[Solved] Convert .mp4 file to .3gp

[laplume]

Hello, I was trying to convert a mp4 file to .3p using the following script:

#!/bin/bash
for f in *.mp4
do
name=`echo "$f" | sed -e "s/.mp4$//g"`
ffmpeg -i "$f" -vcodec h263 -s qcif -r 15 -b 100k -acodec libfaac -ac 1 -ar 32000 -ab 64k -f 3gp "$name.3gp"
done

but the conversion didn't even start as the output was
Unknown encoder 'libfaac'

I have taken a look at the ffmpeg package installed by default in Salix and found that libfaac is disabled. I assume that by enabling it the script should work but which is the command that makes ffmpeg enable libfaac?
Thanks in advance for support.
Antonio

[gapan]

What if you use -acodec aac ?

[laplume]

What if you use -acodec aac ?

Thanks for the info gapan, tried to run with aac but output gave me
Unknown encoder 'aac'

Seems the ffmpeg package provided with Salix 13.0.2 is not containing the aac encoder. Any means to add it? Or if I set it to Vorbis what parameters should I choose?
The output I had with vorbis was following:
Error while opening encoder for output stream #0.1 - maybe incorrect parameters such as bit_rate, rate, width or height

Thanks for advice
Rgds
Antonio

[gapan]

You should have stated in your post that you are running Salix 13.0.

The ffmpeg version in salix 13.0 does not have encoding support for aac audio. However it has support for 3gp and 3g2 audio formats, which, if you want to make a 3gp file, would work for you.

Type

Code: Select all

ffmpeg -formats

to view a list of all available formats.

[laplume]

You should have stated in your post that you are running Salix 13.0.

Sorry gapan I forgot to mention that.
Anyway I tried the script on another desktop running 13.37 and it eventually did the job.

Just for info the script looks now like this:

Code: Select all

#!/bin/bash
for f in *.mp4
do
    name=`echo "$f" | sed -e "s/.mp4$//g"`
    ffmpeg -i "$f" -vcodec h263 -s qcif -r 15 -b 100k -acodec aac -strict experimental -ac 1 -ar 32000 -ab 64k -f 3gp "$name.3gp"
done

Thanks for support, I'll mark the thread as solved.
Antonio