evgeny
38c9f229bc
- u_async.c: process immediate_queue BEFORE epoll_wait in uasync_poll - stcp_link.c: defensive NULL etcp_conn/etcp_link in stcp_link_close - utun_instance.c: move stcp_server_list_destroy_all to Phase J (before ETCP), add deferred drain in both Phase J and L - stcp.h/c: STCP_HS_ENC_CLIENT 6→38, STCP_HS_ENC_SERVER 7→39, exchange ed25519_pubkey in both handshake directions - etcp_connections.c: copy peer_ed25519 from STCP to ETCP_CONN in etcp_link_enter_ready_tcp; guard link->etcp in tcp_link_close_cb - chat_sync.c: fix lk->conn NULL dereference for TCP links - test_stcp.c: update stcp_server_create/stcp_client_connect callsites - tools/chat_tcp_test: change transport udp→tcp
170 lines
7.2 KiB
C
170 lines
7.2 KiB
C
/***********************************************************************
|
|
Copyright (c) 2006-2011, Skype Limited. All rights reserved.
|
|
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 Internet Society, IETF or IETF Trust, nor the
|
|
names of specific 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 COPYRIGHT OWNER 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 "main.h"
|
|
#include "stack_alloc.h"
|
|
#include "PLC.h"
|
|
|
|
#ifdef ENABLE_OSCE
|
|
#include "osce.h"
|
|
#endif
|
|
|
|
/****************/
|
|
/* Decode frame */
|
|
/****************/
|
|
opus_int silk_decode_frame(
|
|
silk_decoder_state *psDec, /* I/O Pointer to Silk decoder state */
|
|
ec_dec *psRangeDec, /* I/O Compressor data structure */
|
|
opus_int16 pOut[], /* O Pointer to output speech frame */
|
|
opus_int32 *pN, /* O Pointer to size of output frame */
|
|
opus_int lostFlag, /* I 0: no loss, 1 loss, 2 decode fec */
|
|
opus_int condCoding, /* I The type of conditional coding to use */
|
|
#ifdef ENABLE_DEEP_PLC
|
|
LPCNetPLCState *lpcnet,
|
|
#endif
|
|
#ifdef ENABLE_OSCE
|
|
OSCEModel *osce_model,
|
|
#endif
|
|
int arch /* I Run-time architecture */
|
|
)
|
|
{
|
|
VARDECL( silk_decoder_control, psDecCtrl );
|
|
opus_int L, mv_len, ret = 0;
|
|
SAVE_STACK;
|
|
|
|
L = psDec->frame_length;
|
|
ALLOC( psDecCtrl, 1, silk_decoder_control );
|
|
psDecCtrl->LTP_scale_Q14 = 0;
|
|
|
|
/* Safety checks */
|
|
celt_assert( L > 0 && L <= MAX_FRAME_LENGTH );
|
|
|
|
if( lostFlag == FLAG_DECODE_NORMAL ||
|
|
( lostFlag == FLAG_DECODE_LBRR && psDec->LBRR_flags[ psDec->nFramesDecoded ] == 1 ) )
|
|
{
|
|
VARDECL( opus_int16, pulses );
|
|
#ifdef ENABLE_OSCE
|
|
opus_int32 ec_start;
|
|
ec_start = ec_tell(psRangeDec);
|
|
#endif
|
|
ALLOC( pulses, (L + SHELL_CODEC_FRAME_LENGTH - 1) &
|
|
~(SHELL_CODEC_FRAME_LENGTH - 1), opus_int16 );
|
|
/*********************************************/
|
|
/* Decode quantization indices of side info */
|
|
/*********************************************/
|
|
silk_decode_indices( psDec, psRangeDec, psDec->nFramesDecoded, lostFlag, condCoding );
|
|
|
|
/*********************************************/
|
|
/* Decode quantization indices of excitation */
|
|
/*********************************************/
|
|
silk_decode_pulses( psRangeDec, pulses, psDec->indices.signalType,
|
|
psDec->indices.quantOffsetType, psDec->frame_length );
|
|
|
|
/********************************************/
|
|
/* Decode parameters and pulse signal */
|
|
/********************************************/
|
|
silk_decode_parameters( psDec, psDecCtrl, condCoding );
|
|
|
|
/********************************************************/
|
|
/* Run inverse NSQ */
|
|
/********************************************************/
|
|
silk_decode_core( psDec, psDecCtrl, pOut, pulses, arch );
|
|
|
|
/*************************/
|
|
/* Update output buffer. */
|
|
/*************************/
|
|
celt_assert( psDec->ltp_mem_length >= psDec->frame_length );
|
|
mv_len = psDec->ltp_mem_length - psDec->frame_length;
|
|
silk_memmove( psDec->outBuf, &psDec->outBuf[ psDec->frame_length ], mv_len * sizeof(opus_int16) );
|
|
silk_memcpy( &psDec->outBuf[ mv_len ], pOut, psDec->frame_length * sizeof( opus_int16 ) );
|
|
|
|
#ifdef ENABLE_OSCE
|
|
/********************************************************/
|
|
/* Run SILK enhancer */
|
|
/********************************************************/
|
|
osce_enhance_frame( osce_model, psDec, psDecCtrl, pOut, ec_tell(psRangeDec) - ec_start, arch );
|
|
#endif
|
|
|
|
/********************************************************/
|
|
/* Update PLC state */
|
|
/********************************************************/
|
|
silk_PLC( psDec, psDecCtrl, pOut, 0,
|
|
#ifdef ENABLE_DEEP_PLC
|
|
lpcnet,
|
|
#endif
|
|
arch );
|
|
|
|
psDec->lossCnt = 0;
|
|
psDec->prevSignalType = psDec->indices.signalType;
|
|
celt_assert( psDec->prevSignalType >= 0 && psDec->prevSignalType <= 2 );
|
|
|
|
/* A frame has been decoded without errors */
|
|
psDec->first_frame_after_reset = 0;
|
|
} else {
|
|
/* Handle packet loss by extrapolation */
|
|
silk_PLC( psDec, psDecCtrl, pOut, 1,
|
|
#ifdef ENABLE_DEEP_PLC
|
|
lpcnet,
|
|
#endif
|
|
arch );
|
|
|
|
#ifdef ENABLE_OSCE
|
|
osce_reset( &psDec->osce, psDec->osce.method );
|
|
#endif
|
|
/*************************/
|
|
/* Update output buffer. */
|
|
/*************************/
|
|
celt_assert( psDec->ltp_mem_length >= psDec->frame_length );
|
|
mv_len = psDec->ltp_mem_length - psDec->frame_length;
|
|
silk_memmove( psDec->outBuf, &psDec->outBuf[ psDec->frame_length ], mv_len * sizeof(opus_int16) );
|
|
silk_memcpy( &psDec->outBuf[ mv_len ], pOut, psDec->frame_length * sizeof( opus_int16 ) );
|
|
}
|
|
|
|
/************************************************/
|
|
/* Comfort noise generation / estimation */
|
|
/************************************************/
|
|
silk_CNG( psDec, psDecCtrl, pOut, L );
|
|
|
|
/****************************************************************/
|
|
/* Ensure smooth connection of extrapolated and good frames */
|
|
/****************************************************************/
|
|
silk_PLC_glue_frames( psDec, pOut, L );
|
|
|
|
/* Update some decoder state variables */
|
|
psDec->lagPrev = psDecCtrl->pitchL[ psDec->nb_subfr - 1 ];
|
|
|
|
/* Set output frame length */
|
|
*pN = L;
|
|
|
|
RESTORE_STACK;
|
|
return ret;
|
|
}
|