This rendering framework, distributed under the GNU GPL v2 license, is a software tool for comfortable generation of scalable impaired stereoscopic video content as a basis for subjective quality evaluation tests.
This hierarchically structured framework is MATLAB-based (MATLAB 220.127.116.114, R2008a) and can be initialized via independent external graphical user interfaces. We provide a Microsoft EXCEL interface as well as a MATLAB interface to make interdisciplinary collaboration easier and more productive. Our modular software concept allows batch processing, automated documentation and a high degree of updatability since own algorithms can be added or replaced. The framework can handle state of the art video codec's, is able to deal with numerous digital image and video file formats in Multiview or Source and Depth Technology.
The rendering framework has connections to a stereoscopic content database and an artefact function database. There are 31 scalable artefact functions available at the moment, hitting all stages of the content delivery scenario that has been defined in the Mobile3DTV project. 14 in the capturing stage, 9 in the coding stage, 2 in the representation stage, 1 in the transmission stage and 5 in the visualization stage.
The artefacts have been identified and classified in the Technical report "Classification of stereoscopic artefacts". Detailed information about the framework, its structure and implementation can be found in the Technical report "Software for Simulation of artefacts and database of impaired videos".
Decaps is a software tool for decoding DVB-H compatible MPEG transport streams (TS). Decaps is a free software and it is distributed under the GNU GPL v2 license. Currently it runs on Linux but future releases might include also Windows versions with somewhat limited functionality.
Decaps can extract the Multiprotocol Encapsulated (MPE) data such as IP packets from a transport stream and optionally also decode the MPE-FEC forward error correction data. The output can be either forwarded to a network host or saved in a file as a stream of raw IP or RTP packets. It is also able to decapsulate RTP streams containing H.264 NALUs (as specified in RFC 3984), and then save the video in the H.264 Annex.B bytestream format.
The program has been developed mainly for simulating the transmission of video over DVB-H. Together with FATCAPS DVB-H IP Encapsulator and a transmission channel model, it can be used for end-to-end simulation of the DVB-H transmission chain.
Decaps alone is not enough for receiving and watching terrestrial DVB-H broadcasts on a computer. There is no support for electronic service guide or automatic discovery of services. DVB-T receiver devices are not directly supported but it is possible to feed live transport streams to its standard input using another program.
Author: Antti Tikanmäki