H.264 / AVC / MPEG4 part10 parameter set decoding. More...

#include <inttypes.h>
#include "libavutil/imgutils.h"
#include "internal.h"
#include "avcodec.h"
#include "h264.h"
#include "h264data.h"
#include "golomb.h"

Macros
#define	MAX_LOG2_MAX_FRAME_NUM (12 + 4)

#define	MIN_LOG2_MAX_FRAME_NUM 4

#define	QP(qP, depth) ((qP) + 6 * ((depth) - 8))

#define	CHROMA_QP_TABLE_END(d)

Functions
static int	decode_hrd_parameters (H264Context h, SPS sps)

static int	decode_vui_parameters (H264Context h, SPS sps)

static void	decode_scaling_list (H264Context h, uint8_t factors, int size, const uint8_t jvt_list, const uint8_t fallback_list)

static void	decode_scaling_matrices (H264Context h, SPS sps, PPS pps, int is_sps, uint8_t(scaling_matrix4)[16], uint8_t(*scaling_matrix8)[64])

int	ff_h264_decode_seq_parameter_set (H264Context *h, int ignore_truncation)
	Decode SPS. More...

static void	build_qp_table (PPS *pps, int t, int index, const int depth)

static int	more_rbsp_data_in_pps (H264Context h, PPS pps)

int	ff_h264_decode_picture_parameter_set (H264Context *h, int bit_length)
	Decode PPS. More...

Variables
const uint8_t	ff_h264_chroma_qp [7][QP_MAX_NUM+1]
	One chroma qp table for each possible bit depth (8-14). More...

static const uint8_t	default_scaling4 [2][16]

static const uint8_t	default_scaling8 [2][64]

static const int	level_max_dpb_mbs [][2]

Detailed Description

H.264 / AVC / MPEG4 part10 parameter set decoding.

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

Definition in file h264_ps.c.

Macro Definition Documentation

#define MAX_LOG2_MAX_FRAME_NUM (12 + 4)

Definition at line 37 of file h264_ps.c.

Referenced by ff_h264_decode_seq_parameter_set().

#define MIN_LOG2_MAX_FRAME_NUM 4

Definition at line 38 of file h264_ps.c.

Referenced by ff_h264_decode_seq_parameter_set().

#define QP	(	qP,
		depth
	)	((qP) + 6 * ((depth) - 8))

Definition at line 40 of file h264_ps.c.

Referenced by avfilter_register_all(), dering_TMPL(), do_a_deblock_C(), postProcess_TMPL(), and vertX1Filter_TMPL().

#define CHROMA_QP_TABLE_END ( d )

Value:

QP(0,  d), QP(1,  d), QP(2,  d), QP(3,  d), QP(4,  d), QP(5,  d),   \
    QP(6,  d), QP(7,  d), QP(8,  d), QP(9,  d), QP(10, d), QP(11, d),   \
    QP(12, d), QP(13, d), QP(14, d), QP(15, d), QP(16, d), QP(17, d),   \
    QP(18, d), QP(19, d), QP(20, d), QP(21, d), QP(22, d), QP(23, d),   \
    QP(24, d), QP(25, d), QP(26, d), QP(27, d), QP(28, d), QP(29, d),   \
    QP(29, d), QP(30, d), QP(31, d), QP(32, d), QP(32, d), QP(33, d),   \
    QP(34, d), QP(34, d), QP(35, d), QP(35, d), QP(36, d), QP(36, d),   \
    QP(37, d), QP(37, d), QP(37, d), QP(38, d), QP(38, d), QP(38, d),   \
    QP(39, d), QP(39, d), QP(39, d), QP(39, d)

Definition at line 42 of file h264_ps.c.

Function Documentation

static int decode_hrd_parameters	(	H264Context *	h,
		SPS *	sps
	)

inlinestatic

Definition at line 130 of file h264_ps.c.

Referenced by decode_vui_parameters().

static int decode_vui_parameters	(	H264Context *	h,
		SPS *	sps
	)

inlinestatic

Definition at line 155 of file h264_ps.c.

Referenced by ff_h264_decode_seq_parameter_set().

static void decode_scaling_list	(	H264Context *	h,
		uint8_t *	factors,
		int	size,
		const uint8_t *	jvt_list,
		const uint8_t *	fallback_list
	)

static

Definition at line 270 of file h264_ps.c.

Referenced by decode_scaling_matrices().

static void decode_scaling_matrices	(	H264Context *	h,
		SPS *	sps,
		PPS *	pps,
		int	is_sps,
		uint8_t(*)	scaling_matrix4[16],
		uint8_t(*)	scaling_matrix8[64]
	)

static

Definition at line 290 of file h264_ps.c.

Referenced by ff_h264_decode_picture_parameter_set(), and ff_h264_decode_seq_parameter_set().

int ff_h264_decode_seq_parameter_set	(	H264Context *	h,
		int	ignore_truncation
	)

Decode SPS.

Definition at line 323 of file h264_ps.c.

Referenced by decode_nal_units(), and parse_nal_units().

static void build_qp_table	(	PPS *	pps,
		int	t,
		int	index,
		const int	depth
	)

static

Definition at line 606 of file h264_ps.c.

Referenced by ff_h264_decode_picture_parameter_set().

static int more_rbsp_data_in_pps	(	H264Context *	h,
		PPS *	pps
	)

static

Definition at line 615 of file h264_ps.c.

Referenced by ff_h264_decode_picture_parameter_set().

int ff_h264_decode_picture_parameter_set	(	H264Context *	h,
		int	bit_length
	)

Decode PPS.

Definition at line 630 of file h264_ps.c.

Referenced by decode_nal_units(), and parse_nal_units().

Variable Documentation

const uint8_t ff_h264_chroma_qp[7][QP_MAX_NUM+1]

Initial value:

= {
    { CHROMA_QP_TABLE_END(8) },
    { 0, 1, 2, 3, 4, 5,
      CHROMA_QP_TABLE_END(9) },
    { 0, 1, 2, 3,  4,  5,
      6, 7, 8, 9, 10, 11,
      CHROMA_QP_TABLE_END(10) },
    { 0,  1, 2, 3,  4,  5,
      6,  7, 8, 9, 10, 11,
      12,13,14,15, 16, 17,
      CHROMA_QP_TABLE_END(11) },
    { 0,  1, 2, 3,  4,  5,
      6,  7, 8, 9, 10, 11,
      12,13,14,15, 16, 17,
      18,19,20,21, 22, 23,
      CHROMA_QP_TABLE_END(12) },
    { 0,  1, 2, 3,  4,  5,
      6,  7, 8, 9, 10, 11,
      12,13,14,15, 16, 17,
      18,19,20,21, 22, 23,
      24,25,26,27, 28, 29,
      CHROMA_QP_TABLE_END(13) },
    { 0,  1, 2, 3,  4,  5,
      6,  7, 8, 9, 10, 11,
      12,13,14,15, 16, 17,
      18,19,20,21, 22, 23,
      24,25,26,27, 28, 29,
      30,31,32,33, 34, 35,
      CHROMA_QP_TABLE_END(14) },
}

One chroma qp table for each possible bit depth (8-14).

Definition at line 53 of file h264_ps.c.

Referenced by build_qp_table(), and hl_decode_mb().

const uint8_t default_scaling4[2][16]

static

Initial value:

= {
    {  6, 13, 20, 28, 13, 20, 28, 32,
      20, 28, 32, 37, 28, 32, 37, 42 },
    { 10, 14, 20, 24, 14, 20, 24, 27,
      20, 24, 27, 30, 24, 27, 30, 34 }
}

Definition at line 84 of file h264_ps.c.

Referenced by decode_scaling_matrices().

const uint8_t default_scaling8[2][64]

static

Initial value:

= {
    {  6, 10, 13, 16, 18, 23, 25, 27,
      10, 11, 16, 18, 23, 25, 27, 29,
      13, 16, 18, 23, 25, 27, 29, 31,
      16, 18, 23, 25, 27, 29, 31, 33,
      18, 23, 25, 27, 29, 31, 33, 36,
      23, 25, 27, 29, 31, 33, 36, 38,
      25, 27, 29, 31, 33, 36, 38, 40,
      27, 29, 31, 33, 36, 38, 40, 42 },
    {  9, 13, 15, 17, 19, 21, 22, 24,
      13, 13, 17, 19, 21, 22, 24, 25,
      15, 17, 19, 21, 22, 24, 25, 27,
      17, 19, 21, 22, 24, 25, 27, 28,
      19, 21, 22, 24, 25, 27, 28, 30,
      21, 22, 24, 25, 27, 28, 30, 32,
      22, 24, 25, 27, 28, 30, 32, 33,
      24, 25, 27, 28, 30, 32, 33, 35 }
}

Definition at line 91 of file h264_ps.c.

Referenced by decode_scaling_matrices().

const int level_max_dpb_mbs[][2]

static

Initial value:

= {
    { 10, 396       },
    { 11, 900       },
    { 12, 2376      },
    { 13, 2376      },
    { 20, 2376      },
    { 21, 4752      },
    { 22, 8100      },
    { 30, 8100      },
    { 31, 18000     },
    { 32, 20480     },
    { 40, 32768     },
    { 41, 32768     },
    { 42, 34816     },
    { 50, 110400    },
    { 51, 184320    },
    { 52, 184320    },
}

Definition at line 111 of file h264_ps.c.

Referenced by ff_h264_decode_seq_parameter_set().

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation