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From: Adam Miartus <amiartus@de.adit-jv.com>
To: patch@alsa-project.org
Cc: alsa-devel@alsa-project.org
Subject: [PATCH 0/2] add pcm_file support in MMAP read access mode
Date: Thu, 23 May 2019 15:00:38 +0200	[thread overview]
Message-ID: <1558616440-21044-1-git-send-email-amiartus@de.adit-jv.com> (raw)

adds support for overwritting input buffer in MMAP access mode for
in pcm_file plugin

new api pcm_fast_ops callback mmap_begin is introduced to ease the
operation needed to overwrite mmaped buffer. this allows to modify
only the next continuous part of data in ring buffer.

Adam Miartus (2):
  pcm: add mmap_begin callback to snd_pcm_fast_ops_t api
  pcm_file: add infile read support for mmap mode

 src/pcm/pcm.c       |  6 ++++++
 src/pcm/pcm_file.c  | 31 +++++++++++++++++++++++++++++++
 src/pcm/pcm_local.h |  1 +
 3 files changed, 38 insertions(+)

-- 
2.7.4

             reply	other threads:[~2019-05-23 13:00 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-23 13:00 Adam Miartus [this message]
2019-05-23 13:00 ` [PATCH 1/2] pcm: add mmap_begin callback to snd_pcm_fast_ops_t api Adam Miartus
2019-05-23 13:00 ` [PATCH 2/2] pcm_file: add infile read support for mmap mode Adam Miartus
2019-05-24  9:17 ` [ALSA patch] [PATCH 0/2] add pcm_file support in MMAP read access mode Takashi Iwai

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