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• bash : find truncates some paths [duplicate]

  17 novembre 2023, par fweber

  I'm using MacOS 13.0.1 and try to find + loop over .mov files to convert them to MP4 using FFMPEG. Many of my path contain spaces and special characters. I found a way of putting things together thanks to this post :

  


  function convert_to_mp4_then_rm() {
    while IFS= read -r -d '' file
    do
        ffmpeg -i "$file" "${file%.mov}.mp4"
    done < <(find /Users/f.weber/Downloads -type f -name "*.mov" -print0)
}


  


  This runs but I found a (random ?) error : it looks like some of the paths are truncated when they arrive to the ffmpeg CLI.

  


  Example to reproduce with a basic content :

  


  ll Downloads/
total 9472
-rw-r--r--  1 f.weber  staff   2,3M 26 sep 08:56 23-09-26 08-56-50-2538.mov
-rw-r--r--  1 f.weber  staff   2,3M 26 sep 08:56 23-09-26 08-56-50-2539.mov


  


  When I call convert_to_mp4_then_rm in a terminal, the first MOV file is properly processed then I have the following error from FFMPEG : /Downloads/23-09-26 08-56-50-2539.mov: No such file or directory. In some conditions (e.g. when the path is longer) the truncation is more obvious and can occur in the middle of a word.

  


  What is the explanation for this ? How to forward untruncated paths to my function's core ?

  


  Thanks !

  


• ffmpeg cant find codec to cu 10 seconds movie

  19 novembre 2017, par Logan

  I tried cut 10 seconsd from movie and convert to mp4. But sometiems i have a eroor like below :

  Duration: 00:08:52.40, start: 0.000000, bitrate: 1126 kb/s
  
      Stream #0:0: Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, stereo, fltp, 96 kb/s
  
      Stream #0:1: Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 640x480, 1000 kb/s, SAR 1:1 DAR 4:3, 29.97 tbr, 1k tbn, 1k tbc
  
  [mp4 @ 0x5614bbea1300] Could not find tag for codec wmv3 in stream #0, codec not currently supported in container
  
  Could not write header for output file #0 (incorrect codec parameters ?): Invalid argumentStream mapping:

  What does mean this error ? should i install some extra codec ?

  My exec line looks like :

  ffmpeg -i input.wmv -ss 00:00:00 -to 0 -c copy 0:00:10 output.mp4

• Unable to find `ReturnCode` from ffmpeg in Flutter

  1er décembre 2022, par Stéphane de Luca

  Here is a snippet that does not compile due to the Unable to find ReturnCode`` error message.

  


  What's missing ?

  


  
import 'package:ffmpeg_kit_flutter/ffmpeg_kit.dart';

class Video {

  /// Executes the command
  void execute(String command) async {
    FFmpegKit.execute(command).then((session) async {
      final returnCode = await session.getReturnCode();

      if (ReturnCode.isSuccess(returnCode)) {
        // SUCCESS

      } else if (ReturnCode.isCancel(returnCode)) {
        // CANCEL

      } else {
        // ERROR

      }
    });
  }
}