Informatika_Лекц1
.pdf
1.2.4 
Hz
1.13.
~ 
20,854 
0,856 
002 
)
(sampling rate
(sampling size
.
1)
.
N = 2I = 216 
2) 
.
. - 
.
.
48 
-CD.
. 3)
1.2.5 
).
PAL 
SECAM 
NTSC
.
-
-
, 
Blu-Ray
MPEG (Moving Picture Experts 
MPEG-1
MPEG-7 
MPEG-21.
http://www.mpeg.org.
4. 
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VCD |
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MPEG-1 |
MPEG-1 |
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SVCD |
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MPEG-2 |
MPEG-1 |
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DVD |
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MPEG-2 |
MPEG-1, AC3 |
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XVCD |
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MPEG-1 |
MPEG-1 |
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DivX |
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MPEG-4 |
MP3, WMA |
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HDTV |
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720p |
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H.264 |
AC3 |
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HDTV |
1920 |
MPEG-4 |
MP3, WMA, |
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1080i |
H.264 |
AC3 |
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AVCHD |
(p |
MPEG-4 v.10 |
PCM (7.1) |
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720p |
(AVC/H.264) |
AC3 (5.1) |
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AVCHD |
192 |
MPEG-4 v.10 |
PCM (7.1) |
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1080i |
(AVC/H.264) |
AC3 (5.1) |
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MPEG (MPEG-1, MPEG-2, MPEG-4, MPEG
I-
frame 
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P-
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B-
(Bidirectional frame
MPEG-4 
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MPEG-4 |
AVC/H.264 |
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H.264) |
AVCHD (Advanced |
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Video Codec High Definition |
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) |
720p |
1080i 
AVCHD 
AVC/H.264.
MPEG
-
(Multimedia Content
Description Interface)
MPEG, MPEG- 
MPEG-7
.
-
-
MPEG-1, MPEG-2, MPEG-4
MPEG-7.
MPEG-21 
(Multimedia Framework).
MPEG-21 
:
Microsoft AVI 
MKV
AVI 
Video, Audio,
MIDI, Te
MKV (Matroska
)
MKV 
-
DVD 
Blu-Ray 
mkv 
-
.
1.2.6
(data compression
, 
JPEG, TIFF, GIF, PNG 
MP3
MPEG-4.
1)
Length Encoding RLE).
44 44 44 11 11 11 11 11 01 33 FF 22 22 03 44 04 11 00 03 01 33 FF 02 22
,
(00 03).
2)
ASCII.
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(10) |
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(
E).
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= 0
= 1 
(
00. 
E) 
C= 00 ( 
)
E= 01 
B= 10 
F= 110 
A= 1101 
D= 1111 
3)