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13th March 2015, 12:46 | #13061 | Link |
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My bench works in queue 1.
Copying is done by simple windows function CopyFileEX with COPY_FILE_NO_BUFFERING flag. (https://msdn.microsoft.com/en-us/lib...=vs.85%29.aspx) If think that eac3to also works in queue 1 hence big size of data is needed to saturate all channels in SSD's controller.
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13th March 2015, 15:05 | #13062 | Link | |
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or is implementing different chunk sizes a lot of work? 16MB default and an optional -1MB flag would probably do just as well then... or 16 default and 8MB, I don't think there will be many sources with more than 200 tracks... you could also just let eac3to decide, if a source has more than 100 tracks -> use 8MB, more than 200 tracks -> use 4MB... though I do think 16MB default and flags to let the user decide would be the best thing, especially for people that use most of their RAM in normal use and don't always want or aren't able to spare more for eac3to.. anyways, most times you got 3-20 tracks, so 16MB default would almost always be a good thing... Last edited by Q-the-STORM; 13th March 2015 at 15:17. |
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14th March 2015, 11:31 | #13063 | Link |
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The buffer size could also be computed at run time, according to the number of streams and available free RAM. IMO, it's the best option, and it should ideally be available if the idea of an option with several buffer sizes is implemented, as an additional "auto" size.
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14th March 2015, 11:46 | #13065 | Link | ||
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------- About eac3to performance: It's a bit unfortunate that everybody is talking about chunk sizes now, without looking at anything else. I don't think the chunk size is the problem, nor the key to salvation. As I wrote earlier: Quote:
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14th March 2015, 18:21 | #13066 | Link | |
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Code:
General Unique ID : 245455972442929439196667259541358469211 (0xB8A919C9CFCD744DB899E6E03D99605B) Complete name : C:\Users\Dave\Desktop\Drive-AVC-remux.mkv Format : Matroska Format version : Version 4 / Version 2 File size : 2.44 GiB Duration : 10mn 15s Overall bit rate mode : Variable Overall bit rate : 34.0 Mbps Encoded date : UTC 2015-03-14 16:43:32 Writing application : mkvmerge v7.2.0 ('On Every Street') 32bit built on Sep 13 2014 15:42:11 Writing library : libebml v1.3.0 + libmatroska v1.4.1 DURATION : 00:10:15.031000000 NUMBER_OF_FRAMES : 14746 NUMBER_OF_BYTES : 2617507214 _STATISTICS_WRITING_APP : mkvmerge v7.2.0 ('On Every Street') 32bit built on Sep 13 2014 15:42:11 _STATISTICS_WRITING_DATE_UTC : 2015-03-14 16:43:32 _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 : 4 frames Codec ID : V_MPEG4/ISO/AVC Duration : 10mn 15s Bit rate mode : Variable Bit rate : 33.4 Mbps Maximum bit rate : 37.0 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 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) : 0.671 Stream size : 2.39 GiB (98%) Default : Yes Forced : No VC-1.mkv Code:
General Unique ID : 178944820121177913025717090745631236997 (0x869F84CC91034C4D9ED0E1E12775E385) Complete name : C:\Users\Dave\Desktop\Last_Man_Standing_VC1_10Min-remux.mkv Format : Matroska Format version : Version 4 / Version 2 File size : 1.70 GiB Duration : 10mn 0s Overall bit rate : 24.3 Mbps Encoded date : UTC 2015-03-14 16:33:38 Writing application : mkvmerge v7.2.0 ('On Every Street') 32bit built on Sep 13 2014 15:42:11 Writing library : Lavf52.110.0 Video ID : 1 Format : VC-1 Format profile : Advanced@L3 Codec ID : V_MS/VFW/FOURCC / WVC1 Codec ID/Hint : Microsoft Duration : 10mn 0s Bit rate : 23.8 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.479 Stream size : 1.66 GiB (98%) Default : Yes Forced : No DURATION : 00:10:00.058000000 NUMBER_OF_FRAMES : 14387 NUMBER_OF_BYTES : 1822959885 _STATISTICS_WRITING_APP : mkvmerge v7.2.0 ('On Every Street') 32bit built on Sep 13 2014 15:42:11 _STATISTICS_WRITING_DATE_UTC : 2015-03-14 16:33:38 _STATISTICS_TAGS : BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
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14th March 2015, 18:33 | #13068 | Link |
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What do you mean? Audio only?
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16th March 2015, 16:25 | #13069 | Link |
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I have a file that eac3to erroneously detects as being HDCD-encoded. It's a 24-bit 5.1-channel FLAC (though most samples are zero-padded 16-bit). The problem with this is that HDCD decoding appears to be force-enabled when converting to a lossy format, so attempts to transcode to AC3 always fail with the error "there is no HDCD data to decode" regardless of whether I pass in -decodeHdcd or not.
First few seconds of the file that exhibits the problem: https://mega.co.nz/#!59kX0ASb!MwwBiF...MSAiEs26I1rBHk |
16th March 2015, 19:22 | #13070 | Link | |
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Yes, some file with a similar file length (e.g. some DTS-HD or TrueHD track muxed to MKV or so) without a video track. Just to check if video stream parsing might be responsible for the slowdown.
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17th March 2015, 21:15 | #13071 | Link |
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what to think of this? http://forum.timramich.com/viewtopic.php?f=16&t=26
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17th March 2015, 21:54 | #13072 | Link |
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It's known that the DTS encoding suite can decode 7.1 channels losslessly. But that's a copy protected software and not easy to remote control from eac3to. So it's not really a good option for eac3to. There might be an open source decoder available soon, though, which might solve this problem. Or maybe not, we'll have to wait and see...
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17th March 2015, 22:37 | #13073 | Link | |
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Quote:
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18th March 2015, 00:50 | #13074 | Link | |
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Its fun to see what other "reference" decoders do with strange-setup though. Somehow they postprocess the channels to make a "normal" surround setup out of them, because they assume any software couldn't possibly comprehend the extra front-surround channels.
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18th March 2015, 01:36 | #13075 | Link | |
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Yeah. And some ArcSoft versions even produced corrupted sound data... |
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18th March 2015, 09:51 | #13076 | Link | |
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Did a test with a small track I have encoded with MA-suite to both "normal" setup and "strange setup", seems to work great except there seems to be one extra DTS-frame at the end of the "strange setup"-track. Don't know if that is something added by the MA-suite or if MakeMKV add an extra though. Thank you for the info anyway! Looking forward to the new codec! EDIT:From Foobar: Differences found in compared tracks. Comparing: "N:\Decode.test.reencoded.to.standard.setup.flac" "N:\title00_track2_eng_DELAY 0ms.flac" Length mismatch : 4:18.154667 vs 4:18.165333, 12391424 vs 12391936 samples. Compared 12391424 samples, discarded last 512 samples from the longer file. No differences in decoded data found within the compared range. Last edited by Nebudchanezzer; 18th March 2015 at 09:54. |
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18th March 2015, 22:13 | #13077 | Link |
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...just a tiny small remark, not really very critical :
for me it is inconvinient that "-progressnumbers" gives a line feed after each number; I would prefer, if the Output would remain in the same line (CR without LF)... |
18th March 2015, 22:48 | #13078 | Link |
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progressnumber switch was added for gui makers. It is easier to capture output if you have new line.
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18th March 2015, 23:15 | #13079 | Link |
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It is impossible to change the --progressnumbers behaviour. It is used by many GUIs, and even a very small change would break them.
If you want only a single line of output, do not specify the --progressnumbers argument, and watch the progress bar.
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