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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81 views

FFmpeg - Possible to scrub in FFplay window using lavfi?

After some help on here earlier today, I'm able to get to FFplay to render a video with some filters using lavfi. Here is an example of a simplified working command: ffplay -f lavfi ...
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1answer
76 views

Weird sound problems cropped up on Ubuntu 14.04

Please help! Today I was trying to edit some home video with KDENLive and when I'd try to preview my videos, they'd play for about a second then lock up the program. In troubleshooting, I ...
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1answer
41 views

ffmpeg using -re and -ss together

I'm using ffmpeg to livestream a video file to an RTMP server. I'm using the -re option to ensure the video is streamed at the proper rate to the live source. Occasionally I want to stream the video ...
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1answer
303 views

.MKV to .MP4 with 2 soundtrack (audio)

I found this thread: Handbrake settings to convert MKV to MP4 while retaining the original quality And I can "convert" .MKV to .MP4 with the following code: for %%a in ("*.mkv") do ...
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88 views

Capture desktop with FFMPEG on MacOSX 10.6.8

I tried to capture the desktop/screen-recording with this command ffmpeg -f avfoundation -i "1:0" out.mp4 this doesn't work because avfoundation is a framework on OSX >= 10.7 and my OS version is ...
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1answer
93 views

ffplay - Unable to Find File Using lavfi [duplicate]

I'm having some trouble using lavfi within ffplay to apply filters. I'm simply trying to pad one video, and overlay another video within the padded area. My command and console output is as follows: ...
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0answers
107 views

FFMPEG: Windows binaries with globbing (libavformat) support?

I am struggling to get ffmpeg to combine a bunch of images in to a video which have a format with a full 17 digit timestamp. 17 digits is well beyond what -i %d will support. So I want to use ...
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2answers
2k views

FFMPEG “Past duration 0.xxxxxx too large”

I'm recording an HLS streaming and I would like to save in a FLV Container. My ffmpeg's cmd is: /.../recorder/class/ffmpeg-2.6.1-32bit-static/./ffmpeg -i http://server/url/playlist.m3u8 -b:a 128K ...
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274 views

FFMPEG capture snapshot image from RTSP IPCamera

Hi I am able to stream video successfully from my IP Camera with VLC using the URL: rtsp://192.168.0.6:554/cam/realmonitor When attempting to use FFMPEG it is failing with the following errors: I ...
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2answers
399 views

Re-encoding in FFMPEG using the exact same settings as the input file

I have a use-case where I take a few MPEG-4 files, trim them and concatenate them in to one file. I have a second use-case where one of those files are trimmed and also cropped/scaled, these files ...
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1answer
225 views

ffmpeg HEVC with HLS specific fragment duration

I use a 10bit build of ffmpeg/x265 to run the following command where I decode an input x265/10bit video, pipe it into another cmd line tools and pipe again the output into a new ffmpeg instance where ...
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1answer
60 views

Possible to call a specific audio channel within a filter graph?

I know that the -map_channel argument can specify a specific audio channel within a file, but is there a way to do a similar argument within a filter graph? I'm hoping something like this would be ...
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0answers
89 views

Copy creation_date metadata when converting video with ffmpeg

I want to convert a bunch of old videos to H.264 to save space, but ffmpeg always drops the creation date, no matter what fancy -map_metadata variations I use. This is obviously a huge dealbreaker for ...
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1answer
293 views

Continuous streaming from an empty pipe, then adding data to the pipe on demand

Essentially, what I'd like to do is to have ffmpeg continuously stream to an RTMP server using an empty pipe, then when I want to stream something, add data to the pipe. My reasons for doing this ...
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1answer
435 views

FFmpeg - Apply blur over face

I'm trying to blur a portion of a video using FFmpeg (specifically to blur a face). I have been trying to use a combination of timeline editing and the various bluring filters, but I cannot find a ...
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111 views

Incorrect Codec Parameters While using '-acodec' option while Working with FFMPEG

I am working with FFMPEG Library. I am capturing streams in particular compression codes to the destination file with the specified format with the following command: ffmpeg -i ...
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24 views

Install ShareX offline

I'm about to try compiling it myself, but maybe someone knows a way around this. I need to install ShareX on a computer (win 7 standard) disconnected from the internet. Dependencies I know of is ...
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68 views

Improve FFmpeg time ? conversion takes very long

I have several rules to convert a movie to several formats and create a preview image. Problem is the execution of these takes very long. Also the outputted quality is very low. I harvested these ...
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260 views

FFMPEG concat demuxer — how to make mp4 file formats compatible

I need to automate mp4 concatenation server-side and I'm using FFMPEG. I will get uploads of mp4 files and I want to attach a Title.mp4 and End.mp4 to each one. I am also overlaying a soundtrack (the ...
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1answer
54 views

ffmpeg always asks if I want to replace the input file

I'm trying to merge a video source and an audio file together to end on the shortest flag with the latest ffmpeg build from zeranoe but all it does is ask if I want to replace the audio or video file ...
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1answer
34 views

the difference with bitrate and frame rate with ffmpeg

I am working on the project that compressed live video with ffmpeg. I want to know what is the difference between -b 2500k(bitrate) and -r 25 (frame rate)? Is the any relation?
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125 views

FFMPEG: commandline options to recording audio from mic and speakers

I am using ffmpeg version 2.4.7 on Fedora-21 workstation. I want to record audio, simultaneously from microphone and speakers as separate streams. I am using the following command for it. ffmpeg -f ...
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0answers
62 views

ffmpeg scaling input video converting it from mov to mp4 and watermarking in the center

I'd like to scale videos comming from my DSLR with ffmpeg to a resolution of 960x540, then convert the container from mov to mp4 and after all of these things I'd like to watermark that video by ...
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0answers
15 views

Concatenate video files and add a watermark [duplicate]

I have two different sets of ffmpeg commands working that I would like to try to combine. The first command is a basic "concat" command: ffmpeg -i "concat:file01.mpg|file02.mpg|file03.mpg" -c copy ...
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2answers
63 views

Is there a way to generate left and right camera views from one camera video

I have only one video available from one camera. Is it possible to create left and right camera views from one camera video and could be viewed from oculus rift-VR. No need for audio
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14 views

FFMPEG Command to repeat audio in SlideShow Video [duplicate]

I am using following ffmpeg command to create slideshow video "ffmpeg","-loop", "1","-framerate", "1" ,"-i",bg.jpg","-framerate", "1/5" ,"-i" ...
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449 views

How to know which framerate should I use to capture webcam with ffmpeg?

I'm capturing video from my webcam with the following command: ffmpeg -r 30 -f v4l2 -video_size 160x120 -i /dev/video0 output.avi The -r option indicate the framerate I want. However, it's not that ...
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103 views

Recover a corrupt .mpg file in Ubuntu

I have a .mpg file. The file is about 15 mins, but it stops playing at 7th minute. When I ran the ffmpeg error command : ffmpeg -v error -i test_dev.mpg -f null - 2>error.log I got the following ...
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0answers
26 views

ffmpeg cmd migration kubuntu14 to Win7

I have a ffmpeg cmd line that works fine in Kubuntu14 linux that I want to migrate to Win7. ffmpeg -r 8 -threads 0 -f image2 -i './Pictures/AS_p20_RS6wvlt_png/Jupiter_20150327_%2d.png' -codec:v ...
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33 views

FFmpeg Degrades Quality of Video [closed]

I have been tasked with converting a batch of videos from MOV to MP4 for an application my company is building. We're converting the videos because a short MOV file has an extremely large file size ...
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1answer
239 views

Command to create video from images with background video and audio

I am using ffmpeg in my Android application. I want to create video from images with background video and audio. Images are overlaid on video with borders. Video and audio will be repeated until all ...
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1answer
89 views

How to extract Blu-ray audio without any conversion?

As avconv (forked from ffmpeg) said, the format of Blu-ray audio stream is called pcm_bluray, but why most of the tutorials say using -acodec pcm_s**le flag (** depends on its sample rate)? Are they ...
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0answers
54 views

How can I extract a single GOP as images from a video?

I need to extract a complete GOP (group of pictures) from an MPEG-4 video and turn every frame in that GOP into a full BMP image. For example, I imagine something like this: ffmpeg -i Input.mp4 ...
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2answers
180 views

ffmpeg: how to convert mp4 to mp4?

The subject is correct ;-) My problem is this: I have a set of MP4 files; all of them play with vlc on my Ubuntu box. But when copy them to USB; and want to play them from my TV ... some work; others ...
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1answer
698 views

How do I know if hardware acceleration of the GPU is enabled in VLC?

Under the new VLC interface (Linux) with video-Catalyst driver installed what option I can chose to enable GPU hardware acceleration? How can I be sure it is enabled? $ vainfo give me this ...
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1answer
270 views

Add watermark text on mkv video using ffmpeg windows version

I want to add a watermark text to an .mkv video using ffmpeg on Windows. I want the watermark to be like a subtitle that starts on the second minute and lasts for 30 seconds and says: "copyright to ...
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1answer
87 views

Cutting out two parts from the middle of a video with ffmpeg

I have two files, rec.avi and audio_edited.wav, and what I'm trying to do is take the parts 00:30:50–01:42:56 and 02:16:55–04:03:10 of each file, concatenate those and encode them into an WebM file. ...
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0answers
40 views

How can I join two videos at equal frames?

I need to join multiple videos together, with the next one starting somewhere in the middle of the previous one. Therefore, I cant just put them one after the other, instead I need to find out where ...
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0answers
14 views

Extract audio from video with FFMPEG but not the same duration [duplicate]

My problem is that i need to extract with FFMPEG the audio contained in a video with the same duration. But for some files that i tested, the audio's duration is sometimes shorter than the video's ...
0
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1answer
181 views

Cant install ffmpeg in Fedora 19 via yum

Im trying to install ffmpeg to encode videos to html5 playback (mp4, ogg, etc...) i already added the rpmfusion repos. Im using Fedora 19 in Rackspace Cloud Server. this is the output for repolist ...
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1answer
392 views

Unknown encoder 'x264' in FFmpeg despite following proper installation instructions

I’m having an issue with FFmpeg after configuring it exactly to their own wiki’s instructions where I’m receiving the following: ffmpeg -stats -i uncompressed.video.mkv -codec x264 -preset veryslow ...
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1answer
54 views

FFMPEG is doubling audio length when extracting from video

I've got a video file, video.mp4. It is 18 minutes 23 seconds in duration. I am looking to extract the audio only from this video, and create an MP3 of the highest possible quality from the audio in ...
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0answers
74 views

How to slice video in remote http server using ffmpeg?

I want to slice video from remote host . i am using following command to do this ffmpeg -i https://s3-us-west-1.amazonaws.com/path/to/video/messi.mp4 -ss 00:00:03 -t 00:00:08 -async 1 cut.mp4 ...
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1answer
230 views

ffprobe show_entries with an entry name that uses a semicolon

I'm probing a video file to get some basic information. For example, the following uses the show_entries flag to specify the necessary data. > ffprobe -v error -show_entries ...
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0answers
57 views

EM28xx input source, ffmpeg raspbian issue

I have a big problem with USB2861 video grabber connected to RPI (em28xx module). Grabber has two input: 0=svideo, 1=composite. When I use command: mplayer tv:// -tv device=/dev/video0:input=1 ...
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0answers
56 views

ffmpeg works as a root but not as a user

As root user I can run any ffmpeg command fine and it will work but trying to run it as the user 'adinvideo' like so, I get: -bash: ffmpeg: command not found when I check the permissions I found ...
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0answers
32 views

ffmpeg subtitles with coordinates

I need to put subtitles to this coordinates 15:750 I try to use ffmpeg -i video.avi -vf subtitles=subtitle.srt out.avi How can I specify the coordinates?
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1answer
121 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 ...
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1answer
171 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 ...
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1answer
115 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 ...