[MEncoder-users] Audio Sync issues

[Jeff Cranmer]

> -----------------
> 
> One difference I notice is that you start out with an mpeg container. I have
> always used the transport stream container (.TS) which might be something to
> try. I doubt that the harddup will make a lot of difference.
> 
> One thing I notice is that you are converting to PCM. Any particular reason
> why you are keeping the original audio? You are certainly not getting a
> quality boost here - just a bigger file. The PVR captures either in AAC or
> AC3, both lossy formats and doing an -oac copy will give you a smaller file
> with equal quality. But maybe this is a limitation of your playback device?
> 
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Here's the log when I use -oac copy, which is why I was using -oac aac
instead.

I also noting that there is a modification being made, interpreting the
input fps as 59.940 instead of 60.000.  Could this be the reason for the
audio sync problem?

MEncoder dev-SVN-r33321-4.5-openSUSE Linux 11.3 (x86_64)-Packman (C)
2000-2011 MPlayer Team
success: format: 0  data: 0x0 - 0x50c0b9a0
TS file format detected.
VIDEO H264(pid=4113) AUDIO AAC(pid=4352) NO SUBS (yet)!  PROGRAM N. 1
FPS seems to be: 60.000000
[V] filefmt:29  fourcc:0x10000005  size:1280x720  fps:60.000
ftime:=0.0167
Input fps will be interpreted as 59.940 instead.
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 2 ch, s16le, 0.0 kbit/0.00% (ratio: 0->192000)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4
Audio))
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [filmdint=io=30:24/fast=0]
Opening video filter: [tinterlace=4]
Opening video filter: [scale w=720 h=480]
Opening video filter: [harddup]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
Forcing output FourCC to 44495658 [XVID].
Audio format 0x4134504d is incompatible with '-oac copy', please try
'-oac pcm' instead or use '-fafmttag' to override it.

Jeff