July 10th, 2012, 10:58 AM
Best way to convert FLV files
I have a movie of approximately 2 hours' duration which I received as a set of eight FLV files. I am trying to join them together into a single file, preferably as H.264 encoded to save space, but at this point, just joining them into one big file would be helpful.
I tried entering all 8 files into a joiner list and telling Video ReDo to create an output file from the set. It never popped up a warning message about Major Recode Required, but instead it thought awhile, popped up an exclamation mark inside of a yellow triangle and offered me an ABORT option button. I just sat back and waited, and the warning screen went away on its own, but was replaced with an estimate that it would take nearly a hundred hours to do the job. At that point, I aborted it.
I tried joining just parts 1 & 2, planning to then join parts 3 & 4, etc., to create four temporary files, and see if they would join any better.
Joining 2 at a time does create the H.264 *.ts file, but takes about 24 hours or so of un-interrupted effort on a quad-core i7 laptop with 6 Gb of RAM.
Joining two of the ts files (one file with parts 1&2, one file with parts 3&4) crashes VideoReDo with a memory allocation error. So I can't get any further along.
Here is part of the MediaInfo listing of one of the 8 parts:
Format : Flash Video
File size : 56.0 MiB
Duration : 14mn 50s
Overall bit rate : 527 Kbps
httphostheader : o-o.preferred.ord12s10.v13.lscache6.c.youtube.com
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Format settings, GOP : M=1, N=30
Codec ID : 7
Duration : 14mn 50s
Bit rate : 390 Kbps
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.042
Stream size : 41.4 MiB (74%)
Is there an output format I can use when joining these files that won't need a lot of re-coding, so it can be done in a reasonable time and with "only" 6 Gb of RAM? All 8 files add up to a little over a half a gigabyte, so they could all fit into RAM at one time if needed...
I am using VideoReDo TV Suite version 220.127.116.119 Nov 15, 2011 AVP-On in case that is pertinent. As I've said several times before, this is an awesome product. And I realize that absolute perfection is a goal towards which we should all strive even while recoginizing that it is never attainable!
Last edited by John Toscano; July 10th, 2012 at 11:15 AM.
July 10th, 2012, 11:18 AM
Sorry, this thread is in the wrong place. It belongs one level up because it is NOT related to the beta release software. I tried to delete it so I could re-post it in the right place, but was unable to do so. I did try the button marked Edit (popup help says it is both edit and delete) but could not find a way to delete the whole thing to start over. Sorry about that...
July 10th, 2012, 04:12 PM
First off you should try the beta. It has a lot of fixes not in the last official release and might take care of the problem. If that doesn't work try running each file through Quick Stream Fix and saving as an H264 Transport Stream. Then try joining the resulting files.
QSF should only take a few minutes to complete, so if it takes a long time then something else is wrong and we'll need to look into this further.
July 11th, 2012, 02:30 PM
The good news:
Using my older copy, QSF wanted 56 hours to process one of the FLV files.
Using the beta copy, QSF processed the first FLV file in about 3 minutes.
The bad news:
Downloading the beta copy has apparently blown away all of my "profiles", so I cannot
create any output files from the joiner, nor by loading in one file and saving it again. :(
I seem to be stuck with a non-functional copy of VideoReDo now...
July 11th, 2012, 03:01 PM
Check out this thread to fix the profiles issue...
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