Opened 11 years ago

Closed 11 years ago

#7497 closed defect (fixed)

AAC 6 Channel Audio plays slow

Reported by: PeaceKeeper Owned by: JYA
Priority: minor Milestone: unknown
Component: MythTV - Video Playback Version: 0.22rc1
Severity: medium Keywords: AAC 6 Channel
Cc: Ticket locked: no


After troubleshooting this with people on IRC, I was convinced to open a ticket. When trying to play a .mkv (maybe others) with 6 Channel AAC the audio plays back slow (maybe half speed (?). At this point I am not sure how to create a sample, but soon as I figure it out I will attach one.

Upmix is set to Passive and I have tried Stereo and 5.1 setting. 5.1 has no audio and stereo plays slow. AC3 and DTS passthrough is set on.

MythFrontend Log: 2009-11-02 21:32:07.945 AFD: Opened codec 0x8a8e640, id(H264) type(Video) 2009-11-02 21:32:07.945 AFD: codec AAC has 6 channels 2009-11-02 21:32:07.946 AFD: Opened codec 0x8ac7430, id(AAC) type(Audio) 2009-11-02 21:32:07.946 AFD Error: Could not find decoder for codec (Unknown Codec ID), ignoring. 2009-11-02 21:32:07.946 AFD Error: Could not find decoder for codec (Unknown Codec ID), ignoring. 2009-11-02 21:32:08.007 Opening audio device 'spdif'. ch 2(2) sr 48000 2009-11-02 21:32:08.007 Opening ALSA audio device 'spdif'. 2009-11-02 21:32:08.512 VideoOutputXv?: XVideo Adaptor Name: 'NV17 Video Texture'

mythbackend --version Please include all output in bug reports. MythTV Version : 22576 MythTV Branch : branches/release-0-22-fixes/mythtv/ Network Protocol : 50 Library API : 0.22.20091008-1 QT Version : 4.4.3 Options compiled in:

linux release using_oss using_alsa using_arts using_jack using_backend using_dvb using_firewire using_frontend using_hdhomerun using_hdpvr using_iptv using_ivtv using_joystick_menu using_libfftw3 using_lirc using_mheg using_opengl_video using_opengl_vsync using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_xvmc using_xvmc_vld using_xvmcw using_bindings_perl using_bindings_python using_opengl using_vdpau using_ffmpeg_threads using_libavc_5_3 using_live using_mheg

uname -a Linux mythbackend #1 SMP Fri Oct 9 12:34:43 EDT 2009 i686 athlon i386 GNU/Linux

Change History (4)

comment:1 Changed 11 years ago by robertm

Component: Plugin - MythVideoMythTV - Video Playback
Owner: changed from Anduin Withers to Janne Grunau

comment:2 Changed 11 years ago by PeaceKeeper

I have a sample file here: The sample file was made by using: dd if=infile of=sample.mkv bs=1024K count=50 The sample.mkv reports the wrong time on playback but still has the same slow audio problem as the original file.

Let me know if I need to provide any more information or test. -PK

comment:3 Changed 11 years ago by JYA

Owner: changed from Janne Grunau to JYA
Status: newassigned

Could you please try the mythtv-hdaudio branch and report if this problem is fixed for you ? (it should be)

comment:4 Changed 11 years ago by JYA

Resolution: fixed
Status: assignedclosed

Fixed in r24847

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