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  • Video Concatnation using javacv

    14 novembre 2013, par bindal

    I have integrated this Javacv for concatenating 2 videos this code works find when i was using 2 videos recorded from rear camera,but when i record 1 video with front cameara and another with rear camera then another half video is rotated upside down
    Is there any specific settings while recording from front camera,

    I have used this library from github
    https://github.com/sourab-sharma/TouchToRecord

    Here is the recording file
    Video Recording

    Please give me some solution on this

    Thanks

  • FFMPEG Invalid value '1' for option 'loop'

    4 novembre 2013, par helloworld

    I am trying to run this code (It did work on my previously server, but now i keep getting this annoying error) :

    ffmpeg -loop 1 -r 25 -t 322 -i /home/kampmann/public_html/m/xxx/movie_10262.jpg -q:v 1 -an /home/kampmann/public_html/m/xxxs/573240.mp4 2>&1

    Error :
    Invalid value '1' for option 'loop'

    Here is my output.

    FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
    
built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6)
    
configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
    
 libavutil     50.15. 1 / 50.15. 1
    
 libavcodec    52.72. 2 / 52.72. 2
    
    libavformat   52.64. 2 / 52.64. 2
    
 libavdevice   52. 2. 0 / 52. 2. 0
    
 libavfilter    1.19. 0 /  1.19. 0
    
 libswscale     0.11. 0 /  0.11. 0
    
 libpostproc   51. 2. 0 / 51. 2. 0
    

    

    
Invalid value '1' for option 'loop'

  • Unable to link with libx264.lib static library

    3 novembre 2013, par dtumaykin

    I’m building custom video encoder using x264 as a static library. I’ve followed this guide in order to build static library. Trying to compile this :

    x264_t * setup_encoder(int width, int height){
    
    x264_param_t param;
    
    x264_param_default_preset(&param, "veryfast", "zerolatency");
    
    param.i_threads = 1;
    
    param.i_width = width;
    
    param.i_height = height;
    
    param.i_fps_num = 26;
    
    param.i_fps_den = 1;
    
    // Intra refres:
    
    param.i_keyint_max = 26;
    
    param.b_intra_refresh = 1;
    
    //Rate control:
    
    param.rc.i_rc_method = X264_RC_CRF;
    
    param.rc.f_rf_constant = 25;
    
    param.rc.f_rf_constant = 25;
    
    param.rc.f_rf_constant_max = 35;
    
    //For streaming:
    
    param.b_repeat_headers = 1;
    
    param.b_annexb = 1;
    
    x264_param_apply_profile(&param, "baseline");
    

    
    return x264_encoder_open(&param);
    
}

    Results in :

    main.obj : error LNK2019 : unresolved external symbol "int __cdecl x264_param_default_preset(struct x264_param_t *,char const *,char const *)"

    main.obj : error LNK2019 : unresolved external symbol "int __cdecl x264_param_apply_profile(struct x264_param_t *,char const *)"

    main.obj : error LNK2019 : unresolved external symbol "struct x264_t * __cdecl x264_encoder_open_136(struct x264_param_t *)"

    %PROJECT_DIR% : fatal error LNK1120 : 3 unresolved externals

    Linker scans libx264.lib, but can’t find anything inside.

    Searching .\lib\libx264.lib:

    With dumpbin /HEADERS I can actually find the declaration I need, but linker is unable to do it.

    SECTION HEADER #38
    
   .text name
    
       0 physical address
    
       0 virtual address
    
     E60 size of raw data
    
    930C file pointer to raw data (0000930C to 0000A16B)
    
    D219 file pointer to relocation table
    
       0 file pointer to line numbers
    
      40 number of relocations
    
       0 number of line numbers
    
60501020 flags
    
         Code
    
         COMDAT; sym= x264_param_default_preset
    
         16 byte align
    
         Execute Read

    Enviroment is Visual Studio 2012 with Intel Compiler 14 on Windows 8 64-bit.

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