[MEncoder-users] can someone tell me what "Format settings, ReFrames : 2 frames" means?

[U. George]

On 06/22/2010 10:58 AM, Andy Furniss wrote:
> bash-3.2$ mediainfo 00000.MTS

NEAT little toy!

can someone tell me what "Format settings, ReFrames : 2 frames" means?


> [gat at MyLaptop mplayer]$ mediainfo /home/gat/DIESEL/TEST_FP24/PF24_30Seconds.MTS
> General
> ID                               : 0
> Complete name                    : /home/gat/DIESEL/TEST_FP24/PF24_30Seconds.MTS
> Format                           : BDAV
> Format/Info                      : Blu-ray Video
> File size                        : 87.5 MiB
> Duration                         : 30s 510ms
> Overall bit rate                 : 24.1 Mbps
> Maximum Overall bit rate         : 24.0 Mbps
>
> Video
> ID                               : 4113 (0x1011)
> Menu ID                          : 1 (0x1)
> Format                           : AVC
> Format/Info                      : Advanced Video Codec
> Format profile                   : High at L4.0
> Format settings, CABAC           : Yes
> Format settings, ReFrames        : 2 frames
> Duration                         : 30s 397ms
> Bit rate mode                    : Variable
> Bit rate                         : 22.8 Mbps
> Maximum bit rate                 : 22.7 Mbps
> Width                            : 1 920 pixels
> Height                           : 1 080 pixels
> Display aspect ratio             : 16:9
> Frame rate                       : 29.970 fps
> Color space                      : YUV
> Chroma subsampling               : 4:2:0
> Bit depth                        : 8 bits
> Scan type                        : Interlaced
> Scan order                       : Top Field First
> Bits/(Pixel*Frame)               : 0.367
> Stream size                      : 82.8 MiB (95%)