summaryrefslogtreecommitdiff
path: root/drivers/speex/speex_header.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/speex/speex_header.c')
-rw-r--r--drivers/speex/speex_header.c200
1 files changed, 0 insertions, 200 deletions
diff --git a/drivers/speex/speex_header.c b/drivers/speex/speex_header.c
deleted file mode 100644
index 2792623983..0000000000
--- a/drivers/speex/speex_header.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/* Copyright (C) 2002 Jean-Marc Valin
- File: speex_header.c
- Describes the Speex header
-
- 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.
-
- - Neither the name of the Xiph.org Foundation nor the names of its
- contributors may be used to endorse or promote products derived from
- this software without specific prior written permission.
-
- 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.
-
-*/
-
-
-#include "config.h"
-
-
-#include "arch.h"
-#include <speex/speex_header.h>
-#include <speex/speex.h>
-#include "os_support.h"
-
-#ifndef NULL
-#define NULL 0
-#endif
-
-/** Convert little endian */
-static SPEEX_INLINE spx_int32_t le_int(spx_int32_t i)
-{
-#if !defined(__LITTLE_ENDIAN__) && ( defined(WORDS_BIGENDIAN) || defined(__BIG_ENDIAN__) /* || defined(BIG_ENDIAN_ENABLED) */ )
- spx_uint32_t ui, ret;
- ui = i;
- ret = ui>>24;
- ret |= (ui>>8)&0x0000ff00;
- ret |= (ui<<8)&0x00ff0000;
- ret |= (ui<<24);
- return ret;
-#else
- return i;
-#endif
-}
-
-#define ENDIAN_SWITCH(x) {x=le_int(x);}
-
-
-/*
-typedef struct SpeexHeader {
- char speex_string[8];
- char speex_version[SPEEX_HEADER_VERSION_LENGTH];
- int speex_version_id;
- int header_size;
- int rate;
- int mode;
- int mode_bitstream_version;
- int nb_channels;
- int bitrate;
- int frame_size;
- int vbr;
- int frames_per_packet;
- int extra_headers;
- int reserved1;
- int reserved2;
-} SpeexHeader;
-*/
-
-EXPORT void speex_init_header(SpeexHeader *header, int rate, int nb_channels, const SpeexMode *m)
-{
- int i;
- const char *h="Speex ";
- /*
- strncpy(header->speex_string, "Speex ", 8);
- strncpy(header->speex_version, SPEEX_VERSION, SPEEX_HEADER_VERSION_LENGTH-1);
- header->speex_version[SPEEX_HEADER_VERSION_LENGTH-1]=0;
- */
- for (i=0;i<8;i++)
- header->speex_string[i]=h[i];
- for (i=0;i<SPEEX_HEADER_VERSION_LENGTH-1 && SPEEX_VERSION[i];i++)
- header->speex_version[i]=SPEEX_VERSION[i];
- for (;i<SPEEX_HEADER_VERSION_LENGTH;i++)
- header->speex_version[i]=0;
-
- header->speex_version_id = 1;
- header->header_size = sizeof(SpeexHeader);
-
- header->rate = rate;
- header->mode = m->modeID;
- header->mode_bitstream_version = m->bitstream_version;
- if (m->modeID<0)
- speex_warning("This mode is meant to be used alone");
- header->nb_channels = nb_channels;
- header->bitrate = -1;
- speex_mode_query(m, SPEEX_MODE_FRAME_SIZE, &header->frame_size);
- header->vbr = 0;
-
- header->frames_per_packet = 0;
- header->extra_headers = 0;
- header->reserved1 = 0;
- header->reserved2 = 0;
-}
-
-EXPORT char *speex_header_to_packet(SpeexHeader *header, int *size)
-{
- SpeexHeader *le_header;
- le_header = (SpeexHeader*)speex_alloc(sizeof(SpeexHeader));
-
- SPEEX_COPY(le_header, header, 1);
-
- /*Make sure everything is now little-endian*/
- ENDIAN_SWITCH(le_header->speex_version_id);
- ENDIAN_SWITCH(le_header->header_size);
- ENDIAN_SWITCH(le_header->rate);
- ENDIAN_SWITCH(le_header->mode);
- ENDIAN_SWITCH(le_header->mode_bitstream_version);
- ENDIAN_SWITCH(le_header->nb_channels);
- ENDIAN_SWITCH(le_header->bitrate);
- ENDIAN_SWITCH(le_header->frame_size);
- ENDIAN_SWITCH(le_header->vbr);
- ENDIAN_SWITCH(le_header->frames_per_packet);
- ENDIAN_SWITCH(le_header->extra_headers);
-
- *size = sizeof(SpeexHeader);
- return (char *)le_header;
-}
-
-EXPORT SpeexHeader *speex_packet_to_header(char *packet, int size)
-{
- int i;
- SpeexHeader *le_header;
- const char *h = "Speex ";
- for (i=0;i<8;i++)
- if (packet[i]!=h[i])
- {
- speex_notify("This doesn't look like a Speex file");
- return NULL;
- }
-
- /*FIXME: Do we allow larger headers?*/
- if (size < (int)sizeof(SpeexHeader))
- {
- speex_notify("Speex header too small");
- return NULL;
- }
-
- le_header = (SpeexHeader*)speex_alloc(sizeof(SpeexHeader));
-
- SPEEX_COPY(le_header, (SpeexHeader*)packet, 1);
-
- /*Make sure everything is converted correctly from little-endian*/
- ENDIAN_SWITCH(le_header->speex_version_id);
- ENDIAN_SWITCH(le_header->header_size);
- ENDIAN_SWITCH(le_header->rate);
- ENDIAN_SWITCH(le_header->mode);
- ENDIAN_SWITCH(le_header->mode_bitstream_version);
- ENDIAN_SWITCH(le_header->nb_channels);
- ENDIAN_SWITCH(le_header->bitrate);
- ENDIAN_SWITCH(le_header->frame_size);
- ENDIAN_SWITCH(le_header->vbr);
- ENDIAN_SWITCH(le_header->frames_per_packet);
- ENDIAN_SWITCH(le_header->extra_headers);
-
- if (le_header->mode >= SPEEX_NB_MODES || le_header->mode < 0)
- {
- speex_notify("Invalid mode specified in Speex header");
- speex_free (le_header);
- return NULL;
- }
-
- if (le_header->nb_channels>2)
- le_header->nb_channels = 2;
- if (le_header->nb_channels<1)
- le_header->nb_channels = 1;
-
- return le_header;
-
-}
-
-EXPORT void speex_header_free(void *ptr)
-{
- speex_free(ptr);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-31 13:30:13 +0000