How to segment seek in dynamic pipeline

[xmufzy]

Hi Thibault
     I can add the transition now,the codes:
    

    GESClip *tr ;
    GESAsset *asset;
    asset = ges_asset_request (GES_TYPE_TRANSITION_CLIP, "crossfade", NULL);
    tr = ges_layer_add_asset (layer, asset, 5*GST_SECOND, 0, 1*GST_SECOND,
GES_TRACK_TYPE_VIDEO);

The reason for the failure is that ges_transition_clip_new() only created
the audio transition.But there's only 1 audio  in the layer.





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