使用gst管道播放多个音频文件

Question

我正在使用gst库播放多个音频文件，并遇到问题：“错误：内部数据流错误”。这是我的代码（没有其他分路器和接收器初始化）：

GstElement *elm1, *elm2; 

elm1 = gst_element_factory_make ("filesrc", "file1.ogg"); 
elm2 = gst_element_factory_make ("filesrc", "file2.ogg"); 

g_object_set (G_OBJECT (elm1), "location", "file1.ogg", NULL); 
g_object_set (G_OBJECT (elm2), "location", "file2.ogg", NULL); 

GstBus *bus; 

bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); 
bus_watch_id = gst_bus_add_watch (bus, bus_call, loop); 
gst_object_unref (bus); 

gst_bin_add_many (GST_BIN (pipeline), elm1, elm2, demuxer, sink, NULL); 

gst_element_link_many (elm1, elm2, demuxer); 

g_signal_connect (demuxer, "pad-added", G_CALLBACK (on_pad_added), sink); 
gst_element_set_state (pipeline, GST_STATE_PLAYING); 

我做错了什么？提前致谢。

Answer 1

您需要侦听文件1的EOS，然后将filesrc更改为文件2。

下列答案应该帮助你 -

“GStreamer dynamically change the filesrc location of a pipeline- No sound”