A software-based high-quality MPEG-2 encoder employing scene change detection and adaptive quantization

A software-based high-quality MPEG-2 encoder employing scene change detection and adaptive quantization

This paper presents a software-only MPEG encoder implementation which uses adaptive quantization and scene change detection to enhance the image quality. Scene change detection is coupled to the bit-allocation process, providing a more constant image quality over time. Simultaneously, it is used to assign picture coding types for enabling easy, lossless cutting at scene change positions in a la...

SAMPEG: a scene-adaptive parallel MPEG-2 software encoder

A complexity-scalable software-based MPEG-2 video encoder.

With the development of general-purpose processors (GPP) and video signal processing algorithms, it is possible to implement a software-based real-time video encoder on GPP, and its low cost and easy upgrade attract developers' interests to transfer video encoding from specialized hardware to more flexible software. In this paper, the encoding structure is set up first to support complexity sca...

SmartJukebox: An Efficient and High-Quality MPEG-2 AAC Encoder

*Multimedia Research Laboratories This paper describes high-quality and processor-efficient software implementation of an MPEG-2 AAC LC Profile encoder utilized in “SmartJukebox,” music jukebox software. MDCT and quantization processing are accelerated by 21.3% and 19.0%, respectively, through the use of SIMD instructions. In addition, psycho-acoustic analysis in the MDCT domain makes the use o...

A Software - based High - Quality MPEG - 2 En