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OPPO Kernel Craftsman
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
Baidu Geek Talk
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.265HEVCentropy coding
0 likes · 17 min read
H.265 Video Encoding Principles and Technical Framework
Bilibili Tech
Bilibili Tech
Apr 22, 2022 · Frontend Development

Bilibili's WasmPlayer: WebAssembly-based HEVC Soft Decoding Solution for Web Video Playback

Bilibili’s WasmPlayer is a WebAssembly‑based HEVC software decoder that runs entirely in C/C++, handling demuxing, decoding, resampling and A/V sync on worker threads, using SIMD, AudioWorklet and OffscreenCanvas to deliver smooth 4K 60 fps web video playback with reduced bandwidth and CPU load.

AudioWorkletHEVCOffscreenCanvas
0 likes · 13 min read
Bilibili's WasmPlayer: WebAssembly-based HEVC Soft Decoding Solution for Web Video Playback
Bilibili Tech
Bilibili Tech
Apr 19, 2022 · Fundamentals

Understanding Video Compression: Factors That Influence Bitrate and Encoding Strategies

Video bitrate depends on content complexity, resolution, frame rate, and the chosen codec and bitrate‑control method, with modern encoders like HEVC and AV1 using advanced prediction, transform, quantization and entropy coding to dramatically reduce size while preserving perceived quality for smoother streaming.

AV1BilibiliHEVC
0 likes · 21 min read
Understanding Video Compression: Factors That Influence Bitrate and Encoding Strategies
Sohu Tech Products
Sohu Tech Products
Dec 1, 2021 · Mobile Development

Understanding HEIF Image Format and Its Implementation on Android

HEIF (High Efficiency Image File Format) offers superior compression, support for image sequences, depth and transparency, and is natively supported on iOS and Android P, with implementation options via ImageDecoder, BitmapFactory, or conversion to JPEG, though adoption faces compatibility and hardware licensing challenges.

AndroidHEIFHEVC
0 likes · 8 min read
Understanding HEIF Image Format and Its Implementation on Android
iQIYI Technical Product Team
iQIYI Technical Product Team
Jun 5, 2020 · Fundamentals

Video Encoding Standards: Evolution, Patents, and Industry Adoption in Chinese Streaming Platforms

Video encoding standards—from H.264 to AV1 and China’s AVS series—have successively doubled compression efficiency, lowering bandwidth and storage costs, while patent royalties steer industry adoption, prompting Chinese platforms like iQIYI to develop proprietary, high‑speed encoders and prepare for next‑gen codecs such as AVS3 and H.266.

AV1AVSHEVC
0 likes · 18 min read
Video Encoding Standards: Evolution, Patents, and Industry Adoption in Chinese Streaming Platforms