stat.out

mpeg2视频编码

rate control: sequence initialization
 initial global complexity measures (I,P,B): Xi=556522, Xp=208696, Xb=146087
 reaction parameter: r=32000
 initial virtual buffer fullness (I,P,B): d0i=10323, d0p=10323, d0b=14452
 initial average activity: avg_act=400.0

rate control: new group of pictures (GOP)
 target number of bits for GOP: R=48000
 number of P pictures in GOP: Np=1
 number of B pictures in GOP: Nb=1

Frame 0 (#0 in display order):
 picture_type=I
 temporal_reference=0
 frame_pred_frame_dct=1
 q_scale_type=0
 intra_vlc_format=1
 alternate_scan=1

rate control: start of picture
 target number of bits: T=30720

vbv_delay=19211 (bitcount=632, decoding_time=19353.60, bitcnt_EOP=0)

rate control: end of picture
 actual number of bits: S=27189
 average quantization parameter Q=15.8
 remaining number of bits in GOP: R=20811
 global complexity measures (I,P,B): Xi=214113, Xp=208696, Xb=146087
 virtual buffer fullness (I,P,B): d0i=6792, d0p=10323, d0b=14452
 remaining number of P pictures in GOP: Np=1
 remaining number of B pictures in GOP: Nb=1
 average activity: avg_act=322.6

picture statistics:
 # of intra coded macroblocks:    64 (100.0%)
 # of coded blocks:              384 (100.0%)
 # of not coded macroblocks:       0 (0.0%)
 # of skipped macroblocks:         0 (0.0%)
 # of forw. pred. macroblocks:     0 (0.0%)
 # of backw. pred. macroblocks:    0 (0.0%)
 # of interpolated macroblocks:    0 (0.0%)

macroblock_type map:
I  I  I  I  I  I  I  I  
I  I  I  I  I  I  I  IQ 
IQ I  I  I  I  I  IQ I  
IQ I  I  I  IQ I  IQ I  
I  IQ IQ IQ IQ I  I  I  
IQ I  I  I  IQ I  I  I  
I  I  I  I  IQ I  I  I  
IQ I  I  I  I  I  I  IQ 

mquant map:
 20                     
 20                   12
 18                10   
 16          10    20   
 20 12 18 26 18         
  8          14         
 14           8         
 16                    8

Frame 1 (#2 in display order):
 picture_type=P
 temporal_reference=2
 frame_pred_frame_dct=0
 q_scale_type=1
 intra_vlc_format=1
 alternate_scan=0
 forward search window: -11...11 / -11...11
 forward vector range: -16...15.5 / -16...15.5

rate control: start of picture
 target number of bits: T=13874

vbv_delay=16695 (bitcount=27816, decoding_time=22953.60, bitcnt_EOP=27784)

rate control: end of picture
 actual number of bits: S=19564
 average quantization parameter Q=21.6
 remaining number of bits in GOP: R=1247
 global complexity measures (I,P,B): Xi=214113, Xp=211230, Xb=146087
 virtual buffer fullness (I,P,B): d0i=6792, d0p=16013, d0b=14452
 remaining number of P pictures in GOP: Np=0
 remaining number of B pictures in GOP: Nb=1
 average activity: avg_act=269.1

picture statistics:
 # of intra coded macroblocks:    22 (34.4%)
 # of coded blocks:              325 (84.6%)
 # of not coded macroblocks:       0 (0.0%)
 # of skipped macroblocks:         0 (0.0%)
 # of forw. pred. macroblocks:    20 (31.3%)
 # of backw. pred. macroblocks:    0 (0.0%)
 # of interpolated macroblocks:    0 (0.0%)

macroblock_type map:
0  0  0Q 0  0Q 0Q 0  0  
0Q 0  0Q 0Q 0Q 0Q I  f  
0Q 0Q 0Q 0Q 0Q IQ I  fQ 
0Q 0Q 0  f  I  fQ fQ IQ 
fQ I  fQ IQ fQ fQ f  IQ 
IQ I  IQ I  IQ fQ fQ FQ 
IQ I  f  IQ fQ IQ f  fQ 
IQ I  I  IQ IQ fQ fQ fQ 

mquant map:
 20    22    20 18      
 20    22 20 22 20      
 22 20 22 20 22 20    24
 22 20          22 14 16
 24    28 24 28 14    22
 24    28    20 24 28 32
 14       32 24 22    28
 16       20 32 16 28 36

Frame 2 (#1 in display order):
 picture_type=B
 temporal_reference=1
 frame_pred_frame_dct=0
 q_scale_type=1
 intra_vlc_format=0
 alternate_scan=1
 forward search window: -3...3 / -3...3
 forward vector range: -8...7.5 / -8...7.5
 backward search window: -7...7 / -7...7
 backward vector range: -8...7.5 / -8...7.5

rate control: start of picture
 target number of bits: T=2000

vbv_delay=15892 (bitcount=47384, decoding_time=26553.60, bitcnt_EOP=47352)

rate control: end of picture
 actual number of bits: S=6981
 average quantization parameter Q=31.5
 remaining number of bits in GOP: R=-5734
 global complexity measures (I,P,B): Xi=214113, Xp=211230, Xb=109842
 virtual buffer fullness (I,P,B): d0i=6792, d0p=16013, d0b=19433
 remaining number of P pictures in GOP: Np=0
 remaining number of B pictures in GOP: Nb=0
 average activity: avg_act=323.0

picture statistics:
 # of intra coded macroblocks:     4 (6.3%)
 # of coded blocks:              157 (40.9%)
 # of not coded macroblocks:      22 (34.4%)
 # of skipped macroblocks:         0 (0.0%)
 # of forw. pred. macroblocks:     1 (1.6%)
 # of backw. pred. macroblocks:   39 (60.9%)
 # of interpolated macroblocks:   20 (31.3%)

macroblock_type map:
dN dN dN dQ dN bN bN bN 
dN bN bN bN bN d  bQ bQ 
dN dN bN dN dN b  bQ dQ 
dN dN bN bN bQ bQ b  bQ 
bQ bQ bN b  bQ bQ bQ bQ 
dQ bQ bQ bQ bQ bQ bQ dQ 
IQ I  b  bQ bQ bQ b  dQ 
bQ IQ bQ IQ dQ dQ dQ fQ 

mquant map:
 32 28 36 32    28      
 32                28 32
 32 28 32          20 22
 32 28 32       18    28
 32 36 40 36 40 22 48 44
 18 20 36 56 36 32 40 32
 18       22 40 36    44
 22 32 44 36 48 28 36 22