GES use a still frame from another video

[Andrei Vasiliu]

Hi,

Have a video file (video_file.mp4) of 10 sec

Need to play 15 sec of video as follows:

- the first 5 sec show 1st frame of the video_file.mp4
- the last 10 sec show the whole video_file.mp4

I guess it's possible with GES ... *can anyone advice how?*
The above scenario is simplified, i.e. keeping the pipeline in PAUSED state
for the 1st 5 sec is NOT a solution.

See attached what was already tried.

*Anyone has any examples of GESImageSource
<http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-editing-services/html/GESImageSource.html>
use?*

I'd appreciate any ideas, even the crazy ones :)

Smiles,
Andrei
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//  playground.c

#include <ges/ges.h>

int main (int argc, gchar ** argv)
{
    GESPipeline *pipeline;
    GESTimeline *timeline;
    GESLayer *layer;
    GMainLoop *mainloop;
    
    gst_init (&argc, &argv);
    
    ges_init ();
    
    timeline = ges_timeline_new_audio_video ();
    
    layer = ges_layer_new ();
    
    if (!ges_timeline_add_layer (timeline, layer))
        return -1;
    
    
    /// ************ The interesting part starts here ******************** ///
    
    gchar *video_file_uri = gst_filename_to_uri ("/path/to/video_file.mp4", NULL);
    GESUriClipAsset *video_asset = ges_uri_clip_asset_request_sync (video_file_uri, NULL);
    
    
    /// Trying to add a still video frame
    GESUriClip *first_frame_clip = GES_URI_CLIP (ges_asset_extract (GES_ASSET(video_asset), NULL));
    
    ges_uri_clip_set_is_image(first_frame_clip, TRUE); /// Had big hopes on this, but ges_layer_add_clip() resets it to FALSE
    
    ges_timeline_element_set_start(GES_TIMELINE_ELEMENT(first_frame_clip), 0);
    ges_timeline_element_set_inpoint(GES_TIMELINE_ELEMENT(first_frame_clip), 0);
    ges_timeline_element_set_duration (GES_TIMELINE_ELEMENT(first_frame_clip), 5*GST_SECOND);
    ges_clip_set_supported_formats(GES_CLIP(first_frame_clip), GES_TRACK_TYPE_VIDEO);
    
    ges_layer_add_clip(layer, GES_CLIP(first_frame_clip)); /// resets "is-image" property of first_frame_clip to FALSE
    
    
    /// Adding full video
    ges_layer_add_asset(layer, GES_ASSET(video_asset), 5*GST_SECOND, 0, ges_uri_clip_asset_get_duration(video_asset), GES_TRACK_TYPE_VIDEO);
    
    
    /// ****************************************************************** ///
    
    
    
    ges_timeline_commit(timeline);
    
    g_print("Timeline Time: %" GST_TIME_FORMAT "\r", GST_TIME_ARGS(ges_timeline_get_duration(timeline)));
    
    pipeline = ges_pipeline_new ();
    
    if (!ges_pipeline_set_timeline (pipeline, timeline))
        return -1;
    
    gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
    
    mainloop = g_main_loop_new (NULL, FALSE);
    
    g_main_loop_run (mainloop);
    
    return 0;
}