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a2ca5007bd
Avoid relocations and refactor so that we don't calculate the fixed and known at compile time maximum string size every time. Also skip the mini object flags which we are not going to print anyway.
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/* GStreamer
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* Copyright (C) 2011 David Schleef <ds@schleef.org>
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* Copyright (C) 2011 Tim-Philipp Müller <tim.muller@collabora.co.uk>
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* Copyright (C) 2014 Tim-Philipp Müller <tim@centricular.com>
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* Copyright (C) 2014 Vincent Penquerc'h <vincent@collabora.co.uk>
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*
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* gstelements_private.c: Shared code for core elements
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include "gst/gst.h"
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#include "gstelements_private.h"
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#define BUFFER_FLAG_SHIFT 4
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G_STATIC_ASSERT ((1 << BUFFER_FLAG_SHIFT) == GST_MINI_OBJECT_FLAG_LAST);
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/* Returns a newly allocated string describing the flags on this buffer */
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char *
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gst_buffer_get_flags_string (GstBuffer * buffer)
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{
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static const char flag_strings[] =
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"\000\000\000\000live\000decode-only\000discont\000resync\000corrupted\000"
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"marker\000header\000gap\000droppable\000delta-unit\000tag-memory\000"
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"FIXME";
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static const guint8 flag_idx[] = { 0, 1, 2, 3, 4, 9, 21, 29, 36, 46, 53,
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60, 64, 74, 85, 96
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};
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int i, max_bytes;
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char *flag_str, *end;
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/* max size is all flag strings plus a space or terminator after each one */
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max_bytes = sizeof (flag_strings);
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flag_str = g_malloc (max_bytes);
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end = flag_str;
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end[0] = '\0';
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for (i = BUFFER_FLAG_SHIFT; i < G_N_ELEMENTS (flag_idx); i++) {
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if (GST_MINI_OBJECT_CAST (buffer)->flags & (1 << i)) {
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strcpy (end, flag_strings + flag_idx[i]);
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end += strlen (end);
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end[0] = ' ';
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end[1] = '\0';
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end++;
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}
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}
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return flag_str;
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}
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