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• ffmpeg producing empty MP4 files

  3 mai 2017, par Joshua Dowell

  I am trying to use ffmpeg to convert MTS files to MP4 files. It seems as though the command is running correctly, but the resulting files end up being empty.

  joshua@joshua-VirtualBox:~$ ffmpeg -i /media/sf_2017-04/SD_044/00007.MTS /media/sf_2017-04/SD_04/000007.mp4
  
  ffmpeg version 0.8.17-4:0.8.17-0ubuntu0.12.04.2, Copyright (c) 2000-2014 the Libav developers
  
    built on Apr  1 2016 14:28:02 with gcc 4.6.3
  
  The ffmpeg program is only provided for script compatibility and will be removed
  
  in a future release. It has been deprecated in the Libav project to allow for
  
  incompatible command line syntax improvements in its replacement called avconv
  
  (see Changelog for details). Please use avconv instead.
  
  Input #0, mpegts, from '/media/sf_2017-04/SD_044/00007.MTS':
  
    Duration: 00:01:17.07, start: 1.927822, bitrate: 25053 kb/s
  
    Program 1 
  
      Stream #0.0[0x1011]: Video: h264 (High), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 59.96 fps, 59.94 tbr, 90k tbn, 119.88 tbc
  
      Stream #0.1[0x1100]: Audio: ac3, 48000 Hz, stereo, s16, 256 kb/s
  
      Stream #0.2[0x1200]: Data: [144][0][0][0] / 0x0090
  
  File '/media/sf_2017-04/SD_04/000007.mp4' already exists. Overwrite ? [y/N] y
  
  [buffer @ 0x88772a0] w:1920 h:1080 pixfmt:yuv420p
  
  ffmpeg -i /media/sf_2017-04/SD_044/00007.MTS /media/sf_2017-04/SD_04/000007.mp4
  
  ffmpeg version 0.8.17-4:0.8.17-0ubuntu0.12.04.2, Copyright (c) 2000-2014 the Libav developers
  
    built on Apr  1 2016 14:28:02 with gcc 4.6.3
  
  The ffmpeg program is only provided for script compatibility and will be removed
  
  in a future release. It has been deprecated in the Libav project to allow for
  
  incompatible command line syntax improvements in its replacement called avconv
  
  (see Changelog for details). Please use avconv instead.
  
  Input #0, mpegts, from '/media/sf_2017-04/SD_044/00007.MTS':
  
    Duration: 00:01:17.07, start: 1.927822, bitrate: 25053 kb/s
  
    Program 1 
  
      Stream #0.0[0x1011]: Video: h264 (High), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 59.96 fps, 59.94 tbr, 90k tbn, 119.88 tbc
  
      Stream #0.1[0x1100]: Audio: ac3, 48000 Hz, stereo, s16, 256 kb/s
  
      Stream #0.2[0x1200]: Data: [144][0][0][0] / 0x0090
  
  File '/media/sf_2017-04/SD_04/000007.mp4' already exists. Overwrite ? [y/N] y
  
  [buffer @ 0x88772a0] w:1920 h:1080 pixfmt:yuv420p
  
  encoder 'aac' is experimental and might produce bad results.
  
  Add '-strict experimental' if you want to use it.

• Empty error object produced by ffprobe in Google Cloud Function

  20 septembre 2023, par willbattel

  Update : After more digging I found an open GitHub issue where others appear to be encountering the same behavior.

  


  ---

  


  I have a Google Cloud Function (2nd gen) in which I am trying to use ffprobe to get metadata from a video file stored in a Google Cloud Storage bucket. It is my understanding that I can generate a signed url and, by passing that directly to ffprobe, avoid loading the entire video file into memory. I generate a signed url and pass it to ffprobe, and then parse the output like so :

  


  import ffmpeg from 'fluent-ffmpeg'
import ffprobeStatic from 'ffprobe-static'

async function getVideoData(srcFile: File) {
    const [signedUrl] = await srcFile.getSignedUrl({
        action: 'read',
        expires: (new Date()).getMilliseconds() + 60_000,
    })

    const videoData: ffmpeg.FfprobeData = await new Promise((resolve, reject) => {
        ffmpeg.setFfprobePath(ffprobeStatic.path)
        ffmpeg.ffprobe(signedUrl, (err, data) => {
            if (err) {
                reject(err)
            }
            else {
                resolve(data)
            }
        })
    })

    return videoData
}


  


  This code works (with the same signed URL) locally on my macOS machine, but does not when deployed in a 2nd generation Google Cloud Function. In the latter case, data is undefined and err is {}.

  


  My main question is how to properly use ffprobe in 2nd gen Google Cloud Functions. I have tried to research this but documentation on ffmpeg/ffprobe on GCP is sparse. I'm also trying to figure out exactly why the error object err is empty...it's not very helpful 😅

  


  Additional info :

  


  

  • Environment : Google Cloud Functions 2nd Gen

  


  • Runtime : Node 20

  


  • "ffprobe-static" : "3.1.0",

  


  • "fluent-ffmpeg" : "2.1.2"

  


  


  Thanks in advance.

  


• Anomalie #2327 : Voir le logo du site dans l’espace privé

  25 octobre 2011, par tetue -

  Pourquoi pas, mais ce serait plutôt ’edition’, car il s’agit d’éditer (le descriptif, etc.) et non de publier le site. On peut essayer, mais ça n’est pas choquant que ça reste à sa place habituelle. C’est surtout l’entrée ’Plugins’ qu’il faut déplacer dans ce menu, pour marquer la séparation entre (...)