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Fixed the mpeg 1 parser. It can now be used to playback the audio stream of an MPEG1 movie (check out test/mp1parse.c).

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Original commit message from CVS:
Fixed the mpeg 1 parser. It can now be used to playback the audio stream
of an MPEG1 movie (check out test/mp1parse.c).
This commit is contained in:
Wim Taymans 2000-02-06 18:50:38 +00:00
parent 8dfef4d6b6
commit b6a297bf09
1 changed files with 36 additions and 5 deletions
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41
test/mp1parse.c
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@ -1,6 +1,7 @@
#include <gst/gst.h> #include <gst/gst.h>
extern gboolean _gst_plugin_spew; extern gboolean _gst_plugin_spew;
GstPipeline *pipeline;
void eof(GstSrc *src) { void eof(GstSrc *src) {
g_print("have eof, quitting\n"); g_print("have eof, quitting\n");
@ -13,21 +14,51 @@ void mp1parse_info_chain(GstPad *pad,GstBuffer *buf) {
} }
void new_pad_created(GstElement *parse, GstPad *pad) { void new_pad_created(GstElement *parse, GstPad *pad) {
GstPad *infopad; GstElementFactory *parsefactory, *decodefactory, *playfactory;
GstElement *parse_audio, *decode, *play;
GstPipeline *audio_pipeline;
g_print("a new pad %s was created\n", gst_pad_get_name(pad)); g_print("a new pad %s was created\n", gst_pad_get_name(pad));
// connect to audio pad // connect to audio pad
if (strncmp(gst_pad_get_name(pad), "audio_", 6) == 0) { if (strncmp(gst_pad_get_name(pad), "audio_", 6) == 0) {
infopad = gst_pad_new("sink",GST_PAD_SINK);
gst_pad_set_chain_function(infopad,mp1parse_info_chain); 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");
g_return_if_fail(parse_audio != NULL);
decode = gst_elementfactory_create(decodefactory,"decode");
g_return_if_fail(decode != NULL);
play = gst_elementfactory_create(playfactory,"play");
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_pad_connect(gst_element_get_pad(parse,gst_pad_get_name(pad)),
infopad); 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);
} }
} }
int main(int argc,char *argv[]) { int main(int argc,char *argv[]) {
GstPipeline *pipeline;
GstElementFactory *srcfactory, *parsefactory; GstElementFactory *srcfactory, *parsefactory;
GstElement *src, *parse; GstElement *src, *parse;