Use avformat_free_context to free a format context that failed to open
Use avformat_free_context to free a format context that failed to open

rryan/openal-soft,irungentoo/openal-soft-tox,aaronmjacobs/openal-soft,franklixuefei/openal-soft,Wemersive/openal-soft,dapetcu21/openal-soft,jims/openal-soft,mmozeiko/OpenAL-Soft,arkana-fts/openal-soft,franklixuefei/openal-soft,irungentoo/openal-soft-tox,Wemersive/openal-soft,alexxvk/openal-soft,EddieRingle/openal-soft,EddieRingle/openal-soft,arkana-fts/openal-soft,jims/openal-soft,alexxvk/openal-soft,BeamNG/openal-soft,aaronmjacobs/openal-soft,rryan/openal-soft,mmozeiko/OpenAL-Soft,BeamNG/openal-soft