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Code Issues Releases Activity

avfilter/vf_datascope: fix rgba mapping for oscilloscope filter output

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This commit is contained in:
Paul B Mahol 2018-10-24 17:39:51 +02:00
parent f9d4126f28
commit bc940cf95c
1 changed files with 8 additions and 8 deletions
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16
libavfilter/vf_datascope.c
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@ -802,8 +802,8 @@ static void draw_trace8(OscilloscopeContext *s, AVFrame *frame)
if ((1 << c) & s->components) {
int x = i * s->width / s->nb_values;
int px = (i - 1) * s->width / s->nb_values;
int py = s->height - s->values[i-1].p[c] * s->height / 256;
int y = s->height - s->values[i].p[c] * s->height / 256;
int py = s->height - s->values[i-1].p[s->rgba_map[c]] * s->height / 256;
int y = s->height - s->values[i].p[s->rgba_map[c]] * s->height / 256;
draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]);
}
@ -821,8 +821,8 @@ static void draw_trace16(OscilloscopeContext *s, AVFrame *frame)
if ((1 << c) & s->components) {
int x = i * s->width / s->nb_values;
int px = (i - 1) * s->width / s->nb_values;
int py = s->height - s->values[i-1].p[c] * s->height / s->max;
int y = s->height - s->values[i].p[c] * s->height / s->max;
int py = s->height - s->values[i-1].p[s->rgba_map[c]] * s->height / s->max;
int y = s->height - s->values[i].p[s->rgba_map[c]] * s->height / s->max;
draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]);
}
@ -996,9 +996,9 @@ static int oscilloscope_filter_frame(AVFilterLink *inlink, AVFrame *frame)
for (i = 0; i < s->nb_values; i++) {
for (c = 0; c < s->nb_comps; c++) {
if ((1 << c) & s->components) {
max[c] = FFMAX(max[c], s->values[i].p[c]);
min[c] = FFMIN(min[c], s->values[i].p[c]);
average[c] += s->values[i].p[c];
max[c] = FFMAX(max[c], s->values[i].p[s->rgba_map[c]]);
min[c] = FFMIN(min[c], s->values[i].p[s->rgba_map[c]]);
average[c] += s->values[i].p[s->rgba_map[c]];
}
}
}
@ -1013,7 +1013,7 @@ static int oscilloscope_filter_frame(AVFilterLink *inlink, AVFrame *frame)
const char yuva[4] = { 'Y', 'U', 'V', 'A' };
char text[128];
snprintf(text, sizeof(text), "%c avg:%.1f min:%d max:%d\n", s->is_rgb ? rgba[c] : yuva[c], average[s->rgba_map[c]], min[s->rgba_map[c]], max[s->rgba_map[c]]);
snprintf(text, sizeof(text), "%c avg:%.1f min:%d max:%d\n", s->is_rgb ? rgba[c] : yuva[c], average[c], min[c], max[c]);
draw_text(&s->draw, frame, &s->white, s->ox + 2 + 280 * i++, s->oy + s->height + 4, text, 0);
}
}