

LEAD H.263 Video Codec
H.263 is an ITU standard, designed for low bitrate communications such as video-conferencing and video-telephony applications. At the same time it can be used for a wide range of bitrates and not just low bitrates. H.263 is a hybrid of interframe compression that makes use of temporal redundancy and intraframe transform coding to use spatial redundancy as a compression advantage. Accordingly, a superior compression ratio can be achieved in comparision to other video codecs.
The LEAD H.263 codec is a high quality lossy interframe DirectShow and Video for Windows (VfW) codec with a quality and compression ratio comparable to MPEG-4. It can be used for a range of applications including video-conferencing, Internet video or surveillance and monitoring. The LEAD H.263 codec is suitable for videos captured from cameras as well as video screen captures. This video codec registers into the Windows collection of multimedia drivers and integrates with any application using DirectShow and Microsoft Video for Windows. Existing video software, such as Windows Media Player and Ulead Media Studio can utilize this codec to play, create, convert and edit.
Key features of the LEAD H.263 Video Codec:
- Interframe compression comparable to MPEG-4.
- Rate control algorithm based on the TMN8 which is suitable for videophone applications.
- The encoder accepts UYVY, YUV2, YV12, I420, RGB24 and RGB32 formats.
- Decoder can produce RGB24, RGB32 YUY2, YV12, RGB555 and RGB565 formats.
- Codec implements all elements and functionality of ITU-T H.263, plus
- Deblocking Filter Mode (Annex J)
- Unrestricted Motion Vector (Annex D)
- Advance Intra Coding Mode (Annex I)
- Advance Prediction Mode (Annex F)
- Modified Quantization Mode (Annex T)
- Alternative Inter VLC Mode (Annex S)
- Supports any video dimension.
- Employs half pixel precision for motion compensation.
- Unrestricted motion vectors.
- The LEAD H.263 Video Codec includes: LEAD H.263 Decoder, LEAD H.263 Encoder, LEAD ISO Demultiplexer, LEAD ISO Multiplexer, LEAD Ogg Multiplexer, LEAD Ogg Splitter and LEAD Video RGB converter.
Are you a software developer looking for multimedia tools to create your own application? LEAD offers a complete line of Multimedia SDKs with MPEG-2 compression, H.264 and more. Click here to visit the LEADTOOLS developer website.