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• is there any way to change still images to video in php on windows plate form [on hold]

  13 juin 2014, par user3548569

  I have a scenario for creating a video files using different images.

  What can I do is, basically I have images and I want create a video file using PHP.

  Can any one please suggest the start up point for this ? Have done image capture from video and converting the video using Ffmpeg so I have think of Ffmpeg but, I think it will not allow to create a video.

  i need to develop a movie with more then 5 pic. If i added images , then php convert it to movies or video. is there any toll to convert images to video in php on windows ???
  thanks

• omxplayer AVPacket

  6 février 2013, par Oleksandr Kyrpa

  Hi Im trying decode video usin OpenMax component and hello_video example from GitHub.
  I simply edit video.c and replace "main frame while" on AVFormat -read frame packet for read not only *.h264 files . (I need read mp4, mov, mkv....)..
  So with test.h264 files and other files that I generate with ffmpeg, all works fine and on screen I can see movie.

  ffmpeg -i file.mp4 -vcodec copy -vbsf h264_mp4toannexb out.h264

  But if I open test.mp4 file I can't see pictures on the screen, and log in console show me that data read correctly and parsed to the input buffer of the video decoder correctly.
  Can any explain me why I can't see anything on the screen on second test ?

      do{
  
      printf("###before DO!\n");
  
  status=av_read_frame(pFormatCtx,&packet);
  
  //only for video
  
  if(packet.stream_index==*video_stream_index){
  
  printf("=>Read frame, status: %d, index: %d, stream index: %d, packet duration: %d, size: %d\n",pstatus,index++,packet.stream_index,packet.duration,packet.size);
  
  int psize=packet.size;
  
  int preaded=0;
  
  double pts=packet.duration;
  
  while(psize!=0){
  
       buf = ilclient_get_input_buffer(video_decode, 130, 1);
  
        buf->nFlags = 0;
  
        buf->nOffset = 0;
  
        uint64_t val = (uint64_t)(pts == DVD_NOPTS_VALUE) ? 0 : pts;
  
       if(first_frame==true){buf->nFlags = OMX_BUFFERFLAG_STARTTIME;first_frame=false;}else{buf->nFlags = OMX_BUFFERFLAG_TIME_UNKNOWN;}
  
  buf->nTimeStamp = ToOMXTime(val);
  
  buf->nFilledLen = (psize > buf->nAllocLen) ? buf->nAllocLen : psize;
  
  memcpy(buf->pBuffer, packet.data+preaded,buf->nFilledLen);
  
  psize-=buf->nFilledLen;
  
  preaded+=buf->nFilledLen;
  
       if(psize == 0){buf->nFlags|=OMX_BUFFERFLAG_ENDOFFRAME;printf("#######################################OMX_BUFFERFLAG_ENDOFFRAME\n");}
  
  printf("=>BUFF size: %d\n",buf->nFilledLen);
  
  OMX_ERRORTYPE r;
  
  if(pstatus==0){if(r=OMX_EmptyThisBuffer(ILC_GET_HANDLE(video_decode), buf) != OMX_ErrorNone){status = -6;printf("Failed, OMX_EmptyThisBuffer, error: 0x%08x , buf allocate: %d, buf lenght: %d \n", r,buf->nAllocLen,buf->nFilledLen);break;}}
  
  }//while psize
  
  av_free_packet(&packet);
  
     }//if index  
  
  }//do
  
  while(pstatus==0);

• Generating thumbnails from multiple videos on Desktop, using ffmpeg, or something similar

  6 février 2013, par Birk

  Hi guys this is a long shot but here goes...

  I basically have what I mentioned in the title running on my server. When I upload a video ffmpeg decomplies it and gives me screenshots, then I pick a screenshot that I want to use for that video. Currently, my server can process 3 videos at a time. The down side is that this uses up A LOT of the server processing power. :(

  Is there a way, or a program, that can process several video at a time and generate me screenshots on my Desktop ? If this is possible then I can just use my spare computer here to process everything then upload the screenshots/video to my server.

  This is what I basically have running now on the server. kayweb.com.au/blogs/Web-Development/Generating-screenshots-using-FFmpeg

  Something like this, But this thumbnail generator puts everything into one image. I need to be able to choose with thumbnail I want to use.
  http://www.tothepc.com/archives/make-movie-caps-screenshots-with-free-video-thumbnails-maker/

  Anyone have any suggestions ?