Here is a list of all files with brief descriptions:

[detail level 123]

► foobar2000
► ATLHelpers
ATLHelpers.h
AutoComplete.cpp
AutoComplete.h
BumpableElem.h
CDialogResizeHelper.cpp
CDialogResizeHelper.h
GDIUtils.h
inplace_edit.cpp
inplace_edit.h
inplace_edit_v2.cpp
inplace_edit_v2.h
misc.cpp
misc.h
stdafx.cpp
stdafx.h
WindowPositionUtils.h
WTL-PP.h
► foo_sample
contextmenu.cpp
decode.cpp
dsp.cpp
initquit.cpp
input_raw.cpp
main.cpp
mainmenu.cpp
PCH.cpp
playback_state.cpp
preferences.cpp
resource.h
stdafx.h
ui_element.cpp
► foobar2000_component_client
component_client.cpp
► helpers
bitreader_helper.h
CallForwarder.h
cfg_guidlist.h
clipboard.cpp
clipboard.h
COM_utils.h
CPowerRequest.cpp
CPowerRequest.h
create_directory_helper.cpp
create_directory_helper.h
cue_creator.cpp
cue_creator.h
cue_parser.cpp
cue_parser.h
cue_parser_embedding.cpp
cuesheet_index_list.cpp
cuesheet_index_list.h
dialog_resize_helper.cpp
dialog_resize_helper.h
dropdown_helper.cpp
dropdown_helper.h
dynamic_bitrate_helper.cpp
dynamic_bitrate_helper.h
fb2k_threads.h
file_cached.h
file_info_const_impl.cpp
file_info_const_impl.h
file_list_helper.cpp
file_list_helper.h
file_move_helper.cpp
file_move_helper.h
file_win32_wrapper.cpp
file_win32_wrapper.h
filetimetools.cpp
filetimetools.h
fullFileBuffer.h
helpers.h
icon_remapping_wildcard.h
IDataObjectUtils.cpp
IDataObjectUtils.h
input_helpers.cpp
input_helpers.h
listview_helper.cpp
listview_helper.h
meta_table_builder.h
metadb_io_hintlist.cpp
metadb_io_hintlist.h
mp3_utils.cpp
mp3_utils.h
playlist_position_reference_tracker.h
ProcessUtils.h
ProfileCache.h
seekabilizer.cpp
seekabilizer.h
StdAfx.cpp
StdAfx.h
stream_buffer_helper.cpp
stream_buffer_helper.h
string_filter.h
text_file_loader.cpp
text_file_loader.h
ThreadUtils.h
VisUtils.cpp
VisUtils.h
win32_dialog.cpp
win32_dialog.h
win32_misc.cpp
win32_misc.h
window_placement_helper.cpp
window_placement_helper.h
writer_wav.cpp
writer_wav.h
► SDK
abort_callback.cpp
abort_callback.h
advconfig.cpp
advconfig.h
album_art.cpp
album_art.h
album_art_helpers.h
app_close_blocker.cpp
app_close_blocker.h
audio_chunk.cpp
audio_chunk.h
audio_chunk_channel_config.cpp
audio_postprocessor.h
autoplaylist.h
cfg_var.cpp
cfg_var.h
chapterizer.cpp
chapterizer.h
commandline.cpp
commandline.h
completion_notify.cpp
completion_notify.h
component.h
component_client.h
components_menu.h
componentversion.cpp
componentversion.h
config_io_callback.h
config_object.cpp
config_object.h
config_object_impl.h
console.cpp
console.h
contextmenu.h
contextmenu_manager.h
core_api.h
coreversion.h
decode_postprocessor.h
dsp.cpp
dsp.h
dsp_manager.cpp
dsp_manager.h
event_logger.h
exceptions.h
file_cached_impl.cpp
file_info.cpp
file_info.h
file_info_impl.cpp
file_info_impl.h
file_info_merge.cpp
file_operation_callback.cpp
file_operation_callback.h
filesystem.cpp
filesystem.h
filesystem_helper.cpp
filesystem_helper.h
foobar2000.h
genrand.h
guids.cpp
hasher_md5.cpp
hasher_md5.h
http_client.h
icon_remap.h
info_lookup_handler.h
initquit.h
input.cpp
input.h
input_file_type.cpp
input_file_type.h
input_impl.h
library_manager.h
link_resolver.cpp
link_resolver.h
main_thread_callback.cpp
main_thread_callback.h
mainmenu.cpp
mem_block_container.cpp
mem_block_container.h
menu.h
menu_helpers.cpp
menu_helpers.h
menu_item.cpp
menu_manager.cpp
message_loop.h
metadb.cpp
metadb.h
metadb_handle.cpp
metadb_handle.h
metadb_handle_list.cpp
modeless_dialog.h
ole_interaction.h
output.cpp
output.h
packet_decoder.cpp
packet_decoder.h
play_callback.h
playable_location.cpp
playable_location.h
playback_control.cpp
playback_control.h
playback_stream_capture.h
playlist.cpp
playlist.h
playlist_loader.cpp
playlist_loader.h
popup_message.cpp
popup_message.h
preferences_page.cpp
preferences_page.h
progress_meter.h
replaygain.cpp
replaygain.h
replaygain_info.cpp
replaygain_scanner.h
resampler.h
search_tools.cpp
search_tools.h
service.cpp
service.h
service_impl.h
shortcut_actions.h
stdafx.cpp
system_time_keeper.h
tag_processor.cpp
tag_processor.h
tag_processor_id3v2.cpp
threaded_process.cpp
threaded_process.h
titleformat.cpp
titleformat.h
track_property.h
ui.cpp
ui.h
ui_edit_context.h
ui_element.cpp
ui_element.h
unpack.h
vis.h
► shared
audio_math.h
fb2kdebug.h
filedialogs.h
shared.h
win32_misc.h
► pfc
alloc.h
array.h
audio_math.cpp
audio_sample.cpp
audio_sample.h
avltree.h
base64.cpp
base64.h
binary_search.h
bit_array.cpp
bit_array.h
bit_array_impl.h
bit_array_impl_part2.h
bsearch.cpp
bsearch.h
bsearch_inline.h
byte_order_helper.h
chain_list_v2.h
com_ptr_t.h
cpuid.cpp
cpuid.h
event.h
filehandle.cpp
filehandle.h
guid.cpp
guid.h
instance_tracker.h
int_types.h
iterators.h
list.h
map.h
mem_block_mgr.h
memalign.h
nix-objects.cpp
nix-objects.h
obj-c.mm
order_helper.h
other.cpp
other.h
pathUtils.cpp
pathUtils.h
pfc.h
pp-gettickcount.h
pp-winapi.h
primitives.h
primitives_part2.h
printf.cpp
ptr_list.h
rcptr.h
ref_counter.h
selftest.cpp
sort.cpp
sort.h
stdafx.cpp
string8_impl.h
string_base.cpp
string_base.h
string_conv.cpp
string_conv.h
string_list.h
stringNew.cpp
stringNew.h
syncd_storage.h
synchro_nix.cpp
synchro_nix.h
synchro_win.h
threads.cpp
threads.h
timers.cpp
timers.h
traits.h
utf8.cpp
wildcard.cpp
wildcard.h
win-objects.cpp
win-objects.h