ldecod.c File Reference

H.264/AVC reference decoder project main(). More...

#include "contributors.h"
#include <sys/stat.h>
#include "global.h"
#include "annexb.h"
#include "image.h"
#include "memalloc.h"
#include "mc_prediction.h"
#include "mbuffer.h"
#include "leaky_bucket.h"
#include "fmo.h"
#include "output.h"
#include "cabac.h"
#include "parset.h"
#include "sei.h"
#include "erc_api.h"
#include "quant.h"
#include "block.h"
#include "nalu.h"
#include "img_io.h"

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Defines

#define LOGFILE   "log.dec"

#define DATADECFILE   "dataDec.txt"

#define TRACEFILE   "trace_dec.txt"

#define OUTSTRING_SIZE   255

Functions

static void init_conf (ImageParameters *p_Img, InputParameters *p_Inp, char *config_filename)

static void Report (ImageParameters *p_Img)

static void init (ImageParameters *p_Img)

static void malloc_slice (InputParameters *p_Inp, ImageParameters *p_Img)

static void free_slice (Slice *currSlice)

void error (char *text, int code)

void JMDecHelpExit (void)

void Configure (ImageParameters *p_Img, InputParameters *p_Inp, int ac, char *av[])

static void alloc_img (ImageParameters **p_Img)

static void alloc_params (InputParameters **p_Inp)

static void alloc_decoder (DecoderParams **p_Dec)

static void free_img (ImageParameters *p_Img)

int main (int argc, char **argv)

void init_frext (ImageParameters *p_Img)

static void conf_read_check (int val, int expected)

DataPartition * AllocPartition (int n)

void FreePartition (DataPartition *dp, int n)

int init_global_buffers (ImageParameters *p_Img)

void free_global_buffers (ImageParameters *p_Img)

void report_stats_on_error (void)

Variables

DecoderParams * p_Dec

Detailed Description

H.264/AVC reference decoder project main().

ldecod.c

Author:

Main contributors (see contributors.h for copyright, address and affiliation details)

Inge Lille-Langøy <inge.lille-langoy@telenor.com>
Rickard Sjoberg <rickard.sjoberg@era.ericsson.se>
Stephan Wenger <stewe@cs.tu-berlin.de>
Jani Lainema <jani.lainema@nokia.com>
Sebastian Purreiter <sebastian.purreiter@mch.siemens.de>
Byeong-Moon Jeon <jeonbm@lge.com>
Gabi Blaettermann
Ye-Kui Wang <wyk@ieee.org>
Valeri George <george@hhi.de>
Karsten Suehring <suehring@hhi.de>

Definition in file ldecod.c.

Function Documentation

static void alloc_decoder ( DecoderParams ** p_Dec ) [static]

Allocate the Decoder Structure.

Output:: Decoder Parameters

Definition at line 350 of file ldecod.c.

References alloc_img(), alloc_params(), and no_mem_exit().

Referenced by main().

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static void alloc_img ( ImageParameters ** p_Img ) [static]

Allocate the Image structure.

Output:: Image Parameters ImageParameters *p_Img

Definition at line 302 of file ldecod.c.

References no_mem_exit().

Referenced by alloc_decoder().

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static void alloc_params ( InputParameters ** p_Inp ) [static]

Allocate the Input structure.

Output:: Input Parameters InputParameters *p_Img

Definition at line 336 of file ldecod.c.

References no_mem_exit().

Referenced by alloc_decoder().

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DataPartition* AllocPartition ( int n )

Allocates a stand-alone partition structure. Structure should be freed by FreePartition(); data structures.

Input:: n: number of partitions in the array

return: pointer to DataPartition Structure, zero-initialized

Definition at line 900 of file ldecod.c.

References error(), errortext, ET_SIZE, MAX_CODED_FRAME_SIZE, and Bitstream::streamBuffer.

Referenced by malloc_slice().

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static void conf_read_check	(	int	val,
		int	expected
	)			`[inline, static]`

exit with error message if reading from config file failed

Definition at line 592 of file ldecod.c.

References error().

Referenced by init_conf().

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void Configure	(	ImageParameters *	p_Img,
		InputParameters *	p_Inp,
		int	ac,
		char *	av[]
	)

set default bitstream name

set default output file name

set default reference file name

Input file

Output File

Reference File

Poc Scale

indicate UV writing for 4:0:0

Definition at line 136 of file ldecod.c.

References error(), errortext, ET_SIZE, init_conf(), JMDecHelpExit(), and PAR_OF_ANNEXB.

Referenced by main().

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void error	(	char *	text,
		int	code
	)

Error handling procedure. Print error message to stderr and exit with supplied code.

Parameters:

	text	Error message
	code	Exit code

Definition at line 93 of file ldecod.c.

References flush_dpb().

Referenced by adaptive_memory_management(), AllocPartition(), arideco_delete_decoding_environment(), buf2img_basic(), buf2img_bitshift(), buf2img_endian(), buffer2img(), check_num_ref(), conf_read_check(), Configure(), decode_one_component_b_slice(), decode_poc(), FmoGenerateMapUnitToSliceGroupMap(), free_mem1Dpel(), free_mem2D(), free_mem2Ddist(), free_mem2Ddouble(), free_mem2Dint(), free_mem2Dint64(), free_mem2Dlm(), free_mem2Dmp(), free_mem2Dmv(), free_mem2Dodouble(), free_mem2Doint(), free_mem2Dolm(), free_mem2Dpel(), free_mem2Dquant(), free_mem2Dshort(), free_mem2Duint16(), free_mem3D(), free_mem3Ddouble(), free_mem3Dint(), free_mem3Dint64(), free_mem3Dmp(), free_mem3Dmv(), free_mem3Dodouble(), free_mem3Doint(), free_mem3Dpel(), free_mem3Dquant(), free_mem3Dshort(), free_mem3Duint16(), free_mem4D(), free_mem4Dint(), free_mem4Dmv(), free_mem4Dpel(), free_mem4Dquant(), free_mem4Dshort(), free_mem4Duint16(), free_mem5Dint(), free_mem5Dmv(), free_mem5Dpel(), free_mem5Dquant(), free_mem5Dshort(), free_mem6Dshort(), free_mem7Dshort(), free_offset_mem2Dshort(), get_smallest_poc(), getDpbSize(), img2buf_endian(), init_conf(), init_dpb(), init_picture(), initBitsFile(), interpret_picture_timing_info(), intra16x16_hor_pred(), intra16x16_plane_pred(), intra16x16_vert_pred(), intrapred_chroma(), malloc_slice(), mm_assign_long_term_frame_idx(), no_mem_exit(), OpenAnnexBFile(), OpenFiles(), OpenRTPFile(), output_one_frame_from_dpb(), predict_nnz(), read_ipred_modes(), read_motion_info_from_NAL_b_slice(), read_new_slice(), read_next_nalu(), readCoeff4x4_CAVLC(), ReadFrameConcatenated(), ReadFrameSeparate(), ReadTIFFIFDEntry(), remove_frame_from_dpb(), reorder_ref_pic_list(), Report(), RestOfSliceHeader(), start_macroblock(), store_picture_in_dpb(), and write_out_picture().

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void free_global_buffers ( ImageParameters * p_Img )

Free allocated memory of frame size related global buffers buffers are defined in global.h, allocated memory is allocated in int init_global_buffers().

Input:: Input Parameters InputParameters *p_Inp, Image Parameters ImageParameters *p_Img

Output:: none

Definition at line 1142 of file ldecod.c.

References free_mem2D(), free_mem2Dint(), free_mem2Dpel(), free_mem3Dpel(), and free_mem4D().

Referenced by init_global_buffers(), and main().

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static void free_img ( ImageParameters * p_Img ) [static]

Free the Image structure.

Input:: Image Parameters ImageParameters *p_Img

Definition at line 370 of file ldecod.c.

Referenced by main().

static void free_slice ( Slice * currSlice ) [static]

Memory frees of the Slice structure and of its dependent data structures.

Input:: Input Parameters InputParameters *p_Inp, ImageParameters *p_Img

Definition at line 1025 of file ldecod.c.

References delete_contexts_MotionInfo(), delete_contexts_TextureInfo(), free_mem3Dint(), free_mem3Dpel(), free_mem4Dint(), FreePartition(), slice::mot_ctx, slice::partArr, and slice::tex_ctx.

Referenced by main().

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void FreePartition	(	DataPartition *	dp,
		int	n
	)

Frees a partition structure (array).

Input:: Partition to be freed, size of partition Array (Number of Partitions)

return: None

Note:: n must be the same as for the corresponding call of AllocPartition

Definition at line 951 of file ldecod.c.

References Bitstream::streamBuffer.

Referenced by free_slice().

static void init ( ImageParameters * p_Img ) [static]

Initilize some arrays.

Parameters:

p_Img

image parameters

Definition at line 479 of file ldecod.c.

Referenced by main().

static void init_conf	(	ImageParameters *	p_Img,
		InputParameters *	p_Inp,
		char *	config_filename
	)			`[static]`

Read parameters from configuration file.

Input:: Name of configuration filename

Output: none

Definition at line 612 of file ldecod.c.

References conf_read_check(), error(), errortext, ET_SIZE, PAR_OF_ANNEXB, and PAR_OF_RTP.

Referenced by Configure().

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void init_frext ( ImageParameters * p_Img )

Initialize FREXT variables.

Parameters:

p_Img

image parameters

Definition at line 539 of file ldecod.c.

References YUV400, YUV420, YUV422, and YUV444.

Referenced by activate_sps().

int init_global_buffers ( ImageParameters * p_Img )

Dynamic memory allocation of frame size related global buffers buffers are defined in global.h, allocated memory must be freed in void free_global_buffers().

Input:: Input Parameters InputParameters *p_Inp, Image Parameters ImageParameters *p_Img

Output:: Number of allocated bytes

Helper array to access macroblock positions. We add 1 to also consider last MB.

Definition at line 1066 of file ldecod.c.

References free_global_buffers(), get_mem2D(), get_mem2Dint(), get_mem2Dpel(), get_mem3Dpel(), get_mem4D(), init_qp_process(), no_mem_exit(), and YUV400.

Referenced by activate_sps().

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void JMDecHelpExit ( void )

print help message and exit

Definition at line 107 of file ldecod.c.

Referenced by Configure().

int main	(	int	argc,
		char **	argv
	)

main function for TML decoder

Definition at line 416 of file ldecod.c.

References alloc_decoder(), Configure(), decode_one_frame(), EOS, ercClose(), flush_dpb(), FmoFinit(), free_dpb(), free_global_buffers(), free_img(), free_slice(), init(), init_old_slice(), init_out_buffer(), initBitsFile(), malloc_slice(), Report(), and uninit_out_buffer().

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static void malloc_slice	(	InputParameters *	p_Inp,
		ImageParameters *	p_Img
	)			`[static]`

Allocates the slice structure along with its dependent data structures.

Input:: Input Parameters InputParameters *p_Inp, ImageParameters *p_Img

you don't know whether we do CABAC hre, hence initialize CABAC anyway

assume data partitioning (worst case) for the following mallocs()

Definition at line 977 of file ldecod.c.

References AllocPartition(), create_contexts_MotionInfo(), create_contexts_TextureInfo(), error(), errortext, ET_SIZE, get_mem3Dint(), get_mem3Dpel(), get_mem4Dint(), MAX_REFERENCE_PICTURES, slice::mot_ctx, slice::partArr, and slice::tex_ctx.

Referenced by main().

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static void Report ( ImageParameters * p_Img ) [static]

Reports the gathered information to appropriate outputs.

Input:: InputParameters *p_Inp, ImageParameters *p_Img, struct snr_par *stat

Output:: None

Definition at line 732 of file ldecod.c.

References error(), errortext, and ET_SIZE.

Referenced by main().

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Defines
#define	LOGFILE "log.dec"
#define	DATADECFILE "dataDec.txt"
#define	TRACEFILE "trace_dec.txt"
#define	OUTSTRING_SIZE 255
Functions
static void	init_conf (ImageParameters p_Img, InputParameters p_Inp, char *config_filename)
static void	Report (ImageParameters *p_Img)
static void	init (ImageParameters *p_Img)
static void	malloc_slice (InputParameters p_Inp, ImageParameters p_Img)
static void	free_slice (Slice *currSlice)
void	error (char *text, int code)
void	JMDecHelpExit (void)
void	Configure (ImageParameters p_Img, InputParameters p_Inp, int ac, char *av[])
static void	alloc_img (ImageParameters **p_Img)
static void	alloc_params (InputParameters **p_Inp)
static void	alloc_decoder (DecoderParams **p_Dec)
static void	free_img (ImageParameters *p_Img)
int	main (int argc, char **argv)
void	init_frext (ImageParameters *p_Img)
static void	conf_read_check (int val, int expected)
DataPartition *	AllocPartition (int n)
void	FreePartition (DataPartition *dp, int n)
int	init_global_buffers (ImageParameters *p_Img)
void	free_global_buffers (ImageParameters *p_Img)
void	report_stats_on_error (void)
Variables
DecoderParams *	p_Dec