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-rw-r--r--src/pulsecore/sound-file.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/src/pulsecore/sound-file.c b/src/pulsecore/sound-file.c
new file mode 100644
index 00000000..d11d4b9d
--- /dev/null
+++ b/src/pulsecore/sound-file.c
@@ -0,0 +1,163 @@
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ 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 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 <assert.h>
+
+#include <sndfile.h>
+
+#include <pulse/sample.h>
+#include <pulsecore/log.h>
+
+#include "sound-file.h"
+#include "core-scache.h"
+
+int pa_sound_file_load(const char *fname, pa_sample_spec *ss, pa_channel_map *map, pa_memchunk *chunk, pa_memblock_stat *s) {
+ SNDFILE*sf = NULL;
+ SF_INFO sfinfo;
+ int ret = -1;
+ size_t l;
+ sf_count_t (*readf_function)(SNDFILE *sndfile, void *ptr, sf_count_t frames) = NULL;
+ assert(fname && ss && chunk);
+
+ chunk->memblock = NULL;
+ chunk->index = chunk->length = 0;
+
+ memset(&sfinfo, 0, sizeof(sfinfo));
+
+ if (!(sf = sf_open(fname, SFM_READ, &sfinfo))) {
+ pa_log(__FILE__": Failed to open file %s", fname);
+ goto finish;
+ }
+
+ switch (sfinfo.format & SF_FORMAT_SUBMASK) {
+ case SF_FORMAT_PCM_16:
+ case SF_FORMAT_PCM_U8:
+ case SF_FORMAT_PCM_S8:
+ ss->format = PA_SAMPLE_S16NE;
+ readf_function = (sf_count_t (*)(SNDFILE *sndfile, void *ptr, sf_count_t frames)) sf_readf_short;
+ 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;
+ readf_function = (sf_count_t (*)(SNDFILE *sndfile, void *ptr, sf_count_t frames)) sf_readf_float;
+ break;
+ }
+
+ ss->rate = sfinfo.samplerate;
+ ss->channels = sfinfo.channels;
+
+ if (!pa_sample_spec_valid(ss)) {
+ pa_log(__FILE__": Unsupported sample format in file %s", fname);
+ goto finish;
+ }
+
+ if (map)
+ pa_channel_map_init_auto(map, ss->channels, PA_CHANNEL_MAP_DEFAULT);
+
+ if ((l = pa_frame_size(ss)*sfinfo.frames) > PA_SCACHE_ENTRY_SIZE_MAX) {
+ pa_log(__FILE__": File too large");
+ goto finish;
+ }
+
+ chunk->memblock = pa_memblock_new(l, s);
+ assert(chunk->memblock);
+ chunk->index = 0;
+ chunk->length = l;
+
+ if ((readf_function && readf_function(sf, chunk->memblock->data, sfinfo.frames) != sfinfo.frames) ||
+ (!readf_function && sf_read_raw(sf, chunk->memblock->data, l) != l)) {
+ pa_log(__FILE__": Premature file end");
+ goto finish;
+ }
+
+ ret = 0;
+
+finish:
+
+ if (sf)
+ sf_close(sf);
+
+ if (ret != 0 && chunk->memblock)
+ pa_memblock_unref(chunk->memblock);
+
+ return ret;
+
+}
+
+int pa_sound_file_too_big_to_cache(const char *fname) {
+ SNDFILE*sf = NULL;
+ SF_INFO sfinfo;
+ pa_sample_spec ss;
+
+ if (!(sf = sf_open(fname, SFM_READ, &sfinfo))) {
+ pa_log(__FILE__": Failed to open file %s", fname);
+ return 0;
+ }
+
+ sf_close(sf);
+
+ switch (sfinfo.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_ULAW:
+ ss.format = PA_SAMPLE_ULAW;
+ break;
+
+ case SF_FORMAT_ALAW:
+ ss.format = PA_SAMPLE_ALAW;
+ break;
+
+ case SF_FORMAT_DOUBLE:
+ case SF_FORMAT_FLOAT:
+ default:
+ ss.format = PA_SAMPLE_FLOAT32NE;
+ break;
+ }
+
+ ss.rate = sfinfo.samplerate;
+ ss.channels = sfinfo.channels;
+
+ if ((pa_frame_size(&ss) * sfinfo.frames) > PA_SCACHE_ENTRY_SIZE_MAX) {
+ pa_log(__FILE__": File too large %s", fname);
+ return 1;
+ }
+
+ return 0;
+}