defplay_video(file_path):Gst.init(None)pipeline=Gst.parse_launch(f"filesrc location={file_path} ! decodebin ! autovideosink")pipeline.set_state(Gst.State.PLAYING)bus=pipeline.get_bus()msg=bus.timed_pop_filtered(Gst.CLOCK_TIME_NONE,Gst.MessageType.ERROR|Gst.MessageType.EOS)ifmsg:ifmsg.type...
import gi gi.require_version('Gst', '1.0') from gi.repository import Gst Gst.init(None) pipeline = Gst.parse_launch('videotestsrc ! videoconvert ! autovideosink') pipeline.set_state(Gst.State.PLAYING) loop = GObject.MainLoop() try: loop.run() except: pass pipeline.set_state(Gst.State...
decodebin ! autovideosink")pipeline.set_state(Gst.State.PLAYING)bus=pipeline.get_bus()msg=bus.timed_pop_filtered(Gst.CLOCK_TIME_NONE,Gst.MessageType.ERROR|Gst.MessageType.EOS)ifmsg:ifmsg.type==Gst.MessageType.ERROR:err,
当使用 gst_element_set_state(pipeline,GST_STATE_PLAYING); 通知pipeline进行状态转换时,pipeline内部元素的转换顺序是添加顺序的逆序,即是从 sink -> filter -> src 的顺序进行的。 注意这个转换的流程是同步执行的,也就是上一个没转换完,下一个是不会开始转换的,不会几个element 一起转换。
// Enable log if set to true. void gst_debug_set_active (gboolean active); // Set the default log level. void gst_debug_set_default_threshold (GstDebugLevel level); 示例代码如下: #include <gst/gst.h> #include <stdio.h> /* declare log function with the required attribute */ ...
pipeline.set_state(Gst.State.PLAYING)try: loop.run()except:pass# cleanuppipeline.set_state(Gst.State.NULL) 然后就跟上面的操作差不多了,使用dot命令转化为png即可 参考: https://forums.developer.nvidia.com/t/python-deepstream-program-not-generating-dot-file/163837...
gst_element_set_state(pipeline,GST_STATE_PLAYING); } ~VideoCapture(){ if(pipeline){ // 停止管道并清理资源 gst_element_set_state(pipeline,GST_STATE_NULL); gst_object_unref(pipeline); } } voidcapture(){ cv::Matframe; while(true){ ...
if (ret == GST_STATE_CHANGE_FAILURE) { g_printerr ("Unable to set the pipeline to the playing state.\n"); gst_object_unref (data.pipeline); return -1; } /* Listen to the bus */ bus = gst_element_get_bus (data.pipeline); ...
g_printerr ("Unable to set the pipeline to the playing state.\n"); gst_object_unref (data.pipeline); return -1; } /* Listen to the bus */ bus = gst_element_get_bus (data.pipeline); do { msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE, ...
if (ret == GST_STATE_CHANGE_FAILURE) { g_printerr ("Unable to set the pipeline to the playing state.\n"); gst_object_unref (data.pipeline); return -1; } /* Listen to the bus */ bus = gst_element_get_bus (data.pipeline); ...