{"id":637558,"date":"2024-11-06T01:02:35","date_gmt":"2024-11-06T01:02:35","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-iec-tr-21000-122005\/"},"modified":"2024-11-06T01:02:35","modified_gmt":"2024-11-06T01:02:35","slug":"iso-iec-tr-21000-122005","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-iec-tr-21000-122005\/","title":{"rendered":"ISO\/IEC TR 21000-12:2005"},"content":{"rendered":"<p>ISO\/IEC TR 21000-12:2005 specifies a test bed that is designed to assist in performance assessment of MPEG-21, Scalable Video Codec (SVC) for streaming applications, and for the evaluation of resource delivery technologies over unreliable packet-switched networks. The streaming protocols used in the test bed are based on RTSP and RTP. The Network Adaptation QoS mechanism of MPEG-21 Digital Item Adaptation (DIA) is used for bandwidth-scalable streaming. A subset of MPEG-4 IPMP is also included in the test bed so that encrypted streaming and layered access functionality of a DRM system can be tested for different SVC designs.<\/p>\n<p>The test bed includes a network emulator GUI that interfaces with a Linux-based network emulator, NistNet, for real-time emulation of channel characteristics of various networks. Therefore:<\/p>\n<ul>\n<li>Various scalable codec (audio, video, scene composition) technologies can be evaluated.<\/li>\n<li>Various packetization methods and file formats can be evaluated.<\/li>\n<li>Various multimedia streaming rate control and error control mechanisms can be plugged into the test bed and evaluated.<\/li>\n<\/ul>\n<p>In summary, the following MPEG technologies are demonstrated by the test bed:<\/p>\n<ul>\n<li>MPEG scalable audio and video codecs;<\/li>\n<li>MPEG-4 on IP;<\/li>\n<li>MPEG-4 IPMP (a small subset); and<\/li>\n<li>MPEG-21 DIA Network Adaptation QoS.<\/li>\n<\/ul>\n<p>The architecture and the API are not tied to any particular media codecs. However, currently only the MPEG-4 FGS video and MPEG-4 BSAC audio are officially supported by the software. The support for ISO\/IEC 21000-13 (MPEG-21 part 13) SVC will be included when that International Standard is ready.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Information technology \u2014 Multimedia framework (MPEG-21) \u2014 Part 12: Test Bed for MPEG-21 Resource Delivery<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/iso\/\"><b>ISO<\/b><\/a><\/td>\n<td>2005-04<\/td>\n<td>28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":637571,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[661,2634],"product_tag":[],"class_list":{"0":"post-637558","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-35-040-40","7":"product_cat-iso","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/637558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/637571"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=637558"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=637558"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=637558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}