1 libtheora 1.0beta3 (unreleased)
3 - Build new libtheoradec and libtheoraenc libraries
4 supporting the new API from theora-exp.
5 - Change granule_frame() to return an index as documented.
6 This is a change of behaviour from 1.0beta1.
7 - Document that granule_time() returns the end of the
9 - Fix a problem with decoder quantizer initialization
10 - Fix a page queue problem with png2theora.
11 - Dropped build support for Microsoft VS2003.
12 - Added the specification to the autotools build.
13 - Specification corrections.
15 libtheora 1.0beta2 (2007 October 12)
17 - Fix a crash bug on char-is-unsigned architectures (PowerPC)
18 - Fix a buffer sizing issue that caused rare encoder crashes
19 - Fix a buffer alignment issue
20 - Build fixes for MingW32, MSVC
21 - Improved format documentation.
23 libtheora 1.0beta1 (2007 September 22)
25 - Granulepos scheme modified to match other codecs. This bumps
26 the bitstream revision to 3.2.1. Bitstreams marked 3.2.0 are
27 handled correctly by this decoder. Older decoders will show
28 a one frame sync error in the less noticable direction.
30 libtheora 1.0alpha8 (2007 September 18)
32 - Switch to new spec compliant decoder from theora-exp branch.
33 Written by Dr. Timothy Terriberry.
34 - Add support to the encoder for using quantization settings
35 provided by the application.
36 - more assembly optimizations
38 libtheora 1.0alpha7 (2006 June 20)
40 - Enable mmx assembly by default
41 - Avoid some relocations that caused problems on SELinux
43 - time testing mode (-f) for the dump_video example
45 libtheora 1.0alpha6 (2006 May 30)
47 * Merge theora-mmx simd acceleration (x86_32 and x86_64)
48 * Major RTP payload specification update
49 * Minor format specification updates
50 * Fix some spurious calls to free() instead of _ogg_free()
51 * Fix invalid array indexing in PixelLineSearch()
52 * Improve robustness against invalid input
53 * General warning cleanup
54 * The offset_y member now means what every application thought it meant
55 (offset from the top). This will mean some old files (those with a
56 non-centered image created with a buggy encoder) will display differently.
58 libtheora 1.0alpha5 (2005 August 20)
60 * Fixed bitrate management bugs that caused popping and encode
62 * Fixed a crash problem with the theora_state internals not
63 being intialized properly.
64 * new utility function:
65 - theora_granule_shift()
66 * dump_video example now makes YUV4MPEG files by default, so
67 the results can be fed back to encoder_example and similar
68 tools. The old behavior is restored through the '-r' switch.
69 * ./configure now prints a summary
70 * simple unit test of the comment api under 'make check'
71 * misc code cleanup, warning and leak fixes
73 libtheora 1.0alpha4 (2004 December 15)
75 * first draft of the Theora I Format Specification
76 * API documentation generated from theora.h with Doxygen
77 * fix a double-update bug in the motion analysis
78 * apply the loop filter before filling motion vector border
79 in the reference frame
80 * new utility functions:
81 - theora_packet_isheader(),
82 - theora_packet_iskeyframe()
83 - theora_granule_frame()
84 * optional support for building without floating point
85 * optional support for building without encode support
86 * various build and packaging fixes
88 * SymbianOS build support
90 libtheora 1.0alpha3 (2004 March 20)
92 UPDATE: on 2004 July 1 the Theora I bitstream format was frozen. Files
93 produced by the libtheora 1.0alpha3 reference encoder will always be
94 decodable by the Theora I spec.
96 * Bitstream info header FORMAT CHANGES:
97 - move the granulepos shift field to maintain byte alignment longer.
98 - reserve 5 additional bits for subsampling and interlace flags.
99 * Bitstream setup header FORMAT CHANGES:
100 - support for a range of interpolated quant matricies.
101 - include the in-loop block filter coeff.
102 * Bitsteam data packet FORMAT CHANGES:
103 - Reserve a bit for per-block Q index selection.
104 - Flip the coded image orientation for compatibility with VP3.
105 This allows lossless transcoding of VP3 content, but files
106 encoded with earlier theora releases would play upside down.
107 * example VP3 lossless transcoder
108 * optional support for libogg2
109 * timing improvements in the example player
110 * packaging and build system updates and fixes
112 libtheora 1.0alpha2 (2003 June 9)
114 * bitstream FORMAT CHANGES:
115 - store the quant tables in a third setup header for
116 future encoder flexibility
117 - store the huffman tables in the third setup header
118 - add a field for marking the colorspace to the info header
119 - add crop parameters for non-multiple-of-16 frame sizes
120 - add a second vorbiscomment-style metadata header
121 * API changes to handle multiple headers with a single
122 theora_decode_header() call, like libvorbis
123 * code cleanup and minor fixes
124 * new dump_video code example/utility
125 * experimental win32 code examples
127 libtheora 1.0alpha1 (2002 September 25)
129 * First release of the theora reference implementation
130 * Port of the newly opened VP3 code to the Ogg container
131 * Rewrite of the code for portability and to use the libogg bitpacker