Add -audio-test-out option to the core.

This option can be used to quickly check audio output (without
having to boot a full AVD and launch a sound-playing application).

Usage:
   emulator <other-options> -qemu -audio-test-out
   qemu-android <other-options> -audio-test-out

This simply generates an ugly saw signal, but that's enough for us.

Change-Id: I060300b4000b9705d181c6262de8d4d13c749e69

1 files changed, 22 insertions, 0 deletions

diff --git a/android/audio-test.h b/android/audio-test.h
new file mode 100644
index 0000000..8113aae
--- /dev/null
+++ b/android/audio-test.h
@@ -0,0 +1,22 @@
+/* Copyright (C) 2010 The Android Open Source Project
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*/
+#ifndef ANDROID_AUDIO_TEST_H
+#define ANDROID_AUDIO_TEST_H
+
+/* Start the audio test output, this will register a virtual sound
+ * device that sends a saw signal to the audio sub-system. This is
+ * used to test that the audio backend works without having to boot
+ * a full system and launch a music application.
+ */
+extern int android_audio_test_start_out(void);
+
+#endif /* ANDROID_AUDIO_TEST_H */