gstreamer x264enc ungültige Puffergröße c

Ich habe versucht, diesen Gstreamer-C-Code zu verwenden (mein System läuft auf Ubuntu 20.04 mit GStreamer 1.16.2 und gcc 9.4.0):

#include <gst/gst.h>
#include <glib.h>
#include <stdio.h>
// gst-launch-1.0 videotestsrc pattern=ball! 'video/x-raw, format=(string)I420, width=(int)1920, height=(int)1080, framerate=(fraction)30/1'! \
//! queue! nvvideoconvert! nvv4l2h264enc bitrate=1000000! rtph264pay! udpsink host=192.168.0.1 port=5000
int
main (int argc, char *argv[])
{
 GstElement *pipeline, *source, *filter, *queue, *converter, *encoder, *payer, *sink;
 GstBus *bus;
 GstMessage *msg;
 GstCaps *filtercaps;
 GstStateChangeReturn ret;
 /* Initialize GStreamer */
 gst_init (&argc, &argv);
 /* Create the elements */
 source = gst_element_factory_make ("filesrc", "source");
 filter = gst_element_factory_make ("capsfilter","filter");
 queue = gst_element_factory_make ("queue","queue");
 converter = gst_element_factory_make ("videoconvert","converter");
 encoder = gst_element_factory_make ("x264enc","encoder");
 payer = gst_element_factory_make ("rtph264pay","payer");
 sink = gst_element_factory_make ("udpsink", "sink");
 
 /* Create the empty pipeline */
 pipeline = gst_pipeline_new ("maxim-pipeline");
 if (!pipeline ||!source ||!filter ||!queue ||!converter ||!encoder ||!payer ||!sink) {
 g_printerr ("Not all elements could be created.\n");
 return -1;
 }
 /* Build the pipeline */
 gst_bin_add_many (GST_BIN (pipeline), source, filter, queue, converter, encoder, payer, sink, NULL);
 
 if (!gst_element_link_many (source,filter,queue,NULL)){
 g_printerr ("Source->filter->queue problem\n");
  gst_object_unref (pipeline);
  return -1;
 }
 
 if (!gst_element_link_many (queue,converter,encoder,NULL)){
  g_printerr ("Queue->converter->encoder problem\n");
  gst_object_unref (pipeline);
  return -1;
 }
 if (!gst_element_link_many(encoder,payer,sink,NULL)){
  g_printerr ("Encoder->payer->sink problem\n");
  gst_object_unref (pipeline);
  return -1;
 }
 /* Modify the properties */
 g_object_set (source, "location", "/home/thmsd/Videos/test.mkv", NULL);
 g_object_set (encoder, "bitrate", 2000000, NULL);
 
 g_object_set (sink, "host","192.168.0.1", NULL);
 g_object_set (sink, "port",5000, NULL);
 
 g_object_set (sink, "sync", "FALSE", NULL);
 
 filtercaps = gst_caps_new_simple ("video/x-raw",
 "format",G_TYPE_STRING,"I420",
 "width", G_TYPE_INT, 1920,
 "height", G_TYPE_INT, 1080,
 "framerate",GST_TYPE_FRACTION,30,1,
 NULL);
 
 g_object_set (filter, "caps", filtercaps, NULL);
 gst_caps_unref (filtercaps);
 /* Start playing */
 ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
 if (ret == GST_STATE_CHANGE_FAILURE) {
 g_printerr ("Unable to set the pipeline to the playing state.\n");
 gst_object_unref (pipeline);
 return -1;
 }
 /* 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);
 /* Parse message */
 if (msg!= NULL) {
 GError *err;
 gchar *debug_info;
 switch (GST_MESSAGE_TYPE (msg)) {
 case GST_MESSAGE_ERROR:
 gst_message_parse_error (msg, &err, &debug_info);
 g_printerr ("Error received from element %s: %s\n",
 GST_OBJECT_NAME (msg->src), err->message);
 g_printerr ("Debugging information: %s\n",
 debug_info? debug_info: "none");
 g_clear_error (&err);
 g_free (debug_info);
 break;
 case GST_MESSAGE_EOS:
 g_print ("End-Of-Stream reached.\n");
 break;
 default:
 /* We should not reach here because we only asked for ERRORs and EOS */
 g_printerr ("Unexpected message received.\n");
 break;
 }
 gst_message_unref (msg);
 }
 /* Free resources */
 gst_object_unref (bus);
 gst_element_set_state (pipeline, GST_STATE_NULL);
 gst_object_unref (pipeline);
 return 0;
}

aber der folgende Fehler tritt auf, der sich tatsächlich auf x264enc bezieht, und übrigens wird dieser Code bearbeitet, zuerst war er Jetson-kompatibel und hatte nvv4l2h264enc:

Das Testvideo, das ich zu streamen versuche, hat die folgenden Eigenschaften:

Lösung des Problems

Beachten Sie zunächst, dass Gstreamer-Booleans nicht mit Großbuchstaben geschrieben werden, verwenden Sie also trueund falseoder verwenden Sie einfach 0 und 1.

x264enc ist auf Jetson möglicherweise nicht so schnell. Sie können Folgendes versuchen:

#include <gst/gst.h>
int main (gint argc, gchar * argv[])
{ 
 gst_init (&argc, &argv);
 GMainLoop *loop = g_main_loop_new (NULL, FALSE);
 GError *error = NULL;
 char* gst_pipeline_str = "filesrc location=/home/nvidia/Videos/bbb_sunflower_1080p_60fps_normal.mkv! matroskademux! parsebin! nvv4l2decoder! nvv4l2h264enc bitrate=20000000 insert-sps-pps=1 insert-vui=1 idrinterval=15! h264parse! rtph264pay! udpsink host=127.0.0.1 port=5004";
 
 /* x264enc may be much slower:*/
 /* 
 char* gst_pipeline_str = "filesrc location=/home/nvidia/Videos/bbb_sunflower_1080p_60fps_normal.mkv! matroskademux! parsebin! nvv4l2decoder! nvvidconv! video/x-raw! x264enc bitrate=20000 tune=zerolatency insert-vui=1! h264parse! rtph264pay! udpsink host=127.0.0.1 port=5004";
 */
 /* Create the pipeline */
 GstElement *pipeline = gst_parse_launch (gst_pipeline_str, &error);
 if (error ||!pipeline) {
 g_error ("Failed to create pipeline\n");
 exit(-1);
 }
 /* This will output changes in terminal, you may remove it later to make it quiet. */
 g_signal_connect(pipeline, "deep-notify", G_CALLBACK(gst_object_default_deep_notify), NULL);
 /* Ok, successfully created the pipeline, now start it */
 gst_element_set_state (pipeline, GST_STATE_READY);
 gst_element_set_state (pipeline, GST_STATE_PLAYING);
 /* wait until it's up and running or failed */
 if (gst_element_get_state (pipeline, NULL, NULL, -1) == GST_STATE_CHANGE_FAILURE) {
 g_error ("Failed to go into PLAYING state");
 exit(-2);
 }
 /* You may have to further manage bus for EOS... */
 
 g_print ("Running...\n");
 g_main_loop_run (loop);
 return 0;
}

Dies habe ich erfolgreich auf Jetson getestet. Sie würden sich an Ihre Dateiquelle und Empfängeradresse / -port anpassen und als test_transcode_MKV_to_RTPH264.c speichern und dann erstellen mit:

gcc -Wall -o test_transcode_MKV_to_RTPH264 test_transcode_MKV_to_RTPH264.c `pkg-config --cflags --libs gstreamer-1.0 gobject-2.0 glib-2.0`

und Teststreaming:

./test_transcode_MKV_to_RTPH264 

Wenn der Receiver gstreamer installiert hat, sollten Sie in der Lage sein, Folgendes anzuzeigen:

gst-launch-1.0 udpsrc port=5004! application/x-rtp,encoding-name=H264! rtpjitterbuffer latency=300! rtph264depay! decodebin! autovideosink

Um RTPH264 mit FFMPEG oder VLC zu empfangen, müssen Sie möglicherweise eine SDP-Datei erstellen.