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17th October 2013, 16:59 | #61 | Link |
もこたんインしたお!
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The HEVC-in-FLV hack (or actually, hacks) is/are completely unrelated to Adobe in any way or form, and as we now have at least somewhat official ways of putting HEVC into containers, I would most definitely recommend people to refrain from using or implementing this hacked up mapping for public consumption. FLV is simple to hack things into, yes. But using possible values that Adobe might use in the future sounds like a big pot of problems.
(I still do wish that ISO/IEC would finally do their ballot and make 14496-15, 3rd edition, official -- the draft specification hasn't had changes done to it for months by now)
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17th October 2013, 18:38 | #63 | Link | |
Spinner of yarns
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So, The Flash Player can't play them at all but they are called FLV? Retarded!
Quote:
As far as I read the change in MPC-HC BE, Strongene imitates the AVCDecoderConfigurationRecord not a draft of HEVCDecoderConfigurationRecord. The ffmpeg/libav's HEVC decoder works only when extradata is encoded as HEVCDecoderConfigurationRecord (14496-15 format) or concatenations of parameter sets with start codes (Annex B format).
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僕と契約して、L-SMASH developerになってよ! L-SMASH | L-SMASH Works | Opus-in-ISOBMFF specification and reference software Last edited by VFR maniac; 17th October 2013 at 18:41. |
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20th October 2013, 02:43 | #65 | Link |
SuperVirus
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Can someone please say if the AVIs and VfW-based MKVs created through Graphstudio from the Strongene HEVC source filter
are or are not standard-compliant? { for the uninformed: sample file(s) @ http://optavisse.com/2013/07/11/hevc-in-avi-why-not/ } Last edited by filler56789; 20th October 2013 at 04:05. Reason: add link |
20th October 2013, 08:10 | #66 | Link |
Spinner of yarns
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There is no official specification of HEVC-in-AVI and VfW-based HEVC as there is no official specification of AVC-in-AVC and VfW-based AVC.
VfW is problematic for B-frames without hacks because of 1-frame-in-1-frame-out. AVI is problematic for seek when any B-frame is present because AVI has no concept of presentation and/or composition timestamp.
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僕と契約して、L-SMASH developerになってよ! L-SMASH | L-SMASH Works | Opus-in-ISOBMFF specification and reference software Last edited by VFR maniac; 20th October 2013 at 08:15. |
20th October 2013, 08:31 | #67 | Link | |||
SuperVirus
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Quote:
Quote:
At least according to http://guru.multimedia.cx/avi-and-b-frames/, Quote:
Last edited by filler56789; 20th October 2013 at 08:34. Reason: spelling |
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20th October 2013, 08:45 | #68 | Link |
Spinner of yarns
Join Date: May 2009
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The point is that handling of AVI with frame/picture-reordering for presentation is CODEC specific.
It is out of ranges of container. This is already problematic from a viewpoint of container. Also, presentation/output order of AVC and HEVC depends on POC not frame/picture types unlike the MPEG-1/2 Video and VC-1. For instance, IDR-picture is output after subsequent P-pictures in coded order when those P-pictures have negative POC.
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僕と契約して、L-SMASH developerになってよ! L-SMASH | L-SMASH Works | Opus-in-ISOBMFF specification and reference software Last edited by VFR maniac; 20th October 2013 at 09:02. |
20th October 2013, 10:19 | #69 | Link |
SuperVirus
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^ Again, thanks for answering.
I had to ask, because the most recent version of the DirectShow filter "MPCVideoDec.ax" doesn't understand HEVC-in-AVI: http://forum.doom9.org/showthread.ph...29#post1648629 |
21st October 2013, 00:33 | #70 | Link | |
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Quote:
It worked okay for VC-1, but I was one of the advocates against using ASF for Smooth streaming with H.264 because the worst-case mismatches given a 2-second GOP and up to 16 B-frames were crazy. I think trying to stuff HEVC into old file formats would mainly be opting into pain. And what would the point even be again? |
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21st October 2013, 00:52 | #71 | Link | ||
SuperVirus
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Quote:
thanks for the information Quote:
Last edited by filler56789; 21st October 2013 at 00:55. Reason: typo |
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decoder, encoder, h.265, hevc, open-source |
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