1 /*
2 * Copyright 2023 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 "asrc_resampler.cc"
18
19 #include <cstdio>
20 #include <iostream>
21
22 // TODO(b/369381361) Enfore -Wmissing-prototypes
23 #pragma GCC diagnostic ignored "-Wmissing-prototypes"
24
25 bluetooth::common::MessageLoopThread message_loop_thread("main message loop");
get_main_thread()26 bluetooth::common::MessageLoopThread* get_main_thread() { return &message_loop_thread; }
27
28 namespace bluetooth::hal {
Register(ReadClockHandler *)29 void LinkClocker::Register(ReadClockHandler*) {}
Unregister()30 void LinkClocker::Unregister() {}
31 } // namespace bluetooth::hal
32
33 namespace bluetooth::audio::asrc {
34
35 class SourceAudioHalAsrcTest : public SourceAudioHalAsrc {
36 public:
SourceAudioHalAsrcTest(int channels,int bitdepth)37 SourceAudioHalAsrcTest(int channels, int bitdepth)
38 : SourceAudioHalAsrc(&message_loop_thread, channels, 48000, bitdepth, 10000) {}
39
40 template <typename T>
Resample(double ratio,const T * in,size_t in_length,size_t * in_count,T * out,size_t out_length,size_t * out_count)41 void Resample(double ratio, const T* in, size_t in_length, size_t* in_count, T* out,
42 size_t out_length, size_t* out_count) {
43 auto resamplers = *resamplers_;
44 auto channels = resamplers.size();
45 unsigned sub_q26;
46
47 for (auto& r : resamplers) {
48 r.Resample(round(ldexp(ratio, 26)), in, channels, in_length / channels, in_count, out,
49 channels, out_length / channels, out_count, &sub_q26);
50 }
51 }
52 };
53
resample_i16(int channels,int bitdepth,double ratio,const int16_t * in,size_t in_length,int16_t * out,size_t out_length)54 extern "C" void resample_i16(int channels, int bitdepth, double ratio, const int16_t* in,
55 size_t in_length, int16_t* out, size_t out_length) {
56 size_t in_count, out_count;
57
58 SourceAudioHalAsrcTest(channels, bitdepth)
59 .Resample<int16_t>(ratio, in, in_length, &in_count, out, out_length, &out_count);
60
61 if (out_count < out_length) {
62 fprintf(stderr, "wrong output size: %zu:%zu %zu:%zu\n", in_length, in_count, out_length,
63 out_count);
64 }
65
66 return;
67 }
68
resample_i32(int channels,int bitdepth,double ratio,const int32_t * in,size_t in_length,int32_t * out,size_t out_length)69 extern "C" void resample_i32(int channels, int bitdepth, double ratio, const int32_t* in,
70 size_t in_length, int32_t* out, size_t out_length) {
71 size_t in_count, out_count;
72
73 SourceAudioHalAsrcTest(channels, bitdepth)
74 .Resample<int32_t>(ratio, in, in_length, &in_count, out, out_length, &out_count);
75
76 if (out_count < out_length) {
77 fprintf(stderr, "wrong output size: %zu:%zu %zu:%zu\n", in_length, in_count, out_length,
78 out_count);
79 }
80
81 return;
82 }
83
84 } // namespace bluetooth::audio::asrc
85