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• Playback / recording problems

  3 novembre 2024, par Wessiez

  The code I'm working on gives me some errors. This results in frame lost when recording.

  


  The overview : A video is paused in the first frame. When the motion sensor is detected the video is playing a scary scene. After that it pauses again on the first frame.
At the same time when motion is detected the camera starts recording the reaction of the poeple watching the scary scene.

  


  This is my code :

  


  from gpiozero import MotionSensor
from time import sleep
from picamera2 import Picamera2
from picamera2.encoders import H264Encoder
from picamera2.outputs import FfmpegOutput
import vlc
import datetime

# Creating Instance class object
vlc_instance = vlc.Instance()
player = vlc_instance.media_player_new()
player.set_fullscreen(True)
  
# Define Motion Sensor
pir = MotionSensor(4)

# Camera
camera = Picamera2()
video_config = camera.create_video_configuration()
camera.configure(video_config)
camera.rotation = 180
encoder = H264Encoder(bitrate=10000000)
output = FfmpegOutput('/home/wessie/Halloween/Recordings/' + datetime.datetime.now().strftime('%Y-%m-%d_%H.%M.%S.h264'))

print("Sensor loading")
pir.wait_for_no_motion()
sleep(.1)
player.set_mrl("/home/wessie/Halloween/ScareMedia/FemaleScare.mp4")
player.play()
sleep(.1)

while True:
    try:
        print("Ready")
        pir.wait_for_motion()
        sleep(.1)
        print("Motion detected")
        sleep(.1)
        player.set_mrl("/home/wessie/Halloween/ScareMedia/FemaleScare.mp4")
        player.play()
        sleep(.1)
        camera.start_recording(encoder, output)
        sleep(12)
        camera.stop_recording()
        while player.get_state() in playing:
            sleep(.1)
            continue        
        print("Finished")
        sleep(.1)
    except KeyboardInterrupt:
        break
    except:
        continue


  


  After "Motion detected" the message is :
"Application provided invalid non monotonically increasing dts to muxer in stream 0 :"

  


  I've tried to cleanup this code, but everything I do results in other errors.

  


  Is the code in the right order ? The scary scene seems to work, but the recording is not 100%

  


• Checking Video Quality using WP Code, Forminator and FFmpeg is not working [closed]

  3 septembre 2024, par guiliannkamga Guilian90

  I have a WordPress website where users should be able to upload videos. The quality of the videos should be checked upon upload, meaning the videos must have a 16:9 aspect ratio and be in HD. If a video does not meet these conditions, the upload should not be allowed, and the user should be informed of the reason.

  


  I am using the WordPress plugin Forminator for the video upload form and WP Code with a code snippet that contains PHP code. FFmpeg version 4.4.2 is installed on my server.

  


  ffmpeg version

  


  Form to upload a Video

  


  My provider is DreamHost, and I can connect to the server via Terminal on my MacBook and run ffmpeg commands without any issues.

  


  I added the form to a page and when I upload invalid videos, unfortunately, I do not receive any error messages, which should be happening according to my code, and I do not know why.

  


  Uploading the Video

  


  Success Message after uploading the Video

  


  Can someone help me ?

  


  add_filter('forminator_custom_form_submit_before_set_fields', 'forminator_video_validation', 10, 3);

function forminator_video_validation($entry, $form_id, $field_data) {
    foreach ($field_data as $field) {
        if ($field['name'] === 'upload-1') { // 'upload-1' is the ID of the Datei-Upload-Field in Forminator
            $file = $field['value']['file']['file_path'];

            // check if the file exists
            if (!file_exists($file)) {
                wp_die('File does not exist');
            }

            // ffmpeg command to check video size and resolution
            $command = "ffmpeg -i " . escapeshellarg($file) . " 2>&1";
            $output = shell_exec($command);

            // extract resoltion from the ffmpeg output
            if (preg_match('/Stream #0:0.*Video:.* (\d+)x(\d+)/', $output, $matches)) {
                $width = (int) $matches[1];
                $height = (int) $matches[2];
                $aspect_ratio = $width / $height;
                $allowed_aspect_ratio = 16 / 9;
                $min_width = 1280;
                $min_height = 720;

                // check if the video fullfills the criterias
                if ($width < $min_width || $height < $min_height || round($aspect_ratio, 2) != round($allowed_aspect_ratio, 2)) {
                    wp_die('The video must be at least in HD (1280x720) and must have the format 16:9. (Found: ' . $width . 'x' . $height . ')');
                }
            } else {
                // If the video could not be analysed
                wp_die('The Video could not be analysed');
            }
        }
    }
}


  


  PHP Code Snippet in WPCode

  


  WPCode Settings

  


• swscale/range_convert : drop redundant conditionals from arch-specific init functions

  22 septembre 2024, par Ramiro Polla

  swscale/range_convert : drop redundant conditionals from arch-specific init functions
  These conditions are already checked for in the main init function.
  

  • [DH] libswscale/aarch64/swscale.c
  • [DH] libswscale/loongarch/swscale_init_loongarch.c
  • [DH] libswscale/riscv/swscale.c
  • [DH] libswscale/swscale.c
  • [DH] libswscale/x86/swscale.c