Streaming HD H.264 encoder on programmable processors

Programmable processors have great advantage over dedicated ASIC design under intense time-to-market pressure. However, realtime encoding of high-definition (HD) H.264 video (up to 1080p) is a challenge to most existing programmable processors. On the other hand, model-based design is widely accepted in developing complex media program. Stream model, an emerging model-based programming method, shows surprising efficiency on many compute-intensive domains especially for media processing. On the basis, this paper proposes a set of streaming techniques for H.264 encoding, and then develops all of the code based on the X264 reference code. Our streaming H.264 encoder is a pure software implementation completely written in high-level language without special hardware/algorithm support. Real execution results show that our encoder achieves significant speedup over the original X264 encoder on various programmable architectures: on X86 CoreTM

• Type: Conference
• Year: 2009
• Where: MM
• Authors: Nan Wu, Mei Wen, Wei Wu, Ju Ren, Huayou Su, Changqing Xun, Chunyuan Zhang
• Keywords: Existing Programmable Processors, H.264, MM 2009, Multimedia, Programmable Processors