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Code Issues Releases Activity

avfilter/avf_avectorscope: use the name 's' for the pointer to the private context

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-01-28 14:34:11 +00:00
parent 6121968a9e
commit 67aaa7056d
1 changed files with 46 additions and 46 deletions
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92
libavfilter/avf_avectorscope.c
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@ -75,37 +75,37 @@ static const AVOption avectorscope_options[] = {
AVFILTER_DEFINE_CLASS(avectorscope); AVFILTER_DEFINE_CLASS(avectorscope);
static void draw_dot(AudioVectorScopeContext *p, unsigned x, unsigned y) static void draw_dot(AudioVectorScopeContext *s, unsigned x, unsigned y)
{ {
const int linesize = p->outpicref->linesize[0]; const int linesize = s->outpicref->linesize[0];
uint8_t *dst; uint8_t *dst;
if (p->zoom > 1) { if (s->zoom > 1) {
if (y >= p->h || x >= p->w) if (y >= s->h || x >= s->w)
return; return;
} else { } else {
y = FFMIN(y, p->h - 1); y = FFMIN(y, s->h - 1);
x = FFMIN(x, p->w - 1); x = FFMIN(x, s->w - 1);
} }
dst = &p->outpicref->data[0][y * linesize + x * 4]; dst = &s->outpicref->data[0][y * linesize + x * 4];
dst[0] = FFMIN(dst[0] + p->contrast[0], 255); dst[0] = FFMIN(dst[0] + s->contrast[0], 255);
dst[1] = FFMIN(dst[1] + p->contrast[1], 255); dst[1] = FFMIN(dst[1] + s->contrast[1], 255);
dst[2] = FFMIN(dst[2] + p->contrast[2], 255); dst[2] = FFMIN(dst[2] + s->contrast[2], 255);
} }
static void fade(AudioVectorScopeContext *p) static void fade(AudioVectorScopeContext *s)
{ {
const int linesize = p->outpicref->linesize[0]; const int linesize = s->outpicref->linesize[0];
int i, j; int i, j;
if (p->fade[0] || p->fade[1] || p->fade[2]) { if (s->fade[0] || s->fade[1] || s->fade[2]) {
uint8_t *d = p->outpicref->data[0]; uint8_t *d = s->outpicref->data[0];
for (i = 0; i < p->h; i++) { for (i = 0; i < s->h; i++) {
for (j = 0; j < p->w*4; j+=4) { for (j = 0; j < s->w*4; j+=4) {
d[j+0] = FFMAX(d[j+0] - p->fade[0], 0); d[j+0] = FFMAX(d[j+0] - s->fade[0], 0);
d[j+1] = FFMAX(d[j+1] - p->fade[1], 0); d[j+1] = FFMAX(d[j+1] - s->fade[1], 0);
d[j+2] = FFMAX(d[j+2] - p->fade[2], 0); d[j+2] = FFMAX(d[j+2] - s->fade[2], 0);
} }
d += linesize; d += linesize;
} }
@ -145,10 +145,10 @@ static int query_formats(AVFilterContext *ctx)
static int config_input(AVFilterLink *inlink) static int config_input(AVFilterLink *inlink)
{ {
AVFilterContext *ctx = inlink->dst; AVFilterContext *ctx = inlink->dst;
AudioVectorScopeContext *p = ctx->priv; AudioVectorScopeContext *s = ctx->priv;
int nb_samples; int nb_samples;
nb_samples = FFMAX(1024, ((double)inlink->sample_rate / av_q2d(p->frame_rate)) + 0.5); nb_samples = FFMAX(1024, ((double)inlink->sample_rate / av_q2d(s->frame_rate)) + 0.5);
inlink->partial_buf_size = inlink->partial_buf_size =
inlink->min_samples = inlink->min_samples =
inlink->max_samples = nb_samples; inlink->max_samples = nb_samples;
@ -158,15 +158,15 @@ static int config_input(AVFilterLink *inlink)
static int config_output(AVFilterLink *outlink) static int config_output(AVFilterLink *outlink)
{ {
AudioVectorScopeContext *p = outlink->src->priv; AudioVectorScopeContext *s = outlink->src->priv;
outlink->w = p->w; outlink->w = s->w;
outlink->h = p->h; outlink->h = s->h;
outlink->sample_aspect_ratio = (AVRational){1,1}; outlink->sample_aspect_ratio = (AVRational){1,1};
outlink->frame_rate = p->frame_rate; outlink->frame_rate = s->frame_rate;
p->hw = p->w / 2; s->hw = s->w / 2;
p->hh = p->h / 2; s->hh = s->h / 2;
return 0; return 0;
} }
@ -175,35 +175,35 @@ 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];
AudioVectorScopeContext *p = ctx->priv; AudioVectorScopeContext *s = ctx->priv;
const int hw = p->hw; const int hw = s->hw;
const int hh = p->hh; const int hh = s->hh;
unsigned x, y; unsigned x, y;
const double zoom = p->zoom; const double zoom = s->zoom;
int i; int i;
if (!p->outpicref || p->outpicref->width != outlink->w || if (!s->outpicref || s->outpicref->width != outlink->w ||
p->outpicref->height != outlink->h) { s->outpicref->height != outlink->h) {
av_frame_free(&p->outpicref); av_frame_free(&s->outpicref);
p->outpicref = ff_get_video_buffer(outlink, outlink->w, outlink->h); s->outpicref = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!p->outpicref) { if (!s->outpicref) {
av_frame_free(&insamples); av_frame_free(&insamples);
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
} }
for (i = 0; i < outlink->h; i++) for (i = 0; i < outlink->h; i++)
memset(p->outpicref->data[0] + i * p->outpicref->linesize[0], 0, outlink->w * 4); memset(s->outpicref->data[0] + i * s->outpicref->linesize[0], 0, outlink->w * 4);
} }
p->outpicref->pts = insamples->pts; s->outpicref->pts = insamples->pts;
fade(p); fade(s);
switch (insamples->format) { switch (insamples->format) {
case AV_SAMPLE_FMT_S16: case AV_SAMPLE_FMT_S16:
for (i = 0; i < insamples->nb_samples; i++) { for (i = 0; i < insamples->nb_samples; i++) {
int16_t *src = (int16_t *)insamples->data[0] + i * 2; int16_t *src = (int16_t *)insamples->data[0] + i * 2;
if (p->mode == LISSAJOUS) { if (s->mode == LISSAJOUS) {
x = ((src[1] - src[0]) * zoom / (float)(UINT16_MAX) + 1) * hw; x = ((src[1] - src[0]) * zoom / (float)(UINT16_MAX) + 1) * hw;
y = (1.0 - (src[0] + src[1]) * zoom / (float)UINT16_MAX) * hh; y = (1.0 - (src[0] + src[1]) * zoom / (float)UINT16_MAX) * hh;
} else { } else {
@ -211,14 +211,14 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
y = (src[0] * zoom / (float)INT16_MAX + 1) * hh; y = (src[0] * zoom / (float)INT16_MAX + 1) * hh;
} }
draw_dot(p, x, y); draw_dot(s, x, y);
} }
break; break;
case AV_SAMPLE_FMT_FLT: case AV_SAMPLE_FMT_FLT:
for (i = 0; i < insamples->nb_samples; i++) { for (i = 0; i < insamples->nb_samples; i++) {
float *src = (float *)insamples->data[0] + i * 2; float *src = (float *)insamples->data[0] + i * 2;
if (p->mode == LISSAJOUS) { if (s->mode == LISSAJOUS) {
x = ((src[1] - src[0]) * zoom / 2 + 1) * hw; x = ((src[1] - src[0]) * zoom / 2 + 1) * hw;
y = (1.0 - (src[0] + src[1]) * zoom / 2) * hh; y = (1.0 - (src[0] + src[1]) * zoom / 2) * hh;
} else { } else {
@ -226,21 +226,21 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
y = (src[0] * zoom + 1) * hh; y = (src[0] * zoom + 1) * hh;
} }
draw_dot(p, x, y); draw_dot(s, x, y);
} }
break; break;
} }
av_frame_free(&insamples); av_frame_free(&insamples);
return ff_filter_frame(outlink, av_frame_clone(p->outpicref)); return ff_filter_frame(outlink, av_frame_clone(s->outpicref));
} }
static av_cold void uninit(AVFilterContext *ctx) static av_cold void uninit(AVFilterContext *ctx)
{ {
AudioVectorScopeContext *p = ctx->priv; AudioVectorScopeContext *s = ctx->priv;
av_frame_free(&p->outpicref); av_frame_free(&s->outpicref);
} }
static const AVFilterPad audiovectorscope_inputs[] = { static const AVFilterPad audiovectorscope_inputs[] = {