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• How to combine pictures with an audio into a video by ffmpeg ? [duplicate]

  3 septembre 2019, par Saeron Meng

  This question already has an answer here :

  • Using FFmpeg to join images with different timly distance
    
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  • How do I render a video from a list of time-stamped images ?
    
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  • ffmepg video from uneven sequence of png images
    
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  • How to successfully use ffmpeg to convert images into videos
    
    1 answer
    

  I recorded my voice for a powerpoint (or a bunch of pictures). Now I have all materials and a list of starttimes and endtimes of each picture, but I don’t know how I should use the command line to apply ffmpeg so as to combine those to a video.

  I have searched on the Internet, some of the websites tell me to create a txt file containing the starttime and endtime of each picture and use the concat option of ffmpeg. But I don’t know how to write the txt and achieve it.

  Previously, I have an xml file containing starttimes and endtimes, to indicate my pictures :

  <page title="1" height="540" width="960" starttimestamp="794.852" speedup="true" step="65535" stoptimestamp="1008.887" loc="hls/128345566_0.png"></page>
  
  <page title="2" height="540" width="960" starttimestamp="1008.887" speedup="false" step="0" stoptimestamp="1078.888" loc="hls/128345566_1.png"></page>
  
  <page title="3" height="540" width="960" starttimestamp="1078.888" speedup="false" step="0" stoptimestamp="1081.206" loc="hls/128345566_2.png"></page>

  How to write the concat list and apply ffmpeg ? (just format will be okay)

• lavu : make sure av_pix_fmt_desc_next returns a valid pix fmt.

  15 décembre 2012, par Clément Bœsch

  lavu : make sure av_pix_fmt_desc_next returns a valid pix fmt.

• af_resample : unref out_buf when avresample_convert returns 0

  9 octobre 2012, par Janne Grunau

  af_resample : unref out_buf when avresample_convert returns 0