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dct.c File Reference

DCT test (c) 2001 Fabrice Bellard Started from sample code by Juan J. More...

#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "libavutil/cpu.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/lfg.h"
#include "libavutil/time.h"
#include "libavcodec/dct.h"
#include "libavcodec/idctdsp.h"
#include "libavcodec/simple_idct.h"
#include "libavcodec/xvididct.h"
#include "libavcodec/aandcttab.h"
#include "libavcodec/faandct.h"
#include "libavcodec/faanidct.h"
#include "libavcodec/dctref.h"
#include "compat/getopt.c"

Go to the source code of this file.

Data Structures

struct  algo


#define AANSCALE_BITS   12
#define NB_ITS   20000
#define NB_ITS_SPEED   50000


static void ff_prores_idct_wrap (int16_t *dst)
static void init_block (int16_t block[64], int test, int is_idct, AVLFG *prng, int vals)
static void permute (int16_t dst[64], const int16_t src[64], enum idct_permutation_type perm_type)
static int dct_error (const struct algo *dct, int test, int is_idct, int speed, const int bits)
static void idct248_ref (uint8_t *dest, int linesize, int16_t *block)
static void idct248_error (const char *name, void(*idct248_put)(uint8_t *dest, int line_size, int16_t *block), int speed)
static void help (void)
int main (int argc, char **argv)


static const struct algo fdct_tab []
static const struct algo idct_tab []
static const struct algo fdct_tab_arch [] = { { 0 } }
static const struct algo idct_tab_arch [] = { { 0 } }
static int16_t block [64]
static int16_t block1 [64]
static uint8_t img_dest [64]
static uint8_t img_dest1 [64]

Detailed Description

DCT test (c) 2001 Fabrice Bellard Started from sample code by Juan J.

Sierralta P.

Definition in file dct.c.

Macro Definition Documentation

#define AANSCALE_BITS   12

Definition at line 108 of file dct.c.

Referenced by dct_error().

#define NB_ITS   20000

Definition at line 110 of file dct.c.

Referenced by dct_error(), and idct248_error().

#define NB_ITS_SPEED   50000

Definition at line 111 of file dct.c.

Referenced by dct_error(), and idct248_error().

Function Documentation

static void ff_prores_idct_wrap ( int16_t *  dst)

Definition at line 69 of file dct.c.

static void init_block ( int16_t  block[64],
int  test,
int  is_idct,
AVLFG prng,
int  vals 

Definition at line 116 of file dct.c.

Referenced by dct_error().

static void permute ( int16_t  dst[64],
const int16_t  src[64],
enum idct_permutation_type  perm_type 

Definition at line 146 of file dct.c.

Referenced by dct_error().

static int dct_error ( const struct algo dct,
int  test,
int  is_idct,
int  speed,
const int  bits 

Definition at line 176 of file dct.c.

Referenced by main().

static void idct248_ref ( uint8_t dest,
int  linesize,
int16_t *  block 

Definition at line 285 of file dct.c.

Referenced by idct248_error().

static void idct248_error ( const char *  name,
void(*)(uint8_t *dest, int line_size, int16_t *block idct248_put,
int  speed 

Definition at line 365 of file dct.c.

Referenced by main().

static void help ( void  )

Definition at line 441 of file dct.c.

Referenced by main().

int main ( int  argc,
char **  argv 

Definition at line 457 of file dct.c.

Variable Documentation

const struct algo fdct_tab[]
Initial value:
= {
{ "REF-DBL", ff_ref_fdct, FF_IDCT_PERM_NONE },
{ "IJG-AAN-INT", ff_fdct_ifast, FF_IDCT_PERM_NONE },
void ff_fdct_ifast(int16_t *data)
Definition: jfdctfst.c:208
void ff_jpeg_fdct_islow_8(int16_t *data)
void ff_ref_fdct(short *block)
Transform 8x8 block of data with a double precision forward DCT This is a reference implementation...
Definition: dctref.c:59

Definition at line 60 of file dct.c.

const struct algo idct_tab[]
Initial value:
= {
{ "REF-DBL", ff_ref_idct, FF_IDCT_PERM_NONE },
{ "SIMPLE-C12", ff_simple_idct_12, FF_IDCT_PERM_NONE, 0, 1 },
static void ff_prores_idct_wrap(int16_t *dst)
Definition: dct.c:69
void ff_simple_idct_10(int16_t *block)
void ff_j_rev_dct(int16_t *data)
void ff_simple_idct_12(int16_t *block)
void ff_ref_idct(short *block)
Transform 8x8 block of data with a double precision inverse DCT This is a reference implementation...
Definition: dctref.c:95
void ff_simple_idct_8(int16_t *block)

Definition at line 82 of file dct.c.

const struct algo fdct_tab_arch[] = { { 0 } }

Definition at line 104 of file dct.c.

const struct algo idct_tab_arch[] = { { 0 } }

Definition at line 105 of file dct.c.

int16_t block[64]

Definition at line 113 of file dct.c.

Referenced by add_yblock(), allocate_buffers(), apply_channel_coupling(), apply_mdct(), av_hmac_final(), av_hmac_init(), backup_duplicate_context(), bink_decode_plane(), binkb_decode_plane(), bit_alloc(), bit_alloc_masking(), check_4block_inter(), check_block(), check_itxfm(), compute_rematrixing_strategy(), copy_replace_length_codes(), count_exponent_bits(), count_frame_bits(), count_mantissa_bits_update_ch(), count_nalus(), dct_error(), dct_get(), dct_quantize_TMPL(), dct_single_coeff_elimination(), decode(), decode_cell(), decode_cell_data(), decode_mb_b(), decode_mb_i(), decode_residual_block(), decode_residual_inter(), decode_slice_alpha(), decode_slice_chroma(), decode_slice_luma(), decode_yuv_frame(), decompress_indices(), dirac_unpack_block_motion_data(), dnxhd_calc_bits_thread(), dnxhd_decode_dct_block(), dnxhd_encode_thread(), dv_decode_video_segment(), dvbsub_parse_object_segment(), dxt5_block_internal(), encode_block(), encode_exponents(), encode_slice_plane(), extract_exponents(), fdct_get(), ff_ac3_apply_rematrixing(), ff_ac3_compute_coupling_strategy(), ff_ac3_encode_close(), ff_ac3_group_exponents(), ff_ac3_quantize_mantissas(), ff_add_pixels_clamped_mmi(), ff_avg_pixels4_8_mmi(), ff_clear_block_mmi(), ff_clear_blocks_mmi(), ff_dct_unquantize_mpeg1_inter_mmi(), ff_dct_unquantize_mpeg1_intra_mmi(), ff_dct_unquantize_mpeg2_intra_mmi(), ff_diff_pixels_mmi(), ff_eac3_output_frame_header(), ff_eac3_set_cpl_states(), ff_fill_block16_mmi(), ff_fill_block8_mmi(), ff_fix_long_p_mvs(), ff_get_pixels_8_mmi(), ff_h263_pred_motion(), ff_h264_chroma422_dc_dequant_idct(), ff_h264_chroma_dc_dequant_idct(), ff_h264_idct8_add(), ff_h264_idct8_add4(), ff_h264_idct8_dc_add(), ff_h264_idct_add(), ff_h264_idct_add16(), ff_h264_idct_add16intra(), ff_h264_idct_add8(), ff_h264_idct_add8_422(), ff_h264_idct_dc_add(), ff_h264_weight_pixels16_8_mmi(), ff_h264_weight_pixels4_8_mmi(), ff_h264_weight_pixels8_8_mmi(), ff_intrax8_common_init(), ff_mss34_dct_put(), ff_put_pixels16_8_mmi(), ff_put_pixels8_8_mmi(), ff_put_pixels8_xy2_8_mmi(), ff_put_signed_pixels_clamped_mmi(), ff_rtjpeg_decode_frame_yuv420(), ff_simple_idct(), ff_simple_idct248_put(), ff_simple_idct_add(), ff_simple_idct_mmi(), ff_simple_idct_put(), ff_subblock_synthesis(), ff_vp56_decode_mbs(), ff_xvid_idct_mmi(), fic_idct_put(), filter(), get(), h263_dct_unquantize_msa(), h263_mv4_search(), hl_decode_mb(), hl_decode_mb_idct_luma(), hl_decode_mb_predict_luma(), idct_put(), interlaced_search(), iterative_me(), m101_decode_frame(), mjpeg_decode_scan(), mjpeg_decode_scan_progressive_ac(), mjpeg_idct_scan_progressive_ac(), nelly_decode_block(), optimize_colors(), output_audio_block(), pixels16_x2(), pixels8_x2(), pixels8_xy2(), pixels8_y2(), pred4x4_horizontal_add(), pred4x4_vertical_add(), pred8x8l_horizontal_add(), pred8x8l_horizontal_filter_add(), pred8x8l_vertical_add(), pred8x8l_vertical_filter_add(), propagate_block_data(), render_slice(), ripemd128_transform(), ripemd160_transform(), ripemd256_transform(), ripemd320_transform(), rtp_open(), scale_coefficients(), seq_decode_op1(), set_blocks(), sha1_transform(), sha256_transform(), sha512_transform(), tgq_idct_put_mb(), tqi_decode_mb(), tqi_idct_put(), vc1_decode_i_blocks_adv(), vc1_inv_trans_4x4_c(), vc1_inv_trans_4x8_c(), vc1_inv_trans_8x4_c(), vc1_inv_trans_8x8_c(), vlc_decode_block(), zmbv_decode_xor_16(), zmbv_decode_xor_32(), and zmbv_decode_xor_8().

int16_t block1[64]
uint8_t img_dest[64]

Definition at line 282 of file dct.c.

Referenced by idct248_error().

uint8_t img_dest1[64]

Definition at line 283 of file dct.c.

Referenced by idct248_error().