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 /* #define LOG_NDEBUG 0 */
18 #define LOG_TAG "audio_utils_format"
19
20 #include <cutils/log.h>
21 #include <audio_utils/primitives.h>
22 #include <audio_utils/format.h>
23
memcpy_by_audio_format(void * dst,audio_format_t dst_format,const void * src,audio_format_t src_format,size_t count)24 void memcpy_by_audio_format(void *dst, audio_format_t dst_format,
25 const void *src, audio_format_t src_format, size_t count)
26 {
27 /* default cases for error falls through to fatal log below. */
28 if (dst_format == src_format) {
29 switch (dst_format) {
30 case AUDIO_FORMAT_PCM_16_BIT:
31 case AUDIO_FORMAT_PCM_FLOAT:
32 case AUDIO_FORMAT_PCM_8_BIT:
33 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
34 case AUDIO_FORMAT_PCM_32_BIT:
35 case AUDIO_FORMAT_PCM_8_24_BIT:
36 memcpy(dst, src, count * audio_bytes_per_sample(dst_format));
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 default:
94 break;
95 }
96 break;
97 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
98 switch (src_format) {
99 case AUDIO_FORMAT_PCM_16_BIT:
100 memcpy_to_p24_from_i16((uint8_t*)dst, (int16_t*)src, count);
101 return;
102 case AUDIO_FORMAT_PCM_FLOAT:
103 memcpy_to_p24_from_float((uint8_t*)dst, (float*)src, count);
104 return;
105 case AUDIO_FORMAT_PCM_32_BIT:
106 memcpy_to_p24_from_i32((uint8_t*)dst, (int32_t*)src, count);
107 return;
108 case AUDIO_FORMAT_PCM_8_24_BIT:
109 memcpy_to_p24_from_q8_23((uint8_t*)dst, (int32_t*)src, count);
110 return;
111 default:
112 break;
113 }
114 break;
115 case AUDIO_FORMAT_PCM_32_BIT:
116 switch (src_format) {
117 case AUDIO_FORMAT_PCM_16_BIT:
118 memcpy_to_i32_from_i16((int32_t*)dst, (int16_t*)src, count);
119 return;
120 case AUDIO_FORMAT_PCM_FLOAT:
121 memcpy_to_i32_from_float((int32_t*)dst, (float*)src, count);
122 return;
123 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
124 memcpy_to_i32_from_p24((int32_t*)dst, (uint8_t *)src, count);
125 return;
126 default:
127 break;
128 }
129 break;
130 case AUDIO_FORMAT_PCM_8_24_BIT:
131 switch (src_format) {
132 case AUDIO_FORMAT_PCM_16_BIT:
133 memcpy_to_q8_23_from_i16((int32_t*)dst, (int16_t*)src, count);
134 return;
135 case AUDIO_FORMAT_PCM_FLOAT:
136 memcpy_to_q8_23_from_float_with_clamp((int32_t*)dst, (float*)src, count);
137 return;
138 case AUDIO_FORMAT_PCM_24_BIT_PACKED: {
139 memcpy_to_q8_23_from_p24((int32_t *)dst, (uint8_t *)src, count);
140 return;
141 }
142 default:
143 break;
144 }
145 break;
146 default:
147 break;
148 }
149 LOG_ALWAYS_FATAL("invalid src format %#x for dst format %#x",
150 src_format, dst_format);
151 }
152
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)153 size_t memcpy_by_index_array_initialization_from_channel_mask(int8_t *idxary, size_t arysize,
154 audio_channel_mask_t dst_channel_mask, audio_channel_mask_t src_channel_mask)
155 {
156 const audio_channel_representation_t src_representation =
157 audio_channel_mask_get_representation(src_channel_mask);
158 const audio_channel_representation_t dst_representation =
159 audio_channel_mask_get_representation(dst_channel_mask);
160 const uint32_t src_bits = audio_channel_mask_get_bits(src_channel_mask);
161 const uint32_t dst_bits = audio_channel_mask_get_bits(dst_channel_mask);
162
163 switch (src_representation) {
164 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
165 switch (dst_representation) {
166 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
167 return memcpy_by_index_array_initialization(idxary, arysize,
168 dst_bits, src_bits);
169 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
170 return memcpy_by_index_array_initialization_dst_index(idxary, arysize,
171 dst_bits, src_bits);
172 default:
173 return 0;
174 }
175 break;
176 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
177 switch (dst_representation) {
178 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
179 return memcpy_by_index_array_initialization_src_index(idxary, arysize,
180 dst_bits, src_bits);
181 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
182 return memcpy_by_index_array_initialization(idxary, arysize,
183 dst_bits, src_bits);
184 default:
185 return 0;
186 }
187 break;
188 default:
189 return 0;
190 }
191 }
192