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

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1answer
76 views

FFMpeg cant concatenate videos: Input link in31:v0 parameters (size 1280x720, SAR 0:1) do not match the corresponding output link in0:v0 parameters

I am using fluent-ffmpeg for NodeJS to combine many (50) videos. The command fluent-ffmpeg generates is: ffmpeg -i ./temp/1426738868618B778176A-254A-47E5-80D4-AF9E2DB836C6.mp4 -i ...
0
votes
1answer
83 views

Ffmpeg upscale and letterbox a video

I have a video with that is 480x360 in resolution, what I want to do is upscale this video to 1280:720 and not loos the original videos aspect ration ( letterbox the left and right side) So I know ...
0
votes
1answer
74 views

FFMPEG concat intro video to each file in directory (all mp4)

I'm trying to write a concatenation script (for osx) to add an intro.mp4 video to over a hundred other mp4 videos in a directory. The codec will stay the same mp4, the intro filename will stay the ...
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2answers
145 views

YouTube video crashes only when paused when a using headset, while in Firefox

I have a Logitech G35 headset, as well as a Logitech Z5500 5.1 surround system. I switch between these depending on need. For example the speakers for music, the headset for gaming. Now, sometimes I ...
1
vote
1answer
45 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 ...
1
vote
1answer
40 views

How can I configure ffmpeg to encode h.264 video with a specific log2_max_frame_num_minus4 value?

I am working on a project where we are splicing HLS video segments. The HLS standard conveniently includes an #EXT-X-DISCONTINUITY directive to signal that the player should be ready for video that ...
0
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1answer
259 views

How to use VLC to watch a file (while it is being modified) on a SSH server (using sftp or smth else)?

I'm using my ssh server to record videos and I'd like to be able to watch them (on a PC using Windows 7 or 8) during the recording. I can of course transfer the file when I'm done and watch it, but I ...
1
vote
1answer
114 views

FFMPEG Video Concat and Overlay

I want to combine two ffmpeg commands to a single command. I am using ready made ffmpeg binary in my Android application. I want to concat .ts files and overlay an image. I am using following ...
0
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1answer
53 views

Create DVD from MP4 using FFMPEG?

I want to convert an MP4 video into a DVD using a Linux-based process such as FFMPEG. Currently we're using Nero to burn MP4 to DVD video, but I want to automate the process as much as possible. When ...
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0answers
41 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
59 views

how to speed up the process of the ffmpeg command

I want use the overlay filter to composite the video with some image, Command is ffmpeg -i 30.mp4 -i out1.png -i out2.png -strict -2 -filter_complex "[0:v][1:v]overlay=enable='between(t,0,1)' [out]; ...
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0answers
7 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 ...
0
votes
1answer
164 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 ...
0
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1answer
57 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 ...
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0answers
27 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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0answers
50 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 ...
0
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1answer
60 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
45 views

FFMPEG How do I use the apad filter in a chain of filters in filter_complex?

My input is a video file with an audio track. If the audio is shorter than the video I need to extend the audio track to the length of the video. It works great with the apad filter: "C:\Program ...
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0answers
35 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 ...
0
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0answers
71 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 ...
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0answers
30 views

FFMPEG results in a black video from converting images

I am attempting to create an mp4 video from a sequence of images numbered 1 to 100. The problem is that I keep on getting an output video that is black. Each images is as such all the way to 100. ...
0
votes
1answer
71 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 ...
0
votes
1answer
26 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
votes
1answer
35 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 ...
1
vote
1answer
69 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 ...
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0answers
33 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
77 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 ...
1
vote
1answer
36 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
42 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: ...
0
votes
1answer
72 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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0answers
66 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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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
80 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
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0answers
57 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 ...
1
vote
1answer
67 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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0answers
33 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
36 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) ...
0
votes
1answer
290 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 ...
1
vote
1answer
49 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 ...
0
votes
1answer
825 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 ...
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0answers
22 views

Video card not working only on one computer

I got this weird problem. My girlfriends computer suddenly just stopped displaying any picture oon the screen. Video card is Nvidia GF9400GT, which is originally silent, but I've added one 60mm fan to ...
0
votes
1answer
45 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 ...
0
votes
1answer
8 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 ...
3
votes
2answers
1k views

Does resolution matter in projectors if watching movies?

I can see the difference when projecting a computer screen (e.g., Windows desktop, start menu, etc) in a 800x600 Vs. 1280x800 resolution for example. But when watching movies is there going to be a ...
0
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0answers
14 views

Join two matroska videos without re-encoding

I have two videos in mkv format, one 50mb (2 minute) and the other 1.4 Gb(2hr 23 min). I'd like to just join the two without going through a 30 hr long encoding process. Is there a way? PS: I tried ...
0
votes
3answers
2k views

M3U8 file to MP4 conversion?

Can an M3U8 video file be converted to MP4? I have had no luck finding a file converter that can do this since the M3U8 file is really an Audio playlist with many smaller files in a folder.
0
votes
1answer
90 views

Avoid ffmpeg re encode using complex filter

I have a list of ts files that will be concatenated to being trim later and encode it in mp4. All of it is working ok... however the problem I have right now is the file is re-encoded... and that is ...
0
votes
0answers
5 views

Enable onboard video on Intel DH55HC with Ati Radeon HD4650 on PCI-e [duplicate]

I am currently using dual monitors on an ATI Radeon HD 4650. I have an extra monitor that I would like to add using the on-board video. I can switch from on-board to PCI-e video in the Bios, But I ...
2
votes
1answer
159 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 ...
0
votes
1answer
43 views

Is it possible to use HDMI for audio and VGA for video on one computer?

I have a professional Yamaha home theater system that I plug up to my windows 7 pc (via HDMI) for playing audio. My tv is broken and I can only use my monitor to display video. This monitor does not ...