From: Clemens Ladisch <clemens@ladisch.de>
To: Raymond Yau <superquad.vortex2@gmail.com>,
"Alexander E. Patrakov" <patrakov@gmail.com>
Cc: tiwai@suse.de, alsa-devel@alsa-project.org
Subject: Re: [PATCH v2] Fix forward/rewind support in iec958 plugin
Date: Fri, 25 Apr 2014 10:09:37 +0200 [thread overview]
Message-ID: <535A1841.8070208@ladisch.de> (raw)
In-Reply-To: <CAN8cciadq+=36DcMufwDD=M5=0EAdnkUxPv8b9Ga5JHWqg1-Hg@mail.gmail.com>
Raymond Yau wrote:
>> When forwarding or rewinding, the frame counter was not updated. This
>> could result in corrupted channel status words or misplaced Z-type
>> preamble.
>
> Do you mean it is the responsibility for a52 and dca plugin to return the
> SAFE value returned by snd_pcm_rewindable and snd_pcm_forwardable since
> they enocde the audio and padding zeros and write to IEC958 ?
The a52/dca plugins create data to be transferred over S/PDIF, but this
does not imply they use the iec958 plugin.
The iec958 plugin is used for sound cards that do not have a hardware
IEC958 encoder. This is very unlikely nowadays.
Regards,
Clemens
next prev parent reply other threads:[~2014-04-25 8:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-23 18:40 [PATCH] Fix forward/rewind support in iec958 plugin Alexander E. Patrakov
2014-04-24 11:19 ` David Henningsson
2014-04-24 14:40 ` [PATCH v2] " Alexander E. Patrakov
2014-04-24 23:02 ` Raymond Yau
2014-04-25 6:00 ` Alexander E. Patrakov
2014-04-25 8:09 ` Clemens Ladisch [this message]
2014-04-28 16:10 ` Takashi Iwai
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