SDK / exoplayer

If
  a) the end of stream buffer arrives with a frame rather than an
     empty buffer or
  b) processDataV29() renders several decoder output buffers to the
     FrameEditor's input Surface immediately before encountering the
     EOS flag
these frames were previously stuck in the FrameEditor's input Surface
and never fed to the encoder.

PiperOrigin-RevId: 424898820