Hi.
I've officially downloaded same film in 2 formats, WMV and MP4. WMV is 2.68gb, MP4 1.85gb. I've a 2 MPC mediinfo text files, please help to choose a video with better quality. Size and audio doesn't matter, i need high quality only.
Here's info:
MP4:
btiu_bridgette_b_1080p_8000.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 1.85 GiB
Duration : 31mn 4s
Overall bit rate mode : Variable
Overall bit rate : 8 518 Kbps
Writing application : Lavf52.31.0
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 31mn 4s
Duration_FirstFrame : -100ms
Bit rate : 7 999 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 29.970 fps
Minimum frame rate : 7.493 fps
Maximum frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.129
Stream size : 1.74 GiB (94%)
Language : English
Tagged date : UTC 2010-07-09 18:02:57
----------------------------------------------------------------------------------------------------------------------------------------------------
WMV:
btiu_bridgette_b_1080p_12000.wmv
Format : Windows Media
File size : 2.63 GiB
Duration : 31mn 4s
Overall bit rate : 12.1 Mbps
Maximum Overall bit rate : 12.1 Mbps
Encoded date : UTC 2010-07-12 22:38:42.000
Video
ID : 2
Format : VC-1
Codec ID : WVC1
Codec ID/Hint : Microsoft
Duration : 31mn 4s
Bit rate : 1 bps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Bit depth : 16 bits
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.000
Stream size : 233 Bytes (0%)
Sorry for my bad english.
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As usual, it's impossible to tell the quality from looking at stats like that. There's something wrong with the report for the WMV file -- there's no way it's really 1 bit per second.
Related post:
https://forum.videohelp.com/threads/354067-Video-file-quality-differences?p=2224895&vie...=1#post2224895 -
assuming that both files were encoded from the same source (i.e. not one from the other) then i would bet money that the vc-1 file at 1080p and 12mb/s would be of higher visual quality than the h264 file at 1080p and only 8mb/s, of course your eyes would be the best way to determine which one is superior.
if you had the source you could use a tool that calculates PSNR and/or SSIM for each file and compare them that way.
but ultimately, your eyes are the best judge.
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