[FFmpeg-cvslog] avfilter/formats: Alloc NULL fmts in SET_COMMON_FORMATS()

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Nov 21 22:15:32 2014 +0100| [b9ffafbfcc0f8aaffc9de3919a1d295dbe6d53f7] | committer: Michael Niedermayer

avfilter/formats: Alloc NULL fmts in SET_COMMON_FORMATS()

This avoids null pointer dereferences in case memory allocation has failed

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b9ffafbfcc0f8aaffc9de3919a1d295dbe6d53f7
---

 libavfilter/formats.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/formats.c b/libavfilter/formats.c
index 42afcf4..eb3b87a 100644
--- a/libavfilter/formats.c
+++ b/libavfilter/formats.c
@@ -494,7 +494,7 @@ void ff_formats_changeref(AVFilterFormats **oldref, AVFilterFormats **newref)
 }
 
 #define SET_COMMON_FORMATS(ctx, fmts, in_fmts, out_fmts, ref, list) \
-{                                                                   \
+if (fmts) {                                                         \
     int count = 0, i;                                               \
                                                                     \
     for (i = 0; i < ctx->nb_inputs; i++) {                          \