How to merge multiple (more than two) videos on Ubuntu?
22
I want to merge videos in batch size of twenty (20) each. I'm running a Linux machine. The videos are in mp4 format and moderate quality. Some even have the audio stream missing. So far I've tried ffmpeg, mencoder, cvlc/vlc and MP4Box. I want to write a command line script to achieve this, since I'm doing batch processing.
The main issue is that some of the solutions I tried work well for two videos, some work well for videos with audio stream and yet others work well for some other subset of my video set. However, I have not been able to find a comprehensive solution for this task.
command-line video vlc ffmpeg mencoder
edited May 14 '18 at 0:16
Ciro Santilli 新疆改造中心 六四事件 法轮功
9,40944347
asked Jun 16 '15 at 10:02
Dhruv SingalDhruv Singal
1611110
|
show 1 more comment
22
I want to merge videos in batch size of twenty (20) each. I'm running a Linux machine. The videos are in mp4 format and moderate quality. Some even have the audio stream missing. So far I've tried ffmpeg, mencoder, cvlc/vlc and MP4Box. I want to write a command line script to achieve this, since I'm doing batch processing.
The main issue is that some of the solutions I tried work well for two videos, some work well for videos with audio stream and yet others work well for some other subset of my video set. However, I have not been able to find a comprehensive solution for this task.
command-line video vlc ffmpeg mencoder
edited May 14 '18 at 0:16
Ciro Santilli 新疆改造中心 六四事件 法轮功
9,40944347
asked Jun 16 '15 at 10:02
Dhruv SingalDhruv Singal
1611110
2
Please don't ask same question in multi SE sites: superuser.com/questions/928548/…
– Maythux
Jun 16 '15 at 10:25
Could you post specifically what you've tried so far?
– ohaal
Jun 16 '15 at 14:18
@ohaal I tried using various concatenation methods given inffmpeg, including filters and file protocols. I also tried using theconcatfeature ofcvlc/vlc. I also tried theconcatfeature ofmencoder. All of these worked partially. This finally helped me solve the matter.
– Dhruv Singal
Jun 18 '15 at 4:25
Yes, you already mentioned the tools, what I meant was the actual commands you ran. Also it would be great if you could include the command that ended up solving it for you (in your answer), for future visitors.
– ohaal
Jun 18 '15 at 7:18
Aah, I see your point. Unfortunately, I can't list the commands due to the sheer number. The command which solved my problem was thismelt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264
– Dhruv Singal
Jun 19 '15 at 7:14
|
show 1 more comment
22
22
22
2
I want to merge videos in batch size of twenty (20) each. I'm running a Linux machine. The videos are in mp4 format and moderate quality. Some even have the audio stream missing. So far I've tried ffmpeg, mencoder, cvlc/vlc and MP4Box. I want to write a command line script to achieve this, since I'm doing batch processing.
The main issue is that some of the solutions I tried work well for two videos, some work well for videos with audio stream and yet others work well for some other subset of my video set. However, I have not been able to find a comprehensive solution for this task.
command-line video vlc ffmpeg mencoder
edited May 14 '18 at 0:16
Ciro Santilli 新疆改造中心 六四事件 法轮功
9,40944347
asked Jun 16 '15 at 10:02
Dhruv SingalDhruv Singal
1611110
I want to merge videos in batch size of twenty (20) each. I'm running a Linux machine. The videos are in mp4 format and moderate quality. Some even have the audio stream missing. So far I've tried ffmpeg, mencoder, cvlc/vlc and MP4Box. I want to write a command line script to achieve this, since I'm doing batch processing.
The main issue is that some of the solutions I tried work well for two videos, some work well for videos with audio stream and yet others work well for some other subset of my video set. However, I have not been able to find a comprehensive solution for this task.
command-line video vlc ffmpeg mencoder
command-line video vlc ffmpeg mencoder
edited May 14 '18 at 0:16
Ciro Santilli 新疆改造中心 六四事件 法轮功
9,40944347
asked Jun 16 '15 at 10:02
Dhruv SingalDhruv Singal
1611110
edited May 14 '18 at 0:16
Ciro Santilli 新疆改造中心 六四事件 法轮功
9,40944347
asked Jun 16 '15 at 10:02
Dhruv SingalDhruv Singal
1611110
edited May 14 '18 at 0:16
Ciro Santilli 新疆改造中心 六四事件 法轮功
9,40944347
edited May 14 '18 at 0:16
Ciro Santilli 新疆改造中心 六四事件 法轮功
9,40944347
edited May 14 '18 at 0:16
Ciro Santilli 新疆改造中心 六四事件 法轮功
9,40944347
9,40944347
asked Jun 16 '15 at 10:02
Dhruv SingalDhruv Singal
1611110
asked Jun 16 '15 at 10:02
Dhruv SingalDhruv Singal
1611110
asked Jun 16 '15 at 10:02
Dhruv SingalDhruv Singal
1611110
1611110
2
Please don't ask same question in multi SE sites: superuser.com/questions/928548/…
– Maythux
Jun 16 '15 at 10:25
Could you post specifically what you've tried so far?
– ohaal
Jun 16 '15 at 14:18
@ohaal I tried using various concatenation methods given inffmpeg, including filters and file protocols. I also tried using theconcatfeature ofcvlc/vlc. I also tried theconcatfeature ofmencoder. All of these worked partially. This finally helped me solve the matter.
– Dhruv Singal
Jun 18 '15 at 4:25
Yes, you already mentioned the tools, what I meant was the actual commands you ran. Also it would be great if you could include the command that ended up solving it for you (in your answer), for future visitors.
– ohaal
Jun 18 '15 at 7:18
Aah, I see your point. Unfortunately, I can't list the commands due to the sheer number. The command which solved my problem was thismelt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264
– Dhruv Singal
Jun 19 '15 at 7:14
|
show 1 more comment
2
Please don't ask same question in multi SE sites: superuser.com/questions/928548/…
– Maythux
Jun 16 '15 at 10:25
Could you post specifically what you've tried so far?
– ohaal
Jun 16 '15 at 14:18
@ohaal I tried using various concatenation methods given inffmpeg, including filters and file protocols. I also tried using theconcatfeature ofcvlc/vlc. I also tried theconcatfeature ofmencoder. All of these worked partially. This finally helped me solve the matter.
– Dhruv Singal
Jun 18 '15 at 4:25
Yes, you already mentioned the tools, what I meant was the actual commands you ran. Also it would be great if you could include the command that ended up solving it for you (in your answer), for future visitors.
– ohaal
Jun 18 '15 at 7:18
Aah, I see your point. Unfortunately, I can't list the commands due to the sheer number. The command which solved my problem was thismelt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264
– Dhruv Singal
Jun 19 '15 at 7:14
2
2
Please don't ask same question in multi SE sites: superuser.com/questions/928548/…
– Maythux
Jun 16 '15 at 10:25
Please don't ask same question in multi SE sites: superuser.com/questions/928548/…
– Maythux
Jun 16 '15 at 10:25
Could you post specifically what you've tried so far?
– ohaal
Jun 16 '15 at 14:18
Could you post specifically what you've tried so far?
– ohaal
Jun 16 '15 at 14:18
@ohaal I tried using various concatenation methods given in
ffmpeg, including filters and file protocols. I also tried using the concat feature of cvlc/vlc. I also tried the concat feature of mencoder. All of these worked partially. This finally helped me solve the matter.– Dhruv Singal
Jun 18 '15 at 4:25
@ohaal I tried using various concatenation methods given in
ffmpeg, including filters and file protocols. I also tried using the concat feature of cvlc/vlc. I also tried the concat feature of mencoder. All of these worked partially. This finally helped me solve the matter.– Dhruv Singal
Jun 18 '15 at 4:25
Yes, you already mentioned the tools, what I meant was the actual commands you ran. Also it would be great if you could include the command that ended up solving it for you (in your answer), for future visitors.
– ohaal
Jun 18 '15 at 7:18
Yes, you already mentioned the tools, what I meant was the actual commands you ran. Also it would be great if you could include the command that ended up solving it for you (in your answer), for future visitors.
– ohaal
Jun 18 '15 at 7:18
Aah, I see your point. Unfortunately, I can't list the commands due to the sheer number. The command which solved my problem was this
melt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264– Dhruv Singal
Jun 19 '15 at 7:14
Aah, I see your point. Unfortunately, I can't list the commands due to the sheer number. The command which solved my problem was this
melt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264– Dhruv Singal
Jun 19 '15 at 7:14
|
show 1 more comment
7 Answers
7
active
oldest
votes
27
I am using mkvmerge to join multiple MP4 files into single one:
mkvmerge -o outfile.mkv infile_01.mp4 + infile_02.mp4 + infile_03.mp4
edited Jan 15 '18 at 22:46
Elder Geek
26.5k952126
answered Oct 1 '16 at 9:45
Szabolcs SpindlerSzabolcs Spindler
27132
Nice, easy, quick. Thanks for sharing
– augusto
Mar 5 '17 at 14:10
2
It is better to use the extension.mkvfor the output file, as it is a Matroska container irrespective of what extension you give.
– haridsv
Sep 17 '17 at 7:27
Here's how to installmkvmerge: tipsonubuntu.com
– Morgoth
Jan 31 '18 at 9:54
add a comment |
17
You can do it using ffmpeg:
ffmpeg -i concat:"input1.mp4|input2.mp4" output.mp4
reference and more info
answered Jun 16 '15 at 10:24
MaythuxMaythux
50.6k32169215
2
I tried doing that. The issue with this is that it doesn't give a proper out. 1. The audio tracks are muddled. 2. There is some disturbance in the video track.
– Dhruv Singal
Jun 16 '15 at 11:26
I used it for more than sample, the result is high quality, maybe your source video quality is the problem?
– Maythux
Jun 17 '15 at 5:58
You are probably right. This solved the issue: askubuntu.com/a/637179/420614
– Dhruv Singal
Jun 18 '15 at 4:18
1
Don't use the concat protocol to concatenate MP4. It only works with certain formats that most general users don't encounter. Use concat demuxer or concat filter instead.
– llogan
Nov 17 '17 at 18:11
I tried ffmpeg with 2 mp4 files of 30min each. I got an output file with length 7 hours.
– Guus
Jul 3 '18 at 14:33
add a comment |
5
This solved the matter:
https://stackoverflow.com/a/22324018/5014767
melt is a great command line utility for this.
Here is the page
Edit from comments: The command which solved my problem was this
melt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264
edited May 23 '17 at 12:39
Community♦
1
answered Jun 16 '15 at 14:16
Dhruv SingalDhruv Singal
1611110
add a comment |
3
I wrote a little shell script to concat MP4s without transcoding using ffmpeg.
for f in $(ls *.MP4); do
ffmpeg -i $f -c copy -bsf:v h264_mp4toannexb -f mpegts $f.ts
done
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")
ffmpeg -i "concat:$CONCAT" -c copy -bsf:a aac_adtstoasc output.mp4
rm *.ts
This creates intermediate files in an MPEG container and then concatenates them into an MP4.
answered Apr 7 '18 at 20:26
RawwrBagRawwrBag
1313
It's important to note that this script will fail if any of the filenames contain spaces or, in some cases, special characters. For the loop, it's significantly better to use justfor f in *.MP4without usingls. (You should always avoid usinglsin scripts for a couple of important reasons; there are better options.) Also, use quotes for variables unless you are certain that there are no spaces or other special characters, so"${f}"(or just"$f") instead of unquoted$f.
– Paddy Landau
Jun 14 '18 at 14:11
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")doesn't work well with file names that are 1, 2, 3... 10... 20. It ends up parsing them as 1, 10... 2, 20... etc. I suggestCONCAT=$(echo $(ls -v *.ts) | sed -e "s/ /|/g")this will ensure order.
– tisaconundrum
Nov 16 '18 at 8:05
add a comment |
0
My script, purely in bash and ffmpeg. Re-encodes files given on a command line into one.
Requires the files to be of the same resolution. Accepts different metadata rotation, which ffmpeg concat: doesn't.
rm ffmpeg-concat-output.mkv
FILE_COUNT=$#
INPUTS=""
FILTER=""
INDEX=0
for FNAME in $@; do
echo "Processing ${FNAME}"
INPUTS="${INPUTS} -i $FNAME"
if [ -z "${FILTER}" ]; then
FILTER="[$INDEX:v:0] [$INDEX:a:0]"
else
FILTER="${FILTER} [$INDEX:v:0] [$INDEX:a:0]"
fi
let INDEX+=1
done
COMMAND="ffmpeg ${INPUTS}
-filter_complex '${FILTER}
concat=n=${INDEX}:v=1:a=1 [v] [a]'
-map '[v]' -map '[a]'
ffmpeg-concat-output.mkv"
# -af 'volume=15dB' # won't work with -filter_complex
bash -c "${COMMAND}"
edited Nov 17 '17 at 10:19
derHugo
2,29021429
answered Jun 5 '17 at 5:45
Victor SergienkoVictor Sergienko
4221616
add a comment |
0
I created a Python script that, using moviepy, can concatenate also subsegments (useful if you want for example remove some parts from a video).
Use it with:
vcat -i inputfile1,inputfile2[start-end],... -o <outputfile>
answered Jan 2 at 16:37
AntonelloAntonello
314317
add a comment |
-1
In addition to Maythux's answer, from :
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate video by merely concatenating the files containing them.
I.e. the videos to be concatenated use one of the abovementioned video containers (to which I'll add MPEG-4 Part 14 for personal experience), you could simply:
cat video1.ext video2.ext video3.ext > video4.ext
edited Jun 17 '15 at 6:00
Maythux
50.6k32169215
answered Jun 16 '15 at 10:49
koskos
25.4k870120
1
I tried this but it only returns the first video as the output. I read somewhere that it doesn't work, though I don't remember the rationale behind this.
– Dhruv Singal
Jun 16 '15 at 11:28
@DhruvSingal Yes, I can confirm this, I've tried this on two MP4 videos with the exact same video / audio encoding and as you I could only browse through the first video. Which seems reasonable, however I'm pretty sure that I've done this before once with a couple of MP4 videos. Perhaps the memory isn't serving well here, or there are other requirements for this to work. I want to research on this since I'm interested also, if I find something I'll update the answer and drop you a comment
– kos
Jun 16 '15 at 11:45
We somehow need to change the metadata at the start of the first video to encompass the entire length of the combined movie, and other stuff probably. Only a few mpeg4 files let me see the metadata..
– Ken Mollerup
Oct 22 '15 at 14:55
add a comment |
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7 Answers
7
active
oldest
votes
7 Answers
7
active
oldest
votes
active
oldest
votes
active
oldest
votes
27
I am using mkvmerge to join multiple MP4 files into single one:
mkvmerge -o outfile.mkv infile_01.mp4 + infile_02.mp4 + infile_03.mp4
edited Jan 15 '18 at 22:46
Elder Geek
26.5k952126
answered Oct 1 '16 at 9:45
Szabolcs SpindlerSzabolcs Spindler
27132
Nice, easy, quick. Thanks for sharing
– augusto
Mar 5 '17 at 14:10
2
It is better to use the extension.mkvfor the output file, as it is a Matroska container irrespective of what extension you give.
– haridsv
Sep 17 '17 at 7:27
Here's how to installmkvmerge: tipsonubuntu.com
– Morgoth
Jan 31 '18 at 9:54
add a comment |
27
I am using mkvmerge to join multiple MP4 files into single one:
mkvmerge -o outfile.mkv infile_01.mp4 + infile_02.mp4 + infile_03.mp4
edited Jan 15 '18 at 22:46
Elder Geek
26.5k952126
answered Oct 1 '16 at 9:45
Szabolcs SpindlerSzabolcs Spindler
27132
Nice, easy, quick. Thanks for sharing
– augusto
Mar 5 '17 at 14:10
2
It is better to use the extension.mkvfor the output file, as it is a Matroska container irrespective of what extension you give.
– haridsv
Sep 17 '17 at 7:27
Here's how to installmkvmerge: tipsonubuntu.com
– Morgoth
Jan 31 '18 at 9:54
add a comment |
27
27
27
I am using mkvmerge to join multiple MP4 files into single one:
mkvmerge -o outfile.mkv infile_01.mp4 + infile_02.mp4 + infile_03.mp4
edited Jan 15 '18 at 22:46
Elder Geek
26.5k952126
answered Oct 1 '16 at 9:45
Szabolcs SpindlerSzabolcs Spindler
27132
I am using mkvmerge to join multiple MP4 files into single one:
mkvmerge -o outfile.mkv infile_01.mp4 + infile_02.mp4 + infile_03.mp4
edited Jan 15 '18 at 22:46
Elder Geek
26.5k952126
answered Oct 1 '16 at 9:45
Szabolcs SpindlerSzabolcs Spindler
27132
edited Jan 15 '18 at 22:46
Elder Geek
26.5k952126
edited Jan 15 '18 at 22:46
Elder Geek
26.5k952126
edited Jan 15 '18 at 22:46
Elder Geek
26.5k952126
26.5k952126
answered Oct 1 '16 at 9:45
Szabolcs SpindlerSzabolcs Spindler
27132
answered Oct 1 '16 at 9:45
Szabolcs SpindlerSzabolcs Spindler
27132
answered Oct 1 '16 at 9:45
Szabolcs SpindlerSzabolcs Spindler
27132
27132
Nice, easy, quick. Thanks for sharing
– augusto
Mar 5 '17 at 14:10
2
It is better to use the extension.mkvfor the output file, as it is a Matroska container irrespective of what extension you give.
– haridsv
Sep 17 '17 at 7:27
Here's how to installmkvmerge: tipsonubuntu.com
– Morgoth
Jan 31 '18 at 9:54
add a comment |
Nice, easy, quick. Thanks for sharing
– augusto
Mar 5 '17 at 14:10
2
It is better to use the extension.mkvfor the output file, as it is a Matroska container irrespective of what extension you give.
– haridsv
Sep 17 '17 at 7:27
Here's how to installmkvmerge: tipsonubuntu.com
– Morgoth
Jan 31 '18 at 9:54
Nice, easy, quick. Thanks for sharing
– augusto
Mar 5 '17 at 14:10
Nice, easy, quick. Thanks for sharing
– augusto
Mar 5 '17 at 14:10
2
2
It is better to use the extension
.mkv for the output file, as it is a Matroska container irrespective of what extension you give.– haridsv
Sep 17 '17 at 7:27
It is better to use the extension
.mkv for the output file, as it is a Matroska container irrespective of what extension you give.– haridsv
Sep 17 '17 at 7:27
Here's how to install
mkvmerge: tipsonubuntu.com– Morgoth
Jan 31 '18 at 9:54
Here's how to install
mkvmerge: tipsonubuntu.com– Morgoth
Jan 31 '18 at 9:54
add a comment |
17
You can do it using ffmpeg:
ffmpeg -i concat:"input1.mp4|input2.mp4" output.mp4
reference and more info
answered Jun 16 '15 at 10:24
MaythuxMaythux
50.6k32169215
2
I tried doing that. The issue with this is that it doesn't give a proper out. 1. The audio tracks are muddled. 2. There is some disturbance in the video track.
– Dhruv Singal
Jun 16 '15 at 11:26
I used it for more than sample, the result is high quality, maybe your source video quality is the problem?
– Maythux
Jun 17 '15 at 5:58
You are probably right. This solved the issue: askubuntu.com/a/637179/420614
– Dhruv Singal
Jun 18 '15 at 4:18
1
Don't use the concat protocol to concatenate MP4. It only works with certain formats that most general users don't encounter. Use concat demuxer or concat filter instead.
– llogan
Nov 17 '17 at 18:11
I tried ffmpeg with 2 mp4 files of 30min each. I got an output file with length 7 hours.
– Guus
Jul 3 '18 at 14:33
add a comment |
17
You can do it using ffmpeg:
ffmpeg -i concat:"input1.mp4|input2.mp4" output.mp4
reference and more info
answered Jun 16 '15 at 10:24
MaythuxMaythux
50.6k32169215
2
I tried doing that. The issue with this is that it doesn't give a proper out. 1. The audio tracks are muddled. 2. There is some disturbance in the video track.
– Dhruv Singal
Jun 16 '15 at 11:26
I used it for more than sample, the result is high quality, maybe your source video quality is the problem?
– Maythux
Jun 17 '15 at 5:58
You are probably right. This solved the issue: askubuntu.com/a/637179/420614
– Dhruv Singal
Jun 18 '15 at 4:18
1
Don't use the concat protocol to concatenate MP4. It only works with certain formats that most general users don't encounter. Use concat demuxer or concat filter instead.
– llogan
Nov 17 '17 at 18:11
I tried ffmpeg with 2 mp4 files of 30min each. I got an output file with length 7 hours.
– Guus
Jul 3 '18 at 14:33
add a comment |
17
17
17
You can do it using ffmpeg:
ffmpeg -i concat:"input1.mp4|input2.mp4" output.mp4
reference and more info
answered Jun 16 '15 at 10:24
MaythuxMaythux
50.6k32169215
You can do it using ffmpeg:
ffmpeg -i concat:"input1.mp4|input2.mp4" output.mp4
reference and more info
answered Jun 16 '15 at 10:24
MaythuxMaythux
50.6k32169215
edited Jun 16 '15 at 10:32
answered Jun 16 '15 at 10:24
MaythuxMaythux
50.6k32169215
answered Jun 16 '15 at 10:24
MaythuxMaythux
50.6k32169215
answered Jun 16 '15 at 10:24
MaythuxMaythux
50.6k32169215
50.6k32169215
2
I tried doing that. The issue with this is that it doesn't give a proper out. 1. The audio tracks are muddled. 2. There is some disturbance in the video track.
– Dhruv Singal
Jun 16 '15 at 11:26
I used it for more than sample, the result is high quality, maybe your source video quality is the problem?
– Maythux
Jun 17 '15 at 5:58
You are probably right. This solved the issue: askubuntu.com/a/637179/420614
– Dhruv Singal
Jun 18 '15 at 4:18
1
Don't use the concat protocol to concatenate MP4. It only works with certain formats that most general users don't encounter. Use concat demuxer or concat filter instead.
– llogan
Nov 17 '17 at 18:11
I tried ffmpeg with 2 mp4 files of 30min each. I got an output file with length 7 hours.
– Guus
Jul 3 '18 at 14:33
add a comment |
2
I tried doing that. The issue with this is that it doesn't give a proper out. 1. The audio tracks are muddled. 2. There is some disturbance in the video track.
– Dhruv Singal
Jun 16 '15 at 11:26
I used it for more than sample, the result is high quality, maybe your source video quality is the problem?
– Maythux
Jun 17 '15 at 5:58
You are probably right. This solved the issue: askubuntu.com/a/637179/420614
– Dhruv Singal
Jun 18 '15 at 4:18
1
Don't use the concat protocol to concatenate MP4. It only works with certain formats that most general users don't encounter. Use concat demuxer or concat filter instead.
– llogan
Nov 17 '17 at 18:11
I tried ffmpeg with 2 mp4 files of 30min each. I got an output file with length 7 hours.
– Guus
Jul 3 '18 at 14:33
2
2
I tried doing that. The issue with this is that it doesn't give a proper out. 1. The audio tracks are muddled. 2. There is some disturbance in the video track.
– Dhruv Singal
Jun 16 '15 at 11:26
I tried doing that. The issue with this is that it doesn't give a proper out. 1. The audio tracks are muddled. 2. There is some disturbance in the video track.
– Dhruv Singal
Jun 16 '15 at 11:26
I used it for more than sample, the result is high quality, maybe your source video quality is the problem?
– Maythux
Jun 17 '15 at 5:58
I used it for more than sample, the result is high quality, maybe your source video quality is the problem?
– Maythux
Jun 17 '15 at 5:58
You are probably right. This solved the issue: askubuntu.com/a/637179/420614
– Dhruv Singal
Jun 18 '15 at 4:18
You are probably right. This solved the issue: askubuntu.com/a/637179/420614
– Dhruv Singal
Jun 18 '15 at 4:18
1
1
Don't use the concat protocol to concatenate MP4. It only works with certain formats that most general users don't encounter. Use concat demuxer or concat filter instead.
– llogan
Nov 17 '17 at 18:11
Don't use the concat protocol to concatenate MP4. It only works with certain formats that most general users don't encounter. Use concat demuxer or concat filter instead.
– llogan
Nov 17 '17 at 18:11
I tried ffmpeg with 2 mp4 files of 30min each. I got an output file with length 7 hours.
– Guus
Jul 3 '18 at 14:33
I tried ffmpeg with 2 mp4 files of 30min each. I got an output file with length 7 hours.
– Guus
Jul 3 '18 at 14:33
add a comment |
5
This solved the matter:
https://stackoverflow.com/a/22324018/5014767
melt is a great command line utility for this.
Here is the page
Edit from comments: The command which solved my problem was this
melt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264
edited May 23 '17 at 12:39
Community♦
1
answered Jun 16 '15 at 14:16
Dhruv SingalDhruv Singal
1611110
add a comment |
5
This solved the matter:
https://stackoverflow.com/a/22324018/5014767
melt is a great command line utility for this.
Here is the page
Edit from comments: The command which solved my problem was this
melt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264
edited May 23 '17 at 12:39
Community♦
1
answered Jun 16 '15 at 14:16
Dhruv SingalDhruv Singal
1611110
add a comment |
5
5
5
This solved the matter:
https://stackoverflow.com/a/22324018/5014767
melt is a great command line utility for this.
Here is the page
Edit from comments: The command which solved my problem was this
melt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264
edited May 23 '17 at 12:39
Community♦
1
answered Jun 16 '15 at 14:16
Dhruv SingalDhruv Singal
1611110
This solved the matter:
https://stackoverflow.com/a/22324018/5014767
melt is a great command line utility for this.
Here is the page
Edit from comments: The command which solved my problem was this
melt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264
edited May 23 '17 at 12:39
Community♦
1
answered Jun 16 '15 at 14:16
Dhruv SingalDhruv Singal
1611110
edited May 23 '17 at 12:39
Community♦
1
edited May 23 '17 at 12:39
Community♦
1
edited May 23 '17 at 12:39
Community♦
1
1
answered Jun 16 '15 at 14:16
Dhruv SingalDhruv Singal
1611110
answered Jun 16 '15 at 14:16
Dhruv SingalDhruv Singal
1611110
answered Jun 16 '15 at 14:16
Dhruv SingalDhruv Singal
1611110
1611110
add a comment |
add a comment |
3
I wrote a little shell script to concat MP4s without transcoding using ffmpeg.
for f in $(ls *.MP4); do
ffmpeg -i $f -c copy -bsf:v h264_mp4toannexb -f mpegts $f.ts
done
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")
ffmpeg -i "concat:$CONCAT" -c copy -bsf:a aac_adtstoasc output.mp4
rm *.ts
This creates intermediate files in an MPEG container and then concatenates them into an MP4.
answered Apr 7 '18 at 20:26
RawwrBagRawwrBag
1313
It's important to note that this script will fail if any of the filenames contain spaces or, in some cases, special characters. For the loop, it's significantly better to use justfor f in *.MP4without usingls. (You should always avoid usinglsin scripts for a couple of important reasons; there are better options.) Also, use quotes for variables unless you are certain that there are no spaces or other special characters, so"${f}"(or just"$f") instead of unquoted$f.
– Paddy Landau
Jun 14 '18 at 14:11
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")doesn't work well with file names that are 1, 2, 3... 10... 20. It ends up parsing them as 1, 10... 2, 20... etc. I suggestCONCAT=$(echo $(ls -v *.ts) | sed -e "s/ /|/g")this will ensure order.
– tisaconundrum
Nov 16 '18 at 8:05
add a comment |
3
I wrote a little shell script to concat MP4s without transcoding using ffmpeg.
for f in $(ls *.MP4); do
ffmpeg -i $f -c copy -bsf:v h264_mp4toannexb -f mpegts $f.ts
done
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")
ffmpeg -i "concat:$CONCAT" -c copy -bsf:a aac_adtstoasc output.mp4
rm *.ts
This creates intermediate files in an MPEG container and then concatenates them into an MP4.
answered Apr 7 '18 at 20:26
RawwrBagRawwrBag
1313
It's important to note that this script will fail if any of the filenames contain spaces or, in some cases, special characters. For the loop, it's significantly better to use justfor f in *.MP4without usingls. (You should always avoid usinglsin scripts for a couple of important reasons; there are better options.) Also, use quotes for variables unless you are certain that there are no spaces or other special characters, so"${f}"(or just"$f") instead of unquoted$f.
– Paddy Landau
Jun 14 '18 at 14:11
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")doesn't work well with file names that are 1, 2, 3... 10... 20. It ends up parsing them as 1, 10... 2, 20... etc. I suggestCONCAT=$(echo $(ls -v *.ts) | sed -e "s/ /|/g")this will ensure order.
– tisaconundrum
Nov 16 '18 at 8:05
add a comment |
3
3
3
I wrote a little shell script to concat MP4s without transcoding using ffmpeg.
for f in $(ls *.MP4); do
ffmpeg -i $f -c copy -bsf:v h264_mp4toannexb -f mpegts $f.ts
done
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")
ffmpeg -i "concat:$CONCAT" -c copy -bsf:a aac_adtstoasc output.mp4
rm *.ts
This creates intermediate files in an MPEG container and then concatenates them into an MP4.
answered Apr 7 '18 at 20:26
RawwrBagRawwrBag
1313
I wrote a little shell script to concat MP4s without transcoding using ffmpeg.
for f in $(ls *.MP4); do
ffmpeg -i $f -c copy -bsf:v h264_mp4toannexb -f mpegts $f.ts
done
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")
ffmpeg -i "concat:$CONCAT" -c copy -bsf:a aac_adtstoasc output.mp4
rm *.ts
This creates intermediate files in an MPEG container and then concatenates them into an MP4.
answered Apr 7 '18 at 20:26
RawwrBagRawwrBag
1313
answered Apr 7 '18 at 20:26
RawwrBagRawwrBag
1313
answered Apr 7 '18 at 20:26
RawwrBagRawwrBag
1313
answered Apr 7 '18 at 20:26
RawwrBagRawwrBag
1313
1313
It's important to note that this script will fail if any of the filenames contain spaces or, in some cases, special characters. For the loop, it's significantly better to use justfor f in *.MP4without usingls. (You should always avoid usinglsin scripts for a couple of important reasons; there are better options.) Also, use quotes for variables unless you are certain that there are no spaces or other special characters, so"${f}"(or just"$f") instead of unquoted$f.
– Paddy Landau
Jun 14 '18 at 14:11
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")doesn't work well with file names that are 1, 2, 3... 10... 20. It ends up parsing them as 1, 10... 2, 20... etc. I suggestCONCAT=$(echo $(ls -v *.ts) | sed -e "s/ /|/g")this will ensure order.
– tisaconundrum
Nov 16 '18 at 8:05
add a comment |
It's important to note that this script will fail if any of the filenames contain spaces or, in some cases, special characters. For the loop, it's significantly better to use justfor f in *.MP4without usingls. (You should always avoid usinglsin scripts for a couple of important reasons; there are better options.) Also, use quotes for variables unless you are certain that there are no spaces or other special characters, so"${f}"(or just"$f") instead of unquoted$f.
– Paddy Landau
Jun 14 '18 at 14:11
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g")doesn't work well with file names that are 1, 2, 3... 10... 20. It ends up parsing them as 1, 10... 2, 20... etc. I suggestCONCAT=$(echo $(ls -v *.ts) | sed -e "s/ /|/g")this will ensure order.
– tisaconundrum
Nov 16 '18 at 8:05
It's important to note that this script will fail if any of the filenames contain spaces or, in some cases, special characters. For the loop, it's significantly better to use just
for f in *.MP4 without using ls. (You should always avoid using ls in scripts for a couple of important reasons; there are better options.) Also, use quotes for variables unless you are certain that there are no spaces or other special characters, so "${f}" (or just "$f") instead of unquoted $f.– Paddy Landau
Jun 14 '18 at 14:11
It's important to note that this script will fail if any of the filenames contain spaces or, in some cases, special characters. For the loop, it's significantly better to use just
for f in *.MP4 without using ls. (You should always avoid using ls in scripts for a couple of important reasons; there are better options.) Also, use quotes for variables unless you are certain that there are no spaces or other special characters, so "${f}" (or just "$f") instead of unquoted $f.– Paddy Landau
Jun 14 '18 at 14:11
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g") doesn't work well with file names that are 1, 2, 3... 10... 20. It ends up parsing them as 1, 10... 2, 20... etc. I suggest CONCAT=$(echo $(ls -v *.ts) | sed -e "s/ /|/g") this will ensure order.– tisaconundrum
Nov 16 '18 at 8:05
CONCAT=$(echo $(ls *.ts) | sed -e "s/ /|/g") doesn't work well with file names that are 1, 2, 3... 10... 20. It ends up parsing them as 1, 10... 2, 20... etc. I suggest CONCAT=$(echo $(ls -v *.ts) | sed -e "s/ /|/g") this will ensure order.– tisaconundrum
Nov 16 '18 at 8:05
add a comment |
0
My script, purely in bash and ffmpeg. Re-encodes files given on a command line into one.
Requires the files to be of the same resolution. Accepts different metadata rotation, which ffmpeg concat: doesn't.
rm ffmpeg-concat-output.mkv
FILE_COUNT=$#
INPUTS=""
FILTER=""
INDEX=0
for FNAME in $@; do
echo "Processing ${FNAME}"
INPUTS="${INPUTS} -i $FNAME"
if [ -z "${FILTER}" ]; then
FILTER="[$INDEX:v:0] [$INDEX:a:0]"
else
FILTER="${FILTER} [$INDEX:v:0] [$INDEX:a:0]"
fi
let INDEX+=1
done
COMMAND="ffmpeg ${INPUTS}
-filter_complex '${FILTER}
concat=n=${INDEX}:v=1:a=1 [v] [a]'
-map '[v]' -map '[a]'
ffmpeg-concat-output.mkv"
# -af 'volume=15dB' # won't work with -filter_complex
bash -c "${COMMAND}"
edited Nov 17 '17 at 10:19
derHugo
2,29021429
answered Jun 5 '17 at 5:45
Victor SergienkoVictor Sergienko
4221616
add a comment |
0
My script, purely in bash and ffmpeg. Re-encodes files given on a command line into one.
Requires the files to be of the same resolution. Accepts different metadata rotation, which ffmpeg concat: doesn't.
rm ffmpeg-concat-output.mkv
FILE_COUNT=$#
INPUTS=""
FILTER=""
INDEX=0
for FNAME in $@; do
echo "Processing ${FNAME}"
INPUTS="${INPUTS} -i $FNAME"
if [ -z "${FILTER}" ]; then
FILTER="[$INDEX:v:0] [$INDEX:a:0]"
else
FILTER="${FILTER} [$INDEX:v:0] [$INDEX:a:0]"
fi
let INDEX+=1
done
COMMAND="ffmpeg ${INPUTS}
-filter_complex '${FILTER}
concat=n=${INDEX}:v=1:a=1 [v] [a]'
-map '[v]' -map '[a]'
ffmpeg-concat-output.mkv"
# -af 'volume=15dB' # won't work with -filter_complex
bash -c "${COMMAND}"
edited Nov 17 '17 at 10:19
derHugo
2,29021429
answered Jun 5 '17 at 5:45
Victor SergienkoVictor Sergienko
4221616
add a comment |
0
0
0
My script, purely in bash and ffmpeg. Re-encodes files given on a command line into one.
Requires the files to be of the same resolution. Accepts different metadata rotation, which ffmpeg concat: doesn't.
rm ffmpeg-concat-output.mkv
FILE_COUNT=$#
INPUTS=""
FILTER=""
INDEX=0
for FNAME in $@; do
echo "Processing ${FNAME}"
INPUTS="${INPUTS} -i $FNAME"
if [ -z "${FILTER}" ]; then
FILTER="[$INDEX:v:0] [$INDEX:a:0]"
else
FILTER="${FILTER} [$INDEX:v:0] [$INDEX:a:0]"
fi
let INDEX+=1
done
COMMAND="ffmpeg ${INPUTS}
-filter_complex '${FILTER}
concat=n=${INDEX}:v=1:a=1 [v] [a]'
-map '[v]' -map '[a]'
ffmpeg-concat-output.mkv"
# -af 'volume=15dB' # won't work with -filter_complex
bash -c "${COMMAND}"
edited Nov 17 '17 at 10:19
derHugo
2,29021429
answered Jun 5 '17 at 5:45
Victor SergienkoVictor Sergienko
4221616
My script, purely in bash and ffmpeg. Re-encodes files given on a command line into one.
Requires the files to be of the same resolution. Accepts different metadata rotation, which ffmpeg concat: doesn't.
rm ffmpeg-concat-output.mkv
FILE_COUNT=$#
INPUTS=""
FILTER=""
INDEX=0
for FNAME in $@; do
echo "Processing ${FNAME}"
INPUTS="${INPUTS} -i $FNAME"
if [ -z "${FILTER}" ]; then
FILTER="[$INDEX:v:0] [$INDEX:a:0]"
else
FILTER="${FILTER} [$INDEX:v:0] [$INDEX:a:0]"
fi
let INDEX+=1
done
COMMAND="ffmpeg ${INPUTS}
-filter_complex '${FILTER}
concat=n=${INDEX}:v=1:a=1 [v] [a]'
-map '[v]' -map '[a]'
ffmpeg-concat-output.mkv"
# -af 'volume=15dB' # won't work with -filter_complex
bash -c "${COMMAND}"
edited Nov 17 '17 at 10:19
derHugo
2,29021429
answered Jun 5 '17 at 5:45
Victor SergienkoVictor Sergienko
4221616
edited Nov 17 '17 at 10:19
derHugo
2,29021429
edited Nov 17 '17 at 10:19
derHugo
2,29021429
edited Nov 17 '17 at 10:19
derHugo
2,29021429
2,29021429
answered Jun 5 '17 at 5:45
Victor SergienkoVictor Sergienko
4221616
answered Jun 5 '17 at 5:45
Victor SergienkoVictor Sergienko
4221616
answered Jun 5 '17 at 5:45
Victor SergienkoVictor Sergienko
4221616
4221616
add a comment |
add a comment |
0
I created a Python script that, using moviepy, can concatenate also subsegments (useful if you want for example remove some parts from a video).
Use it with:
vcat -i inputfile1,inputfile2[start-end],... -o <outputfile>
answered Jan 2 at 16:37
AntonelloAntonello
314317
add a comment |
0
I created a Python script that, using moviepy, can concatenate also subsegments (useful if you want for example remove some parts from a video).
Use it with:
vcat -i inputfile1,inputfile2[start-end],... -o <outputfile>
answered Jan 2 at 16:37
AntonelloAntonello
314317
add a comment |
0
0
0
I created a Python script that, using moviepy, can concatenate also subsegments (useful if you want for example remove some parts from a video).
Use it with:
vcat -i inputfile1,inputfile2[start-end],... -o <outputfile>
answered Jan 2 at 16:37
AntonelloAntonello
314317
I created a Python script that, using moviepy, can concatenate also subsegments (useful if you want for example remove some parts from a video).
Use it with:
vcat -i inputfile1,inputfile2[start-end],... -o <outputfile>
answered Jan 2 at 16:37
AntonelloAntonello
314317
answered Jan 2 at 16:37
AntonelloAntonello
314317
answered Jan 2 at 16:37
AntonelloAntonello
314317
answered Jan 2 at 16:37
AntonelloAntonello
314317
314317
add a comment |
add a comment |
-1
In addition to Maythux's answer, from :
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate video by merely concatenating the files containing them.
I.e. the videos to be concatenated use one of the abovementioned video containers (to which I'll add MPEG-4 Part 14 for personal experience), you could simply:
cat video1.ext video2.ext video3.ext > video4.ext
edited Jun 17 '15 at 6:00
Maythux
50.6k32169215
answered Jun 16 '15 at 10:49
koskos
25.4k870120
1
I tried this but it only returns the first video as the output. I read somewhere that it doesn't work, though I don't remember the rationale behind this.
– Dhruv Singal
Jun 16 '15 at 11:28
@DhruvSingal Yes, I can confirm this, I've tried this on two MP4 videos with the exact same video / audio encoding and as you I could only browse through the first video. Which seems reasonable, however I'm pretty sure that I've done this before once with a couple of MP4 videos. Perhaps the memory isn't serving well here, or there are other requirements for this to work. I want to research on this since I'm interested also, if I find something I'll update the answer and drop you a comment
– kos
Jun 16 '15 at 11:45
We somehow need to change the metadata at the start of the first video to encompass the entire length of the combined movie, and other stuff probably. Only a few mpeg4 files let me see the metadata..
– Ken Mollerup
Oct 22 '15 at 14:55
add a comment |
-1
In addition to Maythux's answer, from :
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate video by merely concatenating the files containing them.
I.e. the videos to be concatenated use one of the abovementioned video containers (to which I'll add MPEG-4 Part 14 for personal experience), you could simply:
cat video1.ext video2.ext video3.ext > video4.ext
edited Jun 17 '15 at 6:00
Maythux
50.6k32169215
answered Jun 16 '15 at 10:49
koskos
25.4k870120
1
I tried this but it only returns the first video as the output. I read somewhere that it doesn't work, though I don't remember the rationale behind this.
– Dhruv Singal
Jun 16 '15 at 11:28
@DhruvSingal Yes, I can confirm this, I've tried this on two MP4 videos with the exact same video / audio encoding and as you I could only browse through the first video. Which seems reasonable, however I'm pretty sure that I've done this before once with a couple of MP4 videos. Perhaps the memory isn't serving well here, or there are other requirements for this to work. I want to research on this since I'm interested also, if I find something I'll update the answer and drop you a comment
– kos
Jun 16 '15 at 11:45
We somehow need to change the metadata at the start of the first video to encompass the entire length of the combined movie, and other stuff probably. Only a few mpeg4 files let me see the metadata..
– Ken Mollerup
Oct 22 '15 at 14:55
add a comment |
-1
-1
-1
In addition to Maythux's answer, from :
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate video by merely concatenating the files containing them.
I.e. the videos to be concatenated use one of the abovementioned video containers (to which I'll add MPEG-4 Part 14 for personal experience), you could simply:
cat video1.ext video2.ext video3.ext > video4.ext
edited Jun 17 '15 at 6:00
Maythux
50.6k32169215
answered Jun 16 '15 at 10:49
koskos
25.4k870120
In addition to Maythux's answer, from :
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate video by merely concatenating the files containing them.
I.e. the videos to be concatenated use one of the abovementioned video containers (to which I'll add MPEG-4 Part 14 for personal experience), you could simply:
cat video1.ext video2.ext video3.ext > video4.ext
edited Jun 17 '15 at 6:00
Maythux
50.6k32169215
answered Jun 16 '15 at 10:49
koskos
25.4k870120
edited Jun 17 '15 at 6:00
Maythux
50.6k32169215
edited Jun 17 '15 at 6:00
Maythux
50.6k32169215
edited Jun 17 '15 at 6:00
Maythux
50.6k32169215
50.6k32169215
answered Jun 16 '15 at 10:49
koskos
25.4k870120
answered Jun 16 '15 at 10:49
koskos
25.4k870120
answered Jun 16 '15 at 10:49
koskos
25.4k870120
25.4k870120
1
I tried this but it only returns the first video as the output. I read somewhere that it doesn't work, though I don't remember the rationale behind this.
– Dhruv Singal
Jun 16 '15 at 11:28
@DhruvSingal Yes, I can confirm this, I've tried this on two MP4 videos with the exact same video / audio encoding and as you I could only browse through the first video. Which seems reasonable, however I'm pretty sure that I've done this before once with a couple of MP4 videos. Perhaps the memory isn't serving well here, or there are other requirements for this to work. I want to research on this since I'm interested also, if I find something I'll update the answer and drop you a comment
– kos
Jun 16 '15 at 11:45
We somehow need to change the metadata at the start of the first video to encompass the entire length of the combined movie, and other stuff probably. Only a few mpeg4 files let me see the metadata..
– Ken Mollerup
Oct 22 '15 at 14:55
add a comment |
1
I tried this but it only returns the first video as the output. I read somewhere that it doesn't work, though I don't remember the rationale behind this.
– Dhruv Singal
Jun 16 '15 at 11:28
@DhruvSingal Yes, I can confirm this, I've tried this on two MP4 videos with the exact same video / audio encoding and as you I could only browse through the first video. Which seems reasonable, however I'm pretty sure that I've done this before once with a couple of MP4 videos. Perhaps the memory isn't serving well here, or there are other requirements for this to work. I want to research on this since I'm interested also, if I find something I'll update the answer and drop you a comment
– kos
Jun 16 '15 at 11:45
We somehow need to change the metadata at the start of the first video to encompass the entire length of the combined movie, and other stuff probably. Only a few mpeg4 files let me see the metadata..
– Ken Mollerup
Oct 22 '15 at 14:55
1
1
I tried this but it only returns the first video as the output. I read somewhere that it doesn't work, though I don't remember the rationale behind this.
– Dhruv Singal
Jun 16 '15 at 11:28
I tried this but it only returns the first video as the output. I read somewhere that it doesn't work, though I don't remember the rationale behind this.
– Dhruv Singal
Jun 16 '15 at 11:28
@DhruvSingal Yes, I can confirm this, I've tried this on two MP4 videos with the exact same video / audio encoding and as you I could only browse through the first video. Which seems reasonable, however I'm pretty sure that I've done this before once with a couple of MP4 videos. Perhaps the memory isn't serving well here, or there are other requirements for this to work. I want to research on this since I'm interested also, if I find something I'll update the answer and drop you a comment
– kos
Jun 16 '15 at 11:45
@DhruvSingal Yes, I can confirm this, I've tried this on two MP4 videos with the exact same video / audio encoding and as you I could only browse through the first video. Which seems reasonable, however I'm pretty sure that I've done this before once with a couple of MP4 videos. Perhaps the memory isn't serving well here, or there are other requirements for this to work. I want to research on this since I'm interested also, if I find something I'll update the answer and drop you a comment
– kos
Jun 16 '15 at 11:45
We somehow need to change the metadata at the start of the first video to encompass the entire length of the combined movie, and other stuff probably. Only a few mpeg4 files let me see the metadata..
– Ken Mollerup
Oct 22 '15 at 14:55
We somehow need to change the metadata at the start of the first video to encompass the entire length of the combined movie, and other stuff probably. Only a few mpeg4 files let me see the metadata..
– Ken Mollerup
Oct 22 '15 at 14:55
add a comment |
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2
Please don't ask same question in multi SE sites: superuser.com/questions/928548/…
– Maythux
Jun 16 '15 at 10:25
Could you post specifically what you've tried so far?
– ohaal
Jun 16 '15 at 14:18
@ohaal I tried using various concatenation methods given in
ffmpeg, including filters and file protocols. I also tried using theconcatfeature ofcvlc/vlc. I also tried theconcatfeature ofmencoder. All of these worked partially. This finally helped me solve the matter.– Dhruv Singal
Jun 18 '15 at 4:25
Yes, you already mentioned the tools, what I meant was the actual commands you ran. Also it would be great if you could include the command that ended up solving it for you (in your answer), for future visitors.
– ohaal
Jun 18 '15 at 7:18
Aah, I see your point. Unfortunately, I can't list the commands due to the sheer number. The command which solved my problem was this
melt {input-sequence} -consumer avformat:{output-name} acodec=libmp3lame vcodec=libx264– Dhruv Singal
Jun 19 '15 at 7:14