[Olena-patches] olena-2.0-22-gb4ca8d4 Improve the (movie) output of apps/morphers/iz.

* apps/morphers/iz.cc (save_colorized): Skip consecutive identical frames. Swap the frame reconstruction and write operations, so that the last frame is eventually saved. * apps/morphers/Makefile.am (tmp_iz.avi): Use a speedup of 50 instead of 10. --- milena/ChangeLog | 11 +++++++++++ milena/apps/morphers/Makefile.am | 2 +- milena/apps/morphers/iz.cc | 21 +++++++++++++-------- 3 files changed, 25 insertions(+), 9 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index a8c9cad..fdb278b 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,16 @@ 2012-06-21 Roland Levillain &lt;roland(a)lrde.epita.fr&gt; + Improve the (movie) output of apps/morphers/iz. + + * apps/morphers/iz.cc (save_colorized): Skip consecutive identical + frames. + Swap the frame reconstruction and write operations, so that the + last frame is eventually saved. + * apps/morphers/Makefile.am (tmp_iz.avi): Use a speedup of 50 + instead of 10. + +2012-06-21 Roland Levillain &lt;roland(a)lrde.epita.fr&gt; + Use the lazy recorder morpher in apps/morphers/iz. * apps/morphers/iz.cc (main): Here. diff --git a/milena/apps/morphers/Makefile.am b/milena/apps/morphers/Makefile.am index 829ba8a..309e089 100644 --- a/milena/apps/morphers/Makefile.am +++ b/milena/apps/morphers/Makefile.am @@ -52,7 +52,7 @@ iz_output.ppm: iz$(EXEEXT) iz_input.pbm ./$< $(srcdir)/iz_input.pbm $@ # Likewise, the dependency of this target is a (wrong) shortcut. tmp_iz.avi: iz_output.ppm - mencoder "mf://tmp_iz*.png" -o tmp_iz.avi -ovc lavc -lavcopts vcodec=mjpeg -speed 10 + mencoder "mf://tmp_iz*.png" -o tmp_iz.avi -ovc lavc -lavcopts vcodec=mjpeg -speed 50 endif HAVE_MAGICKXX MOSTLYCLEANFILES = \ diff --git a/milena/apps/morphers/iz.cc b/milena/apps/morphers/iz.cc index 729b2f9..4216dc5 100644 --- a/milena/apps/morphers/iz.cc +++ b/milena/apps/morphers/iz.cc @@ -43,19 +43,24 @@ save_colorized(const mln::decorated_image< I, lazy_recorder<I> >& rec, const std::string& prefix) { mln_concrete(I) frame = mln::duplicate(rec.decoration().initial); + std::stringstream s; + s << std::setfill ('0') << std::setw (6) << 0; + mln::io::magick::save(mln::labeling::colorize(mln::value::rgb8(), frame), + prefix + s.str() + ".png"); for (size_t i = 0; i < rec.decoration().sequence.size(); ++i) { + // Next change (`frame(p)' is assigned the value `v' in the next + // frame). + mln_psite(I) p = rec.decoration().sequence[i].first; + mln_value(I) v = rec.decoration().sequence[i].second; + // Skip consecutive identical frames. + if (frame(p) == v) + continue; + frame(p) = v; std::stringstream s; - s << std::setfill ('0') << std::setw (6) << i; + s << std::setfill ('0') << std::setw (6) << i + 1; mln::io::magick::save(mln::labeling::colorize(mln::value::rgb8(), frame), prefix + s.str() + ".png"); - // Apply the I-th change to the next frame. - // - // Changes are applied after the I-th image has been written, - // to mimic the behavior of the original recorder morpher (see - // recorder.hh). - frame(rec.decoration().sequence[i].first) = - rec.decoration().sequence[i].second; } } -- 1.7.2.5