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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
commit c57be0f474
Notes: sideshowbarker 2024-07-17 03:43:33 +09:00
12 changed files with 132 additions and 86 deletions
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7
Userland/Libraries/LibAudio/FlacLoader.h
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@ -47,11 +47,11 @@ ALWAYS_INLINE ErrorOr<i32> decode_unsigned_exp_golomb(u8 order, BigEndianInputBi
// https://datatracker.ietf.org/doc/html/draft-ietf-cellar-flac-03 (newer IETF draft that uses incompatible numberings and names)
class FlacLoaderPlugin : public LoaderPlugin {
public:
explicit FlacLoaderPlugin(StringView path);
explicit FlacLoaderPlugin(Bytes buffer);
explicit FlacLoaderPlugin(OwnPtr<Core::Stream::SeekableStream> stream);
virtual ~FlacLoaderPlugin() override = default;
virtual MaybeLoaderError initialize() override;
static Result<NonnullOwnPtr<FlacLoaderPlugin>, LoaderError> try_create(StringView path);
static Result<NonnullOwnPtr<FlacLoaderPlugin>, LoaderError> try_create(Bytes buffer);
virtual LoaderSamples get_more_samples(size_t max_bytes_to_read_from_input = 128 * KiB) override;
@ -69,6 +69,7 @@ public:
bool sample_count_unknown() const { return m_total_samples == 0; }
private:
MaybeLoaderError initialize();
MaybeLoaderError parse_header();
// Either returns the metadata block or sets error message.
// Additionally, increments m_data_start_location past the read meta block.