View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000508 | madVR | bug | public | 2017-10-06 22:17 | 2017-10-07 12:05 |
| Reporter | Tobiwan | Assigned To | madshi | ||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | closed | Resolution | no change required | ||
| Platform | PC | OS | W10 Home 1703 | OS Version | 15063.632 |
| Summary | 0000508: Seeking on low quality videos | ||||
| Description | Seeking inside low quality videos (like 856x480) are broken, after a jump it needs 3-5sec to rebuild the picture, the sound goes on and the picture freezes. Decoder queue overflow on every seeking freeze, default 16 goes up to 19/20 and drops down to 16 after freeze. Increase the queue size does not help, the overflow happens again. It only happens on videos with low quality or resolution, it happens not on any HD stuff 720p and 1080p. | ||||
| Steps To Reproduce | Example for problem video file: Format : MPEG-TS File size : 703 MiB Duration : 3 h 26 min Overall bit rate mode : variabel Overall bit rate : 475 kb/s FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty Video ID : 256 (0x100) Menu ID : 1 (0x1) Format : AVC Format/Info : Advanced Video Codec Format profile : Main@L3 Format settings, CABAC : Ja Format settings, RefFrames : 3 frames Codec ID : 27 Duration : 3 h 26 min Bit rate mode : konstant Nominal bit rate : 500 kb/s / 500 kb/s Width : 640 Pixel Height : 360 Pixel Display aspect ratio : 16:9 Frame rate : 29,970 (30000/1001) FPS Standard : NTSC Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : progressiv Bits/(Pixel*Frame) : 0.072 Writing library : x264 core 144 Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=24 / lookahead_threads=2 / sliced_threads=0 / slices=1 / nr=0 / decimate=1 / interlaced=0 / minigop=0 / stitchable=1 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=cbr / mbtree=1 / bitrate=500 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=500 / vbv_bufsize=500 / nal_hrd=cbr / filler=1 / ip_ratio=1.40 / aq=1:1.00 Color range : Limited Color primaries : BT.601 NTSC Transfer characteristics : BT.601 Matrix coefficients : BT.601 | ||||
| Additional Information | Even with the lowest settings, chroma cubic and image DXVA2 the issue is still there, it does not make a differences if I seek with a low profile or a high profile with NGU AA on low quality videos. The setting from MPC-HC with seeking/keyframe change has no impact too. I tried CUVID and DXVA11, super-xbr, NGU AA / Sharp, No doubling... the rendering is smooth and fast. No drops or glitches. | ||||
| Tags | No tags attached. | ||||
| madVR Version | v0.92.4 (but the issue was in versions before too) | ||||
| Media Player (with version info) | MPC-HC (Nightly 64-bit) 1.7.13.112 | ||||
| Splitter (with version info) | LAV Splitter 0.70.2.79 | ||||
| Decoder (with version info) | LAV Video Decoder 0.70.2.79 | ||||
| Decoding | DXVA2 Copyback | ||||
| Deinterlacing | none (progressive) | ||||
| DXVA2 Scaling Active | no | ||||
| Aero / Desktop Composition | Off | ||||
| Problem occurs with mode | all modes | ||||
| GPU Manufacturer | NVidia + Intel | ||||
| GPU Model | MSI NVIDIA GTX 1070 Gaming X 8G + i7-7700K | ||||
| GPU Driver Version | 385.69 | ||||
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Does it only happen with madVR, or also with other renderers? |
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It happens too with Video Mixing 9 and Enhanced. But interesting is, the MPV-Player can seek on the same video without any problems, no freezes or something with high quality profile active. I upload a screenshot from the stats with the overflow of the decoder queue. |
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If this happens with VMR9 and EVR, too, then this very obviously is not a bug in madVR, but a problem in either the splitter or decoder. You need to talk to nevcairiel (the LAV Decoder/Splitter dev) about this. I can't fix problems in LAV. |
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Thanks for the info! I will create a ticket at nevcairiel's github for that issue and link to that bug ticket here for more info, maybe he will find a fix for the problem. |
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He may need a small video sample so he can reproduce the problem on his own PC. |
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That's the ticket https://github.com/Nevcairiel/LAVFilters/issues/165 Unfortunately nevcairiel can't do anything. You can close the ticket here. I will play that type of files with MPV to avoid that problem. :) |
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Yeah, either that, or you could remux to mkv with mkvtoolnix. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2017-10-06 22:17 | Tobiwan | New Issue | |
| 2017-10-06 22:54 | madshi | Note Added: 0001836 | |
| 2017-10-07 09:08 | Tobiwan | File Added: Stats.PNG | |
| 2017-10-07 09:12 | Tobiwan | Note Added: 0001837 | |
| 2017-10-07 09:43 | madshi | Note Added: 0001838 | |
| 2017-10-07 09:56 | Tobiwan | Note Added: 0001839 | |
| 2017-10-07 09:58 | madshi | Note Added: 0001840 | |
| 2017-10-07 09:58 | madshi | Note Edited: 0001840 | |
| 2017-10-07 11:04 | Tobiwan | Note Added: 0001841 | |
| 2017-10-07 12:05 | madshi | Note Added: 0001842 | |
| 2017-10-07 12:05 | madshi | Status | new => closed |
| 2017-10-07 12:05 | madshi | Assigned To | => madshi |
| 2017-10-07 12:05 | madshi | Resolution | open => no change required |
