- try {
- o.reset (new Options (fs->dir ("thumbs"), ".png", ""));
- o->out_size = fs->size ();
- o->apply_crop = false;
- o->decode_audio = false;
- o->decode_video_frequency = 128;
- o->decode_subtitles = true;
- shared_ptr<ImageMagickEncoder> e (new ImageMagickEncoder (fs, o, _log));
- Transcoder w (fs, o, this, _log, e);
- w.go ();
+ /* Set the film's length to either
+ a) a length judged by running through the content or
+ b) the length from a decoder's header.
+ */
+ if (!_film->trust_content_header()) {
+ /* Decode the content to get an accurate length */
+
+ /* We don't want to use any existing length here, as progress
+ will be messed up.
+ */
+ _film->unset_length ();
+ _film->set_crop (Crop ());