Libav
h2645_parse.h
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1 /*
2  * H.264/HEVC common parsing code
3  *
4  * This file is part of Libav.
5  *
6  * Libav 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  * Libav 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 Libav; 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_H2645_PARSE_H
22 #define AVCODEC_H2645_PARSE_H
23 
24 #include <stdint.h>
25 
26 #include "avcodec.h"
27 #include "get_bits.h"
28 
29 typedef struct H2645NAL {
32 
33  int size;
34  const uint8_t *data;
35 
40  int size_bits;
41 
42  int raw_size;
43  const uint8_t *raw_data;
44 
46 
50  int type;
51 
56 
60  int ref_idc;
61 } H2645NAL;
62 
63 /* an input packet split into unescaped NAL units */
64 typedef struct H2645Packet {
66  int nb_nals;
68 } H2645Packet;
69 
73 int ff_h2645_extract_rbsp(const uint8_t *src, int length,
74  H2645NAL *nal);
75 
79 int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length,
80  void *logctx, int is_nalff, int nal_length_size,
81  enum AVCodecID codec_id);
82 
87 
88 #endif /* AVCODEC_H2645_PARSE_H */
int size
Definition: h2645_parse.h:33
int ff_h2645_extract_rbsp(const uint8_t *src, int length, H2645NAL *nal)
Extract the raw (unescaped) bitstream.
Definition: h2645_parse.c:32
int size_bits
Size, in bits, of just the data, excluding the stop bit and any trailing padding. ...
Definition: h2645_parse.h:40
uint8_t
bitstream reader API header.
#define src
Definition: vp8dsp.c:254
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:193
void ff_h2645_packet_uninit(H2645Packet *pkt)
Free all the allocated memory in the packet.
Definition: h2645_parse.c:323
int raw_size
Definition: h2645_parse.h:42
enum AVCodecID codec_id
Definition: avconv_vaapi.c:149
int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length, void *logctx, int is_nalff, int nal_length_size, enum AVCodecID codec_id)
Split an input packet into NAL units.
Definition: h2645_parse.c:214
int ref_idc
H.264 only, nal_ref_idc.
Definition: h2645_parse.h:60
int type
NAL unit type.
Definition: h2645_parse.h:50
Libavcodec external API header.
int nals_allocated
Definition: h2645_parse.h:67
const uint8_t * data
Definition: h2645_parse.h:34
GetBitContext gb
Definition: h2645_parse.h:45
const uint8_t * raw_data
Definition: h2645_parse.h:43
H2645NAL * nals
Definition: h2645_parse.h:65
int rbsp_buffer_size
Definition: h2645_parse.h:31
int temporal_id
HEVC only, nuh_temporal_id_plus_1 - 1.
Definition: h2645_parse.h:55
uint8_t * rbsp_buffer
Definition: h2645_parse.h:30