Le decadi 20 nivôse, an CCXX, [email protected] a écrit : > I compiled last release of ffmpeg with all codecs enabled. So I linked the > libraries to my project and opened a simple image composed with a single > field. > The av_open_input_file, and av_find_stream_info(pFormatCtx) works correctly, > that is info contained into pFormatCtx are correct (video stream is a MPEG2 > one).The problem arises when I attempt to detect codec. Here is the code: > > videoStream=-1; > for(i=0; i<pFormatCtx->nb_streams; i++) > if(pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO) { > videoStream=i; break; > } > > if(videoStream==-1) {Memo1->Lines->Add("Unable to detect stream type"); > goto end_conv;}
Note that you can use av_find_best_stream for that. > // Get a pointer to the codec context for the video stream > pCodecCtx=pFormatCtx->streams[videoStream]->codec; > > // Find the decoder for the video stream > pCodec=avcodec_find_decoder(pCodecCtx->codec_id); > > The pCodec is always null. Did anyone have an idea ? Did you forge to call some of the register_all? If not, trim your program until remains only the bare minimum to show the problem; do not hesitate to hardcode filenames or even codec ids. The result should probably be less than 20 lines. Then post it here as a whole. Regards, -- Nicolas George _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
