pulsecore/object.c pulsecore/object.h \
pulsecore/play-memblockq.c pulsecore/play-memblockq.h \
pulsecore/play-memchunk.c pulsecore/play-memchunk.h \
+ pulsecore/remap.c pulsecore/remap.h \
pulsecore/resampler.c pulsecore/resampler.h \
pulsecore/rtpoll.c pulsecore/rtpoll.h \
pulsecore/sample-util.c pulsecore/sample-util.h \
--- /dev/null
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2009 Wim Taymans <wim.taymans@collabora.co.uk.com>
+
+ 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+
+#include <pulse/sample.h>
+#include <pulsecore/log.h>
+#include <pulsecore/macro.h>
+
+#include "remap.h"
+
+static void remap_mono_to_stereo_c (pa_remap_t *m, void *dst, const void *src, unsigned n) {
+ unsigned i;
+
+ switch (*m->format) {
+ case PA_SAMPLE_FLOAT32NE:
+ {
+ float *d, *s;
+
+ d = (float *) dst;
+ s = (float *) src;
+
+ for (i = n >> 2; i; i--) {
+ d[0] = d[1] = s[0];
+ d[2] = d[3] = s[1];
+ d[4] = d[5] = s[2];
+ d[6] = d[7] = s[3];
+ s += 4;
+ d += 8;
+ }
+ for (i = n & 3; i; i--) {
+ d[0] = d[1] = s[0];
+ s++;
+ d += 2;
+ }
+ break;
+ }
+ case PA_SAMPLE_S16NE:
+ {
+ int16_t *d, *s;
+
+ d = (int16_t *) dst;
+ s = (int16_t *) src;
+
+ for (i = n >> 2; i; i--) {
+ d[0] = d[1] = s[0];
+ d[2] = d[3] = s[1];
+ d[4] = d[5] = s[2];
+ d[6] = d[7] = s[3];
+ s += 4;
+ d += 8;
+ }
+ for (i = n & 3; i; i--) {
+ d[0] = d[1] = s[0];
+ s++;
+ d += 2;
+ }
+ break;
+ }
+ default:
+ pa_assert_not_reached();
+ }
+}
+
+static void remap_channels_matrix_c (pa_remap_t *m, void *dst, const void *src, unsigned n) {
+ unsigned oc, ic, i;
+ unsigned n_ic, n_oc;
+
+ n_ic = m->i_ss->channels;
+ n_oc = m->o_ss->channels;
+
+ switch (*m->format) {
+ case PA_SAMPLE_FLOAT32NE:
+ {
+ float *d, *s;
+
+ memset(dst, 0, n * sizeof (float) * n_oc);
+
+ for (oc = 0; oc < n_oc; oc++) {
+
+ for (ic = 0; ic < n_ic; ic++) {
+ float vol;
+
+ vol = m->map_table_f[oc][ic];
+
+ if (vol <= 0.0)
+ continue;
+
+ d = (float *)dst + oc;
+ s = (float *)src + ic;
+
+ if (vol >= 1.0) {
+ for (i = n; i > 0; i--, s += n_ic, d += n_oc)
+ *d += *s;
+ } else {
+ for (i = n; i > 0; i--, s += n_ic, d += n_oc)
+ *d += *s * vol;
+ }
+ }
+ }
+
+ break;
+ }
+ case PA_SAMPLE_S16NE:
+ {
+ int16_t *d, *s;
+
+ memset(dst, 0, n * sizeof (int16_t) * n_oc);
+
+ for (oc = 0; oc < n_oc; oc++) {
+
+ for (ic = 0; ic < n_ic; ic++) {
+ int32_t vol;
+
+ vol = m->map_table_i[oc][ic];
+
+ if (vol <= 0)
+ continue;
+
+ d = (int16_t *)dst + oc;
+ s = (int16_t *)src + ic;
+
+ if (vol >= 0x10000) {
+ for (i = n; i > 0; i--, s += n_ic, d += n_oc)
+ *d += *s;
+ } else {
+ for (i = n; i > 0; i--, s += n_ic, d += n_oc)
+ *d += (int16_t) (((int32_t)*s * vol) >> 16);
+ }
+ }
+ }
+ break;
+ }
+ default:
+ pa_assert_not_reached();
+ }
+}
+
+/* set the function that will execute the remapping based on the matrices */
+static void init_remap_c (pa_remap_t *m) {
+ unsigned n_oc, n_ic;
+
+ n_oc = m->o_ss->channels;
+ n_ic = m->i_ss->channels;
+
+ /* find some common channel remappings, fall back to full matrix operation. */
+ if (n_ic == 1 && n_oc == 2 &&
+ m->map_table_f[0][0] >= 1.0 && m->map_table_f[1][0] >= 1.0) {
+ m->do_remap = (pa_do_remap_func_t) remap_mono_to_stereo_c;
+ pa_log_info("Using mono to stereo remapping");
+ } else {
+ m->do_remap = (pa_do_remap_func_t) remap_channels_matrix_c;
+ pa_log_info("Using generic matrix remapping");
+ }
+}
+
+
+/* default C implementation */
+static pa_init_remap_func_t remap_func = init_remap_c;
+
+void pa_init_remap (pa_remap_t *m) {
+ pa_assert (remap_func);
+
+ /* just call the installed remap init functions */
+ remap_func (m);
+}
+
+pa_init_remap_func_t pa_get_init_remap_func(void) {
+ return remap_func;
+}
+
+void pa_set_init_remap_func(pa_init_remap_func_t func) {
+ remap_func = func;
+}
--- /dev/null
+#ifndef fooremapfoo
+#define fooremapfoo
+
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2009 Wim Taymans <wim.taymans@collabora.co.uk.com>
+
+ 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#include <pulse/sample.h>
+
+typedef struct pa_remap pa_remap_t;
+
+typedef void (*pa_do_remap_func_t) (pa_remap_t *m, void *d, const void *s, unsigned n);
+
+struct pa_remap {
+ pa_sample_format_t *format;
+ pa_sample_spec *i_ss, *o_ss;
+ float map_table_f[PA_CHANNELS_MAX][PA_CHANNELS_MAX];
+ int32_t map_table_i[PA_CHANNELS_MAX][PA_CHANNELS_MAX];
+ pa_do_remap_func_t do_remap;
+};
+
+void pa_init_remap (pa_remap_t *m);
+
+/* custom installation of init functions */
+typedef void (*pa_init_remap_func_t) (pa_remap_t *m);
+
+pa_init_remap_func_t pa_get_init_remap_func(void);
+void pa_set_init_remap_func(pa_init_remap_func_t func);
+
+#endif /* fooremapfoo */
#include "ffmpeg/avcodec.h"
#include "resampler.h"
+#include "remap.h"
/* Number of samples of extra space we allow the resamplers to return */
#define EXTRA_FRAMES 128
-typedef struct pa_remap pa_remap_t;
-
-typedef void (*pa_do_remap_func_t) (pa_remap_t *m, void *d, const void *s, unsigned n);
-
-struct pa_remap {
- pa_sample_format_t *format;
- pa_sample_spec *i_ss, *o_ss;
- float map_table_f[PA_CHANNELS_MAX][PA_CHANNELS_MAX];
- int32_t map_table_i[PA_CHANNELS_MAX][PA_CHANNELS_MAX];
- pa_do_remap_func_t do_remap;
-};
-
-static void remap_channels_matrix (pa_remap_t *m, void *dst, const void *src, unsigned n);
-static void remap_mono_to_stereo(pa_remap_t *m, void *dst, const void *src, unsigned n);
-
struct pa_resampler {
pa_resample_method_t method;
pa_resample_flags_t flags;
pa_log_debug("Channel matrix:\n%s", t = pa_strbuf_tostring_free(s));
pa_xfree(t);
- /* find some common channel remappings, fall back to full matrix operation. */
- if (n_ic == 1 && n_oc == 2 &&
- m->map_table_f[0][0] >= 1.0 && m->map_table_f[1][0] >= 1.0) {
- m->do_remap = (pa_do_remap_func_t) remap_mono_to_stereo;;
- pa_log_info("Using mono to stereo remapping");
- } else {
- m->do_remap = (pa_do_remap_func_t) remap_channels_matrix;
- pa_log_info("Using generic matrix remapping");
- }
-
+ /* initialize the remapping function */
+ pa_init_remap (m);
}
static pa_memchunk* convert_to_work_format(pa_resampler *r, pa_memchunk *input) {
return &r->buf1;
}
-static void remap_mono_to_stereo(pa_remap_t *m, void *dst, const void *src, unsigned n) {
- unsigned i;
-
- switch (*m->format) {
- case PA_SAMPLE_FLOAT32NE:
- {
- float *d, *s;
-
- d = (float *) dst;
- s = (float *) src;
-
- for (i = n >> 2; i; i--) {
- d[0] = d[1] = s[0];
- d[2] = d[3] = s[1];
- d[4] = d[5] = s[2];
- d[6] = d[7] = s[3];
- s += 4;
- d += 8;
- }
- for (i = n & 3; i; i--) {
- d[0] = d[1] = s[0];
- s++;
- d += 2;
- }
- break;
- }
- case PA_SAMPLE_S16NE:
- {
- int16_t *d, *s;
-
- d = (int16_t *) dst;
- s = (int16_t *) src;
-
- for (i = n >> 2; i; i--) {
- d[0] = d[1] = s[0];
- d[2] = d[3] = s[1];
- d[4] = d[5] = s[2];
- d[6] = d[7] = s[3];
- s += 4;
- d += 8;
- }
- for (i = n & 3; i; i--) {
- d[0] = d[1] = s[0];
- s++;
- d += 2;
- }
- break;
- }
- default:
- pa_assert_not_reached();
- }
-}
-
-static void remap_channels_matrix (pa_remap_t *m, void *dst, const void *src, unsigned n) {
- unsigned oc, ic, i;
- unsigned n_ic, n_oc;
-
- n_ic = m->i_ss->channels;
- n_oc = m->o_ss->channels;
-
- switch (*m->format) {
- case PA_SAMPLE_FLOAT32NE:
- {
- float *d, *s;
-
- memset(dst, 0, n * sizeof (float) * n_oc);
-
- for (oc = 0; oc < n_oc; oc++) {
-
- for (ic = 0; ic < n_ic; ic++) {
- float vol;
-
- vol = m->map_table_f[oc][ic];
-
- if (vol <= 0.0)
- continue;
-
- d = (float *)dst + oc;
- s = (float *)src + ic;
-
- if (vol >= 1.0) {
- for (i = n; i > 0; i--, s += n_ic, d += n_oc)
- *d += *s;
- } else {
- for (i = n; i > 0; i--, s += n_ic, d += n_oc)
- *d += *s * vol;
- }
- }
- }
-
- break;
- }
- case PA_SAMPLE_S16NE:
- {
- int16_t *d, *s;
-
- memset(dst, 0, n * sizeof (int16_t) * n_oc);
-
- for (oc = 0; oc < n_oc; oc++) {
-
- for (ic = 0; ic < n_ic; ic++) {
- int32_t vol;
-
- vol = m->map_table_i[oc][ic];
-
- if (vol <= 0)
- continue;
-
- d = (int16_t *)dst + oc;
- s = (int16_t *)src + ic;
-
- if (vol >= 0x10000) {
- for (i = n; i > 0; i--, s += n_ic, d += n_oc)
- *d += *s;
- } else {
- for (i = n; i > 0; i--, s += n_ic, d += n_oc)
- *d += (int16_t) (((int32_t)*s * vol) >> 16);
- }
- }
- }
- break;
- }
- default:
- pa_assert_not_reached();
- }
-}
-
static pa_memchunk *remap_channels(pa_resampler *r, pa_memchunk *input) {
unsigned in_n_samples, out_n_samples, n_frames;
void *src, *dst;