Commiting iradio metadata patch from Colin Walters

Original commit message from CVS:
Commiting iradio metadata patch from Colin Walters
This commit is contained in:
Christian Schaller 2002-09-10 18:38:22 +00:00
parent dacd65ae01
commit 4f69b5040b

View file

@ -2,6 +2,8 @@
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
* 2001 Bastien Nocera <hadess@hadess.net>
* 2002 Kristian Rietveld <kris@gtk.org>
* 2002 Colin Walters <walters@gnu.org>
*
* gnomevfssrc.c:
*
@ -25,6 +27,11 @@
/*#undef BROKEN_SIG */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
@ -34,6 +41,8 @@
#include <gst/gst.h>
#include <libgnomevfs/gnome-vfs.h>
/* gnome-vfs.h doesn't include the following header, which we need: */
#include <libgnomevfs/gnome-vfs-standard-callbacks.h>
GstElementDetails gst_gnomevfssrc_details;
@ -89,6 +98,27 @@ struct _GstGnomeVFSSrc {
GnomeVFSFileOffset curoffset; /* current offset in file */
gulong bytes_per_read; /* bytes per read */
gboolean new_seek;
/* icecast/audiocast metadata extraction handling */
gboolean iradio_mode;
gboolean iradio_callbacks_pushed;
gint icy_metaint;
GnomeVFSFileSize icy_count;
gchar *iradio_name;
gchar *iradio_genre;
gchar *iradio_url;
gchar *iradio_title;
GThread *audiocast_thread;
GList *audiocast_notify_queue;
GMutex *audiocast_queue_mutex;
GMutex *audiocast_title_mutex;
gint audiocast_thread_die_infd;
gint audiocast_thread_die_outfd;
gint audiocast_port;
gint audiocast_fd;
};
struct _GstGnomeVFSSrcClass {
@ -133,6 +163,11 @@ enum {
ARG_BYTESPERREAD,
ARG_OFFSET,
ARG_FILESIZE,
ARG_IRADIO_MODE,
ARG_IRADIO_NAME,
ARG_IRADIO_GENRE,
ARG_IRADIO_URL,
ARG_IRADIO_TITLE,
};
GType gst_gnomevfssrc_get_type(void);
@ -156,6 +191,13 @@ static gboolean gst_gnomevfssrc_open_file (GstGnomeVFSSrc *src);
static gboolean gst_gnomevfssrc_srcpad_event (GstPad *pad, GstEvent *event);
static gboolean gst_gnomevfssrc_srcpad_query (GstPad *pad, GstPadQueryType type,
GstFormat *format, gint64 *value);
static int audiocast_init(GstGnomeVFSSrc *src);
static int audiocast_register_listener(gint *port, gint *fd);
static void audiocast_do_notifications(GstGnomeVFSSrc *src);
static gpointer audiocast_thread_run(GstGnomeVFSSrc *src);
static void audiocast_thread_kill(GstGnomeVFSSrc *src);
static GstElementClass *parent_class = NULL;
GType gst_gnomevfssrc_get_type(void)
@ -202,6 +244,44 @@ static void gst_gnomevfssrc_class_init(GstGnomeVFSSrcClass *klass)
gobject_class->dispose = gst_gnomevfssrc_dispose;
/* icecast stuff */
g_object_class_install_property (gobject_class,
ARG_IRADIO_MODE,
g_param_spec_boolean ("iradio-mode",
"iradio-mode",
"Enable internet radio mode (extraction of icecast/audiocast metadata)",
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
ARG_IRADIO_NAME,
g_param_spec_string ("iradio-name",
"iradio-name",
"Name of the stream",
NULL,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
ARG_IRADIO_GENRE,
g_param_spec_string ("iradio-genre",
"iradio-genre",
"Genre of the stream",
NULL,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
ARG_IRADIO_URL,
g_param_spec_string ("iradio-url",
"iradio-url",
"Homepage URL for radio stream",
NULL,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
ARG_IRADIO_TITLE,
g_param_spec_string ("iradio-title",
"iradio-title",
"Name of currently playing song",
NULL,
G_PARAM_READABLE));
gstelement_class->set_property = gst_gnomevfssrc_set_property;
gstelement_class->get_property = gst_gnomevfssrc_get_property;
@ -234,6 +314,21 @@ static void gst_gnomevfssrc_init(GstGnomeVFSSrc *gnomevfssrc)
gnomevfssrc->bytes_per_read = 4096;
gnomevfssrc->new_seek = FALSE;
gnomevfssrc->icy_metaint = 0;
gnomevfssrc->iradio_mode = FALSE;
gnomevfssrc->iradio_callbacks_pushed = FALSE;
gnomevfssrc->icy_count = 0;
gnomevfssrc->iradio_name = NULL;
gnomevfssrc->iradio_genre = NULL;
gnomevfssrc->iradio_url = NULL;
gnomevfssrc->iradio_title = NULL;
gnomevfssrc->audiocast_title_mutex = g_mutex_new();
gnomevfssrc->audiocast_queue_mutex = g_mutex_new();
gnomevfssrc->audiocast_notify_queue = NULL;
gnomevfssrc->audiocast_thread = NULL;
g_static_mutex_lock (&count_lock);
if (ref_count == 0) {
/* gnome vfs engine init */
@ -315,7 +410,11 @@ static void gst_gnomevfssrc_set_property(GObject *object, guint prop_id, const G
src->curoffset = g_value_get_int64 (value);
src->new_seek = TRUE;
break;
case ARG_IRADIO_MODE:
src->iradio_mode = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
@ -342,12 +441,401 @@ static void gst_gnomevfssrc_get_property(GObject *object, guint prop_id, GValue
case ARG_FILESIZE:
g_value_set_int64 (value, src->size);
break;
case ARG_IRADIO_MODE:
g_value_set_boolean (value, src->iradio_mode);
break;
case ARG_IRADIO_NAME:
g_value_set_string (value, src->iradio_name);
break;
case ARG_IRADIO_GENRE:
g_value_set_string (value, src->iradio_genre);
break;
case ARG_IRADIO_URL:
g_value_set_string (value, src->iradio_url);
break;
case ARG_IRADIO_TITLE:
g_mutex_lock(src->audiocast_title_mutex);
g_value_set_string (value, src->iradio_title);
g_mutex_unlock(src->audiocast_title_mutex);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*
* icecast/audiocast metadata extraction support code
*/
static int audiocast_init(GstGnomeVFSSrc *src)
{
int pipefds[2];
GError *error = NULL;
if (!src->iradio_mode)
return TRUE;
GST_DEBUG (0,"audiocast: registering listener");
if (audiocast_register_listener(&src->audiocast_port, &src->audiocast_fd) < 0)
{
gst_element_error(GST_ELEMENT(src),
"opening vfs file \"%s\" (%s)",
src->filename,
"unable to register UDP port");
close(src->audiocast_fd);
return FALSE;
}
GST_DEBUG (0,"audiocast: creating pipe");
src->audiocast_notify_queue = NULL;
if (pipe(pipefds) < 0)
{
close(src->audiocast_fd);
return FALSE;
}
src->audiocast_thread_die_infd = pipefds[0];
src->audiocast_thread_die_outfd = pipefds[1];
GST_DEBUG (0,"audiocast: creating audiocast thread");
src->audiocast_thread = g_thread_create((GThreadFunc) audiocast_thread_run, src, TRUE, &error);
if (error != NULL) {
gst_element_error(GST_ELEMENT(src),
"opening vfs file \"%s\" (unable to create thread: %s)",
src->filename,
error->message);
close(src->audiocast_fd);
return FALSE;
}
return TRUE;
}
static int audiocast_register_listener(gint *port, gint *fd)
{
struct sockaddr_in sin;
int sock;
socklen_t sinlen = sizeof (struct sockaddr_in);
GST_DEBUG (0,"audiocast: estabilishing UDP listener");
if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
goto lose;
memset(&sin, 0, sinlen);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = g_htonl(INADDR_ANY);
if (bind(sock, (struct sockaddr *)&sin, sinlen) < 0)
goto lose_and_close;
memset(&sin, 0, sinlen);
if (getsockname(sock, (struct sockaddr *)&sin, &sinlen) < 0)
goto lose_and_close;
GST_DEBUG (0,"audiocast: listening on local %s:%d", inet_ntoa(sin.sin_addr), g_ntohs(sin.sin_port));
*port = g_ntohs(sin.sin_port);
*fd = sock;
return 0;
lose_and_close:
close(sock);
lose:
return -1;
}
static void audiocast_do_notifications(GstGnomeVFSSrc *src)
{
/* Send any pending notifications we got from the UDP thread. */
if (src->iradio_mode)
{
GList *entry;
g_mutex_lock(src->audiocast_queue_mutex);
for (entry = src->audiocast_notify_queue; entry; entry = entry->next)
g_object_notify(G_OBJECT (src), (const gchar *) entry->data);
g_list_free(src->audiocast_notify_queue);
src->audiocast_notify_queue = NULL;
g_mutex_unlock(src->audiocast_queue_mutex);
}
}
static gpointer audiocast_thread_run(GstGnomeVFSSrc *src)
{
char buf[1025], **lines;
char *valptr;
gsize len;
fd_set fdset, readset;
struct sockaddr_in from;
socklen_t fromlen = sizeof(struct sockaddr_in);
FD_ZERO(&fdset);
FD_SET(src->audiocast_fd, &fdset);
FD_SET(src->audiocast_thread_die_infd, &fdset);
while (1)
{
GST_DEBUG (0,"audiocast thread: dropping into select");
readset = fdset;
if (select(FD_SETSIZE, &readset, NULL, NULL, NULL) < 0) {
perror("select");
return NULL;
}
if (FD_ISSET(src->audiocast_thread_die_infd, &readset)) {
char buf[1];
GST_DEBUG (0,"audiocast thread: got die character");
read(src->audiocast_thread_die_infd, buf, 1);
close(src->audiocast_thread_die_infd);
close(src->audiocast_fd);
return NULL;
}
GST_DEBUG (0,"audiocast thread: reading data");
len = recvfrom(src->audiocast_fd, buf, sizeof(buf) - 1, 0, (struct sockaddr *) &from, &fromlen);
if (len < 0 && errno == EAGAIN)
continue;
else if (len >= 0)
{
int i;
buf[len] = '\0';
lines = g_strsplit(buf, "\n", 0);
if (!lines)
continue;
for (i = 0; lines[i]; i++) {
while ((lines[i][strlen(lines[i]) - 1] == '\n') ||
(lines[i][strlen(lines[i]) - 1] == '\r'))
lines[i][strlen(lines[i]) - 1] = '\0';
valptr = strchr(lines[i], ':');
if (!valptr)
continue;
else
valptr++;
g_strstrip(valptr);
if (!strlen(valptr))
continue;
if (!strncmp(lines[i], "x-audiocast-streamtitle", 23)) {
g_mutex_lock(src->audiocast_title_mutex);
if (src->iradio_title)
g_free(src->iradio_title);
src->iradio_title = g_strdup(valptr);
g_mutex_unlock(src->audiocast_title_mutex);
g_mutex_lock(src->audiocast_queue_mutex);
src->audiocast_notify_queue = g_list_append(src->audiocast_notify_queue, "iradio-title");
GST_DEBUG(0,"audiocast title: %s\n", src->iradio_title);
g_mutex_unlock(src->audiocast_queue_mutex);
} else if (!strncmp(lines[i], "x-audiocast-udpseqnr", 20)) {
gchar outbuf[120];
sprintf(outbuf, "x-audiocast-ack: %ld \r\n", atol(valptr));
if (sendto(src->audiocast_fd, outbuf, strlen(outbuf), 0, (struct sockaddr *) &from, fromlen) <= 0) {
fprintf(stderr, "Error sending response to server: %s\n", strerror(errno));
continue;
}
GST_DEBUG(0,"sent audiocast ack: %s\n", outbuf);
}
}
g_strfreev(lines);
}
}
return NULL;
}
static void audiocast_thread_kill(GstGnomeVFSSrc *src)
{
if (!src->audiocast_thread)
return;
/*
We rely on this hack to kill the
audiocast thread. If we get icecast
metadata, then we don't need the
audiocast metadata too.
*/
GST_DEBUG (0,"audiocast: writing die character");
write(src->audiocast_thread_die_outfd, "q", 1);
close(src->audiocast_thread_die_outfd);
GST_DEBUG (0,"audiocast: joining thread");
g_thread_join(src->audiocast_thread);
src->audiocast_thread = NULL;
}
static void
gst_gnomevfssrc_send_additional_headers_callback (gconstpointer in,
gsize in_size,
gpointer out,
gsize out_size,
gpointer callback_data)
{
GstGnomeVFSSrc *src = GST_GNOMEVFSSRC (callback_data);
GnomeVFSModuleCallbackAdditionalHeadersOut *out_args =
(GnomeVFSModuleCallbackAdditionalHeadersOut *)out;
if (!src->iradio_mode)
return;
GST_DEBUG(0,"sending headers\n");
out_args->headers = g_list_append (out_args->headers,
g_strdup ("icy-metadata:1\r\n"));
out_args->headers = g_list_append (out_args->headers,
g_strdup_printf ("x-audiocast-udpport: %d\r\n", src->audiocast_port));
}
static void
gst_gnomevfssrc_received_headers_callback (gconstpointer in,
gsize in_size,
gpointer out,
gsize out_size,
gpointer callback_data)
{
GList *i;
gint icy_metaint;
GstGnomeVFSSrc *src = GST_GNOMEVFSSRC (callback_data);
GnomeVFSModuleCallbackReceivedHeadersIn *in_args =
(GnomeVFSModuleCallbackReceivedHeadersIn *)in;
if (!src->iradio_mode)
return;
for (i = in_args->headers; i; i = i->next) {
char *data = (char *) i->data;
char *key;
char *value = strchr(data, ':');
if (!value)
continue;
value++;
g_strstrip(value);
if (!strlen(value))
continue;
/* Icecast stuff */
if (!strncmp (data, "icy-metaint:", 12)) /* ugh */
{
sscanf (data + 12, "%d", &icy_metaint);
src->icy_metaint = icy_metaint;
GST_DEBUG (0,"got icy-metaint, killing audiocast thread");
audiocast_thread_kill(src);
continue;
}
if (!strncmp(data, "icy-", 4))
key = data + 4;
else if (!strncmp(data, "x-audiocast-", 12))
key = data + 12;
else
continue;
if (!strncmp (key, "name", 4)) {
if (src->iradio_name)
g_free (src->iradio_name);
src->iradio_name = g_strdup (value);
g_object_notify (G_OBJECT (src), "iradio-name");
} else if (!strncmp (key, "genre", 5)) {
if (src->iradio_genre)
g_free (src->iradio_genre);
src->iradio_genre = g_strdup (value);
g_object_notify (G_OBJECT (src), "iradio-genre");
} else if (!strncmp (data, "url", 3)) {
if (src->iradio_url)
g_free (src->iradio_url);
src->iradio_url = g_strdup (value);
g_object_notify (G_OBJECT (src), "iradio-url");
}
}
}
static void
gst_gnomevfssrc_push_callbacks (GstGnomeVFSSrc *gnomevfssrc)
{
if (gnomevfssrc->iradio_callbacks_pushed)
return;
GST_DEBUG (0,"pushing callbacks");
gnome_vfs_module_callback_push (GNOME_VFS_MODULE_CALLBACK_HTTP_SEND_ADDITIONAL_HEADERS,
gst_gnomevfssrc_send_additional_headers_callback,
gnomevfssrc,
NULL);
gnome_vfs_module_callback_push (GNOME_VFS_MODULE_CALLBACK_HTTP_RECEIVED_HEADERS,
gst_gnomevfssrc_received_headers_callback,
gnomevfssrc,
NULL);
gnomevfssrc->iradio_callbacks_pushed = TRUE;
}
static void
gst_gnomevfssrc_pop_callbacks (GstGnomeVFSSrc *gnomevfssrc)
{
if (!gnomevfssrc->iradio_callbacks_pushed)
return;
GST_DEBUG (0,"popping callbacks");
gnome_vfs_module_callback_pop (GNOME_VFS_MODULE_CALLBACK_HTTP_SEND_ADDITIONAL_HEADERS);
gnome_vfs_module_callback_pop (GNOME_VFS_MODULE_CALLBACK_HTTP_RECEIVED_HEADERS);
}
static void
gst_gnomevfssrc_get_icy_metadata (GstGnomeVFSSrc *src)
{
GnomeVFSFileSize length = 0;
GnomeVFSResult res;
gint metadata_length;
guchar foobyte;
guchar *data;
guchar *pos;
gchar **tags;
int i;
GST_DEBUG (0,"reading icecast metadata");
while (length == 0) {
res = gnome_vfs_read (src->handle, &foobyte, 1, &length);
if (res != GNOME_VFS_OK)
return;
}
metadata_length = foobyte * 16;
if (metadata_length == 0)
return;
data = g_new (gchar, metadata_length + 1);
pos = data;
while (pos - data < metadata_length) {
res = gnome_vfs_read (src->handle, pos,
metadata_length - (pos - data),
&length);
/* FIXME: better error handling here? */
if (res != GNOME_VFS_OK) {
g_free (data);
return;
}
pos += length;
}
data[metadata_length] = 0;
tags = g_strsplit(data, "';", 0);
for (i = 0; tags[i]; i++)
{
if (!g_strncasecmp(tags[i], "StreamTitle=", 12))
{
if (src->iradio_title)
g_free (src->iradio_title);
src->iradio_title = g_strdup(tags[i]+13);
GST_DEBUG(0, "sending notification on icecast title");
g_object_notify (G_OBJECT (src), "iradio-title");
}
}
g_strfreev(tags);
}
/* end of icecast/audiocast metadata extraction support code */
/**
* gst_gnomevfssrc_get:
* @pad: #GstPad to push a buffer from
@ -378,6 +866,8 @@ static GstBuffer *gst_gnomevfssrc_get(GstPad *pad)
buf = gst_buffer_new();
g_return_val_if_fail(buf, NULL);
audiocast_do_notifications(src);
/* read it in from the file */
if (src->is_local)
{
@ -411,7 +901,33 @@ static GstBuffer *gst_gnomevfssrc_get(GstPad *pad)
src->curoffset += GST_BUFFER_SIZE (buf);
g_object_notify ((GObject*) src, "offset");
} else if (src->iradio_mode && src->icy_metaint > 0) {
GST_BUFFER_DATA (buf) = g_malloc0 (src->icy_metaint);
g_return_val_if_fail (GST_BUFFER_DATA (buf) != NULL, NULL);
result = gnome_vfs_read (src->handle, GST_BUFFER_DATA (buf),
src->icy_metaint - src->icy_count,
&readbytes);
/* EOS? */
if (readbytes == 0) {
gst_buffer_unref (buf);
gst_element_set_eos (GST_ELEMENT (src));
return GST_BUFFER (gst_event_new (GST_EVENT_EOS));
}
src->icy_count += readbytes;
GST_BUFFER_OFFSET (buf) = src->curoffset;
GST_BUFFER_SIZE (buf) = readbytes;
src->curoffset += readbytes;
if (src->icy_count == src->icy_metaint) {
gst_gnomevfssrc_get_icy_metadata (src);
src->icy_count = 0;
}
g_object_notify (G_OBJECT (src), "offset");
} else {
/* allocate the space for the buffer data */
GST_BUFFER_DATA(buf) = g_malloc(src->bytes_per_read);
@ -509,11 +1025,19 @@ static gboolean gst_gnomevfssrc_open_file(GstGnomeVFSSrc *src)
src->new_seek = TRUE;
} else {
if (!audiocast_init(src))
return FALSE;
gst_gnomevfssrc_push_callbacks (src);
result =
gnome_vfs_open_uri(&(src->handle), src->uri,
GNOME_VFS_OPEN_READ);
if (result != GNOME_VFS_OK)
{
gst_gnomevfssrc_pop_callbacks (src);
audiocast_thread_kill(src);
gst_element_error(GST_ELEMENT(src),
"opening vfs file \"%s\" (%s)",
src->filename,
@ -529,7 +1053,7 @@ static gboolean gst_gnomevfssrc_open_file(GstGnomeVFSSrc *src)
info = gnome_vfs_file_info_new ();
size_result = gnome_vfs_get_file_info_uri(src->uri,
info, GNOME_VFS_FILE_INFO_DEFAULT);
if (size_result != GNOME_VFS_OK)
src->size = 0;
else
@ -541,6 +1065,8 @@ static gboolean gst_gnomevfssrc_open_file(GstGnomeVFSSrc *src)
gnome_vfs_file_info_unref(info);
}
audiocast_do_notifications(src);
GST_DEBUG(0, "open %s", gnome_vfs_result_to_string(result));
}
@ -554,6 +1080,9 @@ static void gst_gnomevfssrc_close_file(GstGnomeVFSSrc *src)
{
g_return_if_fail(GST_FLAG_IS_SET(src, GST_GNOMEVFSSRC_OPEN));
gst_gnomevfssrc_pop_callbacks (src);
audiocast_thread_kill(src);
/* close the file */
if (src->is_local)
{
@ -726,3 +1255,9 @@ GstPluginDesc plugin_desc = {
"gnomevfssrc",
plugin_init
};
/*
Local Variables:
c-file-style: "linux"
End:
*/