[Raspberry Pi]Compile your own g729 codec

Qnewbie

Following the link:
http://smallhacks.wordpress.com/ ... r-other-arm-device/
Please note: G729 is governed by a patent license. More info: http://www.linphone.org/eng/documentation/dev/bcg729.html

In raspberry:

1. mkdir /usr/src/bcg729
   
2. cd /usr/src/bcg729
   
3. wget https://bitbucket.org/samm_hg/asterisk-g72x/get/bcg729.tar.gz
   
4. tar xvf bcg729.tar.gz
   
5. cd samm_hg-asterisk-g72x-7c924918dff5

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Edit the build-portable.sh file and change according to your own setting:

1. # Asterisk 1.8
   
2. inc=/asterisk_source_directory/include
   
3. def=-DG72X_ASTERISK=asterisk_version

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Uncomment the compiler option:

1. #o="-march=barcelona -msse -msse2 -msse3 -O3 -fomit-frame-pointer -fPIC"

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and change it to raspberry pi option:

1. o="-march=armv6zk -mcpu=arm1176jzf-s -mfloat-abi=hard -mfpu=vfp -O3 -Wall"

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Afterwards, you can simply compile:

1. ./build-portable.sh

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To check if your codec is working(asterisk1.8 or later),

1. ./build-astconv.sh
   
2. cp /var/lib/asterisk/sounds/en/demo-thanks.gsm /tmp/demo-thanks.gsm
   
3. rasterisk -x "file convert /tmp/demo-thanks.gsm /tmp/demo-thanks.sln"
   
4. ./astconv ./codec_g729.so -e 160 /tmp/demo-thanks.sln demo-thanks.g729

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If everything works:

1. cp codec_g72*.so /usr/lib/asterisk/modules/

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Qnewbie

Since it depends on your own asterisk version(defined in build-portable.sh). It is hard to share codec_g72*.so.

Qnewbie

The codec might be OK.

build-astconv.sh requires the version for asterisk is 1.8 or latter.

Try something like

1. module load codec_g729.so

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in asterisk's cli.