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Questions tagged [video]

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

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How Handbrake calculates width in “1080p30” preset

I have a video: Resolution: 1920*1080 PAR: 65536/65536 Rotation: 90° In Fast 1080p30 preset, The default value for Anamorphic option is Automatic and Modules 2. What I'm curious about is the ...
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0answers
3 views

Can't open multicasts with ffmpeg

I want to capture some multicasts with ffmpeg, or analyze with ffbrobe. I type for exemple: ffprobe udp://239.193.1.6:5501 -v 9 -loglevel 99 But I din't receive anything..... [root@xxxxxx]# ...
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0answers
34 views

How does site with large video content store their data? [on hold]

How does big video sites host lots of video files ? i mean i can get 32 TB server but what if data gets bigger than 32 TB ? do they add more servers ? but while serving their content they serve from ...
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0answers
18 views

ffmpeg how to extract X frames every Y interval from url efficiently

I'm trying to gather data for a datascience project, and am downloading frames from online videos using ffmpeg. I want to download a subset of the frames in the video, without needing to be precise ...
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0answers
26 views

How to find duplicate video files basing on length/duration? [on hold]

I am looking for a way to find duplicate videos based on duration (e.g number of seconds) and not based on size/MD5/thumbnails/etc. This is a very simple concept but I find it impossible to find a ...
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0answers
25 views

FFmpeg RTSP to HLS Conversion is causing random freezes and errors

So, I have a command that converts RTSP to HLS for me: sudo ffmpeg -fflags nobuffer -rtsp_transport udp -i rtsp://admin:'password'@10.2.10.201/video1 -vsync 0 -copyts -vcodec copy -movflags ...
1
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1answer
17 views

HEVC 10 bit streaming to full HD TV

I have a low power desktop (ASRock Mod 1150 H97M with integrated graphics, Intel Pentium G3258 CPU, 1920*1200 monitor, Windows 10) which acts as a media server in my home. My TV is Sony/Android TV/ 55 ...
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0answers
18 views

Need to add the same voice tag at specific offsets on a batch of videos

I have a batch of videos, all in MP4 with different lengths. I would like to insert a specific audio file exactly at the 30 second mark on ALL of the videos. For example. if the video file were 1 min ...
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0answers
32 views

FFMPEG Glyps not found - Linux VS Windows

I'm currently converting some MKV files and hardcoding the subtitles using ffmpeg. ffmpeg -i inputfile.mkv ... -filter_complex "subtitles='inputfile.mkv'" ... outputfile.mp4 For the first time I ...
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393 views

How do I zoom in and save a video using VLC media player?

So I have a video, I click "Video" -> "Zoom" -> "Double", then try to convert it using the video magnify/zoom filter, but it just ends up zoomed in at the top corner, i.e not where it was when ...
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0answers
27 views

Streaming to Mixer.com with ffmpeg

I've been pulling my hair out trying to figure this out. I'm trying to broadcast a stream programmatically using ffmpeg, but the results are bizarre. I'm using fluent-ffmpeg for the following: const ...
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1answer
16 views

ffprobe count video and audio channels

So I have the following video example Stream #0:0(jpn): Video: h264 (High 10), yuv420p10le(progressive), 1920x1036 [SAR 1:1 DAR 480:259], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default) ...
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0answers
13 views

How to remove frames from video using ffmpeg? [duplicate]

I'm using a program called comskip on my recordings, for those who don't know it, it detects the start and end frames in the video file of each commercial break. I've read the ffmpeg man page and ...
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0answers
16 views

Is it better to ask FFMPEG questions in this section or on Stackexchange video? [migrated]

I've noticed only after I already made a post on the new videoproduction/ video.stackexchange site that the official site of FFmpeg's contact page actually points to HERE (Superuser site, with tags of ...
1
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1answer
19 views

Use ffmpeg to trim off X seconds of a y4m video

I'm trying to trim the first second off some .y4m videos. Using the answer provided here, I am able to trim the first second off a .mp4 video and then play back the output video: ffmpeg -ss 1 -i ...
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1answer
39 views

FFMPEG h.264 stream to VLC from raw YUV444 produces black screen and audio noise

I am piping raw YUV444 640x480 frames to ffmpeg from inside a C++ program using stdout (Pipe format: pipe<-Y<-U<-V whole frames each). ffmpeg encodes them using h.264 and streams the video ...
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2answers
63 views

Create tape distortion effects with FFmpeg

I've been attempting to create video that looks like it's been distorted by a tape player. A specific example of the effect I'm after is the tape distortion effects in this video, but general tape ...
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2answers
100 views

No video from newly installed Radeon HD7790 graphics card on a Windows 10 PC

I have a 5 year old home theater PC (Windows 10) with a Radeon HD7790 GPU. Today I upgraded the PSU and the GPU to an AMD RX 570. I can get onboard video, but not video from the new card. I've tried ...
2
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1answer
43 views

Audio Lost in FFMpeg Picture in Picture Conversion

I am creating a "Picture in a Picture" audio/video file using three audio/video files. The conversion completed, but has no audio when I play the completed video file. I do these types of conversions ...
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0answers
32 views

ffmpeg slides to video with padding shows only one image

I usually create video clips of still images using something very similar to This StackOverflow example. However, this time, I have a set of images of varying sizes, so clipped in options from This ...
0
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1answer
62 views

FFmpeg Not Transcoding In Real Time

Been setting up a recording build for a friend to resemble mine, but I can't seem to get things to work in real-time despite sufficient (as far as I can tell) hardware. System specs: 8600K, GTX ...
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0answers
18 views

Ffmpeg broken first segment

I have big problem with saving h264 stream to mp4 with ffmpeg. I'm using different options without any results. When I'm stopping ffmpeg during create of first segment, the output .mp4 files won't ...
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0answers
22 views

convert mp4 file to y4m keeping audio stream

I'm trying to convert an mp4 file into y4m to use with Chrome as a webrtc fake device. (using --use-file-for-fake-video-capture=path/to/file.y4m as described in https://webrtc.org/testing/) I'm using ...
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0answers
50 views

Mix audio and video and keep audio from video too using ffmpeg

I am trying to merge a video and an audio using ffmpeg. What I want is to keep mix audio from both files i.e. from video as well as from audio file. I am currently trying with the below command. -i, /...
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0answers
18 views

Automatic removal of black bars in VLC on Linux

I have an 21:9 ultra-wide monitor I want to watch my movies on. Unfortunately, in most movies are formatted as a 16:9 image with hard-coded black bars on top and bottom. I know VLC has the feature to ...
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0answers
45 views

I can't set a program as the default to open a Video File with in Windows 10

I am trying to set bomi as the default video player. In the past I was using it as my default player without any problems. But, for some reason I uninstalled the application, and then installed it ...
0
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1answer
61 views

FFMPEG merge two videos which don't have any audio

I created two different videos which are created by combining multiple images into videos. Below is the command for that. "-f","concat","-safe", "0","-i",path,"-vsync","vfr","-pix_fmt","yuv420p",...
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1answer
31 views

What's the difference in FFMPEG between using -c:v libx264, -c:v copy and -vcodec copy?

I'm trying to record video and audio from an IP Camera streaming in H.264. I found these different options: -i "camera_url" -c:v libx264 -acodec copy "out.mp4" -i "camera_url" -c:v copy -acodec ...
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0answers
25 views

ffmpeg stream multiple sources to youtube, source change on the fly

I try to stream multiple sources (images, movie files and webcams) to youtube's rtmp-protocol using ffmpeg. What I thought was to make a playlist m3u8 via the commandline: ffmpeg -i source1.mp4 -c:...
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1answer
67 views

What are the pros of getting a curved desktop monitor - for real?

I'm about to purchase a new desktop monitor. My current one is a 23-inch, 16:9 aspect ratio flat monitor, but I am thinking of increasing the size. My intended use is mostly desktop work - authoring ...
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0answers
25 views

[FFmpeg]Randomly adding beep sound to video

I need to add beep sounds at the arbitrary position to the videos. My purpose is to make the video soundtrack unusable, but can still know its contents and the audio quality. My first thought is ...
0
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1answer
57 views

How to split video output signal from 1 PC to 40 projectors [closed]

I am thinking of implementing this by daisy-chaining multiple splitters but I am not sure if it will work. Does anyone know of a cost-effective solution to this? Thanks.
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0answers
39 views

How to play openload, vshare links in Windows 7?

I watch streaming videos online, most of the sites upload their videos on "openload" & vshare.io". Here is the sample vhsare.io link: https://vshare.io/d/e0nf8j4. But this video link is showing ...
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0answers
11 views

How to set ffdshow properly for VisualSubSync Audio-Decoding AAC LC

Hey Guys when I tried to extract the .wav File I get following error Code in VSS(VisualSubSync) Opening and analyzing file : F:\Exzessiv\18.10.23_TelAviv\output\EmmiMesse_v2.mp4 In case of problems ...
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1answer
42 views

How to deinterlace GRAY video and convert it to .avi?

I have binary data stream from analogue camera that contains even and odd frames. Right now I convert it to .avi with this, ffmpeg -f rawvideo -pix_fmt gray -s:v 700x220 -i data.bin -c:v rawvideo -...
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0answers
11 views

Dell PE2950 Video card almost working in KXStudio Linux

On my Dell PE 2950 I cut out the back of the PCIe x8 slot and installed a PNY NVidia GT 710 (low profile to fit in the case. Installed NVidia drivers for Linux...BEFORE I cut the x8 slot. I tried ...
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0answers
8 views

avcodec library not extracting all the frames from a video [migrated]

I have written a library that could be used with python to extract frames from a video in a buffer for some processing. I used the examples from the ffmpeg to build my library using libavcodec. This ...
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0answers
20 views

FFMPEG Crop black line down edge

I'm using FFMPEG to merge an equirectangular image with an equirectangular video. The image is scaled to fit the video, and then I need to adjust the rotation of the image by 90 degrees so I cut 25% ...
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1answer
21 views

What are available software to cut multiple clips out of a single video? [closed]

I'm looking for a software application to cut videos into multiple clips, typically by giving it the start and end time of the clip. Sometimes I need to cut about twenty clips from a single video, it ...
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0answers
18 views

How to remove ffmpeg warning “deprecated pixel format used” [duplicate]

I've been trying for a few days to design a command line that will allow me to convert all video files '.ts' of a directory into '.mp4' files of good quality on which I will have made settings, ...
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0answers
19 views

VLC playback dropping frames repeatedly

When I play back high bitrate 1080p movies (13GB for 2h 23m to give an idea of bitrate) the video runs mostly smoothly but will hit patches where many frames are dropped, about every 1-2 minutes. It ...
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0answers
29 views

How to preview video/animated gif in Okular?

Preview video/animated gif in Okular? I make presentations using latex/beamer and preview them in okular 1.3.3 (under ubuntu 18.04). Is there any way to preview avi/mp4/animated gif or animation in ...
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1answer
48 views

ffmpeg - Record Audio Volume Equal to the Video Being Played

I am using the following command to record video on my desktop with the audio on the sound card. But, the volume of the audio recording is much lower than it should be. How can I get the audio to ...
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0answers
37 views

Is this a faulty video card?

I've recently bought a Thinkpad P1 with Xeon processor with an nVidia Quadro P2000 (with Max-Q Design, whatever that is) and I've been noticing some video artifacts. Recently, when a particular ...
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1answer
26 views

ffmpeg matches no streams

I'm trying to make complex filters with fluent ffmpeg work, but getting the error: Stream specifier 'pts' in filtergraph description [0:v]setpts=0.3333333333333333*PTS[pts];[pts]crop=out_w=3381....
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0answers
35 views

Does chrome load videos in a different way than firefox?

When trying to load videos onto a Three.js texture, I noticed that the Chrome is loading a video in ~2Mb chunks and playing the video once the chunk loads. I am comparing this with firefox where a ...
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0answers
39 views

Live streaming and FFMPEG

Introduction and problem description Hello everyone, I have a server that generates a series of bitmaps of the same resolution and at a fixed rate. I have to make a webserver which converts them into ...
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0answers
46 views

Two questions about using FFmpeg on Debian

There are a couple of questions about using FFmpeg. I use Debian stable branch. I make separate caps from a video file. A very long time. I would like to understand how this can be optimized? What ...
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0answers
11 views

re orientate video in equirectangular format with ffmpeg

Is there anyway to re-orientate an equirectangular via ffmpeg or similar? i.e. so the centre of the video moved to the edge or something? I did come up with a hacky solution of cropping the 2 ...
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0answers
50 views

Seeking in M3U8 file results in 20 seconds delay or more

I have a list of ts files. For each ts file I have an m3u8 file. But for some ts files I don't have m3u8 files. My m3u8 file is in the below format(showing the already existed file). This file ...