[FFmpeg-devel] picture size invalid calling avformat_alloc_context();

Stuart Smith stuartmartinsmith
Sat Sep 12 21:40:10 CEST 2009

Hi, have just updated my local SVN working copy and now I get 'picture size
invalid (268524928x3435973836) when calling avformat_alloc_contex() and I
get an 'access violation'.


This used to work under VS2008 using shared libraries built under Mingw so
I'm not too sure what I have done wrong.


The code is as follows (copied from ffmpeg.c):




    for(i=0; i<CODEC_TYPE_NB; i++){

        avcodec_opts[i]= avcodec_alloc_context2((CodecType)i);


    avformat_opts = avformat_alloc_context();

    sws_opts = sws_getContext(16, 16, (PixelFormat)0, 16, 16,
(PixelFormat)0, sws_flags, NULL,NULL,NULL);


Any advice much appreciated.





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