--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file trgt_dv.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
+** 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 ======================================================= */
+
+#define SYNFIG_TARGET
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ETL/stringf>
+#include "trgt_dv.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>
+
+#endif
+
+/* === M A C R O S ========================================================= */
+
+using namespace synfig;
+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(dv_trgt);
+SYNFIG_TARGET_SET_NAME(dv_trgt,"dv");
+SYNFIG_TARGET_SET_EXT(dv_trgt,"dv");
+SYNFIG_TARGET_SET_VERSION(dv_trgt,"0.1");
+SYNFIG_TARGET_SET_CVS_ID(dv_trgt,"$Id$");
+
+/* === M E T H O D S ======================================================= */
+
+
+dv_trgt::dv_trgt(const char *Filename)
+{
+ pid=-1;
+ file=NULL;
+ filename=Filename;
+ buffer=NULL;
+ wide_aspect=false;
+ color_buffer=0;
+ set_remove_alpha();
+
+}
+
+dv_trgt::~dv_trgt()
+{
+ if(file){
+#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;
+ delete [] color_buffer;
+}
+
+bool
+dv_trgt::set_rend_desc(RendDesc *given_desc)
+{
+ // Set the aspect ratio
+ if(wide_aspect)
+ {
+ // 16:9 Aspect
+ given_desc->set_wh(160,90);
+
+ // Widescreen should be progressive scan
+ given_desc->set_interlaced(false);
+ }
+ else
+ {
+ // 4:3 Aspect
+ given_desc->set_wh(400,300);
+
+ // We should be interlaced
+ given_desc->set_interlaced(true);
+ }
+
+ // but the pixel res should be 720x480
+ given_desc->clear_flags(),given_desc->set_wh(720,480);
+
+ // NTSC Frame rate is 29.97
+ given_desc->set_frame_rate(29.97);
+
+ // The pipe to encodedv is PPM, which needs RGB data
+ //given_desc->set_pixel_format(PF_RGB);
+
+ // Set the description
+ desc=*given_desc;
+
+ return true;
+}
+
+bool
+dv_trgt::init()
+{
+ imagecount=desc.get_frame_start();
+
+#if defined(WIN32_PIPE_TO_PROCESSES)
+
+ string command;
+
+ if(wide_aspect)
+ command=strprintf("encodedv -w 1 - > \"%s\"\n",filename.c_str());
+ else
+ command=strprintf("encodedv - > \"%s\"\n",filename.c_str());
+
+ // Open the pipe to encodedv
+ file=popen(command.c_str(),POPEN_BINARY_WRITE_TYPE);
+
+ if(!file)
+ {
+ synfig::error(_("Unable to open pipe to encodedv"));
+ return false;
+ }
+
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+
+ int p[2];
+
+ if (pipe(p)) {
+ synfig::error(_("Unable to open pipe to encodedv"));
+ return false;
+ };
+
+ pid_t pid = fork();
+
+ if (pid == -1) {
+ synfig::error(_("Unable to open pipe to encodedv"));
+ 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 encodedv"));
+ return false;
+ }
+ // Close the unneeded pipeout
+ close(p[0]);
+ // Open filename to stdout
+ FILE* outfile = fopen(filename.c_str(),"wb");
+ if( outfile == NULL ){
+ synfig::error(_("Unable to open pipe to encodedv"));
+ return false;
+ }
+ int outfilefd = fileno(outfile);
+ if( outfilefd == -1 ){
+ synfig::error(_("Unable to open pipe to encodedv"));
+ return false;
+ }
+ if( dup2( outfilefd, STDOUT_FILENO ) == -1 ){
+ synfig::error(_("Unable to open pipe to encodedv"));
+ return false;
+ }
+
+ if(wide_aspect)
+ execlp("encodedv", "encodedv", "-w", "1", "-", (const char *)NULL);
+ else
+ execlp("encodedv", "encodedv", "-", (const char *)NULL);
+ // We should never reach here unless the exec failed
+ synfig::error(_("Unable to open pipe to encodedv"));
+ 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");
+ if (file == NULL) {
+ synfig::error(_("Unable to open pipe to encodedv"));
+ return false;
+ }
+ }
+
+#else
+ #error There are no known APIs for creating child processes
+#endif
+
+
+ // Sleep for a moment to let the pipe catch up
+ etl::clock().sleep(0.25f);
+
+ return true;
+}
+
+void
+dv_trgt::end_frame()
+{
+ fprintf(file, " ");
+ fflush(file);
+ imagecount++;
+}
+
+bool
+dv_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);
+
+ delete [] buffer;
+ buffer=new unsigned char[3*w];
+
+ delete [] color_buffer;
+ color_buffer=new Color[w];
+
+ return true;
+}
+
+Color *
+dv_trgt::start_scanline(int /*scanline*/)
+{
+ return color_buffer;
+}
+
+bool
+dv_trgt::end_scanline()
+{
+ 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