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Refactor getNextPlayerChunk

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badaix 2020-02-01 23:26:02 +01:00
parent 71ed07a1d0
commit 4d4270dad5
1 changed files with 48 additions and 9 deletions
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57
client/stream.cpp
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@ -53,7 +53,7 @@ void Stream::setRealSampleRate(double sampleRate)
correctAfterXFrames_ = 0;
else
correctAfterXFrames_ = round((format_.rate / sampleRate) / (format_.rate / sampleRate - 1.));
// LOG(DEBUG) << "Correct after X: " << correctAfterXFrames_ << " (Real rate: " << sampleRate << ", rate: " << format_.rate << ")\n";
// LOG(DEBUG) << "Correct after X: " << correctAfterXFrames_ << " (Real rate: " << sampleRate << ", rate: " << format_.rate << ")\n";
}
@ -163,16 +163,55 @@ cs::time_point_clk Stream::getNextPlayerChunk(void* outputBuffer, const cs::usec
char* buffer = (char*)malloc(toRead * format_.frameSize);
cs::time_point_clk tp = getNextPlayerChunk(buffer, timeout, toRead);
float factor = (float)toRead / framesPerBuffer; //(float)(framesPerBuffer*channels_);
// if (abs(framesCorrection) > 1)
// LOG(INFO) << "correction: " << framesCorrection << ", factor: " << factor << "\n";
float idx = 0;
for (size_t n = 0; n < framesPerBuffer; ++n)
// float factor = (float)toRead / framesPerBuffer;
// if (abs(framesCorrection) > 1)
// LOG(INFO) << "correction: " << framesCorrection << ", factor: " << factor << "\n";
size_t slices = (abs(framesCorrection) + 1);
size_t pos = 0;
int idx = 0;
if (framesCorrection < 0)
{
size_t index(floor(idx)); // = (int)(ceil(n*factor));
memcpy((char*)outputBuffer + n * format_.frameSize, buffer + index * format_.frameSize, format_.frameSize);
idx += factor;
int size = framesPerBuffer / slices;
// LOG(TRACE) << "getNextPlayerChunk, frames: " << framesPerBuffer << ", correction: " << framesCorrection << " (" << toRead << "), slices: " << slices
// << "\n";
for (size_t n = 0; n < slices; ++n)
{
if (n + 1 == slices)
size = framesPerBuffer - pos;
// LOG(TRACE) << "slice: " << n << ", size: " << size << ", out pos: " << pos << ", source pos: " << pos + idx << "\n";
memcpy((char*)outputBuffer + pos * format_.frameSize, buffer + (pos + idx) * format_.frameSize, size * format_.frameSize);
pos += size;
idx -= 1;
}
}
else
{
int size = toRead / slices;
// LOG(TRACE) << "getNextPlayerChunk, frames: " << framesPerBuffer << ", correction: " << framesCorrection << " (" << toRead << "), slices: " << slices
// << "\n";
for (size_t n = 0; n < slices; ++n)
{
if (n + 1 == slices)
size = toRead - pos;
// LOG(TRACE) << "slice: " << n << ", size: " << size << ", out pos: " << pos + idx << ", source pos: " << pos << "\n";
memcpy((char*)outputBuffer + (pos + idx) * format_.frameSize, buffer + pos * format_.frameSize, size * format_.frameSize);
pos += size;
idx -= 1;
}
}
// float idx = 0;
// for (size_t n = 0; n < framesPerBuffer; ++n)
// {
// size_t index(floor(idx)); // = (int)(ceil(n*factor));
// memcpy((char*)outputBuffer + n * format_.frameSize, buffer + index * format_.frameSize, format_.frameSize);
// idx += factor;
// }
free(buffer);
return tp;