srctree

Andrew Kelley parent c44961c2 e48a71f1
example of printing metadata

README.md added: 19, removed: 6, total 13

@@ -8,7 +8,7 @@ interface.

## Status

The "playlist" example plays a queue of audio files, gaplessly, over the

default output device.

default output device. It also shows printing metadata tags.

The "analyze" example spawns a thread for each input file and computes:

- true peak (EBU R.128)

@@ -26,7 +26,6 @@ zig build

## Roadmap

* example that prints metadata of input file

* example that transcodes a list of input files

* update playlist example to support scripted inputs including pausing,

seeking, volume adjustment

example/playlist.zig added: 19, removed: 6, total 13

@@ -31,6 +31,14 @@ pub fn main() !void {

std.log.debug("opening '{s}'", .{arg});

const file = try player.File.open(std.fs.cwd(), arg, try arena.dupeZ(u8, arg));

errdefer file.close();

{

var it: ?*const player.File.MetadataEntry = null;

while (file.iterateMetadata(it)) |tag| : (it = tag) {

std.log.info("metadata: {s}={s}", .{ tag.key, tag.value });

}

try play_queue.files.append(gpa, file);

}

src/root.zig added: 19, removed: 6, total 13

@@ -92,7 +92,7 @@ pub const File = struct {

pub fn close(f: *File) void {

f.decode.free();

f.fs_file.close();

f.fc.free();

f.fc.close_input();

f.* = undefined;

}

@@ -464,6 +464,12 @@ pub const File = struct {

try abuffer_ctx.init_str(null);

return abuffer_ctx;

}

pub const MetadataEntry = av.Dictionary.Entry;

pub fn iterateMetadata(file: *const File, prev: ?*const MetadataEntry) ?*const MetadataEntry {

return av.Dictionary.iterate(file.fc.metadata, prev);

}

};

pub const Analysis = struct {