From d41d85766fac0ef1e8b6ac356e0aaffc67fd2a0e Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Thu, 7 Mar 2019 05:35:49 -0500
Subject: service/audio/hwopus: Move Opus packet header out of the
 IHardwareOpusDecoderManager

This will be utilized by more than just that class in the future. This
also renames it from OpusHeader to OpusPacketHeader to be more specific
about what kind of header it is.
---
 src/core/hle/service/audio/hwopus.cpp | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/src/core/hle/service/audio/hwopus.cpp b/src/core/hle/service/audio/hwopus.cpp
index 00a4b9d53..61af2e6d6 100644
--- a/src/core/hle/service/audio/hwopus.cpp
+++ b/src/core/hle/service/audio/hwopus.cpp
@@ -23,6 +23,12 @@ struct OpusDeleter {
     }
 };
 
+struct OpusPacketHeader {
+    u32_be size;
+    INSERT_PADDING_WORDS(1);
+};
+static_assert(sizeof(OpusPacketHeader) == 0x8, "OpusHeader is an invalid size");
+
 class IHardwareOpusDecoderManager final : public ServiceFramework<IHardwareOpusDecoderManager> {
 public:
     IHardwareOpusDecoderManager(std::unique_ptr<OpusDecoder, OpusDeleter> decoder, u32 sample_rate,
@@ -113,23 +119,23 @@ private:
                                    std::vector<opus_int16>& output, u64* out_performance_time) {
         const auto start_time = std::chrono::high_resolution_clock::now();
         const std::size_t raw_output_sz = output.size() * sizeof(opus_int16);
-        if (sizeof(OpusHeader) > input.size()) {
+        if (sizeof(OpusPacketHeader) > input.size()) {
             LOG_ERROR(Audio, "Input is smaller than the header size, header_sz={}, input_sz={}",
-                      sizeof(OpusHeader), input.size());
+                      sizeof(OpusPacketHeader), input.size());
             return false;
         }
 
-        OpusHeader hdr{};
-        std::memcpy(&hdr, input.data(), sizeof(OpusHeader));
-        if (sizeof(OpusHeader) + static_cast<u32>(hdr.sz) > input.size()) {
+        OpusPacketHeader hdr{};
+        std::memcpy(&hdr, input.data(), sizeof(OpusPacketHeader));
+        if (sizeof(OpusPacketHeader) + static_cast<u32>(hdr.size) > input.size()) {
             LOG_ERROR(Audio, "Input does not fit in the opus header size. data_sz={}, input_sz={}",
-                      sizeof(OpusHeader) + static_cast<u32>(hdr.sz), input.size());
+                      sizeof(OpusPacketHeader) + static_cast<u32>(hdr.size), input.size());
             return false;
         }
 
-        const auto frame = input.data() + sizeof(OpusHeader);
+        const auto frame = input.data() + sizeof(OpusPacketHeader);
         const auto decoded_sample_count = opus_packet_get_nb_samples(
-            frame, static_cast<opus_int32>(input.size() - sizeof(OpusHeader)),
+            frame, static_cast<opus_int32>(input.size() - sizeof(OpusPacketHeader)),
             static_cast<opus_int32>(sample_rate));
         if (decoded_sample_count * channel_count * sizeof(u16) > raw_output_sz) {
             LOG_ERROR(
@@ -141,18 +147,18 @@ private:
 
         const int frame_size = (static_cast<int>(raw_output_sz / sizeof(s16) / channel_count));
         const auto out_sample_count =
-            opus_decode(decoder.get(), frame, hdr.sz, output.data(), frame_size, 0);
+            opus_decode(decoder.get(), frame, hdr.size, output.data(), frame_size, 0);
         if (out_sample_count < 0) {
             LOG_ERROR(Audio,
                       "Incorrect sample count received from opus_decode, "
                       "output_sample_count={}, frame_size={}, data_sz_from_hdr={}",
-                      out_sample_count, frame_size, static_cast<u32>(hdr.sz));
+                      out_sample_count, frame_size, static_cast<u32>(hdr.size));
             return false;
         }
 
         const auto end_time = std::chrono::high_resolution_clock::now() - start_time;
         sample_count = out_sample_count;
-        consumed = static_cast<u32>(sizeof(OpusHeader) + hdr.sz);
+        consumed = static_cast<u32>(sizeof(OpusPacketHeader) + hdr.size);
         if (out_performance_time != nullptr) {
             *out_performance_time =
                 std::chrono::duration_cast<std::chrono::milliseconds>(end_time).count();
@@ -167,12 +173,6 @@ private:
         opus_decoder_ctl(decoder.get(), OPUS_RESET_STATE);
     }
 
-    struct OpusHeader {
-        u32_be sz; // Needs to be BE for some odd reason
-        INSERT_PADDING_WORDS(1);
-    };
-    static_assert(sizeof(OpusHeader) == 0x8, "OpusHeader is an invalid size");
-
     std::unique_ptr<OpusDecoder, OpusDeleter> decoder;
     u32 sample_rate;
     u32 channel_count;
-- 
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