[guardian-dev] android-ffmpeg-java: FileNotFoundException: This file can not be opened as a file descriptor; it is probably compressed

Mon Jul 22 21:05:05 EDT 2013

For future reference, this should be ported to use the 'assets' folder, then
you don't have to use the .mp3 trick.  GPG and LilDebi are two apps that do
this using assets, if you want example code.  Its been working quite smoothly
there.  You can make a symlink in the project's assets/ folder and have it
point to where the ffmpeg and sox binaries get built.

.hc

On 07/22/2013 03:21 PM, Josh Steiner wrote:
> Ahh, it was that stupid workaround we have to do to stop Android from
> compressing stuff in res/raw by renaming ffmpeg to ffmpeg.mp3. .. I missed
> that step when setup a new build.
> 
> For posterity, what made this confusing to debug is this line:
> 
> is = context.getResources().openRawResource(R.raw.ffmpeg);
> 
> R.raw.ffmpeg should be loading ffmpeg.mp3, but it doesn't really read that
> way at a skim, so I naively had it just named res/raw/ffmpeg
> 
> The file *must* be renamed ffmpeg.mp3 (and sox.mp3) to prevent aapt from
> compressing the file when building your apk.
> 
> -Josh
> 
> 
> On Sun, Jul 21, 2013 at 7:36 PM, Nathan of Guardian <
> nathan at guardianproject.info> wrote:
> 
>> And ffmpeg is indeed there in the APK?
>>
>> Josh Steiner <josh at vitriolix.com> wrote:
>>>
>>>  Minor correction... it's now happening on my builds of storymaker
>>> too... wonder what changed.  -josh
>>>
>>>
>>> On Sun, Jul 21, 2013 at 6:03 PM, Josh Steiner <josh at vitriolix.com> wrote:
>>>
>>>> I just setup a new test app to try some stuff out, this is the first
>>>> time I've tried to integrate android-ffmpeg-java into an app. it's dying
>>>> when it tries to install the ffmpeg binary from res/raw.  This is in fact
>>>> the exact same project as I currently use in StoryMaker, which works... but
>>>> not in this new app. did I miss some configuration/setup step?
>>>>
>>>> It's failing here:
>>>>
>>>> long assetLength =
>>>> mContext.getResources().openRawResourceFd(R.raw.ffmpeg).getLength();
>>>>
>>>> stacktrace:
>>>>
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122):
>>>> android.content.res.Resources$NotFoundException: File res/raw/ffmpeg from
>>>> drawable resource ID #0x7f040000
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.content.res.Resources.openRawResourceFd(Resources.java:981)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> org.ffmpeg.android.FfmpegController.checkBinary(FfmpegController.java:49)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> org.ffmpeg.android.FfmpegController.<init>(FfmpegController.java:41)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> io.scal.ffmpegparceltest.MainActivity.concat(MainActivity.java:180)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> io.scal.ffmpegparceltest.MainActivity.access$0(MainActivity.java:168)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> io.scal.ffmpegparceltest.MainActivity$3.onClick(MainActivity.java:79)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.view.View.performClick(View.java:4084)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.view.View$PerformClick.run(View.java:16966)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.os.Handler.handleCallback(Handler.java:615)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.os.Handler.dispatchMessage(Handler.java:92)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.os.Looper.loop(Looper.java:137)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.app.ActivityThread.main(ActivityThread.java:4745)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> java.lang.reflect.Method.invokeNative(Native Method)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> java.lang.reflect.Method.invoke(Method.java:511)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> dalvik.system.NativeStart.main(Native Method)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): Caused by:
>>>> java.io.FileNotFoundException: This file can not be opened as a file
>>>> descriptor; it is probably compressed
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.content.res.AssetManager.openNonAssetFdNative(Native Method)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.content.res.AssetManager.openNonAssetFd(AssetManager.java:428)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): at
>>>> android.content.res.Resources.openRawResourceFd(Resources.java:978)
>>>> 07-21 17:58:52.049: E/AndroidRuntime(16122): ... 16 more
>>>>
>>>>
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