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sysaudio: examples: add support for 8ch output

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2024-05-26 13:00:29 -07:00
parent aa0ec4ba5e
commit b6a7296251
1 changed files with 3 additions and 1 deletions
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4
src/sysaudio/examples/sine.zig
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@ -58,12 +58,14 @@ fn writeCallback(_: ?*anyopaque, output: []u8) void {
const frames = output.len / frame_size; const frames = output.len / frame_size;
var i: usize = 0; var i: usize = 0;
var src: [16]f32 = undefined;
while (i < output.len) : (i += frame_size) { while (i < output.len) : (i += frame_size) {
const frame_index: f32 = @floatFromInt(i / frame_size); const frame_index: f32 = @floatFromInt(i / frame_size);
const sample = @sin((seconds_offset + frame_index * seconds_per_frame) * radians_per_second); const sample = @sin((seconds_offset + frame_index * seconds_per_frame) * radians_per_second);
for (0..player.channels().len) |ch| src[ch] = sample;
sysaudio.convertTo( sysaudio.convertTo(
f32, f32,
&.{ sample, sample }, src[0..player.channels().len],
player.format(), player.format(),
output[i..][0..frame_size], output[i..][0..frame_size],
); );