Buffering on a specific file
#1
Hello

The following file does not play smoothly (Sept 10 nightly). Is there something obvious on its specs that explains it? Maybe something related to it's format profile? Should all h264/AVC play well given some bitrate limits?

Code:
General
Unique ID                                : 182949639100611480189665618677398555119 (0x89A2D19E927F25B4A8B61666BA08C9EF)
Format                                   : Matroska
Format version                           : Version 1
File size                                : 4.37 GiB
Duration                                 : 1h 40mn
Overall bit rate                         : 6 257 Kbps
Encoded date                             : UTC 2008-11-21 15:49:13
Writing application                      : mkvmerge v2.4.0 ('Fumbling Towards Ecstasy') built on Oct 11 2008 20:13:15
Writing library                          : libebml v0.7.7 + libmatroska v0.8.1

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : [email protected]
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 16 frames
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 1h 40mn
Bit rate                                 : 5 356 Kbps
Width                                    : 1 280 pixels
Height                                   : 694 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.251
Stream size                              : 3.66 GiB (84%)
Writing library                          : x264 core 65 r1028M 83baa7f
Encoding settings                        : cabac=1 / ref=16 / deblock=0:0:0 / analyse=0x3:0x113 / me=umh / subme=9 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=3 / nr=0 / decimate=0 / mbaff=0 / bframes=4 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=3 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40(pre) / rc=2pass / bitrate=5356 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00
Language                                 : English

Audio #1
ID                                       : 2
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Codec ID                                 : A_AC3
Duration                                 : 1h 40mn
Bit rate mode                            : Constant
Bit rate                                 : 448 Kbps
Channel(s)                               : 3 channels
Channel positions                        : Front: L R,   Side: C
Sampling rate                            : 48.0 KHz
Bit depth                                : 16 bits
Compression mode                         : Lossy
Stream size                              : 321 MiB (7%)
Language                                 : Russian

Audio #2
ID                                       : 3
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Codec ID                                 : A_AC3
Duration                                 : 1h 40mn
Bit rate mode                            : Constant
Bit rate                                 : 448 Kbps
Channel(s)                               : 3 channels
Channel positions                        : Front: L R,   Side: C
Sampling rate                            : 48.0 KHz
Bit depth                                : 16 bits
Compression mode                         : Lossy
Stream size                              : 321 MiB (7%)
Language                                 : English

Text #1
ID                                       : 5
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : English

Text #2
ID                                       : 6
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Bulgarian

Text #3
ID                                       : 7
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Czech

Text #4
ID                                       : 8
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Dutch

Text #5
ID                                       : 9
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Finnish

Text #6
ID                                       : 10
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Greek

Text #7
ID                                       : 11
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Hungarian

Text #8
ID                                       : 12
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Norwegian

Text #9
ID                                       : 13
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Polish

Text #10
ID                                       : 14
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Romanian

Text #11
ID                                       : 15
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Swedish

Text #12
ID                                       : 16
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : Russian

EDIT: After looking around, I suspect it might be the 16 reference frames thing.


BR
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#2
16 reference frames, it will never play correctly. Stop using such non-standard encodings.
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