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Query the Decoder instead of the current OpenAL buffer when getting the sample rate for calculations in streaming audio Sources.

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Some OpenAL implementations return 0 for alGetSourcei(source, AL_BUFFER) if the source isn't static, which eventually results in returning 0 when querying the buffer's sample rate.
This commit is contained in:
Alex Szpakowski
2014-05-02 11:31:12 -03:00
parent 1bc8b7346d
commit d7f1262e20
1 changed files with 4 additions and 19 deletions
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src/modules/audio/openal/Source.cpp
+4 -19
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@@ -255,10 +255,7 @@ bool Source::update()
alGetSourcef(source, AL_SAMPLE_OFFSET, &curOffsetSamples);
ALint b;
alGetSourcei(source, AL_BUFFER, &b);
int freq;
alGetBufferi(b, AL_FREQUENCY, &freq);
int freq = decoder->getSampleRate();
curOffsetSecs = curOffsetSamples / freq;
// Get a free buffer.
@@ -334,11 +331,7 @@ void Source::seekAtomic(float offset, void *unit)
if (type == TYPE_STREAM)
{
offsetSamples = offset;
ALint buffer;
alGetSourcei(source, AL_BUFFER, &buffer);
int freq;
alGetBufferi(buffer, AL_FREQUENCY, &freq);
offset /= freq;
offset /= decoder->getSampleRate();
offsetSeconds = offset;
decoder->seek(offset);
}
@@ -353,11 +346,7 @@ void Source::seekAtomic(float offset, void *unit)
{
offsetSeconds = offset;
decoder->seek(offset);
ALint buffer;
alGetSourcei(source, AL_BUFFER, &buffer);
int freq;
alGetBufferi(buffer, AL_FREQUENCY, &freq);
offsetSamples = offset*freq;
offsetSamples = offset * decoder->getSampleRate();
}
else
{
@@ -399,11 +388,7 @@ float Source::tellAtomic(void *unit) const
default:
{
alGetSourcef(source, AL_SAMPLE_OFFSET, &offset);
ALint buffer;
alGetSourcei(source, AL_BUFFER, &buffer);
int freq;
alGetBufferi(buffer, AL_FREQUENCY, &freq);
offset /= freq;
offset /= decoder->getSampleRate();
if (type == TYPE_STREAM) offset += offsetSeconds;
}
break;