Ciao a tutti , ho 3 file video provenienti da fonti diverse, ho usato mediainfo per capire quali tra i tre sia migliore e da salvare, ma a parte l'audio(semplicemente tutto in AAC quindi controllo i kbps) per la parte video ci sono un po' troppe differenze (frame per secondo-> importanti ma anche la risoluzione video è importante quindi non saprei cosa prendere in considerazione).
Mi dareste una mano indicandomi anche il motivo della vostra scelta?:D
1.
2.
3.
Cio che balza subito all'occhio prendendo solamente 2 file anzichè 3( i piu simili):
1.Width : 332 pixels
Height : 240 pixels
Frame rate : 25.000 fps
Audio:Bit rate : 96.0 Kbps
Maximum bit rate : 102 Kbps
Contro il 2 che ha fps molto piu bassi(non sarà scattoso all'occhio umano?) ma con risoluzione maggiore e audio migliore:
496x360
FPS 12
Audio 254 kbps
Come fareste la vostra scelta e perchè?grazie!
Mi dareste una mano indicandomi anche il motivo della vostra scelta?:D
1.
Codice:
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 46.7 MiB
Duration : 11mn 58s
Overall bit rate : 545 Kbps
Writing application : Lavf55.49.100
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L2.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 11mn 58s
Bit rate : 287 Kbps
Width : 496 pixels
Height : 360 pixels
Display aspect ratio : 1.378
Frame rate mode : Constant
Frame rate : 12.500 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.129
Stream size : 24.6 MiB (53%)
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 11mn 58s
Bit rate mode : Constant
Bit rate : 254 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 21.7 MiB (47%)
Codice:
2.Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 32.9 MiB
Duration : 11mn 58s
Overall bit rate mode : Variable
Overall bit rate : 384 Kbps
Encoded date : UTC 2014-09-08 16:50:37
Tagged date : UTC 2014-09-08 16:50:37
Video
ID : 201
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L2.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 11mn 58s
Bit rate : 283 Kbps
Maximum bit rate : 1 379 Kbps
Width : 332 pixels
Height : 240 pixels
Display aspect ratio : 1.379
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.142
Stream size : 24.2 MiB (74%)
Writing library : x264 core 130
Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x3:0x3 / me=dia / subme=1 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=36 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=0 / rc=crf / mbtree=0 / crf=25.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=2500 / vbv_bufsize=5000 / crf_max=0.0 / nal_hrd=none / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00
Tagged date : UTC 2014-09-08 16:50:39
Audio
ID : 101
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 11mn 58s
Bit rate mode : Variable
Bit rate : 96.0 Kbps
Maximum bit rate : 102 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 8.22 MiB (25%)
Encoded date : UTC 2014-09-08 16:50:37
Tagged date : UTC 2014-09-08 16:50:39
Other #1
ID : 2
Type : Object description
Format : System
Codec ID : 1
Duration : 1s 0ms
Encoded date : UTC 2014-09-08 16:50:39
Tagged date : UTC 2014-09-08 16:50:39
Other #2
ID : 1
Type : Scene description
Format : System Core
Codec ID : 2
Duration : 1s 0ms
Encoded date : UTC 2014-09-08 16:50:39
Tagged date : UTC 2014-09-08 16:50:39
Codice:
3. Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 40.5 MiB
Duration : 11mn 58s
Overall bit rate mode : Variable
Overall bit rate : 472 Kbps
Writing application : Lavf56.15.102
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 11mn 58s
Bit rate : 403 Kbps
Width : 496 pixels
Height : 360 pixels
Display aspect ratio : 1.379
Frame rate mode : Constant
Frame rate : 12.500 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.180
Stream size : 34.5 MiB (85%)
Writing library : x264 core 142 r62 24e4fed
Encoding settings : cabac=0 / ref=2 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=4 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=0 / keyint=250 / keyint_min=12 / scenecut=40 / intra_refresh=0 / rc_lookahead=20 / rc=crf / mbtree=1 / crf=25.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=2500 / vbv_bufsize=5000 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 11mn 58s
Bit rate mode : Variable
Bit rate : 63.7 Kbps
Maximum bit rate : 2 500 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 5.46 MiB (13%)Cio che balza subito all'occhio prendendo solamente 2 file anzichè 3( i piu simili):
1.Width : 332 pixels
Height : 240 pixels
Frame rate : 25.000 fps
Audio:Bit rate : 96.0 Kbps
Maximum bit rate : 102 Kbps
Contro il 2 che ha fps molto piu bassi(non sarà scattoso all'occhio umano?) ma con risoluzione maggiore e audio migliore:
496x360
FPS 12
Audio 254 kbps
Come fareste la vostra scelta e perchè?grazie!
