The pcm_readi and pcm_writei also can deal with the mmap read/write.
Also mark the pcm_mmap_read/write functions as deprecated functions and
update the test case.
Add mmap playback support to tinyplay
For the dynamic pcm device, it is valid to specify the backend after
opening it. However, it is invalid to call prepare on a dynamic pcm
device without connecting any backend device. We should not do
pcm_prepare in pcm_open.
See also: Issue #197
tinymix_detail_control took controls' name as its parameter to
identify which control is that we want to print data of. However,
if there are some controls with same name, we will always print
the data of the first one.
reference: https://android.googlesource.com/platform/external/tinyalsa/+/8b7274b2ec686c87673bf39328381acbdea1a333
commit 8b7274b2ec686c87673bf39328381acbdea1a333
author Haynes Mathew George <hgeorge@codeaurora.org>
tinyplay: play PCM up to size specified in the header
tinyplay plays to the end of file without checking whether playback
goes beyond end of data section which its size is specified in the
RIFF wave header. This could lead to playing out unwanted data which
is placed at the end of file.
authored-by: Patrick Lai <plai@codeaurora.org>
Change-Id: I17bd3f6ebca4813f8987585472208c1f52696cae
commit f451f433520fc154de6e371747f21d2f746da83b
author Glenn Kasten <gkasten@google.com>
tinyalsa: fix typos in tinyplay and asoundlib.h
Test: run tinyplay and look for typos in the output
Change-Id: Ieedcc1b7610700aa3d5ff913d5c01105db2c1601
Update the pcm framework to support plugins. Resolve the pcm device node
to be either kernel device or virtual device and setup function pointers
accordingly. Implement framework functionality for pcm_plugin.c for ease
of plugin development. Plugin itself is compiled as shared object (.so)
and dynamically linked from pcm_plugin.c.
Signed-off-by: Bhalchandra Gajare <gajare@codeaurora.org>
Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
The Meson build system is being adopted by projects
such as GNOME, PulseAudio, GStreamer, VLC, systemd, Mesa,
Wayland, X.org, and many others. Having a meson build
upstream in tinyalsa would allow for easy use of tinyalsa
as a Meson subproject in other projects.
https://mesonbuild.com
The current format of the data printed for enumeration controls is to
list all the control values with no separator between them and to place
a comma before the currently selected value. This format is hard to
parse as a human and very difficult to parse automatically. Change this
to separate individual values with a comma and mark the selected value
with a right angle bracket.
For example, the following output is given for the "AEC Loopback"
control on one of our CODECs:
HPOUT1LHPOUT1R, SPKOUTSPKDATLSPKDATR
After the change this becomes:
HPOUT1L, HPOUT1R, > SPKOUT, SPKDATL, SPKDATR,
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
It is only required to obtain the value of the control once whilst
processing tinymix_print_enum. This will significantly reduce the amount
of IOCTLs sent for reading an enum control.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
pcm_writei expects size of data in frames, whereas currently size
is passed as number of bytes. So convert number of bytes to frames
for argument to pcm_writei.
Signed-off-by: Jaikrishna Nemallapudi <jaikrishnax.nemallapudi@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
dvdli