+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file mptr_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
-** 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 ======================================================= */
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <ETL/stringf>
-#include "mptr_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 <iostream>
-#include <algorithm>
-#include <functional>
-#include <ETL/stringf>
-#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_IMPORTER_INIT(ffmpeg_mptr);
-SYNFIG_IMPORTER_SET_NAME(ffmpeg_mptr,"ffmpeg");
-SYNFIG_IMPORTER_SET_EXT(ffmpeg_mptr,"avi");
-SYNFIG_IMPORTER_SET_VERSION(ffmpeg_mptr,"0.1");
-SYNFIG_IMPORTER_SET_CVS_ID(ffmpeg_mptr,"$Id$");
-
-/* === M E T H O D S ======================================================= */
-
-bool ffmpeg_mptr::is_animated()
-{
- return true;
-}
-
-bool
-ffmpeg_mptr::seek_to(int frame)
-{
- if(frame<cur_frame || !file)
- {
- 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
- }
-
-#if defined(WIN32_PIPE_TO_PROCESSES)
-
- string command;
-
- command=strprintf("ffmpeg -ss 00:00:00.%d -i \"%s\" -an -f image2pipe -vcodec ppm -\n",frame,filename.c_str());
-
- file=popen(command.c_str(),POPEN_BINARY_READ_TYPE);
-
-#elif defined(UNIX_PIPE_TO_PROCESSES)
-
- int p[2];
-
- if (pipe(p)) {
- cerr<<"Unable to open pipe to ffmpeg"<<endl;
- return false;
- };
-
- pid = fork();
-
- if (pid == -1) {
- cerr<<"Unable to open pipe to ffmpeg"<<endl;
- return false;
- }
-
- if (pid == 0){
- // Child process
- // Close pipein, not needed
- close(p[0]);
- // Dup pipein to stdout
- if( dup2( p[1], STDOUT_FILENO ) == -1 ){
- cerr<<"Unable to open pipe to ffmpeg"<<endl;
- return false;
- }
- // Close the unneeded pipein
- close(p[1]);
- string time = strprintf("00:00:00.%d",frame);
- execlp("ffmpeg", "ffmpeg", "-ss", time.c_str(), "-i", filename.c_str(), "-an", "-f", "image2pipe", "-vcodec", "ppm", "-", (const char *)NULL);
- // We should never reach here unless the exec failed
- cerr<<"Unable to open pipe to ffmpeg"<<endl;
- _exit(1);
- } else {
- // Parent process
- // Close pipeout, not needed
- close(p[1]);
- // Save pipein to file handle, will read from it later
- 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;
- return false;
- }
- cur_frame=-1;
- }
-
- while(cur_frame<frame-1)
- {
- cerr<<"Seeking to..."<<frame<<'('<<cur_frame<<')'<<endl;
- if(!grab_frame())
- return false;
- }
- return true;
-}
-
-bool
-ffmpeg_mptr::grab_frame(void)
-{
- if(!file)
- {
- cerr<<"unable to open "<<filename<<endl;
- return false;
- }
- int w,h;
- float divisor;
- char cookie[2];
- cookie[0]=fgetc(file);
-
- if(feof(file))
- return false;
-
- cookie[1]=fgetc(file);
-
- if(cookie[0]!='P' || cookie[1]!='6')
- {
- cerr<<"stream not in PPM format \""<<cookie[0]<<cookie[1]<<'"'<<endl;
- return false;
- }
-
- fgetc(file);
- fscanf(file,"%d %d\n",&w,&h);
- fscanf(file,"%f",&divisor);
- fgetc(file);
-
- if(feof(file))
- return false;
-
- int x;
- int y;
- frame.set_wh(w,h);
- for(y=0;y<frame.get_h();y++)
- for(x=0;x<frame.get_w();x++)
- {
- if(feof(file))
- return false;
-/*
- frame[y][x]=Color(
- (float)(unsigned char)fgetc(file)/divisor,
- (float)(unsigned char)fgetc(file)/divisor,
- (float)(unsigned char)fgetc(file)/divisor,
- 1.0
-*/
- float r=gamma().r_U8_to_F32((unsigned char)fgetc(file));
- float g=gamma().g_U8_to_F32((unsigned char)fgetc(file));
- float b=gamma().b_U8_to_F32((unsigned char)fgetc(file));
- frame[y][x]=Color(
- r,
- g,
- b,
- 1.0
- );
- }
- cur_frame++;
- return true;
-}
-
-ffmpeg_mptr::ffmpeg_mptr(const char *f)
-{
- pid=-1;
-#ifdef HAVE_TERMIOS_H
- tcgetattr (0, &oldtty);
-#endif
- filename=f;
- file=NULL;
- fps=23.98;
- cur_frame=-1;
-}
-
-ffmpeg_mptr::~ffmpeg_mptr()
-{
- 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
- }
-#ifdef HAVE_TERMIOS_H
- tcsetattr(0,TCSANOW,&oldtty);
-#endif
-}
-
-bool
-ffmpeg_mptr::get_frame(synfig::Surface &surface,Time time, synfig::ProgressCallback *)
-{
- int i=(int)(time*fps);
- if(i!=cur_frame)
- {
- if(!seek_to(i))
- return false;
- if(!grab_frame())
- return false;
- }
-
- surface=frame;
- return true;
-}
projects / synfig.git / blobdiff