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• ffmpeg : Get last 10 seconds of live stream [duplicate]

  7 janvier 2020, par Manuel

  This question already has an answer here :

  • FFMpeg Copy Live Stream (Limit to 60s file)
    
    2 answers
    

  I am having a live stream from an ip camera, where I would like to get only the last 10 seconds of that stream.
  I’ve tried parse the steam continuously into an .mp4, and use ffmpeg -sseof afterwards, but this fails, as the input file is still writing.

  Has anyone an idea, if this is homehow possible ?

  Thanks !

• Add audio which has short duration to a long video with using amix code

  26 avril 2020, par Tevfik

  ffmpeg -y -i audio.mp3 -i input.mp4 -filter_complex "[0:a][1:a]amix=inputs=2:duration=shortest" -vcodec libx264 -pix_fmt yuv420p -r 30 -g 60 -b:v 1400k -profile:v main -level 3.1 -acodec libmp3lame -b:a 128k -ar 44100 -preset superfast output.mp4

  



  ffmpeg -i r.mp4 -i logo.gif -filter_complex "[0:v]setpts=PTS/1.06,scale=854:480[v1] ;[0:v]setpts=PTS/1.05,scale=854:480[v2] ;[v2]setpts=PTS/1.06,scale=854:480[v3] ;[v1][v3]overlay=shortest=1:enable='lt(mod(t,6.9),3)*gte(t,6.9)'[vm] ;[vm][1:v]overlay=5:main_h-overlay_h-5 ; -pix_fmt yuv420p -c:v libx264 -profile:v main -level:v 4.1 -g 33 -bf 2 -crf 22 -flags +ildct+ilme -top 1 -c:a ac3 -b:a 320k -ar 48000 -an -aspect 16:9 MP4_HD_420.MP4

  



  I want to join these codes in a one code. My aim mix mp3 audio and video audio without delete the video sound and then use the codes below. Mp3 sound duration is too short that's why I want to hear the sound till the video finishes. But I couldn't manage to join them. Need your help thanks...

  


• Python video player using ffpyplayer.player with audio repeated crack issue at end of clip

  17 janvier 2021, par sunyaer

  I am using the codes below to do a video player. For video clips cut using this command : "ffmpeg -i PrideAndPrejudice.mp4 -ss 00:50:31 -t 00:03:30 OutPutPP.mp4", there is audio crack that keeps repeating a couple of times when the picture stops at the end of the video. I suspect there may be some issues with the codes of QTimer, but as I am quite new to Python and ffmpeg, and can't figure out what exactly the problem is, not to mention how to fix it. It would be greatly appreciated for your help.

  


      self.timer = QTimer()
    self.timer.setInterval(50)
    self.timer.start()
    self.timer.timeout.connect(self.showFrame)


  


  This is the whole codes :

  


   from ffpyplayer.player import MediaPlayer
 import sys
 from PyQt5.QtWidgets import *
 from PyQt5.QtGui import QPixmap, QImage, QImageReader
 from PyQt5.QtCore import QTimer

class MyApp(QWidget):
    def __init__(self, name, parent=None):
        super(MyApp, self).__init__(parent)
        self.label = QLabel()
        self.qimg = QImage()
        self.val = ''

        self.player = MediaPlayer("PrideAndPrejudice005030.mp4")
        self.timer = QTimer()
        self.timer.setInterval(50)
        self.timer.start()
        self.timer.timeout.connect(self.showFrame)

        layout = QVBoxLayout()
        layout.addWidget(self.label)
        self.setLayout(layout)
        self.setWindowTitle(name)

        # self.showFullScreen()

    def showFrame(self):
        frame, self.val = self.player.get_frame()
        if frame is not None:
            img, t = frame
            self.qimg = QImage(bytes(img.to_bytearray()[0]), img.get_size()[0], img.get_size()[1],
                               QImage.Format_RGB888)
            self.label.setPixmap(QPixmap.fromImage(self.qimg))


if __name__ == '__main__':
    app = QApplication(sys.argv)
    t = MyApp(sys.argv[0])
    t.show()
    sys.exit(app.exec_())