[0:04] [Music]
[0:09] what is going on guys welcome back in
[0:11] today's video i'm going to show you how
[0:12] you can automate video editing in python
[0:15] using movie pie so let's get right into
[0:17] it all right so what we're going to do
[0:18] is we're going to edit videos we're
[0:20] going to cut videos in python we're
[0:21] going to add some effects and for this
[0:23] we're going to use the library movie pi
[0:25] which is an external library which means
[0:26] that we need to install it using the
[0:28] command line so we open up cmd on
[0:30] windows or the terminal on linux and mac
[0:32] and we type pip install
[0:35] movie pi like that
[0:38] once you've done that you will be able
[0:39] to import it so we're going to say from
[0:41] movie pi and we're going to use a sub
[0:43] module editor so we're going to say from
[0:45] movie pi dot editor because we can do
[0:47] different things with
[0:49] uh with movie pie so we're going to pick
[0:51] the editor to edit videos and from the
[0:53] editor we're going to import a bunch of
[0:55] classes and functions and so on so
[0:59] if you just want to play around you can
[1:01] use a wildcard import but never use it
[1:03] in code if you have to import many many
[1:06] things in code you might want to use an
[1:07] alias something like import
[1:10] moviepie.editor s i don't know me or
[1:12] something i think there might even be a
[1:14] convention for that uh but don't just
[1:17] import everything you can do that if you
[1:19] just want to play around and if you want
[1:21] to to experiment uh for today's video
[1:23] we're just gonna import everything
[1:24] manually and the first thing you want to
[1:27] import here is the video file clip and
[1:29] before we continue with the code let me
[1:31] show you what the basic idea is of what
[1:33] we're going to do today so i have here a
[1:35] directory with
[1:37] an intro mp4 which is a neural nine
[1:39] intro and we have two videos which are
[1:42] copyright free um so i got them from
[1:45] pixabay
[1:46] to to be able to show them in that video
[1:48] here
[1:49] and when we open one of these videos
[1:51] here we're going to see they're quite
[1:53] simple so just some smoke
[1:56] um 59 seconds you can see some smoke
[1:59] animation here
[2:00] and the second one is also something
[2:03] similar
[2:04] as you can see here
[2:05] um and then i have the neural nine intro
[2:07] which i'm mainly going to use for the
[2:09] music so we're not going to use the the
[2:11] intro itself really as a video and the
[2:14] basic idea is just to show you here how
[2:15] you can add it how you can combine how
[2:17] you can cut videos with movie pie and
[2:19] python uh it is quite interesting
[2:21] especially if you want to i don't know
[2:23] do some compilation style video or you
[2:25] want to do some random compilation or
[2:27] you want to just automate your video
[2:29] cutting process if it's always the same
[2:31] you just need to enter the seconds or
[2:32] something like that uh there are many
[2:34] use cases for that so i'm going to give
[2:36] you the very simple example of just
[2:37] picking these videos that i showed you
[2:39] taking parts out of them combining them
[2:41] then adding some transitions then adding
[2:44] some music and so on uh just to see how
[2:46] this works
[2:47] so the first thing we want to do is we
[2:48] want to define clips we want to take for
[2:50] example
[2:52] the first video of the smoke animation
[2:54] if we want to take
[2:55] the part from second 10 to second 20.
[2:58] how do we do that we can say something
[3:00] like clip 1
[3:01] equals and then i say video file clip
[3:04] and here i enter the file name now so i
[3:06] enter 1.mp4
[3:08] which is the first video and then i can
[3:10] apply
[3:11] certain functions at the end of that
[3:13] video file clip so i can say ok dot sub
[3:15] clip and this is going to return again a
[3:18] clip now if i'm not mistaken video file
[3:20] clip
[3:22] um
[3:24] do we see that here
[3:26] okay we don't see that but video file
[3:28] clip returns a clip and when i then
[3:29] apply sub clip it returns a clip and i
[3:31] think that when i apply something else
[3:34] it also returns a clip so it's a little
[3:36] bit like a
[3:37] builder as far as i know but the
[3:39] important thing is we we do something
[3:41] like mp4 and then
[3:43] dot sub clip and here we specify
[3:46] second 10 second 20. this means we take
[3:48] the video uh at the location1.mp4 this
[3:52] is the file name then we sub clip
[3:54] meaning that we take uh the part of the
[3:56] video from second 10 to second 20 and
[3:59] then we can add some more stuff in the
[4:01] end if we want to we're just going to
[4:02] leave it like that for now then we can
[4:04] say clip 2 equals video file clip 2.mp4
[4:08] and we can do something something
[4:10] similar here so for example
[4:13] same time range and then we can say okay
[4:15] clip three is going to be just
[4:18] the
[4:19] one mp4 again
[4:24] dot sub clip 20 30 for example just to
[4:28] mix it up a little bit
[4:30] um
[4:30] [Music]
[4:32] yeah so this is without effect this is
[4:33] without transitions this is just a basic
[4:36] uh the basic clips here and now we can
[4:38] go ahead and combine these into one full
[4:40] video that we then save that we then
[4:43] export to the hard drive and how we can
[4:46] do that is we need to import another
[4:47] function which is called concatenate
[4:50] video clips
[4:51] and as the name already says it
[4:52] concatenates video clips so we're going
[4:54] to say combined equals concatenate video
[4:57] clips and here we basically just pass a
[4:59] list of clips so clip 1
[5:01] clip 2
[5:03] clip 3 like that
[5:05] and all we need to do now to produce to
[5:08] produce the final video is combined dot
[5:11] write video file and then combine dot
[5:13] mp4 for example
[5:18] so we run this and we're hopefully going
[5:21] to see the progress here you can see
[5:23] it's working
[5:25] uh it may take a little bit longer if
[5:26] you don't have a strong computer and
[5:28] then it's done we can go ahead and open
[5:31] it up in the explorer
[5:33] and then just click on it and you can
[5:35] see here that we have the first 10
[5:37] seconds are the animation from video one
[5:39] from the second 10 to second 20 and then
[5:43] after 10 seconds we're going to switch
[5:44] you're going to see here there you go it
[5:46] switches and then
[5:48] at around second 20 there you go it
[5:50] switches back again so we just combined
[5:52] three clips we took a video we took two
[5:55] videos we got some clips out of that we
[5:57] combined them in a certain order and
[5:59] that's basically it so this is how you
[6:01] basically just cut videos now you can
[6:03] also add some animation you can add
[6:05] transitions you can add effects uh so
[6:08] let me show you a very simple one you
[6:09] can go just ahead here and say clip four
[6:12] and we're gonna take uh let's say again
[6:15] 10 20 so we basically take the same clip
[6:18] but we're now gonna add some effects and
[6:20] how do we add effects now i'm not sure
[6:22] if we need to import that no we don't
[6:24] need to import that but we need to
[6:25] import uh something else so we can call
[6:27] the dot fx function to add some effect
[6:30] to add some filter basically and here
[6:33] now we need to use vfx so we need to
[6:35] import vfx and we're going to use vfx
[6:38] for
[6:39] um
[6:41] for all sorts of filters for all sorts
[6:43] of video transitions everything that's
[6:46] related to video effects is in vfx
[6:48] everything that's related to audio
[6:50] effects is in afx so later on we're also
[6:52] going to import afx now let me just see
[6:54] if you can see all the imports yes you
[6:56] can
[6:57] um
[6:58] and now what we can do here is we can
[6:59] just say okay
[7:01] let's say vfx dot color
[7:04] x
[7:05] and now i can just say 1.5
[7:09] and this is going to change the color
[7:11] color x value
[7:12] i can also change the contrast now let
[7:14] me just start a new line here how do we
[7:16] do that in python again like that right
[7:19] uh so
[7:21] dot fx and then vfx dot
[7:25] loom underscore contrast and we're gonna
[7:29] say this is 0
[7:31] 50
[7:32] 128 or something
[7:35] i hope these are acceptable values now
[7:36] let me indent that a little bit here
[7:40] and
[7:42] now we can just add this clip here in
[7:44] the end and this is going to take some
[7:45] time probably because it has to do the
[7:48] calculations so you're going to see that
[7:50] when it works it's going to start quite
[7:52] quickly and then in the end it's going
[7:53] to take some more time i think there you
[7:55] go
[7:56] now now it uh it is a little bit slower
[7:58] because it has to apply onto each frame
[8:00] all these effects now those are just two
[8:02] effects but if you have a lot of effects
[8:04] on each frame this needs to be
[8:06] calculated what it looks like and so on
[8:08] uh and then it produces the final video
[8:10] and now we're going to see that we have
[8:12] an additional clip an additional 10
[8:14] second clip
[8:15] and if we open this up again
[8:19] in the explorer
[8:21] and we go to the end you're going to see
[8:24] that we now have this thing here which
[8:26] is essentially
[8:27] uh the first
[8:29] the first clip with these filters again
[8:31] i didn't choose quite i didn't choose
[8:34] any
[8:35] interesting or meaningful filters i just
[8:37] showed you something again if you want
[8:38] to see all the functions like usual you
[8:41] just go to documentation but this is the
[8:43] general idea you call the fx function on
[8:46] a clip and then you pass vfx for video
[8:49] effects and then uh you you pick some
[8:51] filter you pick some setting that you
[8:53] want to change
[8:54] now
[8:55] another thing that we can do here is
[8:57] transitions as i already said so what i
[8:59] usually do in my videos you have
[9:00] probably noticed is i have one clip at
[9:02] least when i split the video up into
[9:04] multiple clips i have one clip and then
[9:06] in the end i have a one second
[9:08] fade out or half a second fade out and
[9:10] then fade in again
[9:12] to switch between the individual clips
[9:14] so we can do something similar here as
[9:16] well we can just say fx and then vfx
[9:19] dot fade in
[9:21] and then specify the second so one
[9:24] second fade in
[9:25] and then also
[9:27] fx vfx and now i think i'm starting to
[9:30] block the code right
[9:31] there you go so let me just move this
[9:33] down here
[9:36] um i can say vfx dot fade out
[9:40] and
[9:42] vfx fade out is gonna have also one
[9:44] second and now i can just take this here
[9:47] i can copy this and i can
[9:51] paste this
[9:52] and there you go
[9:54] and that will then generate a simple
[9:57] fade in fade out effect now before we
[9:59] just do that i also want to add an audio
[10:01] clip or actually let's first see what
[10:03] what this looks like since we don't have
[10:05] the effects now anymore this is not
[10:07] going to take too long uh but then we're
[10:09] also going to get uh we're we're going
[10:11] to add the audio from my intro just to
[10:13] have some audio again the result of this
[10:15] is not going to be a fancy video it's
[10:16] just showing you how to use everything
[10:18] and then you can make your own fancy
[10:20] video if you want to
[10:22] but now we should be able to see a fade
[10:24] in effect there you go we saw the fade
[10:27] in effect now
[10:28] at second
[10:30] 10 we see it fade out fade in and so on
[10:33] and so forth so this is quite useful um
[10:36] if you want to use python for video
[10:37] editing i don't i use davinci resolve
[10:39] but still you can use python for video
[10:41] editing if you want to
[10:43] now let's go ahead and
[10:45] get the audio clip and for that we're
[10:46] going to also import here the audio file
[10:49] clip
[10:50] and we're also going to import afx for
[10:52] the audio effects
[10:54] um and how do we do that essentially we
[10:56] just say okay audio equals audio file
[10:59] clip and we don't have to load an mp3 or
[11:02] an audio file we can also get a video
[11:04] file and get the audio from that video
[11:06] file
[11:07] and now we can add some some effects
[11:09] here as well so we can say fx and then
[11:11] for example af afx dot audio
[11:16] underscore
[11:18] fade in
[11:19] to fade in the audio obviously and also
[11:21] here we can specify a second
[11:24] and then we're going to say fx
[11:26] af afx and we can change the volume now
[11:30] let's do it first without the volume
[11:31] change i'm actually not sure if you're
[11:34] going to hear something because i think
[11:35] i have disabled the desktop sound
[11:37] um
[11:39] but
[11:40] this is how you create your audio clip
[11:41] and now to the final video clip you just
[11:43] have to say combined dot
[11:46] audio equals and then this is another
[11:48] thing that we need to import here
[11:50] composite audio clip
[11:53] um
[11:55] and we just say here composite audio
[11:57] clip
[11:58] audio like that
[12:01] so we can run that and then it's going
[12:03] to get the audio from the intro again i
[12:05] don't think that you're going to hear it
[12:06] maybe i can change something about the
[12:08] settings here
[12:10] so i now enable the desktop audio maybe
[12:12] you're going to hear something if not
[12:14] you can just run this on your own
[12:15] computer and you're going to see
[12:17] that the audio is there
[12:19] and
[12:20] again
[12:24] [Music]
[12:27] you want to do it on your own and um now
[12:30] we can add a final filter here we can
[12:31] just say fx
[12:34] af x dot
[12:36] uh what was the name volume x and this
[12:38] basically means that we can
[12:40] uh increase or decrease the volume so if
[12:42] i say 0.1 we're not going to hear
[12:44] anything now i don't know if you heard
[12:46] anything
[12:46] um
[12:47] right now but if you have heard anything
[12:50] right now now you would hear it way uh
[12:53] way more silent
[12:54] so the the volume is going to be
[12:56] decreased and we can see the effect
[12:58] hopefully you can also hear it in the
[13:00] video again otherwise just try it on
[13:01] your own
[13:04] and there you go
[13:07] so there is still audio but it's very
[13:09] very
[13:10] silent
[13:11] i'm not sure if silent is the correct
[13:12] word so this is how you can cut videos
[13:15] how you can edit videos in python you
[13:17] just have video clips you have audio
[13:19] clips you can
[13:20] cut them you can add effects you can add
[13:22] transitions you can change the audio you
[13:24] can fade in fade out and a ton of more
[13:26] things that you can read about in a
[13:28] documentation this was a very basic
[13:30] introduction i hope you enjoyed it and
[13:32] that's it
[13:33] so that's it for today's video i hope
[13:34] you enjoyed it and i hope you learned
[13:36] something if so let me know by hitting
[13:37] the like button and leaving a comment in
[13:39] the comment section down below and of
[13:40] course don't forget to subscribe to this
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[13:46] other than that thank you much for
[13:47] watching see you next video and bye
[13:50] [Music]
[14:06] you