1 files changed, 52 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/generate-test-files.py b/dom/media/webaudio/test/generate-test-files.py
new file mode 100755
index 0000000000..af4bc3bb49
--- /dev/null
+++ b/dom/media/webaudio/test/generate-test-files.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+
+import os
+
+rates = [44100, 48000]
+channels = [1, 2]
+duration = "0.5"
+frequency = "1000"
+volume = "-3dB"
+name = "half-a-second"
+formats = {
+    "aac-in-adts": [{"codec": "aac", "extension": "aac"}],
+    "mp3": [{"codec": "libmp3lame", "extension": "mp3"}],
+    "mp4": [
+        {
+            "codec": "libopus",
+            "extension": "mp4",
+        },
+        {"codec": "aac", "extension": "mp4"},
+    ],
+    "ogg": [
+        {"codec": "libvorbis", "extension": "ogg"},
+        {"codec": "libopus", "extension": "opus"},
+    ],
+    "flac": [
+        {"codec": "flac", "extension": "flac"},
+    ],
+    "webm": [
+        {"codec": "libopus", "extension": "webm"},
+        {"codec": "libvorbis", "extension": "webm"},
+    ],
+}
+
+for rate in rates:
+    for channel_count in channels:
+        wav_filename = "{}-{}ch-{}.wav".format(name, channel_count, rate)
+        wav_command = "sox -V -r {} -n -b 16 -c {} {}  synth {} sin {} vol {}".format(
+            rate, channel_count, wav_filename, duration, frequency, volume
+        )
+        print(wav_command)
+        os.system(wav_command)
+        for container, codecs in formats.items():
+            for codec in codecs:
+                encoded_filename = "{}-{}ch-{}-{}.{}".format(
+                    name, channel_count, rate, codec["codec"], codec["extension"]
+                )
+                print(encoded_filename)
+                encoded_command = "ffmpeg -y -i {} -acodec {} {}".format(
+                    wav_filename, codec["codec"], encoded_filename
+                )
+                print(encoded_command)
+                os.system(encoded_command)