From: David Henningsson Date: Wed, 16 Dec 2020 18:55:22 +0000 (+0100) Subject: pcm: Add snd_pcm_audio_tstamp_type_t constants X-Git-Tag: v1.2.5~150 X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=ea02dbd20a535085638c63c6b8bec94e628486c4;p=alsa-lib.git pcm: Add snd_pcm_audio_tstamp_type_t constants These are mostly a copy-paste from the kernel headers. But since functions snd_pcm_audio_tstamp_config make use of these they should be added to the public API as well. Reported-by: Alex Moon Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai --- diff --git a/include/pcm.h b/include/pcm.h index 5b078231..cf1eea8b 100644 --- a/include/pcm.h +++ b/include/pcm.h @@ -350,6 +350,20 @@ typedef enum _snd_pcm_tstamp_type { SND_PCM_TSTAMP_TYPE_LAST = SND_PCM_TSTAMP_TYPE_MONOTONIC_RAW, } snd_pcm_tstamp_type_t; +typedef enum _snd_pcm_audio_tstamp_type { + /** + * first definition for backwards compatibility only, + * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else + */ + SND_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, + SND_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /**< DMA time, reported as per hw_ptr */ + SND_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /**< link time reported by sample or wallclock counter, reset on startup */ + SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /**< link time reported by sample or wallclock counter, not reset on startup */ + SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /**< link time estimated indirectly */ + SND_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /**< link time synchronized with system time */ + SND_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED +} snd_pcm_audio_tstamp_type_t; + typedef struct _snd_pcm_audio_tstamp_config { /* 5 of max 16 bits used */ unsigned int type_requested:4;