mpeg2encode
===========
MPEG-2 Video Encoder, Version 1.1, June 1994
MPEG Software Simulation Group
(MPEG-L@netcom.com)
Contents:
=========
1. Overview
2. Features and Limitations
3. Usage
4. Interpreting the status information
5. Description of the Encoder Model
6. References
1. Overview
===========
This is the second public release of our MPEG-2 encoder. It converts an
ordered set of uncompressed input pictures into a compressed bitstream
compliant with ISO/IEC 13818-2 DIS [1] (MPEG-2).
This program will evolve to become: ISO/IEC 13818-5 Software Simulation
of MPEG-2 Systems, Video, and Audio.
2. Features and Limitations
===========================
2.1 Features
- generates constant bit rate streams
- encoder model based on MPEG-2 test model 5 (TM5) rev. 2 [2]
- progressive and interlaced video
- also generates ISO/IEC 11172-2 (MPEG-1) sequences
- input formats: separate YUV, combined YUV, PPM
- trace and statistics output
- verifies user parameter settings are legal within Profile and Level
2.2 Current limitations
The encoder currently does not support
- scalable extensions
- MPEG-1 integer pel vectors (half-pel is typically 1 dB better anyway)
and D frame sequences.
- checking for maximum number of generated bits per macroblock
- automatic 3:2 pulldown detection or irregular 3:2 pulldown signaling.
- intra refresh slices (e.g. low delay)
- concealment motion vectors
- special low delay mode rate control
- editing of encoded video
- variable bit rate encoding
- scene change rate control
3. Usage
========
评论26
最新资源