1 /* === S Y N F I G ========================================================= */
3 ** \brief bsd_mpeg1 Target Module
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
21 ** === N O T E S ===========================================================
23 ** ========================================================================= */
25 /* === H E A D E R S ======================================================= */
34 #include <ETL/stringf>
42 /* === M A C R O S ========================================================= */
44 using namespace synfig;
48 /* === G L O B A L S ======================================================= */
50 const char bsd_mpeg1::Name[]="mpeg1";
51 const char bsd_mpeg1::Ext[]="mpg";
53 #define tmp_dir string("/tmp/")
55 /* === M E T H O D S ======================================================= */
57 #error This code has tmpfile vulnerabilites
60 bsd_mpeg1::New(const char *filename)
62 return new bsd_mpeg1(filename);
65 bsd_mpeg1::bsd_mpeg1(const char *Filename,
66 const synfig::TargetParam& /* params */)
69 passthru=ppm::New((tmp_dir+"temp.ppm").c_str());
74 bsd_mpeg1::~bsd_mpeg1()
79 cerr<<"Encoding "<<filename<<"with \"mpeg_encode\" utility..."<<endl;
80 if(system("mpeg_encode -float-dct -realquiet /tmp/temp.param")!=0)
82 cerr<<"Failed to encode "<<filename<<"with \"mpeg_encode\" utility"<<endl;
83 cerr<<"Are you sure it is installed?"<<endl;
88 bsd_mpeg1::set_rend_desc(RendDesc *given_desc)
94 paramfile=fopen((tmp_dir+"temp.param").c_str(),"wt");
95 int bitrate=150; // kbytes per second
96 int buffer_drift=50; // bitrate drift (in kbytes per second)
102 "PATTERN IBBPBBPBBPBBPBBP\n"
104 "BASE_FILE_FORMAT PPM\n"
107 "SLICES_PER_FRAME 1\n"
111 "PSEARCH_ALG LOGARITHMIC\n"
112 "BSEARCH_ALG CROSS2\n"
119 "REFERENCE_FRAME ORIGINAL\n"
121 // "BIT_RATE 1000000\n"
122 // "BUFFER_SIZE 327680\n"
124 ,filename.c_str(),bitrate,buffer_drift);
125 float fps=given_desc->get_frame_rate();
128 // 23.976, 24, 25, 29.97, 30, 50 ,59.94, 60
132 fprintf(paramfile,"FRAME_RATE 23.976\n");
133 given_desc->set_frame_rate(23.976);
135 if(fps>=24.0 && fps <25.0)
137 fprintf(paramfile,"FRAME_RATE 24\n");
138 given_desc->set_frame_rate(24);
140 if(fps>=25.0 && fps <29.97)
142 fprintf(paramfile,"FRAME_RATE 25\n");
143 given_desc->set_frame_rate(25);
145 if(fps>=29.97 && fps <30.0)
147 fprintf(paramfile,"FRAME_RATE 29.97\n");
148 given_desc->set_frame_rate(29.97);
150 if(fps>=29.97 && fps <30.0)
152 fprintf(paramfile,"FRAME_RATE 29.97\n");
153 given_desc->set_frame_rate(29.97);
155 if(fps>=30.0 && fps <50.0)
157 fprintf(paramfile,"FRAME_RATE 30\n");
158 given_desc->set_frame_rate(30.0);
160 if(fps>=50.0 && fps <59.94)
162 fprintf(paramfile,"FRAME_RATE 50\n");
163 given_desc->set_frame_rate(50);
167 fprintf(paramfile,"FRAME_RATE 59.94\n");
168 given_desc->set_frame_rate(59.94);
171 // Make sure that the width and height
172 // are multiples of 8
173 given_desc->set_w((given_desc->get_w()+4)/8*8);
174 given_desc->set_h((given_desc->get_h()+4)/8*8);
176 if(!passthru->set_rend_desc(given_desc))
183 "tmp/temp*.ppm [%04d-%04d]\n"
184 "END_INPUT\n",desc.get_frame_start(),desc.get_frame_end()-1);
193 bsd_mpeg1::end_frame()
195 passthru->end_frame();
199 bsd_mpeg1::start_frame(synfig::ProgressCallback *callback)
201 return passthru->start_frame(callback);
205 bsd_mpeg1::start_scanline(int scanline)
207 return passthru->start_scanline(scanline);
211 bsd_mpeg1::end_scanline(void)
213 return passthru->end_scanline();