MPEG2Repair 1.0.1.5

1.0.1.5 / 02-15-07:

• Added "bad-edit" detection to show inconsistent telecine flags.Use "IgnoreFieldRepeatFlagWarnings" ini setting to disable.
• Added "ReadBufferSize" and "WriteBufferSize" ini settings. Might improve file i/o performance if you're not CPU limited.
• Improved performance of initial PID scan on slow wireless networks.
• Added "FileWildcard" ini setting to allow custom input/output file extensions.
• Added limited H.264 video support.Only scans for Transport/PES header errors.
• Removed beta expiration date.Barring any major bugs, this is the final version of MPEG2Repair.Moving on to other projects...


1.0.1.4 / 08-13-06:
• Improved sequence summary with some additional info.
• Fixed crash on some rare corrupted AC3 frames.
• Added "Preserve_Existing_PSI" to ini file.Used to keep old PAT/PMT tables and any unselected programs.
• Added "ForceVideoPID","ForceAudioPID" to ini file. Used for cases where automatic detection fails.


1.0.1.3 / 02-15-06:
• Fixed bug causing false video timestamp gaps for progressive sequences with telecine flags.


1.0.1.2 / 02-11-06:
• Fixed bug causing corruption of slices when last error packet was followed by audio packet.
• Fixed false error detection when null packet stripping was enabled but repair was disabled.
• Improved PMT parsing to support additional DVB apps.
• Added AC3 audio information to file summary.
• Added average video bitrate information to summary. (excludes all padding/stuffing bytes)
• Added "IgnoreDMVWarnings" to ini file. Stops warnings when DMV usage is not treated as errors.
• Support for files lacking any PAT/PMT data. Used by some systems in Europe.
• Repair for 169time recordings that contain MP1 audio flagged as AC3.
• Fixed 'VerboseLogLevel' ini setting (broken in last build).


1.0.1.1 / 08-28-05:
• Fixed random crash when finding very large corrupted AC3 audio frames.
• Added INI setting 'MotionVectorGuardBand'. This allows ignoring motion vectors that are only slightly out of range. See readme.txt
• Added INI setting 'TreatDMVMotionAsError'. Set this to 0 if you get a lot of false DMV not supported errors. Mainly for VideoRedo users.


1.0.1.0 / 08-14-05:
• Added support for MPEG2 video in private streams (type 0x80). Used by Fusion3 Gold-QUAM.
• Corrupted AC3 bytes were reported 2 bytes larger. Should now exactly cover bytes to next AC3 frame.
• Estimated time remaining would be incorrect when resuming from long pause.
• Video timestamp gaps were reporting the file position of next GOP instead of previous GOP with error.
• Improved handling of repeated frames from bad cuts/edits. Will show as negative time gap.
• Report the temporal reference gap in addition to timestamp gap.
• Fixed crash on AC3 packets containing header with invalid sampling rate.
• Fixed crash on packets with invalid PES header length.
• DMV motion prediction now treated as warning until proper support is added to MPEG2Repair.
• Added INI setting 'LogFileExtension'. Used to control default log filename extension.
• Added INI setting 'PacketHistorySize'. If program crashes, check log to see if this needs changing.
• Added INI setting 'IgnoreTemporalReferenceWarnings'. Might need to enable this if you see lots of tiny gaps.


1.0.0.9 / 01-17-05:
• Expanded AC3 audio search of private streams (stream type 0x6) to any PID (not just 0x80).
• Added warning dialog box when overwriting existing log file.
• Now checks whether input file is a transport stream before trying to find PID's.
• Added check to make sure all 3 filenames are different.
• If program is minimized, it will restore when operation is finished.
• You can now pause the program by pressing the 'Cancel' button during repair/scan.
• Fixed bug that prevented finding PID values in files with single program but multiple video tracks.
• Added AC3 audio error detection. Repair will be added in a future version.
• Added detection of missing audio/video frames. Repair will be added in a future version.
• Log file summary now contains stats with amount of missing audio/video.
• Added default filenames for log/output files. No need to enter them every time.
• Added INI setting 'UseIdlePriority'. Set this to '1' to reduce CPU usage and improve multi-tasking.
• Added INI settings to disable new audio and timestamp checking features in case of unexpected trouble.
• Discontinuity errors now include an input file offset instead of a packet number.


1.0.0.7 / 11-11-04:
• Fixed blank error dialog boxes.
• Fixed crash when error log file could not be created.
• Fixed crash on certain corrupted slice headers.
• Added check/warning when there may not be enough disk space for output file.
• Input files that were not aligned on 188-byte packet boundary would report initial missing sync-byte.
• Sequence summary now tells you if file uses telecine flags. (ex. HBO_HD).
• Fixed bug where some repaired macroblock would have invalid dct_dc_size.


1.0.0.6 / 11-07-04:
• Added support for ProjectX exported files that have AC3 audio with stream type=0x06, PID=0x80.
• Added support for MPEG1 Audio with stream type = 0x3.
• Fixed FPS display at end of log for files using 23.976 fps.
• Replaced edit boxes with drop-down lists for audio/video tracks available in current program.
• Align first audio packet to payload start boundary.


1.0.0.5 / 10-29-04:
• Renamed 'Stop' button to 'Cancel' and added confirmation dialog box.
• Added minimize/close buttons to title bar and removed 'Exit' button.
• Added drop-down listbox for alternate program selection. No need to find program with external utilities.
• Added % complete and estimated time to completion. Display dialog box when finished.
• Changed to a slightly larger font to make it easier to use at high resolutions.
• Added VerboseLogLevel to INI file. You need to set this to 1 or higher to get full error details.
• Added readme file with some simple instructions and description of what this program does.
• MBA values in error logs are now followed by pixel coordinates in (x,y) format.
• Frame Numbers in error logs are now followed by temporal reference and picture coding type (I,P,B).
• Fixed problem finding PID values when stream contained Program with PMT_PID 0x1fff.


1.0.0.4 / 10-16-04:
• Fixed bug where program would loop forever on the last corrupted frame of certain files.
• Default program number is now first program found. Old version used last program found.


1.0.0.3 / 10-09-04:
• Improved accuracy of timestamps (perfect match to Womble tools). Errors now also include a file position.
• Fixed some crashing issues. It should now display an error dialog box and abort processing file.
• Fixed bug when repairing packets that were split as a result of missing payload_unit_start_indicator.
• Fixed lost PCR packets when they were not using the video PID.
• Added support for AAC audio. Should now be preserved in repaired file.
• Fixed first video packet being lost on repaired streams where video was not using PID 0x11.
• Extended search for lost sync bytes to rest of file. Previous version would stop looking after 2048 bytes.
• Continuity errors in video PID were not being fixed when PCR was on a different PID.
• Slices were sometimes not byte aligned on I-Pictures with sequential corrupted slices.
• Remove transport packets with transport_error_indicator flag.
• Remove transport packets with adaptation_field_control set to 0.
• Shifting of audio packets is now disabled by default (can be enabled via INI file).
• Changed to static linking of VC 7.1 Libraries. Program should no longer require any additional DLL files.
• Added overrides for program number and audio/video sub-channels. Might be useful for some OTA files.
• Improved error detection speed by 30%.


1.0.0.2 / 09-21-04:
• Fixed error dialog box text.
• Added support for testing TS files without audio. Should also work for unsupported audio formats like AAC. Please ignore missing PID warning.
• Added support for MPEG2 encoded with multiple slices per row. Should now work on more OTA recordings.
• Improved recovery for transport files with corrupted packet sync bytes.
• Added extra output file overwrite warning dialog.
• Check motion vectors for out-of-bounds references and wrong frame_motion_type. DMV motion compensation assumed invalid for now.
• Check for skipped macroblocks in I-Pictures and following intra-coded macroblocks on B-Pictures.
• Fixed loading of segmented transport files that were cut on non-packet-aligned boundary.
• Corrupted macroblocks are now either skipped (if allowed based on location) or replaced with black colored intra-coded macroblocks.
• Replace transport PAT/PMT with defaults that have video on PID=0x11 and AC3 Audio on PID=0x14.
• Unused corrupted payload bytes now get padded with 0's instead of being removed with adaptation field stuffing bytes.
• Added mpeg2repair.ini file for options.
• Null packet stripping now defaults to disabled. See the ini file if you need to use it.
• Macroblock repair can be disabled in ini file. May look better on decoders good at error handling like the JVC 30K, etc.
• Log now contains summary with total corrupted bytes and total corrupted frames. Good for comparing recordings.
• Added repair of files that don't use the payload_unit_start_indicator flag (ex. old TNT_HD on Dish and some OTA stations).
• Check for extra slices/macroblocks after last picture slice.
• Check and repair of repeated packets with adaptation field only (no payload). These are common on some cable boxes and cause false continuity errors in TSReader, etc.


1.0.0.1 / 09-04-04:
• First public release.