TW5864B1
features such as video analytic intelligence.
TW5864 features
H.264 baseline level 3 pliant encoder capable of performing up to 5 D1 equivalent video encoding (125 fps for PAL and 150 fps for NTSC), 17 channel G.726 ADPCM hardware audio encoder with one channel for two way audio munication. The H.264 video encoder supports dual-bitstream pression for both local storage and network port outputs. It also features a motion JPEG encoder for up to 25 frames per second shared among all video channels.
TW5864 integrates 4 A/V decoders. It has 4 CVBS analog inputs fed into four internal high quality NTSC/PAL video decoders. In addition, it has 3 digital BT. 656 input, running up to 108 MHz, capable of receiving up to 12 D1 video channels from external multi-channel video decoders such as TW2866 / TW2867. This allows the TW5864 to support a total of 16 video input channels. The video streams from both on-chip/off-chip video decoders are fed into H.264 encoder as well as to external interfaces for preview purpose. The preview stream can go through either though four BT. 656 video output interfaces or PCI interfaces. The four BT 656 ports support both multi-channel byte or line interleaved output to interface with various external display solutions.
TW5864 has built-in de-interlacers and OSDs before encoding is performed. There are also 16 sets of motion detection / night detection / blind detection engine for channel alarm notification. In addition, the hardware encoder generated motion information of each channel is accessible to the external CPU for analytic purpose. TW5864 also integrates many sets of scalers for each of the H264 encoder, MJPEG, and preview paths. Each of these scalers is independently configured.
TW5864 provides both asynchronous host interface and PCI interface for external CPU control and bitstream...
