1 /*******************************************************************************
2 * Copyright 2009-2016 Jörg Müller
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 "respec/ConverterReader.h"
18
19 AUD_NAMESPACE_BEGIN
20
ConverterReader(std::shared_ptr<IReader> reader,DeviceSpecs specs)21 ConverterReader::ConverterReader(std::shared_ptr<IReader> reader,
22 DeviceSpecs specs) :
23 EffectReader(reader),
24 m_format(specs.format)
25 {
26 switch(m_format)
27 {
28 case FORMAT_U8:
29 m_convert = convert_float_u8;
30 break;
31 case FORMAT_S16:
32 m_convert = convert_float_s16;
33 break;
34 case FORMAT_S24:
35 #ifdef __BIG_ENDIAN__
36 m_convert = convert_float_s24_be;
37 #else
38 m_convert = convert_float_s24_le;
39 #endif
40 break;
41 case FORMAT_S32:
42 m_convert = convert_float_s32;
43 break;
44 case FORMAT_FLOAT32:
45 m_convert = convert_copy<float>;
46 break;
47 case FORMAT_FLOAT64:
48 m_convert = convert_float_double;
49 break;
50 default:
51 break;
52 }
53 }
54
read(int & length,bool & eos,sample_t * buffer)55 void ConverterReader::read(int& length, bool& eos, sample_t* buffer)
56 {
57 Specs specs = m_reader->getSpecs();
58 int samplesize = AUD_SAMPLE_SIZE(specs);
59
60 m_buffer.assureSize(length * samplesize);
61
62 m_reader->read(length, eos, m_buffer.getBuffer());
63
64 m_convert((data_t*)buffer, (data_t*)m_buffer.getBuffer(),
65 length * specs.channels);
66 }
67
68 AUD_NAMESPACE_END
69