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Diffstat (limited to 'include/media/AudioCommon.h')
| -rw-r--r-- | include/media/AudioCommon.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/include/media/AudioCommon.h b/include/media/AudioCommon.h new file mode 100644 index 0000000..245d760 --- /dev/null +++ b/include/media/AudioCommon.h @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef ANDROID_AUDIOCOMMON_H_ +#define ANDROID_AUDIOCOMMON_H_ + +#if __cplusplus +extern "C" { +#endif + +///////////////////////////////////////////////// +// Common definitions for PCM audio +///////////////////////////////////////////////// + + +// PCM Sample format +enum audio_format_e { + PCM_FORMAT_S15 = 1, // PCM signed 16 bits, must be 1 for backward compatibility + PCM_FORMAT_U8 = 2, // PCM unsigned 8 bits, must be 2 for backward compatibility + PCM_FORMAT_S7_24 // signed 7.24 fixed point representation +}; + +// Channel mask definitions +enum audio_channels_e { + CHANNEL_FRONT_LEFT = 0x4, // front left channel + CHANNEL_FRONT_RIGHT = 0x8, // front right channel + CHANNEL_FRONT_CENTER = 0x10, // front center channel + CHANNEL_LOW_FREQUENCY = 0x20, // low frequency channel + CHANNEL_BACK_LEFT = 0x40, // back left channel + CHANNEL_BACK_RIGHT = 0x80, // back right channel + CHANNEL_FRONT_LEFT_OF_CENTER = 0x100, // front left of center channel + CHANNEL_FRONT_RIGHT_OF_CENTER = 0x200, // front right of center channel + CHANNEL_BACK_CENTER = 0x400, // back center channel + CHANNEL_MONO = CHANNEL_FRONT_LEFT, + CHANNEL_STEREO = (CHANNEL_FRONT_LEFT | CHANNEL_FRONT_RIGHT), + CHANNEL_QUAD = (CHANNEL_FRONT_LEFT | CHANNEL_FRONT_RIGHT | + CHANNEL_BACK_LEFT | CHANNEL_BACK_RIGHT), + CHANNEL_SURROUND = (CHANNEL_FRONT_LEFT | CHANNEL_FRONT_RIGHT | + CHANNEL_FRONT_CENTER | CHANNEL_BACK_CENTER), + CHANNEL_5POINT1 = (CHANNEL_FRONT_LEFT | CHANNEL_FRONT_RIGHT | + CHANNEL_FRONT_CENTER | CHANNEL_LOW_FREQUENCY | CHANNEL_BACK_LEFT | CHANNEL_BACK_RIGHT), + CHANNEL_7POINT1 = (CHANNEL_FRONT_LEFT | CHANNEL_FRONT_RIGHT | + CHANNEL_FRONT_CENTER | CHANNEL_LOW_FREQUENCY | CHANNEL_BACK_LEFT | CHANNEL_BACK_RIGHT | + CHANNEL_FRONT_LEFT_OF_CENTER | CHANNEL_FRONT_RIGHT_OF_CENTER), +}; + +// Render device definitions +enum audio_device_e { + DEVICE_EARPIECE = 0x1, // earpiece + DEVICE_SPEAKER = 0x2, // speaker + DEVICE_WIRED_HEADSET = 0x4, // wired headset, with microphone + DEVICE_WIRED_HEADPHONE = 0x8, // wired headphone, without microphone + DEVICE_BLUETOOTH_SCO = 0x10, // generic bluetooth SCO + DEVICE_BLUETOOTH_SCO_HEADSET = 0x20, // bluetooth SCO headset + DEVICE_BLUETOOTH_SCO_CARKIT = 0x40, // bluetooth SCO car kit + DEVICE_BLUETOOTH_A2DP = 0x80, // generic bluetooth A2DP + DEVICE_BLUETOOTH_A2DP_HEADPHONES = 0x100, // bluetooth A2DP headphones + DEVICE_BLUETOOTH_A2DP_SPEAKER = 0x200, // bluetooth A2DP speakers + DEVICE_AUX_DIGITAL = 0x400 // digital output +}; + +#if __cplusplus +} // extern "C" +#endif + + +#endif /*ANDROID_AUDIOCOMMON_H_*/ |