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Removing a hack for CNG

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However, two other "hacks" had to be added to maintain bit-exactness
with legacy.

Note that this change requires a new version of the universal.rtp test
input, although the output reference stays the same.

Moving reference files, and using a new input vector for NetEq4.
The new input vector neteq_universal_new.rtp is identical to the old
neteq_universal.rtp, except that the payload type for CNG packets that
follows a wideband codec is changed to 98.

Update to resources revision 15 where the new reference files are.

Also changing a faulty log error.

Review URL: https://webrtc-codereview.appspot.com/1078009

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3442 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
henrik.lundin@webrtc.org
2013-01-31 13:32:51 +00:00
parent 96a08cef68
commit 73deaadd0e
4 changed files with 48 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
webrtc/modules/audio_coding/neteq4/neteq_impl.cc
View File

@ -374,7 +374,9 @@ int NetEqImpl::InsertPacketInternal(const WebRtcRTPHeader& rtp_header,
packet->primary = true;
packet->waiting_time = 0;
packet->payload = new uint8_t[packet->payload_length];
LOG_F(LS_ERROR) << "Payload pointer is NULL.";
if (!packet->payload) {
LOG_F(LS_ERROR) << "Payload pointer is NULL.";
}
assert(payload); // Already checked above.
memcpy(packet->payload, payload, packet->payload_length);
// Insert packet in a packet list.
@ -844,7 +846,14 @@ int NetEqImpl::GetDecision(Operations* operation,
delay_manager_->Reset();
stats_.ResetMcu();
if (*operation == kRfc3389CngNoPacket) {
if (*operation == kRfc3389CngNoPacket
#ifndef LEGACY_BITEXACT
// Without this check, it can happen that a non-CNG packet is sent to
// the CNG decoder as if it was a SID frame. This is clearly a bug,
// but is kept for now to maintain bit-exactness with the test vectors.
&& decoder_database_->IsComfortNoise(header->payloadType)
#endif
) {
// Change decision to CNG packet, since we do have a CNG packet, but it
// was considered too early to use. Now, use it anyway.
*operation = kRfc3389Cng;
@ -1400,14 +1409,31 @@ int NetEqImpl::DoRfc3389Cng(PacketList* packet_list, bool play_dtmf,
assert(packet_list->size() == 1);
Packet* packet = packet_list->front();
packet_list->pop_front();
// Temp hack to get correct PT for CNG.
// TODO(hlundin): Update universal.rtp and remove this hack.
if (fs_hz_ == 16000) {
packet->header.payloadType = 98;
} else if (fs_hz_ == 32000) {
packet->header.payloadType = 99;
if (!decoder_database_->IsComfortNoise(packet->header.payloadType)) {
#ifdef LEGACY_BITEXACT
// This can happen due to a bug in GetDecision. Change the payload type
// to a CNG type, and move on. Note that this means that we are in fact
// sending a non-CNG payload to the comfort noise decoder for decoding.
// Clearly wrong, but will maintain bit-exactness with legacy.
if (fs_hz_ == 8000) {
packet->header.payloadType =
decoder_database_->GetRtpPayloadType(kDecoderCNGnb);
} else if (fs_hz_ == 16000) {
packet->header.payloadType =
decoder_database_->GetRtpPayloadType(kDecoderCNGwb);
} else if (fs_hz_ == 32000) {
packet->header.payloadType =
decoder_database_->GetRtpPayloadType(kDecoderCNGswb32kHz);
} else if (fs_hz_ == 48000) {
packet->header.payloadType =
decoder_database_->GetRtpPayloadType(kDecoderCNGswb48kHz);
}
assert(decoder_database_->IsComfortNoise(packet->header.payloadType));
#else
LOG(LS_ERROR) << "Trying to decode non-CNG payload as CNG.";
return kOtherError;
#endif
}
// End of hack.
// UpdateParameters() deletes |packet|.
if (comfort_noise_->UpdateParameters(packet) ==
ComfortNoise::kInternalError) {