message: Change the value of bit/pixel from channels to 8*channels because videos encoded
  by cap_mjpeg_encoder.cpp don't play on windows media player.
  Issue number
diff: @@ -720,7 +720,7 @@ public:
  strm.putInt(height);
  strm.putShort(1); // planes (1 means interleaved data (after decompression))
  - strm.putShort(channels); // bits per pixel
  + strm.putShort(8 * channels); // bits per pixel
  strm.putInt(fourCC('M', 'J', 'P', 'G'));
  strm.putInt(width * height * channels);
  strm.putInt(0);
  