summaryrefslogtreecommitdiff
path: root/libmad/src/stream.c
diff options
context:
space:
mode:
Diffstat (limited to 'libmad/src/stream.c')
-rw-r--r--libmad/src/stream.c161
1 files changed, 0 insertions, 161 deletions
diff --git a/libmad/src/stream.c b/libmad/src/stream.c
deleted file mode 100644
index 8bb4d6a..0000000
--- a/libmad/src/stream.c
+++ /dev/null
@@ -1,161 +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.c,v 1.12 2004/02/05 09:02:39 rob Exp $
- */
-
-# ifdef HAVE_CONFIG_H
-# include "config.h"
-# endif
-
-# include "global.h"
-
-# include <stdlib.h>
-
-# include "bit.h"
-# include "stream.h"
-
-/*
- * NAME: stream->init()
- * DESCRIPTION: initialize stream struct
- */
-void mad_stream_init(struct mad_stream *stream)
-{
- stream->buffer = 0;
- stream->bufend = 0;
- stream->skiplen = 0;
-
- stream->sync = 0;
- stream->freerate = 0;
-
- stream->this_frame = 0;
- stream->next_frame = 0;
- mad_bit_init(&stream->ptr, 0);
-
- mad_bit_init(&stream->anc_ptr, 0);
- stream->anc_bitlen = 0;
-
- stream->main_data = 0;
- stream->md_len = 0;
-
- stream->options = 0;
- stream->error = MAD_ERROR_NONE;
-}
-
-/*
- * NAME: stream->finish()
- * DESCRIPTION: deallocate any dynamic memory associated with stream
- */
-void mad_stream_finish(struct mad_stream *stream)
-{
- if (stream->main_data) {
- free(stream->main_data);
- stream->main_data = 0;
- }
-
- mad_bit_finish(&stream->anc_ptr);
- mad_bit_finish(&stream->ptr);
-}
-
-/*
- * NAME: stream->buffer()
- * DESCRIPTION: set stream buffer pointers
- */
-void mad_stream_buffer(struct mad_stream *stream,
- unsigned char const *buffer, unsigned long length)
-{
- stream->buffer = buffer;
- stream->bufend = buffer + length;
-
- stream->this_frame = buffer;
- stream->next_frame = buffer;
-
- stream->sync = 1;
-
- mad_bit_init(&stream->ptr, buffer);
-}
-
-/*
- * NAME: stream->skip()
- * DESCRIPTION: arrange to skip bytes before the next frame
- */
-void mad_stream_skip(struct mad_stream *stream, unsigned long length)
-{
- stream->skiplen += length;
-}
-
-/*
- * NAME: stream->sync()
- * DESCRIPTION: locate the next stream sync word
- */
-int mad_stream_sync(struct mad_stream *stream)
-{
- register unsigned char const *ptr, *end;
-
- ptr = mad_bit_nextbyte(&stream->ptr);
- end = stream->bufend;
-
- while (ptr < end - 1 &&
- !(ptr[0] == 0xff && (ptr[1] & 0xe0) == 0xe0))
- ++ptr;
-
- if (end - ptr < MAD_BUFFER_GUARD)
- return -1;
-
- mad_bit_init(&stream->ptr, ptr);
-
- return 0;
-}
-
-/*
- * NAME: stream->errorstr()
- * DESCRIPTION: return a string description of the current error condition
- */
-char const *mad_stream_errorstr(struct mad_stream const *stream)
-{
- switch (stream->error) {
- case MAD_ERROR_NONE: return "no error";
-
- case MAD_ERROR_BUFLEN: return "input buffer too small (or EOF)";
- case MAD_ERROR_BUFPTR: return "invalid (null) buffer pointer";
-
- case MAD_ERROR_NOMEM: return "not enough memory";
-
- case MAD_ERROR_LOSTSYNC: return "lost synchronization";
- case MAD_ERROR_BADLAYER: return "reserved header layer value";
- case MAD_ERROR_BADBITRATE: return "forbidden bitrate value";
- case MAD_ERROR_BADSAMPLERATE: return "reserved sample frequency value";
- case MAD_ERROR_BADEMPHASIS: return "reserved emphasis value";
-
- case MAD_ERROR_BADCRC: return "CRC check failed";
- case MAD_ERROR_BADBITALLOC: return "forbidden bit allocation value";
- case MAD_ERROR_BADSCALEFACTOR: return "bad scalefactor index";
- case MAD_ERROR_BADMODE: return "bad bitrate/mode combination";
- case MAD_ERROR_BADFRAMELEN: return "bad frame length";
- case MAD_ERROR_BADBIGVALUES: return "bad big_values count";
- case MAD_ERROR_BADBLOCKTYPE: return "reserved block_type";
- case MAD_ERROR_BADSCFSI: return "bad scalefactor selection info";
- case MAD_ERROR_BADDATAPTR: return "bad main_data_begin pointer";
- case MAD_ERROR_BADPART3LEN: return "bad audio data length";
- case MAD_ERROR_BADHUFFTABLE: return "bad Huffman table select";
- case MAD_ERROR_BADHUFFDATA: return "Huffman data overrun";
- case MAD_ERROR_BADSTEREO: return "incompatible block_type for JS";
- }
-
- return 0;
-}