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fafc8e564c
When the mode of decklinkvideosink is set to "auto", the sink claims to support the full set of caps that it can support for all modes. Then, every time new caps are set, the sink will automatically find the correct mode for these caps and set it. Caveat: We have no way to know whether a specific mode will actually work for your hardware. Therefore, if you try sending 4K video to a 1080 screen, it will silently fail, we have no way to know that in advance. Manually setting that mode at least gave the user a way to double-check what they are doing. https://bugzilla.gnome.org/show_bug.cgi?id=759600
197 lines
6.1 KiB
C
197 lines
6.1 KiB
C
/* GStreamer
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* Copyright (C) 2011 David Schleef <ds@schleef.org>
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* Copyright (C) 2014 Sebastian Dröge <sebastian@centricular.com>
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* Copyright (C) 2015 Florian Langlois <florian.langlois@fr.thalesgroup.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _GST_DECKLINK_H_
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#define _GST_DECKLINK_H_
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#include <gst/gst.h>
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#ifdef G_OS_UNIX
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#include "linux/DeckLinkAPI.h"
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#endif
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#ifdef G_OS_WIN32
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#include "win/DeckLinkAPI.h"
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#include <comutil.h>
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#define bool BOOL
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#define COMSTR_T BSTR*
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#define FREE_COM_STRING(s) delete[] s;
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#define CONVERT_COM_STRING(s) BSTR _s = (BSTR)s; s = _com_util::ConvertBSTRToString(_s); ::SysFreeString(_s);
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#else
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#define COMSTR_T char*
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#define FREE_COM_STRING(s) free ((void *) s)
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#define CONVERT_COM_STRING(s)
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#endif /* _MSC_VER */
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typedef enum {
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GST_DECKLINK_MODE_AUTO,
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GST_DECKLINK_MODE_NTSC,
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GST_DECKLINK_MODE_NTSC2398,
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GST_DECKLINK_MODE_PAL,
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GST_DECKLINK_MODE_NTSC_P,
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GST_DECKLINK_MODE_PAL_P,
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GST_DECKLINK_MODE_1080p2398,
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GST_DECKLINK_MODE_1080p24,
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GST_DECKLINK_MODE_1080p25,
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GST_DECKLINK_MODE_1080p2997,
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GST_DECKLINK_MODE_1080p30,
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GST_DECKLINK_MODE_1080i50,
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GST_DECKLINK_MODE_1080i5994,
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GST_DECKLINK_MODE_1080i60,
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GST_DECKLINK_MODE_1080p50,
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GST_DECKLINK_MODE_1080p5994,
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GST_DECKLINK_MODE_1080p60,
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GST_DECKLINK_MODE_720p50,
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GST_DECKLINK_MODE_720p5994,
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GST_DECKLINK_MODE_720p60,
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GST_DECKLINK_MODE_1556p2398,
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GST_DECKLINK_MODE_1556p24,
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GST_DECKLINK_MODE_1556p25,
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GST_DECKLINK_MODE_2160p2398,
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GST_DECKLINK_MODE_2160p24,
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GST_DECKLINK_MODE_2160p25,
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GST_DECKLINK_MODE_2160p2997,
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GST_DECKLINK_MODE_2160p30,
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GST_DECKLINK_MODE_2160p50,
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GST_DECKLINK_MODE_2160p5994,
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GST_DECKLINK_MODE_2160p60
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} GstDecklinkModeEnum;
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#define GST_TYPE_DECKLINK_MODE (gst_decklink_mode_get_type ())
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GType gst_decklink_mode_get_type (void);
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typedef enum {
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GST_DECKLINK_CONNECTION_AUTO,
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GST_DECKLINK_CONNECTION_SDI,
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GST_DECKLINK_CONNECTION_HDMI,
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GST_DECKLINK_CONNECTION_OPTICAL_SDI,
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GST_DECKLINK_CONNECTION_COMPONENT,
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GST_DECKLINK_CONNECTION_COMPOSITE,
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GST_DECKLINK_CONNECTION_SVIDEO
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} GstDecklinkConnectionEnum;
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#define GST_TYPE_DECKLINK_CONNECTION (gst_decklink_connection_get_type ())
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GType gst_decklink_connection_get_type (void);
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typedef enum {
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GST_DECKLINK_AUDIO_CONNECTION_AUTO,
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GST_DECKLINK_AUDIO_CONNECTION_EMBEDDED,
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GST_DECKLINK_AUDIO_CONNECTION_AES_EBU,
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GST_DECKLINK_AUDIO_CONNECTION_ANALOG,
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GST_DECKLINK_AUDIO_CONNECTION_ANALOG_XLR,
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GST_DECKLINK_AUDIO_CONNECTION_ANALOG_RCA
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} GstDecklinkAudioConnectionEnum;
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#define GST_TYPE_DECKLINK_AUDIO_CONNECTION (gst_decklink_audio_connection_get_type ())
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GType gst_decklink_audio_connection_get_type (void);
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typedef struct _GstDecklinkMode GstDecklinkMode;
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struct _GstDecklinkMode {
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BMDDisplayMode mode;
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int width;
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int height;
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int fps_n;
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int fps_d;
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gboolean interlaced;
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int par_n;
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int par_d;
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gboolean tff;
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const gchar *colorimetry;
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};
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const GstDecklinkMode * gst_decklink_get_mode (GstDecklinkModeEnum e);
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const GstDecklinkModeEnum gst_decklink_get_mode_enum_from_bmd (BMDDisplayMode mode);
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const BMDVideoConnection gst_decklink_get_connection (GstDecklinkConnectionEnum e);
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GstCaps * gst_decklink_mode_get_caps (GstDecklinkModeEnum e);
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GstCaps * gst_decklink_mode_get_template_caps (void);
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typedef struct _GstDecklinkOutput GstDecklinkOutput;
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struct _GstDecklinkOutput {
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IDeckLink *device;
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IDeckLinkOutput *output;
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GstClock *clock;
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GstClockTime clock_start_time, clock_last_time, clock_epoch;
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GstClockTimeDiff clock_offset;
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gboolean started, clock_restart;
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/* Everything below protected by mutex */
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GMutex lock;
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/* Set by the video source */
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/* Configured mode or NULL */
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const GstDecklinkMode *mode;
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/* Set by the audio sink */
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GstClock *audio_clock;
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GstElement *audiosink;
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gboolean audio_enabled;
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GstElement *videosink;
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gboolean video_enabled;
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void (*start_scheduled_playback) (GstElement *videosink);
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};
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typedef struct _GstDecklinkInput GstDecklinkInput;
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struct _GstDecklinkInput {
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IDeckLink *device;
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IDeckLinkInput *input;
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IDeckLinkConfiguration *config;
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IDeckLinkAttributes *attributes;
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GstClock *clock;
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GstClockTime clock_start_time, clock_offset, clock_last_time, clock_epoch;
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gboolean started, clock_restart;
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/* Everything below protected by mutex */
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GMutex lock;
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/* Set by the video source */
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void (*got_video_frame) (GstElement *videosrc, IDeckLinkVideoInputFrame * frame, GstDecklinkModeEnum mode, GstClockTime capture_time, GstClockTime capture_duration);
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/* Configured mode or NULL */
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const GstDecklinkMode *mode;
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/* Set by the audio source */
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void (*got_audio_packet) (GstElement *videosrc, IDeckLinkAudioInputPacket * packet, GstClockTime capture_time);
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GstElement *audiosrc;
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gboolean audio_enabled;
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GstElement *videosrc;
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gboolean video_enabled;
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void (*start_streams) (GstElement *videosrc);
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};
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GstDecklinkOutput * gst_decklink_acquire_nth_output (gint n, GstElement * sink, gboolean is_audio);
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void gst_decklink_release_nth_output (gint n, GstElement * sink, gboolean is_audio);
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void gst_decklink_output_set_audio_clock (GstDecklinkOutput * output, GstClock * clock);
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GstClock * gst_decklink_output_get_audio_clock (GstDecklinkOutput * output);
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GstDecklinkInput * gst_decklink_acquire_nth_input (gint n, GstElement * src, gboolean is_audio);
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void gst_decklink_release_nth_input (gint n, GstElement * src, gboolean is_audio);
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const GstDecklinkMode * gst_decklink_find_mode_for_caps (GstCaps * caps);
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#endif
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