1 files changed, 24 insertions, 2 deletions
diff --git a/Userland/Libraries/LibAudio/FlacLoader.cpp b/Userland/Libraries/LibAudio/FlacLoader.cpp
index ab74865e27..baef59d7eb 100644
--- a/Userland/Libraries/LibAudio/FlacLoader.cpp
+++ b/Userland/Libraries/LibAudio/FlacLoader.cpp
@@ -118,13 +118,20 @@ MaybeLoaderError FlacLoaderPlugin::parse_header()
     md5_checksum.bytes().copy_to({ m_md5_checksum, sizeof(m_md5_checksum) });
 
     // Parse other blocks
-    // TODO: For a simple first implementation, all other blocks are skipped as allowed by the FLAC specification.
-    // Especially the SEEKTABLE block may become useful in a more sophisticated version.
     [[maybe_unused]] u16 meta_blocks_parsed = 1;
     [[maybe_unused]] u16 total_meta_blocks = meta_blocks_parsed;
     FlacRawMetadataBlock block = streaminfo;
     while (!block.is_last_block) {
         block = TRY(next_meta_block(*bit_input));
+        switch (block.type) {
+        case (FlacMetadataBlockType::SEEKTABLE):
+            TRY(load_seektable(block));
+            break;
+        default:
+            // TODO: Parse the remaining metadata block types.
+            //       Currently only STREAMINFO and SEEKTABLE are handled.
+            break;
+        }
         ++total_meta_blocks;
     }
 
@@ -133,6 +140,21 @@ MaybeLoaderError FlacLoaderPlugin::parse_header()
     return {};
 }
 
+MaybeLoaderError FlacLoaderPlugin::load_seektable(FlacRawMetadataBlock& block)
+{
+    auto memory_stream = LOADER_TRY(Core::Stream::MemoryStream::construct(block.data.bytes()));
+    auto seektable_bytes = LOADER_TRY(BigEndianInputBitStream::construct(*memory_stream));
+    for (size_t i = 0; i < block.length / 18; ++i) {
+        FlacSeekPoint seekpoint {
+            .sample_index = LOADER_TRY(seektable_bytes->read_bits<u64>(64)),
+            .byte_offset = LOADER_TRY(seektable_bytes->read_bits<u64>(64)),
+            .num_samples = LOADER_TRY(seektable_bytes->read_bits<u16>(16))
+        };
+        m_seektable.append(seekpoint);
+    }
+    return {};
+}
+
 ErrorOr<FlacRawMetadataBlock, LoaderError> FlacLoaderPlugin::next_meta_block(BigEndianInputBitStream& bit_input)
 {