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[nagsh]

hi
By default ffmpeg not process mp4 format. Therefore in some mp4 files after uploading only play sound and not show the video.
please solution.

[PHPVibe A.]

Hi,

I'm not sure, doesn't sound like a script problem.
It depends on the videos and ffmpeg, not all video convert correctly.
Show me a link to a video not playing.

[nagsh]

for example:
http://www.clipyar.com/video/856/

[PHPVibe A.]

This video has sound for me, it's some guy talking a weird language after some sounds in beginning.

[nagsh]

This is video!
please download the video by IDM (internet download manager) and play with windows player.
After a little searching, I realized that two codec of MP4 format is available:
  1-MP4 videos using the H.264 video codec and the AAC audio codec
  2-MP4 videos using the MPEG-4 video codec and the MPEG-4 AAC audio codec
Only videos by Type 1 (H.264 codec) can play Correctly.
To solve this problem MPEG-4 codec should convert to H.264 Such as flv,avi,...
What to do for solve the problem. Please advice

[PHPVibe A.]

It works fine for me in kmplayer.
They are differences in encoding, for sure.
But those formats are not web playable, embeddable, we support web playable formats, you can;t embed avi in a page, and you can't play flv on mobile (80% of video traffic is mobile) so .mp4 is the only universal option.

[nagsh]

To solve this problem MPEG-4 codec should convert to H.264 Such as flv,avi,...
What to do for solve the problem. Please advice :confused:

[PHPVibe A.]

I'm not sure you realise that .avi don't play on the web at all. And flv only work in flash browsers, and since 80% of the video visits are mobile, they will not work for 8/10 of your visitors. This is why we use .mp4
I think your problem is in upgrading/changing the codecs on your pc, it's best.

https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats

[nagsh]

I realise that .avi don't play on the web at all, but i mean is that:
As avi,flv,...   mp4(MPEG-4) must convert to MP4(H264) too.
ffmpeg in default not convert mp4(MPEG-4) to MP4 (H264).
how to fix setting for ffmpeg that convert mp4(MPEG-4) to MP4 (H264)

[PHPVibe A.]

What is your encoding command, did you change it?
You can experiment with Settings -> FFMPEG conversion as much as you want until you get the result you desire, there are millions of ffmpeg tips and tricks on the web.