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• Anomalie #1876 : Non prise en compte des guillemets dans le surlignage

  14 juin 2011, par cedric -

  voir aussi #2025

• Bash script to automate FFmpeg operations fails when calling the command, but copy-pasting the generated command into the terminal works [duplicate]

  28 février, par GaboScharff99

  I wrote a bash script which automates a number of conversion operations on video files using FFmpeg. Oddly enough, the FFmpeg call itself now fails when running the script, with a very confusing error message, I might add, but when I copy the command generated by the script into the terminal and run it, it works flawlessly. I'm sorry to insert such a long code block here, but considering how strange this error is, it might be anywhere in the script, so here it is :

  


  #!/bin/bash

audioTrack=1
subSource=1
subTrack=0
transcodeVideo=1
transcodeAudio=1
volumeMultiplier=1
degradeToStereo=0
subLanguage="Japanese"

while getopts "t:ns:vam:dl:h" opt; do
    case "$opt" in
        t) audioTrack=${OPTARG};;
        n) subSource=0;;
        s) subTrack=${OPTARG};;
        v) transcodeVideo=0;;
        a) transcodeAudio=0;;
        m) volumeMultiplier=${OPTARG};;
        d) degradeToStereo=1;;
        l) subLanguage=${OPTARG};;
        h)
            echo "Options:"
            echo "-t [integer]: Audio track number. Default: 1."
            echo "-n: If included, subtitles will be taken from internal source."
            echo "-s [integer]: Subtitles track number. Default: 0."
            echo "-v: If included, video source will be copied without transcoding."
            echo "-a: If included, audio source will be copied without transcoding."
            echo "-m [number]: Volume multiplier. If 1, volume is unaffected. Default: 1"
            echo "-d: If included, audio will be degraded to stereo."
            echo "-l [language]: Subtitles language. Only used for external subtitles source. Default: Japanese."
            exit 0
        ;;
    esac
done

echo "Audio track: $audioTrack."
echo "Subtitles track: $subTrack."
params="-map 0:0 -map 0:$audioTrack -map $subSource:$subTrack -c:v"

if [[ $transcodeVideo -eq 1 ]]; then
    echo "Video will be transcoded."
    params="$params hevc"
elif [[ $transcodeVideo -eq 0 ]]; then
    echo "Video will be copied without transcoding."
    params="$params copy"
fi

params="$params -c:a"

if [[ $transcodeAudio -eq 1 ]]; then
    echo "Audio will be transcoded."
    params="$params libopus"
elif [[ $transcodeAudio -eq 0 ]]; then
    echo "Audio will be copied without transcoding."
    params="$params copy"
fi

if [[ $volumeMultiplier -ne 1 ]]; then
    echo "Volume will be multiplied by a factor of $volumeMultiplier."
    params="$params -filter:a 'volume=$volumeMultiplier'"
else
    echo "Volume will be unaffected."
fi

if [[ $degradeToStereo -eq 1 ]]; then
    echo "Audio will be degraded to stereo."
    params="$params -ac 2"
elif [[ $degradeToStereo -eq 0 ]]; then
    echo "Audio will not be degraded to stereo."
fi

params="$params -c:s copy"

if [[ $subSource -eq 1 ]]; then
    echo "Subtitles source is external."
    echo "Subtitles language is $subLanguage."
    params="$params -metadata:s:s:0 title='' -metadata:s:s:0 language='$subLanguage'"
else
    echo "Subtitles source is internal."
fi

if [[ -f titles.txt ]]; then
    echo "A titles.txt file was found. Titles will be changed according to it."
    echo "Please check titles.txt to make sure the titles are correct."
    changeTitles=1
    counter=0
else
    echo "A titles.txt file was not found. Titles will not be changed."
    changeTitles=0
fi

read -p "Are these options correct? (y/n) " choice

case "$choice" in
    y|Y)
        echo "Initiating conversion sequence. This may take a while..."

        mkdir output
        currentParams=""

        shopt -s nullglob
        for i in *.mp4 *.mkv; do
            currentParams=$params
            fileNameNoExtension=$(echo $i | rev | cut -f 2- -d '.' | rev)

            if [[ $subSource -eq 1 ]]; then
                currentParams="-f srt -i $fileNameNoExtension.srt $currentParams"
            fi

            if [[ $changeTitles -eq 1 ]]; then
                ((counter++))
                currentParams="$currentParams -metadata title='$(awk "NR==$counter" titles.txt)'"
            fi

            ffmpeg -i "$i" $currentParams "output/$fileNameNoExtension.mkv"
        done

        echo "Conversion finished!"
    ;;
    n|N) echo "Operation canceled. Exiting.";;
    *) echo "Invalid input. Try again.";;
esac


  


  The directory I'm running this in contains six video files :

  


  

  1. E1 - The Pirates of Orion.mkv

  


  2. E2 - Bem.mkv

  


  3. E3 - The Practical Joker.mkv

  


  4. E4 - Albatross.mkv

  


  5. E5 - How Sharper Than a Serpent's Tooth.mkv

  


  6. E6 - The Counter-Clock Incident.mkv

  


  


  Here's the titles.txt file, for completion's sake :

  


  Star Trek: The Animated Series - Season 2, Episode 1 - The Pirates of Orion
Star Trek: The Animated Series - Season 2, Episode 2 - Bem
Star Trek: The Animated Series - Season 2, Episode 3 - The Practical Joker
Star Trek: The Animated Series - Season 2, Episode 4 - Albatross
Star Trek: The Animated Series - Season 2, Episode 5 - How Sharper Than a Serpent's Tooth
Star Trek: The Animated Series - Season 2, Episode 6 - The Counter-Clock Incident


  


  And finally, here's the error message given by FFmpeg on the terminal for every video file when running the command :

  


  Unable to find a suitable output format for 'Trek:'
Trek:: Invalid argument


  


  Maybe there are better ways to handle all of this, but first and foremost, I would like to figure out why the command fails with such a confusing error message. The only place where the string 'Trek :' is found is in the title taken from titles.txt, but I don't understand why that's seemingly being passed to the name of the output file instead of the title, and apparently only when running the script.

  


  Thanks a lot for your answers ! I know this is quite a bit of text, so I really appreciate you taking your time to read through this.

  


• Python-ffmpeg video metadata editing script - Error splitting the argument list : Option not found

  16 janvier, par maric193

  I have been updating a simple script that allows me to mass edit video files metadata (in a specific folder) and save them with a new filename (inside the same folder). I have been bouncing around different forums and decided to try python-ffmpeg.
For some reason right now I am getting the below FFmpegInvalidCommand exception

  


  Error splitting the argument list: Option not found

  


  I am not quite sure what I am doing wrong here, so I am wondering if someone can give me a fresh set of eyes to determine what the problem is. Apologies in advance, there may be some leftover code that I have not cut out yet. Thanks in advance !

  


  import os
import re
import sys
from pathlib import Path
from ffmpeg import FFmpeg, FFmpegFileNotFound, FFmpegInvalidCommand
#Project looks through a folder, checks all the files in there, then edits metadata (and filename)
#and returns a new file for each file inside the folder

video = 'Anime' #Movie/TVSeries/Anime/etc...
name = 'Sword Art Online (2012)'
extension = '.mkv'
season = '01'
episode = 1

try:
    folder = r'D:\ServerTransfer\Update Server\%s\%s\S%s\\' % (video, name, season)

    #Check current file names
    print('Current names are: ')
    res = os.listdir(folder)
    print(res)
    
    # episode increase by 1 in each iteration
    # iterate all files from a directory
    for file_name in os.listdir(folder):
        # Construct old file name
        source = folder + file_name
        try:
            title = ''
            if episode < 100:
                # Adding the season & episode #'s
                destination = folder + name + '.S' + season + 'E0' + str(episode) + extension
                title = name + '.S' + season + 'E0' + str(episode)
##            elif episode < 100:
##                # Adding the season & episode #'s
##                destination = folder + name + '.S' + season + '.E0' + str(episode) + extension
            else:
                # Adding the season & episode #'s
                destination = folder + name + '.S' + season + 'E' + str(episode) + extension
                title = name + '.S' + season + 'E' + str(episode)
            # Renaming the file
            if file_name.endswith(extension):
                ffmpeg = FFmpeg(executable=r'c:\FFmpeg\bin\ffmpeg.exe').option("y").input(source).output(destination,codec="copy",title=title)
                ffmpeg.execute()
        except FFmpegFileNotFound as exception:
            print("An FFmpegFileNotFound exception has been occurred!")
            print("- Message from ffmpeg:", exception.message)
            print("- Arguments to execute ffmpeg:", exception.arguments)
        except FFmpegInvalidCommand as exception:
            print("An FFmpegInvalidCommand exception has been occurred!")
            print("- Message from ffmpeg:", exception.message)
            print("- Arguments to execute ffmpeg:", exception.arguments)
        except Exception as err:
            print(f'Unexptected {err=}, {type(err)=}')
            raise
        episode += 1
    print('All Files Renamed')
    print('New Names are')
    # verify the result
    res = os.listdir(folder)
    print(res)
except OSError as err:
    print('OS error:', err)
except Exception as err:
    print(f'Unexptected {err=}, {type(err)=}')
    raise


  


  Here is what one of my print statements in the exception says is being executed

  


  - Arguments to execute ffmpeg: ['c:\\FFmpeg\\bin\\ffmpeg.exe', '-y', '-i', 'D:\\ServerTransfer\\Update Server\\Anime\\Sword Art Online (2012)\\S01\\\\[Kosaka] Sword Art Online - 01 - The World of Swords (1080p AV1 10Bit BluRay OPUS) [73066623].mkv', '-codec', 'copy', '-title', 'Sword Art Online (2012).S01E01', 'D:\\ServerTransfer\\Update Server\\Anime\\Sword Art Online (2012)\\S01\\\\Sword Art Online (2012).S01E01.mkv']


  


  I have tried different variations of trying to run ffmpeg via python including using subprocess and shlex libraries. I also tried moviepy, however no one has answered me back on their page.