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pzhlkj6612 avatar pzhlkj6612 commented on June 23, 2024

在 Ubuntu 和 macOS 上复现本问题的简便方法:

AVPacket avpkt;
av_packet_unref(&avpkt);

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pzhlkj6612 avatar pzhlkj6612 commented on June 23, 2024

找源码:

  1. 源头:void av_packet_unref(AVPacket *pkt)

https://github.com/FFmpeg/FFmpeg/blob/n4.2.2/libavcodec/avpacket.c#L599-L606

  1. 调用void av_packet_free_side_data(AVPacket *pkt)

https://github.com/FFmpeg/FFmpeg/blob/n4.2.2/libavcodec/avpacket.c#L270-L277

  1. 调用void av_buffer_unref(AVBufferRef **buf)static void buffer_replace(AVBufferRef **dst, AVBufferRef **src)

https://github.com/FFmpeg/FFmpeg/blob/n4.2.2/libavutil/buffer.c#L107-L131

  1. 调用av_freep

https://github.com/FFmpeg/FFmpeg/blob/n4.2.2/libavutil/mem.c#L218-L234


暂时没有去找出究竟是哪一个av_freep调用引发了异常。

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