All Questions
Tagged with video-streaming video-conversion
29
questions
0
votes
0
answers
19
views
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
0
votes
1
answer
560
views
ffmpeg - cut without reencoding and strange behaviour: application provided duration is out of range for mov/mp4 format
In Ubuntu 18.04 I quite often used the following command for trimming part of the video without re encoding (which means without any quality loss).
ffmpeg -ss 00:06:00 -i DSCF5984.MOV -t 00:07:00 -c ...
- 101
0
votes
1
answer
349
views
How to convert home movie DVDs to .mpeg files?
My wife brought me a box of DVDs with her home movies from her life before me. I would like to store the contents permanently on our Linux home server alongside 100,000 jpg files and some more recent ...
- 61
0
votes
0
answers
1k
views
Ffmpeg hardware acceleration unsupported formats betwen transpose and auto_scaler_0
I am trying to develop a transoding service which makes use of nvidia hardware acceleration capabilities ( The gpu used in this process is a Tesla T4); I want to generate a mpeg-dash playlist for my ...
- 51
0
votes
1
answer
55
views
How to autocaption a video?
I want to play videos and autocation them.
I have some training videos and I want to see speech to text like what we have in youtube.(to show text under the video)
I don’t want to upload files ...
- 3
0
votes
2
answers
418
views
Streaming with Canon XA10, Black Magic Intensity Shuttle, and StreamLabs OBS on Windows 10
I am attempting to Live Stream with my Canon XA10 using a BlackMagic Intensity Shuttle and StreamLabs OBS. I can't seem to get a picture in either the BM Desktop Video, BM Media Express, or OBS. I ...
- 81
1
vote
0
answers
716
views
FFmpeg HLS single file playback is broken when encryption enabled
HLS files generated with encryption enabled and the single segment (byte range) option result in videos that are unplayable. The same videos play without issue when encryption is not utilized.
Here ...
- 111
1
vote
1
answer
2k
views
ffmpeg to fix video playback speed without re-encoding?
What's the best way to fix incorrect timestamps on a network camera using ffmpeg?
Running the camera in h264 mode with a 1fps correctly produces duration=1.000:
ffmpeg -hide_banner -rtsp_transport ...
- 23
0
votes
1
answer
584
views
How can I create a stream of my screen on a Windows computer for another device on my network?
I want to view what is seen on my Windows laptop screen on my tv, which is connected to a device running enigma 2, "screen mirroring". There are no software or plugins that will work on the device for ...
- 11
1
vote
1
answer
1k
views
ffmpeg - waveform.png: Invalid argument
I'm trying to use ffmpeg on Synology NAS with DSM 6.2 to create waveform of my mp4 files.
ffmpeg -i aaa.mp4 -lavfi showwavespic=split_channels=1:s=1024x800 waveform.png
[NULL @ 0x24271e0] Unable to ...
- 11
3
votes
1
answer
2k
views
How to efficiently create a best-palette gif from a video portion straight from the web
I've been using for some time this couple of commands to convert a video segment to an animated gif, having ffmpeg calculate the best palette for it:
ffmpeg -ss $START -i $IN_FILE -t $LENGTH -vf "fps=...
- 1,599
4
votes
1
answer
3k
views
How to split video files upon detected change in resolution? (ie. recorded streams containing multiple widths)
I have many video files (flv/mp4) that change resolution mid-stream (720p/1080p/640).
I would like to use something like ffmpeg to automatically detect the change in resolution and split the videos ...
- 81
61
votes
1
answer
138k
views
Downloading m3u8 videos [closed]
I am trying to download video from a .m3u8 livestream video format.
How can I download m3u8 videos using software on my personal computer such as ffmpeg, youtube-dl, VLC, etc?
M3U is a computer file ...
- 741
0
votes
1
answer
5k
views
Create video from a growing image sequence using FFMPEG
I am planning to render a personal 3d project as an image sequence, where each frame takes about a minute to be created and saved as an image file.
If I were to use the regular ffmpeg syntax to ...
- 41
0
votes
1
answer
3k
views
why ffmpeg trimming videos while converting to m3u8?
I am using ffmpeg version 3.2.2, and converting mp4 and mov files to m3u8 format by below command.
ffmpeg -i test.mov output.m3u8
The length of test.mov is around 3 min, but it convert it to last 24-...
- 103
1
vote
0
answers
1k
views
Unable to convert .ts file with the mime type video/MP2T to .mp4
I want to play a bunch of .ts files. Most websites mention that users can usually play these files directly in vlc but I couldn't. There was no error. It is just that the file would not open at all. ...
- 111
0
votes
1
answer
1k
views
ffmpeg extract audio from streaming mp4
I am trying to extract audio from streaming mp4,it succeeds on
ffmpeg -i http://www.sample-videos.com/video/mp4/720/big_buck_bunny_720p_1mb.mp4 out2.mp3
But it fails on this facebook mp4 streaming ...
1
vote
1
answer
1k
views
Decoding x265 HEVC more efficiently
I have an old Extreme i7 first generation with 12 threads running a PLEX server. LAtely I've started adding more files compiled using x265 over x264. I noticed that when the system runs a x265 file, ...
- 4,076
0
votes
1
answer
61
views
How do I cut clips using its position from a video?
I have a lot of clip positions that I have to extract from a single video, how can I automate the whole process? As of now I have to manually cut each clip using its position, but as my number of ...
1
vote
0
answers
1k
views
ffmpeg with a streaming input change channels order and indices on different execution
We're using ffmpeg to take a mpts stream by 3rd party and encode it to a webm file.
Now Every time I've call the ffmpeg command I get different map of channels for it.
For example:
Input #0, mpegts, ...
- 121
3
votes
1
answer
6k
views
How to create video from images and audio file?
To make the story short, I just want to create a video from a X number of images and a mp3 file, AND get the same audio quality.
I've checked the ffmpeg website, but ... here is what I've got:
...
- 131
1
vote
1
answer
209
views
Avconv generating HUGE metadata over 90mb for 718mb video file
This is the metadata file, extracted with Atom box studio:
https://www.dropbox.com/s/tok76wospngf854/moov
Video was converted with avconv, info:
/usr/local/bin/avconv -version
avconv version 9.4, ...
- 113
3
votes
0
answers
4k
views
Fixing ffmpeg latency accrued over time
I have ffmpeg/ffserver running in the following setup:
10.1.2.2 captures from video capture cards (16 channels) and streams them to an ffserver as mpeg1video
10.1.1.1/10.1.2.1 (two NICs) hosts the ...
- 314
1
vote
0
answers
4k
views
How can I increase volume for HD mp4 files with ffmpeg?
I am converting videos using FFmpeg on Linux.
Videos are 1080p at first and I convert 1080p to h264 720p and 360p. Also if videos are 360p I`m converting them to h264 360p.
The problem is when ...
- 96
3
votes
3
answers
2k
views
Stream video from a computer to a tablet
I would like to watch presentations and college videos I have on my computer, from my tablet. There are almost a hundred of GB in videos, so I would like to watch them in streaming from my computer. ...
- 293
1
vote
1
answer
539
views
How can I record my screen, with sound, and encode it live?
I need to record about two hours of streaming video. Is there a way to encode the video directly ?
I've used fraps, but the files created are just enormous.
- 3,031
1
vote
2
answers
4k
views
Is there a cheap option for restreaming from an MJPEG IP camera in Flash format?
We're working with Axis brand cameras and media encoders (1 camera, 1 encoder) that are outputting MJPEG format video to our web server. We then need to show these streams on a website. Clients will ...
- 121
0
votes
1
answer
1k
views
Batch Edit Keyframe Metadata FLV Recorded Stream Video
I recorded an FLV stream, but the resulting video has an awkward metadata quirk that prevents successful conversion to other formats. Here is a snapshot of the keyframes at the beginning of the FLV as ...
- 289
1
vote
1
answer
2k
views
Properties!Details (run-time length)
When you take clips and turn them into computer playable files, whether .TS or .MOV or .MPG, .MP4, .VOB, etc., do you as the producer actually manually write into some field in a "Details" section of ...
- 367