appsrc warning

[Mario García]

Hi all.

My application consist of pushing images from a folder (actually now is not reading the info, but is emulate this bytes values with black to almost white) to a gstremaer pipeline (appsrc --> videoconvert --> capsfilter --> omxh264enc -->h264parse --> rtph264pay -->udpsink ) using the appsrc plugin. 

In addition, I would like that the program runs until I want to. Hence there is a loop which calls "push" function infinite times.  

THE CODE: 

#include <gst/gst.h>

#include <stddef.h>

#include <stdlib.h>

#include <string.h>

#include <stdio.h>

#include <gst/app/gstappsrc.h>

#include <gst/app/gstappsink.h>

#include <malloc.h>

#define TOP 10

#define HEIGHTF 512

#define WIDTHF 640

int main(int argc, char *argv[])

{

  GstElement *pipeline, *source, *convert, *enc, *parse, *rtppay, *sink, *capsFilter;

        GstCaps *capsSource, *capsConvert;

GstBus *bus;

GstMessage *msg;

GstStateChangeReturn ret;

GstFlowReturn Ret;

  

/* Initialize GStreamer */

gst_init (&argc, &argv);

/* Create the elements */

//1-SOURCE

source = gst_element_factory_make ("appsrc", NULL);

//Source caps

        capsSource = gst_caps_new_simple ("video/x-raw",

          "format",  G_TYPE_STRING, "GRAY8",

          "width", G_TYPE_INT, 640,

          "height", G_TYPE_INT, 512, 

  "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,

  "interlace-mode", G_TYPE_STRING, "progressive", NULL) ;

        gst_app_src_set_caps (GST_APP_SRC(source), capsSource);

//Set the block propierty to TRUE

g_object_set(source, "block", TRUE, NULL);

//Set the max-bytes propierty

g_object_set(source, "max-bytes", 655360, NULL);

//2-CONVERSION 

convert = gst_element_factory_make ("videoconvert", NULL);

//3-CAPS Filter

capsFilter = gst_element_factory_make ("capsfilter", NULL);

capsConvert = gst_caps_new_simple ("video/x-raw",

          "format",  G_TYPE_STRING, "I420", NULL);

g_object_set(capsFilter, "caps", capsConvert, NULL);

//4-CODEC 

enc = gst_element_factory_make ("omxh264enc", "enc");

g_object_set(enc, "bitrate", 1000000, NULL);

//5-PARSSING

parse = gst_element_factory_make ("h264parse", "parse");  

  //6-RTP PAYLOAD

rtppay = gst_element_factory_make ("rtph264pay", "rtppay");

g_object_set (G_OBJECT (rtppay), "ssrc", 575096457,  NULL);

//7-DESTINATION

sink = gst_element_factory_make ("udpsink", "sink");

g_object_set(G_OBJECT (sink), "host", "127.0.0.1", NULL );

g_object_set(G_OBJECT (sink), "port", 9078, NULL );

/* Create the empty pipeline */

  pipeline = gst_pipeline_new ("test-pipeline");

 

if (!pipeline || !source || !convert ||  !capsFilter ||  !enc || !parse || !rtppay || !sink) {

  g_printerr ("Not all elements could be created.\n"); 

  return -1;

}

/* Build the pipeline */

gst_bin_add_many (GST_BIN (pipeline), source, convert, capsFilter, enc, parse, rtppay, sink, NULL);

if (gst_element_link_many (source, convert, capsFilter, enc, parse, rtppay, sink, NULL) != TRUE) { 

    g_printerr ("Elements could not be linked.\n");

    gst_object_unref (pipeline);

    return -1;

}

/* 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;

}

//CREATE AND FEED BUFFER

GstBuffer *buf;

GstMapInfo map;

int imageCount=0;

while (imageCount<TOP){

//Allocate and create Buffer

buf=gst_buffer_new_and_alloc(HEIGHTF*WIDTHF);

//To avoid coping in memory

gst_buffer_map(buf, &map, GST_MAP_WRITE);

// We set the buffer to values from 0 (black) to 234 (almost white)

memset (map.data, 26*imageCount, HEIGHTF*WIDTHF);

//Unmap

gst_buffer_unmap(buf, &map);

//Push

Ret=gst_app_src_push_buffer(GST_APP_SRC(source), buf);

if (Ret!=GST_FLOW_OK) 

printf ("\nError pushing buffer");

//keep the loop alive

imageCount++;

if(imageCount==10)

imageCount=0;

}

/* 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);/* Create the empty pipeline */

pipeline = gst_pipeline_new ("test-pipeline");

return 0;

}

It compile without errors, but when I execute I obtain the next output. I do not know how to continue, because it seem like the speed of feeding is wrong or maybe an allocation memory issue. Please, if someone could help me, I would be very grateful. 

DEBUG INFO 

ubuntu@tegra-ubuntu:~/mario/Project/MarioApp/Images_app$ ./ALLIMAGESMEMGST 

0:00:00.060633916  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1147:gst_app_src_set_caps:<appsrc0> setting caps to video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.060954416  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1300:gst_app_src_set_max_bytes:<appsrc0> setting max-bytes to 655360

(ALLIMAGESMEMGST:4114): GLib-GObject-WARNING **: g_object_set_valist: object class 'GstAppSrc' has no property named 'width'

0:00:00.070510333  4114   0x139d20 WARN                     omx /dvs/git/dirty/git-master_linux/external/gstreamer/gst-omx/omx/gstomx.c:2814:plugin_init: Failed to load configuration file: Valid key file could not be found in search dirs (searched in: /home/ubuntu/.config:/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg as per GST_OMX_CONFIG_DIR environment variable, the xdg user config directory (or XDG_CONFIG_HOME) and the system config directory (or XDG_CONFIG_DIRS)

0:00:00.091209833  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.093006166  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.095336833  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.096090833  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.096366500  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.096731416  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

Inside NvxLiteH264DecoderLowLatencyInitNvxLiteH264DecoderLowLatencyInit set DPB and Mjstreaming0:00:00.123102833  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:742:gst_app_src_start:<appsrc0> starting

0:00:00.123251750  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1222:gst_app_src_get_size:<appsrc0> getting size of -1

0:00:00.123316083  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:865:gst_app_src_do_seek:<appsrc0> seeking to 0, format bytes

0:00:00.123684083  4114   0x14bbb0 FIXME                default gstutils.c:3648:gst_pad_create_stream_id_printf_valist:<appsrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id

0:00:00.124006083  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1537:gst_app_src_push_buffer_full:<appsrc0> queueing buffer 0x181160

0:00:00.124418750  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1537:gst_app_src_push_buffer_full:<appsrc0> queueing buffer 0x181200

0:00:00.124764333  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1502:gst_app_src_push_buffer_full:<appsrc0> queue filled (655360 >= 655360)

0:00:00.124814416  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1502:gst_app_src_push_buffer_full:<appsrc0> queue filled (655360 >= 655360)

0:00:00.124853666  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1523:gst_app_src_push_buffer_full:<appsrc0> waiting for free space

0:00:00.125336916  4114   0x14bbb0 WARN                GST_PADS gstpad.c:3669:gst_pad_peer_query:<appsrc0:src> could not send sticky events

0:00:00.125457583  4114   0x14bbb0 DEBUG                 appsrc gstappsrc.c:1052:gst_app_src_create:<appsrc0> we have buffer 0x181160 of size 327680

0:00:00.126733083  4114   0x14bbb0 WARN                 basesrc gstbasesrc.c:2865:gst_base_src_loop:<appsrc0> error: Internal data flow error.

0:00:00.126812416  4114   0x14bbb0 WARN                 basesrc gstbasesrc.c:2865:gst_base_src_loop:<appsrc0> error: streaming task paused, reason not-negotiated (-4)

0:00:00.128321250  4114   0x14bbb0 WARN               baseparse gstbaseparse.c:1153:gst_base_parse_sink_event_default:<parse> error: No valid frames found before end of stream

0:00:00.126777250  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1537:gst_app_src_push_buffer_full:<appsrc0> queueing buffer 0x1812a0

0:00:00.128696000  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1502:gst_app_src_push_buffer_full:<appsrc0> queue filled (655360 >= 655360)

0:00:00.128746333  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1502:gst_app_src_push_buffer_full:<appsrc0> queue filled (655360 >= 655360)

0:00:00.128783583  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1523:gst_app_src_push_buffer_full:<appsrc0> waiting for free space

 

 Thank you very much in advance.

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[David Ing]

I don't see exactly what you are doing wrong.  You are in fact setting the "width" on a caps structure and not the GstAppSrc (which is correct).  It looks like something is trying to set the "width" on the GstAppSrc but it is unclear what is trying to do that.  You might be able to narrow it down by stepping through the GstAppSrc with a debugger ... or perhaps that error is unrelated to the real problem.

It looks like the "omx" plugin is searching for a config file or a key file that it cannot load.  I don't have any experience with that plugin but I guess you would need to fix that part.  You might try a different encoder (like x264) to get around that omx problem.

Sometimes it helps to add a queue in the pipeline (perhaps before your encoder) ... I don't know enough to say whether that would help here but it might be worth a shot.

On Wed, Dec 12, 2018 at 5:43 AM Mario García <[hidden email]> wrote:

Hi all.

My application consist of pushing images from a folder (actually now is not reading the info, but is emulate this bytes values with black to almost white) to a gstremaer pipeline (appsrc --> videoconvert --> capsfilter --> omxh264enc -->h264parse --> rtph264pay -->udpsink ) using the appsrc plugin. 

In addition, I would like that the program runs until I want to. Hence there is a loop which calls "push" function infinite times.  

THE CODE: 

#include <gst/gst.h>

#include <stddef.h>

#include <stdlib.h>

#include <string.h>

#include <stdio.h>

#include <gst/app/gstappsrc.h>

#include <gst/app/gstappsink.h>

#include <malloc.h>

#define TOP 10

#define HEIGHTF 512

#define WIDTHF 640

int main(int argc, char *argv[])

{

  GstElement *pipeline, *source, *convert, *enc, *parse, *rtppay, *sink, *capsFilter;

        GstCaps *capsSource, *capsConvert;

GstBus *bus;

GstMessage *msg;

GstStateChangeReturn ret;

GstFlowReturn Ret;

  

/* Initialize GStreamer */

gst_init (&argc, &argv);

/* Create the elements */

//1-SOURCE

source = gst_element_factory_make ("appsrc", NULL);

//Source caps

        capsSource = gst_caps_new_simple ("video/x-raw",

          "format",  G_TYPE_STRING, "GRAY8",

          "width", G_TYPE_INT, 640,

          "height", G_TYPE_INT, 512, 

  "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,

  "interlace-mode", G_TYPE_STRING, "progressive", NULL) ;

        gst_app_src_set_caps (GST_APP_SRC(source), capsSource);

//Set the block propierty to TRUE

g_object_set(source, "block", TRUE, NULL);

//Set the max-bytes propierty

g_object_set(source, "max-bytes", 655360, NULL);

//2-CONVERSION 

convert = gst_element_factory_make ("videoconvert", NULL);

//3-CAPS Filter

capsFilter = gst_element_factory_make ("capsfilter", NULL);

capsConvert = gst_caps_new_simple ("video/x-raw",

          "format",  G_TYPE_STRING, "I420", NULL);

g_object_set(capsFilter, "caps", capsConvert, NULL);

//4-CODEC 

enc = gst_element_factory_make ("omxh264enc", "enc");

g_object_set(enc, "bitrate", 1000000, NULL);

//5-PARSSING

parse = gst_element_factory_make ("h264parse", "parse");  

  //6-RTP PAYLOAD

rtppay = gst_element_factory_make ("rtph264pay", "rtppay");

g_object_set (G_OBJECT (rtppay), "ssrc", 575096457,  NULL);

//7-DESTINATION

sink = gst_element_factory_make ("udpsink", "sink");

g_object_set(G_OBJECT (sink), "host", "127.0.0.1", NULL );

g_object_set(G_OBJECT (sink), "port", 9078, NULL );

/* Create the empty pipeline */

  pipeline = gst_pipeline_new ("test-pipeline");

 

if (!pipeline || !source || !convert ||  !capsFilter ||  !enc || !parse || !rtppay || !sink) {

  g_printerr ("Not all elements could be created.\n"); 

  return -1;

}

/* Build the pipeline */

gst_bin_add_many (GST_BIN (pipeline), source, convert, capsFilter, enc, parse, rtppay, sink, NULL);

if (gst_element_link_many (source, convert, capsFilter, enc, parse, rtppay, sink, NULL) != TRUE) { 

    g_printerr ("Elements could not be linked.\n");

    gst_object_unref (pipeline);

    return -1;

}

/* 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;

}

//CREATE AND FEED BUFFER

GstBuffer *buf;

GstMapInfo map;

int imageCount=0;

while (imageCount<TOP){

//Allocate and create Buffer

buf=gst_buffer_new_and_alloc(HEIGHTF*WIDTHF);

//To avoid coping in memory

gst_buffer_map(buf, &map, GST_MAP_WRITE);

// We set the buffer to values from 0 (black) to 234 (almost white)

memset (map.data, 26*imageCount, HEIGHTF*WIDTHF);

//Unmap

gst_buffer_unmap(buf, &map);

//Push

Ret=gst_app_src_push_buffer(GST_APP_SRC(source), buf);

if (Ret!=GST_FLOW_OK) 

printf ("\nError pushing buffer");

//keep the loop alive

imageCount++;

if(imageCount==10)

imageCount=0;

}

/* 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);/* Create the empty pipeline */

pipeline = gst_pipeline_new ("test-pipeline");

return 0;

}

It compile without errors, but when I execute I obtain the next output. I do not know how to continue, because it seem like the speed of feeding is wrong or maybe an allocation memory issue. Please, if someone could help me, I would be very grateful. 

DEBUG INFO 

ubuntu@tegra-ubuntu:~/mario/Project/MarioApp/Images_app$ ./ALLIMAGESMEMGST 

0:00:00.060633916  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1147:gst_app_src_set_caps:<appsrc0> setting caps to video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.060954416  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1300:gst_app_src_set_max_bytes:<appsrc0> setting max-bytes to 655360

(ALLIMAGESMEMGST:4114): GLib-GObject-WARNING **: g_object_set_valist: object class 'GstAppSrc' has no property named 'width'

0:00:00.070510333  4114   0x139d20 WARN                     omx /dvs/git/dirty/git-master_linux/external/gstreamer/gst-omx/omx/gstomx.c:2814:plugin_init: Failed to load configuration file: Valid key file could not be found in search dirs (searched in: /home/ubuntu/.config:/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg as per GST_OMX_CONFIG_DIR environment variable, the xdg user config directory (or XDG_CONFIG_HOME) and the system config directory (or XDG_CONFIG_DIRS)

0:00:00.091209833  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.093006166  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.095336833  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.096090833  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.096366500  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

0:00:00.096731416  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:591:gst_app_src_internal_get_caps:<appsrc0> caps: video/x-raw, format=(string)GRAY8, width=(int)640, height=(int)512, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive

Inside NvxLiteH264DecoderLowLatencyInitNvxLiteH264DecoderLowLatencyInit set DPB and Mjstreaming0:00:00.123102833  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:742:gst_app_src_start:<appsrc0> starting

0:00:00.123251750  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1222:gst_app_src_get_size:<appsrc0> getting size of -1

0:00:00.123316083  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:865:gst_app_src_do_seek:<appsrc0> seeking to 0, format bytes

0:00:00.123684083  4114   0x14bbb0 FIXME                default gstutils.c:3648:gst_pad_create_stream_id_printf_valist:<appsrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id

0:00:00.124006083  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1537:gst_app_src_push_buffer_full:<appsrc0> queueing buffer 0x181160

0:00:00.124418750  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1537:gst_app_src_push_buffer_full:<appsrc0> queueing buffer 0x181200

0:00:00.124764333  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1502:gst_app_src_push_buffer_full:<appsrc0> queue filled (655360 >= 655360)

0:00:00.124814416  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1502:gst_app_src_push_buffer_full:<appsrc0> queue filled (655360 >= 655360)

0:00:00.124853666  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1523:gst_app_src_push_buffer_full:<appsrc0> waiting for free space

0:00:00.125336916  4114   0x14bbb0 WARN                GST_PADS gstpad.c:3669:gst_pad_peer_query:<appsrc0:src> could not send sticky events

0:00:00.125457583  4114   0x14bbb0 DEBUG                 appsrc gstappsrc.c:1052:gst_app_src_create:<appsrc0> we have buffer 0x181160 of size 327680

0:00:00.126733083  4114   0x14bbb0 WARN                 basesrc gstbasesrc.c:2865:gst_base_src_loop:<appsrc0> error: Internal data flow error.

0:00:00.126812416  4114   0x14bbb0 WARN                 basesrc gstbasesrc.c:2865:gst_base_src_loop:<appsrc0> error: streaming task paused, reason not-negotiated (-4)

0:00:00.128321250  4114   0x14bbb0 WARN               baseparse gstbaseparse.c:1153:gst_base_parse_sink_event_default:<parse> error: No valid frames found before end of stream

0:00:00.126777250  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1537:gst_app_src_push_buffer_full:<appsrc0> queueing buffer 0x1812a0

0:00:00.128696000  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1502:gst_app_src_push_buffer_full:<appsrc0> queue filled (655360 >= 655360)

0:00:00.128746333  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1502:gst_app_src_push_buffer_full:<appsrc0> queue filled (655360 >= 655360)

0:00:00.128783583  4114   0x139d20 DEBUG                 appsrc gstappsrc.c:1523:gst_app_src_push_buffer_full:<appsrc0> waiting for free space

 

 Thank you very much in advance.

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