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camerabin2: keep track of video recording state

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Adds a new variable to keep track of the state of the video
recording in camerabin2. This allows start-capture to reject
new video recording requests when one is already ongoing. This
fixes one of check tests.
This commit is contained in:
Thiago Santos 2011-11-10 16:11:56 -03:00
parent f509960fea
commit c635e4bc3b
2 changed files with 53 additions and 12 deletions
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54
gst/camerabin2/gstcamerabin2.c
View file

@ -368,11 +368,21 @@ gst_camera_bin_start_capture (GstCameraBin2 * camerabin)
GST_DEBUG_OBJECT (camerabin, "Received start-capture");
/* check that we have a valid location */
if (camerabin->mode == MODE_VIDEO && camerabin->location == NULL) {
GST_ELEMENT_ERROR (camerabin, RESOURCE, OPEN_WRITE,
(_("File location is set to NULL, please set it to a valid filename")),
(NULL));
return;
if (camerabin->mode == MODE_VIDEO) {
if (camerabin->location == NULL) {
GST_ELEMENT_ERROR (camerabin, RESOURCE, OPEN_WRITE,
(_("File location is set to NULL, please set it to a valid filename")), (NULL));
return;
}
g_mutex_lock (camerabin->video_capture_mutex);
if (camerabin->video_state != GST_CAMERA_BIN_VIDEO_IDLE) {
GST_WARNING_OBJECT (camerabin, "Another video recording is ongoing"
" (state %d), cannot start a new one", camerabin->video_state);
g_mutex_unlock (camerabin->video_capture_mutex);
return;
}
camerabin->video_state = GST_CAMERA_BIN_VIDEO_STARTING;
}
GST_CAMERA_BIN2_PROCESSING_INC (camerabin);
@ -420,8 +430,13 @@ gst_camera_bin_start_capture (GstCameraBin2 * camerabin)
}
g_signal_emit_by_name (camerabin->src, "start-capture", NULL);
if (camerabin->mode == MODE_VIDEO && camerabin->audio_src)
gst_element_set_state (camerabin->audio_src, GST_STATE_PLAYING);
if (camerabin->mode == MODE_VIDEO) {
if (camerabin->audio_src)
gst_element_set_state (camerabin->audio_src, GST_STATE_PLAYING);
camerabin->video_state = GST_CAMERA_BIN_VIDEO_RECORDING;
g_mutex_unlock (camerabin->video_capture_mutex);
}
/*
* We have to push tags after start capture because the video elements
@ -458,12 +473,19 @@ static void
gst_camera_bin_stop_capture (GstCameraBin2 * camerabin)
{
GST_DEBUG_OBJECT (camerabin, "Received stop-capture");
if (camerabin->src)
g_signal_emit_by_name (camerabin->src, "stop-capture", NULL);
if (camerabin->mode == MODE_VIDEO) {
g_mutex_lock (camerabin->video_capture_mutex);
if (camerabin->video_state == GST_CAMERA_BIN_VIDEO_RECORDING) {
if (camerabin->src)
g_signal_emit_by_name (camerabin->src, "stop-capture", NULL);
if (camerabin->mode == MODE_VIDEO && camerabin->audio_src) {
camerabin->audio_drop_eos = FALSE;
gst_element_send_event (camerabin->audio_src, gst_event_new_eos ());
camerabin->video_state = GST_CAMERA_BIN_VIDEO_FINISHING;
if (camerabin->audio_src) {
camerabin->audio_drop_eos = FALSE;
gst_element_send_event (camerabin->audio_src, gst_event_new_eos ());
}
}
g_mutex_unlock (camerabin->video_capture_mutex);
}
}
@ -535,6 +557,7 @@ gst_camera_bin_dispose (GObject * object)
g_free (camerabin->location);
g_mutex_free (camerabin->preview_list_mutex);
g_mutex_free (camerabin->image_capture_mutex);
g_mutex_free (camerabin->video_capture_mutex);
if (camerabin->src_capture_notify_id)
g_signal_handler_disconnect (camerabin->src,
@ -892,6 +915,7 @@ gst_camera_bin_init (GstCameraBin2 * camera)
camera->flags = DEFAULT_FLAGS;
camera->preview_list_mutex = g_mutex_new ();
camera->image_capture_mutex = g_mutex_new ();
camera->video_capture_mutex = g_mutex_new ();
/* capsfilters are created here as we proxy their caps properties and
* this way we avoid having to store the caps while on NULL state to
@ -1035,9 +1059,14 @@ gst_camera_bin_handle_message (GstBin * bin, GstMessage * message)
case GST_MESSAGE_EOS:{
GstElement *src = GST_ELEMENT (GST_MESSAGE_SRC (message));
if (src == GST_CAMERA_BIN2_CAST (bin)->videosink) {
g_mutex_lock (camerabin->video_capture_mutex);
GST_DEBUG_OBJECT (bin, "EOS from video branch");
g_assert (camerabin->video_state == GST_CAMERA_BIN_VIDEO_FINISHING);
gst_video_capture_bin_post_video_done (GST_CAMERA_BIN2_CAST (bin));
dec_counter = TRUE;
camerabin->video_state = GST_CAMERA_BIN_VIDEO_IDLE;
g_mutex_unlock (camerabin->video_capture_mutex);
}
}
break;
@ -1810,6 +1839,7 @@ gst_camera_bin_change_state (GstElement * element, GstStateChange trans)
gst_tag_setter_reset_tags (GST_TAG_SETTER (camera));
GST_CAMERA_BIN2_RESET_PROCESSING_COUNTER (camera);
camera->video_state = GST_CAMERA_BIN_VIDEO_IDLE;
g_mutex_lock (camera->image_capture_mutex);
g_slist_foreach (camera->image_location_list, (GFunc) g_free, NULL);

11
gst/camerabin2/gstcamerabin2.h
View file

@ -45,6 +45,14 @@ typedef enum
} GstCamFlags;
typedef enum _GstCameraBinVideoState
{
GST_CAMERA_BIN_VIDEO_IDLE=0,
GST_CAMERA_BIN_VIDEO_STARTING=1,
GST_CAMERA_BIN_VIDEO_RECORDING=2,
GST_CAMERA_BIN_VIDEO_FINISHING=3
} GstCameraBinVideoState;
typedef struct _GstCameraBin2 GstCameraBin2;
typedef struct _GstCameraBin2Class GstCameraBin2Class;
@ -119,6 +127,9 @@ struct _GstCameraBin2
gboolean audio_drop_eos;
GMutex *video_capture_mutex;
GstCameraBinVideoState video_state;
/* properties */
gint mode;
gchar *location;