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Store decoded SILK pulses as 16-bit vector

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This saves 640 bytes on the peak stack usage.
This commit is contained in:
Jean-Marc Valin 2014-01-06 21:59:48 -05:00
parent ad8371d172
commit dce69d2b9b
7 changed files with 17 additions and 17 deletions
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4
silk/code_signs.c
View file

@ -74,7 +74,7 @@ void silk_encode_signs(
/* Decodes signs of excitation */ /* Decodes signs of excitation */
void silk_decode_signs( void silk_decode_signs(
ec_dec *psRangeDec, /* I/O Compressor data structure */ ec_dec *psRangeDec, /* I/O Compressor data structure */
opus_int pulses[], /* I/O pulse signal */ opus_int16 pulses[], /* I/O pulse signal */
opus_int length, /* I length of input */ opus_int length, /* I length of input */
const opus_int signalType, /* I Signal type */ const opus_int signalType, /* I Signal type */
const opus_int quantOffsetType, /* I Quantization offset type */ const opus_int quantOffsetType, /* I Quantization offset type */
@ -83,7 +83,7 @@ void silk_decode_signs(
{ {
opus_int i, j, p; opus_int i, j, p;
opus_uint8 icdf[ 2 ]; opus_uint8 icdf[ 2 ];
opus_int *q_ptr; opus_int16 *q_ptr;
const opus_uint8 *icdf_ptr; const opus_uint8 *icdf_ptr;
icdf[ 1 ] = 0; icdf[ 1 ] = 0;

2
silk/dec_API.c
View file

@ -196,7 +196,7 @@ opus_int silk_Decode( /* O Returns error co
for( i = 0; i < channel_state[ 0 ].nFramesPerPacket; i++ ) { for( i = 0; i < channel_state[ 0 ].nFramesPerPacket; i++ ) {
for( n = 0; n < decControl->nChannelsInternal; n++ ) { for( n = 0; n < decControl->nChannelsInternal; n++ ) {
if( channel_state[ n ].LBRR_flags[ i ] ) { if( channel_state[ n ].LBRR_flags[ i ] ) {
opus_int pulses[ MAX_FRAME_LENGTH ]; opus_int16 pulses[ MAX_FRAME_LENGTH ];
opus_int condCoding; opus_int condCoding;
if( decControl->nChannelsInternal == 2 && n == 0 ) { if( decControl->nChannelsInternal == 2 && n == 0 ) {

2
silk/decode_core.c
View file

@ -39,7 +39,7 @@ void silk_decode_core(
silk_decoder_state *psDec, /* I/O Decoder state */ silk_decoder_state *psDec, /* I/O Decoder state */
silk_decoder_control *psDecCtrl, /* I Decoder control */ silk_decoder_control *psDecCtrl, /* I Decoder control */
opus_int16 xq[], /* O Decoded speech */ opus_int16 xq[], /* O Decoded speech */
const opus_int pulses[ MAX_FRAME_LENGTH ] /* I Pulse signal */ const opus_int16 pulses[ MAX_FRAME_LENGTH ] /* I Pulse signal */
) )
{ {
opus_int i, k, lag = 0, start_idx, sLTP_buf_idx, NLSF_interpolation_flag, signalType; opus_int i, k, lag = 0, start_idx, sLTP_buf_idx, NLSF_interpolation_flag, signalType;

4
silk/decode_frame.c
View file

@ -47,13 +47,13 @@ opus_int silk_decode_frame(
{ {
VARDECL( silk_decoder_control, psDecCtrl ); VARDECL( silk_decoder_control, psDecCtrl );
opus_int L, mv_len, ret = 0; opus_int L, mv_len, ret = 0;
VARDECL( opus_int, pulses ); VARDECL( opus_int16, pulses );
SAVE_STACK; SAVE_STACK;
L = psDec->frame_length; L = psDec->frame_length;
ALLOC( psDecCtrl, 1, silk_decoder_control ); ALLOC( psDecCtrl, 1, silk_decoder_control );
ALLOC( pulses, (L + SHELL_CODEC_FRAME_LENGTH - 1) & ALLOC( pulses, (L + SHELL_CODEC_FRAME_LENGTH - 1) &
~(SHELL_CODEC_FRAME_LENGTH - 1), opus_int ); ~(SHELL_CODEC_FRAME_LENGTH - 1), opus_int16 );
psDecCtrl->LTP_scale_Q14 = 0; psDecCtrl->LTP_scale_Q14 = 0;
/* Safety checks */ /* Safety checks */

6
silk/decode_pulses.c
View file

@ -36,7 +36,7 @@ POSSIBILITY OF SUCH DAMAGE.
/*********************************************/ /*********************************************/
void silk_decode_pulses( void silk_decode_pulses(
ec_dec *psRangeDec, /* I/O Compressor data structure */ ec_dec *psRangeDec, /* I/O Compressor data structure */
opus_int pulses[], /* O Excitation signal */ opus_int16 pulses[], /* O Excitation signal */
const opus_int signalType, /* I Sigtype */ const opus_int signalType, /* I Sigtype */
const opus_int quantOffsetType, /* I quantOffsetType */ const opus_int quantOffsetType, /* I quantOffsetType */
const opus_int frame_length /* I Frame length */ const opus_int frame_length /* I Frame length */
@ -44,7 +44,7 @@ void silk_decode_pulses(
{ {
opus_int i, j, k, iter, abs_q, nLS, RateLevelIndex; opus_int i, j, k, iter, abs_q, nLS, RateLevelIndex;
opus_int sum_pulses[ MAX_NB_SHELL_BLOCKS ], nLshifts[ MAX_NB_SHELL_BLOCKS ]; opus_int sum_pulses[ MAX_NB_SHELL_BLOCKS ], nLshifts[ MAX_NB_SHELL_BLOCKS ];
opus_int *pulses_ptr; opus_int16 *pulses_ptr;
const opus_uint8 *cdf_ptr; const opus_uint8 *cdf_ptr;
/*********************/ /*********************/
@ -84,7 +84,7 @@ void silk_decode_pulses(
if( sum_pulses[ i ] > 0 ) { if( sum_pulses[ i ] > 0 ) {
silk_shell_decoder( &pulses[ silk_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], psRangeDec, sum_pulses[ i ] ); silk_shell_decoder( &pulses[ silk_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], psRangeDec, sum_pulses[ i ] );
} else { } else {
silk_memset( &pulses[ silk_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], 0, SHELL_CODEC_FRAME_LENGTH * sizeof( opus_int ) ); silk_memset( &pulses[ silk_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], 0, SHELL_CODEC_FRAME_LENGTH * sizeof( pulses[0] ) );
} }
} }

8
silk/main.h
View file

@ -116,7 +116,7 @@ void silk_encode_signs(
/* Decodes signs of excitation */ /* Decodes signs of excitation */
void silk_decode_signs( void silk_decode_signs(
ec_dec *psRangeDec, /* I/O Compressor data structure */ ec_dec *psRangeDec, /* I/O Compressor data structure */
opus_int pulses[], /* I/O pulse signal */ opus_int16 pulses[], /* I/O pulse signal */
opus_int length, /* I length of input */ opus_int length, /* I length of input */
const opus_int signalType, /* I Signal type */ const opus_int signalType, /* I Signal type */
const opus_int quantOffsetType, /* I Quantization offset type */ const opus_int quantOffsetType, /* I Quantization offset type */
@ -161,7 +161,7 @@ void silk_shell_encoder(
/* Shell decoder, operates on one shell code frame of 16 pulses */ /* Shell decoder, operates on one shell code frame of 16 pulses */
void silk_shell_decoder( void silk_shell_decoder(
opus_int *pulses0, /* O data: nonnegative pulse amplitudes */ opus_int16 *pulses0, /* O data: nonnegative pulse amplitudes */
ec_dec *psRangeDec, /* I/O Compressor data structure */ ec_dec *psRangeDec, /* I/O Compressor data structure */
const opus_int pulses4 /* I number of pulses per pulse-subframe */ const opus_int pulses4 /* I number of pulses per pulse-subframe */
); );
@ -397,13 +397,13 @@ void silk_decode_core(
silk_decoder_state *psDec, /* I/O Decoder state */ silk_decoder_state *psDec, /* I/O Decoder state */
silk_decoder_control *psDecCtrl, /* I Decoder control */ silk_decoder_control *psDecCtrl, /* I Decoder control */
opus_int16 xq[], /* O Decoded speech */ opus_int16 xq[], /* O Decoded speech */
const opus_int pulses[ MAX_FRAME_LENGTH ] /* I Pulse signal */ const opus_int16 pulses[ MAX_FRAME_LENGTH ] /* I Pulse signal */
); );
/* Decode quantization indices of excitation (Shell coding) */ /* Decode quantization indices of excitation (Shell coding) */
void silk_decode_pulses( void silk_decode_pulses(
ec_dec *psRangeDec, /* I/O Compressor data structure */ ec_dec *psRangeDec, /* I/O Compressor data structure */
opus_int pulses[], /* O Excitation signal */ opus_int16 pulses[], /* O Excitation signal */
const opus_int signalType, /* I Sigtype */ const opus_int signalType, /* I Sigtype */
const opus_int quantOffsetType, /* I quantOffsetType */ const opus_int quantOffsetType, /* I quantOffsetType */
const opus_int frame_length /* I Frame length */ const opus_int frame_length /* I Frame length */

8
silk/shell_coder.c
View file

@ -58,8 +58,8 @@ static OPUS_INLINE void encode_split(
} }
static OPUS_INLINE void decode_split( static OPUS_INLINE void decode_split(
opus_int *p_child1, /* O pulse amplitude of first child subframe */ opus_int16 *p_child1, /* O pulse amplitude of first child subframe */
opus_int *p_child2, /* O pulse amplitude of second child subframe */ opus_int16 *p_child2, /* O pulse amplitude of second child subframe */
ec_dec *psRangeDec, /* I/O Compressor data structure */ ec_dec *psRangeDec, /* I/O Compressor data structure */
const opus_int p, /* I pulse amplitude of current subframe */ const opus_int p, /* I pulse amplitude of current subframe */
const opus_uint8 *shell_table /* I table of shell cdfs */ const opus_uint8 *shell_table /* I table of shell cdfs */
@ -117,12 +117,12 @@ void silk_shell_encoder(
/* Shell decoder, operates on one shell code frame of 16 pulses */ /* Shell decoder, operates on one shell code frame of 16 pulses */
void silk_shell_decoder( void silk_shell_decoder(
opus_int *pulses0, /* O data: nonnegative pulse amplitudes */ opus_int16 *pulses0, /* O data: nonnegative pulse amplitudes */
ec_dec *psRangeDec, /* I/O Compressor data structure */ ec_dec *psRangeDec, /* I/O Compressor data structure */
const opus_int pulses4 /* I number of pulses per pulse-subframe */ const opus_int pulses4 /* I number of pulses per pulse-subframe */
) )
{ {
opus_int pulses3[ 2 ], pulses2[ 4 ], pulses1[ 8 ]; opus_int16 pulses3[ 2 ], pulses2[ 4 ], pulses1[ 8 ];
/* this function operates on one shell code frame of 16 pulses */ /* this function operates on one shell code frame of 16 pulses */
silk_assert( SHELL_CODEC_FRAME_LENGTH == 16 ); silk_assert( SHELL_CODEC_FRAME_LENGTH == 16 );