The video-conversion tag covers software & formats related to converting videos from one format or container to the other.

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23 views

Downloaded video from youtube with Firefox and Downloadhelper is rotated and/or in worse quality than original

I try to download videos from youtube to my hard disk using Firefox 33.1 and the DownloadHelper 4.9.24 plugin. (I tried it as well on Windows XP and on MacOS X 10.6. Let's take the following video as ...
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1answer
19 views

Swapping index of an MP4 file with FFMpeg

I run a web application which provides a few videos on it. Those videos are being displayed with a flash-video-player. Unfortunately, the index of those container-files is at the end of the file, so ...
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0answers
20 views

What is a good alternative to Skype for interoffice “window” video chat? [closed]

We're looking for a free or low cost alternative to Skype. We have a small office on the west coast with the main office on the east coast. We're using a laptop on each side with a full-screen Skype ...
0
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0answers
13 views

FFMPEG conversion from webm to mp4 [duplicate]

I use the following command for converting from a webm to mp4. fmpeg -i input_file.webm -c:a copy output_file.mp4 It is converting very slowly. It takes as much time as the video. Can anyone ...
2
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0answers
15 views

F4V to MP4 via FFMPEG (Bitrate viewer)

I have a several F4V that I've captured using Flash media Live Encoder and I need to convert them to MP4s. As I understand F4V are fairly identical to the MP4 format so we used "copy" for the video ...
0
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1answer
21 views

downsample mp4 in windows

I have an hd camera that records huge mp4 files in full hd. I want to publish the videos to the web, but the files are too big. How do I downsample the mp4 files so that they are 600 pixels wide and ...
0
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1answer
21 views

convert avi file to mp4 in linux

I have a bunch of avi files. I would like to convert them to mp4 format while retaining their small file size. I am using linux. Can someone please show step by step how to make the conversion, ...
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0answers
20 views

Resume transcoding a video with ffmpeg

I have a node server that uses child-process to use ffmpeg to convert a video to mp4. However if the server crashes while transcoding, then I'd like to resume transcoding the file (similar to -C with ...
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0answers
30 views

How to set profile compatibility of an fMP4 using ffmpeg?

I'm using ffmpeg to generate a fragmented mp4 stream that will be consumed by an HTML5 player. I think I have a correctly formatted mp4 stream of data with an empty moov at the start and a series of ...
0
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0answers
27 views

audio error when concatenating clips using ffmpeg [duplicate]

I'm trying to do the following: cut an input video into segments and convert these segments in the same step concatenate the transcoded segments back together in an output file The steps that I'm ...
0
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1answer
64 views

avconv gives empty output

I tried converting a video file to a desired format using FFmpeg through WinFF. I have specific demands about some aspects of the output file, while other aspects should be set in a way which will ...
2
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1answer
59 views

ffmpeg - h264 - multiple resolutions without scaling

I have an MP4 which contains an H264/AVC stream, which contains multiple resolutions. Below is the output of mediainfo on this file: General Complete name : known.mp4 ...
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2answers
80 views

How to make an MPEG2 video file with the highest quality possible using FFMPEG?

I have got a WMV (v9 (WMV3), 960x720, 30.000030 fps, planar 4:2:0 YUV, produced by PowerPoint 2010) file and need to convert it to MPEG2 - the only format my TVset can read from an USB flash drive (I ...
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1answer
103 views

Merging 2 videos with overlay causes async problems

I'm using following ffmpeg command to merge 2 MKV inputs with the overlay parameter. The result should be one output with input1 on top of input2. In the process, the output should be webm. Both ...
1
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1answer
68 views

Recursively convert mkv to mp4 with avconv

I need to create a script that can convert all .mkv files to .mp4 in a starting directory and all sub-directories under it. I've been able to convert files one at a time by using: avconv -i ...
3
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0answers
132 views

Why does avconv change the fps when deinterlacing?

I have a .MTS 1080i of 25fps (mediainfo) that I deinterlaced with avconv -i input.MTS -vf yadif -c:a copy output.mp4. As the wiki says, the default value for yadif is 0 which "outputs one frame for ...
1
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1answer
280 views

What H.264/H.265 video compression parameters provide DVD-equivalent quality with better compression?

I have got a box of DVD video disks that I seek to get rid of while I'd like to keep the videos by converting them into MP4 files to store them on a hard drive. Considering superiority of the modern ...
0
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1answer
128 views

Convert mkv with AVC High@L4.0 to mp4 with ACV High@L4.1 or higher

I am trying to convert some mkv files I have to mp4 so that they can be played to my chromecast. Here is the information about the video files. mkv file information As you can see that the video ...
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0answers
16 views

How to mix videos created by DosBox into a single video?

When recording gameplay videos. DosBox recording a separate video for each graphics mode. For example Descent switches graphics mode for each time you visit the auto map. So now I have 46 videos ...
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5answers
55 views

How to convert from .avi container to .mp4

I have an .avi file containing the following streams: Stream #0.0: Video: mpeg4 (Advanced Simple Profile), yuv420p, 608x256 [PAR 1:1 DAR 19:8], 23.98 tbn, 23.98 tbc Stream #0.1: Audio: mp3, 48000 ...
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0answers
16 views

What other options are available similar to Inmatrix's Zoom Player's Scene Cut Editor?

Zoom Player has a function that lets you "edit" a movie without changing it using their Scene Cut Editor. You can tell it start/stop times (easily, through a GUI interface) and it then "skips" or ...
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0answers
39 views

Prevent ffmpg from concealing errors during conversion

I'm experimenting with using Audacity to create glitch videos (datamosh and databend are synonyms). So, I create an AVI, pull it into Audacity as raw data, manipulate the stream, and the save it back ...
2
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1answer
109 views

How can I backup a movie DVD?

I'm backing up my DVD movie collection in a portable HDD, both to have a better access to them, and preserve it over time (I've experienced some problems when reading some of them, luckily after ...
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0answers
147 views

I get wrong aspect ratio for images and video converted using ffmpeg

I am trying to convert some old movie files to images (and later to reencode as h.264). The problem is that the resulting images are stretched vertically. Here is the ffmpeg command: ffmpeg -i ...
0
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1answer
109 views

FFMPEG Windows Generate 360p Video conversion failed

Input : "C:/server/ffmpeg/bin/ffmpeg.exe" -y -i C:\server\websites\ps\public_www/media/com_hwdmediashare/files/50/4f/37/4185216cb9bb234fd47ee43bf2122e4f.avi -strict experimental -acodec aac -ac 2 -ab ...
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0answers
117 views

Creating video from set of images on windows with java language

I am stuck making a video from set of images using ffmpeg on Windows. For a single image it is converting into mp4 but for a set of images it failed, I have converted single % to double % with double ...
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0answers
88 views

Merging audio and video files of different length using mp4box

I have to merge video and audio file together. Currently I am using this command mp4box -flat -add <video> -add <audio> <outputfile>.mp4 But the problem is, if the video is of say ...
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1answer
175 views

Edit “Media Duration” metadata on MP4 file

I have some video files which were converted to MP4, but not quite correctly. When I examine one with exiftool, I see these metadata values: Duration : 0:11:23 Track Duration ...
2
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1answer
306 views

FFmpeg “ass” filter not working

I'm haveing a bit of a problem when trying to use FFmpeg. I've mostly been using it to extract clips from videos and such. However, I've been trying to get some subtitles embedded (hardsubs) into the ...
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0answers
343 views

FFmpeg: m2ts -> MKV/AVI/MP4 w/ tri-audio and subtitles

I have a 1080p m2ts file with three audio tracks and a subtitle track. I'd like to convert it to a 720p MKV, or really any format at all, while retaining all three audio tracks along with the subtitle ...
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205 views

HDMI “Video Over IP” hardware

I am interested in using my wireless home network to live-stream video sources such as DVDs, my Raspberry Pi or anything else that is connected to my home receiver. I would like to then send this ...
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0answers
89 views

How to concatenate MP4 files without losing embedded subtitle or audio tracks?

I have two MP4 files (mediainfo below), one is a short intro scene, and the other is the primary feature. Now, the primary video contains several audio tracks and embedded subtitles. I want to simply ...
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0answers
44 views

ffmpeg bitrate variating without reason

I got a mp4 video. I just want to split it in 4GB file parts using ffmpeg (to make it writeable on FAT32). C:\ffmpeg\ffmpeg.exe -i "%NAME%.mp4" -n -t %LENGTH% -codec copy "%NAME%_1.mp4" ...
0
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1answer
224 views

Can't convert FLV to MP4 for iPhone with ffmpeg

I'm having issues with converting an FLV to an MP4 that will play on iPhone/iPad via Video-js. It seems that the ffmpeg commands are not converting properly. Here's one of the original commands ...
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0answers
28 views

Transcoding Video to QuickTime Animation (RLE)

I need to transcode video created using the Camstudio Lossless Codec into the QuickTime RLE format in order to get it to work with some other software. What methods can I use to convert the video? I ...
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0answers
89 views

ffmpeg with a streaming input change channels order and indices on different execution

We're using ffmpeg to take a mpts stream by 3rd party and encode it to a webm file. Now Every time I've call the ffmpeg command I get different map of channels for it. For example: Input #0, mpegts, ...
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0answers
273 views

FFmpeg/avidemux: fix packed B-frames

I'm transcoding some of my old mpeg4 videos (in avi containers) to h.264 with FFmpeg. Basically ffmpeg -i input.avi -c:v libx264 [x264 settings] -c:a libfdk_aac [aac settings] output.mp4 When doing ...
0
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1answer
226 views

FFMPEG - Convert a video to a timelapse

I'm using ffmpeg in flash builder (Action script 3) to convert a video to a time lapse of the video. I've worked out how to use setpts to do this, but the resulting output file is the same length as ...
2
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3answers
3k views

How to convert a .m4v video/audio file to .mp4 on Windows 7?

Does Windows- 7 already have something that would convert .m4v to .mp4? If not, how would I do that?
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0answers
101 views

Is there a way round the video call block on shoretel when within Xenapp

Is there a way round the video call block on shoretel when within Xenapp As far as I know, there is no way to make a video chat session on ShoreTel when I am within Citrix. I can make the video ...
0
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1answer
429 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 ...
0
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1answer
117 views

FFmpeg encoding part of the video with subtitles

encode part of a file and at the same time add the subtitles for that part. I am using: ffmpeg -ss 00:02:00 -t 00:00:30 -i "path/to/input" -c:v libvpx -crf 5 -b:v 3M -c:a libvorbis -vf ...
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0answers
162 views

Handbrake Not Recognizing Audio Track

I'm working on re-encoding some MKVs into Ipod format so my brother can watch movies on vacation, and I'm running into a problem with Handbrake I've never seen before. I have a MKV of a Blu-Ray I ...
0
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1answer
251 views

Missing reference frame, slice header decode error

I split this (http://www.auby.no/files/video_tests/h264_720p_mp_3.1_3mbps_aac_shrinkage.mp4) video using mp4box command "MP4Box -split 1 shrinking.mp4" into slices of 1 second each. I have following ...
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0answers
93 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 ...
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0answers
520 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 ...
0
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1answer
779 views

Increasing size of subtitle that’s “softly” embedded within mkv

I have some MKV files that have Advanced SubStation Alpha (ASS) subtitles in them. The subtitles are “toggleable”, so they probably aren’t “burned in” then. My goal is to—somehow—increase the font ...
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0answers
51 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 ...
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1answer
268 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 ...
2
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1answer
80 views

pdf to video conversion

I need to convert all (some 300GBs) of pdfs to avi (or some other video format). I'll explain what I mean; for a certain research project I need to flash each page of pdf for (say 1s.). I know this ...