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00d04784d3
This introduce a library which contains a set of base classes which handles the parsing and the state tracking for the purpose of decoding different CODECs. Currently H264, H265 and VP9 are supported. These bases classes are used to decode with low level decoding API like DXVA, NVDEC, VDPAU, VAAPI and V4L2 State Less decoders. The new library is named gstreamer-codecs-1.0 / libgstcodecs.
213 lines
5.5 KiB
C
213 lines
5.5 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_H264_PICTURE_H__
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#define __GST_H264_PICTURE_H__
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#include <gst/codecs/codecs-prelude.h>
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#include <gst/codecparsers/gsth264parser.h>
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G_BEGIN_DECLS
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#define GST_TYPE_H264_PICTURE (gst_h264_picture_get_type())
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#define GST_IS_H264_PICTURE(obj) (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_H264_PICTURE))
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#define GST_H264_PICTURE(obj) ((GstH264Picture *)obj)
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#define GST_H264_PICTURE_CAST(obj) (GST_H264_PICTURE(obj))
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typedef struct _GstH264Slice GstH264Slice;
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typedef struct _GstH264Picture GstH264Picture;
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#define GST_H264_DPB_MAX_SIZE 32
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struct _GstH264Slice
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{
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GstH264SliceHdr header;
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/* parsed nal unit (doesn't take ownership of raw data) */
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GstH264NalUnit nalu;
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};
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typedef enum
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{
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GST_H264_PICTURE_FIELD_FRAME,
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GST_H264_PICTURE_FILED_TOP_FIELD,
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GST_H264_PICTURE_FIELD_BOTTOM_FIELD,
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} GstH264PictureField;
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struct _GstH264Picture
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{
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GstMiniObject parent;
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GstH264SliceType type;
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GstClockTime pts;
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guint8 pic_order_cnt_type; /* SPS */
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gint32 top_field_order_cnt;
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gint32 bottom_field_order_cnt;
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gint pic_order_cnt;
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gint pic_order_cnt_msb;
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gint pic_order_cnt_lsb;
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gint delta_pic_order_cnt_bottom;
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gint delta_pic_order_cnt0;
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gint delta_pic_order_cnt1;
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gint pic_num;
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gint long_term_pic_num;
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gint frame_num;
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gint frame_num_offset;
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gint frame_num_wrap;
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gint long_term_frame_idx;
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gint nal_ref_idc;
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gboolean idr;
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gint idr_pic_id;
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gboolean ref;
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gboolean long_term;
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gboolean outputted;
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gboolean mem_mgmt_5;
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gboolean nonexisting;
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GstH264PictureField field;
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GstH264DecRefPicMarking dec_ref_pic_marking;
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gpointer user_data;
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GDestroyNotify notify;
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};
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GST_CODECS_API
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GType gst_h264_picture_get_type (void);
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GST_CODECS_API
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GstH264Picture * gst_h264_picture_new (void);
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static inline GstH264Picture *
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gst_h264_picture_ref (GstH264Picture * picture)
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{
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return (GstH264Picture *) gst_mini_object_ref (GST_MINI_OBJECT_CAST (picture));
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}
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static inline void
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gst_h264_picture_unref (GstH264Picture * picture)
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{
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gst_mini_object_unref (GST_MINI_OBJECT_CAST (picture));
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}
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static inline gboolean
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gst_h264_picture_replace (GstH264Picture ** old_picture,
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GstH264Picture * new_picture)
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{
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return gst_mini_object_replace ((GstMiniObject **) old_picture,
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(GstMiniObject *) new_picture);
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}
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static inline void
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gst_h264_picture_clear (GstH264Picture ** picture)
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{
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if (picture && *picture) {
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gst_h264_picture_unref (*picture);
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*picture = NULL;
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}
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}
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GST_CODECS_API
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void gst_h264_picture_set_user_data (GstH264Picture * picture,
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gpointer user_data,
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GDestroyNotify notify);
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GST_CODECS_API
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gpointer gst_h264_picture_get_user_data (GstH264Picture * picture);
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/*******************
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* GstH264Dpb *
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*******************/
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typedef struct _GstH264Dpb GstH264Dpb;
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GST_CODECS_API
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GstH264Dpb * gst_h264_dpb_new (void);
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GST_CODECS_API
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void gst_h264_dpb_set_max_num_pics (GstH264Dpb * dpb,
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gint max_num_pics);
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GST_CODECS_API
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gint gst_h264_dpb_get_max_num_pics (GstH264Dpb * dpb);
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GST_CODECS_API
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void gst_h264_dpb_free (GstH264Dpb * dpb);
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GST_CODECS_API
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void gst_h264_dpb_clear (GstH264Dpb * dpb);
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GST_CODECS_API
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void gst_h264_dpb_add (GstH264Dpb * dpb,
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GstH264Picture * picture);
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GST_CODECS_API
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void gst_h264_dpb_delete_unused (GstH264Dpb * dpb);
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GST_CODECS_API
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void gst_h264_dpb_delete_by_poc (GstH264Dpb * dpb,
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gint poc);
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GST_CODECS_API
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gint gst_h264_dpb_num_ref_pictures (GstH264Dpb * dpb);
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GST_CODECS_API
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void gst_h264_dpb_mark_all_non_ref (GstH264Dpb * dpb);
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GST_CODECS_API
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GstH264Picture * gst_h264_dpb_get_short_ref_by_pic_num (GstH264Dpb * dpb,
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gint pic_num);
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GST_CODECS_API
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GstH264Picture * gst_h264_dpb_get_long_ref_by_pic_num (GstH264Dpb * dpb,
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gint pic_num);
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GST_CODECS_API
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GstH264Picture * gst_h264_dpb_get_lowest_frame_num_short_ref (GstH264Dpb * dpb);
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GST_CODECS_API
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void gst_h264_dpb_get_pictures_not_outputted (GstH264Dpb * dpb,
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GList ** out);
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GST_CODECS_API
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void gst_h264_dpb_get_pictures_short_term_ref (GstH264Dpb * dpb,
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GList ** out);
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GST_CODECS_API
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void gst_h264_dpb_get_pictures_long_term_ref (GstH264Dpb * dpb,
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GList ** out);
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GST_CODECS_API
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GArray * gst_h264_dpb_get_pictures_all (GstH264Dpb * dpb);
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GST_CODECS_API
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gint gst_h264_dpb_get_size (GstH264Dpb * dpb);
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GST_CODECS_API
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gboolean gst_h264_dpb_is_full (GstH264Dpb * dpb);
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G_END_DECLS
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#endif /* __GST_H264_PICTURE_H__ */
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