2 * Copyright (C) 2014 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 /* #define LOG_NDEBUG 0 */
18 #define LOG_TAG "audio_utils_format"
22 #include <audio_utils/primitives.h>
23 #include <audio_utils/format.h>
25 void memcpy_by_audio_format(void *dst, audio_format_t dst_format,
26 const void *src, audio_format_t src_format, size_t count)
28 /* default cases for error falls through to fatal log below. */
29 if (dst_format == src_format) {
31 case AUDIO_FORMAT_PCM_16_BIT:
32 case AUDIO_FORMAT_PCM_FLOAT:
33 case AUDIO_FORMAT_PCM_8_BIT:
34 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
35 case AUDIO_FORMAT_PCM_32_BIT:
36 case AUDIO_FORMAT_PCM_8_24_BIT:
38 // TODO: should assert if memory regions overlap.
39 memcpy(dst, src, count * audio_bytes_per_sample(dst_format));
47 case AUDIO_FORMAT_PCM_16_BIT:
49 case AUDIO_FORMAT_PCM_FLOAT:
50 memcpy_to_i16_from_float((int16_t*)dst, (float*)src, count);
52 case AUDIO_FORMAT_PCM_8_BIT:
53 memcpy_to_i16_from_u8((int16_t*)dst, (uint8_t*)src, count);
55 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
56 memcpy_to_i16_from_p24((int16_t*)dst, (uint8_t*)src, count);
58 case AUDIO_FORMAT_PCM_32_BIT:
59 memcpy_to_i16_from_i32((int16_t*)dst, (int32_t*)src, count);
61 case AUDIO_FORMAT_PCM_8_24_BIT:
62 memcpy_to_i16_from_q8_23((int16_t*)dst, (int32_t*)src, count);
68 case AUDIO_FORMAT_PCM_FLOAT:
70 case AUDIO_FORMAT_PCM_16_BIT:
71 memcpy_to_float_from_i16((float*)dst, (int16_t*)src, count);
73 case AUDIO_FORMAT_PCM_8_BIT:
74 memcpy_to_float_from_u8((float*)dst, (uint8_t*)src, count);
76 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
77 memcpy_to_float_from_p24((float*)dst, (uint8_t*)src, count);
79 case AUDIO_FORMAT_PCM_32_BIT:
80 memcpy_to_float_from_i32((float*)dst, (int32_t*)src, count);
82 case AUDIO_FORMAT_PCM_8_24_BIT:
83 memcpy_to_float_from_q8_23((float*)dst, (int32_t*)src, count);
89 case AUDIO_FORMAT_PCM_8_BIT:
91 case AUDIO_FORMAT_PCM_16_BIT:
92 memcpy_to_u8_from_i16((uint8_t*)dst, (int16_t*)src, count);
94 case AUDIO_FORMAT_PCM_FLOAT:
95 memcpy_to_u8_from_float((uint8_t*)dst, (float*)src, count);
101 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
102 switch (src_format) {
103 case AUDIO_FORMAT_PCM_16_BIT:
104 memcpy_to_p24_from_i16((uint8_t*)dst, (int16_t*)src, count);
106 case AUDIO_FORMAT_PCM_FLOAT:
107 memcpy_to_p24_from_float((uint8_t*)dst, (float*)src, count);
109 case AUDIO_FORMAT_PCM_32_BIT:
110 memcpy_to_p24_from_i32((uint8_t*)dst, (int32_t*)src, count);
112 case AUDIO_FORMAT_PCM_8_24_BIT:
113 memcpy_to_p24_from_q8_23((uint8_t*)dst, (int32_t*)src, count);
119 case AUDIO_FORMAT_PCM_32_BIT:
120 switch (src_format) {
121 case AUDIO_FORMAT_PCM_16_BIT:
122 memcpy_to_i32_from_i16((int32_t*)dst, (int16_t*)src, count);
124 case AUDIO_FORMAT_PCM_FLOAT:
125 memcpy_to_i32_from_float((int32_t*)dst, (float*)src, count);
127 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
128 memcpy_to_i32_from_p24((int32_t*)dst, (uint8_t *)src, count);
134 case AUDIO_FORMAT_PCM_8_24_BIT:
135 switch (src_format) {
136 case AUDIO_FORMAT_PCM_16_BIT:
137 memcpy_to_q8_23_from_i16((int32_t*)dst, (int16_t*)src, count);
139 case AUDIO_FORMAT_PCM_FLOAT:
140 memcpy_to_q8_23_from_float_with_clamp((int32_t*)dst, (float*)src, count);
142 case AUDIO_FORMAT_PCM_24_BIT_PACKED: {
143 memcpy_to_q8_23_from_p24((int32_t *)dst, (uint8_t *)src, count);
153 LOG_ALWAYS_FATAL("invalid src format %#x for dst format %#x",
154 src_format, dst_format);
157 size_t memcpy_by_index_array_initialization_from_channel_mask(int8_t *idxary, size_t arysize,
158 audio_channel_mask_t dst_channel_mask, audio_channel_mask_t src_channel_mask)
160 const audio_channel_representation_t src_representation =
161 audio_channel_mask_get_representation(src_channel_mask);
162 const audio_channel_representation_t dst_representation =
163 audio_channel_mask_get_representation(dst_channel_mask);
164 const uint32_t src_bits = audio_channel_mask_get_bits(src_channel_mask);
165 const uint32_t dst_bits = audio_channel_mask_get_bits(dst_channel_mask);
167 switch (src_representation) {
168 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
169 switch (dst_representation) {
170 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
171 return memcpy_by_index_array_initialization(idxary, arysize,
173 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
174 return memcpy_by_index_array_initialization_dst_index(idxary, arysize,
180 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
181 switch (dst_representation) {
182 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
183 return memcpy_by_index_array_initialization_src_index(idxary, arysize,
185 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
186 return memcpy_by_index_array_initialization(idxary, arysize,