FFmpeg
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#include <avcodec.h>
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const char * | name |
Name of the hardware accelerated codec. More... | |
enum AVMediaType | type |
Type of codec implemented by the hardware accelerator. More... | |
enum AVCodecID | id |
Codec implemented by the hardware accelerator. More... | |
enum AVPixelFormat | pix_fmt |
Supported pixel format. More... | |
int | capabilities |
Hardware accelerated codec capabilities. More... | |
int(* | alloc_frame )(AVCodecContext *avctx, AVFrame *frame) |
Allocate a custom buffer. More... | |
int(* | start_frame )(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size) |
Called at the beginning of each frame or field picture. More... | |
int(* | decode_params )(AVCodecContext *avctx, int type, const uint8_t *buf, uint32_t buf_size) |
Callback for parameter data (SPS/PPS/VPS etc). More... | |
int(* | decode_slice )(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size) |
Callback for each slice. More... | |
int(* | end_frame )(AVCodecContext *avctx) |
Called at the end of each frame or field picture. More... | |
int | frame_priv_data_size |
Size of per-frame hardware accelerator private data. More... | |
void(* | decode_mb )(struct MpegEncContext *s) |
Called for every Macroblock in a slice. More... | |
int(* | init )(AVCodecContext *avctx) |
Initialize the hwaccel private data. More... | |
int(* | uninit )(AVCodecContext *avctx) |
Uninitialize the hwaccel private data. More... | |
int | priv_data_size |
Size of the private data to allocate in AVCodecInternal.hwaccel_priv_data. More... | |
int | caps_internal |
Internal hwaccel capabilities. More... | |
int(* | frame_params )(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx) |
Fill the given hw_frames context with current codec parameters. More... | |
const char* AVHWAccel::name |
Name of the hardware accelerated codec.
The name is globally unique among encoders and among decoders (but an encoder and a decoder can share the same name).
Definition at line 3582 of file avcodec.h.
Referenced by hwaccel_init().
enum AVMediaType AVHWAccel::type |
enum AVCodecID AVHWAccel::id |
enum AVPixelFormat AVHWAccel::pix_fmt |
Supported pixel format.
Only hardware accelerated formats are supported here.
Definition at line 3603 of file avcodec.h.
Referenced by ff_decode_get_hw_frames_ctx(), and ff_dxva2_decode_init().
int AVHWAccel::capabilities |
Hardware accelerated codec capabilities.
see AV_HWACCEL_CODEC_CAP_*
Definition at line 3609 of file avcodec.h.
Referenced by hwaccel_init().
int(* AVHWAccel::alloc_frame)(AVCodecContext *avctx, AVFrame *frame) |
Allocate a custom buffer.
Definition at line 3622 of file avcodec.h.
Referenced by get_buffer_internal().
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 |
Definition at line 3638 of file avcodec.h.
Referenced by decode_nal_unit(), decode_nal_units(), ff_h263_decode_frame(), ff_mjpeg_decode_sof(), mpeg_field_start(), vc1_decode_frame(), vp78_decode_frame(), and vp9_decode_frame().
int(* AVHWAccel::decode_params)(AVCodecContext *avctx, int type, const uint8_t *buf, uint32_t buf_size) |
Callback for parameter data (SPS/PPS/VPS etc).
Useful for hardware decoders which keep persistent state about the video parameters, and need to receive any changes to update that state.
avctx | the codec context |
type | the nal unit type |
buf | the nal unit data buffer |
buf_size | the size of the nal unit in bytes |
Definition at line 3652 of file avcodec.h.
Referenced by decode_nal_unit(), and decode_nal_units().
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. The only exception is XvMC, that works on MB level.
avctx | the codec context |
buf | the slice data buffer base |
buf_size | the size of the slice in bytes |
Definition at line 3666 of file avcodec.h.
Referenced by decode_nal_unit(), decode_nal_units(), decode_slice(), er_supported(), ff_er_add_slice(), ff_mjpeg_decode_sos(), mpeg_decode_slice(), vc1_decode_frame(), vp78_decode_frame(), and vp9_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 |
Definition at line 3677 of file avcodec.h.
Referenced by ff_h263_decode_frame(), ff_h264_field_end(), ff_mjpeg_decode_frame(), hevc_decode_frame(), mpeg_field_start(), slice_end(), vc1_decode_frame(), vp78_decode_frame(), and vp9_decode_frame().
int AVHWAccel::frame_priv_data_size |
Size of per-frame hardware accelerator private data.
Private data is allocated with av_mallocz() before AVCodecContext.get_buffer() and deallocated after AVCodecContext.release_buffer().
Definition at line 3686 of file avcodec.h.
Referenced by alloc_frame(), alloc_frame_buffer(), alloc_picture(), ff_mjpeg_decode_sof(), vp8_alloc_frame(), and vp9_frame_alloc().
void(* AVHWAccel::decode_mb)(struct MpegEncContext *s) |
Called for every Macroblock in a slice.
XvMC uses it to replace the ff_mpv_reconstruct_mb(). Instead of decoding to raw picture, MB parameters are stored in an array provided by the video driver.
s | the mpeg context |
Definition at line 3697 of file avcodec.h.
Referenced by ff_blockdsp_init_x86(), ff_er_frame_end(), is_intra_more_likely(), and mpv_reconstruct_mb_internal().
int(* AVHWAccel::init)(AVCodecContext *avctx) |
Initialize the hwaccel private data.
This will be called from ff_get_format(), after hwaccel and hwaccel_context are set and the hwaccel private data in AVCodecInternal is allocated.
Definition at line 3706 of file avcodec.h.
Referenced by ff_vdpau_common_reinit(), and hwaccel_init().
int(* AVHWAccel::uninit)(AVCodecContext *avctx) |
Uninitialize the hwaccel private data.
This will be called from get_format() or avcodec_close(), after hwaccel and hwaccel_context are already uninitialized.
Definition at line 3714 of file avcodec.h.
Referenced by avcodec_close(), ff_vdpau_common_reinit(), and hwaccel_uninit().
int AVHWAccel::priv_data_size |
Size of the private data to allocate in AVCodecInternal.hwaccel_priv_data.
Definition at line 3720 of file avcodec.h.
Referenced by hwaccel_init().
int AVHWAccel::caps_internal |
Internal hwaccel capabilities.
Definition at line 3725 of file avcodec.h.
Referenced by ff_thread_finish_setup().
int(* AVHWAccel::frame_params)(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx) |
Fill the given hw_frames context with current codec parameters.
Called from get_format. Refer to avcodec_get_hw_frames_parameters() for details.
This CAN be called before AVHWAccel.init is called, and you must assume that avctx->hwaccel_priv_data is invalid.
Definition at line 3735 of file avcodec.h.
Referenced by avcodec_get_hw_frames_parameters().