mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-30 16:10:53 +00:00
5f93c115ff
They're now an enum, and the flag part of the name is all lowercase, but now the flag definitions and names list will never get out of sync.
312 lines
6.8 KiB
C
312 lines
6.8 KiB
C
/*
|
|
vorbis.c
|
|
|
|
Ogg Vorbis support
|
|
|
|
Copyright (C) 2001 Bill Currie <bill@taniwha.org>
|
|
|
|
Author: Bill Currie <bill@taniwha.org>
|
|
Date: 2002/6/14
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program 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 General Public License
|
|
along with this program; if not, write to:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_STRING_H
|
|
# include "string.h"
|
|
#endif
|
|
#ifdef HAVE_STRINGS_H
|
|
# include "strings.h"
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#define OV_EXCLUDE_STATIC_CALLBACKS
|
|
#include <vorbis/vorbisfile.h>
|
|
|
|
#include "QF/cvar.h"
|
|
#include "QF/quakefs.h"
|
|
#include "QF/sound.h"
|
|
#include "QF/sys.h"
|
|
|
|
#include "snd_internal.h"
|
|
|
|
#define FRAMES 1024
|
|
|
|
typedef struct {
|
|
float *data;
|
|
OggVorbis_File *vf;
|
|
} vorbis_file_t;
|
|
|
|
static size_t
|
|
vorbis_read_func (void *ptr, size_t size, size_t nmemb, void *datasource)
|
|
{
|
|
return Qread (datasource, ptr, size * nmemb);
|
|
}
|
|
|
|
static int
|
|
vorbis_seek_func (void *datasource, ogg_int64_t offset, int whence)
|
|
{
|
|
return Qseek (datasource, offset, whence);
|
|
}
|
|
|
|
static int
|
|
vorbis_close_func (void *datasource)
|
|
{
|
|
Qclose (datasource);
|
|
return 0;
|
|
}
|
|
|
|
static long
|
|
vorbis_tell_func (void *datasource)
|
|
{
|
|
return Qtell (datasource);
|
|
}
|
|
|
|
static ov_callbacks callbacks = {
|
|
vorbis_read_func,
|
|
vorbis_seek_func,
|
|
vorbis_close_func,
|
|
vorbis_tell_func,
|
|
};
|
|
|
|
static wavinfo_t
|
|
vorbis_get_info (OggVorbis_File *vf)
|
|
{
|
|
vorbis_info *vi;
|
|
int sample_start = -1, sample_count = 0;
|
|
int samples;
|
|
char **ptr;
|
|
wavinfo_t info;
|
|
|
|
vi = ov_info (vf, -1);
|
|
samples = ov_pcm_total (vf, -1);
|
|
|
|
for (ptr = ov_comment (vf, -1)->user_comments; *ptr; ptr++) {
|
|
Sys_MaskPrintf (SYS_dev, "%s\n", *ptr);
|
|
if (strncmp ("CUEPOINT=", *ptr, 9) == 0) {
|
|
sscanf (*ptr + 9, "%d %d", &sample_start, &sample_count);
|
|
}
|
|
}
|
|
|
|
if (sample_start != -1)
|
|
samples = sample_start + sample_count;
|
|
|
|
info.rate = vi->rate;
|
|
info.width = sizeof (float);
|
|
info.channels = vi->channels;
|
|
info.loopstart = sample_start;
|
|
info.frames = samples;
|
|
info.dataofs = 0;
|
|
info.datalen = samples * info.channels * info.width;
|
|
|
|
Sys_MaskPrintf (SYS_dev, "\nBitstream is %d channel, %dHz\n",
|
|
info.channels, info.rate);
|
|
Sys_MaskPrintf (SYS_dev, "\nDecoded length: %d samples (%d bytes)\n",
|
|
info.frames, info.width);
|
|
Sys_MaskPrintf (SYS_dev, "Encoded by: %s\n\n",
|
|
ov_comment (vf, -1)->vendor);
|
|
|
|
return info;
|
|
}
|
|
|
|
static int
|
|
vorbis_read (OggVorbis_File *vf, float *buf, int len, wavinfo_t *info)
|
|
{
|
|
unsigned i;
|
|
int j;
|
|
int count = 0;
|
|
int current_section;
|
|
float **vbuf;
|
|
|
|
while (len) {
|
|
int res = ov_read_float (vf, &vbuf, len, ¤t_section);
|
|
|
|
if (res > 0) {
|
|
for (i = 0; i < info->channels; i++)
|
|
for (j = 0; j < res; j++) {
|
|
buf[j * info->channels + i] = vbuf[i][j];
|
|
}
|
|
count += res;
|
|
len -= res;
|
|
buf += res * info->channels;
|
|
} else if (res < 0) {
|
|
Sys_Printf ("vorbis error %d\n", res);
|
|
return -1;
|
|
} else {
|
|
Sys_Printf ("unexpected eof\n");
|
|
break;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static sfxbuffer_t *
|
|
vorbis_load (OggVorbis_File *vf, sfxblock_t *block, cache_allocator_t allocator)
|
|
{
|
|
float *data;
|
|
sfxbuffer_t *sc = 0;
|
|
sfx_t *sfx = block->sfx;
|
|
wavinfo_t *info = &block->wavinfo;
|
|
|
|
data = malloc (info->datalen);
|
|
if (!data)
|
|
goto bail;
|
|
sc = SND_GetCache (info->frames, info->rate, info->channels,
|
|
block, allocator);
|
|
if (!sc)
|
|
goto bail;
|
|
sc->sfx = sfx;
|
|
if (vorbis_read (vf, data, info->frames, info) < 0)
|
|
goto bail;
|
|
SND_SetPaint (sc);
|
|
SND_SetupResampler (sc, 0);
|
|
SND_Resample (sc, data, info->frames);
|
|
sc->head = sc->length;
|
|
bail:
|
|
if (data)
|
|
free (data);
|
|
ov_clear (vf);
|
|
return sc;
|
|
}
|
|
|
|
static void
|
|
vorbis_callback_load (void *object, cache_allocator_t allocator)
|
|
{
|
|
QFile *file;
|
|
OggVorbis_File vf;
|
|
|
|
sfxblock_t *block = (sfxblock_t *) object;
|
|
|
|
file = QFS_FOpenFile (block->file);
|
|
if (!file)
|
|
return; //FIXME Sys_Error?
|
|
|
|
if (ov_open_callbacks (file, &vf, 0, 0, callbacks) < 0) {
|
|
Sys_Printf ("Input does not appear to be an Ogg bitstream.\n");
|
|
Qclose (file);
|
|
return; //FIXME Sys_Error?
|
|
}
|
|
vorbis_load (&vf, block, allocator);
|
|
}
|
|
|
|
static void
|
|
vorbis_cache (sfx_t *sfx, char *realname, OggVorbis_File *vf, wavinfo_t info)
|
|
{
|
|
ov_clear (vf);
|
|
SND_SFX_Cache (sfx, realname, info, vorbis_callback_load);
|
|
}
|
|
|
|
static long
|
|
vorbis_stream_read (void *file, float **buf)
|
|
{
|
|
sfxstream_t *stream = (sfxstream_t *) file;
|
|
vorbis_file_t *vf = (vorbis_file_t *) stream->file;
|
|
int res;
|
|
|
|
if (!vf->data)
|
|
vf->data = malloc (FRAMES * stream->wavinfo.channels * sizeof (float));
|
|
res = vorbis_read (vf->vf, vf->data, FRAMES, &stream->wavinfo);
|
|
if (res <= 0) {
|
|
stream->error = 1;
|
|
return 0;
|
|
}
|
|
*buf = vf->data;
|
|
return res;
|
|
}
|
|
|
|
static int
|
|
vorbis_stream_seek (sfxstream_t *stream, int pos)
|
|
{
|
|
vorbis_file_t *vf = (vorbis_file_t *) stream->file;
|
|
return ov_pcm_seek (vf->vf, pos);
|
|
}
|
|
|
|
static void
|
|
vorbis_stream_close (sfx_t *sfx)
|
|
{
|
|
sfxstream_t *stream = sfx->data.stream;
|
|
vorbis_file_t *vf = (vorbis_file_t *) stream->file;
|
|
|
|
if (vf->data)
|
|
free (vf->data);
|
|
ov_clear (vf->vf);
|
|
free (vf->vf);
|
|
free (vf);
|
|
SND_SFX_StreamClose (sfx);
|
|
}
|
|
|
|
static sfx_t *
|
|
vorbis_stream_open (sfx_t *sfx)
|
|
{
|
|
sfxstream_t *stream = sfx->data.stream;
|
|
QFile *file;
|
|
vorbis_file_t *f;
|
|
|
|
file = QFS_FOpenFile (stream->file);
|
|
if (!file)
|
|
return 0;
|
|
|
|
f = calloc (sizeof (vorbis_file_t), 1);
|
|
f->vf = malloc (sizeof (OggVorbis_File));
|
|
if (ov_open_callbacks (file, f->vf, 0, 0, callbacks) < 0) {
|
|
Sys_Printf ("Input does not appear to be an Ogg bitstream.\n");
|
|
Qclose (file);
|
|
free (f);
|
|
return 0;
|
|
}
|
|
|
|
return SND_SFX_StreamOpen (sfx, f, vorbis_stream_read, vorbis_stream_seek,
|
|
vorbis_stream_close);
|
|
}
|
|
|
|
static void
|
|
vorbis_stream (sfx_t *sfx, char *realname, OggVorbis_File *vf, wavinfo_t info)
|
|
{
|
|
ov_clear (vf);
|
|
SND_SFX_Stream (sfx, realname, info, vorbis_stream_open);
|
|
}
|
|
|
|
int
|
|
SND_LoadOgg (QFile *file, sfx_t *sfx, char *realname)
|
|
{
|
|
OggVorbis_File vf;
|
|
wavinfo_t info;
|
|
|
|
if (ov_open_callbacks (file, &vf, 0, 0, callbacks) < 0) {
|
|
Sys_Printf ("Input does not appear to be an Ogg bitstream.\n");
|
|
free (realname);
|
|
return -1;
|
|
}
|
|
info = vorbis_get_info (&vf);
|
|
if (info.channels < 1 || info.channels > 8) {
|
|
Sys_Printf ("unsupported number of channels");
|
|
return -1;
|
|
}
|
|
if (info.frames / info.rate < 3) {
|
|
Sys_MaskPrintf (SYS_dev, "cache %s\n", realname);
|
|
vorbis_cache (sfx, realname, &vf, info);
|
|
} else {
|
|
Sys_MaskPrintf (SYS_dev, "stream %s\n", realname);
|
|
vorbis_stream (sfx, realname, &vf, info);
|
|
}
|
|
return 0;
|
|
}
|