Gstreamer no audio output

[redargon]

I read in #218 that you had not yet implemented audio for gstreamer. Is this still the case? I have tried a few different video formats, but do not get any audio output.

[ardera]

Yep that's still the case, working on it

[redargon]

Great, thanks for the fast feedback.

[ioridev]

When will this be worked on?

[Binozo]

any updates?

[ardera]

@redargon @ioridev @Binozo Just implemented it, can you try with the feature/gstplayer-audio branch?

[Binozo]

@ardera
Sorry but I couldn't get it to work.

Here are my logs:

[flutter-pi] WARNING: display didn't provide valid physical dimensions. The device-pixel ratio will default to 1.0, which may not be the fitting device-pixel ratio for your display.

(flutter-pi:627): GLib-GObject-WARNING **: 17:49:37.994: g_object_set_is_valid_property: object class 'GstPlayBin' has no property named 'force-sw-decoders'
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
[gstreamer video_player] Could not query buffering state. (gst_element_query)
AL lib: (EE) ALCplaybackAlsa_reset: snd_pcm_hw_params(self->pcmHandle, hp) failed: File descriptor in bad state
[gstreamer video player] gstreamer error: code: 1, domain: gst-resource-error-quark, msg: Unable to prepare device. (debug info: ../ext/openal/gstopenalsink.c(858): gst_openal_sink_prepare (): /GstPlayBin:playbin/GstPlaySink:playsink/GstBin:abin/GstOpenALSink:openalsink0:
ALC error: Invalid Device)
[gstreamer video player] gstreamer error: code: 11, domain: gst-stream-error-quark, msg: The stream is in the wrong format. (debug info: ../gst-libs/gst/audio/gstaudiobasesink.c(1191): gst_audio_base_sink_preroll (): /GstPlayBin:playbin/GstPlaySink:playsink/GstBin:abin/GstOpenALSink:openalsink0:
sink not negotiated.)
[gstreamer video player] gstreamer error: code: 1, domain: gst-stream-error-quark, msg: Internal data stream error. (debug info: ../libs/gst/base/gstbasesrc.c(3127): gst_base_src_loop (): /GstPlayBin:playbin/GstURIDecodeBin:uridecodebin0/GstSoupHTTPSrc:source:
streaming stopped, reason not-negotiated (-4))
[compositor] GPU does not supported the desired HW plane order.
  Some UI layers may be invisible.

[ardera]

@Binozo Are you running raspbian buster? buster has pretty old gstreamer 1.14, bullseye has 1.18. Gstreamer has seen a lot of improvements between those versions, I'm pretty sure upgrading to bullseye will fix it.

Or, if you rely on buster, try building & installing latest gstreamer yourself.

[Binozo]

@ardera I am using Raspbian Bullseye on a Raspberry Pi Zero 2 W.

Maybe the Zero 2 W variant causes the problem?

[ardera]

@Binozo can you try installing gstreamer1.0-alsa if it's not installed already?

Pi Zero 2W should work too

[Binozo]

Now it started working :)

Thank you!

[ardera]

Np, I'll add that to the dependencies section then.

[tobiasht]

Has anyone managed to get audio working? I am using the audioplayers package. Audio works fine in Mac and Web.

This is the error i get on the RaspberryPi:

[audioplayers plugin] Call missing mandatory parameter player_id.
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(illegalargument, Expected `arg['player_id'] to be a string., null, null)
#0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:653:7)
#1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:315:18)
<asynchronous suspension>
#2      AudioPlayer.play (package:audioplayers/src/audioplayer.dart:131:5)
<asynchronous suspension>
#3      GameNotifier.operatorNextStep (package:save_the_penguins/app/features/game/providers/game_providers.dart:93:7)
<asynchronous suspension>