diff --git a/libavcodec/ccaption_dec.c b/libavcodec/ccaption_dec.c index 3b15149d79..3734eca580 100644 --- a/libavcodec/ccaption_dec.c +++ b/libavcodec/ccaption_dec.c @@ -713,6 +713,11 @@ static void process_cc608(CCaptionSubContext *ctx, int64_t pts, uint8_t hi, uint /* Standard characters (always in pairs) */ handle_char(ctx, hi, lo, pts); ctx->prev_cmd[0] = ctx->prev_cmd[1] = 0; + } else if (hi == 0x17 && lo >= 0x21 && lo <= 0x23) { + /* Tab offsets (spacing) */ + for (int i = 0; i < lo - 0x20; i++) { + handle_char(ctx, ' ', 0, pts); + } } else { /* Ignoring all other non data code */ ff_dlog(ctx, "Unknown command 0x%hhx 0x%hhx\n", hi, lo);