[Avanti FFmpeg] Best FLV conversion Templates

[Marmz]

Hi!
I'm trying to convert AVI to FLV, ang get the best quality/lower file-size Avanti settings...

In particular, i need 2 templates:


1) frame-size = original

2) smaller frame-size (i.e. width=400) and very light file-size... but still watchable


Which are your preferred settings?
Maybe someone could POST/LINK his templates?

TY guys.

[LigH.de]

There are no "best". Only "good enough that you don't recognize the loss". And that may be different for every movie you try to convert. You may even have to expect a bigger copy than the original, if the original AVI already had a bad quality with a lot of compression artefacts.

FLV is only a container. But it supports a few more content formats than e.g. MP4. Still, if you can watch AVC video and AAC audio, I would recommend using the MP4 container instead of FLV.

[Marmz]

Well, i'm trying to get it with MP4 format.

And now comes another problem:

I just tried different settings but, when i watch the resulting mp4 file with some Flash Embed Video Player, it doesn't bufferize my file so, if my file is somethin like 200MB, i must wait until the player loads ALL the video, without buffering..

If i watch some MP4 downloaded from the internet, buffering works normally.

What's wrong??
If i watch it locally (using VLC player), i got no problems..

[LigH.de]

The MP4 container format can have some HTTP streaming supporting data (like the "moov" chunk with technical attributes, maybe also the keyframe index) placed at the beginning of the file or at the end. You may tell MP4 multiplexers (e.g. MP4Box: should be default behaviour; ffmpeg: "-movflags faststart") to arrange the output suitable for HTTP streaming; but that may require an existing preliminary MP4 file to make a HTTP streaming optimized MP4 file from, it may be hard for a converter to immediately produce one during a conversion, not yet knowing all positions of keyframes before the conversion finished. Unfortunately, I don't know how much you can customize command line options in Avanti (Handbrake seems to support a "Web optimization" flag).

[Marmz]

Well.. first of all i wanna thank you for answering

I must point out that Avanti is only a GUI for FFmpeg and it accepts additional parameters to the program executable.
So i tried with "-movflags faststart", and it worked fine! Now i get nice web video buffering.
Obviously, this extra option makes the conversion a bit slower, so i'm trying with "-preset faster" or "-preset veryfast" :P