h264_parse.h File Reference

#include "config.h"
#include <stdint.h>
#include "libavutil/attributes.h"
#include "get_bits.h"
#include "h264_ps.h"

Go to the source code of this file.

Data Structures
struct	H264PredWeightTable
struct	H264POCContext

Macros
#define	MB_TYPE_REF0   MB_TYPE_CODEC_SPECIFIC
#define	MB_TYPE_8x8DCT   0x01000000

Enumerations
enum	MMCOOpcode {   MMCO_END = 0, MMCO_SHORT2UNUSED, MMCO_LONG2UNUSED, MMCO_SHORT2LONG,   MMCO_SET_MAX_LONG, MMCO_RESET, MMCO_LONG }
	Memory management control operation opcode. More...

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 & 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 & 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 *poc, int picture_structure, int nal_ref_idc)
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)
static av_always_inline uint32_t	pack16to32 (unsigned a, unsigned b)

Variables
static const uint8_t	scan8 [16 *3+3]

Detailed Description

H.264 decoder/parser shared code

Definition in file h264_parse.h.

Macro Definition Documentation

MB_TYPE_REF0

#define MB_TYPE_REF0   MB_TYPE_CODEC_SPECIFIC

Definition at line 36 of file h264_parse.h.

MB_TYPE_8x8DCT

#define MB_TYPE_8x8DCT   0x01000000

Definition at line 37 of file h264_parse.h.

Enumeration Type Documentation

MMCOOpcode

enum MMCOOpcode

Memory management control operation opcode.

Enumerator
MMCO_END
MMCO_SHORT2UNUSED
MMCO_LONG2UNUSED
MMCO_SHORT2LONG
MMCO_SET_MAX_LONG
MMCO_RESET
MMCO_LONG

Definition at line 59 of file h264_parse.h.

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 & 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 & 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 *	poc,
		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().

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().

pack16to32()

static av_always_inline uint32_t pack16to32 ( unsigned  a, unsigned  b  )

static

Definition at line 127 of file h264_parse.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), fill_filter_caches_inter(), h264_er_decode_mb(), pred_pskip_motion(), pred_spatial_direct_motion(), pred_temp_direct_motion(), and svq3_mc_dir().

Variable Documentation

scan8

const uint8_t scan8[16 *3+3]

static

Initial value:

= {
    4 +  1 * 8, 5 +  1 * 8, 4 +  2 * 8, 5 +  2 * 8,
    6 +  1 * 8, 7 +  1 * 8, 6 +  2 * 8, 7 +  2 * 8,
    4 +  3 * 8, 5 +  3 * 8, 4 +  4 * 8, 5 +  4 * 8,
    6 +  3 * 8, 7 +  3 * 8, 6 +  4 * 8, 7 +  4 * 8,
    4 +  6 * 8, 5 +  6 * 8, 4 +  7 * 8, 5 +  7 * 8,
    6 +  6 * 8, 7 +  6 * 8, 6 +  7 * 8, 7 +  7 * 8,
    4 +  8 * 8, 5 +  8 * 8, 4 +  9 * 8, 5 +  9 * 8,
    6 +  8 * 8, 7 +  8 * 8, 6 +  9 * 8, 7 +  9 * 8,
    4 + 11 * 8, 5 + 11 * 8, 4 + 12 * 8, 5 + 12 * 8,
    6 + 11 * 8, 7 + 11 * 8, 6 + 12 * 8, 7 + 12 * 8,
    4 + 13 * 8, 5 + 13 * 8, 4 + 14 * 8, 5 + 14 * 8,
    6 + 13 * 8, 7 + 13 * 8, 6 + 14 * 8, 7 + 14 * 8,
    0 +  0 * 8, 0 +  5 * 8, 0 + 10 * 8
}

Definition at line 40 of file h264_parse.h.

Referenced by check_idct_multiple(), decode_cabac_luma_residual(), decode_cabac_mb_ref(), decode_cabac_residual_dc(), decode_cabac_residual_dc_422(), decode_cabac_residual_internal(), decode_cabac_residual_nondc(), decode_luma_residual(), decode_residual(), decode_slice(), fetch_diagonal_mv(), ff_h264_check_intra4x4_pred_mode(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_h264_idct8_add4(), ff_h264_idct8_add4_8_lsx(), ff_h264_idct8_add4_8_mmi(), ff_h264_idct8_add4_msa(), ff_h264_idct_add16(), ff_h264_idct_add16_8_lsx(), ff_h264_idct_add16_8_mmi(), ff_h264_idct_add16_intra_8_lsx(), ff_h264_idct_add16_intra_msa(), ff_h264_idct_add16_msa(), ff_h264_idct_add16intra(), ff_h264_idct_add16intra_8_mmi(), ff_h264_idct_add8(), ff_h264_idct_add8_422(), ff_h264_idct_add8_422_8_lsx(), ff_h264_idct_add8_422_8_mmi(), ff_h264_idct_add8_422_msa(), ff_h264_idct_add8_8_lsx(), ff_h264_idct_add8_8_mmi(), ff_h264_idct_add8_msa(), ff_h264_slice_context_init(), fill_decode_caches(), fill_filter_caches(), fill_filter_caches_inter(), filter_mb_dir(), get_cabac_cbf_ctx(), get_lowest_part_list_y(), get_lowest_part_y(), h264_er_decode_mb(), h264_frame_start(), hl_decode_mb(), hl_decode_mb_444(), hl_decode_mb_idct_luma(), hl_decode_mb_predict_luma(), mc_dir_part(), mc_part(), mc_part_std(), mc_part_weighted(), pred_16x8_motion(), pred_8x16_motion(), pred_intra_mode(), pred_motion(), pred_non_zero_count(), pred_pskip_motion(), pred_spatial_direct_motion(), pred_temp_direct_motion(), prefetch_motion(), svq3_decode_frame(), svq3_decode_mb(), svq3_mc_dir(), svq3_pred_motion(), and write_back_motion_list().