lavc video: try_open_remaining_pixfmts - do not crash on pix_fmts==NULL

Do not crash on codec->pix_fmts == NULL in try_open_remaining_pixfmts. This can occur eg. for h264_v4l2m2m encoder on RPi.
CESNET · Aug 28, 2023 · 5e525db · 5e525db
1 parent efe73aa
commit 5e525db
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/video_compress/libavcodec.cpp b/src/video_compress/libavcodec.cpp
@@ -1008,6 +1008,9 @@ try_open_remaining_pixfmts(state_video_compress_libav *s, video_desc desc,
         return AV_PIX_FMT_NONE;
 #endif
         unsigned usable_fmt_cnt = 0;
+        if (codec->pix_fmts == nullptr) {
+                return AV_PIX_FMT_NONE;
+        }
         for (const auto *pix = codec->pix_fmts; *pix != AV_PIX_FMT_NONE;
              ++pix) {
                 usable_fmt_cnt += 1;