synfig-core/src/modules/mod_ffmpeg/trgt_ffmpeg.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file trgt_ffmpeg.cpp
   3 **      \brief ppm Target Module
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **      Copyright (c) 2007 Chris Moore
  10 **      Copyright (c) 2010 Diego Barrios Romero
  11 **
  12 **      This package is free software; you can redistribute it and/or
  13 **      modify it under the terms of the GNU General Public License as
  14 **      published by the Free Software Foundation; either version 2 of
  15 **      the License, or (at your option) any later version.
  16 **
  17 **      This package is distributed in the hope that it will be useful,
  18 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  20 **      General Public License for more details.
  21 **      \endlegal
  22 **
  23 ** === N O T E S ===========================================================
  24 **
  25 ** ========================================================================= */
  26
  27 /* === H E A D E R S ======================================================= */
  28
  29 #ifdef USING_PCH
  30 #       include "pch.h"
  31 #else
  32 #ifdef HAVE_CONFIG_H
  33 #       include <config.h>
  34 #endif
  35
  36 #include <ETL/stringf>
  37 #include "trgt_ffmpeg.h"
  38 #include <stdio.h>
  39 #include <sys/types.h>
  40 #if HAVE_SYS_WAIT_H
  41  #include <sys/wait.h>
  42 #endif
  43 #if HAVE_IO_H
  44  #include <io.h>
  45 #endif
  46 #if HAVE_PROCESS_H
  47  #include <process.h>
  48 #endif
  49 #if HAVE_FCNTL_H
  50  #include <fcntl.h>
  51 #endif
  52 #include <unistd.h>
  53 #include <algorithm>
  54 #include <functional>
  55 #include <ETL/clock>
  56
  57 #endif
  58
  59 /* === M A C R O S ========================================================= */
  60
  61 using namespace synfig;
  62 using namespace std;
  63 using namespace etl;
  64
  65 #if defined(HAVE_FORK) && defined(HAVE_PIPE) && defined(HAVE_WAITPID)
  66  #define UNIX_PIPE_TO_PROCESSES
  67 #else
  68  #define WIN32_PIPE_TO_PROCESSES
  69 #endif
  70
  71 /* === G L O B A L S ======================================================= */
  72
  73 SYNFIG_TARGET_INIT(ffmpeg_trgt);
  74 SYNFIG_TARGET_SET_NAME(ffmpeg_trgt,"ffmpeg");
  75 SYNFIG_TARGET_SET_EXT(ffmpeg_trgt,"mpg");
  76 SYNFIG_TARGET_SET_VERSION(ffmpeg_trgt,"0.1");
  77 SYNFIG_TARGET_SET_CVS_ID(ffmpeg_trgt,"$Id$");
  78
  79 /* === M E T H O D S ======================================================= */
  80
  81 ffmpeg_trgt::ffmpeg_trgt(const char *Filename,
  82                                                  const synfig::TargetParam& params)
  83 {
  84         pid=-1;
  85         file=NULL;
  86         filename=Filename;
  87         multi_image=false;
  88         buffer=NULL;
  89         color_buffer=0;
  90         set_remove_alpha();
  91
  92         // Set default video codec and bitrate if they weren't given.
  93         if (params.video_codec == "none")
  94                 video_codec = "mpeg1video";
  95         else
  96                 video_codec = params.video_codec;
  97
  98         if (params.bitrate == -1)
  99                 bitrate = 200;
 100         else
 101                 bitrate = params.bitrate;
 102 }
 103
 104 ffmpeg_trgt::~ffmpeg_trgt()
 105 {
 106         if(file)
 107         {
 108                 etl::yield();
 109                 sleep(1);
 110 #if defined(WIN32_PIPE_TO_PROCESSES)
 111                 pclose(file);
 112 #elif defined(UNIX_PIPE_TO_PROCESSES)
 113                 fclose(file);
 114                 int status;
 115                 waitpid(pid,&status,0);
 116 #endif
 117         }
 118         file=NULL;
 119         delete [] buffer;
 120         delete [] color_buffer;
 121 }
 122
 123 bool
 124 ffmpeg_trgt::set_rend_desc(RendDesc *given_desc)
 125 {
 126         //given_desc->set_pixel_format(PF_RGB);
 127
 128         // Make sure that the width and height
 129         // are multiples of 8
 130         given_desc->set_w((given_desc->get_w()+4)/8*8);
 131         given_desc->set_h((given_desc->get_h()+4)/8*8);
 132
 133         /*
 134         // Valid framerates:
 135         // 23.976, 24, 25, 29.97, 30, 50 ,59.94, 60
 136         float fps=given_desc->get_frame_rate();
 137         if(fps <24.0)
 138                 given_desc->set_frame_rate(23.976);
 139         if(fps>=24.0 && fps <25.0)
 140                 given_desc->set_frame_rate(24);
 141         if(fps>=25.0 && fps <29.97)
 142                 given_desc->set_frame_rate(25);
 143         if(fps>=29.97 && fps <30.0)
 144                 given_desc->set_frame_rate(29.97);
 145         if(fps>=29.97 && fps <30.0)
 146                 given_desc->set_frame_rate(29.97);
 147         if(fps>=30.0 && fps <50.0)
 148                 given_desc->set_frame_rate(30.0);
 149         if(fps>=50.0 && fps <59.94)
 150                 given_desc->set_frame_rate(50);
 151         if(fps>=59.94)
 152                 given_desc->set_frame_rate(59.94);
 153     */
 154
 155         desc=*given_desc;
 156
 157         return true;
 158 }
 159
 160 bool
 161 ffmpeg_trgt::init()
 162 {
 163         imagecount=desc.get_frame_start();
 164         if(desc.get_frame_end()-desc.get_frame_start()>0)
 165                 multi_image=true;
 166
 167 #if defined(WIN32_PIPE_TO_PROCESSES)
 168
 169         string command;
 170
 171         if( filename.c_str()[0] == '-' )
 172                 command = strprintf("ffmpeg -f image2pipe -vcodec ppm -an"
 173                                                         " -r %f -i pipe: -loop_input"
 174                                                         " -metadata title=\"%s\" "
 175                                                         " -vcodec %s -b %ik"
 176                                                         " -y -- \"%s\"\n",
 177                                                         desc.get_frame_rate(),
 178                                                         get_canvas()->get_name().c_str(),
 179                                                         video_codec.c_str(), bitrate,
 180                                                         filename.c_str());
 181         else
 182                 command = strprintf("ffmpeg -f image2pipe -vcodec ppm -an"
 183                                                         " -r %f -i pipe: -loop_input"
 184                                                         " -metadata title=\"%s\" "
 185                                                         "-vcodec %s -b %ik"
 186                                                         " -y -- \"%s\"\n",
 187                                                         desc.get_frame_rate(),
 188                                                         get_canvas()->get_name().c_str(),
 189                                                         video_codec.c_str(), bitrate,
 190                                                         filename.c_str());
 191
 192         file=popen(command.c_str(),POPEN_BINARY_WRITE_TYPE);
 193
 194 #elif defined(UNIX_PIPE_TO_PROCESSES)
 195
 196         int p[2];
 197
 198         if (pipe(p)) {
 199                 synfig::error(_("Unable to open pipe to ffmpeg"));
 200                 return false;
 201         };
 202
 203         pid = fork();
 204
 205         if (pid == -1) {
 206                 synfig::error(_("Unable to open pipe to ffmpeg"));
 207                 return false;
 208         }
 209
 210         if (pid == 0){
 211                 // Child process
 212                 // Close pipeout, not needed
 213                 close(p[1]);
 214                 // Dup pipeout to stdin
 215                 if( dup2( p[0], STDIN_FILENO ) == -1 ){
 216                         synfig::error(_("Unable to open pipe to ffmpeg"));
 217                         return false;
 218                 }
 219                 // Close the unneeded pipeout
 220                 close(p[0]);
 221                 if( filename.c_str()[0] == '-' )
 222                 {
 223                         // x264 codec needs -vpre hq parameters
 224                         if (video_codec == "libx264")
 225                                 execlp("ffmpeg", "ffmpeg", "-f", "image2pipe", "-vcodec",
 226                                            "ppm", "-an", "-r",
 227                                            strprintf("%f", desc.get_frame_rate()).c_str(),
 228                                            "-i", "pipe:", "-loop_input", "-metadata",
 229                                                 strprintf("title=\"%s\"", get_canvas()->get_name().c_str()).c_str(),
 230                                                 "-vcodec", video_codec.c_str(),
 231                                                 "-b", strprintf("%ik", bitrate).c_str(),
 232                                                 "-vpre", "hq",
 233                                                 "-y", "--", filename.c_str(), (const char *)NULL);
 234                         else
 235                                 execlp("ffmpeg", "ffmpeg", "-f", "image2pipe", "-vcodec",
 236                                            "ppm", "-an", "-r",
 237                                            strprintf("%f", desc.get_frame_rate()).c_str(),
 238                                            "-i", "pipe:", "-loop_input", "-metadata",
 239                                                 strprintf("title=\"%s\"", get_canvas()->get_name().c_str()).c_str(),
 240                                                 "-vcodec", video_codec.c_str(),
 241                                                 "-b", strprintf("%ik", bitrate).c_str(),
 242                                                 "-y", "--", filename.c_str(), (const char *)NULL);
 243                 }
 244                 else
 245                 {
 246                         if (video_codec == "libx264")
 247                                 execlp("ffmpeg", "ffmpeg", "-f", "image2pipe", "-vcodec",
 248                                            "ppm", "-an", "-r",
 249                                            strprintf("%f", desc.get_frame_rate()).c_str(),
 250                                            "-i", "pipe:", "-loop_input",
 251                                            "-metadata",
 252                                            strprintf("title=\"%s\"", get_canvas()->get_name().c_str()).c_str(),
 253                                            "-vcodec", video_codec.c_str(),
 254                                            "-b", strprintf("%ik", bitrate).c_str(),
 255                                            "-vpre", "hq",
 256                                            "-y", filename.c_str(), (const char *)NULL);
 257                         else
 258                                 execlp("ffmpeg", "ffmpeg", "-f", "image2pipe", "-vcodec",
 259                                            "ppm", "-an", "-r",
 260                                            strprintf("%f", desc.get_frame_rate()).c_str(),
 261                                            "-i", "pipe:", "-loop_input",
 262                                            "-metadata",
 263                                            strprintf("title=\"%s\"", get_canvas()->get_name().c_str()).c_str(),
 264                                            "-vcodec", video_codec.c_str(),
 265                                            "-b", strprintf("%ik", bitrate).c_str(),
 266                                            "-y", filename.c_str(), (const char *)NULL);
 267                 }
 268
 269                 // We should never reach here unless the exec failed
 270                 synfig::error(_("Unable to open pipe to ffmpeg"));
 271                 return false;
 272         } else {
 273                 // Parent process
 274                 // Close pipein, not needed
 275                 close(p[0]);
 276                 // Save pipeout to file handle, will write to it later
 277                 file = fdopen(p[1], "wb");
 278         }
 279
 280 #else
 281         #error There are no known APIs for creating child processes
 282 #endif
 283
 284         // etl::yield();
 285
 286         if(!file)
 287         {
 288                 synfig::error(_("Unable to open pipe to ffmpeg"));
 289                 return false;
 290         }
 291
 292         return true;
 293 }
 294
 295 void
 296 ffmpeg_trgt::end_frame()
 297 {
 298         //fprintf(file, " ");
 299         fflush(file);
 300         imagecount++;
 301 }
 302
 303 bool
 304 ffmpeg_trgt::start_frame(synfig::ProgressCallback */*callback*/)
 305 {
 306         int w=desc.get_w(),h=desc.get_h();
 307
 308         if(!file)
 309                 return false;
 310
 311         fprintf(file, "P6\n");
 312         fprintf(file, "%d %d\n", w, h);
 313         fprintf(file, "%d\n", 255);
 314
 315         delete [] buffer;
 316         buffer=new unsigned char[3*w];
 317         delete [] color_buffer;
 318         color_buffer=new Color[w];
 319
 320         return true;
 321 }
 322
 323 Color *
 324 ffmpeg_trgt::start_scanline(int /*scanline*/)
 325 {
 326         return color_buffer;
 327 }
 328
 329 bool
 330 ffmpeg_trgt::end_scanline()
 331 {
 332         if(!file)
 333                 return false;
 334
 335         convert_color_format(buffer, color_buffer, desc.get_w(), PF_RGB, gamma());
 336
 337         if(!fwrite(buffer,1,desc.get_w()*3,file))
 338                 return false;
 339
 340         return true;
 341 }