Questions about video editing, streaming, conversion, capturing or video output. Use a more specific tag if possible.

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27 views

How do understand why a stream lags?

I am trying to play a video stream on my home computers which address is of the type someserver/username/password/1234.ts. So essentially, I just use VLC but the stream keeps buffering all the time. ...
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0answers
123 views

FFMPEG Trying to restream a RTSP stream to HTTP

I have been trying top cobble something together to take a RTSP feed from a IP camera and re transmit it in HTTP. I am trying to get the feed in to my home automation app which does not support ...
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0answers
14 views

How can I redirect URLs using regexp?

When using youtube I find the pages: https://www.youtube.com/user/USERNAME/videos and https://www.youtube.com/channel/CHANNELNAME/videos more useful than https://www.youtube.com/user/USERNAME https:...
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1answer
39 views

Is it a good idea to get a sound card for gaming/listening to music/watching movies/etc? [closed]

The title is quite self-explanatory so I'll end with the fact that I don't have any special speakers that are of 'high quality'. But I do have a headset worth $50 that sounds really nice, so if I were ...
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1answer
52 views

How to merge live video and audio streams

I'm sending a live stream of bitmaps to ffmpeg through standardin like this: proc.StartInfo.Arguments = "-rtbufsize 1500M -f image2pipe -r 25 -i pipe:.bmp -vcodec libx264 -r 25 C:\\test.avi"; The ...
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1answer
42 views

FFMPEG - Combine multiple audio files and one video in to the multi language video

I've checked if there was a thread like this one, but seems like either there was none or i suck at searching. Anyways, to the the point. I wanted to create a video file with different audio tracks ...
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2answers
63 views

combining / piping / chaining multiline ffmpeg commands together

Greetings I can convert a video file to a high quality animated gif file by executing the following two lines of commands below one right after the other. ffmpeg -i test.mkv -vf palettegen palette....
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1answer
23 views

Playing video in browser glitches

Is there any way to fix this problem when I play videos in a browser. Doesn't matter if its Chrome or Mozilla. Same goes when playing gifs, tho they stabilized after a few loops. Video playbacks seem ...
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2answers
54 views

youtube-dl | OUTPUT parameters | remove just the appended “-id” tag

win10_HomePremium_x64 youtube-dl_16.05.10 Since i'm using Windows, i've set an alias to use youtube-dl.exe ALIAS regedit > HKEY_CURRENT_USER\SOFTWARE\Microsoft\Command Processor new string ...
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0answers
14 views

Windows 7: Playing DVD shows gray Noise

I've got a Windows 7 computer. When I want to watch a DVD movie, it starts playing, but nearly immediately the whole screen shows gray noise. When pressing ESC, the noise disappears for a moment and I ...
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2answers
67 views

Batch compress .avi files with ffmpeg which contain previous date in their name

im trying to manage CCTV footage, and im trying to batch compress them with ffmpeg So far i managed to come up with this command ffmpeg -i "0515 210004.mp4" -b 200000 output.avi But i need to do ...
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0answers
119 views

Chrome: videos don't full-screen properly (OSX and Win7)

So I am using Chrome (version 50.0.2661.102 as of writing this) and sometimes when I watch a video, it doesn't full-screen properly. It only takes up the space between Chrome's address bar and the ...
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1answer
45 views

Open video in WMP by clicking links in IE

How to carry the login information and/or IE browser cache to Windows Media Player? (I apologize that the screen captures are in Traditional Chinese, as I reside in Hong Kong...) For example, I have ...
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1answer
31 views

ffmpeg multiple files dimensions change

I saw a post on superUser on changing dimensions of a mp4 file which like this FFmpeg -I Input.mp4 -vf scale=460:690 output.mp4 but I want to change dimensions of multiple mp4 files in one go so I ...
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0answers
26 views

Modifying properties/metadata of .mkv files

I tried to modify the Tags property by right-clicking an .mkv file and then selecting Properties - Details, like I did for other filetypes (like .mp4), but I was not able to do the same in that case. ...
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0answers
21 views

Is there a way to filter and see all the videos i shared on my facebook profile?

I just want to see the videos i shared on my profile by filtering it. I thought it can be possible in activity log since you can search your posts but a lot of videos i shared in groups and pages ...
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1answer
68 views

Recovery of corrupt .mov file from dash cam

Yesterday on the way to work I was run into by a truck. I felt relaxed that I had my dash cam running only to find out last night when I tried to retrieve the commute file that it could not be opened. ...
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1answer
44 views

ffmpeg y4m to mp4 valid coding

I am trying to code y4m (raw) video to valid mp4 video. I was trying the following command, ffmpeg -i INPUT.y4m -c:v libx264 -preset ultrafast -qp 0 OUTPUT.mp4 It works fine but only play in chrome ...
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0answers
18 views

ffmpeg mjpeg to x264 buffer issue

I'm piping some MJPEG data into ffmpeg in order to turn it into an x264 stream. Here are my arguments: ffmpeg -use_wallclock_as_timestamps 1 -i pipe:0 -strict -2 -movflags empty_moov+...
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1answer
28 views

ffmpeg: .ogv to .mp4 - audio video not synchronized

I have a video in .ogv and want to convert it to .mp4 so I can upload it to youtube. I am trying ffmpeg for it: ffmpeg -i *.ogv -acodec libmp3lame -vcodec libx264 -crf 18 Windup-demo.mp4 After ...
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1answer
31 views

Concatenating multiple JPEG Sequences to one mp4 file

I have multiple JPEG Sequences /mydir/A/preview.%04d.jpg /mydir/B/preview.%04d.jpg and i want to output them as output.mp4 One single shot works fine like that: ffmpeg -i "/mydir/A/preview.%04d....
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1answer
24 views

.SV4 video file won't play in VLC

I have a program called JDVR that is recording feeds from analog security cameras (BNC connectors). The directory where the DVR files are stored has several .SV4 files of various sizes (from 12 KB to ...
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1answer
50 views

High-specced machine can't fluently play 4K UHD video

I have a machine that should in principle be able to play 4K/UHD uncompressed video. Here are some specs (tell me if you need more): Operating System Windows 7 Professional 64-bit SP1 CPU ...
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1answer
62 views

How to deal with excessive audio latency

My audio latency is excessive. The discrepancy between video (through HDMI) and sound is like 1000 ms. I'm using bluetooth that fires to wireless omni 10 speaker. The only way I know to reduce ...
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1answer
114 views

Why do my videos on my PC play in 'slow motion'

I have an odd occurrence with my PC. When I try to play video files, whether it be online through YouTube or Facebook, or on my hard drive in Windows Media Player, they play in slow motion. However, ...
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0answers
13 views

How do I permamently, and *accurately* synchronize audio

I have a Japanese film with Japanese audio in mkv format, and English audio for the film in mka format, however the English audio is roughly 3.5 seconds too fast. I can drag both audio tracks into ...
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0answers
53 views

Changing RemoteFX video RAM to 1024MB causes Hyper-V Windows 10 client to not boot

Whenever I change the video RAM to 1024MB on a Hyper-V with a Windows 10 client, it fails to boot. I just get this screen: It will just stay there, with the loading circle frozen. I have a GTX 960 ...
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0answers
27 views

File Explorer freezes when click on MKV files

I have several MKV files on network drive. Once I click any of them, File Explorer freezes for several minutes. In traffic monitor program I see, that computer transmits hundreds of megabytes of data. ...
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1answer
28 views

A video player that auto-plays videos in sequence while skipping certain parts

There is a TV show I like; I have its episodes stored as video files on my SSD. Each video file is about 24 minutes long, but only 20 minutes of that is the actual episode; the rest is intro, outro, ...
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1answer
29 views

Corrupted video drivers causing x to go insane

I think X is borked. It's been working for months, then suddenly: There's an extra, immobile mouse cursor stuck on the screen. CTRL + ALT + Fn doesn't work. The screen stops responding, but I can ...
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1answer
16 views

FFMPEG Crossfade videos changes video resolution

I am currently using the command from this question to crossfade two videos: crossfade between 2 videos using ffmpeg My command: ffmpeg -i firstVideo.mp4 -i secondVideo.mp4 -f lavfi -i color=black -...
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0answers
59 views

Video plays upside down only in VLC media player

I seem to have an issue that is exactly the opposite of that of many other users with upside down video's. The usual problem is that video players like Windows media player, quicktime or others play ...
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1answer
65 views

What are the factors that affects a video's quality?

I am new to this website and this is my first question, really appreciate if someone can provide some advice about my current problem. I've been testing some videos on my computer to see at what ...
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2answers
14 views

How to measure latency on wireless network, while 4 users are on Webex session?

Users are complaining that Webex session [4-5 users] on a wireless network has bad quality. How to measure packet loss and document what causes the bad reception? Thanks.
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1answer
61 views

ffmpeg slow motion video with audio

I am able to do slow motion video using following command (found this at How to use slow motion effect in a specific time interval with ffmpeg): ffmpeg -i input.mkv -filter_complex \ "[0:v]trim=0:10,...
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1answer
25 views

ffmpeg audio duration increase using atrim

I have video of duration 10 secs and with the help of following command i can trim and then concatenate it using following command: Video ffmpeg -y -i test_video.mp4 -filter_complex \ "[0:v]split=3[...
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1answer
32 views

ffmpeg filter_complex chaining video streams (watermark then trim and join)

I am trying to add watermark and then trim specific part and at last join these by following command: ffmpeg -y -i test_video.mp4 -filter_complex \ "[0:v]drawtext=fontfile=Lato-light.ttf:text='test':...
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1answer
356 views

ffmpeg: packaging H264@MPEGTS into Smooth Streaming

I have a (quite large) set of files that is all H264 in an MPEG TS container. Due to time constraints I need to repackage this content into smooth streaming without transcoding it (transcoding would ...
0
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1answer
61 views

Encode h264 with FFMPEG that works across all browsers and devices (windows/mac/iOs/Android)

I want to encode images with FFMPEG to a h264 video file that will work on Windows Browsers and Mac Browsers and iOS / Android devices to display in HTML5. Is there a way to do that using one encoded ...
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0answers
15 views

VNC connection without video

I'd like to use the VNC protocol to remotize keyboard and mouse only, that is just like a regular VNC session but without the video. Typical usage scenario could be controlling a PA video system, a ...
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0answers
7 views

Repair Gopro files

I read a couple of place that i am not the only person who this trouble occurs. 1 time on 5 my video are corrupted on my gopro. It's always appen if my gopro miss battery, so my video file as seen not ...
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0answers
14 views

TS videos joined with a wrong duration

I have downloaded from dailymotion a movie of 3 parts with internet download manager, I get the 3 parts as TS files. I wanted to integrate a subtitle '.str' file to the movie so I joined the 3 parts ...
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0answers
27 views

An issue of merging multiple MP4 video

I am Windows user. I have about 300 .mp4 video from my XIaomi YI action camera. A duration of each file is about 2-50 seconds. I need to merge them into 1-3 file(s). I have tried about 12 video ...
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1answer
72 views

ffmpeg pause video every 10 seconds for 3 seconds

Is there a way to use ffmpeg to halt a video for 3 seconds every 10 seconds? For example, I use a 30 seconds video, the video should stop at 0:00, 0:10, 0:20 and 0:30 for 3 seconds. The length of ...
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1answer
61 views

Making pair of two YUV videos (side by side) using FFmpeg

I am trying to make a pair of 2 videos (side by side) with a 10px white border seperator. I used the following FFmpeg command, ffmpeg -i left.yuv -i right.yuv -filter_complex "[0:v:0]pad=iw*2:ih:...
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1answer
79 views

VLC Desktop mode spanning multiple monitors

I have recently found out that VLC had a desktop mode and well i saw that some people was using this to have the ISS Livestream as their desktop background. VLC was started inside Desktop Mode and ...
3
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1answer
90 views

ffmpeg filter_complex multiple filters mute and text

I have 2 ffmpeg commands working fine alone ffmpeg -i test_video.mp4 -vcodec libx264 -filter_complex "drawtext=fontfile=test.ttf:text=awesome:fontcolor=white:fontsize=20:x=0:y=10+th" test_video_text....
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0answers
18 views

Imporove voice track in video files mp4 and mkv

Often the voices in a movie or serial will be drowned out by loud music or background noise, often this is deliberate on the part of the studio thinking it improves the drama or what ever. but for the ...
3
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1answer
839 views

FFMpeg concat demuxer unsafe file name

I'm using ffmpeg inside my .net application to merge(concatenate) some short videos with the same encoding and width and height dimensions. I've created a txt file as the documentation says and this ...
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1answer
26 views

Convert Humax recordings to mp4

I have some recordings on my Humax HDR Fox T2 that i'd like to convert to mp4 video so I can put them on the ipad. For each recording, i have four files, eg: 13K Hey Duggee_20160217_0741.hmt ...