-/* === 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;
-}