* AVERROR(EINVAL): codec not opened, it is an encoder, or requires flush * AVERROR(ENOMEM): failed to add packet to internal queue, or similar * other errors: legitimate decoding errors */ int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt); 1. 2. 3. 4. 5. 6....
if(avformat_open_input(&formatContext,devicePath.c_str(),nullptr,&options)!=0){ std::cerr<<"Failed to open input"<<std::endl; return-1; } avformat_close_input(&formatContext); return0; } 请确保已经正确安装了FFmpeg库并进行编译链接。另外,请注意适配不同平台和设备的具体配置细节。 内容由...
消息Failed to avformat_open_input 'logo.png'可能表示ffmpeg找不到logo.png(或者可能无法正确解码它)。
LOGE("avformat_open_input() called failed: %s", av_err2str(ret)); }returnenv->NewStringUTF(hello.c_str()); } PS: 1.这里用到了avformat_open_input()函数,需要包含其对应的头文件:#include <libavformat/avformat.h>; 2.代码中还用到了av_err2str()这个函数,因此CMakeLists.txt中还需要包含它...
Failed to inject frame into filter network: No such file or directory Error while processing the decoded data for stream #0:0 Conversion failed! I just do not know how to fix it If you have already ideas how to solve the issue, add them here. Otherwise remove this section.Young...
LOGE("avformat_open_input() called failed: %s", av_err2str(ret)); } return env->NewStringUTF(hello.c_str()); } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. PS: ...
DEBUG org.bytedeco.javacpp.Loader - Loading /root/.javacpp/cache/ffmpeg-4.1.3-1.5.1-linux-x86_64.jar/org/bytedeco/ffmpeg/linux-x86_64/libavdevice.so.58 2021-01-22 22:49:57.944 [dssdemo-async-task-1] DEBUG org.bytedeco.javacpp.Loader - Failed to load /root/.javacpp/cache/ffmpeg-4.1.3...
LOGE("avformat_open_input() called failed: %s", av_err2str(ret));} return env->NewStringUTF(hello.c_str());} PS:1.这⾥⽤到了avformat_open_input()函数,需要包含其对应的头⽂件: #include <libavformat/avformat.h> ;2.代码中还⽤到了 av_err2str() 这个函数,因此CMakeLists.txt...
用ffmpeg来处理USB摄像头,是前段时间研究视频监控ffmpeg内核的时候搞定的,既然ffmpeg这么牛逼的库可以解析...
= 0) { std::cerr << "Failed to open input" << std::endl; return -1; } // 在这里可以进行其他处理,如读取帧、解码等 avformat_close_input(&formatContext); // 关闭输入数据源 return 0; } 可能遇到的问题及解决方法 找不到设备文件: ...