My original file is a .264 AVC file at ~20Mbps. I will be using MeGUI to reduce that to 10Mbps, but my question is, should I convert it to an XviD AVI at 10Mbps, or change it to an AVC at 10Mbps? Which would result in the highest quality for the bit rate, with all other things (resolution, no filters, etc) being the same? I should probably mention that I will be muxing the resulting video with the audio (encoded separately) with mkvmerge.
Also, on an unrelated note, how would I best go about extracting a portion (~1min clip) of an FLV file? I've got an FLV joiner, but no FLV splitter.
Sorry for the third question in a single thread, but could anyone give a brief explanation of what the different "Levels" mean for AVC video? I see most at L4.1, but what are "Levels," and how do they affect picture quality?
Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 7 of 7
Thread
-
Last edited by agni451; 6th Feb 2011 at 03:03.
-
Originally Posted by agni451
However, Xvid has advantages such as less processing and better support among certified devices (you may need to verify whether it will support HD though if encoding to HD).
Xvid typically uses AVI, but can also, like AVC, be muxed into an MKV with what audio you choose.
But if you want to use the blu-ray spec that MeGUI offers, you may want to use AVC if playing on a blu-ray player.
Alot depends on what the playback device you wish to use and what it supports in your decision.
Originally Posted by agni451
Originally Posted by agni451
But nevertheless it's important among several playback devices which look for this flag. Level 4.1 is typically what's blu-ray compatible, among other devices such as game consoles. Mobiles may accept lower levels.I hate VHS. I always did. -
Okay, I'll be going with AVC. Had to up the motion estimation because there's a lot of fast action, so this encode is going to be SLOW.
Luckily, I won't be playing this on a blu-ray player, just my computer, so I guess I don't have to worry too much about compatibility. Thanks for the heads up, though.
AviDemux seems to freeze when I open an FLV (I have the latest version). I ended up just using ffmpeg command line directly and I did what I needed. Thanks. -
@agni451 - will mp4 files with h264 work for you? If so here's what you can do:
Use winff to transcode the ORIGINAL flv to mp4. These have worked perfectly on my first generation wdtv media player. The first gen wdtv doesn't read the original flv files even though they are h264 but it reads the remuxed mp4 files perfectly. Mine happen to be 4:3 sd but I'm sure it works with hd widescreen ones.
Use this line in the additional parameters tab:
-vcodec copy -acodec copy
Thanks to bat999 for this information.
I'm pretty sure they worked ok on my ps3 too after muxing to mp4 - fyi there is no processing involved - the headers and file extension are changed without altering the video. Select mp4 in the convert to slot and select mp4 widescreen if they are widescreen video.
Mp4 should be pretty prevelant on many devices especially since they are originally h264 - just check your device to be sure.Donatello - The Shredder? Michelangelo - Maybe all that hardware is for making coleslaw? -
My final ffmpeg command line was
ffmpeg.exe -i video_in.flv -ss 00:01:00 -t 00:01:00 -vcodec copy -acodec copy video_out.flv
It worked perfectly.
About the AVC video- it took 12 hours on my i7 950 to encode, but the video was great- quality looked as good as the original at more than twice the bitrate. I just have a quick question- when I was playing it in VLC media player, at two distinct scenes pixels start dragging across the screen for about a second or two and the scene is completely unwatchable. However, when I view the same scenes in MPC-HC, it works just fine. Anyone else had this issue with VLC?
Similar Threads
-
AVI container encoded with H.264/AVC video and PCM sound
By LoLaha in forum Video ConversionReplies: 6Last Post: 20th Mar 2012, 22:14 -
MPEG-TS AVC to regular DivX/XviD (.avi)?
By svebee in forum Video ConversionReplies: 2Last Post: 4th Apr 2010, 05:32 -
Converting .ts/avc HDTV files to .avi
By Kull in forum Video ConversionReplies: 2Last Post: 8th Feb 2010, 19:57 -
How do I compile AC3, ASS, AVC & Fonts into an AVI (or DivX)?
By Panarchy in forum Video ConversionReplies: 3Last Post: 25th Oct 2008, 20:41 -
Avi to Mp4/AVC for PS3 Playstation 3 with subs - VirtualDubMod
By moses6533 in forum Video ConversionReplies: 8Last Post: 28th Jul 2007, 10:19