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Addressing all the FIXMEs in the code

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Includes better error handling in fft/mdct init
This commit is contained in:
Jean-Marc Valin 2011-05-16 14:10:04 -04:00
parent 21b1134aa2
commit 27169ca9d0
6 changed files with 16 additions and 139 deletions
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2
libcelt/celt.c
View file

@ -671,7 +671,7 @@ static int tf_analysis(const CELTMode *m, celt_word16 *bandLogE, celt_word16 *ol
*tf_sum += metric[i];
}
/*printf("\n");*/
/* FIXME: Figure out how to set this */
/* TODO: Detect the extreme transients that require tf_select = 1 */
tf_select = 0;
cost0 = 0;

124
libcelt/header.c
View file

@ -1,124 +0,0 @@
/* Copyright (c) 2007 CSIRO
Copyright (c) 2007-2009 Xiph.Org Foundation
Written by Jean-Marc Valin */
/*
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "celt_header.h"
#include "os_support.h"
#include "modes.h"
static celt_uint32
_le_32 (celt_uint32 i)
{
celt_uint32 ret=i;
#if !defined(__LITTLE_ENDIAN__) && ( defined(WORDS_BIGENDIAN) || defined(__BIG_ENDIAN__) )
ret = (i>>24);
ret += (i>>8) & 0x0000ff00;
ret += (i<<8) & 0x00ff0000;
ret += (i<<24);
#endif
return ret;
}
int celt_header_init(CELTHeader *header, const CELTMode *m, int frame_size, int channels)
{
if (header==NULL)
return CELT_BAD_ARG;
CELT_COPY(header->codec_id, "CELT ", 8);
CELT_COPY(header->codec_version, "experimental ", 20);
/* FIXME: Set that to zero when we freeze */
header->version_id = 0x80001000;
header->header_size = 56;
header->sample_rate = m->Fs;
header->nb_channels = channels;
/*FIXME: This won't work for variable frame size */
header->frame_size = frame_size;
header->overlap = m->overlap;
header->bytes_per_packet = -1;
header->extra_headers = 0;
return CELT_OK;
}
int celt_header_to_packet(const CELTHeader *header, unsigned char *packet, celt_uint32 size)
{
celt_int32 * h;
if ((size < 56) || (header==NULL) || (packet==NULL))
return CELT_BAD_ARG; /* FAIL */
CELT_MEMSET(packet, 0, sizeof(*header));
/* FIXME: Do it in an alignment-safe manner */
/* Copy ident and version */
CELT_COPY(packet, (unsigned char*)header, 28);
/* Copy the int32 fields */
h = (celt_int32*)(packet+28);
*h++ = _le_32 (header->version_id);
*h++ = _le_32 (header->header_size);
*h++ = _le_32 (header->sample_rate);
*h++ = _le_32 (header->nb_channels);
*h++ = _le_32 (header->frame_size);
*h++ = _le_32 (header->overlap);
*h++ = _le_32 (header->bytes_per_packet);
*h = _le_32 (header->extra_headers);
return sizeof(*header);
}
int celt_header_from_packet(const unsigned char *packet, celt_uint32 size, CELTHeader *header)
{
celt_int32 * h;
if ((size < 56) || (header==NULL) || (packet==NULL))
return CELT_BAD_ARG; /* FAIL */
CELT_MEMSET((unsigned char*)header, 0, sizeof(*header));
/* FIXME: Do it in an alignment-safe manner */
/* Copy ident and version */
CELT_COPY((unsigned char*)header, packet, 28);
/* Copy the int32 fields */
h = (celt_int32*)(packet+28);
header->version_id = _le_32(*h++);
header->header_size = _le_32(*h++);
header->sample_rate = _le_32(*h++);
header->nb_channels = _le_32(*h++);
header->frame_size = _le_32(*h++);
header->overlap = _le_32(*h++);
header->bytes_per_packet = _le_32(*h++);
header->extra_headers = _le_32(*h);
return sizeof(*header);
}

10
libcelt/kiss_fft.c
View file

@ -616,9 +616,8 @@ kiss_fft_state *kiss_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, co
st->shift = 0;
while (nfft<<st->shift != base->nfft && st->shift < 32)
st->shift++;
/* FIXME: Report error and do proper cleanup */
if (st->shift>=32)
return NULL;
goto fail;
} else {
st->twiddles = twiddles = (kiss_twiddle_cpx*)KISS_FFT_MALLOC(sizeof(kiss_twiddle_cpx)*nfft);
compute_twiddles(twiddles, nfft);
@ -627,14 +626,19 @@ kiss_fft_state *kiss_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, co
if (!kf_factor(nfft,st->factors))
{
kiss_fft_free(st);
return NULL;
goto fail;
}
/* bitrev */
st->bitrev = bitrev = (celt_int16*)KISS_FFT_MALLOC(sizeof(celt_int16)*nfft);
if (st->bitrev==NULL)
goto fail;
compute_bitrev_table(0, bitrev, 1,1, st->factors,st);
}
return st;
fail:
kiss_fft_free(st);
return NULL;
}
kiss_fft_state *kiss_fft_alloc(int nfft,void * mem,size_t * lenmem )

7
libcelt/mdct.c
View file

@ -59,7 +59,7 @@
#ifdef CUSTOM_MODES
void clt_mdct_init(mdct_lookup *l,int N, int maxshift)
int clt_mdct_init(mdct_lookup *l,int N, int maxshift)
{
int i;
int N4, N2;
@ -76,12 +76,12 @@ void clt_mdct_init(mdct_lookup *l,int N, int maxshift)
l->kfft[i] = kiss_fft_alloc_twiddles(N>>2>>i, 0, 0, l->kfft[0]);
#ifndef ENABLE_TI_DSPLIB55
if (l->kfft[i]==NULL)
return;
return 0;
#endif
}
l->trig = trig = (kiss_twiddle_scalar*)celt_alloc((N4+1)*sizeof(kiss_twiddle_scalar));
if (l->trig==NULL)
return;
return 0;
/* We have enough points that sine isn't necessary */
#if defined(FIXED_POINT)
for (i=0;i<=N4;i++)
@ -90,6 +90,7 @@ void clt_mdct_init(mdct_lookup *l,int N, int maxshift)
for (i=0;i<=N4;i++)
trig[i] = (kiss_twiddle_scalar)cos(2*M_PI*i/N);
#endif
return 1;
}
void clt_mdct_clear(mdct_lookup *l)

2
libcelt/mdct.h
View file

@ -52,7 +52,7 @@ typedef struct {
const kiss_twiddle_scalar * restrict trig;
} mdct_lookup;
void clt_mdct_init(mdct_lookup *l,int N, int maxshift);
int clt_mdct_init(mdct_lookup *l,int N, int maxshift);
void clt_mdct_clear(mdct_lookup *l);
/** Compute a forward MDCT and scale by 4/N */

8
libcelt/modes.c
View file

@ -381,12 +381,8 @@ CELTMode *celt_mode_create(celt_int32 Fs, int frame_size, int *error)
compute_pulse_cache(mode, mode->maxLM);
clt_mdct_init(&mode->mdct, 2*mode->shortMdctSize*mode->nbShortMdcts, mode->maxLM);
if ((mode->mdct.trig==NULL)
#ifndef ENABLE_TI_DSPLIB55
|| (mode->mdct.kfft==NULL)
#endif
)
if (clt_mdct_init(&mode->mdct, 2*mode->shortMdctSize*mode->nbShortMdcts,
mode->maxLM) == 0)
goto failure;
if (error)