-/*! ========================================================================
-** Synfig
-** ppm Target Module
-** $Id: trgt_ffmpeg.cpp,v 1.1.1.1 2005/01/04 01:23:10 darco Exp $
+/* === S Y N F I G ========================================================= */
+/*! \file trgt_ffmpeg.cpp
+** \brief ppm Target Module
**
+** $Id$
+**
+** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007 Chris Moore
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** 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 ===========================================================
**
#include <ETL/stringf>
#include "trgt_ffmpeg.h"
#include <stdio.h>
+#include <sys/types.h>
+#if HAVE_SYS_WAIT_H
+ #include <sys/wait.h>
+#endif
+#if HAVE_IO_H
+ #include <io.h>
+#endif
+#if HAVE_PROCESS_H
+ #include <process.h>
+#endif
+#if HAVE_FCNTL_H
+ #include <fcntl.h>
+#endif
+#include <unistd.h>
#include <algorithm>
#include <functional>
#include <ETL/clock>
using namespace std;
using namespace etl;
+#if defined(HAVE_FORK) && defined(HAVE_PIPE) && defined(HAVE_WAITPID)
+ #define UNIX_PIPE_TO_PROCESSES
+#else
+ #define WIN32_PIPE_TO_PROCESSES
+#endif
+
/* === G L O B A L S ======================================================= */
SYNFIG_TARGET_INIT(ffmpeg_trgt);
SYNFIG_TARGET_SET_NAME(ffmpeg_trgt,"ffmpeg");
SYNFIG_TARGET_SET_EXT(ffmpeg_trgt,"mpg");
SYNFIG_TARGET_SET_VERSION(ffmpeg_trgt,"0.1");
-SYNFIG_TARGET_SET_CVS_ID(ffmpeg_trgt,"$Id: trgt_ffmpeg.cpp,v 1.1.1.1 2005/01/04 01:23:10 darco Exp $");
+SYNFIG_TARGET_SET_CVS_ID(ffmpeg_trgt,"$Id$");
/* === M E T H O D S ======================================================= */
ffmpeg_trgt::ffmpeg_trgt(const char *Filename)
{
+ pid=-1;
file=NULL;
filename=Filename;
multi_image=false;
{
etl::yield();
sleep(1);
+#if defined(WIN32_PIPE_TO_PROCESSES)
pclose(file);
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+ fclose(file);
+ int status;
+ waitpid(pid,&status,0);
+#endif
}
file=NULL;
delete [] buffer;
ffmpeg_trgt::set_rend_desc(RendDesc *given_desc)
{
//given_desc->set_pixel_format(PF_RGB);
-
+
// Make sure that the width and height
// are multiples of 8
given_desc->set_w((given_desc->get_w()+4)/8*8);
if(fps>=59.94)
given_desc->set_frame_rate(59.94);
*/
-
+
desc=*given_desc;
return true;
imagecount=desc.get_frame_start();
if(desc.get_frame_end()-desc.get_frame_start()>0)
multi_image=true;
+
+#if defined(WIN32_PIPE_TO_PROCESSES)
+
string command;
-
- command=strprintf("ffmpeg -f imagepipe -an -r %f -i pipe: -loop -hq -title \"%s\" -y \"%s\"\n",desc.get_frame_rate(),get_canvas()->get_name().c_str(),filename.c_str());
-
- file=popen(command.c_str(),"w");
-
+
+ if( filename.c_str()[0] == '-' )
+ command=strprintf("ffmpeg -f image2pipe -vcodec ppm -an -r %f -i pipe: -loop -hq -title \"%s\" -vcodec mpeg1video -y -- \"%s\"\n",desc.get_frame_rate(),get_canvas()->get_name().c_str(),filename.c_str());
+ else
+ command=strprintf("ffmpeg -f image2pipe -vcodec ppm -an -r %f -i pipe: -loop -hq -title \"%s\" -vcodec mpeg1video -y \"%s\"\n",desc.get_frame_rate(),get_canvas()->get_name().c_str(),filename.c_str());
+
+ file=popen(command.c_str(),POPEN_BINARY_WRITE_TYPE);
+
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+
+ int p[2];
+
+ if (pipe(p)) {
+ synfig::error(_("Unable to open pipe to ffmpeg"));
+ return false;
+ };
+
+ pid = fork();
+
+ if (pid == -1) {
+ synfig::error(_("Unable to open pipe to ffmpeg"));
+ return false;
+ }
+
+ if (pid == 0){
+ // Child process
+ // Close pipeout, not needed
+ close(p[1]);
+ // Dup pipeout to stdin
+ if( dup2( p[0], STDIN_FILENO ) == -1 ){
+ synfig::error(_("Unable to open pipe to ffmpeg"));
+ return false;
+ }
+ // Close the unneeded pipeout
+ close(p[0]);
+ if( filename.c_str()[0] == '-' )
+ execlp("ffmpeg", "ffmpeg", "-f", "image2pipe", "-vcodec", "ppm", "-an", "-r", strprintf("%f", desc.get_frame_rate()).c_str(), "-i", "pipe:", "-loop", "-hq", "-title", get_canvas()->get_name().c_str(), "-vcodec", "mpeg1video", "-y", "--", filename.c_str(), (const char *)NULL);
+ else
+ execlp("ffmpeg", "ffmpeg", "-f", "image2pipe", "-vcodec", "ppm", "-an", "-r", strprintf("%f", desc.get_frame_rate()).c_str(), "-i", "pipe:", "-loop", "-hq", "-title", get_canvas()->get_name().c_str(), "-vcodec", "mpeg1video", "-y", filename.c_str(), (const char *)NULL);
+ // We should never reach here unless the exec failed
+ synfig::error(_("Unable to open pipe to ffmpeg"));
+ return false;
+ } else {
+ // Parent process
+ // Close pipein, not needed
+ close(p[0]);
+ // Save pipeout to file handle, will write to it later
+ file = fdopen(p[1], "wb");
+ }
+
+#else
+ #error There are no known APIs for creating child processes
+#endif
+
// etl::yield();
-
+
if(!file)
{
synfig::error(_("Unable to open pipe to ffmpeg"));
return false;
}
-
+
return true;
}
}
bool
-ffmpeg_trgt::start_frame(synfig::ProgressCallback *callback)
+ffmpeg_trgt::start_frame(synfig::ProgressCallback */*callback*/)
{
int w=desc.get_w(),h=desc.get_h();
-
+
if(!file)
return false;
-
+
fprintf(file, "P6\n");
fprintf(file, "%d %d\n", w, h);
- fprintf(file, "%d\n", 255);
-
+ fprintf(file, "%d\n", 255);
+
delete [] buffer;
buffer=new unsigned char[3*w];
delete [] color_buffer;
color_buffer=new Color[w];
-
+
return true;
}
Color *
-ffmpeg_trgt::start_scanline(int scanline)
+ffmpeg_trgt::start_scanline(int /*scanline*/)
{
return color_buffer;
}
{
if(!file)
return false;
-
+
convert_color_format(buffer, color_buffer, desc.get_w(), PF_RGB, gamma());
if(!fwrite(buffer,1,desc.get_w()*3,file))
return false;
-
+
return true;
}
projects / synfig.git / blobdiff