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7ea9ee0064
linux/sound/core
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Srinivas Kandagatla 7ea9ee0064 ALSA: compress: allow setting codec params after next track 
For gapless playback it is possible that each track can have different
codec profile with same decoder, for example we have WMA album,
we may have different tracks as WMA v9, WMA v10 and so on

Or if DSP's like QDSP have abililty to switch decoders on single stream
for each track, then this call could be used to set new codec parameters.

Existing code does not allow to change this profile while doing gapless
playback.

Reuse existing SNDRV_COMPRESS_SET_PARAMS to set this new track params along
some additional checks to enforce proper state machine.

With this new changes now the user can call SNDRV_COMPRESS_SET_PARAMS
anytime after setting next track and additional check in write should
also ensure that params are set before writing new data.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20230619092805.21649-1-srinivas.kandagatla@linaro.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-21 07:28:31 +02:00
..
oss mm: replace vma->vm_flags direct modifications with modifier calls 2023-02-09 16:51:39 -08:00
seq ALSA: seq: ump: Notify UMP protocol change to sequencer 2023-06-12 18:22:33 +02:00
compress_offload.c ALSA: compress: allow setting codec params after next track 2023-06-21 07:28:31 +02:00
control_compat.c ALSA: compat_ioctl: use correct snd_ctl_elem_type_t type 2023-05-17 17:01:51 +02:00
control_led.c ALSA: control-led: use strscpy in set_led_id() 2023-01-09 17:03:24 +01:00
control.c ALSA: control: Keep the previous numid at snd_ctl_rename_id() 2023-06-06 14:34:30 +02:00
ctljack.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
device.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00
hrtimer.c ALSA: timer: Replace tasklet with work 2020-09-09 18:32:52 +02:00
hwdep_compat.c ALSA: compat_ioctl: avoid compat_alloc_user_space 2020-09-21 10:37:07 +02:00
hwdep.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
info_oss.c ALSA: oss: remove useless NULL check before kfree 2021-12-06 10:08:13 +01:00
info.c ALSA: info: Fix llseek return value when using callback 2022-08-17 15:13:30 +02:00
init.c ALSA: core: Make snd_card_free() return void 2023-02-08 13:39:27 +01:00
isadma.c sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
jack.c ALSA: jack: Access input_dev under mutex 2022-04-12 12:19:05 +02:00
Kconfig ALSA: ump: Add legacy raw MIDI support 2023-05-23 12:11:09 +02:00
Makefile ALSA: ump: Add legacy raw MIDI support 2023-05-23 12:11:09 +02:00
memalloc_local.h ALSA: memalloc: remove snd_dma_sg_ops declaration 2022-09-09 09:09:40 +02:00
memalloc.c ALSA: memalloc: Workaround for Xen PV 2023-01-27 09:16:24 +01:00
memory.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
misc.c ALSA: core: Add async signal helpers 2022-07-29 12:57:10 +02:00
pcm_compat.c ALSA: pcm: Avoid reference to status->state 2022-09-27 08:44:05 +02:00
pcm_dmaengine.c ALSA: dmaengine: increment buffer pointer atomically 2022-09-27 08:55:05 +02:00
pcm_drm_eld.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pcm_iec958.c ALSA: iec958: Split status creation and fill 2021-06-08 17:05:41 +02:00
pcm_lib.c ALSA: pcm: use exit controlled loop in snd_pcm_playback_silence() 2023-05-05 18:23:53 +02:00
pcm_local.h ALSA: pcm: Revert "ALSA: pcm: rewrite snd_pcm_playback_silence()" 2023-05-05 18:23:48 +02:00
pcm_memory.c ALSA: pcm: Fix missing return value comments for kernel docs 2022-07-13 13:42:34 +02:00
pcm_misc.c ALSA: pcm: Test for "silence" field in struct "pcm_format_data" 2022-04-11 09:27:56 +02:00
pcm_native.c Revert "ALSA: emu10k1 - delay the PCM interrupts (add pcm_irq_delay parameter)" 2023-05-18 07:29:41 +02:00
pcm_param_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm_timer.c ALSA: timer: Constify snd_timer_hardware definitions 2020-01-03 09:24:07 +01:00
pcm_trace.h ALSA: pcm: fix tracing reason in hw_ptr_error 2022-11-28 14:55:41 +01:00
pcm.c ALSA: pcm: Avoid reference to status->state 2022-09-27 08:44:05 +02:00
rawmidi_compat.c ALSA: rawmidi: UMP support 2023-05-23 12:10:54 +02:00
rawmidi.c ALSA: ump: Additional proc output 2023-05-23 12:10:59 +02:00
seq_device.c ALSA: seq: Fix a potential UAF by wrong private_free call order 2021-09-30 14:13:22 +02:00
sound_oss.c ALSA: oss: Fix potential deadlock at unregistration 2022-10-11 09:02:43 +02:00
sound.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
timer_compat.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
timer.c ALSA: timer: minimize open-coded access to hw.resolution 2023-06-13 07:43:38 +02:00
ump_convert.c ALSA: ump: Fix parsing of 0xFx command 2023-05-25 10:32:59 +02:00
ump_convert.h ALSA: ump: Add legacy raw MIDI support 2023-05-23 12:11:09 +02:00
ump.c ALSA: ump: Add info flag bit for static blocks 2023-06-12 18:22:34 +02:00
vmaster.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00