
*** Original commit *** Pass startPositionUs into Renderer.replaceStream Plumb this down into BaseRenderer.onStreamChanged and use it when deciding whether to render the first frame of a new period. *** PiperOrigin-RevId: 323447253
*** Original commit *** Pass startPositionUs into Renderer.replaceStream Plumb this down into BaseRenderer.onStreamChanged and use it when deciding whether to render the first frame of a new period. *** PiperOrigin-RevId: 323447253