How do I extract only certain parts of ffmpeg's standard output as it processes a file?
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I want to enter a command that only shows these two lines of ffmpeg's output and I want to see it as it processes a file:
from 'input_file.mkv':
frame=172534 fps=4622 q=-1.0 Lsize= 8319963kB time=01:59:56.17 bitrate=9471.3kbits/s speed= 193x
This command gives the output I want but frame, fps, etc. only displays after the process has completed.
ffmpeg -i input_file.mkv output.mp4 2>&1 >/dev/null | grep -E -o '(from .*)|((frame=).*)'
How can I display the info I want (and only that info) while it's processing?
Background
That's as far as I've gotten by digging online. I don't see any ffmpeg options to filter out as much as I want and the other questions I'm seeing don't seem to fit what I'm looking for. (Most of what I'm seeing are questions about extracting info from a video file or controlling output in a python script that does other things)
sed grep terminal osx ffmpeg
asked Feb 18 at 19:01
mrgnwmrgnw
161118
add a comment |
I want to enter a command that only shows these two lines of ffmpeg's output and I want to see it as it processes a file:
from 'input_file.mkv':
frame=172534 fps=4622 q=-1.0 Lsize= 8319963kB time=01:59:56.17 bitrate=9471.3kbits/s speed= 193x
This command gives the output I want but frame, fps, etc. only displays after the process has completed.
ffmpeg -i input_file.mkv output.mp4 2>&1 >/dev/null | grep -E -o '(from .*)|((frame=).*)'
How can I display the info I want (and only that info) while it's processing?
Background
That's as far as I've gotten by digging online. I don't see any ffmpeg options to filter out as much as I want and the other questions I'm seeing don't seem to fit what I'm looking for. (Most of what I'm seeing are questions about extracting info from a video file or controlling output in a python script that does other things)
sed grep terminal osx ffmpeg
asked Feb 18 at 19:01
mrgnwmrgnw
161118
some flavors ofgrephave a--line-bufferedoption among other ways of fiddling with that
– thrig
Feb 18 at 19:04
1
See -progress option.
– Gyan
Feb 18 at 19:36
add a comment |
I want to enter a command that only shows these two lines of ffmpeg's output and I want to see it as it processes a file:
from 'input_file.mkv':
frame=172534 fps=4622 q=-1.0 Lsize= 8319963kB time=01:59:56.17 bitrate=9471.3kbits/s speed= 193x
This command gives the output I want but frame, fps, etc. only displays after the process has completed.
ffmpeg -i input_file.mkv output.mp4 2>&1 >/dev/null | grep -E -o '(from .*)|((frame=).*)'
How can I display the info I want (and only that info) while it's processing?
Background
That's as far as I've gotten by digging online. I don't see any ffmpeg options to filter out as much as I want and the other questions I'm seeing don't seem to fit what I'm looking for. (Most of what I'm seeing are questions about extracting info from a video file or controlling output in a python script that does other things)
sed grep terminal osx ffmpeg
asked Feb 18 at 19:01
mrgnwmrgnw
161118
I want to enter a command that only shows these two lines of ffmpeg's output and I want to see it as it processes a file:
from 'input_file.mkv':
frame=172534 fps=4622 q=-1.0 Lsize= 8319963kB time=01:59:56.17 bitrate=9471.3kbits/s speed= 193x
This command gives the output I want but frame, fps, etc. only displays after the process has completed.
ffmpeg -i input_file.mkv output.mp4 2>&1 >/dev/null | grep -E -o '(from .*)|((frame=).*)'
How can I display the info I want (and only that info) while it's processing?
Background
That's as far as I've gotten by digging online. I don't see any ffmpeg options to filter out as much as I want and the other questions I'm seeing don't seem to fit what I'm looking for. (Most of what I'm seeing are questions about extracting info from a video file or controlling output in a python script that does other things)
sed grep terminal osx ffmpeg
sed grep terminal osx ffmpeg
asked Feb 18 at 19:01
mrgnwmrgnw
161118
asked Feb 18 at 19:01
mrgnwmrgnw
161118
asked Feb 18 at 19:01
mrgnwmrgnw
161118
asked Feb 18 at 19:01
mrgnwmrgnw
161118
asked Feb 18 at 19:01
mrgnwmrgnw
161118
161118
some flavors ofgrephave a--line-bufferedoption among other ways of fiddling with that
– thrig
Feb 18 at 19:04
1
See -progress option.
– Gyan
Feb 18 at 19:36
add a comment |
some flavors ofgrephave a--line-bufferedoption among other ways of fiddling with that
– thrig
Feb 18 at 19:04
1
See -progress option.
– Gyan
Feb 18 at 19:36
some flavors of
grep have a --line-buffered option among other ways of fiddling with that– thrig
Feb 18 at 19:04
some flavors of
grep have a --line-buffered option among other ways of fiddling with that– thrig
Feb 18 at 19:04
1
1
See -progress option.
– Gyan
Feb 18 at 19:36
See -progress option.
– Gyan
Feb 18 at 19:36
add a comment |
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some flavors of
grephave a--line-bufferedoption among other ways of fiddling with that– thrig
Feb 18 at 19:04
1
See -progress option.
– Gyan
Feb 18 at 19:36