32 lines
1.4 KiB
C
32 lines
1.4 KiB
C
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/* Verify the bundled song produces finite stereo audio in every bar offline. */
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#include "xtc/xtc_midi.h"
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#include <assert.h>
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#include <math.h>
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#include <stdio.h>
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int main(void)
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{
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xtc_project *project = NULL;
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xtc_midi_plan *midi = NULL;
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xtc_plan *graph = NULL;
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double energy[4] = {0};
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assert(xtc_project_create(&project) == XTC_OK);
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assert(xtc_project_load(project, "examples/projects/playback-test.xtc") == XTC_OK);
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assert(xtc_midi_plan_create(project, 48000, &midi) == XTC_OK);
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assert(xtc_graph_compile(xtc_project_graph(project), 48000, 256, &graph) == XTC_OK);
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for (uint64_t pos = 0; pos < 384000; pos += 256) {
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float ml[256], mr[256], left[256], right[256];
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assert(xtc_midi_plan_render_stereo(midi, pos, NULL, 0, ml, mr, 256) == XTC_OK);
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assert(xtc_plan_process_stereo(graph, NULL, NULL, NULL, ml, mr, left, right, 256) == XTC_OK);
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for (size_t i = 0; i < 256 && pos + i < 384000; ++i) {
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assert(isfinite(left[i]) && isfinite(right[i]));
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assert(fabsf(left[i]) <= 1 && fabsf(right[i]) <= 1);
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energy[(pos + i) / 96000] += fabsf(left[i]) + fabsf(right[i]);
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}
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}
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for (size_t bar = 0; bar < 4; ++bar) assert(energy[bar] > 1);
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xtc_plan_destroy(graph);
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xtc_midi_plan_destroy(midi);
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xtc_project_destroy(project);
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puts("Playback example renders all four bars without devices or media.");
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return 0;
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}
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