mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-30 15:52:32 +00:00
d6d5df1f9d
Original commit message from CVS: The first functional video MPEG1 decoder. The decoder still opens a window to show the video. This is not optimised at all. Some glitches and crashes due to bugs in mp1videoparse.c. I need to queue incomplete slices in mp1videoparse before sending them to the decoder. use test/mp1parse on your favorite video to test. No audio/video sync, no QoS at all.
138 lines
4.7 KiB
C
138 lines
4.7 KiB
C
#include <gst/gst.h>
|
|
|
|
extern gboolean _gst_plugin_spew;
|
|
GstPipeline *pipeline;
|
|
|
|
void eof(GstSrc *src) {
|
|
g_print("have eof, quitting\n");
|
|
exit(0);
|
|
}
|
|
|
|
void mp1parse_info_chain(GstPad *pad,GstBuffer *buf) {
|
|
//g_print("sink : got buffer of size %d\n",GST_BUFFER_SIZE(buf));
|
|
gst_buffer_unref(buf);
|
|
}
|
|
|
|
void new_pad_created(GstElement *parse, GstPad *pad) {
|
|
GstElementFactory *parsefactory, *decodefactory, *playfactory;
|
|
GstElement *parse_audio, *parse_video, *decode, *decode_video, *play;
|
|
GstPipeline *audio_pipeline, *video_pipeline;
|
|
GstPad *infopad;
|
|
|
|
g_print("a new pad %s was created\n", gst_pad_get_name(pad));
|
|
|
|
// connect to audio pad
|
|
if (strncmp(gst_pad_get_name(pad), "audio_", 6) == 0) {
|
|
|
|
parsefactory = gst_elementfactory_find("mp3parse");
|
|
g_return_if_fail(parsefactory != NULL);
|
|
decodefactory = gst_elementfactory_find("mpg123");
|
|
g_return_if_fail(decodefactory != NULL);
|
|
playfactory = gst_elementfactory_find("audiosink");
|
|
g_return_if_fail(playfactory != NULL);
|
|
|
|
parse_audio = gst_elementfactory_create(parsefactory,"parse_audio");
|
|
g_return_if_fail(parse_audio != NULL);
|
|
decode = gst_elementfactory_create(decodefactory,"decode_audio");
|
|
g_return_if_fail(decode != NULL);
|
|
play = gst_elementfactory_create(playfactory,"play_audio");
|
|
g_return_if_fail(play != NULL);
|
|
|
|
audio_pipeline = gst_pipeline_new("audio_pipeline");
|
|
g_return_if_fail(audio_pipeline != NULL);
|
|
|
|
gst_bin_add(GST_BIN(audio_pipeline),GST_ELEMENT(parse_audio));
|
|
gst_bin_add(GST_BIN(audio_pipeline),GST_ELEMENT(decode));
|
|
gst_bin_add(GST_BIN(audio_pipeline),GST_ELEMENT(play));
|
|
gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(audio_pipeline));
|
|
|
|
gst_pad_connect(gst_element_get_pad(parse,gst_pad_get_name(pad)),
|
|
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"));
|
|
|
|
g_print("setting to RUNNING state\n");
|
|
gst_element_set_state(GST_ELEMENT(audio_pipeline),GST_STATE_RUNNING);
|
|
|
|
}
|
|
else if (strncmp(gst_pad_get_name(pad), "video_", 6) == 0) {
|
|
|
|
parsefactory = gst_elementfactory_find("mp1videoparse");
|
|
g_return_if_fail(parsefactory != NULL);
|
|
decodefactory = gst_elementfactory_find("mpeg_play");
|
|
g_return_if_fail(parsefactory != NULL);
|
|
|
|
parse_video = gst_elementfactory_create(parsefactory,"parse_video");
|
|
g_return_if_fail(parse_video != NULL);
|
|
decode = gst_elementfactory_create(decodefactory,"decode_video");
|
|
g_return_if_fail(decode_video != NULL);
|
|
|
|
video_pipeline = gst_pipeline_new("video_pipeline");
|
|
g_return_if_fail(video_pipeline != NULL);
|
|
|
|
infopad = gst_pad_new("sink",GST_PAD_SINK);
|
|
gst_pad_set_chain_function(infopad,mp1parse_info_chain);
|
|
|
|
gst_bin_add(GST_BIN(video_pipeline),GST_ELEMENT(parse_video));
|
|
gst_bin_add(GST_BIN(video_pipeline),GST_ELEMENT(decode));
|
|
|
|
gst_pad_connect(gst_element_get_pad(parse,gst_pad_get_name(pad)),
|
|
gst_element_get_pad(parse_video,"sink"));
|
|
gst_pad_connect(gst_element_get_pad(parse_video,"src"),
|
|
gst_element_get_pad(decode,"sink"));
|
|
gst_pad_connect(gst_element_get_pad(decode,"src"),
|
|
infopad);
|
|
|
|
|
|
g_print("setting to RUNNING state\n");
|
|
gst_element_set_state(GST_ELEMENT(video_pipeline),GST_STATE_RUNNING);
|
|
}
|
|
}
|
|
|
|
int main(int argc,char *argv[]) {
|
|
GstElementFactory *srcfactory, *parsefactory;
|
|
GstElement *src, *parse;
|
|
|
|
g_print("have %d args\n",argc);
|
|
|
|
_gst_plugin_spew = TRUE;
|
|
gst_init(&argc,&argv);
|
|
// gst_plugin_load("mp3parse");
|
|
gst_plugin_load_all();
|
|
|
|
pipeline = gst_pipeline_new("pipeline");
|
|
g_return_if_fail(pipeline != NULL);
|
|
|
|
srcfactory = gst_elementfactory_find("disksrc");
|
|
g_return_if_fail(srcfactory != NULL);
|
|
parsefactory = gst_elementfactory_find("mpeg1parse");
|
|
g_return_if_fail(parsefactory != NULL);
|
|
|
|
src = gst_elementfactory_create(srcfactory,"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]);
|
|
parse = gst_elementfactory_create(parsefactory,"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",
|
|
GTK_SIGNAL_FUNC(new_pad_created),NULL);
|
|
|
|
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);
|
|
|
|
g_print("about to enter loop\n");
|
|
while (1)
|
|
gst_src_push(GST_SRC(src));
|
|
}
|