我設法從源代碼編譯android並安裝在我的手機上。我應該從一開始就說我不是一個C++開發人員,但我希望能夠弄清楚如何將變量中保存的數據輸出到文件中。輸出到Android的c + +源文件
後有點谷歌搜索,我想出了下面的代碼:
#include <iostream>
#include <fstream>
using namespace std;
ofstream myfile;
myfile.open ("/data/wav.raw");
myfile < mMixBuffer;
myfile.close();
frameworks/base/services/audioflinger/AudioFlinger.cpp: In member function 'virtual bool android::AudioFlinger::MixerThread::threadLoop()':
frameworks/base/services/audioflinger/AudioFlinger.cpp:1769: error: 'ofstream' was not declared in this scope
frameworks/base/services/audioflinger/AudioFlinger.cpp:1769: error: expected ';' before 'myfile'
frameworks/base/services/audioflinger/AudioFlinger.cpp:1770: error: 'myfile' was not declared in this scope
在此之後沒有工作,我想這再次給了編譯錯誤:
int fd;
fd = ::open("/data/wav.raw",O_WRONLY | O_APPEND);
::write(fd,mMixBuffer,minBufferSize);
::close(fd);
frameworks/base/services/audioflinger/AudioFlinger.cpp: In member function 'virtual bool android::AudioFlinger::MixerThread::threadLoop()':
frameworks/base/services/audioflinger/AudioFlinger.cpp:1770: error: '::open' has not been declared
frameworks/base/services/audioflinger/AudioFlinger.cpp:1770: error: 'O_WRONLY' was not declared in this scope
frameworks/base/services/audioflinger/AudioFlinger.cpp:1770: error: 'O_APPEND' was not declared in this scope
如果它不明朗上面我試圖將大小爲minBufferSize
的變量mMixBuffer
的內容附加到文件/data/wav.raw
。有沒有人有任何想法我可以做到這一點?
當您收到編譯錯誤時,總是會有所幫助,以顯示這些錯誤實際上是什麼。看起來你可能不會將這些代碼放入任何函數中,但很難確定。 –
好的,對不起 - 我認爲這可能代碼會非常不正確,以至於編譯錯誤會讓帖子混亂而不是幫助。我現在將添加它們。 – James
你確定你有第一個代碼示例的'#include',第二個'#include '? –