Line 2: |
Line 2: |
| | | |
| /private/ds/app/4B475556/001 - European location | | /private/ds/app/4B475556/001 - European location |
| + | /private/ds/app/4B475545/001 - North American location |
| | | |
| You can save your images in a user folder as long as it's on the same level as the 001 folder. Clicking on the Choose Folder icon on the top of the View Flipnote / SD Card option gives you a list of normal folders, and you can swap to user folders by selecting the normal button again. This could possibly be to overcome a limitation in one of the files (possibly the dirmemo2.lst file). | | You can save your images in a user folder as long as it's on the same level as the 001 folder. Clicking on the Choose Folder icon on the top of the View Flipnote / SD Card option gives you a list of normal folders, and you can swap to user folders by selecting the normal button again. This could possibly be to overcome a limitation in one of the files (possibly the dirmemo2.lst file). |
Line 206: |
Line 207: |
| |- | | |- |
| | 0000 | | | 0000 |
− | | 4 | + | | 2 |
| | Size of the offset table | | | Size of the offset table |
| + | |- |
| + | | 0002 |
| + | | 2 |
| + | | Padding |
| |- | | |- |
| | 0004 | | | 0004 |
Line 310: |
Line 315: |
| | | |
| if( useByte == 0 ) // Set the full line to the current paper colour | | if( useByte == 0 ) // Set the full line to the current paper colour |
| + | { |
| memset( outB, paper, 256 ); | | memset( outB, paper, 256 ); |
| + | } |
| else // Bytes in this line, read and deal with them | | else // Bytes in this line, read and deal with them |
| { | | { |
Line 323: |
Line 330: |
| { | | { |
| if( ( data & 0x01 ) == 0x01 ) | | if( ( data & 0x01 ) == 0x01 ) |
| + | { |
| outB[ x ] = invflag == 0 ? pen : paper; | | outB[ x ] = invflag == 0 ? pen : paper; |
| + | } |
| else | | else |
| + | { |
| outB[ x ] = invflag == 0 ? paper : pen; | | outB[ x ] = invflag == 0 ? paper : pen; |
− | | + | } |
| x ++; | | x ++; |
| | | |
Line 342: |
Line 352: |
| | | |
| if( x < 256 ) | | if( x < 256 ) |
| + | { |
| memset( &outB[ x ], paper, 256 - x ); | | memset( &outB[ x ], paper, 256 - x ); |
| + | } |
| } | | } |
| | | |
Line 358: |
Line 370: |
| |- style="background-color: #ddd;" | | |- style="background-color: #ddd;" |
| ! Length | | ! Length |
| + | ! Function |
| ! Description | | ! Description |
| |- | | |- |
− | | Frame count | + | | Framecount |
− | | Sound effect usage. Each byte represents a frame, and bit #1 represents Sound effect 1, bit #2 represents Sound effect 2 and bit #3 represents Sound effect 3. | + | | Sound effect usage. |
| + | | Each byte represents a frame. bit #1(from Right to Left) represents Sound effect 1, bit #2 represents Sound effect 2 and bit #3 represents Sound effect 3. the last 5 bits is padding. |
| |- | | |- |
| | 0 - 3 | | | 0 - 3 |
− | | Padding - Makes the offset to the next four bytes dividable by 4 | + | | Padding |
| + | | 0x00 * (0 to 3). Makes the offset to the next value dividable by 4. |
| |- | | |- |
| | 4 | | | 4 |
− | | Size of the background music(0x0000000 if not used) | + | | Size of the background music. |
| + | | The size of the background music in bytes in the audio data below. 0x0 if not used/empty. |
| |- | | |- |
| | 4 | | | 4 |
− | | Size of sound effect #1(0x0000000 if not used) | + | | Size of sound effect #1 |
| + | | The size of the sound effect #1 in bytes in the audio data below, max size is 0x2000. 0x0 if not used/empty. |
| |- | | |- |
| | 4 | | | 4 |
− | | Size of sound effect #2(0x0000000 if not used) | + | | Size of sound effect #2 |
| + | | The size of the sound effect #3 in bytes in the audio data below, max size is 0x2000. 0x0 if not used/empty. |
| |- | | |- |
| | 4 | | | 4 |
− | | Size of sound effect #3(0x0000000 if not used) | + | | Size of sound effect #3 |
| + | | The size of the sound effect #3 in bytes in the audio data below, max size is 0x2000. 0x0 if not used/empty. |
| + | |- |
| + | | 1 |
| + | | Current Framespeed. |
| + | | This is the speed of the flipnote. It's in the range of 1-8. To get the correct value, you must take 8, and subtract the decimal value of this byte. |
| |- | | |- |
| | 1 | | | 1 |
− | | Frame speed. To get the correct value, you must take 8, and subtract the decimal value of this byte. | + | | Given Framespeed when BGM was recorded. |
| + | | This is the speed of the flipnote when the BGM was recorded/modified. It's in the range of 1-8. This is used to resample the sound to the new speed. To get the correct value, you must take 8, and subtract the decimal value of this byte. |
| |- | | |- |
− | | 15 | + | | 14 |
− | | Unknown - Used for sound decoding? (samplerate, compression, etc) | + | | Padding |
| + | | 0x00 * 14 |
| |} | | |} |
| | | |
− | I have yet to figure out the sound decoding...--[[User:Pbsds|pbsds]] 17:38, 6 June 2010 (UTC)
| + | Then comes the audio data. |
| + | |
| + | *First comes the BGM(if used) |
| + | |
| + | *Then comes sound effect #1(if used) |
| + | |
| + | *Then comes sound effect #2(if used) |
| + | |
| + | *Then comes sound effect #3(if used) |
| + | |
| + | |
| + | The sound data is 4bit ADPCM with reversed nibbles @ 8kHz. |
| + | |
| + | You can decode the sound yourself with "sox -t ima -N [input] [output]" |
| + | |
| + | ==Signature== |
| + | |
| + | The last 0x10-bytes in a PPM are all-zero. The 0x80 bytes before that is a RSA-1024 SHA-1 signature over the whole PPM, excluding the last 0x90 bytes with the signature. |