I get the following linker errors when building on Windows with VS2010 and --disable-webrtc 33:49.11 Unified_cpp_content_media_encoder0.obj : error LNK2019: unresolved external symbol I422ToI420 referenced in function "private: enum tag_nsresult __cdecl mozilla::VP8TrackEncoder::PrepareRawFrame(struct mozilla::VideoChunk &)" (?PrepareRawFrame@VP8TrackEncoder@mozilla@@AEAA?AW4tag_nsresult@@AEAUVideoChunk@2@@Z) 33:49.11 33:49.11 Unified_cpp_content_media_encoder0.obj : error LNK2019: unresolved external symbol I444ToI420 referenced in function "private: enum tag_nsresult __cdecl mozilla::VP8TrackEncoder::PrepareRawFrame(struct mozilla::VideoChunk &)" (?PrepareRawFrame@VP8TrackEncoder@mozilla@@AEAA?AW4tag_nsresult@@AEAUVideoChunk@2@@Z) 33:49.11 33:49.11 Unified_cpp_content_media_encoder0.obj : error LNK2019: unresolved external symbol NV21ToI420 referenced in function "private: enum tag_nsresult __cdecl mozilla::VP8TrackEncoder::PrepareRawFrame(struct mozilla::VideoChunk &)" (?PrepareRawFrame@VP8TrackEncoder@mozilla@@AEAA?AW4tag_nsresult@@AEAUVideoChunk@2@@Z) 33:49.11 33:49.11 Unified_cpp_content_media_encoder0.obj : error LNK2019: unresolved external symbol NV12ToI420 referenced in function "private: enum tag_nsresult __cdecl mozilla::VP8TrackEncoder::PrepareRawFrame(struct mozilla::VideoChunk &)" (?PrepareRawFrame@VP8TrackEncoder@mozilla@@AEAA?AW4tag_nsresult@@AEAUVideoChunk@2@@Z) This bug seems similar to bug 981780 and seems like it was introduced by the patch in bug 970787. I'm currently building without --disable-webrtc to verify that the problem goes away without that flag.

Yes, this is a known problem and basically a dup of bug 981780; I suggest dupping it against that