From a112e2f8c5e5104328b84ee238458b5c676c0c12 Mon Sep 17 00:00:00 2001
From: Zaggy1024 <zaggy1024@gmail.com>
Date: Thu, 3 Aug 2023 16:00:37 -0500
Subject: [PATCH] LibAudio: Add a seek point at the first sample in MP3Loader

A previous commit made it so that SeekTable doesn't provide a seek
point from `seek_point_before()` if there is not a seek point before
the requested sample index. However, MP3Loader was only setting a seek
point after the first 10 frames, meaning that it would do nothing when
seeking back to 0.

To fix this, add a seek point at byte 0 for the first sample, so that
`seek_point_before()` will never fail.
---
 Userland/Libraries/LibAudio/MP3Loader.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Userland/Libraries/LibAudio/MP3Loader.cpp b/Userland/Libraries/LibAudio/MP3Loader.cpp
index 33d7ce5dc8..0d22d2417a 100644
--- a/Userland/Libraries/LibAudio/MP3Loader.cpp
+++ b/Userland/Libraries/LibAudio/MP3Loader.cpp
@@ -146,6 +146,7 @@ MaybeLoaderError MP3LoaderPlugin::build_seek_table()
     int sample_count = 0;
     size_t frame_count = 0;
     m_seek_table = {};
+    TRY(m_seek_table.insert_seek_point({ 0, 0 }));
 
     m_bitstream->align_to_byte_boundary();