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));
35 JackLibSampleRateResampler::JackLibSampleRateResampler(
unsigned int quality)
43 quality = SRC_ZERO_ORDER_HOLD;
46 quality = SRC_SINC_FASTEST;
49 quality = SRC_SINC_MEDIUM_QUALITY;
52 quality = SRC_SINC_BEST_QUALITY;
61 fResampler = src_new(quality, 1, &error);
63 jack_error(
"JackLibSampleRateResampler::JackLibSampleRateResampler err = %s", src_strerror(error));
67 JackLibSampleRateResampler::~JackLibSampleRateResampler()
69 src_delete(fResampler);
72 void JackLibSampleRateResampler::Reset(
unsigned int new_size)
74 JackResampler::Reset(new_size);
75 src_reset(fResampler);
78 unsigned int JackLibSampleRateResampler::ReadResample(jack_default_audio_sample_t* buffer,
unsigned int frames)
82 unsigned int frames_to_write = frames;
83 unsigned int written_frames = 0;
87 unsigned int available_frames = (ring_buffer_data[0].len + ring_buffer_data[1].len) /
sizeof(jack_default_audio_sample_t);
88 jack_log(
"Output available = %ld", available_frames);
90 for (
int j = 0; j < 2; j++) {
92 if (ring_buffer_data[j].len > 0) {
94 src_data.data_in = (jack_default_audio_sample_t*)ring_buffer_data[j].buf;
95 src_data.data_out = &buffer[written_frames];
96 src_data.input_frames = ring_buffer_data[j].len /
sizeof(jack_default_audio_sample_t);
97 src_data.output_frames = frames_to_write;
98 src_data.end_of_input = 0;
99 src_data.src_ratio = fRatio;
101 res = src_process(fResampler, &src_data);
103 jack_error(
"JackLibSampleRateResampler::ReadResample ratio = %f err = %s", fRatio, src_strerror(res));
107 frames_to_write -= src_data.output_frames_gen;
108 written_frames += src_data.output_frames_gen;
110 if ((src_data.input_frames_used == 0 || src_data.output_frames_gen == 0) && j == 0) {
111 jack_log(
"Output : j = %d input_frames_used = %ld output_frames_gen = %ld frames1 = %lu frames2 = %lu"
112 , j, src_data.input_frames_used, src_data.output_frames_gen, ring_buffer_data[0].len, ring_buffer_data[1].len);
115 jack_log(
"Output : j = %d input_frames_used = %ld output_frames_gen = %ld", j, src_data.input_frames_used, src_data.output_frames_gen);
120 if (written_frames < frames) {
121 jack_error(
"Output available = %ld", available_frames);
122 jack_error(
"JackLibSampleRateResampler::ReadResample error written_frames = %ld", written_frames);
125 return written_frames;
128 unsigned int JackLibSampleRateResampler::WriteResample(jack_default_audio_sample_t* buffer,
unsigned int frames)
132 unsigned int frames_to_read = frames;
133 unsigned int read_frames = 0;
137 unsigned int available_frames = (ring_buffer_data[0].len + ring_buffer_data[1].len) /
sizeof(jack_default_audio_sample_t);
138 jack_log(
"Input available = %ld", available_frames);
140 for (
int j = 0; j < 2; j++) {
142 if (ring_buffer_data[j].len > 0) {
144 src_data.data_in = &buffer[read_frames];
145 src_data.data_out = (jack_default_audio_sample_t*)ring_buffer_data[j].buf;
146 src_data.input_frames = frames_to_read;
147 src_data.output_frames = (ring_buffer_data[j].len /
sizeof(jack_default_audio_sample_t));
148 src_data.end_of_input = 0;
149 src_data.src_ratio = fRatio;
151 res = src_process(fResampler, &src_data);
153 jack_error(
"JackLibSampleRateResampler::WriteResample ratio = %f err = %s", fRatio, src_strerror(res));
157 frames_to_read -= src_data.input_frames_used;
158 read_frames += src_data.input_frames_used;
160 if ((src_data.input_frames_used == 0 || src_data.output_frames_gen == 0) && j == 0) {
161 jack_log(
"Input : j = %d input_frames_used = %ld output_frames_gen = %ld frames1 = %lu frames2 = %lu"
162 , j, src_data.input_frames_used, src_data.output_frames_gen, ring_buffer_data[0].len, ring_buffer_data[1].len);
165 jack_log(
"Input : j = %d input_frames_used = %ld output_frames_gen = %ld", j, src_data.input_frames_used, src_data.output_frames_gen);
170 if (read_frames < frames) {
171 jack_error(
"Input available = %ld", available_frames);
172 jack_error(
"JackLibSampleRateResampler::WriteResample error read_frames = %ld", read_frames);
void jack_ringbuffer_write_advance(jack_ringbuffer_t *rb, size_t cnt)
SERVER_EXPORT void jack_error(const char *fmt,...)
void jack_ringbuffer_get_read_vector(const jack_ringbuffer_t *rb, jack_ringbuffer_data_t *vec)
void jack_ringbuffer_get_write_vector(const jack_ringbuffer_t *rb, jack_ringbuffer_data_t *vec)
void jack_ringbuffer_read_advance(jack_ringbuffer_t *rb, size_t cnt)
SERVER_EXPORT void jack_log(const char *fmt,...)