Mencoder 3gp help

[hss2293]

I am using mencoder to convert video into 3gp but it does not play on my phone.. I am using following command

mencoder filename.avi -o filename.3gp -ovc xvid -xvidencopts bitrate=162 -vf scale=320:240 -oac faac -srate 44100

Please correct me where i am wrong..

[Baldrick]

I would use Mobile Media Converter. It has good 3gp presets.

[hss2293]

I am using a vps for converting videos.. Is it possible to install mobile media converter in that ? Its better if you help me using mencoder command.

[El Heggunte]

I suppose you should/must add the option -of lavf to your command line. IIRC, by default Mencoder uses the AVI container, regardless of the file extension you choose.

[hss2293]

well i have also tried adding that to command line -of lavf -lavfopts format=3gp but still not working

[El Heggunte]

Try remuxing with MP4Box.

[hss2293]

Can mp4box be used to convert videos ?

[bat999]

Can mp4box be used to convert videos ?

No.

You need to study the MediaInfo properties of a file that does play OK on your phone.
Then try to use the same or similar properties.

[hss2293]

I need to get AAC (LC) audio in file in order to play it in my phone but the above mencoder command is giving me AAC audio.. How can i select aac-lc using mencoder ?

[El Heggunte]

I guess you'd better upload a copy of a working sample file to this forum...

I wasn´t aware Mediainfo makes distinction between normal AAC (Low Complexity) and "pure" AAC
( whatever this latter means ).

BTW, can't you use ffmpeg instead of Mencoder, for example?
Or encode audio and video separately, then remux with MP4Box or L-Smash?
Also, the manual for your phone doesn't say a word about its supported file types?

[hss2293]

By using ffmpeg i m not getting better quality which mencoder is giving me.. I have tried using -nosound in mencoder to check whether video is working or not but it gives me an error unable to play media file. First of all i want to fix the video problem because atleast video should play in my phone..
I have uploaded the sample of file working fine in my phone

[El Heggunte]

Here is what Mediainfo says about your "sample.3gp":

Video
ID                                       : 1
Format                                   : MPEG-4 Visual
Format profile                           : Simple@L1
Format settings, BVOP                    : No
Format settings, QPel                    : No
Format settings, GMC                     : No warppoints
Format settings, Matrix                  : Default (H.263)
Codec ID                                 : 20
Duration                                 : 2mn 0s
Bit rate                                 : 134 Kbps
Width                                    : 320 pixels
Height                                   : 240 pixels
Display aspect ratio                     : 3:2
Original display aspect ratio            : 4:3
Frame rate mode                          : Constant
Frame rate                               : 14.985 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.116
Stream size                              : 1.92 MiB (73%)
Writing library                          : Lavc52.22.3

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 2mn 0s
Bit rate mode                            : Variable
Bit rate                                 : 48.0 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 22.05 KHz
Compression mode                         : Lossy
Stream size                              : 707 KiB (26%)

So, it has a LOW frame rate, it's NOT "mpeg-4 Advanced Simple Profile", and the audio samplerate = 22.05kHz

[bat999]

Here is my attempt with MEncoder...

mencoder filename.avi \
-vf scale=320:240 \
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate=140 \
-af lavcresample=22050:channels=2 \
-oac lavc -lavcopts aglobal=1:acodec=libfaac:abitrate=48 \
-of lavf -o output.3gp

@ubuntu:~$ mediainfo output.3gp
General
Complete name           : output.3gp
Format                  : MPEG-4
Format profile          : 3GPP Media Release 4
Codec ID                : 3gp4
File size               : 3.36 MiB
Duration                : 2mn 31s
Overall bit rate mode   : Variable
Overall bit rate        : 186 Kbps

Video
ID                      : 1
Format                  : MPEG-4 Visual
Format profile          : Simple@L1
Format settings, BVOP   : No
Format settings, QPel   : No
Format settings, GMC    : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID                : 20
Duration                : 2mn 31s
Bit rate mode           : Variable
Bit rate                : 145 Kbps
Maximum bit rate        : 800 Kbps
Width                   : 320 pixels
Height                  : 240 pixels
Display aspect ratio    : 4:3
Frame rate mode         : Constant
Frame rate              : 29.970 fps
Color space             : YUV
Chroma subsampling      : 4:2:0
Bit depth               : 8 bits
Scan type               : Progressive
Compression mode        : Lossy
Bits/(Pixel*Frame)      : 0.063
Stream size             : 2.62 MiB (78%)
Writing library         : Lavc54.23.100

Audio
ID                      : 2
Format                  : AAC
Format/Info             : Advanced Audio Codec
Format profile          : LC
Codec ID                : 40
Duration                : 2mn 31s
Bit rate mode           : Variable
Bit rate                : 36.2 Kbps
Maximum bit rate        : 48.0 Kbps
Channel(s)              : 2 channels
Channel positions       : Front: L R
Sampling rate           : 22.05 KHz
Compression mode        : Lossy
Stream size             : 670 KiB (19%)

[hss2293]

@bat999 your file is not working in my phone.. Only audio is working.. Video is not working..

[El Heggunte]

Encode a video sample at 14.985 fps, and test.
Then try higher frame rates: 15fps, 18fps, 24fps.
I'm afraid 15fps is the upper limit for your phone, though.

[hss2293]

Not working at even low framerates.. I have converted the file firstly through mencoder but it didn't worked then i used

ffmpeg -i file.3gp -vcodec copy -acodec copy newfile.3gp

Now the same file is working in my phone.. Why its not working when i converted it through mencoder at first stage ?

[El Heggunte]

I have converted the file firstly through mencoder but it didn't worked then i used

ffmpeg -i file.3gp -vcodec copy -acodec copy newfile.3gp

Now the same file is working in my phone.. Why its not working when i converted it through mencoder at first stage ?

Because Mencoder's muxers are not exactly identical to the ffmpeg's muxers.
As a side note --- ffmpeg IS NOT "perfect" either. This is the reason why I suggested MP4Box and L-Smash, for example.

[bat999]

... try higher frame rates: 15fps...

mencoder filename.avi \
-vf scale=320:240 \
-ofps 15 \
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate=140 \
-af lavcresample=22050:channels=2 \
-oac lavc -lavcopts aglobal=1:acodec=libfaac:abitrate=48 \
-of lavf -o output2.3gp

[hss2293]

Now is it possible through mencoder or not ?

[hss2293]

@bat999 i have already tried changing the frame rates but not working..

[El Heggunte]

Now is it possible through mencoder or not ?

Unless you know what to modify in the source-code of Mencoder,
so that its MOV/MP4/3GP muxer behaves as well as ffmpeg's muxers,
the answer is "nope".

BTW, if the problem currently can be solved only in two or more steps,
why do you insist on using Mencoder only

[hss2293]

I don't know whats to be modified.. Thats why i am here asking for help

[hss2293]

BTW, if the problem currently can be solved only in two or more steps,
why do you insist on using Mencoder only

I want single step conversion with good video quality at low size.. I am using mencoder because of this reason and i can add watermark easily using -sub option . Any alternative which can give me good quality as mencoder with watermark ?