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pcm/FormatConverter: move check to Open()

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Report unsupported format while opening the filter, not later when the
first conversion takes place.
This commit is contained in:
Max Kellermann 2014-10-23 22:13:08 +02:00
parent 200cdb6b0a
commit 8ce48d83eb
1 changed files with 24 additions and 10 deletions
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34
src/pcm/FormatConverter.cxx
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@ -28,11 +28,31 @@
bool
PcmFormatConverter::Open(SampleFormat _src_format, SampleFormat _dest_format,
gcc_unused Error &error)
Error &error)
{
assert(_src_format != SampleFormat::UNDEFINED);
assert(_dest_format != SampleFormat::UNDEFINED);
switch (_dest_format) {
case SampleFormat::UNDEFINED:
assert(false);
gcc_unreachable();
case SampleFormat::S8:
case SampleFormat::DSD:
error.Format(pcm_domain,
"PCM conversion from %s to %s is not implemented",
sample_format_to_string(_src_format),
sample_format_to_string(_dest_format));
return nullptr;
case SampleFormat::S16:
case SampleFormat::S24_P32:
case SampleFormat::S32:
case SampleFormat::FLOAT:
break;
}
src_format = _src_format;
dest_format = _dest_format;
return true;
@ -48,20 +68,14 @@ PcmFormatConverter::Close()
}
ConstBuffer<void>
PcmFormatConverter::Convert(ConstBuffer<void> src, Error &error)
PcmFormatConverter::Convert(ConstBuffer<void> src, gcc_unused Error &error)
{
switch (dest_format) {
case SampleFormat::UNDEFINED:
assert(false);
gcc_unreachable();
case SampleFormat::S8:
case SampleFormat::DSD:
error.Format(pcm_domain,
"PCM conversion from %s to %s is not implemented",
sample_format_to_string(src_format),
sample_format_to_string(dest_format));
return nullptr;
assert(false);
gcc_unreachable();
case SampleFormat::S16:
return pcm_convert_to_16(buffer, dither,