ARMv7A Sound Not Working On OpenJDK-11
John Cummings
darkzalgo at gmail.com
Fri Oct 22 22:07:26 UTC 2021
Nevermind! I found the solution shortly after: it turns out there was a
discrepancy between the libasound.so.2.0.0 on the system and the one in my
buildroot. For some reason snd_pcm_hw_params_get_channels_min in
src/java.desktop/linux/native/libjsound/PLATFORM_API_LinuxOS_ALSA_PCM.c at
156 would always return an error. After copying over the buildroot
libasound.so.2.0.0, everything worked just fine.
On Fri, Oct 22, 2021 at 9:37 AM John Cummings <darkzalgo at gmail.com> wrote:
> Hello all,
> I have been attempting to build OpenJDK-11 for an ARMv7-A system using
> Cortex-A7 that currently runs Java 8. After resolving my build issues with
> the build-dev mailing list (who sent me here for this issue), I'm able to
> make it run on the system, but it cannot play sound and I have been unable
> to figure out why. Running the same java applications one after another, 8
> will play sound, 11 will crash upon trying to get the source line.
>
> Please let me know if there's any additional information I can provide
> that may help!
>
> I have attempted building with two different toolchains, I've used the
> branch at https://hg.openjdk.java.net/jdk/jdk11 as well as the one at
> https://github.com/openjdk/jdk11u-dev/. I've tried the server, client,
> and zero variants of both, with and without fastdebug enabled, and haven't
> made much progress with it. I've also tried with java 8 still on the
> system, and with deleting it entirely. I've also attempted to add the
> following to the sound.properties:
>
> javax.sound.sampled.Clip=com.sun.media.sound.DirectAudioDeviceProvider
> javax.sound.sampled.Port=com.sun.media.sound.PortMixerProvider
>
> javax.sound.sampled.SourceDataLine=com.sun.media.sound.DirectAudioDeviceProvider
>
> javax.sound.sampled.TargetDataLine=com.sun.media.sound.DirectAudioDeviceProvider
>
> This is the configuration I've been using:
> bash configure \
> --openjdk-target=arm-unknown-linux-gnueabihf \
> --with-native-debug-symbols=none \
> --disable-warnings-as-errors \
> --with-abi-profile=arm-vfp-hflt \
> --disable-ccache \
> --with-build-jdk=/opt/openjdk/jdk11u-dev/build/linux-x86_64-normal-server-release/images/jdk
> \
> --with-sysroot=/opt/buildroot-2017.08/output/host/arm-buildroot-linux-gnueabihf/sysroot/
> \
> --with-toolchain-path=/opt/x-tools/arm-unknown-linux-gnueabihf/bin \
> --with-x=/opt/buildroot-2017.08/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr
> \
> --with-cups=/opt/sbuildroot-2017.08/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr
> \
> --with-fontconfig=/opt/buildroot-2017.08/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr
> \
> --with-freetype-lib=/opt/buildroot-2017.08/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
> \
> --with-freetype-include=/opt/buildroot-2017.08/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include
> \
> --with-alsa=/opt/buildroot-2017.08/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr
> \
> --with-stdc++lib=dynamic \
> --with-extra-cxxflags='-O2 -pipe' \
> --with-extra-cflags='-O2 -pipe' \
> --with-jobs=8 \
> --with-jvm-variants=client
>
>
> Output of uname -a for this system is
> Linux sun6i 3.3.0 #125 SMP PREEMPT Fri Feb 5 07:04:03 CST 2021 armv7l
> GNU/Linux
>
> Output of java -version for 8 is
> # java8 -version
> java version "1.8.0_144"
> Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
> Java HotSpot(TM) Client VM (build 25.144-b01, mixed mode)
> Output for the newly built 11 is:
> # java -version
> openjdk version "11.0.14-internal" 2022-01-18
> OpenJDK Runtime Environment (build
> 11.0.14-internal+0-adhoc.johnc.jdk11u-dev)
> OpenJDK Client VM (build 11.0.14-internal+0-adhoc.johnc.jdk11u-dev, mixed
> mode)
>
> The app I've been collecting information with just gets the mixers, and
> any data lines and prints their values, and then plays a .wav file using
> SourceDataLine, and again with Clip. I use -Daudio.mixer="M1 PCM [default]"
> because in the Java 11 build, setting it to null for the default just
> returns null, and it doesn't even return the "Found Audio Mixer" line. If
> it helps, here is the java itself: https://pastebin.com/CCfUWTTf
>
> The output is as follows for 8 and 11:
>
>
>
> Java 8 output
>
>
>
> # java8 -Daudio.mixer="M1 PCM [default]" AudioFormats SuccessBuzzer.wav
> Found audio mixer: M1 PCM [default]
> Supported Lines of default mixer (M1 PCM [default]):
>
>
> Mixer ClassName:
> com.sun.media.sound.DirectAudioDeviceProvider$DirectAudioDeviceInfo
> Mixer Desc: Direct Audio Device: sun7i PCM, M1 PCM, sun7i PCM
> Vendor: ALSA (http://www.alsa-project.org)
>
> M1 PCM [default] --- interface SourceDataLine supporting 8
> audio formats, and buffers of at least 32 bytes -----
> com.sun.media.sound.DirectAudioDevice$DirectSDL at 873330
> M1 PCM [default] --- interface Clip supporting 8 audio formats,
> and buffers of at least 32 bytes -----
> com.sun.media.sound.DirectAudioDevice$DirectClip at 19d7047
> com.sun.media.sound.DirectAudioDevice at 16ec8df --- interface
> TargetDataLine supporting 8 audio formats, and buffers of at least 32 bytes
> ----- com.sun.media.sound.DirectAudioDevice$DirectTDL at ec7777
> Mixer Num Source Info Lines: 2
> Mixer Num Target Info Lines: 1
> interface SourceDataLine supporting 8 audio formats, and buffers of at
> least 32 bytes
> max buffer size: -1
> min buffer size: 32
> Supported Audio formats:
> PCM_SIGNED unknown sample rate, 16 bit, mono, 2 bytes/frame,
> little-endian
> encoding: PCM_SIGNED
> channels: 1
> frame size [bytes]: 2
> sample size [bit]: 16
> big endian: false
> line supported: true
> PCM_SIGNED unknown sample rate, 16 bit, mono, 2 bytes/frame, big-endian
> encoding: PCM_SIGNED
> channels: 1
> frame size [bytes]: 2
> sample size [bit]: 16
> big endian: true
> line supported: true
> PCM_SIGNED unknown sample rate, 16 bit, stereo, 4 bytes/frame,
> little-endian
> encoding: PCM_SIGNED
> channels: 2
> frame size [bytes]: 4
> sample size [bit]: 16
> big endian: false
> line supported: true
> PCM_SIGNED unknown sample rate, 16 bit, stereo, 4 bytes/frame,
> big-endian
> encoding: PCM_SIGNED
> channels: 2
> frame size [bytes]: 4
> sample size [bit]: 16
> big endian: true
> line supported: true
> PCM_SIGNED unknown sample rate, 8 bit, mono, 1 bytes/frame,
> encoding: PCM_SIGNED
> channels: 1
> frame size [bytes]: 1
> sample size [bit]: 8
> big endian: false
> line supported: true
> PCM_UNSIGNED unknown sample rate, 8 bit, mono, 1 bytes/frame,
> encoding: PCM_UNSIGNED
> channels: 1
> frame size [bytes]: 1
> sample size [bit]: 8
> big endian: false
> line supported: true
> PCM_SIGNED unknown sample rate, 8 bit, stereo, 2 bytes/frame,
> encoding: PCM_SIGNED
> channels: 2
> frame size [bytes]: 2
> sample size [bit]: 8
> big endian: false
> line supported: true
> PCM_UNSIGNED unknown sample rate, 8 bit, stereo, 2 bytes/frame,
> encoding: PCM_UNSIGNED
> channels: 2
> frame size [bytes]: 2
> sample size [bit]: 8
> big endian: false
> line supported: true
>
>
> interface Clip supporting 8 audio formats, and buffers of at least 32 bytes
>
> Playing SuccessBuzzer.wav
> Source Data Lines: PCM_SIGNED 22050.0 Hz, 16 bit, stereo, 4
> bytes/frame, little-endian
> encoding: PCM_SIGNED
> channels: 2
> frame rate [1/s]: 22050.0
> frame size [bytes]: 4
> sample rate [1/s]: 22050.0
> sample size [bit]: 16
> big endian: false
> line supported: true
>
>
>
> Clip Data Lines: PCM_SIGNED 22050.0 Hz, 16 bit, stereo, 4 bytes/frame,
> little-endian
> encoding: PCM_SIGNED
> channels: 2
> frame rate [1/s]: 22050.0
> frame size [bytes]: 4
> sample rate [1/s]: 22050.0
> sample size [bit]: 16
> big endian: false
> line supported: true
>
>
>
> Target Data Lines: PCM_SIGNED 22050.0 Hz, 16 bit, stereo, 4
> bytes/frame, little-endian
> encoding: PCM_SIGNED
> channels: 2
> frame rate [1/s]: 22050.0
> frame size [bytes]: 4
> sample rate [1/s]: 22050.0
> sample size [bit]: 16
> big endian: false
> line supported: true
>
>
>
>
>
>
>
>
> Java 11 Output
>
>
>
>
>
> # java -Daudio.mixer="M1 PCM [default]" AudioFormats SuccessBuzzer.wav
> Found audio mixer: M1 PCM [default]
> Supported Lines of default mixer (M1 PCM [default]):
>
>
> Mixer ClassName:
> com.sun.media.sound.DirectAudioDeviceProvider$DirectAudioDeviceInfo
> Mixer Desc: Direct Audio Device: sun7i PCM, M1 PCM, sun7i PCM
> Vendor: ALSA (http://www.alsa-project.org)
>
> Mixer Has 0 Source Info Lines:
> Mixer Has 0 Target Info Lines:
>
>
>
>
>
> Playing SuccessBuzzer.wav
> Source Data Lines: PCM_SIGNED 22050.0 Hz, 16 bit, stereo, 4
> bytes/frame, little-endian
> encoding: PCM_SIGNED
> channels: 2
> frame rate [1/s]: 22050.0
> frame size [bytes]: 4
> sample rate [1/s]: 22050.0
> sample size [bit]: 16
> big endian: false
> line supported: false
>
>
>
> Clip Data Lines: PCM_SIGNED 22050.0 Hz, 16 bit, stereo, 4 bytes/frame,
> little-endian
> encoding: PCM_SIGNED
> channels: 2
> frame rate [1/s]: 22050.0
> frame size [bytes]: 4
> sample rate [1/s]: 22050.0
> sample size [bit]: 16
> big endian: false
> line supported: false
>
>
>
> Target Data Lines: PCM_SIGNED 22050.0 Hz, 16 bit, stereo, 4
> bytes/frame, little-endian
> encoding: PCM_SIGNED
> channels: 2
> frame rate [1/s]: 22050.0
> frame size [bytes]: 4
> sample rate [1/s]: 22050.0
> sample size [bit]: 16
> big endian: false
> line supported: false
> java.lang.IllegalArgumentException: No line matching interface
> SourceDataLine supporting format PCM_SIGNED 22050.0 Hz, 16 bit, stereo, 4
> bytes/frame, little-endian is supported.
> at
> java.desktop/javax.sound.sampled.AudioSystem.getLine(AudioSystem.java:425)
> at AudioFormats.main(AudioFormats.java:77)
> java.lang.IllegalArgumentException: No line matching interface Clip
> supporting format PCM_SIGNED unknown sample rate, 16 bit, stereo, 4
> bytes/frame, big-endian is supported.
> at
> java.desktop/javax.sound.sampled.AudioSystem.getLine(AudioSystem.java:425)
> at
> java.desktop/javax.sound.sampled.AudioSystem.getClip(AudioSystem.java:461)
> at AudioFormats.main(AudioFormats.java:94)
>
> On another application I've also had an error pointing to the
> DirectAudioDevice.java that also plays the same .wav file.
>
> Caused by: java.lang.IllegalArgumentException: Line unsupported: interface
> SourceDataLine
> at
> java.desktop/com.sun.media.sound.DirectAudioDevice.getLine(DirectAudioDevice.java:175)
> at
> java.desktop/javax.sound.sampled.AudioSystem.getSourceDataLine(AudioSystem.java:572)
>
> Here's aplay output for that file too in case that helps:
>
> #aplay -vvv SuccessBuzzer.wav
> Playing WAVE 'SuccessBuzzer.wav' : Signed 16 bit Little Endian, Rate 22050
> Hz, Stereo
> Hardware PCM card 0 'audiocodec' device 0 subdevice 0
> Its setup is:
> stream : PLAYBACK
> access : RW_INTERLEAVED
> format : S16_LE
> subformat : STD
> channels : 2
> rate : 22050
> exact rate : 22050 (22050/1)
> msbits : 16
> buffer_size : 8192
> period_size : 2048
> period_time : 92879
> tstamp_mode : NONE
> tstamp_type : MONOTONIC
> period_step : 1
> avail_min : 2048
> period_event : 0
> start_threshold : 8192
> stop_threshold : 8192
> silence_threshold: 0
> silence_size : 0
> boundary : 1073741824
> appl_ptr : 0
> hw_ptr : 0
> Max peak (4096 samples): 0x0000095f ## 7%
> Max peak (4096 samples): 0x00001a62 ##### 20%
> Max peak (4096 samples): 0x00001b1c ##### 21%
> Max peak (4096 samples): 0x0000182c #### 18%
> Max peak (4096 samples): 0x000005de # 4%
> Max peak (4096 samples): 0x00000451 # 3%
> Max peak (4096 samples): 0x000001d5 # 1%
>
>
> Thanks,
> John Cummings
>
>
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