![]() Now when you convert a video using FFMPEG, it will figure out what format to use based on the output file extension (e.g. The audio-codec used is generally MP3, but for the H.264 video it is AAC or MP3 (AAC is used in most MP4 files, such as podcasts from iTunes). ![]() So it’s up to you which you target, but it will impact on what you build into FFMPEG. The F4V extension is really for files that use the H.264 codec in an MP4 container. Technically the extension is irrelevant, what we are talking about here is the video codec used, which is either the Sorenson H.263 codec (Flash Player 6+), On2’s VP6 (FP 8), or H.264 (FP 9 update 3). Why? In short, I want to convert almost any video format to… FLV/F4V. ![]() Hopefully they’ll save someone a small nightmare.ĭisclaimer: I haven’t written C code since I was in my teens, and apart from some Objective-C from the comfort of XCode, I haven’t really done a whole lot of GCC compiling on any system, so this may not be the best way to do any of this.įirst of all, what are we doing? Compiling a portable FFMPEG binary from source so that we can include the exact libraries we want and run FFMPEG from another application. I was up extremely late last night figuring this out, so I made some rough notes as I went along.
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