Design and Performance of a Multi-Stream MPEG-I System Layer Encoder/Player
نویسنده
چکیده
Current efforts in the area of MPEG-I audio/video synchronization have been limited to single audio, single video applications. The MPEG-I specification includes provisions for the interleaving of up to 16 separate video streams with up to 32 distinct audio streams. This paper explores the possible uses of this capability as well as the design of a robust encoder and playback system. Perceived shortfalls within the specification are discussed including the usefulness of time stamps and the lack of sequence start and end codes within the audio stream format. We also describe our implementation of a software-only MPEG-I encoder/player set and describe its performance under various configurations.
منابع مشابه
Implementation of Real-Time MPEG-4 FGS Encoder
While computers become faster than they used to be, software implementation of the latest codec in real time is still a challenging topic. This paper presents our techniques in optimizing MPEG-4 Fine Granularity Scalability (FGS) video encoders. First, zigzag scan is a slow process in video encoding and decoding. While state-of-the-art processors utilize hardware prefetchers to reduce memory la...
متن کاملEfficient modeling of VBR MPEG-1 coded video sources
Performance evaluation of broadband networks requires statistical analysis and modeling of the actual network traffic. Since multimedia services, and especially variable bit rate (VBR) MPEG-coded video streams are expected to be a major traffic component carried by these networks, modeling of such services and accurate estimation of network resources are crucial for proper network design and co...
متن کاملDesign and implementation of a DSP based MPEG-1 audio encoder
The speed of current PCs enables them to decode and play an MPEG bitstream in real time. The encoding process, however, cannot be done in real-time. The purpose of this thesis is to produce a low-cost real-time Digital Signal Processor (DSP) implementation of an MPEG encoder. The DSP will provide an MPEG bitstream to the PC that can be saved to disk. The input to the DSP will be an analog audio...
متن کاملEvaluating QoS Parameters for IPTV Distribution in Heterogeneous Networks
are analyzed, which will be transmitted to a Linux VLC client through means of the aggregation and access servers. The first stream is generated in real time by a capture camera, processed by the encapsulated VC-1 encoder and sent to the Media Server, while the second one is of VoD(Video on Demand) type and the third one will be handled by DVBViewer through the MPEG TS form. The first stream is...
متن کاملA model-based software implementation tool for multiprocessor embedded systems
We apply a formal, automated model-based design tool for synthesizing correct-by-construction parallel implementations of an MPEG-4 video encoder. The tool allows for early prototyping, verification and simulation of embedded applications. The generated software implementations are multi-threaded and customized for system on-chip multi-processor architectures. We consider two HW platforms: a cu...
متن کامل