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• libx264 not found FFmpeg ?

  23 avril 2020, par pabolo12

  I am trying to make a build of ffmpeg with libx264 enabled. However when I run the following command in MSYS

  



  ./configure --prefix=ffmpeg/ --enable-gpl --enable-libx264


  



  I get an error saying

  



  ERROR: libx264 not found


  



  I am using MSYS on windows 10. I also have installed NASM. Here is the config.log file

  



  BEGIN /tmp/ffconf.TRVJWfGe/test.c
    1   #include 
    2   #include 
    3   #include 
    4   long check_x264_encoder_encode(void) { return (long) x264_encoder_encode; }
    5   int main(void) { int ret = 0;
    6    ret |= ((intptr_t)check_x264_encoder_encode) & 0xFFFF;
    7   return ret; }
END /tmp/ffconf.TRVJWfGe/test.c
gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1 -D__MSVCRT_VERSION__=0x0700 -D_WIN32_WINNT=0x0600 -D__printf__=__gnu_printf__ -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -std=c11 -fomit-frame-pointer -c -o /tmp/ffconf.TRVJWfGe/test.o /tmp/ffconf.TRVJWfGe/test.c
In file included from c:\mingw\include\stdint.h:46,
                 from c:\mingw\lib\gcc\mingw32\9.2.0\include\stdint.h:9,
                 from C:/Users/pawel/AppData/Local/Temp/ffconf.TRVJWfGe/test.c:1:
c:\mingw\include\_mingw.h:413:3: warning: #warning "Direct definition of __USE_MINGW_ANSI_STDIO is deprecated." [-Wcpp]
  413 | # warning "Direct definition of __USE_MINGW_ANSI_STDIO is deprecated."
      |   ^~~~~~~
c:\mingw\include\_mingw.h:414:10: note: #pragma message: See <_mingw.h> for preferred feature activation methods.
  414 | # pragma message "See <_mingw.h> for preferred feature activation methods."
      |          ^~~~~~~
C:/Users/pawel/AppData/Local/Temp/ffconf.TRVJWfGe/test.c:2:10: fatal error: x264.h: No such file or directory
    2 | #include 
      |          ^~~~~~~~
compilation terminated.
ERROR: libx264 not found


  



  Could you tell me how to fix the error, or is there a prebuilt package with libx264 already inside ?

  


• ffmpeg scrolling filter, how not to have a -t parameter ?

  22 avril 2020, par Julien FEGER

  Hello everyone and thanks for reading ! I'm trying to create a video workflow for automating video editing from a .jpg.

  



  I'm using the ffmpeg scroll filter but having quite the difficulties with it.

  



  const encodeVideo = (path, video) => {
const p = new Promise((resolve, reject) => {
    Jimp.read(`${path}/${video.name}`).then((image) => {
        image.resize(1280, Jimp.AUTO)
        image.write(`${path}/${video.name}`)
        clipDuration = Math.ceil(image.bitmap.height * 0.0135); //not working well...
        const ffmpeg = spawn('ffmpeg', ['-loop', '1', '-i', `${path}/${video.name}`, '-vf', `scroll=vertical=0.001,crop=1280:720:0:0,format=yuv420p,fps=70,fade=type=in:duration=1,fade=type=out:duration=1:start_time=${clipDuration - 1}`, '-t', `${clipDuration}`, `./${path}/${video.name}.mp4`]);
        ffmpeg.stderr.on('data', (data) => {
            // console.log(`${data}`);
        });
        ffmpeg.on('close', (code) => {
            resolve();
        });
    }).catch((err) => console.log(err))
});
return p;


  



  }

  



  Here is my encodeVideo function. It creates a scrolling video of length : clipDuration, with a fade in/fade out effect.

  



  My questions are the following :

  



  


  • How can i bypass the clipDuration property so that only the scrollspeed and image.bitmap.height determine the clip duration ? Currently if clipDuration is too long, once scrolling is done it loops to the beginning. If clipDuration is too short, it doesn't go to end of image. I want it to stop when scrolling has reached the bottom of image.

  


  • How can i add a 1sec pause at the beginning and the end of the clip ?

  


  



  Thanks for your time and inputs !

  


• Restart environment and script during batch script

  7 décembre 2024, par ninbura

  I've built a few FFmpeg powershell scripts for me and a few others to use and I'm attempting to make the setup and update process as easy as possible. The end goal is to be able to run 1 batch file that installs Chocolatey, FFmpeg, git, clones the github repo (for updates), and edits the Windows registry to add the actual FFmpeg powershell scripts / console programs to the Windows Explorer contextual menu. This way I just pass them the folder containing everything once and any time I change or add something to the project I can just tell them to run the batch file again, and presto everything is up to date.

  



  However I'm struggling to find a way to install Chocolatey, then git with Chocolatey, and then run a git command with the execution of a single .bat file. From what I can tell after installing Chocolatey I need to restart the shell entirely before I can install git, and then I have to restart the shell again before I can use a git command. As of right now most of the actual processing is happening via Powershell scripts that are launched from the .bat file, and as each step is taken I update a txt file, attempt to restart the batch script, and read the txt file to pick up where I left off :

  



  @echo off
echo Administrative permissions required. Detecting permissions...
echo.

net session >nul 2>&1
if %errorLevel% == 0 (
    echo Success: Administrative permissions confirmed.
    echo.
) else (
    echo Failure: Current permissions inadequate.

    PAUSE

    exit
)

set relativePath=%~dp0
set relativePath=%relativePath:~0,-1%

PowerShell -NoProfile -ExecutionPolicy Bypass -File "%relativePath%\Setup\CheckRequiredPackages.ps1" -relativePath "%relativePath%"

set /p step=<"%relativePath%\Setup\Step.txt"

if %step% == 1 (
    (echo 2) > "%relativePath%\Setup\Step.txt"

    PowerShell -NoProfile -ExecutionPolicy Bypass -File "%relativePath%\Setup\GetChocolatey.ps1"

    start "" "%relativePath%\RunMe.bat"

    exit
) 

if %step% == 2 (
    (echo 3) > "%relativePath%\Setup\Step.txt"

    PowerShell -NoProfile -ExecutionPolicy Bypass -File "%relativePath%\Setup\GetRequiredPackages.ps1"

    start "" "%relativePath%\RunMe.bat"

    exit
) 

if %step% == 3 (
    (echo 0) > "%relativePath%\Setup\Step.txt"

    PowerShell -NoProfile -ExecutionPolicy Bypass -File "%relativePath%\Setup\Update.ps1" -relativePath "%relativePath%"
) 

PAUSE
Exit


  



  The problem is using the start command in the batch script doesn't seem to work, I'm guessing since that new process is spawned from the same process that handles the Chocolatey install it doesn't count as actually restarting the shell. Is there any way to actually restart the shell and somehow have the batch file start back up without user intervention ?