This example shows that some of the information available from the emotion object, like the media file play length, aspect ratio, etc. can be not available just after setting the file to the emotion object.
One callback is declared for each of the following signals, and some of the info about the file is displayed. Also notice that the order that these signals are emitted can change depending on the module being used. Following is the full source code of this example:
#define EFL_EO_API_SUPPORT
#define EFL_BETA_API_SUPPORT
#include <Ecore.h>
#include <Evas.h>
#include <stdio.h>
#define WIDTH (320)
#define HEIGHT (240)
static void
{
int w, h;
printf("meta title: %s\n",
printf("seek position: %0.3f\n",
printf("play length: %0.3f\n",
printf("is seekable: %d\n",
printf("video geometry: %dx%d\n", w, h);
printf("video width / height ratio: %0.3f\n",
printf("\n");
}
{
printf(">>> Emotion object started playback.\n");
_display_info(o);
}
{
printf(">>> Emotion object finished playback.\n");
_display_info(o);
}
{
printf(">>> Emotion object open done.\n");
_display_info(o);
}
{
printf(">>> Emotion object first position update.\n");
eo_do(o, eo_event_callback_del(EMOTION_OBJECT_EVENT_POSITION_UPDATE,
_position_update_cb, NULL));
_display_info(o);
}
_frame_decode_cb(void *data EINA_UNUSED,
{
printf(">>> Emotion object first frame decode.\n");
eo_do(o, eo_event_callback_del(EMOTION_OBJECT_EVENT_FRAME_DECODE,
_frame_decode_cb, NULL));
_display_info(o);
}
_decode_stop_cb(void *data EINA_UNUSED,
{
printf(">>> Emotion object decode stop.\n");
_display_info(o);
}
_frame_resize_cb(void *data EINA_UNUSED,
{
printf(">>> Emotion object frame resize.\n");
_display_info(o);
}
{ EMOTION_OBJECT_EVENT_PLAYBACK_STARTED, _playback_started_cb },
{ EMOTION_OBJECT_EVENT_PLAYBACK_FINISHED, _playback_finished_cb },
{ EMOTION_OBJECT_EVENT_OPEN_DONE, _open_done_cb },
{ EMOTION_OBJECT_EVENT_POSITION_UPDATE, _position_update_cb },
{ EMOTION_OBJECT_EVENT_FRAME_DECODE, _frame_decode_cb },
{ EMOTION_OBJECT_EVENT_DECODE_STOP, _decode_stop_cb },
{ EMOTION_OBJECT_EVENT_FRAME_RESIZE, _frame_resize_cb },
{ NULL, NULL }
};
static void
{
(EMOTION_OBJECT_EVENT_PLAYBACK_STARTED, _playback_started_cb, NULL));
}
int
main(int argc, const char *argv[])
{
Ecore_Evas *ee;
const char *filename = NULL;
const char *module = NULL;
if (argc < 2)
{
printf("At least one argument is necessary. Usage:\n");
printf("\t%s <filename> [module_name]\n", argv[0]);
}
filename = argv[1];
if (argc >= 3)
module = argv[2];
return EXIT_FAILURE;
if (!ee)
evas_object_name_set(bg, "our dear rectangle");
if (!emotion_object_init(em, module))
fprintf(stderr, "Emotion: \"%s\" module could not be initialized.\n", module);
_display_info(em);
_setup_emotion_callbacks(em);
fprintf(stderr, "Emotion: Could not load the file \"%s\"\n", filename);
return 0;
return -1;
}