[libav-user] unable to read x264 packets from mp4 file

[hoelschi]

hi all,
 i'am unable to read x264 packets from mp4 file. Audio packets could read
successfull but no video Packets.

All Video Packets have a size at round about 2kb but the data pointer have
only a \0 value data, can someone have a look at my code please.

Thanks Jan

int main(int argc, char ** argv){
    av_register_all();
    if(argc==1){
        return 0;
    }
    AVFormatContext * formatCtx= av_alloc_format_context();
    AVInputFormat *file_iformat = av_find_input_format("mp4");
    AVFormatParameters params, *ap = &params;
    memset(ap, 0, sizeof(*ap));
    ap->prealloced_context = 1;

    char * filename=argv[1];
    if (av_open_input_file(&formatCtx, filename, file_iformat, 0, ap) != 0)
{
        std::cout<<"could not open file" << filename <<std::endl;
        return 0;
    }
    if (av_find_stream_info(formatCtx) < 0) {
        std::cout<<"could not read stream info " << filename <<std::endl;
        return 0;
    }
    while(true){
        AVPacket pkt;
        int ret= av_read_frame(formatCtx, &pkt);
    }

}
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