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abstract out wav scanning

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This commit is contained in:
Ron Pedde 2005-06-01 02:54:20 +00:00
parent e2d835fbce
commit 443afc5a76
2 changed files with 4 additions and 81 deletions
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2
src/Makefile.am
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@ -37,7 +37,7 @@ mt_daapd_SOURCES = main.c daapd.h rend.h uici.c uici.h webserver.c \
strsep.c dynamic-art.c dynamic-art.h query.c query.h ssc.c ssc.h \
db-generic.c db-generic.h dispatch.c dispatch.h \
rxml.c rxml.h redblack.c redblack.h \
scan-xml.c scan-wma.c scan-aac.c scan-aac.h \
scan-xml.c scan-wma.c scan-aac.c scan-aac.h scan-wav.c \
$(PRENDSRC) $(ORENDSRC) $(HRENDSRC) $(OGGVORBISSRC) $(FLACSRC) \
$(SQLITEDB)

83
src/mp3-scanner.c
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@ -286,7 +286,6 @@ static int scan_get_mp3tags(char *file, MP3FILE *pmp3);
static int scan_get_nultags(char *file, MP3FILE *pmp3) { return 0; };
static int scan_get_fileinfo(char *file, MP3FILE *pmp3);
static int scan_get_mp3fileinfo(char *file, MP3FILE *pmp3);
static int scan_get_wavfileinfo(char *file, MP3FILE *pmp3);
//static int scan_get_nulfileinfo(char *file, MP3FILE *pmp3) { return 0; };
static int scan_get_urlfileinfo(char *file, MP3FILE *pmp3);
@ -318,6 +317,8 @@ extern int scan_get_wmainfo(char *filename, MP3FILE *pmp3);
/** @see scan-aac.c */
extern int scan_get_aacinfo(char *filename, MP3FILE *pmp3);
/** @see scan-wav.c */
extern int scan_get_wavinfo(char *file, MP3FILE *pmp3);
/* playlist scanners */
/** @see scan-xml.c */
@ -351,7 +352,7 @@ static TAGHANDLER taghandlers[] = {
{ "m4a", scan_get_nultags, scan_get_aacinfo, "m4a", "mp4a", "AAC audio file" },
{ "m4p", scan_get_nultags, scan_get_aacinfo, "m4p", "mp4a", "AAC audio file" },
{ "mp3", scan_get_mp3tags, scan_get_mp3fileinfo, "mp3", "mpeg", "MPEG audio file" },
{ "wav", scan_get_nultags, scan_get_wavfileinfo, "wav", "wav", "WAV audio file" },
{ "wav", scan_get_nultags, scan_get_wavinfo, "wav", "wav", "WAV audio file" },
{ "wma", scan_get_nultags, scan_get_wmainfo, "wma", "wma", "WMA audio file" },
{ "url", scan_get_nultags, scan_get_urlfileinfo, "pls", NULL, "Playlist URL" },
{ "pls", scan_get_nultags, scan_get_urlfileinfo, "pls", NULL, "Playlist URL" },
@ -1094,84 +1095,6 @@ int scan_get_urlfileinfo(char *file, MP3FILE *pmp3) {
return 0;
}
#define GET_WAV_INT32(p) ((((unsigned long)((p)[3])) << 24) | \
(((unsigned long)((p)[2])) << 16) | \
(((unsigned long)((p)[1])) << 8) | \
(((unsigned long)((p)[0]))))
#define GET_WAV_INT16(p) ((((unsigned long)((p)[1])) << 8) | \
(((unsigned long)((p)[0]))))
/*
* scan_get_wavfileinfo
*
* Get info from the actual wav headers
*/
int scan_get_wavfileinfo(char *file, MP3FILE *pmp3) {
FILE *infile;
size_t rl;
unsigned char hdr[44];
unsigned long chunk_data_length;
unsigned long format_data_length;
unsigned long compression_code;
unsigned long channel_count;
unsigned long sample_rate;
unsigned long sample_bit_length;
unsigned long bit_rate;
unsigned long data_length;
unsigned long sec, ms;
DPRINTF(E_DBG,L_SCAN,"Getting WAV file info\n");
if(!(infile=fopen(file,"rb"))) {
DPRINTF(E_WARN,L_SCAN,"Could not open %s for reading\n",file);
return -1;
}
fseek(infile,0,SEEK_END);
pmp3->file_size = ftell(infile);
fseek(infile,0,SEEK_SET);
rl = fread(hdr, 1, 44, infile);
fclose(infile);
if (rl != 44) {
DPRINTF(E_WARN,L_SCAN,"Could not read wav header from %s\n",file);
return -1;
}
if (strncmp((char*)hdr + 0, "RIFF", 4) ||
strncmp((char*)hdr + 8, "WAVE", 4) ||
strncmp((char*)hdr + 12, "fmt ", 4) ||
strncmp((char*)hdr + 36, "data", 4)) {
DPRINTF(E_WARN,L_SCAN,"Invalid wav header in %s\n",file);
return -1;
}
chunk_data_length = GET_WAV_INT32(hdr + 4);
format_data_length = GET_WAV_INT32(hdr + 16);
compression_code = GET_WAV_INT16(hdr + 20);
channel_count = GET_WAV_INT16(hdr + 22);
sample_rate = GET_WAV_INT32(hdr + 24);
sample_bit_length = GET_WAV_INT16(hdr + 34);
data_length = GET_WAV_INT32(hdr + 40);
if ((format_data_length != 16) ||
(compression_code != 1) ||
(channel_count < 1)) {
DPRINTF(E_WARN,L_SCAN,"Invalid wav header in %s\n",file);
return -1;
}
bit_rate = sample_rate * channel_count * ((sample_bit_length + 7) / 8) * 8;
pmp3->bitrate = bit_rate / 1000;
pmp3->samplerate = sample_rate;
sec = data_length / (bit_rate / 8);
ms = ((data_length % (bit_rate / 8)) * 1000) / (bit_rate / 8);
pmp3->song_length = (sec * 1000) + ms;
return 0;
}
/**
* Decode an mp3 frame header. Determine layer, bitrate,