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

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avconv - Error for scale filter

I'm trying to rescale a video via avconv with the following command: /usr/bin/avconv -i /home/user/video.mp4 -filter:v crop=960:720:160:0,scale=h=498:w=-1 -an -y -frames:v 1 media/image.png But I'm ...
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14 views

Why When I transfer video from my canon camera to my computer the quality is bad?

I have a canon EOS 700d and I record HD 1080p video at 25fps on it but when I transfer it to my computer via usb cable the quality is terrible. I use Sony movie studio platinum to edit my videos. When ...
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1answer
15 views

How do I transcode the audio to aac in this ffmpeg command

I usually use this command to convert my mkv to mp4 while hardcoding the subtitles (for playing on my tv) ffmpeg -i old_video.mkv -vf subtitles=old_video.mkv -acodec copy new_video.mp4 There is one ...
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1answer
31 views

What is the correct command line to convert a MKV 10b to MKV 8b with identical quality?

I want to convert a MKV 10b to MKV 8b, with identical quality of sound and video. I uses the following command line: ffmpeg -i -c my_file.mkv: libx264 v -profile -crf 18 -PRESET medium high -level ...
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25 views

Cut and Compress 4K Video?

I have a 20 second video which size in 4K which size is 125 MB. It is only about a defective electronic component so accuracy is not important. I want it much smaller. I have these options in VLC ...
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1answer
32 views

Rotate AVI video by 90 degree

I used to apply this command to transcode videos of my mobile phone to AVI: ffmpeg -i Input.mov -s 640x360 -sameq -vcodec msmpeg4v2 -acodec libmp3lame Output.avi Now I'd like to rotate some videos ...
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19 views

Ffmpeg, error adding mp3 audio track to mp4

I have an mp4 which I created by stitching together 4 images and I need to add audio to it from an mp3. Per this question: How to apply audio track to a mute h264/mp4-video losslessly? I used: " -i ...
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1answer
27 views

Convert m2ts to (if possible) lossless format for m2ts to save space?

I have hundreds of m2ts formatted video files resulting from legal recordings from TV. Now I would like to keep them, but they are huge. Is there a format I can convert them to which is preferably ...
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24 views

How to set double fps for tbc option of video

I need to set tbc option for output video. For example, input video has 25 fps with 50 tbc and my encoded video has 25fps with 25 tbc. I used settb and video_track_timescale but these options did not ...
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1answer
18 views

What type of encoding with Bandicam?

I using Bandicam for screen recording file is so small. What type of encoding? I want to edit product from Bandicam and save, after that file is growing 8x from 10MB to 85MB. 10 MB including audio ...
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36 views

VLC media player select audio track for conversion

When using VLC media player to convert a video with multiple audio tracks into another format (that may support only one audio track) using only one audio track, how do I select the audio track that ...
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1answer
37 views

How can I use a PC's monitor output as an input in anoter PC?

I would like to make some real time video mixing setup where there will be multiple PCs creating CGI/graphic output and many cameras creating real life output that should be connected to a mixer PC ...
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24 views

Which audio tracks should a mp4 file have?

I am converting some of my DVDs to mp4 files with handbrake for watching them on my computer and am a newbie to video conversion. I read a bit about the topic on the internet, but am confused about ...
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76 views

Corrupted Data after replacing disk in Windows 10 Storage Space

I have a Windows 10 upgraded Storage Pool with 5 drives (Parity, thinly provisioned). 'Upgraded' means that this Storage Space supports rebalancing/optimizing (and this was a Windows 8 machine ...
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1answer
40 views

QuickTime can't play mp4 generated by ffmpeg without converting first

I've created a .mkv file from a DVD using MakeMKV that I've then converted to .mp4 using ffmpeg: ffmpeg -i title00.mkv -c copy -c:s copy output.mp4 Now when I try opening the .mp4 file using ...
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1answer
32 views

How to keep audio when converting to MPG with FFMPEG

I'm converting a video to MPG and the output has NO audio. I know I should specify the audio stream but can't find how in the documentation. I need MPEG as output container because I stream my videos ...
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17 views

FFmpeg dropping frames of second input file while using concat

I am currently trying to take a video file and split it into pieces that can then be encoded and pieced back together later. As a test I am trying to split a video into two pieces and then stitching ...
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31 views

ffmpeg truncates output files without return an explicit error

I am transcoding a file with a duration of 1:42:92 using an ffmpeg pipeline. The output file is truncated (its duration is 30 seconds) without any warning about the output file is shorter than the ...
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28 views

A fast way to convert multiple videos sound from AC3 to AAC without converting video

Is there a way to convert alot of video files from AC3 sound to AAC? I don't want to convert video iteself, video is okay, only the sound. I have alot of videos encoded with H.264 or mpeg4(xvid) and ...
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2answers
31 views

How to resolve the issue of flash video downloader in chrome?

I am trying to download a vimeo video from a web page but the issue is that my flash video downloader works for some videos and for other videos ,it is disabled so how to resolve this,I have tried ...
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1answer
83 views

ffmpeg mpeg2 to MP4 H264 produces horizontal lines artifacts in motion scenes

My video input is mpeg2 video file as follows: Video: MPEG2 Video 720x576 (4:3) 25fps [V: mpeg2 main, yuv420p, 720x576] Audio: MPEG Audio 48000Hz stereo 224kbps [A: mp2, 48000 Hz, stereo, 224 kb/s] ...
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1answer
98 views

Decoding x265 HEVC more efficiently

I have an old Extreme i7 first generation with 12 threads running a PLEX server. LAtely I've started adding more files compiled using x265 over x264. I noticed that when the system runs a x265 file, ...
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1answer
51 views

Extracting audio from a video file using VLC

I am trying to extract audio from a given .mp4 file to .mp3 format. In Media>>Convert/Save, I have made setting as showed in images attached. Now my problem is: I only get *.ts format as output and ...
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2answers
39 views

How to include video (video file, not online video!) in microsoft word?

How can I include video (I mean video file that is on my hdd that will be included inside word file, not online video!) in Microsoft Word 2013/2016? I need to include it as a video that can be played ...
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1answer
20 views

Mencoder mixes 2 different subtitles when “burning-in” an srt subtitle file

I'm using mencoder (version 1.1-4.8 on Ubuntu 14.04) to encode various avi, mp4 and mkv files into smaller .avi files with srt subtitles "burned in" (to view in a portable dvd player that has very ...
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1answer
166 views

ffmpeg settings for VHS mpeg2/mp2 to H264/MP4 VBR conversion and reducing file size

My input is as follows: Input #0, mpeg, from 'D:\Videos\2015.mpg': Duration: 01:49:08.74, start: 0.220000, bitrate: 4940 kb/s Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, bt470bg), ...
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27 views

How to do this ffmpeg command correctly?

I'm new to ffmpeg. I have an input file (input.mp4) I want the video in its first 20 seconds (00:00:00.0=>00:00:20.0) to be flipped horizontally and the last 20 seconds (00:00:20.0=>00:00:40.0) to be ...
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20 views

How to export mp4 from Sony camcorder?

I have a Sony HDR-HC5 camcorder, and I'm trying to save a video to a cassette, and then connect it to my PC and save the video as an .mp4 file. Here is what I do: I shoot the video Connect it to PC ...
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1answer
21 views

Convert .mp4 video file for playback on camcorder

I have a .mp4 file with MPEG4 for video and MP3 for audio that I need to convert to make my camcorder (a cheap one I got off eBay) play it back, but the only problem is that it doesn't accept anything ...
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73 views

ffmpeg video cutting error: out of sync audio

I want to be able to upload a video to a server and cut it if I want to. So, first I encode it: ffmpeg -i input.mp4 -vcodec h264 -acodec aac -strict -2 -preset slow output.mp4 Then I try to cut ...
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1answer
17 views

Concatenation of files with different codecs attributes?

It shows in the ffmpeg documentation the following code example: ffmpeg -i input1.mp4 -i input2.webm \ -filter_complex "[0:v:0] [0:a:0] [1:v:0] [1:a:0] concat=n=2:v=1:a=1 [v] [a]" \ -map "[v]" -map ...
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31 views

(FFMpeg) Split the video by size after conversion

I have a 5,000MB long video in .mp4 format. I would like to split the video into segments by the size. For example, I set the size to 1,024,000KB, or simply 1,024MB, because I want it to be accurate. ...
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83 views

Split MP4 video with chapters into seperate files

I´ve got a few videos which I already converted (with HandBrake) into m4v (ready for iOS devices - sources are deleted) each 2,5 hours long with chapter marks and I want to cut them into seperate ...
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96 views

convert live hls stream into rtmp stream

one of our partner is exposing a live HLS stream. I want to know if there is any tool that can take hls live stream as input and convert it to rtmp live stream and ideally push that output to some ...
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24 views

Writing ffmpeg result to pipe (e.g. stdout) produce different file than when writing to file

I convert video to another format using ffmpeg: ffmppeg -i somefile.*** -f avi somefile.avi and everything works fine. But i need to write output to pipe, so (simplified example): ffmpeg -i ...
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180 views

How to correctly use x265 lossless parameter with avconv

x265 has a lossless mode which is used for ultra-high bitrates with zero loss of quality. I tried using this mode with avconv as follows: avconv -i input.mp4 -c:v libx265 -x265-params lossless -c:a ...
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35 views

Handbrake: Best IPhone playable Settings for a 2:1 Aspect Ratio Video

Original Video Settings (360 Panoramic video): H264 Bitrate: 15000 kbps FPS: 48 Resolution 3820 x 1910 My current settings in handbrake are: Apple TV3 Preset Width: 1920 Height: none Anamorphic: ...
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1answer
192 views

how to convert a video to a MOV file with h264 yuvj420p and pcm u8

I want to convert some videos to be playable on a Canon digital camera. The videos from the Canon PowerShot camera have the following specifications: Video: h264 (Constrained Baseline) (avc1 / ...
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1answer
35 views

How to do a variable time scale?

I have a video where I would like to change the time scale of a video based on ratios read in from a file. I have figured out that to double the speed for an entire video I could use the setpts ...
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1answer
170 views

Handbrake doesn't keep Hi10p and HEVC after conversion

Handbrake is a great tool for me to convert media files. I noticed that my original video file (mkv, 1080p, Hi10p, HEVC) lose some quality after conversion (mp4, 1080p, 8-bit, AVC). What I've ...
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76 views

FFMPEG: Convert while file is being uploaded (an incomplete file)

I am designing a media upload function using HTML5. My design looks like this at the moment: User selects a file for upload FileApi (JS) reads this file chunk by chunk and uploads it to the server ...
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2answers
111 views

Best Practice/suggestions for capturing/encoding/formatting VHS video?

As a personal project for my family I recently purchased myself a Composite-USB converter in order to preserve many of the family's old home movies on VHS. Now, the proprietary software that the ...
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1answer
108 views

Avconv only converts a single frame when converting a GIF to WebM format

I am trying to convert GIF images into WebM videos with avconv, but I only get a single frame into the WebM video. Example GIF: I use the flowing command: avconv -i horse.gif -c:v libvpx -qmin 10 ...
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143 views

How to transcode a video to XviD format with GStreamer?

I'm trying to script a GStreamer pipeline to transcode videos to my Meizu M6 miniplayer. I found some scripts to do the transcoding with mencoder, but would like to do that with GStreamer. The device ...
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1answer
44 views

overlay with video offset not starting audio with same offset

I have a video with audio (overlayvideo.mov) that I'm overlaying over another video (basefilem.mp4) and I'm starting the overlay at 20 seconds. The output (finalvideo.mp4) looks great, but the audio ...
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417 views

using ffmpeg to repair corrupted MP4 video files from Xiaomi Yi

did not know wether to create a new thread or to post in an existing one. Decided for the first option, as my case seems to be a little different as I do not have one video corrupted but plenty of ...
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1answer
862 views

Upload Video to Instagram made with Windows Movie Maker

I've made a video using Microsoft's Windows Movie Maker and I've tried saving it as "Recommended for this project", "Android Phone (Medium)" and iPhone. It saves the video as a .mp4 using the H.264 ...
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1answer
22 views

Compress videos to a specified file size?

I have 3 video files that are 50 MB, 100 MB and 150 MB. I want to compress each to 25 MB each. I understand the larger videos will sacrifice more quality. Is there any software that can compress ...
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18 views

Lossless splitting and concatenation of video

I would like to split a video file into several video files in a way that would make it possible to recreate exactly the same original video file later. Can it be done? The videos I have have the ...
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9 views

how to batch convert MP4 files to dvd format (video_ts) [duplicate]

Does anyone know how I can convert (several hundred) MP4 files TO DVD format (video_ts and audio_ts files), and preferably then have them in iso files ready for burning? I have googled and can only ...