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• Adds dnn inference module for simple convolutional networks. Reimplements srcnn filte...

  25 mai 2018, par Sergey Lavrushkin

  Adds dnn inference module for simple convolutional networks. Reimplements srcnn filter based on it.
  Signed-off-by : Pedro Arthur <bygrandao@gmail.com>
  

  • [DH] Changelog
  • [DH] libavfilter/Makefile
  • [DH] libavfilter/dnn_backend_native.c
  • [DH] libavfilter/dnn_backend_native.h
  • [DH] libavfilter/dnn_interface.c
  • [DH] libavfilter/dnn_interface.h
  • [DH] libavfilter/dnn_srcnn.h
  • [DH] libavfilter/vf_srcnn.c
  • [DH] libavfilter/vf_srcnn.h

• creating thumbnail from a video using ffmpeg in php exec() returns 1 but returns 0 if command is 'ffmpeg -h'

  23 septembre 2013, par user2807517

  creating thumbnail from a video using ffmpeg in php exec() returns 1 but returns 0 if command is 'ffmpeg -h'. i am using ubuntu. A portion of my code is as shown bellow. When i tried $cmd it returned 1 and when i tried $cmd1 it worked.

  $ffmpeg = 'ffmpeg';
  
  $getFromSecond = 5;
  
  $videoFile = $_FILES['file']['tmp_name'];
  
  $size = '105x73';
  
  $imageFile = 'Newimage.jpg';
  
  
  
  $cmd = "$ffmpeg -an -ss $getFromSecond -i $videoFile -vframes 1 -s $size $imageFile";
  
  $cmd1 = "$ffmpeg -h";

  works for $cmd1 but not for $cmd, i am thinking it is permission issues

• Python subprocess.Popen + ffmpeg breaks terminal input

  16 décembre 2020, par Barney Suit

  I was writing a module to create random screenshots from a video and used subprocess.Popen to run multiple commands in parallel but this leads to terminal refusing from showing any input once the python program is finished running. But it still accepts most inputs given from the keyboard it just doesn't display it.

  


  Only if I type the reset command terminal starts working fine
This happened on ssh with putty and other ssh clients even ssh with powershell on windows and directly running on terminal with VNC

  


  But without ssh directly running the same command on windows ssh works fine and and inputs are visible

  


  here's a gif example for whats happening


  


  and code to replicate it

  


  #!/usr/bin/env python3.8
from subprocess import Popen

def create_screenshots():

    commands = ['ffmpeg -hide_banner -loglevel panic -ss 329  -i "/home/user/file.mkv" -y -vframes 1   "/home/user/file.329.frame.png"',
                'ffmpeg -hide_banner -loglevel panic -ss 312  -i "/home/user/file.mkv" -y -vframes 1   "/home/user/file.312.frame.png"',
                'ffmpeg -hide_banner -loglevel panic -ss 533  -i "/home/user/file.mkv" -y -vframes 1   "/home/user/file.533.frame.png"',
                'ffmpeg -hide_banner -loglevel panic -ss 444  -i "/home/user/file.mkv" -y -vframes 1   "/home/user/file.444.frame.png"',
                'ffmpeg -hide_banner -loglevel panic -ss 411  -i "/home/user/file.mkv" -y -vframes 1   "/home/user/file.411.frame.png"',
                'ffmpeg -hide_banner -loglevel panic -ss 413  -i "/home/user/file.mkv" -y -vframes 1   "/home/user/file.413.frame.png"']
    screenshot_files = []
    processes = [Popen(command, shell=True) for command in commands]
    for process in processes:
        process.wait()
    
    return screenshot_files


create_screenshots()