ffmpeg长时间运行总是报Circular buffer overrun. Surviving due to overr...

learn_ffmpeg

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ffmpeg -re -async 1 -i udp://230.0.0.108:20000?overrun_nonfatal=1&fifo_size=147483647&buffer_size=49999916 -c:a aac -b:a 128k -c:v hevc_nvenc -b:v 6M -deinterlace -g 30 -minrate 6M -maxrate 6M -tier high -preset llhq -rc ll_2pass_quality -f mpegts -async 1 -y udp://230.0.0.52:8000?pkt_size=1316&localaddr=192.168.172.110&overrun_nonfatal=1&fifo_size=147483646&ttl==64

错误信息

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[ac3 @ 0x31c1300] frame sync error
Error while decoding stream #0:1: Invalid data found when processing input
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 31 times
[ac3 @ 0x31c1300] exponent 27 is out-of-range
[ac3 @ 0x31c1300] error decoding the audio block
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 51 times
[ac3 @ 0x31c1300] frame sync error
Error while decoding stream #0:1: Invalid data found when processing input
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 54 times
[mpegts @ 0x2b5d800] PES packet size mismatch
frame=3174367 fps= 23 q=26.0 size=102662938kB time=38:52:19.16 bitrate=6009.9kbits/s dup=0 drop=15517 speed=   1x    
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 40 times
[mpegts @ 0x2b5d800] PES packet size mismatch
[ac3 @ 0x31c1300] exponent 26 is out-of-range
[ac3 @ 0x31c1300] error decoding the audio block
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 44 times
[ac3 @ 0x31c1300] frame sync error
Error while decoding stream #0:1: Invalid data found when processing input
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 135 times
[ac3 @ 0x31c1300] bandwidth code = 61 > 60
[ac3 @ 0x31c1300] error decoding the audio block
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 87 times
[mpegts @ 0x2b5d800] PES packet size mismatch
[ac3 @ 0x31c1300] frame sync error
Error while decoding stream #0:1: Invalid data found when processing input
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
frame=3174375 fps= 23 q=30.0 size=102663188kB time=38:52:19.72 bitrate=6009.9kbits/s dup=0 drop=15517 speed=   1x    
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 58 times
[ac3 @ 0x31c1300] exponent 25 is out-of-range
[ac3 @ 0x31c1300] error decoding the audio block
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 26 times
[ac3 @ 0x31c1300] frame sync error
Error while decoding stream #0:1: Invalid data found when processing input
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 58 times
[mpegts @ 0x2b5d800] PES packet size mismatch
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 37 times
[ac3 @ 0x31c1300] exponent -1 is out-of-range
[ac3 @ 0x31c1300] error decoding the audio block
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 26 times
[ac3 @ 0x31c1300] frame sync error
Error while decoding stream #0:1: Invalid data found when processing input
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 51 times
[mpegts @ 0x2b5d800] PES packet size mismatch
frame=3174382 fps= 23 q=33.0 size=102663363kB time=38:52:20.28 bitrate=6009.8kbits/s dup=0 drop=15517 speed=   1x    
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 71 times
[ac3 @ 0x31c1300] exponent -1 is out-of-range
[ac3 @ 0x31c1300] error decoding the audio block
[mpegts @ 0x2b5d800] PES packet size mismatch
[ac3 @ 0x31c1300] frame sync error
Error while decoding stream #0:1: Invalid data found when processing input
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 66 times
[ac3 @ 0x31c1300] exponent -1 is out-of-range
[ac3 @ 0x31c1300] error decoding the audio block
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option
    Last message repeated 49 times
[ac3 @ 0x31c1300] frame sync error
Error while decoding stream #0:1: Invalid data found when processing input
[udp @ 0x2b5dfc0] Circular buffer overrun. Surviving due to overrun_nonfatal option

一般这种情况是不是把overrun_nonfatal=1&fifo_size=147483646这两个设置了就OK，但是overrun_nonfatal参数设置完了之后，在缓冲区溢出的时候ffmpeg依然运行，但是画面已经花的不能看了，请大家帮帮忙  谢谢

learn_ffmpeg

已解决  是因为计算资源不足  编码太慢 导致从缓冲区中读取数据过慢进而导致缓冲区溢出了，减少一路就OK