MPEG-4 | MPEG-2 | MPEG | MPEG transport stream | MPEG-4 Part 14 | MPEG-1 Audio Layer II | MPEG-1 | H.264/MPEG-4 AVC | MPEG Multichannel |
DVB-S MPEG 2: Hot Bird 6 (12597 MHz, Vertical, 3/4, VPID 2000, APID 2002/2001) Encrypted (Cryptoworks and Conax).
DirecTV-10 transmits MPEG-4 encoded signals, a compression standard which is more efficient than MPEG-2 which DirecTV uses for standard definition and a small number of HD channels.
Those first channels were MPEG-4 counterparts of the older MPEG-2 channels DirecTV originally carried in the 70-79 channel range as well as four east coast distant network channels.
Video codecs such as MPEG-2, H.264 or Ogg Theora reduce the amount of data in a stream by following key frames with one or more inter frames.
The remaining two channels are aboard the SES Americoms AMC-3 Satellite located at 87° west longitude and utilizes a DVB MPEG-2 Compliant technology.
.m2ts, a filename extension used for the BDAV MPEG-2 Transport Stream, defined by Blu-ray Disc Association
The ground station's recorder can store up to twenty hours of high-quality MPEG-2 format video which can then be transferred to DVD or Macromedia Flash.
Images, video, and sound files in a range of formats can be done natively, with more additional capabilities supplied by the optional AVbin plugin, which uses the Libav package to provide support for audio formats including MP3, Ogg/Vorbis, and Windows Media Audio, and video formats such as DivX, MPEG-2, H.264, WMV, and XviD.
To reduce the data rate without significantly reducing quality, the size of the GOP can be increased, the maximum data rate can be exceeded, and a different MPEG-2 quantization matrix can be used.