General
Complete name                            : Mahou Shoujo Madoka Magica - Drama CD 4 - Natsu no Mahou Shoujo Kyouka Gasshuku!!.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/avc1/mp41)
File size                                : 70.7 MiB
Duration                                 : 27 min 15 s
Overall bit rate                         : 363 kb/s
Description                              : Coded by New Bilibili Transcoder v1.1
Encoded date                             : UTC 1904-01-01 00:00:00
Tagged date                              : UTC 1904-01-01 00:00:00
Writing application                      : Lavf57.0.100

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L3.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 8 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 27 min 15 s
Bit rate                                 : 161 kb/s
Nominal bit rate                         : 409 kb/s
Width                                    : 480 pixels
Height                                   : 360 pixels
Display aspect ratio                     : 4:3
Frame rate mode                          : Variable
Frame rate                               : 18.000 FPS
Minimum frame rate                       : 14.178 FPS
Maximum frame rate                       : 18.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.052
Stream size                              : 31.3 MiB (44%)
Writing library                          : x264 core 146
Encoding settings                        : cabac=1 / ref=8 / deblock=1:-1:-1 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / threads=36 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=4 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=180 / keyint_min=18 / scenecut=40 / intra_refresh=0 / rc_lookahead=180 / rc=abr / mbtree=1 / bitrate=409 / ratetol=1.0 / qcomp=0.50 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=819 / vbv_bufsize=1638 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=2:1.00
Encoded date                             : UTC 1904-01-01 00:00:00
Tagged date                              : UTC 1904-01-01 00:00:00

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 27 min 15 s
Bit rate mode                            : Constant
Bit rate                                 : 197 kb/s
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 44.1 kHz
Frame rate                               : 43.066 FPS (1024 spf)
Compression mode                         : Lossy
Stream size                              : 38.3 MiB (54%)
Default                                  : Yes
Alternate group                          : 1
Encoded date                             : UTC 1904-01-01 00:00:00
Tagged date                              : UTC 1904-01-01 00:00:00