SPEAR1340 datasheet(28/200 Pages) STMICROELECTRONICS

28 / 200 page

Device functions

SPEAr1340

28/200

Doc ID 023063 Rev 4

2.23

Video encoder (VENC)

A multiformat video encoder is integrated in SPEAr1340 with 64-bit AXI master and 32-bit

AHB slave interfaces. It supports H.264 high profile video resolution up to 1080p and JPEG

still picture up to 64 Mpixel.

Main features:

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H.264 profile and level

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Baseline, main and high profiles, levels 1- 4.0

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JPEG profile and level

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Baseline (DCT sequential)

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Video stabilization

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I and P slices support

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CAVLC baseline and CABAC main profile

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Error resilience

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Constrained intra prediction

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Slices, multiple of macro blocks rows

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Maximum motion vector length

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Vertical ±14 pixels

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Horizontal ±30pixels

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12 intra prediction modes

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Motion vector pixel accuracy

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720p resolution ¼ pixels

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1080p resolution ½ pixels

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Macroblock and sub-macroblock partitions: 16x16, 8x16, 16x8, 8x8, 4x8, 8x4,4x4

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Transforms 4x4 baseline, main and high profiles

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1 reference frame support

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Maximum 1 slice group support

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Input data formats

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Planar YCbCr 4:2:0, semiplanar YCbCr 4:2:0, interleaved YCbCr 4:2:2

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Output data formats

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H.264 (Byte and NAL unit stream)

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JPEG( JFIF file format 1.02 and non progressive JPEG)

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Supported image size

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H.264: 96x96 to1920x1020

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JPEG: 96x96 to 8192x8192

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Step size 4 pixels

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Pre-processing features

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YCbCr 4:2:2 to YCbCr 4:2:0 color space conversion for all YCbCr input formats

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Cropping from 8192 x 8192 to any supported encoding size

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Rotation of 90 or 270 degrees

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