#include <avcodec.h>

Public Attributes
const char *	name

const char *	long_name

enum AVMediaType	type

enum AVCodecID	id

int	capabilities

const AVRational *	supported_framerates
	array of supported framerates, or NULL if any, array is terminated by {0,0} More...

enum AVPixelFormat *	pix_fmts
	array of supported pixel formats, or NULL if unknown, array is terminated by -1 More...

const int *	supported_samplerates
	array of supported audio samplerates, or NULL if unknown, array is terminated by 0 More...

enum AVSampleFormat *	sample_fmts
	array of supported sample formats, or NULL if unknown, array is terminated by -1 More...

const uint64_t *	channel_layouts
	array of support channel layouts, or NULL if unknown. array is terminated by 0 More...

uint8_t	max_lowres
	maximum value for lowres supported by the decoder, no direct access, use av_codec_get_max_lowres() More...

const AVClass *	priv_class
	AVClass for the private context. More...

const AVProfile *	profiles
	array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} More...

int	priv_data_size

struct AVCodec *	next

const AVCodecDefault *	defaults

void(*	init_static_data )(struct AVCodec *codec)

int(*	init )(AVCodecContext *)

int(*	encode_sub )(AVCodecContext , uint8_t buf, int buf_size, const struct AVSubtitle *sub)

int(*	encode2 )(AVCodecContext avctx, AVPacket avpkt, const AVFrame frame, int got_packet_ptr)

int(*	decode )(AVCodecContext , void outdata, int outdata_size, AVPacket avpkt)

int(*	close )(AVCodecContext *)

int(*	send_frame )(AVCodecContext avctx, const AVFrame frame)

int(*	send_packet )(AVCodecContext avctx, const AVPacket avpkt)

int(*	receive_frame )(AVCodecContext avctx, AVFrame frame)

int(*	receive_packet )(AVCodecContext avctx, AVPacket avpkt)

void(*	flush )(AVCodecContext *)

int	caps_internal

Frame-level threading support functions
int(*	init_thread_copy )(AVCodecContext *)

int(*	update_thread_context )(AVCodecContext dst, const AVCodecContext src)

Detailed Description

AVCodec.

Member Data Documentation

int AVCodec::capabilities

Codec capabilities. see AV_CODEC_CAP_*

int AVCodec::caps_internal

Internal codec capabilities. See FF_CODEC_CAP_* in internal.h

const uint64_t* AVCodec::channel_layouts

array of support channel layouts, or NULL if unknown. array is terminated by 0

int(* AVCodec::close) (AVCodecContext *)

int(* AVCodec::decode) (AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt)

const AVCodecDefault* AVCodec::defaults

Private codec-specific defaults.

int(* AVCodec::encode2) (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)

Encode data to an AVPacket.

Parameters

	avctx	codec context
	avpkt	output AVPacket (may contain a user-provided buffer)
[in]	frame	AVFrame containing the raw data to be encoded
[out]	got_packet_ptr	encoder sets to 0 or 1 to indicate that a non-empty packet was returned in avpkt.

Returns: 0 on success, negative error code on failure

int(* AVCodec::encode_sub) (AVCodecContext *, uint8_t *buf, int buf_size, const struct AVSubtitle *sub)

void(* AVCodec::flush) (AVCodecContext *)

Flush buffers. Will be called when seeking

enum AVCodecID AVCodec::id

int(* AVCodec::init) (AVCodecContext *)

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

Initialize codec static data, called from avcodec_register().

int(* AVCodec::init_thread_copy) (AVCodecContext *)

If defined, called on thread contexts when they are created. If the codec allocates writable tables in init(), re-allocate them here. priv_data will be set to a copy of the original.

const char* AVCodec::long_name

Descriptive name for the codec, meant to be more human readable than name. You should use the NULL_IF_CONFIG_SMALL() macro to define it.

uint8_t AVCodec::max_lowres

maximum value for lowres supported by the decoder, no direct access, use av_codec_get_max_lowres()

const char* AVCodec::name

Name of the codec implementation. The name is globally unique among encoders and among decoders (but an encoder and a decoder can share the same name). This is the primary way to find a codec from the user perspective.

struct AVCodec* AVCodec::next

enum AVPixelFormat* AVCodec::pix_fmts

array of supported pixel formats, or NULL if unknown, array is terminated by -1

const AVClass* AVCodec::priv_class

AVClass for the private context.

int AVCodec::priv_data_size

const AVProfile* AVCodec::profiles

array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}

int(* AVCodec::receive_frame) (AVCodecContext *avctx, AVFrame *frame)

int(* AVCodec::receive_packet) (AVCodecContext *avctx, AVPacket *avpkt)

enum AVSampleFormat* AVCodec::sample_fmts

array of supported sample formats, or NULL if unknown, array is terminated by -1

int(* AVCodec::send_frame) (AVCodecContext *avctx, const AVFrame *frame)

Decode/encode API with decoupled packet/frame dataflow. The API is the same as the avcodec_ prefixed APIs (avcodec_send_frame() etc.), except that:

never called if the codec is closed or the wrong type,
AVPacket parameter change side data is applied right before calling AVCodec->send_packet,
if AV_CODEC_CAP_DELAY is not set, drain packets or frames are never sent,
only one drain packet is ever passed down (until the next flush()),
a drain AVPacket is always NULL (no need to check for avpkt->size).

int(* AVCodec::send_packet) (AVCodecContext *avctx, const AVPacket *avpkt)

const AVRational* AVCodec::supported_framerates

array of supported framerates, or NULL if any, array is terminated by {0,0}

const int* AVCodec::supported_samplerates

array of supported audio samplerates, or NULL if unknown, array is terminated by 0

enum AVMediaType AVCodec::type

int(* AVCodec::update_thread_context) (AVCodecContext *dst, const 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.

The documentation for this struct was generated from the following file:

src/acoustid/chromaprint/libavcodec/avcodec.h

Public Attributes

Detailed Description

Member Data Documentation