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/***
This file is part of PulseAudio.
Copyright 2004-2006 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 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 <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sndfile.h>
#include <pulse/sample.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include <pulsecore/core-error.h>
#include <pulsecore/core-util.h>
#include "sound-file.h"
#include "core-scache.h"
int pa_sound_file_load(
pa_mempool *pool,
const char *fname,
pa_sample_spec *ss,
pa_channel_map *map,
pa_memchunk *chunk) {
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;
void *ptr = NULL;
int fd;
pa_assert(fname);
pa_assert(ss);
pa_assert(chunk);
pa_memchunk_reset(chunk);
memset(&sfinfo, 0, sizeof(sfinfo));
if ((fd = open(fname, O_RDONLY
#ifdef O_NOCTTY
|O_NOCTTY
#endif
)) < 0) {
pa_log("Failed to open file %s: %s", fname, pa_cstrerror(errno));
goto finish;
}
#ifdef HAVE_POSIX_FADVISE
if (posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL) < 0) {
pa_log_warn("POSIX_FADV_SEQUENTIAL failed: %s", pa_cstrerror(errno));
goto finish;
} else
pa_log_debug("POSIX_FADV_SEQUENTIAL succeeded.");
#endif
if (!(sf = sf_open_fd(fd, SFM_READ, &sfinfo, 1))) {
pa_log("Failed to open file %s", fname);
pa_close(fd);
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("Unsupported sample format in file %s", fname);
goto finish;
}
if (map)
pa_channel_map_init_extend(map, ss->channels, PA_CHANNEL_MAP_DEFAULT);
if ((l = pa_frame_size(ss) * sfinfo.frames) > PA_SCACHE_ENTRY_SIZE_MAX) {
pa_log("File too large");
goto finish;
}
chunk->memblock = pa_memblock_new(pool, l);
chunk->index = 0;
chunk->length = l;
ptr = pa_memblock_acquire(chunk->memblock);
if ((readf_function && readf_function(sf, ptr, sfinfo.frames) != sfinfo.frames) ||
(!readf_function && sf_read_raw(sf, ptr, l) != (sf_count_t) l)) {
pa_log("Premature file end");
goto finish;
}
ret = 0;
finish:
if (sf)
sf_close(sf);
if (ptr)
pa_memblock_release(chunk->memblock);
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;
pa_assert(fname);
if (!(sf = sf_open(fname, SFM_READ, &sfinfo))) {
pa_log("Failed to open file %s", fname);
return -1;
}
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_sample_spec_valid(&ss)) {
pa_log("Unsupported sample format in file %s", fname);
return -1;
}
if ((pa_frame_size(&ss) * sfinfo.frames) > PA_SCACHE_ENTRY_SIZE_MAX) {
pa_log("File too large: %s", fname);
return 1;
}
return 0;
}
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