+/*!
+ * This file is part of CameraPlus.
+ *
+ * Copyright (C) 2012 Mohammed Sameer <msameer@foolab.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "sounds.h"
+#include <QDebug>
+#include "qtcamconfig.h"
+
+#define CAMERA_IMAGE_START_SOUND_ID "camera-image-start"
+#define CAMERA_IMAGE_END_SOUND_ID "camera-image-end"
+#define CAMERA_VIDEO_START_SOUND_ID "camera-video-start"
+#define CAMERA_VIDEO_STOP_SOUND_ID "camera-video-stop"
+
+// TODO: video start sound should block
+// TODO: video end sound should not appear in the video
+// TODO: monitor pulse audio death and re-upload our samples
+// TODO: if we are using headphones then sound volume might be loud. Detect and lower it.
+Sounds::Sounds(QObject *parent) :
+ QObject(parent),
+ m_muted(false),
+ m_ctx(0),
+ m_conf(0) {
+
+ // No idea why but canberra will not cache without that!!!
+ setenv("CANBERRA_EVENT_LOOKUP", "1", 1);
+}
+
+Sounds::~Sounds() {
+ if (m_ctx) {
+ ca_context_destroy(m_ctx);
+ m_ctx = 0;
+ }
+}
+
+void Sounds::setConfig(QtCamConfig *conf) {
+ m_conf = conf;
+}
+
+void Sounds::imageCaptureStarted() {
+ if (isMuted() || !m_ctx) {
+ return;
+ }
+
+ play(CAMERA_IMAGE_START_SOUND_ID);
+}
+
+void Sounds::imageCaptureEnded() {
+ if (isMuted() || !m_ctx) {
+ return;
+ }
+
+ play(CAMERA_IMAGE_END_SOUND_ID);
+}
+
+void Sounds::videoRecordingStarted() {
+ if (isMuted() || !m_ctx) {
+ return;
+ }
+
+ play(CAMERA_VIDEO_START_SOUND_ID);
+}
+
+void Sounds::videoRecordingEnded() {
+ if (isMuted() || !m_ctx) {
+ return;
+ }
+
+ play(CAMERA_VIDEO_STOP_SOUND_ID);
+}
+
+bool Sounds::isMuted() const {
+ return m_muted;
+}
+
+void Sounds::setMuted(bool mute) {
+ if (mute != m_muted) {
+ m_muted = mute;
+ emit muteChanged();
+ }
+}
+
+void Sounds::reload() {
+ if (m_ctx) {
+ ca_context_destroy(m_ctx);
+ m_ctx = 0;
+ }
+
+ if (int code = ca_context_create(&m_ctx) != CA_SUCCESS) {
+ qWarning() << "Failed to create canberra context" << ca_strerror(code) << code;
+ return;
+ }
+
+ if (int code = ca_context_set_driver(m_ctx, "pulse") != CA_SUCCESS) {
+ qWarning() << "Failed to set canberra driver to pulse audio" << ca_strerror(code) << code;
+ }
+
+ if (int code = ca_context_change_props(m_ctx,
+ CA_PROP_MEDIA_ROLE, "camera-sound-effect",
+ NULL) != CA_SUCCESS) {
+ qWarning() << "Failed to set context properties" << ca_strerror(code) << code;
+ }
+
+ if (int code = ca_context_open(m_ctx) != CA_SUCCESS) {
+ qWarning() << "Failed to open canberra context" << ca_strerror(code) << code;
+ ca_context_destroy(m_ctx);
+ m_ctx = 0;
+ return;
+ }
+
+ cache(m_conf->imageCaptureStartedSound(), CAMERA_IMAGE_START_SOUND_ID);
+ cache(m_conf->imageCaptureEndedSound(), CAMERA_IMAGE_END_SOUND_ID);
+ cache(m_conf->videoRecordingStartedSound(), CAMERA_VIDEO_START_SOUND_ID);
+ cache(m_conf->videoRecordingEndedSound(), CAMERA_VIDEO_STOP_SOUND_ID);
+}
+
+void Sounds::cache(const QString& path, const char *id) {
+ if (path.isEmpty()) {
+ return;
+ }
+
+ if (int code = ca_context_cache(m_ctx,
+ CA_PROP_EVENT_ID, id,
+ CA_PROP_MEDIA_FILENAME, path.toLocal8Bit().data(),
+ CA_PROP_CANBERRA_CACHE_CONTROL, "permanent",
+ NULL) != CA_SUCCESS) {
+ qWarning() << "Failed to cache" << path << ca_strerror(code) << code;
+ }
+}
+
+void Sounds::play(const char *id) {
+ if (int code = ca_context_play(m_ctx, 0,
+ CA_PROP_CANBERRA_VOLUME, "0.0", // Odd, volume has to be a char *
+ CA_PROP_EVENT_ID, id,
+ CA_PROP_MEDIA_ROLE, "camera-sound-effect",
+ NULL) != CA_SUCCESS) {
+ qDebug() << "Failed to play sound" << ca_strerror(code) << code;
+ }
+}
projects / harmattan / cameraplus / commitdiff