[Bug 755723] New: REAL Media File make system Hang <gst_rmdemux_chain:Bogus looking header, unprintable FOURCC>

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Mon Sep 28 03:02:22 PDT 2015 

https://bugzilla.gnome.org/show_bug.cgi?id=755723

            Bug ID: 755723
           Summary: REAL Media File make system Hang
                    <gst_rmdemux_chain:Bogus looking header, unprintable
                    FOURCC>
    Classification: Platform
           Product: GStreamer
           Version: 1.6.0
                OS: All
            Status: NEW
          Severity: blocker
          Priority: Normal
         Component: gst-plugins-ugly
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: orangedotashu at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Hello, 

I were checking the GST-Real media Parser code and found that one clip (Test
file) makes my system Hangs (Windows x86, Linux, Win CE etc). 

this problem for the video file is present from GST 0.1 to Even in GST 1.6.
please help to guide me which part of code can be debugged further for the
same.

>1: Test clip run command
gst-launch-1.0 --gst-debug-level=5 playbin uri=file:///D:/11_OnePiece_RV4.rmvb

>2: Test clip source file 
Will attach somewhere and share the location in comment later on this bug.

>3: Logs with Debug level 5
Attached.

>4: My Analysis:
a. Test real media clip headers are correct.
   I checked each and every information and links (including size and other
details for all Types of FOURCC.
b. While decoding, it detects [.RMF, PROP , MDPR , MDPR, MDPR, CONT] correctly
next available FOURCC is "DATA", which were never detected.
c. This file i am able to play on lots of other frameworks and plateform (VLC
(Win/ Linux), Android devices etc.).

Logs analysis is as below (Line# 97156)
----
0:00:05.198350818  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2350:gst_base_src_update_length:<source> reading offset 858,
length 31, size 178754120, segment.stop -1, maxsize 178754120
0:00:05.198403458  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2451:gst_base_src_get_range:<source> calling create offset 858
length 31, time 0
0:00:05.198453449  6904   0F7AEA08 DEBUG             GST_MEMORY
gstmemory.c:138:gst_memory_init: new memory 005683F0, maxsize:34 offset:0
size:31
0:00:05.198512048  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2305:gst_base_src_do_sync:<source> we have no clock
0:00:05.198562370  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2515:gst_base_src_get_range:<source> buffer ok
0:00:05.198611699  6904   0F7AEA08 DEBUG                default
rmutils.c:83:gst_rm_utils_read_tags: File Content : (CONT) len = 31
0:00:05.198662022  6904   0F7AEA08 DEBUG                default
rmutils.c:111:gst_rm_utils_read_tags: title = 
0:00:05.198718965  6904   0F7AEA08 DEBUG                default
rmutils.c:104:gst_rm_utils_read_tags: converting tag from CP1252 to UTF-8
0:00:05.198790807  6904   0F7AEA08 DEBUG                default
rmutils.c:111:gst_rm_utils_read_tags: artist = û¤·¤ÎZHU
0:00:05.198845433  6904   0F7AEA08 DEBUG                default
rmutils.c:111:gst_rm_utils_read_tags: copyright = bbs.jumpcn.com
0:00:05.198896418  6904   0F7AEA08 DEBUG                default
rmutils.c:111:gst_rm_utils_read_tags: comment = 
0:00:05.198949058  6904   0F7AEA08 DEBUG             GST_MEMORY
gstmemory.c:87:_gst_memory_free: free memory 005683F0
0:00:05.199001698  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2350:gst_base_src_update_length:<source> reading offset 178576568,
length 10, size 178754120, segment.stop -1, maxsize 178754120
0:00:05.199054999  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2451:gst_base_src_get_range:<source> calling create offset
178576568 length 10, time 0
0:00:05.199105653  6904   0F7AEA08 DEBUG             GST_MEMORY
gstmemory.c:138:gst_memory_init: new memory 0F7EC500, maxsize:13 offset:0
size:10
0:00:05.199173191  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2305:gst_base_src_do_sync:<source> we have no clock
0:00:05.199224506  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2515:gst_base_src_get_range:<source> buffer ok
0:00:05.199275822  6904   0F7AEA08 WARN                 rmdemux
rmdemux.c:1039:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable
FOURCC
0:00:05.199327800  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2350:gst_base_src_update_length:<source> reading offset 178576568,
length 10, size 178754120, segment.stop -1, maxsize 178754120
0:00:05.199381102  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2451:gst_base_src_get_range:<source> calling create offset
178576568 length 10, time 0
0:00:05.199475787  6904   0F7AEA08 DEBUG             GST_MEMORY
gstmemory.c:138:gst_memory_init: new memory 0F7EC4A0, maxsize:13 offset:0
size:10
0:00:05.199536372  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2305:gst_base_src_do_sync:<source> we have no clock
0:00:05.199586695  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2515:gst_base_src_get_range:<source> buffer ok
0:00:05.199635362  6904   0F7AEA08 DEBUG        GST_PERFORMANCE
gstadapter.c:502:gst_adapter_map: copy remaining 10 bytes from adapter
0:00:05.199684691  6904   0F7AEA08 DEBUG                adapter
gstadapter.c:296:copy_into_unchecked: bsize 10, skip 4, csize 6
0:00:05.199736338  6904   0F7AEA08 WARN                 rmdemux
rmdemux.c:1039:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable
FOURCC
0:00:05.199784673  6904   0F7AEA08 DEBUG        GST_PERFORMANCE
gstadapter.c:502:gst_adapter_map: copy remaining 10 bytes from adapter
0:00:05.199833340  6904   0F7AEA08 DEBUG                adapter
gstadapter.c:296:copy_into_unchecked: bsize 10, skip 8, csize 2
0:00:05.199883994  6904   0F7AEA08 WARN                 rmdemux
rmdemux.c:1039:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable
FOURCC
0:00:05.199931999  6904   0F7AEA08 DEBUG             GST_MEMORY
gstmemory.c:87:_gst_memory_free: free memory 0F7EC500
0:00:05.199983645  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2350:gst_base_src_update_length:<source> reading offset 178576568,
length 10, size 178754120, segment.stop -1, maxsize 178754120
0:00:05.200037278  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2451:gst_base_src_get_range:<source> calling create offset
178576568 length 10, time 0
0:00:05.200087932  6904   0F7AEA08 DEBUG             GST_MEMORY
gstmemory.c:138:gst_memory_init: new memory 0F7EC440, maxsize:13 offset:0
size:10
0:00:05.200147855  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2305:gst_base_src_do_sync:<source> we have no clock
0:00:05.200198177  6904   0F7AEA08 DEBUG                basesrc
gstbasesrc.c:2515:gst_base_src_get_range:<source> buffer ok
0:00:05.200246844  6904   0F7AEA08 DEBUG        GST_PERFORMANCE
gstadapter.c:502:gst_adapter_map: copy remaining 10 bytes from adapter
0:00:05.200295511  6904   0F7AEA08 DEBUG                adapter
gstadapter.c:296:copy_into_unchecked: bsize 10, skip 2, csize 8
0:00:05.200346827  6904   0F7AEA08 WARN                 rmdemux
rmdemux.c:1039:gst_rmdemux_chain:<rmdemux0> Bogus looking header, unprintable
FOURCC 
----

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