dav1d 1.5.1 dav1d is an AV1 decoder |

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dav1d.h
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1/*
2 * Copyright © 2018-2021, VideoLAN and dav1d authors
3 * Copyright © 2018, Two Orioles, LLC
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this
10 * list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef DAV1D_H
29#define DAV1D_H
30
31#include <errno.h>
32#include <stdarg.h>
33
34#include "common.h"
35#include "picture.h"
36#include "data.h"
37#include "version.h"
38
39#ifdef __cplusplus
40 extern "C" {
41#endif
42
43 typedef struct Dav1dContext Dav1dContext;
44 typedef struct Dav1dRef Dav1dRef;
45
46#define DAV1D_MAX_THREADS 256
47#define DAV1D_MAX_FRAME_DELAY 256
48
49 typedef struct Dav1dLogger {
50 void *cookie;
58 void (*callback)(void *cookie, const char *format, va_list ap);
59} Dav1dLogger;
60
61 enum Dav1dInloopFilterType {
62 DAV1D_INLOOPFILTER_NONE = 0,
63 DAV1D_INLOOPFILTER_DEBLOCK = 1 << 0,
64 DAV1D_INLOOPFILTER_CDEF = 1 << 1,
65 DAV1D_INLOOPFILTER_RESTORATION = 1 << 2,
66 DAV1D_INLOOPFILTER_ALL = DAV1D_INLOOPFILTER_DEBLOCK |
67 DAV1D_INLOOPFILTER_CDEF |
68 DAV1D_INLOOPFILTER_RESTORATION,
69};
70
71 enum Dav1dDecodeFrameType {
72 DAV1D_DECODEFRAMETYPE_ALL = 0,
73 DAV1D_DECODEFRAMETYPE_REFERENCE = 1,
74 DAV1D_DECODEFRAMETYPE_INTRA = 2,
75 DAV1D_DECODEFRAMETYPE_KEY = 3,
76};
77
78 typedef struct Dav1dSettings {
79 int n_threads;
80 int max_frame_delay;
81 int apply_grain;
82 int operating_point;
83 int all_layers;
84 unsigned frame_size_limit;
85 Dav1dPicAllocator allocator;
86 Dav1dLogger logger;
87 int strict_std_compliance;
90 int output_invisible_frames;
94 enum Dav1dInloopFilterType inloop_filters;
96 enum Dav1dDecodeFrameType decode_frame_type;
98 uint8_t reserved[16];
99} Dav1dSettings;
100
104 DAV1D_API const char *dav1d_version(void);
105
113 DAV1D_API unsigned dav1d_version_api(void);
114
120 DAV1D_API void dav1d_default_settings(Dav1dSettings *s);
121
134 DAV1D_API int dav1d_open(Dav1dContext **c_out, const Dav1dSettings *s);
135
154 DAV1D_API int dav1d_parse_sequence_header(Dav1dSequenceHeader *out,
155 const uint8_t *buf, const size_t sz);
156
174 DAV1D_API int dav1d_send_data(Dav1dContext *c, Dav1dData *in);
175
226 DAV1D_API int dav1d_get_picture(Dav1dContext *c, Dav1dPicture *out);
227
246 DAV1D_API int dav1d_apply_grain(Dav1dContext *c, Dav1dPicture *out,
247 const Dav1dPicture *in);
248
254 DAV1D_API void dav1d_close(Dav1dContext **c_out);
255
266 DAV1D_API void dav1d_flush(Dav1dContext *c);
267
268 enum Dav1dEventFlags {
274 DAV1D_EVENT_FLAG_NEW_SEQUENCE = 1 << 0,
279 DAV1D_EVENT_FLAG_NEW_OP_PARAMS_INFO = 1 << 1,
280};
281
295 DAV1D_API int dav1d_get_event_flags(Dav1dContext *c, enum Dav1dEventFlags *flags);
296
308 DAV1D_API int dav1d_get_decode_error_data_props(Dav1dContext *c, Dav1dDataProps *out);
309
323 DAV1D_API int dav1d_get_frame_delay(const Dav1dSettings *s);
324
325#ifdef __cplusplus
326} /* extern "C" */
327#endif
328
329#endif /* DAV1D_H */
common.h
DAV1D_API
#define DAV1D_API
Definition common.h:50
data.h
dav1d_get_picture
DAV1D_API int dav1d_get_picture(Dav1dContext *c, Dav1dPicture *out)
Dav1dInloopFilterType
Dav1dInloopFilterType
Definition dav1d.h:61
DAV1D_INLOOPFILTER_CDEF
@ DAV1D_INLOOPFILTER_CDEF
Definition dav1d.h:64
DAV1D_INLOOPFILTER_NONE
@ DAV1D_INLOOPFILTER_NONE
Definition dav1d.h:62
DAV1D_INLOOPFILTER_ALL
@ DAV1D_INLOOPFILTER_ALL
Definition dav1d.h:66
DAV1D_INLOOPFILTER_DEBLOCK
@ DAV1D_INLOOPFILTER_DEBLOCK
Definition dav1d.h:63
DAV1D_INLOOPFILTER_RESTORATION
@ DAV1D_INLOOPFILTER_RESTORATION
Definition dav1d.h:65
dav1d_close
DAV1D_API void dav1d_close(Dav1dContext **c_out)
Dav1dRef
struct Dav1dRef Dav1dRef
Definition dav1d.h:44
dav1d_open
DAV1D_API int dav1d_open(Dav1dContext **c_out, const Dav1dSettings *s)
Dav1dEventFlags
Dav1dEventFlags
Definition dav1d.h:268
DAV1D_EVENT_FLAG_NEW_SEQUENCE
@ DAV1D_EVENT_FLAG_NEW_SEQUENCE
Definition dav1d.h:274
DAV1D_EVENT_FLAG_NEW_OP_PARAMS_INFO
@ DAV1D_EVENT_FLAG_NEW_OP_PARAMS_INFO
Definition dav1d.h:279
Dav1dContext
struct Dav1dContext Dav1dContext
Definition dav1d.h:43
dav1d_parse_sequence_header
DAV1D_API int dav1d_parse_sequence_header(Dav1dSequenceHeader *out, const uint8_t *buf, const size_t sz)
dav1d_get_event_flags
DAV1D_API int dav1d_get_event_flags(Dav1dContext *c, enum Dav1dEventFlags *flags)
dav1d_version
DAV1D_API const char * dav1d_version(void)
dav1d_default_settings
DAV1D_API void dav1d_default_settings(Dav1dSettings *s)
dav1d_send_data
DAV1D_API int dav1d_send_data(Dav1dContext *c, Dav1dData *in)
dav1d_flush
DAV1D_API void dav1d_flush(Dav1dContext *c)
dav1d_apply_grain
DAV1D_API int dav1d_apply_grain(Dav1dContext *c, Dav1dPicture *out, const Dav1dPicture *in)
dav1d_version_api
DAV1D_API unsigned dav1d_version_api(void)
Dav1dDecodeFrameType
Dav1dDecodeFrameType
Definition dav1d.h:71
DAV1D_DECODEFRAMETYPE_KEY
@ DAV1D_DECODEFRAMETYPE_KEY
decode and return keyframes only
Definition dav1d.h:75
DAV1D_DECODEFRAMETYPE_REFERENCE
@ DAV1D_DECODEFRAMETYPE_REFERENCE
decode and return frames referenced by other frames only
Definition dav1d.h:73
DAV1D_DECODEFRAMETYPE_ALL
@ DAV1D_DECODEFRAMETYPE_ALL
decode and return all frames
Definition dav1d.h:72
DAV1D_DECODEFRAMETYPE_INTRA
@ DAV1D_DECODEFRAMETYPE_INTRA
decode and return intra frames only (includes keyframes)
Definition dav1d.h:74
dav1d_get_frame_delay
DAV1D_API int dav1d_get_frame_delay(const Dav1dSettings *s)
dav1d_get_decode_error_data_props
DAV1D_API int dav1d_get_decode_error_data_props(Dav1dContext *c, Dav1dDataProps *out)
picture.h
Dav1dDataProps
Definition common.h:77
Dav1dData
Definition data.h:40
Dav1dLogger
Definition dav1d.h:49
Dav1dLogger::cookie
void * cookie
Custom data to pass to the callback.
Definition dav1d.h:50
Dav1dLogger::callback
void(* callback)(void *cookie, const char *format, va_list ap)
Definition dav1d.h:58
Dav1dPicAllocator
Definition picture.h:107
Dav1dPicture
Definition picture.h:53
Dav1dSequenceHeader
Definition headers.h:203
Dav1dSettings
Definition dav1d.h:78
Dav1dSettings::inloop_filters
enum Dav1dInloopFilterType inloop_filters
Definition dav1d.h:94
Dav1dSettings::all_layers
int all_layers
output all spatial layers of a scalable AV1 biststream (default 1)
Definition dav1d.h:83
Dav1dSettings::decode_frame_type
enum Dav1dDecodeFrameType decode_frame_type
Definition dav1d.h:96
Dav1dSettings::reserved
uint8_t reserved[16]
reserved for future use
Definition dav1d.h:98
Dav1dSettings::operating_point
int operating_point
select an operating point for scalable AV1 bitstreams (0 - 31, default 0)
Definition dav1d.h:82
Dav1dSettings::n_threads
int n_threads
number of threads (0 = number of logical cores in host system, default 0)
Definition dav1d.h:79
Dav1dSettings::allocator
Dav1dPicAllocator allocator
Picture allocator callback.
Definition dav1d.h:85
Dav1dSettings::apply_grain
int apply_grain
whether to apply film grain on output frames (default 1)
Definition dav1d.h:81
Dav1dSettings::strict_std_compliance
int strict_std_compliance
Definition dav1d.h:87
Dav1dSettings::logger
Dav1dLogger logger
Logger callback.
Definition dav1d.h:86
Dav1dSettings::output_invisible_frames
int output_invisible_frames
Definition dav1d.h:90
Dav1dSettings::max_frame_delay
int max_frame_delay
Set to 1 for low-latency decoding (0 = ceil(sqrt(n_threads)), default 0)
Definition dav1d.h:80
Dav1dSettings::frame_size_limit
unsigned frame_size_limit
maximum frame size, in pixels (0 = unlimited, default 0)
Definition dav1d.h:84
version.h