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/* Copyright (C) 2005 Stefan van der Walt <stefan@sun.ac.za>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include <octave/oct.h>
#include "oct-avifile.h"
DEFINE_OCTAVE_ALLOCATOR(Avifile);
DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA(Avifile, "avifile", "avifile");
Avifile::Avifile(std::string fn) : octave_base_value(),
filename(fn), frames(0), frame_rows(0), frame_columns(0) {
av = new AVHandler();
av->set_filename(fn);
av->set_log(&octave_stdout);
}
Avifile::Avifile(const Avifile& m) {
filename = m.filename;
frames = m.frames;
frame_rows = m.frame_rows;
frame_columns = m.frame_columns;
av = m.av;
octave_stdout << "avifile: copy constructor shouldn't be called" << std::endl;
}
void
Avifile::print(std::ostream& os, bool pr_as_read_syntax = false) const {
os << "AVI movie [" << filename << "][" << av->get_codec() << "]: "
<< frames << " frame" << (frames != 1 ? "s" : "") << ", "
<< frame_rows << "x" << frame_columns << "\n";
}
void
Avifile::addframe(const NDArray &f) {
if (frames == 0) {
if ( (f.columns() % 2 != 0) || (f.rows() % 2 != 0) ) {
error("avifile: matrix dimensions must be multiple of two");
return;
}
if ( (f.columns() == 0) || (f.rows() == 0) ) {
error("avifile: matrix must have non-zero dimensions");
return;
}
frame_columns = f.columns();
frame_rows = f.rows();
av->set_height(frame_rows);
av->set_width(frame_columns);
if (av->setup_write() != 0) {
error("avifile: AVHandler setup failed");
return;
}
}
if ( (frame_columns != f.columns()) ||
(frame_rows != f.rows()) ) {
error("avifile: all frames must have the same dimensions (%dx%d)",
frame_rows, frame_columns);
return;
}
// convert matrix to AVFrame
AVFrame *rgbframe = av->get_rgbframe();
dim_vector d = f.dims();
unsigned char bands = 0;
if ( (d.length() == 3) && (d(2) == 3) ) {
// RGB image
bands = 3;
} else if ( d.length() == 2 ) {
// gray or B&W image
bands = 1;
} else {
error("avifile: invalid matrix dimensions");
return;
}
for (int rgb = 0; rgb < 3; rgb++) {
for (unsigned int y = 0; y < frame_rows; y++) {
for (unsigned int x = 0; x < frame_columns; x++) {
if (bands == 3)
rgbframe->data[0][y * rgbframe->linesize[0] + 3*x + rgb] = (unsigned char)(f(y,x,rgb)*255);
else
rgbframe->data[0][y * rgbframe->linesize[0] + 3*x + rgb] = (unsigned char)(f(y,x)*255);
}
}
}
if (av->write_frame() < 0) {
error("avifile: error writing frame");
return;
}
frames++;
}
Avifile::~Avifile(void) {
octave_stdout << "avifile: writing headers and closing " << filename << std::endl;
delete av;
}