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lavc/libzvbi-teletextdec: remove cmax variable

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Use VBI_NB_COLORS instead.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2016-01-21 22:50:46 +01:00
parent fe4a2cbd4d
commit 92f2a9dbc5
1 changed files with 5 additions and 7 deletions
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12
libavcodec/libzvbi-teletextdec.c
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@ -229,18 +229,16 @@ static int gen_sub_bitmap(TeletextContext *ctx, AVSubtitleRect *sub_rect, vbi_pa
{
int resx = page->columns * BITMAP_CHAR_WIDTH;
int resy = (page->rows - chop_top) * BITMAP_CHAR_HEIGHT;
uint8_t ci, cmax = 0;
uint8_t ci;
vbi_char *vc = page->text + (chop_top * page->columns);
vbi_char *vcend = page->text + (page->rows * page->columns);
for (; vc < vcend; vc++) {
if (vc->opacity != VBI_TRANSPARENT_SPACE) {
cmax = VBI_NB_COLORS;
if (vc->opacity != VBI_TRANSPARENT_SPACE)
break;
}
}
if (cmax == 0) {
if (vc >= vcend) {
av_log(ctx, AV_LOG_DEBUG, "dropping empty page %3x\n", page->pgno);
sub_rect->type = SUBTITLE_NONE;
return 0;
@ -261,13 +259,13 @@ static int gen_sub_bitmap(TeletextContext *ctx, AVSubtitleRect *sub_rect, vbi_pa
sub_rect->y = ctx->y_offset + chop_top * BITMAP_CHAR_HEIGHT;
sub_rect->w = resx;
sub_rect->h = resy;
sub_rect->nb_colors = cmax;
sub_rect->nb_colors = VBI_NB_COLORS;
sub_rect->data[1] = av_mallocz(AVPALETTE_SIZE);
if (!sub_rect->data[1]) {
av_freep(&sub_rect->data[0]);
return AVERROR(ENOMEM);
}
for (ci = 0; ci < cmax; ci++) {
for (ci = 0; ci < VBI_NB_COLORS; ci++) {
int r, g, b, a;
r = VBI_R(page->color_map[ci]);