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pcm/ConfiguredResampler: convert boolean flag to enum

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Prepare for adding more resamplers.
This commit is contained in:
Max Kellermann 2013-12-01 13:11:19 +01:00
parent a698cc8112
commit 3ed80f3139
1 changed files with 31 additions and 13 deletions
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44
src/pcm/ConfiguredResampler.cxx
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@ -20,44 +20,62 @@
#include "config.h"
#include "ConfiguredResampler.hxx"
#include "FallbackResampler.hxx"
#include "ConfigGlobal.hxx"
#include "ConfigOption.hxx"
#include "ConfigError.hxx"
#include "util/Error.hxx"
#ifdef HAVE_LIBSAMPLERATE
#include "LibsamplerateResampler.hxx"
#include "ConfigGlobal.hxx"
#include "ConfigOption.hxx"
#endif
#include <string.h>
enum class SelectedResampler {
FALLBACK,
#ifdef HAVE_LIBSAMPLERATE
static bool lsr_enabled;
LIBSAMPLERATE,
#endif
};
static SelectedResampler selected_resampler = SelectedResampler::FALLBACK;
bool
pcm_resampler_global_init(Error &error)
{
#ifdef HAVE_LIBSAMPLERATE
const char *converter =
config_get_string(CONF_SAMPLERATE_CONVERTER, "");
lsr_enabled = strcmp(converter, "internal") != 0;
if (lsr_enabled)
return pcm_resample_lsr_global_init(converter, error);
else
if (strcmp(converter, "internal") == 0)
return true;
#else
(void)error;
return true;
#ifdef HAVE_LIBSAMPLERATE
selected_resampler = SelectedResampler::LIBSAMPLERATE;
return pcm_resample_lsr_global_init(converter, error);
#endif
if (*converter == 0)
return true;
error.Format(config_domain,
"The samplerate_converter '%s' is not available",
converter);
return false;
}
PcmResampler *
pcm_resampler_create()
{
switch (selected_resampler) {
case SelectedResampler::FALLBACK:
return new FallbackPcmResampler();
#ifdef HAVE_LIBSAMPLERATE
if (lsr_enabled)
case SelectedResampler::LIBSAMPLERATE:
return new LibsampleratePcmResampler();
#endif
}
return new FallbackPcmResampler();
gcc_unreachable();
}