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Questions tagged [video-conversion]

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

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

The Super User blog has an entry about Video Conversion done right: Codecs and Software, which covers basics of video conversion tools.

Tools and Tags

Cross-platform:

For Windows:

For OS X:

991 questions
109
votes
3 answers

Converting video from 1080p to 720p with smallest quality loss using ffmpeg

I stack with my high quality movie: 1080p with 60fps. The trouble is lags while playing. I tried to convert it to 720p with ffmpeg: ffmpeg -i MyMovie.mkv -r 60 -s hd720 MyMovie_720p.mkv But I there is significant quality loss because bit rate…
atomAltera
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108
votes
9 answers

Use ffmpeg copy codec to combine *.ts files into a single mp4

I've got a bunch of ts segments described by a single index.m3u8 file: index.m3u8 segment1_0_av.ts segment2_0_av.ts segment3_0_av.ts segment4_0_av.ts segment5_0_av.ts I know they are all encoded the same way. ffprobe gives me the…
Ana
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99
votes
3 answers

Resizing videos with ffmpeg/avconv to fit into static sized player

I have a html 5 video player which is 700px wide, 400px high. I'm trying to use avconv to use ffmpeg to resize (while retaining the aspect ratio) and making sure it fits into my player. Input can be a file of any size, so I need to resize the larger…
Jamie Taylor
  • 1,501
75
votes
7 answers

What is the correct way to fix keyframes in FFmpeg for DASH?

When conditioning a stream for DASH playback, random access points must be at the exact same source stream time in all streams. The usual way to do this is to force a fixed frame rate and fixed GOP length (i.e. a keyframe every N frames). In FFmpeg,…
Mark Gerolimatos
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74
votes
3 answers

Why does preset "veryfast" in FFmpeg generate the most compressed file compared to all other presets?

The FFmpeg wiki says that the best compression rate is by preset "veryslow". But when I am trying it with my video then preset veryfast provides the best compression in my case. The following is the output of my samples: Preset ultrafast ffmpeg -y…
Faisal
  • 851
71
votes
2 answers

How do I convert 10-bit H.265 / HEVC videos to H.264 without quality loss?

My laptop can't handle 10bit H.265 / HEVC videos, so I'm looking to convert them to 10bit H.264. How do I do this using, say, ffmpeg, with the least quality loss? And how can I convert 10-bit H.265 to 8-bit H.265?
HappyFace
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67
votes
1 answer

Downloading m3u8 videos

I am trying to download video from a .m3u8 livestream video format. How can I download m3u8 videos using software on my personal computer such as ffmpeg, youtube-dl, VLC, etc? M3U is a computer file format for a multimedia playlist. One common use…
FarouK
  • 801
65
votes
1 answer

Convert specific video and audio track only with ffmpeg

I have an MKV file (vidui.mkv) with 6 tracks in it. Track 1 - video - xvid - 1920x1080 Track 2 - video - xvid - 720x576 Track 3 - audio - AAC - 1240kbps - English Track 4 - audio - AAC - 648kbps - Spanish Track 5 - audio - AAC - 648kbps -…
hbelouf
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63
votes
4 answers

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 resulting video always starts at the beginning of the…
curmil
  • 1,135
62
votes
1 answer

Convert AVI (Xvid) to MP4 (H.264) keeping the same quality

I want to compress an AVI file to MP4 using an h.264 codec. I could not get the same quality. How can I compress it? Original Video: Original Video Screen: FFmpeg console output (ffmpeg -i input.avi): FFmpeg version SVN-r26402, Copyright (c)…
user183129
59
votes
2 answers

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 with the original settings and not change anything…
orange
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39
votes
4 answers

Lossless extraction of streams from WebM

I would like to extract streams from WebM video files without converting them (re-compression), can somebody recommend any software that can allow this?
Karolinger
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39
votes
4 answers

How can I watch a side-by-side 3D video in 2D?

I have a 3D movie (.MKV), with side-by-side 3D, and it works just fine at home. Now I want to see it at my friend's house, and they don't have a 3D system. Is there any way to crop one of the sides on VLC or convert it to 2D? My friend uses a Mac,…
Joaolvcm
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36
votes
3 answers

Convert from MOV to MP4 Container format

I have a digital camera that records nice 1080p H.264 format but unfortunately it uses the MOV container format. Basically I have nothing but the camera and VLC that play this format natively. Is there a tool out there to convert the video to a…
Jeremy Edwards
  • 543
32
votes
1 answer

ffmpeg - How to copy|extract encoding settings from existing media file?

I wished to be able do this multiple times now so I ask. If I have an existing video or audio file, ffmpeg, mplayer and other media players can detect at least some of it's "propreties" like container, codec and bitrate used, probably various…
n611x007
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