libhb: fix tx3g styles when the entire line is one style

the style was not getting flushed if there were no style changes


git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6375 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 12 insertions, 2 deletions

diff --git a/libhb/muxcommon.c b/libhb/muxcommon.c
index d1646e7fb..a555f95c4 100644
--- a/libhb/muxcommon.c
+++ b/libhb/muxcommon.c
@@ -751,10 +751,15 @@ static void update_style(style_context_t *ctx,
             ctx->current_style.fg_alpha != style->fg_alpha)
         {
             update_style_atoms(ctx, pos - 1);
+            ctx->current_style = *style;
+            ctx->style_start = pos;
         }
     }
-    ctx->current_style = *style;
-    ctx->style_start = pos;
+    else
+    {
+        ctx->current_style = *style;
+        ctx->style_start = pos;
+    }
 }
 
 static void style_context_init(style_context_t *ctx, uint8_t *style_atoms)
@@ -831,6 +836,11 @@ void hb_muxmp4_process_subtitle_style(uint8_t *input,
         in_pos += consumed;
         update_style(&ctx, &style, out_pos - utf8_count);
     }
+    // Return to default style at end of line, flushes any pending
+    // style changes
+    hb_ssa_style_init(&style);
+    update_style(&ctx, &style, out_pos - utf8_count);
+
     // null terminate output string
     output[out_pos] = 0;