tx.c File Reference

#include "avassert.h"
#include "intmath.h"
#include "cpu.h"
#include "mem.h"
#include "qsort.h"
#include "bprint.h"
#include "tx_priv.h"

Go to the source code of this file.

Data Structures
struct	FFTXLenDecomp
struct	TXCodeletMatch

Macros
#define	TYPE_IS(type, x)

Functions
static av_always_inline int	mulinv (int n, int m)
int	ff_tx_gen_pfa_input_map (AVTXContext *s, FFTXCodeletOptions *opts, int d1, int d2)
int	ff_tx_gen_compound_mapping (AVTXContext *s, FFTXCodeletOptions *opts, int inv, int n, int m)
static int	split_radix_permutation (int i, int len, int inv)
int	ff_tx_gen_ptwo_revtab (AVTXContext *s, FFTXCodeletOptions *opts)
int	ff_tx_gen_inplace_map (AVTXContext *s, int len)
static void	parity_revtab_generator (int *revtab, int n, int inv, int offset, int is_dual, int dual_high, int len, int basis, int dual_stride, int inv_lookup)
int	ff_tx_gen_split_radix_parity_revtab (AVTXContext *s, int len, int inv, FFTXCodeletOptions *opts, int basis, int dual_stride)
static void	reset_ctx (AVTXContext *s, int free_sub)
void	ff_tx_clear_ctx (AVTXContext *s)
av_cold void	av_tx_uninit (AVTXContext **ctx)
	Frees a context and sets *ctx to NULL, does nothing when *ctx == NULL.
static av_cold int	ff_tx_null_init (AVTXContext *s, const FFTXCodelet *cd, uint64_t flags, FFTXCodeletOptions *opts, int len, int inv, const void *scale)
static void	ff_tx_null (AVTXContext *s, void *_out, void *_in, ptrdiff_t stride)
static int	get_codelet_prio (const FFTXCodelet *cd, int cpu_flags, int len)
static int	cmp_decomp (FFTXLenDecomp *a, FFTXLenDecomp *b)
int	ff_tx_decompose_length (int dst[TX_MAX_DECOMPOSITIONS], enum AVTXType type, int len, int inv)
int	ff_tx_gen_default_map (AVTXContext *s, FFTXCodeletOptions *opts)
static void	print_flags (AVBPrint *bp, uint64_t f)
static void	print_type (AVBPrint *bp, enum AVTXType type)
static void	print_cd_info (const FFTXCodelet *cd, int prio, int len, int print_prio, int log_level)
static void	print_tx_structure (AVTXContext *s, int depth)
static int	cmp_matches (TXCodeletMatch *a, TXCodeletMatch *b)
static int	check_cd_factors (const FFTXCodelet *cd, int len)
av_cold int	ff_tx_init_subtx (AVTXContext *s, enum AVTXType type, uint64_t flags, FFTXCodeletOptions *opts, int len, int inv, const void *scale)
av_cold int	av_tx_init (AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type, int inv, int len, const void *scale, uint64_t flags)
	Initialize a transform context with the given configuration (i)MDCTs with an odd length are currently not supported.

Variables
static const FFTXCodelet	ff_tx_null_def
static const FFTXCodelet *const	ff_tx_null_list []
static const FFTXCodelet *const *const	codelet_list []
static const int	codelet_list_num = FF_ARRAY_ELEMS(codelet_list)
static const int	cpu_slow_mask
static const int	cpu_slow_penalties [][2]

Macro Definition Documentation

TYPE_IS

#define TYPE_IS	(		type,
			x )

Value:

    (((x) == AV_TX_FLOAT_ ## type)  || \
     ((x) == AV_TX_DOUBLE_ ## type) || \
     ((x) == AV_TX_INT32_ ## type))

Definition at line 28 of file tx.c.

Referenced by av_tx_init(), and ff_tx_null_init().

Function Documentation

mulinv()

static av_always_inline int mulinv ( int n, int m )

static

Definition at line 34 of file tx.c.

Referenced by ff_tx_gen_compound_mapping().

ff_tx_gen_pfa_input_map()

int ff_tx_gen_pfa_input_map	(	AVTXContext *	s,
		FFTXCodeletOptions *	opts,
		int	d1,
		int	d2 )

Definition at line 44 of file tx.c.

Referenced by factor_init(), and ff_tx_fft_factor_init().

ff_tx_gen_compound_mapping()

int ff_tx_gen_compound_mapping	(	AVTXContext *	s,
		FFTXCodeletOptions *	opts,
		int	inv,
		int	n,
		int	m )

Definition at line 75 of file tx.c.

Referenced by ff_tx_fft_pfa_init(), ff_tx_mdct_pfa_init(), and fft_pfa_init().

split_radix_permutation()

static int split_radix_permutation ( int i, int len, int inv )

inlinestatic

Definition at line 125 of file tx.c.

Referenced by ff_tx_gen_ptwo_revtab(), parity_revtab_generator(), and split_radix_permutation().

ff_tx_gen_ptwo_revtab()

int ff_tx_gen_ptwo_revtab	(	AVTXContext *	s,
		FFTXCodeletOptions *	opts )

Definition at line 136 of file tx.c.

Referenced by ff_tx_fft_sr_codelet_init(), and neon_init().

ff_tx_gen_inplace_map()

int ff_tx_gen_inplace_map	(	AVTXContext *	s,
		int	len )

Definition at line 156 of file tx.c.

Referenced by ff_tx_fft_init().

parity_revtab_generator()

static void parity_revtab_generator ( int * revtab, int n, int inv, int offset, int is_dual, int dual_high, int len, int basis, int dual_stride, int inv_lookup )

static

Definition at line 198 of file tx.c.

Referenced by ff_tx_gen_split_radix_parity_revtab(), and parity_revtab_generator().

ff_tx_gen_split_radix_parity_revtab()

int ff_tx_gen_split_radix_parity_revtab	(	AVTXContext *	s,
		int	len,
		int	inv,
		FFTXCodeletOptions *	opts,
		int	basis,
		int	dual_stride )

Definition at line 241 of file tx.c.

Referenced by neon_init().

reset_ctx()

static void reset_ctx ( AVTXContext * s, int free_sub )

static

Definition at line 264 of file tx.c.

Referenced by av_tx_uninit(), ff_tx_clear_ctx(), ff_tx_init_subtx(), and reset_ctx().

ff_tx_clear_ctx()

void ff_tx_clear_ctx

(

AVTXContext *

s

)

Definition at line 290 of file tx.c.

Referenced by ff_tx_fft_pfa_init().

av_tx_uninit()

av_cold void av_tx_uninit

(

AVTXContext **

ctx

)

Frees a context and sets *ctx to NULL, does nothing when *ctx == NULL.

Definition at line 295 of file tx.c.

Referenced by aac_encode_end(), ac3_decode_end(), atrac1_decode_end(), atrac3_decode_close(), atrac3p_decode_close(), atrac9_decode_close(), checkasm_check_synth_filter(), checkasm_uninit_tx(), common_uninit(), common_uninit(), config_input(), config_output(), config_output(), config_output(), config_output(), cook_decode_close(), decode_close(), decode_close(), decode_end(), decode_end(), decode_end(), dolby_e_close(), encode_close(), encode_end(), ff_aac_sbr_ctx_close(), ff_ac3_encode_close(), ff_celt_free(), ff_dca_core_close(), ff_dca_lbr_close(), ff_opus_psy_end(), ff_opus_psy_init(), ff_twinvq_decode_close(), ff_wma_end(), fir_to_phase(), imc_decode_close(), init_sample_rate(), load_data(), on2avc_decode_close(), opus_encode_end(), qdm2_decode_close(), qdmc_decode_close(), siren_close(), stream_component_close(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit(), uninit_segment(), video_audio_display(), vorbis_encode_close(), vorbis_free(), wmavoice_decode_end(), and yae_release_buffers().

ff_tx_null_init()

static av_cold int ff_tx_null_init ( AVTXContext * s, const FFTXCodelet * cd, uint64_t flags, FFTXCodeletOptions * opts, int len, int inv, const void * scale )

static

Definition at line 304 of file tx.c.

ff_tx_null()

static void ff_tx_null ( AVTXContext * s, void * _out, void * _in, ptrdiff_t stride )

static

Definition at line 315 of file tx.c.

get_codelet_prio()

static int get_codelet_prio ( const FFTXCodelet * cd, int cpu_flags, int len )

static

Definition at line 367 of file tx.c.

Referenced by ff_tx_decompose_length(), and ff_tx_init_subtx().

cmp_decomp()

static int cmp_decomp ( FFTXLenDecomp * a, FFTXLenDecomp * b )

static

Definition at line 407 of file tx.c.

Referenced by ff_tx_decompose_length().

ff_tx_decompose_length()

int ff_tx_decompose_length	(	int	dst[TX_MAX_DECOMPOSITIONS],
		enum AVTXType	type,
		int	len,
		int	inv )

Definition at line 412 of file tx.c.

Referenced by ff_tx_fft_pfa_init().

ff_tx_gen_default_map()

int ff_tx_gen_default_map	(	AVTXContext *	s,
		FFTXCodeletOptions *	opts )

Definition at line 525 of file tx.c.

Referenced by factor_init(), and ff_tx_fft_factor_init().

print_flags()

static void print_flags ( AVBPrint * bp, uint64_t f )

static

Definition at line 545 of file tx.c.

Referenced by ff_tx_init_subtx(), and print_cd_info().

print_type()

static void print_type ( AVBPrint * bp, enum AVTXType type )

static

Definition at line 575 of file tx.c.

Referenced by ff_tx_init_subtx(), and print_cd_info().

print_cd_info()

static void print_cd_info ( const FFTXCodelet * cd, int prio, int len, int print_prio, int log_level )

static

Definition at line 597 of file tx.c.

Referenced by ff_tx_init_subtx(), and print_tx_structure().

print_tx_structure()

static void print_tx_structure ( AVTXContext * s, int depth )

static

Definition at line 651 of file tx.c.

Referenced by av_tx_init(), and print_tx_structure().

cmp_matches()

static int cmp_matches ( TXCodeletMatch * a, TXCodeletMatch * b )

static

Definition at line 670 of file tx.c.

Referenced by ff_tx_init_subtx().

check_cd_factors()

static int check_cd_factors ( const FFTXCodelet * cd, int len )

inlinestatic

Definition at line 676 of file tx.c.

Referenced by ff_tx_init_subtx().

ff_tx_init_subtx()

av_cold int ff_tx_init_subtx	(	AVTXContext *	s,
		enum AVTXType	type,
		uint64_t	flags,
		FFTXCodeletOptions *	opts,
		int	len,
		int	inv,
		const void *	scale )

Definition at line 712 of file tx.c.

Referenced by av_tx_init(), ff_tx_dct_init(), ff_tx_fft_init(), ff_tx_fft_pfa_init(), ff_tx_mdct_init(), ff_tx_mdct_inv_full_init(), ff_tx_mdct_pfa_init(), ff_tx_rdft_init(), fft_pfa_init(), and m_inv_init().

av_tx_init()

av_cold int av_tx_init	(	AVTXContext **	ctx,
		av_tx_fn *	tx,
		enum AVTXType	type,
		int	inv,
		int	len,
		const void *	scale,
		uint64_t	flags )

Initialize a transform context with the given configuration (i)MDCTs with an odd length are currently not supported.

Parameters

ctx	the context to allocate, will be NULL on error
tx	pointer to the transform function pointer to set
type	type the type of transform
inv	whether to do an inverse or a forward transform
len	the size of the transform in samples
scale	pointer to the value to scale the output if supported by type
flags	a bitmask of AVTXFlags or 0

Returns

0 on success, negative error code on failure

Definition at line 903 of file tx.c.

Referenced by ac3_decode_init(), ac3_fixed_mdct_init(), ac3_float_mdct_init(), atrac1_decode_init(), atrac3_decode_init(), atrac3p_decode_init(), atrac9_decode_init(), checkasm_check_synth_filter(), config_eq_output(), config_input(), config_input(), config_input(), config_input(), config_input(), config_input(), config_input(), config_input(), config_input(), config_input(), config_output(), config_output(), config_output(), config_output(), config_output(), config_output(), config_output(), config_output(), config_output(), config_output(), config_props(), convert_coeffs(), de_tx_init(), decode_init(), decode_init(), decode_init(), decode_init(), dolby_e_init(), dsp_init(), dsp_init(), encode_init(), encode_init(), encode_init(), equ_init(), ff_aac_sbr_ctx_alloc_init(), ff_celt_init(), ff_dca_core_init(), ff_opus_psy_init(), fir_to_phase(), imc_decode_init(), init_cook_mlt(), init_dsp(), init_mdct_win(), init_sample_rate(), init_segment(), load_data(), on2avc_decode_init(), opus_encode_init(), qdm2_decode_init(), qdmc_decode_init(), siren_init(), video_audio_display(), vorbis_parse_id_hdr(), wma_decode_init(), wmavoice_decode_init(), and yae_reset().

Variable Documentation

ff_tx_null_def

const FFTXCodelet ff_tx_null_def

static

Initial value:

= {
    .name       = NULL_IF_CONFIG_SMALL("null"),
    .function   = ff_tx_null,
    .type       = TX_TYPE_ANY,
    .flags      = AV_TX_UNALIGNED | FF_TX_ALIGNED |
                  FF_TX_OUT_OF_PLACE | AV_TX_INPLACE,
    .factors[0] = TX_FACTOR_ANY,
    .min_len    = 1,
    .max_len    = 1,
    .init       = ff_tx_null_init,
    .cpu_flags  = FF_TX_CPU_FLAGS_ALL,
    .prio       = FF_TX_PRIO_MAX,
}

Definition at line 320 of file tx.c.

ff_tx_null_list

const FFTXCodelet* const ff_tx_null_list[]

static

Initial value:

= {
    &ff_tx_null_def,
    NULL,
}

Definition at line 334 of file tx.c.

codelet_list

const FFTXCodelet* const* const codelet_list[]

static

Initial value:

= {
    ff_tx_codelet_list_float_c,
    ff_tx_codelet_list_double_c,
    ff_tx_codelet_list_int32_c,
    ff_tx_null_list,
 
 
 
 
 
 
}

Definition at line 340 of file tx.c.

Referenced by ff_tx_decompose_length(), and ff_tx_init_subtx().

codelet_list_num

const int codelet_list_num = FF_ARRAY_ELEMS(codelet_list)

static

Definition at line 352 of file tx.c.

Referenced by ff_tx_decompose_length(), and ff_tx_init_subtx().

cpu_slow_mask

const int cpu_slow_mask

static

Initial value:

= AV_CPU_FLAG_SSE2SLOW | AV_CPU_FLAG_SSE3SLOW  |
                                 AV_CPU_FLAG_ATOM     | AV_CPU_FLAG_SSSE3SLOW |
                                 AV_CPU_FLAG_AVXSLOW  | AV_CPU_FLAG_SLOW_GATHER

Definition at line 354 of file tx.c.

Referenced by ff_tx_decompose_length(), and ff_tx_init_subtx().

cpu_slow_penalties

const int cpu_slow_penalties[][2]

static

Initial value:

= {
    { AV_CPU_FLAG_SSE2SLOW,    1 + 64  },
    { AV_CPU_FLAG_SSE3SLOW,    1 + 64  },
    { AV_CPU_FLAG_SSSE3SLOW,   1 + 64  },
    { AV_CPU_FLAG_ATOM,        1 + 128 },
    { AV_CPU_FLAG_AVXSLOW,     1 + 128 },
    { AV_CPU_FLAG_SLOW_GATHER, 1 + 32  },
}

Definition at line 358 of file tx.c.

Referenced by get_codelet_prio().