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androidmedia: Drop the first buffer to have proper timestamping

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Youness Alaoui 2012-10-23 13:54:46 -04:00 committed by Nicolas Dufresne
parent 0083adbbed
commit 4856d22b9f
1 changed files with 29 additions and 19 deletions
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48
sys/androidcamera/gstahcsrc.c
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@ -212,11 +212,35 @@ gst_ahc_src_on_preview_frame (jbyteArray data, gpointer user_data)
GstAHCSrc *self = GST_AHC_SRC (user_data);
JNIEnv *env = gst_dvm_get_env ();
GstBuffer *buffer;
GstDataQueueItem *item = g_slice_new0 (GstDataQueueItem);
FreeFuncBuffer *malloc_data = g_slice_new0 (FreeFuncBuffer);
GstDataQueueItem *item = NULL;
FreeFuncBuffer *malloc_data = NULL;
GstClockTime timestamp = GST_CLOCK_TIME_NONE;
GstClockTime duration = 0;
GstClock *clock;
if ((clock = GST_ELEMENT_CLOCK (self))) {
GstClockTime base_time = GST_ELEMENT_CAST (self)->base_time;
GstClockTime current_ts;
gst_object_ref (clock);
current_ts = gst_clock_get_time (clock) - base_time;
if (GST_CLOCK_TIME_IS_VALID (self->previous_ts)) {
timestamp = self->previous_ts;
duration = current_ts - self->previous_ts;
} else {
/* Drop the first buffer */
gst_ah_camera_add_callback_buffer (self->camera, data);
return;
}
self->previous_ts = current_ts;
gst_object_unref (clock);
gst_base_src_set_do_timestamp (GST_BASE_SRC (self), FALSE);
} else {
gst_base_src_set_do_timestamp (GST_BASE_SRC (self), TRUE);
}
//GST_WARNING_OBJECT (self, "Received data buffer %p", data);
malloc_data = g_slice_new0 (FreeFuncBuffer);
malloc_data->self = self;
malloc_data->array = (*env)->NewGlobalRef (env, data);
malloc_data->data = (*env)->GetByteArrayElements (env, data, NULL);
@ -226,24 +250,12 @@ gst_ahc_src_on_preview_frame (jbyteArray data, gpointer user_data)
GST_BUFFER_SIZE (buffer) = self->buffer_size;
GST_BUFFER_MALLOCDATA (buffer) = (gpointer) malloc_data;
GST_BUFFER_FREE_FUNC (buffer) = gst_ahc_src_buffer_free_func;
GST_BUFFER_DURATION (buffer) = 0;
GST_BUFFER_TIMESTAMP (buffer) = GST_CLOCK_TIME_NONE;
if ((clock = GST_ELEMENT_CLOCK (self))) {
GstClockTime base_time = GST_ELEMENT_CAST (self)->base_time;
GstClockTime current_ts;
gst_object_ref (clock);
current_ts = gst_clock_get_time (clock) - base_time;
if (GST_CLOCK_TIME_IS_VALID (self->previous_ts)) {
GST_BUFFER_TIMESTAMP (buffer) = self->previous_ts;
GST_BUFFER_DURATION (buffer) = current_ts - self->previous_ts;
}
self->previous_ts = current_ts;
gst_object_unref (clock);
}
GST_BUFFER_DURATION (buffer) = duration;
GST_BUFFER_TIMESTAMP (buffer) = timestamp;
gst_buffer_set_caps (buffer, self->caps);
item = g_slice_new0 (GstDataQueueItem);
item->object = GST_MINI_OBJECT (buffer);
item->size = GST_BUFFER_SIZE (buffer);
item->duration = GST_BUFFER_DURATION (buffer);
@ -481,8 +493,6 @@ gst_ahc_src_create (GstPushSrc * src, GstBuffer ** buffer)
if (!gst_data_queue_pop (self->queue, &item))
return GST_FLOW_WRONG_STATE;
//GST_WARNING_OBJECT (self, "Received data buffer %p", data);
*buffer = GST_BUFFER (item->object);
g_slice_free (GstDataQueueItem, item);