src/lib/j2k_encoder_cpu_backend.cc

   1 #include "config.h"
   2 #include "cross.h"
   3 #include "dcp_video.h"
   4 #include "dcpomatic_log.h"
   5 #include "j2k_encoder_cpu_backend.h"
   6 #include "player_video.h"
   7 #include <dcp/j2k.h>
   8
   9 #include "i18n.h"
  10
  11
  12 using std::string;
  13 using std::vector;
  14 using boost::optional;
  15 using boost::shared_ptr;
  16 using dcp::Data;
  17
  18
  19 vector<Data>
  20 J2KEncoderCPUBackend::encode (vector<shared_ptr<DCPVideo> > all_video)
  21 {
  22         DCPOMATIC_ASSERT (all_video.size() == 1);
  23         shared_ptr<DCPVideo> video = all_video.front();
  24
  25         try {
  26                 LOG_TIMING ("start-local-encode thread=%1 frame=%2", thread_id(), video->index());
  27                 string const comment = Config::instance()->dcp_j2k_comment();
  28
  29                 Data enc = dcp::compress_j2k (
  30                         DCPVideo::convert_to_xyz (video->frame(), boost::bind(&Log::dcp_log, dcpomatic_log.get(), _1, _2)),
  31                         video->j2k_bandwidth(),
  32                         video->frames_per_second(),
  33                         video->frame()->eyes() == EYES_LEFT || video->frame()->eyes() == EYES_RIGHT,
  34                         video->resolution() == RESOLUTION_4K,
  35                         comment.empty() ? "libdcp" : comment
  36                         );
  37
  38                 switch (video->frame()->eyes()) {
  39                 case EYES_BOTH:
  40                         LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for mono"), video->index());
  41                         break;
  42                 case EYES_LEFT:
  43                         LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for L"), video->index());
  44                         break;
  45                 case EYES_RIGHT:
  46                         LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for R"), video->index());
  47                         break;
  48                 default:
  49                         break;
  50                 }
  51
  52                 LOG_TIMING ("finish-local-encode thread=%1 frame=%2", thread_id(), video->index());
  53                 vector<Data> data;
  54                 data.push_back (enc);
  55                 return data;
  56         } catch (std::exception& e) {
  57                 /* This is very bad, so don't cope with it, just pass it on */
  58                 LOG_ERROR (N_("Local encode failed (%1)"), e.what());
  59                 throw;
  60         }
  61 }
  62