[hmagoo]

I'm seeing a lot of jerky video during scenes with a lot of detail or fast action. These are the codecs used in the video:

Video: MPEG4 Video (H264) 1280x720 23.976fps [English (Video 1) [Default] (AVC (H.264), High Profile, Level 4.1, 1280x720, 23.976 fps)]
Audio: Dolby AC3 48000Hz 6ch [English (Audio 1) [Default] (Dolby AC3, 48.0 kHz, 6 chn)]

I've tried this video with MediaCodec both on and off with no effect. Should this be expected?

try using libstagefright instead, I use that with a wired ethernet connection and don't have problems like you describe for that format. if that doesn't work try resetting your settings to default.