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

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1answer
47 views

batch video size reduction in nested folders maintaining their source folders as destination

I have a folder containing nested folders which hold many video files with different formats. I want to reduce their size with HandBrake and maintain properties of the original videos (such as frame ...
1
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1answer
48 views

incompatible pixel format 'yuv420p10le' for codec libx265

I am using ffmpeg -probesize 2G -i input.ts -c:v libx265 -pix_fmt yuv420p10le -x265-params fps=50 -c:a libfdk_aac -t 00:00:05 /output.ts I receive the error incompatible pixel format ...
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2answers
6k views

MP4 video from Android phone can't be played in Windows

I took a video on my Samsung Galaxy S2 (Android), it's about 3GB and it can be played on the phone. But after transferring it to the PC is does not play when opened with VLC, QuickTime, Windows Media ...
5
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1answer
11k views

How to cut at exact frames using ffmpeg?

I'm trying to use ffmpeg to cut video files at precise times. The ffmpeg help shows an option -timecode_frame_start to specify the starting frame but I am unable to get this command to work. The ...
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2answers
49 views

Remux/encode/convert MPG into MP4

I understand that it is impossible to edit metadata of MPG files (i.e. createdate), so I am looking for another way to "upgrade" my MPGs into a newer file format (preferred are formats that work both ...
0
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1answer
38 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
35 views

How can I make a video “seekable” using ffmpeg when played in VLC player?

I have a .mkv video with the following properties: Input #0, matroska,webm, from 'DEMO.mkv': Metadata: ENCODER : Lavf56.4.101 Duration: 00:00:56.37, start: 2.333000, bitrate: 2032 ...
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1answer
394 views

FFmpeg x264 Encode Settings

My new Canon Vixia HF G30 video camera has an option to encode directly to 35 Mbit/sec Mp4 at 1080p60 and it does a nice job. I primarily use it to record my daughter's high school basketball games. ...
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2answers
651 views

FAST conversion from MTS to MP4 (OS X) [closed]

I have tried using Handbrake but it's quite slow (4fps!). IMovie 08 is faster but requires the camera to be plugged in (i.e., it can't work with the MTS directly). Are there are any better (even pay) ...
0
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1answer
2k views

Sound out of sync after merging multiple mp4 files with Avidemux

I am trying to join (merge) two or more .mp4 files together, without re-encoding. Here is what I did: Started Avidemux 2.5.5. With File->Open, selected Input1.mp4. I received this message - "H.264 ...
1
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1answer
46 views

video size reduction by grayscaling it

When we convert a video into grayscale, all of its 3 colors (RGB) in a pixel are assigned the same number (instead of 3 different numbers). So theoretically we must have reduction in size almost by ...
2
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1answer
2k views

ffmpeg - concatenating two MP4 files results in bad output file

I generated two MP4 files - a five-second intro file, which is created by the script below, and the main video (about one minute long) is created by screen-cast-omatic, both in MP4 format. When I ...
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2answers
251 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 ...
3
votes
2answers
5k views

ffmpeg: Could not find codec parameters for stream 0 (Video: h264) unspecified size

I try to convert a video from .raw to .mp4. For this reason I did download, build and install both x264 and ffmpeg. However, command: ffmpeg -f h264 -i output.raw -vcodec copy output.mp4 fails with ...
2
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0answers
53 views

FFmpeg cuts off ~50ms when I extract+convert audio from video

I want to extract the audio stream from many .MOV files with ffmpeg. The goal is to have output files with small file size and perfectly equal sound to the input file. Currently I'm using this ...
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4answers
567 views

How to convert flv video to 3gp video?

How to convert .flv video format to .3gp for use on an Android device using a desktop computer?
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1answer
79 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 ...
4
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2answers
7k views

Why is converting WMV to MP4 so slow?

I am trying to convert a video from WMV to MP4 with FFmpeg but it takes couple of hours. If I try to convert it to AVI it only takes about 10-15 minutes. ffmpeg version ffmpeg version ...
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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
votes
0answers
45 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
54 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
39 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, ...
12
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1answer
23k views

How to extract subtitles from MP4 and MKV movies

I'm trying to extract subtitles from MP4 and MKV movies. I'm using mp4box (on OS X) but cannot figure out how it works. Any hints?
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1answer
2k views

What file extensions does ffmpeg support?

I'm trying to extract a subtitle from a Blu-ray disc and it is an hdmv_pgs_subtitle. So I try ffmpeg -i file.m2ts -map 0:3 -scodec copy rip3/test.sub and get Could not write header for output ...
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0answers
40 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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4answers
3k views

How to hardcode subtitles into an AVI without loss of quality

I am using a program to hardcode subs into an AVI file. The problem is that is recompresses the video using a codec. I don't see why this is necessary and causes a noticeable loss of quality. Is there ...
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0answers
47 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
votes
1answer
525 views

ffmpeg concat output not playing in windows media player

I have a series of short (<3sec) mp4 videos (some with audio, some with no audio) that play fine in all clients. 15 fps, AAC audio. When I use ffmpeg concat, the resulting file plays fine in vlc, ...
1
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2answers
7k views

How do you convert AVI to FLV using Avidemux in Windows?

I've tried the tutorial but there seems to be a specific file that has to be associated with Avidemux. I'm using version 2.5.1 (r5249)
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3answers
3k views

Batch convert videos from MPG to AVI

I have a few hundred short MPEG files (each ~10 seconds) that I need to batch convert to AVI. What would be the best way to do this? I've tried using WinFF but the quality was very subpar.
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
93 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 ...
1
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5answers
120 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 ...
16
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2answers
65k views

Handbrake settings to convert MKV to MP4 while retaining the original quality

I have a ton of MKV files I need to convert to MP4 and my chosen software is Handbrake. I'm stuck on which settings would be best for the conversion. I want to retain full quality. Do I just convert ...
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0answers
545 views

Split video into equal file size parts with ffmpeg [duplicate]

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. ...
2
votes
1answer
444 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 ...
2
votes
1answer
85 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 ...
1
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1answer
146 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
vote
2answers
198 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 ...
1
vote
1answer
128 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
votes
0answers
220 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
vote
1answer
697 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 ...
3
votes
1answer
12k views

How to convert Webex' WRF to any other video format?

I've recorded a Webex WRF screencast and I'd like to convert it to WMV or AVI or something. The Webex Editor keeps saying it needs Windows Media Player 9. Is there any other way to convert WRF?
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2answers
269 views

Input and output files for mencoder

What file types does mencoder accept for input, and what kind of output files can it make besides AVI files?
0
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1answer
289 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 ...
5
votes
2answers
10k views

Converting AVI encoded file with an IMM5 codec

As part of a legal matter, I received a copy of a security video encoded using what appears to be an 'IMM5' codec, apparently often used by police. I also received a copy of 'BackupPlayer', which can ...
2
votes
1answer
21k views

Import MKV, AVI, etc. video files to iTunes 11 without conversion

Recently I had the idea that it would be good to organize all of my movies and TV shows into one central application (kind of an inventory), and from the research I have conducted, I was able to ...
2
votes
1answer
251 views

Is there a good program to generate gifs from a wmv file? [closed]

I want to generate gif files from wmv movie files. I am hoping that it can generate from a given section in the movie file with options of how many images are in the gif. Can you help me? This is for ...
2
votes
1answer
3k views

Can MP4s be 480p?

If I'm not mistaken, as a container format, MP4 videos should be able to contain videos that are 480p. Also, from what I am able to find, the MPEG-4 video format does not have a limitation that ...
0
votes
1answer
194 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 ...