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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17 views

unable to run ffmpeg on nginx server [on hold]

i was trying to run the ffmpeg command on the ngnix server running on Webmin/virtualmin. echo exec("/usr/local/bin/ffmpeg -i test.mp3 -codec:a libmp3lame -b:a 128k out.mp3"); And $ffmpegpath= ...
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9 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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23 views

ffmpeg issue creating video on Linux

I have the following ffmepg command that works perfectly on my local server running windows but when I try on my Linux server I get the following issue: The video.mp4 is getting created but it stops ...
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1answer
23 views

Extracting the index of key frames from a video using ffmpeg

I'm using ffmpeg for extracting key frames from a video. This is the command: ffmpeg -i test2.mp4 -vf select='eq(pict_type\,I)' -vsync 2 -s 160x90 -f image2 thumbnails-%02d.jpeg How can I get the ...
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12 views

Seeking via http protocol m3u8 file and preloading

I have m3u8 + ts files on server. ffmpeg -i http://example.org/dir/index.m3u8 -c:v copy -f flv - this command, helps to read the full array of ts files. I have two main problems. ffmpeg receives ...
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18 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 ...
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11 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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10 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 ...
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1answer
14 views

Extract image from an RTSP gives me errors

I am using FFMPEG in a DOS Prompt. -i rtsp://admin:admin@192.168.0.17:554/video_0 -q:v 15 -s 360x240 -vf \"select='eq(pict_type,PICT_TYPE_I)'\" -vsync vfr -f mjpeg -i - I am getting the error: ...
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9 views

ffmpeg start recording at certain time

I'm searching a ffmpeg option that let me start recording streaming source at a certain time: I start my php script with crontab, inside my php I run ffmpeg for X minutes. Ffmpeg takes some seconds to ...
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4 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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1answer
15 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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9 views

Having issues burning subtitles with ffmpeg

I followed this wiki on how to burn the srt file into the mp4 file: ffmpeg -i video.avi -vf subtitles=subtitle.srt out.avi It's been running overnight and the end seems far. Is it normal? How can I ...
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1answer
12 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 ...
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20 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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36 views

ffmpeg through shell script is not running

I have to run a ffmpeg command . I am running the below command in command prompt and works fine. ffmpeg -v verbose -i rtsp://99.192.203.99:8091/test.sdp -i rtsp://99.192.203.99:8091/test.sdp ...
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1answer
28 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 ...
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1answer
42 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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1answer
19 views

run 2 different versions of ffmpeg form same server

I'm trying to run a second version of ffmpeg on a unix server without update or remove the old version. In the server it's installed version 1.0.1, can I compile latest version of ffmpeg (current ...
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1answer
29 views

Convert from avi to uncompressed tiff using ffmpeg

In Use ffmpeg for JPEG to TIFF conversion there is an answer how to convert to TIFF. So, I followed that process written on that answer: ffmpeg -i input.avi -pix_fmt rgb24 output.tiff ...
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1answer
27 views

Skipping a frame without re-encoding H.264 video

I have an mp4/h.264 video which only contains I-Frames. I want to skip one of those I-frame without re-encoding the entire video. I tried this: ffmpeg -i "file.mp4" -vf select='not(eq(n\,10))' ...
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1answer
21 views

How can I avoid a black background when fading in an overlay with ffmpeg?

I'm using ffmpeg to fade in an overlay from a non-transparent image (e.g. a JPEG or PNG without alpha channel): $ ffmpeg -i big_buck_bunny_480p_surround-fix.avi -loop 1 -i logo.png \ -filter_complex ...
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32 views

Crossfading Video AND Audio with ffmpeg

This Super User answer crossfade between 2 videos using ffmpeg has got me so far, but now that I have tried many solutions and seen every SO link out there, it's time to ask you all for help. I am ...
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1answer
27 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 ...
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19 views

Extract frames from video and set timestamp on images

I want to extract frames every 10 seconds from a video and geotag these frames using a GPX track. On my Windows 8 computer I have tools to extract the frames (FFMPEG), set image timestamps (ExifTool) ...
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1answer
36 views

create video from single jpg and no audio

For a time lapse video project I want to create a header (with some title text). The header is just one still image which I give as jpg. I have seen other answers that produce still image video from a ...
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29 views

ffmpeg does not work but VLC does

I am trying to read a streaming (http://150.161.93.174:8080/stream) using ffmpeg The streaming works perfectly when I try it in VLC. But in ffmpeg I get an error: http://150.161.93.174:8080/stream: ...
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15 views

crosstool-NG can't retrieve cloog-ppl

I am trying to build a cross-compiler for my Raspberry Pi to ultimately compile ffmpeg for it and I am following this tutorial. After having configured ct-ng and upon calling nt-cg build it fails and ...
0
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1answer
15 views

FFMpeg filters compilation on CentOS

I have compiled FFMPEG on CentOS 6.6 using this guide: https://trac.ffmpeg.org/wiki/CompilationGuide/Centos But, whenever I issue command ffmpeg -filters The output is FFmpeg version 0.6.5, ...
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1answer
40 views

using ffmpeg concat on slideshow videos

I am using ffmpeg to build time lapse animations from still images. The first image is repeated to create a header. Next steps is to concatenate header plus time lapse for final video. Both header and ...
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29 views

My ffmpeg stops streaming after a few seconds

I am using ffmpeg. I type this in a DOS Prompt: ffmpeg.exe -i rtsp://admin:admin@192.168.0.8:554/video_1 -an -f image2pipe -vf fps=fps=6 -qscale 0 - It works but then just stops. So, I amended ...
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1answer
29 views

Creating a log file for my ffmpeg output

I am trying to find out why my rtsp dos command using FFMPEG is 'freezing'. Ihave been told I would have more luck on SuperUser but I have been told to produce a log file 1st. I have looked and I ...
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36 views

Streaming desktop with FFmpeg

I can stream in a file or to twitch.tv with stream2address() { INRES="1920x1080" # input resolution OUTRES="1920x1080" # output resolution FPS="15" # target FPS GOP="30" # i-frame ...
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1answer
45 views

ffmpeg and iFrame output and quality of JPEG

I was looking for a solution to a problem and on my travels I cane across something linked to what I was doing which prompted a 2nd question. I bundled both these questions here. If I should not I ...
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32 views

ffmpeg - slideshow image duration issue

I've created a video slideshow from images. From the docs it says: In this example each image will have a duration of 5 seconds (the inverse of 1/5 frames per second). ffmpeg -framerate 1/5 ...
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1answer
28 views

ffmpeg How to draw a box at the bottom of the video

From the docs it's pretty straight forward how to create a box at the top with the y=0 drawbox=x=10:y=0:w=200:h=60:color=red@0.5 But how can I draw the box at the bottom?
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1answer
37 views

Ffmpeg chain references to other parts of the command for dynamic watermark size

I have been reading the ffmpeg documents for a while now. But I can't seem to wrap my mind around how the filters, naming and backreferences work. Or whether what I want is even possible. I am ...
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0answers
18 views

Show multiple text using ffmpeg

I've created a video slideshow (http://humor15.com/media/out2.mp4) from images with a background image but I'm looking for a way to be able to change the text at the top in that case "Eterni-T" for ...
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1answer
52 views

ffmpeg dyld: Library not loaded: /usr/local/lib/libmp3lame.0.dylib

I am getting this error when running ffmpeg on OSX Yosemite 10.10.2 ffmpeg dyld: Library not loaded: /usr/local/lib/libmp3lame.0.dylib Referenced from: /usr/local/bin/ffmpeg Reason: image not ...
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15 views

Trying to connect windows named pipes to ffmpeg input pipes

I have the following input options in my ffmpeg command line: -i \\\\.\\pipe\\videopipe -i \\\\.\\pipe\\audiopipe The full command is this one: ffmpeg -r 24 -pix_fmt rgba -s 1280x720 -f rawvideo ...
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0answers
46 views

Video color is different in different programs. Which one is correct?

Someone on Reddit made a gif. I decided to try remaking the gif. My gif is not the same color as their gif. I opened the video source of the gif in VLC and MPC-HC, took snapshots using the program ...
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1answer
62 views

Video takes long time to start

I use this command to convert video using ffmpeg on phpvibe: unfortunately the videos take a long time to start on firefox so I'm looking for a command to move the video's atom to the beginning so ...
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1answer
31 views

Show multiple images using ffmpeg

I've created a video slideshow from images with a background image but I want to be able to add another picture at the bottom left of the video. How can I make the -i "C:/test/logo.png" show at the ...
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0answers
40 views

ffmpeg watermark with opacity

I can easily add a watermark on my video, but this watermark is on opacity 100%: ffmpeg -i aa.mov -i image.png -filter_complex 'overlay=10:10' bb.mp4 But how to make the image file have an opacity ...
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1answer
34 views

How to remove words “Video” from a video with ffmpeg?

I use ffmpeg to make a movie with 100 images *.png, but in the produced movie video.mov, there's big word VIDEO.mov at the bottom of my movie and it covers some of my info within the images, how can I ...
0
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1answer
28 views

ffmpeg atempo filter not working

When I run the following: ffmpeg -i input.mp3 -filter:a "atempo=2.0" -vn output.mp3 I expect output.mp3 to be twice as fast (and half the length) of input.mp3, but it is exactly the same speed and ...
0
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1answer
41 views

batch file for hardcoding subtitles in multiple videos with ffmpeg

My question at the top: What is the correct way to refer to a dynamic file name for the ass filter when using -filter_complex in ffmpeg? The story and my attempt: I have a folder that contains ...
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1answer
53 views

Insert background image using FFmpeg

I've just started using FFMpeg and I'm trying to create a video slideshow from images with a background image. The background would not change only the image. Similar to this: I have the following ...
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19 views

How to constrain/stretch a video to a fixed duration using ffmpeg or avconv?

So I have a few hundred clips of videos, about 1 to 5 seconds each, that I'd like to all play at 2 seconds each...this means for the 1 second videos, they get stretched out, and the 5 second videos, ...
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1answer
51 views

FFMPEG conversion from webm to mp4 intermittent on Ubuntu 14.04 [duplicate]

I am trying to convert .webm file that we get from google's screencastify to .mp4 file. I need it to be playable using Windows Media Player. I need it the file to be playing with all the WMP versions ...