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  • Add 2 pictures to video with durations ? [duplicate]

    24 juin 2013, par jesper

    This question already has an answer here :

    I am trying to add 2 different images into a video with ffmpeg.

    image1.jpg should show the first 10 seconds of the movie and youtubeLOL.png should show the next 6 minutes of the video.

    So the command should tell us also to repeat the pictures to get a length for 6 minutes and 10 seconds. How can i do this ? I have tried this :

    (It's not even working)

    passthru("ffmpeg -f image2 -loop 1 -vframes 100 -i /home/psafari/public_html/youtube_images/movie_" . $id . ".jpg -vcodec mpeg4 /home/psafari/public_html/youtube_videos/movie_" . time().".avi");

    Here is 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'

    output memcode

    MEncoder SVN-r31628-4.4.6 (C) 2000-2010 MPlayer Team
    get_path("config") problem
    success: format: 0  data: 0x0 - 0x1251b
    libavformat file format detected.
    [lavf] stream 0: video (h264), -vid 0
    VIDEO:  [H264]  540x800  24bpp  25.000 fps  116.3 kbps (14.2 kbyte/s)
    [V] filefmt:44  fourcc:0x34363248  size:540x800  fps:25.000  ftime:=0.0400
    videocodec: framecopy (540x800 24bpp fourcc=34363248)
    Writing header...
    ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
    Writing header...
    ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
    Pos:   0.0s      1f (100%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
    Pos:   0.1s      2f (100%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
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    Pos:   0.2s      4f (100%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
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    Pos:   5.0s    125f (100%)  0.00fps Trem:   0min   0mb  A-V:0.000 [116:0]
    success: format: 0  data: 0x0 - 0x9daf8
    libavformat file format detected.
    [lavf] stream 0: video (h264), -vid 0
    VIDEO:  [H264]  640x400  24bpp  25.000 fps   21.8 kbps ( 2.7 kbyte/s)
    [V] filefmt:44  fourcc:0x34363248  size:640x400  fps:25.000  ftime:=0.0400
    videocodec: framecopy (540x800 24bpp fourcc=34363248)
    videocodec: framecopy (640x400 24bpp fourcc=34363248)

    All video files must have identical fps, resolution, and codec for -ovc copy.

    Exiting...
  • FFMPEG Green Screen from raw pictures

    21 août 2016, par Mohammad Abu Musa

    I am writing a screen recorder, I get raw data from Chrome and I want to covert it to webm files. I manged successfully to export the videos with the correct periods but the issue that I get a green screen instead of the screen capture. I am not sure what could be wrong.

    Is it writing to file ? or passing the parameters to fwrite function ?

    void EncoderInstance::OnGetFrame(int32_t result, pp::VideoFrame frame) {
       if (result != PP_OK)
           return;

       const uint8_t* data = static_cast<const>(frame.GetDataBuffer());
       pp::Size size;
       frame.GetSize(&amp;size);
       uint32_t buffersize = frame.GetDataBufferSize();


       if (is_recording_) {
           vpx_codec_iter_t iter = NULL;
           const vpx_codec_cx_pkt_t *pkt;
           // copy the pixels into our "raw input" container.
           int bytes_filled = avpicture_fill(&amp;pic_raw, data, AV_PIX_FMT_YUV420P, out_width, out_height);
           if(!bytes_filled) {
               Logger::Log("Cannot fill the raw input buffer");
               return;
           }

           if(vpx_codec_encode(&amp;codec, &amp;raw, frame_cnt, 1, flags, VPX_DL_REALTIME))
                 die_codec(&amp;codec, "Failed to encode frame");

           while( (pkt = vpx_codec_get_cx_data(&amp;codec, &amp;iter)) ) {
               switch(pkt->kind) {
                   case VPX_CODEC_CX_FRAME_PKT:
                       glb_app_thread.message_loop().PostWork(callback_factory_.NewCallback(&amp;EncoderInstance::write_ivf_frame_header, pkt));
                       glb_app_thread.message_loop().PostWork(callback_factory_.NewCallback(&amp;EncoderInstance::WriteFile, pkt));
                       break;
                   default:break;
               }
           }

           frame_cnt++;
       }

       video_track_.RecycleFrame(frame);
       if (need_config_) {
           ConfigureTrack();
           need_config_ = false;
       } else {
           video_track_.GetFrame(
                   callback_factory_.NewCallbackWithOutput(
                           &amp;EncoderInstance::OnGetFrame));
       }
    }
    </const>
  • Révision 23647 : Nouveau logo pour la 3.2

    10 juillet 2017, par nicolas.dorigny@gmail.com