1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libtheora/CHANGES Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,255 @@
1.4 +libteora 1.2.0alpha1 (2010 September 23)
1.5 +
1.6 +- New 'ptalarbvorm' encoder with better rate/distortion optimization
1.7 +- New th_encode_ctl option for copying configuration from an existing
1.8 + setup header, useful for splicing streams.
1.9 +- Returns TH_DUPFRAME in more cases.
1.10 +- Add ARM optimizations
1.11 +- Add TI C64x+ DSP optimizations
1.12 +- Other performance improvements
1.13 +- Rename speedlevel 2 to 3 and provide a new speedlevel 2
1.14 +- Various minor bug fixes
1.15 +
1.16 +libtheora 1.1.2 (unreleased snapshot)
1.17 +
1.18 + - Fix Huffman table decoding with OC_HUFF_SLUSH is set to 0
1.19 + - Fix a frame size bug in player_example
1.20 + - Add support for passing a buffer the size of the picture
1.21 + region, rather than a full padded frame to th_encode_ycbcr_in()
1.22 + as was possible with the legacy pre-1.0 API.
1.23 + - 4:4:4 support in player_example using software yuv->rgb
1.24 + - Better rgb->yuv conversion in png2theora
1.25 + - Clean up warnings and local variables
1.26 + - Build and documentation fixes
1.27 +
1.28 +libtheora 1.1.1 (2009 October 1)
1.29 +
1.30 + - Fix problems with MSVC inline assembly
1.31 + - Add the missing encoder_disabled.c to the distribution
1.32 + - build updates: autogen.sh should work better after switching systems
1.33 + and the MSVC project now defaults to the dynamic runtime library
1.34 + - Namespace some variables to avoid conflicts on wince.
1.35 +
1.36 +libtheora 1.1.0 (2009 September 24)
1.37 +
1.38 + - Fix various small issues with the example and telemetry code
1.39 + - Fix handing a zero-byte packet as the first frame
1.40 + - Documentation cleanup
1.41 + - Two minor build fixes
1.42 +
1.43 +libtheora 1.1beta3 (2009 August 22)
1.44 +
1.45 + - Rate control fixes to smooth quality
1.46 + - MSVC build now exports all of the 1.0 api
1.47 + - Assorted small bug fixes
1.48 +
1.49 +libtheora 1.1beta2 (2009 August 12)
1.50 +
1.51 + - Fix a rate control problem with difficult input
1.52 + - Build fixes for OpenBSD and Apple Xcode
1.53 + - Examples now all use the 1.0 api
1.54 + - TH_ENCCTL_SET_SPLEVEL works again
1.55 + - Various bug fixes and source tree rearrangement
1.56 +
1.57 +libtheora 1.1beta1 (2009 August 5)
1.58 +
1.59 + - Support for two-pass encoding
1.60 + - Performance optimization of both encoder and decoder
1.61 + - Encoder supports dynamic adjustment of quality and
1.62 + bitrate targets
1.63 + - Encoder is generally more configurable, and all
1.64 + rate control modes perform better
1.65 + - Encoder now accepts 4:2:2 and 4:4:4 chroma sampling
1.66 + - Decoder telemetry output shows quantization choice
1.67 + and a breakdown of bitrate usage in the frame
1.68 + - MSVC assembly optimizations up to date and functional
1.69 +
1.70 +libtheora 1.1alpha2 (2009 May 26)
1.71 +
1.72 + - Reduce lambda for small quantizers.
1.73 + - New encoder fDCT does better on smooth gradients
1.74 + - Use SATD for mode decisions (1-2% bitrate reduction)
1.75 + - Assembly rewrite for new features and general speed up
1.76 + - Share code between the encoder and decoder for performance
1.77 + - Fix 4:2:2 decoding and telemetry
1.78 + - MSVC project files updated, but assembly is disabled.
1.79 + - New configure option --disable-spec to work around toolchain
1.80 + detection failures.
1.81 + - Limit symbol exports on MacOS X.
1.82 + - Port remaining unit tests from the 1.0 release.
1.83 +
1.84 +libtheora 1.1alpha1 (2009 March 27)
1.85 +
1.86 + - Encoder rewrite with much improved vbr quality/bitrate and
1.87 + better tracking of the target rate in cbr mode.
1.88 + - MSVC project files do not work in this release.
1.89 +
1.90 +libtheora 1.0 (2008 November 3)
1.91 +
1.92 + - Merge x86 assembly for forward DCT from Thusnelda branch.
1.93 + - Update 32 bit MMX with loop filter fix.
1.94 + - Check for an uninitialized state before dereferencing in propagating
1.95 + decode calls.
1.96 + - Remove all TH_DEBUG statements.
1.97 + - Rename the bitpacker source files copied from libogg to avoid
1.98 + confusing simple build systems using both libraries.
1.99 + - Declare bitfield entries to be explicitly signed for Solaris cc.
1.100 + - Set quantization parameters to default values when an empty buffer is
1.101 + passed with TH_ENCCTL_SET_QUANT_PARAMS.
1.102 + - Split encoder and decoder tests depending on configure settings.
1.103 + - Return lstylex.sty to the distribution.
1.104 + - Disable inline assembly on gcc versions prior to 3.1.
1.105 + - Remove extern references for OC_*_QUANT_MIN.
1.106 + - Make various data tables static const so they can be read-only.
1.107 + - Remove ENCCTL codes from the old encoder API.
1.108 + - Implement TH_ENCCTL_SET_KEYFRAME_FREQUENCY_FORCE ctl.
1.109 + - Fix segfault when exactly one of the width or height is not a multiple
1.110 + of 16, but the other is.
1.111 + - Compute the correct vertical offset for chroma.
1.112 + - cpuid assembly fix for MSVC.
1.113 + - Add VS2008 project files.
1.114 + - Build updates for 64-bit platforms, Mingw32, VS and XCode.
1.115 + - Do not clobber the cropping rectangle.
1.116 + - Declare ourselves 1.0final to pkg-config to sort after beta releases.
1.117 + - Fix the scons build to include asm in libtheoradec/enc.
1.118 +
1.119 +libtheora 1.0beta3 (2008 April 16)
1.120 +
1.121 + - Build new libtheoradec and libtheoraenc libraries
1.122 + supporting the new API from theora-exp. This API should
1.123 + not be considered stable yet.
1.124 + - Change granule_frame() to return an index as documented.
1.125 + This is a change of behaviour from 1.0beta1.
1.126 + - Document that granule_time() returns the end of the
1.127 + presentation interval.
1.128 + - Use a custom copy of the libogg bitpacker in the decoder
1.129 + to avoid function call overhead.
1.130 + - MMX code improved and ported to MSVC.
1.131 + - Fix a problem with the MMX code on SELinux.
1.132 + - Fix a problem with decoder quantizer initialization.
1.133 + - Fix a page queue problem with png2theora.
1.134 + - Improved robustness.
1.135 + - Updated VS2005 project files.
1.136 + - Dropped build support for Microsoft VS2003.
1.137 + - Dropped build support for the unreleased libogg2.
1.138 + - Added the specification to the autotools build.
1.139 + - Specification corrections.
1.140 +
1.141 +libtheora 1.0beta2 (2007 October 12)
1.142 +
1.143 + - Fix a crash bug on char-is-unsigned architectures (PowerPC)
1.144 + - Fix a buffer sizing issue that caused rare encoder crashes
1.145 + - Fix a buffer alignment issue
1.146 + - Build fixes for MingW32, MSVC
1.147 + - Improved format documentation.
1.148 +
1.149 +libtheora 1.0beta1 (2007 September 22)
1.150 +
1.151 + - Granulepos scheme modified to match other codecs. This bumps
1.152 + the bitstream revision to 3.2.1. Bitstreams marked 3.2.0 are
1.153 + handled correctly by this decoder. Older decoders will show
1.154 + a one frame sync error in the less noticeable direction.
1.155 +
1.156 +libtheora 1.0alpha8 (2007 September 18)
1.157 +
1.158 + - Switch to new spec compliant decoder from theora-exp branch.
1.159 + Written by Dr. Timothy Terriberry.
1.160 + - Add support to the encoder for using quantization settings
1.161 + provided by the application.
1.162 + - more assembly optimizations
1.163 +
1.164 +libtheora 1.0alpha7 (2006 June 20)
1.165 +
1.166 + - Enable mmx assembly by default
1.167 + - Avoid some relocations that caused problems on SELinux
1.168 + - Other build fixes
1.169 + - time testing mode (-f) for the dump_video example
1.170 +
1.171 +libtheora 1.0alpha6 (2006 May 30)
1.172 +
1.173 + * Merge theora-mmx simd acceleration (x86_32 and x86_64)
1.174 + * Major RTP payload specification update
1.175 + * Minor format specification updates
1.176 + * Fix some spurious calls to free() instead of _ogg_free()
1.177 + * Fix invalid array indexing in PixelLineSearch()
1.178 + * Improve robustness against invalid input
1.179 + * General warning cleanup
1.180 + * The offset_y member now means what every application thought it meant
1.181 + (offset from the top). This will mean some old files (those with a
1.182 + non-centered image created with a buggy encoder) will display differently.
1.183 +
1.184 +libtheora 1.0alpha5 (2005 August 20)
1.185 +
1.186 + * Fixed bitrate management bugs that caused popping and encode
1.187 + errors
1.188 + * Fixed a crash problem with the theora_state internals not
1.189 + being intialized properly.
1.190 + * new utility function:
1.191 + - theora_granule_shift()
1.192 + * dump_video example now makes YUV4MPEG files by default, so
1.193 + the results can be fed back to encoder_example and similar
1.194 + tools. The old behavior is restored through the '-r' switch.
1.195 + * ./configure now prints a summary
1.196 + * simple unit test of the comment api under 'make check'
1.197 + * misc code cleanup, warning and leak fixes
1.198 +
1.199 +libtheora 1.0alpha4 (2004 December 15)
1.200 +
1.201 + * first draft of the Theora I Format Specification
1.202 + * API documentation generated from theora.h with Doxygen
1.203 + * fix a double-update bug in the motion analysis
1.204 + * apply the loop filter before filling motion vector border
1.205 + in the reference frame
1.206 + * new utility functions:
1.207 + - theora_packet_isheader(),
1.208 + - theora_packet_iskeyframe()
1.209 + - theora_granule_frame()
1.210 + * optional support for building without floating point
1.211 + * optional support for building without encode support
1.212 + * various build and packaging fixes
1.213 + * pkg-config support
1.214 + * SymbianOS build support
1.215 +
1.216 +libtheora 1.0alpha3 (2004 March 20)
1.217 +
1.218 + UPDATE: on 2004 July 1 the Theora I bitstream format was frozen. Files
1.219 + produced by the libtheora 1.0alpha3 reference encoder will always be
1.220 + decodable by the Theora I spec.
1.221 +
1.222 + * Bitstream info header FORMAT CHANGES:
1.223 + - move the granulepos shift field to maintain byte alignment longer.
1.224 + - reserve 5 additional bits for subsampling and interlace flags.
1.225 + * Bitstream setup header FORMAT CHANGES:
1.226 + - support for a range of interpolated quant matricies.
1.227 + - include the in-loop block filter coeff.
1.228 + * Bitsteam data packet FORMAT CHANGES:
1.229 + - Reserve a bit for per-block Q index selection.
1.230 + - Flip the coded image orientation for compatibility with VP3.
1.231 + This allows lossless transcoding of VP3 content, but files
1.232 + encoded with earlier theora releases would play upside down.
1.233 + * example VP3 lossless transcoder
1.234 + * optional support for libogg2
1.235 + * timing improvements in the example player
1.236 + * packaging and build system updates and fixes
1.237 +
1.238 +libtheora 1.0alpha2 (2003 June 9)
1.239 +
1.240 + * bitstream FORMAT CHANGES:
1.241 + - store the quant tables in a third setup header for
1.242 + future encoder flexibility
1.243 + - store the huffman tables in the third setup header
1.244 + - add a field for marking the colorspace to the info header
1.245 + - add crop parameters for non-multiple-of-16 frame sizes
1.246 + - add a second vorbiscomment-style metadata header
1.247 + * API changes to handle multiple headers with a single
1.248 + theora_decode_header() call, like libvorbis
1.249 + * code cleanup and minor fixes
1.250 + * new dump_video code example/utility
1.251 + * experimental win32 code examples
1.252 +
1.253 +libtheora 1.0alpha1 (2002 September 25)
1.254 +
1.255 + * First release of the theora reference implementation
1.256 + * Port of the newly opened VP3 code to the Ogg container
1.257 + * Rewrite of the code for portability and to use the libogg bitpacker
1.258 +
