#include <avcodec.h>
Data Fields | |
const char * | name |
Name of the hardware accelerated codec. | |
enum AVMediaType | type |
Type of codec implemented by the hardware accelerator. | |
enum CodecID | id |
Codec implemented by the hardware accelerator. | |
enum PixelFormat | pix_fmt |
Supported pixel format. | |
int | capabilities |
Hardware accelerated codec capabilities. | |
struct AVHWAccel * | next |
int(* | start_frame )(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size) |
Called at the beginning of each frame or field picture. | |
int(* | decode_slice )(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size) |
Callback for each slice. | |
int(* | end_frame )(AVCodecContext *avctx) |
Called at the end of each frame or field picture. | |
int | priv_data_size |
Size of HW accelerator private data. |
Definition at line 3294 of file avcodec.h.
int(* AVHWAccel::decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size) |
Callback for each slice.
Meaningful slice information (codec specific) is guaranteed to be parsed at this point. This function is mandatory.
avctx | the codec context | |
buf | the slice data buffer base | |
buf_size | the size of the slice in bytes |
Referenced by decode_nal_units(), decode_slice(), mpeg_decode_slice(), and vc1_decode_frame().
int(* AVHWAccel::end_frame)(AVCodecContext *avctx) |
Called at the end of each frame or field picture.
The whole picture is parsed at this point and can now be sent to the hardware accelerator. This function is mandatory.
avctx | the codec context |
Referenced by ff_h263_decode_frame(), field_end(), slice_end(), and vc1_decode_frame().
enum CodecID AVHWAccel::id |
Codec implemented by the hardware accelerator.
See CODEC_ID_xxx
Definition at line 3314 of file avcodec.h.
Referenced by ff_find_hwaccel().
const char* AVHWAccel::name |
struct AVHWAccel* AVHWAccel::next [read] |
Definition at line 3329 of file avcodec.h.
Referenced by av_hwaccel_next(), and av_register_hwaccel().
Supported pixel format.
Only hardware accelerated formats are supported here.
Definition at line 3321 of file avcodec.h.
Referenced by ff_find_hwaccel().
Size of HW accelerator private data.
Private data is allocated with av_mallocz() before AVCodecContext.get_buffer() and deallocated after AVCodecContext.release_buffer().
Definition at line 3378 of file avcodec.h.
Referenced by alloc_frame_buffer().
int(* AVHWAccel::start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size) |
Called at the beginning of each frame or field picture.
Meaningful frame information (codec specific) is guaranteed to be parsed at this point. This function is mandatory.
Note that buf can be NULL along with buf_size set to 0. Otherwise, this means the whole frame is available at this point.
avctx | the codec context | |
buf | the frame data buffer base | |
buf_size | the size of the frame in bytes |
Referenced by decode_nal_units(), ff_h263_decode_frame(), mpeg_field_start(), and vc1_decode_frame().