From 7155763b78fcc1f158e02f4d44d251a1e597f0cc Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Sun, 8 Jul 2012 04:20:22 +0200 Subject: vf_drawtext: don't give up its own reference to the input buffer. Directly forwarding the input buffer to the next filter means that drawtext no longer owns any references to it and thus shouldn't refer to it in any way. --- libavfilter/vf_drawtext.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'libavfilter/vf_drawtext.c') diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c index 22a9480aba..fd2ec8deae 100644 --- a/libavfilter/vf_drawtext.c +++ b/libavfilter/vf_drawtext.c @@ -812,6 +812,7 @@ static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref) { AVFilterContext *ctx = inlink->dst; DrawTextContext *dtext = ctx->priv; + AVFilterBufferRef *buf_out; int fail = 0; if (dtext_prepare_text(ctx) < 0) { @@ -850,7 +851,8 @@ static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref) (int)dtext->var_values[VAR_N], dtext->var_values[VAR_T], dtext->x, dtext->y, dtext->x+dtext->w, dtext->y+dtext->h); - ff_start_frame(inlink->dst->outputs[0], inpicref); + buf_out = avfilter_ref_buffer(inpicref, ~0); + ff_start_frame(inlink->dst->outputs[0], buf_out); } static void end_frame(AVFilterLink *inlink) @@ -866,6 +868,7 @@ static void end_frame(AVFilterLink *inlink) ff_draw_slice(outlink, 0, picref->video->h, 1); ff_end_frame(outlink); + avfilter_unref_buffer(inlink->cur_buf); } AVFilter avfilter_vf_drawtext = { -- cgit v1.2.3