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this seems to improve audio a lot but I still hear some small crackles

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radius 2017-10-10 20:29:46 -05:00
parent 8d691563c7
commit 6f40885f73
1 changed files with 14 additions and 4 deletions
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18
libretro/libretro.c
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@ -95,8 +95,8 @@ static void GB_update_keys_status(GB_gameboy_t *gb)
static void audio_callback(void *gb) static void audio_callback(void *gb)
{ {
GB_apu_copy_buffer(gb, (GB_sample_t *) soundbuf, 735); GB_apu_copy_buffer(gb, (GB_sample_t *) soundbuf, (float)AUDIO_FREQUENCY / 59.72);
audio_batch_cb(soundbuf, 735); audio_batch_cb(soundbuf, (float)AUDIO_FREQUENCY / 59.72);
} }
@ -235,13 +235,22 @@ static void check_variables(void)
void retro_run(void) void retro_run(void)
{ {
static int frames;
size_t samples;
bool updated = false; bool updated = false;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
check_variables(); check_variables();
samples = GB_apu_get_current_buffer_length(&gb);
if (!(frames < (samples / 35112)))
{
GB_run_frame(&gb);
frames ++;
}
else
frames = 0;
GB_run_frame(&gb);
video_cb(frame_buf, VIDEO_WIDTH, VIDEO_HEIGHT, 0); video_cb(frame_buf, VIDEO_WIDTH, VIDEO_HEIGHT, 0);
} }
bool retro_load_game(const struct retro_game_info *info) bool retro_load_game(const struct retro_game_info *info)
@ -325,6 +334,7 @@ bool retro_load_game(const struct retro_game_info *info)
#endif #endif
GB_set_sample_rate(&gb, AUDIO_FREQUENCY); GB_set_sample_rate(&gb, AUDIO_FREQUENCY);
/* GB_set_highpass_filter_mode(&gb, GB_HIGHPASS_REMOVE_DC_OFFSET); */
return true; return true;
} }