Ffmpeg Overlay Video

Why? for H264 no problem. Before being dilated, the colouring of the arrows is extracted from the original video by 'colorkey' overlay. DASH is an adaptive bitrate streaming technology where a multimedia file is partitioned into one or more segments and delivered to a client using HTTP. Hi I try to insert a logo as overlay and would like to insert a text on top the cmd line I am using is ffmpeg -i smptebars. FFmpeg Batch AV Converter is a front-end for Windows ffmpeg users, that allows to use the full potential of ffmpeg command line with a few mouse clicks in a convenient GUI with drag and drop, progress information, You can change encoding priority, pause and resume, set automatic shutdown. By natively integrating the NVIDIA Video Codec SDK, XSplit is able to offload the video encoding for both the recording and the live stream from the CPU to the GPU, allowing our users to produce high quality content without compromising on gaming performance. Automating Campaign Videos with Twilio and FFmpeg. There is already a question with only one overlay, but I want to add multiple videos at the same time (to avoid multiple encodings). The -map doesn't seem to recognize the movie filter's audio at all. I have two images, one is a thumbnail generated from a video and another is a static "play" button. You want to supply two input files, offset one with -itsoffset by specifying a (positive) delay value, use the -filter_complex overlay, and then use the -map options to select the proper streams to put it back together. As far as video goes, everything works, the videos are in sync. fr/shaarli/ http://www. The FFmpeg multimedia library 3. In particular, vmix 23 crack 2020 merge movies and mix them with a lot of different video definitions completely with HD and SD plus 4K movies. Can you guys help me?. 2 combine seperate videos into one, side by side. The name of the command is the name of the option and the argument is. 比如,我有这么一个图片 想要贴到一个视频上,那可以用如下命令:. FFmpeg and its photosensitivity filter are not making any medical claims. Reference here. VLC (initially VideoLAN Client) is a highly portable multimedia player for various audio and video formats such as MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg,. I am trying to create a simple overlay graphic where the overlay moves and screen and changes speed according to time. The watermark video is some white animated stuff with a black background. 264 encoded MPEG transport stream from a single png file with a text overlay. Playing from PC (mplayer/vlc) everything looks normal and audio&video are in sync. The two can be combined with the following command:. FFMpeg – The swiss army knife of Internet streaming – part II FFMpeg – The swiss army knife of Internet streaming – part III FFMpeg – The swiss army knife of Internet streaming – part IV. Advanced video editing features that allow merging of different clips, ingesting/upload of edited clips as new content, or exporting video frames as images or photos 4. command encode video: ffmpeg -i video. Then you don’t have to worry about. 3) for Delphi and C++Builder. By Drew Strojny on August 30, 2013 Here at The Theme Foundry we sell WordPress templates and host quite a few tutorial videos over in the Help Center. -maxrate (FFmpeg) Specifies the maximum bitrate at any point in the video. We are the backbone of your immersive live sessions. If x = 320 and y = 240, that means that the upper left corner of a video feed is located at 320 by 240. I think, this problem not a VLC problem. ass Same as the subtitles filter, except that it doesn't require libavcodec and libavformat to work. 1 how to combine two seperate videos into one left-right 3d video 1. node-red; Publisher. Original video has dimensions 72:48px. I have two images, one is a thumbnail generated from a video and another is a static "play" button. However, many sound applications use a GUI environment playing a video (or similar), possibly with text overlays such as subtitles. overlay (main_parent_node, overlay_parent_node, eof_action='repeat', **kwargs) ¶ Overlay one video on top of another. Re: [FFmpeg-soc] [PATCH] updated! vf_overlay alpha patch and watermarking using PNG with alpha. png -vf drawtext=". I did it using ffmpeg, following @williangalvani suggestion, the subtitles were edited manually with the data gathered from. It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter. Nor has this filter been tested with anyone who has photosensitive epilepsy. With other formats (like the popular mp4, webm or mkv) it is not possible to merge videos like this because of the formats. mp4) in background. The power of FFmpeg on Android. Though with the help of ffmpeg I was able to make a new video with the overlay image. mkv -i image. Example ffmpeg commands fmpeg is a powerful command-line tool for manipulating video files and movies. The video will also still be scaled in one dimension if the source uses non\-square pixels (e. FFMPEG Converter For Android is a wrapper of FFMPEG APIs(version 3. mp4 800×450. Done some initial reading into FFmpeg and read this question. In this case, we want to overlay the input [1] (the Wolox logo) over the input [0] (The. Then you don’t have to worry about. This is done in order to speed up the video display, and it is commonly used, for example, by TV tuner cards and early 3D graphics accelerator cards. The overlay filter, requiring two video inputs, uses the first two unused video streams. You probably can make some improvements by making target image dimensions less and some ajustment with size/ratio/framerate, but it for sure will change final quality and image. The audio from the first video should be kept. If your image being overlaid is RGB colorspace (such as most PNG images) you may see a visual improvement if you add format=rbg to your overlay. Tiago has 6 jobs listed on their profile. mp4 -tune psnr -refs 3 -c: v libx265 -preset veryslow -crf 33 -vf scale = 640x360 videoencode. I didn't have a working video editor. Those are the streams from A. I'am using external camera with ffmpeg to acquire underwater live stream. $ ffmpeg -i input_video-target ntsc-dvd \ -s 720x360 -padtop 60 -padbottom 60 -padcolor 000000 -aspect 4:3 output_video. Search here for Ffmpeg overlay transparent pngs clipart collection out of 10 ready to use vector and photo images. Backend is Go/Ruby. Automating Campaign Videos with Twilio and FFmpeg. Old Search System: IFFMPEG Feedback (version 0. Since we live in the epoque of Snapchat, Instagram and other visual social networks, lot’s of people started to get obsessed with cool and funny video effects. See How to speed up / slow down a video for examples. png \-i overlay_video. mp4 and image file image. You can use subtitle filter and create subtitle file with all those information - such file can be created more or less automatically but also probably in few steps. jpg -hide_banner. Cassette offers a carefully chosen set of parameters to impart the unique character and sonic imprint of an often maligned recording medium. I have created the FFmpeg Command Generator above to help you to easily generate FFmpeg commands to convert or merge video and audio files, but if you want to take advantage of all the. I have many videos and I need to put an image in front of them for about 5 seconds, but adding it manually and rendering it each time would take really long, so I am asking if it is possible to do so via ffmpeg and if you could, please, help me out with it since I have no experience with ffmpeg. FFmpeg Basics: Multimedia handling with a fast audio and video encoder [Frantisek Korbel] on Amazon. 1 just want to play two files side by side 1. by Dean E January 11, 2017. Ffmpeg overlay transparent pngs clipart collection. jpg -hide_banner. It includes the following library versions: libavutil 56. Custom solution services are also available to answer particular use-cases. overlay and drawtext. We call it because it is an easy operation. Let's do the same thing but for a. A master_video. Playing from PC (mplayer/vlc) everything looks normal and audio&video are in sync. x – Set the expression for the x coordinates of the overlaid video on the main video. It will mix video and audio effects. Done some initial reading into FFmpeg and read this question. Sharing videos externally over the internet allowing non system users to view or download low res copies of shared videos. mpg -vf "movie=wm. I just updated it (2. Up next Programming in Visual Basic. This code works great: ffmpeg -r 1/4 -i img_%03d. It includes libavcodec - the leading audio/video codec library. txt, this file contains thousands of lines of text that look like the following:. Filters in the same linear chain are separated by commas, and distinct linear chains of filters are separated by semicolons. In particular, vmix 23 crack 2020 merge movies and mix them with a lot of different video definitions completely with HD and SD plus 4K movies. Seems like ffmpeg can't very well handle overlay of blurred semi-transparent primitives of different color. We use cookies to ensure that we give you the best experience on our website. I would like to overlay another video on top of overlay. How to overlay text on the video at a specific window position. Those are the streams from A. FFMPEG filters provide a powerful way to programmatically enhance or alter videos, and it’s fairly simple to add a watermark to a video using the overlay filter. Stack Exchange Network. anamorphic widescreen DVDs). I understand how to draw static text for a > certain duration, so my plan was to chain multiple of these filters > together to make a dynamic text overlay, but I didn't find a way to do > two or more drawtext filters. Here is a link to the documentation This is also a quick snippet you can try. Similarly the first video stream in the second input is linked to the second (overlay) input of overlay. Up next Microsoft word tutorial |How to insert images into word document table - Duration: 7:11. Thanks - C. Use ffmpeg to overlay a video inside a master video or picture in a picture. Here’s how to install it in Ubuntu 14. x – Set the expression for the x coordinates of the overlaid video on the main video. Autoplay When autoplay is enabled, a suggested video will automatically play next. The CamDo Solutions Bullet is a great piece of kit, allowing simultaneous activation of multiple GoPro cameras. fr/shaarli/. Before being dilated, the colouring of the arrows is extracted from the original video by 'colorkey' overlay. For this example I use two videos. (``vo-drop-frame-count`` property. mpg -map 0:3 -acodec aac -b:a 192k -ar 96000 -vn output. Granted, the lack of quality free video editors on Windows / Linux leaves something to be desired. above - input 0 is video, input 2 is subtitles, for the overlay. Can you guys help me?. If you continue to use this site we will assume that you are happy with it. Wavesfactory has announced the release of Cassette, a tape emulation audio plugin based on the sound of several cassette tapes and decks. I'am using external camera with ffmpeg to acquire underwater live stream. Video overlay is any technique used to display a video window on a computer display while bypassing the chain of CPU to graphics card to computer monitor. mpg): ffmpeg -f lavfi -i testsrc. You can use subtitle filter and create subtitle file with all those information - such file can be created more or less automatically but also probably in few steps. This class is a wrapper around the FFmpeg, FLVTools2 and Mencoder programs to allow PHP developers to manipulate and convert video files. Up next Programming in Visual Basic. Front and Rear videos need to be combined. jpg -hide_banner. The CamDo Solutions Bullet is a great piece of kit, allowing simultaneous activation of multiple GoPro cameras. The -map doesn't seem to recognize the movie filter's audio at all. I would like to create a single 10 minute video clip measuring 1280x480 (in other words, I want to place the videos next to each other and play them simultaneously, mixing audio from both clips). Normally, you'd do this in Linux, but there's also a Windows version of ffmpeg. This is what tells ffmpeg the size of the font we want. Playing from PC (mplayer/vlc) everything looks normal and audio&video are in sync. Code FFMPEG Lách Âm,Thêm Viền,Overlay Video nền Thấy group dạo này không có nhiều chia sẻ nên mình share code vừa mới sửa lại một chút từ code bạn Phương Thùy cho 1 chủ đề mình đang chơi vì mỗi chủ đề sẽ có cách render khác nhau. Overlay them over background video sequentialy. This chapter has nothing to do with sound. Net How to Connect Access Database to VB. See the FFmpeg documentation for additional information. & video are out of sync. fr/shaarli/. I am trying to create a simple overlay graphic where the overlay moves and screen and changes speed according to time. This example will create a 10 second output, 30 fps (300 frames total), with a frame size of 640x360 (testsrc. 4 “Cantor” was released earlier today. Here is an example. See the documentation on the overlay video filter for more information and examples. I'm trying to do some overlay with ffmpeg, but as far I see, I think the overlay filter is not GPU accelerated, is any way to do it the GPU way? (ffmpeg or others, provided it's fast) Here is my working CPU only solution: ffmpeg -y \-i background. I have a video input. I have created the FFmpeg Command Generator above to help you to easily generate FFmpeg commands to convert or merge video and audio files, but if you want to take advantage of all the. Overlay Is the instruction for FFmpeg command to overlay 2 sources. mkv Here [0:v] refers to the first video stream in the first input file, which is linked to the first (main) input of the overlay filter. I'am using external camera with ffmpeg to acquire underwater live stream. Note that this filter is not FDA approved, nor are we medical professionals. The power of FFmpeg on Android. given a video "video1. hi i have a video around 30 second and i want to set overlay image between 5 - 10 second only and play remaining video as per as. Requires the VBV buffersize to be set. Created in 2000, it is a powerful command-line tool that runs on Linux, Windows, and Mac. I also added a feature to add a watermark to a video. > I am trying to find a way to use filters to draw dynamic text in the > same location on my video. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Playing from PC (mplayer/vlc) everything looks normal and audio&video are in sync. png -vf drawtext=". I am trying to use FFmpeg to overlay one video on top of the other using an additive blend. Reference here. I was only able to produce a screenshot at an specified time using vframes example from their documentation page using the code below. mp4 and image file image. FFMPEG Image overlay Fade in and out on Video not working properly,,. overlay技术中涉及两个窗口,通常把较大的窗口称作背景窗口,较小的窗口称作前景窗口,背景窗口或前景窗口里都可以播放视频或显示图片。FFmpeg中使用overlay滤镜可实现视频叠加技术。 overlay滤镜说明如下:. In the past, we've worked with FFMPEG as a conversion tool, but in fact, this little command line utility is so much more! We kick off this two-part series by first delving into some of the more. How can I add text overlay on my video in ffmpeg? i. By natively integrating the NVIDIA Video Codec SDK, XSplit is able to offload the video encoding for both the recording and the live stream from the CPU to the GPU, allowing our users to produce high quality content without compromising on gaming performance. Custom solution services are also available to answer particular use-cases. 100 libavdevice 58. Description. Thanks - C. 2 为视频添加logo. Add sound tracks to a video file with FFmpeg December 2, 2012. o Overlay=shortest=1 enables the video to end as soon as the shortest video feed ends. DashWare makes your videos great! Overlay any telemetry data right onto your videos. FFmpeg Batch AV Converter is a front-end for Windows ffmpeg users, that allows to use the full potential of ffmpeg command line with a few mouse clicks in a convenient GUI with drag and drop, progress information, You can change encoding priority, pause and resume, set automatic shutdown. The points where the. FFmpeg and its photosensitivity filter are not making any medical claims. dmgig_admin. Hey all, ffmpeg newbie here - I have an image that has transparency in the middle, and around the edges - overlay. This will cause problems if your encoding pipeline drops frames. FFmpeg is a multiplatform, open-source library to record, convert and stream video and audio files. Furthermore we can omit the output label and the single output from the filter graph will be added to the output file automatically, so we can simply write ffmpeg -i video. Reference here. So, numeric values I used are just for test. la-pub-dans-les-films. png \-i overlay_image. png -filter_complex 'overlay=10:main_h-overlay_h-10' out. As everything was post processed twice, it took a long time to reencode all the videos. If I compile latest SVN ffmpeg without patched libavfilter videos are working also in Android tablet and other mobile devices. jpg -i audio. Dashcam saves video in 5-minute chunks. Ultimately, if you want an incredibly fancy video, do not rely on ffmpeg to splice and merge and overlay and juxtapose all your layers together, to crop and pan and rotate, to apply effects and transitions and every other form of video processing to your image sequences; finish the production outside of R, because that is what makes sense. Help with image watermark for video (self. Open to using a new language. The FFmpeg multimedia library 3. //ps: 如果540不写,写成-1,即scale=960:-1, 那也是可以的,ffmpeg会通知缩放滤镜在输出时保持原始的宽高比。 8. mp4 pause and this is the watermark command. This is what tells ffmpeg the size of the font we want. You can use them for free. this is my first post. 3gp movie file to be played back on a 3G cellphone. SSA subtitle file. One video is the actual video I want to transcode, the other is a ~10 second long video I want to put into one corner, sort of an animated watermark. The video will also still be scaled in one dimension if the source uses non\-square pixels (e. mp4 is sent to the hue filter, whose output is cloned once using the split filter, and both outputs labelled. Video LightBox Business Edition additionally provides an option to remove the VideoLightBox. avi" output_video. png -filter_complex "overlay = 10: 10" videofull. FFmpeg is a multiplatform, open-source library to record, convert and stream video and audio files. "pipe:1" - stdout" |" - to connect two command together so that the output of one program becomes the input of the next program. I would like to create a single 10 minute video clip measuring 1280x480 (in other words, I want to place the videos next to each other and play them simultaneously, mixing audio from both clips). 3D Post Processing (Shaders). avi" output_video. ffmpeg -i video. I stream mp4s thru Wowza streaming server to a mobile devices. I will show how I stream my desktop with audio from pulse and webcam from video4linux2. I want a script that I can run on Windows or Mac that uses FFMPEG to overlay an intro/outro to a video. com credit line as well as a feature to put your own watermark to videos. The result will be that the top half of the video is mirrored onto the bottom half of the output video. Understandably, most people are a little lost when it comes to using command-line programs like FFmpeg. CamDo Bullet and Blink - How to create a quick Bullet Time Slice or Time Lapse video with FFmpeg. png -filter_complex "overlay = 10: 10" videofull. See the FFmpeg H. In our example, crop,vflip are in one linear chain, split and overlay are separately in another. Show more Show less. Inside the quotes you can type whatever you want, and ffmpeg will overlay the video with your text. FFMpeg – The swiss army knife of Internet streaming – part II FFMpeg – The swiss army knife of Internet streaming – part III FFMpeg – The swiss army knife of Internet streaming – part IV. Hi, so I'm trying to resize a png watermark image, and then overlay it to an video like so: ffmpeg -i input. /ffmpeg -i input. In case you are unfamiliar with the video-filter (-vf) switch of ffmpeg , go over to this page to see some examples of how to, for example, embed the current time and date into the video portion of a video file. I think you've overcomplicated things, you have the start of your answer. 1 how to combine two seperate videos into one left-right 3d video 1. You want to supply two input files, offset one with -itsoffset by specifying a (positive) delay value, use the -filter_complex overlay, and then use the -map options to select the proper streams to put it back together. winks: ksvideosrc: KsVideoSrc. ``Dropped: 4``. Already 19 visitors found here solutions for their art work. If you can't find the sub streams with ffmpeg -i or ffprobe it's probably. Every project on GitHub comes with a version-controlled wiki to give your documentation the high level of care it deserves. The two can be combined with the following command:. I will show how I stream my desktop with audio from pulse and webcam from video4linux2. The FFmpeg multimedia library 3. Nor has this filter been tested with anyone who has photosensitive epilepsy. By natively integrating the NVIDIA Video Codec SDK, XSplit is able to offload the video encoding for both the recording and the live stream from the CPU to the GPU, allowing our users to produce high quality content without compromising on gaming performance. - Dropped frames, e. Love ffmpeg! I was trying to do something the other day and couldn’t figure it out, if anyone has any ideas. New:Support Mac OSX 64bit , dropped Mac OSX 32bit support. How can I burn vobsub subtitles using ffmpeg? Ask Question Asked 5 years, 9 months ago. Note that you cannot use -c copy to copy video streams – you will have to tell FFmpeg to re-encode. la-pub-dans-les-films. They all refer to concatenating when I search for. A license fee is required for use on a commercial website. The video was created by taking two parts of a video call and doing the following with FFMpeg: Put remote video (remote. Today I made a watermark of sorts to overlay over my videos. The name of the command is the name of the option and the argument is. "-vf " - for creating filter graph on video. 1 was released on 2019-09-07. How to Add a Watermark to Video. Android App Development: How to Overlay Video on a Video. if it doesn't work test a simple record of video 1 and after of video 0 and check their properties (type, resolution, fps). Understandably, most people are a little lost when it comes to using command-line programs like FFmpeg. ffmpeg -i “concat:video1. FFMPEG Watermark process if very slow I'm using laravel ffmpeg pascalbaljetmedia package how I can add watermark on videos? Merge two video side by side ffmpeg?. Love ffmpeg! I was trying to do something the other day and couldn’t figure it out, if anyone has any ideas. FFmpeg and its photosensitivity filter are not making any medical claims. mp4 800×450. Help with image watermark for video (self. We use cookies to ensure that we give you the best experience on our website. You can record the video then you can edit it as you want. Then you don’t have to worry about. After blasting support messages to both my software developer and dreamhost support, it seems that DH are using ffmpeg version 0. FFmpeg: Extract foreground [moving] objects from video This is a somewhat crude implementation, but given the right source material, an acceptable result can be generated. The overlay filter accepts two parameters that give the position of the overlaid video on top of the base video. I need to do the water marking/Image or Text overlay in my device stream. These are arranged on top of the main video file and then are baked together as one file. VLC (initially VideoLAN Client) is a highly portable multimedia player for various audio and video formats such as MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg,. They all refer to concatenating when I search for. pi @ raspberrypi:~ / git / RetroArch $ make-j4. However, many sound applications use a GUI environment playing a video (or similar), possibly with text overlays such as subtitles. --vbv-bufsize (x264)-bufsize (FFmpeg) Depends on the profile level of the video being encoded. I'm trying to do some overlay with ffmpeg, but as far I see, I think the overlay filter is not GPU accelerated, is any way to do it the GPU way? (ffmpeg or others, provided it's fast) Here is my working CPU only solution: ffmpeg -y \-i background. Great for GoPro, GoProHD, Contour, ContourHD, ContourGPS, cycling / mountain biking / MTB, mortorcycling, auto racing, autocross, skiing, snowboarding, RC / UAV / drone vehicles, the possibilities are endless. When using ffmpeg to compress a video, I recommend using the libx264 codec, from experience it has given me excellent quality for small video sizes. In particular, vmix 23 crack 2020 merge movies and mix them with a lot of different video definitions completely with HD and SD plus 4K movies. Gstreamer Udpsrc. The method shown here is somewhat smartly written than the one shown earlier. Understandably, most people are a little lost when it comes to using command-line programs like FFmpeg. I think, this problem not a VLC problem. pi @ raspberrypi:~ / git / RetroArch $ make-j4. ffmeg write text on a video - Forum dedicated to FFmpeg; a free / open source multimedia software project that produces libraries and programs to record, convert and stream audio and video. FFmpeg está desarrollado en GNU/Linux, pero puede ser compilado en la mayoría de los sistemas operativos. FFMpeg – The swiss army knife of Internet streaming – part II FFMpeg – The swiss army knife of Internet streaming – part III FFMpeg – The swiss army knife of Internet streaming – part IV. exe C# Wrapper" using FFmpeg. Granted, the lack of quality free video editors on Windows / Linux leaves something to be desired. The CamDo Solutions Bullet is a great piece of kit, allowing simultaneous activation of multiple GoPro cameras. mpg -vf "movie=wm. First of, the overlay is in 1920x1080. la-pub-dans-les-films. Question: Tag: batch-file,cmd,insert,windows-7-x64 I want to insert lines of text between different lines of text, For example: I am Running on Windows 7 x64. 6 Changing options at runtime with a command. exe via commandline parameters to extract frame images. 3 rio; Support Dash; New 3DPlayer demo for Mac OSX that run 100% faster than 2D Player. flv", how can I add "StackOverflow" text during the whole video, positioned in the middle of the screen, with white tex. The audio from the first video should be kept. If your image being overlaid is RGB colorspace (such as most PNG images) you may see a visual improvement if you add format=rbg to your overlay. Autoplay When autoplay is enabled, a suggested video will automatically play next. Android App Development: How to Overlay Video on a Video. VLC (initially VideoLAN Client) is a highly portable multimedia player for various audio and video formats such as MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg,. After that, you can then upload it to your YouTube channel on the DailyMotion channel. When using ffmpeg to compress a video, I recommend using the libx264 codec, from experience it has given me excellent quality for small video sizes. The easiest way to install ffmpeg is to download a pre-built binary for your specific platform. Dynamorse processing nodes using FFmpeg for Node-RED. I understand how to draw static text for a > certain duration, so my plan was to chain multiple of these filters > together to make a dynamic text overlay, but I didn't find a way to do > two or more drawtext filters. ffmpeg -y -i test. 1 was released on 2019-09-07. text='This text was generated via ffmpeg' This is the command that tells ffmpeg what text we want to overlay on the video. V4l2 Example V4l2 Example. ac3 Convert the third (-map 0:3) DTS audio stream to an AAC file with a bitrate of 192 kb/s and a sampling rate of 96000 Hz: $ ffmpeg -i video. png \-i overlay_video. Hi falling asleep in front of the PC while trying to fix this. FFmpeg Basics: Multimedia handling with a fast audio and video encoder [Frantisek Korbel] on Amazon. Skip to main content. This chapter has nothing to do with sound. Process an Entire Directory of videos (with one command) I then combined the 3 above into one ffmpeg command in a ‘do-loop’ and converted an entire directory of over a hundred. One video is the actual video I want to transcode, the other is a ~10 second long video I want to put into one corner, sort of an animated watermark. 3) for Delphi and C++Builder. Love ffmpeg! I was trying to do something the other day and couldn’t figure it out, if anyone has any ideas. mp4 overlay 滤镜将一个视频叠放在另一个视频上,可用于在视频中添加水印和动画等操作。. You can use subtitle filter and create subtitle file with all those information - such file can be created more or less automatically but also probably in few steps. command encode video: ffmpeg -i video. la-pub-dans-les-films. 2 为视频添加logo. This diversion is about programming the video side of this, using FFMpeg, Gtk, Cairo and Pango. ffmpeg -i video. Why? for H264 no problem. See the documentation on the overlay video filter for more information and examples. - Dropped frames, e. What follows the -vf in an ffmpeg command line is a filtergraph description.