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VideoCharge Studio
Release 2.12
Products
Overview
Working with Watermark Master
     Install and Uninstall
     Registration
     First Steps
     Working with Profiles
     Adding Source Files
     Setting Destination Folder
     Resizing Videos and Pictures
     Enhancing Videos and Pictures
     Cropping Videos and Pictures
     Setting Timelines for Videos
     Creating Thumbnails and Grabbing Frames
     Converting Videos and Pictures
     Splitting Videos into Parts
     Batch processing.
     Watermarks
     Video Montage
     Output format settings
         Not to change Original Format File
         AVI, Audio Video Interleaved
         WMV, Windows Media Video
         Mpeg, Moving Picture Experts Group
         Mov, QuickTime Video
         FLV, Flash Video
         SWF, Small Web Format
         BMP, Bitmap Page
         GIF, Graphics Interchange Format
         JPEG, Join Photographic Experts Group
         PNG, Portable Network Graphics
         TIFF, Tagged Image File Format
Advanced Features
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Extras
 
WMV

WMV, Windows Media Video

To generate a WMV (*.wmv, *.asf) file, it is necessary to set the output format properly. For that open the "Profile Settings" dialog window (or make use of the "Properties" window). In the Main section select "WMV, Windows Media Video" from the "Output Format" list:

 

 

 

Video encoding parameters.

 

Go to the Video section. The following parameters are available here:

 

  • Codec - the codec that will be used for compression of the video stream. This list includes all codecs installed on your computer that can be used for encoding video into Windows Media Video format. These codecs are not delivered along with Watermark Master, and we are not responsible for the quality of their work.

 

  • Encoding mode - the video encoding mode. This parameter can take one of the following values:

 

    1. CBR - if selected, the specified bitrate value will be constant over the whole video encoding process. This encoding mode is useful for streaming multimedia content on limited capacity channels since it is the maximum (not the average) bitrate that matters. CBR would not be the optimal choice for storage as it would not allocate enough data for complex segments of video files (resulting in degraded quality) while wasting data on simple segments.

    2. Quality VBR - if selected, the codec will encode the video stream so that its quality will be constant over the whole produced video file. This encoding mode can be recommended, if it is foremost for you to get the specified quality at the output. The disadvantage of Quality VBR encoding is that there's no way to predict the produced file size.

    3. Unconstrained VBR - if selected, the codec will consider the specified bitrate value as the average, and encode the video stream so that the quality will be as high as possible while maintaining the average. A higher bitrate (and therefore more storage space) will be allocated to the more complex segments of video files while less space will be allocated to less complex segments. Thus, actual bitrate at any point of the encoded video stream can vary greatly from the average value.

    4. Contrained VBR - this mode is identical to unconstrained VBR encoding, except that you can specify a maximum bitrate and maximum buffer window. If selected, the codec will use the maximum values to determine how to compress the data. If you set the maximum values high enough, constrained VBR encoding will produce the same result as unconstrained VBR encoding.

    5. MBR - this mode is identical to CBR encoding, except that the produced video will include several encoded video streams, each with different bitrate settings. When the produced file is read, the reader will determine which stream to use based on the available bandwidth. MBR encoding mode is useful when you want to encode content for a variety of playback scenarios.

 

(Для Encoding Mode добавить ссылки на параметры: Bitrate, etc)

 

  • Bitrate - the number of bits used for representation of one second of the encoded video stream. The higher its value, the larger the produced file size and the higher the produced file quality. We guess the optimal value can be found in an experimental way only. However, it is necessary to remember that the ratio between the produced file size and quality also depends on the selected frame rate and frame size.

 

  • VBR quality - the quality of the produced file. This parameter is only available for Quality VBR encoding mode. It can take values from 0 (minimum quality) to 100 (maximum quality).

 

  • Multiple bitrate - the sequence of bitrate values divided by semicolons. This parameter is only available for MBR encoding mode. For example, the following sequence of values

 

512;256;128

 

means that the produced file will include three encoded video streams: with 512, 256 and 128 kbps bitrate.

 

  • Key frame rate - the rate with which key frames are created. The higher its value, the larger the produced file size. However, a too small value may result in quality loss and difficult navigation through the produced file.

 

  • Two-pass encoding - if enabled, the video stream is analyzed during the first pass, and then encoded in the second pass based on data gathered in the first pass. Two-pass encoding can result in better quality of the produced file, because the codec can allocate the bits more effectively within the window specified by the buffer. However, two-pass encoding takes longer because the codec goes through the video stream twice.

 

  • Smoothness - the minimal quality of the produced file. In the event that the specified bitrate is not enough to obtain the given quality, some video frames will be removed to compensate the lack of bitrate, which in turn may result in uneven playback.

 

 

Audio encoding parameters.

 

Go to the Audio section. The following parameters are available here:

 

  • Codec - the codec that will be used for compression of the audio stream. This list includes all codecs installed on your computer that can be used for encoding audio into Windows Media Audio format. These codecs are not delivered along with Watermark Master, and we are not responsible for the quality of their work.

 

  • Audio Format - the audio format supported by the selected audio codec.


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  Example
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How to put a text onto an image and fill it with a gradient
 


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