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avfilter/avf_avectorscope: simplify code a little

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This commit is contained in:
Paul B Mahol 2022-11-27 19:42:23 +01:00
parent 1009396953
commit 2324b917fc
1 changed files with 13 additions and 21 deletions
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34
libavfilter/avf_avectorscope.c
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@ -252,6 +252,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
{ {
AVFilterContext *ctx = inlink->dst; AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = ctx->outputs[0]; AVFilterLink *outlink = ctx->outputs[0];
const int16_t *samples = (const int16_t *)insamples->data[0];
const float *samplesf = (const float *)insamples->data[0];
AudioVectorScopeContext *s = ctx->priv; AudioVectorScopeContext *s = ctx->priv;
const int hw = s->hw; const int hw = s->hw;
const int hh = s->hh; const int hh = s->hh;
@ -259,7 +261,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
unsigned x, y; unsigned x, y;
unsigned prev_x = s->prev_x, prev_y = s->prev_y; unsigned prev_x = s->prev_x, prev_y = s->prev_y;
double zoom = s->zoom; double zoom = s->zoom;
int i;
if (!s->outpicref || s->outpicref->width != outlink->w || if (!s->outpicref || s->outpicref->width != outlink->w ||
s->outpicref->height != outlink->h) { s->outpicref->height != outlink->h) {
@ -271,7 +272,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
} }
s->outpicref->sample_aspect_ratio = (AVRational){1,1}; s->outpicref->sample_aspect_ratio = (AVRational){1,1};
for (i = 0; i < outlink->h; i++) for (int i = 0; i < outlink->h; i++)
memset(s->outpicref->data[0] + i * s->outpicref->linesize[0], 0, outlink->w * 4); memset(s->outpicref->data[0] + i * s->outpicref->linesize[0], 0, outlink->w * 4);
} }
s->outpicref->pts = av_rescale_q(insamples->pts, inlink->time_base, outlink->time_base); s->outpicref->pts = av_rescale_q(insamples->pts, inlink->time_base, outlink->time_base);
@ -284,22 +285,15 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
float max = 0; float max = 0;
switch (insamples->format) { switch (insamples->format) {
case AV_SAMPLE_FMT_S16: { case AV_SAMPLE_FMT_S16:
int16_t *samples = (int16_t *)insamples->data[0]; for (int i = 0; i < insamples->nb_samples * 2; i++) {
for (i = 0; i < insamples->nb_samples * 2; i++) {
float sample = samples[i] / (float)INT16_MAX; float sample = samples[i] / (float)INT16_MAX;
max = FFMAX(FFABS(sample), max); max = FFMAX(FFABS(sample), max);
} }
}
break; break;
case AV_SAMPLE_FMT_FLT: { case AV_SAMPLE_FMT_FLT:
float *samples = (float *)insamples->data[0]; for (int i = 0; i < insamples->nb_samples * 2; i++) {
max = FFMAX(FFABS(samplesf[i]), max);
for (i = 0; i < insamples->nb_samples * 2; i++) {
max = FFMAX(FFABS(samples[i]), max);
}
} }
break; break;
default: default:
@ -321,19 +315,17 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
zoom = 1. / max; zoom = 1. / max;
} }
for (i = 0; i < insamples->nb_samples; i++) { for (int i = 0; i < insamples->nb_samples; i++) {
int16_t *samples = (int16_t *)insamples->data[0] + i * 2;
float *samplesf = (float *)insamples->data[0] + i * 2;
float src[2]; float src[2];
switch (insamples->format) { switch (insamples->format) {
case AV_SAMPLE_FMT_S16: case AV_SAMPLE_FMT_S16:
src[0] = samples[0] / (float)INT16_MAX; src[0] = samples[i*2+0] / (float)INT16_MAX;
src[1] = samples[1] / (float)INT16_MAX; src[1] = samples[i*2+1] / (float)INT16_MAX;
break; break;
case AV_SAMPLE_FMT_FLT: case AV_SAMPLE_FMT_FLT:
src[0] = samplesf[0]; src[0] = samplesf[i*2+0];
src[1] = samplesf[1]; src[1] = samplesf[i*2+1];
break; break;
default: default:
av_assert2(0); av_assert2(0);