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Sensoray model 2253 is a compact and robust USB-compatible audio/video codec that is powered from a single USB port. Its small size (1.5" x 2.75") and low power consumption (1.5 Watts) make it ideal for both portable and embedded applications.
Multiple, independent video processors allow the unit to simultaneously produce two different video streams from its single composite input and send the streams out over USB. One of the streams can be a low-latency uncompressed stream (useful for real time previewing) and the other compressed, or both streams may be compressed. Image transformations (resolution, rotation, mirroring) are independently configurable for each stream, as well as compression type and bit rate in the case of compressed streams.
Pause and resume are supported for both stream capture and playback. Up to 1024 bytes of application-supplied data can be inserted in the H.264 or MPEG stream at regular frame intervals or single shot, and closed captions are supported for H.264 streams.
Features:
- Simultaneous encode/decode/preview in a robust, compact unit
- Low preview latency
- H.264 HP@L3, MPEG-4 ASP, MJPEG video compression
- AAC, G.711 audio compression, uncompressed PCM
- Unicode text and graphic overlay
- Closed caption/VBI support for H.264 streams
- MP4 files can be edited in Adobe Premiere with A/V sync preserved
- Transport Stream
- Small Form Factor
Specifications:
- Video
- Input: 1 NTSC/PAL composite, 75 Ohm
- Output: 1 NTSC/PAL composite, 75 Ohm
- Preview format: 640x480@ 30 fps (NTSC); 720x576@25 fps (PAL); YUV4:2:2, GREY8, JPEG, RGB
- Preview latency: See timing diagrams below
- Audio
- Inputs:
- 1 line stereo + 1 microphone mono
- Software selectable (only one may be active)
- Output: 1 line stereo
- Overlay
- Text Overlay: Up to 160 characters for full resolution images
- Video Output Overlay: Up to 256 regions of BMP and PNG (with 24 or 32 bits/pixel), or unicode text.16-bit color, 3-bit alpha channel
- Video Capture Overlay: Up to 8 monochrome regions of BMP and PNG (with 24 or 32 bits/pixel), or unicode text
- Streams
- Image transformation
- 2 independent image transformers:
- Resize to various resolutions
- Rotate 90°/180°/270°
- Mirror horizontally or vertically
- Encoding format
- Video: H.264 HP@L3, MPEG-4 ASP, JPEG;
- Audio: G.711, AAC
- Output stream format: Elementary audio/video, MPEG-4 program stream (.MP4), MJPEG AVI, Transport Stream
- System
- Interface USB 2.0 High-speed
- Digital I/Os
- 1 input, galvanically coupled or optically isolated
- 1 output, optically isolated
- Power consumption: <1.5 W (300 mA @ 5 V) from USB port
- Operating temperature
- Standard version: 0 to 70 °C
- Extended version: -40 to +85 °C
- Dimensions
- 2253: 2.755" x 1.5"
- 2253S: 5.14" x 3.28" x 1.14"
Part Numbers
A/V MPEG-4, MJPEG, H.264 Encoder/Decoder with Overlay
Model: 2253 Please see below
Model | Description |
Standard Temperature |
2253 | Audio/Video MPEG-4,MJPEG,H.264 Encoder/Decoder Board |
2253S | Audio/Video Encoder/Decoder with Enclosure |
Extended Temperature |
2253-ET | Audio/Video Encoder/Decoder Board, Extended Temperature |
2253S-ET | Audio/Video Encoder/Decoder with Enclosure, Extended Temperature |