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optimizations

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5774 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
shatty
2003-12-28 00:04:54 +00:00
parent efbf8d83ed
commit 819b668c92
1 changed files with 4 additions and 5 deletions
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src/add-ons/media/plugins/vorbis/vorbisCodecPlugin.cpp
+4 -5
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@@ -184,18 +184,17 @@ vorbisDecoder::Decode(void *buffer, int64 *frameCount,
} }
// reduce samples to the amount of samples we will actually consume // reduce samples to the amount of samples we will actually consume
samples = min_c(samples,out_bytes_needed/fFrameSize); samples = min_c(samples,out_bytes_needed/fFrameSize);
int bytes = samples*fFrameSize;
for (int sample = 0; sample < samples ; sample++) { for (int sample = 0; sample < samples ; sample++) {
for (int channel = 0; channel < fInfo.channels; channel++) { for (int channel = 0; channel < fInfo.channels; channel++) {
memcpy(out_buffer,&pcm[channel][sample],sizeof(float)); *((float*)out_buffer) = pcm[channel][sample];
out_buffer += sizeof(float); out_buffer += sizeof(float);
out_bytes_needed -= sizeof(float);
} }
} }
out_bytes_needed -= samples * fInfo.channels * sizeof(float);
// report back how many samples we consumed // report back how many samples we consumed
vorbis_synthesis_read(&fDspState,samples); vorbis_synthesis_read(&fDspState,samples);
fStartTime += (1000000LL * (bytes / fFrameSize)) / fInfo.rate; fStartTime += (1000000LL * samples) / fInfo.rate;
//TRACE("vorbisDecoder: fStartTime inc'd to %.6f\n", fStartTime / 1000000.0); //TRACE("vorbisDecoder: fStartTime inc'd to %.6f\n", fStartTime / 1000000.0);
} }
*frameCount = (fOutputBufferSize - out_bytes_needed) / fFrameSize; *frameCount = (fOutputBufferSize - out_bytes_needed) / fFrameSize;