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TODO
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TODO
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This file does not list all bugs which:
- are known but rarely encountered,
- are not visible to the user,
- are programming errors detectable only with the aid of testing tools,
- are benign, or
- have been reported but not yet confirmed to be attributable to MOC.
It also does not contain many "To Do" items as these are often quite fluid
and can evolve rapidly over time.
The MOC Maintainer does hold a master list containing bugs, feature requests,
program change requests and future requirements, and once it is possible to
generate this file from that list automatically it may be updated more
frequently so it is current and comprehensive.
Known Bugs:
* Character set problems:
- Do we assume filesystem in UTF-8? It's incorrect.
- id3tags v2.3 with UTF-16 are not properly handled by libid3tag, taglib
has no problems. Need to use libtag here?
- Recognition of ID3 tags v1 is broken (example: small.mp3). [node/234]
- Perhaps MOC can add support for the frame field_type to differentiate
between ID3_FIELD_TYPE_LATIN1 and ID3_FIELD_TYPE_STRING. [node/234]
- Some national characters in file and directory names don't get displayed
correctly.
* Program crashes:
- I have a problem with MOC 2.4.0 on FreeBSD 6.1-PRERELEASE. When I build
MOC with musepack (libmpcdec) support MOC always core dumps on exit.
(This may have been fixed by other storage-related patches and will be
removed in MOC 2.7 if no one has confirmed it still exists.)
- Using DB_THREAD in combination with DB_CREATE and DB_PRIVATE seems to
cause a segfault on OpenWRT. The circumvention is to configure MOC on
OpenWRT with '--disable-cache' or set the MOC configuration option
'TagsCacheSize' to zero.
* Valgrind-detected memory problems:
- libasound: memory leaks
- libdb: uninitialised parameter storage
- libffmpeg: uninitialised storage in conditions and reads
- libgme: uninitialised storage in conditions and reads
- libmagic: uninitialised storage in reads
- librcc: uninitialised storage in conditions
- libspeex: uninitialised storage in conditions and reads
- The problems above occur in libraries but it needs to be determined
whether they somehow arise from MOC's misuse of them.
- There are many data race and mutex handling problems (particularly
around the time of file-to-file transitions), but these are not visible
to the users and difficult to solve without compromising gapless playback.
* Directory and playlists:
- When sorting by file name (directories), put files beginning with a
non-alphanumeric character at the top.
- mocp -a playlist.pls should not sort added files. [node/240]
- Client does not show changes when a file's tags are updated by another
program.
- Client continues to show file names after ReadTags is toggled when
MOC is started with 'ShowTime=yes' and 'ReadTags=no'.
* Decoder problems:
- Seeking in some formats does not work in the FFmpeg decoder because of
the limitations of the FFmpeg libraries (and seeking is disabled for
them). FLV also has seeking issues and is disabled but will be enabled
if SEEK_IN_DECODER is set in the FFmpeg decoder plug-in. (This may be
parameterised in due course.)
- Some decoders do not currently pass the MD5 sum or sample count checks.
- The duration of some AAC audios is incorrectly reported. This problem
arises from the limitations of the format, but MOC now makes much more
accurate guesses.
Transitional Code Removal:
* Remove TagLib version 1.5 requirement warning.
* Remove Musepack libmpc (instead of libmpcdec) requirement warning.
* Remove librcc raised requirement warning.
Pending 2.6 Changes:
* Require at least TagLib version 1.5.
* Require Musepack libmpc (instead of libmpcdec).
* Require at least librcc version 0.2.10.
Pending 2.7 Changes:
* Remove FreeBSD program crash bug if no one has confirmed it still exists.
* Remove 'ALSAStutterDefeat' start-up warning.
Future Wishlist (items marked with $ are bigger changes requiring more time):
* Move TODO to moc.daper.net/roadmap .
* A string-valued variable "TitleFormatString", similar to "FormatString".
I'd suggest all the same %-escapes, plus:
%F -- expands to (the expansion of) the current FormatString
if there is a song playing or paused, and empty string if stopped.
%S -- expands to play/stop/pause.
* Command line option to play from a specified file/first from the last
added files. [node/286]
* Multiple file selection to move many files at once up and down. [node/288]
* Review strcat()/strcpy()/sprintf() usage, change to
strncat()/strncpy()/snprintf() where possible.
* More side menus: many directory/playlist views.
* LADSPA/LV2
* Editing the title of an item on the playlist (for Internet streams).
*$ Media library: tree-like menu for artists and albums.
* Seek by a % value (also using keys for 10%, 20%, etc).
* Ability to play from a playlist made of items found after searching.
* JACK: intelligent behaviour when we get disconnected from the server
- detect it, try connect and exit if it fails.
* FastGo instead of FastDir: go to a directory, URL or a playlist.
* Read tags for sndfile formats.
*$ http://www.peercast.org/
* Crossfade.
* Command to see all information about a file with all tags, also all
information about an internet stream (from IceCast headers like icy-url,
icy-pub).
*$ Lyrics downloaded from the Internet.
* lirc.
* Don't use PATH_MAX.
* Seek forward using the content of the output buffer.
*$ Locales.
*$ Song ratings or something like Q in XMMS.
* Configurable sorting.
* Add a key for switching sort modes.
*$ Equalizer like in Beep Media Player
*$ Make equal volume level for every song like in http://volnorm.sourceforge.net
*$ Replaygain.
* Seek to arbitrary position (by typing a number).
*$ ESD.
*$ CUE-sheet.
* Command line option to delete the currently played item from the playlist.
* Scripting.
* Some options can be changed at run-time using a menu.
* posix_fadvise() with POSIX_FADV_WILLNEED instead of the input buffer thread
for files.
* Recording played sound to a file.
* Upgrade TiMidity decoder plug-in to TiMidity++. This would add support
for soundfonts (.sf2) which are now more common.
Maybe Never:
* Report ignored server-specific options when the server is not being run.
* Funny ASCII equalizer.
* Mouse support. [node/743]