521f7a8db7
BUG=webrtc:5925 Review-Url: https://codereview.webrtc.org/2019223004 Cr-Commit-Position: refs/heads/master@{#12975}
73 lines
2.7 KiB
C++
73 lines
2.7 KiB
C++
/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/modules/audio_device/android/opensles_common.h"
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#include <assert.h>
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#include <SLES/OpenSLES.h>
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#include "webrtc/base/arraysize.h"
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#include "webrtc/modules/audio_device/android/audio_common.h"
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using webrtc::kNumChannels;
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namespace webrtc {
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// Returns a string representation given an integer SL_RESULT_XXX code.
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// The mapping can be found in <SLES/OpenSLES.h>.
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const char* GetSLErrorString(size_t code) {
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static const char* sl_error_strings[] = {
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"SL_RESULT_SUCCESS", // 0
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"SL_RESULT_PRECONDITIONS_VIOLATED", // 1
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"SL_RESULT_PARAMETER_INVALID", // 2
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"SL_RESULT_MEMORY_FAILURE", // 3
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"SL_RESULT_RESOURCE_ERROR", // 4
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"SL_RESULT_RESOURCE_LOST", // 5
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"SL_RESULT_IO_ERROR", // 6
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"SL_RESULT_BUFFER_INSUFFICIENT", // 7
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"SL_RESULT_CONTENT_CORRUPTED", // 8
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"SL_RESULT_CONTENT_UNSUPPORTED", // 9
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"SL_RESULT_CONTENT_NOT_FOUND", // 10
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"SL_RESULT_PERMISSION_DENIED", // 11
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"SL_RESULT_FEATURE_UNSUPPORTED", // 12
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"SL_RESULT_INTERNAL_ERROR", // 13
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"SL_RESULT_UNKNOWN_ERROR", // 14
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"SL_RESULT_OPERATION_ABORTED", // 15
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"SL_RESULT_CONTROL_LOST", // 16
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};
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if (code >= arraysize(sl_error_strings)) {
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return "SL_RESULT_UNKNOWN_ERROR";
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}
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return sl_error_strings[code];
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}
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SLDataFormat_PCM CreatePcmConfiguration(int sample_rate) {
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SLDataFormat_PCM configuration;
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configuration.formatType = SL_DATAFORMAT_PCM;
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configuration.numChannels = kNumChannels;
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// According to the opensles documentation in the ndk:
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// samplesPerSec is actually in units of milliHz, despite the misleading name.
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// It further recommends using constants. However, this would lead to a lot
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// of boilerplate code so it is not done here.
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configuration.samplesPerSec = sample_rate * 1000;
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configuration.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
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configuration.containerSize = SL_PCMSAMPLEFORMAT_FIXED_16;
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configuration.channelMask = SL_SPEAKER_FRONT_CENTER;
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if (2 == configuration.numChannels) {
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configuration.channelMask =
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SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
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}
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configuration.endianness = SL_BYTEORDER_LITTLEENDIAN;
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return configuration;
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}
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} // namespace webrtc_opensl
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