diff --git a/src/opus.h b/src/opus.h index fb49b0b1fe0fa0654a8121cc8e2a9d7db009c41d..20a01afeac52e16daa3e2b136ac0a4c074bac112 100644 --- a/src/opus.h +++ b/src/opus.h @@ -157,6 +157,8 @@ extern "C" { #define OPUS_GET_LOOKAHEAD_REQUEST 27 #define OPUS_GET_LOOKAHEAD(x) OPUS_GET_LOOKAHEAD_REQUEST, __opus_check_int_ptr(x) +#define OPUS_RESET_STATE 28 + /* For testing purposes: the encoder and decoder state should always be identical after coding a payload */ #define OPUS_GET_FINAL_RANGE_REQUEST 29 diff --git a/src/opus_decoder.c b/src/opus_decoder.c index 074b9d6e05dbd5826d01fcf7da6a8d931d1c5f36..9f10554c77dbf1c45228f1ae86cfa48018dbdde7 100644 --- a/src/opus_decoder.c +++ b/src/opus_decoder.c @@ -50,17 +50,19 @@ struct OpusDecoder { int celt_dec_offset; int silk_dec_offset; int channels; + int Fs; /** Sampling rate (at the API level) */ + + /* Everything beyond this point gets cleared on a reset */ +#define OPUS_DECODER_RESET_START stream_channels int stream_channels; - int bandwidth; - /* Sampling rate (at the API level) */ - int Fs; - int mode; - int prev_mode; - int frame_size; - int prev_redundancy; + int bandwidth; + int mode; + int prev_mode; + int frame_size; + int prev_redundancy; - int rangeFinal; + int rangeFinal; }; #ifdef FIXED_POINT @@ -216,7 +218,6 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data, { data = NULL; /* In that case, don't conceal more than what the ToC says */ - /* FIXME: What if st->frame_size has never been set? */ frame_size = IMIN(frame_size, st->frame_size); } if (data != NULL) @@ -759,6 +760,24 @@ int opus_decoder_ctl(OpusDecoder *st, int request, ...) *value = st->rangeFinal; } break; + case OPUS_RESET_STATE: + { + void *silk_dec; + CELTDecoder *celt_dec; + + silk_dec = (char*)st+st->silk_dec_offset; + celt_dec = (CELTDecoder*)((char*)st+st->celt_dec_offset); + + OPUS_CLEAR((char*)&st->OPUS_DECODER_RESET_START, + opus_decoder_get_size(st->channels)- + ((char*)&st->OPUS_DECODER_RESET_START - (char*)st)); + + celt_decoder_ctl(celt_dec, CELT_RESET_STATE); + silk_InitDecoder( silk_dec ); + st->stream_channels = st->channels; + st->frame_size = st->Fs/400; + } + break; default: /*fprintf(stderr, "unknown opus_decoder_ctl() request: %d", request);*/ ret = OPUS_BAD_ARG;