diff options
Diffstat (limited to 'src/inputPlugins/_ogg_common.c')
| -rw-r--r-- | src/inputPlugins/_ogg_common.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/inputPlugins/_ogg_common.c b/src/inputPlugins/_ogg_common.c new file mode 100644 index 000000000..fb0bb19e0 --- /dev/null +++ b/src/inputPlugins/_ogg_common.c @@ -0,0 +1,65 @@ +/* the Music Player Daemon (MPD) + * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu) + * This project's homepage is: http://www.musicpd.org + * + * Common functions used for Ogg data streams (Ogg-Vorbis and OggFLAC) + * (c) 2005 by Eric Wong <normalperson@yhbt.net> + * + * 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 the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "../inputPlugin.h" + +#if defined(HAVE_OGGFLAC) || defined(HAVE_OGGVORBIS) + +#include "../utils.h" +#include "_ogg_common.h" + +#include <string.h> + +ogg_stream_type ogg_stream_type_detect(InputStream * inStream) +{ + /* oggflac detection based on code in ogg123 and this post + * http://lists.xiph.org/pipermail/flac/2004-December/000393.html + * ogg123 trunk still doesn't have this patch as of June 2005 */ + unsigned char buf[41]; + size_t r, to_read = 41; + + seekInputStream(inStream, 0, SEEK_SET); + + while (to_read) { + r = readFromInputStream(inStream, buf, 1, to_read); + if (r < 0) + break; + to_read -= r; + if (!r && !inputStreamAtEOF(inStream)) + my_usleep(10000); + else + break; + } + + seekInputStream(inStream, 0, SEEK_SET); + + if (r >= 32 && memcmp(buf, "OggS", 4) == 0 && ( + (memcmp(buf+29, "FLAC", 4) == 0 + && memcmp(buf+37, "fLaC", 4) == 0) + || (memcmp(buf+28, "FLAC", 4) == 0) + || (memcmp(buf+28, "fLaC", 4) == 0))) { + return FLAC; + } + return VORBIS; +} + +#endif /* defined(HAVE_OGGFLAC || defined(HAVE_OGGVORBIS) */ + |