2e7e01c821c111466e7a2844826b7f6d *tests/data/fate/sub-ttml-mp4-dfxp.mp4
8519 tests/data/fate/sub-ttml-mp4-dfxp.mp4
#tb 0: 1/1000
#media_type 0: data
#codec_id 0: none
0,          0,          0,    68500,     7866, 0x456c36b7
{
    "packets": [
        {
            "codec_type": "data",
            "stream_index": 0,
            "pts": 0,
            "pts_time": "0.000000",
            "dts": 0,
            "dts_time": "0.000000",
            "duration": 68500,
            "duration_time": "68.500000",
            "size": "7866",
            "pos": "44",
            "flags": "K_"
        }
    ],
    "programs": [

    ],
    "streams": [
        {
            "index": 0,
            "codec_type": "data",
            "codec_tag_string": "dfxp",
            "codec_tag": "0x70786664",
            "time_base": "1/1000",
            "start_time": "0.000000",
            "duration_ts": 68500,
            "duration": "68.500000",
            "nb_frames": "1",
            "nb_read_packets": "1",
            "tags": {
                "language": "und",
                "handler_name": "SubtitleHandler"
            }
        }
    ]
}