Bug 700127 – seek/position query fails with mpeg-ts video file

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Bug 700127 - seek/position query fails with mpeg-ts video file


Summary:	seek/position query fails with mpeg-ts video file


Status:	RESOLVED DUPLICATE of bug 698050

Product:	GStreamer
Classification:	Platform
Component:	dont know
Version:	1.0.6
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	NONE
Assigned To:	GStreamer Maintainers
QA Contact:	GStreamer Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2013-05-11 16:27 UTC by lips.john
Modified:	2013-05-11 17:29 UTC

See Also:
GNOME target:	---
GNOME version:	---

Attachments
stdout without debug (349 bytes, application/octet-stream) 2013-05-11 16:27 UTC, lips.john	Details
stdout with debug (8.32 KB, application/octet-stream) 2013-05-11 16:29 UTC, lips.john	Details
source for testing (10.86 KB, application/octet-stream) 2013-05-11 16:34 UTC, lips.john	Details

Description lips.john 2013-05-11 16:27:59 UTC

Created attachment 243854 [details]
stdout without debug

As you can see in test_output pos_ns jumps around forward and back despite the fact that this is the output for four one second skips forward as defined here (in fullscreen02.c):

        gint64 dur_ns, pos_ns, seek_ns;
        GstFormat format;

        format = GST_FORMAT_TIME;

        if ( !gst_element_query_position(pipeline,format,&pos_ns) )
            g_print("query position failed\n");

        seek_ns = pos_ns + 10*GST_SECOND;
        g_print ("pos_ns: %li, seek_ns: %li\n",pos_ns,seek_ns);
        g_print ("position: %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (seek_ns));

        if ( !gst_element_seek_simple (pipeline, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT, seek_ns) ) 
          g_print ("Seek failed!\n");

Comment 1 lips.john 2013-05-11 16:29:29 UTC

Created attachment 243855 [details]
stdout with debug

Comment 2 lips.john 2013-05-11 16:34:45 UTC

Created attachment 243856 [details]
source for testing

Comment 3 lips.john 2013-05-11 16:47:45 UTC

I tried to upload mpeg-ts video segment, but getting one smaller than 1600 kb is not practical and I have no where to upload the file to.  Any suggestions?

Comment 4 lips.john 2013-05-11 16:49:26 UTC

I tried to upload mpeg-ts video segment, but getting one smaller than 1600 kb is not practical and I have no where to upload the file to.  Any suggestions?

Comment 5 lips.john 2013-05-11 16:53:52 UTC

This is the pipeline I used:
pipeline = gst_parse_launch("filesrc location=test.mpg ! decodebin name=decoder decoder. ! queue ! audioconvert ! audioresample ! alsasink decoder. ! deinterlace ! videoconvert ! xvimagesink",&error);

Although I get the same behavior using playbin within the same C program.

Comment 6 lips.john 2013-05-11 17:03:21 UTC

A better description of the problem is located here:

http://stackoverflow.com/questions/16493607/gstreamer-1-0-seeking-within-an-mpegts-not-working-as-expected

I thought I could edit the description of the bug once committed, but I was wrong.

Comment 7 lips.john 2013-05-11 17:15:19 UTC

A test mpeg-ts video file can be downloaded from:

http://rapidshare.com/files/3517203356/test.mpg

Comment 8 Tim-Philipp Müller 2013-05-11 17:29:10 UTC

Thanks for the bug report. This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find.

*** This bug has been marked as a duplicate of bug 698050 ***