Questions tagged [video-encoding]
Specific issues with encoding video to a certain format, also related to [video-conversion]
396
questions
98
votes
9
answers
145k
views
Can HandBrake flip/rotate a video?
I'd like to use HandBrake to compress some video that was taken via a camera that was mounted upside down.
I found a reference to a command-line rotate option, but I can't find it in the GUI.
Am I ...
- 1,659
73
votes
1
answer
273k
views
How to specify audio and video bitrate
I have a mov file with the following media information:
Stream 0
Type: Video
Codec: H264-MPEG-4 AVC (part 10)avc1
Language: English
Resolution: 1280x720
Frame rate: 24
Stream 1
Type: Audio
Codec: ...
- 5,985
65
votes
2
answers
135k
views
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 ...
- 1,251
61
votes
1
answer
190k
views
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....
user183129
59
votes
4
answers
127k
views
How do I reduce the size of a huge MP4 video?
I have a 4GB MP4 video file that I shot with the HD Flip Mino. How do I reduce it to no more than 1GB without losing too much quality?
- 4,404
53
votes
3
answers
121k
views
Cheat sheets and -preset settings that actually work with FFmpeg 1.0+
I have looked at various cheatsheets, but they were outdated. What preset settings work well with the latest versions of FFmpeg?
I'm primarily interested in the H.264 and ProRes codecs for low, medium,...
- 2,687
50
votes
3
answers
210k
views
How to generate an MP4 with H.265 codec using FFmpeg?
I want to encode a video file to H.265. The last version of ffmpeg should be support H.265 (Source).
However, I could not find any information about the exact command.
I do not know, which library I ...
- 603
46
votes
5
answers
82k
views
How can I use CRF encoding with nvenc in ffmpeg?
This is my current command for resizing videos (1080p) from 2GB to 300MB, but it takes a lot of time:
mkdir newfiles
for %%a in ("*.mp4") do ffmpeg -i "%%a" -c:v libx264 -preset slow -crf 21 -c:a ...
- 563
35
votes
3
answers
43k
views
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 ...
- 523
31
votes
4
answers
46k
views
How do I replace the audio in an MP4 file without re-encoding?
I've got a video in an MP4 container that I would like to replace the audio track in (not add another audio stream to, nor convert the audio format of).
Someone elsewhere online suggested to use ...
- 9,157
31
votes
9
answers
31k
views
Is there any way to distribute x264 encoding jobs across multiple computers (to increase the encoding speed)?
Does anyone know of a current, active solution to encoding x264 videos across many computers (via the network) to increase encoding FPS?
Brownie points for cross-platform and open source, but just so ...
27
votes
1
answer
23k
views
What ffmpeg command line produces video more compatible across all devices?
So I have users saying H264 videos MP4's don't play audio on Apple's iPad and I struggle to get MP4 videos to play properly on Android too.
There are two different command lines what command line is ...
- 589
27
votes
3
answers
49k
views
Shouldn't we always use Web Optimized for Handbrake?
I use Handbrake sometimes to compress video files, and notice that the "Web Optimized" option is not chosen by default, and cannot be set to the default in Options either.
But I tried both Web ...
- 9,696
26
votes
3
answers
61k
views
Which resize algorithm to choose for videos?
I'm using VirtualDub for encoding with those settings.
However I record my stuff in 1920x1080 and resize it down to 1280x720. Now the question: which algorithm should I choose when making a balanced ...
- 6,491
24
votes
1
answer
30k
views
FFmpeg split video and merge back
I'm trying to use FFmpeg to split video based on some start_time and end_time inputs, and replace those with other video files. For instance, for input 10 15 I will need to replace EXACT seconds 10 to ...
user608414
23
votes
9
answers
44k
views
How to make Handbrake preserve capture time / creation time?
Handbrake is an awesome video compression tool, but it doesn't seem to preserve the original capture time after a video is compressed. Any idea how to fix this?
- 401
23
votes
3
answers
50k
views
How can I get high quality/low size MP4s like the LOL release group?
Release group LOL does an excellent job at encoding their releases on The Vampire Diaries (on other shows like How I Met Your Mother the bitrate is higher, so doesn't seem this effective).
About 200 ...
- 231
21
votes
6
answers
17k
views
ffmpeg: limiting to single CPU core when encoding h264
I need to reduce the framerate of some H.264 videos in the background without maxing out my CPU (on Linux). Somehow -threads 1 has no effect at all:
ffmpeg -threads 1 -i 50fps.mp4 -filter:v fps=30 ...
- 493
21
votes
3
answers
29k
views
FFmpeg drops frames when encoding a png image sequence into an x264 mp4 video
I'm trying to encode an image-sequence (frame0001.png, frame0002.png, ... , frame0160.png) into an x264 video using the following command:
ffmpeg -i frame%04d.png -sameq -r 24 out.mp4
After encoding,...
- 591
20
votes
3
answers
64k
views
How can I re-encode H.264 video with minimal quality loss?
I have a lot of MPEG-TS files (.TS container but H.264 video) and playback is fine except that when you skip forward/backward or fast forward it's very sluggish and gets pixelated, etc.
I've been ...
- 1,235
20
votes
1
answer
21k
views
How do I translate HandbrakeCLI options to FFmpeg options?
I have a bunch of commandline settings that work for handbrake, but sometimes on some videos (I have no idea why) handbrake throws "Out of memory exception". I was wondering if I can find the same ...
- 667
18
votes
7
answers
2k
views
What tool can I use to to rip DVD movies? [closed]
What tool can I use to to rip DVD movies? I have used "Dr. DivX" long back. Is there any better tool to rip DVDs?
15
votes
1
answer
27k
views
Using ffmpeg to denoise (reduce film grain)
I have a large collection of movies I'd like to re-encode to both reduce size and improve picture quality. A large number are old black and white movies that are pretty grainy, but even titles through ...
- 185
14
votes
1
answer
12k
views
What bunch of ffmpeg scripts do I need to get HTML5-compatible "Video for everybody"?
What list of commands should I do in ffmpeg/mencoder/some_other_CLI_app to get a video in all the right formats to use Video for Everybody?
i.e. Is there a subtlety that prevents there being a ...
13
votes
3
answers
28k
views
Will I get any visual benefit if I use CRF values below 17/18 in x264 (FFmpeg)?
Will I get any visual benefit if I use CRF (Constant Rate Factor) values below 17/18 in x264 (FFmpeg)? Will there be any differences other than size?
CRF 17/18 are visually lossless.
CRF 0 means, ...
- 414
12
votes
1
answer
19k
views
ffmpeg says that "'.mkv' is not a suitable output format"
I have trouble with ffmpeg, I want to do a two-pass encoding, plus denoise and deblock if possible.
This is a command I thought would work but I am getting all sorts of problems:
ffmpeg -y -i file....
- 1,199
12
votes
2
answers
16k
views
What parameters should I be looking at to reduce the size of a .MOV file?
My Canon 60D creates .MOV files when recording video and I've found out that the .MOV container has an H264 video stream and a PCM audio stream.
I've used ffmpeg and GSpot to look at some of my ...
12
votes
2
answers
21k
views
How to compile the best version of FFmpeg for Cygwin/Windows
It's generally accepted that, by default, FFmpeg comes packaged with lower-quality encoders - particularly when it comes to the default AAC encoder and the default resampler.
According to these ...
- 13k
11
votes
4
answers
46k
views
How to losslessly combine multiple AVI files into a single file?
I would like to combine multiple movie clips with .mov and .avi extension into a single file. Is there any free software in the market that is good and able to perform that?
Preferably that should ...
- 277
10
votes
1
answer
4k
views
How can I compress video by taking advantage of its static content?
I have an HD video that is a presentation, so it consists mostly of still images. It's a 50 minute, 200MB MP4 file, downloaded from YouTube.
Is there a way to take advantage of the static nature of ...
- 225
9
votes
2
answers
31k
views
AV1 encoding with ffmpeg
Since the newest version (4.0), ffmpeg supports the AV1 codec. VLC should also be able to play AV1 videos.
Unfortunately I haven't found the syntax to encode existing videos to AV1. I use ffmpeg ...
- 707
8
votes
3
answers
695
views
Video encoding for archival
I would like to archive some home videos (DV). I don't need to save them losslessly, but I would like to encode them in something high-quality.
What format is both pretty indistinguishable from the ...
- 1,223
8
votes
2
answers
18k
views
How to add additional key frames to video using ffmpeg?
I want to add key frames on the base of a specific interval (20 frames) to my video.
Therefore I used the following command in ffmpeg:
ffmpeg -i <input> -vcodec libx264 -x264-params keyint=20:...
- 503
8
votes
2
answers
2k
views
How do I use my GPU to accelerate video encoding?
I have an ATI Radeon HD 4870 graphics card. I have read that I can use this to significantly speed up encoding DVD to AVI.
Does anyone know how this can be done?
- 34.5k
8
votes
7
answers
45k
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 ...
- 8,716
7
votes
9
answers
2k
views
Converting a video from VOB to AVI while making the file smaller
How do I convert a video from one format, in this case a .vob into another, say .avi?
I have a DVD of 4.2 GB and would like to convert that to a smaller filesize and different format of an .avi file ...
- 167
7
votes
4
answers
13k
views
Get the list of I-Frames in a video in FFMPEG / Python
I'm trying to select say 10 frames from a given video, possibly with highest variety and scenes. I would like to experiment with various selection scenarios, but the good thing is that the notion of I-...
- 539
7
votes
2
answers
5k
views
What are the differences between the HuffYUV and ffvhuff codecs in FFmpeg?
Doing ffmpeg -codecs | grep -i huffyuv shows that my FFmpeg build supports three different versions of the HuffYUV lossless video codec:
DEVI.S ffvhuff Huffyuv FFmpeg variant
DEVI.S ...
- 13k
7
votes
2
answers
16k
views
Setting the profile level for libx265 using ffmpeg
I'm trying to set the profile level of libx265 to mainstillpicture using ffmpeg. But I can't seem to do so. I'm basically trying to encode every frame as intra frame (only spatial encoding) with no ...
- 73
7
votes
1
answer
15k
views
Video uploads to YouTube with no sound
I have a video camera which, when I try to upload the videos to Youtube taken with it, the sound is removed. I used to be able o upload sound but then something happened and ...now I can't. If ...
- 498
7
votes
1
answer
24k
views
Handbrake: How to retain sharpness when down-sampling video during an encode?
I have a bunch of 1280x720 resolution videos, but I really don't need to have that high resolution, so I thought of re-encoding and resizing them to 852x480 to save some space, but I noticed Handbrake ...
- 1,233
6
votes
2
answers
29k
views
ffmpeg: how to create an interlaced h.264 video?
I would like to convert a high quality non interlaced input video into a less quality but wider distributable H.264/MP4 format. The output should have some constraints - in particular: it should be ...
- 121
6
votes
2
answers
27k
views
Using CRF and setting a maximum bitrate with x264 in FFmpeg
I am trying to transcode a video to H.264/MP4. I am using the crf = 20 option but according to the requirements I also want to limit the maximum bitrate to 3 MBit/s.
I was trying to cheat though it ...
- 91
6
votes
1
answer
8k
views
How do I convert the format of an audio track inside an MP4 video?
I have an MP4 File with an AVC video track and an MP3 (not AAC) audio track.
Video: MPEG4 Video (H264) 1920x1080 [Video]
Audio: MPEG Audio 44100Hz stereo 192kbps [Audio]
While some video players are ...
- 63
6
votes
3
answers
20k
views
Best Intel Quick Sync software for h.264 transcoding
I would like to know the best (fast) software for video encoding and transcoding video into h.264 that makes use of Intel Quick Sync.
I looked at Media Espresso by Cyberlink but it does not have many ...
- 169
6
votes
1
answer
679
views
Does x264 support time-based rate control constraints?
I’m aware of techniques to give the encoder freedom to ramp up bitrate for relatively complex sequences, but this has the consequence of inflating the overall bitrate compared to whatever was desired ...
- 24.8k
6
votes
1
answer
12k
views
Retrieve the HandBrakeCLI command from HandBrake GUI
I understand that the HandBrake application uses the HandBrakeCLI command-line application to do the actual encoding job
From all the encoding settings I've set on the HandBrake UI, how can I ...
- 163
6
votes
1
answer
679
views
How to determine segments of footage held in common between different video files?
Context:
Say I have two video files--rips from a DVD or DV tape. They are both MKV or AVI format, some standard container or other, but were ripped separately, with different encoders, different ...
- 2,903
6
votes
1
answer
6k
views
ffmpeg minimal requirements configuration for encoding and decoding h264 files
I'm trying to compile ffmpeg with minimal requirements in order to encode/decode with h264.
So far my command line configuration is :
./configure --disable-yasm --disable-everything --enable-encoder=...
- 171
5
votes
1
answer
9k
views
Lossless rotation of video (MPG, MP4)? [duplicate]
It is possible -- indeed, quite easy -- to rotate JPEG-files without re-encoding them, which means, no additional loss of quality is introduced in the process.
Is the same possible for the similarly-...
- 664