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Questions tagged [flv]

Flash Video is a container file format used to deliver video over the Internet using Adobe Flash Player versions 6–11. Flash Video content may also be embedded within SWF files.

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 latter 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 currently developed by Adobe Systems. FLV was originally developed by Macromedia.

Flash Video has been accepted as the default online video format by many sites. Notable users of it include YouTube, Hulu, VEVO, Yahoo! Video, metacafe, Reuters.com, and many other news providers.

The standards documentation for BBC Online states that the BBC now preferentially accepts Flash videos for submission, to the disadvantage of other formats previously in use on its sites such as RealVideo or WMV.

Flash Video FLV files usually contain material encoded with codecs following the Sorenson Spark or VP6 video compression formats. The most recent public releases of Flash Player (collaboration between Adobe Systems and MainConcept) also support H.264 video and HE-AAC audio. All of these compression formats are currently restricted by patents.

Flash Video is viewable on most operating systems via the Adobe Flash Player and web browser plugin or one of several third-party programs. Apple's iOS devices do not support the Flash Player plugin and so require other delivery methods such as provided by the Adobe Flash Media Server.

More information at http://en.wikipedia.org/wiki/Flash_Video

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Library for FLV/F4V conversation in C# .NET?

Is there any library that can covert input video (of some specific video files) to f4v or flv programatically in c# .NET? Thanks in advance.
totocaster
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MobileVLCKit not compiling

I am trying to compile MobileVLCKit based on instructions in this page: https://wiki.videolan.org/VLCKit/ When I run ./buildMobileVLCKit.sh It start doing some thing and the download about 200 MB and finally shows below error: The following build…
Husein Behboudi Rad
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Play FLV from ByteArray in Flash Player

I have a flash video file (FLV) stored in the ByteArray object and would like to play this video. Is there any way to achieve it? Maybe using Alchemy? Thank you!
bartekb
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Is it possible to do Flash pseudo streaming with S3?

I've been using S3 to store and serve FLV and MP4 videos. It works great, but the content is progressively downloaded. I was wondering if it is possible to get so-called "pseudo streaming" to work with S3. Pseudo streaming allows viewers to seek…
Jim Jones
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How to change sample rate in FFMPEG

I use FFMPEG since few moments now and after asking for help here a first time about that, i was able to discover this command line that i use since then, for the conversion of .MP4 video to .FLV : ffmpeg -i namefile.mp4 -c:v libx264 -crf 19…
John_D
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Flv to mp4 conversion

I want to play the flv files in Android. So what I thought is to convert the flv file to mp4 or 3gp(for which there is a decoder in Android). OpenCore can be used to convert. I have looked into opencore code, there is a class in opencore…
Vinay
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RTMP_Write function use

I'm trying to use the librtmp library and it worked pretty well to pull a stream. But now I am trying to publish a stream and for that I believe I have to use the RTMP_Write function. What I am trying to accomplish here is a simple c++ program that…
Bilthon
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Caching larger flv files 5mb +

I'm using flowplayer, and told .htaccess to cache flv files for 30 minutes. When the files are under 5mb it caches, if over that, it doesn't. How do I force cache like youtube does? 5mb from what I've found out is a browser default. If youtube is…
Darius
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get flv video length

While i try to get length of a flv video file i get 0 second where as it only happens with some videos, else my function works fine. below is my code.
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How is flv format contained in RTMP?

I'm using wireshark to inspect the packets but I'm confused by how exactly flv format is followed in RTMP streaming. FLV doc specifies the tag to be: tag type, datasize, timestamp, timestampExtended, streamID, VideoTagHeader, but I'm getting [fmt] …
TurtleTread
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Mix Audio tracks with offset in SOX

From ASP.Net, I am using FFMPEG to convert flv files on a Flash Media Server to wavs that I need to mix into a single MP3 file. I originally attempted this entirely with FFMPEG but eventually gave up on the mixing step because I don't believe it it…
Laramie
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How can i smoothly playback a FLV at different speeds?

I will need to display the frames of an FLV at different rates. Here are some examples: the user will 'scrub' through the flv frames(front/back) the flv will need to play at half the speed on a user interaction. Currently I'm using LoaderMax and…
George Profenza
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YouTube live says not receiving data

So, I'm using ffmpeg. I can stream videos to YouTube live I've downloaded from the internet successfully using this command: ffmpeg -re -i "C:\video.flv" -c:v libx264 -preset slow -crf 18 -c:a copy -f flv "rtmp://a.rtmp.youtube.com/live2/xyz" When…
Steve Lobdell
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Extract information from flv file using C#

Is there a code help to extract head information and target frames from flv file using C#?
Eyla
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Calculate width and height of Flv and Swf using C#

I can't work out how to calculate the width and height dimensions of a .flv video or .swf file using C# .NET.
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