Questions tagged [video]
Questions about video editing, streaming, conversion, capturing or video output. Use a more specific tag if possible.
6,229
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Why do I lose all video when I add a GPU to my PC?
When I add a Quadro p1000 to my Lenovo p330 I lose all video. Neither the card or integrated video output anything.
If I remove the GPU the integrated video behaves as expected.
With the GPU removed ...
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2
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180
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ffmpeg scale2ref with overlay complex filters returning audio only mp4 output
I am trying to find out why the result of using scale2ref with overlay complex filters is returning audio-only mp4 output.
ffmpeg -i input.mp4 -i watermark.png -filter_complex "[1][0]scale2ref=w=...
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51
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Play analogue video from audio in
I have an adapter with AV input on one end and a 3.5 mm jack on the other.
Is it possible to plug the 3.5 mm jack into audio in and view the AV signal going in?
I've been trying to use the Analogue ...
- 11
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75
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VLC: Split Video onto Two Displays with Command
I need to display a video on two screens with VLC by command, in a non-manual way on my Raspberry PI.
The two screens are each connected by a HDMI cable. The video files have the 3840 * 1080 ...
- 101
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29
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YUV: Change the Chroma Subsampling and Bit Depth Without Losing Quality
Let's say I have a short video with YUV 4:4:4 and 10bit depth, and I convert it to a FFV1 with YUV 4:2:0 and 8bit depth. Is the FFV1 lossless? Will the colors be the same?
If so, how do I convert ...
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45
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How to merge videos without overlap maintaining ratio 16:9 using ffmpeg
I have 2 videos in format 16:9. I need to merge together without any overlap and I need to keep final ratio 16:9 as well. One video need to be large (covering 80 % or more) and other has to be smaller ...
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2
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69
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VAAPI decoding on UBUNTU does not display video
I am trying to decode and display a video using gstreamer vaapi streamed over ethernet network. I don't have any errors just the video is not displayed.
The pipeline used on sender is:
gst-launch-1.0 ...
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1
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29
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Seeking with ss dont seem to work in combination with VideoFilter
In FFMPEG I am using the following command to extract frames from a video:
ffmpeg -ss "00:47:13" -i "Video.webm" -vf select="gte(n, 90000)" -vframes 5000 "frames_%d....
- 113
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173
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How to correct Dolby Vision HDR video on Windows 10 (it is correct after sharing on Facebook)
I have a video that is recorded from an iPhone in Dolby Vision HDR. When playing it using the Windows Films & TV app, the colours look washed out (I assume it is because Windows does not have ...
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38
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How to add texts at specified timestamps (FFmpeg)
I have a video (input.mp4) file showing a series of cashier transactions. I would like to add a counter showing cumulative number of purchases.
I was able to add a running counter doing this:
ffmpeg -...
- 11
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103
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How to preserve contrast/highlights when converting ProRes HDR 10-bit to SDR using hevc_videotoolbox?
I'm trying to convert a 4K HDR 10-bit video clip to BT.709, preserving as much color as possible while allowing the clip to be played where HDR is not supported.
With the command below, the output is ...
- 21
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1
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48
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GoPro Dashboard Overlay - Total Distance
Is there an easy way to get James Richardson's GoPro Dashboard Overlay tool to display total distance or average speed? I'm not figuring it out. The default render shown in the docs doesn't seem to ...
- 285
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88
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FFMPeg: Rotate Image on centre of image
Im trying to overlay an image on at a position X,Y of video and then rotate it an arbitrary angle where x,y = 150,100
This however does not work as expected.
Below is the command I'm using.
ffmpeg -i ...
- 115
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17
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How to create a video encoding ladder for any aspect ratio?
For a given video uploaded by a user, I need to create three versions of it to cover standard definition (SD), high definition (HD), full high definition (FHD), and ultra high definition (UHD e.g. 4K)....
- 111
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92
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How do I write unique images to each video frames?
There are unique images for each frame of a video and I am trying to use ffmpeg to overlay the images back to source video to generate same source video metadata with overlayed image.
ffmpeg -i input....
- 101
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163
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Ffmpeg out of memory issues with filter_complex_script
I’m trying to do a "moving crop" on a video with ffmpeg, following this question: https://stackoverflow.com/questions/78314831/ffmpeg-dynamic-cropping-using-sendcmd-correct-syntax
I’m ...
- 137
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39
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Achieving Precise 10-Minute Shutdowns for VLC Player
I need VLC player to shut down every 10 minutes, so I used this command: vlc -I {camAddress} --run-time=600 vlc://quit. However, it's not shutting down exactly after 10 minutes. I suspect this is ...
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54
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Change default/native resolution of a display in macOS
I have a Philips 55PUS7303/12 TV (albeit it's hooked up to my computer through a Denon AVR-X1400H AV receiver, but this doesn't change the aspect I'm asking about) and it shows up as having a default ...
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47
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How to stream integrated camera to Facebook using FFMpeg
I'm currently using this command to stream to Facebook:
ffmpeg -f dshow -i video="HD User Facing":audio="Varios micrófonos (Realtek(R) Audio)" -c:v h264 -pix_fmt yuv420p -r 30 -g ...
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153
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ffmpeg fetching PTS/DTS for data packets incorrectly
I have captured a transport stream through TSP command
Command: tsp -I ip port --source ip -O file stream_capture1.ts
then using ffprobe, below is the output which is capturing correct stream
Input #0,...
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47
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Why does FFmpeg encoding stall on Ubuntu with DVD video file?
I've encountered a challenging issue while using FFmpeg on Ubuntu to encode a DVD video file contained in a .bin format. Despite various attempts (also employing vlc or bounting converted .iso), ...
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85
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Disabling playback windows 10 notification from top left corner?
I have checked the "similar" question I don't believe the answers there deal with this problem specifically they are mainly talking about the right side notification center, this is not ...
- 29
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89
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FFMPEG > The transcoded video contains insufficient number of frames
I am trying to transcode the videos (which I receive via the javascript media recorder in streaming mode by telephone) to use the VP9 codec
and also to resolve concerns about the duration of these ...
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1
answer
58
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How can I detect which channels contain compressed audio in a video file by using command line tools?
I have an MXF file that contains 16 audio tracks. I know the first two tracks (stereo) contain Dolby E compressed video. Using MediaInfo (gui) it lists 16 audio streams with a mix of Dolby E and PCM ...
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294
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How to remove all subtitle channels except the first English one with FFmpeg?
I'm not very well versed on FFmpeg, and I've tried to do this many times myself, but I couldn't even figure out the syntax.. So I'm going to ask outwards to people much smarter than myself. I wish to ...
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1
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240
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Why am I getting pixelated videos in FFmpeg when converting to a GIF?
I want to encode this WEBM video:
https://buggem.github.io/connecting.webm
I have been noticing the fact that FFmpeg has been played up when it comes to quality.
I am doing WEBM to GIF, if that ...
- 123
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84
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Bluetooth earbuds not playing any sound after a while while video calling on my macbook
I am using a 2017 MacBook air. I can watch videos with the same earbuds without any issue at all for however long. But, when video calling or attending meetings in WhatsApp and MS Teams (haven't tried ...
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30
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OpenWRT - RTSP doesn’t work on 802.11b (no video stream, but audio works)
I have an issue with configuring OpenWRT on MT7628 chip from Mediatek.
OpenWRT version: 19.07.3
Expected behavior:
OpenWRT creates a local Wi-Fi network (no connection to the global internet). Two ...
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1
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102
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FFmpeg trimming of Linux Screencast video does not work as described in another answer
I used the answer(s) from this questions, however my video is not trimmed.
Using ffmpeg to cut up video
How to reproduce reproduce:
The Video I am talking about was recorded via the Ubuntu 22.04 ...
- 129
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1
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563
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Error submitting a packet to the muxer: Cannot allocate memory
I'm attempting to trim and concatenate several video files using ffmpeg. These videos have already been transcoded with H.264 at a resolution of 720p. However, when executing the command, I encounter ...
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3
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92
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Why is Handbrake forcing down the frame size of my video?
Summary: I have an old movie that I downloaded from YouTube some years ago, saved as an flv. I want to extract a 13-minute clip from it. To do that, I used ffmpeg to convert it to mp4 so I could load ...
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89
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MPV to play videos with a geometry
I have YOCTO build and I have integrated the mpv to the image. I need to test something so, I wrote a script that could play videos with a certain width and height and position on the screen but mpv ...
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1
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156
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Lossy audio/video/image formats and data loss
I once heard that if you store music/videos/images in lossy formats, the quality gradually degrades over time.
The difference in perception is not the only reason to store music in FLAC. FLAC uses ...
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5
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How to record an old Foscam system’s live feed locally?
I just inherited an old Foscam wireless / wired, pan/tilt IP camera model FI8918W. Due to its age, Foscam no longer supports. Rather than tossing it, I was able to stream video to my browser using ...
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150
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Random Mouse Lag Triggered by Video/Animation
I'm facing an intermittent issue that seems to occur during video or animation playback in browsers. Since I rarely use any software other than web browsers, I can't confirm if the problem extends ...
- 131
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49
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How can multiple, non-regular segments be extracted from a video using ffmpeg on Windows?
I'm trying to extract some segments from a video (and optionally combine them) using ffmpeg... but I'm not getting very far.
Compared to the various examples I've found here, in the ffmpeg docs and ...
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1
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37
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How to use ffmpeg speedup video specific time range in one line ffmpeg cli
I try following splited cli, they work well
ffmpeg -i "$input_file" -filter_complex "[0:v]trim=start=0:end=10,setpts=PTS/10[v1];[0:a]atrim=start=0:end=10,asetpts=PTS/10[a1]" -map &...
- 101
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How can I trick Windows into thinking I have a second monitor? [duplicate]
I used to use two monitors on Windows 11.
When I did a webinar or something, I could use "Presenter View" with PowerPoint. This is where it shows the actual full-screen slide on Monitor A ...
- 481
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750
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How can I transcode a Dolby Vision video?
I would like to use FFmpeg to take a Dolby Vision video, and output Dolby Vision at the end. I can see that x265 has some flags to pass, so I have made some attempts using that. An example is:
ffmpeg -...
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126
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How can I know how much video compression to expect? [closed]
I'm struggling to learn about video compression. I've learned about H.265 and bit rates. I've downloaded HandBrake and tried it out on a test file. So far, in the two tests I ran, the output files are ...
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1
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520
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Does this video bitrate calculation make sense?
For the purpose of this question, I downloaded the video at:
https://imgur.com/gallery/ypkZjqm
It downloaded as "3Uyndrm.mp4", 4,762 kB
In Windows 11, I used File Explorer > Details to ...
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56
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Yet another ffmpeg concat audio sync issue [closed]
I've read through dozens of posts, tried many suggestions, nothing seems to work for me. The funny part is that the video is fine in some players (e.g. Quicktime) but not the others (e.g. Chrome).
...
- 261
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89
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Streaming Dynamically Created .ts Files to RTMP Without Concatenation Corruption using ffmpeg
I'm working on a project where .ts video files are generated in real-time, and I need to stream these to an RTMP server without pre-concatenating them. Initially, I attempted using a named pipe and ...
- 101
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17
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How to add my own Custom Resolution in Adaptive bitrate in Ant Media
When I check the Adaptive bit-rate settings I see that there are predefined resolution in Ant Media which is good, but I want to add one more Custom resolution in the settings , but I do not see any ...
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81
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Pausing the video for 15 seconds
I have a video which is 40 seconds long, I want to make it 55 seconds long, I wanted that the video's first frame along with it's audio freezes (frame freezes) for the first 15 seconds and after the ...
- 21
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93
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Capturing raw video stream from second pc (HDMI Splitter & Capture Card)
I would like to create a test setup in which I transmit the raw stream from one PC via an HDMI splitter and display it on a second PC where I receive the HDMI signal with a capture card..
Due to the ...
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1
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127
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FFMPEG - Add a green video overlay at a fixed Interval in a video. How to define the interval?
I am trying to add a green screen video overlay on the top of my main video. The green video overlay is like a thumbs up that shows up every few minutes in the video. I have a ffmpeg command that adds ...
- 1,708
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1
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329
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Can someone tell me how to remove or completely disable the playlist function altogether in Pot Player?
I only want to play one single video that I have selected to play from my listing in Download or other file location. I don't want to be presented with a list of other videos that I have watched in ...
0
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0
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83
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How to draw a moving line as slider for the image comparison video generator script in Python with FFmpeg
I have the below script to generate a video slider with FFmpeg
You can see example here (first 10 seconds) : https://youtu.be/F_wf1uHqZRA
I am trying to replicate effect of imgsli like a person is ...
- 783
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1
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129
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FFMPEG - Adjust DrawText Based on the Length of the Video
I am creating a video with a DrawText, that vertically scrolls from down to up. The text.txt file contains several lines of text. Is it possible to adjust the scrolling of the text based on the length ...
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