@@ -26,6 +26,7 @@

 #include "libavutil/opt.h"

 #include "libavutil/avassert.h"

 #include "libavutil/avstring.h"

+#include "libavutil/pixdesc.h"

 #include "avformat.h"

 #include "internal.h"

 #include "ffm.h"

@@ -365,6 +366,11 @@ static int ffm2_read_header(AVFormatContext *s)

             codec->height = avio_rb16(pb);

             codec->gop_size = avio_rb16(pb);

             codec->pix_fmt = avio_rb32(pb);

+            if (!av_pix_fmt_desc_get(codec->pix_fmt)) {

+                av_log(s, AV_LOG_ERROR, "Invalid pix fmt id: %d\n", codec->pix_fmt);

+                codec->pix_fmt = AV_PIX_FMT_NONE;

+                goto fail;

+            }

             codec->qmin = avio_r8(pb);

             codec->qmax = avio_r8(pb);

             codec->max_qdiff = avio_r8(pb);

@@ -557,6 +563,11 @@ static int ffm_read_header(AVFormatContext *s)

             codec->height = avio_rb16(pb);

             codec->gop_size = avio_rb16(pb);

             codec->pix_fmt = avio_rb32(pb);

+            if (!av_pix_fmt_desc_get(codec->pix_fmt)) {

+                av_log(s, AV_LOG_ERROR, "Invalid pix fmt id: %d\n", codec->pix_fmt);

+                codec->pix_fmt = AV_PIX_FMT_NONE;

+                goto fail;

+            }

             codec->qmin = avio_r8(pb);

             codec->qmax = avio_r8(pb);

             codec->max_qdiff = avio_r8(pb);