gstreamer/test/mp2toavi.c

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <glib.h>
#include <gst/gst.h>

GstElement *mux;
GstElement *merge_subtitles;

void 
eof (GstElement *src) 
{
  g_print("have eos, quitting\n");
  exit(0);
}

void 
frame_encoded (GstElement *element, gint framenum, gpointer data) 
{
  gulong frame_size;
  static gulong total = 0;

  frame_size = gst_util_get_long_arg(G_OBJECT(element),"last_frame_size");

  total+=frame_size;

  g_print("encoded frame %d %ld %ld\n", framenum, frame_size, total/(framenum+1));
}

void 
mp2tomp1_new_pad (GstElement *parser,GstPad *pad, GstElement *pipeline) 
{
  GstElement *parse_audio, *decode, *decode_video, *play, *encode, *audio_resample;
  GstElement *smooth, *median;
  GstElement *audio_queue, *video_queue;
  GstElement *audio_thread, *video_thread;
  GstElement *videoscale, *audio_encode;

  g_print("***** a new pad %s was created\n", gst_pad_get_name(pad));
  gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_PAUSED);

  // connect to audio pad
  if (strncmp (gst_pad_get_name (pad), "private_stream_1.0", 18) == 0) {
    GstPad *newpad;

    // construct internal pipeline elements
    parse_audio = gst_elementfactory_make("ac3parse","parse_audio");
    g_return_if_fail(parse_audio != NULL);
    g_object_set(G_OBJECT(parse_audio),"skip", 15, NULL);
    decode = gst_elementfactory_make("ac3dec","decode_audio");
    g_return_if_fail(decode != NULL);
    audio_resample = gst_elementfactory_make("audioscale","audioscale");
    g_return_if_fail(audio_resample != NULL);
    g_object_set(G_OBJECT(audio_resample),"frequency", 44100, NULL);

    audio_encode = gst_elementfactory_make("mpegaudio","audio_encode");
    g_return_if_fail(audio_encode != 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(decode));
    gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(audio_resample));
    gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(audio_encode));

    newpad = gst_element_request_pad_by_name (mux, "audio_[00-08]");
    g_assert (newpad != NULL);

    // set up pad connections
    gst_element_add_ghost_pad(GST_ELEMENT(audio_thread),
                              gst_element_get_pad(decode, "sink"), "sink");
    gst_element_connect (decode, "src", audio_resample, "sink");
    gst_element_connect (audio_resample, "src", audio_encode, "sink");
    gst_pad_connect (gst_element_get_pad (audio_encode, "src"), newpad);

    // construct queue and connect everything in the main pipelie
    audio_queue = gst_elementfactory_make("queue","audio_queue");
    g_object_set(G_OBJECT(audio_queue),"max_level",1,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
    g_object_set(G_OBJECT(audio_thread),"create_thread",TRUE,NULL);
    g_print("setting to READY state\n");
    gst_element_set_state(GST_ELEMENT(audio_thread),GST_STATE_READY);
  } else if (strncmp(gst_pad_get_name(pad), "subtitle_stream_4", 17) == 0) {
    gst_pad_connect(pad,
                    gst_element_get_pad(merge_subtitles,"subtitle"));
  } else if (strncmp(gst_pad_get_name(pad), "audio_", 6) == 0) {
    // 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("osssink","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"),"sink");
    gst_element_connect (parse_audio, "src", decode, "sink");
    gst_element_connect (decode, "src", play, "sink");

    // construct queue and connect everything in the main pipelie
    audio_queue = gst_elementfactory_make("queue","audio_queue");
    g_object_set(G_OBJECT(audio_queue),"max_level",1,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
    g_object_set(G_OBJECT(audio_thread),"create_thread",TRUE,NULL);
    g_print("setting to READY state\n");
    gst_element_set_state(GST_ELEMENT(audio_thread),GST_STATE_READY);
  } else if (strncmp(gst_pad_get_name(pad), "video_", 6) == 0) {
    GstPad *newpad;

    // construct internal pipeline elements
    decode_video = gst_elementfactory_make("mpeg2dec","decode_video");
    g_return_if_fail(decode_video != NULL);
    merge_subtitles = gst_elementfactory_make("mpeg2subt","merge_subtitles");
    g_return_if_fail(merge_subtitles != NULL);
    videoscale = gst_elementfactory_make("videoscale","videoscale");
    g_return_if_fail(videoscale != NULL);
    //g_object_set(G_OBJECT(videoscale),"width",352, "height", 288,NULL);
    g_object_set(G_OBJECT(videoscale),"width",640, "height", 480,NULL);
    median = gst_elementfactory_make("median","median");
    g_return_if_fail(median != NULL);
    g_object_set(G_OBJECT(median),"filtersize",9,NULL);
    g_object_set(G_OBJECT(median),"active",TRUE,NULL);
    smooth = gst_elementfactory_make("smooth","smooth");
    g_return_if_fail(smooth != NULL);
    g_object_set(G_OBJECT(smooth),"filtersize",5,NULL);
    g_object_set(G_OBJECT(smooth),"tolerance",9,NULL);
    g_object_set(G_OBJECT(smooth),"active",FALSE,NULL);
    encode = gst_elementfactory_make("winenc","encode");
    g_return_if_fail(encode != NULL);
    g_signal_connectc(G_OBJECT(encode),"frame_encoded",G_CALLBACK(frame_encoded),NULL,FALSE);
    g_object_set(G_OBJECT(encode),"bitrate",800*4,NULL);
    g_object_set(G_OBJECT(encode),"quality",10000,NULL);
    //g_object_set(G_OBJECT(encode),"compression",NULL,NULL);
    //encode = gst_elementfactory_make("mpeg1encoder","encode");
    //g_object_set(G_OBJECT(show),"width",640, "height", 480,NULL);

    newpad = gst_element_request_pad_by_name (mux, "video_[00-08]");
    g_assert (newpad != 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 (decode_video));
    gst_bin_add (GST_BIN (video_thread), GST_ELEMENT (merge_subtitles));
    gst_bin_add (GST_BIN (video_thread), GST_ELEMENT (median));
    gst_bin_add (GST_BIN (video_thread), GST_ELEMENT (smooth));
    gst_bin_add (GST_BIN (video_thread), GST_ELEMENT (videoscale));
    gst_bin_add (GST_BIN (video_thread), GST_ELEMENT (encode));

    // set up pad connections
    gst_element_add_ghost_pad (GST_ELEMENT (video_thread),
                               gst_element_get_pad (decode_video, "sink"), "sink");
    gst_pad_connect (gst_element_get_pad (decode_video, "src"),
                     gst_element_get_pad (median, "sink"));
    gst_pad_connect (gst_element_get_pad (median, "src"),
                     gst_element_get_pad (merge_subtitles, "video"));
    gst_pad_connect (gst_element_get_pad (merge_subtitles, "src"),
                     gst_element_get_pad (videoscale, "sink"));
    gst_pad_connect (gst_element_get_pad (videoscale, "src"),
                     gst_element_get_pad (smooth, "sink"));
    gst_pad_connect (gst_element_get_pad (smooth, "src"),
                     gst_element_get_pad (encode, "sink"));
    gst_pad_connect (gst_element_get_pad (encode, "src"), newpad);

    // construct queue and connect everything in the main pipeline
    video_queue = gst_elementfactory_make("queue","video_queue");
    g_object_set(G_OBJECT(video_queue),"max_level",1,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
    g_object_set(G_OBJECT(video_thread),"create_thread",TRUE,NULL);
    g_print("setting to READY state\n");
    gst_element_set_state(GST_ELEMENT(video_thread),GST_STATE_READY);
  }
  g_print("\n");
  gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
}

int 
main (int argc,char *argv[]) 
{
  GstElement *pipeline, *src, *parse;
  GstElement *fdsink;
  int fd;

  g_print ("have %d args\n", argc);

  gst_init (&argc ,&argv);

  pipeline = gst_pipeline_new ("pipeline");
  g_return_val_if_fail (pipeline != NULL, -1);

  /* create an input element */
  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_val_if_fail (src != NULL, -1);
  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]);

  /* the parser */
  parse = gst_elementfactory_make ("mpeg2parse", "parse");
  g_return_val_if_fail (parse != NULL, -1);

  /* the muxer */
  mux = gst_elementfactory_make ("avimux", "mux");
  g_return_val_if_fail (mux != NULL, -1);

  /* create the output sink */
  fd = open (argv[2], O_CREAT|O_RDWR|O_TRUNC, S_IREAD|S_IWRITE);
  fdsink = gst_elementfactory_make ("fdsink", "fdsink");
  g_return_val_if_fail (fdsink != NULL, -1);
  gtk_object_set (GTK_OBJECT (fdsink), "fd", fd, NULL);

  gst_bin_add (GST_BIN (pipeline), GST_ELEMENT (src));
  gst_bin_add (GST_BIN (pipeline), GST_ELEMENT (parse));
  gst_bin_add (GST_BIN (pipeline), GST_ELEMENT (mux));
  gst_bin_add (GST_BIN (pipeline), GST_ELEMENT (fdsink));

  gtk_signal_connect (GTK_OBJECT (parse), "new_pad", mp2tomp1_new_pad, pipeline);

  gtk_signal_connect (GTK_OBJECT (src), "eos", GTK_SIGNAL_FUNC (eof), NULL);

  gst_element_connect (src, "src", parse, "sink");
  gst_element_connect (mux, "src", fdsink, "sink");

  g_print("setting to READY state\n");
  gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);

  while (1) {
    gst_bin_iterate (GST_BIN (pipeline));
  }
}