Issue when compiling the source

[mohamedabc]

I get this error when compiling the source as per your INTALL instruction

videoencoder.cpp:216:85: error: ‘av_packet_rescale_ts’ was not declared in this scope
             av_packet_rescale_ts(&pkt, pCodecCtx->time_base, pVideoStream->time_base);
                                                                                     ^
videoencoder.cpp: In member function ‘bool VideoEncoder::initFrame()’:
videoencoder.cpp:300:31: error: ‘av_frame_alloc’ was not declared in this scope
     ppicture = av_frame_alloc();
                               ^
make: *** [videoencoder.o] Error 1

[econsysqtcam]

Following api are dependent on the below libraries,
av_frame_alloc() requires libavutil.so.54
av_packet_rescale_ts() requires libavcodec.so.56
Your PC is having lower version of libav packages. So only the issue raises.

Please install these library(libav) by following INSTALL document