[0:00] Hello this is Stef! Welcome back to 
my channel so I remind you to like  
[0:04] share and subscribe if you like 
the content that I'm providing.  
[0:08] Now, today we're going to see something a 
bit different. So far we dealt with videos,  
[0:14] we dealt with what to do with images we dealt 
with what to do with videos we did a lot with  
[0:19] the video track we are going to see another type 
of track that is the subtitle track we're going  
[0:25] to see how to extract subtitles how to burn 
subtitles how to manage subtitles in general
[0:33] hmm okay
[0:38] I see and how to manipulate them in order to 
include them in the file you want So at the  
[0:45] moment I have a subunitu already behind 
me and so now it's time to get started
[0:58] okay we here we have zuboon 2 ready and the video 
we're analyzing at this moment is a video called  
[1:05] singtel sintel is made by the same house let's 
say that did that made a Big Buck Bunny so a  
[1:15] video that we already seen that we already know 
this is a video that if you watch it is not as  
[1:22] a light themed as a big bug bunny there's a bit 
more dense plot and it's a bit moving so I cried  
[1:32] a little as soon as I watched this movie anyway 
it's remarkable for us because if we take a look  
[1:37] using FF probe so now let's let's meet go to the 
right folder so here we have the latest version  
[1:47] that we have so far we are trying to invoke FF 
Probe on this video and we'll see what is going on  
[1:57] what are the tracks that are available right here 
okay as the local program you see that there is  
[2:06] um so it's quite complex it's quite well done as 
a video something that we might expect out of a  
[2:13] movie for example and here we see that there is a 
video input with the chapters but the the concept  
[2:24] of the chapters is going to be seen another 
video um we have an audio track and a lot of  
[2:34] subtitle tracks so here if you would like we can 
also invoke a probe to take the streams so let's  
[2:45] see what it tells so I have a probe minus show 
streams and also let's see show format as well
[2:57] this way yeah plane way and you see that right 
here we have all the indications of all the  
[3:06] streams you have all the indications we see that 
the type of codec is a subrip and so let's have  
[3:13] a look at what we can do so first of all let's 
have a look also at the available subtitles codex  
[3:20] so even the subtitles have their own codecs so 
seems strange but it is like this so to inspect  
[3:28] which are the um the tracks available sorry 
the types of subtitles available you can go  
[3:36] and take a FM pack minus codex then we put a pipe 
with a research upon this track so we can take
[3:50] there's a string of research so it's 
going to take what's in the beginning  
[3:56] uh in the beginning you saw the indication if 
it is uh which type of codec which so in this  
[4:04] case we want a subtitle track as this available 
and again I always forget to book it locally  
[4:15] and here as you can see this is all the list 
of types of subtitles that we can use within  
[4:23] our videos here we go uh among them there 
is a sub rip so subrip subtitles and so we  
[4:33] can use it directly another way of taking out 
the subtitles out of your file is to invoke  
[4:42] admin pack minus codex and again a pipe grab 
subtitle simple as that again local invocation  
[4:55] and here you have all the lists as before so 
the same list can be wrapped in this way maybe  
[5:01] this is easier the other is a bit more hacky 
with the the grab and stuff if you would like  
[5:08] to extract the subtitles out of the video what 
we can do is to invoke headphone package again  
[5:16] minus I name of the video so now we take as the 
input the input file and what we want is only  
[5:26] the subtitle track so to invoke the subtitle 
track what we're going to do is to remove  
[5:34] the video track so minus the end remove the audio 
tracks okay and among the subtitle tracks we're  
[5:44] going to use for example the first so in this 
case what you have to do is to take the math  
[5:52] then got to take the first file and we're going 
to select the first subtitle track that if I'm not  
[6:04] wrong it was the German one so what I'm going 
to do now I'm going to take the type of codec  
[6:11] in this case a minus C colon s s stands for 
subtitle that is available both in the map and in  
[6:23] the codec here we're going to copy 
we want the track as it is and then
[6:32] what we can say is take as output file a file 
that has the German language dot the native  
[6:44] format for the subtitle stream subrip as it is 
available in the video is SRT let's see it works  
[6:57] and here what it does is extracting all 
the subtitles that are out in the video  
[7:05] here we go the type is a copy so they should 
be as they are within the video now let's see  
[7:12] what's the content of this video this is 
a plain readable file differently from the  
[7:19] video and the audio usually the audio 
in the video are binary requires some  
[7:23] special treatment for the subtitles this is 
quite easy let's have a look as a subtitled  
[7:29] we can open it directly using a text editor 
so we're going to use a VIN and let's take a
[7:40] video and here we see all the results here you 
see the syntax that is inside our video inside our  
[7:51] subtitles so you see that there's a progressive 
number for each subtitles you would like to take  
[7:58] you see the instant you want to show the subtitle 
minus minus greater than sine so just a remarkable  
[8:08] there is a text way to Mark um an arrow and 
then the end of showing of your subtitle so  
[8:19] beginning and so the certain the some subtraction 
of the last and the first value is the duration of  
[8:27] your uh of your subtitle and here you have your 
text here the text if you want you can put it in  
[8:37] multiple lines here this is put in two lines so 
here you have the first line and the second line  
[8:43] simply then all the entries must be separated 
by align the middle so it is as simple as that  
[8:52] if you would like you can type in manually there 
are some programs that you would like to use it  
[9:00] um you would like to use to make them better but 
this is all that you need to know to deal with the  
[9:06] subtitles okay so we dealt with the SRT subtitles 
the subgrade Oma subtitles if you would like to  
[9:14] use other types of subtitles you can so we saw the 
list also titles that you can use for example if  
[9:21] you would like to use that dot ass subtitles what 
you can do is to convert the subtitles as well so
[9:32] you can use the input also so subtitle as input 
as well and we can change it to the same name  
[9:45] and in this case instead of putting SRT 
we put ass and everything is arranged by  
[9:52] a fun pack so we have our DOT ass file 
if we open it using a text editor you  
[10:00] will find the syntax that is slightly 
different so here you can see that the  
[10:06] there's a different scanning you see dialog column 
the beginning and the end of the end of time it is  
[10:17] more or less a CSV like so you see that there is 
all the effect the the resolver scanning of each  
[10:27] line that you would like to display so a bit more 
uh complicated to read but it's here available  
[10:36] in another form now we extract it before the 
German language but we would like to extract  
[10:43] some more languages for us for me personally I'm 
Italian so I would like to take the English and  
[10:49] Italian language but now I don't know which is 
the index of the different languages I think  
[10:55] that I can do is to invoke FM pack in order to 
see all the languages available so we said the  
[11:04] first language is the the German one so um we 
can okay invoke FF probe like this and see all  
[11:14] the languages available again local style and 
remember here I have a German English Spanish  
[11:23] French Italian Dutch polish Portuguese Russian 
and Vietnamese so for me the type of streams  
[11:32] that I'm interested about are the English number 
three and the Italian then take whatever you want  
[11:40] I don't want to uh so just just an example 
so what they can do is uh to invoke FM pack  
[11:51] minus I name of the video then I take minus VN 
that stands no video take minus uh a n no audio  
[12:06] and then I'm selecting through the map the if you 
can't remember how the map works I put the video  
[12:14] here in the cart and what I would like to 
map is the first sorry the um Italian and  
[12:24] the English strikes so these are respectively the 
number three and the number six what I can do is  
[12:32] uh to take either the um absolute crack or the 
relative track according to the type of string  
[12:43] that I want so here uh what I can do is to put 
the file number zero and the track number three  
[12:53] something like this and then 
I'm going to make a CS copy  
[13:03] and the name of the file as 
a singtel well la English
[13:12] dot SRT so the same format as before
[13:18] and now I have my English subtitles now 
I'm going to check Vim name of the file  
[13:27] and here I see that my subtitles are in English 
what I would like to do is to also use the same  
[13:38] command that I used before so this one but instead 
of putting the absolute track so this is the track  
[13:46] number three remember here we have S track the 
number six that is the first second third fourth  
[13:55] fifth track in the sequence so the fifth track is 
a track number four and what you can do is a zero  
[14:04] that was up our stream they want is a 
subtitle and the track is number four  
[14:11] here I take everything as it 
was before so here I put Italian
[14:21] I extract the video I'm sorry the 
subtitle and here I have my Italian  
[14:26] thread let me check if this is a really 
the Italian one if I didn't miss any counts
[14:35] and it seems Italian okay so 
this is uh the right one cool  
[14:42] okay now I have my English track I have my 
Italian track what I would like to do now is  
[14:48] to create a video with only the audio the video 
and the subtitles so what I would like to do  
[14:58] is to invoke again a fun pack minus I in this 
case I get to take the first the second and  
[15:06] the third file so first this then my sub first 
subtitle track then the other subtitle track  
[15:17] so my three files are rightly put then 
I got to take the video from the first  
[15:26] frame so I can take a map from the first 
file I'm going to take the video tracks  
[15:34] from the first file I'm going to take again all 
the audio tracks and so for the other I'm going to  
[15:44] take the subtitle tracks so I can take something 
like this it has to be complete minus map  
[15:54] yeah for the third file by number two I take 
the same subtitle crash and then in the end  
[16:01] I'm going to create my file my file can be with 
the same name and with the reduced languages  
[16:09] so what I can do is something like a singtel 
let's say Italian and so English Italian and
[16:23] so I want a matrushka video just suppose a thing  
[16:31] like this I think that supports a copy 
all the tracks so I would like to do uh
[16:41] called B of everything so I can do also more 
easily set of setting the video the audio and the  
[16:49] subtitles what I can do is to put a minus C P so 
everything will be a copy no transcoding implied  
[16:59] see if it works it seems to work  
[17:05] now it's putting all together and let's see what's 
the result so everything is done in a copy way  
[17:15] and let's see if the video is played so I'm 
going to open it with VLC and see that the  
[17:24] video is played perfectly I'm going to check also 
if the titles are rightly put so here we've got  
[17:32] the two tracks one I suppose it is the English 
the other I suppose it is the Italian let's hope
[17:41] so there's the the scene in the center 
that has a dialogue I got to search for it
[17:49] and the
[17:56] matter here it is so here we have a the subtitles 
in English and if I change to the other subtitles
[18:08] we have the subtitles in Italian so cool that's 
what we wanted okay good so now we have a video  
[18:15] uh we have a languages but if we open this 
video what we have is a video that has the  
[18:23] subtitle as we want but it doesn't have the 
references that are correct in the subtitle  
[18:31] so if you see the subtitle track you see there is 
track one track two but they're not so meaningful  
[18:37] they don't mean anything to us so we don't 
know if the first is the English the other  
[18:43] is the Italian here it seems like the first 
is the English one so what do you like to do  
[18:49] is to detect to tell the software that we are in 
uh so we want the scanning of all the subtitles  
[18:59] so how can we do this thing we're going to invoke 
action pack and we have to set a special metadata  
[19:08] entry so here we're going to invoke FM pack 
on our input files as we did before so minus I  
[19:18] burst file minus I second file that is the English 
subtitles then another I the Italian subtitles  
[19:33] then what we will need to do is to map these 
files accordingly so what can we do is uh to  
[19:40] take the map uh video from the first file 
and also map the audio from the first video  
[19:52] cool then what we're going to take is from the 
second file we're going to take the subtitles  
[20:00] and the other has the subtitle 
as well so we have a first video  
[20:08] then so video from the first file audio from 
the first file subtitles from the second file  
[20:15] and subtitles from the second file so since 
we have single streams we don't need to map  
[20:21] accordingly this is a to make the things easier 
okay so another thing that we can do is uh to  
[20:30] set the titles accordingly so what can we do is 
to set with the metadata flag so minus metadata
[20:43] the name of the flag so the name of 
the stream the name of the stream  
[20:49] has to be put with the following 
syntax so we got to put metadata  
[20:55] no spaces so a column that 
tells that this is a stream then
[21:03] the we got to put a second s the s 
in this case refers to the subtitle  
[21:11] string so we want to take the first stream 
as subtitles and uh the English language and  
[21:20] the other subtitle as the Italian language 
in an equivalent way we could also uh put  
[21:31] a thing like this so stream two so it does the 
same thing but to be a bit clearer I'm going to  
[21:37] say that this is the first subtitle track and 
what we need to put is a language to be said in  
[21:46] English so the language need to have a certain 
uh think text so with three letters the three  
[21:55] letters are like the iso language style language 
code and in this case the language is English  
[22:04] and then finally we can put our output file 
the output file in this case we can take either  
[22:11] the same in this case so we can take English 
Italian metadata sets so just to have a more  
[22:21] remarkable name um yes so I forgot the thing for 
the Italian language so here got to put metadata
[22:32] again s s one because the second subtitle stream 
is related to the Italian language the language  
[22:41] equals to Eta that is for Italy Italian let's see 
if the command works and now it's working we are  
[22:52] waiting for the result it should be pretty 
fast because we are doing we are performing  
[22:57] um a string copy no it's no way not to perform 
a string copy no I'm I'm wrong so I got to quit  
[23:03] the process here got to put in the end after 
the language the minus C topic so sorry guys
[23:14] I was wrong and now we got the set the languages 
let's see it now it works takes a while
[23:30] but should be pretty fast okay good 
finished and now let's give an FF probe  
[23:36] just to understand if our languages are set 
correctly they should be the metadatum with  
[23:43] the name of the language so here FF probe 
and there's a foreign we just created  
[23:57] and we see that there is the stream for the 
subtitles so the first is for the English the  
[24:05] other is for the Italian so good we did what 
we needed we needed to do if you would like to  
[24:11] play the video also we can open it with the VLC 
and VLC shows here in the subtitles and subtitle  
[24:23] track we got the track one English and the second 
one Italian so that's the thing that we wanted  
[24:30] okay so we uh if we want now to put the subtitles 
as burned on our video so for example we want the  
[24:39] subtitle always be present uh on a video and 
not as a subtitle track we got to heartburn  
[24:47] the subtitles on top of the video this can be 
done using a filter so there is the subtitles  
[24:55] um subtitles filter and it works in this way 
we have a FM pack we invoke the input file  
[25:05] as this in this case we don't um give the name 
of the input in the um in the FM back comment  
[25:15] but we give it as input in the filter subtitles 
that we see later so minus VF or minus filter
[25:25] B subtitles is the name of the filter and then 
we're going to take the name of the file so in  
[25:35] this case uh let's use the English one and then 
we can put as output the name of our file so since  
[25:46] this is a video that uses a filter we cannot 
stream copy we need to re-encode the video so  
[25:53] we got to give the information about the video 
in this case we can put h264 um then we're going  
[26:03] to put the CRF the contrast the concentrate 
factor of zero so it's a pretty big um so big  
[26:13] but preserving the quality presets slow to be 
as slow as possible and then generate a video  
[26:22] with the best quality possible without any nasty 
artifacts and the the audio we can copy it so  
[26:33] we can take the Stream so the video 
must be done from scratch the audio  
[26:40] can be kept so what you can do is something 
like this we put the hard burned subtitles  
[26:53] and here we can change the video to MKV and 
then we can run the program it can take a while
[27:02] and so we are going to wait until the end of 
the processing okay so now the video finished  
[27:11] and we are ready to play it when we play it 
and reach a point where we have subtitles  
[27:20] here we can see that the subtitles are heartburned 
just a little time and see that there is a a slow  
[27:29] system and here you can see that this subtitle 
is hard coded so there is no reference about  
[27:36] the subtitles tracks okay so today we dealt with 
subtitles uh we dealt how to manage the subtitles  
[27:43] and how do they appear at least format a couple 
of formats and then we saw how to include the  
[27:53] subtitles within the videos and also how to 
include the language inside the metadata so  
[27:59] now we have the reference within the video and 
with the different languages if you would like  
[28:05] to put a multi-language subtitles if you want 
to hard burn your uh your subtitles within the  
[28:13] frames you can do it with the filter V subtitles 
and the name of the title file you would like to  
[28:19] put and you had subtitles directly put inside 
the video we don't see the advanced options so  
[28:26] you can change the font you can change the 
style you can change many things you can  
[28:33] also pay particular attention when you crop when 
you trim the video so it takes something in the  
[28:38] middle it requires some particular attention for 
the moment this is the basis with which you wear  
[28:46] um you can work with if you want to deal with 
subtitles so thank you very much for watching  
[28:51] if you reach this point uh I suggest 
to like share and subscribe and hit  
[28:56] the notification Bell here down below and 
thank you very much and see you next time  
[29:00] with new content regarding multimedia streams 
and FM pack and much much more so bye ciao ciao
[29:22] thank you