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10th September 2010, 01:37 | #2561 | Link |
Guest
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Autocrop works fine on your sample. Did you try it?
I will wait to look at the audio problem until you assure me the reported problems happen *with the sample you uploaded*. Also, can you please give me the command line to demux the track using eac3to so that I can do a binary compare? Thanks. Last edited by Guest; 10th September 2010 at 01:44. |
10th September 2010, 06:39 | #2563 | Link | |
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Quote:
If you try to autocrop on the first (usually all black) frame it will crop all of it and give you the result you saw. |
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10th September 2010, 07:49 | #2564 | Link | |
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Quote:
So it only happens of you change start and end in DGNVIndex, example output from eac3to: Code:
X:\Video_Encoding\Apps\eac3to-3.24>eac3to.exe x:\test_cut_track.ac3 x:\del.m4a AC3, 5.1 channels, 0:00:45, 448kbps, 48kHz, dialnorm: -29dB The Nero decoder doesn't seem to work, will use libav instead. Removing AC3 dialog normalization... Decoding with libav/ffmpeg... Remapping channels... Reducing depth from 64 to 32 bits... Encoding AAC <0.50> with NeroAacEnc... This track is not clean. eac3to processing took 1 second. Done. X:\Video_Encoding\Apps\eac3to-3.24>eac3to.exe x:\uncut.ac3 x:\del.m4a TrueHD/AC3, 5.1 channels, 48kHz, dialnorm: -29dB (embedded: AC3, 5.1 channels, 448kbps, 48kHz, dialnorm: -29dB) Extracting TrueHD stream... Removing TrueHD dialog normalization... Decoding with libav/ffmpeg... Encoding AAC <0.50> with NeroAacEnc... The original audio track has a constant bit depth of 24 bits. eac3to processing took 1 second. Done. The auto-crop "issue" only happened when on the first frame, i assume that is because the entire first frame is pure black? Edit: and yes, the audio issue also occurs on the sample i sent. The eac3to output above is from the sample. Last edited by mastrboy; 10th September 2010 at 07:50. Reason: more info... |
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10th September 2010, 07:55 | #2565 | Link |
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Yes, you must navigate to a frame showing a distinction between the video and the black bars, because the software scans in from the edge looking for the first non-black pixels. The users manual says this:
"For best results, navigate to a frame with high contrast between the video and the black bars before entering the cropping dialog." A fully black frame will have rather low contrast. Regarding the audio issue... You cut the sample you gave me or you cut from a larger sample? If the latter, then I'll need that larger sample, please. |
10th September 2010, 15:00 | #2567 | Link |
German doom9/Gleitz SuMo
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I decided to give ivfenc a try and make some WebM video. Downloaded the Blender movie 1080 PNGs (ED: 21 GB / BBB: 30 GB), created an AviSynth script with ImageSource ... but the reading of the source PNGs was already the slowest part of the recoding. So I created intermediate AVC files with very low compression and then used DGDecNV to read those as "good enough semi-original" to be delivered to ivfenc.
Funny result: For each of the 2 passes, I got a Windows XP error message that the encoder crashed, but it kept running and finished with an acceptable result. The console window (I called a "start *.bat" command for a batch file running both passes in a row) closed after closing both crash dialogs. Is that related to the issue e.g. stax76 mentioned - about "programs which open AviSynth scripts only briefly and close them without reading even one frame" which seems to crash one instance of DGDecNV? |
10th September 2010, 15:37 | #2568 | Link | |
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@mastrboy OK, thank you. I will try to duplicate it. |
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10th September 2010, 15:59 | #2569 | Link | |
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Apparently, nobody seems to know if this is a problem with Avisynth, DGDecodeNV or the Nvidia API. |
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10th September 2010, 16:05 | #2570 | Link | |
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10th September 2010, 16:12 | #2571 | Link |
German doom9/Gleitz SuMo
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I believe Nic has the sources available for his AviSynth mod of ivfenc.
And stax76 mentioned that something happened to him too because he used to open the Script in StaxRip only to obtain the dimensions and frame count first. But when not reading even one frame, and closing, DGDecNV used to crash ... if I remember correctly. |
10th September 2010, 16:26 | #2572 | Link | |
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Location: Barcelona
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Quote:
Set your breakpoint on "delete env;" at the end of _tmain. If you want to reproduce the problem, comment out these lines: "frame = clip->GetFrame(0, env);" (line 63) and "frame = clip->GetFrame(i, env);" (line 68) Have fun |
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10th September 2010, 16:32 | #2573 | Link |
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You should not be doing delete env!
That is the big no-no that we fixed in HCEnc and elsewhere. I'll look at it though and see if anything else is going on. Thanks for providing it. Last edited by Guest; 10th September 2010 at 16:34. |
10th September 2010, 16:41 | #2575 | Link |
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I'm a that gets lucky now and again.
BTW, just looking at the CUVID API and knowing from experience what I do about the behavior of CUVID I can't even imagine a mechanism by which this could be caused by the CUVID code. Last edited by Guest; 10th September 2010 at 16:44. |
10th September 2010, 17:45 | #2578 | Link |
Mr. Sandman
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ok, probably found a bug. Source: MKV file with x264 video and Vorbis (aoTuV b5) audio. DGIndexNV (2025) correctly indexes the MKV but even if the option is set it doesnt demux the audio.
mkvextract correctly extracts the audio track. is it a known problem or you need a clip?
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10th September 2010, 17:54 | #2580 | Link |
Mr. Sandman
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sure. ill upload it as soon as i finish sending the list (it may take a while... about 32.000 emails)
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