AW: TS-File not seekable
Bernhard Graaf
bernhard.graaf at gmx.de
Fri Nov 30 10:19:15 PST 2012
Hi Kris,
Don't work as expected. The pipe with using 'gst_parse_launch' is running
well, but the result is the same. Normal playing not a problem but seeking
has a problem.
In the meantime I've got an error message: 'GStreamer-CRITICAL **:
gst_segment_do_seek: assertion `segment->format == format' failed'.
If I do the same seeking with other files (f.e. with 'gst-launch' on command
line), I have no problems with that. So the ts-file has a problem.
I've also tried to reduce the pipe (dvbbasebin ! queue ! filesink) without
any additional parameter, but the result is the same.
I've no idea where to search to fix it. I've also no idea where the
different is between command line and gst_parse_launch. There should be a
different because of different results.
Any additional ideas? Could the DVB-Card be the problem (Conexant
CX24123/CX24109 Chipset)?
You make me happy if you have any ideas to fix it!
Regards
Bernhard
-----Ursprüngliche Nachricht-----
Von: gstreamer-devel-bounces+bernhard.graaf=gmx.de at lists.freedesktop.org
[mailto:gstreamer-devel-bounces+bernhard.graaf=gmx.de at lists.freedesktop.org]
Im Auftrag von Bernhard Graaf
Gesendet: Freitag, 30. November 2012 10:56
An: krzysztof.konopko at youview.com; 'Discussion of the development of and
with GStreamer'
Betreff: AW: TS-File not seekable
Hi Kris,
Thanks a lot for your answer.
I'll check it with using 'gst_parse_launch'. That's a good idea.
For the problem I have:
The timing information of the TS-File seams to be corrupt, because in a
second program (using tsdemux or playbin) the playback is hanging after try
to seek using gst_element_seek. If I open another file (generated by
gst-launch) its OK. Therefore I believe that there is a problem with the
file not with the seeking program.
Thanks again. I will follow your idea and give you the result of my test.
Bernhard
-----Ursprüngliche Nachricht-----
Von: gstreamer-devel-bounces+bernhard.graaf=gmx.de at lists.freedesktop.org
[mailto:gstreamer-devel-bounces+bernhard.graaf=gmx.de at lists.freedesktop.org]
Im Auftrag von Krzysztof Konopko
Gesendet: Freitag, 30. November 2012 10:38
An: gstreamer-devel at lists.freedesktop.org
Betreff: Re: TS-File not seekable
Hi Bernhard,
What do you mean by "different results" and "problem with seeking"?
Could you be more specific? Does your program produce non empty file?
Why do you need tsparse if you writing to a file? Are you going to
handle some messages from tsparse?
In the first instance you don't have to force EOS in your app. Just stop
your program on the command line by pressing Ctrl+C and the default
signal handler will do the job. You can improve it later.
You can learn more about your program behaviour if you set GST_DEBUG
variable when running it, e. g.:
GST_DEBUG=4 ./your-app
See gst-launch-1.0 manual to learn more about debugging levels.
I'd recommend making your app simpler so you can evolve it later. Use
gst_parse_launch() instead of gst_element_factory_make(). Less code,
less oportunity to make a mistake and you can always refer to any
element in the pipe by its name (use 'name' property):
GError *error;
GstElement *dvb_pipe = gst_parse_launch ("dvbbasebin name=dvb"
" ! queue ! tsparse "
" ! filesink qos=TRUE",
&error);
if (!dvb_pipe) {
g_printerr ("Failed to create the pipeline: %s\n",
error ? error->message : "(unknown error)");
return FALSE;
}
dvb_bus = gst_pipeline_get_bus (GST_PIPELINE (dvb_pipe));
gst_bus_add_watch (dvb_bus, dvb_bus_call, NULL);
gst_object_unref (dvb_bus);
Return gboolean instead of int unless you have a good reason to return int.
You can use g_object_set() to set multiple properties:
dvb_source = gst_bin_get_by_name (GST_BIN (dvb_pipe), "dvb");
g_object_set (G_OBJECT (dvb_source),
"adapter", atoi(argv[3]),
"frontend", atoi(argv[6]),
"frequency", atoi(freq),
"program_numbers", argv[7],
"polarity", argv[9],
"symbol-rate", atoi(argv[5]),
NULL);
Cheers,
Kris
On 30/11/12 08:03, Bernhard Graaf wrote:
> I've made some test to finish the pipe:
>
> Direct call of 'g_main_loop_quit (loop)' ore parsing message with
> 'gst_element_send_event (dvb_pipe, gst_event_new_eos())' and handle the
> loop_quit in the message loop function, but all with the same result.
>
> My question is now: Where is the different between gst-launch and my own
> program in the ts-file results? What do gst-launch more then I do?
>
>
>
> If someone could help me, I will be very happy!
>
>
>
> Thanks a lot
>
> Bernhard
>
>
>
>
>
> ---------------------------------------------------------------------
>
>
>
> Hi @ all,
>
>
>
> I've an issue with my own program using dvbbasebin:
>
> The pipe: gst-launch-1.0 dvbbasebin adapter=1 frequency=12544000
> program-numbers="17501" polarity="h" symbol-rate=22000 ! queue ! tsparse !
> filesink location=test_ts.mpg
>
> Results a file that has no problem with seeking
>
> But my own program:
>
>
>
>
>
> **************************************************************************
>
> #include <stdio.h>
>
> #include <unistd.h>
>
> #include <sys/types.h>
>
> #include <sys/stat.h>
>
> #include <fcntl.h>
>
> #include <stdlib.h>
>
> #include <string.h>
>
> #include <errno.h>
>
> #include <gst/gst.h>
>
> #include <glib.h>
>
> #include <syslog.h>
>
> #include <sys/time.h>
>
> #include <sys/select.h>
>
>
>
>
>
> GstElement *dvb_pipe, *dvb_source, *dvb_sink, *dvb_queue, *dvb_parse;
>
> GstBus *dvb_bus;
>
> GMainLoop *loop;
>
>
>
> static gboolean
>
> dvb_bus_call (GstBus *tmp_bus,
>
> GstMessage *msg,
>
> gpointer data)
>
> {
>
>
>
> char tmp_str[254];
>
>
>
> switch (GST_MESSAGE_TYPE (msg)) {
>
>
>
> case GST_MESSAGE_EOS:
>
> g_print ("End of stream\n");
>
> g_main_loop_quit (loop);
>
> break;
>
>
>
> case GST_MESSAGE_ERROR: {
>
> gchar *debug;
>
> GError *error;
>
>
>
> gst_message_parse_error (msg, &error, &debug);
>
> g_free (debug);
>
>
>
> sprintf(tmp_str, "Error: %s\n", error->message);
>
> g_printerr ("%s\n", tmp_str);
>
> syslog(LOG_ERR, "%s\n",tmp_str);
>
> g_error_free (error);
>
> g_main_loop_quit (loop);
>
>
>
> break;
>
> }
>
> default:
>
> break;
>
> }
>
>
>
> return TRUE;
>
> }
>
>
>
>
>
> int init_gst_tv()
>
> {
>
>
>
> gst_init (0, NULL);
>
>
>
> dvb_pipe = gst_pipeline_new ("DVB-Streamer");
>
> dvb_source = gst_element_factory_make ("dvbbasebin", "dvb-source");
>
> dvb_queue = gst_element_factory_make ("queue", "dvb-queue");
>
> dvb_parse = gst_element_factory_make ("tsparse", "dvb-parse");
>
> dvb_sink = gst_element_factory_make ("filesink", "dvb-sink");
>
>
>
>
>
> if (!dvb_pipe || !dvb_source || !dvb_queue || !dvb_parse || !dvb_sink)
>
> {
>
> g_printerr ("One element could not be created. Exiting.\n");
>
> syslog(LOG_ERR, "Ein Pipe-Element nicht erstellt -->
> Programmabbruch\n");
>
> if(!dvb_pipe) g_printerr("DVB-Pipeline not created\n");
>
> else if(!dvb_source) g_printerr("DVB-Source not created\n");
>
> else if(!dvb_queue) g_printerr("DVB-Queue not created\n");
>
> else if(!dvb_parse) g_printerr("DVB-Parse not created\n");
>
> else if(!dvb_sink) g_printerr("DVB-Sink not created\n");
>
> return -1;
>
> }
>
>
>
> dvb_bus = gst_pipeline_get_bus (GST_PIPELINE (dvb_pipe));
>
> gst_bus_add_watch (dvb_bus, dvb_bus_call, NULL);
>
> gst_object_unref (dvb_bus);
>
>
>
> gst_bin_add_many (GST_BIN (dvb_pipe), dvb_source, dvb_queue, dvb_parse,
> dvb_sink, NULL);
>
> gst_element_link_many (dvb_source, dvb_queue, dvb_parse, dvb_sink,
NULL);
>
>
>
> g_object_set (G_OBJECT (dvb_sink), "qos", TRUE, NULL);
>
>
>
> return 1;
>
> }
>
>
>
> int main (int argc, char **argv)
>
> {
>
>
>
>
>
> char tmp_str[254], freq[40], file_name[254], rec_pids[25];
>
> char np_name[254];
>
> int pid = 0;
>
> int fd;
>
>
>
> sprintf(freq,"%s000", argv[4]);
>
> sprintf(file_name, "test.mpg");
>
>
>
> loop = g_main_loop_new (NULL, FALSE);
>
>
>
> init_gst_tv();
>
>
>
> g_object_set (G_OBJECT (dvb_source), "adapter", atoi(argv[3]), NULL);
>
> g_object_set (G_OBJECT (dvb_source), "frontend", atoi(argv[6]), NULL);
>
> g_object_set (G_OBJECT (dvb_source), "frequency", atoi(freq), NULL);
>
> g_object_set (G_OBJECT (dvb_source), "program_numbers", argv[7], NULL);
>
> g_object_set (G_OBJECT (dvb_source), "polarity", argv[9], NULL);
>
> g_object_set (G_OBJECT (dvb_source), "symbol-rate", atoi(argv[5]),
NULL);
>
> g_object_set (G_OBJECT (dvb_sink), "location", file_name, NULL);
>
>
>
>
>
> gst_element_set_state (dvb_pipe, GST_STATE_PLAYING);
>
>
>
> g_print ("Running...\n");
>
> g_main_loop_run (loop);
>
>
>
> gst_element_set_state (dvb_pipe, GST_STATE_NULL);
>
>
>
> g_print ("Deleting pipeline\n");
>
> gst_object_unref (GST_OBJECT (dvb_pipe));
>
>
>
> return 1;
>
> }
>
>
****************************************************************************
> *
>
>
>
> Is the result not seekable!
>
>
>
> Something missing to generate a seekable ts-file?
>
>
>
> Thanks a lot and sorry for this long mail!
>
> Bernhard
>
>
>
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
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