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Top 15 C++ Encoder Projects
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Technically it also had a fourth :^) [0] but it was spun out into a separate project of its own, jpegli [1]: JPEG but it uses some tricks from JPEG XL. These include spatially adaptive quantization, quantization matrices that better preserve psychovisual detail, more efficient color spaces, and also HDR (10+ bit depth) support [2].
[0] https://github.com/libjxl/libjxl/tree/main/lib/jpegli
[1] https://github.com/google/jpegli
[2] https://opensource.googleblog.com/2024/04/introducing-jpegli...
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InfluxDB
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Arduino-FOC
Arduino FOC for BLDC and Stepper motors - Arduino Based Field Oriented Control Algorithm Library
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PCF8574_library
PCF8574 library. i2c digital expander for Arduino, Raspberry Pi Pico and rp2040 boards, esp32, SMT32 and ESP8266. Can read write digital values with only 2 wire. Very simple to use and encoder support.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Project mention: Weird things I learned while writing an x86 emulator | news.ycombinator.com | 2024-07-10
> Other architectures, like [...] ARMv8, are much more consistent.
From an instruction/operation perspective, AArch64 is more clean. However, from an instruction operand and encoding perspective, AArch64 is a lot less consistent than x86. Consider the different operand types: on x86, there are a dozen register types, immediate (8/16/32/64 bits), and memory operands (always the same layout). On AArch64, there's: GP regs, incremented GP reg (MOPS extension), extended GP reg (e.g., SXTB), shifted GP reg, stack pointer, FP reg, vector register, vector register element, vector register table, vector register table element, a dozen types of memory operands, conditions, and a dozen types of immediate encodings (including the fascinating and very useful, but also very non-trivial encoding of logical immediates [1]).
AArch64 also has some register constraints: some vector operations can only encode register 0-15 or 0-7; not to mention SVE with it's "movprfx" prefix instruction that is only valid in front of a few selected instructions.
[1]: https://github.com/aengelke/disarm/blob/master/encode.c#L19-...
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SimpleRotary
SimpleRotary is a Arduino library for using basic bare-bones type rotary encoders. Usually these are the cheap ones without the breakout board. - Getting rotary encoder rotation direction. - Getting rotary select button press. - Getting rotary select button long press. - Getting rotary select button press time. - Basic debouncing of rotary / button. - Basic error correcting of out-of-sync rotational readings. - Use of both high and low triggers.
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Rotary_Encoder_Breakout-Illuminated
This is a clever little breakout board for both the RGB and R/G illuminated rotary encoders.
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EncSim
Quadrature signal generator for testing encoder software. Requires a PJRC Teensy board. Generates quadrature signals with adjustable frequency, phase and bouncing
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C++ Encoder discussion
C++ Encoder related posts
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How JPEG XL Compares to Other Image Codecs
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JPEG XL Reference Implementation
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JPEG XL v0.9.0 Released
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Stripping Metadata
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Why "sudo make install"?
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vvenc-1.9.0 released
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BLDC motor with common enable
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A note from our sponsor - InfluxDB
www.influxdata.com | 19 May 2025
Index
What are some of the best open-source Encoder projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | libjxl | 2,958 |
| 2 | Arduino-FOC | 2,315 |
| 3 | vvenc | 1,041 |
| 4 | ArduinoMenu | 987 |
| 5 | tiny-utf8 | 547 |
| 6 | flacon | 473 |
| 7 | PCF8574_library | 234 |
| 8 | fuif | 170 |
| 9 | audify | 136 |
| 10 | disarm | 40 |
| 11 | CatraMMS | 38 |
| 12 | SimpleRotary | 32 |
| 13 | Rotary_Encoder_Breakout-Illuminated | 19 |
| 14 | EncSim | 17 |
| 15 | fpng-java | 2 |
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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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