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

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5
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0answers
1k views

What does the FFmpeg warning “Missing picture in access unit with size x” mean?

I've recently updated to the most recent version of ffmpeg and now everytime I edit a flv, I always get endless warnings: [Null @ 002de180] Missing Missing picture in access unit with size xxxx (...
4
votes
0answers
2k views

YouTube pages unresponsive on Chrome

For one or two days now, whenever I open a YouTube page on Google Chrome, I have dialog boxes similar to this one : On this screenshot, the active tab is not the YouTube page, but the same bug ...
4
votes
0answers
2k views

ffmpeg minimal requirements configuration for encoding and decoding h264 files

I'm trying to compile ffmpeg with minimal requirements in order to encode/decode with h264. So far my command line configuration is : ./configure --disable-yasm --disable-everything --enable-encoder=...
4
votes
0answers
4k views

iTunes video black screen until select computer output

I don't remember this happening before, but now whenever I play any video in iTunes (podcast video, movie, TV show, iTunes extras stuff but the menus work) it just shows a black screen with the sound ...
3
votes
0answers
105 views

Youtube-DL: How to strip video information/description when converting audiofile to MP3?

This might be picky, but when I use Youtube-DL to convert audio from a video to MP3, I let it also tag the title and embed the thumbnail from the video. Somehow it adds the video description and some ...
3
votes
0answers
52 views

Watching YouTube and saving network usage

Like me, some people may be constrained by the monthly cap they can consume the Internet usage. Thus, my question is, Will replaying YouTube videos again cost you twice the network usage? I always ...
3
votes
0answers
54 views

FFMPEG / x264: Single pass: how do you raise start time bitrates?

When using single-pass mode with a VBV size specified, libx264 will initially "sandbag" the bitrate, presumably due to lack of evidence (or perhaps even a bug). (This is an ironic followup to this ...
3
votes
0answers
113 views

Windows 8.1 Video Screensaver shows grey film

I have a touch screen on display. I want the system to have a little video screen saver. I installed Windows Essentials so I would have this functionality. When trying to play the screensaver all I ...
3
votes
0answers
7k views

Asus Zenbook UX305 video driver repeatedly crashes

Multiple times a day I get this error: "Display driver has stopped responding and has recovered". The screen goes black for a few seconds and all programs that rely on the GPU shut down (Google Maps ...
3
votes
0answers
615 views

ffmpeg add alpha channel to a video

Basically I have a video with a green background, and I mean a perfect green background (red = 0, green = 255, blue = 0) and I want to convert this to alpha (i.e add an alpha channel where 0 255 0 ...
3
votes
0answers
527 views

Packets are not in the proper order with respect to DTS when using libx264 for video

I'm trying to use the following command to transcode one stream to a different format and send it over to RTMP server for live streaming. This is the command I am using: ffmpeg -f mxg -i http://...
3
votes
0answers
2k views

Flux Disabling it for specific Windows/Monitors (VLC hardware overlay?)

F.lux is some color management application. My problem, with multiple monitors, is that I multitask. There are not distinct movie watching times, and coding/working/browser times; It is just all at ...
3
votes
0answers
545 views

Possible to black out/dim second screen while using multiple displays in VLC 2.1.3 fullscreen mode?

Pardon if this is a duplicate, but I searched and could only find the reverse of my question. I remember VLC used to have an option to "not" black out the second screen when playing a video in ...
3
votes
0answers
179 views

Indicate in Windows which video files have been viewed

A rather specific problem... I watch video's using VLC. (I've found Windows Media Player and XBMC too cumbersome.) We are always trying to find which was the latest show in a series that we last ...
3
votes
0answers
1k views

Playing and recording a live stream from another computer webcam using VLC/FFmpeg

I was trying lately to set a video server on one machine and play it in a differen machine, it works with me.. but the problem is that it always stuck and become jammed in the middle .. and it is very ...
3
votes
0answers
710 views

Is there a way to make FFmpeg seek faster to an end of file on a network share?

I'm using ffmpeg to generate image previews from flv videos. The OS is Debian 5 and it's the apt version of ffmpeg. The flv files are located on a NAS share that is mounted as NFS. Getting the ...
2
votes
0answers
138 views

Open a video in VLC from browser (not plugin)

I'm hoping to find a way in which I can automatically open a video into VLC from a browser (likely Firefox). For example I have a video at http://ip/video.mp4. And I'd like to be able to click on the ...
2
votes
0answers
328 views

How can I overlay the captured timestamp onto a video using ffmpeg in YYYY-MM-DD HH:MM:SS format?

I am trying to overlay a timestamp (date and time when frame captured) on video frames for a stored video file using ffmpeg. This succeeds in displaying time in seconds since the beginning of the ...
2
votes
0answers
129 views

ffmpeg's Dolby Pro Logic feature is leaking center channel into surround channel

This is kind of long because I wanted to cover everything we’ve tried, which are many, many things, so no one will waste time with a response covering something we already tried. I am the technical ...
2
votes
0answers
75 views

Desktop Hyperlink to Specific time in a video

Using a Spreadsheet, I pasted this URL in: file://localhost/Volumes/Macintosh HD/Users/username/Tutorials/Photoshop/Using Layers.mp4 When I click on it, it opens up the video in VLC and it ...
2
votes
0answers
102 views

How to frame accurately cut a video with ffmpeg?

I have a video. Here is it's ffprobe output: > ffprobe 7347-00009\ kliksa.mp4 ffprobe version 2.6.1 Copyright (c) 2007-2015 the FFmpeg developers built with Apple LLVM version 6.1.0 (clang-602.0....
2
votes
0answers
199 views

HDMI switcher causes screen to blink at 1440p on Windows

I use an HDMI switcher to easily switch my main monitor between my laptop and my desktop. It's a really simple standalone switcher with three HDMI inputs, one HDMI output, and an optional micro USB ...
2
votes
0answers
364 views

Capturing TS video stream gives Invalid timestamps and Invalid DTS error messages

I'm capturing a video stream using ffmpeg -i "http://streaming_url.com/playlist.m3u8" -acodec copy -vcodec copy -absf aac_adtstoasc "out_put_file.mp4". The m3u8-file links a list of .ts-files. ffmpeg ...
2
votes
0answers
91 views

How do I remove hardcoded subtitles?

I have a video. There are hardcoded subtitles (chinese) in this video but I want to add my own english subtitles. How do I remove them? Is it possible to put a black rectangle over the subtitles and ...
2
votes
0answers
142 views

Crop video with FFMPEG based on data from tracking algorithm

I have tracked a moving object in a video file using OpenTLD. This generated a file with the coordinates of the object's bounding box for each frame. Now I would like to use ffmpeg to crop the video ...
2
votes
0answers
54 views

Any empirical length limits or caveats about MP4's of 7400 seconds?

I was investigating a curious issue I have with the playback of certain MP4 files on my BluRay player; in particular, it seemed files over two hours simply would not play (player locked up). As I ...
2
votes
0answers
217 views

How to record video into circular buffer?

I want to build low cost IP camera with storage out of webcam, OpenWRT router and flash drive (or probably hard drive). It's not difficult to do, but I would like to store like last 24 hours, ...
2
votes
0answers
119 views

irfanview show .mov videos in main window

I'm using irfanview as my main image viewer, however I'm a bit annoyed by the fact that .mov files (from my smartphone) are played in an external window (either quicktime or the other external video ...
2
votes
0answers
1k views

avconv stream video from USB webcam without delay

I need to stream video from USB webcam. I am using avconv, but it has delay min 5s. Is possible to stream in real time without delay? avconv -f video4linux2 -i /dev/video0 -vcodec libx264 -f mpegts ...
2
votes
0answers
149 views

FFmpeg cuts off ~50ms when I extract+convert audio from video

I want to extract the audio stream from many .MOV files with ffmpeg. The goal is to have output files with small file size and perfectly equal sound to the input file. Currently I'm using this ...
2
votes
0answers
603 views

F4V to MP4 via FFMPEG (Bitrate viewer)

I have a several F4V that I've captured using Flash media Live Encoder and I need to convert them to MP4s. As I understand F4V are fairly identical to the MP4 format so we used "copy" for the video ...
2
votes
0answers
232 views

Is monitor suspending supported via a HDMI to DVI cable?

My computer has DVI and HDMI video outputs while I have two DVI monitors and a cheap HDMI to DVI cable. Both monitors go fine into and out of standby using DVI-to-DVI connection. Both also display ...
2
votes
0answers
412 views

How to disable widescreen video in Skype?

Since the latest (forced) update, Skype insists on displaying my video in widescreen (16:9) format. The problem with this is that it has a lower vertical resolution: in the old 4:3 mode, the video ...
2
votes
0answers
1k views

FFMPEG create zoompan shaky or jittery

I want to create 5 second mp4 video from 1 image. When I use below code the video is smooth. Default direction is zoom in to top left. ffmpeg -loop 1 -i prop1.jpeg -vf "zoompan=z='min(zoom+0.0015,1....
2
votes
0answers
239 views

How to check .mp4 file is corrupted or not.

I am recording two different videos in the .mp4 format using ffmpeg command and after that combining them. But sometimes one of the video is get corrupted because of that it will affecting on the ...
2
votes
0answers
314 views

Upscale any video-size while concatting multiple videos in ffmpeg

I already asked this question at Stack-Overflow, but they said I should post it here, so here it is: I looked for 2 hours through the documentation, but I couldn't figure it out. I currently write a ...
2
votes
0answers
396 views

I got a green overlay in my video when using multiply blend mode in ffmpeg

I´m trying to blend two videos with the multiply blend mode. But I got a green overlay in the resulting video. This is a image where are one frame of each input video and one frame of the resulting ...
2
votes
0answers
98 views

Keeping Text Sharp whilst shrinking video size - Handbrake

I've recorded a bunch of videos using a high def webcam, and with a website overlay (think of a sports broadcast, with the score on the bottom of the screen). These videos are 720p avi's, but have a ...
2
votes
0answers
270 views

Setting up an Ubuntu Linux scalable web video cluster

I'm in the process of setting up what I hope will be a robust and scalable video processing cluster for a website I'm creating. Currently, I am processing video uploads with FFMPEG on the same web ...
2
votes
0answers
1k views

FFmpeg audio and video out of sync

I know there's a ton of questions on here about video and audio being out of sync when using ffmpeg, however I couldn't find a single one that solved my problem, so I'm hoping you all can help. I'm ...
2
votes
0answers
207 views

streaming video to the internet

I want to stream my webcam live over the internet. It is mounted on a windows 7 desktop and connects to the internet over an ADSL connection. I am able to stream successfully within my home/office LAN ...
2
votes
0answers
4k views

live stream with ffmpeg and IP camera

I'm reading a live stream from a DKSEG IP camera, but the results are not good at all ... Here is the command line used for this : ./ffmpeg -i "http://192.168.0.29/videostream.asf?user=admin&pwd=...
2
votes
0answers
966 views

Using ffmpeg, can I burn in subtitles directly from an mkv subtitle track instead of a subtitle file?

I have an mkv with multiple subtitle streams. I know I can use mkvextract to extract one of those subtitle streams to a file, for example, sub.srt. I can then burn those subtitles into the new video ...
2
votes
0answers
237 views

Adding audio to video being created with image2pipe option

I am creating a video in mp4 format from a sequence of images and an MP3 audio file. For performance reasons I switched from image2 option to image2pipe option and now video is creating OK but without ...
2
votes
0answers
1k views

YouTube video stops/skips at advertisement

I'm recently experiencing that all of my YouTube videos stops downloading (and playing) whenever the Ad should come (it stops every time I get to the "yellow" sign). If it's in a playlist, right after ...
2
votes
0answers
629 views

Synchronise the playback of two different videos in VLC

So I have two different videos, which I want to play at the same and be able to pause, stop, rewind forward/backward, ... so that this happens on both of them at the same time. How could I achieve ...
2
votes
0answers
318 views

MPEG files damaged over time. How to fix?

I have a strange problem with a few MPEG files (.mp4 and .mpg). These files have been living on my hard disk for quite a long time. I also have recently copied them into a new disk, not having the ...
2
votes
0answers
300 views

No video is written in for some part of video as the segmentation from FFmpeg

I am segmenting a 20 minutes long video to hundreds of small clips . The command is like ffmpeg\\ffmpeg -i nx_1.avi -ss 399.37 -t 1 ka1_2.avi The ffmpeg is in a subfolder. It works very well for ...
2
votes
0answers
600 views

Converting series of images with ffmpeg results in black video

I've just downloaded ffmpeg since it seems to perfectly match my needs (make a video from a set of pictures). I'm currently playing around with some examples just to get started and there's something ...
2
votes
0answers
418 views

dynamic ffserver authentication

Ideally I'd like to just be able to add/remove a list of session keys to/from a text file stored on the server without restarting the ffserver instance, but am open to other solutions such as proxies -...