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Analisi video x264 Opzioni
venac
Inviato: Saturday, March 04, 2017 7:49:13 AM
Rank: AiutAmico

Iscritto dal : 4/29/2014
Posts: 44
Allego un report avinaptic di un video x264.
Quali sono i valori più importanti e come dovrebbero essere affinché possa essere considerato un video di buona qualità?
Grazie


[ About file ]

Name: 1.mkv
Date: Thu, 02 Mar 2017 16:52:47 +0100
Size: 2,834,165,517 bytes (2702.871 MiB)

[ Magic ]

Tipo file: data

[ Generic infos ]

Duration: 02:46:02 (9962.016 s)
Container: matroska
Production date: Thu, 02 Mar 2017 16:50:38 +0100
Total tracks: 2
Track nr. 1: video (V_MPEG4/ISO/AVC) [By s£cR3W] {eng}
Track nr. 2: audio (A_AC3) {ita}
Muxing library: libebml v1.3.4 + libmatroska v1.4.5
Writing application: mkvmerge v9.4.2 ('So High') 32bit

[ Relevant data ]

Resolution: 848 x 360
Width: multiple of 16
Height: multiple of 8
Average DRF: 20.372
Standard deviation: 3.513
Std. dev. weighted mean: 3.357

[ Video track ]

Codec ID: V_MPEG4/ISO/AVC
Resolution: 848 x 360
Frame aspect ratio: 106:45 = 2.356 (~2.35:1)
Pixel aspect ratio: 1:1 = 1
Display aspect ratio: 106:45 = 2.356 (~2.35:1)
Framerate: 23.976 fps
[debug] codec private: 42 bytes
Stream size: 2,274,174,132 bytes (2168.821 MiB)
Duration (bs): 02:46:02 (9961.994 s)
Bitrate (bs): 1826.28 kbps
Qf: 0.25

[ Audio track ]

Codec ID: A_AC3
Sampling frequency: 48000 Hz
Channels: 2
Stream size: 557,872,896 bytes (532.029 MiB)
Bitstream type (bs): AC3
Frames (bs): 311,313
Duration (bs): 02:46:02 (9962.016 s)
Chunk-aligned (bs): Yes
Bitrate (bs): 448 kbps CBR
Sampling frequency (bs): 48000 Hz
Mode (bs): stereo

[ Video bitstream ]

Bitstream type: MPEG-4 Part 10
User data: x264 | core 146 r2538 121396c | H.264/MPEG-4 AVC codec
User data: Copyleft 2003-2015 | http://www.videolan.org/x264.html | cabac=1
User data: ref=3 | deblock=1:-1:-1 | analyse=0x3:0x113 | me=hex | subme=7
User data: psy=1 | psy_rd=1.00:0.15 | mixed_ref=1 | me_range=16 | chroma_me=1
User data: trellis=1 | 8x8dct=1 | cqm=0 | deadzone=21,11 | fast_pskip=1
User data: chroma_qp_offset=-3 | threads=4 | lookahead_threads=1
User data: sliced_threads=0 | nr=0 | decimate=1 | interlaced=0
User data: bluray_compat=0 | constrained_intra=0 | bframes=3 | b_pyramid=2
User data: b_adapt=2 | b_bias=0 | direct=1 | weightb=1 | open_gop=0 | weightp=2
User data: keyint=240 | keyint_min=23 | scenecut=40 | intra_refresh=0
User data: rc_lookahead=40 | rc=2pass | mbtree=1 | bitrate=1826 | ratetol=1.0
User data: qcomp=0.60 | qpmin=0 | qpmax=69 | qpstep=4 | cplxblur=20.0
User data: qblur=0.5 | vbv_maxrate=62500 | vbv_bufsize=62500 | nal_hrd=none
User data: filler=0 | ip_ratio=1.40 | aq=1:1.00
SPS id: 0
Profile: High@L4.1
Num ref frames: 4
Aspect ratio: Square pixels
Chroma format: YUV 4:2:0
PPS id: 0 (SPS: 0)
Entropy coding type: CABAC
Weighted prediction: P slices - explicit weighted prediction
Weighted bipred idc: B slices - implicit weighted prediction
8x8dct: Yes
Total frames: 238,849
Drop/delay frames: 0
Corrupt frames: 0

P-slices: 65975 ( 27.622 %) ######
B-slices: 171114 ( 71.641 %) ##############
I-slices: 1760 ( 0.737 %)
SP-slices: 0 ( 0.000 %)
SI-slices: 0 ( 0.000 %)

[ DRF analysis ]

average DRF: 20.372
standard deviation: 3.513
max DRF: 31

DRF<3: 0 ( 0.000 %)
DRF=3: 4 ( 0.002 %)
DRF=4: 42 ( 0.018 %)
DRF=5: 55 ( 0.023 %)
DRF=6: 67 ( 0.028 %)
DRF=7: 331 ( 0.139 %)
DRF=8: 428 ( 0.179 %)
DRF=9: 779 ( 0.326 %)
DRF=10: 451 ( 0.189 %)
DRF=11: 835 ( 0.350 %)
DRF=12: 1376 ( 0.576 %)
DRF=13: 2448 ( 1.025 %)
DRF=14: 4581 ( 1.918 %)
DRF=15: 7580 ( 3.174 %) #
DRF=16: 9987 ( 4.181 %) #
DRF=17: 13940 ( 5.836 %) #
DRF=18: 19058 ( 7.979 %) ##
DRF=19: 26192 ( 10.966 %) ##
DRF=20: 37189 ( 15.570 %) ###
DRF=21: 32992 ( 13.813 %) ###
DRF=22: 22105 ( 9.255 %) ##
DRF=23: 16222 ( 6.792 %) #
DRF=24: 12789 ( 5.354 %) #
DRF=25: 10678 ( 4.471 %) #
DRF=26: 7660 ( 3.207 %) #
DRF=27: 5931 ( 2.483 %)
DRF=28: 3523 ( 1.475 %)
DRF=29: 1264 ( 0.529 %)
DRF=30: 320 ( 0.134 %)
DRF=31: 22 ( 0.009 %)
DRF>31: 0 ( 0.000 %)

P-slices average DRF: 18.864
P-slices std. deviation: 2.975
P-slices max DRF: 30

B-slices average DRF: 20.992
B-slices std. deviation: 3.51
B-slices max DRF: 31

I-slices average DRF: 16.607
I-slices std. deviation: 2.83
I-slices max DRF: 27

[ Profile compliancy ]

Selected profile: MTK PAL 6000
Resolution: 848 x 360 > 720 x 576
Framerate: 23.976 <> 25
Min buffer fill: 80%

This report was created by AVInaptic (25-07-2011) on 4-03-2017 07:45:43
Sponsor
Inviato: Saturday, March 04, 2017 7:49:13 AM

 
venac
Inviato: Tuesday, March 07, 2017 10:14:08 PM
Rank: AiutAmico

Iscritto dal : 4/29/2014
Posts: 44
Chiedo scusa se ho postato una domanda troppo difficile.
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