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CC-Tweaked/doc/events/speaker_audio_empty.md
Jonathan Coates 895bc7721a
License CC:T according to the REUSE specification (#1351) 
This adds SPDX license headers to all source code files, following the
REUSE[1] specification. This does not include any asset files (such as
generated JSON files, or textures). While REUSE does support doing so
with ".license" files, for now we define these licences using the
.reuse/dep5 file.

[1]: https://reuse.software/
2023-03-15 21:52:13 +00:00

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module: [kind=event] speaker_audio_empty see: speaker.playAudio To play audio using the speaker

Return Values

  1. @{string}: The event name.
  2. @{string}: The name of the speaker which is available to play more audio.

Example

This uses @{io.lines} to read audio data in blocks of 16KiB from "example_song.dfpwm", and then attempts to play it using @{speaker.playAudio}. If the speaker's buffer is full, it waits for an event and tries again.

local dfpwm = require("cc.audio.dfpwm")
local speaker = peripheral.find("speaker")

local decoder = dfpwm.make_decoder()
for chunk in io.lines("data/example.dfpwm", 16 * 1024) do
    local buffer = decoder(chunk)

    while not speaker.playAudio(buffer) do
        os.pullEvent("speaker_audio_empty")
    end
end