From 4dd58d248e96dc3628c4737fc4a4547db12477fd Mon Sep 17 00:00:00 2001
From: walkawayy <81546780+walkawayy@users.noreply.github.com>
Date: Wed, 19 Jul 2023 21:35:50 -0400
Subject: [PATCH] wip: timestamp properly saved, still doesn't seek on load

---
 src/game/savegame/savegame_bson.c |  3 +++
 src/specific/s_audio_stream.c     | 17 ++++++++++-------
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/src/game/savegame/savegame_bson.c b/src/game/savegame/savegame_bson.c
index 4178d45fd..8e3283bfe 100644
--- a/src/game/savegame/savegame_bson.c
+++ b/src/game/savegame/savegame_bson.c
@@ -1229,6 +1229,7 @@ bool Savegame_BSON_LoadFromFile(MYFILE *fp, GAME_INFO *game_info)
     LOG_DEBUG("music_timestamp2 %d", timestamp_arr[1]);
     int64_t load_timestamp = *(int64_t *)timestamp_arr;
     LOG_DEBUG("load_timestamp %d", load_timestamp);
+    LOG_DEBUG("load_track %d", load_track);
 
     if (load_track) {
         Music_Play(load_track);
@@ -1311,8 +1312,10 @@ void Savegame_BSON_SaveToFile(MYFILE *fp, GAME_INFO *game_info)
     int64_t *timestamp_arr = (int64_t *)&save_timestamp;
     json_object_append_int(root_obj, "music_timestamp1", timestamp_arr[0]);
     json_object_append_int(root_obj, "music_timestamp2", timestamp_arr[1]);
+    LOG_DEBUG("save_timestamp %d", save_timestamp);
     LOG_DEBUG("music_timestamp1 %d", timestamp_arr[0]);
     LOG_DEBUG("music_timestamp2 %d", timestamp_arr[1]);
+    LOG_DEBUG("save_track %d", save_track);
 
     struct json_value_s *root = json_value_from_object(root_obj);
     SaveGame_BSON_SaveRaw(fp, root, SAVEGAME_CURRENT_VERSION);
diff --git a/src/specific/s_audio_stream.c b/src/specific/s_audio_stream.c
index b9ce5b9d4..03e771758 100644
--- a/src/specific/s_audio_stream.c
+++ b/src/specific/s_audio_stream.c
@@ -31,6 +31,7 @@ typedef struct AUDIO_STREAM_SOUND {
     bool is_read_done;
     bool is_looped;
     float volume;
+    int64_t timestamp;
 
     void (*finish_callback)(int sound_id, void *user_data);
     void *finish_callback_user_data;
@@ -139,6 +140,8 @@ static bool S_Audio_StreamSoundEnqueueFrame(AUDIO_STREAM_SOUND *stream)
             break;
         }
 
+        stream->timestamp = stream->av.frame->best_effort_timestamp;
+        LOG_DEBUG("Enqueue timestamp: %d.", stream->timestamp);
         av_frame_unref(stream->av.frame);
     }
 
@@ -240,6 +243,7 @@ static bool S_Audio_StreamSoundInitialiseFromPath(
     stream->is_playing = true;
     stream->is_looped = false;
     stream->volume = 1.0f;
+    stream->timestamp = 0;
     stream->finish_callback = NULL;
 
     stream->sdl.stream = SDL_NewAudioStream(
@@ -277,6 +281,7 @@ void S_Audio_StreamSoundInit(void)
         stream->is_playing = false;
         stream->is_read_done = true;
         stream->volume = 0.0f;
+        stream->timestamp = 0;
         stream->sdl.stream = NULL;
         stream->finish_callback = NULL;
     }
@@ -390,6 +395,7 @@ bool S_Audio_StreamSoundClose(int sound_id)
     stream->is_playing = false;
     stream->is_looped = false;
     stream->volume = 0.0f;
+    stream->timestamp = 0;
     SDL_UnlockAudioDevice(g_AudioDeviceID);
 
     if (stream->finish_callback) {
@@ -528,13 +534,9 @@ int64_t S_Audio_StreamGetTimestamp(int sound_id)
         LOG_DEBUG("Getting timestamp for sound_id %d.", sound_id);
         SDL_LockAudioDevice(g_AudioDeviceID);
         AUDIO_STREAM_SOUND *stream = &m_StreamSounds[sound_id];
-        int64_t timestamp = 0;
-        int ret = avcodec_receive_frame(stream->av.codec_ctx, stream->av.frame);
-        if (ret >= 0) {
-            timestamp = stream->av.frame->best_effort_timestamp;
-        }
-        SDL_UnlockAudioDevice(g_AudioDeviceID);
+        int64_t timestamp = stream->timestamp;
         LOG_DEBUG("Timestamp: %d.", timestamp);
+        SDL_UnlockAudioDevice(g_AudioDeviceID);
         return timestamp;
     }
 
@@ -549,10 +551,11 @@ bool S_Audio_StreamSeekTimestamp(int sound_id, int64_t timestamp)
     }
 
     if (m_StreamSounds[sound_id].is_playing) {
-        LOG_DEBUG("Seeking timestamp on sound_id %d.", sound_id);
+        LOG_DEBUG("Seeking timestamp %d on sound_id %d.", timestamp, sound_id);
         SDL_LockAudioDevice(g_AudioDeviceID);
         AUDIO_STREAM_SOUND *stream = &m_StreamSounds[sound_id];
         av_seek_frame(stream->av.format_ctx, -1, timestamp, AVSEEK_FLAG_ANY);
+        avcodec_flush_buffers(stream->av.codec_ctx); // ?
         SDL_UnlockAudioDevice(g_AudioDeviceID);
         return true;
     }