I use the ffmpeg -stats -hide_banner -list_devices true -f dshow -i dummy command to list all video and audio devices, and I need to get all Alternative name From "DirectShow video devices" (just video devices) with batch script.
I'm start with this: ffmpeg output parse in batch script (first answer)
Can someone more experienced to help me with this task? Thanks in advance!
Refer to #Endoro answer here ffmpeg output parse in batch script.
You can tweak it to get only Video Device List
#echo off
Title ffmpeg list video devices with batch script to variables
set "VideoDevice="
#For /f tokens^=1^,2delims^=^" %%a in (
'ffmpeg -stats -hide_banner -list_devices true -f dshow -i dummy 2^>^&1 ^| findstr /c:"Alternative name"'
) do (
if not defined VideoDevice (
set "VideoDevice=%%~b"
)
)
echo Video Device : "%VideoDevice%"
pause
Related
I have started a huge video project which I am trying to automate. So far, I made good progress, but now I am stuck. I have searched in Google and here, in Stack OverFlow for answers, but can’t find the solution to my problem.
For completion I will explain my full project.
First step of my project is to convert all of my files to *.mp4 and in the same run burn my logo and website in the video. I do this with this code:
for %%a in ("*.*") do ffmpeg -i "%%a" -i "C:\Users\PC03\Desktop\Video test\Overlay.png" -filter_complex "[0:v][1:v] overlay" -c:v libx264 -preset medium -crf 23 -c:a aac -b:a 128k "newfiles\%%~na.mp4"
pause
After that, I will place all the video files in their relevant subfolder. This way I have almost a hundred subfolders, with 2 or 3 files in them. Per submap I want a video with an intro (not in the submap) the video’s in the submap, and an outro (not in the submap).
I can do the above with this code:
ffmpeg -f concat -i intro.mp4 -i mylist.txt -outro.png -c copy total.mp4
To automate everything, I have this code to make a mylist.txt file per subfolder:
>output.txt (
echo C:\Users\PC03\Desktop\Video test\vast\intro.mp4
(for %%i in (*.mp4) do #echo file '%%i')
echo C:\Users\PC03\Desktop\Video test\vast\outro.mp4
)
Now the only thing which I have to do is automate the following code:
ffmpeg -f concat -i intro.mp4 -i mylist.txt -outro.png -c copy total.mp4
to go through all the subfolders.
I have made this code:
FOR /R "C:\Users\PC03\Desktop\Video test" %%F IN (.) DO (
> %%F\output.txt (
echo "C:\Users\PC03\Desktop\Video test\vast\intro.mp4"
(for %%i in (*.mp4) do (
#echo file '%%i'
))
echo "C:\Users\PC03\Desktop\Video test\vast\outro.mp4"
)
)
This codes provides me with a mylist.txt file in every subfolder, but the content is not what I want. It takes the content of the parentmap instead of the subfolders. I have a strong feeling that somewhere in this code I have to make another FOR /R but I can’t make it work.
Does someone have a suggestion on how to do this?
The FOR /R will iterate the folders but you try to iterate the *.mp4 files without referring to the currently processed (sub)folder.
#Echo off
Set "Base=C:\Users\PC03\Desktop\Video test"
Set "Ext=*.mp4"
FOR /R "%Base%" %%F IN (.) DO (
PushD "%%F"
if exist "%Ext%" (
> "%%~fF\output.txt" (
echo "%Base%\vast\intro.mp4"
For %%I in (%Ext%) do #echo file '%%~fI'
echo "%Base%\vast\outro.mp4"
)
Echo created "%%~fF\output.txt"
)
PopD
)
I have used the program youtube-dl to download a Youtube playlist, i have chosen to download videos and audios separately, i have now a folder full of videos with their corresponding audios that i wish to merge together with ffmpeg.
I need to do this using a batch script but the problem is that youtube-dl added aleatory letters after the original file's title so the videos doesn't have the same name as their corresponding audio, file names looks like this:
First title in the playlist 5J34JG.mp4
First title in the playlist H3826D.webm
Second title in the playlist 3748JD.mp4
Second title in the playlist 6SHJFZ.webm
How to merge these multiple video/audio files using windows batch script and ffmpeg ?
Edit: I forgot to mention that the .webm files are the audio files and that i have multiple files i can't rename them one by one.
#echo off
setlocal
set "outdir=muxed"
if not exist "%outdir%" md "%outdir%" || exit /b 1
:: Get each mp4 file and call the label to mux with webm file.
for %%A in (*.mp4) do call :mux "%%~A"
exit /b
:mux
setlocal
set "videofile=%~1"
set "name=%~n1"
:: Last token of the name is the pattern to remove.
for %%A in (%name:-=- %) do set "pattern=-%%~A"
:: Remove the pattern from the name.
call set "name=%%name:%pattern%=%%"
:: Get the webm filename.
for %%A in ("%name%-*.webm") do set "audiofile=%%~A"
:: Mux if webm file exist and output file does not exist.
if exist "%audiofile%" if not exist "%outdir%\%name%.mp4" (
ffmpeg -i "%videofile%" -i "%audiofile%" -c copy "%outdir%\%name%.mkv"
)
exit /b
The script will 1st make the output directory to save mp4
files so that the output will not become input.
The main for loop will get each mp4 filename. The :mux
label is called with the mp4 filename as an argument.
The variable videofile stores the mp4 filename and
variable name stores just the name without extension.
The last token of name will be the YTID pattern while a
for loop will set the last token to pattern.
The call set will substitute the pattern with "" from the
name. This will give a name that can used with a wildcard to
find the webm filename. A for loop will get the webm
filename.
If the destination does exist and not the output file, then
ffmpeg will mux the 2 files into an output file.
Output file container format is mkv.
Since I was needing to do something similar, I am posting my shorter code to help others out.
This is for in a subfolder
FOR /F "tokens=*" %%f IN ('dir /b /s F2M\*.mp4') DO ffmpeg -i "%%~dpnxf" -i "%%~dpnf.m4a" -c:v copy -c:a aac -map 0:v:0 -map 1:a:0 "F2M\%%~nf-clean.mp4"
This is for if you're doing it in the same directory
for %%f in (*.mkv) do ffmpeg -i "%%~dpnxf" -i "%%~dpnf.m4a" -c:v copy -c:a copy -map 0:0 -map 0:1 -shortest "%%~nf-remux.mp4"
This is if ffmpeg is not in the same folder
set ffmpeg=C:\ffmpeg.exe
for %%a in (*.mkv) do "%ffmpeg%" -i "%%~dpnxf" -i "%%~dpnf.m4a" -c:v copy -c:a copy -map 0:0 -map 1:0 -shortest "%%~nf-remux.mp4"
Just example codes, not specifically formatted for the OP. Use with caution.
c:
cd c:\ffmpeg\bin
ffmpeg -f dshow -video_size 320x240 -framerate 30 -pixel_format yuv420p -i video="Logitech HD Pro Webcam C910" -t 00:00:10 C:\ffmpeg\bin\video.mp4
ffmpeg -f dshow -i video="Logitech HD Pro Webcam C910" C:\ffmpeg\bin\picture1.jpeg
ffmpeg -f dshow -i video="Logitech HD Pro Webcam C910" C:\ffmpeg\bin\picture2.jpeg
move C:\ffmpeg\bin\picture1.jpeg C:\Users\Owner\Desktop\TestFolder
move C:\ffmpeg\bin\picture2.jpeg C:\Users\Owner\Desktop\TestFolder
move C:\ffmpeg\bin\video.mp4 C:\Users\Owner\Desktop\TestFolder
ren C:\Users\Owner\Desktop\TestFolder\picture1.jpeg Picture-%date:~4,2%-%date:~7,2%-%date:~10,4%_%time:~0,2%h%time:~3,2%m%time:~6,2%s%.jpeg
ren C:\Users\Owner\Desktop\TestFolder\picture2.jpeg Picture-%date:~4,2%-%date:~7,2%-%date:~10,4%_%time:~0,2%h%time:~3,2%m%time:~6,2%s%.jpeg
ren C:\Users\Owner\Desktop\TestFolder\video.mp4 Video-%date:~4,2%-%date:~7,2%-%date:~10,4%_%time:~0,2%h%time:~3,2%m%time:~6,2%s%.mp4
taskkill /im ffmpeg.exe /t /f
I've created a batch file that will take a ten second video and two screenshots from my webcam. My batch file works correctly until I try to rename the files. I don't understand why it is not working because I've used this code on another computer before and just copied, pasted it, and adjusted the file names around so it would work for my purposes. Any help would be greatly appreciated.
I have this small batch script. The purpose is to save small portion of our rtmp live stream
#echo off
echo Live Stream Cropper v0.1
echo **************************
echo video codec : libxh264
echo audio codec : mp3
echo **************************
echo Recording...
echo.
for /f "tokens=2 delims==" %%I in ('wmic os get localdatetime /format:list') do set datetime=%%I
set output=%datetime:~0,8%-%datetime:~8,4%
ffmpeg -i rtmp://my.streaming.path/public/appname -acodec mp3 -vcodec libx264 "X:\PATH\%output%.avi" -nostats -loglevel 0
echo.
echo "Recorded video is saved on X:\PATH\%output%.avi"
pause
The ffmpeg process is working as expected. My problem is after pressing CTRL + C to stop the process of ffmpeg, the echo command to show where the recorded file is saved is not executed.
How can I stop the ffmpeg process and then continue running the remaining of the script?
Thanks
Some programs ignore the /wait option but you can try this. Essentially you will have to spawn ffmpeg into another environment and the main environment will wait for ffmpeg to finish before it continues.
START "FFMPEG" /WAIT ffmpeg -i rtmp://my.streaming.path/public/appname -acodec mp3 -vcodec libx264 "X:\PATH\%output%.avi" -nostats -loglevel 0
Give this a try as well.
cmd /c ffmpeg -i rtmp://my.streaming.path/public/appname -acodec mp3 -vcodec libx264 "X:\PATH\%output%.avi" -nostats -loglevel 0
On Windows cmd trying this code to convert all .mp4 files in directory to set of images named "filename_imagenumber.jpeg"
pushd %1
if not exist Images\ (
mkdir Images
)
for %%F in (*.mp4) do (
ffmpeg -i %%F -r 1 -f image2 -qscale:v 2 "Images\%%~nF_image-%3d.jpeg"
)
popd
However ffmpeg's argument %3d is not interpreted by Windows cmd.
Any suggestions? Thank you