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• FFMPEG XFade Transition

  21 juin 2022, par UserErrorLoL

  I am attempting to use xfade transitions to link multiple video files but I have noticed that the transition does not finish in most cases. If I set the duration to 1 second, it may get 1/4 through the screen before instantly starting the next video. Does this have something to do with my ffmpeg settings like framerate ? My current call is ffmpeg -i inputs 1-10 -aspect 16:9 -filter complex video_fades -map [final] -c:v libx264 -preset ultrafast -crf 28 out.mp4

  


  The inputs are all 1920x1080 60fps videos and the video fades graph is

  


  


  [0:v][1:v]xfade=transition=wipeleft:duration=2.000000:offset=32.700[v01] ;
[v01][2:v]xfade=transition=squeezeh:duration=2.000000:offset=125.400[v12] ;
[v12][3:v]xfade=transition=slideup:duration=2.000000:offset=218.100[v23] ;
[v23][4:v]xfade=transition=slidedown:duration=2.000000:offset=310.800[v34] ;
[v34][5:v]xfade=transition=wipedown:duration=2.000000:offset=403.500[v45] ;
[v45][6:v]xfade=transition=zoomin:duration=2.000000:offset=496.200[v56] ;
[v56][7:v]xfade=transition=slidedown:duration=2.000000:offset=588.900[v67] ;
[v67][8:v]xfade=transition=dissolve:duration=2.000000:offset=681.600[v78] ;
[v78][9:v]xfade=transition=slidedown:duration=2.000000:offset=774.300[v89] ;
[v89]format=pix_fmts=yuv420p[final]

  


  


  Has anyone else had this problem and knows how to fix it ?

  


• Adding watermark to video

  27 avril 2018, par equallyhero

  I am able to use the moviepy library to add a watermark to a section of video. However when I do this it is taking the watermarked segment, and creating a new file with it. I am trying to figure out if it is possible to simply splice in the edited part back into the original video, as moviepy is EXTREMELY slow writing to the disk, so the smaller the segment the better.

  I was thinking maybe using shutil ?

  video = mp.VideoFileClip("C:\\Users\\admin\\Desktop\\Test\\demovideo.mp4").subclip(10,20)
  
  
  
  logo = (mp.ImageClip("C:\\Users\\admin\\Desktop\\Watermark\\watermarkpic.png")
  
            .set_duration(20)
  
            .resize(height=20) # if you need to resize...
  
            .margin(right=8, bottom=8, opacity=0) # (optional) logo-border padding
  
            .set_pos(("right","bottom")))
  
  
  
  final = mp.CompositeVideoClip([video, logo])
  
  final.write_videofile("C:\\Users\\admin\\Desktop\\output\\demovideo(watermarked).mp4", audio = True, progress_bar = False)

  Is there a way to copy the 10 second watermarked snippet back into the original video file ? Or is there another library that allows me to do this ?

• AWS MediaConvert generating double length video

  1er mai 2024, par user1hjgjhgjhggjhg

  I am new to aws media convert. I am trying to convert the video but the final output video becomes double the length from the original one. for example if I have a video 30 seconds long, it will create 60 seconds long final video. Below is my son.

  


  {
  "Queue": "arn:aws:mediaconvert:us-west-2:730335xxxxx:queues/Default",
  "UserMetadata": {},
  "Role": "arn:aws:iam::73033541xxxx:role/service-role/MediaConvert_Default_Role",
  "Settings": {
    "TimecodeConfig": {
      "Source": "ZEROBASED"
    },
    "OutputGroups": [
      {
        "Name": "DASH ISO",
        "Outputs": [
          {
            "ContainerSettings": {
              "Container": "MPD"
            },
            "VideoDescription": {
              "CodecSettings": {
                "Codec": "H_264",
                "H264Settings": {
                  "MaxBitrate": 3500000,
                  "RateControlMode": "QVBR",
                  "SceneChangeDetect": "TRANSITION_DETECTION"
                }
              }
            },
            "NameModifier": "_output1"
          }
        ],
        "OutputGroupSettings": {
          "Type": "DASH_ISO_GROUP_SETTINGS",
          "DashIsoGroupSettings": {
            "SegmentLength": 30,
            "Destination": "s3://tutorial/video/",
            "FragmentLength": 2,
            "SegmentControl": "SINGLE_FILE"
          }
        }
      }
    ],
    "FollowSource": 1,
    "Inputs": [
      {
        "AudioSelectors": {
          "Audio Selector 1": {
            "DefaultSelection": "DEFAULT"
          }
        },
        "VideoSelector": {},
        "TimecodeSource": "ZEROBASED",
        "FileInput": "s3://tutorial/video/11 - video.mp4"
      }
    ]
  },
  "BillingTagsSource": "JOB",
  "AccelerationSettings": {
    "Mode": "DISABLED"
  },
  "StatusUpdateInterval": "SECONDS_60",
  "Priority": 0
}


  


  Please help