147 lines
5.5 KiB
C
147 lines
5.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2010 Thomas Martitz
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <jni.h>
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#include <stdio.h>
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#include <sys/mman.h>
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#include "notification.h"
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#include "appevents.h"
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#include "metadata.h"
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#include "albumart.h"
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#include "misc.h"
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#include "thread.h"
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#include "debug.h"
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extern JNIEnv *env_ptr;
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extern jclass RockboxService_class;
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extern jobject RockboxService_instance;
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static jmethodID updateNotification, finishNotification;
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static jobject NotificationManager_instance;
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static jstring title, artist, album, albumart;
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/* completely arbitrary dimensions. neded for find_albumart() */
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static const struct dim dim = { .width = 200, .height = 200 };
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#define NZV(a) (a && a[0])
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/*
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* notify about track change, and show track info */
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static void track_changed_callback(void *param)
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{
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struct mp3entry* id3 = (struct mp3entry*)param;
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JNIEnv e = *env_ptr;
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if (id3)
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{
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/* passing NULL to DeleteLocalRef() is OK */
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e->DeleteLocalRef(env_ptr, title);
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e->DeleteLocalRef(env_ptr, artist);
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e->DeleteLocalRef(env_ptr, album);
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e->DeleteLocalRef(env_ptr, albumart);
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char buf[200];
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const char * ptitle = id3->title;
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if (!ptitle && *id3->path)
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{ /* pass the filename as title if id3 info isn't available */
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ptitle = strip_extension(buf, sizeof(buf), strrchr(id3->path,'/') + 1);
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}
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title = e->NewStringUTF(env_ptr, ptitle ?: "");
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artist = e->NewStringUTF(env_ptr, id3->artist ?: "");
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album = e->NewStringUTF(env_ptr, id3->album ?: "");
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albumart = NULL;
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if (id3->has_embedded_albumart && id3->albumart.type == AA_TYPE_JPG)
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{ /* extract albumart to a temporary file using mmap() */
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snprintf(buf, sizeof(buf), "/sdcard/rockbox/.temp_albumart_%d.jpg",
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thread_self());
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int dst_fd = creat(buf, 0666);
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if (dst_fd >= 0)
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{
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int src_fd = open(id3->path, O_RDONLY);
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off_t o_pos = id3->albumart.pos;
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off_t pa_pos = o_pos & ~(sysconf(_SC_PAGE_SIZE) - 1);
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if (src_fd >= 0)
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{ /* align to page boundary */
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int pos_diff = o_pos - pa_pos;
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unsigned char* p = mmap(NULL, id3->albumart.size + pos_diff,
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PROT_READ, MAP_SHARED, src_fd, pa_pos);
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if (p != MAP_FAILED)
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{
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write(dst_fd, p + pos_diff, id3->albumart.size);
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munmap(p, id3->albumart.size + pos_diff);
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albumart = e->NewStringUTF(env_ptr, buf);
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}
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close(src_fd);
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}
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close(dst_fd);
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}
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}
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else if (find_albumart(id3, buf, sizeof(buf), &dim))
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{
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albumart = e->NewStringUTF(env_ptr, buf);
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}
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e->CallVoidMethod(env_ptr, NotificationManager_instance,
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updateNotification, title, artist, album, albumart);
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}
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}
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/*
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* notify about track finishing */
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static void track_finished_callback(void *param)
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{
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(void)param;
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JNIEnv e = *env_ptr;
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e->CallVoidMethod(env_ptr, NotificationManager_instance,
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finishNotification);
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/* delete temporary albumart file */
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char buf[MAX_PATH];
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snprintf(buf, sizeof(buf), "/sdcard/rockbox/.temp_albumart_%d.jpg",
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thread_self());
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unlink(buf);
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}
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void notification_init(void)
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{
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JNIEnv e = *env_ptr;
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jfieldID nNM = e->GetFieldID(env_ptr, RockboxService_class,
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"mFgRunner", "Lorg/rockbox/Helper/RunForegroundManager;");
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NotificationManager_instance = e->GetObjectField(env_ptr,
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RockboxService_instance, nNM);
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if (NotificationManager_instance == NULL)
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{
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DEBUGF("Failed to get RunForegroundManager instance. Performance will be bad");
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return;
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}
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jclass class = e->GetObjectClass(env_ptr, NotificationManager_instance);
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updateNotification = e->GetMethodID(env_ptr, class, "updateNotification",
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"(Ljava/lang/String;"
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"Ljava/lang/String;"
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"Ljava/lang/String;"
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"Ljava/lang/String;)V");
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finishNotification = e->GetMethodID(env_ptr, class, "finishNotification",
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"()V");
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add_event(PLAYBACK_EVENT_TRACK_CHANGE, false, track_changed_callback);
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add_event(PLAYBACK_EVENT_TRACK_FINISH, false, track_finished_callback);
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}
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