c++ - Set the file size limit using the FFMPEG API

Question

My task, when encoding raw audio data, is to limit the recording when the set maximum file size is reached. To determine the current duration of an audio file, I use data from packet:

// Calculating the current value of the time duration of the media file.
packet.duration = av_rescale_q(packet.duration, p_iStream->time_base, p_oStream->time_base);
m_duration     += packet.duration;

But when calculating the file size in this way, it does not work:

// Calculating the current value of the media file size.  
m_fileSize += packet.buf->size;

How do I determine the file size in real time? I can't use other classes to work with the file. This file is already opened by ffmpeg, and it cannot be opened from the outside.

question from:https://stackoverflow.com/questions/65918834/set-the-file-size-limit-using-the-ffmpeg-api

Answer 1

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