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Dieter.Soltau
n00b
Joined: 27 Nov 2011
Posts: 68
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 Posted: Sun Sep 30, 2012 4:50 pm Post subject: tool to *merge* video - not convert.. |
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hi folx,
i am looking for a simple tool to *merge* videoclips. all are same size and quality. it could either be commandline, KDE/GTK or even win7 (that i run in vbox).
a really nice tool is *avidemux* - that does its job perfectly.. just merging the clips and doing a copy to disk.. but i can not select *multiple* files to append. adding single files only is a real PIA..
so, anyone has a solution to this problem? |
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avx
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Joined: 21 Jun 2004
Posts: 2064
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| Posted: Sun Sep 30, 2012 8:08 pm Post subject: |
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Avidemux should work, just drag all files into the window or use the CLI. Alternatively, mencoder (from mplayer package) and ffmpeg can do it, too.
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salahx
Guru
Joined: 12 Mar 2005
Posts: 349
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| Posted: Sun Sep 30, 2012 10:03 pm Post subject: |
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Actually several years i created a shell script to do exactly that. It needs ffmpeg and mplayer.
| ffmpeg-concat.sh: |
#!/bin/bash
cleanup()
{
kill `ps --ppid $$ -o pid --no-header` > /dev/null 2>&1
find -maxdepth 1 -mindepth 1 -type p -delete
}
trap cleanup 0
declare -a INPUTFILES
declare -a INPUT_VIDEO_HEIGHT
declare -a INPUT_VIDEO_WIDTH
declare -a INPUT_VIDEO_FPS
declare -a INPUT_AUDIO_RATE
declare -a INPUT_AUDIO_NCH
declare -i INPUTCOUNT=0
while getopts :i: MYOPTS
do
case $MYOPTS in
i) if [ -z "$INPUTTRAP" ]
then
INPUTFILES[${INPUTCOUNT}]="${OPTARG}"
(( INPUTCOUNT++ ))
else
echo "Error: All input files must procede ffmpeg options"
exit 1
fi
;;
:) echo "Error: -i requires an argument"
exit;
;;
\?) INPUTTRAP=1
;;
esac
done
if [ "$INPUTCOUNT" -le 0 ]
then
echo "Error: You must specificy at least 1 input file!"
exit 1
fi
shift $(expr "$INPUTCOUNT" \* 2 )
for ((I = 0; I < "$INPUTCOUNT"; I++))
do
while read MPLAYERIDENTIFY
do
case "${MPLAYERIDENTIFY/%=*/}" in
ID_VIDEO_HEIGHT) INPUT_VIDEO_HEIGHT[${I}]="${MPLAYERIDENTIFY/#*=/}" ;;
ID_VIDEO_WIDTH) INPUT_VIDEO_WIDTH[${I}]="${MPLAYERIDENTIFY/#*=/}" ;;
ID_VIDEO_FPS) INPUT_VIDEO_FPS[${I}]="${MPLAYERIDENTIFY/#*=/}" ;;
ID_AUDIO_RATE) INPUT_AUDIO_RATE[${I}]="${MPLAYERIDENTIFY/#*=/}" ;;
ID_AUDIO_NCH) INPUT_AUDIO_NCH[${I}]="${MPLAYERIDENTIFY/#*=/}" ;;
esac
done < <(mplayer -identify -frames 0 "${INPUTFILES[${I}]}" 2> /dev/null)
done
{
for ((I = 0; I < "$INPUTCOUNT"; I++))
do
mkfifo "${INPUTFILES[${I}]}".{yuv,pcm}
ffmpeg -i "${INPUTFILES[${I}]}" -an -f rawvideo - > "${INPUTFILES[${I}]}.yuv" &
ffmpeg -i "${INPUTFILES[${I}]}" -vn -f s16le -acodec pcm_s16le \
-ac "${INPUT_AUDIO_NCH[${I}]}" -ar "${INPUT_AUDIO_RATE[${I}]}" - > "${INPUTFILES[${I}]}.pcm" &
done
mkfifo video.yuv
mkfifo audio.pcm
cat "${INPUTFILES[@]/%/.yuv}" > video.yuv &
cat "${INPUTFILES[@]/%/.pcm}" > audio.pcm &
} 0</dev/null 1>/dev/null 2>&1
ffmpeg -f rawvideo -r "${INPUT_VIDEO_FPS[0]}" -s "${INPUT_VIDEO_WIDTH[0]}"x"${INPUT_VIDEO_HEIGHT[0]}" -pix_fmt yuv420p -i video.yuv \
-f s16le -acodec pcm_s16le -ac "${INPUT_AUDIO_NCH[0]}" -ar "${INPUT_AUDIO_RATE[0]}" -i audio.pcm \
"$@"
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To use it, do something like "ffmpeg-conat.sh" -i file1 -i file2 -i file3 ... and the usual ffmpeg options after the input files. So, for example:
| Code: |
./ffmpeg-concat.sh i "9/11 2000 AND FUN - Starring James Woods - CD1.avi" -i "9/11 2000 AND FUN - Starring James Woods - CD2.avi" -target ntsc-dvd -aspect 16:9 -y "9/11 2000 AND FUN - Starring James Woods.mpg"
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Dieter.Soltau
n00b
Joined: 27 Nov 2011
Posts: 68
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| Posted: Wed Oct 03, 2012 3:08 pm Post subject: |
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| avx wrote: | | Avidemux should work, just drag all files into the window or use the CLI. Alternatively, mencoder (from mplayer package) and ffmpeg can do it, too. |
duh! looks like avidemux actuallx does that.. however.. those movies are done with a canon powershot, and avidemux complains everytime that the B field is preference.. and if i would like to fix that. so i have to deny this for every single clip.. hmm.. |
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Dieter.Soltau
n00b
Joined: 27 Nov 2011
Posts: 68
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| Posted: Wed Oct 03, 2012 3:10 pm Post subject: |
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| salahx wrote: |
To use it, do something like "ffmpeg-conat.sh" -i file1 -i file2 -i file3 ... and the usual ffmpeg options after the input files. So, for example:
| Code: |
./ffmpeg-concat.sh i "9/11 2000 AND FUN - Starring James Woods - CD1.avi" -i "9/11 2000 AND FUN - Starring James Woods - CD2.avi" -target ntsc-dvd -aspect 16:9 -y "9/11 2000 AND FUN - Starring James Woods.mpg"
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err.. sometimes there are about 64 clips! and i do not want to transcode or convert, just MERGE the files, hm.. nixe script tho  |
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avx
Advocate
Joined: 21 Jun 2004
Posts: 2064
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| Posted: Wed Oct 03, 2012 3:22 pm Post subject: |
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| Code: | #!/bin/bash
INPUTS=""
for i in ${@} ; do INPUTS+="-i ${i} " ; done
ffmpeg ${INPUTS} -acodec copy -vcodec copy output.file |
Call it with `script.sh *.avi`, provided the files follow a logical naming scheme, f.e. 000.avi ... 099.avi.
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Dieter.Soltau
n00b
Joined: 27 Nov 2011
Posts: 68
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| Posted: Wed Oct 03, 2012 3:48 pm Post subject: |
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| avx wrote: | | Code: | #!/bin/bash
INPUTS=""
for i in ${@} ; do INPUTS+="-i ${i} " ; done
ffmpeg ${INPUTS} -acodec copy -vcodec copy output.file |
Call it with `script.sh *.avi`, provided the files follow a logical naming scheme, f.e. 000.avi ... 099.avi. |
that looks pretty slick.. they are blabla1671.mov to blabla1972.mov - inbetween some are missing, hope that doesnt matter, but i get your drift.. will try asap, thx
bash FTW |
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Dieter.Soltau
n00b
Joined: 27 Nov 2011
Posts: 68
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| Posted: Wed Oct 03, 2012 3:54 pm Post subject: |
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hmm..
| Code: | [NULL @ 0x30c1b20] Unable to find a suitable output format for 'output.file'
output.file: Invalid argument |
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avx
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Joined: 21 Jun 2004
Posts: 2064
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| Posted: Wed Oct 03, 2012 4:00 pm Post subject: |
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Sure, you need to set it to 'output.avi' or 'output.mpg' or whatever container you have.
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Dieter.Soltau
n00b
Joined: 27 Nov 2011
Posts: 68
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| Posted: Wed Oct 03, 2012 4:03 pm Post subject: |
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| avx wrote: | | Sure, you need to set it to 'output.avi' or 'output.mpg' or whatever container you have. |
i did, but then only the first file is exported.. ?? i set it to "new.mov"
however, i see on the screen it is reading in all files fine.. |
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avx
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Joined: 21 Jun 2004
Posts: 2064
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| Posted: Wed Oct 03, 2012 4:19 pm Post subject: |
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Strange, but ok. You can try [url=http://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20concatenate%20(join,%20merge)%20media%20files]this script[/url] - it's pretty well documented, just need to make some changes.
If you don't need to keep the container as .mov, you could do it easily with `mkvmerge`(cli) or `mmg`, both from media-video/mkvtoolnix.
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Dieter.Soltau
n00b
Joined: 27 Nov 2011
Posts: 68
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| Posted: Wed Oct 03, 2012 4:28 pm Post subject: |
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| avx wrote: | Strange, but ok. You can try [url=http://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20concatenate%20(join,%20merge)%20media%20files]this script[/url] - it's pretty well documented, just need to make some changes.
If you don't need to keep the container as .mov, you could do it easily with `mkvmerge`(cli) or `mmg`, both from media-video/mkvtoolnix. |
above link pls put in .. totaly broken.
mkvmerge i did, gives warnings, and results in no output neither with vlc nor dragon player..
anyway, i would love to keep the format it was in.. why bother with containers, hmm..
it is just supposed to be a backup of my sourcemovie(s) - and i dislike to have that many files in my folders..... |
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salahx
Guru
Joined: 12 Mar 2005
Posts: 349
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| Posted: Thu Oct 04, 2012 4:55 pm Post subject: |
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By "merge" do you mean concatenate them together? If so the transcoding step is generally unavoidable - most formats are not concatenatable, they have converted to a format that is (like raw yuv/pcm), cat'd together then re-encoded. The decoding is loseless but hte re-encoding is lossy if the original format was.
You can still use the script even with 64 movies fairly easily:
| Code: | | ./ffmpeg-concat "-i file00"{00..63}.avi |
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Fitzcarraldo
Guru
Joined: 30 Aug 2008
Posts: 345
Location: United Kingdom
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frostschutz
Advocate
Joined: 22 Feb 2005
Posts: 2288
Location: Germany
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| Posted: Fri Oct 05, 2012 1:45 pm Post subject: |
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My video recorder records television programmes to FAT filesystem and splits files every 2G
I join them back together using ffmpeg using the concat syntax. also reencode to x264 but I guess it should work with copy codecs.
| Code: |
inputs=`echo *.ts | sed -e "s@ @|@g"`
ffmpeg -i concat:"$inputs" -map 0:v -map 0:a -threads 2 -vf yadif=0:-1:1 -vcodec libx264 -vpre fast -crf 22 -nr 300 -c:a libvorbis -aq 4 -async 1024 -y "$TARGET"/"$block".mkv
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if the source format is a pure stream you could also just cat a b c > abc |
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