keď video nahrané iPhonom SE, ktoré je v PC krásne ostré, cez počítač uploadnem na YouTube, dôjde k výraznej strate kvality, aj keď podľa ozubeného kolieska pod videom je rozlíšenie a fps rovnaké. Tu je porovnanie http://i.imgur.com/zxzwMyG.png
Parametre videa pred uploadom sú nasledovné:
Kód: Vybrat vše
General
Complete name : C:\Users\cobr4in\Desktop\IMG_0168.MOV
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt
File size : 23.6 MiB
Duration : 7s 438ms
Overall bit rate mode : Variable
Overall bit rate : 26.6 Mbps
Encoded date : UTC 2016-07-25 17:28:25
Tagged date : UTC 2016-07-25 17:28:33
Writing library : Apple QuickTime
com.apple.quicktime.make : Apple
com.apple.quicktime.model : iPhone SE
com.apple.quicktime.software : 9.3.3
com.apple.quicktime.creationda : 2016-07-25T19:28:25+0200
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.2
Format settings, CABAC : Yes
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=60
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 7s 438ms
Bit rate : 26.5 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Rotation : 180°
Frame rate mode : Variable
Frame rate : 59.940 fps
Minimum frame rate : 54.545 fps
Maximum frame rate : 60.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.213
Stream size : 23.5 MiB (100%)
Title : Core Media Video
Encoded date : UTC 2016-07-25 17:28:25
Tagged date : UTC 2016-07-25 17:28:33
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 7s 438ms
Source duration : 7s 500ms
Bit rate mode : Variable
Bit rate : 87.3 Kbps
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 79.2 KiB (0%)
Source stream size : 80.0 KiB (0%)
Title : Core Media Audio
Encoded date : UTC 2016-07-25 17:28:25
Tagged date : UTC 2016-07-25 17:28:33
Other #1
Type : meta
Duration : 7s 438ms
Other #2
Type : meta
Duration : 7s 438ms