h264dec.h File Reference

H.264 / AVC / MPEG-4 part10 codec. More...

#include "libavutil/mem_internal.h"
#include "cabac.h"
#include "error_resilience.h"
#include "h264_parse.h"
#include "h264_ps.h"
#include "h264_sei.h"
#include "h2645_parse.h"
#include "h264chroma.h"
#include "h264dsp.h"
#include "h264pred.h"
#include "h264qpel.h"
#include "mpegutils.h"
#include "threadframe.h"
#include "videodsp.h"

Go to the source code of this file.

Data Structures
struct	MMCO
	Memory management control operation. More...
struct	H264Picture
struct	H264Ref
struct	H264SliceContext
struct	H264Context
	H264Context. More...

Macros
#define	H264_MAX_PICTURE_COUNT   36
#define	ALLOW_INTERLACE
#define	FMO   0
#define	MAX_SLICES   32
	The maximum number of slices supported by the decoder.
#define	MB_MBAFF(h)
#define	MB_FIELD(sl)
#define	FRAME_MBAFF(h)
#define	FIELD_PICTURE(h)
#define	LEFT_MBS   2
#define	LTOP   0
#define	LBOT   1
#define	LEFT(i)
#define	FIELD_OR_MBAFF_PICTURE(h)
#define	CABAC(h)
#define	CHROMA(h)
#define	CHROMA422(h)
#define	CHROMA444(h)
#define	IS_REF0(a)
#define	IS_8x8DCT(a)
#define	IS_SUB_8X8(a)
#define	IS_SUB_8X4(a)
#define	IS_SUB_4X8(a)
#define	IS_SUB_4X4(a)
#define	IS_DIR(a, part, list)
#define	USES_LIST(a, list)
#define	DELAYED_PIC_REF   (1 << 2)
	H264Picture.reference has this flag set, when the picture is held for delayed output.
#define	LIST_NOT_USED   -1
#define	FRAME_RECOVERED_IDR   (1 << 0)
	We have seen an IDR, so all the following frames in coded order are correctly decodable.
#define	FRAME_RECOVERED_SEI   (1 << 1)
	Sufficient number of frames have been decoded since a SEI recovery point, so all the following frames in presentation order are correct.
#define	FRAME_RECOVERED_HEURISTIC   (1 << 2)
	Recovery point detected by heuristic.
#define	LUMA_DC_BLOCK_INDEX   48
#define	CHROMA_DC_BLOCK_INDEX   49

Functions
int	ff_h264_get_slice_type (const H264SliceContext *sl)
	Reconstruct bitstream slice_type.
int	ff_h264_alloc_tables (H264Context *h)
	Allocate tables.
int	ff_h264_decode_ref_pic_list_reordering (H264SliceContext *sl, void *logctx)
int	ff_h264_build_ref_list (H264Context *h, H264SliceContext *sl)
void	ff_h264_remove_all_refs (H264Context *h)
int	ff_h264_execute_ref_pic_marking (H264Context *h)
	Execute the reference picture marking (memory management control operations).
int	ff_h264_decode_ref_pic_marking (H264SliceContext *sl, GetBitContext *gb, const H2645NAL *nal, void *logctx)
void	ff_h264_hl_decode_mb (const H264Context *h, H264SliceContext *sl)
void	ff_h264_decode_init_vlc (void)
int	ff_h264_decode_mb_cavlc (const H264Context *h, H264SliceContext *sl)
	Decode a macroblock.
int	ff_h264_decode_mb_cabac (const H264Context *h, H264SliceContext *sl)
	Decode a CABAC coded macroblock.
void	ff_h264_init_cabac_states (const H264Context *h, H264SliceContext *sl)
void	ff_h264_direct_dist_scale_factor (const H264Context *const h, H264SliceContext *sl)
void	ff_h264_direct_ref_list_init (const H264Context *const h, H264SliceContext *sl)
void	ff_h264_pred_direct_motion (const H264Context *const h, H264SliceContext *sl, int *mb_type)
void	ff_h264_filter_mb_fast (const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize)
void	ff_h264_filter_mb (const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize)
static av_always_inline int	get_chroma_qp (const PPS *pps, int t, int qscale)
	Get the chroma qp.
int	ff_h264_field_end (H264Context *h, H264SliceContext *sl, int in_setup)
int	ff_h264_ref_picture (H264Picture *dst, const H264Picture *src)
int	ff_h264_replace_picture (H264Picture *dst, const H264Picture *src)
void	ff_h264_unref_picture (H264Picture *pic)
void	ff_h264_slice_context_init (H264Context *h, H264SliceContext *sl)
	Init slice context.
void	ff_h264_draw_horiz_band (const H264Context *h, H264SliceContext *sl, int y, int height)
int	ff_h264_queue_decode_slice (H264Context *h, const H2645NAL *nal)
	Submit a slice for decoding.
int	ff_h264_execute_decode_slices (H264Context *h)
	Call decode_slice() for each context.
int	ff_h264_update_thread_context (AVCodecContext *dst, const AVCodecContext *src)
int	ff_h264_update_thread_context_for_user (AVCodecContext *dst, const AVCodecContext *src)
void	ff_h264_flush_change (H264Context *h)
void	ff_h264_free_tables (H264Context *h)
void	ff_h264_set_erpic (ERPicture *dst, const H264Picture *src)

Variables
const uint16_t	ff_h264_mb_sizes [4]

Detailed Description

H.264 / AVC / MPEG-4 part10 codec.

Author

Michael Niedermayer micha.nosp@m.elni.nosp@m.@gmx..nosp@m.at

Definition in file h264dec.h.

Macro Definition Documentation

H264_MAX_PICTURE_COUNT

#define H264_MAX_PICTURE_COUNT   36

Definition at line 47 of file h264dec.h.

Referenced by copy_picture_range(), ff_h264_update_thread_context(), find_unused_picture(), h264_decode_end(), h264_decode_flush(), h264_init_context(), release_unused_pictures(), vk_h264_end_frame(), and vk_h264_start_frame().

ALLOW_INTERLACE

#define ALLOW_INTERLACE

Definition at line 51 of file h264dec.h.

FMO

#define FMO   0

Definition at line 53 of file h264dec.h.

Referenced by ff_h264_alloc_tables(), fill_decode_neighbors(), and write_back_motion_list().

MAX_SLICES

#define MAX_SLICES   32

The maximum number of slices supported by the decoder.

must be a power of 2

Definition at line 59 of file h264dec.h.

MB_MBAFF

#define MB_MBAFF

(

h

)

Value:

(h)->mb_mbaff

Definition at line 62 of file h264dec.h.

Referenced by await_references(), backup_mb_border(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), fill_filter_caches_inter(), and xchg_mb_border().

MB_FIELD

#define MB_FIELD

(

sl

)

Value:

(sl)->mb_field_decoding_flag

Definition at line 63 of file h264dec.h.

Referenced by decode_cabac_mb_skip(), decode_cabac_residual_internal(), decode_mb_skip(), fetch_diagonal_mv(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_h264_filter_mb(), fill_decode_caches(), fill_decode_neighbors(), fill_filter_caches(), get_lowest_part_y(), hl_decode_mb(), hl_decode_mb_444(), loop_filter(), mc_dir_part(), mc_part_std(), mc_part_weighted(), and xchg_mb_border().

FRAME_MBAFF

#define FRAME_MBAFF

(

h

)

Value:

(h)->mb_aff_frame

Definition at line 64 of file h264dec.h.

Referenced by backup_mb_border(), decode_cabac_mb_skip(), decode_finish_row(), decode_slice(), fetch_diagonal_mv(), ff_h264_build_ref_list(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_h264_direct_dist_scale_factor(), ff_h264_direct_ref_list_init(), ff_h264_filter_mb(), ff_h264_filter_mb_fast(), fill_decode_caches(), fill_decode_neighbors(), fill_filter_caches(), filter_mb_dir(), h264_slice_init(), hl_decode_mb(), hl_decode_mb_444(), implicit_weight_table(), loop_filter(), pred_spatial_direct_motion(), pred_temp_direct_motion(), and xchg_mb_border().

FIELD_PICTURE

#define FIELD_PICTURE

(

h

)

Value:

((h)->picture_structure != PICT_FRAME)

Definition at line 65 of file h264dec.h.

Referenced by await_reference_mb_row(), await_references(), decode_cabac_mb_skip(), decode_finish_row(), decode_nal_units(), ff_h264_build_ref_list(), ff_h264_decode_ref_pic_marking(), ff_h264_direct_dist_scale_factor(), ff_h264_field_end(), ff_h264_queue_decode_slice(), generate_sliding_window_mmcos(), h264_field_start(), h264_filter_mb_fast_internal(), h264_initialise_ref_list(), nvdec_h264_start_frame(), pic_num_extract(), and vk_h264_start_frame().

LEFT_MBS

#define LEFT_MBS   2

Definition at line 66 of file h264dec.h.

Referenced by fill_decode_caches(), fill_decode_neighbors(), fill_filter_caches(), and fill_filter_caches_inter().

LTOP

#define LTOP   0

Definition at line 67 of file h264dec.h.

Referenced by decode_cabac_intra_mb_type(), decode_cabac_mb_chroma_pre_mode(), ff_h264_decode_mb_cabac(), ff_h264_filter_mb(), fill_decode_caches(), fill_decode_neighbors(), fill_filter_caches(), fill_filter_caches_inter(), filter_mb_dir(), h264_filter_mb_fast_internal(), and pred_pskip_motion().

LBOT

#define LBOT   1

Definition at line 68 of file h264dec.h.

Referenced by fill_decode_caches(), fill_decode_neighbors(), and fill_filter_caches().

LEFT

#define LEFT

(

i

)

Value:

(i)

Definition at line 69 of file h264dec.h.

FIELD_OR_MBAFF_PICTURE

#define FIELD_OR_MBAFF_PICTURE

(

h

)

Value:

(FRAME_MBAFF(h) || FIELD_PICTURE(h))

Definition at line 82 of file h264dec.h.

Referenced by decode_slice(), ff_h264_execute_decode_slices(), fill_slice_long(), h264_export_frame_props(), h264_slice_init(), and vaapi_h264_decode_slice().

CABAC

#define CABAC

(

h

)

Value:

(h)->ps.pps->cabac

Definition at line 85 of file h264dec.h.

CHROMA

#define CHROMA

(

h

)

Value:

((h)->ps.sps->chroma_format_idc)

Definition at line 88 of file h264dec.h.

Referenced by add_tu(), alf_filter_chroma(), alloc_frame(), bcw_idx_decode(), check_alf_filter(), check_put_vvc_chroma(), check_put_vvc_chroma_uni(), config_input(), derive_dmvr_bdof_flag(), export_frame_params(), ff_h264_filter_mb(), ff_vvc_alf_dsp_init(), ff_vvc_deblock_bs(), ff_vvc_dsp_init_aarch64(), ff_vvc_dsp_init_riscv(), ff_vvc_inter_dsp_init(), ff_vvc_reconstruct(), ff_vvc_set_new_ref(), filter_frame(), h264_filter_mb_fast_internal(), hls_transform_unit(), intra_chroma_pred_modes(), max_filter_length_chroma(), min_cb_nz_tl_init(), min_cb_tl_init(), min_tu_nz_tl_init(), msm_tl_init(), pred_mode_decode(), pred_weight_table(), query_formats(), set_cu_tabs(), sh_partition_constraints(), and vvc_deblock_bs_chroma().

CHROMA422

#define CHROMA422

(

h

)

Value:

((h)->ps.sps->chroma_format_idc == 2)

Definition at line 89 of file h264dec.h.

Referenced by backup_mb_border(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_h264_filter_mb(), fill_decode_caches(), filter_mb_dir(), get_pixel_format(), h264_filter_mb_fast_internal(), and hl_decode_mb().

CHROMA444

#define CHROMA444

(

h

)

Value:

((h)->ps.sps->chroma_format_idc == 3)

Definition at line 90 of file h264dec.h.

Referenced by backup_mb_border(), decode_cabac_residual_nondc(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_h264_filter_mb(), ff_h264_hl_decode_mb(), fill_decode_caches(), filter_mb_dir(), get_pixel_format(), h264_filter_mb_fast_internal(), and loop_filter().

IS_REF0

#define IS_REF0

(

a

)

Value:

((a) & MB_TYPE_REF0)

Definition at line 92 of file h264dec.h.

Referenced by ff_h264_decode_mb_cavlc().

IS_8x8DCT

#define IS_8x8DCT

(

a

)

Value:

((a) & MB_TYPE_8x8DCT)

Definition at line 93 of file h264dec.h.

Referenced by decode_cabac_luma_residual(), decode_luma_residual(), ff_h264_decode_mb_cabac(), ff_h264_filter_mb(), fill_decode_caches(), fill_filter_caches(), filter_mb_dir(), h264_filter_mb_fast_internal(), hl_decode_mb_idct_luma(), and hl_decode_mb_predict_luma().

IS_SUB_8X8

#define IS_SUB_8X8

(

a

)

Value:

((a) & MB_TYPE_16x16)

Definition at line 94 of file h264dec.h.

Referenced by await_references(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), hl_motion(), pred_spatial_direct_motion(), and pred_temp_direct_motion().

IS_SUB_8X4

#define IS_SUB_8X4

(

a

)

Value:

((a) & MB_TYPE_16x8)

Definition at line 95 of file h264dec.h.

Referenced by await_references(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and hl_motion().

IS_SUB_4X8

#define IS_SUB_4X8

(

a

)

Value:

((a) & MB_TYPE_8x16)

Definition at line 96 of file h264dec.h.

Referenced by await_references(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and hl_motion().

IS_SUB_4X4

#define IS_SUB_4X4

(

a

)

Value:

((a) & MB_TYPE_8x8)

Definition at line 97 of file h264dec.h.

Referenced by await_references(), and hl_motion().

IS_DIR

#define IS_DIR	(		a,
			part,
			list )

Value:

((a) & (MB_TYPE_P0L0 << ((part) + 2 * (list))))

Definition at line 98 of file h264dec.h.

Referenced by await_references(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), and hl_motion().

USES_LIST

#define USES_LIST	(		a,
			list )

Value:

((a) & ((MB_TYPE_P0L0 | MB_TYPE_P1L0) << (2 * (list))))

Definition at line 101 of file h264dec.h.

Referenced by fill_decode_caches(), fill_filter_caches_inter(), hl_decode_mb(), hl_decode_mb_444(), hl_motion(), pred_pskip_motion(), and write_back_motion().

DELAYED_PIC_REF

#define DELAYED_PIC_REF   (1 << 2)

H264Picture.reference has this flag set, when the picture is held for delayed output.

Definition at line 149 of file h264dec.h.

LIST_NOT_USED

#define LIST_NOT_USED   -1

Definition at line 395 of file h264dec.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), fill_decode_caches(), fill_filter_caches_inter(), pred_pskip_motion(), and write_back_motion().

FRAME_RECOVERED_IDR

#define FRAME_RECOVERED_IDR   (1 << 0)

We have seen an IDR, so all the following frames in coded order are correctly decodable.

Definition at line 522 of file h264dec.h.

Referenced by h264_field_start().

FRAME_RECOVERED_SEI

#define FRAME_RECOVERED_SEI   (1 << 1)

Sufficient number of frames have been decoded since a SEI recovery point, so all the following frames in presentation order are correct.

Definition at line 527 of file h264dec.h.

Referenced by h264_field_start(), h264_select_output_frame(), and send_next_delayed_frame().

FRAME_RECOVERED_HEURISTIC

#define FRAME_RECOVERED_HEURISTIC   (1 << 2)

Recovery point detected by heuristic.

Definition at line 531 of file h264dec.h.

Referenced by ff_h264_execute_ref_pic_marking().

LUMA_DC_BLOCK_INDEX

#define LUMA_DC_BLOCK_INDEX   48

Definition at line 666 of file h264dec.h.

Referenced by decode_cabac_luma_residual(), decode_cabac_residual_internal(), decode_luma_residual(), decode_residual(), get_cabac_cbf_ctx(), and hl_decode_mb_predict_luma().

CHROMA_DC_BLOCK_INDEX

#define CHROMA_DC_BLOCK_INDEX   49

Definition at line 667 of file h264dec.h.

Referenced by decode_cabac_residual_internal(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), get_cabac_cbf_ctx(), and hl_decode_mb().

Function Documentation

ff_h264_get_slice_type()

int ff_h264_get_slice_type

(

const H264SliceContext *

sl

)

Reconstruct bitstream slice_type.

Definition at line 2201 of file h264_slice.c.

Referenced by fill_slice_long(), and vaapi_h264_decode_slice().

ff_h264_alloc_tables()

int ff_h264_alloc_tables

(

H264Context *

h

)

Allocate tables.

needs width/height

Definition at line 187 of file h264dec.c.

Referenced by h264_slice_header_init().

ff_h264_decode_ref_pic_list_reordering()

int ff_h264_decode_ref_pic_list_reordering	(	H264SliceContext *	sl,
		void *	logctx )

Definition at line 431 of file h264_refs.c.

Referenced by h264_slice_header_parse().

ff_h264_build_ref_list()

int ff_h264_build_ref_list	(	H264Context *	h,
		H264SliceContext *	sl )

Definition at line 292 of file h264_refs.c.

Referenced by h264_slice_init().

ff_h264_remove_all_refs()

void ff_h264_remove_all_refs

(

H264Context *

h

)

Definition at line 568 of file h264_refs.c.

Referenced by h264_decode_end(), and idr().

ff_h264_execute_ref_pic_marking()

int ff_h264_execute_ref_pic_marking

(

H264Context *

h

)

Execute the reference picture marking (memory management control operations).

Definition at line 610 of file h264_refs.c.

Referenced by ff_h264_field_end(), ff_h264_update_thread_context(), and h264_field_start().

ff_h264_decode_ref_pic_marking()

int ff_h264_decode_ref_pic_marking	(	H264SliceContext *	sl,
		GetBitContext *	gb,
		const H2645NAL *	nal,
		void *	logctx )

Definition at line 832 of file h264_refs.c.

Referenced by h264_slice_header_parse().

ff_h264_hl_decode_mb()

void ff_h264_hl_decode_mb	(	const H264Context *	h,
		H264SliceContext *	sl )

Definition at line 800 of file h264_mb.c.

Referenced by decode_slice(), and h264_er_decode_mb().

ff_h264_decode_init_vlc()

void ff_h264_decode_init_vlc

(

void

)

Definition at line 315 of file h264_cavlc.c.

Referenced by h264_decode_init().

ff_h264_decode_mb_cavlc()

int ff_h264_decode_mb_cavlc	(	const H264Context *	h,
		H264SliceContext *	sl )

Decode a macroblock.

Returns

0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error

Definition at line 665 of file h264_cavlc.c.

Referenced by decode_slice().

ff_h264_decode_mb_cabac()

int ff_h264_decode_mb_cabac	(	const H264Context *	h,
		H264SliceContext *	sl )

Decode a CABAC coded macroblock.

Returns

0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error

Decode a CABAC coded macroblock.

Returns

0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR if an error is noticed

Definition at line 1920 of file h264_cabac.c.

Referenced by decode_slice().

ff_h264_init_cabac_states()

void ff_h264_init_cabac_states	(	const H264Context *	h,
		H264SliceContext *	sl )

Definition at line 1262 of file h264_cabac.c.

Referenced by decode_slice().

ff_h264_direct_dist_scale_factor()

void ff_h264_direct_dist_scale_factor	(	const H264Context *const	h,
		H264SliceContext *	sl )

Definition at line 61 of file h264_direct.c.

Referenced by h264_slice_init().

ff_h264_direct_ref_list_init()

void ff_h264_direct_ref_list_init	(	const H264Context *const	h,
		H264SliceContext *	sl )

Definition at line 120 of file h264_direct.c.

Referenced by h264_slice_init().

ff_h264_pred_direct_motion()

void ff_h264_pred_direct_motion	(	const H264Context *const	h,
		H264SliceContext *	sl,
		int *	mb_type )

Definition at line 729 of file h264_direct.c.

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

ff_h264_filter_mb_fast()

void ff_h264_filter_mb_fast	(	const H264Context *	h,
		H264SliceContext *	sl,
		int	mb_x,
		int	mb_y,
		uint8_t *	img_y,
		uint8_t *	img_cb,
		uint8_t *	img_cr,
		unsigned int	linesize,
		unsigned int	uvlinesize )

Definition at line 416 of file h264_loopfilter.c.

Referenced by loop_filter().

ff_h264_filter_mb()

void ff_h264_filter_mb	(	const H264Context *	h,
		H264SliceContext *	sl,
		int	mb_x,
		int	mb_y,
		uint8_t *	img_y,
		uint8_t *	img_cb,
		uint8_t *	img_cr,
		unsigned int	linesize,
		unsigned int	uvlinesize )

Definition at line 716 of file h264_loopfilter.c.

Referenced by ff_h264_filter_mb_fast(), and loop_filter().

get_chroma_qp()

static av_always_inline int get_chroma_qp ( const PPS * pps, int t, int qscale )

static

Get the chroma qp.

Definition at line 672 of file h264dec.h.

Referenced by ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_h264_filter_mb(), filter_mb_dir(), h264_filter_mb_fast_internal(), h264_slice_header_parse(), and loop_filter().

ff_h264_field_end()

int ff_h264_field_end	(	H264Context *	h,
		H264SliceContext *	sl,
		int	in_setup )

Definition at line 189 of file h264_picture.c.

Referenced by ff_h264_queue_decode_slice(), and h264_decode_frame().

ff_h264_ref_picture()

int ff_h264_ref_picture	(	H264Picture *	dst,
		const H264Picture *	src )

Definition at line 108 of file h264_picture.c.

Referenced by ff_h264_remove_all_refs(), and h264_frame_start().

ff_h264_replace_picture()

int ff_h264_replace_picture	(	H264Picture *	dst,
		const H264Picture *	src )

Definition at line 135 of file h264_picture.c.

Referenced by ff_h264_update_thread_context().

ff_h264_unref_picture()

void ff_h264_unref_picture

(

H264Picture *

pic

)

Definition at line 39 of file h264_picture.c.

Referenced by alloc_picture(), ff_h264_flush_change(), ff_h264_ref_picture(), ff_h264_remove_all_refs(), ff_h264_replace_picture(), h264_decode_flush(), h264_decode_frame(), h264_frame_start(), h264_free_pic(), and release_unused_pictures().

ff_h264_slice_context_init()

void ff_h264_slice_context_init	(	H264Context *	h,
		H264SliceContext *	sl )

Init slice context.

Definition at line 264 of file h264dec.c.

Referenced by h264_slice_header_init().

ff_h264_draw_horiz_band()

void ff_h264_draw_horiz_band	(	const H264Context *	h,
		H264SliceContext *	sl,
		int	y,
		int	height )

Definition at line 104 of file h264dec.c.

Referenced by d3d12va_h264_end_frame(), decode_finish_row(), dxva2_h264_end_frame(), vaapi_h264_end_frame(), and vdpau_h264_end_frame().

ff_h264_queue_decode_slice()

int ff_h264_queue_decode_slice	(	H264Context *	h,
		const H2645NAL *	nal )

Submit a slice for decoding.

Parse the slice header, starting a new field/frame if necessary. If any slices are queued for the previous field, they are decoded.

Definition at line 2076 of file h264_slice.c.

Referenced by decode_nal_units().

ff_h264_execute_decode_slices()

int ff_h264_execute_decode_slices

(

H264Context *

h

)

Call decode_slice() for each context.

Parameters

h	h264 master context

Definition at line 2783 of file h264_slice.c.

Referenced by decode_nal_units(), and ff_h264_queue_decode_slice().

ff_h264_update_thread_context()

int ff_h264_update_thread_context	(	AVCodecContext *	dst,
		const AVCodecContext *	src )

Definition at line 338 of file h264_slice.c.

ff_h264_update_thread_context_for_user()

int ff_h264_update_thread_context_for_user	(	AVCodecContext *	dst,
		const AVCodecContext *	src )

Definition at line 471 of file h264_slice.c.

ff_h264_flush_change()

void ff_h264_flush_change

(

H264Context *

h

)

Definition at line 451 of file h264dec.c.

Referenced by h264_decode_flush(), h264_decode_init(), and h264_init_ps().

ff_h264_free_tables()

void ff_h264_free_tables

(

H264Context *

h

)

Definition at line 142 of file h264dec.c.

Referenced by h264_decode_end(), h264_decode_flush(), and h264_slice_header_init().

ff_h264_set_erpic()

void ff_h264_set_erpic	(	ERPicture *	dst,
		const H264Picture *	src )

Definition at line 166 of file h264_picture.c.

Referenced by decode_nal_units(), and h264_frame_start().

Variable Documentation

ff_h264_mb_sizes

const uint16_t ff_h264_mb_sizes[4]

extern

Definition at line 60 of file h264dec.c.

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