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Get the NSF internal playlists working again. Fix a few wrongdoings in the metadata parser. Use the larger of track or playlist count to determine 'duration' so that the repeat-one switching to access the raw tracks works.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29793 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2011-04-28 02:56:28 +00:00
parent fa65362a42
commit ac724cca19
2 changed files with 87 additions and 55 deletions
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29
apps/codecs/nsf.c
View file

@ -4294,12 +4294,18 @@ jammed:
/****************** rockbox interface ******************/
/** Operational info **/
static int track = 0;
static char last_path[MAX_PATH];
static int dontresettrack = 0;
static bool repeat_one = false;
static void set_codec_track(int t, int d) {
int track,fade,def=0;
SetTrack(t);
/* for REPEAT_ONE we disable track limits */
if (ci->global_settings->repeat_mode!=REPEAT_ONE) {
if (!repeat_one) {
if (!bIsExtended || nTrackTime[t]==-1) {track=60*2*1000; def=1;}
else track=nTrackTime[t];
if (!bIsExtended || nTrackFade[t]==-1) fade=5*1000;
@ -4310,11 +4316,6 @@ static void set_codec_track(int t, int d) {
ci->set_elapsed(d*1000); /* d is track no to display */
}
/** Operational info **/
static int track = 0;
static char last_path[MAX_PATH];
static int dontresettrack = 0;
/* this is the codec entry point */
enum codec_status codec_main(enum codec_entry_call_reason reason)
{
@ -4357,6 +4358,8 @@ enum codec_status codec_run(void)
return CODEC_ERROR;
}
repeat_one = ci->global_settings->repeat_mode == REPEAT_ONE;
init_nsf:
if(!NSFCore_Initialize()) {
DEBUGF("NSF: NSFCore_Initialize failed\n"); return CODEC_ERROR;}
@ -4368,21 +4371,11 @@ init_nsf:
if(!LoadNSF(nDataBufferSize)) {
DEBUGF("NSF: LoadNSF failed\n"); return CODEC_ERROR;}
ci->id3->title=szGameTitle;
ci->id3->artist=szArtist;
ci->id3->album=szCopyright;
if (usingplaylist) {
ci->id3->length=nPlaylistSize*1000;
} else {
ci->id3->length=nTrackCount*1000;
}
if (!dontresettrack||strcmp(ci->id3->path,last_path)) {
/* if this is the first time we're seeing this file, or if we haven't
been asked to preserve the track number, default to the proper
initial track */
if (bIsExtended &&
ci->global_settings->repeat_mode!=REPEAT_ONE && nPlaylistSize>0) {
if (bIsExtended && !repeat_one && nPlaylistSize>0) {
/* decide to use the playlist */
usingplaylist=1;
track=0;
@ -4447,7 +4440,7 @@ init_nsf:
print_timers(last_path,track);
if (ci->global_settings->repeat_mode==REPEAT_ONE) {
if (repeat_one) {
/* in repeat one mode just advance to the next track */
track++;
if (track>=nTrackCount) track=0;

113
apps/metadata/nsf.c
View file

@ -45,12 +45,21 @@ struct NSFE_INFOCHUNK
#define CHAR4_CONST(a, b, c, d) FOURCC(a, b, c, d)
#define CHUNK_INFO 0x0001
#define CHUNK_DATA 0x0002
#define CHUNK_NEND 0x0004
#define CHUNK_plst 0x0008
#define CHUNK_time 0x0010
#define CHUNK_fade 0x0020
#define CHUNK_tlbl 0x0040
#define CHUNK_auth 0x0080
#define CHUNK_BANK 0x0100
static bool parse_nsfe(int fd, struct mp3entry *id3)
{
bool info_found = false;
bool end_found = false;
bool data_found = false;
unsigned int chunks_found = 0;
long track_count = 0;
long playlist_count = 0;
struct NSFE_INFOCHUNK info;
memset(&info, 0, sizeof(struct NSFE_INFOCHUNK));
@ -60,9 +69,9 @@ static bool parse_nsfe(int fd, struct mp3entry *id3)
id3->length = 2*1000*60;
/* begin reading chunks */
while (!end_found)
while (!(chunks_found & CHUNK_NEND))
{
int32_t chunk_size, chunk_type;
uint32_t chunk_size, chunk_type;
if (read_uint32le(fd, &chunk_size) != (int)sizeof(uint32_t))
return false;
@ -72,35 +81,62 @@ static bool parse_nsfe(int fd, struct mp3entry *id3)
switch (chunk_type)
{
/* first three types are mandatory (but don't worry about NEND
anyway) */
case CHAR4_CONST('I', 'N', 'F', 'O'):
{
/* only one info chunk permitted */
if (info_found)
return false;
if (chunks_found & CHUNK_INFO)
return false; /* only one info chunk permitted */
info_found = true;
chunks_found |= CHUNK_INFO;
/* minimum size */
if (chunk_size < 8)
return false;
ssize_t size = MIN((ssize_t)sizeof(struct NSFE_INFOCHUNK),
chunk_size);
ssize_t size = MIN(sizeof(struct NSFE_INFOCHUNK), chunk_size);
if (read(fd, &info, size) != size)
return false;
if (size >= 9)
id3->length = info.nTrackCount*1000;
track_count = info.nTrackCount;
lseek(fd, chunk_size - size, SEEK_CUR);
chunk_size -= size;
break;
}
case CHAR4_CONST('D', 'A', 'T', 'A'):
{
if (!(chunks_found & CHUNK_INFO))
return false;
if (chunks_found & CHUNK_DATA)
return false; /* only one may exist */
if (chunk_size < 1)
return false;
chunks_found |= CHUNK_DATA;
break;
}
case CHAR4_CONST('N', 'E', 'N', 'D'):
{
/* just end parsing regardless of whether or not this really is the
last chunk/data (but it _should_ be) */
chunks_found |= CHUNK_NEND;
continue;
}
/* remaining types are optional */
case CHAR4_CONST('a', 'u', 't', 'h'):
{
if (!info_found)
return false;
if (chunks_found & CHUNK_auth)
return false; /* only one may exist */
chunks_found |= CHUNK_auth;
/* szGameTitle, szArtist, szCopyright */
char ** const ar[] = { &id3->title, &id3->artist, &id3->album };
@ -120,39 +156,37 @@ static bool parse_nsfe(int fd, struct mp3entry *id3)
p += len;
buf_rem -= len;
if (chunk_size >= len)
if (chunk_size >= (uint32_t)len)
chunk_size -= len;
else
chunk_size = 0;
}
lseek(fd, chunk_size, SEEK_CUR);
break;
}
case CHAR4_CONST('D', 'A', 'T', 'A'):
if (chunk_size < 1)
return false;
data_found = true;
/* fall through */
case CHAR4_CONST('f', 'a', 'd', 'e'):
case CHAR4_CONST('t', 'i', 'm', 'e'):
case CHAR4_CONST('B', 'A', 'N', 'K'):
case CHAR4_CONST('p', 'l', 's', 't'):
{
if (chunks_found & CHUNK_plst)
return false; /* only one may exist */
chunks_found |= CHUNK_plst;
/* each byte is the index of one track */
playlist_count = chunk_size;
break;
}
case CHAR4_CONST('t', 'i', 'm', 'e'):
case CHAR4_CONST('f', 'a', 'd', 'e'):
case CHAR4_CONST('t', 'l', 'b', 'l'): /* we unfortunately can't use these anyway */
{
if (!info_found)
/* don't care how many of these there are even though there should
be only one */
if (!(chunks_found & CHUNK_INFO))
return false;
lseek(fd, chunk_size, SEEK_CUR);
break;
}
case CHAR4_CONST('N', 'E', 'N', 'D'):
{
end_found = true;
case CHAR4_CONST('B', 'A', 'N', 'K'):
break;
}
@ -166,19 +200,24 @@ static bool parse_nsfe(int fd, struct mp3entry *id3)
return false;
/* otherwise, just skip it */
lseek(fd, chunk_size, SEEK_CUR);
break;
}
} /* end switch */
lseek(fd, chunk_size, SEEK_CUR);
} /* end while */
if (track_count | playlist_count)
id3->length = MAX(track_count, playlist_count)*1000;
/*
* if we exited the while loop without a 'return', we must have hit an NEND
* chunk if this is the case, the file was layed out as it was expected.
* now.. make sure we found both an info chunk, AND a data chunk... since
* these are minimum requirements for a valid NSFE file
*/
return info_found && data_found;
return (chunks_found & (CHUNK_INFO | CHUNK_DATA)) ==
(CHUNK_INFO | CHUNK_DATA);
}
static bool parse_nesm(int fd, struct mp3entry *id3)