I am looking at this converted anime movie that is 2 hours and 43 min long, it has a bit rate of 310kbps audio at 138kbps.
Enocded with AVC h264 at 480x272.
How on earth does one get it this small? that quality on it is great too, i really need to know how to get them this small. I've tried using xilisoft video converter, i tell it to do 300 mb and gives me a 1gig file instead, please tell me what am I doing wrong and how can i get small file sizes and make it look good?
+ Reply to Thread
Results 1 to 25 of 25
-
-
Post a MediaInfo report of the file and maybe something in that will give a clue as to what the encoder did.
SONY 75" Full array 200Hz LED TV, Yamaha A1070 amp, Zidoo UHD3000, BeyonWiz PVR V2 (Enigma2 clone), Chromecast, Windows 11 Professional, QNAP NAS TS851 -
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 367 MiB
Duration : 2h 43mn
Overall bit rate mode : Variable
Overall bit rate : 314 Kbps
Encoded date : UTC 2011-09-29 21:35:00
Tagged date : UTC 2011-09-29 21:35:00
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2h 41mn
Bit rate : 173 Kbps
Maximum bit rate : 4 173 Kbps
Width : 480 pixels
Height : 272 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.055
Stream size : 200 MiB (55%)
Writing library : x264 core 115 r1937 aa21558
Encoding settings : cabac=1 / ref=3 / deblock=1:1:1 / analyse=0x1:0x111 / me=umh / subme=7 / psy=1 / psy_rd=0.40:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.80 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:0.60
Encoded date : UTC 2011-09-29 21:35:00
Tagged date : UTC 2011-09-29 21:35:12
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 2h 43mn
Bit rate mode : Variable
Bit rate : 138 Kbps
Maximum bit rate : 177 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 162 MiB (44%)
Encoded date : UTC 2011-09-29 21:35:10
Tagged date : UTC 2011-09-29 21:35:12
Does this help any? -
It also depends on the source material. Things like noise, dirt impair compression. CGI type animation is harder to compress, because there are more details
If it's "clean" simple animation , then yes, it's easy to compress . If it's older animation or "dirty" , then you often have to do some filtering before encoding -
WWE? Do you mean wrestling ?
Much more difficult to compress, because there is lots of motion, and it's live action (real people), not smooth simple gradients like animation -
-
-
Hit the hot link and look under the section "guides"
https://www.videohelp.com/tools/RipBot264 -
Amazing. And half the file is audio.
Anyway I made this 2 min clip http://www.mediafire.com/?rfiar8mrjkfq621 using MediaCoder with setting that would result in an approx 325 MB file for a 2:43 movie. I don't know if you would consider it good q or not (I wouldn't) but here it goes:
Drag Drop your source to MediaCoder
Select the Video tab on your left
Select Video Bitrate to 200
Select Rate Mode 3-pass (or 2-pass I can't see any difference)
Select format H.264
Now go to the audio tab on your left
Select Format LC-ACC
On the rigth side it would (probably) say Nero Encoder. Choose Rate Mode=Target Bitrate and set it to 64 (or 96) Kbps
Go to the Container Tab on your right.
Select Container MP4
Goto to the Picture Tab on your left
Select Global Resize and drop down 480x272
And that's it. You'r ready to go and click Start -
-
I am trying out that mediacoder suggestion right now i will let you know of my results by the way thanks for the suggestion.
-
-
Nope. Multipasses are used for more precise ending filesize, and frametype allocation
Filesize is determined by this equation:
Filesize = Bitrate x Running time
Notice resolution isn't part of the equation. But you need a higher bitrate for same level of "quality" for higher resolution. (you need more bits)
So a 1920x1080 version of the video and a 480x272 version will be the same filesize, if they have the same bitrate -
-
You can gain some compression, but some material is more easily compressible than others . Go back and re-read what was said earlier.
For example, a FPS action video game with explosions, lots of movement will look a lot worse than say, tetris or poker video game at the same bitrate. In other words, that action game will require more bitrate to have a certain level of "quality". In other words, you need larger filesize compared to that poker game -
There shouldnt be any desync in the first place. There is no real "best way"
If you are getting sync issues, describe the problem: is it constant sync problem (e.g. 1 sec all the way through), or progressively worsening
If the source file is variable frame rate, you need to make a vfr encode (not supported by many devices), or try to convert it to cfr (constant frame rate)
Similar Threads
-
Convert VOB file to MP4 (PSP)
By HunterD in forum Video ConversionReplies: 4Last Post: 5th Mar 2010, 02:39 -
I need to test mp4 video file iphone, psp, ipod, blackberry
By timo2009 in forum Video ConversionReplies: 7Last Post: 29th Sep 2009, 16:24 -
PSP(MP4) Video Conversion...
By Nizomi in forum Newbie / General discussionsReplies: 7Last Post: 11th Oct 2008, 03:53 -
mov or mp4 file hangs my machine for a min.
By greendesert in forum Software PlayingReplies: 1Last Post: 4th May 2008, 13:50