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| author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:38 -0800 |
|---|---|---|
| committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:38 -0800 |
| commit | 7df30109963092559d3760c0661a020f9daf1030 (patch) | |
| tree | 5780537d7996618fb7e1754bbd27361f3ccb9286 /arm-fm-22k/lib_src/eas_audioconst.h | |
| parent | 1b52a76815aa068a3477bfdfaf58718d41d7f9b4 (diff) | |
| download | external_sonivox-7df30109963092559d3760c0661a020f9daf1030.zip external_sonivox-7df30109963092559d3760c0661a020f9daf1030.tar.gz external_sonivox-7df30109963092559d3760c0661a020f9daf1030.tar.bz2 | |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'arm-fm-22k/lib_src/eas_audioconst.h')
| -rw-r--r-- | arm-fm-22k/lib_src/eas_audioconst.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/arm-fm-22k/lib_src/eas_audioconst.h b/arm-fm-22k/lib_src/eas_audioconst.h new file mode 100644 index 0000000..1cfa404 --- /dev/null +++ b/arm-fm-22k/lib_src/eas_audioconst.h @@ -0,0 +1,97 @@ +/*----------------------------------------------------------------------------
+ *
+ * File:
+ * eas_audioconst.h
+ *
+ * Contents and purpose:
+ * Defines audio constants related to the sample rate, bit size, etc.
+ *
+ *
+ * Copyright Sonic Network Inc. 2005
+ + * 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. + *
+ *----------------------------------------------------------------------------
+ * Revision Control:
+ * $Revision: 82 $
+ * $Date: 2006-07-10 11:45:19 -0700 (Mon, 10 Jul 2006) $
+ *----------------------------------------------------------------------------
+*/
+
+#ifndef _EAS_AUDIOCONST_H
+#define _EAS_AUDIOCONST_H
+
+/*----------------------------------------------------------------------------
+ * These macros define the various characteristics of the defined sample rates
+ *----------------------------------------------------------------------------
+ * BUFFER_SIZE_IN_MONO_SAMPLES size of buffer in samples
+ * _OUTPUT_SAMPLE_RATE compiled output sample rate
+ * AUDIO_FRAME_LENGTH length of an audio frame in 256ths of a millisecond
+ * SYNTH_UPDATE_PERIOD_IN_BITS length of an audio frame (2^x samples)
+ *----------------------------------------------------------------------------
+*/
+
+#if defined (_SAMPLE_RATE_8000)
+#define BUFFER_SIZE_IN_MONO_SAMPLES 32
+#define _OUTPUT_SAMPLE_RATE 8000
+#define AUDIO_FRAME_LENGTH 1024
+#define SYNTH_UPDATE_PERIOD_IN_BITS 5
+
+#elif defined (_SAMPLE_RATE_16000)
+#define BUFFER_SIZE_IN_MONO_SAMPLES 64
+#define _OUTPUT_SAMPLE_RATE 16000
+#define AUDIO_FRAME_LENGTH 1024
+#define SYNTH_UPDATE_PERIOD_IN_BITS 6
+
+#elif defined (_SAMPLE_RATE_20000)
+#define BUFFER_SIZE_IN_MONO_SAMPLES 128
+#define _OUTPUT_SAMPLE_RATE 20000
+#define AUDIO_FRAME_LENGTH 1638
+#define SYNTH_UPDATE_PERIOD_IN_BITS 7
+
+#elif defined (_SAMPLE_RATE_22050)
+#define BUFFER_SIZE_IN_MONO_SAMPLES 128
+#define _OUTPUT_SAMPLE_RATE 22050
+#define AUDIO_FRAME_LENGTH 1486
+#define SYNTH_UPDATE_PERIOD_IN_BITS 7
+
+#elif defined (_SAMPLE_RATE_24000)
+#define BUFFER_SIZE_IN_MONO_SAMPLES 128
+#define _OUTPUT_SAMPLE_RATE 24000
+#define AUDIO_FRAME_LENGTH 1365
+#define SYNTH_UPDATE_PERIOD_IN_BITS 7
+
+#elif defined (_SAMPLE_RATE_32000)
+#define BUFFER_SIZE_IN_MONO_SAMPLES 128
+#define _OUTPUT_SAMPLE_RATE 32000
+#define AUDIO_FRAME_LENGTH 1024
+#define SYNTH_UPDATE_PERIOD_IN_BITS 7
+
+#elif defined (_SAMPLE_RATE_44100)
+#define BUFFER_SIZE_IN_MONO_SAMPLES 256
+#define _OUTPUT_SAMPLE_RATE 44100
+#define AUDIO_FRAME_LENGTH 1486
+#define SYNTH_UPDATE_PERIOD_IN_BITS 8
+
+#elif defined (_SAMPLE_RATE_48000)
+#define BUFFER_SIZE_IN_MONO_SAMPLES 256
+#define _OUTPUT_SAMPLE_RATE 48000
+#define AUDIO_FRAME_LENGTH 1365
+#define SYNTH_UPDATE_PERIOD_IN_BITS 8
+
+#else
+#error "_SAMPLE_RATE_XXXXX must be defined to valid rate"
+#endif
+
+#endif /* #ifndef _EAS_AUDIOCONST_H */
+
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