severe memory leak libyami_h264

[nulijiabei]

1. pFormatCtx = avformat_alloc_context();
2. avformat_open_input(&pFormatCtx
3. avformat_find_stream_info(pFormatCtx
4. avcodec_find_decoder_by_name("libyami_h264");
5. ...

The memory will not be recycled after it is released

    av_packet_free(&avpkt); 
    av_frame_free(&vFrame);
    av_frame_free(&aFrame);
    avcodec_close(vCodecCtx);
    avcodec_close(aCodecCtx);
    avformat_close_input(&pFormatCtx);

run inside a thread

No such memory leak will occur with soft solution

[nulijiabei]

@mypopydev 结束解码，释放解码器后，buff/cache 所占用的内存不会被释放 ...