FFmpeg 5.1.6
Data Structures | Enumerations | Functions
codec_par.h File Reference
#include <stdint.h>
#include "libavutil/avutil.h"
#include "libavutil/channel_layout.h"
#include "libavutil/rational.h"
#include "libavutil/pixfmt.h"
#include "codec_id.h"

Go to the source code of this file.

Data Structures

struct  AVCodecParameters
 This struct describes the properties of an encoded stream. More...
 

Enumerations

enum  AVFieldOrder {
  AV_FIELD_UNKNOWN , AV_FIELD_PROGRESSIVE , AV_FIELD_TT , AV_FIELD_BB ,
  AV_FIELD_TB , AV_FIELD_BT
}
 

Functions

AVCodecParametersavcodec_parameters_alloc (void)
 Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0). More...
 
void avcodec_parameters_free (AVCodecParameters **par)
 Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer. More...
 
int avcodec_parameters_copy (AVCodecParameters *dst, const AVCodecParameters *src)
 Copy the contents of src to dst. More...
 
int av_get_audio_frame_duration2 (AVCodecParameters *par, int frame_bytes)
 This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters instead of an AVCodecContext. More...
 

Enumeration Type Documentation

◆ AVFieldOrder

Enumerator
AV_FIELD_UNKNOWN 
AV_FIELD_PROGRESSIVE 
AV_FIELD_TT 
AV_FIELD_BB 
AV_FIELD_TB 
AV_FIELD_BT 

Definition at line 37 of file codec_par.h.

Function Documentation

◆ avcodec_parameters_alloc()

AVCodecParameters * avcodec_parameters_alloc ( void  )

Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).

The returned struct must be freed with avcodec_parameters_free().

◆ avcodec_parameters_free()

void avcodec_parameters_free ( AVCodecParameters **  par)

Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer.

◆ avcodec_parameters_copy()

int avcodec_parameters_copy ( AVCodecParameters dst,
const AVCodecParameters src 
)

Copy the contents of src to dst.

Any allocated fields in dst are freed and replaced with newly allocated duplicates of the corresponding fields in src.

Returns
>= 0 on success, a negative AVERROR code on failure.
Examples
remuxing.c, and transcoding.c.

Referenced by main(), and open_output_file().

◆ av_get_audio_frame_duration2()

int av_get_audio_frame_duration2 ( AVCodecParameters par,
int  frame_bytes 
)

This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters instead of an AVCodecContext.