ffmpeg av_read_frame() need very long time to stop

Question

I use ffmpeg to decode RTSP video.It likes that: When it\'s on the end of file,it block in the av_read_frame() for a long time,why?

Answer 1

This problem come because av_read_frame() stuck in network infinite loop I got the same problem then I have used interrupt call back please refer the sample code

First initialize your context and set interrupt call back

AVFormatContext *_formatCtx;

//Initialize format context
_formatCtx=avformat_alloc_context();

//Initialize intrrupt callback
AVIOInterruptCB icb={interruptCallBack,(__bridge void *)(self)};
_formatCtx->interrupt_callback=icb;

now handle the interrupt in your callback

int interruptCallBack(void *ctx){

   //once your preferred time is out you can return 1 and exit from the loop
   if(timeout){
      //exit
      return 1;
    }

   //continue 
   return 0;

}