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From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Vinod Koul <vkoul@kernel.org>, Takashi Iwai <tiwai@suse.com>,
	Jaroslav Kysela <perex@perex.cz>
Cc: Charles Keepax <ckeepax@opensource.cirrus.com>,
	alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] ALSA: compress: document the compress gapless audio state machine
Date: Fri, 19 Jun 2020 09:27:42 -0500	[thread overview]
Message-ID: <5c878ccf-43dd-4e13-aa6b-a6cb1e82af72@linux.intel.com> (raw)
In-Reply-To: <20200619045449.3966868-3-vkoul@kernel.org>


> +For Gapless, we move from running state to partial drain and back, along
> +with setting of meta_data and signalling for next track ::
> +
> +
> +                                        +----------+
> +                compr_drain_notify()    |          |
> +              +------------------------>|  RUNNING |
> +              |                         |          |
> +              |                         +----------+
> +              |                              |
> +              |                              |
> +              |                              | compr_next_track()
> +              |                              |
> +              |                              V
> +              |                         +----------+
> +              |                         |          |
> +              |                         |NEXT_TRACK|
> +              |                         |          |
> +              |                         +----------+
> +              |                              |
> +              |                              |
> +              |                              | compr_partial_drain()
> +              |                              |
> +              |                              V
> +              |                         +----------+
> +              |                         |          |
> +              +------------------------ | PARTIAL_ |
> +                                        |  DRAIN   |
> +                                        +----------+

May I suggest having a single state machine, not a big one and an 
additional partial one. It would help explain why in one case 
compr_drain_notify() triggers a transition to RUNNING while in the other 
one it goes to SETUP.

I realize it's more complicated to edit but it'd be easier on 
reviewers/users.

  reply	other threads:[~2020-06-19 16:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-19  4:54 [PATCH 0/3] ALSA: compress: Document stream states and fix gaplless SM Vinod Koul
2020-06-19  4:54 ` [PATCH 1/3] ALSA: compress: document the compress audio state machine Vinod Koul
2020-06-19  9:29   ` Srinivas Kandagatla
2020-06-19 14:22   ` Pierre-Louis Bossart
2020-06-22  5:33     ` Vinod Koul
2020-06-19  4:54 ` [PATCH 2/3] ALSA: compress: document the compress gapless " Vinod Koul
2020-06-19 14:27   ` Pierre-Louis Bossart [this message]
2020-06-22  5:34     ` Vinod Koul
2020-06-22 13:22       ` Pierre-Louis Bossart
2020-06-19  4:54 ` [PATCH 3/3] ALSA: compress: fix partial_drain completion state Vinod Koul
2020-06-19  9:13   ` Srinivas Kandagatla
2020-06-22  5:35     ` Vinod Koul

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