src/lib/resampler_manager.h

   1 #include "audio_content.h"
   2 #include "dcpomatic_time.h"
   3 #include <boost/noncopyable.hpp>
   4 #include <boost/shared_ptr.hpp>
   5 #include <boost/weak_ptr.hpp>
   6 #include <vector>
   7
   8
   9 class AudioContent;
  10 class AudioDecoder;
  11 class AudioStream;
  12 class Resampler;
  13
  14
  15 class ResamplerManager
  16 {
  17 public:
  18         ResamplerManager (std::weak_ptr<const Film> film)
  19                 : _film (film)
  20         {}
  21
  22         ResamplerManager (ResamplerManager const&) = delete;
  23         ResamplerManager& operator= (ResamplerManager const&) = delete;
  24
  25         void add (dcpomatic::DCPTime start, dcpomatic::DCPTime end, std::shared_ptr<AudioContent> content, std::shared_ptr<AudioDecoder> decoder);
  26         std::shared_ptr<Resampler> get (AudioDecoder* decoder, AudioStreamPtr stream, bool fast);
  27
  28 private:
  29         friend struct resampler_manager_setup_test;
  30
  31         class Group
  32         {
  33         public:
  34                 Group (dcpomatic::DCPTime start_, dcpomatic::DCPTime end_, std::shared_ptr<AudioContent> content, std::shared_ptr<AudioDecoder> decoder)
  35                         : start(start_)
  36                         , end(end_)
  37                 {
  38                         contents.push_back (content);
  39                         decoders.push_back (decoder);
  40                         resamplers.resize (content->streams().size());
  41                 }
  42
  43                 dcpomatic::DCPTime start;
  44                 dcpomatic::DCPTime end;
  45                 std::vector<std::shared_ptr<AudioContent>> contents;
  46                 std::vector<std::shared_ptr<AudioDecoder>> decoders;
  47                 std::vector<std::shared_ptr<Resampler>> resamplers;
  48         };
  49
  50         bool can_share (Group const& a, Group const& b) const;
  51         void coalesce ();
  52         bool coalesce_pass ();
  53
  54         std::weak_ptr<const Film> _film;
  55         std::vector<Group> _groups;
  56 };
  57