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Implement packet discard rate in NetEq.

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BUG=webrtc:7903

Change-Id: I819c9362671ca0b02c602d53e4dc39afdd8ec465
Reviewed-on: https://chromium-review.googlesource.com/555311
Commit-Queue: Minyue Li <minyue@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#18899}
This commit is contained in:
minyue-webrtc
2017-07-05 11:17:40 +02:00
committed by Commit Bot
parent 889d9654f7
commit fae474c9cd
9 changed files with 108 additions and 38 deletions
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27
webrtc/modules/audio_coding/neteq/packet_buffer.cc
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@ -19,6 +19,7 @@
#include "webrtc/api/audio_codecs/audio_decoder.h"
#include "webrtc/base/logging.h"
#include "webrtc/modules/audio_coding/neteq/decoder_database.h"
#include "webrtc/modules/audio_coding/neteq/statistics_calculator.h"
#include "webrtc/modules/audio_coding/neteq/tick_timer.h"
namespace webrtc {
@ -206,41 +207,51 @@ rtc::Optional<Packet> PacketBuffer::GetNextPacket() {
return packet;
}
int PacketBuffer::DiscardNextPacket() {
int PacketBuffer::DiscardNextPacket(StatisticsCalculator* stats) {
if (Empty()) {
return kBufferEmpty;
}
// Assert that the packet sanity checks in InsertPacket method works.
RTC_DCHECK(!buffer_.front().empty());
buffer_.pop_front();
stats->PacketsDiscarded(1);
return kOK;
}
int PacketBuffer::DiscardOldPackets(uint32_t timestamp_limit,
uint32_t horizon_samples) {
void PacketBuffer::DiscardOldPackets(uint32_t timestamp_limit,
uint32_t horizon_samples,
StatisticsCalculator* stats) {
// TODO(minyue): the following implementation is wrong. It won't discard
// old packets if the buffer_.front() is newer than timestamp_limit -
// horizon_samples. https://bugs.chromium.org/p/webrtc/issues/detail?id=7937
while (!Empty() && timestamp_limit != buffer_.front().timestamp &&
IsObsoleteTimestamp(buffer_.front().timestamp, timestamp_limit,
horizon_samples)) {
if (DiscardNextPacket() != kOK) {
if (DiscardNextPacket(stats) != kOK) {
assert(false); // Must be ok by design.
}
}
return 0;
}
int PacketBuffer::DiscardAllOldPackets(uint32_t timestamp_limit) {
return DiscardOldPackets(timestamp_limit, 0);
void PacketBuffer::DiscardAllOldPackets(uint32_t timestamp_limit,
StatisticsCalculator* stats) {
DiscardOldPackets(timestamp_limit, 0, stats);
}
void PacketBuffer::DiscardPacketsWithPayloadType(uint8_t payload_type) {
void PacketBuffer::DiscardPacketsWithPayloadType(uint8_t payload_type,
StatisticsCalculator* stats) {
int packets_discarded = 0;
for (auto it = buffer_.begin(); it != buffer_.end(); /* */) {
const Packet& packet = *it;
if (packet.payload_type == payload_type) {
it = buffer_.erase(it);
++packets_discarded;
} else {
++it;
}
}
if (packets_discarded > 0)
stats->PacketsDiscarded(packets_discarded);
}
size_t PacketBuffer::NumPacketsInBuffer() const {