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 default:
106 break;
107 }
108 break;
109 case AUDIO_FORMAT_PCM_32_BIT:
110 switch (src_format) {
111 case AUDIO_FORMAT_PCM_16_BIT:
112 memcpy_to_i32_from_i16((int32_t*)dst, (int16_t*)src, count);
113 return;
114 case AUDIO_FORMAT_PCM_FLOAT:
115 memcpy_to_i32_from_float((int32_t*)dst, (float*)src, count);
116 return;
117 default:
118 break;
119 }
120 break;
121 case AUDIO_FORMAT_PCM_8_24_BIT:
122 switch (src_format) {
123 case AUDIO_FORMAT_PCM_16_BIT:
124 memcpy_to_q8_23_from_i16((int32_t*)dst, (int16_t*)src, count);
125 return;
126 case AUDIO_FORMAT_PCM_FLOAT:
127 memcpy_to_q8_23_from_float_with_clamp((int32_t*)dst, (float*)src, count);
128 return;
129 case AUDIO_FORMAT_PCM_24_BIT_PACKED: {
130 memcpy_to_q8_23_from_p24((int32_t *)dst, (uint8_t *)src, count);
131 return;
132 }
133 default:
134 break;
135 }
136 break;
137 default:
138 break;
139 }
140 LOG_ALWAYS_FATAL("invalid src format %#x for dst format %#x",
141 src_format, dst_format);
142 }
143
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)144 size_t memcpy_by_index_array_initialization_from_channel_mask(int8_t *idxary, size_t arysize,
145 audio_channel_mask_t dst_channel_mask, audio_channel_mask_t src_channel_mask)
146 {
147 const audio_channel_representation_t src_representation =
148 audio_channel_mask_get_representation(src_channel_mask);
149 const audio_channel_representation_t dst_representation =
150 audio_channel_mask_get_representation(dst_channel_mask);
151 const uint32_t src_bits = audio_channel_mask_get_bits(src_channel_mask);
152 const uint32_t dst_bits = audio_channel_mask_get_bits(dst_channel_mask);
153
154 switch (src_representation) {
155 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
156 switch (dst_representation) {
157 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
158 return memcpy_by_index_array_initialization(idxary, arysize,
159 dst_bits, src_bits);
160 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
161 return memcpy_by_index_array_initialization_dst_index(idxary, arysize,
162 dst_bits, src_bits);
163 default:
164 return 0;
165 }
166 break;
167 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
168 switch (dst_representation) {
169 case AUDIO_CHANNEL_REPRESENTATION_POSITION:
170 return memcpy_by_index_array_initialization_src_index(idxary, arysize,
171 dst_bits, src_bits);
172 case AUDIO_CHANNEL_REPRESENTATION_INDEX:
173 return memcpy_by_index_array_initialization(idxary, arysize,
174 dst_bits, src_bits);
175 default:
176 return 0;
177 }
178 break;
179 default:
180 return 0;
181 }
182 }
183