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Remove timeout in getNextPlayerChunk

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badaix 2020-02-16 21:23:26 +01:00
parent 3e91984d3e
commit 99e147c5aa
5 changed files with 63 additions and 89 deletions
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2
client/player/alsa_player.cpp
View file

@ -253,7 +253,7 @@ void AlsaPlayer::worker()
else
{
LOG(INFO) << "Failed to get chunk\n";
while (active_ && !stream_->waitForChunk(100))
while (active_ && !stream_->waitForChunk(100ms))
{
LOG(DEBUG) << "Waiting for chunk\n";
if ((handle_ != nullptr) && (chronos::getTickCount() - lastChunkTick > 5000))

2
client/player/coreaudio_player.cpp
View file

@ -134,7 +134,7 @@ void CoreAudioPlayer::worker()
{
while (active_)
{
if (pubStream_->waitForChunk(100))
if (pubStream_->waitForChunk(100ms))
{
try
{

122
client/stream.cpp
View file

@ -1,20 +1,20 @@
/***
This file is part of snapcast
Copyright (C) 2014-2020 Johannes Pohl
This file is part of snapcast
Copyright (C) 2014-2020 Johannes Pohl
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "stream.hpp"
#include "common/aixlog.hpp"
@ -70,6 +70,7 @@ Stream::Stream(const SampleFormat& in_format, const SampleFormat& out_format)
if (error)
{
LOG(ERROR, LOG_TAG) << "Error soxr_create: " << error << "\n";
soxr_ = nullptr;
}
// initialize the buffer with 20ms (~latency of the reampler)
resample_buffer_.resize(format_.frameSize * ceil(format_.msRate()) * 20);
@ -93,7 +94,7 @@ void Stream::setRealSampleRate(double sampleRate)
else
{
correctAfterXFrames_ = round((format_.rate / sampleRate) / (format_.rate / sampleRate - 1.));
// LOG(DEBUG, LOG_TAG) << "Correct after X: " << correctAfterXFrames_ << " (Real rate: " << sampleRate << ", rate: " << format_.rate << ")\n";
// LOG(TRACE, LOG_TAG) << "Correct after X: " << correctAfterXFrames_ << " (Real rate: " << sampleRate << ", rate: " << format_.rate << ")\n";
}
}
@ -114,8 +115,16 @@ void Stream::clearChunks()
void Stream::addChunk(unique_ptr<msg::PcmChunk> chunk)
{
while (chunks_.size() * chunk->duration<cs::msec>().count() > 10000)
chunks_.pop();
// drop chunks that should have been played 10s before. Just in case, this shouldn't happen.
while (!chunks_.empty())
{
auto first_chunk = chunks_.front();
cs::usec age = std::chrono::duration_cast<cs::usec>(TimeProvider::serverNow() - first_chunk->start());
if (age > 10s + bufferMs_)
chunks_.pop();
else
break;
}
// chunks_.push(move(chunk));
// LOG(DEBUG, LOG_TAG) << "new chunk: " << chunk->duration<cs::msec>().count() << ", Chunks: " << chunks_.size() << "\n";
@ -141,7 +150,6 @@ void Stream::addChunk(unique_ptr<msg::PcmChunk> chunk)
if (error)
{
LOG(ERROR, LOG_TAG) << "Error soxr_process: " << error << "\n";
// delete out;
}
else
{
@ -185,7 +193,8 @@ void Stream::addChunk(unique_ptr<msg::PcmChunk> chunk)
{
// buffer for resampled data too small, add space for 5ms
resample_buffer_.resize(resample_buffer_.size() + format_.frameSize * ceil(format_.msRate()) * 5);
LOG(INFO, LOG_TAG) << "Resample buffer completely filled, adding space for 5ms; new buffer size: " << resample_buffer_.size() << " bytes\n";
LOG(DEBUG, LOG_TAG) << "Resample buffer completely filled, adding space for 5ms; new buffer size: " << resample_buffer_.size()
<< " bytes\n";
}
// //LOG(TRACE, LOG_TAG) << "ts: " << out->timestamp.sec << "s, " << out->timestamp.usec/1000.f << " ms, duration: " << odone / format_.msRate()
@ -199,25 +208,21 @@ void Stream::addChunk(unique_ptr<msg::PcmChunk> chunk)
}
bool Stream::waitForChunk(size_t ms) const
bool Stream::waitForChunk(const std::chrono::milliseconds& timeout) const
{
return chunks_.wait_for(std::chrono::milliseconds(ms));
return chunks_.wait_for(timeout);
}
cs::time_point_clk Stream::getSilentPlayerChunk(void* outputBuffer, unsigned long frames)
void Stream::getSilentPlayerChunk(void* outputBuffer, unsigned long frames) const
{
if (!chunk_)
chunk_ = chunks_.pop();
cs::time_point_clk tp = chunk_->start();
memset(outputBuffer, 0, frames * format_.frameSize);
return tp;
}
cs::time_point_clk Stream::getNextPlayerChunk(void* outputBuffer, const cs::usec& timeout, unsigned long frames)
cs::time_point_clk Stream::getNextPlayerChunk(void* outputBuffer, unsigned long frames)
{
if (!chunk_ && !chunks_.try_pop(chunk_, timeout))
if (!chunk_ && !chunks_.try_pop(chunk_))
throw 0;
cs::time_point_clk tp = chunk_->start();
@ -225,14 +230,14 @@ cs::time_point_clk Stream::getNextPlayerChunk(void* outputBuffer, const cs::usec
while (read < frames)
{
read += chunk_->readFrames(static_cast<char*>(outputBuffer) + read * format_.frameSize, frames - read);
if (chunk_->isEndOfChunk() && !chunks_.try_pop(chunk_, timeout))
if (chunk_->isEndOfChunk() && !chunks_.try_pop(chunk_))
throw 0;
}
return tp;
}
cs::time_point_clk Stream::getNextPlayerChunk(void* outputBuffer, const cs::usec& timeout, unsigned long frames, long framesCorrection)
cs::time_point_clk Stream::getNextPlayerChunk(void* outputBuffer, unsigned long frames, long framesCorrection)
{
if (framesCorrection < 0 && frames + framesCorrection <= 0)
{
@ -240,14 +245,14 @@ cs::time_point_clk Stream::getNextPlayerChunk(void* outputBuffer, const cs::usec
framesCorrection = -frames + 1;
}
frame_delta_ -= framesCorrection;
if (framesCorrection == 0)
return getNextPlayerChunk(outputBuffer, timeout, frames);
return getNextPlayerChunk(outputBuffer, frames);
frame_delta_ -= framesCorrection;
long toRead = frames + framesCorrection;
char* buffer = new char[toRead * format_.frameSize];
cs::time_point_clk tp = getNextPlayerChunk(buffer, timeout, toRead);
cs::time_point_clk tp = getNextPlayerChunk(buffer, toRead);
const auto max = framesCorrection < 0 ? frames : toRead;
// Divide the buffer into one more slice than frames that need to be dropped.
@ -296,34 +301,6 @@ cs::time_point_clk Stream::getNextPlayerChunk(void* outputBuffer, const cs::usec
return tp;
}
/*
2020-01-12 20-25-26 [Info] Chunk: 7 7 11 15 179 120
2020-01-12 20-25-27 [Info] Chunk: 6 6 8 15 212 122
2020-01-12 20-25-28 [Info] Chunk: 6 6 7 12 245 123
2020-01-12 20-25-29 [Info] Chunk: 5 6 6 9 279 117
2020-01-12 20-25-30 [Info] Chunk: 4 5 6 8 312 117
2020-01-12 20-25-30 [Error] Controller::onException: read_some: End of file
2020-01-12 20-25-30 [Error] Exception in Controller::worker(): read_some: End of file
2020-01-12 20-25-31 [Error] Exception in Controller::worker(): connect: Connection refused
2020-01-12 20-25-31 [Error] Error in socket shutdown: Transport endpoint is not connected
2020-01-12 20-25-32 [Error] Exception in Controller::worker(): connect: Connection refused
2020-01-12 20-25-32 [Error] Error in socket shutdown: Transport endpoint is not connected
^C2020-01-12 20-25-32 [Info] Received signal 2: Interrupt
2020-01-12 20-25-32 [Info] Stopping controller
2020-01-12 20-25-32 [Error] Error in socket shutdown: Bad file descriptor
2020-01-12 20-25-32 [Error] Exception: Invalid argument
2020-01-12 20-25-32 [Notice] daemon terminated.
=================================================================
==22383==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 5756 byte(s) in 1 object(s) allocated from:
#0 0x7f3d60635602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
#1 0x448fc2 in Stream::getNextPlayerChunk(void*, std::chrono::duration<long, std::ratio<1l, 1000000l> > const&, unsigned long, long)
/home/johannes/Develop/snapcast/client/stream.cpp:163
SUMMARY: AddressSanitizer: 5756 byte(s) leaked in 1 allocation(s).
*/
void Stream::updateBuffers(int age)
{
@ -350,14 +327,12 @@ bool Stream::getPlayerChunk(void* outputBuffer, const cs::usec& outputBufferDacT
return false;
}
if (!chunk_ && !chunks_.try_pop(chunk_, outputBufferDacTime))
if (!chunk_ && !chunks_.try_pop(chunk_))
{
LOG(INFO, LOG_TAG) << "no chunks available\n";
return false;
}
cs::nsec chunk_duration = cs::nsec(static_cast<cs::nsec::rep>(frames / format_.nsRate()));
/// we have a chunk
/// age = chunk age (server now - rec time: some positive value) - buffer (e.g. 1000ms) + time to DAC
/// age = 0 => play now
@ -368,6 +343,7 @@ bool Stream::getPlayerChunk(void* outputBuffer, const cs::usec& outputBufferDacT
{
if (hard_sync_)
{
cs::nsec chunk_duration = cs::nsec(static_cast<cs::nsec::rep>(frames / format_.nsRate()));
cs::usec age = std::chrono::duration_cast<cs::usec>(TimeProvider::serverNow() - chunk_->start()) - bufferMs_ + outputBufferDacTime;
// LOG(INFO, LOG_TAG) << "age: " << age.count() / 1000 << ", buffer: " << std::chrono::duration_cast<chrono::milliseconds>(chunk_duration).count()
// << "\n";
@ -384,18 +360,18 @@ bool Stream::getPlayerChunk(void* outputBuffer, const cs::usec& outputBufferDacT
if (age.count() > 0)
{
// age > 0: the top of the stream is too old. We must fast foward.
while (chunks_.try_pop(chunk_, 0ms))
while (chunks_.try_pop(chunk_))
{
age = std::chrono::duration_cast<cs::usec>(TimeProvider::serverNow() - chunk_->start()) - bufferMs_ + outputBufferDacTime;
LOG(DEBUG, LOG_TAG) << "age: " << age.count() / 1000
<< ", chunk_duration: " << -std::chrono::duration_cast<std::chrono::milliseconds>(chunk_duration).count()
<< ", duration: " << chunk_->duration<std::chrono::milliseconds>().count() << "\n";
if (age <= 0ms)
<< ", chunk_duration: " << -std::chrono::duration_cast<std::chrono::milliseconds>(chunk_duration).count()
<< ", duration: " << chunk_->duration<std::chrono::milliseconds>().count() << "\n";
if (age.count() <= 0)
break;
}
}
if (age.count() < 0)
if (age.count() <= 0)
{
// the oldest chunk (top of the stream) can be played in this iteration
// e.g. age = -20ms (=> should be played in 20ms)
@ -403,9 +379,9 @@ bool Stream::getPlayerChunk(void* outputBuffer, const cs::usec& outputBufferDacT
// and can play 30ms of the stream
size_t silent_frames = static_cast<size_t>(-chunk_->format.nsRate() * std::chrono::duration_cast<cs::nsec>(age).count());
LOG(DEBUG, LOG_TAG) << "Silent frames: " << silent_frames << ", frames: " << frames
<< ", age: " << std::chrono::duration_cast<cs::usec>(age).count() / 1000. << "\n";
<< ", age: " << std::chrono::duration_cast<cs::usec>(age).count() / 1000. << "\n";
getSilentPlayerChunk(outputBuffer, silent_frames);
getNextPlayerChunk((char*)outputBuffer + (chunk_->format.frameSize * silent_frames), 0ms, frames - silent_frames);
getNextPlayerChunk((char*)outputBuffer + (chunk_->format.frameSize * silent_frames), frames - silent_frames);
hard_sync_ = false;
resetBuffers();
@ -428,8 +404,8 @@ bool Stream::getPlayerChunk(void* outputBuffer, const cs::usec& outputBufferDacT
}
}
cs::usec age = std::chrono::duration_cast<cs::usec>(TimeProvider::serverNow() - getNextPlayerChunk(outputBuffer, 0ms, frames, framesCorrection) -
bufferMs_ + outputBufferDacTime);
cs::usec age = std::chrono::duration_cast<cs::usec>(TimeProvider::serverNow() - getNextPlayerChunk(outputBuffer, frames, framesCorrection) - bufferMs_ +
outputBufferDacTime);
setRealSampleRate(format_.rate);
// check if we need a hard sync

10
client/stream.hpp
View file

@ -56,12 +56,12 @@ public:
return format_;
}
bool waitForChunk(size_t ms) const;
bool waitForChunk(const std::chrono::milliseconds& timeout) const;
private:
chronos::time_point_clk getNextPlayerChunk(void* outputBuffer, const chronos::usec& timeout, unsigned long frames);
chronos::time_point_clk getNextPlayerChunk(void* outputBuffer, const chronos::usec& timeout, unsigned long frames, long framesCorrection);
chronos::time_point_clk getSilentPlayerChunk(void* outputBuffer, unsigned long frames);
chronos::time_point_clk getNextPlayerChunk(void* outputBuffer, unsigned long frames);
chronos::time_point_clk getNextPlayerChunk(void* outputBuffer, unsigned long frames, long framesCorrection);
void getSilentPlayerChunk(void* outputBuffer, unsigned long frames) const;
void updateBuffers(int age);
void resetBuffers();
@ -72,8 +72,8 @@ private:
Queue<std::shared_ptr<msg::PcmChunk>> chunks_;
DoubleBuffer<chronos::usec::rep> miniBuffer_;
DoubleBuffer<chronos::usec::rep> buffer_;
DoubleBuffer<chronos::usec::rep> shortBuffer_;
DoubleBuffer<chronos::usec::rep> buffer_;
std::shared_ptr<msg::PcmChunk> chunk_;
int median_;

16
common/queue.h
View file

@ -59,7 +59,7 @@ public:
cond_.notify_one();
}
bool wait_for(std::chrono::milliseconds timeout) const
bool wait_for(const std::chrono::microseconds& timeout) const
{
std::unique_lock<std::mutex> mlock(mutex_);
abort_ = false;
@ -69,12 +69,15 @@ public:
return !queue_.empty() && !abort_;
}
bool try_pop(T& item, std::chrono::microseconds timeout)
bool try_pop(T& item, const std::chrono::microseconds& timeout = std::chrono::microseconds(0))
{
std::unique_lock<std::mutex> mlock(mutex_);
abort_ = false;
if (!cond_.wait_for(mlock, timeout, [this] { return (!queue_.empty() || abort_); }))
return false;
if (timeout.count() > 0)
{
if (!cond_.wait_for(mlock, timeout, [this] { return (!queue_.empty() || abort_); }))
return false;
}
if (queue_.empty() || abort_)
return false;
@ -85,11 +88,6 @@ public:
return true;
}
bool try_pop(T& item, std::chrono::milliseconds timeout)
{
return try_pop(item, std::chrono::duration_cast<std::chrono::microseconds>(timeout));
}
void pop(T& item)
{
std::unique_lock<std::mutex> mlock(mutex_);