vf_pad: check that we have write permission before writing in the buffer.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-06-16 01:54:11 +02:00
parent 2b1fc5621d
commit 46c50b1726

View File

@ -284,7 +284,7 @@ static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
)
break;
}
pad->needs_copy= plane < 4 && outpicref->data[plane];
pad->needs_copy= plane < 4 && outpicref->data[plane] || !(outpicref->perms & AV_PERM_WRITE);
if(pad->needs_copy){
av_log(inlink->dst, AV_LOG_DEBUG, "Direct padding impossible allocating new frame\n");
avfilter_unref_buffer(outpicref);