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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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77 lines
2 KiB
C
77 lines
2 KiB
C
#include <gst/gst.h>
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void eof(GstSrc *src) {
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g_print("have eof, quitting\n");
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exit(0);
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}
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int main(int argc,char *argv[]) {
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GstType *type;
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GList *factories;
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GstElementFactory *parsefactory;
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GstElement *bin, *src, *parse, *sink;
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GList *padlist;
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guchar *filename;
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glong length = 0, size = 4180, skip = 8360, offset = 0;
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if (argc == 2)
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filename = argv[1];
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else {
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g_print("sorry, need a filename now\n");
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exit(1);
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}
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gst_init(&argc,&argv);
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gst_plugin_load_all();
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bin = gst_bin_new("bin");
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src = gst_asyncdisksrc_new("src");
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g_print("created disksrc\n");
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gtk_object_set(GTK_OBJECT(src),"location",filename,NULL);
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length = gst_util_get_long_arg(GST_OBJECT(src),"length");
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g_print("file is %d bytes long\n",length);
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/* now it's time to get the parser */
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type = gst_type_get_by_mime("audio/mp3");
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factories = gst_type_get_sinks(type);
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if (factories != NULL)
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parsefactory = GST_ELEMENTFACTORY(factories->data);
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else {
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g_print("sorry, can't find anyone registered to sink 'mp3'\n");
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return 1;
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}
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parse = gst_elementfactory_create(parsefactory,"parser");
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if (parse == NULL) {
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g_print("sorry, couldn't create parser\n");
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return 1;
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}
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sink = gst_audiosink_new("audiosink");
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gtk_signal_connect(GTK_OBJECT(src),"eof",
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GTK_SIGNAL_FUNC(eof),NULL);
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/* add objects to the main pipeline */
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gst_bin_add(GST_BIN(bin),src);
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gst_bin_add(GST_BIN(bin),parse);
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gst_bin_add(GST_BIN(bin),sink);
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/* connect src to sink */
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gst_pad_connect(gst_element_get_pad(src,"src"),
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gst_element_get_pad(parse,"sink"));
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gst_pad_connect(gst_element_get_pad(parse,"src"),
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gst_element_get_pad(sink,"sink"));
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while(offset < length) {
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gst_src_push_region(GST_SRC(src),offset,size);
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offset += skip;
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}
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gst_object_destroy(GST_OBJECT(sink));
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gst_object_destroy(GST_OBJECT(parse));
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gst_object_destroy(GST_OBJECT(src));
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gst_object_destroy(GST_OBJECT(bin));
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}
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