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Old 19th August 2009, 13:27   #1841  |  Link
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Originally Posted by SeeMoreDigital View Post
But those versions of DGAVCDec only work with (certain types of) Nvidia graphics cards.
Ah yes, I had forgot about the non nvidia versions.

Sorry ministrix, the version I linked to will only work with a nvidia card that has vp2 or greater.
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Old 19th August 2009, 13:34   #1842  |  Link
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You can either concatenate the M2TS files before loading into DGAVCIndex or you can demux to one file using tsmuxer.
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Old 21st August 2009, 02:12   #1843  |  Link
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I have noticed the loss of some kb when I demux video, compared to original stream. What is the reason?
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Old 21st August 2009, 02:16   #1844  |  Link
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When you demux you no longer have the other elementary streams, such as audio. You also no longer have the muxing overhead.

Last edited by Guest; 21st August 2009 at 02:31.
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Old 21st August 2009, 02:42   #1845  |  Link
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When you demux you no longer have the other elementary streams, such as audio. You also no longer have the muxing overhead.
In fact it's when I just put a .264 it happens. For example, when I put the stream out of a mkv or a mp4 (like as I did for test the inloop deblocking : put out from my mkv with mkvextract)
So it remains some overhead?
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Old 21st August 2009, 03:19   #1846  |  Link
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Your question is so vague it's hard to make sense of it.

Case 1: You have just an AVC elementary stream in the MKV. You demux the AVC stream and compare the size of the MKV to the size of the demuxed AVC stream.

Case 2: You start with an AVC elementary stream, put it into an MKV, extract it and then compare the extracted AVC stream to the original AVC stream.

Case 3: ...

You have to tell me exactly what you are doing.

Last edited by Guest; 21st August 2009 at 04:00.
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Old 21st August 2009, 03:42   #1847  |  Link
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I have test the deblock=false in the dgavcdec filter. For that, that I have extract the .264 stream out the mkv I made.
I puted this .264 file in dgavcindex and use demux video stream.
Result: a loss of some kb.
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Old 21st August 2009, 03:48   #1848  |  Link
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I puted this .264 file in dgavcindex and use demux video stream.
It makes no sense to demux from an elementary stream. Why are you doing that?

If you post the AVC stream that you input into DGAVCIndex I can try to identify why the operation is not acting as a no-op.

Last edited by Guest; 21st August 2009 at 04:01.
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Old 21st August 2009, 03:58   #1849  |  Link
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OK, I duplicated it and here is the explanation.

DGAVCIndex maps 00 00 00 01 xx start codes to 00 00 01 xx. According to my reading of the spec and my testing, this is not a problem, and in fact no-one has ever reported any problem with it.

If you have a compelling reason why the original extra 00 bytes should be retained, I can consider outputting them.

Last edited by Guest; 21st August 2009 at 04:13.
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Old 21st August 2009, 04:15   #1850  |  Link
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I know "demux" word, but I did it, point. I'm curious, that's all.
Well, so curious I just tried with .264 stream directly encoded by X264 (not extract out of a mkv).
There is a negligible loss of 0.014% but a loss at all.
That was my question.
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Old 21st August 2009, 04:21   #1851  |  Link
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There is a negligible loss of 0.014% but a loss at all.
It's actually a gain, because you have a smaller file size with exactly the same video content.
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Old 21st August 2009, 04:31   #1852  |  Link
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It's actually a gain, because you have a smaller file size with exactly the same video content.
In fact, I noticed that a long time ago and use this "method" for, in my mind, have better compatibility with dgavcdecode.
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Old 21st August 2009, 04:40   #1853  |  Link
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In fact, I noticed that a long time ago and use this "method" for, in my mind, have better compatibility with dgavcdecode.
There is no issue of compatibility. The specification for NALU parsing supports both forms of NALU delimiters I described, and my tools obviously implement the spec. Any other tool that correctly implements the spec will also have no problem with either method.
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Old 23rd August 2009, 20:03   #1854  |  Link
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Wrong thread if you're talking about the NV version.

Post a link to the first two source fragments. I assume you mean you have a lot of source files, and not one that you split in your script. If that's not so, explain it and give your script.

Please reply in the correct thread.
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Old 27th August 2009, 08:28   #1855  |  Link
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I have this Sony AVCHD handycam (Model: HDR-SR12). This is a hard-drive camera. The video files have an extension *.mts

I am currently using DGAVCIndex 1.0.9 to generate *.dga which really works fine. I then serve this in my avisynth. This version of DGAVCIndex cannot process more thn 1 .mts file.

Is there a version of DGAVCIndex available which can process multiple .mts file and generate one .dga file please?

Many thanks in advance.
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Old 27th August 2009, 13:27   #1856  |  Link
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Yes, DGAVCDecNV can do it, but it requires a supported Nvidia graphics card.

http://neuron2.net/dgavcdecnv/dgavcdecnv.html

As a workaround for DGAVCDec you can merge the M2TS files using DOS COPY /b.
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Old 28th August 2009, 00:15   #1857  |  Link
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Yes, DGAVCDecNV can do it, but it requires a supported Nvidia graphics card.
thanks a lot..unfortunately I do not have a Nvidia graphics card. I am already merging the .mts files however it's tiem consuming and takes up double the space.

Thanks again for your input.
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Old 30th August 2009, 09:17   #1858  |  Link
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Whether add use DDS2 (haali avss.dll fast & HQ) optionally instead of libavcodec is possible?
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Last edited by Varies; 31st August 2009 at 07:08.
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Old 28th September 2009, 18:26   #1859  |  Link
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Artefacts with version 1.0.9

I have a problem with artefacts appearing in a BBC iPlayer download. I have created an MKV of the offending section of original video (a zoom on a photograph) and included the script that shows this problem:

http://www.mediafire.com/?mizmxjozkzu

See the artefacts that suddenly disappear at frame 241.

Using directshowsource doesn't produce this problem.

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Old 28th September 2009, 18:33   #1860  |  Link
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Can't duplicate it with your sample. It works perfectly for me.

I demuxed the video from the MKV and made a project, etc.
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