|
|
|
|
| Library Functions |
|
Software
Requirements |
- Open an existing AVI file in read
mode.
- Create and open an new AVI file in write mode.
- Read a compressed or uncompressed frame from an AVI file.
- Optionally compress and write a frame to an AVI file.
- Lists all the installed codecs.
- Get informations about an existing
AVI file.
- The library is fully compatible with the AVI and OpenDML 2.0
specifications (no 2Gb file size limit, compatible with AVI type 1
and type 2). |
To use the AVI Library, your computer
must meet the following software requirements:
- Microsoft Windows 2000, XP operating systems.
- C/C++ Compiler or National Instruments LabVIEW version 6.x, 7.x.
- National Instruments IMAQ Vision version 6.x, 7.x |
|
| LabVIEW Vi's |
|
C/C++ Functions |
AVI informations Vi's
- AVI-FileInfos.vi
- AVI-GetCodecs.vi
AVI Read/Write
Vi's
- AVI-Open.vi
- AVI-Create.vi
- AVI-Close.vi
- AVI-ReadFrame.vi
- AVI-WriteFrame.vi
Demonstration vi's
- AVI-DemoRead.vi
- AVI-DemoWrite.vi
|
AVI informations Vi's
- GetFileInfos
- GetNumberOfCodecs
- GetCodecName
AVI Read/Write
Vi's
- OpenFile
- CreateFile
- CloseFile
- ReadFrame
- WriteFrame
|
Supported AVI codecs
| |
Supported
input
image types |
Support
quality setting ? |
Support
Keyframe rate setting? |
Loseless
compression ? |
Output
Image quality |
| Uncompressed |
All |
No |
No |
Yes |
**** |
| Indeo® Video 5.10 |
RGB8,
RGB24 |
Yes |
Yes |
No |
*** |
| MJPEG compressor |
RGB32 |
Yes |
No |
Yes
(if quality = 100%) |
**** |
| DV Video Encoder |
RGB24 |
No |
No |
No
(Resample) |
** |
| Codec Cinepak Radius |
RGB8,
RGB24, RGB32 |
Yes |
Yes |
No |
** |
| DivX® 5.2.1 Codec |
RGB24 |
No |
No |
No |
** |
| Microsoft MPEG-4
V2 |
RGB24 |
No |
No |
No |
*** |
| Microsoft MPEG-4
V1 |
RGB24 |
No |
No |
No |
** |
| Microsoft RLE |
RGB8 |
No |
Yes |
Yes
(if keyframe rate = 1) |
**** |
| Microsoft Video
1 |
RGB8,
RGB565 |
Yes |
Yes |
No |
* |
| Microsoft Windows
Media Video 9 |
RGB24 |
No |
Yes |
No |
*** |
| XviD MPEG-4 Codec |
RGB32 |
No |
No |
No |
** |
AVI Codecs benchmark
* Mono
8-bit, 500 frames
each frame is a keyframe, quality at 1.00 (100%).
| |
768x576 |
1024x768 |
1280x960 |
| Average
Compression + Write time / frame (ms) |
File
size
(kb) |
Average
Compression + Write time / frame (ms) |
File
size
(kb) |
Average
Compression + Write time / frame (ms) |
File
size
(kb) |
| Uncompressed |
10 |
216
323 |
16 |
384
323 |
59 |
1
536 320 |
| Indeo® Video 5.10 |
150 |
27
822 |
344 |
75
044 |
363 |
82
250 |
| MJPEG compressor |
36 |
65
322 |
112 |
231
247 |
158 |
401
457 |
| DV Video Encoder |
20 |
70
572 |
31 |
70
572 |
40 |
70
572 |
| Codec Cinepak Radius |
180 |
27
572 |
812 |
57
081 |
1
353 |
98
254 |
| DivX® 5.2.1 Codec |
18 |
500 |
37 |
1
896 |
46 |
1
638 |
| Microsoft MPEG-4
V2 |
18 |
486 |
39 |
2
066 |
38 |
2
419 |
| Microsoft MPEG-4
V1 |
18 |
598 |
36 |
2
165 |
38 |
2
429 |
| Microsoft RLE |
4 |
32
323 |
21 |
293
967 |
33 |
373
959 |
| Microsoft Video
1 |
65 |
117
073 |
131 |
206
827 |
162 |
423
416 |
| Microsoft Windows
Media Video 9 |
53 |
10
822 |
110 |
5
306 |
150 |
23
127 |
| XviD MPEG-4 Codec |
19 |
409 |
46 |
2
377 |
49 |
2
381 |
* RGB 32-bit,
500 frames
each frame is a keyframe, quality at 1.00 (100%).
| |
768x576 |
1024x768 |
1280x960 |
| Average
Compression + Write time / frame (ms) |
File
size
(kb) |
Average
Compression + Write time / frame (ms) |
File
size
(kb) |
Average
Compression + Write time / frame (ms) |
File
size
(kb) |
| Uncompressed |
43 |
864
322 |
59 |
1
536 320 |
110 |
2
400 318 |
| Indeo® Video 5.10 |
150 |
28
822 |
363 |
82
250 |
588 |
114
330 |
| MJPEG compressor |
41 |
231
247 |
158 |
401
457 |
266 |
580
922 |
| DV Video Encoder |
26 |
79
572 |
40 |
70
572 |
53 |
70
572 |
| Codec Cinepak Radius |
210 |
29
822 |
1
353 |
98
254 |
2
259 |
153
141 |
| DivX® 5.2.1 Codec |
22 |
521 |
46 |
1
638 |
73 |
1
672 |
| Microsoft MPEG-4
V2 |
22 |
513 |
38 |
2
419 |
69 |
2
832 |
| Microsoft MPEG-4
V1 |
21 |
641 |
38 |
2
429 |
68 |
2
683 |
| Microsoft RLE |
16 |
166
573 |
33 |
373
959 |
56 |
549
672 |
| Microsoft Video
1 |
42 |
64
822 |
162 |
423
416 |
238 |
587
558 |
| Microsoft Windows
Media Video 9 |
57 |
12
072 |
150 |
26
127 |
244 |
60
626 |
| XviD MPEG-4 Codec |
23 |
419 |
49 |
2
381 |
81 |
2
426 |
For more informations,
please see the technical manual, available for download on the "Technical
support" page.
|
LabVIEW
6.x, 7.x