sunqh,github

aces-dev

AMPAS Academy Color Encoding System Developer Resources

algorithms

Bug-tracking for Jeff's algorithms book, notes, etc.

brave_cpp

A cpp version of Brave based on cocos2dx 3.2

caincamera

CainCamera is an Android Project to learn about development of beauty camera, image and short video

conversion-and-coding-implementation-for-hdr-video-with-pq-transfer-characteristics

The high brightness and dark parts of videos are compressed and lost during the transmitting by the traditional standard dynamic range (SDR). The high dynamic range (HDR) has gained more and more attention, because it can faithfully restore the high brightness and dark parts of grayscale and color level. In order to realize the conversion and coding of HDR of videos, a PQ codec is written on the basis of H.265 in C language and the functions of pre-coding and post-decoding are added. The pre-coding process is divided into Perceptual Quantization (PQ) curve photoelectric conversion, RGB and YCbCr mutual conversion, quantification, sampling. The post-decoding process is inverse process of pre-coded, which includes upper sampling, anti-quantization, color space conversion, perceptual quantification. The core of codec is to use the PQ curve to transform the optical signal into electrical signal nonlinearly, thus expanding the dynamic reproduction range of the traditional transmission system. Finally, decoding videos can realize the whole brightness dynamic range, which is visible to the human eye.

docs

API Documentations, HowTos and Tutorials

earlybird

A Mobile Game Similar to FlappyBird, which is based on cocos2dx-3.0beta2

ffmpeg-libav-tutorial

FFmpeg libav tutorial - learn how media works from basic to transmuxing, transcoding and more

grafika

Grafika test app

hdr_toolbox

HDR Toolbox for processing High Dynamic Range (HDR) images into MATLAB and Octave

ijkplayer

Android/iOS video player based on FFmpeg n3.4, with MediaCodec, VideoToolbox support.

isoviewer

GUI application to have closer look ISO 14496-12 and other MP4 files.

mediapipe

MediaPipe is a cross-platform framework for building multimodal applied machine learning pipelines

mpv

🎥 Command line video player

ods

Mission: To provide a high-quality open content data structures textbook that is both mathematically rigorous and provides complete implementations.

python-100-days

Python - 100天从新手到大师

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