mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-18 07:47:17 +00:00
57a5017c8b
Original commit message from CVS: Fixed a few plugins so that mpeg1 encoding sorta works. Added an mpeg1 encoder example, it uses the autoplugger to convert the stream to audio/video, which is then fed to the encoders.
267 lines
11 KiB
C
267 lines
11 KiB
C
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include <glib.h>
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#include <gst/gst.h>
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static GstElement *mux = NULL;
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static GstElement *merge_subtitles;
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static GstElement *fdsink;
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static void
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eof(GstElement *src)
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{
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g_print("have eos, quitting\n");
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exit(0);
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}
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static GstPad*
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create_muxer (GstElement *pipeline, gchar *type, gchar *number)
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{
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if (!mux) {
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mux = gst_elementfactory_make("system_encode","mux");
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g_return_val_if_fail(mux != NULL, NULL);
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(mux));
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(fdsink));
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gst_pad_connect(gst_element_get_pad(mux,"src"),
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gst_element_get_pad(fdsink,"sink"));
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}
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gtk_object_set(GTK_OBJECT(mux), type, number,NULL);
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return gst_element_get_pad(mux,g_strconcat (type, "_", number, NULL));
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}
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static void
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mp2tomp1 (GstElement *parser, GstPad *pad, GstElement *pipeline)
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{
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GstElement *decode, *decode_video, *play, *encode, *audio_resample;
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GstElement *smooth, *median;
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GstElement *audio_queue, *video_queue;
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GstElement *audio_thread, *video_thread;
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GstElement *videoscale, *audio_encode;
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GstPad *muxerpad;
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g_print("***** a new pad %s was created\n", gst_pad_get_name(pad));
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gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_PAUSED);
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// connect to audio pad
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//if (0) {
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if (strncmp(gst_pad_get_name(pad), "private_stream_1.0", 18) == 0) {
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// construct internal pipeline elements
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decode = gst_elementfactory_make("ac3dec","decode_audio");
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g_return_if_fail(decode != NULL);
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audio_resample = gst_elementfactory_make("audioscale","audioscale");
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g_return_if_fail(audio_resample != NULL);
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gtk_object_set(GTK_OBJECT(audio_resample),"frequency", 44100, NULL);
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audio_encode = gst_elementfactory_make("mpegaudio","audio_encode");
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//audio_encode = gst_elementfactory_make("pipefilter","audio_encode");
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g_return_if_fail(audio_encode != NULL);
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//gtk_object_set(GTK_OBJECT(audio_encode),"command", "lame -x - -", NULL);
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// create the thread and pack stuff into it
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audio_thread = gst_thread_new("audio_thread");
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g_return_if_fail(audio_thread != NULL);
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gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(decode));
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gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(audio_resample));
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gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(audio_encode));
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muxerpad = create_muxer (pipeline, "audio", "00");
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// set up pad connections
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gst_element_add_ghost_pad(GST_ELEMENT(audio_thread),
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gst_element_get_pad(decode,"sink"),"sink");
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gst_pad_connect(gst_element_get_pad(decode,"src"),
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gst_element_get_pad(audio_resample,"sink"));
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gst_pad_connect(gst_element_get_pad(audio_resample,"src"),
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gst_element_get_pad(audio_encode,"sink"));
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gst_pad_connect(gst_element_get_pad(audio_encode,"src"),
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muxerpad);
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// construct queue and connect everything in the main pipelie
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audio_queue = gst_elementfactory_make("queue","audio_queue");
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gtk_object_set(GTK_OBJECT(audio_queue),"max_level",1,NULL);
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_queue));
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_thread));
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gst_pad_connect(pad,
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gst_element_get_pad(audio_queue,"sink"));
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gst_pad_connect(gst_element_get_pad(audio_queue,"src"),
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gst_element_get_pad(audio_thread,"sink"));
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// set up thread state and kick things off
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gtk_object_set(GTK_OBJECT(audio_thread),"create_thread",TRUE,NULL);
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g_print("setting to READY state\n");
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gst_element_set_state(GST_ELEMENT(audio_thread),GST_STATE_READY);
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} else if (strncmp(gst_pad_get_name(pad), "subtitle_stream_4", 17) == 0) {
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//gst_pad_connect(pad,
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// gst_element_get_pad(merge_subtitles,"subtitle"));
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} else if (strncmp(gst_pad_get_name(pad), "audio_", 6) == 0) {
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// construct internal pipeline elements
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decode = gst_elementfactory_make("mad","decode_audio");
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g_return_if_fail(decode != NULL);
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play = gst_elementfactory_make("osssink","play_audio");
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g_return_if_fail(play != NULL);
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// create the thread and pack stuff into it
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audio_thread = gst_thread_new("audio_thread");
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g_return_if_fail(audio_thread != NULL);
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gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(decode));
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gst_bin_add(GST_BIN(audio_thread),GST_ELEMENT(play));
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// set up pad connections
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gst_element_add_ghost_pad(GST_ELEMENT(audio_thread),
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gst_element_get_pad(decode,"sink"),"sink");
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gst_pad_connect(gst_element_get_pad(decode,"src"),
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gst_element_get_pad(play,"sink"));
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// construct queue and connect everything in the main pipelie
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audio_queue = gst_elementfactory_make("queue","audio_queue");
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gtk_object_set(GTK_OBJECT(audio_queue),"max_level",1,NULL);
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_queue));
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_thread));
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gst_pad_connect(pad,
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gst_element_get_pad(audio_queue,"sink"));
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gst_pad_connect(gst_element_get_pad(audio_queue,"src"),
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gst_element_get_pad(audio_thread,"sink"));
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// set up thread state and kick things off
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gtk_object_set(GTK_OBJECT(audio_thread),"create_thread",TRUE,NULL);
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g_print("setting to READY state\n");
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gst_element_set_state(GST_ELEMENT(audio_thread),GST_STATE_READY);
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} else if (strncmp(gst_pad_get_name(pad), "video_", 6) == 0) {
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//} else if (0) {
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//gst_plugin_load("mpeg1encoder");
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// construct internal pipeline elements
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decode_video = gst_elementfactory_make("mpeg2dec","decode_video");
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g_return_if_fail(decode_video != NULL);
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//merge_subtitles = gst_elementfactory_make("mpeg2subt","merge_subtitles");
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//g_return_if_fail(merge_subtitles != NULL);
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videoscale = gst_elementfactory_make("videoscale","videoscale");
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g_return_if_fail(videoscale != NULL);
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gtk_object_set(GTK_OBJECT(videoscale),"width",352, "height", 288,NULL);
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median = gst_elementfactory_make("median","median");
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g_return_if_fail(median != NULL);
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gtk_object_set(GTK_OBJECT(median),"filtersize",5,NULL);
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gtk_object_set(GTK_OBJECT(median),"active",TRUE,NULL);
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smooth = gst_elementfactory_make("smooth","smooth");
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g_return_if_fail(smooth != NULL);
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gtk_object_set(GTK_OBJECT(smooth),"filtersize",5,NULL);
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gtk_object_set(GTK_OBJECT(smooth),"tolerance",9,NULL);
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gtk_object_set(GTK_OBJECT(smooth),"active",FALSE,NULL);
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encode = gst_elementfactory_make("mpeg2enc","encode");
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g_return_if_fail(encode != NULL);
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gtk_object_set(GTK_OBJECT(encode),"frames_per_second",25.0,NULL);
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//gtk_object_set(GTK_OBJECT(encode),"frames_per_second",29.97,NULL);
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//encode = gst_elementfactory_make("mpeg1encoder","encode");
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//gtk_object_set(GTK_OBJECT(show),"width",640, "height", 480,NULL);
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muxerpad = create_muxer (pipeline, "video", "00");
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g_return_if_fail(muxerpad != NULL);
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// create the thread and pack stuff into it
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video_thread = gst_thread_new("video_thread");
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g_return_if_fail(video_thread != NULL);
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gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(decode_video));
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//gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(merge_subtitles));
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gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(median));
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gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(smooth));
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gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(videoscale));
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gst_bin_add(GST_BIN(video_thread),GST_ELEMENT(encode));
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gst_bin_use_cothreads(GST_BIN(video_thread), FALSE);
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// set up pad connections
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gst_element_add_ghost_pad(GST_ELEMENT(video_thread),
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gst_element_get_pad(decode_video,"sink"),"sink");
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gst_pad_connect(gst_element_get_pad(decode_video,"src"),
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gst_element_get_pad(median,"sink"));
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gst_pad_connect(gst_element_get_pad(median,"src"),
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// gst_element_get_pad(merge_subtitles,"video"));
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//gst_pad_connect(gst_element_get_pad(merge_subtitles,"src"),
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gst_element_get_pad(videoscale,"sink"));
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gst_pad_connect(gst_element_get_pad(videoscale,"src"),
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gst_element_get_pad(smooth,"sink"));
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gst_pad_connect(gst_element_get_pad(smooth,"src"),
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gst_element_get_pad(encode,"sink"));
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gst_pad_connect(gst_element_get_pad(encode,"src"),
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muxerpad);
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// construct queue and connect everything in the main pipeline
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video_queue = gst_elementfactory_make("queue","video_queue");
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gtk_object_set(GTK_OBJECT(video_queue),"max_level",1,NULL);
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(video_queue));
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gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(video_thread));
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gst_pad_connect(pad,
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gst_element_get_pad(video_queue,"sink"));
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gst_pad_connect(gst_element_get_pad(video_queue,"src"),
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gst_element_get_pad(video_thread,"sink"));
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// set up thread state and kick things off
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gtk_object_set(GTK_OBJECT(video_thread),"create_thread",TRUE,NULL);
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g_print("setting to READY state\n");
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gst_element_set_state(GST_ELEMENT(video_thread),GST_STATE_READY);
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}
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g_print("\n");
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gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_PLAYING);
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}
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int main(int argc,char *argv[]) {
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GstElement *pipeline, *src, *parse;
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GstElementFactory *fdsinkfactory;
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int fd;
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g_print("have %d args\n",argc);
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gst_init(&argc,&argv);
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pipeline = gst_pipeline_new("pipeline");
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g_return_val_if_fail(pipeline != NULL, -1);
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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_val_if_fail(src != NULL, -1);
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gtk_object_set(GTK_OBJECT(src),"location",argv[1],NULL);
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g_print("should be using file '%s'\n",argv[1]);
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g_print("should be using output file '%s'\n",argv[2]);
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parse = gst_elementfactory_make("mpeg2parse","parse");
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g_return_val_if_fail(parse != NULL, -1);
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fd = open(argv[2],O_CREAT|O_RDWR|O_TRUNC, S_IREAD|S_IWRITE);
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g_return_val_if_fail(fd >= 0, -1);
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fdsinkfactory = gst_elementfactory_find("fdsink");
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g_return_val_if_fail(fdsinkfactory != NULL, -1);
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fdsink = gst_elementfactory_create(fdsinkfactory,"fdsink");
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g_return_val_if_fail(fdsink != NULL, -1);
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gtk_object_set(GTK_OBJECT(fdsink),"fd",fd,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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gtk_signal_connect(GTK_OBJECT(parse),"new_pad",mp2tomp1, pipeline);
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gtk_signal_connect(GTK_OBJECT(src),"eos",GTK_SIGNAL_FUNC(eof),NULL);
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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 READY state\n");
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gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_PLAYING);
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while (1) {
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gst_bin_iterate(GST_BIN(pipeline));
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}
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return 0;
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}
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