【问题标题】:How to play video and audio together simultaneously with gstreamer in GTK3.0GTK3.0中如何使用gstreamer同时播放视频和音频
【发布时间】:2019-03-01 08:19:58
【问题描述】:
【问题讨论】:
标签:
c
audio
gtk3
gstreamer-1.0
【解决方案1】:
您可以添加此形状。无需使用gst_init(&argc, &argv);。只需将 pipeline 添加到您的代码中即可。您可以在 gstreamer 网站上找到此代码。 https://gstreamer.freedesktop.org/documentation/tutorials/basic/hello-world.html
#include <gst/gst.h>
int main(int argc, char *argv[]) {
GstElement *pipeline;
GstBus *bus;
GstMessage *msg;
/* Initialize GStreamer */
gst_init (&argc, &argv);
/* Build the pipeline */
pipeline = gst_parse_launch ("playbin uri=https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm", NULL);
/* Start playing */
gst_element_set_state (pipeline, GST_STATE_PLAYING);
/* Wait until error or EOS */
bus = gst_element_get_bus (pipeline);
msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE, GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
/* Free resources */
if (msg != NULL)
gst_message_unref (msg);
gst_object_unref (bus);
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (pipeline);
return 0;
}