#include <codec_internal.h>

Data Fields
AVCodec	p
	The public AVCodec. More...

unsigned	caps_internal:29
	Internal codec capabilities FF_CODEC_CAP_*. More...

unsigned	cb_type:3
	This field determines the type of the codec (decoder/encoder) and also the exact callback cb implemented by the codec. More...

int	priv_data_size

const FFCodecDefault *	defaults
	Private codec-specific defaults. More...

void(*	init_static_data )(struct FFCodec *codec)
	Initialize codec static data, called from av_codec_iterate(). More...

int(*	init )(struct AVCodecContext *)

union {
int(* decode )(struct AVCodecContext avctx, struct AVFrame frame, int got_frame_ptr, struct AVPacket avpkt)
	Decode to an AVFrame. More...

int(* decode_sub )(struct AVCodecContext avctx, struct AVSubtitle sub, int got_frame_ptr, const struct AVPacket avpkt)
	Decode subtitle data to an AVSubtitle. More...

int(* receive_frame )(struct AVCodecContext avctx, struct AVFrame frame)
	Decode API with decoupled packet/frame dataflow. More...

int(* encode )(struct AVCodecContext avctx, struct AVPacket avpkt, const struct AVFrame frame, int got_packet_ptr)
	Encode data to an AVPacket. More...

int(* encode_sub )(struct AVCodecContext avctx, uint8_t buf, int buf_size, const struct AVSubtitle *sub)
	Encode subtitles to a raw buffer. More...

int(* receive_packet )(struct AVCodecContext avctx, struct AVPacket avpkt)
	Encode API with decoupled frame/packet dataflow. More...

}	cb

int(*	close )(struct AVCodecContext *)

void(*	flush )(struct AVCodecContext *)
	Flush buffers. More...

const char *	bsfs
	Decoding only, a comma-separated list of bitstream filters to apply to packets before decoding. More...

const struct AVCodecHWConfigInternal const	hw_configs
	Array of pointers to hardware configurations supported by the codec, or NULL if no hardware supported. More...

const uint32_t *	codec_tags
	List of supported codec_tags, terminated by FF_CODEC_TAGS_END. More...

Frame-level threading support functions
int(*	update_thread_context )(struct AVCodecContext dst, const struct AVCodecContext src)
	Copy necessary context variables from a previous thread context to the current one. More...

int(*	update_thread_context_for_user )(struct AVCodecContext dst, const struct AVCodecContext src)
	Copy variables back to the user-facing context. More...

Detailed Description

Definition at line 112 of file codec_internal.h.

Field Documentation

◆ p

AVCodec FFCodec::p

The public AVCodec.

See codec.h for it.

Definition at line 116 of file codec_internal.h.

Referenced by av1_init_static(), ff_frame_thread_free(), ff_frame_thread_init(), ff_vp9_init_static(), init_thread(), libx265_encode_init_csp(), LLVMFuzzerTestOneInput(), priv_data_size_wrong(), and X264_init_static().

◆ caps_internal

unsigned FFCodec::caps_internal

Internal codec capabilities FF_CODEC_CAP_*.

Definition at line 121 of file codec_internal.h.

Referenced by avcodec_open2(), avpriv_codec_get_cap_skip_frame_fill_param(), decode_receive_frame_internal(), decode_simple_internal(), ff_decode_frame_props(), ff_decode_get_packet(), ff_get_buffer(), ff_slice_thread_init(), ff_thread_get_ext_buffer(), init_thread(), lock_avcodec(), main(), unlock_avcodec(), and validate_thread_parameters().

◆ cb_type

unsigned FFCodec::cb_type

This field determines the type of the codec (decoder/encoder) and also the exact callback cb implemented by the codec.

cb_type uses enum FFCodecType values.

Definition at line 128 of file codec_internal.h.

Referenced by av_codec_is_decoder(), av_codec_is_encoder(), decode_receive_frame_internal(), encode_receive_packet_internal(), encode_simple_internal(), ff_encode_preinit(), and main().

◆ priv_data_size

int FFCodec::priv_data_size

Definition at line 130 of file codec_internal.h.

Referenced by avcodec_open2(), init_context_defaults(), init_thread(), main(), and priv_data_size_wrong().

◆ update_thread_context

int(* FFCodec::update_thread_context) (struct AVCodecContext *dst, const struct AVCodecContext *src)

Copy necessary context variables from a previous thread context to the current one.

If not defined, the next thread will start automatically; otherwise, the codec must call ff_thread_finish_setup().

dst and src will (rarely) point to the same context, in which case memcpy should be skipped.

Definition at line 142 of file codec_internal.h.

Referenced by ff_thread_can_start_frame(), frame_worker_thread(), main(), thread_get_buffer_internal(), update_context_from_thread(), and vp78_decode_frame().

◆ update_thread_context_for_user

int(* FFCodec::update_thread_context_for_user) (struct AVCodecContext *dst, const struct AVCodecContext *src)

Copy variables back to the user-facing context.

Definition at line 147 of file codec_internal.h.

Referenced by main(), and update_context_from_thread().

◆ defaults

const FFCodecDefault* FFCodec::defaults

Private codec-specific defaults.

Definition at line 153 of file codec_internal.h.

Referenced by init_context_defaults().

◆ init_static_data

void(* FFCodec::init_static_data) (struct FFCodec *codec)

Initialize codec static data, called from av_codec_iterate().

This is not intended for time consuming operations as it is run for every codec regardless of that codec being used.

Definition at line 161 of file codec_internal.h.

Referenced by av_codec_init_static().

◆ init

int(* FFCodec::init) (struct AVCodecContext *)

Definition at line 163 of file codec_internal.h.

Referenced by avcodec_open2(), init_thread(), lock_avcodec(), and unlock_avcodec().

◆ decode

int(* FFCodec::decode) (struct AVCodecContext *avctx, struct AVFrame *frame, int *got_frame_ptr, struct AVPacket *avpkt)

Decode to an AVFrame.

cb is in this state if cb_type is FF_CODEC_CB_TYPE_DECODE.

Parameters

	avctx	codec context
[out]	frame	AVFrame for output
[out]	got_frame_ptr	decoder sets to 0 or 1 to indicate that a non-empty frame was returned in frame.
[in]	avpkt	AVPacket containing the data to be decoded

Returns: amount of bytes read from the packet on success, negative error code on failure

Definition at line 178 of file codec_internal.h.

Referenced by decode_simple_internal(), and frame_worker_thread().

◆ decode_sub

int(* FFCodec::decode_sub) (struct AVCodecContext *avctx, struct AVSubtitle *sub, int *got_frame_ptr, const struct AVPacket *avpkt)

Decode subtitle data to an AVSubtitle.

cb is in this state if cb_type is FF_CODEC_CB_TYPE_DECODE_SUB.

Apart from that this is like the decode callback.

Definition at line 186 of file codec_internal.h.

Referenced by avcodec_decode_subtitle2().

◆ receive_frame

int(* FFCodec::receive_frame) (struct AVCodecContext *avctx, struct AVFrame *frame)

Decode API with decoupled packet/frame dataflow.

cb is in this state if cb_type is FF_CODEC_CB_TYPE_RECEIVE_FRAME.

This function is called to get one output frame. It should call ff_decode_get_packet() to obtain input data.

Definition at line 195 of file codec_internal.h.

Referenced by decode_receive_frame_internal().

◆ encode

int(* FFCodec::encode) (struct AVCodecContext *avctx, struct AVPacket *avpkt, const struct AVFrame *frame, int *got_packet_ptr)

Encode data to an AVPacket.

cb is in this state if cb_type is FF_CODEC_CB_TYPE_ENCODE

Parameters

	avctx	codec context
[out]	avpkt	output AVPacket
[in]	frame	AVFrame containing the input to be encoded
[out]	got_packet_ptr	encoder sets to 0 or 1 to indicate that a non-empty packet was returned in avpkt.