_to_write;
99 src_data.end_of_input = 0;
100 src_data.src_ratio = fRatio;
102 res = src_process(fResampler, &src_data);
104 jack_error(
"JackLibSampleRateResampler::ReadResample ratio = %f err = %s", fRatio, src_strerror(res));
108 frames_to_write -= src_data.output_frames_gen;
109 written_frames += src_data.output_frames_gen;
111 if ((src_data.input_frames_used == 0 || src_data.output_frames_gen == 0) && j == 0) {
112 jack_log(
"Output : j = %d input_frames_used = %ld output_frames_gen = %ld frames1 = %lu frames2 = %lu"
113 , j, src_data.input_frames_used, src_data.output_frames_gen, ring_buffer_data[0].len, ring_buffer_data[1].len);
116 jack_log(
"Output : j = %d input_frames_used = %ld output_frames_gen = %ld", j, src_data.input_frames_used, src_data.output_frames_gen);
121 if (written_frames < frames) {
122 jack_error(
"Output available = %ld", available_frames);
123 jack_error(
"JackLibSampleRateResampler::ReadResample error written_frames = %ld", written_frames);
126 return written_frames;
129 unsigned int JackLibSampleRateResampler::WriteResample(jack_default_audio_sample_t* buffer,
unsigned int frames)
133 unsigned int frames_to_read = frames;
134 unsigned int read_frames = 0;
138 unsigned int available_frames = (ring_buffer_data[0].len + ring_buffer_data[1].len) /
sizeof(jack_default_audio_sample_t);
139 jack_log(
"Input available = %ld", available_frames);
141 for (
int j = 0; j < 2; j++) {
143 if (ring_buffer_data[j].len > 0) {
145 src_data.data_in = &buffer[read_frames];
146 src_data.data_out = (jack_default_audio_sample_t*)ring_buffer_data[j].buf;
147 src_data.input_frames = frames_to_read;
148 src_data.output_frames = (ring_buffer_data[j].len /
sizeof(jack_default_audio_sample_t));
149 src_data.end_of_input = 0;
150 src_data.src_ratio = fRatio;
152 res = src_process(fResampler, &src_data);
154 jack_error(
"JackLibSampleRateResampler::WriteResample ratio = %f err = %s", fRatio, src_strerror(res));
158 frames_to_read -= src_data.input_frames_used;
159 read_frames += src_data.input_frames_used;
161 if ((src_data.input_frames_used == 0 || src_data.output_frames_gen == 0) && j == 0) {
162 jack_log(
"Input : j = %d input_frames_used = %ld output_frames_gen = %ld frames1 = %lu frames2 = %lu"
163 , j, src_data.input_frames_used, src_data.output_frames_gen, ring_buffer_data[0].len, ring_buffer_data[1].len);
166 jack_log(
"Input : j = %d input_frames_used = %ld output_frames_gen = %ld", j, src_data.input_frames_used, src_data.output_frames_gen);
171 if (read_frames < frames) {
172 jack_error(
"Input available = %ld", available_frames);
173 jack_error(
"JackLibSampleRateResampler::WriteResample error read_frames = %ld", read_frames);