Hi,
Hoe to playback an AAC file using HDMI passthrough.
I do not want to use gstreamer.
root@freescale /unit_tests$ /proc/asound/
card0 card1 imxhdmisoc wm8962audio
root@freescale /unit_tests$ cat /proc/asound/card1/pcm0p/sub0/info
card: 1
device: 0
subdevice: 0
stream: PLAYBACK
id: IMX HDMI TX mxc-hdmi-soc-0
name:
subname: subdevice #0
class: 0
subclass: 0
subdevices_count: 1
subdevices_avail: 1
Regards,
Subodh
Solved! Go to Solution.
Please take a look at the following link and document, it may serve you as a guide:
Any Suggestions ??
Please take a look at the following link and document, it may serve you as a guide:
Thanks the settings work. But since I do not have alsa-tools built on my current image I used gstreamer to test.
Raw audio also gets redirected to the target device automatically with aplay.
Following is the tail that shows suggests decoding is still done in software . Hence I tried AC3 and got the following error.
Is it possible to decode the audio on the target HDMI device instead of board ?
Please guide me to correct documentation I need to refer to clarify my doubts regarding the audio subsystem.
AAC Tail logs
===========
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstAudioSinkClock
Got EOS from element "playbin20".
Execution ended after 66113939675 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstAutoAudioSink:audiosink/GstAlsaSink:audiosink-actual-sink-alsa.GstPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstAutoAudioSink:audiosink.GstGhostPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstVolume:volume.GstPad:src: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstVolume:volume.GstPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstAudioResample:aresample.GstPad:src: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstAudioResample:aresample.GstPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstAudioConvert:aconv.GstPad:src: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstAudioConvert:aconv.GstPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstQueue:aqueue.GstPad:src: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin/GstQueue:aqueue.GstPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstBin:abin.GstGhostPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstStreamSynchronizer:streamsynchronizer0.GstPad:sink_0: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstStreamSynchronizer:streamsynchronizer0.GstPad:src_0: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstTee:audiotee.GstPad:src0: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0/GstTee:audiotee.GstPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstPlaySink:playsink0.GstGhostPad:audio_raw_sink: caps = NULL
/GstPlayBin2:playbin20/GstInputSelector:inputselector0.GstSelectorPad:sink0: caps = NULL
/GstPlayBin2:playbin20/GstInputSelector:inputselector0.GstPad:src: caps = NULL
/GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0.GstGhostPad:src0: caps = NULL
/GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20.GstDecodePad:src0: caps = NULL
/GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstBeepdec4:beepdec40.GstPad:src: caps = NULL
/GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstBeepdec4:beepdec40.GstPad:sink: caps = NULL
/GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstTypeFindElement:typefind.GstPad:src: caps = NULL
Setting pipeline to NULL ...
Freeing pipeline ...
AC3 Error
==========
WARNING: from element /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0: No decoder available for type 'audio/x-ac3'.
Additional debug info:
gsturidecodebin.c(867): unknown_type_cb (): /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0
ERROR: from element /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20: Your GStreamer installation is missing a plug-in.
Additional debug info:
gstdecodebin2.c(3233): gst_decode_bin_expose (): /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20:
no suitable plugins found
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
/GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstTypeFindElement:typefind.GstPad:src: caps = NULL
Freeing pipeline ...