How do I install ffmpeg on travis? Who knows...
How do I install ffmpeg on travis? Who knows...


Former-commit-id: 6129044ef354b60d5adcf2db69e6a818fbc9dd59
Former-commit-id: 0f30f89102f845155d0a2d0c9b1a972f6585915b
urinieto/msaf,urinieto/msaf