Other
[Common utility functions]

Modules
	Internal
	Not exported functions, for internal usage only.
	Preprocessor String Macros
	String manipulation macros.
	Library Version Macros
	Useful to check and match library version in order to maintain backward compatibility.
	Version and Build diagnostics
	Macros and function useful to check at compiletime and at runtime which version of libavutil is in use.
	Deprecation guards
	Those FF_API_* defines are not part of public API.
	Constants
	Image related
	AVPicture types, pixel formats and basic image planes manipulation.
	Media Type
	Media Type.
Enumerations
enum	AVMediaType {   AVMEDIA_TYPE_UNKNOWN = -1, AVMEDIA_TYPE_VIDEO, AVMEDIA_TYPE_AUDIO, AVMEDIA_TYPE_DATA,   AVMEDIA_TYPE_SUBTITLE, AVMEDIA_TYPE_ATTACHMENT, AVMEDIA_TYPE_NB }
Functions
const char *	av_get_media_type_string (enum AVMediaType media_type)
	Return a string describing the media_type enum, NULL if media_type is unknown.
static void *	av_x_if_null (const void *p, const void *x)
	Return x default pointer in case p is NULL.

---

Enumeration Type Documentation

enum AVMediaType

Enumerator:

AVMEDIA_TYPE_UNKNOWN	Usually treated as AVMEDIA_TYPE_DATA.
AVMEDIA_TYPE_VIDEO
AVMEDIA_TYPE_AUDIO
AVMEDIA_TYPE_DATA	Opaque data information usually continuous.
AVMEDIA_TYPE_SUBTITLE
AVMEDIA_TYPE_ATTACHMENT	Opaque data information usually sparse.
AVMEDIA_TYPE_NB

Definition at line 230 of file avutil.h.

---

Function Documentation

const char* av_get_media_type_string

(

enum AVMediaType

media_type

)

Return a string describing the media_type enum, NULL if media_type is unknown.

Definition at line 51 of file utils.c.

Referenced by avcodec_string(), movie_common_init(), opt_output_file(), show_frame(), show_packet(), show_stream(), and transcode().

static void* av_x_if_null	(	const void *	p,
		const void *	x
	)			[inline, static]

Return x default pointer in case p is NULL.

Definition at line 338 of file avutil.h.

Referenced by init_filters(), parse_script(), and print_link_prop().