+++ /dev/null
-/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
-
- This program 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 program 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.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-/** @file src/tiff_decoder.cc
- * @brief A decoder which reads a numbered set of TIFF files, one per frame.
- */
-
-#include <vector>
-#include <string>
-#include <iostream>
-#include <stdint.h>
-#include <boost/shared_ptr.hpp>
-#include <boost/filesystem.hpp>
-#include <tiffio.h>
-extern "C" {
-#include <libavformat/avformat.h>
-}
-#include "util.h"
-#include "tiff_decoder.h"
-#include "exceptions.h"
-#include "image.h"
-#include "options.h"
-#include "film.h"
-
-using std::cout;
-using std::string;
-using std::stringstream;
-using boost::shared_ptr;
-
-/** @param f Our Film.
- * @param o Options.
- * @param j Job that we are associated with, or 0.
- */
-TIFFDecoder::TIFFDecoder (boost::shared_ptr<Film> f, boost::shared_ptr<const Options> o, Job* j)
- : Decoder (f, o, j)
-{
- string const dir = _film->content_path ();
-
- if (!boost::filesystem::is_directory (dir)) {
- throw DecodeError ("TIFF content must be in a directory");
- }
-
- for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (dir); i != boost::filesystem::directory_iterator(); ++i) {
- /* Aah, the sweet smell of progress */
-#if BOOST_FILESYSTEM_VERSION == 3
- string const ext = boost::filesystem::path(*i).extension().string();
- string const l = boost::filesystem::path(*i).leaf().generic_string();
-#else
- string const ext = boost::filesystem::path(*i).extension();
- string const l = i->leaf ();
-#endif
- if (ext == ".tif" || ext == ".tiff") {
- _files.push_back (l);
- }
- }
-
- _files.sort ();
-
- _iter = _files.begin ();
-}
-
-float
-TIFFDecoder::frames_per_second () const
-{
- /* We don't know */
- return 0;
-}
-
-Size
-TIFFDecoder::native_size () const
-{
- if (_files.empty ()) {
- throw DecodeError ("no TIFF files found");
- }
-
- TIFF* t = TIFFOpen (file_path (_files.front()).c_str (), "r");
- if (t == 0) {
- throw DecodeError ("could not open TIFF file");
- }
-
- uint32_t width;
- TIFFGetField (t, TIFFTAG_IMAGEWIDTH, &width);
- uint32_t height;
- TIFFGetField (t, TIFFTAG_IMAGELENGTH, &height);
-
- return Size (width, height);
-}
-
-int
-TIFFDecoder::audio_channels () const
-{
- /* No audio */
- return 0;
-}
-
-int
-TIFFDecoder::audio_sample_rate () const
-{
- return 0;
-}
-
-int64_t
-TIFFDecoder::audio_channel_layout () const
-{
- return 0;
-}
-
-bool
-TIFFDecoder::pass ()
-{
- if (_iter == _files.end ()) {
- return true;
- }
-
- TIFF* t = TIFFOpen (file_path (*_iter).c_str (), "r");
- if (t == 0) {
- throw DecodeError ("could not open TIFF file");
- }
-
- uint32_t width;
- TIFFGetField (t, TIFFTAG_IMAGEWIDTH, &width);
- uint32_t height;
- TIFFGetField (t, TIFFTAG_IMAGELENGTH, &height);
-
- int const num_pixels = width * height;
- uint32_t * raster = (uint32_t *) _TIFFmalloc (num_pixels * sizeof (uint32_t));
- if (raster == 0) {
- throw DecodeError ("could not allocate memory to decode TIFF file");
- }
-
- if (TIFFReadRGBAImage (t, width, height, raster, 0) < 0) {
- throw DecodeError ("could not read TIFF data");
- }
-
- shared_ptr<CompactImage> image (new CompactImage (PIX_FMT_RGB24, Size (width, height)));
-
- uint8_t* p = image->data()[0];
- for (uint32_t y = 0; y < height; ++y) {
- for (uint32_t x = 0; x < width; ++x) {
- uint32_t const i = (height - y - 1) * width + x;
- *p++ = raster[i] & 0xff;
- *p++ = (raster[i] & 0xff00) >> 8;
- *p++ = (raster[i] & 0xff0000) >> 16;
- }
- }
-
- _TIFFfree (raster);
- TIFFClose (t);
-
- emit_video (image);
-
- ++_iter;
- return false;
-}
-
-/** @param file name within our content directory
- * @return full path to the file
- */
-string
-TIFFDecoder::file_path (string f) const
-{
- stringstream s;
- s << _film->content_path() << "/" << f;
- return _film->file (s.str ());
-}
-
-PixelFormat
-TIFFDecoder::pixel_format () const
-{
- return PIX_FMT_RGB24;
-}
-
-int
-TIFFDecoder::time_base_numerator () const
-{
- return dcp_frame_rate(_film->frames_per_second()).frames_per_second;
-}
-
-
-int
-TIFFDecoder::time_base_denominator () const
-{
- return 1;
-}
-
-int
-TIFFDecoder::sample_aspect_ratio_numerator () const
-{
- /* XXX */
- return 1;
-}
-
-int
-TIFFDecoder::sample_aspect_ratio_denominator () const
-{
- /* XXX */
- return 1;
-}
projects / dcpomatic.git / blobdiff