Hi,
In all Generic builds of LE 8.0 Alpha so far (including LibreELEC-Generic.x86_64-7.90.007), I experience temporary video corruption on some (not all) seeks - chapter skips and so forth. The corruption goes away after a couple of seconds, most likely when new keyframe comes. Sometimes it occurs even when starting a video from the beginning. It is not a deal-breaker, just a bit ugly.
Problem does not occur in LE 7.0 nor can I recall it happening in any OE build going back several years.
I suspect the cause is either the Nvidia Legacy driver (changed from LE 7) or perhaps some change in how Kodi 17 does seeks.
Hardware:
Atom 230 CPU, Nvidia Ion1 GPU (with 512MB allocated)
2x1GB ram
It happens with most H.264 videos I have tried. Mediainfo for the one in log:
(in this particular playback instance I do a lot of seeks but the corruption only occurs 2-3 times)
General
Unique ID : 177756097807476557198521264533524135091 (0x85BA944399705BB48E3990FEA82F3CB3)
Complete name : L:\array\Movies 4\movie (2016)\movie.mkv
Format : Matroska
Format version : Version 4 / Version 2
File size : 7.94 GiB
Duration : 2h 2mn
Overall bit rate : 9 292 Kbps
Encoded date : UTC 2016-10-18 00:35:45
Writing application : mkvmerge v8.3.0 ('Over the Horizon') 64bit
Writing library : libebml v1.3.1 + libmatroska v1.4.2
DURATION : 02:02:22.176000000
NUMBER_OF_FRAMES : 229443
NUMBER_OF_BYTES : 587374080
_STATISTICS_WRITING_APP : mkvmerge v8.3.0 ('Over the Horizon') 64bit
_STATISTICS_WRITING_DATE_UTC : 2016-10-18 00:35:45
_STATISTICS_TAGS : BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2h 2mn
Bit rate : 8 654 Kbps
Width : 1 920 pixels
Height : 808 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.233
Stream size : 7.24 GiB (91%)
Writing library : x264 core 148 r2705 3f5ed56
Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=8654 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language : English
Default : Yes
Forced : No
DURATION : 02:02:22.138000000
NUMBER_OF_FRAMES : 176035
NUMBER_OF_BYTES : 7938620453
_STATISTICS_WRITING_APP : mkvmerge v8.3.0 ('Over the Horizon') 64bit
_STATISTICS_WRITING_DATE_UTC : 2016-10-18 00:35:45
_STATISTICS_TAGS : BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 2h 2mn
Bit rate mode : Constant
Bit rate : 640 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 560 MiB (7%)
Language : English
Default : Yes
Forced : No
Menu
00:00:00.000 : en:00:00:00.000
00:08:26.548 : en:00:08:26.548
00:16:11.637 : en:00:16:11.637
00:32:38.290 : en:00:32:38.290
00:42:16.367 : en:00:42:16.367
00:52:22.264 : en:00:52:22.264
00:59:50.629 : en:00:59:50.629
01:12:05.530 : en:01:12:05.530
01:22:34.449 : en:01:22:34.449
01:33:00.950 : en:01:33:00.950
01:40:33.319 : en:01:40:33.319
01:47:38.994 : en:01:47:38.994
01:52:32.663 : en:01:52:32.663
01:55:41.351 : en:01:55:41.351
