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Implemented CD Audio de-emphasizing for pre-emphasized tracks, closes #1623.

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This commit is contained in:
OBattler
2021-09-02 20:52:30 +02:00
parent 84f4b8cac7
commit 5b972fc477
6 changed files with 78 additions and 4 deletions
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2
src/include/86box/cdrom.h
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@@ -83,6 +83,7 @@ typedef struct {
void (*get_tracks)(struct cdrom *dev, int *first, int *last);
void (*get_track_info)(struct cdrom *dev, uint32_t track, int end, track_info_t *ti);
void (*get_subchannel)(struct cdrom *dev, uint32_t lba, subchannel_t *subc);
int (*is_track_pre)(struct cdrom *dev, uint32_t lba);
int (*sector_size)(struct cdrom *dev, uint32_t lba);
int (*read_sector)(struct cdrom *dev, int type, uint8_t *b, uint32_t lba);
int (*track_type)(struct cdrom *dev, uint32_t lba);
@@ -136,6 +137,7 @@ extern cdrom_t cdrom[CDROM_NUM];
extern int cdrom_lba_to_msf_accurate(int lba);
extern double cdrom_seek_time(cdrom_t *dev);
extern void cdrom_stop(cdrom_t *dev);
extern int cdrom_is_pre(cdrom_t *dev, uint32_t lba);
extern int cdrom_audio_callback(cdrom_t *dev, int16_t *output, int len);
extern uint8_t cdrom_audio_play(cdrom_t *dev, uint32_t pos, uint32_t len, int ismsf);
extern uint8_t cdrom_audio_track_search(cdrom_t *dev, uint32_t pos, int type, uint8_t playbit);

3
src/include/86box/cdrom_image_backend.h
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@@ -58,7 +58,7 @@ typedef struct {
typedef struct {
int number, track_number, attr, sector_size,
mode2, form;
mode2, form, pre, pad;
uint64_t start, length,
skip;
track_file_t *file;
@@ -75,6 +75,7 @@ extern void cdi_close(cd_img_t *cdi);
extern int cdi_set_device(cd_img_t *cdi, const char *path);
extern int cdi_get_audio_tracks(cd_img_t *cdi, int *st_track, int *end, TMSF *lead_out);
extern int cdi_get_audio_tracks_lba(cd_img_t *cdi, int *st_track, int *end, uint32_t *lead_out);
extern int cdi_get_audio_track_pre(cd_img_t *cdi, int track);
extern int cdi_get_audio_track_info(cd_img_t *cdi, int end, int track, int *track_num, TMSF *start, uint8_t *attr);
extern int cdi_get_audio_track_info_lba(cd_img_t *cdi, int end, int track, int *track_num, uint32_t *start, uint8_t *attr);
extern int cdi_get_track(cd_img_t *cdi, uint32_t sector);