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1 | sclass StreamSoundToAPlay implements AutoCloseable {
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2 | Process process; |
3 | InputStream in; |
4 | OutputStream out; |
5 | int sampleRate = 44100, channels = 2, bits = 16; |
6 | int bufSizeMS = 0; // 0 = default |
7 | double duration = yearsToSeconds(1); // max seconds |
8 | GSWavFile wavStream; |
9 | long frameCounter = 0; |
10 | |
11 | void start ctex {
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12 | assertOnPATH("aplay");
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13 | Process process = Runtime.getRuntime().exec("aplay"
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14 | + (bufSizeMS == 0 ? "" : " -B " + bufSizeMS)); |
15 | |
16 | // should probably print those instead |
17 | drainStreamInNewThread(process.getInputStream()); |
18 | drainStreamInNewThread(process.getErrorStream()); |
19 | |
20 | out = process.getOutputStream(); |
21 | long numFrames = (long)(duration * sampleRate); |
22 | |
23 | wavStream = GSWavFile.newWavFile(out, null, channels, numFrames, bits, sampleRate); |
24 | } |
25 | |
26 | void writeSamples(short[] samples) ctex {
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27 | if (samples != null) for (short x : samples) {
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28 | wavStream.writeSample(x); |
29 | ++frameCounter; |
30 | } |
31 | } |
32 | |
33 | public void close {
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34 | dispose wavStream; // also closes the stream & thereby ends the process |
35 | } |
36 | } |
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| Snippet ID: | #1027005 |
| Snippet name: | StreamSoundToAPlay [OK, but needs handling for ended process, e.g. when audio device changes in raspbian] |
| Eternal ID of this version: | #1027005/9 |
| Text MD5: | c7ee10f3b96d24e0f6035fb08645e5b5 |
| Transpilation MD5: | 0c16ec256b32808e00a23eceb0d2c29a |
| Author: | stefan |
| Category: | javax / audio |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2020-02-07 00:32:29 |
| Source code size: | 1106 bytes / 36 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 199 / 544 |
| Version history: | 8 change(s) |
| Referenced in: | [show references] |