ó ;c›]c@sÂdZddlZddlZddlZddlmZmZmZej e ƒZ dZ defd„ƒYZdefd„ƒYZejdkr¢d „Zn d „Zd dd „ƒYZdS(s" PIL formats for multiple images. iÿÿÿÿNi(t PillowFormattndarray_to_pilt image_as_uintt TIFFFormatcBseZdZdZRS(tisTIFF format (Pillow)(t__name__t __module__t_modest _description(((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyRst GIFFormatcBsLeZdZdZdZdejfd„ƒYZdejfd„ƒYZRS(sØ A format for reading and writing static and animated GIF, based on Pillow. Images read with this format are always RGBA. Currently, the alpha channel is ignored when saving RGB images with this format. Parameters for reading ---------------------- None Parameters for saving --------------------- loop : int The number of iterations. Default 0 (meaning loop indefinitely). duration : {float, list} The duration (in seconds) of each frame. Either specify one value that is used for all frames, or one value for each frame. Note that in the GIF format the duration/delay is expressed in hundredths of a second, which limits the precision of the duration. fps : float The number of frames per second. If duration is not given, the duration for each frame is set to 1/fps. Default 10. palettesize : int The number of colors to quantize the image to. Is rounded to the nearest power of two. Default 256. subrectangles : bool If True, will try and optimize the GIF by storing only the rectangular parts of each frame that change with respect to the previous. Default False. tiIs Static and animated gif (Pillow)tReadercBseZdd„ZRS(cCstjj|ƒS(N(RR t_open(tselftplayback((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR <sN(RRtNoneR (((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR ;stWritercBs5eZddddded„Zd„Zd„ZRS(ii ic Csot|ƒ}|dks$|dkr3tdƒ‚n|dkrpdttjd ƒd ƒ}tjd |ƒn|dkr’d t|ƒ|_nIt |t t fƒrÌg|D]}t|ƒ^q®|_nt|ƒ|_t|ƒ}|d ks|tdƒkrd }nt|ƒ}t |ƒ}|r2dnd|_ |jjƒ}t||||t|ƒƒ|_dS(Niis!GIF quantize param must be 2..256iiii i@i€g+‡ÙÎ÷ï?sDWarning: palettesize (%r) modified to a factor of two between 2-256.gð?itinfi(iiiii i@i€i(tintt ValueErrortnptlog2tloggertwarningRtfloatt _durationt isinstancetlistttupletboolt_disposetrequesttget_filet GifWritert_writer( R tlooptdurationtfpst palettesizet quantizert subrectanglestdtfp((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR @s,    %    cCs|jjƒdS(N(R"tclose(R ((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyt_closejscCs·t|ddƒ}|jdkrV|jddkrV|dd…dd…df}n|j}t|tƒr”|tt|ƒd|jj ƒ}n|j }|jj |||ƒdS(Ntbitdepthiiiÿÿÿÿii( RtndimtshapeRRRtmintlenR"t_countRt add_image(R timtmetaR$tdispose((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyt _append_datams"" & N(RRRtFalseR R,R7(((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR?s # (RRt__doc__RRRR R(((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR s icCs|jdddƒS(Nit byteordertlittle(tto_bytes(R((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyt{tcCs.|d}t|dƒ}t|ƒt|ƒS(sInteger to two bytesi(Rtchr(Rti1ti2((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pytintToBin~s R!cBs‰eZdZedddd„Zd„Zd„Zd„Zd„Zd„Z dd „Z d „Z d d d „Z d„Zdd„ZRS(s´ Class that for helping write the animated GIF file. This is based on code from images2gif.py (part of visvis). The version here is modified to allow streamed writing. iicCse||_||_||_||_||_d|_d|_d|_ddl m }||_ dS(Niiÿÿÿÿ(tgetdata( R*topt_subrectangletopt_loopt opt_quantizertopt_palette_sizeRt_previous_imaget_global_paletteR2tPIL.GifImagePluginRC(R tfileRDRERFRGRC((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyt__init__Œs        c CsÓ|d}}|jr.|j|ƒ\}}n|j||j|jƒ}ddlm}||ƒdd}|jdkrž|j|||j ƒ||_ n|j |||||ƒ||_ |jd7_dS(Niiÿÿÿÿ(t getheaderii(ii( RDtgetSubRectanglet converToPILRFRGRJRMR2t write_headerRERIt write_imageRH( R R4R$R6tim_recttrecttim_pilRMtpalette((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR3£s    cCsR|j|ƒ}|j|ƒ}|jj|ƒ|jj|ƒ|jj|ƒdS(N(t getheaderAnimt getAppExtR*twrite(R R4t globalPaletteR#theadertappext((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyRP½s cCs|jjdjdƒƒdS(Nt;sutf-8(R*RXtencode(R ((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR+Æsc Cs|j}|j|ƒ}d}x/|rOt|ƒdkrO||jdƒ7}q!Wt|ƒdksht‚|j||ƒ} |j||ƒ} ||jks§|dkrÞ|j| ƒ|j| ƒ|j|ƒ|jdƒn|j| ƒ|j|ƒx|D]} |j| ƒqÿWdS(NR>i iis( R*RCR1tpoptAssertionErrortgetImageDescriptortgetGraphicsControlExtRIRX( R R4RURSR$R6R*tdatatimdestlidtgraphextR)((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyRQÉs"       cCsBd}|t|jdƒ7}|t|jdƒ7}|d7}|S(s> Get animation header. To replace PILs getheader()[0] tGIF89aiis‡(RBtsize(R R4tbb((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyRVës  cCs|dkrd}nd}|t|dƒ7}|t|dƒ7}|t|jdƒ7}|t|jdƒ7}|d7}|S(sŒ Used for the local color table properties per image. Otherwise global color table applies to all frames irrespective of whether additional colors comes in play that require a redefined palette. Still a maximum of 256 color per frame, obviously. Written by Ant1 on 2010-08-22 Modified by Alex Robinson in Janurari 2011 to implement subrectangles. is,is‡N(ii(RRBRg(R R4txyRh((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR`ôs   cCsr|dkrdS|dkr%d }nd}|dkrnd}|d7}|d7}|t|ƒ7}|d 7}n|S( s} Application extension. This part specifies the amount of loops. If loop is 0 or inf, it goes on infinitely. iR>iiis!ÿ s NETSCAPE2.0ssiiÿÿ(RB(R R#Rh((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyRWs       gš™™™™™¹?icCs]d}|t|d@d>ƒjdƒ7}|tt|ddƒƒ7}|d7}|d7}|S(sc Graphics Control Extension. A sort of header at the start of each image. Specifies duration and transparancy. Dispose ------- * 0 - No disposal specified. * 1 - Do not dispose. The graphic is to be left in place. * 2 - Restore to background color. The area used by the graphic must be restored to the background color. * 3 - Restore to previous. The decoder is required to restore the area overwritten by the graphic with what was there prior to rendering the graphic. * 4-7 -To be defined. s!ùiisutf-8idgà?s(R?R]RBR(R R$R6Rh((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyRa#s !  c Cs#|jdkr|dfS|j}tj||ƒ}|jdkrV|jdƒ}ntj|jdƒƒ}tj|jdƒƒ}|jrå|jråt|dƒt|ddƒ}}t|dƒt|ddƒ}} nd\}}d\}} ||| …||…f||ffS( ss Calculate the minimal rectangle that need updating. Returns a two-element tuple containing the cropped image and an x-y tuple. Calculating the subrectangles takes extra time, obviously. However, if the image sizes were reduced, the actual writing of the GIF goes faster. In some cases applying this method produces a GIF faster. iiiiiÿÿÿÿ(ii(ii(ii( R2RHRtabsR.tsumtargwhereRgR( R R4tprevtdifftXtYtx0tx1ty0ty1((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyRN=s   %(  cCs¿t|dƒ}|d krWd}|jdƒ}t||ƒ}|j|d|ƒ}nd|dkr«|d kr|jdƒ}n|jd ƒ}|jd|d |ƒ}ntd |ƒ‚|S(sConvert image to Paletted PIL image. PIL used to not do a very good job at quantization, but I guess this has improved a lot (at least in Pillow). I don't think we need neuqant (and we can add it later if we really want). tgiftnqtneuquanti tRGBAtcolorsiiitRGBtmethodsInvalid value for quantizer: %r(RvRw(iii(RtconverttNeuQuanttquantizeR(R R4R't palette_sizeRTt nq_samplefact nqInstance((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyRO]s   N(RRR9tTrueRLR3RPR+RQRVRR`RWRaRNRO(((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyR!†s    "   (i((R9tsystloggingtnumpyRtpillowRRRt getLoggerRRRR}RR t version_infoRBR!(((s:lib/python2.7/site-packages/imageio/plugins/pillowmulti.pyts   c