eden-emu/opus
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Fix DRED segfault

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Properly re-initialize DRED (only) when needed
This commit is contained in:
Jean-Marc Valin 2022-12-20 17:32:16 -05:00
parent 72c93e0523
commit 68eea61cb0
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GPG key ID: 531A52533318F00A
2 changed files with 14 additions and 12 deletions
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5
silk/structs.h
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@ -262,11 +262,6 @@ typedef struct {
/* FIXME: We should include the state struct directly to preserve the state shadow copy property. */
LPCNetPLCState *lpcnet;
int pre_filled;
#ifdef ENABLE_NEURAL_FEC
DREDDec dred_decoder;
float fec_features[2*DRED_NUM_REDUNDANCY_FRAMES*DRED_NUM_FEATURES];
int nb_fec_frames;
#endif
#endif
} silk_PLC_struct;

21
src/opus_decoder.c
View file

@ -74,6 +74,11 @@ struct OpusDecoder {
#ifndef FIXED_POINT
opus_val16 softclip_mem[2];
#endif
#ifdef ENABLE_NEURAL_FEC
DREDDec dred_decoder;
float fec_features[2*DRED_NUM_REDUNDANCY_FRAMES*DRED_NUM_FEATURES];
int nb_fec_frames;
#endif
opus_uint32 rangeFinal;
};
@ -151,7 +156,7 @@ int opus_decoder_init(OpusDecoder *st, opus_int32 Fs, int channels)
celt_decoder_ctl(celt_dec, CELT_SET_SIGNALLING(0));
#ifdef ENABLE_NEURAL_FEC
init_dred_decoder(&((silk_decoder_state*)silk_dec)->sPLC.dred_decoder);
init_dred_decoder(&st->dred_decoder);
#endif
st->prev_mode = 0;
st->frame_size = Fs/400;
@ -653,7 +658,7 @@ int opus_decode_native(OpusDecoder *st, const unsigned char *data,
/* For FEC/PLC, frame_size has to be to have a multiple of 2.5 ms */
if ((decode_fec || len==0 || data==NULL) && frame_size%(st->Fs/400)!=0)
return OPUS_BAD_ARG;
if (decode_fec > 0 && silk_dec->sPLC.nb_fec_frames > 0) {
if (decode_fec > 0 && st->nb_fec_frames > 0) {
int features_per_frame;
int needed_feature_frames;
features_per_frame = frame_size/(st->Fs/100);
@ -661,8 +666,8 @@ int opus_decode_native(OpusDecoder *st, const unsigned char *data,
if (!silk_dec->sPLC.pre_filled) needed_feature_frames+=2;
for (i=0;i<needed_feature_frames;i++) {
int feature_offset = (needed_feature_frames-i-1 + (decode_fec-1)*features_per_frame);
if (feature_offset <= silk_dec->sPLC.nb_fec_frames-1) {
lpcnet_plc_fec_add(silk_dec->sPLC.lpcnet, silk_dec->sPLC.fec_features+feature_offset*DRED_NUM_FEATURES);
if (feature_offset <= st->nb_fec_frames-1) {
lpcnet_plc_fec_add(silk_dec->sPLC.lpcnet, st->fec_features+feature_offset*DRED_NUM_FEATURES);
} else {
lpcnet_plc_fec_add(silk_dec->sPLC.lpcnet, NULL);
}
@ -897,6 +902,7 @@ int opus_decoder_ctl(OpusDecoder *st, int request, ...)
break;
case OPUS_RESET_STATE:
{
dred_deinit_decoder(&st->dred_decoder);
OPUS_CLEAR((char*)&st->OPUS_DECODER_RESET_START,
sizeof(OpusDecoder)-
((char*)&st->OPUS_DECODER_RESET_START - (char*)st));
@ -905,6 +911,9 @@ int opus_decoder_ctl(OpusDecoder *st, int request, ...)
silk_InitDecoder( silk_dec );
st->stream_channels = st->channels;
st->frame_size = st->Fs/400;
#ifdef ENABLE_NEURAL_FEC
init_dred_decoder(&st->dred_decoder);
#endif
}
break;
case OPUS_GET_SAMPLE_RATE_REQUEST:
@ -1109,11 +1118,9 @@ int opus_decoder_dred_input(OpusDecoder *st, const unsigned char *data,
if (payload != NULL)
{
int min_feature_frames;
silk_decoder_state *silk_dec;
silk_dec = (silk_decoder_state*)((char*)st+st->silk_dec_offset);
/*printf("Found: %p of size %d\n", payload, payload_len);*/
min_feature_frames = IMIN(2 + offset, 2*DRED_NUM_REDUNDANCY_FRAMES);
silk_dec->sPLC.nb_fec_frames = dred_decode_redundancy_package(&silk_dec->sPLC.dred_decoder, silk_dec->sPLC.fec_features, payload, payload_len, min_feature_frames);
st->nb_fec_frames = dred_decode_redundancy_package(&st->dred_decoder, st->fec_features, payload, payload_len, min_feature_frames);
return 1;
}
return 0;