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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <gst/gst.h>
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extern gboolean _gst_plugin_spew;
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static int ac3fd;
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static gchar *desired_stream;
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void mpeg2parse_write_ac3(GstPad *pad,GstBuffer *buf) {
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g_print(".");
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// g_print("MPEG2PARSE: got AC3 buffer of size %d\n",GST_BUFFER_SIZE(buf));
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write(ac3fd,GST_BUFFER_DATA(buf),GST_BUFFER_SIZE(buf));
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gst_buffer_unref(buf);
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}
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void mpeg2parse_info_chain(GstPad *pad,GstBuffer *buf) {
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// g_print("MPEG2PARSE: got buffer of size %d\n",GST_BUFFER_SIZE(buf));
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gst_buffer_unref(buf);
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}
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void mpeg2parse_newpad(GstElement *parser,GstPad *pad) {
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GstPad *infopad;
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g_print("MPEG2PARSE: have new pad \"%s\" from parser\n",
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gst_pad_get_name(pad));
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infopad = gst_pad_new("sink",GST_PAD_SINK);
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if (strcmp(gst_pad_get_name(pad),desired_stream) == 0)
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gst_pad_set_chain_function(infopad,mpeg2parse_write_ac3);
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else
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gst_pad_set_chain_function(infopad,mpeg2parse_info_chain);
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gst_pad_connect(pad,infopad);
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}
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int main(int argc,char *argv[]) {
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GstPipeline *pipeline;
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GstElement *src, *parse, *out;
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GstPad *infopad;
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int i,c;
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g_print("have %d args\n",argc);
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_gst_plugin_spew = TRUE;
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gst_init(&argc,&argv);
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// gst_plugin_load("mpeg2parse");
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gst_plugin_load_all();
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ac3fd = creat("output.ac3",S_IREAD|S_IWRITE);
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pipeline = gst_pipeline_new("pipeline");
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g_return_if_fail(pipeline != NULL);
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if (strstr(argv[1],"video_ts")) {
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src = gst_elementfactory_make("dvdsrc","src");
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g_print("using DVD source\n");
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} else
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src = gst_elementfactory_make("disksrc","src");
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g_return_if_fail(src != NULL);
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gtk_object_set(GTK_OBJECT(src),"location",argv[1],NULL);
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if (argc >= 3) {
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gtk_object_set(GTK_OBJECT(src),"bytesperread",atoi(argv[2]),NULL);
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g_print("block size is %d\n",atoi(argv[2]));
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}
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g_print("should be using file '%s'\n",argv[1]);
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parse = gst_elementfactory_make("mpeg2parse","parse");
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g_return_if_fail(parse != NULL);
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gtk_signal_connect(GTK_OBJECT(parse),"new_pad",mpeg2parse_newpad,NULL);
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(src));
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(parse));
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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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g_print("setting to RUNNING state\n");
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gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_RUNNING);
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if (argc >= 4) c = atoi(argv[3]);
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else c = 4;
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g_print("c is %d\n",c);
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if (argc >= 5) desired_stream = argv[4];
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else desired_stream = "private_stream_1.0";
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g_print("\n");
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for (i=0;i<c;i++) {
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g_print("\n");
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gst_src_push(GST_SRC(src));
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}
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}
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