using boost::shared_ptr;
using libdcp::Size;
-ImageMagickDecoder::ImageMagickDecoder (shared_ptr<const Film> f, shared_ptr<ImageMagickContent> c)
+ImageMagickDecoder::ImageMagickDecoder (shared_ptr<const Film> f, shared_ptr<const ImageMagickContent> c)
: Decoder (f)
- , VideoDecoder (f, c)
+ , VideoDecoder (f)
, _imagemagick_content (c)
, _position (0)
{