+/*****************************************************************************
+ * mtp.c : MTP interface module
+ *****************************************************************************
+ * Copyright (C) 2009 the VideoLAN team
+ *
+ * Authors: Fabio Ritrovato <exsephiroth87@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_playlist.h>
+#include <vlc_plugin.h>
+#include <errno.h>
+#include <vlc_charset.h>
+#include <vlc_interface.h>
+#include <vlc_services_discovery.h>
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#include "libmtp.h"
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+static int Open( vlc_object_t * );
+static void Close( vlc_object_t * );
+
+vlc_module_begin()
+ set_shortname( "MTP" )
+ set_description( N_( "MTP devices" ) )
+ set_category( CAT_PLAYLIST )
+ set_subcategory( SUBCAT_PLAYLIST_SD )
+ set_capability( "services_discovery", 0 )
+ set_callbacks( Open, Close )
+ linked_with_a_crap_library_which_uses_atexit()
+vlc_module_end()
+
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+
+static void *Run( void * );
+
+static int AddDevice( services_discovery_t *, LIBMTP_raw_device_t * );
+static void AddTrack( services_discovery_t *, LIBMTP_track_t *);
+static void CloseDevice( services_discovery_t * );
+static int CountTracks( uint64_t const, uint64_t const, void const * const );
+
+/*****************************************************************************
+ * Local structures
+ *****************************************************************************/
+
+struct services_discovery_sys_t
+{
+ int i_tracks_num;
+ input_item_t **pp_items;
+ int i_count;
+ char *psz_name;
+ uint32_t i_bus;
+ uint8_t i_dev;
+ uint16_t i_product_id;
+ vlc_thread_t thread;
+};
+
+static vlc_mutex_t mtp_lock = VLC_STATIC_MUTEX;
+static bool b_mtp_initialized = false;
+
+/*****************************************************************************
+ * Open: initialize and create stuff
+ *****************************************************************************/
+static int Open( vlc_object_t *p_this )
+{
+ services_discovery_t *p_sd = ( services_discovery_t * )p_this;
+ services_discovery_sys_t *p_sys;
+
+ if( !( p_sys = malloc( sizeof( services_discovery_sys_t ) ) ) )
+ return VLC_ENOMEM;
+ p_sd->p_sys = p_sys;
+ p_sys->psz_name = NULL;
+
+ vlc_mutex_lock( &mtp_lock );
+ if( !b_mtp_initialized )
+ {
+ LIBMTP_Init();
+ b_mtp_initialized = true;
+ }
+ vlc_mutex_unlock( &mtp_lock );
+
+ if (vlc_clone (&p_sys->thread, Run, p_sd, VLC_THREAD_PRIORITY_LOW))
+ {
+ free (p_sys);
+ return VLC_EGENERIC;
+ }
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Close: cleanup
+ *****************************************************************************/
+static void Close( vlc_object_t *p_this )
+{
+ services_discovery_t *p_sd = ( services_discovery_t * )p_this;
+
+ if( p_sd->p_sys->psz_name != NULL )
+ free( p_sd->p_sys->psz_name );
+ vlc_cancel (p_sd->p_sys->thread);
+ vlc_join (p_sd->p_sys->thread, NULL);
+ free( p_sd->p_sys );
+}
+
+/*****************************************************************************
+ * Run: main thread
+ *****************************************************************************/
+static void *Run( void *data )
+{
+ LIBMTP_raw_device_t *p_rawdevices;
+ int i_numrawdevices;
+ int i_ret;
+ int i_status = 0;
+ services_discovery_t *p_sd = data;
+
+ for(;;)
+ {
+ int canc = vlc_savecancel();
+ i_ret = LIBMTP_Detect_Raw_Devices( &p_rawdevices, &i_numrawdevices );
+ if ( i_ret == 0 && i_numrawdevices > 0 && p_rawdevices != NULL &&
+ i_status == 0 )
+ {
+ /* Found a new device, add it */
+ msg_Info( p_sd, "New device found" );
+ if( AddDevice( p_sd, &p_rawdevices[0] ) == VLC_SUCCESS )
+ i_status = 1;
+ }
+ else
+ {
+ if ( ( i_ret != 0 || i_numrawdevices == 0 || p_rawdevices == NULL )
+ && i_status == 1)
+ {
+ /* The device is not connected anymore, delete it */
+ msg_Info( p_sd, "Device disconnected" );
+ CloseDevice( p_sd );
+ i_status = 0;
+ }
+ }
+ free( p_rawdevices );
+ vlc_restorecancel(canc);
+ msleep( 500000 );
+ }
+ return NULL;
+}
+
+/*****************************************************************************
+ * Everything else
+ *****************************************************************************/
+static int AddDevice( services_discovery_t *p_sd,
+ LIBMTP_raw_device_t *p_raw_device )
+{
+ char *psz_name = NULL;
+ LIBMTP_mtpdevice_t *p_device;
+ LIBMTP_track_t *p_track, *p_tmp;
+
+ if( ( p_device = LIBMTP_Open_Raw_Device( p_raw_device ) ) != NULL )
+ {
+ if( !( psz_name = LIBMTP_Get_Friendlyname( p_device ) ) )
+ if( !( psz_name = LIBMTP_Get_Modelname( p_device ) ) )
+ if( !( psz_name = strdup( N_( "MTP Device" ) ) ) )
+ return VLC_ENOMEM;
+ msg_Info( p_sd, "Found device: %s", psz_name );
+ p_sd->p_sys->i_bus = p_raw_device->bus_location;
+ p_sd->p_sys->i_dev = p_raw_device->devnum;
+ p_sd->p_sys->i_product_id = p_raw_device->device_entry.product_id;
+ if( ( p_track = LIBMTP_Get_Tracklisting_With_Callback( p_device,
+ CountTracks, p_sd ) ) == NULL )
+ msg_Info( p_sd, "No tracks on the device" );
+ else
+ {
+ if( !( p_sd->p_sys->pp_items = calloc( p_sd->p_sys->i_tracks_num,
+ sizeof( input_item_t * ) ) ) )
+ return VLC_ENOMEM;
+ p_sd->p_sys->i_count = 0;
+ while( p_track != NULL )
+ {
+ msg_Dbg( p_sd, "Track found: %s - %s", p_track->artist,
+ p_track->title );
+ AddTrack( p_sd, p_track );
+ p_tmp = p_track;
+ p_track = p_track->next;
+ LIBMTP_destroy_track_t( p_tmp );
+ }
+ }
+ p_sd->p_sys->psz_name = psz_name;
+ LIBMTP_Release_Device( p_device );
+ return VLC_SUCCESS;
+ }
+ else
+ {
+ msg_Info( p_sd, "No device found, after all" );
+ return VLC_EGENERIC;
+ }
+}
+
+static void AddTrack( services_discovery_t *p_sd, LIBMTP_track_t *p_track )
+{
+ input_item_t *p_input;
+ char *psz_string;
+ char *extension;
+
+ extension = rindex( p_track->filename, '.' );
+ if( asprintf( &psz_string, "mtp://%"PRIu32":%"PRIu8":%"PRIu16":%d%s",
+ p_sd->p_sys->i_bus, p_sd->p_sys->i_dev,
+ p_sd->p_sys->i_product_id, p_track->item_id,
+ extension ) == -1 )
+ {
+ msg_Err( p_sd, "Error adding %s, skipping it", p_track->filename );
+ return;
+ }
+ if( ( p_input = input_item_New( p_sd, psz_string,
+ p_track->title ) ) == NULL )
+ {
+ msg_Err( p_sd, "Error adding %s, skipping it", p_track->filename );
+ return;
+ }
+ input_item_SetArtist( p_input, p_track->artist );
+ input_item_SetGenre( p_input, p_track->genre );
+ input_item_SetAlbum( p_input, p_track->album );
+ free( psz_string );
+ if( asprintf( &psz_string, "%d", p_track->tracknumber ) != -1 )
+ {
+ input_item_SetTrackNum( p_input, psz_string );
+ free( psz_string );
+ }
+ if( asprintf( &psz_string, "%d", p_track->rating ) != -1 )
+ {
+ input_item_SetRating( p_input, psz_string );
+ free( psz_string );
+ }
+ input_item_SetDate( p_input, p_track->date );
+ input_item_SetDuration( p_input, p_track->duration * 1000 );
+ services_discovery_AddItem( p_sd, p_input, NULL );
+ p_sd->p_sys->pp_items[p_sd->p_sys->i_count++] = p_input;
+}
+
+static void CloseDevice( services_discovery_t *p_sd )
+{
+ input_item_t **pp_items = p_sd->p_sys->pp_items;
+ int i_i;
+
+ if( pp_items != NULL )
+ {
+ for( i_i = 0; i_i < p_sd->p_sys->i_count; i_i++ )
+ {
+ if( pp_items[i_i] != NULL )
+ {
+ services_discovery_RemoveItem( p_sd, pp_items[i_i] );
+ vlc_gc_decref( pp_items[i_i] );
+ }
+ }
+ free( pp_items );
+ }
+}
+
+static int CountTracks( uint64_t const sent, uint64_t const total,
+ void const * const data )
+{
+ VLC_UNUSED( sent );
+ services_discovery_t *p_sd = (services_discovery_t *)data;
+ p_sd->p_sys->i_tracks_num = total;
+ return 0;
+}