#include "mptr_ffmpeg.h"
#include <stdio.h>
#include <sys/types.h>
-#include <sys/wait.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 <iostream>
#include <algorithm>
using namespace std;
using namespace etl;
+#if defined(HAVE_FORK) && defined(HAVE_PIPE) && defined(HAVE_WAITPID)
+ #define UNIX_PIPE_TO_PROCESSES
+#elif defined(HAVE__SPAWNLP) && defined(HAVE__PIPE) && defined(HAVE_CWAIT)
+ #define WIN32_PIPE_TO_PROCESSES
+#endif
+
/* === G L O B A L S ======================================================= */
SYNFIG_IMPORTER_INIT(ffmpeg_mptr);
{
fclose(file);
int status;
- waitpid(pid,&status,0);
+#if defined(WIN32_PIPE_TO_PROCESSES)
+ cwait(&status,pid,0);
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+ waitpid(pid,&status,0);
+#endif
}
+#if defined(WIN32_PIPE_TO_PROCESSES)
+
+ int p[2];
+ int stdin_fileno, stdout_fileno;
+
+ if(_pipe(p, 512, O_BINARY | O_NOINHERIT) < 0) {
+ cerr<<"Unable to open pipe to ffmpeg"<<endl;
+ return false;
+ }
+
+ // Save stdin/stdout so we can restore them later
+ stdin_fileno = _dup(_fileno(stdin));
+ stdout_fileno = _dup(_fileno(stdout));
+
+ // ffmpeg should write to the pipe
+ if(_dup2(p[1], _fileno(stdout)) != 0) {
+ cerr<<"Unable to open pipe to ffmpeg"<<endl;
+ return false;
+ }
+
+ /*
+ ffmpeg accepts the input filename on the command-line
+ if(_dup2(_fileno(input), _fileno(stdin)) != 0) {
+ synfig::error(_("Unable to open pipe to ffmpeg"));
+ return false;
+ }
+ */
+
+ pid = _spawnlp(_P_NOWAIT, "ffmpeg", "ffmpeg", "-i", filename.c_str(), "-an", "-f", "image2pipe", "-vcodec", "ppm", "-", (const char *)NULL);
+ if( pid < 0) {
+ cerr<<"Unable to open pipe to ffmpeg"<<endl;
+ return false;
+ }
+
+ // Restore stdin/stdout
+ if(_dup2(stdin_fileno, _fileno(stdin)) != 0) {
+ cerr<<"Unable to open pipe to ffmpeg"<<endl;
+ return false;
+ }
+ if(_dup2(stdout_fileno, _fileno(stdout)) != 0) {
+ cerr<<"Unable to open pipe to ffmpeg"<<endl;
+ return false;
+ }
+ close(stdin_fileno);
+ close(stdout_fileno);
+
+ // Close the pipe write end - ffmpeg uses it
+ close(p[1]);
+
+ // We read data from the read end of the pipe
+ file = fdopen(p[0], "rb");
+
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+
int p[2];
if (pipe(p)) {
file = fdopen(p[0], "rb");
}
+#else
+ #error There are no known APIs for creating child processes
+#endif
+
if(!file)
{
cerr<<"Unable to open pipe to ffmpeg"<<endl;
{
fclose(file);
int status;
+#if defined(WIN32_PIPE_TO_PROCESSES)
+ cwait(&status,pid,0);
+#elif defined(UNIX_PIPE_TO_PROCESSES)
waitpid(pid,&status,0);
+#endif
}
#ifdef HAVE_TERMIOS_H
tcsetattr(0,TCSANOW,&oldtty);
{
if(!seek_to(i))
return false;
- if(!grab_frame());
+ if(!grab_frame())
return false;
}