NOKIA 专用KF压缩软件下载
NOKIA 专用KF压缩软件下载
本软件是在nokia kf专用的，压缩后的音质和视频效果都很好！支持任何nokia的手机，但要看自己手机是否支持此格式，3GPP ADPCM AMR API AVI DCT GSM HSCSD HTML WAV Sub-QCIF RGB PCM MP3 MPG MPEG MMS IMA具体还是看软件说明把！
软件介绍：
Multimedia Content Creation Using
Nokia Multimedia Converter Pro v2.0
Copyright © Nokia Corporation 2002. All rights reserved.
Reproduction, transfer, distribution or storage of part or all of the contents in this document in any form without the prior written permission of Nokia is prohibited.
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Nokia operates a policy of continuous development. Nokia reserves the right to make changes and improvements to any of the products described in this document without prior notice.
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The availability of particular products may vary by region. Please check with the Nokia dealer nearest to you.
Copyright Nokia Corporation 2002. All rights reserved.
1. Multimedia Converter Pro v2.0
With Multimedia Converter Pro v2.0 you can convert common video file formats to 3GPP format. When converting a video file, the size of the converted file is usually much smaller than the size of the original file. You can also convert common audio file formats to AMR format.
Use the following procedure to convert a video file:
1. In the menu, select File > Open. A dialog opens. Browse for the video file you want to convert and click OK. Alternatively, you can drag a file to Multimedia Converter. The file information is transferred to Original file fields on the left side of the dialog. The fields display the video and audio format types in the file. In order to get more detailed information about the file, select File Information> Show original file information.
2. Select one of the image size options in the Video tab (see Figure 2):
• sub-QCIF (128x96).
• QCIF (176x144).
3. Select the desired target video frame rate from Frame rate combo box (see Figure 2).
4. If you want to add periodic key frames to obtain faster random access, enter the desired key frame period in Intra period edit box (see Figure 2).
5. If the file contains both video and sound, select the AMR bit rate in the Audio tab (see Figure 2).
6. You can set the desired total file bit rate in File bit rate edit box.
This option is useful eg. when there is no fixed size limit for the produced file. When you set the file bit rate, video bit rate is calculated according to the selected AMR bit rate.It is also possible to create video clips for MMS by setting file bit rate. Then, you have to estimate an appropriate file bit rate to fit the whole clip into the limited file size.
7. It is also possible to set the size of the converted file size in Max file size edit box (see Figure 2). You can’t set both file size and file bit rate at the same time.
In MMS, size of a video file can’t exceed a certain value, for example 100 kB, because some WAP gateways might block the transfer of larger files, operators might prefer to limit the file size to reduce air-traffic, or because not all the MMS client and server implementations support large file sizes. That’s why limiting the size of the converted file is useful while generating video clips for MMS. The following paragraphs gives more details how Multimedia converter selects the critical coding parameters when file size is limited.
First, Multimedia converter calculates the total file bit rate in order to convert the whole original file and fit it into the limited size. If the calculated file bit rate is too small, in other words an acceptable quality figure can’t be reached, the conversion will be stopped when the limit is reached. The minimum bit rate to obtain an acceptable quality for video and audio are respectively, 20 kbps and 4.75 kbps.
Then the bit rate for video is calculated by decreasing the selected AMR bit rate from the calculated total file bit rate. If this amount is smaller than the minimum video bit rate, AMR bit rate is dropped until the bit rate for video can be acceptable.
NOTE! When the max file size option is used, the Multimedia Converter selects the coding parameters so that in normal cases the file size limit is not exceeded. In some cases, e.g. due to a complex video clip, this limit can be slightly exceeded. So it is strongly encouraged to check after the conversion the size of the produced file, and if necessary, set the Max file size limit somewhat smaller.
8. You can start the conversion from an offset point. Set the time stamp of the offset in Start time edit box (see Figure 2). The shortcut for this is to keep the CTRL key pressed and slide the original file location indicator to the correct position. This will update the time stamp information in the Start time edit box, too.
9. Click Convert. Enter the name of the converted file in the file save dialog. Then another dialog pops up and shows how the conversion progresses. The file information of the converted file is transferred to Converted file fields on the right side of the dialog.
4. Multimedia Converter Pro v2.0 Console Version
Multimedia Converter Pro v2.0 package contains also a console application. This will allow you to convert large number of files using batch files. When the package is installed, the executable will be copied into the target directory you selected during the installation process. You can use the program from MS-DOS prompt. The following paragraph summarizes the usage instructions of the console version of the Multimedia Converter Pro v2.0.
USAGE: MMConverterCon [options]
-i infile Input file name(required)
-o outfilepre Output file name prefix (required)
Appropriate file extension will be added
by the application.
-v imageSize Video image size [subqcif]
qcif => 176x144
subqcif => 128x96
-br fileBitRate Total file bit rate [76200]
-st startTime Conversion start time in milliseconds [0]
-sl sizeLimit Size limit for the converted file in bytes [0]
-p Turn off user interaction [on]
-h This message
Video options:
-fr frameRate Target frame rate in frames es per second [15]
-intra period Key frame period (sec) [15]
(Set to 0 to disable INTRA frame update)
Audio options:
-amr AMRMode Audio bit rate [7]
0 => 4.75 kbps
1 => 5.15 kbps
2 => 5.90 kbps
3 => 6.70 kbps
4 => 7.40 kbps
5 => 7.95 kbps
6 => 10.2 kbps
7 => 12.2 kbps
2. Abbreviations
3GPP Third Generation Partnership Project
ADPCM Adaptive Pulse Code Modulation
AMR Adaptive Multi-Rate speech codec
API Application Programming Interface
AVI Microsoft Audio-Video Interleaved file format
CD-ROM Read-Only Compact Disc
DCT Discrete Cosine Transform
GSM Global System for Mobile Communication
HSCSD GSM High Speed Circuit Switched Data
HTML Hypertext Markup Language
Hz Hertz, 1/sec
IMA Interactive Multimedia Association
ITU-T International Telecommunication Union, Telecommunication Standardization Sector
kbps kilobits per second
MMS Multimedia Messaging Service
MPEG ISO/IEC Moving Pictures Experts Group
MPG File name extension for MPEG-1 file format
MP3 MPEG-1 Audio Layer 3 audio coding
QCIF Corresponds to image size with width 176 pixels and height 144 pixels
PC Personal Computer
PCM Pulse Code Modulation
RGB Red-Green-Blue colour space
Sub-QCIF Corresponds to image size with width 128 pixels and height 96 pixels
WAV Microsoft waveform audio file format
YUV Colour space, Y is the luminance or gray-scale component, U and V are chrominance or colour difference components
Nokia Corporation 2002. All rights reserved.
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