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Diffstat (limited to 'src/pulsecore/svolume_orc.c')
-rw-r--r-- | src/pulsecore/svolume_orc.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/pulsecore/svolume_orc.c b/src/pulsecore/svolume_orc.c new file mode 100644 index 0000000..730f817 --- /dev/null +++ b/src/pulsecore/svolume_orc.c @@ -0,0 +1,50 @@ +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + Copyright 2009 Wim Taymans <wim.taymans@collabora.co.uk> + Copyright 2010 Arun Raghavan <arun.raghavan@collabora.co.uk> + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2.1 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, see <http://www.gnu.org/licenses/>. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "cpu-orc.h" +#include <pulse/rtclock.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/random.h> +#include <pulsecore/svolume-orc-gen.h> + +pa_do_volume_func_t fallback; + +static void +pa_volume_s16ne_orc(int16_t *samples, const int32_t *volumes, unsigned channels, unsigned length) { + if (channels == 2) { + int64_t v = (int64_t)volumes[1] << 32 | volumes[0]; + pa_volume_s16ne_orc_2ch (samples, v, ((length / (sizeof(int16_t))) / 2)); + } else if (channels == 1) + pa_volume_s16ne_orc_1ch (samples, volumes[0], length / (sizeof(int16_t))); + else + fallback(samples, volumes, channels, length); +} + +void pa_volume_func_init_orc(void) { + pa_log_info("Initialising ORC optimized volume functions."); + + fallback = pa_get_volume_func(PA_SAMPLE_S16NE); + pa_set_volume_func(PA_SAMPLE_S16NE, (pa_do_volume_func_t) pa_volume_s16ne_orc); +} |