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-rw-r--r--src/pulsecore/sndfile-util.c462
1 files changed, 462 insertions, 0 deletions
diff --git a/src/pulsecore/sndfile-util.c b/src/pulsecore/sndfile-util.c
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+++ b/src/pulsecore/sndfile-util.c
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+/***
+ This file is part of PulseAudio.
+
+ Copyright 2009 Lennart Poettering
+
+ 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
+
+/* Shared between pacat/parec/paplay and the server */
+
+#include <pulse/xmalloc.h>
+#include <pulse/utf8.h>
+
+#include <pulsecore/macro.h>
+#include <pulsecore/core-util.h>
+
+#include "sndfile-util.h"
+
+int pa_sndfile_read_sample_spec(SNDFILE *sf, pa_sample_spec *ss) {
+ SF_INFO sfi;
+
+ pa_assert(sf);
+ pa_assert(ss);
+
+ pa_zero(sfi);
+ pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
+
+ switch (sfi.format & SF_FORMAT_SUBMASK) {
+
+ case SF_FORMAT_PCM_16:
+ case SF_FORMAT_PCM_U8:
+ case SF_FORMAT_PCM_S8:
+ ss->format = PA_SAMPLE_S16NE;
+ break;
+
+ case SF_FORMAT_PCM_24:
+ case SF_FORMAT_PCM_32:
+ ss->format = PA_SAMPLE_S32NE;
+ break;
+
+ case SF_FORMAT_ULAW:
+ ss->format = PA_SAMPLE_ULAW;
+ break;
+
+ case SF_FORMAT_ALAW:
+ ss->format = PA_SAMPLE_ALAW;
+ break;
+
+ case SF_FORMAT_FLOAT:
+ case SF_FORMAT_DOUBLE:
+ default:
+ ss->format = PA_SAMPLE_FLOAT32NE;
+ break;
+ }
+
+ ss->rate = (uint32_t) sfi.samplerate;
+ ss->channels = (uint8_t) sfi.channels;
+
+ if (!pa_sample_spec_valid(ss))
+ return -1;
+
+ return 0;
+}
+
+int pa_sndfile_write_sample_spec(SF_INFO *sfi, pa_sample_spec *ss) {
+ pa_assert(sfi);
+ pa_assert(ss);
+
+ sfi->samplerate = (int) ss->rate;
+ sfi->channels = (int) ss->channels;
+
+ if (pa_sample_format_is_le(ss->format) > 0)
+ sfi->format = SF_ENDIAN_LITTLE;
+ else if (pa_sample_format_is_be(ss->format) > 0)
+ sfi->format = SF_ENDIAN_BIG;
+
+ switch (ss->format) {
+
+ case PA_SAMPLE_U8:
+ ss->format = PA_SAMPLE_S16NE;
+ sfi->format = SF_FORMAT_PCM_U8;
+ break;
+
+ case PA_SAMPLE_S16LE:
+ case PA_SAMPLE_S16BE:
+ ss->format = PA_SAMPLE_S16NE;
+ sfi->format |= SF_FORMAT_PCM_16;
+ break;
+
+ case PA_SAMPLE_S24LE:
+ case PA_SAMPLE_S24BE:
+ case PA_SAMPLE_S24_32LE:
+ case PA_SAMPLE_S24_32BE:
+ ss->format = PA_SAMPLE_S32NE;
+ sfi->format |= SF_FORMAT_PCM_24;
+ break;
+
+ case PA_SAMPLE_S32LE:
+ case PA_SAMPLE_S32BE:
+ ss->format = PA_SAMPLE_S32NE;
+ sfi->format |= SF_FORMAT_PCM_32;
+ break;
+
+ case PA_SAMPLE_ULAW:
+ sfi->format = SF_FORMAT_ULAW;
+ break;
+
+ case PA_SAMPLE_ALAW:
+ sfi->format = SF_FORMAT_ALAW;
+ break;
+
+ case PA_SAMPLE_FLOAT32LE:
+ case PA_SAMPLE_FLOAT32BE:
+ default:
+ ss->format = PA_SAMPLE_FLOAT32NE;
+ sfi->format |= SF_FORMAT_FLOAT;
+ break;
+ }
+
+
+ if (!pa_sample_spec_valid(ss))
+ return -1;
+
+ return 0;
+}
+
+int pa_sndfile_read_channel_map(SNDFILE *sf, pa_channel_map *cm) {
+
+ static const pa_channel_position_t table[] = {
+ [SF_CHANNEL_MAP_MONO] = PA_CHANNEL_POSITION_MONO,
+ [SF_CHANNEL_MAP_LEFT] = PA_CHANNEL_POSITION_FRONT_LEFT, /* libsndfile distuingishes left und front-left, which we don't */
+ [SF_CHANNEL_MAP_RIGHT] = PA_CHANNEL_POSITION_FRONT_RIGHT,
+ [SF_CHANNEL_MAP_CENTER] = PA_CHANNEL_POSITION_FRONT_CENTER,
+ [SF_CHANNEL_MAP_FRONT_LEFT] = PA_CHANNEL_POSITION_FRONT_LEFT,
+ [SF_CHANNEL_MAP_FRONT_RIGHT] = PA_CHANNEL_POSITION_FRONT_RIGHT,
+ [SF_CHANNEL_MAP_FRONT_CENTER] = PA_CHANNEL_POSITION_FRONT_CENTER,
+ [SF_CHANNEL_MAP_REAR_CENTER] = PA_CHANNEL_POSITION_REAR_CENTER,
+ [SF_CHANNEL_MAP_REAR_LEFT] = PA_CHANNEL_POSITION_REAR_LEFT,
+ [SF_CHANNEL_MAP_REAR_RIGHT] = PA_CHANNEL_POSITION_REAR_RIGHT,
+ [SF_CHANNEL_MAP_LFE] = PA_CHANNEL_POSITION_LFE,
+ [SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER] = PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
+ [SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
+ [SF_CHANNEL_MAP_SIDE_LEFT] = PA_CHANNEL_POSITION_SIDE_LEFT,
+ [SF_CHANNEL_MAP_SIDE_RIGHT] = PA_CHANNEL_POSITION_SIDE_RIGHT,
+ [SF_CHANNEL_MAP_TOP_CENTER] = PA_CHANNEL_POSITION_TOP_CENTER,
+ [SF_CHANNEL_MAP_TOP_FRONT_LEFT] = PA_CHANNEL_POSITION_TOP_FRONT_LEFT,
+ [SF_CHANNEL_MAP_TOP_FRONT_RIGHT] = PA_CHANNEL_POSITION_TOP_FRONT_RIGHT,
+ [SF_CHANNEL_MAP_TOP_FRONT_CENTER] = PA_CHANNEL_POSITION_TOP_FRONT_CENTER,
+ [SF_CHANNEL_MAP_TOP_REAR_LEFT] = PA_CHANNEL_POSITION_TOP_REAR_LEFT,
+ [SF_CHANNEL_MAP_TOP_REAR_RIGHT] = PA_CHANNEL_POSITION_TOP_REAR_RIGHT,
+ [SF_CHANNEL_MAP_TOP_REAR_CENTER] = PA_CHANNEL_POSITION_TOP_REAR_CENTER
+ };
+
+ SF_INFO sfi;
+ int *channels;
+ unsigned c;
+
+ pa_assert(sf);
+ pa_assert(cm);
+
+ pa_zero(sfi);
+ pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
+
+ channels = pa_xnew(int, sfi.channels);
+ if (!sf_command(sf, SFC_GET_CHANNEL_MAP_INFO,
+ channels, sizeof(channels[0]) * sfi.channels)) {
+
+ pa_xfree(channels);
+ return -1;
+ }
+
+ cm->channels = (uint8_t) sfi.channels;
+ for (c = 0; c < cm->channels; c++) {
+ if (channels[c] <= SF_CHANNEL_MAP_INVALID ||
+ (unsigned) channels[c] >= PA_ELEMENTSOF(table)) {
+ pa_xfree(channels);
+ return -1;
+ }
+
+ cm->map[c] = table[channels[c]];
+ }
+
+ pa_xfree(channels);
+
+ if (!pa_channel_map_valid(cm))
+ return -1;
+
+ return 0;
+}
+
+int pa_sndfile_write_channel_map(SNDFILE *sf, pa_channel_map *cm) {
+ static const int table[PA_CHANNEL_POSITION_MAX] = {
+ [PA_CHANNEL_POSITION_MONO] = SF_CHANNEL_MAP_MONO,
+
+ [PA_CHANNEL_POSITION_FRONT_LEFT] = SF_CHANNEL_MAP_FRONT_LEFT,
+ [PA_CHANNEL_POSITION_FRONT_RIGHT] = SF_CHANNEL_MAP_FRONT_RIGHT,
+ [PA_CHANNEL_POSITION_FRONT_CENTER] = SF_CHANNEL_MAP_FRONT_CENTER,
+
+ [PA_CHANNEL_POSITION_REAR_CENTER] = SF_CHANNEL_MAP_REAR_CENTER,
+ [PA_CHANNEL_POSITION_REAR_LEFT] = SF_CHANNEL_MAP_REAR_LEFT,
+ [PA_CHANNEL_POSITION_REAR_RIGHT] = SF_CHANNEL_MAP_REAR_RIGHT,
+
+ [PA_CHANNEL_POSITION_LFE] = SF_CHANNEL_MAP_LFE,
+
+ [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER,
+ [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER,
+
+ [PA_CHANNEL_POSITION_SIDE_LEFT] = SF_CHANNEL_MAP_SIDE_LEFT,
+ [PA_CHANNEL_POSITION_SIDE_RIGHT] = SF_CHANNEL_MAP_SIDE_RIGHT,
+
+ [PA_CHANNEL_POSITION_AUX0] = -1,
+ [PA_CHANNEL_POSITION_AUX1] = -1,
+ [PA_CHANNEL_POSITION_AUX2] = -1,
+ [PA_CHANNEL_POSITION_AUX3] = -1,
+ [PA_CHANNEL_POSITION_AUX4] = -1,
+ [PA_CHANNEL_POSITION_AUX5] = -1,
+ [PA_CHANNEL_POSITION_AUX6] = -1,
+ [PA_CHANNEL_POSITION_AUX7] = -1,
+ [PA_CHANNEL_POSITION_AUX8] = -1,
+ [PA_CHANNEL_POSITION_AUX9] = -1,
+ [PA_CHANNEL_POSITION_AUX10] = -1,
+ [PA_CHANNEL_POSITION_AUX11] = -1,
+ [PA_CHANNEL_POSITION_AUX12] = -1,
+ [PA_CHANNEL_POSITION_AUX13] = -1,
+ [PA_CHANNEL_POSITION_AUX14] = -1,
+ [PA_CHANNEL_POSITION_AUX15] = -1,
+ [PA_CHANNEL_POSITION_AUX16] = -1,
+ [PA_CHANNEL_POSITION_AUX17] = -1,
+ [PA_CHANNEL_POSITION_AUX18] = -1,
+ [PA_CHANNEL_POSITION_AUX19] = -1,
+ [PA_CHANNEL_POSITION_AUX20] = -1,
+ [PA_CHANNEL_POSITION_AUX21] = -1,
+ [PA_CHANNEL_POSITION_AUX22] = -1,
+ [PA_CHANNEL_POSITION_AUX23] = -1,
+ [PA_CHANNEL_POSITION_AUX24] = -1,
+ [PA_CHANNEL_POSITION_AUX25] = -1,
+ [PA_CHANNEL_POSITION_AUX26] = -1,
+ [PA_CHANNEL_POSITION_AUX27] = -1,
+ [PA_CHANNEL_POSITION_AUX28] = -1,
+ [PA_CHANNEL_POSITION_AUX29] = -1,
+ [PA_CHANNEL_POSITION_AUX30] = -1,
+ [PA_CHANNEL_POSITION_AUX31] = -1,
+
+ [PA_CHANNEL_POSITION_TOP_CENTER] = SF_CHANNEL_MAP_TOP_CENTER,
+
+ [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SF_CHANNEL_MAP_TOP_FRONT_LEFT,
+ [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SF_CHANNEL_MAP_TOP_FRONT_RIGHT,
+ [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SF_CHANNEL_MAP_TOP_FRONT_CENTER ,
+
+ [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SF_CHANNEL_MAP_TOP_REAR_LEFT,
+ [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SF_CHANNEL_MAP_TOP_REAR_RIGHT,
+ [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SF_CHANNEL_MAP_TOP_REAR_CENTER,
+ };
+
+ int *channels;
+ unsigned c;
+
+ pa_assert(sf);
+ pa_assert(cm);
+
+ /* Suppress channel mapping for the obvious cases */
+ if (cm->channels == 1 && cm->map[0] == PA_CHANNEL_POSITION_MONO)
+ return 0;
+
+ if (cm->channels == 2 &&
+ cm->map[0] == PA_CHANNEL_POSITION_FRONT_LEFT &&
+ cm->map[1] == PA_CHANNEL_POSITION_FRONT_RIGHT)
+ return 0;
+
+ channels = pa_xnew(int, cm->channels);
+ for (c = 0; c < cm->channels; c++) {
+
+ if (cm->map[c] < 0 ||
+ cm->map[c] >= PA_CHANNEL_POSITION_MAX ||
+ table[cm->map[c]] < 0) {
+ pa_xfree(channels);
+ return -1;
+ }
+
+ channels[c] = table[cm->map[c]];
+ }
+
+ if (!sf_command(sf, SFC_SET_CHANNEL_MAP_INFO,
+ channels, sizeof(channels[0]) * cm->channels)) {
+ pa_xfree(channels);
+ return -1;
+ }
+
+ pa_xfree(channels);
+ return 0;
+}
+
+void pa_sndfile_init_proplist(SNDFILE *sf, pa_proplist *p) {
+
+ static const char* table[] = {
+ [SF_STR_TITLE] = PA_PROP_MEDIA_TITLE,
+ [SF_STR_COPYRIGHT] = PA_PROP_MEDIA_COPYRIGHT,
+ [SF_STR_SOFTWARE] = PA_PROP_MEDIA_SOFTWARE,
+ [SF_STR_ARTIST] = PA_PROP_MEDIA_ARTIST,
+ [SF_STR_COMMENT] = "media.comment",
+ [SF_STR_DATE] = "media.date"
+ };
+
+ SF_INFO sfi;
+ SF_FORMAT_INFO fi;
+ unsigned c;
+
+ pa_assert(sf);
+ pa_assert(p);
+
+ for (c = 0; c < PA_ELEMENTSOF(table); c++) {
+ const char *s;
+ char *t;
+
+ if (!table[c])
+ continue;
+
+ if (!(s = sf_get_string(sf, c)))
+ continue;
+
+ t = pa_utf8_filter(s);
+ pa_proplist_sets(p, table[c], t);
+ pa_xfree(t);
+ }
+
+ pa_zero(sfi);
+ pa_assert_se(sf_command(sf, SFC_GET_CURRENT_SF_INFO, &sfi, sizeof(sfi)) == 0);
+
+ pa_zero(fi);
+ fi.format = sfi.format;
+ if (sf_command(sf, SFC_GET_FORMAT_INFO, &fi, sizeof(fi)) == 0 && fi.name) {
+ char *t;
+
+ t = pa_utf8_filter(fi.name);
+ pa_proplist_sets(p, "media.format", t);
+ pa_xfree(t);
+ }
+}
+
+pa_sndfile_readf_t pa_sndfile_readf_function(const pa_sample_spec *ss) {
+ pa_assert(ss);
+
+ switch (ss->format) {
+ case PA_SAMPLE_S16NE:
+ return (pa_sndfile_readf_t) sf_readf_short;
+
+ case PA_SAMPLE_S32NE:
+ return (pa_sndfile_readf_t) sf_readf_int;
+
+ case PA_SAMPLE_FLOAT32NE:
+ return (pa_sndfile_readf_t) sf_readf_float;
+
+ case PA_SAMPLE_ULAW:
+ case PA_SAMPLE_ALAW:
+ return NULL;
+
+ default:
+ pa_assert_not_reached();
+ }
+}
+
+pa_sndfile_writef_t pa_sndfile_writef_function(const pa_sample_spec *ss) {
+ pa_assert(ss);
+
+ switch (ss->format) {
+ case PA_SAMPLE_S16NE:
+ return (pa_sndfile_writef_t) sf_writef_short;
+
+ case PA_SAMPLE_S32NE:
+ return (pa_sndfile_writef_t) sf_writef_int;
+
+ case PA_SAMPLE_FLOAT32NE:
+ return (pa_sndfile_writef_t) sf_writef_float;
+
+ case PA_SAMPLE_ULAW:
+ case PA_SAMPLE_ALAW:
+ return NULL;
+
+ default:
+ pa_assert_not_reached();
+ }
+}
+
+int pa_sndfile_format_from_string(const char *name) {
+ int i, count = 0;
+
+
+ if (!name[0])
+ return -1;
+
+ pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(int)) == 0);
+
+ /* First try to match via full type string */
+ for (i = 0; i < count; i++) {
+ SF_FORMAT_INFO fi;
+ pa_zero(fi);
+ fi.format = i;
+
+ pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
+
+ if (strcasecmp(name, fi.name) == 0)
+ return i;
+ }
+
+ /* Then, try to match via the full extension */
+ for (i = 0; i < count; i++) {
+ SF_FORMAT_INFO fi;
+ pa_zero(fi);
+ fi.format = i;
+
+ pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
+
+ if (strcasecmp(name, fi.extension) == 0)
+ return i;
+ }
+
+ /* Then, try to match via the start of the type string */
+ for (i = 0; i < count; i++) {
+ SF_FORMAT_INFO fi;
+ pa_zero(fi);
+ fi.format = i;
+
+ pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
+
+ if (strncasecmp(name, fi.extension, strlen(name)) == 0)
+ return i;
+ }
+
+ return -1;
+}
+
+void pa_sndfile_dump_formats(void) {
+ int i, count = 0;
+
+ pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR_COUNT, &count, sizeof(int)) == 0);
+
+ for (i = 0; i < count; i++) {
+ SF_FORMAT_INFO fi;
+ pa_zero(fi);
+ fi.format = i;
+
+ pa_assert_se(sf_command(NULL, SFC_GET_FORMAT_MAJOR, &fi, sizeof(fi)) == 0);
+ printf("%s\t%s\n", fi.extension, fi.name);
+ }
+}