From: Aman Gupta <a...@tmm1.net>
This ensures that captions are written towards the bottom of the screen
when tuning into mid-stream. The row will be reset on the receipt of the
next PAC command. Row 10 was chosen as it corresponds to the value of
"0" in a PAC (see row_map in handle_pac()).
---
libavcodec/ccaption_dec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/ccaption_dec.c b/libavcodec/ccaption_dec.c
index 16a7959..4a2db31 100644
--- a/libavcodec/ccaption_dec.c
+++ b/libavcodec/ccaption_dec.c
@@ -261,6 +261,7 @@ static av_cold int init_decoder(AVCodecContext *avctx)
/* taking by default roll up to 2 */
ctx->mode = CCMODE_ROLLUP;
ctx->rollup = 2;
+ ctx->cursor_row = 10;
ret = ff_ass_subtitle_header(avctx, "Monospace",
ASS_DEFAULT_FONT_SIZE,
ASS_DEFAULT_COLOR,
@@ -298,7 +299,7 @@ static void flush_decoder(AVCodecContext *avctx)
ctx->prev_cmd[1] = 0;
ctx->mode = CCMODE_ROLLUP;
ctx->rollup = 2;
- ctx->cursor_row = 0;
+ ctx->cursor_row = 10;
ctx->cursor_column = 0;
ctx->cursor_font = 0;
ctx->cursor_color = 0;
--
2.8.1
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