From: Gary Thomas <gary@mlbassoc.com>
To: Eric Nelson <eric.nelson@boundarydevices.com>,
Fabio Estevam <festevam@gmail.com>
Cc: "meta-freescale@yoctoproject.org" <meta-freescale@yoctoproject.org>
Subject: Re: [meta-fsl-arm] i.MX6 audio performance
Date: Fri, 03 Jan 2014 14:05:14 -0700 [thread overview]
Message-ID: <52C7260A.2040209@mlbassoc.com> (raw)
In-Reply-To: <52C70E59.8050703@boundarydevices.com>
On 2014-01-03 12:24, Eric Nelson wrote:
> Hi Gary,
>
> On 01/03/2014 10:15 AM, Gary Thomas wrote:
>> On 2014-01-03 10:06, Eric Nelson wrote:
>>> Hi Gary,
>>>
>>> <snip>
>>>
>>>> I also noticed that on the SabreLite, mplayer is using an additional
>>>> library
>>>> libXxf86dga.so.1
>>>> and that it was built using hard floating point (the OMAP3 is soft).
>>>>
>>>> Any ideas?
>>>>
>>> Are you forcing ALSA output using '-ao alsa'? I've seen some issues with
>>> OSS emulation and I'm not sure of the default.
>>>
>>> Please advise,
>>
>> No, I'm using it straight
>> # mplayer FILE.mp3
>> Same on both platforms
>>
>
> Do you see an output line indicating the AO used?
>
> It should show something like this:
> AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
>
> Can you try using '-ao alsa'?
Same results. Here's everything printed by mplayer:
root@sabrelite:~# mplayer test.mp3 -ao alsa
MPlayer2 2.0-379-ge3f5043 (C) 2000-2011 MPlayer Team
162 audio & 361 video codecs
Playing test.mp3.
Detected file format: MPEG audio layer 2/3 (libavformat)
[mp3 @ 0x2bb83690]max_analyze_duration reached
[lavf] stream 0: audio (mp3), -aid 0
Clip info:
title: Wedding Bells
artist: Gas House Gang
album: Face The Music
TYER: 0
genre: Vocal
track: 2
Load subtitles in .
==========================================================================
Forced audio codec: mad
Requested audio codec family [mad] (afm=libmad) not available.
Enable it at compilation.
Requested audio codec family [mpg123] (afm=mpg123) not available.
Enable it at compilation.
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, floatle, 128.0 kbit/4.54% (ratio: 16002->352800)
Selected audio codec: [ffmp3float] afm: ffmpeg (FFmpeg MPEG layer-3 audio)
==========================================================================
AO: [alsa] 44100Hz 2ch floatle (4 bytes per sample)
Video: no video
Starting playback...
To see if this is user code or kernel driver, I tried running my OMAP3
file system on the SabreLite (the OMAP3/Cortex-A8 is pretty much a subset
of the CPU). Same results - broken sound when using mplayer :-(
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
next prev parent reply other threads:[~2014-01-03 21:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-03 15:19 [meta-fsl-arm] i.MX6 audio performance Gary Thomas
2014-01-03 15:23 ` Fabio Estevam
2014-01-03 15:51 ` Gary Thomas
2014-01-03 17:06 ` Eric Nelson
2014-01-03 17:15 ` Gary Thomas
2014-01-03 19:24 ` Eric Nelson
2014-01-03 21:05 ` Gary Thomas [this message]
2014-01-04 15:43 ` Eric Nelson
2014-01-05 15:16 ` Gary Thomas
2014-01-05 17:52 ` Marco
2014-01-05 21:13 ` Gary Thomas
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