mirror of
https://github.com/id-Software/Wolf3D-iOS.git
synced 2026-03-20 08:59:51 +01:00
Source release of Wolfenstein 3D Classic Platinum for iOS, 2.1
This commit is contained in:
Travis Bradshaw
302
wolf3d/wolfextractor/vorbisenc_inter.c
Normal file
302
wolf3d/wolfextractor/vorbisenc_inter.c
Normal file
@@ -0,0 +1,302 @@
|
||||
/*
|
||||
|
||||
Copyright (C) 2005 Michael Liebscher
|
||||
Copyright 2000-2002, Michael Smith <msmith@xiph.org>
|
||||
(c) Kenneth Arnold <kcarnold@yahoo.com>
|
||||
(c) Monty <monty@xiph.org>
|
||||
|
||||
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.
|
||||
|
||||
*/
|
||||
|
||||
/*
|
||||
* vorbisenc_inter.c: Simple Ogg Vorbis interface.
|
||||
*
|
||||
* Author: Michael Liebscher <johnnycanuck@users.sourceforge.net>
|
||||
* Date: 2005
|
||||
*
|
||||
* Acknowledgement:
|
||||
* Portions from oggenc, Copyright 2000-2002, Michael Smith <msmith@xiph.org>
|
||||
* Vorbize, (c) Kenneth Arnold <kcarnold@yahoo.com>
|
||||
* and libvorbis examples, (c) Monty <monty@xiph.org>
|
||||
*
|
||||
*/
|
||||
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <vorbis/vorbisenc.h>
|
||||
|
||||
#include "../../common/arch.h"
|
||||
#include "../../common/common_utils.h"
|
||||
|
||||
#define READSIZE 1024
|
||||
|
||||
|
||||
PRIVATE W32 channels;
|
||||
PRIVATE W32 samplesize;
|
||||
|
||||
PRIVATE W8 *ptrCurrent;
|
||||
PRIVATE W8 *ptrEnd;
|
||||
|
||||
long read_samples( float **buffer, int samples )
|
||||
{
|
||||
int sampbyte = samplesize / 8;
|
||||
SW8 *buf;
|
||||
long bytes_read;
|
||||
int i,j;
|
||||
long realsamples;
|
||||
|
||||
buf = ptrCurrent;
|
||||
|
||||
if( (samples * sampbyte * channels) > (ptrEnd - ptrCurrent) )
|
||||
{
|
||||
bytes_read = ptrEnd - ptrCurrent;
|
||||
ptrCurrent = ptrEnd;
|
||||
|
||||
if( bytes_read == 0 )
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
bytes_read = samples * sampbyte * channels;
|
||||
ptrCurrent += samples * sampbyte * channels;
|
||||
}
|
||||
|
||||
|
||||
|
||||
realsamples = bytes_read / (sampbyte * channels);
|
||||
|
||||
|
||||
for( i = 0 ; i < realsamples ; ++i )
|
||||
{
|
||||
for( j = 0 ; j < channels ; ++j )
|
||||
{
|
||||
buffer[j][i] = ((buf[ i * 2 * channels + 2 * j + 1 ] << 8) |
|
||||
(buf[ i * 2 * channels + 2 * j ] & 0xFF)) / 32768.0f;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return realsamples;
|
||||
}
|
||||
|
||||
int vorbis_encode( const char *filename, void *data, W32 size, W32 in_channels, W32 in_samplesize,
|
||||
W32 rate, W32 quality, W32 max_bitrate, W32 min_bitrate )
|
||||
{
|
||||
FILE *fp;
|
||||
ogg_stream_state os;
|
||||
ogg_page og;
|
||||
ogg_packet op;
|
||||
|
||||
vorbis_dsp_state vd;
|
||||
vorbis_block vb;
|
||||
vorbis_info vi;
|
||||
|
||||
ogg_packet header_main;
|
||||
ogg_packet header_comments;
|
||||
ogg_packet header_codebooks;
|
||||
int result;
|
||||
unsigned int serialno = 0;
|
||||
|
||||
vorbis_comment comments;
|
||||
|
||||
int ret = 0;
|
||||
int eos;
|
||||
W32 samplesdone = 0;
|
||||
W32 packetsdone = 0;
|
||||
W32 bytes_written = 0;
|
||||
|
||||
|
||||
|
||||
fp = fopen( filename, "wb" );
|
||||
if( fp == NULL )
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
memset( &comments, 0, sizeof( comments ) );
|
||||
|
||||
channels = in_channels;
|
||||
samplesize = in_samplesize;
|
||||
ptrCurrent = (PW8)data;
|
||||
ptrEnd = (PW8)data + size;
|
||||
|
||||
|
||||
vorbis_info_init( &vi );
|
||||
|
||||
if( vorbis_encode_setup_vbr( &vi, channels, rate, quality ) )
|
||||
{
|
||||
fprintf( stderr, "Mode initialisation failed: invalid parameters for quality\n" );
|
||||
vorbis_info_clear( &vi );
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* do we have optional hard quality restrictions? */
|
||||
if( max_bitrate > 0 || min_bitrate > 0 )
|
||||
{
|
||||
struct ovectl_ratemanage_arg ai;
|
||||
|
||||
vorbis_encode_ctl( &vi, OV_ECTL_RATEMANAGE_GET, &ai );
|
||||
|
||||
ai.bitrate_hard_min = min_bitrate;
|
||||
ai.bitrate_hard_max = max_bitrate;
|
||||
ai.management_active = 1;
|
||||
|
||||
vorbis_encode_ctl( &vi, OV_ECTL_RATEMANAGE_SET, &ai );
|
||||
}
|
||||
|
||||
/* Turn off management entirely (if it was turned on). */
|
||||
vorbis_encode_ctl( &vi, OV_ECTL_RATEMANAGE_SET, NULL );
|
||||
|
||||
|
||||
vorbis_encode_setup_init( &vi );
|
||||
|
||||
vorbis_analysis_init( &vd, &vi );
|
||||
vorbis_block_init( &vd, &vb );
|
||||
|
||||
ogg_stream_init( &os, serialno );
|
||||
|
||||
/* Now, build the three header packets and send through to the stream
|
||||
output stage (but defer actual file output until the main encode loop) */
|
||||
|
||||
|
||||
/* Build the packets */
|
||||
ret = vorbis_analysis_headerout( &vd, &comments,
|
||||
&header_main, &header_comments, &header_codebooks );
|
||||
|
||||
/* And stream them out */
|
||||
ogg_stream_packetin( &os, &header_main );
|
||||
ogg_stream_packetin( &os, &header_comments );
|
||||
ogg_stream_packetin( &os, &header_codebooks );
|
||||
|
||||
while( (result = ogg_stream_flush( &os, &og )) )
|
||||
{
|
||||
if( ! result )
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
ret = fwrite( og.header, 1, og.header_len, fp );
|
||||
ret += fwrite( og.body, 1, og.body_len, fp );
|
||||
|
||||
if(ret != og.header_len + og.body_len)
|
||||
{
|
||||
printf( "Failed writing header to output stream\n") ;
|
||||
ret = 1;
|
||||
|
||||
goto cleanup; /* Bail and try to clean up stuff */
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
eos = 0;
|
||||
|
||||
/* Main encode loop - continue until end of file */
|
||||
while( ! eos )
|
||||
{
|
||||
float **buffer = vorbis_analysis_buffer( &vd, READSIZE );
|
||||
long samples_read = read_samples( buffer, READSIZE );
|
||||
|
||||
if( samples_read == 0 )
|
||||
{
|
||||
/* Tell the library that we wrote 0 bytes - signalling the end */
|
||||
vorbis_analysis_wrote( &vd, 0 );
|
||||
}
|
||||
else
|
||||
{
|
||||
samplesdone += samples_read;
|
||||
|
||||
/* Call progress update every 40 pages */
|
||||
if( packetsdone >= 40 )
|
||||
{
|
||||
packetsdone = 0;
|
||||
|
||||
// progress bar here
|
||||
}
|
||||
|
||||
/* Tell the library how many samples (per channel) we wrote
|
||||
into the supplied buffer */
|
||||
vorbis_analysis_wrote( &vd, samples_read );
|
||||
}
|
||||
|
||||
/* While we can get enough data from the library to analyse, one
|
||||
block at a time... */
|
||||
while( vorbis_analysis_blockout( &vd, &vb ) == 1 )
|
||||
{
|
||||
|
||||
/* Do the main analysis, creating a packet */
|
||||
vorbis_analysis( &vb, NULL );
|
||||
vorbis_bitrate_addblock( &vb );
|
||||
|
||||
while( vorbis_bitrate_flushpacket( &vd, &op ) )
|
||||
{
|
||||
/* Add packet to bitstream */
|
||||
ogg_stream_packetin( &os, &op );
|
||||
packetsdone++;
|
||||
|
||||
/* If we've gone over a page boundary, we can do actual output,
|
||||
so do so (for however many pages are available) */
|
||||
|
||||
while( ! eos )
|
||||
{
|
||||
int result = ogg_stream_pageout( &os, &og );
|
||||
if( ! result )
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
ret = fwrite( og.header, 1, og.header_len, fp );
|
||||
ret += fwrite( og.body, 1, og.body_len, fp );
|
||||
|
||||
if(ret != og.header_len + og.body_len)
|
||||
{
|
||||
printf( "Failed writing data to output stream\n" );
|
||||
ret = 1;
|
||||
|
||||
goto cleanup; /* Bail */
|
||||
}
|
||||
else
|
||||
{
|
||||
bytes_written += ret;
|
||||
}
|
||||
|
||||
if( ogg_page_eos( &og ) )
|
||||
{
|
||||
eos = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
cleanup:
|
||||
|
||||
fclose( fp );
|
||||
|
||||
ogg_stream_clear( &os );
|
||||
|
||||
vorbis_block_clear( &vb );
|
||||
vorbis_dsp_clear( &vd );
|
||||
vorbis_info_clear( &vi );
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user