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#12382 | Link |
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Join Date: Nov 2008
Posts: 454
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I would like to have this option, but only for VC-1i - not supported by FFMpeg, but FFDshow DXVA load to decode it = black screen.
But i didnt see reason why to disable interlaced h.264...
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#12383 | Link |
Audio & video enthusiast
Join Date: Nov 2009
Location: Finland
Posts: 74
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DXVA can decode interlaced material but it causes artifacs at least ATI's low-end cards, so it would be nice to have some option that interlaced material would not be decoded using DXVA.
I'm not sure which one AVC1 is, but my problems occur when video is interlaced and encoded using AVC1, I don't have any interlaced h.264 videos in my computer so I can't test does it cause same problems. Last edited by NiFa; 17th September 2010 at 07:51. |
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#12385 | Link | |
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#12386 | Link | |
Audio & video enthusiast
Join Date: Nov 2009
Location: Finland
Posts: 74
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Quote:
Here is video info: Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.1 Format settings, CABAC : Yes Format settings, ReFrames : 4 frames Format settings, GOP : M=2, N=32 Duration : 1h 7mn Bit rate mode : Variable Bit rate : 36.4 Mbps Maximum bit rate : 39.0 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 29.970 fps Scan type : MBAFF Is that encoded with h.264/AVC? @hoborg: thanks I wasn't sure which one it was, but that made it clearer. Last edited by NiFa; 17th September 2010 at 08:05. |
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#12387 | Link | |
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Join Date: Oct 2004
Location: France
Posts: 567
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#12388 | Link | |
Audio & video enthusiast
Join Date: Nov 2009
Location: Finland
Posts: 74
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#12391 | Link | |
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Join Date: May 2004
Posts: 5,351
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#12392 | Link |
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Join Date: May 2004
Posts: 5,351
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For PCM blu-ray discs, it's not sending it out through exclusive mode, so, you get whatever Windows audio is set to. (For example, my default is 7.1 96/24). That means a track like Kill Bill, for example, will play 7.1 96/24 even though in reality it's only 5.1 48/16. That's for Blu-rays. For MKV, I can't get any PCM audio at all. I believe that to be a splitter issue perhaps? Anyway, that's what I think Rica's referring to.
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#12393 | Link |
Audio & video enthusiast
Join Date: Nov 2009
Location: Finland
Posts: 74
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Here are 2 samples from the video which I get some artifact to picture they are not huge but you can see them.
Sample Sample 2 My graphigcard is HD4200, so I'm using really low-end card which shouldn't have power to handle interleced full-hd material as far as I know. Last edited by NiFa; 17th September 2010 at 14:00. |
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#12394 | Link | |
Registered Developer
Join Date: Mar 2010
Location: Hamburg/Germany
Posts: 10,344
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Quote:
Sample? ![]() On the general issue that Rica is referring to, people want bit exact output. This is not a problem for lossy formats, they should be decoded and output with the highest bit-depth possible, if the audio renderer supports it 32-bit int or even 64-bit float - the renderer should then dither it to 24-bit (or 16 on hardware that doesn't like 24) However with lossless formats, they should preferably not be touched at all. So a 16-bit PCM Stream should be send as 16bit to the audio renderer, or a 24bit FLAC send as 24-bit, you get the idea. This however does not work with ffdshow. When you tic multiple bit-depths on the output page, it'll always try to use the highest, in my experience. A similar discussion started on the MPC-HC thread a while back, for reference the conclusion: http://forum.doom9.org/showthread.ph...95#post1427095
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 17th September 2010 at 14:14. |
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#12395 | Link |
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Join Date: May 2004
Posts: 5,351
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Sorry, I know better. Still not fully awake yet.
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Audio ID : 2 Format : PCM Codec ID : 00001000-0000-0100-8000-00AA00389B71 Codec ID/Hint : Microsoft Duration : 1h 50mn Bit rate mode : Constant Bit rate : 4 608 Kbps Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 KHz Bit depth : 16 bits Stream size : 3.56 GiB (13%) Title : 3/2+1 Language : English
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#12396 | Link |
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Join Date: Mar 2010
Location: Hamburg/Germany
Posts: 10,344
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I was hoping for the actual MKV tag, probably something like "A_PCM/....". Something like mkvinfo (from mkvtoolnix) should tell you.
mkvmerge can also split files based on time code. Somethnig like this will split the first 30s mkvmerge -o sample.mkv --split 30s source.mkv Note that --split will split after all 30s, so it'll create alot of small chunks. But its the easiest way i know from the top of my head to get a sample out of it. Just stop it after ti created a chunk ![]()
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 17th September 2010 at 14:21. |
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#12398 | Link | |
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Join Date: May 2004
Posts: 5,351
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Quote:
Code:
(MKVInfo) | + Track number: 2 (MKVInfo) | + Track UID: 2 (MKVInfo) | + Track type: audio (MKVInfo) | + Enabled: 1 (MKVInfo) | + Default flag: 1 (MKVInfo) | + Forced flag: 0 (MKVInfo) | + Lacing flag: 1 (MKVInfo) | + MinCache: 0 (MKVInfo) | + Timecode scale: 1 (MKVInfo) | + Max BlockAddition ID: 0 (MKVInfo) | + Codec ID: A_MS/ACM (MKVInfo) | + Codec decode all: 1 (MKVInfo) | + Language: eng (MKVInfo) | + CodecPrivate, length 40 (format tag: 0xfffe) (MKVInfo) | + Default duration: 5.000ms (200.000 fps for a video track) (MKVInfo) | + Name: 3/2+1 (MKVInfo) | + Audio track (MKVInfo) | + Sampling frequency: 48000 (MKVInfo) | + Channels: 6 (MKVInfo) | + Bit depth: 16 I hope this helps!
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#12399 | Link |
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Join Date: May 2004
Posts: 5,351
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Just an FYI, the original MKV was made with MakeMKV 1.5.8. I don't know if that's relevant or not but I just thought I'd mention it.
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#12400 | Link | |
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Join Date: Feb 2005
Posts: 5,643
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Quote:
@Albain, could you have a look at this bug?
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