/*****************************************************************************
* DBMSDIOutput.hpp: Decklink SDI Output
*****************************************************************************
* Copyright © 2014-2016 VideoLAN and VideoLAN Authors
* 2018 VideoLabs
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef DBMSDIOUTPUT_HPP
#define DBMSDIOUTPUT_HPP
#include "SDIOutput.hpp"
#include <vlc_es.h>
#include <vlc_threads.h>
#include "../../access/vlc_decklink.h"
namespace sdi_sout
{
class DBMSDIOutput : public SDIOutput,
public IDeckLinkVideoOutputCallback
{
public:
DBMSDIOutput(sout_stream_t *);
~DBMSDIOutput();
virtual AbstractStream *Add(const es_format_t *); /* reimpl */
virtual int Open(); /* impl */
virtual int Process(); /* impl */
virtual HRESULT STDMETHODCALLTYPE QueryInterface (REFIID, LPVOID *);
virtual ULONG STDMETHODCALLTYPE AddRef ();
virtual ULONG STDMETHODCALLTYPE Release ();
virtual HRESULT STDMETHODCALLTYPE ScheduledFrameCompleted (IDeckLinkVideoFrame *, BMDOutputFrameCompletionResult);
virtual HRESULT STDMETHODCALLTYPE ScheduledPlaybackHasStopped (void);
protected:
int ProcessVideo(picture_t *, block_t *);
int ProcessAudio(block_t *);
virtual int ConfigureVideo(const video_format_t *); /* impl */
virtual int ConfigureAudio(const audio_format_t *); /* impl */
private:
IDeckLink *p_card;
IDeckLinkOutput *p_output;
BMDTimeScale timescale;
BMDTimeValue frameduration;
vlc_tick_t lasttimestamp;
/* XXX: workaround card clock drift */
struct
{
vlc_tick_t offset; /* > 0 if clock card is slower */
vlc_tick_t system_reference;
BMDTimeValue hardware_reference;
} clock;
bool b_running;
vlc_tick_t streamStartTime;
int StartPlayback();
struct
{
vlc_mutex_t lock; /* Driver calls callback... until buffer is empty :/ */
vlc_cond_t cond;
vlc_thread_t thread;
bool canceled;
} feeder;
static void *feederThreadCallback(void *);
void feederThread();
int doSchedule();
int doProcessVideo(picture_t *, block_t *);
int FeedOneFrame();
int FeedAudio(vlc_tick_t, vlc_tick_t, bool);
void checkClockDrift();
bool isDrained();
};
}
#endif // DBMSDIOUTPUT_HPP
¤ Dauer der Verarbeitung: 0.2 Sekunden
(vorverarbeitet am 2026-11-04)
¤
*© Formatika GbR, Deutschland