Format register and lookup. More...

#include "avformat.h"
#include "internal.h"
#include "libavutil/atomic.h"
#include "libavutil/avstring.h"

Functions
AVInputFormat *	av_iformat_next (AVInputFormat *f)
	If f is NULL, returns the first registered input format, if f is non-NULL, returns the next registered input format after f or NULL if f is the last one.

AVOutputFormat *	av_oformat_next (AVOutputFormat *f)
	If f is NULL, returns the first registered output format, if f is non-NULL, returns the next registered output format after f or NULL if f is the last one.

void	av_register_input_format (AVInputFormat *format)

void	av_register_output_format (AVOutputFormat *format)

int	av_match_ext (const char filename, const char extensions)
	Return a positive value if the given filename has one of the given extensions, 0 otherwise.

static int	match_format (const char name, const char names)

AVOutputFormat *	av_guess_format (const char short_name, const char filename, const char *mime_type)
	Return the output format in the list of registered output formats which best matches the provided parameters, or return NULL if there is no match.

enum AVCodecID	av_guess_codec (AVOutputFormat fmt, const char short_name, const char filename, const char mime_type, enum AVMediaType type)
	Guess the codec ID based upon muxer and filename.

AVInputFormat *	av_find_input_format (const char *short_name)
	Find AVInputFormat based on the short name of the input format.

Variables
static AVInputFormat *	first_iformat = NULL
	head of registered input format linked list

static AVOutputFormat *	first_oformat = NULL
	head of registered output format linked list

static AVInputFormat **	last_iformat = &first_iformat

static AVOutputFormat **	last_oformat = &first_oformat