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

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1answer
26 views

Unable to re-encode audio stream with different bitrate using ffmpeg

A similar question has been asked elsewhere without a satisfying answer for me. The following ffmpeg command results in error. When "-c:a copy" is added to just copy the audio stream, the video ...
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0answers
26 views

Is there a way to force or maintain the aspect ratio of a window when resizing it?

I have certain windows like VLC for example that I'd like to be able to resize without them losing a 16:9 ratio. This would be useful for image viewers too. And just plain functionality would be ...
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0answers
6 views

Megui shows error after avi upload

Hi Guys Im struggling with avi source into avisynth in Megui. I havent taken audio out but figured I could just put same file into audio input. However I read so many different solutions and I should ...
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1answer
94 views

VLC UDP network stream does not work in Windows, but does in Linux

I've got a udp stream (not accesible to the outside world) that VLC has able to play under Linux, but isn't able in Windows. Windows Firewall is turned off. In order to test the udp stream in VLC, I ...
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1answer
36 views

Combine audio and video with avconv not merging video

I am trying to combine a ripped stream from YouTube that seems to be in a weird format. Anyway, the video and audio seem to play on their own but when I tried to combine it, the file size is just a ...
3
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1answer
597 views

Chrome: force youtube to play video in h.264 instead of WebM/VP9

I am using Chrome as my usual browser on OS X. Since the introduction of VP9, youtube videos are now mostly streamed in VP9, requiring a lot of CPU computing to decode and killing my battery. In ...
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0answers
37 views

ffmpeg generates videos with start time greater than 0

I'm trying to cut videos with ffmpeg. I know how to do it in the "normal way": ffmpeg -i test.mp4 -ss 0 -t 6 -c:v libx264 -profile:v main -level 3.1 -preset medium -crf 20 -r 25 -b:v 1200k -minrate ...
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6answers
952 views

Video and audio in all applications unable to play past first frame/second

Update 2 : I have at long last found the source of the problem. This appears to be caused by my Logitech G35 headphones. ...
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0answers
26 views

How can I fix a choppy video (that has no codec or media damage)?

I have an old video that has been copied from a DVD. The DVD failed during the reading, and both the video and the audio got choppy/lagged, with hundreds of small "stops". However, there is no ...
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1answer
31 views

How can I get exact delay between audio and video by FFmpeg?

I know how to set delay by "-itsoffset" , But I want to know how to get exact delay time. Please help me . Thanks in advance
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0answers
19 views

Get mplayer to display current time in hours and minutes

By default mplayer displays the current location in the video in seconds, which is less than useless. Example: A:4086.2 V:4086.2 A-V: 0.000 ct: 0.039 0/ 0 17% 2% 2.1% 3 0 ^--------^----- ...
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0answers
27 views

How to insert external video segments into an mkv file that uses them already

I have some mkv files with subtitles. They use other mkv files in the same folder at certain points in the video. I also have other files with the exact same video track but different audio and ...
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1answer
48 views

Issues splitting a video into multiple, less than 10 second parts when using FFmpeg

I am trying to split a video into multiple parts, however, when I set segment size to less than 10 seconds, it generates segments of 10 seconds. It works if the segment size is greater than 10 ...
0
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1answer
40 views

How to sync splitted mkv + external srt with ffmpeg?

I want to convert MKV audio from DTS to MP3 and split the file at the same time. The problem is: I need an external .srt but when I split it, the second file is desynced from video. Example: ffmpeg ...
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0answers
47 views

ffmpeg filter_complex concat does not include audio

I've managed to put together an ffmpeg filter complex which: Scales an FBI warning (fbi.mp4) to the size ($w:$h) of a training video (train.mp4). Pads the FBI warning so it's centered. Concats the ...
3
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1answer
2k views

FFMPEG webcam stream to Youtube drops frames

I need to do a live videostream on Youtube using a Logitech HD Pro Webcam C920. My OS is Fedora 20, and the command I am trying to use is: ffmpeg -f v4l2 -i /dev/video0 -flags +global_header -ac 1 ...
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2answers
56 views

How can I play old Final Cut Pro .mov files? (VLC only plays the audio.)

A few years ago, I exported some .mov files from Final Cut Pro on my old Mac Pro. I am positive that I made them self-contained files, so they didn't need to reference the original footage. I backed ...
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2answers
5k views

How do I compress my video without compromising it too much

Alright, i'm down to crunch time. I have a video that I have rendered out for something I have to turn in. The submission requires that it be At Most: 200 MB and be one of the following formats: ...
0
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1answer
22 views

Are there really audio-video sync issues when playing Blu-ray movies on a pc?

I would like to buy a Blu-ray player for my next PC; it would be an internal one that I would then use with a software like PowerDVD. My monitor will be a Dell U2415, with a 16:10 aspect ratio and ...
0
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1answer
22 views

Unable to seek FLV video

I can not seek flv video downloaded by rtmpsuck. Tried MPlayer2 2.0-728-g2c378c7 and vlc (2.1.2-0-ga4c4876). $ mplayer2 video.flv MPlayer2 2.0-728-g2c378c7 (C) 2000-2012 MPlayer Team Playing ...
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1answer
2k views

How to redirect YouTube's videos URL (googlevideo.com) from http to https automatically?

I want to redirect http urls in youtube videos to https. youtube's videos are from googlevideo.com so I want to use https instead of http http://r8---sn-qxau5-btqs.googlevideo.com... to ...
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0answers
19 views

rtmpdump produce bigger output then rtmpsuck

When using rtmpsuck the video has right size according to metadata ~316MB: INFO: datasize 330537967.00 but when I use rtmpdump the output has 880MB at 35% Only important exception ...
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0answers
48 views

FFMPEG RTSP streaming and absolute time seeking

I'm using FFMPEG to stream recorded video from a video camera with onboard storage. I get an RTSP URI from the camera, which plays from the very beginning of the video stream. I know FFMPEG supports ...
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2answers
672 views

Is there a way to automatically take multiple screenshots of a video?

I want to take N screenshots equally spaced out on a video of some format(FLV, mp4, etc). Is there program or a script to a way to automate this?
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1answer
28 views

Not able to stream video from my Defender SN500-4CH security system [closed]

I have a Defender SN500-4CH v1.0 security system. For some reason I am not able to see the broadcast on it when I connect it to the world. It would ask me to login, so I put the correct user name and ...
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0answers
32 views

Configure ffmpeg and ffplay to PAL signal

I have a PAL camera and a stk1160 based video grabber, which is correctly recognised as a /dev/videoN under linux. I am able to watch the feed with vlc after setting up the video standard as a PAL: ...
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0answers
32 views

Adding audio to video without re encoding

I am looking to add audio to a video without having to re encode the two pieces. I have looked at a few questions on stack overflow followed the answers and i still cant seemed to get it to work, if ...
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0answers
30 views

Play video on Atom Netbook

I have choppy effect during play video on Atom Assus EEE PC flare series 1025 with Ubuntu Linux. I was trying to play with default player and VLC one. The same net book plays the same video under ...
5
votes
4answers
148 views

How to automatically create Windows thumbnails recursively?

I am using Windows 8.1 with Windows Explorer. The image cache ("thumbs.db") is created when I visit a folder containing video, photo, or other such files. I have a problem with this because I have ...
7
votes
2answers
4k views

Drop every even or odd frames using FFmpeg?

Is there an accurate way to take raw video and extract from it a new video that contains only odd frames or even frames (by choice)? For example: I have "blah.yuv" with 400 frames (0-399). I want to ...
2
votes
3answers
834 views

What do I need to be able to convert analog video (VHS, or an old camcorder) on a Mac?

I have a number of old VHS tapes, as well as some analog 8mm tapes. I still have a working VCR, as well as the camcorder that recorded the tapes. I'd like to convert these on a Mac (MacBook Pro) - ...
2
votes
1answer
200 views

Why does FFmpeg segment_times create webm files with incorrect duration and start times?

I have a MOV file that I want to split into several smaller files (at certain timestamps in a comma-separated list). I'm simultaneously compressing the video into WEBM files. The command I'm using ...
0
votes
1answer
45 views

How to get the duration of multiple video files in Mac OS X 10.10 (Yosmite)

A folder of 10 video files, how to get the total duration of them? BTW, I have tried (Command+Control+I) and it doesn’t show the total duration.
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2answers
2k views

Is there a command analogous to afinfo for videos on a Mac OS X?

Mac OS X has the command afinfo to fetch audio file info. Is there a similar command to fetch video file info for videos (.mov, .m4v) other than the mdls command?
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0answers
39 views

Flash player seek not working when ffmpeg encoded with gop(-g) = 1

I am trying to deliver video content with frame-by-frame viewing via the SMP Flash player. For encoding, I am using FFMPEG with the x264 video codec for files with .mp4 containers. I am using the ...
0
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1answer
31 views

ffmpeg: video is not creating for uneven pixel ratio images

I am using ffmpeg to create a video using images, its creating video for uniform images (ie all the images should be same pixel ratio). It doesn't work for images that vary in frame size: it is ...
2
votes
1answer
106 views

Hardcoding FFMPEG subtitles on MP4 / MKV

I am using FFMPEG to hard code subs into a video. Having read many posts on the best approach, and whether to use mkv or mp4, but am still none the wiser. The code below uses an mp4 file. The ...
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0answers
13 views

ffmpeg Adding water mark to my Videos [duplicate]

I have a problem here, here is the code i use to make video clips with my audio files and an Image, my only problem is that i want to add a water mark to bottom-center of clips ( a png file 1056x90 ) ...
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0answers
52 views

Seeking FFPLAY command for LIVE Decklink audio input to AVectorScope filters live on screen

My first superuser question. Using FFPlay or FFMPEG I'd like to be able to have visual monitoring of live audio (level meters, vectorscope) real-time on screen from a BlackMagicDesigns Decklink ...
0
votes
1answer
323 views

Chrome youtube doesn't play/Twitch plays with no sound

I have OS X Yosemite, Chrome version 40.0.2214.115 (64-bit) When I open youtube video it loads but I can't play the video. I didn't download any extensions before youtube stopped working correctly ...
0
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1answer
147 views

How to convert a Voluson 4D ultrasound scan (.V00 file) to a video?

I have here a "4D volume cine" ultrascound scan (time series of 3D scans) created with a machine from GE Healthcare Voluson. The file is in their older, proprietary .V00 format. I want to create a ...
0
votes
1answer
45 views

How/where does a GoPro camera store HiLight tags?

My Question in a Nutshell How/where does a GoPro camera store HiLight tags? Where I have Looked for the HiLight Tags I have already tried to find the created tags in the following locations – to no ...
0
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1answer
859 views

How do I split a WebM file without re-encoding?

I have this WebM file that I need to split, but I'd like to do it without re-encoding. Putting it in an MKV container doesn't work, because the point where I need to split it is not a keyframe, so it ...
1
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1answer
48 views

How to add external library to Homebrew ffmpeg install?

I successfully installed ffmpeg through Homebrew. I want to add additional libraries/codecs. FFmpeg can be hooked up with a number of external libraries to add support for more formats. None of ...
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1answer
84 views

Proper DVD rip for serving via UPnP

I am a happy user of minidlna (version 1.0.24) on an old Mac Mini G4. It does work quite well in my environment. Since minidlna does not allow transcoding, I would like to rip a set of DVDs (mostly ...
0
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0answers
25 views

Video playback from remote filesystem lag on Ubuntu

I have laptop running Ubuntu 14.10 and used for watching movies from my server. I've installed vlc player but faced with the bug: At approximately 40 minute (can ve different for various videofiles) ...
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7answers
2k views

How do I convert Quicktime to Windows Media Video?

How do I convert a Quicktime file to a Windows Media Video file on Windows 7? What is the cheapest method? What is the the best method, regardless of cost?
1
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1answer
33 views

Erroneous volume level shifts using ffmpeg to convert AC3 in M2TS to WAV

I using ffmpeg to extract audio from non-commercial bluray m2ts video files, for subsequent loudness analysis in AudioLeak or Dolby Media Meter. The m2ts sometimes have AC3 audio and sometimes have ...
3
votes
2answers
41k views

Black screen issue playing videos in youtube on Google Chrome

when i play a video in youtube there is a black screen, see - http://prntscr.com/2wzrmn, altough i can use the interactions and hear the audio, i can't see the video. There is enough space in my C ...
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2answers
148 views

Change framerate on MKV container

I got a problem with playback of some MKV containers (89 items, totalling 196,3 GB). The audio+video are encoded in 25 fps, but the subs are totally out of sync - these are encoded on 23.976 fps. My ...