The contents of the snd_pcm_scope_ops structure are not going to be
changed, so we might as well declare is as constant. This change is
backwards compatible, and avoids warnings if some ops structure is
actually defined as const.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Extend the PCM-rate plugin protocol to allow the host to query the
supported sample rates. The protocol version is bumped to 0x010002,
and the version number negotiaion is slightly changed.
Now the plugin is supposed to fill the version it supports in return.
The old versioned plugins are still supported, but they may spew
version-mismatch warning prints.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The off_t in kernel struct (for ioctls) is actually different from the
definition of user-space off_t. The kernel off_t is equial with long
while user-space off_t depends on the large-file support.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Increase the components array size from 80 to 128 chars.
The string there is supposed to be null-terminated, so it can cover
the smaller array size in the older version, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The simpler mixer interface is not legacy, so the header file shouldn't claim
otherwise.
Fixes bug#3569
From: Lennart Poettering <mznyfn@0pointer.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Updated IEC958 consumer status channel definitions according
to the third edition of IEC60958-3 spec.
Signed-off-by: Pawel Moll <pawel.moll@st.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Added definition for byte 4 of SPDIF channel status, according to
second edition of IEC 60958-3 (consumer) spec.
Signed-off-by: Pawel MOLL <pawel.moll@st.com>
When only SND_PCM_OLD_HW_PARAMS_API is defined but no
SND_PCM_OLD_SW_PARAMS_API, the declerations of some obsoleted functions
conflict. Although the apps should define both at the same time, it's
not good to break. Fixed the ifdef now.
control.h has function declarations with hwdep or rawmidi types
that aren't included when built without the corresponding supports.
Add ifdef appropriately to fix this.
Rename the local functions to snd1_* so that they won't be exported
out of alsa-lib.
Some functions are still kept because aserver requires them. Sigh.
Remove obsoleted sequencer instrument layer from alsa-lib.
The old symbols are compiled in as default as dummy functions
(unless --disable-old-symbols is given to configure) so that
the old binaries can still work more or less.
Putting assert in the public macros isn't good idea at all.
Let's get rid of them.
Also, clean up snd*_alloca() functions to use a helper macro
instead of copy and paste.
Export helper functions to convert dB level and range.
snd_tlv_*dB*() are to convert dB level or range directly from TLV data.
snd_ctl_*dB*() are to get dB level or range from a control element.
Change the rate converter type to allow string arrays in addition to
a string. When a string array is given, the rate plugin probes each
string and try to load the converter plugin in the order of the list.
For example, you can set
defaults.pcm.rate_converter [ "samplerate" "linear" ]
so that samplerate plugin is preferred to linear plugin if it's
installed.
Check _POSIX_SOURCE for struct timeval definition.
In rare cases, _POSIX_C_SOURCE isn't defined but only _POSIX_SOURCE
is set, and it results in the confliction of timeval definition.
