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ALSA: compress: Add support to send codec specific data

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Codec specific  metadata is sent only for first stream in gapless
playback. This causes incorrect configuration to be set for second
stream and distortions are observed due to framedrops in adsp.
Add support to send codec specific format during start of
next stream in gapless using set_next_track_param.

Change-Id: Ieec6b2afedec156e47873efcad9b3571160b0a29
Signed-off-by: Chaithanya Krishna Bacharaju <chaithan@codeaurora.org>
Signed-off-by: Alexy Joseph <alexyj@codeaurora.org>
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Meng Wang <mengw@codeaurora.org>
This commit is contained in:
Meng Wang 2019-12-06 09:48:09 +08:00
commit 6503a2bb42
1 changed files with 6 additions and 0 deletions
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6
include/uapi/sound/compress_offload.h
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@ -185,6 +185,8 @@ struct snd_compr_metadata {
* SNDRV_COMPRESS_STOP: stop a running stream, discarding ring buffer content
* and the buffers currently with DSP
* SNDRV_COMPRESS_DRAIN: Play till end of buffers and stop after that
* SNDRV_COMPRESS_SET_NEXT_TRACK_PARAM: send codec specific data for the next
* track in gapless
* SNDRV_COMPRESS_IOCTL_VERSION: Query the API version
*/
#define SNDRV_COMPRESS_IOCTL_VERSION _IOR('C', 0x00, int)
@ -206,6 +208,10 @@ struct snd_compr_metadata {
#define SNDRV_COMPRESS_DRAIN _IO('C', 0x34)
#define SNDRV_COMPRESS_NEXT_TRACK _IO('C', 0x35)
#define SNDRV_COMPRESS_PARTIAL_DRAIN _IO('C', 0x36)
#ifdef CONFIG_AUDIO_QGKI
#define SNDRV_COMPRESS_SET_NEXT_TRACK_PARAM\
_IOW('C', 0x80, union snd_codec_options)
#endif
/*
* TODO
* 1. add mmap support