204 lines
7.0 KiB
C
204 lines
7.0 KiB
C
/* GStreamer
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* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.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_H265_DECODER_H__
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#define __GST_H265_DECODER_H__
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#include <gst/codecs/codecs-prelude.h>
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#include <gst/video/video.h>
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#include <gst/codecparsers/gsth265parser.h>
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#include <gst/codecs/gsth265picture.h>
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G_BEGIN_DECLS
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#define GST_TYPE_H265_DECODER (gst_h265_decoder_get_type())
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#define GST_H265_DECODER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_H265_DECODER,GstH265Decoder))
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#define GST_H265_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_H265_DECODER,GstH265DecoderClass))
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#define GST_H265_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_H265_DECODER,GstH265DecoderClass))
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#define GST_IS_H265_DECODER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_H265_DECODER))
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#define GST_IS_H265_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_H265_DECODER))
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#define GST_H265_DECODER_CAST(obj) ((GstH265Decoder*)obj)
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typedef struct _GstH265Decoder GstH265Decoder;
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typedef struct _GstH265DecoderClass GstH265DecoderClass;
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typedef struct _GstH265DecoderPrivate GstH265DecoderPrivate;
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/**
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* GstH265Decoder:
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*
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* The opaque #GstH265Decoder data structure.
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*/
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struct _GstH265Decoder
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{
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/*< private >*/
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GstVideoDecoder parent;
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/*< protected >*/
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GstVideoCodecState * input_state;
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GstH265Picture *RefPicSetStCurrBefore[16];
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GstH265Picture *RefPicSetStCurrAfter[16];
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GstH265Picture *RefPicSetStFoll[16];
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GstH265Picture *RefPicSetLtCurr[16];
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GstH265Picture *RefPicSetLtFoll[16];
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guint NumPocStCurrBefore;
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guint NumPocStCurrAfter;
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guint NumPocStFoll;
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guint NumPocLtCurr;
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guint NumPocLtFoll;
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guint NumPicTotalCurr;
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/*< private >*/
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GstH265DecoderPrivate *priv;
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gpointer padding[GST_PADDING_LARGE];
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};
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/**
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* GstH265DecoderClass:
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*
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* The opaque #GstH265DecoderClass data structure.
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*/
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struct _GstH265DecoderClass
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{
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GstVideoDecoderClass parent_class;
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/**
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* GstH265DecoderClass::new_sequence:
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* @decoder: a #GstH265Decoder
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* @sps: a #GstH265SPS
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* @max_dpb_size: the size of dpb including preferred output delay
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* by subclass reported via get_preferred_output_delay method.
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*
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* Notifies subclass of video sequence update
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*/
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GstFlowReturn (*new_sequence) (GstH265Decoder * decoder,
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const GstH265SPS * sps,
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gint max_dpb_size);
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/**
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* GstH265DecoderClass::new_picture:
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* @decoder: a #GstH265Decoder
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* @frame: (transfer none): a #GstVideoCodecFrame
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* @picture: (transfer none): a #GstH265Picture
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*
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* Optional. Called whenever new #GstH265Picture is created.
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* Subclass can set implementation specific user data
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* on the #GstH265Picture via gst_h265_picture_set_user_data
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*/
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GstFlowReturn (*new_picture) (GstH265Decoder * decoder,
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GstVideoCodecFrame * frame,
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GstH265Picture * picture);
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/**
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* GstH265DecoderClass::start_picture:
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* @decoder: a #GstH265Decoder
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* @picture: (transfer none): a #GstH265Picture
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* @slice: (transfer none): a #GstH265Slice
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* @dpb: (transfer none): a #GstH265Dpb
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*
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* Optional. Called per one #GstH265Picture to notify subclass to prepare
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* decoding process for the #GstH265Picture
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*/
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GstFlowReturn (*start_picture) (GstH265Decoder * decoder,
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GstH265Picture * picture,
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GstH265Slice * slice,
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GstH265Dpb * dpb);
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/**
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* GstH265DecoderClass::decode_slice:
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* @decoder: a #GstH265Decoder
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* @picture: (transfer none): a #GstH265Picture
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* @slice: (transfer none): a #GstH265Slice
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* @ref_pic_list0: (element-type GstH265Picture) (transfer none):
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* an array of #GstH265Picture pointers
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* @ref_pic_list1: (element-type GstH265Picture) (transfer none):
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* an array of #GstH265Picture pointers
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*
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* Provides per slice data with parsed slice header and required raw bitstream
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* for subclass to decode it. If gst_h265_decoder_set_process_ref_pic_lists()
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* is called with %TRUE by the subclass, @ref_pic_list0 and @ref_pic_list1
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* are non-%NULL.
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*/
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GstFlowReturn (*decode_slice) (GstH265Decoder * decoder,
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GstH265Picture * picture,
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GstH265Slice * slice,
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GArray * ref_pic_list0,
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GArray * ref_pic_list1);
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/**
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* GstH265DecoderClass::end_picture:
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* @decoder: a #GstH265Decoder
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* @picture: (transfer none): a #GstH265Picture
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*
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* Optional. Called per one #GstH265Picture to notify subclass to finish
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* decoding process for the #GstH265Picture
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*/
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GstFlowReturn (*end_picture) (GstH265Decoder * decoder,
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GstH265Picture * picture);
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/**
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* GstH265DecoderClass:output_picture:
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* @decoder: a #GstH265Decoder
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* @frame: (transfer full): a #GstVideoCodecFrame
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* @picture: (transfer full): a #GstH265Picture
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*
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* Called with a #GstH265Picture which is required to be outputted.
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*/
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GstFlowReturn (*output_picture) (GstH265Decoder * decoder,
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GstVideoCodecFrame * frame,
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GstH265Picture * picture);
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/**
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* GstH265DecoderClass::get_preferred_output_delay:
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* @decoder: a #GstH265Decoder
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* @live: whether upstream is live or not
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*
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* Optional. Called by baseclass to query whether delaying output is
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* preferred by subclass or not.
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*
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* Returns: the number of perferred delayed output frame
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*
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* Since: 1.22
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*/
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guint (*get_preferred_output_delay) (GstH265Decoder * decoder,
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gboolean live);
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/*< private >*/
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gpointer padding[GST_PADDING_LARGE];
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};
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstH265Decoder, gst_object_unref)
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GST_CODECS_API
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GType gst_h265_decoder_get_type (void);
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GST_CODECS_API
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void gst_h265_decoder_set_process_ref_pic_lists (GstH265Decoder * decoder,
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gboolean process);
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GST_CODECS_API
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GstH265Picture * gst_h265_decoder_get_picture (GstH265Decoder * decoder,
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guint32 system_frame_number);
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G_END_DECLS
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#endif /* __GST_H265_DECODER_H__ */
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