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- Changes chronology
- ------------------
-
- 1.3 Release 14 March 1994
-
- Changes from 1.2 to 1.3
- -----------------------
- = BUG FIXES
- + deletes frame files when done with them in parallel version
- + fixed bug in ComputeFrameTable
- + completion time estimation now is closer to actual time
- + modified ComputeSNR to avoid overflow of varOrig
- + fixed bug that caused I/P/B times on HP's to be wrong
- + fixed bug that made TwoLevel search out of the search window
- + fixed bug in -quiet 0
- + fixed memory leak when using PNM files
- + fixed bug: crashed when CPU time was 0 (very rare)
- + fixed bug in -gop option
- + fixed bug in AppendFiles()
-
- = NEW FEATURES
- + added FORCE_ENCODE_LAST_FRAME option (allows encoding of all frames)
- + added PARALLEL_CHUNK_TAPER option
- + added -bit_rate_info option to show bit rate per frame
- + added -mv_histogram option to show motion vector histogram
- + custom quantization tables allowed
- + can specify frame rate, aspect ratio
-
- = SPEED IMPROVEMENTS
- + replaced most remaining binary multiplies/divides with shifts
- (except those concerning negative numbers)
-
- = MAINTENANCE
- + got rid of & before array warning in block.c
- + got rid of references to srandom, random in pbmplus.h
- + undefine 'index' if defined as 'strchr' (since we use index as
- variable name)
- + modified frame type code to be more flexible
-
- = PORTABILITY
- + replaced all bzero() calls with memset() calls
-
-
- 1.2 Release 20 October 1993
-
- Changes from 1.1 to 1.2
- -----------------------
- = BUG FIXES
- + allow comments in PPM files
- + first and last macroblocks in a slice may not be skipped macroblocks
- + fixed YUV bug: should be able to handle dimensions which
- aren't multiples of 16
- + fixed the separate I/O conversion for parallel NFS version
- + no_frame_summary can now be last option
-
- = NEW FEATURES
- + using DECODED frames as reference frames in parallel
- version now works
- + implemented multiple I/O Servers
- + FORCE_I_ALIGN added
- + reorganized Server structure slightly (only I/O Servers
- handle individual frame files on disk)
- + add option to allow exact division of frames per processor
- (PARALLEL_PERFECT)
-
- = SPEED IMPROVEMENTS
- + don't start Input server if not needed
-
- = MAINTENANCE
- + got rid of niceProcesses line in main.c
- + changed write() to SafeWrite() in parallel.c
- + commented stuff out after #endif's
- + fixed prototype warnings (eliminated non-4-byte args)
-
-
- 1.1 Release August 1993
-
- Changes from 1.0 to 1.1
- -----------------------
- = BUG FIXES
- + fixed bug in parallel Server code which didn't htonl() frame
- numbers correctly (so it didn't work on little-endian machines)
- + fixed bug -- B-frames were always getting just 1 slice
- + fixed listen() to use max connections allowed
- + fixed noparallel.c so it doesn't complain during non-parallel
- execution
-
- = NEW FEATURES
- + added level-2 p-search (exhaustive full, then half)
- + now prints signal-to-noise ratio
- + parallel code complains if absolute path not used for parameter
- file
- + changed single I/O server into separate Input and Output Servers
- (and have Output Server combine frames in parallel)
-
- = SPEED IMPROVEMENTS
- + slight improvement in Mpost_QuantZigBlock (.10 ms/call down to .08 ms
- on Sparc-10)
- + improvement in speed of BlockifyFrame (45.8 ms/call down to 21.2 ms)
- + improvement in ComputeMotionBlock (0.02 ms/call down to 0.01 ms)
- + improvement in ComputeMotionLumBlock (0.04 ms/call down to 0.02 ms)
- + improvement in LumAddMotionError (0.06 ms/call down to 0.05 ms)
- (changed /2 to >>1)
-
- = MAINTENANCE
- + removed most memory.h references (except jrevdct)
- + added CFLAGS lines in Makefile for SVR4.0 and SGI machines
- + removed mproto.h
- + got rid of printing connection times
-
-
- 1.0 Release July 1993
-