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• ffmpeg multiple pipes with different filters and outputs

  3 janvier 2024, par diegoddox

  I'm trying to pipe multiple outputs to an s3 but so far it's only working if I tried with only one pipe as soon as I add more I get Could not write header (incorrect codec parameters ?): Broken pipe error.

  


  aws s3 cp s3://bucket-name/original.mp4 - | \
  ffmpeg -f mp4 -i pipe:0 \
  -vf "scale=1280x720:flags=lanczos" -c:a aac -b:a 96k -movflags frag_keyframe+empty_moov -f mp4 pipe:1 | aws s3 cp - s3://bucket-name/720.mp4 --region my-region \
  -vf "scale=854x480:flags=lanczos" -c:a aac -b:a 96k -movflags frag_keyframe+empty_moov -f mp4 pipe:2 | aws s3 cp - s3://bucket-name/480.mp4 --region my-region \
  -vf "scale=640x360:flags=lanczos" -c:a aac -b:a 96k -movflags frag_keyframe+empty_moov -f mp4 pipe:3 | aws s3 cp - s3://bucket-name/360.mp4 --region my-region \
  -ss 00:00:00 -t 3 -vf "fps=10,scale=720:-1" -movflags frag_keyframe+empty_moov -f gif pipe:4 | aws s3 cp - s3://bucket-name/thumbnail.gif --region my-region


  


  Thanks in advance

  


• Equalizers, bassboost and reverb effect not working (using FFmpegMediaPlayer)

  9 février 2018, par Arren

  I’m currently using FFmpegMediaPlayer from github and the effects are not working in the phone but works perfectly in the emulator which of both are the same API 22.

  The strange thing is that when I switch the code from FFmpegMediaplayer to standard android media player the effects start working again in the real phone device. But when I switch back to ffpmeg the effect only works in the emulator and not in the real device. My code is as below,

   public void setupVisualizerFxAndUI() {
  
  
  
      try {
  
          mVisualizer = new Visualizer(mMediaPlayer.getAudioSessionId());
  
          mEqualizer = new Equalizer(0, mMediaPlayer.getAudioSessionId());
  
          mEqualizer.setEnabled(true);
  
  
  
          try {
  
              bassBoost = new BassBoost(0, mMediaPlayer.getAudioSessionId());
  
              bassBoost.setEnabled(false);
  
              BassBoost.Settings bassBoostSettingTemp = bassBoost.getProperties();
  
              BassBoost.Settings bassBoostSetting = new BassBoost.Settings(bassBoostSettingTemp.toString());
  
              bassBoostSetting.strength = (1000 / 19);
  
              bassBoost.setProperties(bassBoostSetting);
  
              mMediaPlayer.setAuxEffectSendLevel(1.0f);
  
  
  
              presetReverb = new PresetReverb(0, mMediaPlayer.getAudioSessionId());
  
              presetReverb.setPreset(PresetReverb.PRESET_NONE);
  
              presetReverb.setEnabled(false);
  
              mMediaPlayer.setAuxEffectSendLevel(1.0f);
  
          } catch (Exception e) {
  
              e.printStackTrace();
  
          }
  
  
  
      } catch (Exception e) {
  
          e.printStackTrace();
  
      }
  
  
  
      if (homeActivity.isEqualizerEnabled) {
  
          try {
  
              bassBoost.setEnabled(true);
  
              BassBoost.Settings bassBoostSettingTemp = bassBoost.getProperties();
  
              BassBoost.Settings bassBoostSetting = new BassBoost.Settings(bassBoostSettingTemp.toString());
  
              if (homeActivity.bassStrength == -1) {
  
                  bassBoostSetting.strength = (1000 / 19);
  
              } else {
  
                  bassBoostSetting.strength = homeActivity.bassStrength;
  
              }
  
              bassBoost.setProperties(bassBoostSetting);
  
              mMediaPlayer.setAuxEffectSendLevel(1.0f);
  
  
  
  
  
              if (homeActivity.reverbPreset == -1) {
  
                  presetReverb.setPreset(PresetReverb.PRESET_NONE);
  
              } else {
  
                  presetReverb.setPreset(homeActivity.reverbPreset);
  
              }
  
              presetReverb.setEnabled(true);
  
              mMediaPlayer.setAuxEffectSendLevel(1.0f);
  
  
  
          } catch (Exception e) {
  
              e.printStackTrace();
  
          }
  
      }
  
      if (homeActivity.isEqualizerEnabled && homeActivity.isEqualizerReloaded) {
  
          try {
  
              homeActivity.isEqualizerEnabled = true;
  
              int pos = homeActivity.presetPos;
  
              if (pos != 0) {
  
                  mEqualizer.usePreset((short) (pos - 1));
  
              } else {
  
                  for (short i = 0; i < 5; i++) {
  
                      mEqualizer.setBandLevel(i, (short) homeActivity.seekbarpos[i]);
  
                  }
  
              }
  
              if (homeActivity.bassStrength != -1 && homeActivity.reverbPreset != -1) {
  
                  bassBoost.setEnabled(true);
  
                  bassBoost.setStrength(homeActivity.bassStrength);
  
                  presetReverb.setEnabled(true);
  
                  presetReverb.setPreset(homeActivity.reverbPreset);
  
              }
  
              mMediaPlayer.setAuxEffectSendLevel(1.0f);
  
  
  
          } catch (Exception e) {
  
              e.printStackTrace();
  
          }
  
      }

  where mMediaPlayer is ffmpeg...Other than that the library is working fine in regards to streaming. The only problem is that it doesn’t get any effect put in. I thought this might be a coding problem so I just switched ffmpeg with Android standard media player like I mentioned above and it works. FFmpeg - bass boost and equalizer only works in the emulator and not in real phone device.

  Another strange thing was that the effect initially worked at first in debug run mode and stopped working after I signed the apk. From which point on it stopped working both in the debug as well as any other run modes i.e - release also....I’m not using any pro guard rules also.

  Points to note :
  1. Replacing FFmpegmediaplayer with Standard Media player the effects works.
  2. Effects worked before signing the apk then stopped working in all run modes
  3. Using the same code above for FFMpegmediaplayer effects only work in the
  Emulator and not in real device.
  4. Other than the effects problem, FFmpegmediaplayer is functional regarding
  streaming and local playback - in real phone device as well as emulator.

• Can I direct ffmpeg to a folder to do work using SET PATH ?

  11 août 2017, par 3pointedit

  I have some "MXF-type" media (various media files in a containing folder) As long as I have cmd line set to the media folder it works but if I want to run from C : and point to the media directory using explicit SET PATH it won’t run ffmpeg. I don’t know why. What is wrong with the way I am expecting SET PATH to work ?

  C:\Users\MYNAME>SET PATH=%PATH%;"H:\2017\PeterMc\camb_LungDoctor_730_1403(1).vmf\" ffmpeg -enable_drefs 1 -use_absolute_path 0 -i camb_LungDoctor_730_1403(1).mov -map 0:v -map 0:a -write_tmcd 1 camb_LungDoctor_730_1403(1).mp4

  While the following example works you can see that cmd must be in the media folder path.

  H:\2017\Peter Mc\camb_LungDoctor_730_1403(1).vmf> ffmpeg -enable_drefs 1 -use_absolute_path 0 -i camb_LungDoctor_730_1403(1).mov -map 0:v -map 0:a -write_tmcd 1 camb_LungDoctor_730_1403(1).mp4