210 lines
11 KiB
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210 lines
11 KiB
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<h1>.fm2</h1>
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<a href="Technicalinformation.html">Technical Information</a> ›› <a href="Movieformats.html">Movie & Savestate formats</a> ›› </div>
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<p><span class="rvts12">FCEUX Movie File format</span></p>
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<p>designed by: Zeromus</p>
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<p><br></p>
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<p>FCEUX uses a new movie file format - .fm2.</p>
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<p><br></p>
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<p>This differs from the previous FCE Ultra movie format (.fcm) in the following ways:</p>
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<p><br></p>
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<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside;">
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<li>It is text based; allowing easy movie editing/splicing</li>
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<li>An imbedded GUID so FCEUX can tell if a savestate belongs to a movie file</li>
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<li>Movies recorded from Start (Power-on) no longer have a redundant savestate</li>
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<li>Contains mouse input for recording the Zapper & Arkanoid Paddle</li>
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</ul>
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<p><br></p>
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<p><br></p>
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<p><span class="rvts16">Format</span></p>
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<p><br></p>
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<p>FM2 is ASCII plain text. It consists of several key-value pairs followed by an input log section.</p>
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<p><br></p>
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<p>The input log section can be identified by its starting with a | (pipe).</p>
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<p>The input log section terminates at EOF.</p>
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<p>Newlines may be \r\n or \n</p>
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<p><br></p>
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<p>Key-value pairs consist of a key identifier, followed by a space separator, followed by the value text.</p>
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<p>Value text is always terminated by a newline, which the value text will not include.</p>
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<p>The value text is parsed differently depending on the type of the key.</p>
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<p>The key-value pairs may be in any order, except that the first key must be version.</p>
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<p><br></p>
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<p>Integer keys (also used for booleans, with a 1 or 0) will have a value that is a simple integer not to exceed 32bits</p>
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<p> <span class="rvts39">- version</span> (required) - the version of the movie file format; for now it is always 3</p>
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<p> <span class="rvts39">- emuVersion</span> (required) - the version of the emulator used to produce the movie</p>
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<p> <span class="rvts39">- rerecordCount</span> (optional) - the rerecord count</p>
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<p> -<span class="rvts39"> palFlag</span> (bool) (optional) - true if the movie uses pal timing</p>
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<p> -<span class="rvts39"> NewPPU</span> (bool) (optional) - true if the movie uses New PPU</p>
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<p> <span class="rvts39">- fourscore</span> (bool) (<a class="rvts18" href="fm2.html#note-c">*note C</a>) - true if a fourscore was used</p>
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<p> <span class="rvts39">- FDS</span> (bool) (optional) - true if movie was recorded on a Famicom Disk System (FDS) game</p>
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<p> <span class="rvts39">- port0</span>, <span class="rvts39">port1</span> (<a class="rvts18" href="fm2.html#note-c">*note C</a>) - indicates the types of input devices. Supported values are:</p>
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<p> SI_GAMEPAD = 1,</p>
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<p> SI_ZAPPER = 2</p>
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<p><span class="rvts39"> - port2</span> (required) - indicates the type of the FCExp port device which was attached. Supported values are:</p>
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<p> SIFC_NONE = 0</p>
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<p><br></p>
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<p><br></p>
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<p><span class="rvts16">Header</span></p>
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<p><br></p>
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<p>String keys have values that consist of the remainder of the key-value pair line. As a consequence, string values cannot contain newlines.</p>
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<p><br></p>
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<p><span class="rvts39"> - romFilename</span> (required) - the name of the file used to record the movie</p>
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<p><br></p>
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<p><span class="rvts39"> - comment </span>(optional) - simply a memo.</p>
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<ul style="text-indent: 0px; margin-left: 36px; list-style-position: outside;">
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<li>by convention, the first token in the comment value is the subject of the comment.</li>
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<li>by convention, subsequent comments with the same subject will have their ordering preserved and may be used to approximate multi-line comments.</li>
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<li>by convention, the author of the movie should be stored in comment(s) with a subject of: <span class="rvts39">author</span></li>
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</ul>
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<p>Example:</p>
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<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside;">
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<li>comment author adelikat</li>
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</ul>
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<p><br></p>
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<p><span class="rvts39"> - subtitle </span>(optional) - a message that will be displayed on screen when movie is played back (unless Subtitles are turned off, see <a class="rvts18" href="MovieOptions.html">Movie options</a>).</p>
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<ul style="text-indent: 0px; margin-left: 36px; list-style-position: outside;">
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<li>by convention, subtitles will begin with the word "subtitle"</li>
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<li>by convention, an integer value will proceed which will indicate the frame that the subtitle will be displayed</li>
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<li>by convention, a string of text will follow which will be the string displayed</li>
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</ul>
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<p>Example:</p>
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<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside;">
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<li>subtitle 1000 Level Two</li>
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</ul>
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<p>At frame 1000 the words "Level Two" will be displayed on the screen</p>
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<p><br></p>
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<p><span class="rvts39"> - guid </span>(required) a unique identifier for a movie, generated when the movie is created, which is used when loading a savestate to make sure it belongs to the current movie.</p>
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<p>GUID keys have a value which is in the standard guide format: 452DE2C3-EF43-2FA9-77AC-0677FC51543B</p>
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<p><span class="rvts39"><br></span></p>
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<p><span class="rvts39"> - romChecksum </span>(required) - the MD5 hash of the ROM which was used to record the movie</p>
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<p><span class="rvts39"> - savestate </span>(optional) - a <a class="rvts18" href="fcs.html">fcs</a> savestate blob, in case a movie was recorded from savestate </p>
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<p><br></p>
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<p>Hex string keys (used for binary blobs) will have a value that is like 0x0123456789ABCDEF...</p>
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<p><br></p>
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<p><br></p>
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<p><span class="rvts16">Input log</span></p>
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<p><br></p>
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<p>The input log section consists of lines beginning and ending with a | (pipe).</p>
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<p>The fields are as follows, except as noted in <a class="rvts18" href="fm2.html#note-c">note C</a>.</p>
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<p><span class="rvts43">|c|port0|port1|port2|</span></p>
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<p><br></p>
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<p>Field <span class="rvts39">c</span> is a variable length decimal integer which is a bit field corresponding to miscellaneous input states which are valid at the start of the frame. Current values for this are:</p>
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<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside;">
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<li>1 = Soft Reset</li>
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<li>2 = Hard Reset (Power)</li>
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<li>4 = FDS Disk Insert</li>
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<li>8 = FDS Disk Select</li>
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</ul>
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<p><br></p>
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<p>The format of port0, port1, port2 depends on which types of devices were attached.</p>
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<p><br></p>
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<p>SI_GAMEPAD:</p>
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<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside;">
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<li>the field consists of eight characters which constitute a bit field.</li>
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<li>any character other than ' ' or '.' means that the button was pressed.</li>
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<li>by convention, the following mnemonics will be used in a column to remind us of which button corresponds to which column: <span class="rvts39">RLDUTSBA</span> (Right, Left, Down, Up, sTart, Select, B, A)</li>
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</ul>
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<p><br></p>
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<p>SI_ZAPPER:</p>
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<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside;">
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<li><span class="rvts39">XXX YYY B Q Z</span></li>
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</ul>
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<p><span class="rvts39">XXX: </span>%03d, the x position of the mouse</p>
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<p><span class="rvts39">YYY: </span>%03d, the y position of the mouse</p>
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<p><span class="rvts39">B: </span>%1d, 1 if the mouse button is pressed; 0 if not</p>
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<p><span class="rvts39">Q: </span>%1d, an internal value used by the emulator's zapper code (this is most unfortunate..)</p>
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<p><span class="rvts39">Z: </span>%d, a variable-length decimal integer; an internal value used by the emulator's zapper code (this is even more unfortunate..)</p>
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<p><br></p>
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<p>SIFC_NONE:</p>
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<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside;">
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<li>the field must always be empty.</li>
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</ul>
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<p><br></p>
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<p><br></p>
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<p><br></p>
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<p><br></p>
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<hr style="height: 1px; color : #000000; background-color : #000000; border-width : 0px;">
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<p><span class="rvts43">Notes:</span></p>
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<p><span class="rvts43"><br></span></p>
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<p><a name="note-a"></a>
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A. There is no key-value pair that indicates the length of the movie. This must be read by scanning the input log and counting the number of lines.</p>
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<p><br></p>
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<p><a name="note-b"></a>
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B. All movies start from power-on, unless a savestate key-value is present.</p>
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<p><br></p>
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<p><a name="note-c"></a>
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C. </p>
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<p>If a fourscore is used, then port0 and port1 are irrelevant and ignored.</p>
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<p>The input types must all be gamepads, and the input log will be in the following format:</p>
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<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside;">
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<li>{player1 player2 player3 player4}</li>
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</ul>
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<p><span class="rvts39">|c|RLDUTSBA|RLDUTSBA|RLDUTSBA|RLDUTSBA|port2|</span></p>
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<p><span class="rvts39"><br></span></p>
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<p>If a fourscore is not used, then port0 and port1 are required.</p>
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<p><br></p>
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<p><a name="note-d"></a>
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D. The emulator uses these framerate constants</p>
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<p> - NTSC: 1008307711 /256/65536 = 60.099822938442230224609375</p>
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<p> - PAL : 838977920 /256/65536 = 50.00698089599609375</p>
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<p><br></p>
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<p><a name="note-e"></a>
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E. The author of this format is curious about what people think of it. Please let him know!</p>
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<p><br></p>
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<p><br></p>
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<p><br></p>
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<p><br></p>
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<p class="rvps2"><span class="rvts13">Created with the Personal Edition of HelpNDoc: </span><a class="rvts14" href="http://www.helpndoc.com">Full featured Documentation generator</a></p>
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