Use linux command in Android NDK

Question

I have build ffmpeg for android using NDK as mentioned here.

What I want to do is create a video file using image list as mentioned in here.

ffmpeg -i ffmpeg_temp/%05d.png -b 512 video2.mpg

I want to know how can I run this command in my C class file.

Thanks in advance.

score 0 · Answer 1 · answered Dec 06 '12 at 16:05

0

read the ndk docs

edit your Android.mk so that you produce an executable 'ffmpeg'

run ndk-build

locate the 'ffmpeg' executable on your PC ( will be in folder like ' obj/local/armeabi-v7a/'

use adb to move 'ffmpeg' to the phone - you may have to mount something in order to do this

on phone, move 'ffmpeg' executable to /data/local/tmp

on phone, get a shell and invoke the CLI expression like you mention:

/data/local/tmp/ffmpeg -i ffmpeg_temp/%05d.png -b 512 video2.mpg

it should execute on the phone like it runs on any other linux system

answered Dec 06 '12 at 16:05

Robert Rowntree

I want to use this inside my C class file. – Chrishan Dec 07 '12 at 11:20
procedure given applies as well to build where c-entry point is used to call ffmpeg from java jni interface. – Robert Rowntree Dec 07 '12 at 14:42

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