diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/combiner.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/lib/combiner.cc b/src/lib/combiner.cc index 367cefa7f..f7d634832 100644 --- a/src/lib/combiner.cc +++ b/src/lib/combiner.cc @@ -45,6 +45,14 @@ Combiner::process_video (shared_ptr<const Image> image, bool, shared_ptr<Subtitl void Combiner::process_video_b (shared_ptr<const Image> image, bool, shared_ptr<Subtitle> sub, double t) { + if (!_image) { + /* It's possible for filters in the A-side to mean that we get a B frame + before any A; just skip the B frame in that case. This at least prevents + a crash, but may not be right. + */ + return; + } + /* Copy the right half of this image into our _image */ /* XXX: this should probably be in the Image class */ for (int i = 0; i < image->components(); ++i) { |