diff options
Diffstat (limited to 'src/libmad/stream.h')
| -rw-r--r-- | src/libmad/stream.h | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/src/libmad/stream.h b/src/libmad/stream.h index 8bff8b49d..e69de29bb 100644 --- a/src/libmad/stream.h +++ b/src/libmad/stream.h @@ -1,108 +0,0 @@ -/* - * libmad - MPEG audio decoder library - * Copyright (C) 2000-2004 Underbit Technologies, Inc. - * - * 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 - * - * $Id: stream.h,v 1.20 2004/02/05 09:02:39 rob Exp $ - */ - -# ifndef LIBMAD_STREAM_H -# define LIBMAD_STREAM_H - -# include "bit.h" - -# define MAD_BUFFER_GUARD 8 -# define MAD_BUFFER_MDLEN (511 + 2048 + MAD_BUFFER_GUARD) - -enum mad_error { - MAD_ERROR_NONE = 0x0000, /* no error */ - - MAD_ERROR_BUFLEN = 0x0001, /* input buffer too small (or EOF) */ - MAD_ERROR_BUFPTR = 0x0002, /* invalid (null) buffer pointer */ - - MAD_ERROR_NOMEM = 0x0031, /* not enough memory */ - - MAD_ERROR_LOSTSYNC = 0x0101, /* lost synchronization */ - MAD_ERROR_BADLAYER = 0x0102, /* reserved header layer value */ - MAD_ERROR_BADBITRATE = 0x0103, /* forbidden bitrate value */ - MAD_ERROR_BADSAMPLERATE = 0x0104, /* reserved sample frequency value */ - MAD_ERROR_BADEMPHASIS = 0x0105, /* reserved emphasis value */ - - MAD_ERROR_BADCRC = 0x0201, /* CRC check failed */ - MAD_ERROR_BADBITALLOC = 0x0211, /* forbidden bit allocation value */ - MAD_ERROR_BADSCALEFACTOR = 0x0221, /* bad scalefactor index */ - MAD_ERROR_BADMODE = 0x0222, /* bad bitrate/mode combination */ - MAD_ERROR_BADFRAMELEN = 0x0231, /* bad frame length */ - MAD_ERROR_BADBIGVALUES = 0x0232, /* bad big_values count */ - MAD_ERROR_BADBLOCKTYPE = 0x0233, /* reserved block_type */ - MAD_ERROR_BADSCFSI = 0x0234, /* bad scalefactor selection info */ - MAD_ERROR_BADDATAPTR = 0x0235, /* bad main_data_begin pointer */ - MAD_ERROR_BADPART3LEN = 0x0236, /* bad audio data length */ - MAD_ERROR_BADHUFFTABLE = 0x0237, /* bad Huffman table select */ - MAD_ERROR_BADHUFFDATA = 0x0238, /* Huffman data overrun */ - MAD_ERROR_BADSTEREO = 0x0239 /* incompatible block_type for JS */ -}; - -# define MAD_RECOVERABLE(error) ((error) & 0xff00) - -struct mad_stream { - unsigned char const *buffer; /* input bitstream buffer */ - unsigned char const *bufend; /* end of buffer */ - unsigned long skiplen; /* bytes to skip before next frame */ - - int sync; /* stream sync found */ - unsigned long freerate; /* free bitrate (fixed) */ - - unsigned char const *this_frame; /* start of current frame */ - unsigned char const *next_frame; /* start of next frame */ - struct mad_bitptr ptr; /* current processing bit pointer */ - - struct mad_bitptr anc_ptr; /* ancillary bits pointer */ - unsigned int anc_bitlen; /* number of ancillary bits */ - - unsigned char (*main_data)[MAD_BUFFER_MDLEN]; - /* Layer III main_data() */ - unsigned int md_len; /* bytes in main_data */ - - int options; /* decoding options (see below) */ - enum mad_error error; /* error code (see above) */ -}; - -enum { - MAD_OPTION_IGNORECRC = 0x0001, /* ignore CRC errors */ - MAD_OPTION_HALFSAMPLERATE = 0x0002 /* generate PCM at 1/2 sample rate */ -# if 0 /* not yet implemented */ - MAD_OPTION_LEFTCHANNEL = 0x0010, /* decode left channel only */ - MAD_OPTION_RIGHTCHANNEL = 0x0020, /* decode right channel only */ - MAD_OPTION_SINGLECHANNEL = 0x0030 /* combine channels */ -# endif -}; - -void mad_stream_init(struct mad_stream *); -void mad_stream_finish(struct mad_stream *); - -# define mad_stream_options(stream, opts) \ - ((void) ((stream)->options = (opts))) - -void mad_stream_buffer(struct mad_stream *, - unsigned char const *, unsigned long); -void mad_stream_skip(struct mad_stream *, unsigned long); - -int mad_stream_sync(struct mad_stream *); - -char const *mad_stream_errorstr(struct mad_stream const *); - -# endif |