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avutil.go
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avutil.go
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/*
Use of this source code is governed by a MIT license that can be found in the LICENSE file.
by Giorgis (habtom@giorgis.io)
Some generic features and utilities provided by the libavutil library
The libavutil library is a utility library to aid portable multimedia programming.
It contains safe portable string functions, random number generators, data structures,
additional mathematics functions, cryptography and multimedia related functionality
*/
package avutil
//#cgo pkg-config: libavutil
//#include <libavutil/avutil.h>
//#include <stdlib.h>
import "C"
import (
"unsafe"
)
type (
AvOptions C.struct_AVOptions
AvDictionary C.struct_AVDictionary
AvTree C.struct_AVTree
AvRational C.struct_AVRational
AvMediaType C.enum_AVMediaType
AvPictureType C.enum_AVPictureType
File C.FILE
)
//unsigned avutil_version (void)
//Return the LIBAvUTIL_VERSION_INT constant.
func AvutilVersion() uint {
return uint(C.avutil_version())
}
//const char * avutil_configuration (void)
//Return the libavutil build-time configuration.
func Avutil_configuration() string {
return C.GoString(C.avutil_configuration())
}
//const char * avutil_license (void)
//Return the libavutil license.
func Avutil_license() string {
return C.GoString(C.avutil_license())
}
//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.
func Av_get_media_type_string(mt AvMediaType) string {
return C.GoString(C.av_get_media_type_string((C.enum_AVMediaType)(mt)))
}
//char av_get_picture_type_char (enum AvPictureType pict_type)
//Return a single letter to describe the given picture type pict_type.
func Av_get_picture_type_char(pt AvPictureType) string {
return string(C.av_get_picture_type_char((C.enum_AVPictureType)(pt)))
}
//static void * av_x_if_null (const void *p, const void *x)
//Return x default pointer in case p is NULL.
func Av_x_if_null(p, x int) {
C.av_x_if_null(unsafe.Pointer(&p), unsafe.Pointer(&x))
}
//unsigned av_int_list_length_for_size (unsigned elsize, const void *list, uint64_t term) av_pure
//Compute the length of an integer list.
func Av_int_list_length_for_size(e uint, l int, t uint64) uint {
return uint(C.av_int_list_length_for_size(C.uint(e), unsafe.Pointer(&l), (C.uint64_t)(t)))
}
//FILE * av_fopen_utf8 (const char *path, const char *mode)
//Open a file using a UTF-8 filename.
func Av_fopen_utf8(p, m string) *File {
f := C.av_fopen_utf8(C.CString(p), C.CString(m))
return (*File)(f)
}
//AvRational av_get_time_base_q (void)
//Return the fractional representation of the internal time base.
func Av_get_time_base_q() AvRational {
return (AvRational)(C.av_get_time_base_q())
}