No audio with WMP for this file.

[Staryon]

Hi all,

Could anybody help me with this?

I can play this H.264 file with Videolan or The KMPlayer just by using their internal decoders.

However, in order to play it with Windows Media Player I installed ffdshow and I can play the file, but with no sound. I even tried installing the K-Lite Codec Pack but still no sound.

I also checked what audio codec is using and apparently is MPEG-2 Audio Layer 2, so I don't know why I cannot hear anything.

Here is the file:
http://luisespinosa.com/temp/a.264


Thanks


:helpful:

[setarip_old]

Hi!

I played your sample under VLC ("Videolan") - and, although an audiotrack appears to have been created, it seems to be silent.

Are you saying that when you play it under VLC, you hear audio?

[nm]

I hear audio with VLC and MPlayer, but the volume level is quite low. MPlayer also seems to require changing the extension to something else than .264 and specifying a framerate, like -fps 30.

The file seems to be MPEG-TS, so maybe changing the extension to .ts would help. ".264" is commonly used for H.264 elementary streams and they don't contain audio.

[Staryon]

Hi!

I played your sample under VLC ("Videolan") - and, although an audiotrack appears to have been created, it seems to be silent.

Are you saying that when you play it under VLC, you hear audio?

Yes, with Videolan I can hear audio.

This file has been generated with a Hikvision capture board and the files are created with that .264 extension. I don't know why.

Still no luck with Windows Media Player...

[setarip_old]

In VLC:

1) From "File" dropdown menu, select "Open File" - and browse to your file

2) Put a checkmark next to "Stream/Save"

3) Click on the "Settings" radiobutton

4) Select "MPEG-1 for "Encapsulation method"

5) Put a checkmarknext to "Video codec" and select "mp1v"
(DO NOT put a checkmark next to "Audio")

6) Put a checkmark next to "File" and enter a new filename

7) Click on "OK", click on "OK"

You will now have an MPEG-1 file with audio, playable in all players - extremely low though the volume is ;>}

[Staryon]

Thanks a lot, setarip_old!

That really worked.

However let me ask you something. Why do you think that happened? Are they doing something wrong when they create that file?

:thanks:

[bond]

.264 is the extension for raw h.264 streams not being inside a container (and therefore they also cant contain any audio stream)

your file is not such a stream, therefore the extension is wrong. instead the file you have is a mpeg-2 transport stream and its correct extension is .ts

try simply changing the extension and i assume it will play fine everywhere (that handles ts, mp2 and h264)

and tell those Hikvision guys that their stuff should output files with correct extensions

[Staryon]

bond, thanks for your reply. Unfortunately changing the extension doesn't resolve the problem and I cannot play it with WMP unless I convert it following setarip_old's steps.

[setarip_old]

Thanks a lot, setarip_old!
That really worked.As always, my pleasure ;>}