1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17 #include <assert.h>
18 #include <audio_utils/format.h>
19 #include <audio_utils/primitives.h>
20
memcpy_by_audio_format(void * dst,audio_format_t dst_format,const void * src,audio_format_t src_format,size_t count)21 void memcpy_by_audio_format(void *dst, audio_format_t dst_format,
22 const void *src, audio_format_t src_format, size_t count)
23 {
24 /* default cases for error falls through to assert(false) below. */
25 if (dst_format == src_format) {
26 switch (dst_format) {
27 case AUDIO_FORMAT_PCM_16_BIT:
28 case AUDIO_FORMAT_PCM_FLOAT:
29 case AUDIO_FORMAT_PCM_8_BIT:
30 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
31 case AUDIO_FORMAT_PCM_32_BIT:
32 case AUDIO_FORMAT_PCM_8_24_BIT:
33 if (dst != src) {
34 // TODO: should assert if memory regions overlap.
35 memcpy(dst, src, count * audio_bytes_per_sample(dst_format));
36 }
37 return;
38 default:
39 break;
40 }
41 }
42 switch (dst_format) {
43 case AUDIO_FORMAT_PCM_16_BIT:
44 switch (src_format) {
45 case AUDIO_FORMAT_PCM_FLOAT:
46 memcpy_to_i16_from_float((int16_t*)dst, (float*)src, count);
47 return;
48 case AUDIO_FORMAT_PCM_8_BIT:
49 memcpy_to_i16_from_u8((int16_t*)dst, (uint8_t*)src, count);
50 return;
51 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
52 memcpy_to_i16_from_p24((int16_t*)dst, (uint8_t*)src, count);
53 return;
54 case AUDIO_FORMAT_PCM_32_BIT:
55 memcpy_to_i16_from_i32((int16_t*)dst, (int32_t*)src, count);
56 return;
57 case AUDIO_FORMAT_PCM_8_24_BIT:
58 memcpy_to_i16_from_q8_23((int16_t*)dst, (int32_t*)src, count);
59 return;
60 default:
61 break;
62 }
63 break;
64 case AUDIO_FORMAT_PCM_FLOAT:
65 switch (src_format) {
66 case AUDIO_FORMAT_PCM_16_BIT:
67 memcpy_to_float_from_i16((float*)dst, (int16_t*)src, count);
68 return;
69 case AUDIO_FORMAT_PCM_8_BIT:
70 memcpy_to_float_from_u8((float*)dst, (uint8_t*)src, count);
71 return;
72 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
73 memcpy_to_float_from_p24((float*)dst, (uint8_t*)src, count);
74 return;
75 case AUDIO_FORMAT_PCM_32_BIT:
76 memcpy_to_float_from_i32((float*)dst, (int32_t*)src, count);
77 return;
78 case AUDIO_FORMAT_PCM_8_24_BIT:
79 memcpy_to_float_from_q8_23((float*)dst, (int32_t*)src, count);
80 return;
81 default:
82 break;
83 }
84 break;
85 case AUDIO_FORMAT_PCM_8_BIT:
86 switch (src_format) {
87 case AUDIO_FORMAT_PCM_16_BIT:
88 memcpy_to_u8_from_i16((uint8_t*)dst, (int16_t*)src, count);
89 return;
90 case AUDIO_FORMAT_PCM_FLOAT:
91 memcpy_to_u8_from_float((uint8_t*)dst, (float*)src, count);
92 return;
93 // The following converts HAL to AudioRecord formats.
94 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
95 memcpy_to_u8_from_p24((uint8_t*)dst, (uint8_t*)src, count);
96 return;
97 case AUDIO_FORMAT_PCM_32_BIT:
98 memcpy_to_u8_from_i32((uint8_t*)dst, (int32_t*)src, count);
99 return;
100 case AUDIO_FORMAT_PCM_8_24_BIT:
101 memcpy_to_u8_from_q8_23((uint8_t*)dst, (int32_t*)src, count);
102 return;
103 default:
104 break;
105 }
106 break;
107 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
108 switch (src_format) {
109 case AUDIO_FORMAT_PCM_16_BIT:
110 memcpy_to_p24_from_i16((uint8_t*)dst, (int16_t*)src, count);
111 return;
112 case AUDIO_FORMAT_PCM_FLOAT:
113 memcpy_to_p24_from_float((uint8_t*)dst, (float*)src, count);
114 return;
115 case AUDIO_FORMAT_PCM_32_BIT:
116 memcpy_to_p24_from_i32((uint8_t*)dst, (int32_t*)src, count);
117 return;
118 case AUDIO_FORMAT_PCM_8_24_BIT:
119 memcpy_to_p24_from_q8_23((uint8_t*)dst, (int32_t*)src, count);
120 return;
121 default:
122 break;
123 }
124 break;
125 case AUDIO_FORMAT_PCM_32_BIT:
126 switch (src_format) {
127 case AUDIO_FORMAT_PCM_16_BIT:
128 memcpy_to_i32_from_i16((int32_t*)dst, (int16_t*)src, count);
129 return;
130 case AUDIO_FORMAT_PCM_FLOAT:
131 memcpy_to_i32_from_float((int32_t*)dst, (float*)src, count);
132 return;
133 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
134 memcpy_to_i32_from_p24((int32_t*)dst, (uint8_t *)src, count);
135 return;
136 default:
137 break;
138 }
139 break;
140 case AUDIO_FORMAT_PCM_8_24_BIT:
141 switch (src_format) {
142 case AUDIO_FORMAT_PCM_16_BIT:
143 memcpy_to_q8_23_from_i16((int32_t*)dst, (int16_t*)src, count);
144 return;
145 case AUDIO_FORMAT_PCM_FLOAT:
146 memcpy_to_q8_23_from_float_with_clamp((int32_t*)dst, (float*)src, count);
147 return;
148 case AUDIO_FORMAT_PCM_24_BIT_PACKED: {
149 memcpy_to_q8_23_from_p24((int32_t *)dst, (uint8_t *)src, count);
150 return;
151 }
152 default:
153 break;
154 }
155 break;
156 default:
157 break;
158 }
159 // invalid src format for dst format
160 assert(false);
161 }
162
memcpy_by_index_array_initialization_from_channel_mask(int8_t * idxary,size_t arysize,audio_channel_mask_t dst_channel_mask,audio_channel_mask_t src_channel_mask)163 size_t memcpy_by_index_array_initialization_from_channel_mask(int8_t *idxary, size_t arysize,
164 audio_channel_mask_t dst_channel_mask, audio_channel_mask_t src_channel_mask)
165 {
166 const audio_channel_representation_t src_representation =
167 audio_channel_mask_get_representation(src_channel_mask);
168 const audio_channel_representation_t dst_representation =
169 audio_channel_mask_get_representation(dst_channel_mask);
170 const uint32_t src_bits = audio_channel_mask_get_bits(src_channel_mask);
171 const uint32_t dst_bits = audio_channel_mask_get_bits(dst_channel_mask);
172
173 switch (src_representation) {
174 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
175 switch (dst_representation) {
176 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
177 return memcpy_by_index_array_initialization(idxary, arysize,
178 dst_bits, src_bits);
179 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
180 return memcpy_by_index_array_initialization_dst_index(idxary, arysize,
181 dst_bits, src_bits);
182 default:
183 return 0;
184 }
185 break;
186 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
187 switch (dst_representation) {
188 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
189 return memcpy_by_index_array_initialization_src_index(idxary, arysize,
190 dst_bits, src_bits);
191 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
192 return memcpy_by_index_array_initialization(idxary, arysize,
193 dst_bits, src_bits);
194 default:
195 return 0;
196 }
197 break;
198 default:
199 return 0;
200 }
201 }
202