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code.delx.au - pulseaudio/blob - src/pulsecore/sound-file.c
4 This file is part of PulseAudio.
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/sample.h>
32 #include <pulsecore/log.h>
34 #include "sound-file.h"
35 #include "core-scache.h"
37 int pa_sound_file_load(pa_mempool
*pool
, const char *fname
, pa_sample_spec
*ss
, pa_channel_map
*map
, pa_memchunk
*chunk
) {
42 sf_count_t (*readf_function
)(SNDFILE
*sndfile
, void *ptr
, sf_count_t frames
) = NULL
;
43 assert(fname
&& ss
&& chunk
);
45 chunk
->memblock
= NULL
;
46 chunk
->index
= chunk
->length
= 0;
48 memset(&sfinfo
, 0, sizeof(sfinfo
));
50 if (!(sf
= sf_open(fname
, SFM_READ
, &sfinfo
))) {
51 pa_log("Failed to open file %s", fname
);
55 switch (sfinfo
.format
& SF_FORMAT_SUBMASK
) {
56 case SF_FORMAT_PCM_16
:
57 case SF_FORMAT_PCM_U8
:
58 case SF_FORMAT_PCM_S8
:
59 ss
->format
= PA_SAMPLE_S16NE
;
60 readf_function
= (sf_count_t (*)(SNDFILE
*sndfile
, void *ptr
, sf_count_t frames
)) sf_readf_short
;
64 ss
->format
= PA_SAMPLE_ULAW
;
68 ss
->format
= PA_SAMPLE_ALAW
;
72 case SF_FORMAT_DOUBLE
:
74 ss
->format
= PA_SAMPLE_FLOAT32NE
;
75 readf_function
= (sf_count_t (*)(SNDFILE
*sndfile
, void *ptr
, sf_count_t frames
)) sf_readf_float
;
79 ss
->rate
= sfinfo
.samplerate
;
80 ss
->channels
= sfinfo
.channels
;
82 if (!pa_sample_spec_valid(ss
)) {
83 pa_log("Unsupported sample format in file %s", fname
);
88 pa_channel_map_init_auto(map
, ss
->channels
, PA_CHANNEL_MAP_DEFAULT
);
90 if ((l
= pa_frame_size(ss
)*sfinfo
.frames
) > PA_SCACHE_ENTRY_SIZE_MAX
) {
91 pa_log("File too large");
95 chunk
->memblock
= pa_memblock_new(pool
, l
);
96 assert(chunk
->memblock
);
100 if ((readf_function
&& readf_function(sf
, chunk
->memblock
->data
, sfinfo
.frames
) != sfinfo
.frames
) ||
101 (!readf_function
&& sf_read_raw(sf
, chunk
->memblock
->data
, l
) != l
)) {
102 pa_log("Premature file end");
113 if (ret
!= 0 && chunk
->memblock
)
114 pa_memblock_unref(chunk
->memblock
);
120 int pa_sound_file_too_big_to_cache(const char *fname
) {
125 if (!(sf
= sf_open(fname
, SFM_READ
, &sfinfo
))) {
126 pa_log("Failed to open file %s", fname
);
132 switch (sfinfo
.format
& SF_FORMAT_SUBMASK
) {
133 case SF_FORMAT_PCM_16
:
134 case SF_FORMAT_PCM_U8
:
135 case SF_FORMAT_PCM_S8
:
136 ss
.format
= PA_SAMPLE_S16NE
;
140 ss
.format
= PA_SAMPLE_ULAW
;
144 ss
.format
= PA_SAMPLE_ALAW
;
147 case SF_FORMAT_DOUBLE
:
148 case SF_FORMAT_FLOAT
:
150 ss
.format
= PA_SAMPLE_FLOAT32NE
;
154 ss
.rate
= sfinfo
.samplerate
;
155 ss
.channels
= sfinfo
.channels
;
157 if ((pa_frame_size(&ss
) * sfinfo
.frames
) > PA_SCACHE_ENTRY_SIZE_MAX
) {
158 pa_log("File too large %s", fname
);