FFmpeg
Data Structures | Macros | Functions
internal.h File Reference
#include <stdint.h>
#include "libavutil/channel_layout.h"
#include "avcodec.h"
#include "config.h"

Go to the source code of this file.

Data Structures

struct  AVCodecInternal
 

Macros

#define FF_SANE_NB_CHANNELS   512U
 
#define STRIDE_ALIGN   8
 

Functions

int ff_match_2uint16 (const uint16_t(*tab)[2], int size, int a, int b)
 Return the index into tab at which {a,b} match elements {[0],[1]} of tab. More...
 
unsigned int ff_toupper4 (unsigned int x)
 
int avpriv_h264_has_num_reorder_frames (AVCodecContext *avctx)
 
int avpriv_codec_get_cap_skip_frame_fill_param (const AVCodec *codec)
 
int ff_alloc_timecode_sei (const AVFrame *frame, AVRational rate, size_t prefix_len, void **data, size_t *sei_size)
 Check AVFrame for S12M timecode side data and allocate and fill TC SEI message with timecode info. More...
 
int64_t ff_guess_coded_bitrate (AVCodecContext *avctx)
 Get an estimated video bitrate based on frame size, frame rate and coded bits per pixel. More...
 

Detailed Description

common internal api header.

Definition in file internal.h.

Macro Definition Documentation

◆ FF_SANE_NB_CHANNELS

#define FF_SANE_NB_CHANNELS   512U

Definition at line 37 of file internal.h.

◆ STRIDE_ALIGN

#define STRIDE_ALIGN   8

Definition at line 46 of file internal.h.

Function Documentation

◆ ff_match_2uint16()

int ff_match_2uint16 ( const uint16_t(*)  tab[2],
int  size,
int  a,
int  b 
)

Return the index into tab at which {a,b} match elements {[0],[1]} of tab.

If there is no such matching pair then size is returned.

Definition at line 852 of file utils.c.

Referenced by ff_h263_encode_picture_header(), ff_mpv_encode_init(), and svq1_write_header().

◆ ff_toupper4()

unsigned int ff_toupper4 ( unsigned int  x)

Definition at line 29 of file to_upper4.h.

Referenced by ff_codec_get_id(), ff_mpv_decode_init(), and validate_codec_tag().

◆ avpriv_h264_has_num_reorder_frames()

int avpriv_h264_has_num_reorder_frames ( AVCodecContext avctx)

Definition at line 60 of file h264dec.c.

Referenced by has_decode_delay_been_guessed().

◆ avpriv_codec_get_cap_skip_frame_fill_param()

int avpriv_codec_get_cap_skip_frame_fill_param ( const AVCodec codec)

Definition at line 413 of file utils.c.

Referenced by try_decode_frame().

◆ ff_alloc_timecode_sei()

int ff_alloc_timecode_sei ( const AVFrame frame,
AVRational  rate,
size_t  prefix_len,
void **  data,
size_t *  sei_size 
)

Check AVFrame for S12M timecode side data and allocate and fill TC SEI message with timecode info.

Parameters
frameRaw frame to get S12M timecode side data from
rateThe frame rate
prefix_lenNumber of bytes to allocate before SEI message
dataPointer to a variable to store allocated memory Upon return the variable will hold NULL on error or if frame has no S12M timecode info. Otherwise it will point to prefix_len uninitialized bytes followed by *sei_size SEI message
sei_sizePointer to a variable to store generated SEI message length
Returns
Zero on success, negative error code on failure

Definition at line 1019 of file utils.c.

Referenced by prepare_sei_data_array().

◆ ff_guess_coded_bitrate()

int64_t ff_guess_coded_bitrate ( AVCodecContext avctx)

Get an estimated video bitrate based on frame size, frame rate and coded bits per pixel.

Definition at line 1083 of file utils.c.

Referenced by encode_init(), raw_encode_init(), v308_encode_init(), v408_encode_init(), v410_encode_init(), and y41p_encode_init().