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LibAudio: Switch LoaderPlugin to a more traditional constructor pattern

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This now prepares all the needed (fallible) components before actually
constructing a LoaderPlugin object, so we are no longer filling them in
at an arbitrary later point in time.
This commit is contained in:
Tim Schumacher 2022-12-05 00:41:23 +01:00 • committed by Andreas Kling
parent 3cf93d0dd2
commit c57be0f474
12 changed files with 132 additions and 86 deletions
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8
Userland/Libraries/LibAudio/MP3Loader.h
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@ -23,11 +23,12 @@ struct ScaleFactorBand;
class MP3LoaderPlugin : public LoaderPlugin {
public:
explicit MP3LoaderPlugin(StringView path);
explicit MP3LoaderPlugin(Bytes buffer);
explicit MP3LoaderPlugin(OwnPtr<Core::Stream::SeekableStream> stream);
virtual ~MP3LoaderPlugin() = default;
virtual MaybeLoaderError initialize() override;
static Result<NonnullOwnPtr<MP3LoaderPlugin>, LoaderError> try_create(StringView path);
static Result<NonnullOwnPtr<MP3LoaderPlugin>, LoaderError> try_create(Bytes buffer);
virtual LoaderSamples get_more_samples(size_t max_bytes_to_read_from_input = 128 * KiB) override;
virtual MaybeLoaderError reset() override;
@ -41,6 +42,7 @@ public:
virtual String format_name() override { return "MP3 (.mp3)"; }
private:
MaybeLoaderError initialize();
MaybeLoaderError synchronize();
MaybeLoaderError build_seek_table();
ErrorOr<MP3::Header, LoaderError> read_header();