diff options
| author | Aman Gupta <aman@tmm1.net> | 2016-01-06 01:54:54 +0300 |
|---|---|---|
| committer | Clément Bœsch <u@pkh.me> | 2016-01-08 22:24:49 +0300 |
| commit | 26abdd61a39735c7907297e9b5c8bfe5255be555 (patch) | |
| tree | 32c400c2fb07dba0e1c37b98983c09de88f3a444 /libavcodec/ccaption_dec.c | |
| parent | 53ee84f811c3a3e55c688116d41310e76d285d9e (diff) | |
lavc/ccaption_dec: implement "erase non displayed memory"
Diffstat (limited to 'libavcodec/ccaption_dec.c')
| -rw-r--r-- | libavcodec/ccaption_dec.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/libavcodec/ccaption_dec.c b/libavcodec/ccaption_dec.c index bfdf511bfc..02bce01e2d 100644 --- a/libavcodec/ccaption_dec.c +++ b/libavcodec/ccaption_dec.c @@ -361,12 +361,9 @@ static void handle_pac(CCaptionSubContext *ctx, uint8_t hi, uint8_t lo) } } -/** - * @param pts it is required to set end time - */ -static void handle_edm(CCaptionSubContext *ctx, int64_t pts) +static void handle_erase(CCaptionSubContext *ctx, int64_t pts, int n_screen) { - struct Screen *screen = ctx->screen + ctx->active_screen; + struct Screen *screen = ctx->screen + n_screen; reap_screen(ctx, pts); screen->row_used = 0; @@ -374,7 +371,7 @@ static void handle_edm(CCaptionSubContext *ctx, int64_t pts) static void handle_eoc(CCaptionSubContext *ctx, int64_t pts) { - handle_edm(ctx,pts); + handle_erase(ctx, pts, ctx->active_screen); ctx->active_screen = !ctx->active_screen; ctx->cursor_column = 0; } @@ -455,7 +452,7 @@ static void process_cc608(CCaptionSubContext *ctx, int64_t pts, uint8_t hi, uint break; case 0x2c: /* erase display memory */ - handle_edm(ctx, pts); + handle_erase(ctx, pts, ctx->active_screen); break; case 0x2d: /* carriage return */ @@ -464,6 +461,10 @@ static void process_cc608(CCaptionSubContext *ctx, int64_t pts, uint8_t hi, uint roll_up(ctx); ctx->cursor_column = 0; break; + case 0x2e: + /* erase non displayed memory */ + handle_erase(ctx, pts, !ctx->active_screen); + break; case 0x2f: /* end of caption */ ff_dlog(ctx, "handle_eoc\n"); |