diff options
Diffstat (limited to 'src/opus_decoder.c')
| -rw-r--r-- | src/opus_decoder.c | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/src/opus_decoder.c b/src/opus_decoder.c index 6520e748..8cd58a91 100644 --- a/src/opus_decoder.c +++ b/src/opus_decoder.c @@ -672,7 +672,7 @@ int opus_decode_native(OpusDecoder *st, const unsigned char *data, packet_stream_channels = opus_packet_get_nb_channels(data); count = opus_packet_parse_impl(data, len, self_delimited, &toc, NULL, - size, &offset, packet_offset); + size, &offset, packet_offset, NULL, NULL); if (count<0) return count; @@ -1039,3 +1039,54 @@ int opus_decoder_get_nb_samples(const OpusDecoder *dec, { return opus_packet_get_nb_samples(packet, len, dec->Fs); } + +int opus_decoder_dred_input(OpusDecoder *st, const unsigned char *data, + opus_int32 len, int offset) +{ + const unsigned char *data0; + int len0; + const unsigned char *payload = NULL; + opus_int32 payload_len; + int frame = 0; + int ret; + const unsigned char *frames[48]; + opus_int16 size[48]; + + /* Get the padding section of the packet. */ + ret = opus_packet_parse_impl(data, len, 0, NULL, frames, size, NULL, NULL, &data0, &len0); + data = data0; + len = len0; + /* Scan extensions in order until we find the earliest frame with DRED data. */ + while (len > 0) + { + opus_int32 header_size; + int id, L; + len0 = len; + data0 = data; + id = *data0 >> 1; + L = *data0 & 0x1; + len = skip_extension(&data, len, &header_size); + if (len < 0) + break; + if (id == 1) + { + if (L==0) + { + frame++; + } else { + frame += data[1]; + } + } else if (id == 127) + { + payload = data0+header_size; + payload_len = (data-data0)-header_size; + break; + } + } + if (payload != NULL) + { + /* Found something -- do the decoding. */ + return 1; + } + return 0; +} |