96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
#include "gst.h"
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#include <gst/app/gstappsrc.h>
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typedef struct SampleHandlerUserData {
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int pipelineId;
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} SampleHandlerUserData;
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void gstreamer_init(void) {
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gst_init(NULL, NULL);
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}
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GMainLoop *gstreamer_send_main_loop = NULL;
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void gstreamer_send_start_mainloop(void) {
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gstreamer_send_main_loop = g_main_loop_new(NULL, FALSE);
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g_main_loop_run(gstreamer_send_main_loop);
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}
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static gboolean gstreamer_send_bus_call(GstBus *bus, GstMessage *msg, gpointer data) {
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switch (GST_MESSAGE_TYPE(msg)) {
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case GST_MESSAGE_EOS:
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g_print("End of stream\n");
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exit(1);
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break;
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case GST_MESSAGE_ERROR: {
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gchar *debug;
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GError *error;
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gst_message_parse_error(msg, &error, &debug);
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g_free(debug);
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g_printerr("Error: %s\n", error->message);
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g_error_free(error);
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exit(1);
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}
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default:
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break;
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}
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return TRUE;
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}
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GstFlowReturn gstreamer_send_new_sample_handler(GstElement *object, gpointer user_data) {
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GstSample *sample = NULL;
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GstBuffer *buffer = NULL;
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gpointer copy = NULL;
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gsize copy_size = 0;
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SampleHandlerUserData *s = (SampleHandlerUserData *)user_data;
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g_signal_emit_by_name (object, "pull-sample", &sample);
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if (sample) {
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buffer = gst_sample_get_buffer(sample);
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if (buffer) {
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gst_buffer_extract_dup(buffer, 0, gst_buffer_get_size(buffer), ©, ©_size);
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goHandlePipelineBuffer(copy, copy_size, GST_BUFFER_DURATION(buffer), s->pipelineId);
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}
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gst_sample_unref (sample);
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}
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return GST_FLOW_OK;
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}
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GstElement *gstreamer_send_create_pipeline(char *pipeline) {
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GError *error = NULL;
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return gst_parse_launch(pipeline, &error);
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}
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void gstreamer_send_start_pipeline(GstElement *pipeline, int pipelineId) {
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SampleHandlerUserData *s = calloc(1, sizeof(SampleHandlerUserData));
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s->pipelineId = pipelineId;
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GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline));
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gst_bus_add_watch(bus, gstreamer_send_bus_call, NULL);
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gst_object_unref(bus);
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GstElement *appsink = gst_bin_get_by_name(GST_BIN(pipeline), "appsink");
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g_object_set(appsink, "emit-signals", TRUE, NULL);
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g_signal_connect(appsink, "new-sample", G_CALLBACK(gstreamer_send_new_sample_handler), s);
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gst_object_unref(appsink);
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gst_element_set_state(pipeline, GST_STATE_PLAYING);
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}
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void gstreamer_send_play_pipeline(GstElement *pipeline) {
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gst_element_set_state(pipeline, GST_STATE_PLAYING);
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}
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void gstreamer_send_stop_pipeline(GstElement *pipeline) {
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gst_element_set_state(pipeline, GST_STATE_NULL);
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}
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