0
votes
0answers
22 views

FFmpeg Upscaling Video

First I just want to say a bit more about my title, I am not referring to the fact that upscaling doesnt add data(as often asked when upscaling) - but something different. Example I have raw video ...
1
vote
0answers
18 views

Is there multiple types of transitions in ffmpeg while merging two or more videos?

I have 3 video files. I am using ffmpeg library to merge them all. While merging them right now I am using fade In/Out transitions only. I want to enhance that feature in my site, can I do ...
1
vote
1answer
36 views

crossfade between 2 videos using ffmpeg

I've been trying to achieve a crossfade transition between 2 video clips using ffmpeg but have failed so far. I'm new to ffmpeg and am mostly relying on tweaking what I can find in the documentation ...
0
votes
0answers
14 views

Video orientation flag reset or disabling it on youtube [duplicate]

I've recorded a video on my smartphone (android-based). I've been recording it in a landscape mode. Then when I uploaded it on youtube - it somehow recognized the original orientation and made it to ...
1
vote
0answers
25 views

FFMPEG create zoompan shaky or jittery

I want to create 5 second mp4 video from 1 image. When I use below code the video is smooth. Default direction is zoom in to top left. ffmpeg -loop 1 -i prop1.jpeg -vf ...
0
votes
0answers
35 views

ffmpeg - cannot fade to white in x264

I have a directory full of images that I am converting into a video using ffmpeg. The first frame is a black title frame that fades/morphs into the first video frame, with a 5-frame morph. I do ...
0
votes
1answer
69 views

Unrecognized option 'b:v' when trying to convert a video

I get "Unrecognized option b:v" when I tried to convert a video. I'm using FFmpeg version SVN-r26402. Here is my error log: Raw Conversion Log Started on 2014-06-29 00:02:02 - 2014 Jun 29 Checking ...
2
votes
0answers
64 views

How to merge MP4 files with different bitrates?

I want to merge two or three MP4 videos with MPEG-4 AVC video codec and MP3 (sometimes MP3 Surround) audio codecs. Both audio and video can have different bitrate. If it will be possible, without ...
0
votes
1answer
32 views

Using a screen capture program (ffmpeg with uscreencapture in my case) to record a Flash video playing on screen

I'm trying to capture my desktop, precisely a full screen video - think "YouTube video on full screen situation", or if you'd record a programme on iPlayer (or any other content deliverer) - what ...
1
vote
0answers
18 views

How can I select the most “steady” frames from a video with ffmpeg, where less motion occurs?

I would like to use ffmpeg to select out frames from a video to make a preview picture. In the past I selected out frames manually: I extracted 1000 frames at equidistant time and then I picked out ...
0
votes
1answer
33 views

Fast-Play 1 Hr. Video (with Audio stream) in 2 min

For a Research Project in brain and cognition we need to show the subjects 1Hr. videos in 2 mins. I understand there is a function in most media players out there to speed up the video. But I'm not ...
0
votes
0answers
33 views

Converting RAW Blackmagic Intensity Card frames

I am trying to convert raw video frames that I have captured using a Blackmagic Design Intensity card. The output frames are of the format: YCbCr 4:2:2 packed 8 Bit UYVY Abekas How can I convert ...
1
vote
1answer
28 views

Is it possible to autocrop black borders of a video with ffmpeg?

I think it has a "blackness" video filter, which can determine if a picture sequence is black. Maybe it also has a filter to determine crop values automatically to remove black borders form edges of a ...
0
votes
1answer
25 views

How to replace part of audio in a video using the command line?

Part of a recorded audio contains sensitive information. I want to remove that information while keeping the video and rest of the audio intact. Ideally using command line and being able to exactly ...
1
vote
0answers
25 views

How to check .mp4 file is corrupted or not.

I am recording two different videos in the .mp4 format using ffmpeg command and after that combining them. But sometimes one of the video is get corrupted because of that it will affecting on the ...
0
votes
0answers
20 views

Ffmpeg : I-Frame detection oddity on a single channel input

Summary: When trying to abstract out I-Frames from various positions in videos with slight time offsets, identical results were produced between different offsets. Through experimentation a workaround ...
0
votes
1answer
35 views

MPEG-TS playback with MPlayer: current timestamp and duration are wrong

Recently I have been playing a lot of MPEG-TS videos on MPlayer. The sources of the videos are unclear to me, so I have no idea of with which software these TS videos were created. The problem is ...
0
votes
0answers
51 views

FFmpeg unable to find a suitable output format when run from script

I'm trying to write bash script, which I can use to start encode of my video for web player, and also log to file when it started / finished. It looks like this: #!/bin/bash ...
2
votes
1answer
36 views

Automated conversion of .dvdmedia(VOBs) to format Plex can handle on a Mac?

I'm super impressed by Plex, and I'd like to convert all my old dvdmedia files into a format that it can understand. I have quite a few of them (the product of a dvd library being ripped to work with ...
0
votes
0answers
43 views

Concatenate video files with mute audio

I am using FFmpeg commands to concatenate five video files. One of the files has only video, no audio. When I concatenate the files, the video is stitched properly but I have a problem with audio: the ...
0
votes
0answers
43 views

Motion - debian 7.5 cannot record movie with ffmpeg

Description I'm running the motion 3.2.12 standard package on debian 75 (wheezy). Motions are detected, events triggered and pictures save in the correct folder as awaited. On the other side, motion ...
0
votes
0answers
10 views

No audio with :start-time

Using the :start-time (or --start-time) option with VLC on the command line usually causes no audio to be played. There seem to be "sweet spots" where it does -- e.g. vlc foo.mkv :start-time=601 ...
1
vote
0answers
17 views

Upscale any video-size while concatting multiple videos in ffmpeg

I already asked this question at Stack-Overflow, but they said I should post it here, so here it is: I looked for 2 hours through the documentation, but I couldn't figure it out. I currently write a ...
0
votes
0answers
18 views

Change Audio title from English to Sinhalese using ffmpeg

I insert an extra Sound track in my video file and it works well. ffmpeg -i news.mov -i news.wav -map 0:0 -map 0:1 -map 1:0 -pass 1 -vcodec libx264 -preset fast -b 512k -minrate 512k -maxrate 512k ...
0
votes
0answers
41 views

DEBIAN / MOTION / FFMPEG not compliant - can't get up to date versions working together

Goals I'm running debian 7.5 (wheezy). In a previous post I described the problem I faced with motion 3.2.12 usage (Avcodec opening fails). To move forward I want to compile the same motion version ...
0
votes
1answer
88 views

How to batch multiplex audio and video track files with ffmpeg

I think that everybody knows that problem about downloading 480p & 1080p videos from Youtube, and that the only way available for many Download programs is to download the Video and Audio Tracks ...
0
votes
1answer
71 views

FFmpeg add multiple audio files to video at specific points

I have two audio files, each about 3 minutes long. I want to take the first 10 seconds of each file and add them each to a video file at specific points - 0 seconds and 10 seconds. So the resulting ...
0
votes
0answers
43 views

VIDEO Streaming - How to output the video timestamp?

I would like to backup an ASF video stream with the time stamp (I mean the original recording date/time) on the output stream ? Usage I convert / store my video using the mkv format (Matroska) ...
0
votes
1answer
26 views

Sync two movies, frame-accurate?

Given video recordings made on two (or more) cameras such as gopros or keychain cameras, and given a "clapperboard" event in each recording, what is a simple way to trim each recording to start with ...
0
votes
1answer
84 views

Receiving FFMPEG error -22 when piping data to stdout

I am attempting to use FFMPEG to transcode avi files to mp4 and pipe the data to stdout using the following command (technically through NodeJS, but I receive the same error when executing the ...
0
votes
0answers
98 views

ffmpeg - complex filter putting 2 videos side by side results in audio out of sync

We have 2 videos. One is a professionally produced video by an artist that performs a song stopping in certain parts to let the user sing. The second video is a stream that is recorded while the user ...
1
vote
1answer
84 views

using ffmpeg to convert mxf to yuv

I am trying to convert mxf file to yuv using ffmpeg. I gave the following command : ffmpeg.exe -i eldorado_really_cutdown.mxf output.yuv but I am getting some errors. This is the output I am getting ...
-1
votes
1answer
40 views

Play FFMPEG while downloading

My internet connection is too slow for streaming videos. However, i found a way to download m3u8 files, which are used for streaming media, and I use ffmpeg to download and transcode the video via a ...
1
vote
1answer
60 views

Apply fadeout effect to video at multiple places

I have a video of 12 seconds, frame rate is 30 frames per second. I want to apply fade out effect to video on multiple places, for example from second 3rd to 4th and from second 7th to 8th. Have a ...
0
votes
0answers
20 views

Playback multiple (three) videos, with different starting point, side by side synchronized?

This question is similar to, but not the same as: How to play multiple videos side-by-side synchronized? Difference is that videos I try to playback has different/offset starting point. The answers ...
1
vote
0answers
85 views

Play two files in VLC dummy and give sout parameters to both of them

I want to add multiple files to VLC's web interface. And the commands below do exactly that. Two files are added to the VLC's web interface's playlist. But as you can see, that's not all I wanted - ...
0
votes
0answers
46 views

Audio and video streams merging

I receive two streams. One of them is audio and the second is video. After that i mix them and send like "rtmp" stream. But the problem is video stream falls every 3-4 minutes and i need that "ffmpeg" ...
0
votes
1answer
45 views

FFmpeg map optional (audio) stream

I use this command to produce a file scaled and with an overlay image: ffmpeg -i input.* -i overlay.png -filter_complex "[0:v]...; ...[1:v]overlay=... ... [resultingvideo]" -map "[resultingvideo]" ...
2
votes
1answer
40 views

Is is possible to join H.264 streams encoded with different parameters?

The following commands generate two H.264 video clips, 10 seconds each, with different preset parameters (veryslow vs veryfast), and join them into one single MP4 container. $ ffmpeg -loglevel quiet ...
1
vote
0answers
95 views

Packets are not in the proper order with respect to DTS when using libx264 for video

I'm trying to use the following command to transcode one stream to a different format and send it over to RTMP server for live streaming. This is the command I am using: ffmpeg -f mxg -i ...
0
votes
0answers
168 views

Streaming FLV with H.264 and AAC

I'm trying to turn Mobotix IP Camera MxPEG based stream into a FLV stream that uses H.264 for video and AAC for audio, to be used from web-browser context with a flash based player. I've been trying ...
0
votes
1answer
37 views

How to control keyframe generation in ffmpeg

I use ffmpeg to transcode an FLV file that only has one GOP, that is, only the first frame is an I-frame. The problem is that my output file has more than one I-frame, but I need it to only have one ...
1
vote
0answers
219 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 ...
0
votes
1answer
71 views

Speed up video with FFmpeg with low I-frame distance

I got a video with 60 fps and h264 encoded (.mp4), audio layer is removed. Now I want to speed up the video 4x faster with FFmpeg, but I would like to have a very low I-frame distance to be able to ...
0
votes
1answer
73 views

Creating video with multiple audios and one still image for YouTube

I want to create many videos with multiple audio streams and one single picture. For example I have song1.mp3 song2.mp3 song3.mp3 and one single picture. What I need to do is to create many ...
0
votes
1answer
159 views

Rip CD/DVD with ffmpeg

Is this possible with ffmpeg? Do you have any links that explain how to do this? I have searched with Google but had not many results. I just want to be able to convert a CD or DVD to MP3 audio ...
8
votes
1answer
129 views

Cannot concatenate videos ffmpeg

I have a bitmap that I would like to concatenate to the front of many videos as a sort of title screen or disclaimer screen. I try to turn it into a video with the same attributes as the rest of the ...
1
vote
0answers
123 views

Split video into equal file size parts with ffmpeg

i am trying to split a video file into equal file size parts with ffmpeg. At first i get the file size of the original and divide it with the desired number of parts to get the file part's file size. ...
1
vote
0answers
148 views

stream byte arrays to a video using ffmpeg

This is what I am trying to do: I receive jpegs from an IP camera. If motion is detected I want to upload the jpeg still shot to my server. To save on bandwidth I save each jpeg to a file on my ...
1
vote
0answers
79 views

I got a green overlay in my video when using multiply blend mode in ffmpeg

I´m trying to blend two videos with the multiply blend mode. But I got a green overlay in the resulting video. This is a image where are one frame of each input video and one frame of the resulting ...