daala
0.0-1185-g52bbd43-dirty
Experimental Daala video codec API reference.
|
The shared libdaala
C API.
More...
#include "daala_integer.h"
Go to the source code of this file.
Data Structures | |
struct | od_img_plane |
Representation of a single component within an image or frame. More... | |
struct | od_img |
Representation of an image or video frame. More... | |
struct | daala_plane_info |
Subsampling factors for a plane as a power of 2. More... | |
struct | daala_info |
Configuration parameters for a codec instance. More... | |
struct | daala_comment |
The comment information. More... | |
Macros | |
#define | _daala_codec_H (1) |
#define | OD_GNUC_PREREQ(maj, min, pat) (0) |
#define | OD_WARN_UNUSED_RESULT |
#define | OD_ARG_NONNULL(x) |
Error codes | |
#define | OD_SUCCESS (0) |
No error occurred. | |
#define | OD_EFAULT (-1) |
An invalid pointer was provided. | |
#define | OD_EINVAL (-10) |
An invalid argument was provided. | |
#define | OD_EBADHEADER (-20) |
The contents of the header were incomplete, invalid, or unexpected. | |
#define | OD_ENOTFORMAT (-21) |
The header does not belong to a Daala stream. | |
#define | OD_EVERSION (-22) |
The bitstream version is too high. | |
#define | OD_EIMPL (-23) |
The specified function is not implemented. | |
#define | OD_EBADPACKET (-24) |
There were errors in the video data packet. | |
Colorspaces | |
#define | OD_CS_UNSPECIFIED (0) |
The color space was not specified at the encoder. More... | |
#define | OD_CS_ITU_REC_470M (1) |
A Y'CbCr color space designed for NTSC content. | |
#define | OD_CS_ITU_REC_470BG (2) |
A Y'CbCr color space designed for PAL/SECAM content. | |
#define | OD_CS_ITU_REC_790 (3) |
A Y'CbCr color space designed for HD content. | |
#define | OD_CS_YCgCo (4) |
A Y'CgCo color space designed for sRGB content. | |
#define | OD_CS_NSPACES (5) |
The total number of currently defined color spaces. | |
#define | OD_NPLANES_MAX (4) |
The maximum number of color planes allowed in a single frame. | |
typedef struct od_img_plane | od_img_plane |
typedef struct od_img | od_img |
typedef struct daala_plane_info | daala_plane_info |
typedef struct daala_info | daala_info |
typedef struct daala_comment | daala_comment |
const char * | daala_version_string (void) |
int | daala_log_init (void) |
Initialize the logging module. More... | |
void | daala_info_init (daala_info *info) |
void | daala_info_clear (daala_info *info) |
void | daala_comment_init (daala_comment *dc) |
void | daala_comment_clear (daala_comment *dc) |
int64_t | daala_granule_basetime (void *encdec, int64_t granpos) |
double | daala_granule_time (void *encdec, int64_t granpos) |
int | daala_packet_isheader (const unsigned char *packet, int len) |
Determines whether a Daala packet is a header or not. More... | |
int | daala_packet_iskeyframe (const unsigned char *packet, int len) |
Determines whether a Daala packet is a key frame or not. More... | |
The shared libdaala
C API.
#define OD_CS_UNSPECIFIED (0) |
The color space was not specified at the encoder.
It may be conveyed by an external means.
int daala_log_init | ( | void | ) |
Initialize the logging module.
This should be called once before invoking any other Daala functions if logging support is enabled and you want to use it. Otherwise no logging messages will be printed.
0 | Success. This function always succeeds. It only returns a value for convenience (e.g., for use in a static initializer). |
int daala_packet_isheader | ( | const unsigned char * | packet, |
int | len | ||
) |
Determines whether a Daala packet is a header or not.
This function does no verification beyond checking the packet type bit, so it should not be used for bitstream identification. Use daala_decode_headerin() for that.
packet | A buffer containing an encoded Daala packet. |
len | The length of the buffer in bytes. |
1 | The packet is a header packet. |
0 | The packet is a video data packet. |
int daala_packet_iskeyframe | ( | const unsigned char * | packet, |
int | len | ||
) |
Determines whether a Daala packet is a key frame or not.
This function does no verfication beyond checking the packet type and key frame bits, so it should not be used for bitstream identification. Feed the packet to an actual decoder for that.
packet | A buffer containing an encoded Daala packet. |
len | The length of the buffer in bytes. |
1 | The packet contains a key frame. |
0 | The packet contains a delta frame. |
-1 | The packet is not a video data packet. |