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VIDEO QUESTIONS

What happens if I ffmpeg encode two times successively with the same bitrate
What happens if I ffmpeg encode two times successively with the same bitrate
Any of those help The quality will not remain the same Re-encoding with a lossy encoder will reduce the quality each time. This is called generation loss.
TAG : video
Date : January 02 2021, 06:48 AM , By : kalfa
Why does only youtube embeds work on iPad?
Why does only youtube embeds work on iPad?
Hope this helps Youtube links are handled specially in the iPhoneOS. This is because there is a /System/Library/Internet Plug-Ins/YouTubePlugIn.webplugin to handle these.
TAG : video
Date : January 02 2021, 06:48 AM , By : Nick Coats
echo problem in audio/video chat application
echo problem in audio/video chat application
fixed the issue. Will look into that further Acoustic Echo Cancellation (AEC) is a particularly tricky problem in telephony, audio/video-conferencing, etc. Even if you're using a headset at your end you can still get echo via the remote end. You need
TAG : video
Date : January 02 2021, 06:48 AM , By : apple
h264 RTP timestamp
h264 RTP timestamp
should help you out It doesn't matter if your encoder encodes video at 10FPS or 30FPS, with RTP timestamp you tell the receiver how long is the pause between the two frames. So you determine that on the fly for each frame. That way you can send 10 fr
TAG : video
Date : January 02 2021, 06:48 AM , By : hlpimfalling
FFMPEG fails to trim beginning of clip
FFMPEG fails to trim beginning of clip
like below fixes the issue This looks to be a bug with input -to. For now, use -ss and -to as output options.
TAG : video
Date : December 26 2020, 12:30 AM , By : user96271
Why can't download video title when to set proxy argument with youtube-dl?
Why can't download video title when to set proxy argument with youtube-dl?
Hope this helps An update to youtube-dl was recently made to address similar issues; try the new version:
TAG : video
Date : December 25 2020, 08:30 PM , By : Mike
ffmpeg motion interpolation for 2x and 4x slowmotion
ffmpeg motion interpolation for 2x and 4x slowmotion
Does that help You are currently generating a 120fps video at normal speed. To do a slow-mo you need to slow it down by 4x ffmpeg -i input.avi -filter "minterpolate='fps=120',setpts=4*PTS" output.avishould do the trick.
TAG : video
Date : November 25 2020, 07:27 PM , By : user185144
Video and file list displaying unwanted attributes in Bolt cms
Video and file list displaying unwanted attributes in Bolt cms
may help you . In the record.twig template of the default theme the fields revert to a dump of all attributes when there is an unknown field.You will have to change the template yourself to make them return usable html.
TAG : video
Date : November 23 2020, 09:01 AM , By : vferman
Displaying a video file on a website
Displaying a video file on a website
Any of those help you have few options. Restrict user to upload only known/popular video format. Such as mp4,avi,3gp
TAG : video
Date : November 22 2020, 10:38 AM , By : mdiezb
FFmpeg Concat artefact between bribes
FFmpeg Concat artefact between bribes
Hope that helps I finaly found what was going on !The problem was at the encoding of the original video chunks.
TAG : video
Date : November 19 2020, 12:35 AM , By : Vasiliy
When accessing a video via the direct file path, what causes it to play in the browser vs open the download dialogue win
When accessing a video via the direct file path, what causes it to play in the browser vs open the download dialogue win
I wish this helpful for you Browser will try to play it if you explicitly tell it that the file downloaded is a video file. As @TLJ said you have to pass the
TAG : video
Date : November 07 2020, 01:32 PM , By : janik
How a P-Frame is constructed in H.264 codec when processing a raw video
How a P-Frame is constructed in H.264 codec when processing a raw video
wish helps you Considering your last comment about B-frames. The video encoder has a buffer which keeps a certain amount of frames.Let's consider an example where your first 4 frames are to be encoded with following structure: IBBP.
TAG : video
Date : November 02 2020, 09:01 AM , By : ravibits
Max MP4 H264 Header Size
Max MP4 H264 Header Size
it helps some times According to MP4 File Format Specification, there is virtually no Header Size limit. Some movie atoms are in variable size, so you can't set a limit.
TAG : video
Date : October 31 2020, 05:38 PM , By : cjdavis
multiple crop operations on input video using ffmpeg
multiple crop operations on input video using ffmpeg
hop of those help? Use a single input, crop then map to multiple outputs. Example for two tiles:
TAG : video
Date : October 29 2020, 04:55 AM , By : goffi
Video effects/manipulation library?
Video effects/manipulation library?
I think the issue was by ths following , There are a couple of CLI tools that come to mind. FFmpeg: arguablely the most popular tool for such things, although it might not be exactly what you need: MEncoder: it does some interesting things VLC: Anoth
TAG : video
Date : October 23 2020, 03:00 PM , By : Pieter Taelman
Generate single MPEG-Dash segment with ffmpeg
Generate single MPEG-Dash segment with ffmpeg
To fix the issue you can do It sounds like what you are describing is live streaming rather than VOD - live streams are continuous, usually real time video streams and VOD is typically a video file which is served when the user requests it.The usual
TAG : video
Date : October 09 2020, 08:00 AM , By : Lars
Matroska H264 Codec Private Data content
Matroska H264 Codec Private Data content
I wish this helpful for you There is no guarantee that the PPS/SPS are transmitted inside the RTP stream. I would extract PPS/SPS during the RTSP setup process.
TAG : video
Date : October 07 2020, 11:00 PM , By : Erwin
In Wagtail, are there any options to display a hero block with a video background?
In Wagtail, are there any options to display a hero block with a video background?
like below fixes the issue Typically hosting your own video isn't generally accepted to be a "good idea", but I understand the need for it. There's a Torchbox created package called wagtailmedia that you can install. It gives you a document-like mana
TAG : video
Date : October 05 2020, 08:00 AM , By : wrb302
How to estimate the file size of a video in a particular resolution?
How to estimate the file size of a video in a particular resolution?
wish helps you You can’t . File size is a function of bitrate, and is resolution independent. You can have a 1080p 30 second file be 2 megabytes, or 200 megabytes depending on the complexity of the content and quality you wish to achieve.
TAG : video
Date : September 29 2020, 11:00 PM , By : Alex Sadzawka
Is there a way if a video file has pixelation in FFmpeg?
Is there a way if a video file has pixelation in FFmpeg?
it helps some times Any lost packet will inadvertently lead to decoding errors (both in video/audio streams), so in principle you already have your solution if you inspect the debug log while decoding. Is there a mismatch or decoding error? Then your
TAG : video
Date : September 27 2020, 01:00 AM , By : KS9
What is the best ffmpeg command keeping the best quality to convert a m3u8 file into a mp4 file?
What is the best ffmpeg command keeping the best quality to convert a m3u8 file into a mp4 file?
around this issue Ok so I downloaded a .m3u8 file on the Internet. I saw that this file extension corresponds to a HTTP Live Streaming protocol also called HLS. This protocol consists of an index file (the m3u8 file) that is a text file containing se
TAG : video
Date : September 26 2020, 08:00 PM , By : Genipro
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