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avfilter/af_afftdn: refactor noise sampling

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This commit is contained in:
Paul B Mahol 2022-03-15 14:05:36 +01:00
parent a2eb13c7e5
commit bd5da8ad96
1 changed files with 31 additions and 31 deletions
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62
libavfilter/af_afftdn.c
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@ -35,6 +35,13 @@
#define SFM_FLAGS_SIZE (512)
#define SFM_FLAGS_MASK (SFM_FLAGS_SIZE - 1)
enum SampleNoiseModes {
SAMPLE_NONE,
SAMPLE_START,
SAMPLE_STOP,
NB_SAMPLEMODES
};
enum OutModes {
IN_MODE,
OUT_MODE,
@ -124,8 +131,7 @@ typedef struct AudioFFTDeNoiseContext {
int channels;
int sample_noise;
int sample_noise_start;
int sample_noise_end;
int sample_noise_mode;
float sample_rate;
int buffer_length;
int fft_length;
@ -204,6 +210,13 @@ static const AVOption afftdn_options[] = {
{ "average", "average", 0, AV_OPT_TYPE_CONST, {.i64 = AVERAGE_LINK}, 0, 0, AFR, "link" },
{ "band_multiplier", "set band multiplier",OFFSET(band_multiplier), AV_OPT_TYPE_FLOAT,{.dbl = 1.25}, 0.2,5, AF },
{ "bm", "set band multiplier", OFFSET(band_multiplier), AV_OPT_TYPE_FLOAT,{.dbl = 1.25}, 0.2,5, AF },
{ "sample_noise", "set sample noise mode",OFFSET(sample_noise_mode),AV_OPT_TYPE_INT,{.i64 = SAMPLE_NONE}, 0, NB_SAMPLEMODES-1, AFR, "sample" },
{ "sn", "set sample noise mode",OFFSET(sample_noise_mode),AV_OPT_TYPE_INT,{.i64 = SAMPLE_NONE}, 0, NB_SAMPLEMODES-1, AFR, "sample" },
{ "none", "none", 0, AV_OPT_TYPE_CONST, {.i64 = SAMPLE_NONE}, 0, 0, AFR, "sample" },
{ "start", "start", 0, AV_OPT_TYPE_CONST, {.i64 = SAMPLE_START}, 0, 0, AFR, "sample" },
{ "begin", "start", 0, AV_OPT_TYPE_CONST, {.i64 = SAMPLE_START}, 0, 0, AFR, "sample" },
{ "stop", "stop", 0, AV_OPT_TYPE_CONST, {.i64 = SAMPLE_STOP}, 0, 0, AFR, "sample" },
{ "end", "stop", 0, AV_OPT_TYPE_CONST, {.i64 = SAMPLE_STOP}, 0, 0, AFR, "sample" },
{ NULL }
};
@ -1155,13 +1168,13 @@ static int output_frame(AVFilterLink *inlink, AVFrame *in)
}
}
if (s->sample_noise_start) {
if (s->sample_noise_mode == SAMPLE_START) {
for (int ch = 0; ch < inlink->ch_layout.nb_channels; ch++) {
DeNoiseChannel *dnch = &s->dnch[ch];
init_sample_noise(dnch);
}
s->sample_noise_start = 0;
s->sample_noise_mode = SAMPLE_NONE;
s->sample_noise = 1;
}
@ -1173,7 +1186,7 @@ static int output_frame(AVFilterLink *inlink, AVFrame *in)
}
}
if (s->sample_noise_end) {
if (s->sample_noise_mode == SAMPLE_STOP) {
for (int ch = 0; ch < inlink->ch_layout.nb_channels; ch++) {
DeNoiseChannel *dnch = &s->dnch[ch];
double sample_noise[NB_PROFILE_BANDS];
@ -1183,7 +1196,7 @@ static int output_frame(AVFilterLink *inlink, AVFrame *in)
set_parameters(s, dnch, 1, 1);
}
s->sample_noise = 0;
s->sample_noise_end = 0;
s->sample_noise_mode = SAMPLE_NONE;
}
s->block_count++;
@ -1297,36 +1310,23 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
char *res, int res_len, int flags)
{
AudioFFTDeNoiseContext *s = ctx->priv;
int need_reset = 0;
int ret = 0;
if (!strcmp(cmd, "sample_noise") ||
!strcmp(cmd, "sn")) {
if (!strcmp(args, "start")) {
s->sample_noise_start = 1;
s->sample_noise_end = 0;
} else if (!strcmp(args, "end") ||
!strcmp(args, "stop")) {
s->sample_noise_start = 0;
s->sample_noise_end = 1;
}
} else {
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
need_reset = 1;
}
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
if (need_reset) {
for (int ch = 0; ch < s->channels; ch++) {
DeNoiseChannel *dnch = &s->dnch[ch];
if (!strcmp(cmd, "sample_noise") || !strcmp(cmd, "sn"))
return 0;
dnch->noise_reduction = s->noise_reduction;
dnch->noise_floor = s->noise_floor;
dnch->residual_floor = s->residual_floor;
for (int ch = 0; ch < s->channels; ch++) {
DeNoiseChannel *dnch = &s->dnch[ch];
set_parameters(s, dnch, 1, 1);
}
dnch->noise_reduction = s->noise_reduction;
dnch->noise_floor = s->noise_floor;
dnch->residual_floor = s->residual_floor;
set_parameters(s, dnch, 1, 1);
}
return 0;