FFmpeg: libavcodec/av1dec.h Source File

FFmpeg
av1dec.h
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1 /*
2  * AV1 video decoder
3  * *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVCODEC_AV1DEC_H
22 #define AVCODEC_AV1DEC_H
23 
24 #include <stdint.h>
25 
26 #include "libavutil/buffer.h"
27 #include "libavutil/fifo.h"
28 #include "libavutil/frame.h"
29 #include "libavutil/pixfmt.h"
30 #include "avcodec.h"
31 #include "packet.h"
32 #include "cbs.h"
33 #include "cbs_av1.h"
34 #include "dovi_rpu.h"
35 #include "progressframe.h"
36 
37  typedef struct AV1Frame {
38  union {
39  struct {
40   struct AVFrame *f;
41  };
42   ProgressFrame pf;
43  };
44 
45   void *hwaccel_picture_private; ///< RefStruct reference
46 
47   AV1RawOBU *header_ref; ///< RefStruct reference backing raw_frame_header.
48   AV1RawFrameHeader *raw_frame_header;
49 
50   int temporal_id;
51   int spatial_id;
52 
53   uint8_t gm_invalid[AV1_NUM_REF_FRAMES];
54   uint8_t gm_type[AV1_NUM_REF_FRAMES];
55   int32_t gm_params[AV1_NUM_REF_FRAMES][6];
56 
57   uint8_t skip_mode_frame_idx[2];
58 
59   AV1RawFilmGrainParams film_grain;
60 
61   uint8_t coded_lossless;
62 
63  // OrderHint for this frame.
64   uint8_t order_hint;
65  // RefFrameSignBias[] used when decoding this frame.
66   uint8_t ref_frame_sign_bias[AV1_TOTAL_REFS_PER_FRAME];
67  // OrderHints[] when this is the current frame, otherwise
68  // SavedOrderHints[s][] when is the reference frame in slot s.
69   uint8_t order_hints[AV1_TOTAL_REFS_PER_FRAME];
70 
71  // force_integer_mv value at the end of the frame header parsing.
72  // This is not the same as the syntax element value in
73  // raw_frame_header because the specification parsing tables
74  // override the value on intra frames.
75   uint8_t force_integer_mv;
76 } AV1Frame;
77 
78  typedef struct TileGroupInfo {
79   uint32_t tile_offset;
80   uint32_t tile_size;
81   uint16_t tile_row;
82   uint16_t tile_column;
83 } TileGroupInfo;
84 
85  typedef struct AV1DecContext {
86   const AVClass *class;
87   AVCodecContext *avctx;
88 
89   enum AVPixelFormat pix_fmt;
90   CodedBitstreamContext *cbc;
91   CodedBitstreamFragment current_obu;
92   AVPacket *pkt;
93 
94   AVBufferRef *seq_data_ref;
95   AV1RawOBU *seq_ref; ///< RefStruct reference backing raw_seq
96   AV1RawSequenceHeader *raw_seq;
97   AV1RawOBU *header_ref; ///< RefStruct reference backing raw_frame_header
98   AV1RawFrameHeader *raw_frame_header;
99   TileGroupInfo *tile_group_info;
100 
101   AV1RawOBU *cll_ref; ///< RefStruct reference backing cll
102   AV1RawMetadataHDRCLL *cll;
103   AV1RawOBU *mdcv_ref; ///< RefStruct reference backing mdcv
104   AV1RawMetadataHDRMDCV *mdcv;
105   DOVIContext dovi;
106   AVFifo *itut_t35_fifo;
107 
108   uint16_t tile_num;
109   uint16_t tg_start;
110   uint16_t tg_end;
111 
112   int operating_point_idc;
113 
114   AV1Frame ref[AV1_NUM_REF_FRAMES];
115   AV1Frame cur_frame;
116 
117   int nb_unit;
118 
119  // AVOptions
120   int operating_point;
121 } AV1DecContext;
122 
123 #endif /* AVCODEC_AV1DEC_H */
AV1DecContext::ref
AV1Frame ref[AV1_NUM_REF_FRAMES]
Definition: av1dec.h:114
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
AV1RawSequenceHeader
Definition: cbs_av1.h:73
TileGroupInfo::tile_column
uint16_t tile_column
Definition: av1dec.h:82
AV1DecContext::mdcv
AV1RawMetadataHDRMDCV * mdcv
Definition: av1dec.h:104
AV1DecContext::dovi
DOVIContext dovi
Definition: av1dec.h:105
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:389
AV1Frame::raw_frame_header
AV1RawFrameHeader * raw_frame_header
Definition: av1dec.h:48
CodedBitstreamContext
Context structure for coded bitstream operations.
Definition: cbs.h:219
AV1DecContext::tg_start
uint16_t tg_start
Definition: av1dec.h:109
cbs.h
TileGroupInfo::tile_row
uint16_t tile_row
Definition: av1dec.h:81
AV1DecContext::tg_end
uint16_t tg_end
Definition: av1dec.h:110
AV1DecContext::raw_frame_header
AV1RawFrameHeader * raw_frame_header
Definition: av1dec.h:98
AV1DecContext::seq_data_ref
AVBufferRef * seq_data_ref
Definition: av1dec.h:94
AV1DecContext::cll_ref
AV1RawOBU * cll_ref
RefStruct reference backing cll.
Definition: av1dec.h:101
fifo.h
DOVIContext
Definition: dovi_rpu.h:42
dovi_rpu.h
AV1RawMetadataHDRMDCV
Definition: cbs_av1.h:323
TileGroupInfo::tile_offset
uint32_t tile_offset
Definition: av1dec.h:79
progressframe.h
AV1DecContext::itut_t35_fifo
AVFifo * itut_t35_fifo
Definition: av1dec.h:106
AV1Frame
Definition: av1dec.h:37
cbs_av1.h
AV1DecContext::pkt
AVPacket * pkt
Definition: av1dec.h:92
AV1Frame::ref_frame_sign_bias
uint8_t ref_frame_sign_bias[AV1_TOTAL_REFS_PER_FRAME]
Definition: av1dec.h:66
AV1DecContext::current_obu
CodedBitstreamFragment current_obu
Definition: av1dec.h:91
AV1Frame::force_integer_mv
uint8_t force_integer_mv
Definition: av1dec.h:75
AV1Frame::spatial_id
int spatial_id
Definition: av1dec.h:51
CodedBitstreamFragment
Coded bitstream fragment structure, combining one or more units.
Definition: cbs.h:122
AV1DecContext::seq_ref
AV1RawOBU * seq_ref
RefStruct reference backing raw_seq.
Definition: av1dec.h:95
AV1Frame::film_grain
AV1RawFilmGrainParams film_grain
Definition: av1dec.h:59
AV1Frame::pf
ProgressFrame pf
Definition: av1dec.h:42
AV1DecContext::cbc
CodedBitstreamContext * cbc
Definition: av1dec.h:90
AV1Frame::f
struct AVFrame * f
Definition: av1dec.h:40
TileGroupInfo::tile_size
uint32_t tile_size
Definition: av1dec.h:80
AV1RawMetadataHDRCLL
Definition: cbs_av1.h:318
AV1DecContext::cur_frame
AV1Frame cur_frame
Definition: av1dec.h:115
AV1DecContext::tile_group_info
TileGroupInfo * tile_group_info
Definition: av1dec.h:99
AV1_NUM_REF_FRAMES
@ AV1_NUM_REF_FRAMES
Definition: av1.h:84
AV1RawOBU
Definition: cbs_av1.h:400
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
AV1Frame::gm_params
int32_t gm_params[AV1_NUM_REF_FRAMES][6]
Definition: av1dec.h:55
AV1RawFrameHeader
Definition: cbs_av1.h:165
AV1DecContext::nb_unit
int nb_unit
Definition: av1dec.h:117
AVFifo
Definition: fifo.c:35
AV1DecContext::mdcv_ref
AV1RawOBU * mdcv_ref
RefStruct reference backing mdcv.
Definition: av1dec.h:103
AV1DecContext
Definition: av1dec.h:85
AV1Frame::skip_mode_frame_idx
uint8_t skip_mode_frame_idx[2]
Definition: av1dec.h:57
frame.h
buffer.h
AV1Frame::order_hint
uint8_t order_hint
Definition: av1dec.h:64
AV1DecContext::tile_num
uint16_t tile_num
Definition: av1dec.h:108
AV1DecContext::cll
AV1RawMetadataHDRCLL * cll
Definition: av1dec.h:102
AV1DecContext::operating_point
int operating_point
Definition: av1dec.h:120
packet.h
AV1Frame::hwaccel_picture_private
void * hwaccel_picture_private
RefStruct reference.
Definition: av1dec.h:45
AV1Frame::header_ref
AV1RawOBU * header_ref
RefStruct reference backing raw_frame_header.
Definition: av1dec.h:47
AV1DecContext::operating_point_idc
int operating_point_idc
Definition: av1dec.h:112
AV1DecContext::avctx
AVCodecContext * avctx
Definition: av1dec.h:87
AV1DecContext::header_ref
AV1RawOBU * header_ref
RefStruct reference backing raw_frame_header.
Definition: av1dec.h:97
avcodec.h
AV1Frame::order_hints
uint8_t order_hints[AV1_TOTAL_REFS_PER_FRAME]
Definition: av1dec.h:69
pixfmt.h
AV1Frame::gm_invalid
uint8_t gm_invalid[AV1_NUM_REF_FRAMES]
Definition: av1dec.h:53
AV1_TOTAL_REFS_PER_FRAME
@ AV1_TOTAL_REFS_PER_FRAME
Definition: av1.h:86
AVCodecContext
main external API structure.
Definition: avcodec.h:451
AV1DecContext::pix_fmt
enum AVPixelFormat pix_fmt
Definition: av1dec.h:89
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
AV1Frame::temporal_id
int temporal_id
Definition: av1dec.h:50
ProgressFrame
The ProgressFrame structure.
Definition: progressframe.h:73
AVPacket
This structure stores compressed data.
Definition: packet.h:516
TileGroupInfo
Definition: av1dec.h:78
int32_t
int32_t
Definition: audioconvert.c:56
AV1RawFilmGrainParams
Definition: cbs_av1.h:133
AV1Frame::coded_lossless
uint8_t coded_lossless
Definition: av1dec.h:61
AV1Frame::gm_type
uint8_t gm_type[AV1_NUM_REF_FRAMES]
Definition: av1dec.h:54
AV1DecContext::raw_seq
AV1RawSequenceHeader * raw_seq
Definition: av1dec.h:96

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