ASF to FLV - Convert video online
Conversion Results:
| # | Output File | Source File | Action |
|---|
How to convert ASF to FLV:
1. Click the "Choose Files" button to select multiple files on your computer or click the "URL" button to choose an online file from URL, Google Drive or Dropbox. The source file can also be audio format. Video and audio file size can be up to 200M. You can use file analyzer to get source video's detailed information such as video codec, duration and bitrate.
2. Set target video format, bitrate, aspect ratio, frame size and frame rate. All audio streams will be removed if the "Mute" option is checked. The target video format can be MP4, AVI, FLV, MPG, MKV, WMV, M2TS, WEBM, ASF, MOV, M4V, RM, VOB, OGV or GIF.
3. Click the "Convert Now!" button to start batch conversion. It will automatically retry conversion on another server if one fails, please be patient while converting. The output files will be listed in the "Conversion Results" section. Click icon to show file QR code or save file to cloud storage services such as Google Drive or Dropbox.
ASF vs FLV:
| Name | ASF | FLV |
| Full name | Advanced Systems Format | Flash Video |
| File extension | .asf | .flv, .f4v, .f4p, .f4a, .f4b |
| MIME | video/x-ms-asf, application/vnd.ms-asf | video/x-flv |
| Developed by | Microsoft | Adobe Systems |
| Type of format | Digital container format | Media container |
| Introduction | Advanced Systems Format (formerly Advanced Streaming Format, Active Streaming Format) is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media. ASF is part of the Media Foundation framework. | Flash Video is a container file format used to deliver video over the Internet using Adobe Flash Player version 6 and newer. Flash Video content may also be embedded within SWF files. Flash Video used to be the de facto standard for web-based streaming video. Notable users of it include Hulu, VEVO, Yahoo! Video, metacafe, Reuters.com, and many other news providers. |
| Technical details | The format does not specify how the video or audio should be encoded; it just specifies the structure of the video/audio stream. This is similar to the function performed by the QuickTime, AVI, or Ogg container formats. One of the objectives of ASF was to support playback from digital media servers, HTTP servers, and local storage devices such as hard disk drives. | There are two different video file formats known as Flash Video: FLV and F4V. The audio and video data within FLV files are encoded in the same manner as they are within SWF files. The F4V file format is based on the ISO base media file format and is starting with Flash Player 9 update 3. Both formats are supported in Adobe Flash Player and developed by Adobe Systems. |
| Associated programs | Windows Media Player | Adobe Flash Player |
| Sample file | sample.asf | sample.flv |
| Wikipedia | ASF on Wikipedia | FLV on Wikipedia |