-
- to_write = src_data.output_frames_gen;
- leftover_frames = src_data.input_frames - src_data.input_frames_used;
-
- if (leftover_frames > 0) {
- if (leftover_frames > max_leftover_frames) {
- error << _("warning, leftover frames overflowed, glitches might occur in output") << endmsg;
- leftover_frames = max_leftover_frames;
- }
- memmove (leftoverF, (char *) (src_data.data_in + (src_data.input_frames_used * channels)),
- leftover_frames * channels * sizeof(float));
- }
-
- float_buffer = dataF2;
-
- } else {
-
- /* no SRC, keep it simple */
-
- to_write = nframes;
- leftover_frames = 0;
- float_buffer = dataF;
- }
-
- if (output_data) {
- memset (output_data, 0, sample_bytes * to_write * channels);
- }
-
- switch (data_width) {
- case 8:
- case 16:
- case 24:
- for (chn = 0; chn < channels; ++chn) {
- gdither_runf (dither, chn, to_write, float_buffer, output_data);
- }
- break;
-
- case 32:
- for (chn = 0; chn < channels; ++chn) {
-
- int *ob = (int *) output_data;
- const double int_max = (float) INT_MAX;
- const double int_min = (float) INT_MIN;
-
- for (x = 0; x < to_write; ++x) {
- i = chn + (x * channels);
-
- if (float_buffer[i] > 1.0f) {
- ob[i] = INT_MAX;
- } else if (float_buffer[i] < -1.0f) {
- ob[i] = INT_MIN;
- } else {
- if (float_buffer[i] >= 0.0f) {
- ob[i] = lrintf (int_max * float_buffer[i]);
- } else {
- ob[i] = - lrintf (int_min * float_buffer[i]);
- }
- }
- }
- }
- break;
-
- default:
- for (x = 0; x < to_write * channels; ++x) {
- if (float_buffer[x] > 1.0f) {
- float_buffer[x] = 1.0f;
- } else if (float_buffer[x] < -1.0f) {
- float_buffer[x] = -1.0f;
- }
- }
- break;
- }
-
- /* and export to disk */
-
- switch (data_width) {
- case 8:
- /* XXXX no way to deliver 8 bit audio to libsndfile */
- written = to_write;
- break;
-
- case 16:
- written = sf_writef_short (out, (short*) output_data, to_write);
- break;
-
- case 24:
- case 32:
- written = sf_writef_int (out, (int*) output_data, to_write);
- break;
-
- default:
- written = sf_writef_float (out, float_buffer, to_write);
- break;
- }
-
- if ((jack_nframes_t) written != to_write) {
- sf_error_str (out, errbuf, sizeof (errbuf) - 1);
- error << string_compose(_("Export: could not write data to output file (%1)"), errbuf) << endmsg;
- return -1;