1// Copyright 2017 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include <audio-proto/audio-proto.h>
6
7namespace audio {
8namespace audio_proto {
9
10#define WITH_FLAGS(_str) \
11    ((sample_format & AUDIO_SAMPLE_FORMAT_FLAG_UNSIGNED)        \
12    ? ((sample_format & AUDIO_SAMPLE_FORMAT_FLAG_INVERT_ENDIAN) \
13        ? _str "_UNSIGNED [InvEndian]" : _str "_UNSIGNED")       \
14    : ((sample_format & AUDIO_SAMPLE_FORMAT_FLAG_INVERT_ENDIAN) \
15        ? _str " [InvEndian]" : _str))
16
17const char* SampleFormatToString(SampleFormat sample_format) {
18    auto fmt = static_cast<SampleFormat>(sample_format & ~AUDIO_SAMPLE_FORMAT_FLAG_MASK);
19    switch (fmt) {
20    case AUDIO_SAMPLE_FORMAT_BITSTREAM:    return WITH_FLAGS("BITSTREAM");
21    case AUDIO_SAMPLE_FORMAT_8BIT:         return WITH_FLAGS("8BIT");
22    case AUDIO_SAMPLE_FORMAT_16BIT:        return WITH_FLAGS("16BIT");
23    case AUDIO_SAMPLE_FORMAT_20BIT_PACKED: return WITH_FLAGS("20BIT_PACKED");
24    case AUDIO_SAMPLE_FORMAT_24BIT_PACKED: return WITH_FLAGS("24BIT_PACKED");
25    case AUDIO_SAMPLE_FORMAT_20BIT_IN32:   return WITH_FLAGS("20BIT_IN32");
26    case AUDIO_SAMPLE_FORMAT_24BIT_IN32:   return WITH_FLAGS("24BIT_IN32");
27    case AUDIO_SAMPLE_FORMAT_32BIT_FLOAT:  return WITH_FLAGS("32BIT_FLOAT");
28    default:                               return WITH_FLAGS("<unknown>");
29    }
30}
31#undef WITH_FLAGS
32
33}  // namespace audio_proto
34}  // namespace audio
35