gstreamer/test/avi2mpg.c

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C
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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>
#define BUFFER 1
extern gboolean _gst_plugin_spew;
gboolean idle_func(gpointer data);
int fd;
char *outfile;
GstElement *mux;
void eof(GstSrc *src) {
g_print("have eos, quitting\n");
exit(0);
}
void new_pad_created(GstElement *parse,GstPad *pad,GstElement *pipeline) {
GstElement *audio_encode;
GstElement *encode, *smooth, *median;
GstElement *audio_queue, *video_queue;
GstElement *audio_thread, *video_thread;
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 (0) {
if (strncmp(gst_pad_get_name(pad), "audio_", 6) == 0) {
gst_plugin_load("mpegaudio");
// construct internal pipeline elements
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(audio_encode));
gtk_object_set(GTK_OBJECT(mux),"audio","00",NULL);
// set up pad connections
gst_element_add_ghost_pad(GST_ELEMENT(audio_thread),
gst_element_get_pad(audio_encode,"sink"));
gst_pad_connect(gst_element_get_pad(audio_encode,"src"),
gst_element_get_pad(mux,"audio_00"));
// 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",BUFFER,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 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) {
//} else if (0) {
gst_plugin_load("smooth");
gst_plugin_load("median");
gst_plugin_load("mpeg2enc");
// construct internal pipeline elements
smooth = gst_elementfactory_make("smooth","smooth");
g_return_if_fail(smooth != NULL);
median = gst_elementfactory_make("median","median");
g_return_if_fail(median != NULL);
gtk_object_set(GTK_OBJECT(median),"filtersize",5,NULL);
gtk_object_set(GTK_OBJECT(median),"active",TRUE,NULL);
gtk_object_set(GTK_OBJECT(smooth),"filtersize",16,NULL);
gtk_object_set(GTK_OBJECT(smooth),"tolerance",16,NULL);
gtk_object_set(GTK_OBJECT(smooth),"active",FALSE,NULL);
encode = gst_elementfactory_make("mpeg2enc","encode");
g_return_if_fail(encode != NULL);
gtk_object_set(GTK_OBJECT(mux),"video","00",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(smooth));
gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(median));
gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(encode));
gst_pad_connect(gst_element_get_pad(median,"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"),
gst_element_get_pad(mux,"video_00"));
// set up pad connections
gst_element_add_ghost_pad(GST_ELEMENT(video_thread),
gst_element_get_pad(median,"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",BUFFER,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 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[]) {
GstPipeline *pipeline;
GstElement *src, *parse, *fdsink;
GstElementFactory *fdsinkfactory;
g_print("have %d args\n",argc);
//_gst_plugin_spew = TRUE;
g_thread_init(NULL);
gst_init(&argc,&argv);
gst_plugin_load("parseavi");
gst_plugin_load("system_encode");
pipeline = gst_pipeline_new("pipeline");
g_return_val_if_fail(pipeline != NULL, -1);
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]);
parse = gst_elementfactory_make("parseavi","parse");
g_return_val_if_fail(parse != NULL, -1);
mux = gst_elementfactory_make("system_encode","mux");
g_return_val_if_fail(mux != NULL, -1);
g_print("should be using output file '%s'\n",argv[2]);
outfile = argv[2];
fd = open(argv[2],O_CREAT|O_RDWR|O_TRUNC);
fdsinkfactory = gst_elementfactory_find("fdsink");
g_return_val_if_fail(fdsinkfactory != NULL, -1);
fdsink = gst_elementfactory_create(fdsinkfactory,"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",
GTK_SIGNAL_FUNC(new_pad_created),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"));
gst_pad_connect(gst_element_get_pad(mux,"src"),
gst_element_get_pad(fdsink,"sink"));
g_print("setting to READY state\n");
gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_READY);
g_print("about to enter loop\n");
g_idle_add(idle_func,src);
gdk_threads_enter();
gtk_main();
gdk_threads_leave();
return 0;
}
gboolean idle_func(gpointer data) {
gst_src_push(GST_SRC(data));
return TRUE;
}