真正的fft错误 - ffmpeg(Real fft error - ffmpeg)
我正在尝试将ffmpegs fft实用程序用于称为real fft（rdft）的音频样本。
但我有SIGSEGV错误。 代码很简单。
static void fft(float* data){ RDFTContext * ctx = av_rdft_init(Globals::WindowSizePower, DFT_R2C) av_rdft_calc(ctx, data); av_rdft_end(ctx); av_free(ctx); }定义的常量是
static const int WindowSize = 1024; static const int WindowSizePower = 10;有人能告诉我我做错了什么吗？ 我试图在互联网上找到使用这个ffmpeg实用程序的例子，但我没找到任何。
编辑：
这是调用此功能的功能
void fftInit(float* correction){ m_fft_data = new float[Globals::WindowSize](); memcpy(m_fft_data, correction, sizeof(float)*Globals::WindowSize); for(int i = 0; i < Globals::WindowSize; ++i){ m_fft_data[i] *= m_data[i]; } FFMPEGFFT::fft(m_fft_data); }输入数据已正确分配。 在进入这一部分之前，我测试了提取的数据。
I am trying to use ffmpegs fft utility for audio samples called real fft(rdft).
But I have SIGSEGV error. Code is very simple.
static void fft(float* data){ RDFTContext * ctx = av_rdft_init(Globals::WindowSizePower, DFT_R2C) av_rdft_calc(ctx, data); av_rdft_end(ctx); av_free(ctx); }Defined constants are
static const int WindowSize = 1024; static const int WindowSizePower = 10;Can someone tell me what I am doing wrong? I tried to find example on internet where this ffmpeg utility is used but I didnt find any.
EDIT:
This is function which call this function
void fftInit(float* correction){ m_fft_data = new float[Globals::WindowSize](); memcpy(m_fft_data, correction, sizeof(float)*Globals::WindowSize); for(int i = 0; i < Globals::WindowSize; ++i){ m_fft_data[i] *= m_data[i]; } FFMPEGFFT::fft(m_fft_data); }Input data is properly allocated. I tested extracted data before coming to this part.
原文：https://stackoverflow.com/questions/37950866
更新时间：2024-02-11 06:02
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