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Simplify channel logic for coreaudio

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Haze Booth 2023-06-02 16:17:46 -04:00 • committed by Stephen Gutekanst
parent 81bcce0c48
commit 28c119888b
3 changed files with 51 additions and 114 deletions
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8
libs/sysaudio/examples/sine-wave.zig
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@ -4,23 +4,31 @@ const sysaudio = @import("sysaudio");
var player: sysaudio.Player = undefined;
pub fn main() !void {
var timer = try std.time.Timer.start();
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
defer _ = gpa.deinit();
const allocator = gpa.allocator();
var ctx = try sysaudio.Context.init(null, allocator, .{ .deviceChangeFn = deviceChange });
std.log.info("Took {} to initialize the context...", .{std.fmt.fmtDuration(timer.lap())});
defer ctx.deinit();
try ctx.refresh();
std.log.info("Took {} to refresh the context...", .{std.fmt.fmtDuration(timer.lap())});
const device = ctx.defaultDevice(.playback) orelse return error.NoDevice;
std.log.info("Took {} to get the default playback device...", .{std.fmt.fmtDuration(timer.lap())});
player = try ctx.createPlayer(device, writeCallback, .{});
std.log.info("Took {} to create a player...", .{std.fmt.fmtDuration(timer.lap())});
defer player.deinit();
try player.start();
std.log.info("Took {} to start the player...", .{std.fmt.fmtDuration(timer.lap())});
try player.setVolume(0.85);
std.log.info("Took {} to set the volume...", .{std.fmt.fmtDuration(timer.lap())});
var buf: [16]u8 = undefined;
std.log.info("player created & entering i/o loop...", .{});
while (true) {
std.debug.print("( paused = {}, volume = {d} )\n> ", .{ player.paused(), try player.volume() });
const line = (try std.io.getStdIn().reader().readUntilDelimiterOrEof(&buf, '\n')) orelse break;