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Commit d219b293 authored by Surendar Karka's avatar Surendar Karka Committed by Gerrit - the friendly Code Review server
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uapi: sound: latency mode support for transcode loopback 



Add metadata to configure latency mode for DSP transcode
loopback to set legacy or low latency path. Userspace API
introduced to configure the same.

Change-Id: I914c68a9e9d8647530b72c42548e571b7508c423
Signed-off-by: default avatarSiddartha Shaik <sshaik@codeaurora.org>
Signed-off-by: default avatarSurendar Karka <skarka@codeaurora.org>
parent 4f2e4b26

include/uapi/sound/compress_offload.h

+7 −0
Original line number Diff line number Diff line
@@ -140,6 +140,11 @@ struct snd_compr_audio_info { 
#define SNDRV_COMPRESS_CLK_REC_MODE_NONE 0

#define SNDRV_COMPRESS_CLK_REC_MODE_AUTO 1



enum sndrv_compress_latency_mode {

	SNDRV_COMPRESS_LEGACY_LATENCY_MODE = 0,

	SNDRV_COMPRESS_LOW_LATENCY_MODE = 1,

};



/**

 * enum sndrv_compress_encoder

 * @SNDRV_COMPRESS_ENCODER_PADDING: no of samples appended by the encoder at the
@@ -166,6 +171,7 @@ enum sndrv_compress_encoder { 
	SNDRV_COMPRESS_START_DELAY = 9,

	SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK = 10,

	SNDRV_COMPRESS_ADJUST_SESSION_CLOCK = 11,

	SNDRV_COMPRESS_LATENCY_MODE = 12,

};



#define SNDRV_COMPRESS_MIN_BLK_SIZE SNDRV_COMPRESS_MIN_BLK_SIZE
@@ -178,6 +184,7 @@ enum sndrv_compress_encoder { 
#define SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK \

		SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK

#define SNDRV_COMPRESS_ADJUST_SESSION_CLOCK SNDRV_COMPRESS_ADJUST_SESSION_CLOCK

#define SNDRV_COMPRESS_LATENCY_MODE SNDRV_COMPRESS_LATENCY_MODE



/**

 * struct snd_compr_metadata - compressed stream metadata