diff options
| author | Anton Khirnov <anton@khirnov.net> | 2012-07-08 04:20:22 +0200 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2012-07-20 21:07:32 +0200 |
| commit | 7155763b78fcc1f158e02f4d44d251a1e597f0cc (patch) | |
| tree | 94eeb7c4c30cdd3f84ce284cf384e80f95f77efc | |
| parent | d19499c7960fba97e6142dc72d49825e834e3419 (diff) | |
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.
| -rw-r--r-- | libavfilter/vf_drawtext.c | 5 |
1 files changed, 4 insertions, 1 deletions
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 = { |