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https://github.com/u0u0/Cocos2d-Lua-Community.git
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57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
// Copyright 2021 KeNan Liu
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdlib.h>
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#include <memory.h>
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#include <string.h>
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#include "RDAudioMP3.h"
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#define MINIMP3_IMPLEMENTATION
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#define MINIMP3_FLOAT_OUTPUT
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#include "minimp3_ex.h"
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int decodeMP3(unsigned char *mp3Data,
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int mp3Size,
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unsigned char **pcmData,
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int *pcmChannels,
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int *pcmRate,
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int *pcmSize)
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{
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mp3dec_t mp3d;
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mp3dec_file_info_t info;
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memset(&info, 0, sizeof(info));
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int ret = mp3dec_load_buf(&mp3d, mp3Data, mp3Size, &info, 0, 0);
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if(0 != ret) {
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printf("error: mp3dec_load_buf %d\n", ret);
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return -1;
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}
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int size = info.samples * sizeof(int16_t);
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int16_t* buffer = (int16_t *)malloc(size);
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if (!buffer) {
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printf("error: decodeMP3 not enough memory\n");
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return -1;
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}
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mp3dec_f32_to_s16(info.buffer, buffer, info.samples);
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free(info.buffer);
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*pcmData = (unsigned char*)buffer;
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*pcmChannels = info.channels;
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*pcmRate = info.hz;
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*pcmSize = size;
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return 0;
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}
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