I have a collection of DVDs I need to put in storage to clear up some space. This page lists what I have learned about how to take DVD video and create a video file as a result.
This guide shows you how to extract DVD subtitles with this free DVD subtitle extractor. Step 1: Launch SubRip, click the 'VOB' button in the toolbar. Then the window below will open. Follow the next steps: (1). Click 'Open IFO' and load the first.IFO file of the DVD. There should be 4 or more VOB files of a big size (size appears in the right). To extract more subtitles at once you have to duplicate the -map parameters for each file. Also include -c copy so that it just extracts the file without trying to process it: ffmpeg -i Movie.mkv -c copy -map 0:s:0 subs.01.srt -c copy -map 0:s:1 subs.02.srt. Anyway it will take long time because ffmpeg must read whole video file to find all.
There are many other articles on the subject, such as this one.
A DVD usually has two directories on it, AUDIO_TS and VIDEO_TS. For DVD videos we only care about the VIDEO_TS directory.
Inside the VIDEO_TS directory there are a collection of files, e.g.:
We’re only interested in *.VOB files, and generally anything after VTS_02_* as VTS_01_* is usually the contents page for the DVD.
So, we want to make a video out of the VTS_02_*.VOB files. Before we can proceed any further it is necessary for us to make a single, continuous .mpeg file. Be warned, however, this file will be large (3 gigabytes for 45 minutes).
Thus we want to have an input file that is a concatenation of the VOB files, in order. We use the input file type of concat:file_1:file_2:…
Again, before we proceed further, we need to find out what streams are in the source video:
Now, when we create our intermediate (temporary) .mpeg file, we need to specify which streams we want to extract. By default ffmpeg only extracts the best video and best audio stream it can find. If we want to keep all our audio streams then we have to explicitly tell ffmpeg this using the -map directive, one per stream we want to keep, in order.
In this case I want to keep streams 0:1 (video), 0:3 (5.1 audio), and 0:4 (audio stereo). But actually I want the stereo track to come before the 5.1 audio, so I’ll use the following command to make my intermediate file:
So now we have an intermediate file. It is from this we can create the desired output.
You might have an encrypted region-specific DVD. In this case the ffmpeg tool will not work by itself. A tool that will read encrypted DVDs is a port of ffmpeg called vgtmpeg. There are Windows and Linux builds available. This uses the same command line except for the input you specify an input of something like:
Note that region-coded DVDs will not work in a DVD drive that has no region code set (some new drives have no code initially configured). In Linux you can set a drive’s region code (a maximum of 5 times) using the command-line tool regionset. Once the drive’s region has been set, however, the vgtmpeg tool should work with a drive from any region even if it is different from the drive’s specified region.
Now you can compress the intermediate file.
You will probably want to tinker with the settings to suit your preferences.
First you have to specify which streams you want to encode, again. You may be forced to specify the display aspect ratio. And you may wish to add metadata (descriptions) to the audio channels (and subtitles if you use them).
Here are some settings for an example:
Remove Subtitles From Mkv Ffmpeg
The -map directives select what streams we want from our input file.
The -c:v libx264 directive selects the video codec. The -preset option chooses an H.264 encoding speed to compression ratio. The -b:v option specifies a constant output bitrate (you can use two-pass encoding if you wish to utilise a different strategy). The -aspect 16:9 may not be necessary but forces the default display by the client reading the file later. The -strict -2 options are required for H.264 encoding. The -g 50 option makes the encoder store a whole image frame every 50 frames (useful for being able to forward or reverse into the video). The -vf yadif video filter de-interlaces the source video.
The -c:a:0 option sets the audio codec on the first audio stream (which is different from the stream number assigned). The -b:a:0 option sets the bit rate for the first audio stream. And the -metadata:s:a:0 option sets a title for the stream, which can make it easier for those watching your video to choose an appropriate named audio track rather than guessing what the difference is.
Finally the output file name is specified.
Audio
A guide to high quality audio with ffmpeg is documented on the ffmpeg wiki.
A 5.1 stream is perhaps better encoded using the “ac3” (Dolby Digital) codec.
If you want to convert a 5.1 stream to stereo you can use the following to select a particular audio stream and apply a filter to it:
Subtitles
DVD subtitles may not appear in the first VOB file in a set; it may be necessary to tell ffmpeg to scan ahead deep into the file so that it can find the subtitles in the second VOB file. The directives to do this are -probesize and -analyzeduration – the first being the number of bytes to read ahead into the file, and the second being the number of microseconds (of which there are 1,000,000 per second). These directives must come before the input file directive.
So, to scan ahead 4GB and 1 hour, the an example command may be:
You can specify a title to go along with a subtitle track, such as:
We extract subtitles from videos for different purposes. For example, we extract the subtitles of a low-resolution video file, and then add them to a high-resolution version for getting a better visual experience. We find nice courses from YouTube and wish to separate subtitles as the learning context for further study. With that in mind, the following can be deduced: To find the easiest way to extract subtitles from MKV, MP4, AVI, VOB or other videos as SRT, ASS files, we should get a versatile subtitle extractor that can cope with videos in a different type of formats.
After testing a majority of subtitles extractor for days, we realize the best option for both PC and Mac - VideoProc, which enables users to split subtitles from MKV videos or virtually any other videos in a few clicks. Meanwhile, it allows you to import subtitles to a video from a computer or a connected external hard drive/USB, as well as search subtitle files from online before importing to videos. By the way, you're also allowed to extract subtitles from MKV with subtitles Edit and MKVToolnix.
Click-and-go Subtitle Extractor & Full-fledged Video Processing Software - VideoProc
- Extract subtitles from MKV, MP4, AVI, VOB, etc. Add (srt, ass, ssa) subtitle files to movies.
- Simple edit is to cut, crop, merge, rotate, flip videos; add effect, image watermark to videos, etc.
- Convert any videos to any preferred format; resize/upscale videos. Video processing speed is ultrafast.
- Free download video/music/live streaming videos from YouTube and 1000+ sites.
- Built-in recorder is capable of capturing anything on your screen with system sound and voice-over.
Ffmpeg Extract Subtitle From Mkv
What Is the Best Subtitle Extractor for PC and Mac
A subtitle extractor is a tool that can help you rip the subtitle part from a video file and output it as a subtitle file such as .srt, .sub, .sbv and .ass. Some subtitle extractor can help you search for movie subtitle online and batch extract subtitle files.
VideoProc is the best subtitle extractor as well as a lightweight video editor, converter, screen recorder. You can use it to:
1. Extract subtitles from MKV, MP4, AVI, VOB, etc. to separated SRT or ASS file. It supports also batch extract mode to easily extract the same element from multiple files.
What is the SRT?
SRT refers to Sub Rip text, which is the most basic format for subtitles, which is often used in movies. It is a simple text file without any rich media information like videos, animations. Open SRT file with a text document or Microsoft word, we can easily edit the start and end time of when the subtitle appears and change subtitle information.
What is the ASS?
ASS stands for Sub Station Alpha, which is an advanced subtitle format developed to cover the shortage of SRT which has a too simple function. It will implement abundant subtitle functions, for instance, setting size and position of different subtitle data, dynamic text, watermark, etc. Ass is created by the Substation Alpha software program, therefore it is more standardize and way more complicated than SRT.
2. Add subtitles:Add hardcode subtitles, embed SRT ASS file to MP4/MKV/AVI/MOV without decreasing the quality of the target video file. A one-stop subtitle editor app to solve all problems about adding or removing subtitles for the clips.
3. Process with hardware acceleration: Seamlessly support Nvidia/Intel/AMD hardware acceleration tech to deliver lightning speed in extracting subtitles. The whole file must be read by software as the data packets of the subtitle are interwoven with various file information packets. GPU acceleration fasts the whole process.
4. Identify tracks easily: If you have some clips with multiple subtitle tracks, it will display their language and file size information for you to easily differentiate between them.
5. Download subtitle/video/music: Download subtitles, 8K/4K/1080p/720p videos, movies, MP3 songs, playlist from YouTube, Vimeo, Dailymotion, 1000+ sites supported.
6. Edit video: Cut, merge, crop, rotate, flip, stabilize, denoise, mirror video, add effects, text/image watermark, time stamp to video, and enhance video quality.
7. Convert video/music: Convert or compress 4K or high bitrate/framerate videos recorded by GoPro, DJI, 4K cameras, etc. Transcode HEVC, MKV, AVCHD, M2TS, MP4, AVI, MOV and almost any format to desired format.
How to Extract Subtitles from MKV with VideoProc
Free download and install the best subtitle extractor – VideoProc – on Windows 10/8/7 or Mac computer, etc. and follow the easy 3 steps below to extract subtitles from MKV, MP4, etc.
Step 1. Add the video with subtitle
Run VideoProc and click the Video button on the main interface. Click the +Video button to import source video with subtitle.
Step 2. Select output subtitle format
Tap the Toolbox icon in the lower area. Find the Export Subtitle option and double click it. Then select an output subtitle file format. You can also extract a part of subtitles using trimming. Click Done.
Note: If there is no Export Subtitle option in the Toolbox, you can head to Target Format at the lower left corner and search for Export Subtitle in the field. Then, the subtitle extractor will be available.
Step 3. Extract subtitle from video
Hit RUN button to start extracting subtitle from MKV, MP4 or any other video as SRT or ASS subtitle file at ultrafast speed.
Besides VideoProc, you can use other tools to extract subtitles. Here we recommend Subtitle Edit and MKVToolNix. See how to extract subtitles from MKV with these two programs below.
How to Extract Subtitles from MKV with Subtitle Edit
Subtitle Edit is a free and open source software dedicated to helping people create, edit, translate, sync, convert, as well as extract subtitles from MKV and other video formats. It's available in 34 languages and is capable of reading and transcoding between 280+ subtitle formats, such as SubRip, ABC iView, Adobe Encore, Avid, Sony DVD Architect and many more. More so, you are allowed to synchronize subtitles with your movie with its waveform controls and visual sync. You’re able to rip or extract subtitles from videos so that you can modify, archive or even share.
Step 1. Navigate to SubtitleEdit at GitHub and download its latest version to your computer. It runs on both Windows and Linux computers.
Step 2. Open Subtitle Edit when it is good to go.
Step 3. Head to where your video is located, then drag and drop it to the subtitle editing area. Subtitle Edit will read all subtitle tracks embedded in the video. Choose the one you want to extract.
Step 4. Go to File >Save as > name your file, select a subtitle format and a location when the box prompting > Click Save to confirm your changes.
How to Extract Subtitles from MKV with MKVToolNix
MKVToolNix is a robust tool package to create, merge, view, and alter Matroska files under Windows, macOS and Linux. It supports the encapsulation of a variety of videos, audio tracks and subtitles, and other files into an MKV file. In this way, you don't have to jump back and forth between files. Besides, you can use it to extract videos, music and subtitle files from MKV files if you need to make some adjustments to the files. To extract subtitles from MKV using MKVToolNix, go through the tutorials in the following.
Step 1. Download MKVToolNix and gMKVExtractGUI to your computer at the same time. Because they're a set of tools and gMKVExtractGUI won't run without MKVToolNix.
Step 2. Launch gMKVExtractGUI and import your MKV video to the program.
Step 3. Tick the subtitle track you will separate.
Ffmpeg Extract Subtitles From Ts
Step 4. Set an output directory to store subtitle files.
Step 5. Click Extract in the lower right corner.
Video Subtitles FAQs
1. How to Delete SRT/ASS Subtitle from MKV/MP4/AVI/VOB Videos?
Subtitles help us understand foreign movies and allow people who are hard of hearing to better comprehend the plots. But there are times we don't want to remain any subtitles on the source video for the aim to add the new, further study the language, etc. Follow below 2 steps to remove subtitles from MKV, MP4, AVI, VOB, etc.
Step 1. After we import the video file to VideoProc, Click Subtitle >Disable.
Step 2. Hit Run to export the video.
2. How to Add SRT/ASS Subtitle Files to a Video?
VideoProc allows users to add subtitles to a video, such as to import external SRT subtitles to videos. Let's have a few clicks to get the things done:
Step 1. Click the Subtitle drop-down menu in the source video column, and click Load Subtitle.
Step 2. Select the SRT/ASS subtitle file from your computer and add it to the video.
Or you can have some advanced setting to change the fonts, position, and color of subtitles by following steps.
Step 1. Click the Subtitle icon in the Edit column.
Step 2. Click Add Subtitle File to choose and import SRT/ASS subtitle file from the computer.
You can choose Burn-In to add hardcode subtitles or select Softcode to add captions to video. The later one allows you to turn on/off in playback, while the former one does not.
There are settings about subtitle size, position, color, and others for you to make adjustments to the displayed subtitles.
3. How to Download SRT Subtitle from Online Sites and Import to videos?
VideoProc also enables users to search subtitles, download subtitles online and import to video.
Step 1. Click the Subtitle icon to open the subtitle editing window.
Step 2. Click the Search Subtitle File. Then choose either Movie or TV Episode, type movie name in the field, and choose movie language.
Step 3. Click the Search button. Choose a preferred subtitle file and click Download.