af_earwax.c File Reference

Stereo Widening Effect. More...

#include "libavutil/channel_layout.h"
#include "avfilter.h"
#include "audio.h"
#include "formats.h"

Go to the source code of this file.

Data Structures
struct	EarwaxContext

Macros
#define	NUMTAPS   64

Functions
static int	query_formats (AVFilterContext *ctx)
static int16_t *	scalarproduct (const int16_t *in, const int16_t *endin, int16_t *out)
static int	filter_frame (AVFilterLink *inlink, AVFrame *insamples)

Variables
static const int8_t	filt [NUMTAPS]
static const AVFilterPad	earwax_inputs []
static const AVFilterPad	earwax_outputs []
AVFilter	ff_af_earwax

Detailed Description

Stereo Widening Effect.

Adds audio cues to move stereo image in front of the listener. Adapted from the libsox earwax effect.

Definition in file af_earwax.c.

Macro Definition Documentation

#define NUMTAPS   64

Definition at line 37 of file af_earwax.c.

Referenced by filter_frame(), and scalarproduct().

Function Documentation

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 78 of file af_earwax.c.

static int16_t* scalarproduct ( const int16_t *  in, const int16_t *  endin, int16_t *  out  )

inlinestatic

Definition at line 97 of file af_earwax.c.

Referenced by filter_frame().

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  insamples  )

static

Definition at line 114 of file af_earwax.c.

Variable Documentation

const int8_t filt[NUMTAPS]

static

Definition at line 39 of file af_earwax.c.

Referenced by apply_tns(), avfilter_insert_filter(), common_hv_2ht_2vt_4x4_msa(), common_hv_2ht_2vt_4x8_msa(), common_hv_2ht_2vt_8x4_msa(), common_hv_2ht_2vt_8x8mult_msa(), common_hv_2ht_2vt_and_aver_dst_4x4_msa(), common_hv_2ht_2vt_and_aver_dst_4x8_msa(), common_hv_2ht_2vt_and_aver_dst_8x4_msa(), common_hv_2ht_2vt_and_aver_dst_8x8mult_msa(), common_hv_8ht_8vt_4w_msa(), common_hv_8ht_8vt_8w_msa(), common_hv_8ht_8vt_and_aver_dst_4w_msa(), common_hv_8ht_8vt_and_aver_dst_8w_msa(), common_hz_2t_4x4_msa(), common_hz_2t_4x8_msa(), common_hz_2t_8x4_msa(), common_hz_2t_8x8mult_msa(), common_hz_2t_and_aver_dst_4x4_msa(), common_hz_2t_and_aver_dst_4x8_msa(), common_hz_2t_and_aver_dst_8x4_msa(), common_hz_2t_and_aver_dst_8x8mult_msa(), common_hz_4t_12w_msa(), common_hz_4t_16w_msa(), common_hz_4t_24w_msa(), common_hz_4t_32w_msa(), common_hz_4t_4x16_msa(), common_hz_4t_4x2_msa(), common_hz_4t_4x4_msa(), common_hz_4t_4x8_msa(), common_hz_4t_6w_msa(), common_hz_4t_8x2mult_msa(), common_hz_4t_8x4mult_msa(), common_hz_6t_4x4_msa(), common_hz_6t_4x8_msa(), common_hz_8t_12w_msa(), common_hz_8t_16w_msa(), common_hz_8t_24w_msa(), common_hz_8t_32w_msa(), common_hz_8t_48w_msa(), common_hz_8t_4x16_msa(), common_hz_8t_4x4_msa(), common_hz_8t_4x8_msa(), common_hz_8t_64w_msa(), common_hz_8t_8x4_msa(), common_hz_8t_8x8mult_msa(), common_hz_8t_and_aver_dst_16w_msa(), common_hz_8t_and_aver_dst_32w_msa(), common_hz_8t_and_aver_dst_4x4_msa(), common_hz_8t_and_aver_dst_4x8_msa(), common_hz_8t_and_aver_dst_64w_msa(), common_hz_8t_and_aver_dst_8w_msa(), common_vt_2t_4x4_msa(), common_vt_2t_4x8_msa(), common_vt_2t_8x4_msa(), common_vt_2t_8x8mult_msa(), common_vt_2t_and_aver_dst_4x4_msa(), common_vt_2t_and_aver_dst_4x8_msa(), common_vt_2t_and_aver_dst_8x4_msa(), common_vt_2t_and_aver_dst_8x8mult_msa(), common_vt_4t_12w_msa(), common_vt_4t_16w_msa(), common_vt_4t_24w_msa(), common_vt_4t_32w_mult_msa(), common_vt_4t_4x2_msa(), common_vt_4t_4x4multiple_msa(), common_vt_4t_6w_msa(), common_vt_4t_8x2_msa(), common_vt_4t_8x4mult_msa(), common_vt_4t_8x6_msa(), common_vt_8t_12w_msa(), common_vt_8t_16w_msa(), common_vt_8t_16w_mult_msa(), common_vt_8t_4w_msa(), common_vt_8t_8w_msa(), common_vt_8t_and_aver_dst_16w_mult_msa(), common_vt_8t_and_aver_dst_4w_msa(), common_vt_8t_and_aver_dst_8w_msa(), create_filter(), decode_tns(), ff_aac_apply_tns(), ff_aac_encode_tns_info(), ff_avg_bilin_16h_msa(), ff_avg_bilin_16hv_msa(), ff_avg_bilin_16v_msa(), ff_avg_bilin_32h_msa(), ff_avg_bilin_32v_msa(), ff_avg_bilin_64h_msa(), ff_avg_bilin_64v_msa(), ff_put_bilin_16h_msa(), ff_put_bilin_16hv_msa(), ff_put_bilin_16v_msa(), ff_put_bilin_32h_msa(), ff_put_bilin_32v_msa(), ff_put_bilin_64h_msa(), ff_put_bilin_64v_msa(), ff_put_vp8_bilinear16_h_msa(), ff_put_vp8_bilinear16_hv_msa(), ff_put_vp8_bilinear16_v_msa(), ff_put_vp8_epel16_h4_msa(), ff_put_vp8_epel16_h6_msa(), ff_put_vp8_epel16_v4_msa(), ff_put_vp8_epel16_v6_msa(), ff_put_vp8_epel4_h4v4_msa(), ff_put_vp8_epel4_h4v6_msa(), ff_put_vp8_epel4_h6v4_msa(), ff_put_vp8_epel4_h6v6_msa(), ff_put_vp8_epel4_v4_msa(), ff_put_vp8_epel4_v6_msa(), ff_put_vp8_epel8_h4_msa(), ff_put_vp8_epel8_h4v4_msa(), ff_put_vp8_epel8_h4v6_msa(), ff_put_vp8_epel8_h6_msa(), ff_put_vp8_epel8_h6v4_msa(), ff_put_vp8_epel8_h6v6_msa(), ff_put_vp8_epel8_v4_msa(), ff_put_vp8_epel8_v6_msa(), filter_brng(), filter_tout(), filter_vrep(), graph_check_validity(), graph_config_links(), and scalarproduct().

const AVFilterPad earwax_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_AUDIO,
        .filter_frame = filter_frame,
    },
    { NULL }
}

Definition at line 150 of file af_earwax.c.

const AVFilterPad earwax_outputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_AUDIO,
    },
    { NULL }
}

Definition at line 159 of file af_earwax.c.

AVFilter ff_af_earwax

Initial value:

= {
    .name           = "earwax",
    .description    = NULL_IF_CONFIG_SMALL("Widen the stereo image."),
    .query_formats  = query_formats,
    .priv_size      = sizeof(EarwaxContext),
    .inputs         = earwax_inputs,
    .outputs        = earwax_outputs,
}

Definition at line 167 of file af_earwax.c.