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avfilter/showvolume : add comment for orientation condition

This commit is contained in:
Martin Vignali 2018-03-30 21:13:27 +02:00 committed by Paul B Mahol
parent cdd6a525e4
commit 34304677c0
1 changed files with 4 additions and 4 deletions
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8
libavfilter/avf_showvolume.c
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@ -222,7 +222,7 @@ static void drawtext(AVFrame *pic, int x, int y, const char *txt, int o)
for (i = 0; txt[i]; i++) {
int char_y, mask;
if (o) {
if (o) { /* vertical orientation */
for (char_y = font_height - 1; char_y >= 0; char_y--) {
uint8_t *p = pic->data[0] + (y + i * 10) * pic->linesize[0] + x * 4;
for (mask = 0x80; mask; mask >>= 1) {
@ -231,7 +231,7 @@ static void drawtext(AVFrame *pic, int x, int y, const char *txt, int o)
p += pic->linesize[0];
}
}
} else {
} else { /* horizontal orientation */
uint8_t *p = pic->data[0] + y * pic->linesize[0] + (x + i * 8) * 4;
for (char_y = 0; char_y < font_height; char_y++) {
for (mask = 0x80; mask; mask >>= 1) {
@ -285,7 +285,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
}
}
if (s->orientation) {
if (s->orientation) { /* vertical */
for (c = 0; c < inlink->channels; c++) {
float *src = (float *)insamples->extended_data[c];
uint32_t *lut = s->color_lut + s->w * c;
@ -313,7 +313,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
drawtext(s->out, c * (s->h + s->b) + (s->h - 10) / 2, outlink->h - 35, channel_name, 1);
}
}
} else {
} else { /* horizontal */
for (c = 0; c < inlink->channels; c++) {
float *src = (float *)insamples->extended_data[c];
uint32_t *lut = s->color_lut + s->w * c;