HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder.
Supported sources:
- Any DVD-like source: VIDEO_TS folder, DVD image or real DVD
(unencrypted--protection methods including CSS are not supported
internally and must be handled externally with third-party software and
libraries), and some .VOB and .TS files
- Most any multimedia file it can get libavformat to read and libavcodec to decode.
Outputs:
- File format: MP4, MKV, AVI or OGM
- Video: MPEG-4, H.264, or Theora (1 or 2 passes or constant quantizer/rate encoding)
- Audio: AAC, MP3, Vorbis or AC-3 pass-through (supports encoding of several audio tracks)
Misc features:
- Chapter selection
- Basic subtitle support (burned into the picture)
- Integrated bitrate calculator
- Picture deinterlacing, cropping and scaling
- Grayscale encoding
What's new:Universal inputHandBrake is no longer limited to DVDs: it will now accept
practically any type of video as a source. This massive enhancement was
achieved by tapping into the power of libavcodec and libavformat from
the FFmpeg project.
Video qualityThe x264 project has really come into its own this year, and
HandBrake 0.9.3 integrates the latest improvements to the H.264
encoding library. Picture quality has enhanced dramatically through the
use of psychovisual rate distortion and adaptive quantization, and
there have been significant speed optimizations.
Audio flexibilityHandBrake now offers total control over multiple audio tracks.
No more internal DVD decryptionYeah, we know, no one reading this is going "Oh wow, no more DVD decryption--what a great new feature!" but...deal.HandBrake will dynamically load VLC's copy of libdvdcss if you have
it in your Applications folder in Mac OS X, and if you're on Linux, and
you want to live on the wild side, you can install libdvdcss on your
system and get the same effect.
Persistent queuesWhen queueing up a bunch of videos to encode, you need no longer
fear a crash in HandBrake's graphical interfaces. Queued jobs are
cached to disk for safekeeping between sessions.
New, better organized presets (Be sure to run "Update Built-In Presets" from the Presets menu!)The presets are now "nested" in folders and have evolved. Notably,
there is a new Apple "Universal" preset, designed to play and look good
doing so on anything from an iPod Nano to an AppleTV.
There have been many changes to most of them. Please be aware that
most presets now use different settings. This means most of them are
not suited for benchmarking 0.9.3 against 0.9.2. For example, the
AppleTV preset is slower because it is now quality based, and produces
much more efficient output. The Normal preset uses psychovisual rate
distortion. The High Profile presets use psychovisual trellising. All
of these setting changes can influence encoding time and output file
size.
For comparison purposes, there are several presets in the
Apple->Legacy folder (the old iPod High-Rez, the old AppleTV, and
the old iPhone presets) which remain unchanged since 0.9.2.
Audio-video synchronizationHandBrake should now keep lip-synch as well as a DVD player can.
Decomb filterHandBrake now offers a decomb filter, in the style of AviSynth's. It
is a deinterlacer that can be left on all the time without degrading
picture quality, because it only deinterlaces video when it visibly
needs to be.
Multi-threaded deinterlacingThe "Slow" and "Slower" filters, as well as the new decomb filter,
will now take advantage of as many processors as you can throw at them.
"Same as source framerate" really is the same as the source framerateHandBrake now, by default, passes through the exact video framerate
of the source instead of smoothing to a constant rate, which could lead
to frames being duplicated or dropped.
Theora video encodingHandBrake now can encode video using the Theora codec.
Updated librariesBesides x264, updated libraries include libsamplerate, libogg,
xvidcore, libmpeg2, lame, faac, and ffmpeg's libavcodec, libavformat,
and libswscale.
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