74 lines
1.7 KiB
Zig
74 lines
1.7 KiB
Zig
const std = @import("std");
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const c = @cImport({
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@cInclude("sndfile.h");
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});
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pub const ImageError = error{OpenFail};
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/// Low level integration function with libsndfile.
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fn sopen(
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allocator: *std.mem.Allocator,
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path: []const u8,
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mode: i32,
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fmt: *c.SF_INFO,
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) !*c.SNDFILE {
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var cstr_path = try std.cstr.addNullByte(allocator, path);
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defer allocator.free(cstr_path);
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var file = c.sf_open(cstr_path.ptr, mode, fmt);
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const st: i32 = c.sf_error(file);
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if (st != 0) {
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std.debug.warn(
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"Failed to open {} ({})\n",
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path,
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c.sf_error_number(st),
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);
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return ImageError.OpenFail;
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}
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return file.?;
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}
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pub const Image = struct {
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allocator: *std.mem.Allocator,
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sndfile: *c.SNDFILE,
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path: []const u8,
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/// Open a BMP file.
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pub fn open(allocator: *std.mem.Allocator, path: []const u8) !*Image {
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var in_fmt = c.SF_INFO{
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.frames = c_int(0),
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.samplerate = c_int(44100),
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.channels = c_int(1),
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.format = c.SF_FORMAT_ULAW | c.SF_FORMAT_RAW | c.SF_ENDIAN_BIG,
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.sections = c_int(0),
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.seekable = c_int(0),
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};
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var sndfile = try sopen(allocator, path, c.SFM_READ, &in_fmt);
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var image = try allocator.create(Image);
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image.* = Image{
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.allocator = allocator,
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.sndfile = sndfile,
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.path = path,
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};
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return image;
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}
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pub fn close(self: *Image) void {
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var st: i32 = c.sf_close(self.sndfile);
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if (st != 0) {
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std.debug.warn(
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"Failed to close {} ({})\n",
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self.path,
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c.sf_error_number(st),
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);
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}
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}
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};
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