[0:07] [Music]
[0:36] hi I'm dr. James welcome to another
[0:39] gamer skills video the topic today is
[0:41] how to heartburn subtitles into a video
[0:44] file you'll need to have a copy of
[0:45] ffmpeg on your system a video file with
[0:49] embedded subtitles and for the demo
[0:52] today I'm using a bot while for several
[0:55] containers that natively embed subtitles
[0:57] including Bob's which are really mpegs
[1:00] MK b's Petroski files etc there are a
[1:03] variety of reasons that you might want
[1:05] to heartburn subtitles first you can
[1:07] guarantee that they'll be displayed
[1:08] subtitles can be finicky in terms of
[1:11] getting them to show up second you can
[1:13] guarantee that the subtitles are visible
[1:15] and in the right format third you can
[1:17] decrease the number of files that have
[1:18] to be transmitted and stored as I said
[1:20] earlier we're gonna use a bob file for
[1:22] our demo today this is how a DV decodes
[1:26] the MPEG file to display in your machine
[1:28] most of the time you'll see Bob files
[1:30] divided into one gigabyte legs you could
[1:35] write a script that would individually
[1:36] burn the subtitles and to appropriate
[1:38] Bob's but I like to combine the Bob's it
[1:41] also has some secondary benefits such as
[1:43] decreasing the final size of the files
[1:45] that'll show you below and making it
[1:47] easier to code in person there are
[1:50] several ways to concatenate the bob
[1:52] files one method uses the same technique
[1:55] that was used to combine the mp3 files
[1:57] shown in the gamer skills video on
[1:58] getting mp3 files into audible you can
[2:02] also run a program called rip Bob and
[2:03] we'll talk about replied in another
[2:05] video the download link is shown below
[2:07] in my comments area let's look at the
[2:10] script in a little more detail that I'm
[2:11] gonna use today to hard burn the
[2:13] subtitles the script is consist of just
[2:16] two lines of code the first takes the
[2:18] action the second waits for the user to
[2:20] acknowledge the work is complete looking
[2:22] at that first line in more detail though
[2:23] the first portion identifies all of the
[2:26] file types of interest and then calls
[2:28] ffmpeg to take a particular action
[2:31] in this case we're using valve files in
[2:34] the second portion we tell ffmpeg to
[2:37] take the first video stream in the first
[2:39] subtitle stream and overlay them that is
[2:41] burn them into the same video stream the
[2:43] first audio stream is also mapped back
[2:45] in in the final section we tell ffmpeg
[2:48] to synchronize the audio and video
[2:50] portions of the file 1,000 times per
[2:52] second and that the target is for use in
[2:55] a DVD in particular in its movie that
[2:59] establishes a number of characteristics
[3:00] including minimal bitrate frames per
[3:02] second etc of course you can set all
[3:05] those parameters one at a time but it
[3:07] just makes it easier to use this target
[3:09] finally we tell ffmpeg that the output
[3:13] file is MPEG and that the file should be
[3:15] assigned the same names as the original
[3:18] input Bob and placed in the new folders
[3:20] new files folder you can run the script
[3:24] shown in a number of ways you can just
[3:25] double click on it from the Explorer and
[3:27] let it run you can open a command
[3:30] console and run the batch file from its
[3:32] location one useful trick is to
[3:36] right-click on the batch file and select
[3:39] edit to bring up the open file in text
[3:41] editor so this is for when you want to
[3:44] modify those batch bugs yourself I
[3:46] learned this trick from the doom 9 forum
[3:49] you can see that I use a subfolder
[3:51] called new files to put the translator
[3:52] folders in - and that's just a good
[3:54] practice to make produced file it's
[3:56] easier to find and prevent similar
[3:58] sounding files from be confused in your
[4:00] work plan
[4:01] no matter which way you choose to do it
[4:03] in just a few minutes you'll have your
[4:05] completed file with the subtitles part
[4:06] again there are a few more things to
[4:10] point out first notice that a produce
[4:11] file is smaller than the original well
[4:15] that's it for today a relatively short
[4:17] lesson if you enjoyed this video though
[4:19] please subscribe and support the channel
[4:21] thank you so much for watching that's
[4:24] all for today
[4:28] [Music]