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gst extract appsink.

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This commit is contained in:
Miroslav Šedivý 2021-11-28 22:19:06 +01:00
parent 7b2c1570bf
commit 710d0c9cd0
5 changed files with 34 additions and 31 deletions
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37
internal/capture/gst/gst.c
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@ -8,14 +8,7 @@ void gstreamer_init(void) {
gst_init(NULL, NULL);
}
GMainLoop *gstreamer_send_main_loop = NULL;
void gstreamer_send_start_mainloop(void) {
gstreamer_send_main_loop = g_main_loop_new(NULL, FALSE);
g_main_loop_run(gstreamer_send_main_loop);
}
static gboolean gstreamer_send_bus_call(GstBus *bus, GstMessage *msg, gpointer data) {
static gboolean gstreamer_bus_call(GstBus *bus, GstMessage *msg, gpointer data) {
switch (GST_MESSAGE_TYPE(msg)) {
case GST_MESSAGE_EOS:
@ -41,7 +34,7 @@ static gboolean gstreamer_send_bus_call(GstBus *bus, GstMessage *msg, gpointer d
return TRUE;
}
GstFlowReturn gstreamer_send_new_sample_handler(GstElement *object, gpointer user_data) {
static GstFlowReturn gstreamer_send_new_sample_handler(GstElement *object, gpointer user_data) {
GstSample *sample = NULL;
GstBuffer *buffer = NULL;
gpointer copy = NULL;
@ -61,27 +54,31 @@ GstFlowReturn gstreamer_send_new_sample_handler(GstElement *object, gpointer use
return GST_FLOW_OK;
}
void gstreamer_send_start_pipeline(GstElement *pipeline, int pipelineId) {
void gstreamer_pipeline_attach_appsink(GstElement *pipeline, char *sinkName, int pipelineId) {
SampleHandlerUserData *s = calloc(1, sizeof(SampleHandlerUserData));
s->pipelineId = pipelineId;
GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline));
gst_bus_add_watch(bus, gstreamer_send_bus_call, NULL);
gst_object_unref(bus);
GstElement *appsink = gst_bin_get_by_name(GST_BIN(pipeline), "appsink");
GstElement *appsink = gst_bin_get_by_name(GST_BIN(pipeline), sinkName);
g_object_set(appsink, "emit-signals", TRUE, NULL);
g_signal_connect(appsink, "new-sample", G_CALLBACK(gstreamer_send_new_sample_handler), s);
gst_object_unref(appsink);
}
GstElement *gstreamer_pipeline_create(char *pipelineStr, GError **error) {
GstElement *pipeline = gst_parse_launch(pipelineStr, error);
GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline));
gst_bus_add_watch(bus, gstreamer_bus_call, NULL);
gst_object_unref(bus);
return pipeline;
}
void gstreamer_pipeline_play(GstElement *pipeline) {
gst_element_set_state(pipeline, GST_STATE_PLAYING);
}
void gstreamer_send_play_pipeline(GstElement *pipeline) {
gst_element_set_state(pipeline, GST_STATE_PLAYING);
}
void gstreamer_send_stop_pipeline(GstElement *pipeline) {
void gstreamer_pipeline_stop(GstElement *pipeline) {
gst_element_set_state(pipeline, GST_STATE_NULL);
gst_object_unref(pipeline);
}