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 <log/log.h>
21
22 #include <audio_utils/primitives.h>
23 #include <audio_utils/format.h>
24
memcpy_by_audio_format(void * dst,audio_format_t dst_format,const void * src,audio_format_t src_format,size_t count)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)
27 {
28 /* default cases for error falls through to fatal log below. */
29 if (dst_format == src_format) {
30 switch (dst_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:
37 memcpy(dst, src, count * audio_bytes_per_sample(dst_format));
38 return;
39 default:
40 break;
41 }
42 }
43 switch (dst_format) {
44 case AUDIO_FORMAT_PCM_16_BIT:
45 switch (src_format) {
46 case AUDIO_FORMAT_PCM_FLOAT:
47 memcpy_to_i16_from_float((int16_t*)dst, (float*)src, count);
48 return;
49 case AUDIO_FORMAT_PCM_8_BIT:
50 memcpy_to_i16_from_u8((int16_t*)dst, (uint8_t*)src, count);
51 return;
52 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
53 memcpy_to_i16_from_p24((int16_t*)dst, (uint8_t*)src, count);
54 return;
55 case AUDIO_FORMAT_PCM_32_BIT:
56 memcpy_to_i16_from_i32((int16_t*)dst, (int32_t*)src, count);
57 return;
58 case AUDIO_FORMAT_PCM_8_24_BIT:
59 memcpy_to_i16_from_q8_23((int16_t*)dst, (int32_t*)src, count);
60 return;
61 default:
62 break;
63 }
64 break;
65 case AUDIO_FORMAT_PCM_FLOAT:
66 switch (src_format) {
67 case AUDIO_FORMAT_PCM_16_BIT:
68 memcpy_to_float_from_i16((float*)dst, (int16_t*)src, count);
69 return;
70 case AUDIO_FORMAT_PCM_8_BIT:
71 memcpy_to_float_from_u8((float*)dst, (uint8_t*)src, count);
72 return;
73 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
74 memcpy_to_float_from_p24((float*)dst, (uint8_t*)src, count);
75 return;
76 case AUDIO_FORMAT_PCM_32_BIT:
77 memcpy_to_float_from_i32((float*)dst, (int32_t*)src, count);
78 return;
79 case AUDIO_FORMAT_PCM_8_24_BIT:
80 memcpy_to_float_from_q8_23((float*)dst, (int32_t*)src, count);
81 return;
82 default:
83 break;
84 }
85 break;
86 case AUDIO_FORMAT_PCM_8_BIT:
87 switch (src_format) {
88 case AUDIO_FORMAT_PCM_16_BIT:
89 memcpy_to_u8_from_i16((uint8_t*)dst, (int16_t*)src, count);
90 return;
91 case AUDIO_FORMAT_PCM_FLOAT:
92 memcpy_to_u8_from_float((uint8_t*)dst, (float*)src, count);
93 return;
94 default:
95 break;
96 }
97 break;
98 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
99 switch (src_format) {
100 case AUDIO_FORMAT_PCM_16_BIT:
101 memcpy_to_p24_from_i16((uint8_t*)dst, (int16_t*)src, count);
102 return;
103 case AUDIO_FORMAT_PCM_FLOAT:
104 memcpy_to_p24_from_float((uint8_t*)dst, (float*)src, count);
105 return;
106 case AUDIO_FORMAT_PCM_32_BIT:
107 memcpy_to_p24_from_i32((uint8_t*)dst, (int32_t*)src, count);
108 return;
109 case AUDIO_FORMAT_PCM_8_24_BIT:
110 memcpy_to_p24_from_q8_23((uint8_t*)dst, (int32_t*)src, count);
111 return;
112 default:
113 break;
114 }
115 break;
116 case AUDIO_FORMAT_PCM_32_BIT:
117 switch (src_format) {
118 case AUDIO_FORMAT_PCM_16_BIT:
119 memcpy_to_i32_from_i16((int32_t*)dst, (int16_t*)src, count);
120 return;
121 case AUDIO_FORMAT_PCM_FLOAT:
122 memcpy_to_i32_from_float((int32_t*)dst, (float*)src, count);
123 return;
124 case AUDIO_FORMAT_PCM_24_BIT_PACKED:
125 memcpy_to_i32_from_p24((int32_t*)dst, (uint8_t *)src, count);
126 return;
127 default:
128 break;
129 }
130 break;
131 case AUDIO_FORMAT_PCM_8_24_BIT:
132 switch (src_format) {
133 case AUDIO_FORMAT_PCM_16_BIT:
134 memcpy_to_q8_23_from_i16((int32_t*)dst, (int16_t*)src, count);
135 return;
136 case AUDIO_FORMAT_PCM_FLOAT:
137 memcpy_to_q8_23_from_float_with_clamp((int32_t*)dst, (float*)src, count);
138 return;
139 case AUDIO_FORMAT_PCM_24_BIT_PACKED: {
140 memcpy_to_q8_23_from_p24((int32_t *)dst, (uint8_t *)src, count);
141 return;
142 }
143 default:
144 break;
145 }
146 break;
147 default:
148 break;
149 }
150 LOG_ALWAYS_FATAL("invalid src format %#x for dst format %#x",
151 src_format, dst_format);
152 }
153
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)154 size_t memcpy_by_index_array_initialization_from_channel_mask(int8_t *idxary, size_t arysize,
155 audio_channel_mask_t dst_channel_mask, audio_channel_mask_t src_channel_mask)
156 {
157 const audio_channel_representation_t src_representation =
158 audio_channel_mask_get_representation(src_channel_mask);
159 const audio_channel_representation_t dst_representation =
160 audio_channel_mask_get_representation(dst_channel_mask);
161 const uint32_t src_bits = audio_channel_mask_get_bits(src_channel_mask);
162 const uint32_t dst_bits = audio_channel_mask_get_bits(dst_channel_mask);
163
164 switch (src_representation) {
165 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
166 switch (dst_representation) {
167 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
168 return memcpy_by_index_array_initialization(idxary, arysize,
169 dst_bits, src_bits);
170 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
171 return memcpy_by_index_array_initialization_dst_index(idxary, arysize,
172 dst_bits, src_bits);
173 default:
174 return 0;
175 }
176 break;
177 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
178 switch (dst_representation) {
179 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
180 return memcpy_by_index_array_initialization_src_index(idxary, arysize,
181 dst_bits, src_bits);
182 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
183 return memcpy_by_index_array_initialization(idxary, arysize,
184 dst_bits, src_bits);
185 default:
186 return 0;
187 }
188 break;
189 default:
190 return 0;
191 }
192 }
193