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