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FFmpeg's bug/patch/feature request tracker manual
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=================================================
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NOTE: This is a draft.
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Overview:
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---------
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FFmpeg uses Trac for tracking issues, new issues and changes to
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existing issues can be done through a web interface.
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It is possible to subscribe to individual issues by adding yourself to the
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Cc list or to subscribe to the ffmpeg-trac mailing list which receives
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a mail for every change to every issue.
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(the above does all work already after light testing)
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The subscription URL for the ffmpeg-trac list is:
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http(s)://ffmpeg.org/mailman/listinfo/ffmpeg-trac
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The URL of the webinterface of the tracker is:
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http(s)://ffmpeg.org/trac/ffmpeg
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NOTE: issue = (bug report || patch || feature request)
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Type:
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-----
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bug / defect
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An error, flaw, mistake, failure, or fault in FFmpeg or libav* that
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prevents it from behaving as intended.
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feature request / enhancement
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Request of support for encoding or decoding of a new codec, container
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or variant.
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Request of support for more, less or plain different output or behavior
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where the current implementation cannot be considered wrong.
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license violation
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ticket to keep track of (L)GPL violations of ffmpeg by others
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patch
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A patch as generated by diff which conforms to the patch submission and
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development policy.
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Priority:
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---------
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critical
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Bugs and patches which deal with data loss and security issues.
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No feature request can be critical.
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important
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Bugs which make FFmpeg unusable for a significant number of users, and
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patches fixing them.
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Examples here might be completely broken MPEG-4 decoding or a build issue
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on Linux.
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While broken 4xm decoding or a broken OS/2 build would not be important,
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the separation to normal is somewhat fuzzy.
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For feature requests this priority would be used for things many people
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want.
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normal
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minor
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Bugs and patches about things like spelling errors, "mp2" instead of
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"mp3" being shown and such.
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Feature requests about things few people want or which do not make a big
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difference.
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wish
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Something that is desirable to have but that there is no urgency at
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all to implement, e.g. something completely cosmetic like a website
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restyle or a personalized doxy template or the FFmpeg logo.
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This priority is not valid for bugs.
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Status:
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-------
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new
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initial state
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open
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intermediate states
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closed
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final state
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Analyzed flag:
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--------------
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Bugs which have been analyzed and where it is understood what causes them
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and which exact chain of events triggers them. This analysis should be
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available as a message in the bug report.
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Note, do not change the status to analyzed without also providing a clear
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and understandable analysis.
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This state implicates that the bug either has been reproduced or that
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reproduction is not needed as the bug is already understood.
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Type/Status/Substatus:
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----------
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*/new/new
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Initial state of new bugs, patches and feature requests submitted by
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users.
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*/open/open
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Issues which have been briefly looked at and which did not look outright
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invalid.
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This implicates that no real more detailed state applies yet. Conversely,
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the more detailed states below implicate that the issue has been briefly
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looked at.
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*/closed/duplicate
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Bugs, patches or feature requests which are duplicates.
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Note that patches dealing with the same thing in a different way are not
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duplicates.
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Note, if you mark something as duplicate, do not forget setting the
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superseder so bug reports are properly linked.
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*/closed/invalid
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Bugs caused by user errors, random ineligible or otherwise nonsense stuff.
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*/closed/needs_more_info
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Issues for which some information has been requested by the developers,
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but which has not been provided by anyone within reasonable time.
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bug/open/analyzed
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bug/open/needs_more_info
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Bug reports which are incomplete and or where more information is needed
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from the submitter or another person who can provide it.
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This state implicates that the bug has not been analyzed or reproduced.
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Note, the idea behind needs_more_info is to offload work from the
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developers to the users whenever possible.
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bug/closed/fixed
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Bugs which have to the best of our knowledge been fixed.
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bug/closed/wont_fix
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Bugs which we will not fix. Possible reasons include legality, high
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complexity for the sake of supporting obscure corner cases, speed loss
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for similarly esoteric purposes, et cetera.
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This also means that we would reject a patch.
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If we are just too lazy to fix a bug then the correct state is open
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and unassigned. Closed means that the case is closed which is not
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the case if we are just waiting for a patch.
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bug/closed/works_for_me
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Bugs for which sufficient information was provided to reproduce but
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reproduction failed - that is the code seems to work correctly to the
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best of our knowledge.
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patch/open/approved
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Patches which have been reviewed and approved by a developer.
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Such patches can be applied anytime by any other developer after some
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reasonable testing (compile + regression tests + does the patch do
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what the author claimed).
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patch/open/needs_changes
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Patches which have been reviewed and need changes to be accepted.
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patch/closed/applied
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Patches which have been applied.
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patch/closed/rejected
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Patches which have been rejected.
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feature_request/open/needs_more_info
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Feature requests where it is not clear what exactly is wanted
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(these also could be closed as invalid ...).
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feature_request/closed/implemented
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Feature requests which have been implemented.
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feature_request/closed/wont_implement
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Feature requests which will not be implemented. The reasons here could
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be legal, philosophical or others.
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Note, please do not use type-status-substatus combinations other than the
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above without asking on ffmpeg-dev first!
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Note2, if you provide the requested info do not forget to remove the
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needs_more_info substate.
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Component:
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----------
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avcodec
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issues in libavcodec/*
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avformat
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issues in libavformat/*
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avutil
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issues in libavutil/*
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regression test
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issues in tests/*
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ffmpeg
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issues in or related to ffmpeg.c
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ffplay
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issues in or related to ffplay.c
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ffprobe
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issues in or related to ffprobe.c
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ffserver
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issues in or related to ffserver.c
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build system
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issues in or related to configure/Makefile
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regression
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bugs which were working in a past revision
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trac
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issues related to our issue tracker
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