eden-emu/opus
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Making sure the decoder always outputs at least 2.5 ms

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This commit is contained in:
Jean-Marc Valin 2011-08-18 15:00:59 -04:00
parent 421a628f4d
commit 8fe8b8e0b6
1 changed files with 4 additions and 0 deletions
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4
src/opus_decoder.c
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@ -103,6 +103,7 @@ OpusDecoder *opus_decoder_init(OpusDecoder *st, int Fs, int channels)
celt_decoder_ctl(celt_dec, CELT_SET_SIGNALLING(0)); celt_decoder_ctl(celt_dec, CELT_SET_SIGNALLING(0));
st->prev_mode = 0; st->prev_mode = 0;
st->frame_size = Fs/400;
return st; return st;
failure: failure:
free(st); free(st);
@ -179,6 +180,8 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
F10 = F20>>1; F10 = F20>>1;
F5 = F10>>1; F5 = F10>>1;
F2_5 = F5>>1; F2_5 = F5>>1;
if (frame_size < F2_5)
return OPUS_BUFFER_TOO_SMALL;
/* Payloads of 1 (2 including ToC) or 0 trigger the PLC/DTX */ /* Payloads of 1 (2 including ToC) or 0 trigger the PLC/DTX */
if (len<=1) if (len<=1)
{ {
@ -194,6 +197,7 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
ec_dec_init(&dec,(unsigned char*)data,len); ec_dec_init(&dec,(unsigned char*)data,len);
} else { } else {
audiosize = frame_size; audiosize = frame_size;
if (st->prev_mode == 0) if (st->prev_mode == 0)
{ {
/* If we haven't got any packet yet, all we can do is return zeros */ /* If we haven't got any packet yet, all we can do is return zeros */