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9ef06d77a7
Saving a reference to this always-present pad simplifies the code and avoids a lot of pad list scans and refcounting. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1746>
106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/*
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* GStreamer
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* Copyright (C) 2018 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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#ifndef __GST_CCCOMBINER_H__
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#define __GST_CCCOMBINER_H__
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#include <gst/gst.h>
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#include <gst/base/base.h>
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#include <gst/video/video.h>
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#include "ccutils.h"
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G_BEGIN_DECLS
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#define GST_TYPE_CCCOMBINER \
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(gst_cc_combiner_get_type())
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#define GST_CCCOMBINER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CCCOMBINER,GstCCCombiner))
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#define GST_CCCOMBINER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CCCOMBINER,GstCCCombinerClass))
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#define GST_IS_CCCOMBINER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CCCOMBINER))
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#define GST_IS_CCCOMBINER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CCCOMBINER))
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typedef struct _GstCCCombiner GstCCCombiner;
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typedef struct _GstCCCombinerClass GstCCCombinerClass;
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/**
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* GstCCCombinerInputProcessing:
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* @CCCOMBINER_INPUT_PROCESSING_APPEND: append aggregated CC to existing metas on video buffers
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* @CCCOMBINER_INPUT_PROCESSING_DROP: drop existing CC metas on input video buffers
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* @CCCOMBINER_INPUT_PROCESSING_FAVOR: discard aggregated CC when input video buffers hold CC metas already
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*
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* Possible processing types for the input-meta-processing property.
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*
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* Since: 1.26
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*/
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typedef enum {
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CCCOMBINER_INPUT_PROCESSING_APPEND = 0,
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CCCOMBINER_INPUT_PROCESSING_DROP,
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CCCOMBINER_INPUT_PROCESSING_FAVOR,
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} GstCCCombinerInputProcessing;
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struct _GstCCCombiner
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{
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GstAggregator parent;
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GstAggregatorPad *video_pad;
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gint video_fps_n, video_fps_d;
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gboolean progressive;
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GstClockTime previous_video_running_time_end;
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GstClockTime current_video_running_time;
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GstClockTime current_video_running_time_end;
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GstBuffer *current_video_buffer;
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GArray *current_frame_captions;
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GstVideoCaptionType caption_type;
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gboolean prop_schedule;
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guint prop_max_scheduled;
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gboolean prop_output_padding;
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CCBufferCea608PaddingStrategy prop_cea608_padding_strategy;
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GstClockTime prop_cea608_valid_padding_timeout;
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GstClockTime prop_schedule_timeout;
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GstCCCombinerInputProcessing prop_input_meta_processing;
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gboolean schedule;
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guint max_scheduled;
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gboolean output_padding;
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guint current_scheduled;
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GstClockTime last_caption_ts;
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CCBuffer *cc_buffer;
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guint16 cdp_hdr_sequence_cntr;
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const struct cdp_fps_entry *cdp_fps_entry;
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};
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struct _GstCCCombinerClass
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{
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GstAggregatorClass parent_class;
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};
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GType gst_cc_combiner_get_type (void);
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GST_ELEMENT_REGISTER_DECLARE (cccombiner);
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G_END_DECLS
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#endif /* __GST_CCCOMBINER_H__ */
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