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d61b415230
And calculate them automatically be default based on the number of frame buffers available and the number of channels. This works around various bugs in the AJA SDK when selecting these manually. See AJA support ticket #5056.
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/* GStreamer
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* Copyright (C) 2021 Sebastian Dröge <sebastian@centricular.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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#pragma once
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#include <gst/base/base.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "gstajacommon.h"
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G_BEGIN_DECLS
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#define GST_TYPE_AJA_SRC (gst_aja_src_get_type())
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#define GST_AJA_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_AJA_SRC, GstAjaSrc))
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#define GST_AJA_SRC_CAST(obj) ((GstAjaSrc *)obj)
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#define GST_AJA_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AJA_SRC, GstAjaSrcClass))
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#define GST_IS_AJA_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_AJA_SRC))
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#define GST_IS_AJA_SRC_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AJA_SRC))
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typedef struct _GstAjaSrc GstAjaSrc;
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typedef struct _GstAjaSrcClass GstAjaSrcClass;
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struct _GstAjaSrc {
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GstPushSrc parent;
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// Everything below protected by queue lock
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GMutex queue_lock;
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GCond queue_cond;
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GstQueueArray *queue;
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gboolean playing;
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gboolean shutdown;
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gboolean flushing;
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GstAjaNtv2Device *device;
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NTV2DeviceID device_id;
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GstAllocator *allocator;
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GstBufferPool *buffer_pool;
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GstBufferPool *audio_buffer_pool;
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GstBufferPool *anc_buffer_pool;
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// Properties
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gchar *device_identifier;
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NTV2Channel channel;
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GstAjaAudioSystem audio_system_setting;
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GstAjaVideoFormat video_format_setting;
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GstAjaSdiMode sdi_mode;
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GstAjaInputSource input_source;
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GstAjaAudioSource audio_source;
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GstAjaTimecodeIndex timecode_index;
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GstAjaReferenceSource reference_source;
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guint queue_size;
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guint start_frame, end_frame;
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guint capture_cpu_core;
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gboolean signal;
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NTV2AudioSystem audio_system;
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NTV2VideoFormat video_format;
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bool quad_mode;
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NTV2VANCMode vanc_mode;
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NTV2InputSource configured_input_source;
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NTV2TCIndex tc_index;
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GstVideoInfo configured_info; // Based on properties
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GstVideoInfo current_info; // Based on properties + stream metadata
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gint configured_audio_channels;
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AJAThread *capture_thread;
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};
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struct _GstAjaSrcClass {
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GstPushSrcClass parent_class;
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};
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G_GNUC_INTERNAL
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GType gst_aja_src_get_type(void);
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G_END_DECLS
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