AOMedia Codec SDK

Data Structures | Macros | Typedefs | Enumerations | Functions
aom_codec.h File Reference
Common Algorithm Interface

Describes the codec algorithm interface to applications. More...

`#include "aom/aom_image.h"`
`#include "aom/aom_integer.h"`
Include dependency graph for aom_codec.h:
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Go to the source code of this file.

## Data Structures
struct | aom_codec_ctx
| Codec context structure. More...
struct | cfg_options
| Config Options. More...

## Macros
#define | AOM_DEPRECATED
| Decorator indicating a function is deprecated.
#define | AOM_DECLSPEC_DEPRECATED
| Decorator indicating a function is deprecated. More...
#define | AOM_UNUSED
| Decorator indicating a function is potentially unused.
#define | ATTRIBUTE_PACKED
| Decorator indicating that given struct/union/enum is packed.
#define | AOM_CODEC_ABI_VERSION
| Current ABI version number.
#define | AOM_CODEC_CAP_DECODER 0x1
#define | AOM_CODEC_CAP_ENCODER 0x2
#define | AOM_VERSION_MAJOR(v) ((v >> 16) & 0xff)
#define | AOM_VERSION_MINOR(v) ((v >> 8) & 0xff)
#define | AOM_VERSION_PATCH(v) ((v >> 0) & 0xff)
#define | aom_codec_version_major() ((aom_codec_version() >> 16) & 0xff)
| Return the version major number.
#define | aom_codec_version_minor() ((aom_codec_version() >> 8) & 0xff)
| Return the version minor number.
#define | aom_codec_version_patch() ((aom_codec_version() >> 0) & 0xff)
| Return the version patch number.
#define | aom_codec_control(ctx, id, data)
| aom_codec_control wrapper macro More...
#define | AOM_CTRL_USE_TYPE(id, typ)
| aom_codec_control type definition macro More...
#define | AOM_CTRL_USE_TYPE_DEPRECATED(id, typ)
| aom_codec_control deprecated type definition macro More...
#define | AOM_CTRL_VOID(id)
| aom_codec_control void type definition macro More...

## Typedefs
typedef long | aom_codec_caps_t
| Codec capabilities bitfield. More...
typedef long | aom_codec_flags_t
| Initialization-time Feature Enabling. More...
typedef const struct aom_codec_iface | aom_codec_iface_t
| Codec interface structure. More...
typedef struct aom_codec_priv | aom_codec_priv_t
| Codec private data structure. More...
typedef const void * | aom_codec_iter_t
| Iterator. More...
typedef struct aom_codec_ctx | aom_codec_ctx_t
| Codec context structure. More...
typedef enum aom_bit_depth | aom_bit_depth_t
| Bit depth for codec This enumeration determines the bit depth of the codec.
typedef enum aom_superblock_size | aom_superblock_size_t
| Superblock size selection. More...
typedef struct cfg_options | cfg_options_t
| Config Options. More...

## Enumerations
enum | aom_codec_err_t { AOM_CODEC_OK, AOM_CODEC_ERROR, AOM_CODEC_MEM_ERROR, AOM_CODEC_ABI_MISMATCH, AOM_CODEC_INCAPABLE, AOM_CODEC_UNSUP_BITSTREAM, AOM_CODEC_UNSUP_FEATURE, AOM_CODEC_CORRUPT_FRAME, AOM_CODEC_INVALID_PARAM, AOM_CODEC_LIST_END }
| Algorithm return codes. More...
enum | aom_bit_depth { AOM_BITS_8 = 8, AOM_BITS_10 = 10, AOM_BITS_12 = 12 }
| Bit depth for codec This enumeration determines the bit depth of the codec. More...
enum | aom_superblock_size { AOM_SUPERBLOCK_SIZE_64X64, AOM_SUPERBLOCK_SIZE_128X128, AOM_SUPERBLOCK_SIZE_DYNAMIC }
| Superblock size selection. More...
enum | OBU_TYPE { OBU_SEQUENCE_HEADER = 1, OBU_TEMPORAL_DELIMITER = 2, OBU_FRAME_HEADER = 3, OBU_TILE_GROUP = 4, OBU_METADATA = 5, OBU_FRAME = 6, OBU_REDUNDANT_FRAME_HEADER = 7, OBU_TILE_LIST = 8, OBU_PADDING = 15 }
| OBU types.
enum | OBU_METADATA_TYPE { OBU_METADATA_TYPE_AOM_RESERVED_0 = 0, OBU_METADATA_TYPE_HDR_CLL = 1, OBU_METADATA_TYPE_HDR_MDCV = 2, OBU_METADATA_TYPE_SCALABILITY = 3, OBU_METADATA_TYPE_ITUT_T35 = 4, OBU_METADATA_TYPE_TIMECODE = 5 }
| OBU metadata types.

## Functions
int | aom_codec_version (void)
| Return the version information (as an integer) More...
const char * | aom_codec_version_str (void)
| Return the version information (as a string) More...
const char * | aom_codec_version_extra_str (void)
| Return the version information (as a string) More...
const char * | aom_codec_build_config (void)
| Return the build configuration. More...
const char * | aom_codec_iface_name (aom_codec_iface_t *iface)
| Return the name for a given interface. More...
const char * | aom_codec_err_to_string (aom_codec_err_t err)
| Convert error number to printable string. More...
const char * | aom_codec_error (aom_codec_ctx_t *ctx)
| Retrieve error synopsis for codec context. More...
const char * | aom_codec_error_detail (aom_codec_ctx_t *ctx)
| Retrieve detailed error information for codec context. More...
aom_codec_err_t | aom_codec_destroy (aom_codec_ctx_t *ctx)
| Destroy a codec instance. More...
aom_codec_caps_t | aom_codec_get_caps (aom_codec_iface_t *iface)
| Get the capabilities of an algorithm. More...
aom_codec_err_t | aom_codec_control_ (aom_codec_ctx_t *ctx, int ctrl_id,...)
| Control algorithm. More...
const char * | aom_obu_type_to_string (OBU_TYPE type)
| Returns string representation of OBU_TYPE. More...

## Detailed Description

Describes the codec algorithm interface to applications.

This file describes the interface between an application and a video codec algorithm.

An application instantiates a specific codec instance by using aom_codec_init() and a pointer to the algorithm's interface structure:

        my_app.c:
          extern aom_codec_iface_t my_codec;
          {
              aom_codec_ctx_t algo;
              res = aom_codec_init(&algo, &my_codec);
          }

Once initialized, the instance is manged using other functions from the aom_codec_* family.