githubzjy/audiovisualizeview

🎵🎵🎵 许多音乐App上常见的音频可视化效果，读取音频数据并利用傅里叶转换成可视化的字节数据，再通过自定义View渲染而成。An audio visualization effect like many music app, read audio data and use Fourier transform to visual byte data, and then through custom view rendering.

audiovisualizeview's Issues

請教 `VisualizerHelper` 的 `onFftDataCapture` 程式碼片段

你好 因為近期也在研究這塊，網路上爬了很多資料

想請教在 VisualizerHelper 的 onFftDataCapture 程式碼片段裡

為什麼只需要計算 mCount*2 的 magnitude 呢？

若 mCount*2 小於 fft.length / 2，那麼 mCount*2+1~fft.length/2 的資料就直接捨棄了嗎？

for (int i = 2; i < mCount *2;) {
    model[j] = (float) Math.hypot(fft[i], fft[i + 1]);
    i += 2;
    j++;
    model[j] = Math.abs(model[j]);
}

先說聲謝謝！這個 repo 幫助了我很多！

model[j] = (float) Math.abs(fft[j]);

// 这是在干啥？
model[j] = (float) Math.abs(fft[j]);

您好，请问怎么设置说话的时候 让音频波动呢

播放完成后内存溢出闪退

播放完成后内存溢出闪退

2021-04-20 15:45:40.219 31976-743/com.xing.newtv W/Adreno-GSL: <sharedmem_gpuobj_alloc:2736>: sharedmem_gpumem_alloc: mmap failed errno 12 Out of memory
2021-04-20 15:45:40.220 31976-743/com.xing.newtv E/Adreno-GSL: <gsl_memory_alloc_pure:2604>: GSL MEM ERROR: kgsl_sharedmem_alloc ioctl failed.
2021-04-20 15:45:40.220 31976-743/com.xing.newtv W/Adreno-GSL: <sharedmem_gpuobj_alloc:2736>: sharedmem_gpumem_alloc: mmap failed errno 12 Out of memory
2021-04-20 15:45:40.220 31976-743/com.xing.newtv E/Adreno-GSL: <gsl_memory_alloc_pure:2604>: GSL MEM ERROR: kgsl_sharedmem_alloc ioctl failed.
2021-04-20 15:45:40.220 31976-743/com.xing.newtv W/Adreno-GSL: <sharedmem_gpuobj_alloc:2736>: sharedmem_gpumem_alloc: mmap failed errno 12 Out of memory
2021-04-20 15:45:40.220 31976-743/com.xing.newtv E/Adreno-GSL: <gsl_memory_alloc_pure:2604>: GSL MEM ERROR: kgsl_sharedmem_alloc ioctl failed.
2021-04-20 15:45:40.220 31976-743/com.xing.newtv W/Adreno-GSL: <sharedmem_gpuobj_alloc:2736>: sharedmem_gpumem_alloc: mmap failed errno 12 Out of memory
2021-04-20 15:45:40.220 31976-743/com.xing.newtv E/Adreno-GSL: <gsl_memory_alloc_pure:2604>: GSL MEM ERROR: kgsl_sharedmem_alloc ioctl failed.
2021-04-20 15:45:40.220 31976-743/com.xing.newtv W/Adreno-GSL: <sharedmem_gpuobj_alloc:2736>: sharedmem_gpumem_alloc: mmap failed errno 12 Out of memory
2021-04-20 15:45:40.220 31976-743/com.xing.newtv E/Adreno-GSL: <gsl_memory_alloc_pure:2604>: GSL MEM ERROR: kgsl_sharedmem_alloc ioctl failed.
2021-04-20 15:45:40.220 31976-743/com.xing.newtv E/OpenGLRenderer: GL error: Out of memory!
2021-04-20 15:45:40.221 31976-743/com.xing.newtv A/OpenGLRenderer: GL errors! frameworks/base/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp:127
2021-04-20 15:45:40.225 31976-743/com.xing.newtv W/libc: malloc(532480) failed: returning null pointer
2021-04-20 15:45:40.225 31976-743/com.xing.newtv E/libc++abi: terminating with uncaught exception of type St9bad_alloc: std::bad_alloc
2021-04-20 15:45:40.225 31976-743/com.xing.newtv A/libc: Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 743 (RenderThread), pid 31976 (com.xing.newtv)