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• Using ffmpeg to split video files by size

  8 juillet 2016, par user2548469

  I’m trying to write a batch file using ffmpeg to automate the redundant daily task of taking footage from work that’s recorded in 4gb blocks (which is standard in most DSLR cameras & GoPro’s), and split the clips into 2gb files for streaming purposes. The idea is to have the script check external drive FOOTAGE’s folder @import and split files after 2gb (since the max size is 4gb, this will alleviate the need for more than one split).

  I’m also trying to amend the filenames of the split files, so FILE1 is 4gb, it splits into FILE1_1 and FILE1_2 which are 2gb each, respectively. Everything I’ve tried has just copied the original file into two new, identical files - no split or anything.

  After doing some Googling and reading some of the answers here, I found this post, but it’s based on duration, not size (recording video footage at varying levels of quality makes this pointless) : Split into equal parts and convert many mp4 videos using ffmpeg

  Can someone help me with this ? I haven’t come across any usable solutions utilizing what I understand to be the method, using -fs limit_size, and I really want to understand how this works.

  UPDATE : Also found this, but it hasn’t been updated in four years and I don’t see anything in there regarding splitting that will prove helpful :

  https://github.com/kcm1700/VideoSplitter/blob/master/

• FFMPEG with moviepy

  5 novembre 2023, par Shenhav Mor

  I'm working on something that concatenate videos and adds some titles on through moviepy.

  


  As I saw on the web and on my on pc moviepy works on the CPU and takes a lot of time to save(render) a movie. Is there a way to improve the speed by running the writing of moviepy on GPU ? Like using FFmpeg or something like this ?

  


  I didn't find an answer to that on the web, so I hope that some of you can help me.
I tried using thread=4 and thread=16 but they are still very very slow and didn't change much.

  


  My CPU is very strong (i7 10700k), but still, rendering on moviepy takes me for a compilation with a total of 8 minutes 40 seconds, which is a lot.

  


  Any ideas ?Thanks !
the code doesnt realy matter but :

  


  def Edit_Clips(self):

    clips = []

    time=0.0
    for i,filename in enumerate(os.listdir(self.path)):
        if filename.endswith(".mp4"):
            tempVideo=VideoFileClip(self.path + "\\" + filename)

            txt = TextClip(txt=self.arrNames[i], font='Amiri-regular',
                           color='white', fontsize=70)
            txt_col = txt.on_color(size=(tempVideo.w + txt.w, txt.h - 10),
                                   color=(0, 0, 0), pos=(6, 'center'), col_opacity=0.6)

            w, h = moviesize = tempVideo.size
            txt_mov = txt_col.set_pos(lambda t: (max(w / 30, int(w - 0.5 * w * t)),
                                                 max(5 * h / 6, int(100 * t))))

            sub=txt_mov.subclip(time,time+4)
            time = time + tempVideo.duration

            final=CompositeVideoClip([tempVideo,sub])

            clips.append(final)

    video = concatenate_videoclips(clips, method='compose')
    print("after")
    video.write_videofile(self.targetPath+"\\"+'test.mp4',threads=16,audio_fps=44100,codec = 'libx264')


  


• Build guacenc after install of guac [closed]

  30 juin 2022, par d-lux

  Is there a way to build guacenc after installing guacamole ?

  


  I installed ffmpeg, now I need guacenc built !

  


  We didn't think we would use this feature when we deployed guac, but we may now use it (session recording)

  


  Any advice helps !