video compression

OPPO Kernel Craftsman

Jun 16, 2023 · Fundamentals

Screen Content Coding (SCC) and HEVC‑SCC Tools: Principles and Performance Gains

Screen Content Coding (SCC) extends HEVC with four specialized tools—Intra Block Copy, Palette Mode, Adaptive Color Transform, and Adaptive Motion Vector Resolution—yielding typical BD‑Rate reductions of up to 19 % for screen‑rich video, though at increased encoder complexity, and is now widely used in cloud environments while mobile adoption remains limited.

HEVCIntra Block CopyPalette Mode

0 likes · 11 min read

Screen Content Coding (SCC) and HEVC‑SCC Tools: Principles and Performance Gains

Bilibili Tech

Sep 20, 2022 · Fundamentals

Common Color Representation Methods and Image/Video Fundamentals

The article explains common color models such as grayscale, RGB and YUV, describes image fundamentals like resolution and aspect ratio, outlines typical storage formats (RGB, YUV420P, NV12/NV21) and their bit‑depth considerations, and introduces video basics including frame rate, compression stages and HDR mapping.

RGBYUVcolor representation

0 likes · 21 min read

Common Color Representation Methods and Image/Video Fundamentals

Baidu Geek Talk

Jun 9, 2022 · Fundamentals

H.265 Video Encoding Principles and Technical Framework

The article explains H.265 (HEVC) encoding fundamentals, describing its two‑layer VCL/NAL architecture, quad‑tree CTU hierarchy, intra‑ and inter‑frame prediction, DCT/DST transform coding, quantization, CABAC entropy coding, and loop‑filtering techniques that together achieve roughly 50 % bitrate reduction while preserving quality.

H.265HEVCVideo Encoding

0 likes · 17 min read

H.265 Video Encoding Principles and Technical Framework

iQIYI Technical Product Team

Nov 5, 2021 · Artificial Intelligence

iQIYI’s QAV1 Encoder Achieves High Compression and Bandwidth Savings Using AV1 and Deep Learning

iQIYI’s QAV1 encoder, which combines the next‑generation AV1 codec with deep‑learning techniques, delivers 20‑42% bandwidth savings and up to 36% higher compression efficiency than x265 while maintaining ultrafast 60 fps encoding speeds, enabling high‑quality 4K/8K streaming and live broadcast across devices.

AV1QAV1Streaming

0 likes · 6 min read

iQIYI’s QAV1 Encoder Achieves High Compression and Bandwidth Savings Using AV1 and Deep Learning

iQIYI Technical Product Team

Dec 11, 2020 · Fundamentals

Analysis of the MSU World Video Codec Competition and the Current State of the AV1 Ecosystem

The MSU World Video Codec Competition highlighted iQIYI’s QAV1 encoder achieving faster speeds and superior compression compared to H.265, while the expanding AV1 ecosystem—bolstered by widespread hardware decoding, platform adoption, and recent QAV1 enhancements such as 8K, HDR, and improved rate‑distortion optimization—promises higher quality video at lower bandwidth costs.

AV1Codec CompetitionQAV1

0 likes · 7 min read

Analysis of the MSU World Video Codec Competition and the Current State of the AV1 Ecosystem

Tencent Cloud Developer

Oct 22, 2019 · Game Development

Key Technologies of Immersive Media in the 5G Era: 3D, Point Cloud, and Compression

With 5G accelerating video traffic, immersive media relies on advanced 3D representation, efficient point‑cloud and video‑based compression, standardized containers, and selective streaming to enable realistic VR/AR experiences across gaming, autonomous driving, and broadcasting, while Tencent’s lab drives standards and future XR applications.

3D5GVR

0 likes · 12 min read

Key Technologies of Immersive Media in the 5G Era: 3D, Point Cloud, and Compression

Tencent Cloud Developer

Jun 27, 2019 · Cloud Computing

Tencent Cloud Enables 5G Ultra-HD Live Streaming for Korean Baseball League with 8K/16K Multi-Tile Encoding

Tencent Cloud, together with CUDO Communications and Intel, is using its Extreme HD 2.0 multi‑tile encoding to stream 8K/16K ultra‑HD Korean Baseball League games over South Korea’s new 5G network, enabling independent tile decoding, high frame rates, and zoom‑in detail while preserving bandwidth and picture quality.

5G streaming8K videoTencent Cloud

0 likes · 7 min read

Tencent Cloud Enables 5G Ultra-HD Live Streaming for Korean Baseball League with 8K/16K Multi-Tile Encoding

Ctrip Technology

Sep 4, 2018 · Mobile Development

Custom Video Compression on iOS: Understanding H.264 Profiles, Levels and Implementation

This article introduces the fundamentals of video compression, analyzes the shortcomings of traditional iOS compression methods, explains H.264 profile and level concepts, examines device support, and provides a step‑by‑step custom iOS solution for controlling bitrate, resolution and frame rate.

AVFoundationH.264Mobile Development

0 likes · 10 min read

Custom Video Compression on iOS: Understanding H.264 Profiles, Levels and Implementation

Efficient Ops

Apr 25, 2018 · Operations

How Tencent Cut Over $1B in Bandwidth Costs with Smart Image & Video Compression

This article shares Tencent SNG's practical experience in bandwidth cost optimization, detailing how advanced image and video compression techniques, adaptive resolution, AI‑driven super‑resolution, and efficient transcoding pipelines reduced over a billion yuan in cash flow while preserving user experience and product quality.

AICost ReductionOperations

0 likes · 24 min read

How Tencent Cut Over $1B in Bandwidth Costs with Smart Image & Video Compression