Questions tagged [encoding]

Encoding is the process of converting data into another format. It may refer to encoding codes of characters (ASCII, UTF, OS, etc...), audio (mp3, wave, m4a, etc...) or video (avi, mp4, mkv, etc...). This tag should be use for any question related to the act of format conversion.

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Sending long URLs via Mail using Rich Text decodes special characters

When I send long URLs via OSX Mail using Rich Text formatting, and there will be encoded characters in the URL they will get decoded. For example if the URL contains a very common %2F, then after the ...
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Folder full of text files set to the wrong encoding, how to fix?

I downloaded a ZIP made on the PC that contains two folders filled with a small number of small ASCII text files containing 6502 assembler code. The files were saved as Windows Latin 1, and when I try ...
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218 views

How to clone an NFC tag using iPhone?

My university card is an NFC card, and I would like to create a duplicate of it. I have tried multiple apps through which I have been able to read it and write other stuff. But I don't know how to ...
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107 views

How to create slow frame rate video from image sequence?

I made a set of timelapse .jpg images using a Canon Rebel camera & Magic Lantern. I want to turn it into an .mp4 video. I understand that Quicktime v10.5 can do this, but the slowest frame rate is ...
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Is it possible to view video/audio information in finder or a similar program

From what I can see finder cannot display codec, resolution, bitrate, basic metadata about batches of video and audio files that would be really helpful. As there any way to achieve this or a program ...
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How to batch-convert Dual Fisheye Ricoh Theta 360 Movies into Equirectangular Videos?

How can I batch-convert and blend multiple Dual Fisheye Ricoh Theta 360 Degree MP4 Movies into Equirectangular Videos for upload to YouTube or use in Adobe Premiere and Final Cut Pro?
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55 views

Inconsistent rendering of UTF-8 in Mail

I recently received this (not the first time) in Mail.app on MacOS 11.4: On Jun 24, 2021, at 10:02, web host <support@web.host> wrote: "Head Geek (伟思ç��)" <webmaster@my.TLD> ...
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32 views

How to get TextEdit to save with a ByteOrderMark?

I've saved files with different encodings using TextEdit. After closing the file, with a vim editor, I open the file and type the following to test for the existence of a byte order mark: :setlocal ...
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Encoding problem with mount_smbfs

For development with Visual Studio Code with a remote Docker devcontainer, I have a Samba share mounted on my Mac. In the Finder and the terminal I see all characters correctly displayed. But when I ...
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Korean file name changes to symbols after downloading

file name in a webpage: file name after downloading:
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296 views

Can't export HEVC videos from Photos app

I have a late 2012 iMac running Catalina (10.15.7) as it's too old to upgrade to Big Sur. Photos are synced from my phone with iCloud. I'm unable to export HEVC videos to other formats. When I drag ...
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Why can't Finder quicklook the mp4 I just encoded with ffmpeg?

I just did ffmpeg -i My\ Movie.mov vid.mp4 to convert iMovie output to an MP4. I can't quicklook the mp4 as usual (by pressing space), nor does Finder show a thumbnail for it. Here is ffmpeg -i ...
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Terminal doesn't print special characters after changing to Italian keyboard layout

I'm on a second-hand macbook pro from 2013, running catalina 10.15. It has built-in British keyboard layout but since I mostly write in Italian on an external Italian keyboard, I switched the layout ...
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Encoding videos on iOS

I would like to convert some videos to H265, but this is quite slow on my Mac. I know that the modern A-series chips have hardware encoding/decoding support for H265. I would like to harness the power ...
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528 views

Changing character encoding from Unicode to Ascii

I need to convert the character encoding in some text files created by a third-party app on my MBP Catalina 10.15.6. I'm in unfamiliar waters here, so please indulge my ignorance. Also, please note ...
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Can iMessage send a video as-is, without converting it first?

If I share a video file via iMessage, the recipient doesn't get the exact file I've shared, but a converted version of the video, which has a lower resolution and lower quality (e.g. when I share a ...
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Where is Metadata of Encoding in Plain Text Saved from TextEdit

TextEdit allows for plain text .txt files to be saved with a particular character encoding: Is there any meaningful change to the file's metadata and if so, how do you see it?
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Changing webpage encoding in iOS

Some webpages are encoded differently and not well-configured, so they may show up completely jumbled. One example is this page, originally in Japanese: http://immanuel.sakura.ne.jp/hoby/osakaben/...
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How do I get ffmpeg to encode using constant quality with h264_videotoolbox hardware acceleration for Macs?

Background info: Apple provides hardware acceleration support for encoding h264 and h265 videos through VideoToolbox. ffmpeg has built-in support for VideoToolbox through the h264_videotoolbox codec. ...
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Numbers removes Byte-Order-Mask (BOM) from UTF-8 files when exported as CSV. How to fix?

I am dealing with a requirement where CSV should be UTF-8 encoded, in order to detect this in my java application I am relying on Byte Order Masks which is working perfectly fine but we found out that ...
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Wrong encoding for downloaded files

I try download files from my university site. All I can found it Safari -> View -> Encoding, but it doesn't affect to downloaded files. For example file with cyryllic name: "Задания для групп 80-104Б ...
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92 views

How to convert .wav to .mp3 and maintain iTunes presence?

I have a bunch of .wav files (from synced CDs) that I would like to convert to .mp3 files in order to save space. I found this link which works to batch convert .wav to .mp3, but unfortunately iTunes ...
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The best way to combine two m4v files on Catalina [duplicate]

I've seen Best way to merge mp4 files and I've seen similar articles such as https://www.adeepbite.com/combine-videos-mac-using-quicktime-player/ I have a computer with OSX Catalina. I've got some 3+...
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101 views

Wrong line-drawing characters when write "tree" command output to file

Under macOS Catalina 10.15.1, Using the standard "tree" command (as supplied by MacPorts), if at the Terminal prompt I cd to a folder and then execute tree there, I get output like this: . ├── ...
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2answers
55 views

Files display only ^@^@^@^@

I have some files I was hoping to open and look at. I usually open files of the same extension them on a server in a UNIX environment. These files as far as I can tell have been plain text but ...
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1answer
59 views

How to put file into clipboard without losing control characters?

I have a .txt file originated from Windows, so its line endings are \r\n. Running cat or echo on that file makes those control characters go away. How can I display the file (even in raw bytes if ...
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1answer
126 views

Emojis not rendering

My genuine MacOS is not showing emojis. They look just like this: None of the following solutions worked for me: Creating a new user account Restoring Standard Fonts in Font Book Booting in Safe ...
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1k views

Good starting options for FFmpeg with hevc_videotoolbox?

I am using the latest FFmpeg from MacPorts, and I have a new MacbookPro running macOS Mojave. I was wondering what are good options to start with to use the hevc_videotoolbox encoder? I did a quick ...
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1answer
24 views

How to listen to iMac G3 audio files with no extension on a recent device?

I have several files from my ancient iMac G3 that have no file extensions. They were from a text program that also recorded voice, and read text. It came with the computer, but that was 2 computers ...
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1answer
541 views

How to convert non-utf8 encoding to utf-8 encoding during unzip?

I have the same problem which described here. The only difference is I need to do this in MacOS. Basically, all files are encoded in non-utf8 and zipped on Windows. When I unzip it on MacOS, they ...
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307 views

Can I copy a URL from Safari address bar as percent-encoded string?

What Safari currently does is quite annoying, it copies the URLs as-is, for example: https://zh.wikipedia.org/zh-cn/中國 While I understand why Safari does it (for human readability), many ...
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794 views

iTunes (Music.app) not converting song entirely / skip to the next one when playing

When using iTunes for AAC conversion, sometime only a part of the song is converted (also, when playing the song, iTunes does not plays it entirely and skip to the next one before the end). But when I ...
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77 views

Trying to open a .avi; nothing can recognise it

I am trying to watch an .avi, and for some reason nothing can open it. I've tried using DivX Player, QuickTime Player, VLC, AirParrot 2, Kodi 18.0.rc5, IINA, Elmedia player, and (converting it in) ...
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Audio level in video different between Mac players and other players

I ripped a dvd of a family event using HandBrake, and increased the gain setting to maximum since the audio on the dvd was extremely quiet. Now when I play the resulting m4v on iTunes, Quicktime, or ...
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586 views

iMovie will not recognise my 60fps video?

I've read many posts about this and I have pretty much tried everything and iMovie 10.1.11 (all updated) will not recognise my 60fps video. I've tried everything I can think of: Deleted, moved clips,...
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1answer
122 views

What is the best/fastest way to rip and convert a Blu-ray Disc on an iMac?

I've recently switched (back) from Windows 10 to macOS running on an iMac 27-inch Retina late 2015. While I still used my Windows 10 laptop, I used a program called DVDFab to rip my collection of Blu-...
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1answer
253 views

About converting to UFT8 from a "Simplified Chinese" file having a "garbled" file name

I use Mac with English MacOS interface. I download a file from Chinese website(Simplified Chinese). It is garbled file name. The garbled file name: %E6%B9%96%E5%8D%97IPTV.apk The real file name: ...
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1answer
567 views

In AppleScript, how to open a URL location that contains a hash (#)?

I have a workflow written in Alfred that when opening a URL location in AppleScript, the URL will be urlencoded() which effectively breaks: open location "https://example.com/#hello" & ...
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334 views

Has anyone tried using FFMPEG for converting Slow Motion video captured on an iPhone to something usable on PC?

I was searching for how to move Slow Motion video from my iPhone 7 to my Windows PC. All the answers were coming up using iMovie and other Apple software. As I was not moving the video to a Mac this ...
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188 views

Can’t use convmv in right way?

I’m trying to convert name encoding of some path tree with files using convmv utility. Folders look something like this: Some names are typed with transliteration. This files is okay, and I ...
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2k views

How do I install FFserver on macOS?

I'd like to try FFserver. I've installed FFmpeg (4.0.2) with Homebrew. I've got ffmpeg, ffplay and ffprobe in my path, but no ffserver. In fact no files on my entire hard drive relate to ffserver. ...
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517 views

Mac Excel won't recognize Spanish/Portuguese accents (UTF8 or ANSI)

I'm working with Excel to open a delimited (tabbed) txt file that contains Portuguese and Spanish accents. As you can see below, in the third row there is a title "Último Año" that is correct. ...
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413 views

Opening .doc from Mac Classic on a modern computer

I have an old Macintosh Classic running Mac OS 7.0.3. It has Word 5 installed on it and contains a some .doc files created within it. The documents are in Czech language and contain letters like ěšč ...
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2k views

What will happen if I export a 720p video in Photos to 1080p?

I'm considering exporting all the videos currently stored in my Apple Photos library. These are made up of a mix of different video "qualities," including 1080p and 720p. When I choose the File > ...
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303 views

8-16 RAM update worth it?

I'm using Gopro Fusion Studio to render 5.2k content before editing with Adobe Premiere. I never had problems rendering 4k but 5.2k makes the app crash. My Mac: MacOS Version: 10.13.5 Model: MacBook ...
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244 views

I found but can't open eclipse.ini (bad parsing)

I know the trick with "show package contents" and I've gone to: $ECLIPSE_HOME/Eclipse.app/Contents/MacOS However, the file in there is 'eclipse', rather than 'eclipse.ini' Furthermore, when I open ...
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2answers
5k views

How to capture the H.264 stream of a Logitech c920 camera

I am using a Logitech c920 HD Pro Webcam with my Macbook Pro 17" (early 2011) and Mac OS Mavericks 10.9.5 I am able to record videos with Quicktime 10.3 where I have two options for "quality" with ...
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1answer
992 views

Create a text encoding conversion service in Automator

I was trying to make a Finder service to easily convert text encoding of some files. Because the default charset for Simplified Chinese in Windows is the Chinese national standard GB18030 (not the UTF-...
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4k views

High Sierra quicktime player does not support H.265 videos?

So I upgraded my Mac to high Sierra and I was about the H.265 video encoding standard but when I encode a H.264 video to H.265 standard and then when I attempt to open the video using quick time ...
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600 views

Does Handbrake on the Mac take advantage of OpenCL on a video card?

I recently upgraded my GPU to one that supports double precision floating point math and apparently is compliant with OpenCL 1.2. While I presume that most applications won't see any difference, I am ...