Android VideoView GStreamer Streaming（MediaController 不起作用）

Question

我有一些小项目将视频流式传输到 Android 设备。流媒体已完成，但我在控制视频方面遇到问题。当我按下暂停键时，MediaController 不起作用，没有任何效果。 VideoView.pause() 也不起作用。流媒体服务器基于GStreamer（服务器是我的朋友写的），我使用的是Android 2.2 CyanogenMod。

这是服务器代码：

#include <gst/gst.h>

#include <gst/rtsp-server/rtsp-server.h>

int
main (int argc, char *argv[])
{
  GMainLoop *loop;
  GstRTSPServer *server;
  GstRTSPMediaMapping *mapping;
  GstRTSPMediaFactory *factory;
  gchar *str;

  gst_init (&argc, &argv);

  if (argc < 2) {
    g_message ("usage: %s <filename>", argv[0]);
    return -1;
  }

  loop = g_main_loop_new (NULL, FALSE);

  /* create a server instance */
  server = gst_rtsp_server_new ();

  /* get the mapping for this server, every server has a default mapper object
   * that be used to map uri mount points to media factories */
  mapping = gst_rtsp_server_get_media_mapping (server);

  str = g_strdup_printf ("( "
       "filesrc location=\"%s\" ! decodebin2 name=d "
       "d. ! queue ! videoscale ! video/x-raw-yuv, width=500, height=300 "
       "! ffenc_mpeg4 ! rtpmp4vpay name=pay0 "
       "d. ! queue ! audioconvert ! faac ! rtpmp4apay name=pay1"
       " )", argv[1]);

  /* make a media factory for a test stream. The default media factory can use
   * gst-launch syntax to create pipelines. 
   * any launch line works as long as it contains elements named pay%d. Each
   * element with pay%d names will be a stream */
  factory = gst_rtsp_media_factory_new ();
  gst_rtsp_media_factory_set_launch (factory, str);
  g_free (str);

  /* attach the test factory to the /test url */
  gst_rtsp_media_mapping_add_factory (mapping, "/test", factory);

  /* don't need the ref to the mapper anymore */
  g_object_unref (mapping);

  /* attach the server to the default maincontext */
  gst_rtsp_server_attach (server, NULL);

  /* start serving */
  g_main_loop_run (loop);

  return 0;
}

Answer 1

根据我收集的信息，android 中的 VideoView 只接受 h.264 feed，因此您需要使用 h.264 进行编码。