int ir_len;
int air_len;
- int nb_inputs;
+ int nb_hrir_inputs;
int nb_irs;
int size;
int hrir_fmt;
- int *delay[2];
float *data_ir[2];
float *temp_src[2];
FFTComplex *temp_fft[2];
FFTContext *fft[2], *ifft[2];
FFTComplex *data_hrtf[2];
- AVFloatDSPContext *fdsp;
- struct headphone_inputs {
- AVFrame *frame;
+ float (*scalarproduct_float)(const float *v1, const float *v2, int len);
+ struct hrir_inputs {
int ir_len;
- int delay_l;
- int delay_r;
int eof;
- } *in;
+ } hrir_in[64];
uint64_t mapping[64];
} HeadphoneContext;
char *arg, *tokenizer, *p;
uint64_t used_channels = 0;
- s->lfe_channel = -1;
- s->nb_inputs = 1;
-
p = s->map;
while ((arg = av_strtok(p, "|", &tokenizer))) {
uint64_t out_channel;
continue;
}
used_channels |= out_channel;
- if (out_channel == AV_CH_LOW_FREQUENCY)
- s->lfe_channel = s->nb_irs;
s->mapping[s->nb_irs] = out_channel;
s->nb_irs++;
}
if (s->hrir_fmt == HRIR_MULTI)
- s->nb_inputs = 2;
+ s->nb_hrir_inputs = 1;
else
- s->nb_inputs = s->nb_irs + 1;
+ s->nb_hrir_inputs = s->nb_irs;
}
typedef struct ThreadData {
AVFrame *in, *out;
int *write;
- int **delay;
float **ir;
int *n_clippings;
float **ringbuffer;
AVFrame *in = td->in, *out = td->out;
int offset = jobnr;
int *write = &td->write[jobnr];
- const int *const delay = td->delay[jobnr];
const float *const ir = td->ir[jobnr];
int *n_clippings = &td->n_clippings[jobnr];
float *ringbuffer = td->ringbuffer[jobnr];
}
for (i = 0; i < in->nb_samples; i++) {
- const float *temp_ir = ir;
+ const float *cur_ir = ir;
*dst = 0;
for (l = 0; l < in_channels; l++) {
*(buffer[l] + wr) = src[l];
}
- for (l = 0; l < in_channels; l++) {
+ for (l = 0; l < in_channels; cur_ir += air_len, l++) {
const float *const bptr = buffer[l];
if (l == s->lfe_channel) {
*dst += *(buffer[s->lfe_channel] + wr) * s->gain_lfe;
- temp_ir += air_len;
continue;
}
- read = (wr - *(delay + l) - (ir_len - 1) + buffer_length) & modulo;
+ read = (wr - (ir_len - 1)) & modulo;
if (read + ir_len < buffer_length) {
memcpy(temp_src, bptr + read, ir_len * sizeof(*temp_src));
memcpy(temp_src + len, bptr, (air_len - len) * sizeof(*temp_src));
}
- dst[0] += s->fdsp->scalarproduct_float(temp_ir, temp_src, FFALIGN(ir_len, 32));
- temp_ir += air_len;
+ dst[0] += s->scalarproduct_float(cur_ir, temp_src, FFALIGN(ir_len, 32));
}
if (fabsf(dst[0]) > 1)
for (j = 0; j < in->nb_samples; j++) {
dst[2 * j] += fft_acc[j].re * fft_scale;
+ if (fabsf(dst[2 * j]) > 1)
+ n_clippings[0]++;
}
for (j = 0; j < ir_len - 1; j++) {
*(ringbuffer + write_pos) += fft_acc[in->nb_samples + j].re * fft_scale;
}
- for (i = 0; i < out->nb_samples; i++) {
- if (fabsf(dst[0]) > 1) {
- n_clippings[0]++;
- }
-
- dst += 2;
- }
-
*write = wr;
return 0;
av_log(ctx, AV_LOG_ERROR, "Too big length of IRs: %d > %d.\n", ir_len, max_ir_len);
return AVERROR(EINVAL);
}
- s->in[input_number].ir_len = ir_len;
+ s->hrir_in[input_number].ir_len = ir_len;
s->ir_len = FFMAX(ir_len, s->ir_len);
return 0;
out->pts = in->pts;
td.in = in; td.out = out; td.write = s->write;
- td.delay = s->delay; td.ir = s->data_ir; td.n_clippings = n_clippings;
+ td.ir = s->data_ir; td.n_clippings = n_clippings;
td.ringbuffer = s->ringbuffer; td.temp_src = s->temp_src;
td.temp_fft = s->temp_fft;
td.temp_afft = s->temp_afft;
{
struct HeadphoneContext *s = ctx->priv;
const int ir_len = s->ir_len;
- int nb_irs = s->nb_irs;
int nb_input_channels = ctx->inputs[0]->channels;
float gain_lin = expf((s->gain - 3 * nb_input_channels) / 20 * M_LN10);
- FFTComplex *data_hrtf_l = NULL;
- FFTComplex *data_hrtf_r = NULL;
- FFTComplex *fft_in_l = NULL;
- FFTComplex *fft_in_r = NULL;
- float *data_ir_l = NULL;
- float *data_ir_r = NULL;
- int offset = 0, ret = 0;
+ AVFrame *frame;
+ int ret = 0;
int n_fft;
int i, j, k;
s->n_fft = n_fft = 1 << (32 - ff_clz(ir_len + s->size));
if (s->type == FREQUENCY_DOMAIN) {
- fft_in_l = av_calloc(n_fft, sizeof(*fft_in_l));
- fft_in_r = av_calloc(n_fft, sizeof(*fft_in_r));
- if (!fft_in_l || !fft_in_r) {
- ret = AVERROR(ENOMEM);
- goto fail;
- }
-
s->fft[0] = av_fft_init(av_log2(s->n_fft), 0);
s->fft[1] = av_fft_init(av_log2(s->n_fft), 0);
s->ifft[0] = av_fft_init(av_log2(s->n_fft), 1);
}
}
- s->data_ir[0] = av_calloc(s->air_len, sizeof(float) * s->nb_irs);
- s->data_ir[1] = av_calloc(s->air_len, sizeof(float) * s->nb_irs);
- s->delay[0] = av_calloc(s->nb_irs, sizeof(float));
- s->delay[1] = av_calloc(s->nb_irs, sizeof(float));
-
if (s->type == TIME_DOMAIN) {
s->ringbuffer[0] = av_calloc(s->buffer_length, sizeof(float) * nb_input_channels);
s->ringbuffer[1] = av_calloc(s->buffer_length, sizeof(float) * nb_input_channels);
}
}
- if (!s->data_ir[0] || !s->data_ir[1] ||
- !s->ringbuffer[0] || !s->ringbuffer[1]) {
+ if (!s->ringbuffer[0] || !s->ringbuffer[1]) {
ret = AVERROR(ENOMEM);
goto fail;
}
s->temp_src[0] = av_calloc(s->air_len, sizeof(float));
s->temp_src[1] = av_calloc(s->air_len, sizeof(float));
- data_ir_l = av_calloc(nb_irs * s->air_len, sizeof(*data_ir_l));
- data_ir_r = av_calloc(nb_irs * s->air_len, sizeof(*data_ir_r));
- if (!data_ir_r || !data_ir_l || !s->temp_src[0] || !s->temp_src[1]) {
+ s->data_ir[0] = av_calloc(nb_input_channels * s->air_len, sizeof(*s->data_ir[0]));
+ s->data_ir[1] = av_calloc(nb_input_channels * s->air_len, sizeof(*s->data_ir[1]));
+ if (!s->data_ir[0] || !s->data_ir[1] || !s->temp_src[0] || !s->temp_src[1]) {
ret = AVERROR(ENOMEM);
goto fail;
}
} else {
- data_hrtf_l = av_calloc(n_fft, sizeof(*data_hrtf_l) * nb_irs);
- data_hrtf_r = av_calloc(n_fft, sizeof(*data_hrtf_r) * nb_irs);
- if (!data_hrtf_r || !data_hrtf_l) {
+ s->data_hrtf[0] = av_calloc(n_fft, sizeof(*s->data_hrtf[0]) * nb_input_channels);
+ s->data_hrtf[1] = av_calloc(n_fft, sizeof(*s->data_hrtf[1]) * nb_input_channels);
+ if (!s->data_hrtf[0] || !s->data_hrtf[1]) {
ret = AVERROR(ENOMEM);
goto fail;
}
}
- for (i = 0; i < s->nb_inputs - 1; i++) {
- int len = s->in[i + 1].ir_len;
- int delay_l = s->in[i + 1].delay_l;
- int delay_r = s->in[i + 1].delay_r;
+ for (i = 0; i < s->nb_hrir_inputs; av_frame_free(&frame), i++) {
+ int len = s->hrir_in[i].ir_len;
float *ptr;
- ret = ff_inlink_consume_samples(ctx->inputs[i + 1], len, len, &s->in[i + 1].frame);
+ ret = ff_inlink_consume_samples(ctx->inputs[i + 1], len, len, &frame);
if (ret < 0)
goto fail;
- ptr = (float *)s->in[i + 1].frame->extended_data[0];
+ ptr = (float *)frame->extended_data[0];
if (s->hrir_fmt == HRIR_STEREO) {
- int idx = -1;
-
- for (j = 0; j < inlink->channels; j++) {
- if ((av_channel_layout_extract_channel(inlink->channel_layout, j)) == s->mapping[i]) {
- idx = i;
- break;
- }
- }
-
- if (idx == -1)
+ int idx = av_get_channel_layout_channel_index(inlink->channel_layout,
+ s->mapping[i]);
+ if (idx < 0)
continue;
if (s->type == TIME_DOMAIN) {
- offset = idx * s->air_len;
+ float *data_ir_l = s->data_ir[0] + idx * s->air_len;
+ float *data_ir_r = s->data_ir[1] + idx * s->air_len;
+
for (j = 0; j < len; j++) {
- data_ir_l[offset + j] = ptr[len * 2 - j * 2 - 2] * gain_lin;
- data_ir_r[offset + j] = ptr[len * 2 - j * 2 - 1] * gain_lin;
+ data_ir_l[j] = ptr[len * 2 - j * 2 - 2] * gain_lin;
+ data_ir_r[j] = ptr[len * 2 - j * 2 - 1] * gain_lin;
}
} else {
- memset(fft_in_l, 0, n_fft * sizeof(*fft_in_l));
- memset(fft_in_r, 0, n_fft * sizeof(*fft_in_r));
+ FFTComplex *fft_in_l = s->data_hrtf[0] + idx * n_fft;
+ FFTComplex *fft_in_r = s->data_hrtf[1] + idx * n_fft;
- offset = idx * n_fft;
for (j = 0; j < len; j++) {
- fft_in_l[delay_l + j].re = ptr[j * 2 ] * gain_lin;
- fft_in_r[delay_r + j].re = ptr[j * 2 + 1] * gain_lin;
+ fft_in_l[j].re = ptr[j * 2 ] * gain_lin;
+ fft_in_r[j].re = ptr[j * 2 + 1] * gain_lin;
}
av_fft_permute(s->fft[0], fft_in_l);
av_fft_calc(s->fft[0], fft_in_l);
- memcpy(data_hrtf_l + offset, fft_in_l, n_fft * sizeof(*fft_in_l));
av_fft_permute(s->fft[0], fft_in_r);
av_fft_calc(s->fft[0], fft_in_r);
- memcpy(data_hrtf_r + offset, fft_in_r, n_fft * sizeof(*fft_in_r));
}
} else {
int I, N = ctx->inputs[1]->channels;
for (k = 0; k < N / 2; k++) {
- int idx = -1;
-
- for (j = 0; j < inlink->channels; j++) {
- if ((av_channel_layout_extract_channel(inlink->channel_layout, j)) == s->mapping[k]) {
- idx = k;
- break;
- }
- }
- if (idx == -1)
+ int idx = av_get_channel_layout_channel_index(inlink->channel_layout,
+ s->mapping[k]);
+ if (idx < 0)
continue;
- I = idx * 2;
+ I = k * 2;
if (s->type == TIME_DOMAIN) {
- offset = idx * s->air_len;
+ float *data_ir_l = s->data_ir[0] + idx * s->air_len;
+ float *data_ir_r = s->data_ir[1] + idx * s->air_len;
+
for (j = 0; j < len; j++) {
- data_ir_l[offset + j] = ptr[len * N - j * N - N + I ] * gain_lin;
- data_ir_r[offset + j] = ptr[len * N - j * N - N + I + 1] * gain_lin;
+ data_ir_l[j] = ptr[len * N - j * N - N + I ] * gain_lin;
+ data_ir_r[j] = ptr[len * N - j * N - N + I + 1] * gain_lin;
}
} else {
- memset(fft_in_l, 0, n_fft * sizeof(*fft_in_l));
- memset(fft_in_r, 0, n_fft * sizeof(*fft_in_r));
+ FFTComplex *fft_in_l = s->data_hrtf[0] + idx * n_fft;
+ FFTComplex *fft_in_r = s->data_hrtf[1] + idx * n_fft;
- offset = idx * n_fft;
for (j = 0; j < len; j++) {
- fft_in_l[delay_l + j].re = ptr[j * N + I ] * gain_lin;
- fft_in_r[delay_r + j].re = ptr[j * N + I + 1] * gain_lin;
+ fft_in_l[j].re = ptr[j * N + I ] * gain_lin;
+ fft_in_r[j].re = ptr[j * N + I + 1] * gain_lin;
}
av_fft_permute(s->fft[0], fft_in_l);
av_fft_calc(s->fft[0], fft_in_l);
- memcpy(data_hrtf_l + offset, fft_in_l, n_fft * sizeof(*fft_in_l));
av_fft_permute(s->fft[0], fft_in_r);
av_fft_calc(s->fft[0], fft_in_r);
- memcpy(data_hrtf_r + offset, fft_in_r, n_fft * sizeof(*fft_in_r));
}
}
}
-
- av_frame_free(&s->in[i + 1].frame);
- }
-
- if (s->type == TIME_DOMAIN) {
- memcpy(s->data_ir[0], data_ir_l, sizeof(float) * nb_irs * s->air_len);
- memcpy(s->data_ir[1], data_ir_r, sizeof(float) * nb_irs * s->air_len);
- } else {
- s->data_hrtf[0] = av_calloc(n_fft * s->nb_irs, sizeof(FFTComplex));
- s->data_hrtf[1] = av_calloc(n_fft * s->nb_irs, sizeof(FFTComplex));
- if (!s->data_hrtf[0] || !s->data_hrtf[1]) {
- ret = AVERROR(ENOMEM);
- goto fail;
- }
-
- memcpy(s->data_hrtf[0], data_hrtf_l,
- sizeof(FFTComplex) * nb_irs * n_fft);
- memcpy(s->data_hrtf[1], data_hrtf_r,
- sizeof(FFTComplex) * nb_irs * n_fft);
}
s->have_hrirs = 1;
fail:
-
- for (i = 0; i < s->nb_inputs - 1; i++)
- av_frame_free(&s->in[i + 1].frame);
-
- av_freep(&data_ir_l);
- av_freep(&data_ir_r);
-
- av_freep(&data_hrtf_l);
- av_freep(&data_hrtf_r);
-
- av_freep(&fft_in_l);
- av_freep(&fft_in_r);
-
return ret;
}
FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[0], ctx);
if (!s->eof_hrirs) {
int eof = 1;
- for (i = 1; i < s->nb_inputs; i++) {
- if (s->in[i].eof)
+ for (i = 0; i < s->nb_hrir_inputs; i++) {
+ AVFilterLink *input = ctx->inputs[i + 1];
+
+ if (s->hrir_in[i].eof)
continue;
- if ((ret = check_ir(ctx->inputs[i], i)) < 0)
+ if ((ret = check_ir(input, i)) < 0)
return ret;
- if (ff_outlink_get_status(ctx->inputs[i]) == AVERROR_EOF) {
- if (!ff_inlink_queued_samples(ctx->inputs[i])) {
+ if (ff_outlink_get_status(input) == AVERROR_EOF) {
+ if (!ff_inlink_queued_samples(input)) {
av_log(ctx, AV_LOG_ERROR, "No samples provided for "
- "HRIR stream %d.\n", i - 1);
+ "HRIR stream %d.\n", i);
return AVERROR_INVALIDDATA;
}
- s->in[i].eof = 1;
+ s->hrir_in[i].eof = 1;
} else {
if (ff_outlink_frame_wanted(ctx->outputs[0]))
- ff_inlink_request_frame(ctx->inputs[i]);
+ ff_inlink_request_frame(input);
eof = 0;
}
}
if (ret)
return ret;
} else {
- for (i = 1; i < s->nb_inputs; i++) {
+ for (i = 1; i <= s->nb_hrir_inputs; i++) {
ret = ff_channel_layouts_ref(stereo_layout, &ctx->inputs[i]->outcfg.channel_layouts);
if (ret)
return ret;
return AVERROR(EINVAL);
}
+ s->lfe_channel = av_get_channel_layout_channel_index(inlink->channel_layout,
+ AV_CH_LOW_FREQUENCY);
return 0;
}
parse_map(ctx);
- s->in = av_calloc(s->nb_inputs, sizeof(*s->in));
- if (!s->in)
- return AVERROR(ENOMEM);
-
- for (i = 1; i < s->nb_inputs; i++) {
- char *name = av_asprintf("hrir%d", i - 1);
+ for (i = 0; i < s->nb_hrir_inputs; i++) {
+ char *name = av_asprintf("hrir%d", i);
AVFilterPad pad = {
.name = name,
.type = AVMEDIA_TYPE_AUDIO,
};
if (!name)
return AVERROR(ENOMEM);
- if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0) {
+ if ((ret = ff_insert_inpad(ctx, i + 1, &pad)) < 0) {
av_freep(&pad.name);
return ret;
}
}
- s->fdsp = avpriv_float_dsp_alloc(0);
- if (!s->fdsp)
- return AVERROR(ENOMEM);
+ if (s->type == TIME_DOMAIN) {
+ AVFloatDSPContext *fdsp = avpriv_float_dsp_alloc(0);
+ if (!fdsp)
+ return AVERROR(ENOMEM);
+ s->scalarproduct_float = fdsp->scalarproduct_float;
+ av_free(fdsp);
+ }
return 0;
}
av_fft_end(s->ifft[1]);
av_fft_end(s->fft[0]);
av_fft_end(s->fft[1]);
- av_freep(&s->delay[0]);
- av_freep(&s->delay[1]);
av_freep(&s->data_ir[0]);
av_freep(&s->data_ir[1]);
av_freep(&s->ringbuffer[0]);
av_freep(&s->temp_afft[1]);
av_freep(&s->data_hrtf[0]);
av_freep(&s->data_hrtf[1]);
- av_freep(&s->fdsp);
- av_freep(&s->in);
for (unsigned i = 1; i < ctx->nb_inputs; i++)
av_freep(&ctx->input_pads[i].name);
}
{ NULL }
};
-AVFilter ff_af_headphone = {
+const AVFilter ff_af_headphone = {
.name = "headphone",
.description = NULL_IF_CONFIG_SMALL("Apply headphone binaural spatialization with HRTFs in additional streams."),
.priv_size = sizeof(HeadphoneContext),
projects / ffmpeg / blobdiff