View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000363 | madVR | bug | public | 2015-12-02 03:01 | 2018-01-15 09:03 |
| Reporter | cyberbeing | Assigned To | madshi | ||
| Priority | normal | Severity | major | Reproducibility | always |
| Status | closed | Resolution | unable to reproduce | ||
| Platform | x64 | OS | Windows 7 SP1 | OS Version | 7601 |
| Summary | 0000363: Very High Render Times with DXVA2-Native & Movable Subtitles | ||||
| Description | DXVA2-Native + Movable Subtitles causes a large performance overhead. Originally reported by Nullack with his GTX960 in the XySubFilter thread: http://forum.doom9.org/showpost.php?p=1748276&postcount=836 | ||||
| Steps To Reproduce | *Enable DXVA2-Native in LAV Filters. *Playback a 1080p24 video with SRT subtitles which XySubFilter 3.1.0.746 would flag as movable. *Scale the video to 2160p and open CTRL+J stats. *Maximum render time will be ~42ms higher than normal *Avg render time time will be around double normal | ||||
| Additional Information | Issue occurs even if no black bars exists, if subtitles are flagged as movable. Issue does not occur with DXVA2 Copy Back or Software Decoding. Issue does not occur if XySubFilter flags as subtitles as unmovable. | ||||
| Tags | No tags attached. | ||||
| madVR Version | 0.89.17 | ||||
| Media Player (with version info) | MPC-HC 1.7.10.28 | ||||
| Splitter (with version info) | LAV 0.67.0.3 | ||||
| Decoder (with version info) | LAV 0.67.0.3 | ||||
| Decoding | DXVA2 Native | ||||
| Deinterlacing | none (progressive) | ||||
| DXVA2 Scaling Active | no | ||||
| Aero / Desktop Composition | On | ||||
| Problem occurs with mode | fullscreen exclusive mode | ||||
| GPU Manufacturer | NVidia | ||||
| GPU Model | GTX770 | ||||
| GPU Driver Version | 359.00 | ||||
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I'm sorry for the extremely late reply. I've tried to reproduce this now, but couldn't. Somehow my Nvidia GPU always gets slower after a bit of playing. I suppose clocks are going down if I don't use "expensive" algorithms. But I could not notice big differences between software and DXVA decoding, XySubFilter active/inactive etc. If you're still there, and still have interest in this, could you please check if the problem still occurs for you with the latest madVR + LAV + MPC-HC builds? If so, please create an empty file or folder named "ShowRenderSteps" in the madVR folder. Afterwards the madVR OSD should tell you which of the rendering steps consumes how much time. Maybe this time you can figure out which of the rendering steps is the problem? |
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I'm currently unable to test this, since I no longer own a display supporting 2160p, and I remember scaling to such a resolution being an important aspect in reproducing it (i.e. problem got worse the higher the resolution). You'd probably have better luck just asking if anybody with a 4K display in madVR thread is able to reproduce this now when watching 1080p video with SRT subs using DXVA2-Native. Otherwise feel free to close the issue. If the problem ever resurfaced, I'm sure it would be easily noticed and reported again. |
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Ok, thanks. And good to know you're still around. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2015-12-02 03:01 | cyberbeing | New Issue | |
| 2018-01-14 20:33 | madshi | Note Added: 0002098 | |
| 2018-01-14 20:33 | madshi | Assigned To | => madshi |
| 2018-01-14 20:33 | madshi | Status | new => feedback |
| 2018-01-15 05:19 | cyberbeing | Note Added: 0002120 | |
| 2018-01-15 05:19 | cyberbeing | Status | feedback => assigned |
| 2018-01-15 05:20 | cyberbeing | Note Edited: 0002120 | |
| 2018-01-15 09:03 | madshi | Note Added: 0002122 | |
| 2018-01-15 09:03 | madshi | Status | assigned => closed |
| 2018-01-15 09:03 | madshi | Resolution | open => unable to reproduce |
