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9th June 2011, 14:49 | #21 | Link |
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Unfortunately alot of encoding applications allow people to generate MPEG-4 SP/ASP encodes at "any old" mod value
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10th June 2011, 02:35 | #22 | Link | |
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I'm having him check out a video, 720x400 square pixel, that is 23.976 fps. |
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11th June 2011, 10:08 | #25 | Link |
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Well, if the 720x480 16:9 and 4:3 anamorphic samples I gave you did not work with the Toshiba. No MPEG-4 SP/ASP .AVI contained encode will...
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15th June 2011, 07:25 | #26 | Link | |
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720x480 anamorphic 16:9 does not play letterboxed. It plays as if the video was 4:3, i.e., does nothing but send it out the composite video. A 720x400 square pixel encoding plays fine. |
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15th June 2011, 07:32 | #27 | Link | |
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And just what is normal? It is easy to find specs on encoding for DVDs, but pretty much impossible for DivX. And what settings might those be? The program, HDConvertToX, has lots of settings, including anamorphic. |
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15th June 2011, 08:03 | #28 | Link |
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If anamorphic is causing problems, don't use it.
It advisable to use square pixels when encoding in xvid and I think the same goes for divx. I've been doing backups of my DVDs and satellite dvb-s recordings with AutoGK and sometimes with MeGUI and never have I had any troubles with playback on a standalone device - Philips dvp3260. AutoGK always uses square pixels but MeGUI has also anamorphic function but, for standalone compatibility, it is not recommended when encoding in xvid. Last edited by kalehrl; 15th June 2011 at 20:15. |
15th June 2011, 16:43 | #29 | Link | |
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@MrVideo
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To the best of my knowledge standalone players can either have the core "DivX" logo or the "DivX Ultra" logo. DivX Ultra supports anamorphic, menus, chapters and subtitles. But you can only author such a file using their own "DivXAuthor" software or TMPGenc Authoring Works. For full compatibility with all DivX capable standalones I recommend to use the settings which their own "DivX Converter" uses. Those are: 1. Use the "Home Theater" profile 2. Square Pixels. Do not encode anamorphic. 3. Always deinterlace the source. 4. 2-pass ABR encoding. Do not use quality based encoding. 5. Audio should be MP3 CBR. Do not use VBR. (AC3 is also allowed, but some standalones do not like it) Cheers manolito Last edited by manolito; 15th June 2011 at 20:18. |
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15th June 2011, 18:14 | #30 | Link |
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MPEG-4 SP/ASP hardware player history lesson...
Given that DivX developed their first player "Certification" long before "aspect ratio signalling" (ARS) detection was conceived, there was no requirement for player manufacturers to include support for it. Indeed, SigmaDesigns A/V decoding chip-sets included ARS detection support for MPEG-4 SP/ASP streams placed within the .MP4 container, a year or so before adding support for MPEG-4 SP/ASP streams placed the .AVI container! Hardware player manufacturers who sold players based around MediaTek's MT1389xx A/V decoding chip-set(s) offered better ARS support for .AVI contained files than any other A/V decoding chip-set manufacturer. Although, many A/V decoding "chip-set" manufacturers developed chip-sets that supported ARS detection for MPEG-4 SP/ASP streams placed within the .AVI container, not all "player" manufacturers could be bothered to enable it. And there's no-way they ever will now! Xvid, offered the ability to generate MPEG-4 SP/ASP streams with ARS "years" before DivX. Xvid also created a direct-show decoder filter capable of decoding MPEG-4 SP/ASP streams with ARS "years" before DivX. Cheers
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15th June 2011, 21:07 | #32 | Link | |||||
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16th June 2011, 14:40 | #34 | Link | |
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1. It does not allow B-VOPs together with interlacing. 2. To retain the interlacing we'd have to keep the vertical resolution (576/480). Since the maximum horizontal resolution for “PAL” material is 720, we'll have a distorted AR with such clips (due to lack of widespread support for anamorphic signaling). Sure, we can create interlaced clips using other resolutions (by smart-bobbing before resizing and re-interlacing the clip after resizing), but does that really make sense? 3. Some players seem to have issues with interlaced MPEG-4 despite being DivX-certified. E.g. my Philips DVP3142/12 (also based on the Zoran Vaddis 966 chipset) doesn't like TFF with 720x576 @ 25 FPS, but with 720x480 @ 29.97 FPS it works just fine. Last edited by Jawor; 7th July 2011 at 13:16. |
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16th June 2011, 16:44 | #35 | Link |
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Personally speaking...
Given the relative low cost of todays "high-def" capable network media players along with their ability to play just about any "popular" audio, video and container format. I'm of the opinion it's not worth the effort trying to find specific encoding options to accommodate these "low spec/weak" players!
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Last edited by SeeMoreDigital; 13th July 2011 at 09:22. |
7th July 2011, 15:58 | #37 | Link | |
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The converter I use is Divx Plus Converter (yes, the one from Divx Inc). The real problem with other converters is that they are not really Divx-compatible. If you encode using high quality settings (like me), they are almost certainly going to produce a bitrate spike that exceeds 4096Kbps for more than one second, thus causing some players to freeze or skip. Even AutoGK, which has compatibility profiles for the ESS and MTK chipsets, if you select "100%" in the "target quality" setting, it tells you that "some compatibility parameterers are going to be ignored". Of course, if you encode using low bitrates (quantizer 4 or just fitting a 2hour movie in 1CD/2CD), then this problem doesn't show itself, so you may also use AutoGK. |
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7th July 2011, 16:18 | #38 | Link | |
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7th July 2011, 16:31 | #39 | Link | |
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Now a part of Macrovision
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