Hi folks,
I ma trying to write a media player for Android 2.2. I am using
NDK_rb6 to build my JNI library written i C/C++ (under Ubuntu
11.04)... Actually, I faced a lot of problems of linking and
dependencies, I resolved a lot of the and I am stuck with this one:
~/dev/workspace/MyApp/jni/android-out.cpp:95: undefined reference to
`android::AudioTrack::set(int, unsigned int, int, int, int, unsigned
int, void (*)(int, void*, void*), void*, int,
android::sp<android::IMemory> const&, bool, int)'
collect2: ld returned 1 exit status
However, I found its definition in $(ANDROID_SRC)/frameworks/base/
media/libmedia/AudioTrack.cpp:
status_t AudioTrack::set(
int streamType,
uint32_t sampleRate,
int format,
int channels,
int frameCount,
uint32_t flags,
callback_t cbf,
void* user,
int notificationFrames,
const sp<IMemory>& sharedBuffer,
bool threadCanCallJava,
int sessionId)
{
...
}
and in the header that I included (media/audioTrack.h):
/* Initialize an uninitialized AudioTrack.
* Returned status (from utils/Errors.h) can be:
* - NO_ERROR: successful intialization
* - INVALID_OPERATION: AudioTrack is already intitialized
* - BAD_VALUE: invalid parameter (channels, format,
sampleRate...)
* - NO_INIT: audio server or audio hardware not initialized
* */
status_t set(int streamType =-1,
uint32_t sampleRate = 0,
int format = 0,
int channels = 0,
int frameCount = 0,
uint32_t flags = 0,
callback_t cbf = 0,
void* user = 0,
int notificationFrames = 0,
const sp<IMemory>& sharedBuffer = 0,
bool threadCanCallJava = false,
int sessionId = 0);
and I am using it this way:
status = track->set(AudioSystem::MUSIC,
audec->samplerate,
AudioSystem::PCM_16_BIT,
(audec->channels == 1) ?
AudioSystem::CHANNEL_OUT_MONO : AudioSystem::CHANNEL_OUT_STEREO,
0, // frameCount
0, // flags
audioCallback,
audec, // user when callback
0, // notificationFrames
0, // shared buffer
0);
So I am not able to see where am I wrong?
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