[Bug 757928] New: audio-quantize: Fix dither_buffer memory leak

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=757928

            Bug ID: 757928
           Summary: audio-quantize: Fix dither_buffer memory leak
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: vineeth.tm at samsung.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

running elements/adder tests with valgrind results in following leak

==21674== 88,200 bytes in 2 blocks are definitely lost in loss record 2,394 of
2,394
==21674==    at 0x402C17C: malloc (in
/usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==21674==    by 0x402E3AF: realloc (in
/usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==21674==    by 0x42A7CB8: g_realloc (in
/lib/i386-linux-gnu/libglib-2.0.so.0.4002.0)
==21674==    by 0x51E4898: setup_dither_buf (audio-quantize.c:125)
==21674==    by 0x51E4961: gst_audio_quantize_quantize_int_dither_none
(audio-quantize.c:171)
==21674==    by 0x51E5145: gst_audio_quantize_samples (audio-quantize.c:498)
==21674==    by 0x51E3433: gst_audio_converter_samples (audio-converter.c:479)
==21674==    by 0x52400FD: gst_audio_convert_transform (gstaudioconvert.c:738)
==21674==    by 0x4076666: default_generate_output (gstbasetransform.c:2180)
==21674==    by 0x407913C: gst_base_transform_chain (gstbasetransform.c:2333)
==21674==    by 0x412F8C7: gst_pad_push_data (gstpad.c:4108)
==21674==    by 0x4138476: gst_pad_push (gstpad.c:4479)
==21674==    by 0x4071652: gst_base_src_loop (gstbasesrc.c:2845)
==21674==    by 0x41669D8: gst_task_func (gsttask.c:331)
==21674==    by 0x4167B7E: default_func (gsttaskpool.c:68)
==21674==    by 0x42C9404: ??? (in /lib/i386-linux-gnu/libglib-2.0.so.0.4002.0)
==21674==    by 0x42C89A9: ??? (in /lib/i386-linux-gnu/libglib-2.0.so.0.4002.0)
==21674==    by 0x436DF6F: start_thread (pthread_create.c:312)
==21674==    by 0x446FBED: clone (clone.S:129)

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