Public Attributes
const char *	name

const char *	long_name
	Descriptive name for the format, meant to be more human-readable than name. More...

const char *	mime_type

const char *	extensions
	comma-separated filename extensions

enum AVCodecID	audio_codec
	default audio codec

enum AVCodecID	video_codec
	default video codec

enum AVCodecID	subtitle_codec
	default subtitle codec

int	flags
	can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH, AVFMT_TS_NONSTRICT, AVFMT_TS_NEGATIVE

const struct AVCodecTag const	codec_tag
	List of supported codec_id-codec_tag pairs, ordered by "better choice first". More...

const AVClass *	priv_class
	AVClass for the private context.

struct AVOutputFormat *	next

int	priv_data_size
	size of private data so that it can be allocated in the wrapper

int(*	write_header )(struct AVFormatContext *)

int(*	write_packet )(struct AVFormatContext , AVPacket pkt)
	Write a packet. More...

int(*	write_trailer )(struct AVFormatContext *)

int(*	interleave_packet )(struct AVFormatContext , AVPacket out, AVPacket *in, int flush)
	Currently only used to set pixel format if not YUV420P.

int(*	query_codec )(enum AVCodecID id, int std_compliance)
	Test if the given codec can be stored in this container. More...

void(*	get_output_timestamp )(struct AVFormatContext s, int stream, int64_t dts, int64_t *wall)

int(*	control_message )(struct AVFormatContext s, int type, void data, size_t data_size)
	Allows sending messages from application to device.

int(*	write_uncoded_frame )(struct AVFormatContext , int stream_index, AVFrame *frame, unsigned flags)
	Write an uncoded AVFrame. More...

int(*	get_device_list )(struct AVFormatContext s, struct AVDeviceInfoList device_list)
	Returns device list with it properties. More...

int(*	create_device_capabilities )(struct AVFormatContext s, struct AVDeviceCapabilitiesQuery caps)
	Initialize device capabilities submodule. More...

int(*	free_device_capabilities )(struct AVFormatContext s, struct AVDeviceCapabilitiesQuery caps)
	Free device capabilities submodule. More...

enum AVCodecID	data_codec
	default data codec

int(*	init )(struct AVFormatContext *)
	Initialize format. More...

void(*	deinit )(struct AVFormatContext *)
	Deinitialize format. More...

int(*	check_bitstream )(struct AVFormatContext , const AVPacket pkt)
	Set up any necessary bitstream filtering and extract any extra data needed for the global header. More...

Member Data Documentation

§ check_bitstream

int(* AVOutputFormat::check_bitstream) (struct AVFormatContext *, const AVPacket *pkt)

Set up any necessary bitstream filtering and extract any extra data needed for the global header.

Return 0 if more packets from this stream must be checked; 1 if not.

§ codec_tag

const struct AVCodecTag* const* AVOutputFormat::codec_tag

List of supported codec_id-codec_tag pairs, ordered by "better choice first".

The arrays are all terminated by AV_CODEC_ID_NONE.

§ create_device_capabilities

int(* AVOutputFormat::create_device_capabilities) (struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps)

Initialize device capabilities submodule.

See also: avdevice_capabilities_create() for more details.

§ deinit

void(* AVOutputFormat::deinit) (struct AVFormatContext *)

Deinitialize format.

If present, this is called whenever the muxer is being destroyed, regardless of whether or not the header has been written.

If a trailer is being written, this is called after write_trailer().

This is called if init() fails as well.

§ free_device_capabilities

int(* AVOutputFormat::free_device_capabilities) (struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps)

Free device capabilities submodule.

See also: avdevice_capabilities_free() for more details.

§ get_device_list

int(* AVOutputFormat::get_device_list) (struct AVFormatContext *s, struct AVDeviceInfoList *device_list)

Returns device list with it properties.

See also: avdevice_list_devices() for more details.

§ init

int(* AVOutputFormat::init) (struct AVFormatContext *)

Initialize format.

May allocate data here, and set any AVFormatContext or AVStream parameters that need to be set before packets are sent. This method must not write output.

Return 0 if streams were fully configured, 1 if not, negative AVERROR on failure

Any allocations made here must be freed in deinit().

§ long_name

const char* AVOutputFormat::long_name

Descriptive name for the format, meant to be more human-readable than name.

You should use the NULL_IF_CONFIG_SMALL() macro to define it.

§ query_codec

int(* AVOutputFormat::query_codec) (enum AVCodecID id, int std_compliance)

Test if the given codec can be stored in this container.

Returns: 1 if the codec is supported, 0 if it is not. A negative number if unknown. MKTAG('A', 'P', 'I', 'C') if the codec is only supported as AV_DISPOSITION_ATTACHED_PIC

§ write_packet

int(* AVOutputFormat::write_packet) (struct AVFormatContext *, AVPacket *pkt)

Write a packet.

If AVFMT_ALLOW_FLUSH is set in flags, pkt can be NULL in order to flush data buffered in the muxer. When flushing, return 0 if there still is more data to flush, or 1 if everything was flushed and there is no more buffered data.

§ write_uncoded_frame

int(* AVOutputFormat::write_uncoded_frame) (struct AVFormatContext *, int stream_index, AVFrame **frame, unsigned flags)

Write an uncoded AVFrame.

See av_write_uncoded_frame() for details.

The library will free *frame afterwards, but the muxer can prevent it by setting the pointer to NULL.

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

libavformat/avformat.h

Public Attributes