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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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The Composition Time(CTS) when wrapping H.264 NALU's

The h.264 hardware compression card procedures NALU's from captured video. I am trying to wrap the NALU's into FLV and I almost succeed. I don't know how to fill the Composition Time field in FLV for each NALU. According to the FLV spec,…
Mr.Wang from Next Door
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H.264 / FLV best practices for HTML

I run a website that has as part of it about 700 reference videos (And no, it's not porn -- get your mind out of the gutter :-) ). The videos are currently in FLV format. We use the JWPlayer to render those videos. IIS6 hosted. Everything works…
Steve Murch
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FFMpeg working in command line but not in PHP script

I am using FFMpeg to convert videos and it is working fine from the command line. I am using the following command: ffmpeg -i input.avi -ab 56 -ar 44100 -b 200 -r 15 -s 320x240 -f flv output.flv However, when I run the command using PHP script, the…
Jitendra Prajapati
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ffmpeg: convert audio-only flv to swf

My Flex application records audio-only FLV files using red5--I'd like to convert these to SWF files so I can embed them in other SWF files. (I could also convert to MP3 and then embed them into SWFs myself, but I'd prefer a one step…
Michael Brewer-Davis
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How to do Flash pseudo-streaming?

I need to build something that starts serving a H.264 encoded video to a flash player halfway through the file (to support skipping to a point in the video that has not been buffered yet). Currently, the videos are in the FLV container format, but…
Sietse
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How do streaming videos work?

So I have some videos in .flv format which I'd like people to be able to view from my site, without being able to download them. So far Flowplayer seems like the best choice for the actual flash player. However, I've been looking into this video…
Ali
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Adobe connect video: FLV to MP4 (export, convert)

I would like to convert an adobe connect video from .flv in the downloaded zip to .mp4. I have already done the steps explained in this question and answer, however I get .flv files organised like this inside the .zip: Moreover, I know that ffmpeg…
Guillaume Chevalier
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Flash - recording from user's webcam

I've seen a few sites that have a flash app which takes video from the users webcam and manipulates it. One example is the flash barcode reader http://www.renaun.com/flex2/BarcodeReader/BarcodeReader.html . I want users to be able to submit 10-15…
Adam Davis
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Converting Flv videos to mp4 using Xuggle?

How can flv videos be converted to Mp4 format using Xuggle? Which api methods do I need to look into? Any links / pointers would be helpful
Ali
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How to run FFMPEG commands in Django?

I've spent several weeks of my free time trying to figure out this issue or search for it to no avail and I'm not sure if it is a Python or Django issue and was wondering if anyone could guide me in the right direction. I understand uploading video…
Jack
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Playing FLV/HTTP in Android application

In my application, I need to play FLV/HTTP streams on Android (2.x+). libvlc supports this function: I've tested my FLV streams with VLC-android player, and it seems to work. But a year ago, one of the developers described is as follows: VLC on…
some.birdie
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What transcoding services can people recommend?

A client of mine needs to accept a bunch of different video files and convert them to FLV. My experience with FFMEG on a previous project has highlighted that there will be some troublesome files. Depending on the price my client will pay for a…
Adrian Lynch
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Programmatically convert flv to mp4 on iOS

In our iOS app, we will receive flv**(Container)** file having video and audio streaming something like this Input #0, flv, from 'test.flv': Metadata: streamName : flvLiveStream encoder : Lavf55.12.100 Duration:…
Amitg2k12
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How can I automatically convert all MP4 files to FLV with ffmpeg?

How can I automatically convert all MP4 files to FLV in a specific folder? ffmpeg -i VID00002.MP4 -ar 44100 test.flv Is there a way to queue these tasks, assuming that I don't know the file names? If I need to run any scripts (I'm familiar with…
CIF
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calculate flv video file length ? using pure php

What is the best way to calculate the length of flv file using php with out external dependencies like ffmpege because client site run on shared hosting, itry http://code.google.com/p/flv4php/, but it extract metadata and not all video contain…
shox
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