FFmpegFrameRecorder setFormat H265/HEVC

[bytedeco]

FFmpegFrameRecorder setFormat H265/HEVC

[pgfsim]

Latest git downloaded and built.

This does not work
recorder.setVideoCodec(avcodec.AV_CODEC_ID_HEVC);

But this appears to. Very odd.
recorder.setVideoCodecName("H265");

[saudet]

We would have to compile x265 and link it to FFmpeg. Would you be interested in working on this? It would require modifying the cppbuild.sh script as appropriate.

[pgfsim]

I'm interested in working on this but I'm afraid I have moderate experience in this. I remember when you compiled x264 and ffmpeg :). I'll try and see what I can do

[saudet]

Great! Let me know if you run into any problems

[pgfsim]

I've put the x265 files in the correct Android NDK arch-arm folders. I'm currently trying to compile ffmpeg to make the .so files. I'm using ffmpeg 2.2.9. It takes around 15 mins to compile but I don't think it's working correctly as it says the folders/commands aren't found :/.

This is my build script

#!/bin/bash

NDK=~/Downloads/android-ndk-r10c
SYSROOT=$NDK/platforms/android-8/arch-arm/
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64
function build_one
{
./configure
--prefix=$PREFIX
--enable-shared
--disable-static
--disable-doc
--disable-ffmpeg
--disable-ffplay
--disable-ffprobe
--disable-ffserver
--disable-avdevice
--disable-doc
--disable-symver
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi-
--target-os=linux
--arch=arm
--enable-cross-compile
--sysroot=$SYSROOT
--extra-cflags="-Os -fpic $ADDI_CFLAGS"
--extra-ldflags="$ADDI_LDFLAGS"
$ADDITIONAL_CONFIGURE_FLAG
make clean
make
make install
}
CPU=arm
PREFIX=$(pwd)/android/$CPU
ADDI_CFLAGS="-marm"
build_one

[saudet]

Try to use the ffmpeg/cppbuild.sh script instead...

[pgfsim]

I've used the cppbuild.sh script and that created the native libraries within the cppbuild/android-arm folder. Now I'm trying to run mvn install --projects ffmpeg but that's saying Failed to execute JavaCPP Builder: could not parse "libavutil/avutil.h": file does not exist. I'm using Maven 2.2.1. The files do exist in various folder within cppbuild/android-arm/

[saudet]

Does it do the same with the source code from the develop branches?

[pgfsim]

Well develop branch gives the following:

[WARNING] The POM for org.bytedeco:javacpp:jar:0.9.1-SNAPSHOT is missing, no dependency information available
[ERROR] Plugin org.bytedeco:javacpp:0.9.1-SNAPSHOT or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.bytedeco:javacpp:jar:0.9.1-SNAPSHOT: Could not find artifact org.bytedeco:javacpp:pom:0.9.1-SNAPSHOT -> [Help 1]

Changing the version in the pom file to simply '0.9' gives the same could not parse message

[saudet]

That means you also need to install the develop branch of javacpp:
https://github.com/bytedeco/javacpp/tree/develop

[pgfsim]

Ok, I get the same could not parse error.

[saudet]

Well, it works here. Can you let me know the exact sequence of git, cppbuild.sh and mvn that you are using, just to make sure that there isn't anything wrong there? Thanks!

[pgfsim]

Alright here's what I'm doing:

cd ~/Downloads
git clone https://github.com/bytedeco/javacpp
cd ~/Downloads/javacpp
git branch -a
git checkout develop
mvn install
cd ~/Downloads
git clone https://github.com/bytedeco/javacpp-presets
cd ~/Downloads/javacpp-presets
git branch -a
git checkout develop
ANDROID_NDK=~/Downloads/android-ndk-r10c/ bash cppbuild.sh -platform android-arm install clean ffmpeg
mvn install -Dplatform.name=android-arm --projects ffmpeg

I actually cppbuilded all projects, not just ffmpeg. Here is where the could not parse error is shown.
Failed to execute goal.bytedeco:javacpp:0.9.1-SNAPSHOT:build (generate source) on project ffmpeg: Failed to execute JavaCPP Builder: Could not parse "libavutil/avutil.h": File does not exist -> [Help 1]

If I try a maven install on opencv I get a similar error:
Failed to execute goal.bytedeco:javacpp:0.9.1-SNAPSHOT:build (generate source) on project opencv: Failed to execute JavaCPP Builder: Could not parse "opencv2/core/types_c.h": File does not exist -> [Help 1]

Thanks

[saudet]

Running cppbuild.sh with both install and clean isn't going to actually do anything... We should probably have the script output an error there.

And you'll need to specify the directory of the NDK for the mvn command as well. So something like this should work:

export ANDROID_NDK=~/Downloads/android-ndk-r10c/
bash cppbuild.sh -platform android-arm install ffmpeg
mvn install -Pandroid-arm -Dplatform.root=$ANDROID_NDK --projects ffmpeg

[pgfsim]

Thanks, that's fixed but now later on in the build process I'm getting this error but the file does exist.

[ERROR] Failed to execute goal org.bytedeco:javacpp:0.9.1-SNAPSHOT:build (process-classes) on project ffmpeg: Failed to execute JavaCPP Builder: Cannot run program "toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi-g++": error=2, No such file or directory -> [Help 1]

[saudet]

What's the command you used for mvn? It sounds like the platform.root property isn't set.

[pgfsim]

I managed to get past that by setting -Dplatform.compiler=/path/to/arm-linux-androideabi-g++
Note it had to be the full path, i.e. '/home/pete/Downloads/...' and not '~/Downloads/...'

Next error... :(
/home/pete/Downloads/javacpp-presets/ffmpeg/target/classes/org/bytedeco/javacpp/jniavcodec.cpp:27:17: fatal error: jni.h: No such file or directory compilation terminated.

It seems to be looking at the cppbuild/android-arm/include/ folder for jni.h ? Well there's the java-jdk jni.h or the same file in android-ndk-r10c/platforms/android-8/arch-arm/usr/include. If I copy all the files and folders from the android include folder then it gets caught on #include <exception> and the presumably #include <new>

[saudet]

As explained above, we need to specify the platform.root property. In your case, something like this should also work:

mvn install -Pandroid-arm -Dplatform.root=/home/pete/Downloads/android-ndk-r10c/ --projects ffmpeg

[saudet]

FYI, work started for x265 support here: bytedeco/javacpp-presets@778d34b

[pgfsim]

Thanks Sam, I started work on this too but lost track. I'll try and have a look again.

[saudet]

x265 is now included in version 0.11. Thanks for your effort, it helped a lot!! Let me know if you see anything wrong with the current build.

[pgfsim]

Hi Sam,

Just compiled latest version 0.11 and when calling recorder.setVideoCodec(org.bytedeco.javacpp.avcodec.AV_CODEC_ID_HEVC); I get the dreaded org.bytedeco.javacv.FrameRecorder$Exception: avcodec_open2() error -22: Could not open video codec.

I'm having a look into it.

[saudet]

Ok, thanks! Let me know what you find out.

[godzillad]

Hi Peter, did you find the solution. I am facing the same issue. I am using version 0.11 on Nexus 5 with lollipop.

[saudet]

Could you guys try on Linux or Mac OS X and let me know if it works or not? It would help, thanks

[godzillad]

I dont have access to any Macs, I will try on Linux and let you know.

[pgfsim]

I didn't find a solution but the codecs (encoder & decoder) were definitely there. But it still would not load.

I'm away at the moment but didn't try on Linux. Only android.

[godzillad]

I tried on Linux (ubuntu 14.04 LTS). I converted a h264 video to HEVC using FFmpegFrameGrabber and FFmpegFrameRecorder and it works.

[saudet]

So it works on Linux, but not on Android? Strange...

[ShihabSoft]

A bit of strangeness is remaining.
As android considered as a flavor of UNIX.

Let me check it out on Mac.
On Jun 24, 2015 5:36 AM, "Samuel Audet" [email protected] wrote:

So it works on Linux, but not on Android? Strange...

—
Reply to this email directly or view it on GitHub
#41 (comment).

[saudet]

Does the same thing happen with FFmpeg 2.7 and x265 1.7 recently updated in the presets?

[saudet]

Sounds like a bug to report upstream :)

[gordonpro]

Is HEVC encoder supported?