Moreover, the traffic caused by video applications targeting mobile devices and tablets PCs, as well as the transmission needs for video-on-demand services, are imposing severe challenges on today’s networks. An increased desire for higher quality and resolutions is also arising in mobile applications [2]. Block Diagram: Figure 1: Block Diagram of HEVC Encoder (with decoder modeling elements shaded in light gray). [9] Figure. 1a HEVC Decoder Block Diagram [57] A. Video Coding Layer The video coding layer of HEVC employs the same hybrid approach prediction and 2-D transform coding) used in all video compression standards. Figure. 1 depicts the block diagram of a hybrid video encoder, which can create a bitstream conforming to the HEVC standard. Figure.1a shows the HEVC decoder block diagram. An encoding algorithm producing an HEVC compliant bitstream would typically proceed as follows. Each picture is split into block-shaped regions, with the exact block partitioning being conveyed to the decoder. The first picture of a video sequence (and the first picture at each clean random access point in a video sequence) is coded using only intrapicture prediction (that uses prediction of data spatially from region-to-region within the same picture, but has no dependence on other pictures). For all remaining pictures of a sequence or between random access points, interpicture temporally predictive coding modes are typically used for most blocks. The encoding process for interpicture prediction consists of choosing motion data comprising the selected reference picture and Motion Vector (MV) to be applied for predicting the
Moreover, the traffic caused by video applications targeting mobile devices and tablets PCs, as well as the transmission needs for video-on-demand services, are imposing severe challenges on today’s networks. An increased desire for higher quality and resolutions is also arising in mobile applications [2]. Block Diagram: Figure 1: Block Diagram of HEVC Encoder (with decoder modeling elements shaded in light gray). [9] Figure. 1a HEVC Decoder Block Diagram [57] A. Video Coding Layer The video coding layer of HEVC employs the same hybrid approach prediction and 2-D transform coding) used in all video compression standards. Figure. 1 depicts the block diagram of a hybrid video encoder, which can create a bitstream conforming to the HEVC standard. Figure.1a shows the HEVC decoder block diagram. An encoding algorithm producing an HEVC compliant bitstream would typically proceed as follows. Each picture is split into block-shaped regions, with the exact block partitioning being conveyed to the decoder. The first picture of a video sequence (and the first picture at each clean random access point in a video sequence) is coded using only intrapicture prediction (that uses prediction of data spatially from region-to-region within the same picture, but has no dependence on other pictures). For all remaining pictures of a sequence or between random access points, interpicture temporally predictive coding modes are typically used for most blocks. The encoding process for interpicture prediction consists of choosing motion data comprising the selected reference picture and Motion Vector (MV) to be applied for predicting the