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git-svn-id: svn://elaine/murooma/trunk@69 d8a302eb-03bc-478d-80e4-98257eca68ef
This commit is contained in:
(no author) 2014-07-05 11:19:29 +00:00
parent 224ee53a5a
commit 071405049e
3 changed files with 167 additions and 60 deletions
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6
client.cpp
View file

@ -29,12 +29,6 @@ void player()
}
void sleepMs(int ms)
{
if (ms > 0)
usleep(ms * 1000);
}
Stream* stream;

179
stream.h
View file

@ -32,9 +32,11 @@ public:
cv.notify_all();
}
std::vector<short> getChunk(double outputBufferDacTime, unsigned long framesPerBuffer)
{
while (1)
{
Chunk* chunk = NULL;
if (chunks.empty())
@ -43,32 +45,22 @@ public:
int age(0);
int chunkCount(0);
mutex.lock();
while (!chunks.empty())
{
chunk = chunks.front();
age = getAge(*chunk) + outputBufferDacTime*1000 - bufferMs;
if ((age > 500) || (shortMedian > 100) || (median > WIRE_CHUNK_MS))
{
std::cerr << "age > WIRE_CHUNK_MS (" << age << " ms)\n";
delete chunk;
chunk = NULL;
chunks.pop_front();
pBuffer->clear();
pShortBuffer->clear();
usleep(10);
shortMedian -= WIRE_CHUNK_MS;
median -= WIRE_CHUNK_MS;
}
else
break;
}
chunkCount = chunks.size();
mutex.unlock();
if (chunk == NULL)
age = getAge(*chunk) + outputBufferDacTime*1000 - bufferMs;
if (age < -500)
{
std::cerr << "no chunks available\n";
continue;
std::vector<short> v;
if (skip < 0)
{
++skip;
std::cerr << "chunk too new, sleeping\n";//age > WIRE_CHUNK_MS (" << age << " ms)\n";
for (size_t n=0; n<(size_t)PLAYER_CHUNK_SIZE; ++n)
v.push_back(chunk->payload[n]);
return v;
}
}
pBuffer->add(age);
@ -76,24 +68,34 @@ public:
time_t now = time(NULL);
if (skip == 0)
{
if (now != lastUpdate)
{
lastUpdate = now;
if (pBuffer->full())
median = pBuffer->median();
else
median = 0;
if (pShortBuffer->full())
shortMedian = pShortBuffer->median();
else
shortMedian = 0;
if (abs(age) > 500)
skip = age / PLAYER_CHUNK_SIZE;
if (pShortBuffer->full() && (abs(shortMedian) > WIRE_CHUNK_MS))
skip = shortMedian / PLAYER_CHUNK_SIZE;
if (pBuffer->full() && (abs(median) > WIRE_CHUNK_MS))
skip = median / PLAYER_CHUNK_SIZE;
}
std::cerr << "Chunk: " << age << /*" \tidx: " << chunk->idx <<*/ "\t" << shortMedian << "\t" << median << "\t" << pBuffer->size() << "\t" << chunkCount << "\t" << outputBufferDacTime*1000 << "\n";
}
std::vector<short> v;
for (size_t n=chunk->idx; n<chunk->idx + PLAYER_CHUNK_SIZE; ++n)
if (skip < 0)
{
++skip;
std::cerr << "chunk too new, sleeping\n";//age > WIRE_CHUNK_MS (" << age << " ms)\n";
for (size_t n=0; n<(size_t)PLAYER_CHUNK_SIZE; ++n)
v.push_back(chunk->payload[n]);
return v;
}
for (size_t n=chunk->idx; n<chunk->idx + (size_t)PLAYER_CHUNK_SIZE; ++n)
{
v.push_back(chunk->payload[n]);
}
@ -110,6 +112,110 @@ public:
return v;
}
}
/*
std::vector<short> getChunk(double outputBufferDacTime, unsigned long framesPerBuffer)
{
while (1)
{
Chunk* chunk = NULL;
if (chunks.empty())
cv.wait(*pLock);
int age(0);
int chunkCount(0);
mutex.lock();
chunk = chunks.front();
while (!chunks.empty())
{
chunk = chunks.front();
if (skip != 0)
{
pBuffer->clear();
pShortBuffer->clear();
shortMedian = 0;
median = 0;
}
if (skip > 0)
{
--skip;
std::cerr << "chunk too old, skipping\n";//age > WIRE_CHUNK_MS (" << age << " ms)\n";
delete chunk;
chunk = NULL;
chunks.pop_front();
}
else
break;
}
chunkCount = chunks.size();
mutex.unlock();
if (chunk == NULL)
{
std::cerr << "no chunks available\n";
continue;
}
age = getAge(*chunk) + outputBufferDacTime*1000 - bufferMs;
pBuffer->add(age);
pShortBuffer->add(age);
time_t now = time(NULL);
if (skip == 0)
{
if (now != lastUpdate)
{
lastUpdate = now;
median = pBuffer->median();
shortMedian = pShortBuffer->median();
if (abs(age) > 500)
skip = age / PLAYER_CHUNK_SIZE;
if (pShortBuffer->full() && (abs(shortMedian) > WIRE_CHUNK_MS))
skip = shortMedian / PLAYER_CHUNK_SIZE;
if (pBuffer->full() && (abs(median) > WIRE_CHUNK_MS))
skip = median / PLAYER_CHUNK_SIZE;
}
std::cerr << "Chunk: " << age << "\t" << shortMedian << "\t" << median << "\t" << pBuffer->size() << "\t" << chunkCount << "\t" << outputBufferDacTime*1000 << "\n";
}
std::vector<short> v;
if (skip < 0)
{
++skip;
std::cerr << "chunk too new, sleeping\n";//age > WIRE_CHUNK_MS (" << age << " ms)\n";
for (size_t n=0; n<(size_t)PLAYER_CHUNK_SIZE; ++n)
v.push_back(chunk->payload[n]);
return v;
}
for (size_t n=chunk->idx; n<chunk->idx + (size_t)PLAYER_CHUNK_SIZE; ++n)
{
v.push_back(chunk->payload[n]);
}
//std::cerr << "before: " << chunkTime(*chunk) << ", after: ";
addMs(*chunk, -PLAYER_CHUNK_MS);
//std::cerr << chunkTime(*chunk) << "\n";
chunk->idx += PLAYER_CHUNK_SIZE;
if (chunk->idx >= WIRE_CHUNK_SIZE)
{
//std::cerr << "Chunk played out, deleting\n";
chunks.pop_front();
delete chunk;
}
return v;
}
}
*/
/*
std::cerr << "age: " << getAge(*chunk) << "\t" << age << "\t" << pBuffer->size() << "\t" << chunkCount << "\n";
pBuffer->add(age);
@ -183,6 +289,13 @@ public:
*/
private:
void sleepMs(int ms)
{
if (ms > 0)
usleep(ms * 1000);
}
std::deque<Chunk*> chunks;
std::mutex mtx;
std::mutex mutex;

4
timeUtils.h
View file

@ -26,7 +26,7 @@ std::string chunkTime(const T& chunk)
}
int diff_ms(const timeval& t1, const timeval& t2)
long diff_ms(const timeval& t1, const timeval& t2)
{
return (((t1.tv_sec - t2.tv_sec) * 1000000) +
(t1.tv_usec - t2.tv_usec))/1000;
@ -34,7 +34,7 @@ int diff_ms(const timeval& t1, const timeval& t2)
template <typename T>
int getAge(const T& chunk)
long getAge(const T& chunk)
{
timeval now;
gettimeofday(&now, NULL);