modules/stream_out/sdi/DBMSDIOutput.hpp

   1 /*****************************************************************************
   2  * DBMSDIOutput.hpp: Decklink SDI Output
   3  *****************************************************************************
   4  * Copyright © 2014-2016 VideoLAN and VideoLAN Authors
   5  *                  2018 VideoLabs
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU Lesser General Public License as published by
   9  * the Free Software Foundation; either version 2.1 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public License
  18  * along with this program; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  20  *****************************************************************************/
  21 #ifndef DBMSDIOUTPUT_HPP
  22 #define DBMSDIOUTPUT_HPP
  23
  24 #include "SDIOutput.hpp"
  25
  26 #include <vlc_es.h>
  27
  28 #include <DeckLinkAPI.h>
  29
  30 namespace sdi_sout
  31 {
  32     class DBMSDIOutput : public SDIOutput
  33     {
  34         public:
  35             DBMSDIOutput(sout_stream_t *);
  36             ~DBMSDIOutput();
  37             virtual AbstractStream *Add(const es_format_t *); /* reimpl */
  38             virtual int Open(); /* impl */
  39             virtual int Process(); /* impl */
  40
  41         protected:
  42             int ProcessVideo(picture_t *);
  43             int ProcessAudio(block_t *);
  44             virtual int ConfigureVideo(const video_format_t *); /* impl */
  45             virtual int ConfigureAudio(const audio_format_t *); /* impl */
  46
  47         private:
  48             IDeckLink *p_card;
  49             IDeckLinkOutput *p_output;
  50
  51             BMDTimeScale timescale;
  52             BMDTimeValue frameduration;
  53             vlc_tick_t lasttimestamp;
  54             /* XXX: workaround card clock drift */
  55             vlc_tick_t offset;
  56
  57             bool b_running;
  58             int Start();
  59             const char *ErrorToString(long i_code);
  60             IDeckLinkDisplayMode * MatchDisplayMode(const video_format_t *,
  61                                                     BMDDisplayMode = bmdDisplayModeNotSupported);
  62             int doProcessVideo(picture_t *);
  63             picture_t * CreateNoSignalPicture(const char*, const video_format_t *);
  64     };
  65 }
  66
  67 #endif // DBMSDIOUTPUT_HPP