Using ffmpeg on how do I copy the video and multiple subtitle streams in an MKV and reencode multiple audio...
I have a video file in MKV format. I like the quality of the video, but I dislike having the audio in FLAC format since I decided it takes up too much space.
It is a dual audio file—it’s an anime with Japanese and English audio—and it has several subtitle streams inside as well.
This is the command I use:
ffmpeg -i "01.mkv" -c:v copy -c:a ac3 -c:s copy "test.mkv"
However it only gets the first audio and first subtitle string. I need help with the map option for multiple streams.
audio video ffmpeg
edited Jan 6 at 21:13
xpt
3,126115388
asked Dec 2 '17 at 22:29
Jason MurrayJason Murray
5115
|
show 1 more comment
I have a video file in MKV format. I like the quality of the video, but I dislike having the audio in FLAC format since I decided it takes up too much space.
It is a dual audio file—it’s an anime with Japanese and English audio—and it has several subtitle streams inside as well.
This is the command I use:
ffmpeg -i "01.mkv" -c:v copy -c:a ac3 -c:s copy "test.mkv"
However it only gets the first audio and first subtitle string. I need help with the map option for multiple streams.
audio video ffmpeg
edited Jan 6 at 21:13
xpt
3,126115388
asked Dec 2 '17 at 22:29
Jason MurrayJason Murray
5115
What is the problem with the command you currently have? I suspect you need a-map 0:a? -map 0:s? -map 0:vbefore your-c:v, but apart from that it looks okay to me.
– Mokubai♦
Dec 2 '17 at 22:51
Right now it only gets the first audio and first subtitle string. I will attempt with the map option. I read about it, but I couldn't quite understand how to use it. Would it look like this then?ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"
– Jason Murray
Dec 2 '17 at 22:54
Look at the answers here if you haven’t already.
– JakeGould
Dec 2 '17 at 22:56
Yes, give that a shot. I'm still getting to grips with ffmpeg myself, but the map command is used to tell it that you definitely want those things to be pulled through to the output.-map 0:a:1would specify only to copy audio stream number 1, while-map 0:a?should effectively wildcard it and copy them all.
– Mokubai♦
Dec 2 '17 at 23:05
Just encoded my test file and it seems to have worked perfectly! Thanks! Now to do the part I have no idea about, which is to write a bash script. But that is for another question. Thanks again!
– Jason Murray
Dec 2 '17 at 23:07
|
show 1 more comment
I have a video file in MKV format. I like the quality of the video, but I dislike having the audio in FLAC format since I decided it takes up too much space.
It is a dual audio file—it’s an anime with Japanese and English audio—and it has several subtitle streams inside as well.
This is the command I use:
ffmpeg -i "01.mkv" -c:v copy -c:a ac3 -c:s copy "test.mkv"
However it only gets the first audio and first subtitle string. I need help with the map option for multiple streams.
audio video ffmpeg
edited Jan 6 at 21:13
xpt
3,126115388
asked Dec 2 '17 at 22:29
Jason MurrayJason Murray
5115
I have a video file in MKV format. I like the quality of the video, but I dislike having the audio in FLAC format since I decided it takes up too much space.
It is a dual audio file—it’s an anime with Japanese and English audio—and it has several subtitle streams inside as well.
This is the command I use:
ffmpeg -i "01.mkv" -c:v copy -c:a ac3 -c:s copy "test.mkv"
However it only gets the first audio and first subtitle string. I need help with the map option for multiple streams.
audio video ffmpeg
audio video ffmpeg
edited Jan 6 at 21:13
xpt
3,126115388
asked Dec 2 '17 at 22:29
Jason MurrayJason Murray
5115
edited Jan 6 at 21:13
xpt
3,126115388
asked Dec 2 '17 at 22:29
Jason MurrayJason Murray
5115
edited Jan 6 at 21:13
xpt
3,126115388
edited Jan 6 at 21:13
xpt
3,126115388
edited Jan 6 at 21:13
xpt
3,126115388
3,126115388
asked Dec 2 '17 at 22:29
Jason MurrayJason Murray
5115
asked Dec 2 '17 at 22:29
Jason MurrayJason Murray
5115
asked Dec 2 '17 at 22:29
Jason MurrayJason Murray
5115
5115
What is the problem with the command you currently have? I suspect you need a-map 0:a? -map 0:s? -map 0:vbefore your-c:v, but apart from that it looks okay to me.
– Mokubai♦
Dec 2 '17 at 22:51
Right now it only gets the first audio and first subtitle string. I will attempt with the map option. I read about it, but I couldn't quite understand how to use it. Would it look like this then?ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"
– Jason Murray
Dec 2 '17 at 22:54
Look at the answers here if you haven’t already.
– JakeGould
Dec 2 '17 at 22:56
Yes, give that a shot. I'm still getting to grips with ffmpeg myself, but the map command is used to tell it that you definitely want those things to be pulled through to the output.-map 0:a:1would specify only to copy audio stream number 1, while-map 0:a?should effectively wildcard it and copy them all.
– Mokubai♦
Dec 2 '17 at 23:05
Just encoded my test file and it seems to have worked perfectly! Thanks! Now to do the part I have no idea about, which is to write a bash script. But that is for another question. Thanks again!
– Jason Murray
Dec 2 '17 at 23:07
|
show 1 more comment
What is the problem with the command you currently have? I suspect you need a-map 0:a? -map 0:s? -map 0:vbefore your-c:v, but apart from that it looks okay to me.
– Mokubai♦
Dec 2 '17 at 22:51
Right now it only gets the first audio and first subtitle string. I will attempt with the map option. I read about it, but I couldn't quite understand how to use it. Would it look like this then?ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"
– Jason Murray
Dec 2 '17 at 22:54
Look at the answers here if you haven’t already.
– JakeGould
Dec 2 '17 at 22:56
Yes, give that a shot. I'm still getting to grips with ffmpeg myself, but the map command is used to tell it that you definitely want those things to be pulled through to the output.-map 0:a:1would specify only to copy audio stream number 1, while-map 0:a?should effectively wildcard it and copy them all.
– Mokubai♦
Dec 2 '17 at 23:05
Just encoded my test file and it seems to have worked perfectly! Thanks! Now to do the part I have no idea about, which is to write a bash script. But that is for another question. Thanks again!
– Jason Murray
Dec 2 '17 at 23:07
What is the problem with the command you currently have? I suspect you need a
-map 0:a? -map 0:s? -map 0:v before your -c:v, but apart from that it looks okay to me.– Mokubai♦
Dec 2 '17 at 22:51
What is the problem with the command you currently have? I suspect you need a
-map 0:a? -map 0:s? -map 0:v before your -c:v, but apart from that it looks okay to me.– Mokubai♦
Dec 2 '17 at 22:51
Right now it only gets the first audio and first subtitle string. I will attempt with the map option. I read about it, but I couldn't quite understand how to use it. Would it look like this then?
ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"– Jason Murray
Dec 2 '17 at 22:54
Right now it only gets the first audio and first subtitle string. I will attempt with the map option. I read about it, but I couldn't quite understand how to use it. Would it look like this then?
ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"– Jason Murray
Dec 2 '17 at 22:54
Look at the answers here if you haven’t already.
– JakeGould
Dec 2 '17 at 22:56
Look at the answers here if you haven’t already.
– JakeGould
Dec 2 '17 at 22:56
Yes, give that a shot. I'm still getting to grips with ffmpeg myself, but the map command is used to tell it that you definitely want those things to be pulled through to the output.
-map 0:a:1 would specify only to copy audio stream number 1, while -map 0:a? should effectively wildcard it and copy them all.– Mokubai♦
Dec 2 '17 at 23:05
Yes, give that a shot. I'm still getting to grips with ffmpeg myself, but the map command is used to tell it that you definitely want those things to be pulled through to the output.
-map 0:a:1 would specify only to copy audio stream number 1, while -map 0:a? should effectively wildcard it and copy them all.– Mokubai♦
Dec 2 '17 at 23:05
Just encoded my test file and it seems to have worked perfectly! Thanks! Now to do the part I have no idea about, which is to write a bash script. But that is for another question. Thanks again!
– Jason Murray
Dec 2 '17 at 23:07
Just encoded my test file and it seems to have worked perfectly! Thanks! Now to do the part I have no idea about, which is to write a bash script. But that is for another question. Thanks again!
– Jason Murray
Dec 2 '17 at 23:07
|
show 1 more comment
1 Answer
1
active
oldest
votes
I believe you need to specify the mapping of the audio and subtitle streams to ensure that all of them are copied through rather than the first. To do so you need to add -map 0:a? -map 0:s? -map 0:v before your -c:v
This should make your command
ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"
The map command is used to tell it that you definitely want those things to be pulled through to the output. -map 0:a:1 would specify only to copy audio stream number 1, while -map 0:a? should effectively wildcard it and copy them all.
answered Dec 2 '17 at 23:09
Mokubai♦Mokubai
56.9k16135153
1
A map expression of the form-map x?tells ffmpeg to select all streams matching x but not throw an error if no matching streams are found. Just-map xwill select all matching streams.
– Gyan
Dec 3 '17 at 4:34
add a comment |
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I believe you need to specify the mapping of the audio and subtitle streams to ensure that all of them are copied through rather than the first. To do so you need to add -map 0:a? -map 0:s? -map 0:v before your -c:v
This should make your command
ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"
The map command is used to tell it that you definitely want those things to be pulled through to the output. -map 0:a:1 would specify only to copy audio stream number 1, while -map 0:a? should effectively wildcard it and copy them all.
answered Dec 2 '17 at 23:09
Mokubai♦Mokubai
56.9k16135153
1
A map expression of the form-map x?tells ffmpeg to select all streams matching x but not throw an error if no matching streams are found. Just-map xwill select all matching streams.
– Gyan
Dec 3 '17 at 4:34
add a comment |
I believe you need to specify the mapping of the audio and subtitle streams to ensure that all of them are copied through rather than the first. To do so you need to add -map 0:a? -map 0:s? -map 0:v before your -c:v
This should make your command
ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"
The map command is used to tell it that you definitely want those things to be pulled through to the output. -map 0:a:1 would specify only to copy audio stream number 1, while -map 0:a? should effectively wildcard it and copy them all.
answered Dec 2 '17 at 23:09
Mokubai♦Mokubai
56.9k16135153
1
A map expression of the form-map x?tells ffmpeg to select all streams matching x but not throw an error if no matching streams are found. Just-map xwill select all matching streams.
– Gyan
Dec 3 '17 at 4:34
add a comment |
I believe you need to specify the mapping of the audio and subtitle streams to ensure that all of them are copied through rather than the first. To do so you need to add -map 0:a? -map 0:s? -map 0:v before your -c:v
This should make your command
ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"
The map command is used to tell it that you definitely want those things to be pulled through to the output. -map 0:a:1 would specify only to copy audio stream number 1, while -map 0:a? should effectively wildcard it and copy them all.
answered Dec 2 '17 at 23:09
Mokubai♦Mokubai
56.9k16135153
I believe you need to specify the mapping of the audio and subtitle streams to ensure that all of them are copied through rather than the first. To do so you need to add -map 0:a? -map 0:s? -map 0:v before your -c:v
This should make your command
ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"
The map command is used to tell it that you definitely want those things to be pulled through to the output. -map 0:a:1 would specify only to copy audio stream number 1, while -map 0:a? should effectively wildcard it and copy them all.
answered Dec 2 '17 at 23:09
Mokubai♦Mokubai
56.9k16135153
answered Dec 2 '17 at 23:09
Mokubai♦Mokubai
56.9k16135153
answered Dec 2 '17 at 23:09
Mokubai♦Mokubai
56.9k16135153
answered Dec 2 '17 at 23:09
Mokubai♦Mokubai
56.9k16135153
56.9k16135153
1
A map expression of the form-map x?tells ffmpeg to select all streams matching x but not throw an error if no matching streams are found. Just-map xwill select all matching streams.
– Gyan
Dec 3 '17 at 4:34
add a comment |
1
A map expression of the form-map x?tells ffmpeg to select all streams matching x but not throw an error if no matching streams are found. Just-map xwill select all matching streams.
– Gyan
Dec 3 '17 at 4:34
1
1
A map expression of the form
-map x? tells ffmpeg to select all streams matching x but not throw an error if no matching streams are found. Just -map x will select all matching streams.– Gyan
Dec 3 '17 at 4:34
A map expression of the form
-map x? tells ffmpeg to select all streams matching x but not throw an error if no matching streams are found. Just -map x will select all matching streams.– Gyan
Dec 3 '17 at 4:34
add a comment |
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What is the problem with the command you currently have? I suspect you need a
-map 0:a? -map 0:s? -map 0:vbefore your-c:v, but apart from that it looks okay to me.– Mokubai♦
Dec 2 '17 at 22:51
Right now it only gets the first audio and first subtitle string. I will attempt with the map option. I read about it, but I couldn't quite understand how to use it. Would it look like this then?
ffmpeg -i "01.mkv" -map 0:a? -map 0:s? -map 0:v -c:v copy -c:a ac3 -c:s copy "test.mkv"– Jason Murray
Dec 2 '17 at 22:54
Look at the answers here if you haven’t already.
– JakeGould
Dec 2 '17 at 22:56
Yes, give that a shot. I'm still getting to grips with ffmpeg myself, but the map command is used to tell it that you definitely want those things to be pulled through to the output.
-map 0:a:1would specify only to copy audio stream number 1, while-map 0:a?should effectively wildcard it and copy them all.– Mokubai♦
Dec 2 '17 at 23:05
Just encoded my test file and it seems to have worked perfectly! Thanks! Now to do the part I have no idea about, which is to write a bash script. But that is for another question. Thanks again!
– Jason Murray
Dec 2 '17 at 23:07