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Improve FSB4 MPEG full loops [Deadpool (PS3)]
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@ -87,8 +87,10 @@ int mpeg_custom_setup_init_default(STREAMFILE* sf, off_t start_offset, mpeg_code
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//case MPEG_P3D: data->skip_samples = info.frame_samples; break; /* matches Radical ADPCM (PC) output */
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/* FSBs (with FMOD DLLs) don't seem to need it. Particularly a few games (all from Wayforward?)
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* contain audible garbage at the beginning, but it's actually there in-game too */
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//case MPEG_FSB: data->skip_samples = 0; break;
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* contain audible garbage at the beginning, but it's actually there in-game too.
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* Games doing full loops also must not have delay (reuses mpeg state on loop) */
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case MPEG_FSB:
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data->skip_samples = 0; break;
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case MPEG_XVAG: /* set in header and needed for gapless looping */
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data->skip_samples = data->config.skip_samples; break;
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@ -481,6 +481,8 @@ decode_fail:
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/* UTILS */
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/*********/
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static void flush_mpeg(mpeg_codec_data* data, int is_loop);
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void free_mpeg(mpeg_codec_data* data) {
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if (!data)
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return;
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@ -513,7 +515,7 @@ void free_mpeg(mpeg_codec_data* data) {
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void reset_mpeg(mpeg_codec_data* data) {
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if (!data) return;
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flush_mpeg(data);
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flush_mpeg(data, 0);
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#if 0
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/* flush_mpeg properly resets mpg123 with mpg123_open_feed, and
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@ -550,7 +552,7 @@ void seek_mpeg(VGMSTREAM* vgmstream, int32_t num_sample) {
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else {
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int i;
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flush_mpeg(data);
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flush_mpeg(data, 1);
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/* restart from 0 and manually discard samples, since we don't really know the correct offset */
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for (i = 0; i < data->streams_size; i++) {
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@ -566,7 +568,7 @@ void seek_mpeg(VGMSTREAM* vgmstream, int32_t num_sample) {
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}
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/* resets mpg123 decoder and its internals without seeking, useful when a new MPEG substream starts */
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void flush_mpeg(mpeg_codec_data* data) {
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static void flush_mpeg(mpeg_codec_data* data, int is_loop) {
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if (!data)
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return;
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@ -578,7 +580,10 @@ void flush_mpeg(mpeg_codec_data* data) {
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int i;
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/* re-start from 0 */
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for (i=0; i < data->streams_size; i++) {
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mpg123_open_feed(data->streams[i]->m);
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/* On loop FSB retains MDCT state so it mixes with next/loop frame (confirmed with recordings).
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* This only matters on full loops and if there is no encoder delay (since loops use discard right now) */
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if (is_loop && data->custom && !(data->type == MPEG_FSB))
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mpg123_open_feed(data->streams[i]->m);
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data->streams[i]->bytes_in_buffer = 0;
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data->streams[i]->buffer_full = 0;
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data->streams[i]->buffer_used = 0;
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