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authorllornkcor <llornkcor>2003-02-25 23:36:47 (UTC)
committer llornkcor <llornkcor>2003-02-25 23:36:47 (UTC)
commitbde9ed97c92b6f7eefa8a66d9f58aa4c78127733 (patch) (side-by-side diff)
tree4a74c6083acd5d89e191aaa3629040fb4449ff71
parent689847f2dcaabdfca266efd3c99c81b833bf6e9f (diff)
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add proper number of samples reporting
Diffstat (more/less context) (show whitespace changes)
-rw-r--r--core/multimedia/opieplayer/libmad/libmadplugin.cpp48
1 files changed, 41 insertions, 7 deletions
diff --git a/core/multimedia/opieplayer/libmad/libmadplugin.cpp b/core/multimedia/opieplayer/libmad/libmadplugin.cpp
index 9a1ab2a..9d1ff8c 100644
--- a/core/multimedia/opieplayer/libmad/libmadplugin.cpp
+++ b/core/multimedia/opieplayer/libmad/libmadplugin.cpp
@@ -1,826 +1,860 @@
/**********************************************************************
** Copyright (C) 2001 Trolltech AS. All rights reserved.
**
** This file is part of Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
// largly modified by Maximilian Reiss <max.reiss@gmx.de>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <time.h>
#include <locale.h>
#include <math.h>
#include <assert.h>
#include <qapplication.h>
#include <qmessagebox.h>
#include <qregexp.h>
#include <qpe/config.h>
// for network handling
#include <netinet/in.h>
#include <netdb.h>
#include <linux/limits.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>
//#define HAVE_MMAP
#if defined(HAVE_MMAP)
# include <sys/mman.h>
#endif
#include "libmadplugin.h"
extern "C" {
#include "mad.h"
}
#define MPEG_BUFFER_SIZE 65536
//#define MPEG_BUFFER_SIZE 32768 //16384 // 8192
//#define debugMsg(a) qDebug(a)
#define debugMsg(a)
class Input {
public:
char const *path;
int fd;
#if defined(HAVE_MMAP)
void *fdm;
#endif
+ unsigned long fileLength;
unsigned char *data;
unsigned long length;
int eof;
};
class Output {
public:
mad_fixed_t attenuate;
struct filter *filters;
unsigned int channels_in;
unsigned int channels_out;
unsigned int speed_in;
unsigned int speed_out;
const char *path;
};
# if defined(HAVE_MMAP)
static void *map_file(int fd, unsigned long *length)
{
void *fdm;
*length += MAD_BUFFER_GUARD;
fdm = mmap(0, *length, PROT_READ, MAP_SHARED, fd, 0);
if (fdm == MAP_FAILED)
return 0;
# if defined(HAVE_MADVISE)
madvise(fdm, *length, MADV_SEQUENTIAL);
# endif
return fdm;
}
static int unmap_file(void *fdm, unsigned long length)
{
if (munmap(fdm, length) == -1)
return -1;
return 0;
}
# endif
static inline QString tr( const char *str ) {
// Apparently this is okay from a plugin as it runs in the process space of the owner of the plugin
return qApp->translate( "OpiePlayer", str, "libmad strings for mp3 file info" );
}
class LibMadPluginData {
public:
Input input;
Output output;
int bad_last_frame;
struct mad_stream stream;
struct mad_frame frame;
struct mad_synth synth;
bool flush;
};
LibMadPlugin::LibMadPlugin() {
d = new LibMadPluginData;
d->input.fd = 0;
#if defined(HAVE_MMAP)
d->input.fdm = 0;
#endif
d->input.data = 0;
d->flush = TRUE;
info = tr( "No Song Open" );
}
LibMadPlugin::~LibMadPlugin() {
close();
delete d;
}
bool LibMadPlugin::isFileSupported( const QString& path ) {
debugMsg( "LibMadPlugin::isFileSupported" );
// Mpeg file extensions
// "mp2","mp3","m1v","m2v","m2s","mpg","vob","mpeg","ac3"
// Other media extensions
// "wav","mid","mod","s3m","ogg","avi","mov","sid"
char *ext = strrchr( path.latin1(), '.' );
// Test file extension
if ( ext ) {
if ( strncasecmp(ext, ".mp2", 4) == 0 )
return TRUE;
if ( strncasecmp(ext, ".mp3", 4) == 0 )
return TRUE;
}
// UGLY - just for fast testing
if ( path.left(4) == "http") {
return TRUE;
}
return FALSE;
}
int LibMadPlugin::is_address_multicast(unsigned long address) {
if ((address & 255) >= 224 && (address & 255) <= 239)
return (1);
return (0);
}
int LibMadPlugin::udp_open(char *address, int port) {
int enable = 1L;
struct sockaddr_in stAddr;
struct sockaddr_in stLclAddr;
struct ip_mreq stMreq;
struct hostent *host;
int sock;
stAddr.sin_family = AF_INET;
stAddr.sin_port = htons(port);
if ((host = gethostbyname(address)) == NULL) {
return (0);
}
stAddr.sin_addr = *((struct in_addr *)host->h_addr_list[0]);
/* Create a UDP socket */
if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
return (0);
}
/* Allow multiple instance of the client to share the same address and port */
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&enable, sizeof(unsigned long int)) < 0) {
return (0);
}
/* If the address is multicast, register to the multicast group */
if (is_address_multicast(stAddr.sin_addr.s_addr)) {
/* Bind the socket to port */
stLclAddr.sin_family = AF_INET;
stLclAddr.sin_addr.s_addr = htonl(INADDR_ANY);
stLclAddr.sin_port = stAddr.sin_port;
if (bind(sock, (struct sockaddr *)&stLclAddr, sizeof(stLclAddr)) < 0) {
return (0);
}
/* Register to a multicast address */
stMreq.imr_multiaddr.s_addr = stAddr.sin_addr.s_addr;
stMreq.imr_interface.s_addr = INADDR_ANY;
if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char *)&stMreq, sizeof(stMreq)) < 0) {
return (0);
}
} else {
/* Bind the socket to port */
stLclAddr.sin_family = AF_INET;
stLclAddr.sin_addr.s_addr = htonl(INADDR_ANY);
stLclAddr.sin_port = htons(0);
if (bind(sock, (struct sockaddr *)&stLclAddr, sizeof(stLclAddr)) < 0) {
return (0);
}
}
return (sock);
}
int LibMadPlugin::tcp_open(char *address, int port) {
struct sockaddr_in stAddr;
struct hostent *host;
int sock;
struct linger l;
memset(&stAddr, 0, sizeof(stAddr));
stAddr.sin_family = AF_INET;
stAddr.sin_port = htons(port);
if ((host = gethostbyname(address)) == NULL) {
return (0);
}
stAddr.sin_addr = *((struct in_addr *)host->h_addr_list[0]);
if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
return (0);
}
l.l_onoff = 1;
l.l_linger = 5;
if (setsockopt(sock, SOL_SOCKET, SO_LINGER, (char *)&l, sizeof(l)) < 0) {
return (0);
}
if (connect(sock, (struct sockaddr *)&stAddr, sizeof(stAddr)) < 0) {
return (0);
}
return (sock);
}
/**
* Read a http line header.
* This function read character by character.
* @param tcp_sock the socket use to read the stream
* @param buf a buffer to receive the data
* @param size size of the buffer
* @return the size of the stream read or -1 if an error occured
*/
int LibMadPlugin::http_read_line(int tcp_sock, char *buf, int size) {
int offset = 0;
do {
if (::read(tcp_sock, buf + offset, 1) < 0)
return -1;
if (buf[offset] != '\r') /* Strip \r from answer */
offset++;
} while (offset < size - 1 && buf[offset - 1] != '\n');
buf[offset] = 0;
return offset;
}
int LibMadPlugin::http_open(const QString& path ) {
char *host;
int port;
char *request;
int tcp_sock;
char http_request[PATH_MAX];
char filename[PATH_MAX];
//char c;
char *arg =strdup(path.latin1());
/* Check for URL syntax */
if (strncmp(arg, "http://", strlen("http://"))) {
return (0);
}
/* Parse URL */
port = 80;
host = arg + strlen("http://");
if ((request = strchr(host, '/')) == NULL) {
return (0);
}
*request++ = 0;
if (strchr(host, ':') != NULL) { /* port is specified */
port = atoi(strchr(host, ':') + 1);
*strchr(host, ':') = 0;
}
/* Open a TCP socket */
if (!(tcp_sock = tcp_open(host, port))) {
perror("http_open");
return (0);
}
snprintf(filename, sizeof(filename) - strlen(host) - 75, "%s", request);
/* Send HTTP GET request */
/* Please don't use a Agent know by shoutcast (Lynx, Mozilla) seems to be reconized and print
* a html page and not the stream */
snprintf(http_request, sizeof(http_request), "GET /%s HTTP/1.0\r\n"
/* "User-Agent: Mozilla/2.0 (Win95; I)\r\n" */
"Pragma: no-cache\r\n" "Host: %s\r\n" "Accept: */*\r\n" "\r\n", filename, host);
send(tcp_sock, http_request, strlen(http_request), 0);
/* Parse server reply */
#if 0
do
read(tcp_sock, &c, sizeof(char));
while (c != ' ');
read(tcp_sock, http_request, 4 * sizeof(char));
http_request[4] = 0;
if (strcmp(http_request, "200 ")) {
fprintf(stderr, "http_open: ");
do {
read(tcp_sock, &c, sizeof(char));
fprintf(stderr, "%c", c);
} while (c != '\r');
fprintf(stderr, "\n");
return (0);
}
#endif
QString name;
QString genre;
QString bitrate;
QString url;
QString message = tr("Info: ");
do {
int len;
len = http_read_line(tcp_sock, http_request, sizeof(http_request));
if (len == -1) {
qDebug( "http_open: "+ QString(strerror(errno)) +"\n");
return 0;
}
if (QString(http_request).left(9) == "Location:") {
/* redirect */
::close(tcp_sock);
http_request[strlen(http_request) - 1] = '\0';
return http_open(&http_request[10]);
}
if (QString(http_request).left(4) == "ICY ") {
/* This is shoutcast/icecast streaming */
if (strncmp(http_request + 4, "200 ", 4)) {
qDebug("http_open: " + QString(http_request) + "\n");
return 0;
}
} else if (QString(http_request).left(4) == "icy-") {
/* we can have: icy-noticeX, icy-name, icy-genre, icy-url, icy-pub, icy-metaint, icy-br */
if ( QString( http_request ).left( 8 ) == "icy-name" ) {
name = tr("Name: ") + QString(http_request).mid(9, (QString(http_request).length())- 9 );
} else if ( QString( http_request ).left( 9 ) == "icy-genre" ) {
genre = tr("Genre: ") + QString(http_request).mid(10, (QString(http_request).length())-10 );
} else if ( QString( http_request ).left( 6 ) == "icy-br" ) {
bitrate = tr("Bitrate: ") + QString(http_request).mid(7, (QString(http_request).length())- 7 );
} else if ( QString( http_request ).left( 7 ) == "icy-url" ) {
url = tr("URL: ") + QString(http_request).mid(8, (QString(http_request).length())- 8 );
} else if ( QString( http_request ).left( 10 ) == "icy-notice" ) {
message += QString(http_request).mid(11, QString(http_request).length()-11 ) ;
}
}
} while (strcmp(http_request, "\n") != 0);
info = QString(name + genre + url + bitrate + message).replace( QRegExp("\n"), " : " );
qDebug("Stream info: " + info);
return (tcp_sock);
}
bool LibMadPlugin::open( const QString& path ) {
debugMsg( "LibMadPlugin::open" );
Config cfg("OpiePlayer");
cfg.setGroup("Options");
bufferSize = cfg.readNumEntry("MPeg_BufferSize",MPEG_BUFFER_SIZE);
qDebug("buffer size is %d", bufferSize);
d->bad_last_frame = 0;
d->flush = TRUE;
info = QString( "" );
//qDebug( "Opening %s", path.latin1() );
if (path.left( 4 ) == "http" ) {
// in case of any error we get 0 here
if ( !(http_open(path) == 0) ) {
d->input.fd = http_open(path);
} else {
return FALSE;
}
} else {
d->input.path = path.latin1();
d->input.fd = ::open( d->input.path, O_RDONLY );
// thats a better place, since it should only seek for ID3 tags on mp3 files, not streams
printID3Tags();
}
if (d->input.fd == -1) {
qDebug("error opening %s", d->input.path );
return FALSE;
}
-#if defined(HAVE_MMAP)
struct stat stat;
if (fstat(d->input.fd, &stat) == -1) {
- //qDebug("error calling fstat"); return FALSE;
+ qDebug("error calling fstat"); return FALSE;
}
+ if (S_ISREG(stat.st_mode) && stat.st_size > 0)
+ d->input.fileLength = stat.st_size;
+ else
+ d->input.fileLength = 0;
+
+#if defined(HAVE_MMAP)
if (S_ISREG(stat.st_mode) && stat.st_size > 0) {
d->input.length = stat.st_size;
d->input.fdm = map_file(d->input.fd, &d->input.length);
if (d->input.fdm == 0) {
qDebug("error mmapping file"); return FALSE;
}
d->input.data = (unsigned char *)d->input.fdm;
}
#endif
if (d->input.data == 0) {
d->input.data = (unsigned char *)malloc( bufferSize /*MPEG_BUFFER_SIZE*/);
if (d->input.data == 0) {
qDebug("error allocating input buffer");
return FALSE;
}
d->input.length = 0;
}
d->input.eof = 0;
mad_stream_init(&d->stream);
mad_frame_init(&d->frame);
mad_synth_init(&d->synth);
return TRUE;
}
bool LibMadPlugin::close() {
debugMsg( "LibMadPlugin::close" );
int result = TRUE;
mad_synth_finish(&d->synth);
mad_frame_finish(&d->frame);
mad_stream_finish(&d->stream);
#if defined(HAVE_MMAP)
if (d->input.fdm) {
if (unmap_file(d->input.fdm, d->input.length) == -1) {
qDebug("error munmapping file");
result = FALSE;
}
d->input.fdm = 0;
d->input.data = 0;
}
#endif
if (d->input.data) {
free(d->input.data);
d->input.data = 0;
}
if (::close(d->input.fd) == -1) {
qDebug("error closing file %s", d->input.path);
result = FALSE;
}
d->input.fd = 0;
return result;
}
bool LibMadPlugin::isOpen() {
debugMsg( "LibMadPlugin::isOpen" );
return ( d->input.fd != 0 );
}
int LibMadPlugin::audioStreams() {
debugMsg( "LibMadPlugin::audioStreams" );
return 1;
}
int LibMadPlugin::audioChannels( int ) {
debugMsg( "LibMadPlugin::audioChannels" );
/*
long t; short t1[5]; audioReadSamples( t1, 2, 1, t, 0 );
qDebug( "LibMadPlugin::audioChannels: %i", d->frame.header.mode > 0 ? 2 : 1 );
return d->frame.header.mode > 0 ? 2 : 1;
*/
return 2;
}
int LibMadPlugin::audioFrequency( int ) {
debugMsg( "LibMadPlugin::audioFrequency" );
long t; short t1[5]; audioReadSamples( t1, 2, 1, t, 0 );
qDebug( "LibMadPlugin::audioFrequency: %i", d->frame.header.samplerate );
return d->frame.header.samplerate;
}
int LibMadPlugin::audioSamples( int ) {
debugMsg( "LibMadPlugin::audioSamples" );
- // long t; short t1[5]; audioReadSamples( t1, 2, 1, t, 0 );
-// mad_header_decode( (struct mad_header *)&d->frame.header, &d->stream );
-// qDebug( "LibMadPlugin::audioSamples: %i*%i", d->frame.header.duration.seconds, d->frame.header.samplerate );
-// return d->frame.header.duration.seconds * d->frame.header.samplerate;
+ long t; short t1[5]; audioReadSamples( t1, 2, 1, t, 0 );
+ mad_header_decode( (struct mad_header *)&d->frame.header, &d->stream );
+/*
+ qDebug( "LibMadPlugin::audioSamples: %i*%i", d->frame.header.duration.seconds,
+ d->frame.header.samplerate );
+ return d->frame.header.duration.seconds * d->frame.header.samplerate;
+*/
+ if ( d->frame.header.bitrate == 0 )
+ return 0;
+ int samples = (d->input.fileLength / (d->frame.header.bitrate/8)) * d->frame.header.samplerate;
- return 10000000;
+ qDebug( "LibMadPlugin::audioSamples: %i * %i * 8 / %i", (int)d->input.fileLength,
+ (int)d->frame.header.samplerate, (int)d->frame.header.bitrate );
+ qDebug( "LibMadPlugin::audioSamples: %i", samples );
+
+ return samples;
+
+// return 10000000;
}
bool LibMadPlugin::audioSetSample( long, int ) {
debugMsg( "LibMadPlugin::audioSetSample" );
+
+// long totalSamples = audioSamples(0);
+// if ( totalSamples <= 1 )
+// return FALSE;
+
+// // Seek to requested position
+// qDebug( "seek pos: %i", (int)((double)pos * d->input.fileLength / totalSamples) );
+// ::lseek( d->input.fd, (long)((double)pos * d->input.fileLength / totalSamples), SEEK_SET );
+// mad_stream_sync(&d->stream);
+
+// mad_stream_init(&d->stream);
+// mad_frame_init(&d->frame);
+// mad_synth_init(&d->synth);
+
+// return TRUE;
+ debugMsg( "LibMadPlugin::audioSetSample" );
return FALSE;
}
long LibMadPlugin::audioGetSample( int ) {
debugMsg( "LibMadPlugin::audioGetSample" );
return 0;
}
/*
bool LibMadPlugin::audioReadSamples( short *, int, long, int ) {
debugMsg( "LibMadPlugin::audioReadSamples" );
return FALSE;
}
bool LibMadPlugin::audioReReadSamples( short *, int, long, int ) {
debugMsg( "LibMadPlugin::audioReReadSamples" );
return FALSE;
}
*/
bool LibMadPlugin::read() {
debugMsg( "LibMadPlugin::read" );
int len;
if (d->input.eof)
return FALSE;
#if defined(HAVE_MMAP)
if (d->input.fdm) {
unsigned long skip = 0;
if (d->stream.next_frame) {
struct stat stat;
if (fstat(d->input.fd, &stat) == -1)
return FALSE;
if (stat.st_size + MAD_BUFFER_GUARD <= (signed)d->input.length)
return FALSE;
// file size changed; update memory map
skip = d->stream.next_frame - d->input.data;
if (unmap_file(d->input.fdm, d->input.length) == -1) {
d->input.fdm = 0;
d->input.data = 0;
return FALSE;
}
d->input.length = stat.st_size;
d->input.fdm = map_file(d->input.fd, &d->input.length);
if (d->input.fdm == 0) {
d->input.data = 0;
return FALSE;
}
d->input.data = (unsigned char *)d->input.fdm;
}
mad_stream_buffer(&d->stream, d->input.data + skip, d->input.length - skip);
} else
#endif
{
if (d->stream.next_frame) {
memmove(d->input.data, d->stream.next_frame,
d->input.length = &d->input.data[d->input.length] - d->stream.next_frame);
}
do {
len = ::read(d->input.fd, d->input.data + d->input.length, bufferSize /* MPEG_BUFFER_SIZE*/ - d->input.length);
}
while (len == -1 && errno == EINTR);
if (len == -1) {
qDebug("error reading audio");
return FALSE;
}
else if (len == 0) {
d->input.eof = 1;
assert(bufferSize /*MPEG_BUFFER_SIZE*/ - d->input.length >= MAD_BUFFER_GUARD);
while (len < MAD_BUFFER_GUARD)
d->input.data[d->input.length + len++] = 0;
}
mad_stream_buffer(&d->stream, d->input.data, d->input.length += len);
}
return TRUE;
}
static mad_fixed_t left_err, right_err;
static const int bits = 16;
static const int shift = MAD_F_FRACBITS + 1 - bits;
inline long audio_linear_dither( mad_fixed_t sample, mad_fixed_t& error ) {
sample += error;
mad_fixed_t quantized = (sample >= MAD_F_ONE) ? MAD_F_ONE - 1 : ( (sample < -MAD_F_ONE) ? -MAD_F_ONE : sample );
quantized &= ~((1L << shift) - 1);
error = sample - quantized;
return quantized >> shift;
}
inline void audio_pcm( short *data, unsigned int nsamples, mad_fixed_t *left, mad_fixed_t *right ) {
if ( right ) {
while (nsamples--) {
data[0] = audio_linear_dither( *left++, left_err );
data[1] = audio_linear_dither( *right++, right_err );
data += 2;
}
} else {
while (nsamples--) {
data[0] = data[1] = audio_linear_dither( *left++, left_err );
data += 2;
}
}
}
bool LibMadPlugin::decode( short *output, long samples, long& samplesMade ) {
debugMsg( "LibMadPlugin::decode" );
static int buffered = 0;
static mad_fixed_t buffer[2][65536 * 2];
int offset = buffered;
samplesMade = 0;
static int maxBuffered = 8000; // 65536;
if ( samples > maxBuffered ) {
samples = maxBuffered;
}
if ( d->flush ) {
buffered = 0;
offset = 0;
d->flush = FALSE;
}
while ( buffered < maxBuffered ) {
while (mad_frame_decode(&d->frame, &d->stream) == -1) {
if (!MAD_RECOVERABLE(d->stream.error)) {
debugMsg( "feed me" );
return FALSE; // Feed me
}
if ( d->stream.error == MAD_ERROR_BADCRC ) {
mad_frame_mute(&d->frame);
qDebug( "error decoding, bad crc" );
}
}
mad_synth_frame(&d->synth, &d->frame);
int decodedSamples = d->synth.pcm.length;
memcpy( &(buffer[0][offset]), d->synth.pcm.samples[0], decodedSamples * sizeof(mad_fixed_t) );
if ( d->synth.pcm.channels == 2 )
memcpy( &(buffer[1][offset]), d->synth.pcm.samples[1], decodedSamples * sizeof(mad_fixed_t) );
offset += decodedSamples;
buffered += decodedSamples;
}
//qApp->processEvents();
audio_pcm( output, samples, buffer[0], (d->synth.pcm.channels == 2) ? buffer[1] : 0 );
// audio_pcm( output, samples, buffer[1], buffer[0] );
// audio_pcm( output, samples, buffer[0], buffer[1] );
samplesMade = samples;
memmove( buffer[0], &(buffer[0][samples]), (buffered - samples) * sizeof(mad_fixed_t) );
if ( d->synth.pcm.channels == 2 ) {
memmove( buffer[1], &(buffer[1][samples]), (buffered - samples) * sizeof(mad_fixed_t) );
}
buffered -= samples;
return TRUE;
}
/*bool LibMadPlugin::audioReadStereoSamples( short *output, long samples, long& samplesMade, int ) {
*/
bool LibMadPlugin::audioReadSamples( short *output, int /*channels*/, long samples, long& samplesMade, int ) {
debugMsg( "LibMadPlugin::audioReadStereoSamples" );
static bool needInput = TRUE;
if ( samples == 0 )
return FALSE;
do {
if ( needInput )
if ( !read() ) {
return FALSE;
}
needInput = FALSE;
if ( decode( output, samples, samplesMade ) )
return TRUE;
else
needInput = TRUE;
}
while ( ( samplesMade < samples ) && ( !d->input.eof ) );
return FALSE;
}
double LibMadPlugin::getTime() {
debugMsg( "LibMadPlugin::getTime" );
return 0.0;
}
void LibMadPlugin::printID3Tags() {
qDebug( "LibMadPlugin::printID3Tags" );
char id3v1[128 + 1];
if ( ::lseek( d->input.fd, -128, SEEK_END ) == -1 ) {
qDebug( "error seeking to id3 tags" );
return;
}
if ( ::read( d->input.fd, id3v1, 128 ) != 128 ) {
qDebug( "error reading in id3 tags" );
return;
}
if ( ::strncmp( (const char *)id3v1, "TAG", 3 ) != 0 ) {
debugMsg( "sorry, no id3 tags" );
} else {
int len[5] = { 30, 30, 30, 4, 30 };
QString label[5] = { tr( "Title" ), tr( "Artist" ), tr( "Album" ), tr( "Year" ), tr( "Comment" ) };
char *ptr = id3v1 + 3, *ptr2 = ptr + len[0];
qDebug( "ID3 tags in file:" );
info = "";
for ( int i = 0; i < 5; ptr += len[i], i++, ptr2 += len[i] ) {
char push = *ptr2;
*ptr2 = '\0';
char *ptr3 = ptr2;
while ( ptr3-1 >= ptr && isspace(ptr3[-1]) ) ptr3--;
char push2 = *ptr3; *ptr3 = '\0';
if ( strcmp( ptr, "" ) ) {
if( ((QString)ptr).find(" ") == -1) // don't add anything that has blanks
info += ( i != 0 ? ", " : "" ) + label[i] + ": " + ptr;
}
// qDebug( info.latin1() );
*ptr3 = push2;
*ptr2 = push;
}
if (id3v1[126] == 0 && id3v1[127] != 0)