Using an AIFF file as input, I am unable to sample_seekg to the last sample in the file. If, however, I read the file sequentially using the extraction operator, I can read all samples in the file (including the last one). I tested this on 7e2de4b043f37a3833464c897e68a8fc3ca107d5.
The following example shows the issue:
auto in = audio::ifstream{getSamplePath("sample.aif")};
const auto inputSampleCount =
static_cast<int>(in.seekg(0, std::ios::end).sample_tellg());
float value;
if (in.sample_seekg(inputSampleCount - 1) >> value)
{
// this code is never executed
}
My expectation would have been to be able to sample_seekg to all samples in the file, understanding its argument as an index from zero to inputSampleCount - 1.
Consider the following code, using the same input as above:
auto in = audio::ifstream{getSamplePath("sample.aif")};
const auto inputSampleCount =
static_cast<int>(in.seekg(0, std::ios::end).sample_tellg());
auto readCount = 0;
float value;
in.seekg(0, std::ios::beg);
while (in >> value)
{
++readCount;
}
At the end of the execution, readCount == inputSampleCount (as expected).
Furthermore, consider the following example in which each sample is sample_seekg to individually:
auto in = audio::ifstream{getSamplePath("sample.aif")};
const auto inputSampleCount =
static_cast<int>(in.seekg(0, std::ios::end).sample_tellg());
auto readCount = 0;
float value;
in.seekg(0, std::ios::beg);
while (in.sample_seekg(readCount) >> value)
{
++readCount;
if (readCount == inputSampleCount)
{
break;
}
}
At the end of the execution, readCount == inputSampleCount - 1, which is not what I expected (I expected readCount == inputSampleCount).
Using an AIFF file as input, I am unable to
sample_seekgto the last sample in the file. If, however, I read the file sequentially using the extraction operator, I can read all samples in the file (including the last one). I tested this on 7e2de4b043f37a3833464c897e68a8fc3ca107d5.The following example shows the issue:
My expectation would have been to be able to
sample_seekgto all samples in the file, understanding its argument as an index from zero toinputSampleCount - 1.Consider the following code, using the same input as above:
At the end of the execution,
readCount == inputSampleCount(as expected).Furthermore, consider the following example in which each sample is
sample_seekgto individually:At the end of the execution,
readCount == inputSampleCount - 1, which is not what I expected (I expectedreadCount == inputSampleCount).Am I understanding the API incorrectly here?