Libav Av_Audio_Resample_Init | Audio-Digital.net

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libav: Visualize audio in a spectrum using libavcodec ...

https://maxammann.org/posts/2015/06/fft-audio-visualisation/

The first step is to initialise the FFT library of libav. N is the size of the fft. 1 void visualize_init ( int samples_) { 2 samples = samples_; 3 N = samples_ / 2 ; // left/right channels 4 ctx = av_rdft_init(( int ) log2(N), DFT_R2C); 5 }

c++ - Resampling audio with FFMPEG LibAV - Stack …

https://stackoverflow.com/questions/63991037/resampling-audio-with-ffmpeg-libav

Well, since FFMPEG documentation and code examples are absolute garbage, I guess my only choise is to go here and aks. So what I'm trying to do is simply record audio from microphione and write it to the file.

Example how to visualize libav output in a spectrum · GitHub

https://gist.github.com/maxammann/137176f1dcd0e4f596e8

int audio_stream_index = open_file (file_path, &fmt_ctx, &dec_ctx); if (audio_stream_index < 0) {av_log (NULL, AV_LOG_ERROR, " Error opening file \n "); return audio_stream_index;} // Setup resampling: enum AVSampleFormat output_fmt = init_resampling (&resample, dec_ctx); visualize_init (4096 / sizeof (int16_t)); // 4096 is the default sample size of libav: while (1)

libav: heap-based buffer overflow in ff_audio_resample ...

https://blogs.gentoo.org/ago/2016/08/07/libav-heap-based-buffer-overflow-in-ff_audio_resample-resample-c/

libav: heap-based buffer overflow in ff_audio_resample (resample.c) Posted on August 7, 2016 by ago. Description: Libav is an open source set of tools for audio and video processing. A crafted file can cause an overflow in the heap. This bug was discovered the last year, but I didn’t have time to do anything else.

FFmpeg: libavcodec/resample.c Source File

https://www.ffmpeg.org/doxygen/0.6/resample_8c-source.html

Generated on Fri Oct 26 02:36:45 2012 for FFmpeg by 1.5.8 1.5.8

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