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MD AVC/H.264 transcoder

up to 16 DVB-H channels live transcoding from MPEG-2 to H.264

Why H.264 / AAC encoding ?

H.264 (MPEG4-AVC or part.10) is considered the greatest achievement in video compression technology in the past 10 years.

Accompanied by AAC Audio compression it raises the bar considerably compared to MPEG4-ASP and yields better picture quality while significantly lowering the bit rate. This allows lowering transmission costs and enables new video applications.

The new H.264 video compression standard is the first ratified by both the ISO/IEC and ITU-T and is already finding its way into many mainstream video applications.

APPLICATIONS:

Mobile TV broadcast DVB-H and DMB

Live Digital TV broadcast via Satellite, Terrestrial or Cable DVB-S/T/C, ATSC

IPTV (e.g. via xDSLlinks), 3GPP Video Streaming

Transmitting TV signal for further distribution -satellite, IP networks, E1 lines

High Video Quality eLearning, Distance Education.

KEY BENEFITS: KEY FEATURES:
H.264 Video quality is better Comparing to MPEG-2, MPEG-4 ASP H.264 baseline and main profiles, level 3 AAC -Audio Compression
H.264 provides 40-60 % Lower Bitrates compared to MPEG-2; Full live video compression up to HD
Minimal Latency MPEG-2 and RTP outputs

VIDEO COMPRESSSION

VIDEO COMPRESSSION Encoder: MPEG-4 Part 10 (AVC/H.264) (ISO/IEC 14496-10), MPEG-2, VC1 Coming soon Baseline, Main and High Profiles, up to Level 3 Resolution: QCIF up to HD (support for any resolution) Accurate CBR, VBR mode HRD compliant Bitrate from 20 kbps to 6 Mbps Fully configurable GOP structure I, P, B slices, e.g. I-Frames frequency, B-ref pictures with possibility to build hierarchical B patterns, minimum and maximum I-frame distance, adaptive B-frame placement Up to 3 B-frames support Accurate scene change detection with I-Frame insertion Progressive encoding, field picture encoding and MBAFF Macro block/sub block partitioning: 16x16, 16x8, 8x16, 8x8 All intra prediction modes 4x4 integer transform, 8x8, 16x16 Pixel, 1/2 and 1/4 pixel motion estimation Configurable In-loop deblocking filter DCT 8x8 (High Profile) Configurable encoder complexity, selection between different configuration to match desired trade-off between encoding speed and encoding quality. 3 configurable modes of adaptive quantization to enhance video quality. Video pre-processing:De-interlacing De-noise Inverse telecine Resize Crop

VIDEO INPUTS

Resolutions: PAL NTSC Performance

AUDIO COMPRESSION

    

Resolutions:PALNTSCPerformance
HD 1080i 1920x1080 1920 z 1080 1 channel
HD 720p 1280x720 1280x720 2 channels
Full D1 720x576 720x480 5 channels
1/2 D1 352x576 384x576 10 channels
2CIF 704x240 704x288 10 channels
SIF/CIF 352x288 352x240 16 channels
QSIF/QCIF 176x144 176x128 40 channels

any resolution in multiple of 4x4 pixels

AUDIO COMPRESSION

Encoders: MPEG-1 Layer II, AAC, HE-AAC Channels (Modes): stereo or two mono Bit rates (per channel): 8 to 384 kbps, CBR mode 44.1 kHz Sample rate, Gain control: -14 to +12 dB

INPUTS:

MPEG-2 TS

DVB-ASI 4 x, decoding 16 MPEG-2 channels

AV OUTPUTS:

IP: DVB-H, IPTV, 3GPP

Physical: 2 x GbE Protocols: RTP/RTSP streaming over IP Unicast, Multicast streaming

MPEG-2: DMB, DVB-S/T/C, ATSC

Physical: DVB-ASI TS Protocols: MPEG-2 TS, Elementary Streams

GENERAL:

Remote control:

WEB-interface

Remote monitoring:

SNMP v.2, WEB-interface

Dimensions:

19" 1-4RU (model dependent)

Power supply:

100-240 VAC, 50/60 Hz

Power consumption:

500-760 W

ORDERING INFO:

MD8311 4xDVB-ASI in, 16 x MPEG-2 to H264 (CIF), GbE out

MD8312 4xDVB-ASI in, 16 x MPEG-2 to H264 (CIF), ASI out