Release synfig_0_61_07

[synfig.git] / synfig-core / tags / synfig_0_61_07 / src / modules / mod_ffmpeg / mptr_ffmpeg.cpp

diff --git a/synfig-core/tags/synfig_0_61_07/src/modules/mod_ffmpeg/mptr_ffmpeg.cpp b/synfig-core/tags/synfig_0_61_07/src/modules/mod_ffmpeg/mptr_ffmpeg.cpp
new file mode 100644 (file)
index 0000000..116c6da
--- /dev/null
+++ b/synfig-core/tags/synfig_0_61_07/src/modules/mod_ffmpeg/mptr_ffmpeg.cpp
@@ -0,0 +1,183 @@
+/* === S Y N F I G ========================================================= */
+/*!    \file mptr_ffmpeg.cpp
+**     \brief ppm Target Module
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+**     This package is free software; you can redistribute it and/or
+**     modify it under the terms of the GNU General Public License as
+**     published by the Free Software Foundation; either version 2 of
+**     the License, or (at your option) any later version.
+**
+**     This package is distributed in the hope that it will be useful,
+**     but WITHOUT ANY WARRANTY; without even the implied warranty of
+**     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+**     General Public License for more details.
+**     \endlegal
+**
+** === N O T E S ===========================================================
+**
+** ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#      include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#      include <config.h>
+#endif
+
+#include <ETL/stringf>
+#include "mptr_ffmpeg.h"
+#include <stdio.h>
+#include <iostream>
+#include <algorithm>
+#include <functional>
+#include <ETL/stringf>
+#endif
+
+/* === M A C R O S ========================================================= */
+
+using namespace synfig;
+using namespace std;
+using namespace etl;
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_IMPORTER_INIT(ffmpeg_mptr);
+SYNFIG_IMPORTER_SET_NAME(ffmpeg_mptr,"ffmpeg");
+SYNFIG_IMPORTER_SET_EXT(ffmpeg_mptr,"avi");
+SYNFIG_IMPORTER_SET_VERSION(ffmpeg_mptr,"0.1");
+SYNFIG_IMPORTER_SET_CVS_ID(ffmpeg_mptr,"$Id$");
+
+/* === M E T H O D S ======================================================= */
+
+bool
+ffmpeg_mptr::seek_to(int frame)
+{
+       if(frame<cur_frame || !file)
+       {
+               if(file)
+               {
+                       pclose(file);
+               }
+
+               string command;
+
+               command=strprintf("ffmpeg -i \"%s\" -an -f image2pipe -vcodec ppm -\n",filename.c_str());
+
+               file=popen(command.c_str(),"r");
+
+               if(!file)
+               {
+                       cerr<<"Unable to open pipe to ffmpeg"<<endl;
+                       return false;
+               }
+               cur_frame=-1;
+       }
+
+       while(cur_frame<frame-1)
+       {
+               cerr<<"Seeking to..."<<frame<<'('<<cur_frame<<')'<<endl;
+               if(!grab_frame())
+                       return false;
+       }
+       return true;
+}
+
+bool
+ffmpeg_mptr::grab_frame(void)
+{
+       if(!file)
+       {
+               cerr<<"unable to open "<<filename<<endl;
+               return false;
+       }
+       int w,h;
+       float divisor;
+       char cookie[2];
+       cookie[0]=fgetc(file);
+       cookie[1]=fgetc(file);
+
+       if(cookie[0]!='P' || cookie[1]!='6')
+       {
+               cerr<<"stream not in PPM format \""<<cookie[0]<<cookie[1]<<'"'<<endl;
+               return false;
+       }
+
+       fgetc(file);
+       fscanf(file,"%d %d\n",&w,&h);
+       fscanf(file,"%f",&divisor);
+       fgetc(file);
+
+       if(feof(file))
+               return false;
+
+       int x;
+       int y;
+       frame.set_wh(w,h);
+       for(y=0;y<frame.get_h();y++)
+               for(x=0;x<frame.get_w();x++)
+               {
+                       if(feof(file))
+                               return false;
+/*
+                       frame[y][x]=Color(
+                               (float)(unsigned char)fgetc(file)/divisor,
+                               (float)(unsigned char)fgetc(file)/divisor,
+                               (float)(unsigned char)fgetc(file)/divisor,
+                               1.0
+*/
+                       float r=gamma().r_U8_to_F32((unsigned char)fgetc(file));
+                       float g=gamma().g_U8_to_F32((unsigned char)fgetc(file));
+                       float b=gamma().b_U8_to_F32((unsigned char)fgetc(file));
+                       frame[y][x]=Color(
+                               r,
+                               g,
+                               b,
+                               1.0
+                       );
+               }
+       cur_frame++;
+       return true;
+}
+
+ffmpeg_mptr::ffmpeg_mptr(const char *f)
+{
+#ifdef HAVE_TERMIOS_H
+       tcgetattr (0, &oldtty);
+#endif
+       filename=f;
+       file=NULL;
+       fps=23.98;
+       cur_frame=-1;
+}
+
+ffmpeg_mptr::~ffmpeg_mptr()
+{
+       if(file)
+               pclose(file);
+#ifdef HAVE_TERMIOS_H
+       tcsetattr(0,TCSANOW,&oldtty);
+#endif
+}
+
+bool
+ffmpeg_mptr::get_frame(synfig::Surface &surface,Time time, synfig::ProgressCallback *)
+{
+       int i=(int)(time*fps);
+       if(i!=cur_frame)
+       {
+               if(!seek_to(i))
+                       return false;
+               if(!grab_frame());
+                       return false;
+       }
+
+       surface=frame;
+       return false;
+}