What is MPEG? MPEG is known as popular video format, which stands for Motion Picture Editors Guild. It was formed by ISO to set standards for audio and video compression and transmission.The MPEG standards consist of different Parts. Each part covers a certain aspect of the whole specification.The standards also specifies Profiles and Levels. Profiles are intended to define a set of tools that are available, and Levels define the range of appropriate values for the properties associated with them, see as follow:
MPEG-1: is the first compression standard for audio and video. It was basically designed to allow moving pictures and sound to be encoded into the bitrate of a Compact Disc. MPEG-2: Transport, video and audio standards for broadcast-quality television.
MPEG-2 standard was considerably broader in scope and of wider appeal--supporting interlacing and high definition. MPEG-2 is considered important because it has been chosen as the compression scheme for over-the-air digital television ATSC, DVB and ISDB, digital satellite TV services like Dish Network, digital cable television signals, SVCD, and DVD.
MPEG-3: Developments in standardizing scalable and multi-resolution compression which would have become MPEG-3 were ready by the time MPEG-2 was to be standardized; hence, these were incorporated into MPEG-2 and as a result there is no MPEG-3 standard.MPEG-3 is not to be confused with MP3, which is MPEG-1 Audio Layer 3.
MPEG-4: MPEG-4 uses further coding tools with additional complexity to achieve higher compression factors than MPEG-2.In addition to more efficient coding of video, MPEG-4 moves closer to computer graphics applications. In more complex profiles, the MPEG-4 decoder effectively becomes a rendering processor and the compressed bitstream describes three-dimensional shapes and surface texture.
Recommeded software:
1.AVS Video Editor.
AVI Video Editor is a professional video editing software which can master video and slideshow with multiple fancy effects and transition.It supports all popular video formats including , etc.), MP4 (inc. Sony PSP and Apple iPod), WMV, 3GP, 3G2, QuickTime (MOV), DVD, VOB, VRO, MPEG-1, 2, 4, MPG, DAT, MJPEG, Real Video (RM, RMV). You can import your videos directly from your devices like DV, TV tuner, ect. AVI Video Editor can precisely trim and cut videos, apply various effects to your video programme.
2.Aiseesoft Total Video Converter.
Aiseesoft Total Video Converter is the Best Video Converter software that created to help you convert video to MP4/MKV/WMV/AVI and other popular formats such as: MP4, H.264, AVI, MP3, WMV, WMA, FLV, MKV, MPEG-1, MPEG-2, 3GP, 3GPP, VOB, DivX, Mov, RM, RMVB, M4A, AAC, WAV, etc with high speed and excellent sound/image quality. In addition, the Best Video Converter can also extract audio from video file and convert them to M4A, MP3, AC3, AAC, WMA, WAV, OGG as you want.
3.Xilisoft HD Video Converter.
With advanced HD (High-Definition) video conversion technology, Xilisoft HD Video Converter can easily convert among HD video formats, convert video to HD, convert HD videos to SD (Standard-Definition) videos. The HD video converter supports most of HD video formats such as AVCHD (mts, m2ts), H.264/AVC, MKV, MPEG-2 (ts), DivX, HD WMV, MPEG-4 and Quick Time.
4.iSkysoft Video Converter for Mac
iSkysoft Video Converter for Mac is a perfect mac video converting software which can convert various video and audio formats under Mac OS X system. No matter you want to convert MPEG, AVI, FLV, WMV, MOV, VOB, MP4, 3GP, Divx, Xvid, ASF, OGG, MP3, WAV, ect, iSkysoft Video Converter for Mac is your best choice. Othe editing functions supported as well such as trim, crop videos, and apply various video effects, join videos into one folder.
