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Viewing changes to src/libFLAC/stream_encoder_framing.c

  • Committer: Bazaar Package Importer
  • Author(s): Matt Zimmerman
  • Date: 2005-01-08 15:08:22 UTC
  • mto: (8.1.1 lenny)
  • mto: This revision was merged to the branch mainline in revision 4.
  • Revision ID: james.westby@ubuntu.com-20050108150822-yvinilrafylazcyv
Tags: upstream-1.1.1
Import upstream version 1.1.1

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src/libFLAC/stream_encoder_framing.c
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/* libFLAC - Free Lossless Audio Codec library
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 * Copyright (C) 2000,2001,2002,2003  Josh Coalson
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Library General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Library General Public License for more details.
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 *
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 * You should have received a copy of the GNU Library General Public
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 * License along with this library; if not, write to the
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 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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 * Boston, MA  02111-1307, USA.
 
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 * Copyright (C) 2000,2001,2002,2003,2004  Josh Coalson
 
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 *
 
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 * Redistribution and use in source and binary forms, with or without
 
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 * modification, are permitted provided that the following conditions
 
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 * are met:
 
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 *
 
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 * - Redistributions of source code must retain the above copyright
 
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 * notice, this list of conditions and the following disclaimer.
 
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 *
 
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 * - Redistributions in binary form must reproduce the above copyright
 
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 * notice, this list of conditions and the following disclaimer in the
 
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 * documentation and/or other materials provided with the distribution.
 
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 *
 
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 * - Neither the name of the Xiph.org Foundation nor the names of its
 
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 * contributors may be used to endorse or promote products derived from
 
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 * this software without specific prior written permission.
 
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 *
 
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 
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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 
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 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
 
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 
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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 
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 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 
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 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <stdio.h>
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        return true;
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}
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FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__bool streamable_subset, FLAC__bool is_last_block, FLAC__BitBuffer *bb)
 
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FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__bool streamable_subset, FLAC__BitBuffer *bb)
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{
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        unsigned u, blocksize_hint, sample_rate_hint;
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                return false;
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        FLAC__ASSERT(header->blocksize > 0 && header->blocksize <= FLAC__MAX_BLOCK_SIZE);
 
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        /* when this assertion holds true, any legal blocksize can be expressed in the frame header */
 
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        FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535u);
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        blocksize_hint = 0;
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        switch(header->blocksize) {
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                case   192: u = 1; break;
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                case 16384: u = 14; break;
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                case 32768: u = 15; break;
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                default:
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                        if(streamable_subset || is_last_block) {
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                                if(header->blocksize <= 0x100)
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                                        blocksize_hint = u = 6;
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                                else
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                                        blocksize_hint = u = 7;
 
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                        if(header->blocksize <= 0x100)
 
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                                blocksize_hint = u = 6;
 
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                        else if(header->blocksize <= 0x10000)
 
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                                blocksize_hint = u = 7;
 
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                        else {
 
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                                FLAC__ASSERT(0);
 
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                                return false;
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                        }
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                        else
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                                u = 0;
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                        break;
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        }
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        if(!FLAC__bitbuffer_write_raw_uint32(bb, u, FLAC__FRAME_HEADER_BLOCK_SIZE_LEN))
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                case 48000: u = 10; break;
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                case 96000: u = 11; break;
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                default:
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                        if(streamable_subset) {
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                                if(header->sample_rate % 1000 == 0)
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                                        sample_rate_hint = u = 12;
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                                else if(header->sample_rate % 10 == 0)
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                                        sample_rate_hint = u = 14;
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                                else
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                                        sample_rate_hint = u = 13;
 
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                        if(header->sample_rate <= 255000 && header->sample_rate % 1000 == 0)
 
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                                sample_rate_hint = u = 12;
 
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                        else if(header->sample_rate % 10 == 0)
 
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                                sample_rate_hint = u = 14;
 
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                        else if(header->sample_rate <= 0xffff)
 
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                                sample_rate_hint = u = 13;
 
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                        else if(streamable_subset) {
 
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                                FLAC__ASSERT(0);
 
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                                return false;
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                        }
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                        else
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                                u = 0;