H.264/AVC Video Decoder: Release Notes

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		+	=== 2.7.6.0 - Nov 21, 2023 ===
		+
		+	* Fixed handling of the last received DirectShow sample when calling IBaseFilter::Stop().
		+	* Upgraded to IPP 2021.10 from OneAPI 2024.0.1.
		+
		+	=== 2.7.6.0 - Nov 21, 2023 ===
		+
		+	* Fixed a bug in decoding PCM macroblocks.
		+
		+	=== 2.7.5.0 - Sep 20, 2023 ===
		+
		+	* Fixed an error in parsing some MPEG-2 TS files.
		+	* Algorithm for handle time stamps was corrected.
		+	* Corrected "About" property page.
		+	* Upgraded to IPP 2021.8 from OneAPI 2023.1.0.
		+	* The project has been updated in accordance with cumulative changes in the base libraries.
		+
		+	=== 2.7.4.0 - Feb 15, 2021 ===
		+
		+	* Added frame dropping algorithm for UHD/4K streams with Long GOP encoding (skipping B and P frames depending on CPU speed).
		+	* Fixed issue with timestamps for open GOP sequences.
		+
		+	=== 2.7.3.0 - Dec 23, 2020 ===
		+
		+	* For UHD/4K video streams, a frame dropping algorithm has been added (used if the decoding speed is not enough).
		+
		+	=== 2.7.2.0 - Oct 27, 2020 ===
		+
		+	* Fixed bug with data loss (and bitstream exiting) at the end of the NAL Unit.
		+	* Corrected the base class of the output pin.
		+	* Upgraded to IPP 2020.2
		+
		+	=== 2.7.1.0 - Mar 28, 2019 ===
		+
		+	* Fixed bug with incorrect end of slice checking.
		+	* Corrected C++ and C# samples.
		+
	=== 2.7.0.0 - Mar 11, 2019 ===		=== 2.7.0.0 - Mar 11, 2019 ===

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Latest revision as of 18:28, 29 December 2023

This page is a copy of the original page on the AVObjects' web site and can also be viewed here.

2.7.6.0 - Nov 21, 2023

• Fixed handling of the last received DirectShow sample when calling IBaseFilter::Stop().
• Upgraded to IPP 2021.10 from OneAPI 2024.0.1.

2.7.6.0 - Nov 21, 2023

• Fixed a bug in decoding PCM macroblocks.

2.7.5.0 - Sep 20, 2023

• Fixed an error in parsing some MPEG-2 TS files.
• Algorithm for handle time stamps was corrected.
• Corrected "About" property page.
• Upgraded to IPP 2021.8 from OneAPI 2023.1.0.
• The project has been updated in accordance with cumulative changes in the base libraries.

2.7.4.0 - Feb 15, 2021

• Added frame dropping algorithm for UHD/4K streams with Long GOP encoding (skipping B and P frames depending on CPU speed).
• Fixed issue with timestamps for open GOP sequences.

2.7.3.0 - Dec 23, 2020

• For UHD/4K video streams, a frame dropping algorithm has been added (used if the decoding speed is not enough).

2.7.2.0 - Oct 27, 2020

• Fixed bug with data loss (and bitstream exiting) at the end of the NAL Unit.
• Corrected the base class of the output pin.
• Upgraded to IPP 2020.2

2.7.1.0 - Mar 28, 2019

• Fixed bug with incorrect end of slice checking.
• Corrected C++ and C# samples.

2.7.0.0 - Mar 11, 2019

• Fixed problem with skipped frames at the end of the stream.
• Fixed problems with access_unit_delimiter NAL Unit.
• Fixed problems with 4:4:4 color space (chroma_format_idc = 3).
• Fixed preferable output color spaces for 4:2:0, 4:2:2 and 4:4:4 formats.
• Upgraded to IPP 2019.2
• The project was recompiled with VS2015, fixed compilation errors and warnings.
• The compilation options for VS2015 are selected to install the filter also in Windows XP (v140_xp).
• Corrected protection system (cumulative corrections).
• Added code signing certificate.
• Added interface IAVVersion for obtain filter's type (Debug/Release), version, compilation date/time, etc.

2.6.3.0 - Oct 21, 2015

• Fixed 4K (3840x2160) decoding.

2.6.2.0 - Feb 05, 2015

• Fixed invalid 16->8 conversion.
• Removed invalid notification of Graph Manager.
• Activated the internal Taggant System to fight against antivirus false positives in protected applications.

2.6.1.0 - Oct 23, 2014

• Corrected output media type: FPS from input media type is used as output (instead FPS from H264 header).

2.6.0.0 - Oct 21, 2014

• Upgraded to IPP 8.2.0.
• Fixed invalid aspect ratio for Panasonic P2 AVC-INTRA 1440x1080 streams.
• Added methods for set and get number of threads used for decoding.
• Added default value for number of work threads AVO_DEFAULT_NUM_THREADS = 4.
• Corrected property page and C++/C# sample applications.

2.5.6.0 - Apr 21, 2014

• Corrected splitting of input stream on NAL Units.
• Default output color space for 4:2:0 chroma format (if "Force original chroma format" selected) changed to NV12.

2.5.5.0 - Jan 22, 2014

• Fixed function for change MERIT_VALUE of filter

2.5.4.0 - Jan 20, 2014

• Fixed function for change MERIT_VALUE of filter
• Added code for registration customer specific CLSIDs for filter and property pages

2.5.3.0 - Nov 05, 2013

• Added output of preview sample if next IMediaSeeking::SetPositions() called
• Added registry setting to delay call of BeginFlush() if preview sample sent to output pin
• Upgraded protection

2.5.2.0 - Oct 23, 2013

• Corrected function for prepare samples in the main decoding thread

2.5.1.3 - Oct 10, 2013

• Fixed bug with conversion of the output images to RGB color space

2.5.1.2 - Oct 08, 2013

• Fixed bug of the lack of VIDEOINFOHEADER media types on output pin when "Force original chroma format" is TRUE

2.5.1.1 - Oct 04, 2013

• Added image cropping according to input media type's rectangles (used for play invalid files without cropping data)

2.5.1.0 - Sep 12, 2013

• Fixed bug with preroll handling

2.5.0.0 - Jul 18, 2013

• Fixed bug with internal threads, increased performance
• Solved the problem of frame loss
• Upgraded to latest ATL
• Added method for upload license from application code
• Upgraded license system
• Corrected C++ sample (positioning slider)
• Filter moved to AVObjects.com

2.0.2.0 - Nov 19, 2012

• Fixed problem with ACCESS_DENIED at end of file

2.0.1.1 - Nov 07, 2012

• Fixed invalid assert in Debug version

2.0.1.0 - Nov 06, 2012

• Fixed problems with IPP (invalid CPU defining for i3/i5 Sandy Bridge processors)

2.0.0.0 - Sep 02, 2012

• Redesigned/rewritten structure of filter to improve performance and stability; resolved several critical problems.
• Added 64-bit version.
• Upgraded to IPP 7.0.7.
• Added C++ and C# samples.
• Fixed problem with skipped output frames after EOS receiving.

1.1.0.2 - Jan 24, 2011

• Fixed bug with length prefixes before NAL Units.

1.1.0.0 - Jul 02, 2010

• Fixed: H.264 from MPEG-2 TS stream.
• Fixed: Aspect ratio problem.
• Fixed: Interlacing problem.
• Fixed: Time stamps issue.
• Added: Dynamic reconnection.
• Added: Dynamic media type changing.
• Added: 2 new connection media types (for ffdshow and MainConcept encoders).

1.0.1.0 - May 26, 2010

• Added: Decoding of H.264 byte stream from MPEG-2 TS.

1.0.0.8 - Mar 30, 2010

• Fixed: False positive notification from AVG antivirus.

1.0.0.7 - Feb 17, 2010

• Changed: Upgraded to IPP 6.1.3.
• Fixed: Installer bug for Windows Vista.

1.0.0.5 - Oct 27, 2009

• Fixed: Bug with playing H.264 elementary stream from MPEG-2 transport stream.

1.0.0.4 - Oct 24, 2009

• Fixed: 4:2:2 color space bug.
• Fixed: Seeking in release version bug.
• Fixed: Interlace flags.
• Fixed: Input media type parsing.

1.0.0.3 - Oct 04, 2009

• Added: Support of media type from MainConcept splitter.
• Changed: Upgraded to IPP 6.1.

1.0.0.2 - Sep 09, 2009

• First version.