DTS Audio for android == LAWSUIT

indianajonesilm · Sep 15, 2012

Now that MX Player 1.7 was released with instructions on how to build a custom FFmpeg with DTS support,has anyone tried it out?

jebise101 · Sep 15, 2012

indianajonesilm said:
Now that MX Player 1.7 was released with instructions on how to build a custom FFmpeg with DTS support,has anyone tried it out?

Did a quick google search after you reply and found this I hope someone can build this. I would rather not start a VM just for this

and just be handed on a silver platter.

koljanowak · Sep 15, 2012

I've build ffmpeg for mxplayer successfully for my Nexus 7. MKV with DTS plays fine now.

However, there is a small detail missing in the Howto. Building as described leads to a working ffmpeg version which still doesn't handle DTS. One has to remove the following three lines from config-ffmpeg.sh:

Code:

--disable-demuxer=dts \
--disable-parser=dca \
--disable-decoder=dca \

buvk · Sep 15, 2012

i built ffmpeg using the instructions here:

https://sites.google.com/site/mxvpen/ffmpeg

and also removing the 3 lines you mentioned, but i'm still not hearing any audio with a dts mkv
any ideas?

koljanowak · Sep 15, 2012

Did you copy all five .so files

Code:

libavcodec.so
libavformat.so
libavutil.so
libswresample.so
libswscale.so

into a folder on your device? And have you selected that folder in MX Player as "Custom codec"? And after a restart of MX Player, is the folder name still shown under "Custom codec"?

buvk · Sep 15, 2012

yep, thats exactly what i did

LoganMcClay · Sep 15, 2012

koljanowak said:
I've build ffmpeg for mxplayer successfully for my Nexus 7. MKV with DTS plays fine now.

However, there is a small detail missing in the Howto. Building as described leads to a working ffmpeg version which still doesn't handle DTS. One has to remove the following three lines from config-ffmpeg.sh:

Code:

--disable-demuxer=dts \ --disable-parser=dca \ --disable-decoder=dca \

Hi,

I don't get it, trying to compile ffmpeg for an hour and I get stuck on some parameters in build-ffmpeg.sh... What shoud TARGET1 & TARGET2 point to ? Tried to give there the *.so found in the unpacked codecs APK and that's a no-go...
Also, this part :

Code:

cp libavutil/libavutil.so $TARGET1/
cp libavutil/libavutil.so $TARGET2/
cp libswresample/libswresample.so $TARGET1/
cp libswresample/libswresample.so $TARGET2/
cp libavcodec/libavcodec.so $TARGET1/
cp libavcodec/libavcodec.so $TARGET2/
cp libavformat/libavformat.so $TARGET1/
cp libavformat/libavformat.so $TARGET2/
cp libswscale/libswscale.so $TARGET1/
cp libswscale/libswscale.so $TARGET2/

is trying to copy files that doesn't exist... Maybe because first part isn't set correctly.

koljanowak, can you point me how you've done it ?

Thanks by advance :fingers-crossed:

jebise101 · Sep 16, 2012

LoganMcClay said:
Hi,

I don't get it, trying to compile ffmpeg for an hour and I get stuck on some parameters in build-ffmpeg.sh... What shoud TARGET1 & TARGET2 point to ? Tried to give there the *.so found in the unpacked codecs APK and that's a no-go...
Also, this part :

Code:

cp libavutil/libavutil.so $TARGET1/ cp libavutil/libavutil.so $TARGET2/ cp libswresample/libswresample.so $TARGET1/ cp libswresample/libswresample.so $TARGET2/ cp libavcodec/libavcodec.so $TARGET1/ cp libavcodec/libavcodec.so $TARGET2/ cp libavformat/libavformat.so $TARGET1/ cp libavformat/libavformat.so $TARGET2/ cp libswscale/libswscale.so $TARGET1/ cp libswscale/libswscale.so $TARGET2/

is trying to copy files that doesn't exist... Maybe because first part isn't set correctly.

koljanowak, can you point me how you've done it ?

Thanks by advance :fingers-crossed:

you have to set the target folders so output of the codecs

I replaced $target1 to /usr/src/android-ndk-r8b/T1=../libs/armeabi-v7a/neon and do the same for $Target2 but point it to a different folder.

What I don't get is what does it need to Target folders, I tried both codecs folders and they both play DTS on H/W+ only

LoganMcClay · Sep 16, 2012

Sorry but don't undestand what you did.

That's for instance what i've set for now, but doesn't work :

build-ffmpeg.sh

Code:

case $1 in
	neon)
		TARGET1=/home/vmware/Documents/ffmpeg/ffmpeg_v7_neon__1_7.apk_FILES/lib/armeabi
		TARGET2=/home/vmware/Documents/ffmpeg/ffmpeg_v7_neon__1_7.apk_FILES/output
		;;

Do you say you've modified it that way ?

Code:

case $1 in
	neon)
		/usr/src/android-ndk-r8b/T1=../libs/armeabi-v7a/neon
		/usr/src/android-ndk-r8b/T2=../libs/output/ffmpeg_v7_neon/armeabi
		;;

jebise101 · Sep 16, 2012

LoganMcClay said:
Sorry but don't undestand what you did.

That's for instance what i've set for now, but doesn't work :

build-ffmpeg.sh

Code:

case $1 in neon) TARGET1=/home/vmware/Documents/ffmpeg/ffmpeg_v7_neon__1_7.apk_FILES/lib/armeabi TARGET2=/home/vmware/Documents/ffmpeg/ffmpeg_v7_neon__1_7.apk_FILES/output ;;

Do you say you've modified it that way ?

Code:

case $1 in neon) /usr/src/android-ndk-r8b/T1=../libs/armeabi-v7a/neon /usr/src/android-ndk-r8b/T2=../libs/output/ffmpeg_v7_neon/armeabi ;;

I messed up the end as you can see below, but it generated the 5 *.so files in both T1/T2 directories, and I just manually created the lib folder and moved them to the appropriate folders. What I do not understand why it generates target1/target2 directories with the same *.so files when only one folder with the so files are required. So is the S3 armeabi-v7a or armeabi?

Code:

build-ffmpeg.sh: line 10: /usr/src/android-ndk-r8b/T1=../libs/armeabi-v7a/neon: No such file or directory
build-ffmpeg.sh: line 11: /usr/src/android-ndk-r8b/T2=../libs/output/ffmpeg_v7_neon/armeabi: No such file or directory

buvk · Sep 16, 2012

well i got it to work

under settings > general, i had to reset settings, and then set it to use custom codec again after i restarted the app. worked perfectly right after that.

and for those of you having issues compiling, tech support on mx's forums posted the compiled codec.

https://groups.google.com/d/msg/mx-videoplayer/Yfn0mlU7RW4/Z_F_Y5KmZ3EJ

koljanowak · Sep 16, 2012

LoganMcClay said:

Hi,

Code:

cp libavutil/libavutil.so $TARGET1/
cp libavutil/libavutil.so $TARGET2/
cp libswresample/libswresample.so $TARGET1/
cp libswresample/libswresample.so $TARGET2/
cp libavcodec/libavcodec.so $TARGET1/
cp libavcodec/libavcodec.so $TARGET2/
cp libavformat/libavformat.so $TARGET1/
cp libavformat/libavformat.so $TARGET2/
cp libswscale/libswscale.so $TARGET1/
cp libswscale/libswscale.so $TARGET2/

Those target directories are irrelevant for our use case. Placing the .so in different target directories is a part of the MX Player build process, which leads to an APK containing different versions of ffmpeg for all supported CPU types. We need to build only for our own CPU type and then copy the five .so files by hand to a folder of our own choosing on the device.

Only the first four commands in build-ffmpeg.sh are relevant, and you can even enter them by hand:

Code:

cd ffmpeg
../config-ffmpeg.sh $1
make clean
make -j8

You must insert your architecture (neon, tegra2, v6_vfp, v6, v5te, x86, mips) as argument to config-ffmpeg.sh (replacing $1). And of course you have to make the necessary changes in config-ffmpeg.sh beforehand, which is
- change "NDK=..." to point to where you extracted your NDK,
- delete "-DMXTECHS" and "-lmxutil", as mentioned on the MX Player Howto page,
- delete the three lines disabling DTS and DCA, as mentioned in my first post.

LoganMcClay · Sep 16, 2012

koljanowak said:
Those target directories are irrelevant for our use case. Placing the .so in different target directories is a part of the MX Player build process, which leads to an APK containing different versions of ffmpeg for all supported CPU types. We need to build only for our own CPU type and then copy the five .so files by hand to a folder of our own choosing on the device.

Only the first four commands in build-ffmpeg.sh are relevant, and you can even enter them by hand:

Code:

cd ffmpeg ../config-ffmpeg.sh $1 make clean make -j8

You must insert your architecture (neon, tegra2, v6_vfp, v6, v5te, x86, mips) as argument to config-ffmpeg.sh (replacing $1). And of course you have to make the necessary changes in config-ffmpeg.sh beforehand, which is
- change "NDK=..." to point to where you extracted your NDK,
- delete "-DMXTECHS" and "-lmxutil", as mentioned on the MX Player Howto page,
- delete the three lines disabling DTS and DCA, as mentioned in my first post.

Thanks, got it working

Anyway, it seems to work also with the one posted a little above on MX google groups even on different arch (tried on HTC HD2 NANDroid, Asus Transformer Prime and Samsung Galaxy S3). In configuration>Codecs>Custom codecs I just pointed the "libavcodec.so" file.
That way, we don't need to compile it for each and every platform

koljanowak · Sep 16, 2012

LoganMcClay said:
That way, we don't need to compile it for each and every platform

Maybe, but it depends on how those architectures are related. A more modern ARM CPU will execute code for older ARMs, but you may miss optimizations for your CPU this way, and this could impact performance and/or battery life. Or worse, if you use code which was compiled for a more modern ARM CPU than yours, the code may contain instructions which don't work on your CPU. Also, ARM, x86 and MIPS and are not related at all and are completely incompatible.

LoganMcClay · Sep 16, 2012

koljanowak said:
Maybe, but it depends on how those architectures are related. A more modern ARM CPU will execute code for older ARMs, but you may miss optimizations for your CPU this way, and this could impact performance and/or battery life. Or worse, if you use code which was compiled for a more modern ARM CPU than yours, the code may contain instructions which don't work on your CPU. Also, ARM, x86 and MIPS and are not related at all and are completely incompatible.

Right, I haven't tested that far. What I was saying is it's just decoding fine on a bunch of different ARM processors i've tested.

zetsui · Sep 16, 2012

why is this such a big thing...is there a huge quality difference between DTS and stereo?

cook · Sep 16, 2012

Hello,

Is someone can post compiled versions for neon and for tegra2 ?

Thanks

koljanowak · Sep 16, 2012

I would post them, but as a newbie I am not allowed to. I can provide links via PM.

cook · Sep 16, 2012

Please do it I will post it there

koljanowak · Sep 16, 2012

It looks like I'm not so new anymore:

mxplayer-v1-7-ffmpeg-2012-09-16-neon.zip (md5: e5bf7c05c680006d81fbccefb79fc713)
-> https://anonfiles.com/file/e5bf7c05c680006d81fbccefb79fc713
mxplayer-v1-7-ffmpeg-2012-09-16-tegra2.zip (md5: c64f7dc461d3f4c2bbda08c726f478c9)
-> https://anonfiles.com/file/c64f7dc461d3f4c2bbda08c726f478c9
mxplayer-v1-7-ffmpeg-2012-09-16-v6_vfp.zip (md5: 553367b419e6c855b6eb32f7abd35ec1)
-> https://anonfiles.com/file/553367b419e6c855b6eb32f7abd35ec1
mxplayer-v1-7-ffmpeg-2012-09-16-v6.zip (md5: 342a2a8bda3f9a8ebd5b62e95a8593a2)
-> https://anonfiles.com/file/342a2a8bda3f9a8ebd5b62e95a8593a2
mxplayer-v1-7-ffmpeg-2012-09-16-v5te.zip (md5: 6ea66726b362a73e9b962be7a05af3a6)
-> https://anonfiles.com/file/6ea66726b362a73e9b962be7a05af3a6

DTS Audio for android == LAWSUIT

How do you deal with DTS Audio?

Re-encode to smaller phone-friendly format

Old version of player that still has DTS support

I don't watch mkv video on my phone

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