Английская Википедия:DivX Plus HD

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Шаблон:Multiple issues Шаблон:Use dmy dates Шаблон:DivX DivX Plus HD, launched in 2009, is the brand name for the file type that DivX, Inc. has chosen for their high definition video format. DivX Plus HD files consist of high definition H.264/MPEG-4 AVC video with surround sound Advanced Audio Coding (AAC) audio, wrapped up in the open-standard Matroska container, identified by the .mkv file extension. DivX Plus HD files leverage and extend on Matroska's ability to support multiple language tracks, subtitles, chapters, and additional bonus content.

DivX Plus HD products

Software

Шаблон:Main

As of the release of DivX 7, DivX Plus HD support has been included in the main software bundle.

On 16 March 2010, DivX released DivX Plus Software (version 8) for Windows which included:[1]

  • DivX Plus Player – Play DivX 6 files (.avi and .divx with MP3 audio) and DivX Plus HD (.mkv with AAC audio)
    • DivX to Go – A device transfer wizard for moving videos to DivX devices via USB or optical disc
  • DivX Plus Converter – Creates .mkv files via the "DivX Plus HD" menu or converts .mkv to .divx
  • DivX Plus Web Player – Plays .mkv files with H.264 video and AAC audio on web pages inside a web browser.[2]
  • DivX Plus Codec PackDirectShow components for decoding and creating DivX and DivX Plus video files

DivX Plus HD Profile

DivX has defined profiles which are subsets of MPEG-4/AVI and H264/MKV standards. Because the grouping is a specific subset of what is in the standards, there are certification processes for each of the profiles that device manufacturers must follow. Below is the DivX Plus HD profile.[5]

All DivX Plus HD certified devices bearing a DivX Plus logo will adhere to the profile outlined in the table below, as would any tools that support the DivX profiles. DivX Plus HD devices are also tested for compliance against the DivX HD 1080p profile for MPEG4/AVI certification in order to maintain backwards compatibility[6]

Profile +HD 1080p
Codec MPEG4 part 10 (H.264)
File Extension(s) .mkv
Max. resolution (px×px×Hz) 1920×1080×30,

1280×720×60

Max VBV bitrate (bit/s) VCL: 20000000,

NAL: 24000000

Min. VBV buffer size (KiB) VCL: 3200, NAL: 3840
Macroblocks (per second) 244800
Subtitles 8×SRT
Audio 8×MP3, AC3, AAC

MKV Extensions

DivX has introduced additional features beyond the Matroska specification that are implemented during the video file creation process and exposed during playback in DivX Plus software and on consumer electronics devices certified for DivX Plus HD. Below are the standard and extended MKV features that are specific to the DivX Plus HD profile.[7][8]

World Fonts

Currently, font files can be easily attached to .mkv files using a Matroska mux,[9] but certain problems may arise when attempting to utilize a font during playback. Usually, performance is affected because the font file can be large and take time to load for the subtitles. The DivX Plus Word Fonts extension attempts to solve this problem by optimizing the font file during the file creation stage.[10] A DivX Plus mux, like the DivXMKVMux, can examine the subtitle file, determine which characters are required from a font file, and repack the font file for attachment with only the necessary symbols, thereby reducing the font attachment size and decreasing the time it needs to load.

Smooth FF/RW

DivX has released a specification for a DivX Plus extension that aims to improve seeking quickly through a video file, either forward or backward. Called Smooth FF/RW, the creator of the video creates a lower resolution version of the video that is attached to the .mkv file and leveraged whenever a user instructs their player to seek fast forward or rewind.[11] When the user presses fast forward or rewind, the full resolution track is swapped out with the lower resolution version, requiring less resources; when the user presses play, the lower resolution track is instantly swapped out to the full resolution version, which is intended to solve inaccurate seeking issues or a stuttering effect during fast forward and rewind.

Multi-title Play

Episodic content can be packaged into a single file.[12]

Authored and Auto-generated Chapters

Access to chapter points in a video when no chapter information exists.[12]

Quick Start

The format supports quick start where the user can begin viewing even large HD files immediately.[12]

Hardware

The following chips have been certified or have licensing agreements for DivX Plus HD:[13]

IC Provider Model Number Date Certified Type Notes
Broadcom BCM3556 Шаблон:Sort DTV
BCM3549 Шаблон:Sort
Mediatek MT8550TBAG Шаблон:Sort Blu-ray Disc player
MT8550UBAG Шаблон:Sort
MT8555DGBG Шаблон:Sort
MT8555DIBG Шаблон:Sort
MT8555DJBG Шаблон:Sort
MT8555DHBG Шаблон:Sort
OP8531 Шаблон:Sort
MT8653ACEG Шаблон:Sort
MT8652ACEG Шаблон:Sort
MT8555DDBG Шаблон:Sort
MT8555DCBG Шаблон:Sort
MT8555DEBG Шаблон:Sort
MT8555DFBG Шаблон:Sort
MT8550JBAG Шаблон:Sort
MT8530PEFG Шаблон:Sort MT8530 announced as first DivX Plus HD certified chip.[14]
MT8530MEFG Шаблон:Sort
MT8530KEFG Шаблон:Sort
MT8530JEFG Шаблон:Sort
MT8530AEFG Шаблон:Sort
Panasonic MN2WS0150D3 Шаблон:Sort Blu-ray Disc player UniPhier chips named in licensing agreement.[15]
MN2WS0150D2 Шаблон:Sort
MN2WS0140DFF1 Шаблон:Sort
MN2WS0141DFF Шаблон:Sort
Realtek RTD1073 Шаблон:Sort Digital multimedia processor
RTD1283 Шаблон:Sort

NEC Electronics has signed a multi-year licensing agreement to include DivX Plus HD in its EMMA chips.[16]

Consumer electronics

The following products have been DivX Plus HD Certified:[17][18]

OEM / ODM Model Number Date Certified Type Notes
Denon DBP-1611UD Шаблон:Sort Blu-ray Disc player
Marantz UD5005 Шаблон:Sort Blu-ray Disc player
Panasonic DMP-BDT100EE Шаблон:Sort Blu-ray Disc player
SC-BTT755EGK Шаблон:Sort
SC-BFT800EBK Шаблон:Sort
SC-BFT800EGK Шаблон:Sort
SC-BFT800GNK Шаблон:Sort
SC-BTT350EGK Шаблон:Sort
SC-BTT755EBK Шаблон:Sort
SC-BTT350EBK Шаблон:Sort
SC-BTT350GNK Шаблон:Sort
SC-BTT755GNK Шаблон:Sort
DMP-BDT100GN Шаблон:Sort
DMP-BDT300EG Шаблон:Sort The DMP-BDT300 has been DivX Plus HD Certified, and is Panasonic's first FullHD 3D Blu-ray Disc player.[19]
DMP-BDT300GN Шаблон:Sort
DMP-BDT300EE Шаблон:Sort
Philips BDP5180 Шаблон:Sort Blu-ray Disc player
BDP8000 Шаблон:Sort
BDP7500B2 Шаблон:Sort
BDP7500S2 Шаблон:Sort
BDP7500 MK II Шаблон:Sort
BDP8000 Шаблон:Sort
BDP5100 Шаблон:Sort
Soniq QPB302B Шаблон:Sort Blu-ray Disc player
Seagate FreeAgent GoFlex TV Шаблон:Sort Digital media receiver
Yamaha BD-S1067 Шаблон:Sort Blu-ray Disc player

x264 compatibility

According to documentation provided by DivX on their DivX Developer Portal, it is possible to make DivX Plus HD compatible files via other H.264 encoders, such as the open source x264 encoder.[20] At minimum, the following command line creates an H.264 bitstream within the DivX Plus HD profile:

x264 --vbv-maxrate=20000 --vbv-bufsize=25000 --level 40 --bframes 3 --keyint <4*FPS> -o <output file> <input file>

Despite the popular transcoding tool HandBrake dropping .avi container support, it can still be used to create DivX Plus compatible videos if MKV is selected for format, x264 is selected for video codec, AAC is used for audio codec, and the following options are passed into the advanced settings:[21]

level=40:ref=2:bframes=2:subq=6:mixed-refs=0:weightb=0:8x8dct=0:trellis=0:vbv-maxrate=20000:vbv-bufsize=25000:weightp=0

See also

References

Шаблон:Reflist

External links