diff options
author | Aman Gupta <aman@tmm1.net> | 2016-01-13 04:27:06 +0300 |
---|---|---|
committer | Clément Bœsch <u@pkh.me> | 2016-01-15 01:13:15 +0300 |
commit | 3a0e5cfcee5bcbf60e3830da0d03041de3f1e5f5 (patch) | |
tree | 3045f4ee7d204fed03512eab772057996a8b2812 /libavcodec | |
parent | 9027806e3cf6b8d2693f74c57abfd88c8c2a9008 (diff) |
lavc/ccaption_dec: clear all unused rows during rollup
Sometimes rollup captions can move around the screen. This fixes "ghost"
captions from below the current rollup area from continuing to be
captured when a rollup moves higher up on the screen.
Diffstat (limited to 'libavcodec')
-rw-r--r-- | libavcodec/ccaption_dec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/ccaption_dec.c b/libavcodec/ccaption_dec.c index 3e335804fa..330ea6ac59 100644 --- a/libavcodec/ccaption_dec.c +++ b/libavcodec/ccaption_dec.c @@ -294,8 +294,11 @@ static void roll_up(CCaptionSubContext *ctx) */ keep_lines = FFMIN(ctx->cursor_row + 1, ctx->rollup); - for (i = 0; i < ctx->cursor_row - keep_lines; i++) + for (i = 0; i < SCREEN_ROWS; i++) { + if (i > ctx->cursor_row - keep_lines && i <= ctx->cursor_row) + continue; UNSET_FLAG(screen->row_used, i); + } for (i = 0; i < keep_lines && screen->row_used; i++) { const int i_row = ctx->cursor_row - keep_lines + i + 1; |