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January 22nd, 2010, 02:29 AM | #11 |
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To answer the question posted earlier by louiscar..
MP4 is simply a container (or wrapper as you call it) The fact the container used is MP4 has no relevance to being able to open them in Virtualdub. Virtualdub cannot open x264 (even in an avi container) as its a AVC codec. (ISO/IEC 14496-10 - MPEG-4 Part 10) Virtualdub only supports VFW codecs.(Directshow compatibile) (Xvid,Divx, etc) If you want a program simillar to virtualdub to edit x264 files (in an avi/MP4 container) then i suggest avidemux Its free and is pretty much the same as virtualdub functionality wise http://fixounet.free.fr/avidemux/
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February 26th, 2010, 04:57 AM | #12 |
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I like a free software.
They are powerful & efficient compare with other expensive software Thanks to Denaniel for this great tutorial. If you want to convert a multimedia files to any format, I currently use WinFF. |
March 13th, 2010, 04:11 AM | #13 |
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My issue with the MP4 codec is the lack of use for it outside the realm of the PC.
Several DVD players will play the DivX and xvid but spits mp4's out as fast as you put the disc with them on it in. I just don't see the better clarity with mp4 as was suggested and being able to put 10 hours of video on one disc and watch it on TV thru a cheap dvd player that is DivX compatible makes much more sense at least in my circumstance. |
June 8th, 2010, 01:38 AM | #14 | |
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I updated the first two posts in this thread to reflect recent changes in MeGUI and x264. The third post is now hopelessly out of date, and I will update it when I get a chance.
Quote:
But many newer Blu-ray standalone players can play mp4 and mkv files, and this is why I focused this tutorial on creating mp4 files that are bluray compatible. If you don't see the better clarity with mp4 over XviD and DivX, then either you haven't watched any high quality mp4 vids, like my recent upgrades of the Alpha France DVD's, or maybe you just need new glasses.
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June 12th, 2010, 09:23 PM | #15 |
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How to correct faulty aspect ratio
Let's say you made a mistake and encoded your vid with the wrong aspect ratio (AR), or you downloaded an .mp4 with a faulty aspect ratio, like this: [IMG]http://i46.*******.com/dbir6x.jpg[/IMG] This was made from a standard 4:3 PAL source, but it was encoded at 16:9 NTSC (anamorphic), so it looks squashed. The image is much wider than it should be. Thankfully, you can correct the aspect ratio without re-encoding. Follow the instructions in post #8 above until you get to the MP4 File Creation screen: [IMG]http://i46.*******.com/2ltlfrs.jpg[/IMG] Click on the .h264 file to highlight it, then click Properties In the Properties dialog, click the Pixels Aspect Ratio dropdown box and select 4:3 PAL (or whatever the correct AR should be for your vid). Click Ok [IMG]http://i46.*******.com/122nrf4.jpg[/IMG] Back on the MP4 File Creation screen, click Next Continue with the instructions in post #8 from the first screen that reads "Running process". Here is the same frame before and after: [IMG]http://i46.*******.com/dbir6x.jpg[/IMG] [IMG]http://i48.*******.com/2lxdytg.jpg[/IMG] original vid with faulty aspect ratio (AR) at left; fixed vid with corrected AR at right
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June 12th, 2010, 11:26 PM | #16 |
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How to encode audio to AAC
AAC = Advanced Audio Codec, and it is the preferred audio format in mp4 files Most newer DVD's have relatively high bitrate audio in .ac3 (Dolby Digital) or .dts format. Sometimes this audio is as high as 1536 Kbps with six or seven channels. If your source DVD has stereo (2 audio channels) in .ac3 format at 192 Kbps or less (use GSpot or MediaInfo to find out), or if you don't care about the size of your mp4, you can leave the audio unchanged and simply mux it with your x264 video. Technically, you should encode the audio to AAC to comply with the H.264 standard, but many bluray standalone players and software media players will play an mp4 file with .ac3 audio. You might want to make a clip with x264 video and .ac3 audio and test it in your player. But if the bitrate is any higher, or you want to comply with the H.264 standard to ensure your vid plays in everything it should, or if you want to reduce the size of your mp4 as much as possible, you can encode to AAC. MeGUI comes with two AAC encoders (enc_aacplus and faac), but to get the best quality audio, I recommend using Nero AAC Encoder, which is freeware easily found by googling, or you can try this link: http://www.videohelp.com/download/Ne...odec-1.5.1.zip Look for the neroAacEnc.exe file (it comes in a "win32" folder). You can put it anywhere you want and then point MeGUI to the file. You may want to create a new folder in the megui/tools folder, call it "nero aac encoder" and put the .exe file in there. Wherever you put the .exe, you need to point MeGUI to that location. With MeGUI open, click on the Options menu and choose Settings. Click on the External Program Settings tab. At the top, to the far right of neroAacEnc, click on the button with three dots (...) and navigate to the folder where you put neroAacEnc.exe. Then click Save. [IMG]http://i45.*******.com/66hr3b.jpg[/IMG] Downmixing to stereo If you have multichannel audio (up to 7 channels), and you want to convert it to two channels (stereo), or if your source is already stereo, then read this section. If you have multichannel and you want to keep all the channels, then see the section below "Encoding with multiple channels". When you downloaded or updated MeGUI, you were given a choice of audio profiles (also called presets), one of which is called "Nero AAC: NDAAC-HE-64Kbps". [IMG]http://i50.*******.com/bgydjl.jpg[/IMG] Start on the MeGUI Input tab. If you can find this profile in the dropdown box under Audio/Encoder settings, then click on Config and modify it as follows. If not, then choose Nero AAC: *scratchpad* click Config and modify it like this: [IMG]http://i46.*******.com/53232c.jpg[/IMG] When you have tweaked the settings to match the image above, you can click on "Update" to save the new settings to the "NDAAC-HE-64Kbps" profile, or you can click on "New" and give the new preset a name of your choosing. Just use this preset when encoding your audio, and you will get surprisingly good quality sound at about half the standard bitrate for mp3 (64 vs. 128 Kbps). Encoding with multiple channels If your source audio has more than two channels, you can keep all the channels and still reduce the file size by encoding in multichannel AAC. Just choose one of the profiles that have "MultiChannel" in the name, such as "NDACC-HE-MultiChannel-HQ-192Kbps" - and modify it as above to include Apply Dynamic Range Compression and Normalize Peaks to 98. If you don't have any profiles in your Encoder settings dropdown list with "MultiChannel", then you can use the Nero AAC: *scratchpad* setting and modify it to look like this: [IMG]http://i47.*******.com/16jkbo8.jpg[/IMG] Note the differences from "Downmixing to stereo" - Output Channels = Keep Original Channels - NeroDigital AAC Options = Adaptive Bitrate @ 192 Kbit/s When you have tweaked the settings to match the image above, you can click on "Update" to save the new settings to the "NDACC-HE-MultiChannel-HQ-192Kbps" profile, or you can click on "New" and give the new preset a name of your choosing. Encode it! Once you have chosen and tweaked the preset, you are ready to begin encoding. Start again on the MeGUI Input tab. To load the audio file, click the [...] button next to "Audio Input" and navigate to your source audio (.ac3, .dts, .mp2 or .wav). Then click on "Enqueue", move over to the "Queue" tab, and click on "Start". A Status dialog box will open, showing you the percentage of job that is completed, and when finished encoding, the dialog will close. Your new AAC audio file (with extension .mp4) should be in the same folder as the source, unless you changed the output location in Settings. See the Yamb tutorial in post #8 above for directions on muxing video and audio.
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January 30th, 2011, 09:05 AM | #18 | |
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Quote:
Note that MP4 is a container format not a codec. |
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February 18th, 2011, 07:39 PM | #19 | |
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May 27th, 2011, 01:03 AM | #20 | ||
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Quote:
it's true that mp4 is a container, however, most of other statements are a bit misleading: most of the problem regarding loading mp4 to vdub was EXACTLY the container, not the codec itself. but by now (and long time ago) it should be possible to load mp4 to vdub via plugins (visit vdub forum to get latest versions etc.) 2nd, i'm using avi container to store x264, as you can see from this mediainfo details: Quote:
so that's easilly possible, answer is x264vfw (that would be version of the codec that's compatible with vdub) to end, vfw and directshow are 2 different things: both video frameworks for windows, but vfw is MUCH older than directshow. dshow was/is usually used mainly to display video, or to feed video to encoders, it's rarely used as encoder in itself. if somebody needs to convert x264 to xvid, try "pocket divx encoder". i believe it uses dshow to decode any source, so anything that plays in windows players (like windows media player, or zoom player etc. with the exceptions of vlc, mpc home cinema and smiillar that pack their own decoders) should be "encodable" to xvid, and ergo playable in standalones of older kind. (i myself hooked one pc to tv and it plays anything in existance...heh..i have no dvd-player and no intention of getting one..they don't have seek-bar to jump thru the content... ) ps/ tried megui twice, and it was rather fast to crash...yamb also wasn't really doing what i wanted it, tried many versons. i would probably use ffmpeg (even though it's command line) to do muxing/demuxing if need be. |
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