xref: /aosp_15_r20/external/oboe/src/common/SourceI16Caller.h (revision 05767d913155b055644481607e6fa1e35e2fe72c)
1*05767d91SRobert Wu /*
2*05767d91SRobert Wu  * Copyright 2019 The Android Open Source Project
3*05767d91SRobert Wu  *
4*05767d91SRobert Wu  * Licensed under the Apache License, Version 2.0 (the "License");
5*05767d91SRobert Wu  * you may not use this file except in compliance with the License.
6*05767d91SRobert Wu  * You may obtain a copy of the License at
7*05767d91SRobert Wu  *
8*05767d91SRobert Wu  *      http://www.apache.org/licenses/LICENSE-2.0
9*05767d91SRobert Wu  *
10*05767d91SRobert Wu  * Unless required by applicable law or agreed to in writing, software
11*05767d91SRobert Wu  * distributed under the License is distributed on an "AS IS" BASIS,
12*05767d91SRobert Wu  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*05767d91SRobert Wu  * See the License for the specific language governing permissions and
14*05767d91SRobert Wu  * limitations under the License.
15*05767d91SRobert Wu  */
16*05767d91SRobert Wu 
17*05767d91SRobert Wu #ifndef OBOE_SOURCE_I16_CALLER_H
18*05767d91SRobert Wu #define OBOE_SOURCE_I16_CALLER_H
19*05767d91SRobert Wu 
20*05767d91SRobert Wu #include <unistd.h>
21*05767d91SRobert Wu #include <sys/types.h>
22*05767d91SRobert Wu 
23*05767d91SRobert Wu #include "flowgraph/FlowGraphNode.h"
24*05767d91SRobert Wu #include "AudioSourceCaller.h"
25*05767d91SRobert Wu #include "FixedBlockReader.h"
26*05767d91SRobert Wu 
27*05767d91SRobert Wu namespace oboe {
28*05767d91SRobert Wu /**
29*05767d91SRobert Wu  * AudioSource that uses callback to get more data.
30*05767d91SRobert Wu  */
31*05767d91SRobert Wu class SourceI16Caller : public AudioSourceCaller {
32*05767d91SRobert Wu public:
SourceI16Caller(int32_t channelCount,int32_t framesPerCallback)33*05767d91SRobert Wu     SourceI16Caller(int32_t channelCount, int32_t framesPerCallback)
34*05767d91SRobert Wu     : AudioSourceCaller(channelCount, framesPerCallback, sizeof(int16_t)) {
35*05767d91SRobert Wu         mConversionBuffer = std::make_unique<int16_t[]>(static_cast<size_t>(channelCount)
36*05767d91SRobert Wu                 * static_cast<size_t>(output.getFramesPerBuffer()));
37*05767d91SRobert Wu     }
38*05767d91SRobert Wu 
39*05767d91SRobert Wu     int32_t onProcess(int32_t numFrames) override;
40*05767d91SRobert Wu 
getName()41*05767d91SRobert Wu     const char *getName() override {
42*05767d91SRobert Wu         return "SourceI16Caller";
43*05767d91SRobert Wu     }
44*05767d91SRobert Wu private:
45*05767d91SRobert Wu     std::unique_ptr<int16_t[]>  mConversionBuffer;
46*05767d91SRobert Wu };
47*05767d91SRobert Wu 
48*05767d91SRobert Wu }
49*05767d91SRobert Wu #endif //OBOE_SOURCE_I16_CALLER_H
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