[MPlayer-cygwin] help with 3gpp2 files (no audio support?)

[dnwo at xtra.co.nz]

Hi,

I've looked through the documentation and googled a bit but I can't seem to
find a remedy to my problem - I have a number of *.3g2 (3gpp2) files that
I've got from various cellular phones, but when I try to use mencoder to
convert them to an avi programmatically using this set of command line
switches:

Mencoder.exe test.3g2 -of avi -o test.avi -oac lavc -lavcopts
acodec=mp3:abitrate=64 -ovc lavc -lavcopts
vcodec=mpeg4:mbd=2:vme=5:v4mv:vbitrate=850 -ofps 12.5 -info artist=syzmk.com
-ffourcc divx

It works ok, except that the audio doesn't decode, and I see the error
"Cannot find codec for audio format 0x6134706D" in the console output - if
anyone can suggest a way to get round this (could I perhaps alter the
command line so that this will work?) - playing the original files with
quicktime gives me audio playback so I don't believe the videos are corrupt.
If I try to play the video with mplayer then it plays fine but again it has
no sound...

Any help or directions would be great as I'm a bit lost in the world of
video encoding/decoding - I can supply sample files for testing too if
anyone thinks that might help - they're very small (~ 90K).

Cheers,

 - Alex

-- dump follows --
 
C:\Program Files\mplayer>mencoder test.3g2 -of avi -o test.avi -oac lavc
-lavcop ts acodec=mp3:abitrate=64 -ovc lavc -lavcopts
vcodec=mpeg4:mbd=2:vme=5:v4mv:vbit
rate=850 -ofps 12.5 -info artist=syzmk.com  -ffourcc divx MEncoder
dev-CVS-050626-17:02-3.4.2 (C) 2000-2005 MPlayer Team
CPU: Intel  (Family: 6, Stepping: 8)
Detected cache-line size is 64 bytes
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0 Compiled
with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with
--disable-runtime-cpudetection.
File not found: 'frameno.avi'
Failed to open frameno.avi
success: format: 0  data: 0x0 - 0x189ee
ISO: File Type Major Brand: 3GPP Profile 2 QuickTime/MOV file format
detected.
--------------
MOV track #0: 16 chunks, 175 samples
MOV: Found H.263 decoder atom d263 (15)!
MOV: Vendor: noki H.263 level: 0 H.263 profile: 10 Image size: 128 x 96 (24
bpp) Display size: 128 x 96
Fourcc: s263  Codec: ''
--------------
MOV track #1: 15 chunks, 0 samples
Audio bits: 16  chans: 2  rate: 8000
MOV: Found MPEG4 audio Elementary Stream Descriptor atom (211)!
Fourcc: mp4a
--------------
MOV: longest streams: A: #1 (15 samples)  V: #0 (175 samples)
VIDEO:  [s263]  128x96  24bpp  4.001 fps    0.0 kbps ( 0.0 kbyte/s)
[V] filefmt:7  fourcc:0x33363273  size:128x96  fps: 4.00  ftime:=0.2500
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
FAAD: Failed to initialize the decoder!
ADecoder init failed :(
ADecoder init failed :(
Cannot find codec for audio format 0x6134706D.
Read DOCS/HTML/en/codecs.html!
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1  (-1=autodetect) osd: 1
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected
video codec: [ffh263] vfm:ffmpeg (FFmpeg H.263+ decoder)
==========================================================================
Forcing output fourcc to 78766964 [divx] Writing AVI header...
ODML: Aspect information not (yet?) available or unspecified, not writing
vprp h eader.
VDec: vo config request - 128 x 96 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1.45:1 -
prescaling to correct movie aspect.
videocodec: libavcodec (128x96 fourcc=78766964 [divx]) High quality encoding
selected (non real time)!
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
ODML: Aspect information not (yet?) available or unspecified, not writing
vprp h eader.

2 duplicate frame(s)!
Pos:  10.6s    131f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [98:0]]
1 duplicate frame(s)!
Pos:  14.2s    175f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [99:0]
Flushing video frames

Writing AVI index...
Fixing AVI header...
ODML: Aspect information not (yet?) available or unspecified, not writing
vprp h eader.

Video stream:   99.448 kbit/s  (12430 bps)  size: 177017 bytes  14.240 secs
175
 frames