Media tool with support for multiple codecs, filters, and containers. Include the full, uncut console output if you have problems with an FFmpeg command.

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0
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0answers
4 views

avconv / ffmpeg covert images to video skips frames when frame type changes

I have an instance of ffmpeg that captures one fps from our home CCTV cameras. At the end of the day I have an ffmpeg script that takes those images and turns them into a video. This is fine with one ...
0
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0answers
11 views

Splitting one stream 12 channel audio into separate mono channels?

I have a 12 channel QuickTime single audio stream which I am attempting to split into separate 12 audio streams in one output file. From MediaInfo my source audio configuration looks like the ...
0
votes
1answer
25 views

Why will this mp4 file (generated by ffmpeg) play on safari but NOT firefox?

I have an mp4 file (that's blank space, I use it to test subtitles) It's currently sitting at http://projectgrin.org/SubtitlePlayer/video/output.mp4. I generated it with ffmpeg. My notes are ...
0
votes
0answers
10 views

overlay with video offset not starting audio with same offset

I have a video with audio (overlayvideo.mov) that I'm overlaying over another video (basefilem.mp4) and I'm starting the overlay at 20 seconds. The output (finalvideo.mp4) looks great, but the audio ...
0
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0answers
21 views

Can I capture a series of images named according to its timestamp

I am successfully capturing a screen shot every 15 seconds with the below command, but I need to correlate the images to where in the video the screen shot is from. The %d gives me an integer, but ...
0
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0answers
12 views

Add a scaled watermark to video thumbnails with FFMPEG

I'm trying to capture images from a video every 60 seconds AND add a copyright watermark at the bottom of each image that is captured. The below command captures and overlays, but the watermark ...
0
votes
0answers
23 views

using ffmpeg to repair corrupted MP4 video files from Xiaomi Yi

did not know wether to create a new thread or to post in an existing one. Decided for the first option, as my case seems to be a little different as I do not have one video corrupted but plenty of ...
0
votes
1answer
38 views

Reducing bitrate with ffmpeg using `-b:v 500k` doesn't actually reduce bitrate to 500k

I am trying to create several downgraded versions of a video file with ffmpeg. I am using the following command via the command line (the command is taken from the documentation): ffmpeg -i ...
0
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0answers
14 views

Which audio codec is preferable to use for mp4 video?

I use standart codec for encoding and i don't like the quality of audio even if there is larger audio bitrate. ffmpeg -y -i input.avi -i watermark.png -filter_complex ...
0
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0answers
10 views

ffmpeg concatenate dynamic chunks (on-the fly)

The ffmpeg docs for concat lists the following way ffmpeg -f concat -i mylist.txt -c copy output The mylist.txt file contains file like file '/path/to/file1' file '/path/to/file2' file ...
0
votes
1answer
3k views

ffmpeg fastest way to convert videos avi to mp4

I have server which has: 8x3,4 (sandy bridge cpu) 10gb ram i tried different combinations to convert vvideos i mean avi to mp4 but it takes so long: - ~20mins=~200mb maybe there is some ffmpeg ...
22
votes
8answers
46k views

How to convert video to images?

How can I convert a video file to a sequence of images, for example one frame every N seconds. Can mplayer or ffmpeg do this? I have used MPlayer to grab screenshots manually but I would like to ...
1
vote
6answers
9k views

No such file or directory in FFmpeg

I am attempting to use FFmpeg to extract audio from a mp4 and I keep running into this error: CFileffmpegvideo.mp4: No such file or directory exist. I am in command prompt (in Windows 7) and have ...
1
vote
0answers
19 views

How do you keep FFMPEG / libx264 from producing a high bitrate at the start of the video?

I have noticed that the Linux version of FFMPEG tends to blow its bit budget like a drunken sailor at the very beginning of a video. Is there a way to prevent this and/or suppress it? I looked thru ...
0
votes
0answers
6 views

Libvpx install with Yasm in non default directory

i can not install libvpx because it is looking for Yasm in the default directory is there a way to tell it where Yasm is installed?
1
vote
1answer
218 views

FFMPEG / libx264: How to specify a variable frame rate but with a maximum?

Instead of providing a fixed frame rate to FFMPEG/libx264 (-r/-framerate), I would like to specify a variable frame rate with a MAXIMUM value, and allow libx264 to down the frame rate as it sees fit. ...
0
votes
0answers
28 views

Using FFmpeg, can I make a batch file do nothing if it's going to upscale my input file?

I'm running an FFmpeg batch file through a digital media repository. My desire is for it to treat files similar to if it was uploaded to YouTube or Vimeo. To do this, I need it to convert the file ...
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votes
0answers
10 views

How do i add a video delay in ffmpeg?

I have the standard notepad script and i have been given the task of adding a video delay to our stream i have never used ffmpeg before and i would like to know how to add this delay or what i have to ...
0
votes
1answer
14 views

Retrieving height with FFMPEG

I made the following command I use to get the height of a video: ffprobe -v quiet -print_format compact=print_section=0:nokey=1:escape=csv -show_entries stream=height "source.mp4" Sometimes it ...
0
votes
1answer
4k views

convert RTMP streaming to HLS Streaming using FFMPEG

i am doing rtmp streaming to HLS streaming using FFMPEG , the following code is used to convert my desired option ffmpeg -v verbose -i rtmp://xxxx.com:1935/live/live1 -vcodec libx264 -acodec aac -ac ...
9
votes
2answers
8k views

Where can I download ffmpeg with libfaac?

Where can I download ffmpeg with libfaac (for Windows)?
11
votes
2answers
9k views

FFMPEG: Convert m4a files to mp3 without significant loss of information / quality. Automated bitrate

I have a load of audio files (about 1000) which I want to convert from m4a to mp3 so I can use play them on a CD player which has a USB port. I tried doing something simple like: ffmpeg -i FILE.m4a ...
1
vote
1answer
20 views

ffmpeg overlay last frame remaining in video

Have an issue where an overlay video has it's last frame remaining in the output video until the full video is complete. The full video is 10 seconds and the overlay video is 5 seconds. The overlay ...
2
votes
2answers
24 views

Fastest way to cut and remove parts of a video

I have a movie which is encoded using H264 (mp4) and is 800 MB in 720p format. I need to remove some parts of it for example remove 10:25 to 10:30 and so on. I've worked with adobe premiere buy it ...
0
votes
0answers
16 views

FFmpeg doesn't see any fonts in the directory set in fontconfig

FFmpeg's ASS filter works properly with the following fonts.conf file: <?xml version="1.0"?> <fontconfig> <dir>/Library/Fonts</dir> </fontconfig> But when I change ...
0
votes
1answer
12 views

Install package not in repositories so that dpkg knows about it

I am trying to compile some software for my raspberry. During the configuration process, the following appears: configure: error: Requested 'libavcodec >= 55.0.0' but version of libavcodec is ...
0
votes
0answers
12 views

ffmpeg screencast detect screen resolution

I do not want to put the screen resolution my self. I would like to screen capture full size. Currently I do: ffmpeg -f x11grab -r 15 -s 1366x768 -i :0.0 -qscale 8 ~/Desktop/yoyoyo.ogv How can I ...
0
votes
0answers
27 views

Encode H265 to hvc1 codec

Here is the info of my source file: I want to keep audio quality and just encode the video track so I use this command: ffmpeg -i INPUT -c:a copy -c:v libx265 video-h265.mp4 This is the result: ...
0
votes
2answers
3k views

HTML5 video player stutters even after video is loaded

I am using jwplayer to display videos on my websites but cannot manage to make them running smoothly. They stutter, especially in full screen, although I wait for the video to fully load. I tried ...
0
votes
2answers
62 views

What ffmpeg command would convert a video for iPad/iPhone/iPod?

I'm currently using a batch file which (amongst other things) runs the following handbrakecli command line to convert a video: HandBrakeCLI.exe -v0 --input "D:\input.mkv" --preset="Universal" ...
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votes
0answers
27 views

watermark animated video 10 in 10min [closed]

I need a watermark equal to xvideos. some features: Centered on the vertical Font, font size Animation speed Log in txt (I get progress conversion) The most important: The watermark must pass 10 ...
2
votes
1answer
28 views

FFmpeg Sequentially Apply Filters

I'm very new to FFmpeg (just installed it this morning) and need it to do a very specific task. I have a bunch of long recordings that I need to split into non-uniform sections, add some padding ...
0
votes
1answer
11 views

Replacing ALL audio streams of a video in ffmpeg but keep meta

I already found this link but the answer doesn't really say much about replacing more than one audio track. I quite don't understand the -map things he does in there and I would just like to replace 5 ...
0
votes
2answers
35 views

FFmpeg : mp4 and multiple srt into mkv

I have a couple of srt subtitle tracks for an mp4 video. How do I make them into mkv using ffmpeg/avconv? I would like to use space efficiently. Performing conversion on Darwin v13. I will be ...
3
votes
1answer
2k views

ffmpeg - Output file does not contain any stream

When I try to take Screenshots from an AVI file I get the above message with an empty jpg/png file. But Screenshots from MP4 files works with any problems. My OS is Debian. MP4 Command: ffmpeg ...
3
votes
1answer
3k views

How do I merge a folder of PNG images to a mp4 movie using avconv?

I have a folder containing many time stamped PNG images which I'd like to merge to a short movie. The contents of that directory looks like this: └── images ├── img_20130421_115547.png ├── ...
2
votes
1answer
4k views

ffserver configuration to handle a large webm stream

I'm setting up an ffserver for CCTV streams with 16 cameras - all the individual channels are streaming well with a config like: <Feed 0.ffm> File /tmp/0.ffm FileMaxSize 5M ACL allow 10.1.2.2 ...
10
votes
3answers
8k views

Can FFMPEG capture from the screen in Windows?

I am trying to capture a certain region of the screen (actually its specifically a number of visible windows) on Windows XP with FFMPEG but I can only find options to capture from X11: ...
0
votes
1answer
30 views

avconv: Converting from .ts to H264, with high quality screenshots

I am using avconv to convert MPEG Transport Streams to H264. My main goal is to capture high-quality screenshots from the source video files. The TS files are interlaced, so I am first converting to ...
0
votes
0answers
29 views

ffmpeg gives error DTS out of order and Non-monotonous DTS in output stream

I'm trying to concatenate multiple mp4 videos into one using ffmpeg. The "how to" for this is mostly identical across the web: ffmpeg -f concat -i inputfile.txt -c copy output.mp4 But when I try to ...
0
votes
1answer
140 views

Transferring .wtv files from Windows 8 Pro Media Center to OS X

Does anyone have a good way to do this using only OS X tools? That is, I have a Windows 8 Pro box that has 1 job and 1 job only, record TV shows from it's cableCARD onto its hard drive. The mac can ...
0
votes
1answer
27 views

Re-encode AC3 5.1 audio with variable bitrate using FFmpeg

Does the AC3 audio format support variable bitrate encoding? If so, is it possible to use FFmpeg's -vbr option to achieve that? I'd like to avoid converting from 5.1 to a 2-channel stereo because ...
-2
votes
2answers
43 views

ffmpeg how to convert mkv vp90 to mp4 h.264?

i would like to ask how to convert an .mkv VP90 to an mp4 h.264 ? I downloaded .mkv video from youtube and it's using VP90, VLC is unable to read VP90, so i have to convert it to my usual H.264, in ...
1
vote
2answers
2k views

ffmpeg edit avi metadata and audio track naming

I have a bunch of movies in avi format on my disk. However, they don't contain any metadata like title etc. I found a command which would do it for me : ffmpeg -i input.avi -metadata ...
1
vote
1answer
22 views

How to overlay multiple video files and merge all audio with ffmpeg?

I overlay from 2 to 5 video files in a grid and I want to merge all the audio from each video. Here is my code to combine 3 video files. I think it works, but I get a warning I don't like. ...
0
votes
0answers
25 views

How can I send a region of the screen to a TV that is connected to HDMI port ? (by FFmpeg or C# codes or etc)

I need to send a region of the screen to a TV that is connected to HDMI port. How can I do it? Is it possible by FFmpeg or other tools? (Cheap commercial or free tools)
1
vote
1answer
21 views

Using ffmpeg to extract segment in the middle of long video

I need to extract a 30 second interval from the middle of a video, while converting it to webm. ffmpeg seemed like the perfect one liner: ffmpeg -i long.mkv -vcodec libvpx -b:v 1M -ss 02:00:00 -t ...
1
vote
1answer
125 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 ...
2
votes
4answers
10k views

How can I convert AVI files into MPGs with ffmpeg?

I have this problem with some AVI files. The output of ffmpeg -i file.avi contains the line [NULL @ 0x97c4d40]Invalid and inefficient vfw-avi packed B frames detected. Someone advised me to ...
0
votes
1answer
26 views

RTMP , RED5 multicasting

I am trying to implement multicast on a red5 server specific to an application called Bigbluebutton. It uses RTMP for audio, video and texts. problem: I cant use flash media server to implement the ...