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Holger Vogt
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b22f9ad862
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@ -34,151 +34,151 @@ static float* (resampled[MAX_D]); //< internal soundfile buffer
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#endif
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void vsjack_initialize(void) {
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int d;
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for (d = 0; d < MAX_D; d++) {
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m_sndfile[d] = NULL;
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interleaved[d] = NULL;
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int d;
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for (d = 0; d < MAX_D; d++) {
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m_sndfile[d] = NULL;
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interleaved[d] = NULL;
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#ifdef HAVE_SRC
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resampled[d] = NULL;
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resampled[d] = NULL;
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#endif
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sources[d] = NULL;
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}
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sources[0] = strdup("/tmp/test.wav");
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sources[1] = strdup("/tmp/test1.wav");
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sources[d] = NULL;
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}
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sources[0] = strdup("/tmp/test.wav");
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sources[1] = strdup("/tmp/test1.wav");
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}
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void realloc_sf(int d, uint32_t buffersize) {
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if (interleaved[d]) free(interleaved[d]);
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interleaved[d] = (float*)calloc(m_channels[d] * buffersize, sizeof(float));
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if (interleaved[d]) free(interleaved[d]);
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interleaved[d] = (float*)calloc(m_channels[d] * buffersize, sizeof(float));
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}
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#ifdef HAVE_SRC
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void realloc_src(int d, uint32_t buffersize) {
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if (resampled[d]) free(resampled[d]);
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resampled[d] = (float*)calloc(m_channels[d] * buffersize, sizeof(float));
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if (resampled[d]) free(resampled[d]);
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resampled[d] = (float*)calloc(m_channels[d] * buffersize, sizeof(float));
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}
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#endif
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#if 0
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void closefile_sf(int d) {
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if (!m_sndfile[d]) return;
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sf_close(m_sndfile[d]);
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if (!m_sndfile[d]) return;
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sf_close(m_sndfile[d]);
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#ifdef HAVE_SRC
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src_delete(rabbit[d]);
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src_delete(rabbit[d]);
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#endif
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m_sndfile[d] = NULL;
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m_sndfile[d] = NULL;
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}
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#endif
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int openfile_sf(int d, char* filename) {
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SF_INFO sfinfo;
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if (!m_sndfile[d]) sf_close(m_sndfile[d]);
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printf("opening file '%s' for id:%i\n", filename, d);
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m_sndfile[d] = sf_open(filename, SFM_READ, &sfinfo);
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ilb_end[d] = ilb_start[d] = 0;
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SF_INFO sfinfo;
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if (!m_sndfile[d]) sf_close(m_sndfile[d]);
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printf("opening file '%s' for id:%i\n", filename, d);
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m_sndfile[d] = sf_open(filename, SFM_READ, &sfinfo);
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ilb_end[d] = ilb_start[d] = 0;
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if (SF_ERR_NO_ERROR != sf_error(m_sndfile[d])) {
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fprintf(stderr, "This is not a sndfile supported audio file format\n");
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return (-1);
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}
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if (sfinfo.frames == 0) {
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fprintf(stderr, "This is an empty audio file\n");
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return (-1);
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}
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m_channels[d] = sfinfo.channels;
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m_samplerate[d] = sfinfo.samplerate;
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m_frames[d] = (uint32_t)sfinfo.frames;
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realloc_sf(d, VS_BUFSIZ);
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if (SF_ERR_NO_ERROR != sf_error(m_sndfile[d])) {
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fprintf(stderr, "This is not a sndfile supported audio file format\n");
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return (-1);
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}
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if (sfinfo.frames == 0) {
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fprintf(stderr, "This is an empty audio file\n");
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return (-1);
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}
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m_channels[d] = sfinfo.channels;
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m_samplerate[d] = sfinfo.samplerate;
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m_frames[d] = (uint32_t)sfinfo.frames;
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realloc_sf(d, VS_BUFSIZ);
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#ifdef HAVE_SRC
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realloc_src(d, VS_BUFSIZ * SRC_RATIO);
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rabbit[d] = src_new(SRC_SINC_BEST_QUALITY, m_channels[d], &(rabbit_err[d]));
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src_set_ratio(rabbit[d], SRC_RATIO);
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src_reset(rabbit[d]);
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realloc_src(d, VS_BUFSIZ * SRC_RATIO);
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rabbit[d] = src_new(SRC_SINC_BEST_QUALITY, m_channels[d], &(rabbit_err[d]));
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src_set_ratio(rabbit[d], SRC_RATIO);
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src_reset(rabbit[d]);
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#endif
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return (0);
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return (0);
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}
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void load_buffer(int d, uint32_t sample) {
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sf_seek(m_sndfile[d], sample, SEEK_SET);
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ilb_start[d] = sample;
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uint32_t nframes;
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if ((nframes = (uint32_t)sf_readf_float(m_sndfile[d], (interleaved[d]), VS_BUFSIZ)) > 0) {
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ilb_end[d] = ilb_start[d] + nframes;
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}
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else {
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ilb_end[d] = ilb_start[d];
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printf("Decoder error.\n");
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}
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sf_seek(m_sndfile[d], sample, SEEK_SET);
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ilb_start[d] = sample;
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uint32_t nframes;
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if ((nframes = (uint32_t)sf_readf_float(m_sndfile[d], (interleaved[d]), VS_BUFSIZ)) > 0) {
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ilb_end[d] = ilb_start[d] + nframes;
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}
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else {
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ilb_end[d] = ilb_start[d];
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printf("Decoder error.\n");
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}
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#ifdef HAVE_SRC
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SRC_DATA src_data;
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src_data.data_in = interleaved[d];
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src_data.data_out = resampled[d];
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src_data.input_frames = VS_BUFSIZ;
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src_data.output_frames = VS_BUFSIZ * SRC_RATIO;
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src_data.end_of_input = ((ilb_end[d] - ilb_start[d]) < VS_BUFSIZ);
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src_data.src_ratio = SRC_RATIO;
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src_data.input_frames_used = 0;
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src_data.output_frames_gen = 0;
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SRC_DATA src_data;
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src_data.data_in = interleaved[d];
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src_data.data_out = resampled[d];
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src_data.input_frames = VS_BUFSIZ;
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src_data.output_frames = VS_BUFSIZ * SRC_RATIO;
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src_data.end_of_input = ((ilb_end[d] - ilb_start[d]) < VS_BUFSIZ);
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src_data.src_ratio = SRC_RATIO;
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src_data.input_frames_used = 0;
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src_data.output_frames_gen = 0;
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src_process(rabbit[d], &src_data);
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src_process(rabbit[d], &src_data);
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#endif
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}
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double get_value(int d, double time, int channel) {
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uint32_t sample = (uint32_t)floor(time * ((double)m_samplerate[d]));
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uint32_t sample = (uint32_t)floor(time * ((double)m_samplerate[d]));
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// TODO: print EOF warning (once). FIXME move to load_buffer
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if (sample > m_frames[d]) return (0.0);
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// TODO: print EOF warning (once). FIXME move to load_buffer
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if (sample > m_frames[d]) return (0.0);
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if (sample < ilb_start[d] || sample >= ilb_end[d])
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load_buffer(d, sample);
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if (sample < ilb_start[d] || sample >= ilb_end[d])
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load_buffer(d, sample);
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if (sample < ilb_start[d] || sample >= ilb_end[d]) {
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printf("no such value buffered for file:%i.\n", d);
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return (0.0); // nan ?
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}
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if (sample < ilb_start[d] || sample >= ilb_end[d]) {
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printf("no such value buffered for file:%i.\n", d);
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return (0.0); // nan ?
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}
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#ifdef HAVE_SRC
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int offset = (int)floor((sample - ilb_start[d]) * SRC_RATIO);
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if (offset > VS_BUFSIZ * SRC_RATIO || offset < 0) {
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printf("value not in buffer:%i.\n", d);
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return (0.0); // nan ?
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}
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float val = ((float*)(resampled[d]))[m_channels[d] * offset + channel];
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int offset = (int)floor((sample - ilb_start[d]) * SRC_RATIO);
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if (offset > VS_BUFSIZ * SRC_RATIO || offset < 0) {
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printf("value not in buffer:%i.\n", d);
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return (0.0); // nan ?
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}
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float val = ((float*)(resampled[d]))[m_channels[d] * offset + channel];
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# if 0 // DEBUG
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# define SQUARE(A) ((A)*(A))
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static double stride = 0;
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static double last = 0;
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static double deviation = 0;
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static int dev_cnt = 0;
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if (channel == 0) {
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stride += (SRC_RATIO * time * ((double)m_samplerate[d])) - last;
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last = (SRC_RATIO * time * ((double)m_samplerate[d]));
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deviation += SQUARE((SRC_RATIO * time * ((double)m_samplerate[d])) - floor(SRC_RATIO * time * ((double)m_samplerate[d])));
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dev_cnt++;
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if ((dev_cnt % (12000)) == 0)
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printf("read time dev= %f - stride= %f\n", sqrt(deviation / (double)dev_cnt), stride / (double)dev_cnt);
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}
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static double stride = 0;
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static double last = 0;
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static double deviation = 0;
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static int dev_cnt = 0;
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if (channel == 0) {
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stride += (SRC_RATIO * time * ((double)m_samplerate[d])) - last;
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last = (SRC_RATIO * time * ((double)m_samplerate[d]));
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deviation += SQUARE((SRC_RATIO * time * ((double)m_samplerate[d])) - floor(SRC_RATIO * time * ((double)m_samplerate[d])));
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dev_cnt++;
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if ((dev_cnt % (12000)) == 0)
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printf("read time dev= %f - stride= %f\n", sqrt(deviation / (double)dev_cnt), stride / (double)dev_cnt);
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}
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# endif
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# if 0 // zero order hold.
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return((double)val);
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return((double)val);
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# else
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// linear interpolation
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float val1 = ((float*)(resampled[d]))[(m_channels[d] * (offset + 1)) + channel];
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double diff = (SRC_RATIO * time * ((double)m_samplerate[d])) -
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floor(SRC_RATIO * time * ((double)m_samplerate[d]));
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double rv = ((double)val) * (1.0 - diff) + ((double)val1) * diff;
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return(rv);
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// linear interpolation
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float val1 = ((float*)(resampled[d]))[(m_channels[d] * (offset + 1)) + channel];
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double diff = (SRC_RATIO * time * ((double)m_samplerate[d])) -
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floor(SRC_RATIO * time * ((double)m_samplerate[d]));
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double rv = ((double)val) * (1.0 - diff) + ((double)val1) * diff;
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return(rv);
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# endif
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#else // no upsampling.
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int offset = sample - ilb_start[d];
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if (offset > VS_BUFSIZ || offset < 0) {
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printf("value not in buffer:%i.\n", d);
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return (0.0); // nan ?
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}
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return((double)(((float*)(interleaved[d]))[m_channels[d] * offset + channel]));
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int offset = sample - ilb_start[d];
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if (offset > VS_BUFSIZ || offset < 0) {
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printf("value not in buffer:%i.\n", d);
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return (0.0); // nan ?
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}
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return((double)(((float*)(interleaved[d]))[m_channels[d] * offset + channel]));
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#endif
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}
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@ -188,34 +188,34 @@ double get_value(int d, double time, int channel) {
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*/
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double vsjack_get_value(int d, double time, double time_offset, int channel, double oversampling) {
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assert(d >= 0 && d < MAX_D);
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if (m_sndfile[d] == NULL) return (0.0); // FIXME
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if (oversampling > 0) src_ratio = oversampling;
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assert(d >= 0 && d < MAX_D);
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if (m_sndfile[d] == NULL) return (0.0); // FIXME
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if (oversampling > 0) src_ratio = oversampling;
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double value = get_value(d, time + time_offset, channel);
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return (value);
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double value = get_value(d, time + time_offset, channel);
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return (value);
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}
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void vsjack_set_file(int d, char* fn) {
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assert(d >= 0 && d < MAX_D);
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if (sources[d] != NULL) free(sources[d]);
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sources[d] = strdup(fn);
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assert(d >= 0 && d < MAX_D);
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if (sources[d] != NULL) free(sources[d]);
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sources[d] = strdup(fn);
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}
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int vsjack_open(int d) {
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static int initialized = 0;
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if (!initialized) {
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initialized = 1;
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vsjack_initialize();
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}
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if (d == -1) return -1;// initialize only
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assert(d >= 0 && d < MAX_D);
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assert(sources[d] != NULL);
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if (openfile_sf(d, sources[d])) {
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fprintf(stderr, "could not open '%s'\n", sources[d]);
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controlled_exit(1);
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}
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return (d);
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static int initialized = 0;
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if (!initialized) {
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initialized = 1;
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vsjack_initialize();
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}
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if (d == -1) return -1;// initialize only
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assert(d >= 0 && d < MAX_D);
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assert(sources[d] != NULL);
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if (openfile_sf(d, sources[d])) {
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fprintf(stderr, "could not open '%s'\n", sources[d]);
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controlled_exit(1);
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}
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return (d);
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}
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/* vi:set ts=8 sts=4 sw=4: */
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