An MPEG1 transcoder.

Original commit message from CVS:
An MPEG1 transcoder.

diff --git a/test/mp1tomp1.c b/test/mp1tomp1.c
new file mode 100644 (file)
index 0000000..a8dba1a
--- /dev/null
+++ b/test/mp1tomp1.c
@@ -0,0 +1,218 @@
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <glib.h>
+#include <gst/gst.h>
+
+int fd;
+char *outfile;
+
+void eof(GstSrc *src) {
+  g_print("have eos, quitting\n");
+  exit(0);
+}
+
+void mp2tomp1(GstElement *parser,GstPad *pad, GstElement *pipeline) {
+  GstElement *parse_audio, *parse_video, *decode, *decode_video, *play, *encode;
+  GstElement *audio_queue, *video_queue;
+  GstElement *audio_thread, *video_thread;
+  GstElement *videoscale;
+  GstElement *fdsink;
+  GstElementFactory *fdsinkfactory;
+
+  g_print("***** a new pad %s was created\n", gst_pad_get_name(pad));
+
+  // connect to audio pad
+  if (0) {
+  //if (strncmp(gst_pad_get_name(pad), "private_stream_1.0", 18) == 0) {
+    gst_plugin_load("ac3parse");
+    gst_plugin_load("ac3dec");
+    // construct internal pipeline elements
+    parse_audio = gst_elementfactory_make("ac3parse","parse_audio");
+    g_return_if_fail(parse_audio != NULL);
+    decode = gst_elementfactory_make("ac3dec","decode_audio");
+    g_return_if_fail(decode != NULL);
+    play = gst_elementfactory_make("audiosink","play_audio");
+    g_return_if_fail(play != NULL);
+
+    // create the thread and pack stuff into it
+    audio_thread = gst_thread_new("audio_thread");
+    g_return_if_fail(audio_thread != NULL);
+    gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(parse_audio));
+    gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(decode));
+    gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(play));
+
+    // set up pad connections
+    gst_element_add_ghost_pad(GST_ELEMENT(audio_thread),
+                              gst_element_get_pad(parse_audio,"sink"));
+    gst_pad_connect(gst_element_get_pad(parse_audio,"src"),
+                    gst_element_get_pad(decode,"sink"));
+    gst_pad_connect(gst_element_get_pad(decode,"src"),
+                    gst_element_get_pad(play,"sink"));
+
+    // construct queue and connect everything in the main pipelie
+    audio_queue = gst_elementfactory_make("queue","audio_queue");
+    gtk_object_set(GTK_OBJECT(audio_queue),"max_level",30,NULL);
+    gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_queue));
+    gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_thread));
+    gst_pad_connect(pad,
+                    gst_element_get_pad(audio_queue,"sink"));
+    gst_pad_connect(gst_element_get_pad(audio_queue,"src"),
+                    gst_element_get_pad(audio_thread,"sink"));
+
+    // set up thread state and kick things off
+    gtk_object_set(GTK_OBJECT(audio_thread),"create_thread",TRUE,NULL);
+    g_print("setting to RUNNING state\n");
+    gst_element_set_state(GST_ELEMENT(audio_thread),GST_STATE_RUNNING);
+    g_print("setting to PLAYING state\n");
+    gst_element_set_state(GST_ELEMENT(audio_thread),GST_STATE_PLAYING);
+  } else if (strncmp(gst_pad_get_name(pad), "audio_", 6) == 0) {
+    gst_plugin_load("mp3parse");
+    gst_plugin_load("mpg123");
+    // construct internal pipeline elements
+    parse_audio = gst_elementfactory_make("mp3parse","parse_audio");
+    g_return_if_fail(parse_audio != NULL);
+    decode = gst_elementfactory_make("mpg123","decode_audio");
+    g_return_if_fail(decode != NULL);
+    play = gst_elementfactory_make("audiosink","play_audio");
+    g_return_if_fail(play != NULL);
+
+    // create the thread and pack stuff into it
+    audio_thread = gst_thread_new("audio_thread");
+    g_return_if_fail(audio_thread != NULL);
+    gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(parse_audio));
+    gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(decode));
+    gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(play));
+
+    // set up pad connections
+    gst_element_add_ghost_pad(GST_ELEMENT(audio_thread),
+                              gst_element_get_pad(parse_audio,"sink"));
+    gst_pad_connect(gst_element_get_pad(parse_audio,"src"),
+                    gst_element_get_pad(decode,"sink"));
+    gst_pad_connect(gst_element_get_pad(decode,"src"),
+                    gst_element_get_pad(play,"sink"));
+
+    // construct queue and connect everything in the main pipelie
+    audio_queue = gst_elementfactory_make("queue","audio_queue");
+    gtk_object_set(GTK_OBJECT(audio_queue),"max_level",30,NULL);
+    gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_queue));
+    gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_thread));
+    gst_pad_connect(pad,
+                    gst_element_get_pad(audio_queue,"sink"));
+    gst_pad_connect(gst_element_get_pad(audio_queue,"src"),
+                    gst_element_get_pad(audio_thread,"sink"));
+
+    // set up thread state and kick things off
+    gtk_object_set(GTK_OBJECT(audio_thread),"create_thread",TRUE,NULL);
+    g_print("setting to RUNNING state\n");
+    gst_element_set_state(GST_ELEMENT(audio_thread),GST_STATE_RUNNING);
+    g_print("setting to PLAYING state\n");
+    gst_element_set_state(GST_ELEMENT(audio_thread),GST_STATE_PLAYING);
+  } else if (strncmp(gst_pad_get_name(pad), "video_", 6) == 0) {
+  //} else if (0) {
+
+    gst_plugin_load("mp1videoparse");
+    gst_plugin_load("mpeg_play");
+    gst_plugin_load("mpeg2enc");
+    // construct internal pipeline elements
+    parse_video = gst_elementfactory_make("mp1videoparse","parse_video");
+    g_return_if_fail(parse_video != NULL);
+    decode_video = gst_elementfactory_make("mpeg_play","decode_video");
+    g_return_if_fail(decode_video != NULL);
+    encode = gst_elementfactory_make("mpeg2enc","encode");
+    g_return_if_fail(encode != NULL);
+    //gtk_object_set(GTK_OBJECT(show),"width",640, "height", 480,NULL);
+    fd = open(outfile,O_CREAT|O_RDWR|O_TRUNC);
+
+    fdsinkfactory = gst_elementfactory_find("fdsink");
+    g_return_if_fail(fdsinkfactory != NULL);
+    fdsink = gst_elementfactory_create(fdsinkfactory,"fdsink");
+    g_return_if_fail(fdsink != NULL);
+    gtk_object_set(GTK_OBJECT(fdsink),"fd",fd,NULL);
+
+    // create the thread and pack stuff into it
+    video_thread = gst_thread_new("video_thread");
+    g_return_if_fail(video_thread != NULL);
+    gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(parse_video));
+    gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(decode_video));
+    gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(encode));
+    gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(fdsink));
+
+    // set up pad connections
+    gst_element_add_ghost_pad(GST_ELEMENT(video_thread),
+                              gst_element_get_pad(parse_video,"sink"));
+    gst_pad_connect(gst_element_get_pad(parse_video,"src"),
+                    gst_element_get_pad(decode_video,"sink"));
+    gst_pad_connect(gst_element_get_pad(decode_video,"src"),
+                    gst_element_get_pad(encode,"sink"));
+    gst_pad_connect(gst_element_get_pad(encode,"src"),
+                    gst_element_get_pad(fdsink,"sink"));
+
+    // construct queue and connect everything in the main pipeline
+    video_queue = gst_elementfactory_make("queue","video_queue");
+    gtk_object_set(GTK_OBJECT(video_queue),"max_level",30,NULL);
+    gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(video_queue));
+    gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(video_thread));
+    gst_pad_connect(pad,
+                    gst_element_get_pad(video_queue,"sink"));
+    gst_pad_connect(gst_element_get_pad(video_queue,"src"),
+                    gst_element_get_pad(video_thread,"sink"));
+
+    // set up thread state and kick things off
+    gtk_object_set(GTK_OBJECT(video_thread),"create_thread",TRUE,NULL);
+    g_print("setting to RUNNING state\n");
+    gst_element_set_state(GST_ELEMENT(video_thread),GST_STATE_RUNNING);
+    g_print("setting to PLAYING state\n");
+    gst_element_set_state(GST_ELEMENT(video_thread),GST_STATE_PLAYING);
+  }
+  g_print("\n");
+}
+
+int main(int argc,char *argv[]) {
+  GstPipeline *pipeline;
+  GstElement *src, *parse, *out;
+  GstPad *infopad;
+  int i,c;
+
+  g_print("have %d args\n",argc);
+
+  gst_init(&argc,&argv);
+  gst_plugin_load("mpeg1parse");
+
+  pipeline = gst_pipeline_new("pipeline");
+  g_return_if_fail(pipeline != NULL);
+
+  if (strstr(argv[1],"video_ts")) {
+    src = gst_elementfactory_make("dvdsrc","src");
+    g_print("using DVD source\n");
+  } else
+    src = gst_elementfactory_make("disksrc","src");
+
+  g_return_if_fail(src != NULL);
+  gtk_object_set(GTK_OBJECT(src),"location",argv[1],NULL);
+  g_print("should be using file '%s'\n",argv[1]);
+
+  g_print("should be using output file '%s'\n",argv[2]);
+  outfile = argv[2];
+
+  parse = gst_elementfactory_make("mpeg1parse","parse");
+  g_return_if_fail(parse != NULL);
+
+  gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(src));
+  gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(parse));
+
+  gtk_signal_connect(GTK_OBJECT(parse),"new_pad",mp2tomp1, pipeline);
+
+  gtk_signal_connect(GTK_OBJECT(src),"eos",GTK_SIGNAL_FUNC(eof),NULL);
+
+  gst_pad_connect(gst_element_get_pad(src,"src"),
+                  gst_element_get_pad(parse,"sink"));
+
+  g_print("setting to RUNNING state\n");
+  gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_RUNNING);
+
+  while (1) {
+    gst_src_push(GST_SRC(src));
+  }
+}