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SanDiskE250

Problems

• Sid player only plays first tune in a file - needs multisong file support
• Won't play mod files
• USB Upload doesn't work from within Rockbox
• Crashes occasionally (loading oggs, sids, etc)
• Wastes battery

Better than Sandisk OS

• No annoying offers to buy stuff
• Plays lots of games
• Plays lots of formats (sid, ogg)
• Boots much much faster
• Can use HD MicroSD cards
• Mods can be played using a patch

Problems in both modes

• Buzzing sound while accessing the disk
• Can't charge and play music at the same time...???
• Won't recognize all my mp3 tags

Load BMP

• add the bmp file to the SOURCES file in the bitmaps/nativ folder
• extern const fb_data coinmuncher_objects[];
• rb->lcd_bitmap_transparent_part(coinmuncher_objects, 0, 30, 60, manX, manY, 20, 20);

Rockbox

• http://forums.rockbox.org/
• freenode: #rockbox
• Cool features:
  • codecs: flac, mp3, sid!!!, vorbis, wma, ogg/vorbis
  • chessclock, metronome
  • voice control
  • viewers: midiplay, mpegplayer,
  • games: blackjack, doom, pacbox, solitaire,
  • rockboy (gameboy advance emulator)
  • Supports Micro SDHC (currently up to 6GB, Should max at 32GB as per Sandisks specification)
• Copy songs to/fro e250 using linux
  • http://www.howtoforge.com/sandisk_mp3_player_linux
• Install Rockbox
  • http://download.rockbox.org/manual/rockbox-sansae200.pdf
  • http://download.rockbox.org/
• Notice the SDL port:
  • http://download.rockbox.org/cygwin/release/
• http://download.rockbox.org/cross-gcc/
• Dev kit:
  • svn
    • http://www.rockbox.org/twiki/bin/view/Main/UsingSVN
    • svn co svn://svn.rockbox.org/rockbox/trunk rockbox
  • compile and install:
    • sudo sh rockboxdev.sh
  • Make your PATH include :/usr/local/arm-elf/bin
• Compile rockbox:
  • http://www.rockbox.org/twiki/bin/view/Main/SimpleGuideToCompiling#Compiling_The_Source_Code
    • Finish w/make zip, and that's the firmware, I think...???
  • Also compile the simulator!
    • Compile, then don't forget to make install to build the archos/.rockbox dir!
• Doom:
  • .rockbox/doom/.wad files (requires rockdoom.wad or whatever)
• Code your own apps
  • Hello World:
    • http://www.rockbox.org/twiki/bin/view/Main/HowtoWritePlugins
    • rockbox/apps/plugins/helloworld.c
    • Edit SOURCES and CATEGORIES and add helloworld
    • From jakesimulator, run make and make install
• Encode video:
  • Note: the vbitrate will likely need to be tweaked.
    • dune: 200
    • repoman: 100
  • NOTE: I was able to get much smaller files using ffmpeg for cell phone movies (see krzr page)
  • ffmpeg -i robotech_2.avi -s 220x176 -vcodec mpeg2video -b 200k -ab 192k -ac 1 -ar 44100 -acodec mp3 robotech_2.mpg
  • OLDOLDOLD: mencoder dvd://0 -of mpeg -oac lavc -lavcopts acodec=mp2:abitrate=96:vmax_b_frames=16:vb_strategy=2 -af resample=44100:0:0 -ovc lavc -lavcopts vcodec=mpeg2video:vbitrate=200 -vf scale=176:220,harddup -ofps 25 -o dune.mpg