Cool_Tools/vgmstream
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cleanup: misc preparations

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bnnm 2024-07-25 11:19:00 +02:00
parent a6a113d813
commit 6d1a4bfc03
2 changed files with 117 additions and 84 deletions
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190
src/vgmstream.c
View File

@ -6,7 +6,7 @@
#include <string.h>
#include <math.h>
#include "vgmstream.h"
#include "meta/meta.h"
#include "vgmstream_init.h"
#include "layout/layout.h"
#include "coding/coding.h"
#include "base/decode.h"
@ -17,7 +17,7 @@
typedef VGMSTREAM* (*init_vgmstream_t)(STREAMFILE*);
static void try_dual_file_stereo(VGMSTREAM* opened_vgmstream, STREAMFILE* sf, init_vgmstream_t init_vgmstream_function);
static void try_dual_file_stereo(VGMSTREAM* opened_vgmstream, STREAMFILE* sf, int format_id);
/* list of metadata parser functions that will recognize files, used on init */
init_vgmstream_t init_vgmstream_functions[] = {
@ -582,8 +582,7 @@ static const int init_vgmstream_count = LOCAL_ARRAY_LENGTH(init_vgmstream_functi
/* INIT/META */
/*****************************************************************************/
/* internal version with all parameters */
static VGMSTREAM* init_vgmstream_internal(STREAMFILE* sf) {
VGMSTREAM* detect_vgmstream_format(STREAMFILE* sf) {
if (!sf)
return NULL;
@ -591,91 +590,20 @@ static VGMSTREAM* init_vgmstream_internal(STREAMFILE* sf) {
for (int i = 0; i < init_vgmstream_count; i++) {
init_vgmstream_t init_vgmstream_function = init_vgmstream_functions[i];
/* call init function and see if valid VGMSTREAM was returned */
VGMSTREAM* vgmstream = init_vgmstream_function(sf);
if (!vgmstream)
continue;
/* fail if there is nothing/too much to play (<=0 generates empty files, >N writes GBs of garbage) */
if (vgmstream->num_samples <= 0 || vgmstream->num_samples > VGMSTREAM_MAX_NUM_SAMPLES) {
VGM_LOG("VGMSTREAM: wrong num_samples %i\n", vgmstream->num_samples);
int format_id = i + 1;
/* validate + setup vgmstream */
if (!prepare_vgmstream(vgmstream, sf, format_id)) {
/* keep trying if wasn't valid, as simpler formats may return a vgmstream by mistake */
close_vgmstream(vgmstream);
continue;
}
/* everything should have a reasonable sample rate */
if (vgmstream->sample_rate < VGMSTREAM_MIN_SAMPLE_RATE || vgmstream->sample_rate > VGMSTREAM_MAX_SAMPLE_RATE) {
VGM_LOG("VGMSTREAM: wrong sample_rate %i\n", vgmstream->sample_rate);
close_vgmstream(vgmstream);
continue;
}
/* sanify loops and remove bad metadata */
if (vgmstream->loop_flag) {
if (vgmstream->loop_end_sample <= vgmstream->loop_start_sample
|| vgmstream->loop_end_sample > vgmstream->num_samples
|| vgmstream->loop_start_sample < 0) {
VGM_LOG("VGMSTREAM: wrong loops ignored (lss=%i, lse=%i, ns=%i)\n",
vgmstream->loop_start_sample, vgmstream->loop_end_sample, vgmstream->num_samples);
vgmstream->loop_flag = 0;
vgmstream->loop_start_sample = 0;
vgmstream->loop_end_sample = 0;
}
}
/* test if candidate for dual stereo */
if (vgmstream->channels == 1 && vgmstream->allow_dual_stereo == 1) {
try_dual_file_stereo(vgmstream, sf, init_vgmstream_function);
}
#ifdef VGM_USE_FFMPEG
/* check FFmpeg streams here, for lack of a better place */
if (vgmstream->coding_type == coding_FFmpeg) {
int ffmpeg_subsongs = ffmpeg_get_subsong_count(vgmstream->codec_data);
if (ffmpeg_subsongs && !vgmstream->num_streams) {
vgmstream->num_streams = ffmpeg_subsongs;
}
}
#endif
/* some players are picky with incorrect channel layouts */
if (vgmstream->channel_layout > 0) {
int output_channels = vgmstream->channels;
int count = 0, max_ch = 32;
for (int ch = 0; ch < max_ch; ch++) {
int bit = (vgmstream->channel_layout >> ch) & 1;
if (ch > 17 && bit) {
VGM_LOG("VGMSTREAM: wrong bit %i in channel_layout %x\n", ch, vgmstream->channel_layout);
vgmstream->channel_layout = 0;
break;
}
count += bit;
}
if (count > output_channels) {
VGM_LOG("VGMSTREAM: wrong totals %i in channel_layout %x\n", count, vgmstream->channel_layout);
vgmstream->channel_layout = 0;
}
}
/* files can have thousands subsongs, but let's put a limit */
if (vgmstream->num_streams < 0 || vgmstream->num_streams > VGMSTREAM_MAX_SUBSONGS) {
VGM_LOG("VGMSTREAM: wrong num_streams (ns=%i)\n", vgmstream->num_streams);
close_vgmstream(vgmstream);
continue;
}
/* save info */
/* stream_index 0 may be used by plugins to signal "vgmstream default" (IOW don't force to 1) */
if (vgmstream->stream_index == 0) {
vgmstream->stream_index = sf->stream_index;
}
setup_vgmstream(vgmstream); /* final setup */
return vgmstream;
}
@ -683,6 +611,96 @@ static VGMSTREAM* init_vgmstream_internal(STREAMFILE* sf) {
return NULL;
}
init_vgmstream_t get_vgmstream_format_init(int format_id) {
// ID is expected to be from 1...N, to distinguish from 0 = not set
if (format_id <= 0 || format_id > init_vgmstream_count)
return NULL;
return init_vgmstream_functions[format_id - 1];
}
bool prepare_vgmstream(VGMSTREAM* vgmstream, STREAMFILE* sf, int format_id) {
/* fail if there is nothing/too much to play (<=0 generates empty files, >N writes GBs of garbage) */
if (vgmstream->num_samples <= 0 || vgmstream->num_samples > VGMSTREAM_MAX_NUM_SAMPLES) {
VGM_LOG("VGMSTREAM: wrong num_samples %i\n", vgmstream->num_samples);
return false;
}
/* everything should have a reasonable sample rate */
if (vgmstream->sample_rate < VGMSTREAM_MIN_SAMPLE_RATE || vgmstream->sample_rate > VGMSTREAM_MAX_SAMPLE_RATE) {
VGM_LOG("VGMSTREAM: wrong sample_rate %i\n", vgmstream->sample_rate);
return false;
}
/* sanify loops and remove bad metadata */
if (vgmstream->loop_flag) {
if (vgmstream->loop_end_sample <= vgmstream->loop_start_sample
|| vgmstream->loop_end_sample > vgmstream->num_samples
|| vgmstream->loop_start_sample < 0) {
VGM_LOG("VGMSTREAM: wrong loops ignored (lss=%i, lse=%i, ns=%i)\n",
vgmstream->loop_start_sample, vgmstream->loop_end_sample, vgmstream->num_samples);
vgmstream->loop_flag = 0;
vgmstream->loop_start_sample = 0;
vgmstream->loop_end_sample = 0;
}
}
/* test if candidate for dual stereo */
if (vgmstream->channels == 1 && vgmstream->allow_dual_stereo == 1) {
try_dual_file_stereo(vgmstream, sf, format_id);
}
#ifdef VGM_USE_FFMPEG
/* check FFmpeg streams here, for lack of a better place */
if (vgmstream->coding_type == coding_FFmpeg) {
int ffmpeg_subsongs = ffmpeg_get_subsong_count(vgmstream->codec_data);
if (ffmpeg_subsongs && !vgmstream->num_streams) {
vgmstream->num_streams = ffmpeg_subsongs;
}
}
#endif
/* some players are picky with incorrect channel layouts */
if (vgmstream->channel_layout > 0) {
int output_channels = vgmstream->channels;
int count = 0, max_ch = 32;
for (int ch = 0; ch < max_ch; ch++) {
int bit = (vgmstream->channel_layout >> ch) & 1;
if (ch > 17 && bit) {
VGM_LOG("VGMSTREAM: wrong bit %i in channel_layout %x\n", ch, vgmstream->channel_layout);
vgmstream->channel_layout = 0;
break;
}
count += bit;
}
if (count > output_channels) {
VGM_LOG("VGMSTREAM: wrong totals %i in channel_layout %x\n", count, vgmstream->channel_layout);
vgmstream->channel_layout = 0;
}
}
/* files can have thousands subsongs, but let's put a limit */
if (vgmstream->num_streams < 0 || vgmstream->num_streams > VGMSTREAM_MAX_SUBSONGS) {
VGM_LOG("VGMSTREAM: wrong num_streams (ns=%i)\n", vgmstream->num_streams);
return false;
}
/* save info */
/* stream_index 0 may be used by plugins to signal "vgmstream default" (IOW don't force to 1) */
if (vgmstream->stream_index == 0) {
vgmstream->stream_index = sf->stream_index;
}
setup_vgmstream(vgmstream); /* final setup */
return true;
}
void setup_vgmstream(VGMSTREAM* vgmstream) {
//TODO improve cleanup (done here to handle manually added layers)
@ -728,7 +746,7 @@ VGMSTREAM* init_vgmstream(const char* const filename) {
}
VGMSTREAM* init_vgmstream_from_STREAMFILE(STREAMFILE* sf) {
return init_vgmstream_internal(sf);
return detect_vgmstream_format(sf);
}
/* Reset a VGMSTREAM to its state at the start of playback (when a plugin seeks back to zero). */
@ -807,7 +825,7 @@ VGMSTREAM* allocate_vgmstream(int channels, int loop_flag) {
vgmstream->mixer = mixer_init(vgmstream->channels); /* pre-init */
//if (!vgmstream->mixer) goto fail;
/* BEWARE: try_dual_file_stereo does some free'ing too */
/* BEWARE: merge_vgmstream does some free'ing too */
//vgmstream->stream_name_size = STREAM_NAME_SIZE;
return vgmstream;
@ -1007,7 +1025,7 @@ fail:
/* See if there is a second file which may be the second channel, given an already opened mono vgmstream.
* If a suitable file is found, open it and change opened_vgmstream to a stereo vgmstream. */
static void try_dual_file_stereo(VGMSTREAM* opened_vgmstream, STREAMFILE* sf, init_vgmstream_t init_vgmstream_function) {
static void try_dual_file_stereo(VGMSTREAM* opened_vgmstream, STREAMFILE* sf, int format_id) {
/* filename search pairs for dual file stereo */
static const char* const dfs_pairs[][2] = {
{"L","R"}, /* most common in .dsp and .vag */
@ -1092,9 +1110,13 @@ static void try_dual_file_stereo(VGMSTREAM* opened_vgmstream, STREAMFILE* sf, in
/* filename didn't have a suitable L/R-pair name */
if (dfs_pair == -1)
goto fail;
return;
//;VGM_LOG("DFS: match %i filename=%s\n", dfs_pair, new_filename);
init_vgmstream_t init_vgmstream_function = get_vgmstream_format_init(format_id);
if (init_vgmstream_function == NULL)
goto fail;
new_vgmstream = init_vgmstream_function(dual_sf); /* use the init function that just worked */
close_streamfile(dual_sf);
if (!new_vgmstream)

11
src/vgmstream_init.h Normal file
View File

@ -0,0 +1,11 @@
#ifndef _DETECTION_H_
#define _DETECTION_H_
#include "meta/meta.h"
#include "vgmstream.h"
bool prepare_vgmstream(VGMSTREAM* vgmstream, STREAMFILE* sf, int format_id);
VGMSTREAM* detect_vgmstream_format(STREAMFILE* sf);
init_vgmstream_t get_vgmstream_format_init(int format_id);
#endif