Add vorbis support whilst we're here

1 files changed, 58 insertions, 0 deletions

diff --git a/src/codecs/include/vorbis.hpp b/src/codecs/include/vorbis.hpp
new file mode 100644
index 00000000..2804bb7c
--- /dev/null
+++ b/src/codecs/include/vorbis.hpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+#include <memory>
+#include <optional>
+#include <string>
+#include <utility>
+
+#include "ivorbisfile.h"
+#include "ogg.hpp"
+#include "ogg/ogg.h"
+#include "opus.h"
+#include "sample.hpp"
+#include "span.hpp"
+
+#include "codec.hpp"
+
+namespace codecs {
+
+class TremorVorbisDecoder : public ICodec {
+ public:
+  TremorVorbisDecoder();
+  ~TremorVorbisDecoder();
+
+  /*
+   * Returns the output format for the next frame in the stream. MP3 streams
+   * may represent multiple distinct tracks, with different bitrates, and so we
+   * handle the stream only on a frame-by-frame basis.
+   */
+  auto BeginStream(cpp::span<const std::byte>) -> Result<OutputFormat> override;
+
+  /*
+   * Writes samples for the current frame.
+   */
+  auto ContinueStream(cpp::span<const std::byte> input,
+                      cpp::span<sample::Sample> output)
+      -> Result<OutputInfo> override;
+
+  auto SeekStream(cpp::span<const std::byte> input, std::size_t target_sample)
+      -> Result<void> override;
+
+  auto ReadCallback() -> cpp::span<const std::byte>;
+  auto AfterReadCallback(size_t bytes_read) -> void;
+
+ private:
+  OggVorbis_File vorbis_;
+  cpp::span<const std::byte> input_;
+  size_t pos_in_input_;
+};
+
+}  // namespace codecs