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256 lines
9.8 KiB
Plaintext
256 lines
9.8 KiB
Plaintext
libteora 1.2.0alpha1 (2010 September 23)
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- New 'ptalarbvorm' encoder with better rate/distortion optimization
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- New th_encode_ctl option for copying configuration from an existing
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setup header, useful for splicing streams.
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- Returns TH_DUPFRAME in more cases.
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- Add ARM optimizations
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- Add TI C64x+ DSP optimizations
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- Other performance improvements
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- Rename speedlevel 2 to 3 and provide a new speedlevel 2
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- Various minor bug fixes
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libtheora 1.1.2 (unreleased snapshot)
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- Fix Huffman table decoding with OC_HUFF_SLUSH is set to 0
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- Fix a frame size bug in player_example
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- Add support for passing a buffer the size of the picture
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region, rather than a full padded frame to th_encode_ycbcr_in()
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as was possible with the legacy pre-1.0 API.
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- 4:4:4 support in player_example using software yuv->rgb
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- Better rgb->yuv conversion in png2theora
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- Clean up warnings and local variables
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- Build and documentation fixes
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libtheora 1.1.1 (2009 October 1)
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- Fix problems with MSVC inline assembly
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- Add the missing encoder_disabled.c to the distribution
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- build updates: autogen.sh should work better after switching systems
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and the MSVC project now defaults to the dynamic runtime library
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- Namespace some variables to avoid conflicts on wince.
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libtheora 1.1.0 (2009 September 24)
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- Fix various small issues with the example and telemetry code
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- Fix handing a zero-byte packet as the first frame
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- Documentation cleanup
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- Two minor build fixes
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libtheora 1.1beta3 (2009 August 22)
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- Rate control fixes to smooth quality
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- MSVC build now exports all of the 1.0 api
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- Assorted small bug fixes
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libtheora 1.1beta2 (2009 August 12)
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- Fix a rate control problem with difficult input
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- Build fixes for OpenBSD and Apple Xcode
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- Examples now all use the 1.0 api
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- TH_ENCCTL_SET_SPLEVEL works again
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- Various bug fixes and source tree rearrangement
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libtheora 1.1beta1 (2009 August 5)
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- Support for two-pass encoding
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- Performance optimization of both encoder and decoder
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- Encoder supports dynamic adjustment of quality and
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bitrate targets
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- Encoder is generally more configurable, and all
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rate control modes perform better
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- Encoder now accepts 4:2:2 and 4:4:4 chroma sampling
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- Decoder telemetry output shows quantization choice
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and a breakdown of bitrate usage in the frame
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- MSVC assembly optimizations up to date and functional
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libtheora 1.1alpha2 (2009 May 26)
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- Reduce lambda for small quantizers.
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- New encoder fDCT does better on smooth gradients
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- Use SATD for mode decisions (1-2% bitrate reduction)
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- Assembly rewrite for new features and general speed up
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- Share code between the encoder and decoder for performance
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- Fix 4:2:2 decoding and telemetry
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- MSVC project files updated, but assembly is disabled.
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- New configure option --disable-spec to work around toolchain
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detection failures.
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- Limit symbol exports on MacOS X.
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- Port remaining unit tests from the 1.0 release.
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libtheora 1.1alpha1 (2009 March 27)
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- Encoder rewrite with much improved vbr quality/bitrate and
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better tracking of the target rate in cbr mode.
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- MSVC project files do not work in this release.
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libtheora 1.0 (2008 November 3)
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- Merge x86 assembly for forward DCT from Thusnelda branch.
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- Update 32 bit MMX with loop filter fix.
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- Check for an uninitialized state before dereferencing in propagating
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decode calls.
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- Remove all TH_DEBUG statements.
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- Rename the bitpacker source files copied from libogg to avoid
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confusing simple build systems using both libraries.
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- Declare bitfield entries to be explicitly signed for Solaris cc.
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- Set quantization parameters to default values when an empty buffer is
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passed with TH_ENCCTL_SET_QUANT_PARAMS.
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- Split encoder and decoder tests depending on configure settings.
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- Return lstylex.sty to the distribution.
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- Disable inline assembly on gcc versions prior to 3.1.
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- Remove extern references for OC_*_QUANT_MIN.
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- Make various data tables static const so they can be read-only.
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- Remove ENCCTL codes from the old encoder API.
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- Implement TH_ENCCTL_SET_KEYFRAME_FREQUENCY_FORCE ctl.
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- Fix segfault when exactly one of the width or height is not a multiple
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of 16, but the other is.
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- Compute the correct vertical offset for chroma.
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- cpuid assembly fix for MSVC.
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- Add VS2008 project files.
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- Build updates for 64-bit platforms, Mingw32, VS and XCode.
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- Do not clobber the cropping rectangle.
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- Declare ourselves 1.0final to pkg-config to sort after beta releases.
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- Fix the scons build to include asm in libtheoradec/enc.
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libtheora 1.0beta3 (2008 April 16)
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- Build new libtheoradec and libtheoraenc libraries
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supporting the new API from theora-exp. This API should
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not be considered stable yet.
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- Change granule_frame() to return an index as documented.
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This is a change of behaviour from 1.0beta1.
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- Document that granule_time() returns the end of the
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presentation interval.
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- Use a custom copy of the libogg bitpacker in the decoder
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to avoid function call overhead.
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- MMX code improved and ported to MSVC.
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- Fix a problem with the MMX code on SELinux.
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- Fix a problem with decoder quantizer initialization.
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- Fix a page queue problem with png2theora.
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- Improved robustness.
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- Updated VS2005 project files.
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- Dropped build support for Microsoft VS2003.
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- Dropped build support for the unreleased libogg2.
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- Added the specification to the autotools build.
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- Specification corrections.
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libtheora 1.0beta2 (2007 October 12)
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- Fix a crash bug on char-is-unsigned architectures (PowerPC)
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- Fix a buffer sizing issue that caused rare encoder crashes
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- Fix a buffer alignment issue
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- Build fixes for MingW32, MSVC
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- Improved format documentation.
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libtheora 1.0beta1 (2007 September 22)
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- Granulepos scheme modified to match other codecs. This bumps
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the bitstream revision to 3.2.1. Bitstreams marked 3.2.0 are
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handled correctly by this decoder. Older decoders will show
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a one frame sync error in the less noticeable direction.
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libtheora 1.0alpha8 (2007 September 18)
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- Switch to new spec compliant decoder from theora-exp branch.
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Written by Dr. Timothy Terriberry.
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- Add support to the encoder for using quantization settings
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provided by the application.
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- more assembly optimizations
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libtheora 1.0alpha7 (2006 June 20)
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- Enable mmx assembly by default
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- Avoid some relocations that caused problems on SELinux
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- Other build fixes
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- time testing mode (-f) for the dump_video example
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libtheora 1.0alpha6 (2006 May 30)
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* Merge theora-mmx simd acceleration (x86_32 and x86_64)
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* Major RTP payload specification update
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* Minor format specification updates
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* Fix some spurious calls to free() instead of _ogg_free()
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* Fix invalid array indexing in PixelLineSearch()
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* Improve robustness against invalid input
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* General warning cleanup
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* The offset_y member now means what every application thought it meant
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(offset from the top). This will mean some old files (those with a
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non-centered image created with a buggy encoder) will display differently.
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libtheora 1.0alpha5 (2005 August 20)
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* Fixed bitrate management bugs that caused popping and encode
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errors
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* Fixed a crash problem with the theora_state internals not
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being intialized properly.
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* new utility function:
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- theora_granule_shift()
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* dump_video example now makes YUV4MPEG files by default, so
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the results can be fed back to encoder_example and similar
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tools. The old behavior is restored through the '-r' switch.
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* ./configure now prints a summary
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* simple unit test of the comment api under 'make check'
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* misc code cleanup, warning and leak fixes
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libtheora 1.0alpha4 (2004 December 15)
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* first draft of the Theora I Format Specification
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* API documentation generated from theora.h with Doxygen
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* fix a double-update bug in the motion analysis
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* apply the loop filter before filling motion vector border
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in the reference frame
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* new utility functions:
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- theora_packet_isheader(),
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- theora_packet_iskeyframe()
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- theora_granule_frame()
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* optional support for building without floating point
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* optional support for building without encode support
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* various build and packaging fixes
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* pkg-config support
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* SymbianOS build support
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libtheora 1.0alpha3 (2004 March 20)
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UPDATE: on 2004 July 1 the Theora I bitstream format was frozen. Files
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produced by the libtheora 1.0alpha3 reference encoder will always be
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decodable by the Theora I spec.
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* Bitstream info header FORMAT CHANGES:
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- move the granulepos shift field to maintain byte alignment longer.
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- reserve 5 additional bits for subsampling and interlace flags.
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* Bitstream setup header FORMAT CHANGES:
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- support for a range of interpolated quant matricies.
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- include the in-loop block filter coeff.
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* Bitsteam data packet FORMAT CHANGES:
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- Reserve a bit for per-block Q index selection.
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- Flip the coded image orientation for compatibility with VP3.
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This allows lossless transcoding of VP3 content, but files
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encoded with earlier theora releases would play upside down.
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* example VP3 lossless transcoder
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* optional support for libogg2
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* timing improvements in the example player
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* packaging and build system updates and fixes
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libtheora 1.0alpha2 (2003 June 9)
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* bitstream FORMAT CHANGES:
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- store the quant tables in a third setup header for
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future encoder flexibility
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- store the huffman tables in the third setup header
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- add a field for marking the colorspace to the info header
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- add crop parameters for non-multiple-of-16 frame sizes
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- add a second vorbiscomment-style metadata header
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* API changes to handle multiple headers with a single
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theora_decode_header() call, like libvorbis
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* code cleanup and minor fixes
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* new dump_video code example/utility
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* experimental win32 code examples
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libtheora 1.0alpha1 (2002 September 25)
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* First release of the theora reference implementation
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* Port of the newly opened VP3 code to the Ogg container
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* Rewrite of the code for portability and to use the libogg bitpacker
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