FFmpeg
Functions
h264_parse.c File Reference
#include "libavutil/mem.h"
#include "bytestream.h"
#include "get_bits.h"
#include "golomb.h"
#include "h264.h"
#include "h264pred.h"
#include "h264_parse.h"
#include "h264_ps.h"
#include "h2645_parse.h"
#include "mpegutils.h"

Go to the source code of this file.

Functions

int ff_h264_pred_weight_table (GetBitContext *gb, const SPS *sps, const int *ref_count, int slice_type_nos, H264PredWeightTable *pwt, int picture_structure, void *logctx)
 
int ff_h264_check_intra4x4_pred_mode (int8_t *pred_mode_cache, void *logctx, int top_samples_available, int left_samples_available)
 Check if the top & left blocks are available if needed and change the dc mode so it only uses the available blocks. More...
 
int ff_h264_check_intra_pred_mode (void *logctx, int top_samples_available, int left_samples_available, int mode, int is_chroma)
 Check if the top & left blocks are available if needed and change the dc mode so it only uses the available blocks. More...
 
int ff_h264_parse_ref_count (int *plist_count, int ref_count[2], GetBitContext *gb, const PPS *pps, int slice_type_nos, int picture_structure, void *logctx)
 
int ff_h264_init_poc (int pic_field_poc[2], int *pic_poc, const SPS *sps, H264POCContext *pc, int picture_structure, int nal_ref_idc)
 
static int decode_extradata_ps (const uint8_t *data, int size, H264ParamSets *ps, int is_avc, void *logctx)
 
static int decode_extradata_ps_mp4 (const uint8_t *buf, int buf_size, H264ParamSets *ps, int err_recognition, void *logctx)
 
int ff_h264_decode_extradata (const uint8_t *data, int size, H264ParamSets *ps, int *is_avc, int *nal_length_size, int err_recognition, void *logctx)
 
int ff_h264_get_profile (const SPS *sps)
 Compute profile from profile_idc and constraint_set?_flags. More...
 

Function Documentation

◆ ff_h264_pred_weight_table()

int ff_h264_pred_weight_table ( GetBitContext gb,
const SPS sps,
const int *  ref_count,
int  slice_type_nos,
H264PredWeightTable pwt,
int  picture_structure,
void *  logctx 
)

Definition at line 30 of file h264_parse.c.

Referenced by h264_slice_header_parse(), and scan_mmco_reset().

◆ ff_h264_check_intra4x4_pred_mode()

int ff_h264_check_intra4x4_pred_mode ( int8_t *  pred_mode_cache,
void *  logctx,
int  top_samples_available,
int  left_samples_available 
)

Check if the top & left blocks are available if needed and change the dc mode so it only uses the available blocks.

Check if the top & left blocks are available if needed & change the dc mode so it only uses the available blocks.

Definition at line 134 of file h264_parse.c.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and svq3_decode_mb().

◆ ff_h264_check_intra_pred_mode()

int ff_h264_check_intra_pred_mode ( void *  logctx,
int  top_samples_available,
int  left_samples_available,
int  mode,
int  is_chroma 
)

Check if the top & left blocks are available if needed and change the dc mode so it only uses the available blocks.

Check if the top & left blocks are available if needed & change the dc mode so it only uses the available blocks.

Definition at line 182 of file h264_parse.c.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and svq3_decode_mb().

◆ ff_h264_parse_ref_count()

int ff_h264_parse_ref_count ( int *  plist_count,
int  ref_count[2],
GetBitContext gb,
const PPS pps,
int  slice_type_nos,
int  picture_structure,
void *  logctx 
)

Definition at line 222 of file h264_parse.c.

Referenced by h264_slice_header_parse(), and scan_mmco_reset().

◆ ff_h264_init_poc()

int ff_h264_init_poc ( int  pic_field_poc[2],
int *  pic_poc,
const SPS sps,
H264POCContext pc,
int  picture_structure,
int  nal_ref_idc 
)

Definition at line 280 of file h264_parse.c.

Referenced by h264_field_start(), h264_filter(), and parse_nal_units().

◆ decode_extradata_ps()

static int decode_extradata_ps ( const uint8_t *  data,
int  size,
H264ParamSets ps,
int  is_avc,
void *  logctx 
)
static

Definition at line 367 of file h264_parse.c.

Referenced by decode_extradata_ps_mp4(), and ff_h264_decode_extradata().

◆ decode_extradata_ps_mp4()

static int decode_extradata_ps_mp4 ( const uint8_t *  buf,
int  buf_size,
H264ParamSets ps,
int  err_recognition,
void *  logctx 
)
static

Definition at line 421 of file h264_parse.c.

Referenced by ff_h264_decode_extradata().

◆ ff_h264_decode_extradata()

int ff_h264_decode_extradata ( const uint8_t *  data,
int  size,
H264ParamSets ps,
int *  is_avc,
int *  nal_length_size,
int  err_recognition,
void *  logctx 
)

Definition at line 466 of file h264_parse.c.

Referenced by h264_decode_frame(), h264_decode_init(), and h264_parse().

◆ ff_h264_get_profile()

int ff_h264_get_profile ( const SPS sps)

Compute profile from profile_idc and constraint_set?_flags.

compute profile from sps

Parameters
spsSPS
Returns
profile as defined by AV_PROFILE_H264_*

Definition at line 533 of file h264_parse.c.

Referenced by h264_init_ps(), and parse_nal_units().