This uses the existing optional runtime ffmpeg dependency to add support
for m4a files (and in theory whatever other file formats ffmpeg
supports) to the import audio dialog.
The same functionality is mostly already available via Session -> Open
Video, with the "import audio only" selection (even though m4a isn't
currently included as one of the video formats, it still works). Having
this in the import audio dialog however seems much more user friendly.
This fixes various issues with signal emission(s) when creating
regions from withing playlist operations.
eg. Playlist::duplicate() takes RegionWriteLock() and then calls
RegionFactory::create().
see also 6a82aa392c
This is a special case of an Internal Return processor
dedicated to the monitor-section. The main use-case will
be to collect signals from physical ports in a realtime-safe
manner (no connections or Port creation)
This is in preparation to move RoueUI::SoloMuteRelease
to libardour to reuse the implementation in various places.
This also prepares the solo logic for exclusive port-monitoring.
This allows for rt-safe monitoring, collecting data
directly from input-ports without requiring a dedicated connection
or dynamic ARDOUR::AudioPort creation.
Older compilers do not yet have fmaintrin.h. This fixes compile errors:
```
x86_functions_fma.cc:51:39: error: '_mm_fmadd_ss' was not declared in this scope
x86_functions_fma.cc:85:35: error: '_mm256_fmadd_ps' was not declared in this scope
x86_functions_fma.cc:106:35: error: '_mm256_fmadd_ps' was not declared in this scope
x86_functions_fma.cc:129:39: error: '_mm_fmadd_ss' was not declared in this scope
```
By supporting FMA extension, the number of instruction needed
for multiply accumulate to mix channels are reduced. Since,
this extension has been around since middle of 2012, more
computers have this instruction set available.
For the time being (since bc78629788) vst3 plugin uses
the Control Protocol API for track selection and focus, and
hence users of libardour also need to use libardour_cp
Apparently gcc-6.2 with -O3 and -mfpu=neon can use ARM instructions
that requires 64bit alignment (here vst1.64) with data that
is not 64bit aligned (g->strcache) https://i.imgur.com/vYktsUn.png
So we need to be able to build "arm_neon_functions.cc" with
-mfpu=neon, while not automatically using NEON for the rest
of the codebase, unless explicitly asked for.
This commit adds ARM NEON optimized routines for the following procedures
below:
*_compute_peak
*_find_peaks
*_apply_gain_to_buffer
*_mix_buffers_with_gain
*_mix_buffers_no_gain
*_copy_vector
NEON optimized routines have a prefix of: arm_neon_
* Windows: delete waf installed .dll.a files
* Windows: override waf's conf.env.LIBDIR = conf.env.BINDIR
with explicit --libdir
* Windows: fix asm (`x86_64-w64-mingw32-as` -D flag is for
debug messages, -D defines are not available)
* Mac: override waf adding -install_name (and
-Wl,-compatibility_version -Wl,-current_version)
by moving -dynamiclib from linkflags to ldflags
* Mac: Allow libs with compat version number suffix
(not needed anymore, but may help in the future)
Robin Gareus
Marijn Kruisselbrink
Ayan Shafqat
mx
Paul Davis
David Robillard
Nikolaus Gullotta
David Runge
