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• Android, Splitting GIFs with FFMPEG doesnt work

  19 mars 2019, par raddeee

  I wanted to split animated gif files using FFmpeg-Android-Java, so I referenced this question Android, split gif to frames with ffmpeg
  and wrote this code.

  String path = "/storage/emulated/0/Download/mothersday-toaster.gif";
  
          String cmd[] = {"-i",path,"-vsync","0","/storage/emulated/0/Download/output$03d.png"};
  
  
  
          try {
  
              // to execute "ffmpeg -version" command you just need to pass "-version"
  
              ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
  
  
  
                  @Override
  
                  public void onStart() {}
  
  
  
                  @Override
  
                  public void onProgress(String message) {}
  
  
  
                  @Override
  
                  public void onFailure(String message) {Log.d("Q", "failed to convert");}
  
  
  
                  @Override
  
                  public void onSuccess(String message) {}
  
  
  
                  @Override
  
                  public void onFinish() {}
  
              });
  
          } catch (FFmpegCommandAlreadyRunningException e) {
  
              // Handle if FFmpeg is already running
  
          }

  Although, It always gives me the "failed to convert" log. FFMPEG is already loaded. Is there something wrong with my code ?

• FFMPEG - subtitles not showing for the full duration of video

  26 juin 2023, par Caio Maia

  I could not archive the following :

  


  

  1. Have images loaded from a textfile to create a slideshow.

  


  2. Have a background music with volume control.

  


  3. Have my voice.mp3 over the bg music.

  


  4. Have subtitles in the ass format.

  


  5. Have a text shown with drawtext in the full duration of video.

  


  6. in only one command, if possible.

  


  


  The command I tryed is :

  


  ffmpeg.exe -f concat -i images.txt -i bg_music.m4a -i voice.mp3 -filter_complex "[0:v]drawtext=fontfile='fonte.TTF':fontsize=20:fontcolor=white:text='Imagens da internet':x=w-tw-10:y=h-th-10,[0]overlay=10:10,ass=subtitles.txt[out],[1]volume=0.3[a1];[2]volume=2[a2];[a1][a2]amix=inputs=2:duration=shortest[aud]" -map "[out]" -map "[aud]":a -pix_fmt yuv420p -c:v libx264 -c:s mov_text -r 30 -y out.mp4


  


  It works but not for subtitles that are showing only after the first image of th slideshow appears.

  


  the content of images.txt is :

  


  file 'image1.png'
duration 20
file 'image2.png'
duration 5
file 'image3.png'
duration 5


  


  the content of subtitles.txt is

  


  Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:01.00,0:00:06.00,Default,,0,0,0,,Subscribe!
Dialogue: 0,0:00:07.00,0:00:16.00,Default2,,0,0,0,,Like!
Dialogue: 0,0:00:17.00,0:00:26.00,Default,,0,0,0,,Share!


  


  The problem is that only the "Share !" text is shown.

  


• avcodec/hq_hqadata : Avoid relocations

  9 avril, par Andreas Rheinhardt

  avcodec/hq_hqadata : Avoid relocations
  Initialize a list of 128 pointers at decoder init
  
  instead of using a const list of pointers (which
  
  will be initialized at runtime when libavcodec
  
  is loaded when using pic code with Elf) ; the former
  
  takes only 128 bytes (+ a bit of initialization code),
  
  the latter 1KiB on 64 bit systems (+3KiB on x64 elf
  
  for relocation information).
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/hq_hqa.c
  • [DH] libavcodec/hq_hqadata.h