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#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_connect(G_OBJECT(encode),"frame_encoded",G_CALLBACK(frame_encoded),NULL);
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);
g_object_set (G_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);
g_object_set (G_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));
g_signal_connect (G_OBJECT (parse), "new_pad",
G_CALLBACK (mp2tomp1_new_pad), pipeline);
g_signal_connect (G_OBJECT (src), "eos",
G_CALLBACK (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));
}
}
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